Cable modem with wireless voice-over-IP phone and methods for use therewith

• US 20080123568A1
• Filed: 09/26/2006
• Published: 05/29/2008
• Est. Priority Date: 09/26/2006
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Rofougaran, Ahmadreza
• Application Number:
  US11/527,136
• Publication Number:
  US 20080123568A1
• Time in Patent Office: Days
• US Class Current: 370/279
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 65/1026 at the edge
• CPC Class Codes: H04L 65/1036 at the edge

Abstract

A cable modem includes a cable transceiver that provides bidirectional broadband access to a wide area network in accordance with a first wired communication protocol. A radio frequency (RF) transceiver provides bidirectional communication with a wireless telephone over a radio frequency link. A memory module stores a voice over internet protocol (VoIP) application. A processing module executes the VoIP application to provide VoIP service to the wireless telephone via the cable network.

Claims

1. A cable modem comprising:

a cable transceiver, coupled to a cable network, that provides bidirectional broadband access to a wide area network in accordance with a first wired communication protocol;

a radio frequency (RF) transceiver, that provides bidirectional communication with a wireless telephone over a radio frequency link at a selected carrier frequency;

a programmable antenna, coupled to the RF transceiver, that is dynamically tuned to the selected carrier frequency to transmit and receive an RF signal over the radio frequency link.

a memory module that stores a voice over internet protocol (VoIP) application; and

a processing module, coupled to the cable transceiver, the RF transceiver and the memory module, that executes the VoIP application to provide VoIP service to the wireless telephone via the cable network.

2. The cable modem of claim 1 wherein the wireless telephone is a VoIP telephone set that communicates exclusively over the radio frequency link.

3. The cable modem of claim 1 wherein the radio frequency link complies with a local area network protocol and the wireless telephone is a multi-band telephone that can selectively communicate over the radio frequency link and an alternative wireless telephony network.

4. The cable modem of claim 3 wherein the multi-band telephone that can selectively access data services of the wide area network via the cable modem and the radio frequency link.

5. The cable modem of claim 1 further comprising:

a wired transceiver, coupled to the cable transceiver, that provides bidirectional communication with a wired device in accordance with a second wired communication protocol.

6. The cable modem of claim 1 wherein the programmable antenna includes:

a fixed antenna element;

a programmable antenna element, coupled to the fixed antenna element, that is tunable to the selected carrier frequency in response to at least one antenna control signal; and

a control module, coupled to the programmable antenna element, that generates the at least one antenna control signal in response to the selected carrier frequency.

7. The cable modem of claim 6 wherein the programmable antenna further includes:

a programmable impedance matching network, coupled to the programmable antenna and the RF transmitter, that includes a plurality of adjustable reactive network elements that are tunable in response in response to a corresponding plurality of matching network control signals, to provide a substantially constant load impedance;

wherein the control module is coupled to the programmable impedance matching network, and generates the plurality of matching network control signals in response to the selected carrier frequency.

8. The cable modem of claim 1 wherein the programmable antenna includes one of a multi-input multi-output antenna system, a phased array antenna system and a polarization diversity antenna system.

9. The cable modem of claim 1 wherein the RF transceiver includes a frequency hop module for selecting a sequence of selected carrier frequencies and the programmable antenna dynamically tunes to each selected carrier frequency of the sequence of selected carrier frequencies.

19. The cable modem of claim 1 wherein the RF transceiver includes a frequency hop module for selecting a sequence of selected carrier frequencies and the programmable antenna dynamically tunes to each selected carrier frequency of the sequence of selected carrier frequencies.

10. A cable modem comprising:

a cable transceiver, coupled to a cable network, that provides bidirectional broadband access to a wide area network in accordance with a first wired communication protocol;

a radio frequency (RF) transceiver, that provides bidirectional communication with a wireless telephone over a radio frequency link;

a memory module that stores a voice over internet protocol (VoIP) application; and

a processing module, coupled to the cable transceiver, the RF transceiver and the memory module, that executes the VoIP application to provide VoIP service to the wireless telephone via the cable network.

11. The cable modem of claim 10 wherein the wireless telephone is a VoIP telephone set that communicates exclusively over the radio frequency link.

12. The cable modem of claim 10 wherein the radio frequency link complies with a local area network protocol and the wireless telephone is a multi-band telephone that can selectively communicate over the radio frequency link and an alternative wireless telephony network.

13. The cable modem of claim 12 wherein the multi-band telephone that can selectively access data services of the wide area network via the cable modem and the radio frequency link.

14. The cable modem of claim 10 further comprising:

a wired transceiver, coupled to the cable transceiver, that provides bidirectional communication with a wired device in accordance with a second wired communication protocol.

15. The cable modem of claim 10 further comprising:

a programmable antenna, coupled to the RF transceiver, that is dynamically tuned to a selected carrier frequency to transmit and receive an RF signal over the radio frequency link;

wherein the RF transceiver provides bidirectional communication with the wireless telephone over the radio frequency link at the selected carrier frequency.

16. The cable modem of claim 15 wherein the programmable antenna includes:

a fixed antenna element;

a programmable antenna element, coupled to the fixed antenna element, that is tunable to the selected carrier frequency in response to at least one antenna control signal; and

a control module, coupled to the programmable antenna element, that generates the at least one antenna control signal in response to the selected carrier frequency.

17. The cable modem of claim 16 wherein the programmable antenna further includes:

a programmable impedance matching network, coupled to the programmable antenna and the RF transmitter, that includes a plurality of adjustable reactive network elements that are tunable in response in response to a corresponding plurality of matching network control signals, to provide a substantially constant load impedance;

wherein the control module is coupled to the programmable impedance matching network, and generates the plurality of matching network control signals in response to the selected carrier frequency.

18. The cable modem of claim 15 wherein the programmable antenna includes one of a multi-input multi-output antenna system, a phased array antenna system and a polarization diversity antenna system.

20. A method comprising:

providing bidirectional broadband access to a wide area network in accordance with a first wired communication protocol;

providing bidirectional communication with a wireless telephone over a radio frequency link; and

executing a VoIP application within a cable modem to provide VoIP service to the wireless telephone via the cable network.

21. The method of claim 20 wherein the wireless telephone is a VoIP telephone set that communicates exclusively over the radio frequency link.

22. The method of claim 20 wherein the radio frequency link complies with a local area network protocol and the wireless telephone is a multi-band telephone that can selectively communicate over the radio frequency link and an alternative wireless telephony network.

23. The method of claim 22 wherein the multi-band telephone can selectively access data services of the wide area network via the cable modem and the radio frequency link.

24. The method of claim 20 further comprising:

dynamically tuning a programmable antenna to the selected carrier frequency to transmit and receive an RF signal over the radio frequency link.