Posco ICT Co., Ltd. Patent applications |
Patent application number | Title | Published |
20130170425 | SYSTEM AND METHOD FOR MULTICAST AND BROADCAST SERVICE - The present invention relates to a system and method for providing MultiCast and BroadCast Service (MCBCS). According to the present invention, the MCBCS system and method supports session start and data path registration procedures, join and leave procedure for providing the MCBCS with static or dynamic multicast service schemes, and supports procedures for providing to mobile stations operating in idle mode. Accordingly, the present invention enables effectively implementing the MCBCS in a wireless communication system, particularly in WiMAX system, and provides the MCBCS according to the mobile stations operating in idle mode. | 07-04-2013 |
20110264775 | METHOD AND APPARATUS FOR SUPPORTING MIPV6 SERVICE IN A WIRELESS COMMUNICATION NETWORK - A method and apparatus for supporting a Mobile Internet Protocol (MIP) service based on Proxy Mobile IP (PMIP) in a portable Internet network is provided. In the method for supporting a MIP service based on PMIP in a portable Internet network including multiple subnets, a Portable Subscriber Station (PSS) performs an initial network entry procedure to a first subnet, and then acquires an IPv6 address that it uses as a Home of Address (HoA). A first Access Control Router (ACR) in the first subnet, configures an IPv6 address of the first ACR as a first Care of Address (CoA) of the PSS, and performs a MIPv6 registration procedure with a Home Agent (HA) using the HoA of the PSS and the first CoA. As a result, the PSS, even though it undergoes handover, has no need to perform a CoA acquisition procedure or its MIPv6-related procedure in the new subnet, making it possible to receive a seamless service without delay and packet loss for the ongoing service. | 10-27-2011 |
20100278091 | SYSTEM AND METHOD FOR MULTICAST AND BROADCAST SERVICE - The present invention relates to a system and method for providing Multicast and Broadcast Service (MCBCS). According to the present invention, the MCBCS system and method supports session start and data path registration procedures, join and leave procedure for providing the MCBCS with static or dynamic multicast service schemes, and supports procedures for providing to mobile stations operating in idle mode. Accordingly, the present invention enables effectively implementing the MCBCS in a wireless communication system, particularly in WiMAX system, and provides the MCBCS according to the mobile stations operating in idle mode. | 11-04-2010 |
20100260088 | SYSTEM AND METHOD FOR PROVIDING MULTICAST AND BROADCAST SERVICE IN COMMUNICATION SYSTEM - A system and method for providing a Multicast and Broadcast service (MBS) in a wireless communication system including base station, mobile station providing the MBS, and a plurality of relay stations for providing relay path between the base station and the mobile station, the base station receives Relay Station's Basic Capability Negotiation Request (SBC-REQ) messages transmitted from the relay stations, checks a capability information included in the SBC-REQ messages, allocates resources to the mobile station and a relay station among the relay stations based on the capability information, and provides the MBS to the mobile stations using the allocated resources. | 10-14-2010 |
20100208675 | APPARATUS AND METHOD FOR CONTROLLING DOWNLINK POWER IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method is provided for controlling power allocated to a burst of a downlink frame that a Base Station (BS) will transmit to a Mobile Station (MS) in a wireless communication system. The power control method includes comparing a measured Carrier to Interference and Noise Ratio (CINR) of the burst with a reference CINR of the burst, calculating a difference therebetween as a boosting power if the measured CINR is lower than the reference CINR, and calculating the difference as a deboosting power if the measured CINR is higher than the reference CINR; and setting a boosting power level so that a total boosting power including the boosting power or the deboosting power is set within a power range where a possible boosting range and a possible dynamic range cross each other. | 08-19-2010 |