Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Hmd Global Oy

Nokia Corporation

Nokia Technologies Oy

Beijing Xiaomi Mobile Software Co., Ltd.

Peter Skov

Chunhai Yao

Xiaoyi Wang

Timo Erkki Lunttila

Chun Hai Yao

Jie Lin

Chunli Wu

Li Ni Zhang

Jing Xiu Liu

Esa Tapani Tiirola

Frank Frederiksen

Kari Pekka Pajukoski

Tommi Tapani Koivisto

Xiang Guang Che

Xiao Wang

De Shan Miao

Deshan Miao

Chun Long Wang

Peng Chen

Chun Yan Gao

Yu Yan

Xiao Yi Wang

Lilei Wang

Kari Juhani Hooli

Klaus Hugl

Claudio Rosa

Erlin Zeng

Chunyan Gao

Li Zhang

Timo E Roman

Mieszko Chmiel

Chao Wu

Jiang Chang

Xiangguang Che

Shuang Tan

Zhang Li

Jingxiu Liu

Xin Xia

Jian Feng Qiang

Dong Zhao

Jiezhen Lin

Jian Kang Wang

Jie Zhen Lin

Chun Ye Wang

Mieszko Chimiel

The present invention provides a method, respective apparatuses, system and computer program product for obtaining channel state information in a coordinated multi&#xac;point transmission/reception communication network. The method comprises allocating a first sounding resource to at least one of a plurality of user equipment in a coordinated multi-point transmission/reception communication network for transmitting sounding reference signal to a base station of a serving cell, and allocating a second sounding resource to the at least one user equipment for transmitting sounding reference signal to a base station of an interfering cell, wherein the first and the second sounding resource are different from each other.

Scheme for multi-cell UL sounding transmission

A method includes receiving information at a user equipment from a first apparatus, the information indicating to the user equipment is to communicate with a second apparatus.

Method and apparatus for decoupling uplink and downlink cell selection

Methods and apparatus for cell aggregation are disclosed. In accordance with one aspect information regarding a predefined maximum number of cells that can be aggregated by a communication device on a single carrier resource is sent by the communication device. Said Information is received by a network node where after control on cell aggregation can be based on the information, and the communication device can support cell aggregation on the single carrier resource up to said maximum number of cells.

Method and apparatus for resource aggregation in wireless communications

The present invention provides a method, respective apparatuses, system and computer program product for obtaining channel state information in a coordinated multi-point transmission/reception communication network. The method includes allocating a first sounding resource to at least one of a plurality of user equipment in a coordinated multi-point transmission/reception communication network for transmitting sounding reference signal to a base station of a serving cell, and allocating a second sounding resource to the at least one user equipment for transmitting sounding reference signal to a base station of an interfering cell, wherein the first and the second sounding resource are different from each other.

An apparatus including at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to obtain, over a series of times, information related to at least one of spatial properties and frequency properties of a channel used in a directional communication between a communication network control element or function and a communication element, to quantify the information related to at least one of spatial properties and frequency properties into a metric, to track whether the metric is smaller than a first threshold or greater than a second threshold during a predetermined period of time, and to decide to use a first transmission mode or a second transmission mode on the basis of a result of the tracking.

Control of transmission mode selection

This disclosure relates to control of communications by a communication device in a service area. Resources for simultaneous communications via a plurality of antennas in the service area are allocated and information of said allocated resources are sent via a plurality of control channels to the communication device. The communication device receives the plurality of control channels and can communicate simultaneously via the plurality of antennas based on the information.

Allocation of resources

An apparatus, method and computer program product for supporting dynamic multipoint communication configuration stations include defining at least two different communication transmission sets for cellular-based communication between base station and terminal, wherein the communication transmission sets are related to a downlink reference signal configuration; and assigning a communication transmission set for use in a current transmission related to the cellular-based communication.

Supporting dynamic multipoint communication configuration

The present invention proposes a method, including in a communication network area constituted by a plurality of transmission points configured for coordinated transmissions to at least one target, each transmission point being identified by an individual identifier, each transmission point being configured to transmit common reference signals on common channels and dedicated reference signals on dedicated channels to said at least one target device, assigning the respective individual identifier of each transmission point to the common reference signals on the common channels of the respective transmission point, and allocating, to the dedicated reference signals on the dedicated channels of respective plural transmission points, an identifier unrelated to the individual identifiers. Also, corresponding devices are addressed.

Methods and devices for dynamic allocation of identifiers in hybrid cell identifier scenarios

There are provided measures for configuration of carrier-related reference signal transmission. Such measures exemplarily include setting of a transmission mode for reference signal transmission on a carrier out of at least a long-cycle discontinuous transmission mode and a short-cycle discontinuous transmission mode, said long-cycle discontinuous transmission mode having a longer transmission discontinuity period than the short-cycle discontinuous transmission mode, and configuration of a transmission of at least one reference signal on the carrier according to the set transmission mode. The transmission mode setting may for example be based on at least one of an activation state of the carrier as serving cell and/or secondary cell and/or measurement object cell and a period of radio resource management measurement on the carrier.

Configuration of carrier-related reference signal transmission

There is provided a mechanism for conducting a communication between at least one communication network control element such as an eNB and at least one communication element such as a UE wherein a DM RS based communication mode is used. DMRS (scrambling) sequences are generated wherein each DMRS sequence includes a set of calculation parameters being specific for the respective DMRS sequence, wherein the set of calculation parameters is configurable by the eNB during communication. For initializing each of the at least one scrambling sequence before receiving the configuration information, i.e. in an initial phase of the communication, a predetermined default value based on e.g. an UE_ID and being selectable from a set of predetermined default values is used for the set of calculation parameters in each DMRS sequence.

Communication mechanism using demodulation reference signal based communication mode

It is provided an apparatus, including synchronizing means adapted to synchronize with a cell of a cellular communication system based on a synchronization signal and to obtain a cell identification of the cell; receiving means adapted to receive a symbol only on one or more subcarriers and subframes which carry at least one symbol of a physical broadcast channel; first obtaining means adapted to obtain a common demodulation reference symbol based on the cell identification and the received symbol; demodulating means adapted to demodulate a signal received on the physical broadcast channel based on the common demodulation reference symbol; user equipment means adapted to provide a user equipment functionality of the communication system.

DM RD based LTE downlink physical layer

The present invention proposes methods and apparatuses and computer program products for dynamic transmission set indication in scenarios in which a terminal is enabled for single cell transmission SiC as well as for coordinated multipoint transmission CoMP. To this extent, appropriate information is being fed back from the terminal to the base station via feedback signaling channels. The decision on which transmission mode defined by respective transmission set definitions is used can be taken by the terminal or, in a modified scenario, by the base station, based on the information fed back.

Dynamic transmission set indication

Definition of a combined bandwidth is disclosed. Bandwidths for components of a combined bandwidth can be defined by selecting configurations for the bandwidths from a group of available bandwidth configurations. The bandwidths are combined to define a contiguously combined bandwidth in a resource block unit. At least one set of coefficients corresponding to the available bandwidth configurations are used. The contiguously combined bandwidth shall not exceeds a predefined maximum bandwidth. A transmission bandwidth can be defined. A channel bandwidth can be defined based on the defined transmission bandwidth.

Bandwidth in wireless communications

Communications of a time division duplex radio frame provided with at least one special subframe including at least one pilot period is provided such that at least one special subframe is used for signalling of critical control information. Other subframes of the radio frame than the at least one special subframe are flexibly allocated for use as downlink and uplink subframes of the radio frame.

Switching between downlink and uplink

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Beijing, China

Peter Skov