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Class 455/443 - Overlapping cells


Subclass of Class 455 - Telecommunications
Definition: Subject matter including the handoff in a special situation
No. of patents: 323
Last issue date: 11/15/2011


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NumberTitleIssue Date
8060099Inter-sector control channel transmission
Provided is a more efficient manner of transmitting a control message to reach into a neighboring sector (e.g., inter-sector) of a wireless network environment. The control message can be utilized for purposes such as handoff, indicating an amount of interference, i...
11/15/2011
8060100Neighbor list control for a wireless communication system
A control system processes a first neighbor list for a first base station to identify a second base station and a third base station. The control system processes a second neighbor list for the second base station and a third neighbor list for the third base station...
11/15/2011
8010116Distributed antenna communications system
A distributed antenna system comprises a base transceiver station, a plurality of distributed antenna units and a signal routing apparatus. The base transceiver station has a plurality of output ports that generate a plurality of downlink signals having overlapping ...
08/30/2011
7979073Apparatus and method for solving congestion in wideband code division multiple access system
Provided is an apparatus and method for solving congestion in a Wideband Code Division Multiple Access (WCDMA) system. A WCDMA node B broadcasts a congestion occurrence information message over a cell area when congestion is sensed. A mobile communication terminal t...
07/12/2011
7853260Method and apparatus for cell identification for uplink interference avoidance using inter-frequency measurements
A method and system for cell identification for uplink interference avoidance that includes a network device and mobile device in a communications network. Inter-frequency measurements are performed by a mobile device on a downlink carrier currently not used by the ...
12/14/2010
7813735Method and apparatus for performing a power efficient cell search in a multi-cell wireless communication system
A method and apparatus for performing a power efficient cell search in a multi-cell wireless communication system are disclosed. A wireless transmit/receive unit (WTRU) having a memory that stores a cell identification list of prioritized previously top-ranked cell ...
10/12/2010
7742767Radio communication using OFDMA and IFDMA
In a method for communicating by radio, a frequency band divided up into a plurality of subcarriers is used for the communication. Messages are sent from a base station to a user station and/or from the user station to the base station. Messages are processed at som...
06/22/2010
7697935Transfer of a user equipment in a communication system
The disclosure relates to transfer of a user equipment from a network to another network. In the method a user equipment communicating with a first network is transferred from the first network to a second network providing resources to a plurality of operators. Aft...
04/13/2010
7664502Radio network controller and method for handover of mobile terminal
In a radio network controller (100), a buffer (161) for buffering data received from a mobile terminal (MT) via different base stations (BS1 and BSX) is expanded in accordance with the magnitude of the difference between the data transmission ti...
02/16/2010
7558577Methods for dividing base station resources
Methods for dividing resources of base stations among multiple mobile stations are provided. According to one embodiment of the invention, an overlapping group having a plurality of mobile stations that are overlapped between at least two cellular areas are generate...
07/07/2009
7548751Mobile communications system for assigning a plurality of frequencies to a plurality of mobile terminals
Adjacent base stations transmit and receive a signal using a plurality of carriers (frequencies), for example, f1 through f3. One base station has the largest transmission power for the carrier f1 and the smallest transmission power for the carr...
06/16/2009
7437160Control of interfrequency handovers
A method and a mobile station for controlling interfrequency handovers of the mobile station is provided. The target value for a quality factor of the received downlink signal is used in determining a need for an interfrequency handover. The target value of the hand...
10/14/2008
7426400Wireless telecommunications overlay system
A wireless communication system includes first and second communication systems and a controller. The first communication system receives a first control signal indicating a first power level and receives first communications. The first communication system formats ...
09/16/2008
7424293User plane location based service using message tunneling to support roaming
An improved User Plane location based service (LBS) architecture and message flow, enabling seamless User Plane location based services even when a mobile or wireless device has roamed among different carrier networks. The present invention overcomes constraints inh...
09/09/2008
7420964Arranging packet data connections in office system
A method for establishing a packet data connection in a telecommunications system which includes an office network, an operator network, and a local area network between them. Data transmission from the office network through the local area network is adapted to a d...
09/02/2008
7412240Method and system wherein handover information is broadcast in wireless local area networks
A method and system wherein handover information is broadcast in a wireless local area network. Handover information is broadcast in a beacon frame thereby allowing WTRUs operating in a wireless area network to handover to available alternative systems as desired. W...
08/12/2008
7406324System and method for controlling services provided to multi-mode mobile stations
A multi-mode mobile station includes a first interface for wireless communication with a wireless local area network (WLAN) and a second interface for wireless communication with a wireless wide area network (WWAN). An internetwork service control system controls ho...
07/29/2008
7403488Scheduling packet flows in multi-rate wireless local area networks
A system and method schedule series of packets for transmission between terminals in a single wireless channel of a packet-switched local area network. The local area network can operate in an ad hoc mode or in infrastructure mode. A transmission rate is assigned to...
07/22/2008
7398088Handover method and apparatus
A method (FIG. 11) and corresponding wireless communication unit (102, FIG. 5) and mobility manager (116, FIG. 6) for facilitating a handover from one communication network (106) to another communication network (108)...
07/08/2008
7398091Method and apparatus for providing a multimedia broadcast/multicast service in a visited network
A communication system provides a Multimedia Broadcast/Multicast Service (MBMS) to a roaming user equipment (UE) by receiving, at a first network, a request from the UE to subscribe to an MBMS service and, in response to receiving the request, conveying to the UE a ...
07/08/2008
7395067Systems and methods for sectoring antennas in a wireless network
A wireless network may be managed by identifying one or more wireless subscriber systems included in a lobe pool of a wireless network, identifying at least one candidate subscriber system outside of the lobe pool with which to enable communications, and reconfiguri...
07/01/2008
7395066Method, system and device for improving performance during cell change
The invention discloses a communication system, method and devices for controlling transmission of packets to a user equipment during cell change. The communication system is configured so that data to be transmitted to the user equipment are first transmitted, e.g....
07/01/2008
7392052Hard handover method and controller
The invention is related to a controller of a communication system that includes a module for exchanging messages indicating a traffic channel change between communication system units before hard handover, a module for changing a downlink traffic channel, a module ...
06/24/2008
7389111Adaptive determination of hysteresis for facilitating base station selection, including handover, in a wireless communication system
The present invention provides method and apparatus for facilitating base station selection/handover by a user terminal in a distributed (e.g., cellular-type) wireless communication system. In accordance with one aspect, hysteresis is adaptively determined as a func...
06/17/2008
7386306Multi-carrier communications methods and apparatus
Methods and apparatus for implementing a multi-carrier communications system are described. Various approaches to a phased system deployment and system configurations resulting from different levels of deployment are described. In addition mobile node and methods of...
06/10/2008
7382798Radio communication system, radio communication device, radio communication method and computer program
A wireless ad hoc network is established so that communication terminals performing random access do not interfere with one another. A radio communication device grasps the existence of a surrounding radio communication device using a predetermined method, and when ...
06/03/2008
7382757Method for supporting a plurality of subscribers operating on different frequency bands using a single access point
The present invention allows a single access point (“AP”; 100) to support a plurality of devices (102, 104) operating on different frequency bands. During a first period of time, the AP initiates a contention free period at a first frequency. The A...
06/03/2008
7373151Distributed dynamic channel allocation technique for multi-carrier CDMA cellular systems with mobile base stations
A distributed dynamic channel allocation algorithm for a multi-carrier CDMA cellular system having at least one mobile base station. The distributed dynamic channel allocation algorithm uses channel power measurements from both the requesting mobile station and the ...
05/13/2008
7373128Inter-cellular interference cancellation
With respect to a first wireless transmit/receive unit (WTRU), at least one WTRU near the periphery of other cells is determined. Out of the at least one WTRU near the periphery, at least one WTRU nearby that WTRU is determined. The first WTRU codes are provided of ...
05/13/2008
7369852Methods for informing subscribers in a channelized network of adjacent sites
A method for informing a mobile device of adjacent sites in a RF communication system is disclosed. The RF communication system comprises a first network and a second network. At a site in the second network of the RF communication system, information is maintained ...
05/06/2008
7369856Method and system to support fast hand-over of mobile subscriber stations in broadband wireless networks
Method and system to support fast hand-over of mobile subscriber stations in broadband wireless networks. In connection with a hand-over process, a determination is made to which target base station (BS) an air interface for a mobile subscriber station (MSS) is to b...
05/06/2008
7366418High-speed wireless personal area network system for extending service area
A high-speed WPAN (Wireless Personal Area Network) system for extending a service area includes an optical fiber serving as a medium for transmitting data; a plurality of pico-nets each including a plurality of devices and a PNC (Pico-Net Coordinator) device for man...
04/29/2008
7363039Method of creating and utilizing diversity in multiple carrier communication system
In many cellular systems, reusing spectrum bandwidth, creates problems in boundary regions between the cells and sectors where the signal strength received from adjacent base stations or adjacent sector transmissions of a single base station may be nearly equivalent...
04/22/2008
7362728Handover control apparatus, relay router, gateway apparatus, access router base station, mobile communication system, and handover control method
A mobile communication system 100 according to the present invention comprises handover control apparatus 1 and radio terminal unit 10. The handover control apparatus 1 controls handover of a radio terminal unit 10 between access r...
04/22/2008
7359709Methods and apparatus for inter-BSC soft handoff
A method for performing a soft handoff, including establishing a first control channel via a network between a first BSC and a first BTS. The method also includes establishing a second control channel via the network between a second BSC and a second BTS. A call bet...
04/15/2008
7359707Wireless communications handoff method and system employing such
A method for reducing a delay in a wireless communications system resulting from a handoff while mitigating a risk of premature termination of wireless communications, the method includes comparing data indicative of actual use of the wireless communications systems...
04/15/2008
7353031Method for estimating the location of a wireless device in a communication network
A method for estimating the location of a blindfolded node (235) in a wireless network having reference nodes (225, 230) is provided. The reference nodes (225, 230) are combined into pairs (301) and each pair is checked to determine if th...
04/01/2008
7352737Communications in an asynchronous cellular wireless network
Systems and techniques are disclosed for establishing a reference corresponding to the timing of a received signal from the first source, determining the timing for each received signal from a plurality of second sources, adjusting the reference to the timing of the...
04/01/2008
7349699Method and apparatus for transmitting traffic on overlay and underlay carriers
Overlay and underlay carriers are used to transmit traffic over a cellular network for a call associated with a mobile terminal. A method involves determining which one of the underlay carrier and the overlay carrier is to carry the traffic as a function of a resour...
03/25/2008
7349373Apparatus and method for determining soft or softer handoff in mobile communication system
Apparatus and method for determining soft or softer handoff are described. The present invention includes the steps of comparing sectors in an active set to set values corresponding to the soft or softer handoff for the sectors, respectively in a base station, trans...
03/25/2008
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