IP Library Granted Patent US 8,054,819
Granted Patent B2
US 8,054,819 · App. 11/951,498 · Granted Nov 8, 2011

System and method for setting a data rate in TDMA communications

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Quick Facts
Patent No.
US 8,054,819
App. No.
11/951,498
Granted
Nov 8, 2011
Kind
B2
Abstract

A mobile ad-hoc network includes a plurality of N mobile nodes and wireless communication links connecting the mobile nodes, which each include a communications device for transmitting and routing data packets wirelessly to other mobile nodes via the wireless communication links in accordance with a time division multiple access (TDMA) data transmission protocol using a TDMA epoch that is divided into a beacon interval, digital voice interval and digital data interval. The mobile nodes monitor channel conditions using the beacon, digital voice and digital data intervals and provide a network conductivity performance as valid receptions occur within mobile nodes. A data rate is calculated and set for other N−1 mobile nodes using monitored channel conditions for the beacon, digital voice and digital data intervals.

Claims (20)

1. A communications system, comprising:

a plurality of mobile nodes comprising an N number of nodes and forming a mobile ad-hoc network;

a plurality of wireless communications links connecting the mobile nodes together;

each mobile node comprising a communications device for transmitting and routing data packets wirelessly to other mobile nodes via the wireless communications links in accordance with a time division multiple access (TDMA) data transmission protocol using a TDMA epoch that is divided into a beacon interval, digital voice interval and digital data interval, wherein mobile nodes are operative for monitoring channel conditions using the beacon, digital voice and digital data intervals and providing from each mobile node a network connectivity performance as valid receptions occur within mobile nodes, wherein a mobile node is operative for setting a data rate for the other mobile nodes comprising an N−1 number of nodes using monitored channel conditions for the beacon, digital voice and digital data intervals, wherein a mobile node is operative for determining the signal-to-noise ratio (SNR), received signal strength indication (RSSI) and packet error rate (PER) for N−1 mobile nodes based on valid beacon, digital voice and digital data interval receptions, and further comprising a database containing TDMA waveform selections, wherein a mobile node is operative for selecting a TDMA waveform from the database based on the SNR, RSSI and a SNR variance.

2. A communications system, comprising:

a plurality of mobile nodes comprising an N number of nodes and forming a mobile ad-hoc network;

a plurality of wireless communications links connecting the mobile nodes together;

each mobile node comprising a communications device for transmitting and routing data packets wirelessly to other mobile nodes via the wireless communications links in accordance with a time division multiple access (TDMA) data transmission protocol using a TDMA epoch that is divided into a beacon interval, digital voice interval and digital data interval, wherein mobile nodes are operative for monitoring channel conditions using the beacon, digital voice and digital data intervals and providing from each mobile node a network connectivity performance as valid receptions occur within mobile nodes, wherein a mobile node is operative for setting a data rate for the other mobile nodes comprising an N−1 number of nodes using monitored channel conditions for the beacon, digital voice and digital data intervals, wherein a mobile node is operative for determining a signal-to-noise ratio (SNR), received signal strength indication (RSSI) and packet error rate (PER) for N−1 mobile nodes based on valid beacon, digital voice and digital data interval receptions, and maintaining a history of the SNR, RSSI and PER over an interval corresponding to X seconds for each respective N−1 node enhancing the history of the SNR, RSSI and PER using receptions of digital data intervals.

3. A mobile ad-hoc network (MANET), comprising:

a plurality of mobile nodes comprising an N number of nodes and operating together and communicating with each other via wireless communications links in a time division multiple access (TDMA) data transmission protocol using a TDMA epoch that is divided into a beacon interval, digital voice interval and digital data interval;

each mobile node comprising a wireless communications device configured to monitor channel conditions using the beacon, digital voice and digital data intervals and provide a network connectivity performance as valid receptions occur within mobile nodes and set a data rate at a mobile node using monitored channel conditions for the beacon, digital voice and digital data intervals, wherein a mobile node is operative for determining a signal-to-noise ratio (SNR), received signal strength indication (RSSI) and packet error rate (PER) for N−1 mobile nodes based on valid beacon, digital voice and digital data receptions, and further comprising a database containing TDMA waveform selections, wherein a mobile node is operative for selecting a TDMA waveform from the database based on the SNR, RSSI and a SNR variance.

4. A method for communicating, comprising:

forming a mobile ad-hoc network from a plurality of mobile nodes comprising an N number of nodes using a plurality of wireless communications links connecting the mobile nodes together;

transmitting and routing data packets wirelessly to other mobile nodes via the wireless communications links in a time division multiple access (TDMA) data transmission protocol using a TDMA epoch that is divided into a beacon interval, digital voice interval and digital data interval;

monitoring channel conditions at each mobile node using the beacon, digital voice and digital data intervals;

providing from each mobile node a network connectivity performance as valid beacon, digital voice and digital data receptions occur within mobile nodes;

setting a data rate at a mobile node for the other N−1 mobile nodes using monitored channel conditions from the beacon, digital voice and digital data intervals;

determining a signal-to-noise ratio (SNR), received signal strength indication (RSSI) and packet error rate (PER) for N−1 mobile nodes based on valid beacon, digital voice and digital data interval receptions;

maintaining a history of the SNR, RSSI and PER over an interval corresponding to X seconds for each respective N−1 node; and

improving the history of the SNR, RSSI and PER using receptions of digital data intervals.

Assignments (9)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE NAME PREVIOUSLY RECORDED ON REEL 053654 FRAME 0254. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST GRANTED PURSUANT TO THE PATENT SECURITY AGREEMENT PREVIOUSLY RECORDED. Recorded Nov 11, 2021
From: STARBOARD VALUE INTERMEDIATE FUND LP, AS COLLATERAL AGENT
To: STINGRAY IP SOLUTIONS LLC
Reel/Frame 058266/0599 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNOR NAME PREVIOUSLY RECORDED ON REEL 052853 FRAME 0153. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTEREST GRANTED PURSUANT TO THE PATENT SECURITY AGREEMENT PREVIOUSLY RECORDED. Recorded Nov 11, 2021
From: STINGRAY IP SOLUTIONS LLC
To: STARBOARD VALUE INTERMEDIATE FUND LP, AS COLLATERAL AGENT
Reel/Frame 058825/0107 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jul 8, 2020
From: STARBOARD VALUE INTERMEDIATE FUND LP
To: ACACIA RESEARCH GROUP LLC; AMERICAN VEHICULAR SCIENCES LLC; BONUTTI SKELETAL INNOVATIONS LLC; CELLULAR COMMUNICATIONS EQUIPMENT LLC; INNOVATIVE DISPLAY TECHNOLOGIES LLC; LIFEPORT SCIENCES LLC; LIMESTONE MEMORY SYSTEMS LLC; MOBILE ENHANCEMENT SOLUTIONS LLC; MONARCH NETWORKING SOLUTIONS LLC; NEXUS DISPLAY TECHNOLOGIES LLC; PARTHENON UNIFIED MEMORY ARCHITECTURE LLC; R2 SOLUTIONS LLC; SAINT LAWRENCE COMMUNICATIONS LLC; STINGRAY IP SOLUTIONS LLC; SUPER INTERCONNECT TECHNOLOGIES LLC; TELECONFERENCE SYSTEMS LLC; UNIFICATION TECHNOLOGIES LLC
Reel/Frame 053654/0254 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2020
From: ACACIA RESEARCH GROUP LLC
To: STINGRAY IP SOLUTIONS LLC
Reel/Frame 053326/0636 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2020
From: EAGLE TECHNOLOGIES, INC.; L3HARRIS TECHNOLOGIES, INC.; HARRIS GLOBAL COMMUNICATIONS, INC.
To: ACACIA RESEARCH GROUP LLC
Reel/Frame 053019/0876 →
PATENT SECURITY AGREEMENT Recorded Jun 5, 2020
From: ACACIA RESEARCH GROUP LLC; AMERICAN VEHICULAR SCIENCES LLC; BONUTTI SKELETAL INNOVATIONS LLC; CELLULAR COMMUNICATIONS EQUIPMENT LLC; INNOVATIVE DISPLAY TECHNOLOGIES LLC; LIFEPORT SCIENCES LLC; LIMESTONE MEMORY SYSTEMS LLC; MERTON ACQUISITION HOLDCO LLC; MOBILE ENHANCEMENT SOLUTIONS LLC; MONARCH NETWORKING SOLUTIONS LLC; NEXUS DISPLAY TECHNOLOGIES LLC; PARTHENON UNIFIED MEMORY ARCHITECTURE LLC; R2 SOLUTIONS LLC; SAINT LAWRENCE COMMUNICATIONS LLC; STINGRAY IP SOLUTIONS LLC; SUPER INTERCONNECT TECHNOLOGIES LLC; TELECONFERENCE SYSTEMS LLC; UNIFICATION TECHNOLOGIES LLC
To: STARBOARD VALUE INTERMEDIATE FUND LP, AS COLLATERAL AGENT
Reel/Frame 052853/0153 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 19, 2018
From: HARRIS CORPORATION
To: HARRIS SOLUTIONS NY, INC.
Reel/Frame 047600/0598 →
CHANGE OF NAME Recorded Nov 19, 2018
From: HARRIS SOLUTIONS NY, INC.
To: HARRIS GLOBAL COMMUNICATIONS, INC.
Reel/Frame 047598/0361 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2007
From: CHAMBERLAIN, MARK W.; CLARK, DAVID A.; SHAVER, JOSEPH; NIETO, JOHN W.
To: HARRIS CORPORATION
Reel/Frame 020205/0079 →