IP Library Granted Patent US 8,553,603
Granted Patent B2
US 8,553,603 · App. 13/156,823 · Granted Oct 8, 2013

Client bridge between wired and wireless communication networks

Inventor: Ramesh V. Sekhar (San Jose, CA)
Assignee: Symbol Technologies, Inc.
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Quick Facts
Patent No.
US 8,553,603
App. No.
13/156,823
Filed
Jun 9, 2011
Granted
Oct 8, 2013
Kind
B2
Art Unit
2476
USPC
370/311
Abstract

A method and client bridge for bridging clients between a wired and wireless communication network includes a radio transceiver with a register and a controller for indicating to the wireless network that all wired client devices of the wired network are in Power Save Polling (PSP) mode, selecting the next wired client to be indicated as being in Continuously Awake Mode (CAM) mode, storing a Media Access Control (MAC) address of that selected client in the register, indicating to the wireless network that the selected client is in CAM mode, receiving any packets from the wireless network, which are acknowledged using the register, indicating to the wireless network that the selected client is back in PSP mode, and repeating these operations until all wired client communications are serviced.

Claims (29)

1. A client bridge between a wired and wireless communication network, comprising:

a radio transceiver;

a hardware register of the radio transceiver; and

a controller coupled to the radio transceiver, wherein the controller is operable to direct the radio transceiver to indicate to the wireless communication network that all wired client devices of the wired communication network are in Power Save Polling (PSP) mode, select the next wired client to be indicated as being in Continuously Awake Mode (CAM) mode, store a Media Access Control (MAC) address of only that next wired client in the register, direct the radio transceiver to indicate to the wireless communication network that the next wired client is in CAM mode, wherein the radio transceiver is operable to receive any packets from the wireless communication network addressed to the next wired client, and acknowledge the received packets using an acknowledgement generated in the register, and wherein the controller is also operable to direct the radio transceiver to indicate to the wireless communication network that the next wired client is back in PSP mode, and repeat these operations until all wired client communications are serviced.

2. The client bridge of claim 1 , wherein the wired client devices require simultaneous communication with the wireless communication network.

3. The client bridge of claim 1 , further comprising a scheduler having pre-defined scheduling scheme in use by the client bridge, wherein the controller will select the next wired client device based on the scheduling scheme.

4. The client bridge of claim 1 , wherein the client bridge uses the MAC address of the selected next wired client device for communication with the wireless communication network instead of its own.

5. The client bridge of claim 4 , wherein the client bridge associates with the wireless communication network as a wireless device using the MAC address of the selected next wired client device.

6. The client bridge of claim 1 , wherein the next wired client device and wireless communication network exchange data packets through the client bridge that waits a sufficient amount of time to complete the exchange of data packets.

7. The client bridge of claim 6 , wherein the exchange operation of the client bridge includes packets buffered in a buffer on behalf of that selected next wired client for the wireless communication network and packets buffered by an access point of the wireless communication network for that selected next wired client device.

8. A client bridge between a wired and wireless communication network, comprising:

a radio transceiver;

a hardware register of the radio transceiver; and

a controller coupled to the radio transceiver, wherein the controller is operable to direct the radio transceiver to indicate to the wireless communication network that all wired client devices of the wired communication network requiring simultaneous communication with the wireless communication network are in Power Save Polling (PSP) mode, select the next wired client to be in Continuously Awake Mode (CAM) mode, store the Media Access Control (MAC) address of only that next wired client in the register, direct the radio transceiver to indicate to the wireless communication network that the next wired client is in CAM mode, wherein the radio transceiver is operable to receive any packets from the wireless communication network addressed to the next wired client, acknowledge the received packets using an acknowledgement generated in the register, exchange packets between the next wired client device and an access point of the wireless communication network, including any packets buffered in the buffer ( 108 ) on behalf of that next wired client and any packets buffered by the access point of the wireless communication network, and wherein the controller is also operable to direct the radio transceiver to indicate to the wireless communication network that the next wired client is back in PSP mode, and repeat these operations until all wired client communications are serviced.

9. A method for bridging clients between a wired and wireless communication network, the method comprising the steps of:

indicating to a wireless communication network that all wired client devices are in Power Save Polling (PSP) mode;

selecting the next wired client to be indicated to the wireless communication network as being in Continuously Awake Mode (CAM) mode;

storing the Media Access Control (MAC) address of only that next wired client in a radio hardware register of the client bridge;

indicating to the wireless communication network that that next wired client is in CAM mode;

receiving any packets from the wireless communication network having the MAC address of the selected next wired client device;

acknowledging those received packets using an acknowledgement generated in by the radio hardware register to the wireless communication network;

indicating to the wireless communication network that the next wired client is now in PSP mode; and

repeating the above steps until all wired client communications are serviced.

10. The method of claim 9 , wherein the wired client devices require simultaneous communication with the wireless communication network.

11. The method of claim 9 , wherein selecting includes selecting based on a pre-defined scheduling scheme in use by the client bridge.

12. The method of claim 9 , wherein selecting includes the client bridge using the MAC address of the selected next wired client device for communication with the wireless communication network instead of its own.

13. The method of claim 9 , wherein the step of indicating to the wireless communication network that that next wired client is in CAM mode includes the client bridge associating with the wireless communication network as a wireless device having the MAC address of that selected next wired client device.

14. The method of claim 9 , wherein the acknowledging step includes exchanging packets between the selected next wired client device and the wireless communication network, including any packets buffered in the access point for the next wired client device and any packets buffered in the client bridge buffer for delivery to the wireless communication network.

15. The method of claim 14 , wherein exchanging includes waiting a sufficient amount of time to complete the exchange of data packets.

Assignments (14)
RELEASE OF PATENT AND TRADEMARK SECURITY INTEREST AT REEL/FRAME NO. 46050/0546 Recorded Jul 30, 2026
From: BANK OF MONTREAL, AS AGENT
To: EXTREME NETWORKS, INC.
Reel/Frame 076081/0088 →
SECURITY INTEREST Recorded Jul 29, 2026
From: EXTREME NETWORKS, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 076078/0590 →
AMENDED SECURITY AGREEMENT Recorded Aug 18, 2023
From: EXTREME NETWORKS, INC.; AEROHIVE NETWORKS, INC.
To: BANK OF MONTREAL
Reel/Frame 064782/0971 →
RELEASE OF SECURITY INTEREST Recorded May 1, 2018
From: SILICON VALLEY BANK
To: EXTREME NETWORKS, INC.
Reel/Frame 046051/0775 →
SECURITY INTEREST Recorded May 1, 2018
From: EXTREME NETWORKS, INC.
To: BANK OF MONTREAL
Reel/Frame 046050/0546 →
THIRD AMENDED AND RESTATED PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Oct 31, 2017
From: EXTREME NETWORKS, INC.
To: SILICON VALLEY BANK
Reel/Frame 044639/0300 →
SECOND AMENDED AND RESTATED PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Jul 14, 2017
From: EXTREME NETWORKS, INC.
To: SILICON VALLEY BANK
Reel/Frame 043200/0614 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2016
From: SYMBOL TECHNOLOGIES, LLC
To: EXTREME NETWORKS, INC.
Reel/Frame 040579/0410 →
AMENDED AND RESTATED PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Oct 31, 2016
From: EXTREME NETWORKS, INC.
To: SILICON VALLEY BANK
Reel/Frame 040521/0762 →
RELEASE OF SECURITY INTEREST Recorded Aug 17, 2015
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 036371/0738 →
CHANGE OF NAME Recorded Jul 8, 2015
From: SYMBOL TECHNOLOGIES, INC.
To: SYMBOL TECHNOLOGIES, LLC
Reel/Frame 036083/0640 →
SECURITY AGREEMENT Recorded Oct 31, 2014
From: ZIH CORP.; LASER BAND, LLC; ZEBRA ENTERPRISE SOLUTIONS CORP.; SYMBOL TECHNOLOGIES, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC. AS THE COLLATERAL AGENT
Reel/Frame 034114/0270 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ADDRESS OF SYMBOL TECHNOLOGIES, INC. PREVIOUSLY RECORDED ON REEL 026418 FRAME 0465. ASSIGNOR(S) HEREBY CONFIRMS THE ADDRESS OF SYMBOL TECHNOLOGIES, INC. SHOULD READ ONE MOTOROLA PLAZA, HOLTSVILLE, NY 11742. Recorded Sep 9, 2013
From: SEKHAR, RAMESH V.
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 031189/0433 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 9, 2011
From: SEKHAR, RAMESH V.
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 026418/0465 →
Continuity (1)
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