IP Library Granted Patent US 8,699,474
Granted Patent B2
US 8,699,474 · App. 11/622,161 · Granted Apr 15, 2014

System with a cell controller adapted to perform a management function

Inventor: Robert Beach (Los Altos, CA)
Assignee: Symbol Technologies, Inc.
H04W84/12
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Quick Facts
Patent No.
US 8,699,474
App. No.
11/622,161
Granted
Apr 15, 2014
Kind
B2
Abstract

A wireless local area network is provided with simplified RF ports which are configured to provide lower level media access control functions. Higher level media access control functions and management functions are provided with a system having a cell controller, which may service one or more RF ports. Mobile units can also be configured with the higher level media access control functions being performed in a host processor.

Claims (56)

1. A wireless data communications system operating according to a wireless communication standard protocol, comprising:

a first housing;

a second housing physically separate from said first housing;

a RF receiver housed in said first housing, said RF receiver for receiving a first RF signal;

a first processor housed in said first housing and receptive of said first signal and adapted to perform a first plurality of functions of the wireless communication standard protocol to produce a first data signal from said first RF signal; and

a second processor housed in said second housing and receptive of the first data signal produced by said first processor and adapted to perform a second plurality of functions of the wireless communication standard protocol, different from said first plurality of functions, during an operational mode for said first data signal, and adapted to perform a management function of said wireless data communications system, wherein said first plurality of functions and said second plurality of functions each include at least one media access control (MAC) function

wherein the first processor is communicatively coupled to the second processor via a wired network connection, said first plurality of functions include at least one time-critical MAC function, and said second plurality of functions include at least one non-time-critical MAC function.

2. The wireless data communications system of claim 1 , wherein said wireless communication standard protocol is an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard protocol.

3. The wireless data communications system of claim 1 , wherein said management function is a bandwidth management function.

4. The wireless data communications system of claim 1 , wherein said management function alters bandwidth based at least partially on a type of device that originates said signal.

5. The wireless data communications system of claim 1 , wherein said management function at least partially accounts for changing load conditions of said wireless communication network.

6. The wireless data communications system of claim 1 , wherein said management function alters a frequency of said signal.

7. The wireless data communications system of claim 1 , wherein said management function alters a power of said signal.

8. The wireless data communications system of claim 1 , wherein said management function alters a data rate of said signal.

9. The wireless data communications system of claim 1 , wherein said management function is a compression function.

10. The wireless data communications system of claim 1 , wherein said management function monitors software versions of mobile units within said wireless communication network.

11. The wireless data communications system of claim 1 , wherein said management function detects interference and adjusts transmit power levels of said RF port.

12. The wireless data communications system of claim 1 , wherein said management function is a security function.

13. The wireless data communications system of claim 1 , wherein said management function is a soft-roaming function.

14. A wireless data communications system operating according to a wireless communication standard protocol, comprising:

first housing means;

second housing means physically separate from said first housing means;

receiving means housed in said first housing means for receiving a first RF signal;

first processing means housed in said first housing means and receptive of said first signal to perform a first plurality of functions of the wireless communication standard protocol to produce a first data signal from said first RF signal; and

second processing means housed in said second housing means and receptive of said first data signal produced by said first processing means to perform a second plurality of functions of the wireless communication standard protocol, different than said first plurality of functions during an operational mode, for said first data signal and to perform a management function of said wireless data communications system, wherein said first plurality of functions and said second plurality of functions each include at least one media access control (MAC) function;

wherein the first processing means is communicatively coupled to the second processing means via a wired network connection, said first plurality of functions include at least one time-critical MAC function, and said second plurality of functions include at least one non-time-critical MAC function.

15. The wireless data communications system of claim 14 , wherein said wireless communication standard protocol is an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard protocol.

16. The wireless data communications system of claim 14 , wherein said management function is a bandwidth management function.

17. The wireless data communications system of claim 14 , wherein said management function alters bandwidth based at least partially on a type of device that originates said signal.

18. The wireless data communications system of claim 14 , wherein said management function at least partially accounts for changing load conditions of said wireless communication network.

19. The wireless data communications system of claim 14 , wherein said management function alters a frequency of said signal.

20. The wireless data communications system of claim 14 , wherein said management function alters a power of said signal.

21. The wireless data communications system of claim 14 , wherein said management function alters a data rate of said signal.

22. The wireless data communications system of claim 14 , wherein said management function is a compression function.

23. The wireless data communications system of claim 14 , wherein said management function monitors software versions of mobile units within said wireless communication network.

24. The wireless data communications system of claim 14 , wherein said management function detects interference and adjusts transmit power levels of said RF port.

25. The wireless data communications system of claim 14 , wherein said management function is a security function.

26. The wireless data communications system of claim 14 , wherein said management function is a soft-roaming function.

27. A method of operating a wireless data communications system operating according to a wireless communication standard protocol, comprising:

receiving a first RF signal with a RF port housed in a first housing;

performing a first plurality of functions of the wireless communication standard protocol with said RF port to produce a first data signal from said first RF signal;

receiving said first data signal with a cell controller housed in a second housing physically separate from the first housing and coupled to the first housing via a wired network connection;

performing a second plurality of functions of the wireless communication standard protocol with the cell controller, different than said first plurality of functions during an operational mode, for said first data signal, wherein said first plurality of functions include at least one time-critical media access control (MAC) function, and said second plurality of functions include at least one non-time-critical MAC function; and

performing a management function of the wireless data communications system with the cell controller.

28. The method of claim 27 , wherein said wireless communication standard protocol is an Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard protocol.

29. The method of claim 27 , wherein said management function is a bandwidth management function.

30. The method of claim 27 , wherein said management function alters bandwidth based at least partially on a type of device that originates said signal.

31. The method of claim 27 , wherein said management function at least partially accounts for changing load conditions of said wireless communication network.

32. The method of claim 27 , wherein said management function alters a frequency of said signal.

33. The method of claim 27 , wherein said management function alters a power of said signal.

34. The method of claim 27 , wherein said management function alters a data rate of said signal.

35. The method of claim 27 , wherein said management function is a compression function.

36. The method of claim 27 , wherein said management function monitors software versions of mobile units within said wireless communication network.

37. The method of claim 27 , wherein said management function detects interference and adjusts transmit power levels of said RF port.

38. The method of claim 27 , wherein said management function is a security function.

39. The method of claim 27 , wherein said management function is a soft-roaming function.

Assignments (13)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 24, 2019
From: EXTREME NETWORKS, INC.
To: SYMBOL TECHNOLOGIES, LLC
Reel/Frame 049566/0536 →
RELEASE OF SECURITY INTEREST Recorded Jun 11, 2019
From: BANK OF MONTREAL
To: EXTREME NETWORKS, INC.
Reel/Frame 049436/0781 →
SECURITY INTEREST Recorded May 1, 2018
From: EXTREME NETWORKS, INC.
To: BANK OF MONTREAL
Reel/Frame 046050/0546 →
RELEASE OF SECURITY INTEREST Recorded May 1, 2018
From: SILICON VALLEY BANK
To: EXTREME NETWORKS, INC.
Reel/Frame 046051/0775 →
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 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2011
From: BEACH, ROBERT
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 026270/0732 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 15, 2007
From: BEACH, ROBERT
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 018758/0088 →
Continuity (4)
Continuation 10037225 · Oct 25, 2001
Continuation In Part 09780741 · Feb 9, 2001
Continuation In Part 09528697 · Mar 17, 2000
Related Publication 20070177561A1 · Aug 2, 2007