Home wireless router VoIP bandwidth management

• US 7,809,375 B2
• Filed: 05/14/2004
• Issued: 10/05/2010
• Est. Priority Date: 05/14/2004
• Status: Expired due to Fees

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Thermond, Jeffrey L.
• Primary Examiner(s): SING, SIMON P
• Application Number:
  US10/845,950
• Publication Number:
  US 20050265323A1
• Time in Patent Office: 2,335 Days
• Field of Search: 370/463, 370/401, 370/466, 370352-356, 455436-444
• US Class Current: 455/442
• CPC Class Codes: H04L 65/1026 at the edge
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 36/0022 for transferring data sessions between adjacent core network technologies
• CPC Class Codes: H04W 36/00224 between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

A home wireless router establishes a Wireless Local Area Network (WLAN) that supports wireless communications within a WLAN service area. The home wireless router further establishes broadband communications via a broadband connection with a VoIP service accumulator. The home wireless router services a plurality of wireless terminals within the WLAN service area, including at least one Voice over Internet Protocol (VoIP) wireless terminal. The home wireless router determines that a VoIP wireless terminal desires VoIP call servicing. The home wireless router sends a bandwidth reservation request to the VoIP service accumulator to reserve capacity on the broadband connection for servicing of the VoIP call. The home wireless router then receives a bandwidth reservation response from the VoIP service accumulator to confirm reservation of capacity on the broadband connection for servicing of the VoIP call. The home wireless router then services the VoIP call for the VoIP wireless terminal via the WLAN and the broadband connection.

Claims

1. A method for operating a home wireless router comprising, the home wireless router:

establishing a Wireless Local Area Network (WLAN) that supports wireless communications within a WLAN service area;

establishing broadband communications via a broadband connection with a VoIP service accumulator;

servicing a plurality of wireless terminals within the WLAN service area, the plurality of wireless terminals including a Voice over Internet Protocol (VoIP) wireless terminal, wherein the VoIP wireless terminal is also capable of communicating through a cellular network;

determining that the VoIP wireless terminal, which is being serviced by a cellular network, has roamed into the WLAN service area and desires VoIP call servicing of ongoing communication via the WLAN;

sending a bandwidth reservation request to the VoIP service accumulator to reserve capacity on the broadband connection for servicing of a VoIP call;

receiving a bandwidth reservation response from the VoIP service accumulator to confirm reservation of capacity on the broadband connection for servicing of the VoIP call; and

servicing the VoIP call via the WLAN and the broadband connection only when bandwidth capacity is reserved, by having the VoIP service accumulator effect transfer of servicing of the VoIP wireless terminal from the cellular network to the WLAN for transfer of the ongoing communication from the cellular network to the WLAN via the broadband connection.

2. The method of claim 1, wherein:

the broadband connection is serviced by a cable modem network; and

the VoIP service accumulator is an element of the cable modem network.

3. The method of claim 1, wherein the broadband connection is wireless and is selected from the group consisting of a cellular network connection, a microwave connection, and a fixed wireless connection.

4. The method of claim 1, wherein the broadband connection is wired and is selected from the group consisting of at least a DSL connection, a DSL2 connection, an ADSL connection, and an ADSL2 connection.

5. The method of claim 1, wherein the bandwidth reservation request conforms to the Resource Reservation Protocol (RSVP).

6. The method of claim 5, wherein servicing the VoIP call for the VoIP wireless terminal via the broadband connection proceeds according to the Real-Time Transport Protocol (RTP).

7. The method of claim 1, further comprising limiting access to the WLAN in order to adequately service the VoIP call.

8. The method of claim 1, further comprising:

terminating a WLAN encryption scheme serviced by the VoIP wireless terminal; and

servicing the VoIP call via the broadband connection using a broadband encryption scheme.

9. A home wireless router comprising:

a Wireless Local Area Network (WLAN) interface;

a broadband interface; and

a processing unit communicatively coupled to the WLAN interface and to the broadband interface, wherein the processing unit is operable to;

direct the WLAN interface to service a plurality of wireless terminals within a WLAN service area, the plurality of wireless terminals including a Voice over Internet Protocol (VoIP) wireless terminal, wherein the VoIP wireless terminal is also capable of communicating through a cellular network;

direct the broadband interface to establish broadband communications with a VoIP service accumulator via a broadband connection;

determine that the VoIP wireless terminal, which is being serviced by a cellular network, has roamed into the WLAN service area and desires VoIP call servicing of ongoing communication via the WLAN;

send a bandwidth reservation request to the VoIP service accumulator via the broadband interface to reserve capacity on the broadband connection to service the VoIP call;

receive a bandwidth reservation response from the VoIP service accumulator via the broadband interface to confirm reservation of capacity on the broadband connection to service a VoIP call; and

direct the WLAN interface and the broadband interface to service the VoIP call via the WLAN and the broadband connection when bandwidth capacity is reserved, by having the VoIP service accumulator effect transfer of servicing of the ongoing communication of the VoIP wireless terminal from the cellular network to the WLAN via the broadband connection.

10. The home wireless router of claim 9, wherein:

the broadband connection is a cable modem network connection; and

the VoIP service accumulator is an element of the cable modem network.

11. The home wireless router of claim 9, wherein the broadband connection is wireless and is selected from the group consisting of a cellular network connection, a microwave connection, and a fixed wireless connection.

12. The home wireless router of claim 9, wherein the broadband connection is wired and is selected from the group consisting of at least a DSL connection, a DSL2 connection, an ADSL connection, and an ADSL2 connection.

13. The home wireless router of claim 9, wherein the bandwidth reservation request conforms to the Resource Reservation Protocol (RSVP).

14. The home wireless router of claim 13, wherein servicing the VoIP call for the VoIP wireless terminal proceeds according to the Real-Time Transport Protocol (RTP).

15. The home wireless router of claim 9, wherein the processing unit is operable to direct the WLAN interface to limit access to the WLAN in order to adequately service the VoIP call.

16. The home wireless router of claim 9, wherein the processing unit is further operable to:

terminate a WLAN encryption scheme serviced by the VoIP wireless terminal; and

cause at least one component of the home wireless router to service the VoIP call via the broadband connection using a broadband encryption scheme.