Broadcom Corporation

Ville Vartiainen

Samuli Heikki Turtinen

Timo Koskela

Sami-Jukka Hakola

Matti Juhani Pikkarainen

Tero Henttonen

Juha Pekka Karjalainen

Anna Pantelidou

A wireless device transmits a device-to-device discovery signal using the same transmission resource that is used for transmitting uplink retransmissions to a base station by a second wireless device. The device-to-device discovery signal is transmitted at a power that is determined in accordance with a control signal received by the wireless device from the base station. In an example, the wireless device transmits the device-to-device discovery signal on an uplink control channel established for use for sending uplink control signals to the base station.

Methods and apparatus for transmitting and/or controlling device-to-device discovery signals

A method and apparatus are provided for reliably paging a mobile terminal in the idle mode, even in an instance in which the mobile terminal is subjected to interference from a CSG cell. In this regard, a method is provided that includes causing an indication of an inter-cell interference coordination (ICIC) paging period to be provided to the mobile terminal. The indication of the ICIC paging period includes an ICIC paging period Tand a number Nof consecutive almost blank subframes (ABS) subframes in which a paging message is to be expected. The method also determines, for a respective ICIC paging period, the Nnearest ABS subframes of the CSG cell relative to a paging occasion (PO) subframe of the mobile terminal. A paging message is also provided to the mobile terminal in one of the Nnearest ABS subframes of the CSG cell.

Method and apparatus for inter-cell interference coordination paging of a mobile terminal in an idle state

Downlink common control information communicated in a first network (such as a macro network or a small cell) between a first/macro access node and a user equipment UE is mapped to an uplink resource. The first/macro access node and UE then tune to the mapped uplink resource to send or receive dedicated control information about the UE concerning a second network (an underlay network such as a femto CSG or D2D network). In one embodiment the DCI may be within a downlink assignment indicated by P-RNTI, RA-RNTI, or SI-RNTI; and the mapping uses a control channel element which carries the P-RNTI or the RA-RNTI or the SI-RNTI. In another the mapped uplink resource is a formator formatPUCCH and the common control information requires neither an acknowledgement nor a negative acknowledgement. The dedicated control information may inform about interference experienced by the UE with the second network.

Resource utilization in wireless networks

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Oulu, Finland

Ville Vartiainen