Multi-connection, non-simultaneous frequency diversity in radio communication systems

• US 7,586,862 B2
• Filed: 08/27/2007
• Issued: 09/08/2009
• Est. Priority Date: 07/19/2004
• Status: Active Grant

• Current Assignee: Aviat U.S., Inc. (Aviat Networks Incorporated)
• Original Assignee: PureWave Networks
• Inventors: Leabman, Michael
• Primary Examiner(s): NGUYEN, SIMON
• Application Number:
  US11/892,743
• Publication Number:
  US 20070293165A1
• Time in Patent Office: 743 Days
• Field of Search: 455/101, 455/562.1, 375/135, 375/146, 375/299, 370/312, 370/314, 370/319, 370328-330, 370336-338, 370343-345, 370/442
• US Class Current: 370/310
• CPC Class Codes: H04B 7/0667 of delayed versions of same signal using space-time coding H04L1/0618
• CPC Class Codes: H04B 7/068 using space frequency diversity space-frequency coding H04L1/0606
• CPC Class Codes: H04B 7/12 Frequency diversity
• CPC Class Codes: H04L 27/2602 Signal structure

Abstract

A radio communication system includes a remote device radio, and a base station radio operable to communicate with the remote device radio at a first channel and at a second channel using non-simultaneous frequency diversity. The base station is operable to communicate with a device other than the remote device at the second channel while the remote device radio and the base station radio are communicating at the first channel. A radio using non-simultaneous frequency diversity includes an antenna, a radio frequency module coupled to the antenna such that the radio frequency module is operable to transmit or receive radio frequency signals at a first channel and signals at a second channel using the antenna, and a baseband module coupled to the radio frequency module. The baseband module operable to transmit or receive signals through the radio frequency module, such that signals transmitted or received by the radio employ non-simultaneous frequency diversity using the first channel and the second channel. Additional devices are operable to use the second channel while the radio is transmitting or receiving radio frequency signals at the first channel.

Claims

1. A method for transmitting information using non-simultaneous frequency diversity comprising:

identifying information to be transmitted to a first device;

transmitting the identified information to the first device on a first wideband channel while simultaneously communicating with a second device on a second wideband channel; and

after a predetermined amount of time, transmitting the identified information on the second channel.

2. The method of claim 1 wherein identifying information to be transmitted includes identifying a block to be transmitted from a set of information to be transmitted.

3. The method of claim 2 wherein the block includes no more than the maximum amount of information that can be transmitted at one time.

4. The method of claim 3 where the size of the block is based on the number of orthogonal frequency division multiplexing (OFDM) tones.

5. The method of claim 1 wherein transmitting the identified information to the first device on a first channel includes mixing an intermediate frequency signal with the output from a local oscillator to convert the intermediate frequency signal to the transmission frequency of the first channel.

6. The method of claim 5 wherein transmitting the identified information at a second frequency includes mixing an intermediate frequency signal with the output from a local oscillator to convert the intermediate frequency signal to the transmission frequency of the second channel.