Nextel Communications

US Patent D528074 Mobile device battery charger mounting unit

US Patent 7127266 System and method for efficient media resource allocation

US Patent 7352693 Fault tolerant wireless communication systems and methods

US Patent 7353030 Systems and methods for handovers between base radios

US Patent 7389120 System and method of providing private dispatch calling between users in distinct geographical areas

US Patent 7395075 System and method for collecting continuous location updates while minimizing overall network utilization

US Patent 7409202 Communications restrictions for mobile group communication devices

US Patent 7437155 System and method for operating a private wireless communications system

US Patent 7437163 Method and computer-readable medium for controlling operations of a dual-dialer state machine

US Patent 7437171 System and method for long distance dispatch calling restrictions

US Patent 7509137 Method and system for address translation and aliasing to efficiently utilize UFMI address space

US Patent 7532909 System and method for providing dedicated paging channels for walkie-talkie services

US Patent 7551582 System and method for optimizing walsh code assignments

US Patent 7551924 System and method for using a dual-mode mobile station

US Patent 7574236 System and method of operating an antenna in MIMO and beamforming modes

US Patent 7599479 Systems and methods for generating bills

US Patent 7599788 System and method for monitoring the movement of one or more vehicles

US Patent 7600159 System and method of providing notifications related to diagnostic information

US Patent 7606593 Priority dispatch communications in publicly-accessible networks

US Patent 7616165 Multiple band antenna arrangement

US Patent 7616696 System and method to increase sector throughput in a multi-carrier operation

US Patent 7616957 Systems and methods for wireless location based services

US Patent 7623842 System and method for determining a location of an emergency call in a sparsely-populated area

US Patent 7633913 Wireless communication system using joint detection to compensate for poor RF condition based on user priority

US Patent 7634279 System and method for partially time-based allocation of vocoder resources

US Patent 7636580 Method and apparatus for handling integrated digital enhanced network calling restrictions

US Patent 7636581 Inter-network dispatch talk group calls

US Patent 7643406 System and method for enhancing capacity for a wireless communication system

US Patent 7684817 Wireless communication system having a signaling gateway serving as an intermediary between a dispatch call controller and a base station

US Patent 7684818 System and method for facilitating communications between distinct dispatch communication systems

US Patent 7688680 Systems and methods for visual light communication in an underwater environment

US Patent 7693512 Systems and methods for location-based forwarding of communication services

US Patent 7693517 System and method for handoff between base stations

US Patent 7697951 System and method for distributed dispatch translation gateways

US Patent 7702346 System and method for facilitating roaming of push to talk subscribers across disparate dispatch networks

US Patent 7702347 System and method for temporary talk groups

US Patent 7702361 System and method for providing communication and positioning information

US Patent 7711384 Method and computer-readable medium for in-call status for dispatch group calls

US Patent 7711393 Cellular communications network optical cross-connect switching architecture

US Patent 7729246 System and method for supporting inter-network dispatch calls

US Patent 7738856 Systems and methods for prepaid dispatch communications

US Patent 7738897 Broadcast dispatch chatroom

US Patent 7738899 System and method for groups comprising non-communication address objects

US Patent 7738900 Systems and methods of group distribution for latency sensitive applications

US Patent 7738915 System and method for private wireless networks

US Patent 7742780 Method and computer-readable medium for performing predictive name completion, categorizing call logs and accessing dispatch ID numbers in a database for dispatch dialers

US Patent 7751432 Systems and method for a dispatch communication router

US Patent 7751543 System and method for button-independent dispatch communications

US Patent 7751797 Systems and methods for providing presence information

US Patent 7751798 Method and computer-readable medium having a program for managing billing for a telecommunications campus by assigning different billing rates inside the campus

US Patent 7751806 System and method for monitoring dispatch communications

US Patent 7751810 System and method for transmitting information to subscriber communication units at events

US Patent 7751822 Systems and methods for frequency reuse in wireless networks

US Patent 7751833 System and method for determining a base transceiver station location

US Patent 7756524 System and method for partially count-based allocation of vocoder resources

US Patent 7756540 Public dispatch chatroom

US Patent 7764978 System and method for providing in-building wireless network coverage

US Patent 7769404 Guaranteed talk permit with forced audio in a dispatch communication network

US Patent 7769915 Systems and method of controlling control and/or monitoring devices

US Patent 7796547 Method and apparatus for providing information to mobile stations in inactive states

US Patent 7797010 Systems and methods for talk group distribution

US Patent 7797132 Benchmarking and testing GPS performance on communication devices

US Patent 7813641 Fiber optic cable topology for fiber optic repeater distributed antenna system

US Patent 7813737 Integrated digital enhanced network migrated subscriber mapping

US Patent 7817995 Systems and methods for scheduling the recording of audio and/or visual content

US Patent 7818020 System and method for joining communication groups

US Patent 7822437 System and method for dispatch roaming registration

US Patent 7831266 Method and system for routing a push-to-talk (PTT) call in a communications network

US Patent 7844256 Enabling dispatch calls for long-distance-restricted subscribers

US Patent 7844278 Systems and methods for wireless communications with a heavily-loaded wireless network

US Patent 7844294 Systems and methods for opt-in and opt-out talk group management

US Patent 7848492 System and method for testing the dispatch functionality of a communications network

US Patent 7852853 System and method for transmitting video information

US Patent 7853238 Powerline base station

US Patent 7853265 Broadband wireless router-architecture enhancements for VoIP

US Patent 7856206 System and method for manually adjustable directional antenna

US Patent 7860528 Mobile universal communication gateway

US Patent 7864716 Talk group management architecture

US Patent 7865204 System and method for a multi-technology control channel for wireless devices

US Patent 7877112 SIM card data transfer system and methods

US Patent 7899078 System and method for controlling power saving functions of a wireless communication station

US Patent 7904057 System and method for posting and retrieving audio messages via dispatch communications

US Patent 7912070 System and method for seamlessly switching a half-duplex session to a full-duplex session

US Patent 7920862 System and method for improved IMEI registration

US Patent 7920886 Systems and methods for facilitating dispatch communications

US Patent 7924778 System and method of increasing the data throughput of the PDCH channel in a wireless communication system

US Patent 7924871 Control channel priority access systems and methods

US Patent 7925266 Method for selecting wireless transmission site locations

US Patent 7929940 System and method for transmitting wireless digital service signals via power transmission lines

US Patent 7933621 Systems and methods for merging active talk groups

US Patent 7933623 System and method for addressing dispatch stations

US Patent 7945207 Wireless communications gateway

US Patent 7945244 Method and apparatus for communicating using a plurality of identities

US Patent 7945261 Systems and methods for provisioning and synchronizing wireless subscriber data

US Patent 7957756 Method and apparatus for floor control in multi-media push-to-talk network

US Patent 7961618 System, method and computer-readable medium for on-demand dynamic bandwidth allocation in a network of antennas for multiple base transceiver stations

US Patent 7965692 Systems and methods for mobile node handoff

US Patent 7965721 System and method of transferring communications between networks

US Patent 7966014 Method and computer-readable medium for managing roaming restrictions in a wireless environment

US Patent 7966029 Method for push-to-talk pre-emption

US Patent 7970422 System and method for frequency planning

US Patent 7970424 Method and apparatus for floor control in multi-media push-to-talk network

US Patent 7974224 Subscriber unit capable of switching between full-duplex and half-duplex modes during an on-going session

US Patent 7983228 Integration of IP multimedia subsystem and a push-to-talk interoperability infrastructure

US Patent 7983680 System and method for converged network services

US Patent 7990917 Wireless communications system including an originator base station capable of notifying of channel resource reservation status

US Patent 7991389 Dispatch communication forwarding

US Patent 8000459 System and method for a wireless meta service

US Patent 8009613 Systems and method of coupling a wireless macro network to a wireless adapter

US Patent 8009680 System and method for a private wireless network interface