Patent application number | Description | Published |
20090310492 | Method and Apparatus for Testing Mobile Terminals in an OFDM System - The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits the resources used for transmission into contiguous unities in the frequency domain such that one or more of said unities comprise resources allocated to one or more mobile terminals under test, and at least one of said unities comprise resources allocated to virtual users. | 12-17-2009 |
20100165847 | Method and Apparatus for Robust Transmission of Control Information in a Wireless Communication Network - A base station includes transmitter and associated processing circuits. The transmitter circuits are configured to transmit control information and data traffic to mobile terminals in repeating transmission intervals, each interval having defined control and data portions. The processing circuits are configured to dynamically determine that the control portion has insufficient resources for transmitting control information to one or more of the mobile terminals, and, in response, at least temporarily transmit control information in the data portion, rather than in the control portion, for a selected one or more of the mobile terminals. Correspondingly, a mobile terminal is configured to selectively search for and decode control information in the data portion of one or more transmission intervals, rather than in the control portion. | 07-01-2010 |
20100216473 | Methods and Arrangements in a Telecommunication System - The present invention relates to exchanging a cell-specific parameter such as the A-MPR, comprising information related to a required additional maximum power reduction of a UE transmitter between networks nodes. The networks nodes may be radio base stations or other network nodes such as radio network controllers or core network nodes exemplified by access gateways (aGWs). By exchanging this cell-specific parameter with information of the required additional maximum power reduction between the network nodes, the cell-specific parameter is provided to the radio base station of the serving cell which implies that the serving cell can send the cell-specific parameter of the target cell to the UE prior to the handover from the serving cell to the target cell. This result in that the UE can start transmission to the target cell with the correct cell-specific parameter and the out-of-band emission requirements can be fulfilled in the target cell. | 08-26-2010 |
20110026415 | Interference-Aware Resource Assignment in Communication Systems - Methods and apparatus in a frequency division duplex, orthogonal frequency division multiplex communication system assign resources, including the number, frequency position, and coding, in a subframe of a downlink to a user equipment (UE) based on parameters that influence the robustness against UE self-induced interference when the UE is scheduled for uplink transmission in that subframe. | 02-03-2011 |
20110051829 | Method and Arrangement in a Cellular Communications System - The present invention relates to the area of wireless communication, and especially to a method and an arrangement for transmission output power control in a cellular telecommunications network. An improved transmission output power control is achieved by adapting a pre-defined power mask to a signal transmission characteristic of the signal transmission and applying the adapted power mask to a sub-frame or an OFDM symbol. The present invention could be implemented in a network node such as an eNodeB or in a user equipment. | 03-03-2011 |
20110103243 | SIGNALING FOR FLEXIBLE CARRIER AGGREGATION - Flexible carrier aggregation is provided for a radio communications system. A capability is determined to communicate over a radio interface using multiple radio frequency component carriers. Each of the multiple component carriers is configurable with one or more control channels in a first mode of operation and with no control channels in a second mode of operation. Configuration information for one of the multiple radio frequency component carriers is signaled to indicate at least one of the component carriers is configured to operate in a selected one of the first mode of operation and the second mode of operation so that a network radio node and a user equipment radio node can communicate using the selected mode of operation. | 05-05-2011 |
20110243111 | Timing of Uplink Transmissions in a Multi-Carrier Communication System - A terminal with transmitter and receiver operates in a multi-carrier communication system and receives at least two downlink carriers. One or more timing advance commands are received, each associated with a group of one or more uplink carriers, each group being associated with one or more of the received downlink carriers. For each downlink carrier associated with one of the groups of uplink carriers, one is selected as a reference downlink carrier; the reference downlink carrier timing is ascertained; and a transmission time period is ascertained based on the timing of the downlink reference carrier and an offset specified by the timing advance command associated with the group of uplink carriers. The transmission time period comprises a start time and a stop time. Transmission is initiated at an earliest transmission start time of the ascertained transmission time periods and is ceased at a latest ascertained stop time. | 10-06-2011 |
20110250848 | Method and Apparatus for Channel Quality Reporting in a Wireless Communication System - According to one aspect, the present invention advantageously provides a method and apparatus that increase communications throughput by manipulating the order or manner in which CQI values are reported in a multi-rank CQI report that constrains one or more such values according to reporting order. As a non-limiting example, the present invention provides that the reporting order used for reporting multiple CQI values is chosen to eliminate or at least reduce under-reporting and over-reporting errors arising from the use of differential reporting formats for one or more of the reported CQI values. Additionally, the present invention provides for selection between single-rank or multi-rank CQI reporting, based on determining which one corresponds to the highest channel capacity, in view of the differential reporting constraints. | 10-13-2011 |
20110250857 | Interference Avoidance in White Space Communication Systems - Mobile communication system equipment avoids interfering with another transmitter's operation. Sensing information indicating whether the other transmitter's signal has been detected is received from remote sensors, wherein each of the remote sensors is situated at a respective one of two or more sensor locations. The sensing information and information about the sensor locations is used to ascertain one or more exclusion boundaries needed to avoid interfering with the other transmitter's use of the spectral resource. Beamforming parameters are ascertained that will enable the main node to transmit within one or more predefined geographical areas except for any portion of a predefined area located on a far side of the one or more exclusion boundaries. Two or more adjusted signals are produced as a function of the beamforming parameters and one or more signals to be transmitted. The adjusted signals are transmitted from respective ones of two or more antennas. | 10-13-2011 |
20110274092 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION SYSTEM - Method and arrangement in a base station for scheduling physical resources in a transmission bandwidth to a user equipment served by the base station. The physical resources may be physical channels or radio resource blocks. Some physical resources within the transmission bandwidth are subjected to a performance requirement power restriction value. The method comprises scheduling physical resources based on the performance requirement power restriction value of the physical resources to be scheduled. Also, a method and arrangement in a user equipment for assisting a base station in scheduling physical resources in a transmission bandwidth to the user equipment is described. | 11-10-2011 |
20120058772 | Methods and Arrangements in Cellular Communication Systems - The disclosure relates to methods and arrangements wherein a user equipment (UE) supporting a first frequency band H | 03-08-2012 |
20120076056 | OFDMA Scheduling Method for Avoiding Leakage at the Mobile Stations - The present invention relates to scheduling of uplink and downlink resources between mobile terminals ( | 03-29-2012 |
20120088538 | Transmit Power Control of Channels Transmitted in Different Frequency Regions - A mobile terminal transmits one or more first communication channels in a first frequency region and one or more second communication channels in a second frequency region. With the channels experiencing different fading conditions, the terminal receives separate transmit power control (TPC) commands. Instead of simply adjusting the transmit power of the channels as commanded, the terminal computes a power offset indicative of the difference between the commanded power of one or more of the first channels and the commanded power of one or more of the second channels. The terminal then selectively performs transmit power control of the first and second channels on either an independent basis, according to the respective TPC commands, or a joint basis, depending on whether the computed power offset falls outside of a pre-determined range of values. In doing so, the terminal allows independent control of channels, while also mitigating self-interference and/or spectral emissions. | 04-12-2012 |
20120096168 | Control Circuit and Method for Allocating Orthogonal Sequences - A method for allocating orthogonal sequences to user equipment devices, UEs, of a group sharing a channel of a telecommunication system is disclosed. The method comprises determining which UE of the group having largest transmission resource assigned for a physical up-link shared channel, PUSCH; determining a first orthogonal sequence of the UE of the group having largest transmission resource assigned; determining a second sequence that equals a quadrature phase offset of the first orthogonal sequence; reserving said second sequence when allocating sequences to remaining UEs of the group by avoiding the second sequence as long as there are other orthogonal sequences available. A control circuitry for a network node is also disclosed. | 04-19-2012 |
20140105149 | Method and a First Radio Communication Node for Scheduling a Data Transmission - A method in a first radio communication node ( | 04-17-2014 |
20140126498 | FLEXIBLE SPECTRUM SUPPORT IN CELLULAR WIRELESS COMMUNICATIONS - Systems and methods for flexible spectrum, or bandwidth, support in a cellular communications network are disclosed. In one embodiment, a base station for a cellular communications network is configured to transmit a non-standardized bandwidth carrier and information that identifies a standardized bandwidth and additional information that, together with the information that identifies the standardized bandwidth, defines a non-standardized bandwidth of the non-standardized bandwidth carrier. In one embodiment, the additional information defines a bandwidth adjustment for the standardized bandwidth that defines the non-standardized bandwidth. In one embodiment, the bandwidth adjustment is a symmetric bandwidth restriction. In another embodiment, the bandwidth adjustment is an asymmetric bandwidth restriction. In yet another embodiment, the bandwidth adjustment is a symmetric bandwidth expansion. In yet another embodiment, the bandwidth adjustment is an asymmetric bandwidth expansion. | 05-08-2014 |
20140140290 | Release-Independent Modifications of Network Parameters | 05-22-2014 |