Nokia Technologies Oy

Nokia Corporation

Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Nokia Technology Oy

Cassio Ribeiro

Klaus Franz Doppler

Klaus Hugl

Juha Sakari Korhonen

Carl Simon Wijting

Esa Tapani Tiirola

Mika P Rinne

Olav Tirkkonen

Michal Cierny

Timo Erkki Lunttila

Weidong Yang

Timo Koskela

Kari Pekka Pajukoski

Sami-Jukka Hakola

Pekka Janis

Osman Nuri Can Yilmaz

Mikko Aleksi Uusitalo

Zexian Li

Jarkko Kneckt

Tao Chen

Tommi Tapani Koivisto

Timo E Roman

Martti Johannes Moisio

Lars Lindh

Jarkko Lauri Sakari Kneckt

Antti Sorri

Enrico Rantala

Klaus Doppler

Marko Lampinen

Panayiotis Papadimitriou

Pekka Jänis

Pekka Markus Nikolai Janis

Andrei Malkov

Osman Yilmaz

Sakari Korhonen

Methods, apparatuses, and computer program products for synchronization in a network are provided. One method includes configuring a first node for joining a first synchronization group with a second node on a lowest stratum, receiving at least one synchronization signal comprising information on at least an identity of the second node, and synchronizing the first node to the first synchronization group based on the synchronization signal.

Controlled synchronization group selection

There is provided a method comprising determining, at a first access point, whether a carrier from a plurality of carriers is a primary listen-before-talk carrier or a secondary listen-before-talk carrier and providing information using the carrier, said information comprising an indication of whether the respective carrier is a primary listen-before-talk carrier or a secondary listen-before-talk carrier.

Multi-channel listen-before-talk arrangements for licensed-assisted access in LTE

Systems, methods, apparatuses, and computer program products for signaling support for devices with multiple and/or flexible form factors are provided. One method includes determining, by a device having multiple forms and associated with a network, a current form or a change in the form of the device, determining new parameters according to the determined current form of the device, and reporting the new parameters to the network.

Signaling support for devices with multiple and/or flexible form factors

Systems, methods, apparatuses, and computer program products for device-to-device (D2D) resource release are provided. One method includes indicating an early release of resources allocated to a UE.

Device-to-device (D2D) resource release

A technique may include transmitting, by a user device in a proximity-based services wireless network via a first time-frequency resource identified by a first logical time index within N logical time resources and a first logical frequency index in the range from 0 to M&#x2212;1, a first occurrence of a signal for the user device during a transmission period; determining a time index adjustment associated with the first logical frequency index; determining, by the user device, a second logical time index of a second time-frequency resource for transmitting from the user device a second occurrence of the signal within the transmission period, the second logical time index being determined based on the first logical time index and the time index adjustment associated with the first logical frequency index; and transmitting, by the user device via the second time-frequency resource, a second occurrence of the signal during the transmission period.

Signal transmission for proximity-based services wireless communications

Systems and techniques for resource allocation for scheduling assignment. A scheduling assignment is transmitted and/or received using resources that are divided into first and second scheduling assignment resources. A dual resource mapping in accordance with an scheduling assignment index is performed to define first and second resources for transmission and/or reception of the scheduling assignment.

Methods and apparatus for scheduling assignment design for device to device communications

One embodiment is directed to a method for operating base stations in a heterogeneous network. The method may include receiving, by a first base station, an indication for a second base station to use flexible time division duplex mode (), assessing an amount of interference that will be caused by the second base station ()-(), deciding how to adjust a transmission power of the second base station (), and sending the second base station a request to adjust the transmission power ().

Set up and maintenance framework for flexible time division duplex operation in heterogeneous network

In accordance with an example embodiment of the present invention, a method comprises determining at a base station an activity level, and selecting an availability mode based at least in part on the activity level, wherein the availability mode is one of a full-availability mode, a semi-availability mode and a minimum-availability mode. The method also comprises configuring radio resources for at least the minimum-availability mode and switching to the selected availability mode.

Method and apparatus for power saving operations in wireless network elements

Device discovery may be important in a variety of communication systems including, for example, wireless communication systems. Thus, certain embodiments may provide a device to device beacon design that may provide for efficient interference management and resource allocation. For example, a method may include preparing a proximity communication request including information about a device to device communication state of a discovered user equipment or resource usage of the discovered user equipment. The method may also include transmitting the proximity communication request to a base station.

Device to device beacon, user equipment discovery, and resource allocation

An apparatus, method and system to set a control channel configuration in a response to an indication of interference in a communication system. In one embodiment, an apparatus includes a processorand memoryincluding computer program code. The memoryand the computer program code are configured to, with the processor, cause the apparatus to detect interference for the apparatus operable on a communication system from another communication system, and provide an indication of the interference to a base station. The memoryand the computer program code are further configured to, with the processor, cause the apparatus to receive an indication of a relocation of at least a portion of a control channel to a protected area in response to a signal from the base station.

Apparatus and method to set a control channel configuration in a communication system

In a non-limiting and example embodiment, a method is provided for controlling usage of prioritized radio channels, comprising: detecting (), by a secondary user apparatus, an interference limitation of a first radio channel for which a primary user apparatus has priority over the secondary user apparatus, selecting (), by the secondary user apparatus, the first radio channel for communication with another apparatus to a first direction after detecting the interference limitation, and selecting (), by the secondary user apparatus, a second radio channel for communication with the other apparatus to a second direction, opposite to the first direction.

Method and apparatus for using radio channels

Methods, apparatuses, and computer programs for providing a flexible frequency location for a backwards compatible carrier in a communication system are provided. Embodiments of the invention enable a backwards compatible carrier segment supporting all or a subset of legacy LTE Release transmission modes to be located at an arbitrary position on the system bandwidth (BW) through a cyclic extension of reference signals, such as channel state information reference signals (CSI-RS), and/or other resource element configurations, such as interference measurement reference signals (IMRS), required for supporting PDSCH operation outside the backwards compatible carrier segment.

Cyclic channel state information reference signal configuration for new carrier type with backward compatible segment

Methods, apparatuses, and computer program products for indication of reference symbol (RS) transmission power change in a network are provided. One method includes reducing transmission power, and signaling information about the changes in RS transmission power to associated user equipments via a control channel. In one embodiment, the information may comprise an indication about the subframes in which the RS transmission power changes in comparison to a reference value, or the information may comprise specific RS transmission power values as well as information regarding in which subframes the specific RS transmission power values are going to be used.

Method for indication of reference symbol transmission power change in cellular network

Frame structures and signaling arrangements for interference aware scheduling may be applicable to a local area radio system to complement existing wide area cellular systems, like GSM/UMTS/HSPA/LTE. In certain embodiments a method is provided including preparing a frame for transmission in a wireless communication system. The method can also include incorporating an interference report into the frame. The interference report is directly associated with a corresponding resource. The method can further include transmitting the interference report within the frame in the wireless communication system.

Frame structure and signaling arrangement for interference aware scheduling

In accordance with an example embodiment of the present invention, a method is disclosed that comprises measuring a first link quality of a first link based at least in part on a first power value; measuring a second link quality of a second link based at least in part on a second power value; and determining a suitable device-to-device (D2D) mode for a D2D connection based at least in part on the first link quality, the second link quality, and one or more D2D user equipment (UE) constraints.

Growing community of inventors

Espoo, Finland

Cassio Ribeiro