Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Andrew Wireless Systems Gmbh

Koninklijke Philips Corporation N.V.

Sennheiser Electronic Gmbh & Co Kg

Karlsruher Institut Fur Technologie

Dennis Wieruch

Thomas Wirth

Thomas Fehrenbach

Bernd Holfeld

Thomas Haustein

Cornelius Hellge

Lars Thiele

Thomas Schierl

Yago Sánchez De La Fuente

Josef Bernhard

Gerd Kilian

Alfons Dussmann

Baris Göktepe

Baris Goektepe

Luigi Tarlazzi

Oliver Braz

Johannes Dommel

Zoran Utkovski

Martin Kasparick

Renato Luis Garrido Cavalcante

Benjamin Sackenreuter

Friedrich Jondral

Holger Jäkel

Michel Massanet-Ginard

Martin Kurras

Peter Jung

Jan Watermann

Sebastian Georgi

Udo Krüger

Jens Pilz

A user device, UE, and a base station, BS, for a wireless communication system is described. Each is using a transmission scheme on a radio resource, and is to determine one or more parameters of a radio channel associated with the radio resource, and to adapt the transmission scheme by selecting an additional radio resource on the basis of the determined one or more parameters. Further a wireless communication system, comprising two or more of the above devices, corresponding methods and a computer program product are described.

Parameter based adaption of a transmission scheme on a radio resource

The present invention is concerned with different novel concepts for reducing latency in data transmission. These concepts may be exploited by a transceiver configured to perform wireless data communication with a third party device by aggregating time division duplex carriers having different temporal distribution of uplink times and downlink times. These concepts may further be exploited by an apparatus configured to perform data transmission or reception via allocations of transmission resources of aggregated carriers in units of transmission time intervals into which the aggregated carriers are subdivided, wherein the aggregated carriers are temporally subdivided into the transmission time intervals in a temporal grid, respectively, wherein the aggregated carriers' grids are temporally mutually offset.

Latency reduction in TDD systems with carrier aggragation

A data communication apparatus, for transmitting one or more blocks of data within a frame including a two-dimensional grid of transmission symbol positions is configured to select a group of transmission symbol positions, which is a subset of the two-dimensional grid of transmission symbol positions, for a transmission of a data portion. The data communication apparatus is configured to select one or more reference symbol positions associated to the selected group of transmission symbol positions, out of a plurality of possibilities, based on an information describing a desired relative position of the reference symbol position with respect to the selected group of transmission symbol positions. Other apparatuses also use a flexible selection of transmission symbol positions and a flexible selection of reference symbol positions. A system, methods and computer programs are also described.

Data communication apparatuses, data communication system and methods using reference symbols

A receiver configured for receiving a wireless signal having a signal transmitted through a channel using resource elements of a wireless communications network has a determiner configured for determining a resource information indicating the resource elements and for determining a channel metric of the channel. There receiver has an associator configured for associating the resource information with the channel metric using an identity information contained in the signal.

Device and method for associating resource information with channel metric information in wireless networks

An apparatus for a wireless communication system is configured to perform semi-persistent scheduling (SPS), wherein a size of an SPS interval is based on one or more transmission time intervals (TTIs). A further apparatus for a wireless communication system is described, wherein the apparatus is configured to perform semi-persistent scheduling, and wherein the apparatus is configured such that the semi-persistent scheduling is controlled via a configuration message.

Scheduling enhancements for latency-constrained and reliable wireless communication systems

A receiver receives and processes a data signal having at least one data signal block. The data signal block has a number of symbols in the time domain and a number of sub-carriers in the frequency domain. The data signal block includes a control region to provide control data to the receiver and a payload region to provide payload data to the receiver. Payload data is allocated to the control region of the data signal block.

Data transmission in a wireless communication system with reduced latency

The present invention concerns a cellular communication network having a base station serving a radio cell and at least one user equipment located within the radio cell, wherein the base station is configured to receive a radio signal from the user equipment and to determine at least one signal property of the received radio signal, wherein the base station is further configured to assign a user equipment identifier to the user equipment based on the a least one determined signal property. The present invention further concerns a base station to be used in the above mentioned cellular network as well as corresponding methods.

Cellular communication network using a user equipment identifier

An apparatus for a wireless communication system is configured to perform semi-persistent scheduling (SPS), wherein a size of an SPS interval is based on one or more transmission time intervals (TT's). A further apparatus for a wireless communication system is described, wherein the apparatus is configured to perform semi-persistent scheduling, and wherein the apparatus is configured such that the semi-persistent scheduling is controlled via a configuration message.

A base station is configured to control a wireless communications network cell of a wireless communications network. The base station is configured to establish a connection to a first user equipment and to a second user equipment using a random access process. For establishing the connection to the first user equipment, the base station is configured to use a sequence of a first random access preamble, the sequence having a first length. For establishing the connection of the second user equipment, the base station is configured to use a sequence of a second random access preamble, the sequence having a second length.

Method for a contention-based random access procedure in a wireless communication network

A method of low-latency audio transmission in a mobile communications network utilizing first data frames or subframes encoded according to a first format and shorter second data frames encoded in another second format for audio data. An audio transmission system includes a terminal, a base station, and an audio receiver. The terminal transmits via an uplink audio data that are encoded in the second format and other data that are encoded in the first format. The audio receiver directly receives the audio data transmitted via the uplink. The encoding/decoding of the audio data of one of the second data frames is influenced by other audio data of the same second data frame but not by audio data of another second data frame. Audio transmission from the terminal to the audio receiver is effected in the allocated time slots and frequencies in a waveform in conformity with the mobile communications network.

Method and system for a low-latency audio transmission in a mobile communications network

An apparatus for a wireless communication system, is configured to perform semi-persistent scheduling (SPS), wherein a size of an SPS interval is based on one or more transmission time intervals (TTIs). A further apparatus for a wireless communication system is described, wherein the apparatus is configured to perform semi-persistent scheduling, and wherein the apparatus is configured such that the semi-persistent scheduling is controlled via a configuration message.

In one embodiment, a repeater for wireless communication is provided. The repeater comprises: circuitry configured to receive first and second MIMO-coded information channels at a first frequency; a converting device configured to convert the first MIMO-coded information channel to a second frequency using information from a test receiver configured to determine unused frequency ranges situated outside frequency bands allocated to mobile radio for wireless communication, the test receiver communicatively coupled with the converting device, the converting device configured to convert the first MIMO-coded information channel to the second frequency in at least one communication direction, the second frequency within the unused frequency ranges situated outside the frequency bands allocated to mobile radio; and circuitry configured to transmit the first and second MIMO-coded information channels in the at least one communication direction, wherein the first and second MIMO-coded information channels are transmitted using different frequencies compared to each other.

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Berlin, Germany

Dennis Wieruch