SYSTEMS AND METHODS FOR CONCURRENT SPECTRUM USAGE WITHIN ACTIVELY USED SPECTRUM

• US 20150304855A1
• Filed: 03/27/2015
• Published: 10/22/2015
• Est. Priority Date: 04/16/2014
• Status: Active Grant

• Current Assignee: Rearden, LLC
• Original Assignee: Rearden, LLC
• Inventors: Perlman, Stephen G., Forenza, Antonio, Di Dio, Mario, Saibi, Fadi
• Granted Patent: US 11,190,947 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/2615 using hybrid frequency-time division multiple access [FDMA-TDMA]
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

Systems and methods are described to concurrently utilize actively used spectrum for new TDD or FDD networks, and also for enabling Distributed-Input Distributed Output (DIDO) techniques to be used with both the new networks and the existing networks in the same spectrum.

Claims

1. A wireless network operating in FDD mode, wherein

a wireless network operating in TDD mode concurrently operates in the same spectrum.

2. The system in claim 1 further comprising the wireless network operating in TDD mode operates in same spectrum as the FDD uplink.

3. The system in claim 1 further comprising the wireless network operating in TDD mode operates in same spectrum as the FDD downlink.

4. A first wireless network operating in FDD mode,

a second wireless network operating in FDD mode wherein

both wireless networks concurrently operate in the same spectrum.

5. The system in claim 4 further comprising the uplink of the first wireless network concurrently operates in the same spectrum of the downlink of the second wireless network.