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Class 455/436 - Handoff


Subclass of Class 455 - Telecommunications
Definition: Subject matter wherein a mobile station during a call is
No. of patents: 2900
Last issue date: 02/14/2012


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NumberTitleIssue Date
7620399Method and system for performing handover between multiple modes using a single wireless receiver
A method for performing handover between multiple modes for a mobile station is provided. The method includes operating the mobile station in a first mode. A handover from the first mode to a second mode is performed using a single wireless receiver. The mobile stat...
11/17/2009
7616956Measurement request report extensions for media independent handover
A method for generating a media independent handover (MIH) trigger in a wireless local area network begins by sending a measurement report request message to a measurement entity in the network. The measurement entity takes the measurements and sends a measurement r...
11/10/2009
7610049Wireless communication system, server and mobile station therefor
This invention provides a wireless communication system wherein a network to which a mobile station should be handed over can be selected, using parametric data collected from network components other than the mobile station. Time taken for a handover between differ...
10/27/2009
7606568Messaging for registration in an unlicensed wireless communication system
An unlicensed wireless service is adapted to generate the interface protocols of a licensed wireless service to provide transparent transition of communication sessions between a licensed wireless service and an unlicensed wireless service. In one embodiment, a mobi...
10/20/2009
7606569Wireless terminal for selecting optimal base station from among plural base stations
A wireless communication terminal includes: a base station list that stores information on a plurality of base stations, the information indicating whether each of the base stations accepts a call request from the wireless terminal; a selecting unit that selects one...
10/20/2009
7603123Method and system for performing a handoff in a wireless communication system, such as a hard handoff
A method for minimizing search time and disruption of current service on an originating frequency during a frequency search excursion to a target frequency as part of an inter-frequency hard handoff between cells on different RF CDMA channels. Disruption of service ...
10/13/2009
7603121Method and system for handoff between base stations supporting multi-profile operation in BWA system
Disclosed is a method for performing handoff by a Mobile Station (MS) in a Broadband Wireless Access (BWA) communication system including a serving Base Station (BS) and at least one neighbor BS adjacent to the serving BS, the serving BS currently providing a servic...
10/13/2009
7603122Mobile communication system, UE, handover control method for use thereof and program thereof
The present invention provides a mobile communication system capable of effectively utilizing the limited reception resources available to the UEs and thereby performing steady communication for use in the handover control of UEs. A UE, during communication, determi...
10/13/2009
7599694Method for transmitting uplink data during handoff
Disclosed is a method for transmitting an uplink data during handoff. A method for transmitting uplink data in a soft handoff system, in which a mobile station is simultaneously connected with at least two base transceiver systems under a control of a base station c...
10/06/2009
7596376Methods, apparatuses and systems facilitating client handoffs in wireless network systems
Methods, apparatuses, and systems directed to facilitating roaming and client handoffs in wireless networks. In one implementation, the present invention is directed to a coordination mechanism facilitating handoffs of wireless clients in a wireless network infrastr...
09/29/2009
7593731System and method for performing a fast handover in a broadband wireless access communication system
A broadband wireless access (BWA) communication system includes a mobile subscriber station (MSS), a serving base station (BS) with which the MSS performs communication, and a plurality of neighbor BSs. The serving BS transmits, to the MSS, a handover request messag...
09/22/2009
7593732System and method for supporting soft handover in a broadband wireless access communication system
A method for supporting handover in a BWA communication system is provided. The system includes an MS, a serving BS, and a plurality of neighbor BSs. The coverage area of each of the BSs is divided into sectors using different subcarrier bands. The MS collects infor...
09/22/2009
7590421Supporting idle mode of mobile station in wireless access system
A method of supporting a mobile station that is in an idle mode in a wireless communication system using a paging controller comprises entering an idle mode by a mobile station, receiving a paging command from a base station in the same paging group, the paging comm...
09/15/2009
7590422Neighborhood cordless service call handoff
A method and apparatus for providing telephone call hand offs between a local cordless service and a different wireless cellular service such as a macro-cellular service. The local cordless service may be configured such that a mobile telephone equipped subscriber m...
09/15/2009
7587204Cell re-selection utilizing system information length
A method for performing cell re-selection in a cellular network includes a subscriber terminal measuring received powers of neighbor cells in accordance with system information received from a current cell, selecting one of the neighbor cells as a new cell, the subs...
09/08/2009
7583966Mobile communications system, radio network controller, and active set control method
An active set control method for handover operation in a CDMA communications system in which propagation conditions of an uplink channel and a downlink channel for an access link of cell are different, provides that when a cell is deleted from the active set based o...
09/01/2009
7577434Handover method in wireless LAN by assigning an identification code to a mobile station
A handover method is to provided by which a station can move between access points with interruption in communication minimized. An access point assigns mobile stations existing in its own wireless network to identification codes, different from station to station, ...
08/18/2009
7577435Method and system for mobile communications
When a network pages the temporary user mobile identifier of a mobile station, the mobile station sends a response to the network. Next, the network checks the authenticity of the user using a ciphering key, corresponding to the temporary user mobile identifier and ...
08/18/2009
7574209Dynamically obtaining neighborhood information
Obtaining neighborhood information for a cell includes establishing the presence of a mobile node in a first cell having a first cell site. A communication session for the mobile node is facilitated. Neighborhood information is determined in response to facilitating...
08/11/2009
7574210System for handover in BWA communication system and method thereof
Disclosed is a handover system in a BWA communication system. In the system, a serving BS broadcasts neighbor BS information including BS identifiers of a plurality of neighbor BSs and reference signal indices indicating reference signals used by the neighbor BSs, a...
08/11/2009
7574211Mobile communication terminal
In a mobile communication terminal, when a base station of a communication destination is switched from a base station having a first communication rate to a base station having a second communication rate higher than the first communication rate, a calculated remai...
08/11/2009
7570948Mobile station and base station
A mobile station that selects one of a plurality of base stations according to electric field strengths of signals transmitted on control channels corresponding to the plurality of base stations, and establishes first a link and then a call connection with the selec...
08/04/2009
7570949Automatic antenna selector switch
A shipboard communications system for providing RF communications between a ship and a communications satellite includes a modem, an antenna selector switch coupled to the modem and to a pair of directional antennas, a programmable controller for each antenna, and a...
08/04/2009
7570950Mobile communication system, mobile station and diversity handover branch control method
A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and maximum radio branch number of the mobile station, when the mobile stat...
08/04/2009
7567806Method and system to improve handover between mobile video networks and cells
A digital video broadcast network comprises a content provider and several transmitters. Each transmitter may transmit more than one signal, different signals having different frequencies, multiplexes and the like and relating to different network types. An integrat...
07/28/2009
7567807Apparatus and method for performing handoff with a mobile station having a smart antenna
Disclosed is a mobile station configured to perform soft, softer, and soft softer handoffs. The mobile station comprises a smart antenna module and a logic module which are configured to make use of signals that, up to now, have been categorized as noise, interferen...
07/28/2009
7567808Handover method used in a wireless communication system
A handover method used in a wireless communication system for handing over a mobile device from a first base station to a second base station is provided. Firstly, a first signal power between the mobile device and the first base station as well as a second signal p...
07/28/2009
7567809Preserving HTTP sessions in heterogeneous wireless environments
Wireless internet in the in-vehicle environment is an evolving reality that reflects the gradual convergence of wireless and internet technologies. The present invention provides an application layer system that makes wireless internet access adaptive to dynamically...
07/28/2009
7565145Handover messaging in an unlicensed mobile access telecommunications system
Methods and messages for performing handovers between an unlicensed mobile access network (UMAN) comprising a first radio access network and a second radio access network. URR (UMA radio resource) handover messages are exchanged between a mobile station (MS) and a U...
07/21/2009
7565144Method, system and mobile station for handing off communications from a cellular radio access network to an unlicensed mobile access network
A method, system and mobile station for handing off communications from a cellular radio access network, such as a code division multiple access (CDMA) radio access network, to an unlicensed mobile access network (UMAN) are provided. The handoff may be effected by a...
07/21/2009
7561880Radio controller, mobile communications system, and communications control method
A radio controller of a mobile communications system performing broadcasting or multicasting that transmits the same information to multiple cells is disclosed. The radio controller includes a control information comparison part configured to compare the control inf...
07/14/2009
7555298Queue prediction to reduce virtual handoff latency
In a high-rate packet data (HRPD) wireless communication network, an Access Terminal (AT) selects its serving cell, and additionally provides an advance indication of a pending cell selection. Upon receipt of the advance indication, the network directs data packets ...
06/30/2009
7546126Wireless base station neighbor discovery in a communication system, such as a system employing a short-range frequency hopping scheme
Disclosed embodiments include a method performed by a network access point, such as a short-range wireless communications switch or Bluetooth base station unit, to provide a neighbor list for neighboring short-range wireless communications switches or network access...
06/09/2009
7546124Support for handoffs in high rate packet data systems
The invention supports two types of handoffs. The first handoff is for an inter-AN cell selection where the source AN allows the AT to add a cell under the control of a different AN to its active set and then allows the AT to switch to the target AN. A bearer path i...
06/09/2009
7546125Enhancing user experience during handoffs in wireless communication
A method for performing a handoff for a mobile device from a first radio station to a second radio station. The method includes buffering a first media data set that is received through the first radio station. The method also includes cross-correlating a tail porti...
06/09/2009
7542765Method for handoff in mobile communication system
Disclosed is a handoff method connected with resource allocation in order to prevent QoS degradation, which may occur during or before/after a handoff on account of channel state change resulting from the mobility of a radio communication apparatus. To this end, a s...
06/02/2009
7539492System and method for providing a handoff leg associated with a preexisting leg in a network environment
A method for facilitating communications between wireless networks is provided that includes communicating with a mobile station and transferring a communication session from a first wireless link to a second wireless link. The mobile station is operable to negotiat...
05/26/2009
7539493Method and apparatus for indicating preferred layer information in multimedia broadcast/multicast service (MBMS)
A method is disclosed for transferring preferred frequency information in a mobile communication system which establishes a preferred frequency layer and a non-preferred frequency layer for a Multimedia Broadcast/Multicast Service (MBMS) service. The method involves...
05/26/2009
7529546Method and apparatus for removing a sector from an active set
Communication on a sector in a mobile station's active set is eliminated in order to test whether such elimination has a sufficiently adverse impact on RF communication with the mobile station on the remaining sectors in the active set. If it is determined that the ...
05/05/2009
7519368System and method for performing network re-entry in a communication system
In a communication system, a mobile station (MS) sends a target base station (BS) a notification indicating that it is to perform a handover from a serving BS to the target BS. The target BS transmits to the MS handover process optimization information indicating a ...
04/14/2009
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