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Systems, methods, and devices for frequency-selective AGC
A wideband phase detector configured to receive an intermediate frequency (IF) signal having a plurality of information signals at predetermined carrier...
Method and apparatus for propagating public safety multicast and broadcast
services among public safety personnel
Public safety user equipment (PS UE) that establishes a first wireless communication channel over a primary network to at least one multimedia multicast or...
Method and apparatus for single port modulation using a fractional-N
A method and apparatus for single port modulation of a phase locked loop frequency modulator includes a phase locked loop with a voltage controlled oscillator...
Method and apparatus for providing session initiator privilege, priority
and presence notification for...
A method for providing presence notification for PTT chat group communications includes a server receiving, from a communication device of a member of a chat...
Method and apparatus for in-channel interference cancellation
A communication device includes a receiver that is capable of canceling in-channel interference. The receiver includes an antenna for receiving a wireless...
Method of providing a mixed group communication session
A method of providing a mixed group communication session for a mixed group containing protected users and a guest user is provided. The method uses a secure...
Electro-optical code reading terminal for switching from a printed code
reading mode to an electronically...
An electro-optical code reading terminal for dynamically switching mode of operation from a printed code reading mode to an electronically displayed code...
Control head for a mobile radio
Incident aware service operations for wireless infrastructure
In a two-way radio frequency (RF) communications system having a plurality of subscriber units (SUs) and a supporting infrastructure including a wireless core...
Method and apparatus for managing resources in a wireless communication
system implementing multiple air...
A wireless communication system is provided that comprises a base station (BS) serving a subscriber unit (SU) in a Public Safety Narrowband (PSNB) network, an...
Communication system and method for securely communicating a message
between correspondents through an...
A wireless communication system includes a pager or similar device that communicates to a home terminal. The home terminal confirms the identity of the pager...
Method and apparatus for extracting the quadrature component of a complex
signal from the in-phase component...
A method and apparatus for a receiver system in a receiver that includes at least two front end branches, each branch having its own intermediate frequency (IF)...
Scalable broadband group call via unicast downlink traffic consolidation
and local re-broadcast
A method, system, and device consolidate unicast downlinks in a broadband radio access network (RAN) for a requested group call. A subset of subscriber devices...
Earpiece audio device
Method and apparatus for updating and using updated group aliases and
An updated group alias, based on one or more of a location, function, and purpose of a group, is transmitted to a subscriber unit (SU) and displayed at the SU,...
Radio frequency transistor and matching circuit grounding and thermal
In a communication device, a heat sink includes a solderable top surface with multiple upward facing swaging protrusions. A spacer is placed on top of the top...
Mitigating transmission interference between digital radio and broadband
A broadband device (105) can detect a proximate narrowband transmission (152) from a narrowband communication device (145). The narrowband transmission (152)...
Adaptive off-channel detector for receivers
Receivers (500) and methods of adaptively adjusting the receivers based on a received interferer are described. The peak-to-average ratio of a received signal...
Method and apparatus for confirming delivery in a multi-channel receiving
An apparatus for simultaneously receiving incoming messages on at least two channels in a multi-channel device, wherein a first incoming message is received on...
Method and apparatus for adapting a battery voltage
An apparatus and method for adapting a voltage of a battery pack is provided through a switch control logic coupled to the cells of the pack. The switch control...
Method and apparatus for managing common and application specific presence
A method and apparatus for managing common and application specific presence information, wherein the apparatus programs a computer to perform the method, which...
Method and apparatus for selecting one of a plurality of networks for an
application service based upon...
A communication device performs a method for selecting a network for an application service based upon system performance. The method includes obtaining...
Apparatus and method for enabling roaming radios to operate in different
systems during an incident event
A controller in a network assigns a dedicated foreign radio talk group to each radio frequency (RF) site in the network for use by foreign radios during an...
Method and apparatus for establishing radio communications on a trunked
network using an inbound proxy
A method and device enables establishing radio communications on a trunked network using an inbound proxy. The method includes receiving, at a first subscriber...
Private certificate validation method and apparatus
Methods and apparatuses for validating the status of digital certificates include a relying party receiving at least one digital certificate and determining if...
Method and apparatus for sending a channel timing message in a digital
mobile radio system
A method and apparatus for automatically switching functions associated with a leading radio to another radio on a channel is disclosed. The method includes...
Service data flow detection in a conforming 3GPP access network having a
packet modification function
A system includes: a packet processing function and a packet modification function. The packet processing function receives a packet generated by a sending...
Proactive scheduling methods and apparatus to enable peer-to-peer
communication links in a wireless OFDMA system
Systems, methods and apparatus are provided for scheduling resources in Orthogonal Frequency-Division Multiple Access (OFDMA) communication networks for "direct...
Method and device to support site activation using a hailing channel
A trunked base station (BS) in a trunked radio system tunes its receiver to the hailing channel and monitors for a hailing signal. A subscriber unit (SU) scans...
Method and system for setting quality of service for a bearer in response
to an emergency event
An interoperability gateway performs a method for setting Quality of Service for a bearer in response to an emergency event. The method includes the...
Antenna arrangement and mobile communication device using same
An antenna arrangement (200) and communication device (500) using the antenna arrangement connect a plurality of transceivers (302, 304) to a plurality of...
Method and apparatus for enhancing a multi-stage hibernate and resume
Before hibernating a computing device (102), system software components (116) are notified of an upcoming hibernation process. The notifications are conveyed...
Methods for coordinating wireless coverage between different wireless
networks for members of a communication group
A method for coordinating wireless coverage between a first wireless network and a second wireless network for a communication device, wherein the communication...
Method and device for consolidating location-dependent information in a
radio access network
A process for consolidating location-dependent information in a two-way radio system includes determining a geographic location of each subscriber unit in a...
Secure quality of service
Methods and apparatus are provided for communicating a flow of packets with a requested quality of service. An exemplary method involves receiving a first...
Method of efficiently synchronizing to a desired timeslot in a time
division multiple access communication system
In operation, a transmitting device selects a synchronization pattern associated with the desired timeslot that is at least mutually exclusive from...
Method and apparatus for preventing electrolysis on battery contacts in a
dual-contact battery system
A dual-contact battery pack comprises a housing, a plurality of battery cells located within the housing, a first set of contacts and a second set of contacts...
Adapter system for a portable electronic device
An adapter system including an adapter unit is described herein. The adapter unit includes receptacles shaped for removably receiving at least a portion of a...
Incenting divulgence of information for binding identifiers across
information domains while maintaining...
Disclosed are methods for extracting and using information about an entity that has a presence in a number of information domains. The entity has separate...
Systems and methods for authenticating mobile devices at an incident via
A mobile device collaboration method includes provisioning a first mobile device with unique user identification related to a role and skill set of an...
Apparatus and method for a dual watch receiver
A receiver for a wireless communication device provides a dual path receiver receiving first and second protocol-agnostic, uncorrelated receive signals...
Policy determination for user equipment providng mutual aid in a visited
enterprise operating area of a long...
A Mutual Aid QoS Function (MAQF) performs a method for determining policy for user equipment (UE) providing mutual aid in a mutual aid enterprise operating area...
Active RC filter having gain-setting attenuator
Disclosed herein are embodiments of an active RC filter that has a gain-setting attenuator. An embodiment takes the form of a filter circuit having a...
Method and apparatus for uploading data
A method and apparatus for uploading data is provided herein. During operation vehicles in the field will upload their digital multimedia evidence (DME) to a...
Method and apparatus for providing parental control using a playlist
A method for providing parental control via a playlist is disclosed. A playlist is received from a control server. One or more channel change control messages...
Method and apparatus for storing and distributing encryption keys
A plurality of encryption keys is generated, and each encryption key is associated with one geographical area of a plurality of geographical areas. Each...
Apparatus and method for operating a transmitter
A linear transmitter includes a closed loop feedback path to maintain linearity of a power amplifier subsystem. The closed loop feedback path provides RF...