The present invention is designed to provide a user terminal, a radio base station and a radio communication method of novel structures that can achieve a good communication environment. A radio base station non-orthogonal-multiplexes downlink signals for a plurality of user terminals over a given radio resource, a user terminal having received the downlink signals for the plurality of user terminals decodes downlink signal for another user terminal, judges whether or not the downlink signal for the other user terminal has been successfully received, based on the decoding result of the downlink signal, reports a judgement result as to whether or not the downlink signal for the other user terminal has been successfully received and a judgement result as to whether or not a downlink signal for the user terminal has been successfully received, to the radio base station, and then the radio base station executes retransmission control of downlink signals based on reports from the user terminal.

User terminal, radio base station and radio communication method

Techniques to implement MBMS services in a wireless communication system. In one aspect, a method is provided for processing data for transmission to a plurality of terminals. Frames of information bits (which may have variable rates) are provided to a buffer implementing a matrix. The matrix is padded with padding bits based on a particular padding scheme to support variable frame rates. The frames are then coded based on a particular block code to provide parity bits. The frame of information bits and the parity bits are then transmitted to the terminals. In another aspect, a method is provided for controlling the transmit power of a data transmission to a plurality of terminals. In accordance with the method, TPC streams are received from the terminals and processed to obtain a stream of joint power control commands used to adjust the transmit power of the data transmission.

Multi-media broadcast and multicast service (MBMS) in a wireless communication system

The object is achieved by providing a base station apparatus for performing time and frequency scheduling in uplink packet access with: an interference amount measurement part configured to measure an uplink interference amount for each interference amount measurement unit which comprises a predetermined period and a predetermined number of frequency blocks; an interference amount determination part configured to determine whether the uplink interference amount satisfies a predetermined condition; and an overload indicator reporting part configured to report an overload indicator to a neighboring cell when the predetermined condition is satisfied.

Base station apparatus and communication control method

The disclosed embodiments include system and method for routing communications over a communications network. In one embodiment, a determination is made as to whether to establish a communication along a communication path based on network performance information. The disclosed embodiments provide several alternatives for establishing the communication and improving communications along the communication path in response to a determination that at least one network node along the communication path is impaired or congested.

System and method for routing data on a packet network

A method of wireless communication includes monitoring coexistence issues among supported radios in a User Equipment (UE). The method includes determining a coexistence policy for communication resource operation within a user equipment (UE) and configuring communication resources of the user equipment in accordance with the determined coexistence policy. The policy may give priority to an LTE modem, an ISM modem, or may implement a variable priority scheme. The policy may be communicated to each modem from a host over a software messaging communication line. Modems in the UE may communicate with each other through logical lines providing real time communication. The policy may determine the operation of each modem and the treatment of the logical lines by each modem.

Method and apparatus to facilitate support for multi-radio coexistence

The invention relates to a method for scheduling in a mobile communication system where data of priority flows is transmitted by mobile terminals via dedicated uplink channels to a base station. Each mobile terminal transmits at least data of one priority flow via one of the dedicated uplink channels. Moreover, the invention relates to a base station for scheduling priority flows transmitted by mobile terminals via dedicated uplink channels to the base station. Further, a mobile terminal transmitting at least data of one priority flow via a dedicated uplink channel to a base station is provided. In order to optimize base station controlled-scheduling functions in a mobile communication system the invention proposes to provide the scheduling base station with QoS requirements of individual priority flows transmitted via an uplink dedicated channel and to adapt the mobile terminals to indicate the priority flows of which data is to be transmitted to the base stations for scheduling.

Quality-of-service (QoS)-aware scheduling for uplink transmission on dedicated channels

The present invention relates to a method for scheduling data retransmissions, a method for use in a data retransmission scheme and a method for updating a soft buffer of a base station in a mobile communication system during a soft-handover. The present invention relates to a base station executing the controlling and updating method, a communication terminal for executing the scheduling method and to a mobile communication system comprising at least one the base station and communication terminal. To prevent erroneous combining of data packets in a packet retransmission scheme at the receiver, the present invention provides a method that may flush the soft buffer region associated to a received data packet upon its correct reception. Further, a method is provided that monitors the time elapsed since the last storing of a data packet in a buffer region of a base station to be able to trigger the flush of the buffer region upon expiry of a threshold time period.

Time monitoring of packet retransmissions during soft handover

The invention relates to method and apparatus for reconfiguring a MAC entity of a MAC layer of the apparatus receiving protocol data units from a mobile terminal via on uplink upon reconfiguration of the uplink channel. Further, the invention relates to methods and mobile terminals for triggering the transmission of a status report from an RLC entity configured for an uplink channel of a network element in a radio access network, as well as a method and terminal for configuring the MAC layer of the mobile terminal. In order to enable an efficient and fast generation of RLC status reports after an uplink channel reconfiguration the invention suggests new mechanisms to trigger the transmission of status reports upon uplink reconfiguration as well a new operation and configuration of radio access network elements and UEs upon uplink channel reconfiguration, in particular a transmission time interval (TTI) reconfiguration.

MAC layer reconfiguration in a mobile communication system

A mobile terminal (103) for requesting resources for transmitting data on uplink within a mobile communication system, and a network entity (102) for allocating uplink resources to the mobile terminal, are disclosed. To provide a flexible scheduling scheme for uplink transmission, scheduling procedures are based on a request grant scheme. The resource request (601) of the mobile terminal is provided via a contention-based channel, while all further communication (603, 604, 606) uses scheduled resources. A reference signal (604) is repeatedly transmitted from the mobile terming to the network entity upon receipt of a resource allocation message in response to the resource request.

Uplink resource allocation in a mobile communication system

A method of retransmission protocol reset synchronisation in a radio network of a communication system, said radio network including at least one radio network controller RNC for controlling a plurality of base stations in communication with mobile terminals, wherein the RNC communicates with a communication terminal using a radio link control RLC procedure and the plurality of base stations communicate with the mobile terminals using a medium access control MAC procedure, comprising the steps of initiating a RLC reset procedure upon occurrence of an unrecoverable protocol error and initiating a MAC reset procedure in response to a RLC reset procedure.

Eiko Seidel

Papers

Quality-of-service (QoS)-aware scheduling for uplink transmission on dedicated channels

Time monitoring of packet retransmissions during soft handover

MAC layer reconfiguration in a mobile communication system

Uplink resource allocation in a mobile communication system

Method of retransmission protocol reset synchronisation