Nokia Solutions and Networks Oy

Hmd Global Oy

Other

Nokia Siemens Networks Oy

Jing Xiu Liu

Peter Skov

Min Huang

Chun Long Wang

Lei Du

De Shan Miao

Jian Feng Kang

Xiao Yi Wang

Shengping Sam Zhong

Jian Kang Wang

Chun Ye Wang

The present invention provides a decellularized collagenous tissue and a method for processing an artificial heart valve containing the decellularized collagenous tissue. The method comprises immersing the decellularized collagenous tissue in a preservation liquid containing an ionic liquid until the size of the decellularized collagenous tissue remains stable in a non-liquid environment. The present invention also provides a preservation method, comprising immersing the decellularized collagenous tissue or the artificial heart valve containing decellularized collagenous tissue in the preservation liquid containing ionic liquid until the size of the collagen tissue remains stable in the non-liquid environment. The present invention also provides a decellularized collagenous tissue and an artificial heart valve containing the decellularized collagenous tissue processed by the method described above. The method can effectively avoid a biological material damage caused by being in a non-liquid environment and is beneficial to implement a subsequent processing and sterilization for the biological material.

Acellular collagenous tissue and a processing method of artificial heart valve comprising the acellular collagenous tissue

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

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

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

Radio conditions of a user equipment in a sector of a mobile communications network are detected and the user equipment is allocated to a group of several groups of user equipments based on the radio conditions of the user equipment. The several groups include a first group of user equipments applying user equipment-specific horizontal beamforming and sector-specific vertical beamforming, a second group of user equipments applying user equipment-specific vertical beamforming and sector-specific horizontal beamforming, and a third group of user equipments applying user equipment-specific vertical beamforming and user equipment-specific horizontal beamforming. When the user equipment acquires a signaling message including a measurement set of reference signal ports for obtaining channel state information from the user equipment, it identifies an allocation scheme of the reference signal ports in the measurement set and generates the channel state information based on the measurement set using the allocation scheme.

Three-dimensional beamforming in a mobile communications network

There is provided a network component of a wireless communication network. The network component includes at least two output ports, each output port being associated with an antenna. The network component further includes a controller for providing a power signal set having at least two power signal components, each power signal component being associated with one of at least two output ports and being indicative of a power portion to be provided to its associated antenna for generating a transmission to a receiving network component of the wireless communication network. Further, the network component includes a power adjustment unit for scaling power signal components of the power signal set, thereby providing a scaled power signal set.

Scaling transmit power in multi-antenna wireless systems

An apparatus includes means for providing load information, said load information for sending from one of an access node and a relay node associated with said access node to the other of said relay node and access node.

Growing community of inventors

Beijing, China

Jing Xiu Liu