Matches 1 - 26 out of 26
Match Document Document Title
7428423 Communication system with controlled talk around mode  
The method provides talk around in an OFDMA communication system by sending a talk around request from a subscriber unit to a base unit. At the subscriber unit a RSSI (received signal strength...
7333824 Method and apparatus for supporting P2P communication in TDD CDMA communication systems  
A method performed by a network system is provided for canceling interference signals brought by introducing P2P communication in wireless communication systems, comprising: receiving a call...
7308266 Method and system for peer-to-peer communication management in wireless communication networks  
The present invention provides a wireless communication system capable of managing peer-to-peer (P2P) communications. In one embodiment of the invention, upon receiving a request for initiating a...
EP0700226B1 Method and apparatus for automatically selecting a radio talkgroup  
Abstract of EP0700226 A communication system (100) has automatic selection of talkgroups based on geographically defined areas. The system (100) includes wireless two-way communication units (120)...
7164930 Switching a call from a network assisted communication mode to a direct communication mode  
A mobile communication device ( 214 ) in a communication system ( 200 ) initiates a call over the fixed equipment network of the communication system to another mobile communication device ( 216 )....
7099370 Wireless communication system and method of controlling same  
A wireless communication system has a plurality of wireless communication devices capable of communicating with one another directly without the intervention of another device, and a wireless...
7010313 Communication system with controlled talk around mode  
The method provides talk around in the communication system by sending a talk around request from one of the subscriber units 101–108 to the base unit 100 . At the subscriber unit a RSSI...
6804289 Wireless communication system and method of controlling same  
A wireless communication system has a plurality of wireless communication devices capable of communicating with one another directly without the intervention of another device, and a wireless...
6647244 Wireless vehicular repeater system  
A wireless communications system has a plurality of base stations 1 , a plurality of mobile vehicular repeater units 2 , and a plurality of portable units 3 . In a public safety network context,...
6263210 Wireless communication system and method of controlling same  
A system, device, and method of controlling a wireless communication system including a plurality of wireless communication devices and a wireless control unit for controlling the wireless...
6226524 Method of automatically selecting talk-around mode or repeater mode depending on repeater availability  
A subscriber unit automatically selects repeater access mode, if a repeater is available, or talk-around mode, if a repeater is not available (500). The subscriber unit initiates a call by...
6041226 Method and apparatus for monitoring subscriber talk-around usage  
A method and apparatus for monitoring a subscriber unit's use of a talk-around mode is accomplished when detection of a subscriber unit's selection, and subsequent deselection, of the talk-around...
5995500 Method and apparatus for direct communication between mobile stations  
In a TDMA/TDD communication system and method, communication throughput is increased by allowing direct duplex communication between the mobile stations that are within close proximity of each...
5991624 Method and apparatus for expanding a radio communication system and enabling communication between terminals  
A radio communication system includes a base station and a plurality of terminals including a new terminal. The system enables deletion of registration data relating to the new terminal when an end...
5983072 Establishing a telecommunications connection in a mobile communication system  
A method, a mobile communication system and a mobile station for establishing a telecommunication connection on a direct mode channel and for improving radio coverage by way of using a simple and...
5903847 Method for controlling a radio unit  
A method for controlling a radio unit in a radio system which has at least a first radio unit and a second radio unit in which at least one of the radio units communicates on a direct mode channel....
5887265 Channel selection for radio communication supportable with repeaters  
A radio (1) for radio communication supportable with repeaters. The radio (1) has a transceiver (2) for receiving information on either a repeater channel or a talkaround channel. A monitor (3) is...
5881095 Repeater assisted channel hopping system and method therefor  
A radio communication system (100) includes a repeater (111) that operates with a transceiver (132) on a channel hopping sequence. The repeater receives a request for repeater service transmitted...
5880777 Low-light-level imaging and image processing  
An imaging system is provided for imaging a scene to produce a sequence of image frames of the scene at a frame rate, R, of at least about 25 image frames per second. The system includes an optical...
5790938 Method for controlling a subscriber station in a mobile radio system  
A method for controlling a subscriber station operating on a direct mode channel in a mobile radio system. The mobile radio system is one which includes a radio network with at least one base...
5781860 Method for controlling subscriber stations in a radio-telecommunications system  
In a radiotelecommunications system where some of the subscriber stations are able to communication with one another on a direct mode channel, to direct subscriber stations to one and the same...
5771463 Method for controlling a subscriber station in a radio system  
A method for controlling a subscriber station communication on a direct mode channel in a radio system, in which at least one base station is communicating via channels, and subscriber stations. To...
5666661 Method for automatically bypassing the use of a communication system infrastructure  
Within a communication system (100), a communication can be switched from a system mode of operation to a direct mode of operation when the distance relationship between the units (102, 103)...
5594947 Method for providing alternate communication services based on geographic location  
Alternate communication services may be provided in a communication system 100 based on the geographic location of a target communication unit. When a service request, which identifies the target...
EP0700226A2 Method and apparatus for atomatically selecting a radio talkgroup  
A communication system (100) has automatic selection of talkgroups based on geographically defined areas. The system (100) includes wireless two-way communication units (120) capable of...
4449030 Apparatus for sensing the distance between an object of electrically conductive material and a reference point  
An apparatus for sensing the distance between an object of electrically conductive material and a reference point has an electrode, the tip of which constitutes the reference point. The electrode...
Matches 1 - 26 out of 26