AAS direct signaling framing methodologies to support high capacity wireless links

Patent metadata

Field	Value
Publication number	US-9509539-B2
Application number	US-201514814971-A
Country	US
Kind code	B2
Filing date	Jul 31, 2015
Priority date	Nov 7, 2006
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

A new frame structure applicable to the IEEE 802.16 OFDMA wireless waveform is described, for the purposes of increasing base station capacity, increasing subscriber link rates and extending base station range. The frame structure provides the necessary constructs so that advance signal processing technologies such as Stacked Carrier Spread Spectrum and adaptive antenna technology may be used in combination with these constructs in order to realize these gains. These concepts are equally applicable in other advanced wireless waveforms based on OFDM or OFDMA such as LTE or UMB.

First claim

What is claimed is:

1. An adaptive antenna system (AAS) comprising:
a plurality of antennae for communicating between a base station and a subscriber station, in which the AAS employs a direct signaling structure operative with a downlink subframe and an uplink subframe, the downlink subframe being generated by the base station and the uplink subframe being generated by the subscriber station;
the downlink subframe comprising:
a plurality of downlink access subchannels, wherein…

Assignees

• Directv Group Inc

Inventors

• Branlund Dale A
• Bromberg Matthew C

Classifications

• H04B7/2621

  Electricity · mapped topic

• H04L5/0044

  Electricity · mapped topic

• H04L27/2605 Primary

  Electricity · mapped topic

• H04B7/0678

  Electricity · mapped topic

• H04W74/002 Primary

  Electricity · mapped topic