Patent application number | Description | Published |
20100111139 | FREQUENCY HOPPING - A communications system is described in which user devices communicate with an associated base station. The user devices employ frequency hopping techniques to provide frequency diversity in their communications with the base station. Techniques are described for reducing collisions between the communications from the different user devices and for the efficient signalling of data defining the frequency hopping sequence to use. The inventions are particularly suitable for use in the uplink of the E-UTRA communications scheme. | 05-06-2010 |
20100120423 | CONTROL CHANNEL COMMUNICATIONS IN A CELLULAR COMMUNICATIONS NETWORK - A communications device in the form of a base station or communications node such as an eNodeB communications node selects one of a plurality of modulation and coding schemes for a control channel for a user communications device on the basis of the range which is specified by the location or channel condition within a cell of the user communications device. The selected modulation and coding scheme are identified to the user communications device separately from the control channel. In one example, the selected modulation and coding scheme is identified to the user communications device by way of a 2-bit code which may be provided within a MAC control block or appended to a MAC Data PDU. | 05-13-2010 |
20100150101 | DOWNLINK MULTIPLEXING - A communications system is provided in which persistently allocated resources used by a node to communicate data with another node of the communications system can be reallocated or new dynamic resources can be allocated to allow the node to communicate using both the persistently allocated resources and the dynamically allocated resources. The system does this without changing the structure of a control channel used to communicate resource allocations. | 06-17-2010 |
20120015661 | RELAY COMMUNICATION SYSTEM - A relay communications system is described in which a base station is able to dynamically vary or semi-statically vary the number of resource blocks used to carry relay control data within a transmitted sub-frame. Default resource blocks are used to include a first part of the control data and if additional control data is provided, then the first part of the control data identifies that there is additional control data and provides information to allow the additional data to be located within the sub-frame. | 01-19-2012 |
20130121283 | DOWNLINK MULTIPLEXING - A method performed by a node of a communications system includes storing allocation data defining persistently allocated resources for use in communicating data between the node and another node of the communications system within predetermined transmission time intervals, receiving control data relating to a dynamic allocation of resources to be used in a current transmission time interval, the received control data including modulation and coding data and HARQ (Hybrid Automatic Repeat Request) data, and determining if at least one of the modulation and coding data and the HARQ data in the received control data, includes a predefined bit pattern, and if the determining determines that the predefined bit pattern is present, then changing a setting of the stored allocation data defining the persistently allocated resources. | 05-16-2013 |
20130130682 | CELL SELECTION - A first base station for use in a communications network, the first base station having a first cell operating range, comprising: means for obtaining data relating to at least one characteristic of a signal transmitted by a second base station having a second cell operating range which is different from and overlaps with the first cell operating range of the first base station; means for determining a cell selection bias value for the first or second base station using the obtained data; and means for transmitting the determined cell selection bias value to a user device within the first cell operating range of the first base station. | 05-23-2013 |
20130176890 | COMMUNICATION SYSTEM - A relay communication system is described in which a relay node communicates with a base station using a sequence of frames, each frame comprising a plurality of sub-frames. The relay node has an energy saving mode in which it monitors for communications from said base station in at least one pre-determined sub-frame of each frame and does not monitor for communication from said base station in at least one other sub-frame of that frame. | 07-11-2013 |
20140314072 | COMMUNICATION SYSTEM - A communication system is disclosed in which each base station is configured to provide synchronisations signals in each radio frame of both a primary (backwards compatible) component carrier and a secondary (extension) component carrier. The location of the synchronisation signals in the radio frame of the primary (backwards compatible) component carrier are fixed whilst the location of the synchronisation signals in the radio frame of the secondary (extension) component carrier are configurable. | 10-23-2014 |
20150016374 | COMMUNICATION SYSTEM - A communication system in which a mobile communication device communicates with communication apparatus of the communication system uses radio frames that include a plurality of sub-frames. The mobile communication device receives information for use in identifying a first power ratio, said first power ratio representing a ratio of a power used by the communication apparatus for transmitting a reference signal to a first power used for transmitting data in a first sub-frame of a radio frame. The mobile communication device receives information for use in identifying and a second power ratio, the second power ratio representing a ratio of a power used by the communication apparatus for transmitting a reference signal to a second power used for transmitting data in a second sub-frame of said radio frame. The mobile communication device generates a measurement report including information calculated in dependence on at least one of the first and second power ratio. | 01-15-2015 |