| Patent application number | Description | Published |
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| 20100197230 | METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PROVIDING CIPHERING PROBLEM RECOVERY FOR UNACKNOWLEDGED MODE RADIO BEARER - An apparatus for providing ciphering problem detection may include a processor. The processor may be configured to receive an unacknowledged mode message, initiate operation of a timer based on receipt of the unacknowledged mode message, re-initiate timer operation in response to each subsequent unacknowledged mode message received prior to expiration of the timer, record a timer expiry event in response to the timer expiring prior to receipt of a subsequent unacknowledged mode message, and indicate a data reception error in response to receipt of the subsequent unacknowledged mode message after recordation of the timer expiry event. | 08-05-2010 |
| 20100220862 | Method, Apparatus And Computer Program Product For Providing Security During Handover Between A Packet-Switched Network And A Circuit-Switched Network - A method, apparatus and computer program product are provided to facilitate security in response to a handover from an initial network to a subsequent network, such as a handover between a packet-switched network and a circuit-switched network. The method, apparatus and computer program product may provide at least one security key for use in the subsequent network following handover from the initial network such that communications conducted via the subsequent network, including initial communications, may be secure. In order to provide at least one security key for use in the subsequent network, at least one security key of the initial network may be identified along with a nonce in response to a determination that a handover is to be made. The at least one security key of the subsequent network may then be determined based upon the at least one security key of the initial network and the nonce. | 09-02-2010 |
| 20100332933 | SYSTEMS, METHODS, AND APPARATUSES FOR CIPHERING ERROR DETECTION AND RECOVERY - Systems, methods, and apparatuses are provided for ciphering error detection and recovery. A method may include using a first set of one or more cipher input parameters to decipher ciphered data ciphered using a second set of one or more cipher input parameters. The method may further include comparing a value of at least a portion of the deciphered data to an expected value. The method may additionally include determining an occurrence of a ciphering error when the value of the at least a portion of the deciphered data is not equal to the expected value. The method may also include initiating a ciphering resynchronization procedure in response to the determination that a ciphering error occurred so as to resynchronize at least one of the first set of cipher input parameters with at least one of the second set of cipher input parameters. Corresponding systems and apparatuses are also provided. | 12-30-2010 |
| 20110274085 | Signaling radio bearer security handling for single radio voice call continuity operation - The exemplary embodiments of the invention provide at least a method, apparatus, and computer program to detect a single radio voice call continuity activation event indicating a handover of a user equipment between a packet switched domain and a circuit switched domain, consistent with a serving radio network subsystem relocation procedure, suspend control plane signaling radio bearers, reset the suspended signaling radio bearers, and resume the suspended signaling radio bearers in the domain handed over to, where resuming comprises protecting control plane signaling radio bearers of a domain handed over to using a same mapped security key that is used to cipher user plane radio access bearers in the domain handed over to. | 11-10-2011 |
| Patent application number | Description | Published |
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| 20090190545 | BROADBAND WIRELESS ACCESS SYSTEM, BASE STATION, AND NOTIFICATION METHOD BY THE BASE STATION - A base station includes a resources examination requesting unit that, when the base station is requested by a terminal to perform any of the following operations including addition, creation and change of a service flow, inquires of a radio resources management node whether the base station has enough radio resources to perform the operation on the service flow requested by the terminal; and a terminal notification unit that, when the base station lacks the radio resources, notifies the terminal of a base station that is selected from among neighboring base stations by the radio resources management node as a performer base station for performing the operation on the service flow requested by the terminal. The radio resources management node includes a resources examination responding unit that, when the requested target base station lacks the radio resources, selects a base station with enough radio resources to perform the operation on the service flow requested by the terminal from among the neighboring base stations as the performer base station. | 07-30-2009 |
| 20100093352 | System and Method Providing Notifycation of Selected Service in Multimedia Broadcast Multicast Service - The present invention aims to reduce the likelihood of congestion occurrence and allow performing appropriate radio resource management at the session start of an MBMS broadcast service, and provides a system of notifying a selected service in a Multimedia Broadcast Multicast Service standardized in 3GPP; the system comprises: a mobile device which, when MBMS Selected Services information of interest is available, provides notification of the MBMS Selected Services information; and a radio network controller which, upon receipt of the MBMS Selected Services information from the mobile device, stores and utilizes the same for radio resource management of a concerned MBMS Service. | 04-15-2010 |
| 20100267404 | CONNECTION NETWORK AND RADIO COMMUNICATION CONTROL METHOD - When an access process request signal for access to a connection network, from a terminal which exists in the same coverage area shared by a plurality of radio base stations, is received by one of the radio base stations, an access point base station is determined according to the resource information of the radio base stations by the connection network so as to transmit to the terminal, an access process base station modification request signal which requests that the access process request signal be transmitted to the radio base station that serves as the determined access point base station. | 10-21-2010 |
| 20100278341 | RADIO COMMUNICATION SYSTEM, RADIO COMMUNICATION APPARATUS, AND CIPHERING METHOD - The radio communication system of the present invention includes a radio access network ( | 11-04-2010 |
| 20100284535 | COMMUNICATIONS SYSTEM - A mobile communications system is proposed in which a two stage procedure is used for setting up Radio Bearers within a mobile communications device and UTRAN. In the first stage, both the mobile device and UTRAN perform ciphering based on an old Start value. In the second stage, the mobile device and UTRAN perform ciphering based on a new Start value. In this way, data communication using the Radio Bearers can start without waiting for the mobile device to confirm completion of the setup procedure. | 11-11-2010 |
