Patent application number | Description | Published |
20090017822 | METHOD OF RELEASING LINK CONNECTION AFTER HANDOVER IN MULTI-MODE MOBILE TERMINAL AND TERMINAL THEREOF - The present invention relates to a method of releasing a network connection with a link of a medium access control layer previously accessed before performing a handover to a heterogeneous network in a mobile terminal configured with a multi-mode (e.g., interface between IEEE802.16 and IEEE802.il, interface between IEEE802.16 and 3GPP/3GPP2 or interface between IEEE802.il and 3gPP/3GPP2). In a multi-mode mobile terminal, the present invention includes the steps of creating a connection with a new link, generating a trigger event indicating a connection creation with the new link, and generating a trigger event instructing a connection release from an old link. | 01-15-2009 |
20090046657 | METHOD OF TRANSMITTING MESSAGES IN COMMUNICATION NETWORKS - A method of transmitting messages for acquisition of information related to a specific network entity or a link network during network selection in a mobile terminal is disclosed. The method of transmitting messages for acquisition of information related to a network entity or a link network during network selection in a mobile terminal comprises generating, in an upper management entity, a first primitive for requesting information related to the network entity or the link network through an access point (AP), delivering the first primitive to a media access control (MAC) layer, transmitting a first request message including contents of the first primitive to the access point to request the information, receiving a second response message from the access point, the second response message including information related to the specific network entity or the link network, and delivering a third primitive from the MAC layer to the upper management entity, the third primitive including contents of the second response message. | 02-19-2009 |
20090046682 | METHOD FOR TRANSMITTING INFORMATION IN WIRELESS LOCAL AREA NETWORK SYSTEM - A method for transmitting information of a network interworking with a wireless LAN (802.11, Wi-Fi) network or EMID (ESS MAC ID) provided from an EMID server to a wireless user equipment if the wireless user equipment accesses the wireless LAN network is disclosed. A wireless communication system which performs communication using a plurality of subcarriers includes at least one access point receiving messages from at least one wireless user equipment and communicating with another access point through a distribution system, and at least one interworking information broker receiving information request message of subscriber service provider network (SSPN) through interface with the at least one access point and acquiring response information corresponding to the information request message through interface with a network entity which includes information of the SSPN, the information request message of the SSPN being transmitted from the wireless user equipment to the at least one access point. | 02-19-2009 |
20090137248 | METHOD OF EXECUTING SCANNING IN BROADBAND WIRELESS ACCESS SYSTEM - The primitives between an upper management layer and the MAC layer within a mobile station and a base station are defined in order to specify and clarify the operations within the protocol stack layers in a broadband wireless access system to allow a mobile station to perform scanning procedures. Media Independent Handover (MIH) procedures can be achieved because the NCMS and MIH layer can communicate through use of these primitives. | 05-28-2009 |
20090196228 | METHOD OF CONNECTING TO NETWORK IN BROADBAND WIRELESS ACCESS SYSTEM - The primitives between an upper management layer and the MAC layer within a mobile station and a base station are defined in order to specify and clarify the operations within the protocol stack layers in a broadband wireless access system to allow a mobile station to perform a method of connecting to the network. Media Independent Handover (MIH) procedures can be achieved because the NCMS and MIH layer can communicate through use of these primitives. | 08-06-2009 |
20090201882 | METHOD OF EXECUTING SCANNING IN BROADBAND WIRELESS ACCESS SYSTEM - The primitives between an upper management layer and the MAC layer within a mobile station and a base station are defined in order to specify and clarify the operations within the protocol stack layers in a broadband wireless access system to allow a mobile station to perform scanning procedures. Media Independent Handover (MIH) procedures can be achieved because the NCMS and MIH layer can communicate through use of these primitives. | 08-13-2009 |
20090252120 | METHOD OF COMMUNICATION SUPPORTING MEDIA INDEPENDENT HANDOVER - The present invention relates to performing handover of a mobile terminal to a network. Preferably, the present invention generates a first heterogeneous protocol message from a heterogeneous network handover module to a medium access control (MAC) of the mobile terminal, wherein the heterogeneous network handover module is configured to provide convergence of information from at least one network interface module associated with one of a homogeneous and heterogeneous network into a unified presentation. A management request associated with a handover process is then transmitted to a serving network, wherein the management request comprises the first heterogeneous protocol message. Accordingly, messages can be remotely exchanged via a radio section between heterogeneous network handover modules of a mobile terminal and a serving network. Therefore, messages are transferred faster and media independent handover is performed more quickly. | 10-08-2009 |
20100048213 | METHOD OF SUPPORTING HANDOVER IN A MULTI-MODE MOBILE STATION - A method of discovering at least one of a homogeneous and a heterogeneous network module to perform handover with in a wireless mobile communication network is disclosed. More specifically, the method includes establishing a network handover module for converging information from at least one network interface module associated with at least one of a homogeneous and a heterogeneous network handover module into a unified presentation and transmitting a broadcast request message from a mobile station (MS) to a source point of attachment (PoA) which transmits the broadcast request message to at least one interface module to identify whether the at least one interface module supports at least one of the homogeneous and the heterogeneous network handover module and a capability of the at least one of the homogeneous and the heterogeneous network handover module. The method further includes initiating a timer for a specified time period when the broadcast request message is transmitted and receiving at least one response message from the at least one interface module via the source PoA prior to expiration of the timer, wherein the response message indicates that the at least one interface module supports at least one of the homogeneous and the heterogeneous network handover module and the capability of the at least one of the homogeneous and the heterogeneous network handover module. | 02-25-2010 |
20100061336 | METHOD OF TRANSMITTING AND RECEIVING CONTROL INFORMATION OF MULTIMODE MOBILE TERMINAL - A multi-mode mobile subscriber station (MSS) composed of several interfaces, and a method for acquiring/updating information in the case of a handover between heterogeneous networks are disclosed. A method for transmitting/receiving control information of a multi-mode mobile subscriber station (MSS) including at least two interfaces, includes: a) requesting first control information, associated with a new access point detected by a link scanning, from a network entity for providing information associated with a specific network; b) acquiring the requested first control information and second control information supplied from the new access point; and c) performing a connection to the new access point according to the first control information and the second control information. | 03-11-2010 |
20100189077 | SUPPORTING HANDOVER OF MOBILE TERMINAL - The present invention relates to supporting a handover of a mobile terminal. Preferably, the present invention performs a scan of a neighboring network different from a current network of the mobile terminal to determine the presence of an accessible link of the neighboring network for performing a handover, wherein the mobile terminal comprises a heterogeneous network handover module that is configured to provide convergence of information from at least one network interface module associated with one of a homogeneous and heterogeneous network into a unified presentation. An information message is then received from the neighboring network, wherein the information message comprises an information element associated with whether the neighboring network is capable of communicating with the heterogeneous network handover module of the mobile terminal. | 07-29-2010 |
20100261475 | METHOD OF INITIALIZING AND ESTABLISHING LINKS IN A MULTI-MODE MOBILE TERMINAL - A method of performing a handover with at least one of a homogeneous and heterogeneous network is disclosed. More specifically, the method comprises establishing a heterogeneous network handover module for converging information from the at least one network interface module associated with the at least one of a homogeneous and heterogeneous network into a unified presentation and receiving a message for powering on at least one network interface module in a mobile terminal from the heterogeneous network handover module. The method further comprises performing a power on operation for activating the at least one network interface module and transmitting a confirmation message for indicating a power on operation status to the heterogeneous network handover module. | 10-14-2010 |
20100278150 | METHOD FOR INTER RAT HANDOVER - A method for inter RAT handover is disclosed. The method for inter RAT handover comprises measuring cell quality of WiMAX neighbor cells from a user equipment of E-UTRAN and transmitting the measured result to an origin base station; and if RRC message is received from the origin base station, the RRC message including WiMAX signal, pre-registering with a target WiMAX base station using tunneling based on second layer protocol. Therefore, the user equipment can continue to receive a service with maintaining current service quality even though the user equipment moves to a heterogeneous network. In addition, it is possible to reduce the time required for the user equipment to perform handover to the target base station. Moreover, if there is a failure of a radio link when the user equipment performs handover, it is possible to enable fast recovery. | 11-04-2010 |
20110002305 | METHOD FOR PERFORMING INTER-RAT HANDOVER - An Inter-RAT handover method is disclosed. A method for supporting an Inter-RAT handover by an IEEE 802.16m MS includes performing, by the MS, pre-registration in an Inter-RAT target BS using a tunneling, if a channel quality of an Inter-RAT neighbor cell is higher than a pre-registration threshold, and transmitting a handover request message for a handover to the target BS to a serving BS, if a channel quality of the neighbor cell is equal to or higher than a handover threshold during a time duration in a scanning of the neighbor cell and a channel quality of the target BS is equal to or higher than that of the neighbor cell. This handover method reduces a time required for a handover from an IEEE 802.16m network to a Non-802.16m network, provides a seamless service, supports a rapid recovery in case of a radio link failure, and increases handover reliability. | 01-06-2011 |
20110032909 | METHOD FOR HANDOVER WITH CONSIDERATION OF LOAD STATUS OF CELLS - A method for a handover with consideration of load status of cells is disclosed. The method for intra handover with consideration of load status of cells by a mobile station in a wireless communication system includes receiving a neighbor advertisement (MOB-NBR-ADV) message including load status information of neighbor cells from a serving base station, and performing intra handover according to the load status information of neighbor cells if there is at least a neighbor cell of which channel quality is equal to or higher than a handover threshold for a time duration among neighbor cells in an intra network. | 02-10-2011 |
20110119549 | METHOD OF ASSOCIATING AUTOMATIC REPEAT REQUEST WITH HYBRID AUTOMATIC REPEAT REQUEST - A method of associating ARQ with HARQ is disclosed. The method includes constructing a plurality of coding blocks using an MPDU received from an ARQ entity of a transmitter, transmitting each of the coding blocks to a receiver according to an HARQ operation, discontinuing the coding block transmission, when transmission of a coding block is failed, transmitting an error message indicating a number of the failed coding block to the ARQ entity of the transmitter, receiving ARQ blocks corresponding to the failed coding block from the ARQ entity of the transmitter, constructing at least one coding block using the received ARQ blocks, and retransmitting the at least one coding block to the receiver according to the operation. | 05-19-2011 |
20110134886 | METHOD OF EXECUTING HANDOVER IN BROADBAND WIRELESS ACCESS SYSTEM - The primitives between an upper management layer and the MAC layer within a mobile station and a base station are defined in order to specify and clarify the operations within the protocol stack layers in a broadband wireless access system to allow a mobile station to execute handover. Media Independent Handover (MIH) procedures can be achieved because the NCMS and MIH layer can communicate through use of these primitives. | 06-09-2011 |
20110212731 | METHOD OF RESOURCE RESERVATION REQUEST AND RESOURCE RESERVATION IN WIRELESS COMMUNICATION SYSTEM - A method of resource reservation request and resource reservation in a wireless communication system is disclosed. A method of resource reservation request of a mobile station in a wireless communication system with femto cells comprises transmitting a resource reservation request message to a macro base station to request a femto cell base station not to use resource used by the mobile station if interference from the femto cell base station is over a threshold; and receiving a resource reservation response message from a macro base station. | 09-01-2011 |
20120064843 | DATA COMMUNICATION DEVICE - A communication device as disclosed herein may include a body, an antenna assembly provided in the body, and configured to transmit or receive wireless signals, and a circuit board connected to the antenna assembly and configured to process the wireless signals. The antenna assembly may include a carrier having at least one region that is dimensioned to be farther away from the body than other portions thereof, and a radiator provided on the at least one dimensioned region of the carrier and configured to receive or radiate electromagnetic waves corresponding to the wireless signals. The radiator may be positioned on the dimensioned region of the carrier such that a specific absorption rate (SAR) due to the antenna assembly is reduced. | 03-15-2012 |