47 results about "E-UTRA" patented technology

An improved method of processing random access procedures, wherein the network receives at least one access burst to allow a network to estimate uplink received timing, the access burst containing at least a preamble, and transmits information for responding to the at least one access burst, while the mobile terminal configures at least one access burst containing at least a preamble and transmits the at least one access burst to allow a network to at least estimate uplink received timing.

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.

A method and apparatus are disclosed comprising open loop / closed loop uplink power control scheme for E-UTRA. The combined open and closed loop method for UL intra-cell PC controls the wireless transmit receive unit (WTRU) transmit power spectral density (PSD), PSDTx (e.g. power per RB)

A cellular communications system is provided in which a user device selects a cell with which to register based on whether or not a candidate cell can provide an emergency call service. This determination is preferably determined having reference to a radio access technology associated with the candidate cell and, where the cell is an E-UTRA cell, having reference to information provided in system information output by the cell.

A method for performing radio usage measurements to support radio link operation and / or load balancing can be performed at an evolved Node B (eNB). The method may include determining a first radio usage parameter. The first radio usage parameter may be a measurement of radio usage between the eNB and at least one wireless transmit receive unit (WTRU). The method may also include determining a second radio usage parameter. The second radio usage parameter may be a measurement of radio usage between the eNB and at least one relay node (RN) served by the eNB. The method may further comprise utilizing at least one of the first radio usage parameter or the second radio usage parameter to evaluate at least one of: Evolved Universal Terrestrial Radio Access (E-UTRA) radio link operation, radio resource Management (RRM), network operation and maintenance (OAM) and self-organizing network (SON) functions or functionalities.