Determining an order of modulation for each transport block based on initial channel state information

Patent metadata

Field	Value
Publication number	US-9807723-B2
Application number	US-201213992726-A
Country	US
Kind code	B2
Filing date	Mar 30, 2012
Priority date	Aug 12, 2011
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

A system for updating channel state information may include a base station wirelessly sending a reference signal to a user device. The bases station may receive channel state information based on the reference signal. Then, the bases station may determine a number of transport blocks to enable, a number of layers to use, and an order of modulation for each transport block based on the channel state information. The bases station may then receive subsequent channel state information from the user device using the determined parameters.

First claim

What is claimed is:

1. A system comprising:
a transmitter;
a receiver to wirelessly receive a reference signal over one or more wireless channels from a base station;
a memory storing instructions;
a processor to execute the instructions to:
calculate initial channel state information of the one or more wireless channels by analyzing the reference signal; and
receive a determined a number of transport blocks to enable, based on the initial channel state information, a determined number of layers to use, and a determined order of modulation for each transport block wherein the transmitter is to wirelessly send subsequent channel state information to the base station using the determined number of transport blocks, the determined number of layers, and the determined order of modulation for each transport block; and

wherein analyzing the reference signal comprises comparing first characteristics of the reference signal as sent initially to second characteristics of the reference signal after it has been received.

2. The system of claim 1 further comprising a display.

3. The system of claim 1 , wherein the subsequent channel state information is sent over a physical uplink shared channel during an aperiodic channel state information-only transmission.

Assignees

• Shirani-Mehr Hooman
• Fwu Jong-Kae
• Bashar Shafi
• Intel Corp

Inventors

• Shirani-Mehr Hooman
• Fwu Jong-Kae
• Bashar Shafi

Classifications

• H04W76/046

  Electricity · mapped topic

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L1/0003

  by switching between different modulation schemes · CPC title

• H04W84/045

  using private Base Stations, e.g. femto Base Stations, home Node B · CPC title

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title