IP Library Granted Patent US 7,634,275
Granted Patent B2
US 7,634,275 · App. 10/609,667 · Granted Dec 15, 2009

Method of accommodating periodic interfering signals in a wireless network

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Quick Facts
Patent No.
US 7,634,275
App. No.
10/609,667
Granted
Dec 15, 2009
Kind
B2
Abstract

A method is provided for accommodating periodic interfering signals in a wireless network. In this method, a network scans a transmission medium to locate any interfering signals. If it finds interfering signals, the scan determines their period, and the network alters the period of its superframes such that: either the period of the superframes is equal to the period of the interfering signals; the period of the superframes is an integer multiple of the period of the interfering signals; or the period of the interfering signals is an integer multiple of the period of the superframes. The network then alters the position of the superframes relative to the position of the interfering signals to arrange things such that no portion of the interfering signal interferes with a superframe beacon, such that that a maximum amount of contiguous channel time is provided in each superframe, or both.

Claims (36)

1. A method of accommodating regularly intermittent interfering signals in a wireless network, comprising:

scanning in a transmission medium at a coordinator device for the regularly intermittent interfering signals;

measuring a current repetition period of the regularly intermittent interfering signals; and

altering a superframe period in the wireless network such that the superframe period is equal to the current repetition period of the regularly intermittent interfering signals,

wherein the regularly intermittent interfering signals are present in the transmission medium during a series of first regularly-repeating time durations, and are absent from the transmission medium during a series of second regularly-repeating time durations, and

wherein the repetition period indicates how frequently the first regularly-repeating time durations occur.

2. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 1 , further comprising altering a superframe position relative to an interfering signal position.

3. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 2 , wherein the step of altering the superframe position relative to the interfering signal position is performed such that no portion of the regularly intermittent interfering signals interfere with any superframe beacon.

4. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 2 , wherein the step of altering the superframe position relative to the interfering signal position is performed such that a maximum amount of contiguous channel time that is not interfered with by the regularly intermittent interfering signals is provided in each superframe.

5. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 1 , wherein the regularly intermittent interfering signals are radar signals.

6. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 1 , further comprising assigning to a network coordinator all channel time in each superframe that is interfered with by the regularly intermittent interfering signals.

7. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 1 , wherein the wireless network is an ultrawide bandwidth network.

8. A method of accommodating regularly intermittent interfering signals in a wireless network, comprising:

scanning in a transmission medium at a coordinator device for the regularly intermittent interfering signals;

measuring a current repetition period of the regularly intermittent interfering signals; and

altering a superframe period in the wireless network such that the superframe period is equal to n times the current repetition period of the regularly intermittent interfering signals, where n is an integer greater than 1,

wherein the regularly intermittent interfering signals are present in the transmission medium during a series of first regularly-repeating time durations, and are absent from the transmission medium during a series of second regularly-repeating time durations, and

wherein the repetition period indicates how frequently the first regularly-repeating time durations occur.

9. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 8 , further comprising: altering a superframe position relative to an interfering signal position.

10. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 9 , wherein the step of altering the superframe position relative to the interfering signal position is performed such that no portion of the regularly intermittent interfering signals interfere with any superframe beacon.

11. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 9 , wherein the step of altering the superframe position relative to the interfering signal position is performed such that a maximum amount of contiguous channel time that is not interfered with by the regularly intermittent interfering signals is provided in each superframe.

12. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 8 , wherein the regularly intermittent interfering signals are radar signals.

13. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 8 , further comprising assigning to a network coordinator all channel time in each superframe that is interfered with by the regularly intermittent interfering signals.

14. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 8 , wherein the wireless network is an ultrawide bandwidth network.

15. A method of accommodating regularly intermittent interfering signals in a wireless network, comprising:

scanning in a transmission medium for the regularly intermittent interfering signals;

measuring a current repetition period of the regularly intermittent interfering signals; and

altering a superframe period in the wireless network such that the superframe period is equal to 1/n times the current repetition period of the regularly intermittent interfering signals, where n is an integer greater than 1,

wherein the regularly intermittent interfering signals are present in the transmission medium during a series of first regularly-repeating time durations, and are absent from the transmission medium during a series of second regularly-repeating time durations, and

wherein the repetition period indicates how frequently the first regularly-repeating time durations occur.

16. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 15 , further comprising: altering a superframe position relative to an interfering signal position.

17. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 16 , wherein the step of altering the superframe position relative to an interfering signal position is performed such that no portion of the regularly intermittent interfering signals interfere with any superframe beacon.

18. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 16 , wherein the step of altering the superframe position relative to the interfering signal position is performed such that a maximum amount of contiguous channel time that is not interfered with by the regularly intermittent interfering signals is provided in each superframe.

19. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 15 , wherein the regularly intermittent interfering signals are radar signals.

20. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 15 , further comprising assigning to a network coordinator all channel time in each superframe that is interfered with by the regularly intermittent interfering signals.

21. The method of accommodating regularly intermittent interfering signals in a wireless network, as recited in claim 15 , wherein the wireless network is an ultrawide bandwidth network.

Assignments (21)
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 040925 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. Recorded Feb 17, 2020
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP, B.V. F/K/A FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 052917/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 040928 FRAME 0001. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. Recorded Jan 17, 2020
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 052915/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE APPLICATION 11759915 AND REPLACE IT WITH APPLICATION 11759935 PREVIOUSLY RECORDED ON REEL 037486 FRAME 0517. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS. Recorded Dec 10, 2019
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 053547/0421 →
CORRECTIVE ASSIGNMENT TO CORRECT THE TO CORRECT THE APPLICATION NO. FROM 13,883,290 TO 13,833,290 PREVIOUSLY RECORDED ON REEL 041703 FRAME 0536. ASSIGNOR(S) HEREBY CONFIRMS THE THE ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS.. Recorded Feb 20, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: SHENZHEN XINGUODU TECHNOLOGY CO., LTD.
Reel/Frame 048734/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE PATENTS 8108266 AND 8062324 AND REPLACE THEM WITH 6108266 AND 8060324 PREVIOUSLY RECORDED ON REEL 037518 FRAME 0292. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS. Recorded Feb 1, 2017
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 041703/0536 →
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP B.V.
Reel/Frame 040928/0001 →
RELEASE OF SECURITY INTEREST Recorded Sep 21, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: NXP, B.V., F/K/A FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 040925/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 4, 2016
From: FREESCALE SEMICONDUCTOR, INC.
To: NORTH STAR INNOVATIONS INC.
Reel/Frame 037694/0264 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 13, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037518/0292 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 12, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037486/0517 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037354/0225 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037356/0143 →
PATENT RELEASE Recorded Dec 21, 2015
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 037356/0553 →
SECURITY AGREEMENT Recorded Nov 6, 2013
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 031591/0266 →
SECURITY AGREEMENT Recorded Jun 18, 2013
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 030633/0424 →
SECURITY AGREEMENT Recorded May 13, 2010
From: FREESCALE SEMICONDUCTOR, INC.
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 024397/0001 →
SECURITY AGREEMENT Recorded Feb 2, 2007
From: FREESCALE SEMICONDUCTOR, INC.; FREESCALE ACQUISITION CORPORATION; FREESCALE ACQUISITION HOLDINGS CORP.; FREESCALE HOLDINGS (BERMUDA) III, LTD.
To: CITIBANK, N.A. AS COLLATERAL AGENT
Reel/Frame 018855/0129 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2005
From: MOTOROLA, INC.
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 015735/0156 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2004
From: MOTOROLA, INC
To: FREESCALE SEMICONDUCTOR, INC.
Reel/Frame 015360/0718 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2003
From: XTREMESPECTRUM, INC.
To: MOTOROLA, INC.
Reel/Frame 014815/0242 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 14, 2003
From: ODMAN, KNUT T.
To: XTREMESPECTRUM, INC.
Reel/Frame 014592/0787 →