Patent application number | Description | Published |
20090082007 | Method to Decentralize the Counting of Abnormal Call Release Events on a Per Cell Base in Digital Cellular Communication Networks - In one aspect, a method to collect performance measurements a digital cellular communication network is provided. Radio links of the active set are set up both inside the serving cell and towards one or more adjacent cells belonging to adjacent clusters controlled by respective radio network controllers. Controllers are connected to one another in order to act either as master of the active set in communication with the core network or slave for managing directly controlled radio resources and executing requests from the master devoted to radio link set up or deletion. The master radio controller, when calling a slave for requesting a specific radio link deletion from the active set, also sends to it some information about the cause of that deletion. The slave radio controller when receives the cause information increments a performance measurement counter associated to the specific cause and to the specific cell the radio link deletion is requested for. Operatively, the 3GPP RNSAP Radio Link Deletion Request message is upgraded to include an Element used to specify the “Cause” of the deletion. Periodically the network operator recovers the counters to associate the specific radio link failure events to the specific cells. | 03-26-2009 |
20100034087 | Controlling congestion detection in hsdpa systems - A method controls transport network layer congestion detection in HSDPA systems. The method involves detecting, at an SRNC, a condition requiring the disabling, at a Node B, of measurements performed on certain fields of a data frame for detecting congestion for certain packet flows; sending, from the SRNC to the Node B, a command for disabling said measurements for the concerned packet flows; and resetting, at the Node B, any measurement performed until reception of said command for disabling the congestion detection. | 02-11-2010 |
Patent application number | Description | Published |
20120129497 | Informing a User Equipment of a Cell and a Radio Base Station Serving the Cell About Access Rights Granted to the User Equipment - Components of a cellular communication system and methods for operating components of a cellular communication system are disclosed, wherein an access right indication is sent from a network element to a base station which access right indication defines limited access rights of a user equipment to access the radio access network to which the base station belongs. According to embodiments, the access right indication is an access right update updating already defined access rights of the user equipment to access the radio access network. | 05-24-2012 |
20120250513 | Mobile Network Optimization - It is described a mobile network with a first network node and a second network node, the mobile network providing a user plane for transporting transmission packets which contain user data, and a further network layer plane different from the user plane. A method of operating the first network node includes sending an information element to the second network node via a network layer protocol of the further network layer plane wherein the information element indicates optimizing capabilities of the first network node or of a other network node of the mobile network of processing an optimized transmission packet. A method of operating a second network node includes receiving the information element from the first network node via a network layer protocol of the further network layer plane, and processing the information element. | 10-04-2012 |
20130005328 | Handling Closed Subscriber Group Lists - A core network receives in an uplink message a first list of closed subscriber groups (CSGs) located within one gateway domain to which mobility is possible for a user equipment UE. The core network creates a third list by checking the first list received in the uplink message against a second list which is the UE's allowed CSG list, and sends the third list downlink to at least one of a serving gateway of the UE or a serving access node of the UE. In one embodiment the first list consists of all CSGs within a domain of the respective serving gateway/access node; and in another embodiment it consists of all neighbor closed subscriber group cells of the respective serving gateway/access node which sent the uplink message to the core network. In different embodiments the third list is a whitelist or a blacklist. | 01-03-2013 |
20140308959 | Methods and Apparatus for Handover Management - Systems and techniques for handover management between macro base stations and home base stations. Upon receiving a measurement report from a user device including a physical cell identity and frequency pair associated with a candidate handover home base station, a macro base station transmits a message to a home base station gateway to obtain cell global identifiers of specified home base stations, which may include home base stations associated with a list of physical cell identifiers and frequency pairs including the pair received in the measurement report. Upon receiving the cell global identifiers, the base station identifies a handover target and performs signaling to the user device to direct handover to the target. | 10-16-2014 |
20140335861 | Methods and Apparatus for Handover Management - Systems and techniques for handover management. A serving base station identifies one more candidate base stations as candidates to receive a handover of a user device and selects a target base station to receive the access request from the user device. The serving base station prepares the candidate base stations to receive the user device's access request and sends a connection reestablishment command to the user device, identifying the target base station by physical cell identifier and frequency. The user device synchronizes to the target base station identified by the physical cell identifier and frequency and performs a connection reestablishment request procedure with respect to the target base station. | 11-13-2014 |