Patent application number | Description | Published |
20090185479 | Communication Systems - An uplink transmission method for use in a multi-hop communication system, the system comprising a mobile station (MS), a base station (BS) and one or more relay stations (RS), and the system providing two or more different communication paths extending between the mobile station and the base station, the mobile station being operable to transmit information indirectly to the base station along a series of links forming a first such communication path via one or more of the relay stations and also being operable to transmit information to the base station along one link or a series of links forming a second such communication path; the method comprising transmitting particular information from the mobile station along the first and the second communication paths; and combining the same particular information transmitted along the first and second communication paths in the base station. | 07-23-2009 |
20100002619 | COMMUNICATION SYSTEMS - A downlink transmission method for use in a multi-hop communication system, the system comprising a base station (BS), a mobile station (MS) and one or more relay stations (RS), and the system providing two or more different communication paths extending between the base station and the mobile station, the base station being operable to transmit information indirectly to the mobile station along a series of links forming a first such communication path via one or more of said relays and also being operable to transmit information to the mobile station along one link or a series of links forming a second such communication path; the method comprising transmitting particular information from the base station along the first and second communication paths and combining the same particular information transmitted along the first and second communication paths in the mobile station. | 01-07-2010 |
20100238853 | COMMUNICATION SYSTEMS - A path selection method for use in a communication system, the system comprising at least three communication apparatuses, a particular one of said apparatuses being operable to transmit and/or receive a communication signal along at least two different communication paths, each said path being either a single-link path extending from the particular apparatus to another said apparatus directly over a single communication link therebetween, or being a multi-link path extending from the particular apparatus to said other or another said apparatus indirectly via one or more intermediate said apparatuses over a plurality of consecutive such links link-by-link along the path, and at least one said path being such a multi-link path, the method comprising: for each link along at least the or one of the multi-link paths, obtaining link-suitability information indicative of the suitability of the link concerned for transmission and/or reception; for at least the or said one of the multi-link paths, combining the link-suitability information for each link of the path concerned so as to generate path-suitability information indicative of the suitability of the path concerned for transmission and/or reception; and selecting one of said paths for transmission and/or reception in dependence upon said path-suitability information. | 09-23-2010 |
20140233458 | AUTOMATIC AD-HOC NETWORK OF MOBILE DEVICES - A process for the automatic creation of ad-hoc networks between mobile devices in emergency and evacuation events. During an emergency or an evacuation event a command centre ( | 08-21-2014 |
Patent application number | Description | Published |
20090163210 | COMMUNICATIONS SYSTEMS - A method of, and apparatus for, reducing interference inflicted by a first wireless communications system on a second wireless communications system, and a method of, and apparatus for, interacting with a first wireless communications system. | 06-25-2009 |
20100128654 | Communication Systems - A transmission method for use in a multi-hop wireless communication system is provided. The method includes, for two apparatuses having overlapping transmission coverage areas, one of the two said apparatuses being an intermediate apparatus, transmitting a first transmission signal from a first one of those apparatuses in a first transmission window of a particular transmission interval and transmitting a second transmission signal from the second one of those apparatuses in a second transmission window of the particular transmission interval but not in said first transmission window, so that a communication apparatus located in the coverage areas of both the first and second apparatuses can receive said first transmission signal substantially without interference from said second transmission signal. | 05-27-2010 |
20140313041 | TRACKING EXPOSURE TO ELECTROMAGNETIC FIELDS - A method of tracking electromagnetic field, EMF, exposure of a user, comprising storing an aggregate EMF exposure value for the user, the aggregate EMF exposure value indicating EMF exposure due to use of one or more devices by the user; obtaining an estimate of EMF exposure associated with use of a particular one of the devices by the user; revising the aggregate EMF exposure value for the user in dependence upon the estimated EMF exposure; comparing the aggregate EMF exposure value to a threshold; and transmitting a signal related to use of the one or more devices if the aggregate EMF exposure value exceeds the threshold. | 10-23-2014 |
Patent application number | Description | Published |
20120088498 | COVERAGE HOLE DETECTION IN CELLULAR WIRELESS NETWORK - An automated coverage hole detection (CHD) method based on modifying the setting of a specific parameter of a UE in, e.g., an LTE-based cellular wireless network. Physical RLF events of the UEs, possibly indicative of a coverage hole, are monitored. At least some of the UEs in a given cell are selected for modifying their parameter setting. For UEs that do not have advanced logging and reporting capabilities upon the physical RLF, the existence of a coverage hole is detected by analyzing the correlation between the settings of a timer and the probability for the UE to transit to RRC_IDLE mode. The settings of the timer are systematically adjusted via eNB signalling to evaluate the characteristics of the observed RLFs. | 04-12-2012 |
20120184280 | COVERAGE HOLE COMPENSATION IN A CELLULAR WIRELESS NETWORK - A method for use in providing coverage for at least part of a coverage hole in a first cell or cell sector in a cellular wireless network, in which method a second cell or cell sector is selected, from a group of cells or cell sectors in the cellular wireless network which neighbour the first cell or cell sector, to adapt its coverage so as to cover at least part of the coverage hole in the first cell or cell sector, the method including carrying out an identification process using data relating to a cell or cell sector in the group to identify a cell or cell sector suitable for selection as the second cell or cell sector, the identification process being carried out on one or more cells or cell sectors in the group in turn. | 07-19-2012 |
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 |
20130121155 | METHOD AND APPARATUS FOR CHANGING BETWEEN TRANSMISSION STATES IN A COMMUNICATION SYSTEM - A controller for use in a wireless telecommunications system, the telecommunications system including one or more base stations, the one or more base stations being operable to wirelessly transmit data to user equipments in a first transmission state having a first capacity and in a second transmission state having a second, higher, capacity, the one or more base stations also being operable to change between transmission states in response to a transmission state change instruction from the controller, the controller comprising a transmission state management unit operable to apply a threshold mechanism to a value representing current data load, and if the threshold mechanism is satisfied, to issue a transmission state change instruction to change between the two transmission states, wherein a transition point of the threshold mechanism for a transition from the first to the second transmission state is set independently from a transition point for a transition from the second to the first transmission state. | 05-16-2013 |
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 |
20130148600 | CHANNEL STATE FEEDBACK FOR MULTI-CELL MIMO - A method is disclosed which is intended for use in multiple-input multiple-output wireless communication systems which have a plurality of adjacent cells (cell A, cell B, cell C, cell D), each containing one or more base stations which co-operatively transmit signals to, and receive signals transmitted from, a user equipment (UE). The user equipment is operable to feed back to the relevant base station(s) CSI reports relating to channel(s) between the relevant base station(s) and the users, the base stations are operable to adapt signals for transmission to users, based on the fed back channel state information. The method involves the UE being configured to select at least one cell to be the subject of a CSI report, and to send the CSI report with an indication of the subject cell(s). Feedback overhead on the uplink is reduced when many cells co-operate in transmission to the user equipment. | 06-13-2013 |
20130258890 | WIRELESS COMMUNICATION METHOD FOR MONITORING A COMMUNICATION INTERFACE BETWEEN ACCESS NODES - A wireless communication method and a wireless communication system includes a user equipment and a cooperating set of access nodes, each access node being operable to wirelessly exchange data and/or signalling information with the user equipment, the cooperating set participating directly or indirectly in the exchange with the user equipment in accordance with an exchange scheme, the cooperating set includes at least a first access node, the first access node being interconnected by an interface with a second access node. | 10-03-2013 |
20150181498 | Handover With Mobile Relays - A method to provide mobility support of UEs ( | 06-25-2015 |