Patent application number | Description | Published |
20120094672 | CELL EDGE COVERAGE HOLE DETECTION IN CELLEULAR WIRELESS NETWORKS - A cell edge coverage hole detection method based on collecting (S | 04-19-2012 |
20120127876 | Cell Edge Coverage Hole Detection in Cellular Wireless Networks - A cell edge coverage hole detection method for a cellular wireless communication system such as an LTE system. A coverage hole in a cell edge region will cause radio link failures, RLF, which are difficult to distinguish from those caused by handover issues. The method collects (S | 05-24-2012 |
20120219082 | MIMO Wireless Communication Systems - A wireless communication system is described which includes a transmitter operable to transmit a transmitted signal, the transmitter having one or more transmitting antennae, a receiver operable to receive a received signal, the receiver having one or more receiving antennae, wherein lattice reduction is used in obtaining, at the receiver, an estimate of the transmitted signal based on the received signal, characterized in that the lattice reduction utilises a lattice reduction matrix, a decomposed representation of which is transmitted between the transmitter and the receiver. | 08-30-2012 |
20130005385 | RE-SELECTING NETWORK PARAMETERS IN A CELLULAR WIRELESS NETWORK - A value of a parameter which affects network performance or operation of a cell in a wireless network is re-selected by: storing an indicator, representing the performance and/or operation of the network, and a criterion to be met by the indicator when the value of the parameter has been re-selected; receiving data relating to the performance or operation of the network, and deriving therefrom statistical data relating to said indicator; storing that statistical data; when the value of the parameter is to be re-selected, obtaining at least two different solutions for the value of the parameter to be re-selected; using said statistical data to determine which of the solutions obtained most satisfactorily meets said criterion for the indicator; and selecting that solution for implementation on the network. | 01-03-2013 |
20130130690 | HANDOVER PROCEDURES AND SIGNALLING FOR PLANNED CELL OUTAGE IN WIRELESS CELLULAR NETWORKS - A method of controlling handover in wireless cellular networks of user equipment in a first cell unit which is to be disabled to a second cell unit which is to provide extended coverage for the, or part of the, first cell unit, where the cell unit of the first and second cell units is a cell or a cell sector, including selecting a part of the signal bandwidth or time-frequency resource units, previously designated for use in normal operation by the second cell unit, which does not overlap with that to be used by the first cell unit during the handover; and designating the selected part for use by the user equipment to be handed over from the first cell unit. | 05-23-2013 |
20130294272 | DEACTIVATION OF MICRO CELLS IN CELLULAR WIRELESS NETWORKS - A cell ranking algorithm for power saving in a cellular wireless network having a heterogeneous network structure of macro and micro cells. The algorithm determines when and which micro cells in the network can be deactivated, by which the power consumption of the network can be reduced. A micro cell (Micro d) having a traffic load below a threshold value is deactivated and its load is assigned to adjacent macro cells (Macro a, Macro b) acting as compensation cells. The proposed algorithm is based on the comprehensive consideration of factors that have influence on the power saving of the network and the balance between the traffic load (or quality of service) and the energy saving. | 11-07-2013 |
20130310048 | CELL ACTIVATION AND DEACTIVATION IN HETEROGENEOUS NETWORKS - An algorithm which considers the individual power consumption profiles for different types of base stations in a heterogeneous cellular network, and determines which base stations can be switched OFF in line with the traffic demand. The algorithm predicts ( | 11-21-2013 |
20140098793 | MIMO WIRELESS COMMUNICATION SYSTEM - In a LTE-based wireless communication system having neighbouring first and second cells a first user in the first cell may experience significant interference from downlink transmissions in the second cell. Such interference can be reduced by selecting a precoder for downlink transmission to a second user in the first cell which will result in reduced interference to the first user after the first user is handed-over to be served by the second cell. The method involves selecting, among a plurality of users in the first cell, the second user to receive the precoded downlink transmissions using the selected precoder. The second user is chosen so as to satisfy a measure of suitability using the selected interference-reducing precoder. Taken together, the choice in the first cell of precoder and second user (UE | 04-10-2014 |