Motorola Solutions, Inc.

Motorola Corporation

David G Wiatrowski

Dipendra M Chowdhary

Thomas B Bohn

Yueh Ching Chung

John P Belmonte

Hun Weng Khoo

Donald G Newberg

Satyanarayan R Panpaliya

Badarinath Patibandla

Tejal S Patel

Thomas J Senese

Sanjaykumar S Karpoor

Satish R Panpaliya

Bradley Michael Hiben

Christopher N Kurby

Alan L Wilson

Darrell James Stogner

David L Muri

Robert A Biggs

Kevin M Ittner

Chad Trank

David P Gurney

Matthew Richard Miller

Kevin G Doberstein

Isam Robert Makhlouf

David R Mills

Ethan Y Chen

Stephen C Glass

David J Ley

Terry K Mansfield

Krsman Martinovich

Gregory D Bishop

Teik Choon Teh

Kok Seng Ang

John P Monson

Srikumar K Nayar

Mohammed A Foustok

Kevin L Good

Abhishek Kumar

Marc S Desruisseaux

Hemant J Patel

Timothy A Auch

Puneet K Puri

Sanjaykumar J Karpoor

Roopak M Ingole

Delia M Marchosky

Helen Koenigsman

Zhijun Zhu

Mark C Gonsalves

Stephen Lee

Yu-Ling F Chang

Grace Zhong

Eric Mccoy

Rui Yang

Don Weerasiri

Tianfang Liu

A device, system and method to control operation of a base station is provided. A computing devices communicates, to two or more spectrum controllers, respective authorization requests associated with a physical base station at a given location, the two or more spectrum controllers managed by different respective entities. The computing device receives, from the two or more spectrum controllers, one or more respective spectrum controller responses to the respective authorization requests. When the one or more respective spectrum controller responses include at least one authorization associated with the physical base station, the computing device provides, to the physical base station, permission to operate via respective RF transmissions.

Device, system, and method to control operation of a base station

A multitenant private communication system and a method for providing mobility and access control across tenant boundaries in the multitenant private communication system. The method includes receiving a first connection request from a user device for connection to first network infrastructure of a first tenant and establishing a connection between the user device and a first private sub-network of the first tenant through the first network infrastructure. The method further includes receiving a second connection request from the user device for connection to second network infrastructure of a second tenant of the multitenant private communication system and determining whether the second network infrastructure is a guest network infrastructure of the user device. The method also includes establishing a connection between the user device and the first private sub-network through the second network infrastructure when the second network infrastructure is the guest network infrastructure of the user device.

Mobility and access control across tenant boundaries in a multitenant private communication system

A method and device for zero configuration direct fallback communication is provided. In one aspect a method comprises selecting a channel in a fallback radio band based on at least a portion of at least one system operating parameter for a primary radio band. The method further comprises switching to the selected channel in the fallback radio band. The method also comprises communicating over the selected channel in the fallback radio band.

Method and device for zero configuration direct fallback communication

Methods and systems for dynamically allowing a guest device to a join a private citizens broadband radio systems (CBRS) network. The method includes determining one of a location of the guest device and a location of a public safety incident. The public safety incident is associated with the guest device. The method also includes determining that one of the location of the guest device and the location of the public safety incident is in a coverage area of the private CBRS network. The method further includes reconfiguring the private CBRS network to allow operation of the guest device on the private CBRS network, and operating the guest device on the private CBRS network.

Dynamically allowing a guest device to a join a private CBRS network

A process for connecting a user equipment to a radio access network in which communication frequencies are dynamically allocated from a shared radio spectrum. In operation, the user equipment maintains a radio frequency scan list that indicates a prioritized order with which a plurality of radio frequencies selected from the shared radio spectrum are to be scanned. The user equipment scans the radio frequencies in accordance with the prioritized order that is indicated in the radio frequency scan list and selects a target radio frequency from the radio frequencies based on the scanning of the radio frequencies. The target radio frequency corresponds to a frequency band that is dynamically allocated from the shared radio spectrum to a radio access network associated with the user equipment. The user equipment then connects to the radio access network using the frequency band corresponding to the target radio frequency.

Method of operating a user equipment to connect to a radio access network

A process for resolving call collisions in a digital conventional direct mode includes monitoring a direct mode communication channel for transmissions from other direct mode radios in the plurality of direct mode radios. In response to detecting a new call request: identifying a last radio to transmit on the direct mode channel, transmitting a new call request for receipt by the last direct mode radio to transmit, monitoring the direct mode channel for a response from the last radio to transmit, and if a call grant granting the new call request is received from the last radio to transmit, initiating the new direct mode call on the direct mode communication channel. If the call grant is not received, at least temporarily refraining from initiating the new direct mode call.

Method and apparatus for resolving call collisions in a digital conventional direct mode

A method for interrupting active communications within a communication network, the method comprising in one embodiment: operating a communication device to terminate communication activity in response to receiving an interrupt request from an interrupting device; operating a repeater to wake up and initiate message communication activity in response to receiving a base station downlink activation message from the interrupting device; and operating the interrupting device to transmit one or more messages on a receive frequency of the repeater. The method for interrupting active communications within a communication network comprising in an alternate embodiment: operating a repeater, in response to receiving an interrupt request from an interrupting device, to clear each channel hosted by the repeater: informing the interrupting device by the repeater that all channels have been cleared; de-keying the repeater; operating the interrupting device to transmit one or more communications on a transmission frequency of the repeater.

System and method for interrupting communications within a communication system

A wireless method, apparatus, and system provide simultaneous transacting of voice and data on adjacent timeslots through a combination of channel access rules and sacrificing small audio portions when required. This includes wirelessly operating on at least two timeslots which are adjacent to one another, operating voice on a first timeslot of the at least two timeslots and monitoring a second timeslot of the at least two timeslots for data, and, responsive to a data transmission request and receiving voice on the first timeslot, discarding a portion of the voice in the first timeslot to provide a larger guard time for programming between the first timeslot and the second timeslot and transmitting data in the second timeslot based on the data transmission request.

Method and apparatus for wirelessly transacting simultaneous voice and data on adjacent timeslots

A method for enabling full duplex direct mode calls between radios in an N:1 slotting ratio TDMA radio system includes detecting a request for a full duplex direct mode call at a first radio, transmitting in a particular slot of a first recurring time slot of N recurring time slots on a first single frequency one of a call request and a call header identifying the call as a full duplex call. Subsequently transmitting, by the first radio, during a plurality of subsequent first recurring time slots, outbound voice and/or data transmissions. And receiving, during a plurality of second recurring time slots of the N recurring time slots, each second recurring timeslot positioned immediately adjacent a respective first recurring time slot in an interleaved manner, inbound voice and/or data transmissions from the second radio and playing back the inbound voice and/or data transmission at the first radio.

Full duplex direct mode individual and group calling using adjacent time slots in a TDMA system

A method for enabling full duplex individual calls in repeater mode between two subscriber units (SUs) in a N:1 slotting ratio time division multiple access (TDMA) radio system includes receiving a request for a full duplex individual call from a first SU identifying a second SU as a target of the call. Determining to grant the request and subsequently assigning a first time slot of the N time slots on a first single frequency for one of inbound and outbound transmissions for the call between an assigned second repeater and the first SU and a second time slot on the first single frequency for the other of inbound and outbound transmissions for the call between the assigned second repeater and the first SU. Further, a grant message is transmitted to the first SU indicating the assigned first single frequency and assigned first and second time slots.

Full duplex individual call via linked single frequency repeaters

A method is disclosed for determining a connectivity status of radios in a coverage group. Each coverage group includes radios configured to transmit and receive range messages on a channel and a timeslot. Each radio in the coverage group is configured to generate a range message and to transmit the range message to each other radio in the coverage group. Each radio in the coverage group is also configured to receive, from each other radio in the coverage group, a range message generated by each other radio. Based on the range message received from each other radio, each radio is configured to determine bi-directional connectivity between the receiving radio and the radios that sent the D-ARTS messages. The determined bi-directional connectivity status is between each radio and each of at least two other radios in the coverage group.

Method and apparatus for automatically determining a communication range status of communicating radios

A system and method for interrupting a transmitting device during a call. In the system, calls are transmitted from a first device on a communication channel as a series of channel frames. At predetermined times during the transmission, the transmitting device is configured to drop channel frames, resulting in open channel frame periods where the transmitting device is not transmitting on the communication channel. During these open channel frame periods, the transmitting device is also configured to switch to a receiving mode. Other devices in the system are capable of switching into a transmitting mode during the open channel frame periods and, when applicable, sending an interrupt request on the communication channel to the transmitting device in order to request access to the channel.

System and method for interrupting a transmitting device in a communication system

Methods of communicating location information from a subscriber to a repeater are described. The subscriber switches from a working channel to a data revert channel, transmits a request for a periodic or one-time window to transmit an update, and determines from grant information in the response announcement the allocated window and frame before switching back to the working channel. Before the allocated time, the subscriber switches to the data revert channel, confirms whether it remains scheduled to transmit the update from a repeater announcement, and if so transmits the location update in either the current or reserved window. The announcements from the repeater contain the identity of the next window and frame and the subscriber reserved to use the window in addition to grant information. The subscribers may or may not be time-aligned and the data and data revert channels may or may not be synchronized.

Channel structure for non-contention based windows and contention based random access requests

Disclosed is a method of automatic establishment of a location-based talk group call with reduced messaging overhead. The initiating device may be a subscriber unit (SU). The SU determines a geographic reference location and generates location data representative of the location. The SU broadcasts a location-based talk group call header including the location data and including a location-based talk group call identifier field set to cause other SUs receiving the call header to receive and output subsequent data associated with the call header responsive to determining that its current geographic location satisfies the location criterion of the call. The location criterion may be fully determined by the initiating SU and specified in the call header, and may take the form of a specified radius that extends from the geographic reference location represented in the call header.

Method and device for automatic creation of a location-based talk group call with reduced messaging overhead

Growing community of inventors

Woodstock, IL, United States of America

David G Wiatrowski