Motorola Corporation

Motorola Solutions, Inc.

Motorola Mobility LLC

S David Silk

Lawrence Marvin Ecklund

Stephen Leigh Kuffner

Bruce C Eastmond

Gregory J Buchwald

Rachid M Alameh

John M Belcea

Steven F Gillig

Ramy S Ayoub

Jeffrey D Bonta

Randy L Ekl

Stephen P Emeott

David P Gurney

Jeffrey A Dykstra

Mario Frank DeRango

Whay Chiou Lee

Robert J Corke

Mark R Braun

Michael S Johnson

Christopher G Ware

Richard Stanley Rachwalski

Mario F Derango

George R Economy

Mark S Hansen

Michael Allen Schuette

Donald L Linder

Michael L Johnson

John R Barr

Edward C Porrett

David A Hume

Ravishankar Ramamirtham

Lynn D Dann

A communications system and method for exchanging spectrum usage information through a drop box () includes one or more central stations () that defines a region of operation. A central drop box () is associated with the central station () for providing a database of spectrum usage information. Stations () using the communications system may submit information regarding spectrum usage to the central drop box () that affects the region of operation () for providing the most efficient and non-interfering uses of the frequency spectrum.

Communications system for exchanging spectrum sensing measurements through a drop box and method of using same

A method and apparatus for allocating spectrum within a wireless communication system is provided herein. During operation, a first base station will determine a location of a UE wishing to transmit. A database will be accessed containing wireless coverage area information for base stations with overlapping coverage with the first base station. Based on this information the first base station will determine if the UE is within an overlapping coverage area of multiple base stations. Spectrum will be assigned to the wireless equipment in a guard band, based at least in part on the determination that the UE is not within the overlapping coverage area.

Method and apparatus for allocating spectrum

A method and apparatus for operation of a node within a mobile ad hoc cognitive radio network is provided. The method includes sensing at least one assigned communications channel. Sensing at least one assigned communications channel includes measuring a value of at least one parameter corresponding to the communications channel. The method further includes comparing the measured value of the at least one parameter with a set of stored values of the at least one parameter to determine a change in the measured values. Finally a sleep mode of the node is activated for a time period, wherein the time period is determined using the change in the measured values.

Method and apparatus for operating a node within a mobile ad hoc cognitive radio network

A method, information processing system, and network that expands safety network coverage for first responder safety within a building environment. Activity of at least one independent network () is monitored. The independent network () includes at least a safety network. An emergency signal is received from the at least one independent network (). Communication between at least the safety network () and a First responder network () is automatically bridged in response to receiving the emergency signal so as to manage data control and bandwidth allocation between the safety network and the first responder network. Other networks that may also be bridged with the first responder network so as to manage data control and bandwidth allocation among the various networks include IT networks and building automation networks in order to expand first responder network coverage.

Communications network and management arbitrator

A method, wireless controller, and information processing system that define communication channel allocation. Communication channel allocation commands associated with a first network are monitored (). The first network () comprises a plurality of communication frequencies assigned by the communication channel allocation commands. A set of communication frequencies are determined that have been assigned to wireless devices () associated with the first network () in response to the monitoring. A specification of unused communication frequencies within the plurality of communication frequencies are transmitted to a second network () in response to the determining.

Spectrum coordination controller

A method for priority-based admission control in a network, comprises receiving an admission request for transmitting an information flow to a network through a communication channel and determining an admissible region within a range of a channel data rate of a communication channel for an information flow in response to a priority of the information flow, where the priority of the information flow is one of a plurality of priorities of information flow. The admissible region is one of a plurality of admissible regions within the channel data rate range that correspond to different ones of the plurality of priorities of information flow, respectively, and each of the plurality of admissible regions within the channel data rate range is useable for transmitting information flow with a respective one of the plurality of priorities. Further included in the method is determining an available channel data rate of the communication channel for receiving the information flow by the network, and granting the admission request for the information flow after determining that the available channel data rate of the communication channel is within the admissible region of the channel data rate range.

Priority-based admission control in a network with variable channel data rates

During operation of a secondary communication system, cells () are formed by a plurality of localized nodes () to alert other nodes within the cell of frequencies which must be protected or otherwise avoided. All nodes within the cell monitor a differing subset of all frequencies available, and share information with respect to acceptable and protected frequencies with each other via low-power, short-range communication. Each node then forms a list of available channels for communication, and chooses a single node to report this information back to controller.

Method and apparatus for determining appropriate channels for communication

A method and apparatus for wirelessly transmitting data between two devices () is provided herein. During data transmission, a data and a strobe signal are transmitted simultaneously on the I and Q-channels, respectively, of over-the-air interface. More particularly, QPSK modulation is utilized, with the strobe signal being transmitted via the I-channel, and the data signal being transmitted via the Q channel, (or vice versa). Additionally, illegal constellation transitions are utilized to signal the transmission of control information.

Method and apparatus for wireless data transfer

The presence of the non-television transmission within a channel is used to indicate that secondary non-licensed usage of the channel is permitted. Specifically, if secondary users incorporate the means to identify the unique modulation signature of the secondary user, decoding of a beacon signal may not be necessary. With the above in mind, a radio will be prevented from transmitting within a frequency band when no transmission within the licensed spectrum is currently taking place; the licensee is currently transmitting on the spectrum (e.g., television transmissions are taking place utilizing the spectrum, or the radio cannot sense the presence of a data channel (beacon).

Method and apparatus for allowing communication units to utilize non-licensed title spectrum

A manufacturing method (700) and device ((100, 200, 300, 400, 500, 600) provide a fixturing frame with an optics array alignment for a wireless local area network optics fixture array that has a plurality of circumferential cavities for collecting and detecting optical signals to achieve a quasi-diffuse collection/reception pattern.

Manufacturing method and device for a wireless local area network optics

A controller circuit (107) between a transceiver (104) and an RS232communication port (103) provides wireless communication to a remote unit and includes a transmitting and receiving mode indicator (503), a first delay circuit (506) for delaying a packet of data (501) before being transmitted, a timer (502) counting a period of time during which delaying termination of transmitting mode following a last data bit of the packet of data (501). Further, a receive signal detector (504) produces a carrier detect signal (521) and its delayed version (525) through a second delay (522) when a data packet (520) is received from the transceiver (104), first and second AND gates (523, 528) and a third delay circuit (526) receive signals (525and 520) to produce a reformatted received data packet (529) compatible to the RS232format for input to the RS232communication port (103).

Method and apparatus for wireless RS232 communication

A method (600), device, wireless transceiver, computer and personal digital assistant (300, 400) provide collision presence detection in wireless intensity-modulated binary-coded data transceivers which is compatible with the collision detection employed in IEEE standard 10BASE-T Ethernet. A measurement of the degree of correlation which exists between the signal transmitted and the signal received provides a basis for efficient collision detection in CSMA systems.

Method, device, wireless transceiver and computer for providing

The present invention provides a modem (100), method (300) and device (103) for indicating received signal strength and presence for intensity modulated binary-coded data packets with reduced recovery time in a packet data receiving system. The device includes a receiver for binary coded wireless data packets having a first band-pass processing unit, for receiving modulated electromagnetic signals and converting the modulated electromagnetic signals to binary data signals and a second band-pass processing unit, coupled to the receiver, for providing a logarithmic received signal strength indicator signal, RSSI, using a low-frequency cutoff f.sub.L2 greater than a low-frequency cutoff f.sub.L1 of the first band-pass processing unit.

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Barrington, IL, United States of America

S David Silk