Patent application number | Description | Published |
20120258713 | Multimode Base Station - A method of controlling admission of a user equipment to a cell of a multi-mode base station, being a base station arranged to operate as a plurality of cells, the plurality of cells comprising at least a first cell and a second cell, and the method comprising: determining information relating to the first cell, and controlling admission of a user equipment to the second cell in dependence on the information relating to the first cell. | 10-11-2012 |
20120264433 | COMMUNICATION BETWEEN A USER EQUIPMENT AND A BASE STATION - Method, multi-mode base station and computer program product for controlling communication between a user equipment (UE) and the multi-mode base station, the multi-mode base station being arranged to operate as a plurality of cells, the plurality of cells comprising a first cell using a first radio access technology and a second cell using a second radio access technology. The UE is operating in the first cell. Operating conditions of the first and second cells are monitored, and based on the monitored operating conditions of the first and second cells, it is determined that making a handover of the UE to the second cell would provide a performance improvement. In response to determining that making a handover of the UE to the second cell would provide a performance improvement, a handover is made of the UE to the second cell, thereby providing the performance improvement. | 10-18-2012 |
20120295603 | Accessing a Base Station - Method, base station and computer program product for controlling access to the base station, the base station being arranged to serve a zone, the zone comprising a first cell implementing an access mode as one of an open access mode, a hybrid access mode, and a closed access mode. Operating conditions of the zone served by the base station are determined and then the access mode of the first cell is controlled based on the determined operating conditions of the zone served by the base station. | 11-22-2012 |
20130165105 | METHOD AND DEVICE IN A COMMUNICATION NETWORK - There is provided a method of method of estimating a quality of a signal, the method in a first device comprising measuring a signal transmitted from a second device to a third device; determining a value of a metric from an autocorrelation function of the measured signal; and determining an estimate of the quality of the signal from the determined metric. | 06-27-2013 |
20130343372 | FEMTOCELL BASE STATION SYNCHRONIZATION - There is provided a method of refining a timing estimate used to synchronize a femtocell base station to a macrocell base station. The method in the femtocell base station comprises estimating a multipath power delay profile from signals received from the macrocell base station, detecting the earliest path in the multipath power delay profile and determining a correction to the timing estimate from the earliest path detected in the multipath power delay profile. | 12-26-2013 |
20130344878 | FEMTOCELL BASE STATION SYNCHRONIZATION - There is provided a method of determining a timing estimate for use in synchronizing a femtocell base station to a macrocell base station, the method in the femtocell base station comprising determining an uplink timing estimate from a signal transmitted from a mobile device to the macrocell base station, the mobile device being served by the macrocell base station; determining a downlink timing estimate from a signal transmitted from the macrocell base station; and determining a timing estimate for use in synchronizing the femtocell base station to the macrocell base station from the downlink timing estimate and the uplink timing estimate. | 12-26-2013 |
Patent application number | Description | Published |
20100035617 | Communication Network - There is provided a method of operating a communication network comprising at least one macrocellular base station, and a plurality of femtocell base stations that are within the coverage area of the at least one macrocellular base station, the method comprising providing a proxy in a signalling path between the at least one macrocellular base station and the plurality of femtocell base stations, providing unidirectional signalling for the support of mobility and interference control from the at least one macrocellular base station to the proxy; and providing signalling for the support of mobility and interference control between the proxy and the plurality of femtocell base stations. | 02-11-2010 |
20100285795 | Methods and Devices for Reducing Interference in an Uplink - There is provided a method of operating a communication system, the communication system comprising at least a macrocell base station and a femtocell base station that is within the coverage area of the macrocell base station, the method comprising providing an indication of the noise rise or interference at the macrocell base station to the femtocell base station; and the femtocell base station adjusting a maximum permitted transmission power based on the indication. | 11-11-2010 |
20130231154 | METHODS AND DEVICES FOR REDUCING INTERFERENCE IN AN UPLINK - A method of operating a communication system such that the communication system comprises at least a macrocell base station and a femtocell base station that is within the coverage area of the macrocell base station. The communication system is configured to provide an indication of the noise rise or interference at the macrocell base station to the femtocell base station and the femtocell base station, in response thereto, adjusts a maximum permitted transmission power based on the indication. | 09-05-2013 |
Patent application number | Description | Published |
20080227443 | Retransmission in a Cellular Communication System - An apparatus comprises a detection processor ( | 09-18-2008 |
20080256411 | Retransmission in a Cellular Communication System - A base station ( | 10-16-2008 |
20080311919 | USE OF THE PHYSICAL UPLINK CONTROL CHANNEL IN A 3RD GENERATION PARTNERSHIP PROJECT COMMUNICATION SYSTEM | 12-18-2008 |
20090305715 | CHANNEL QUALITY REPORTING IN A WIRELESS COMMUNICATION SYSTEM - A wireless communication system comprises a scheduler for scheduling air interface data for a plurality of user equipments. A control channel scheduler estimates a scheduling time for a scheduling of air interface data to a first user equipment of the plurality of user equipments in response to a current scheduling metric for the first user equipment and a reporting processor generates a channel quality reporting request for the user equipment in response to the scheduling time. The channel quality reporting request is transmitted to the user equipment which proceeds to provide channel quality reports in accordance with the request. The approach may improve performance in a wireless communication system by reducing channel reporting resource requirements while still providing channel quality information when needed. The invention may be particularly suitable for a Long Term Evolution 3 | 12-10-2009 |
20100029288 | UPLINK SPATIAL DIVISION MULTIPLE ACCESS (SDMA) USER PAIRING AND SCHEDULING - A method, system and communication network for transmitting information signals via uplink (UL) collaborative SDMA, in a wireless communication system. Base station receiver estimates a channel gain associated with the transmission path(s) of each user and keeps a matrix of normalized covariance, between users. Based on the estimated channel gain and the normalized covariance, ULS utility is able to compute channel capacity. Based on capacity estimates of (1) the multiplexed user signals and (2) the individual user signals, signals are either multiplexed for UL SDMA or are transmitted individually. An optimal selection of multiplexed signals may be based upon: (1) a cross user interface measurement; and (2) a selection mechanism based on eigen-decomposition techniques. The ULS utility enables a UL scheduler to pair information signals with clear spatial distinction and minimal correlation, based on capacity evaluations. | 02-04-2010 |
20130114543 | USE OF THE PHYSICAL UPLINK CONTROL CHANNEL IN A 3RD GENERATION PARTNERSHIP PROJECT COMMUNICATION SYSTEM | 05-09-2013 |