Hybrid TDM/OFDM/CDM reverse link transmission

• US 20050111397A1
• Filed: 11/09/2004
• Published: 05/26/2005
• Est. Priority Date: 12/06/2002
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Bhushan, Naga, Attar, Rashid A.
• Granted Patent: US 8,179,833 B2
• Time in Patent Office: Days
• US Class Current: 370/319
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 52/06 TPC algorithms
• CPC Class Codes: H04W 52/12 Outer and inner loops
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/16 Deriving transmission power values from another channel
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A communication system includes a plurality of access terminals, and an access network. The access network schedules a transmission of data in a time interval from one of the access terminals. The access network selects a multiple access transmission mode from a plurality of multiple access transmission modes, and broadcasts the selected multiple access transmission mode to the access terminals. The selected mode may include a mode in which data is code-division-multiplexed during the time interval, and modes in which data is code-division-multiplexed during a first portion of the time interval, and data is either time-division-multiplexed or orthogonal-frequency-division-multiplexed during a second portion of the time interval.

Claims

1. An Access terminal (AT) comprising:

a processor; and

a mode select unit coupled to the processor, the mode select unit adapted to select a multiple access transmission mode from a plurality of multiple access transmission modes.