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

Koninklijke Philips Corporation N.v.

Zoran Utkovski

Lars Thiele

Johannes Dommel

Martin Kasparick

Thomas Haustein

Thomas Schierl

Cornelius Hellge

Thomas Fehrenbach

Baris Göktepe

Thomas Wirth

Dennis Wieruch

Renato Luis Garrido Cavalcante

Stephan Blankenstein

Michel Massanet-Ginard

Bernd Holfeld

Sameh Eldessoki

Stephan Faehse

Patrick Agostini

A device for communicating in a wireless communication network to transmit transmission information by transmitting a wireless signal in a random access channel of wireless communication network includes a wireless interface configured for transmitting the wireless signal and a control unit configured for providing the wireless signals so as to include a random access preamble. The control unit is configured for selecting the random access preamble/that the random access preamble is associated with the transmission information.

Data-centric event-based random access procedure

A user equipment, UE, for a wireless communication network including one or more base stations, performs a transmission to a base station using a grant-free, GF, transmission scheme. The transmission being performed in accordance with a GF transmission configuration. The UE receives from the base station a certain signaling. The certain signaling indicates that the base station failed to identify the UE from the transmission. Responsive to the certain signaling from the base station, the UE retransmits the transmission in accordance with a GF retransmission configuration. The GF retransmission configuration is different from the GF transmission configuration.

ARQ/HARQ-related procedure for grant-free random access

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

A wireless communications network includes a base station configured for operating a wireless communications network cell of the wireless communications network so as to provide communication in a plurality of slots. Each slot includes a plurality of associated physical resources. The wireless communications network includes at least one transmitter configured for transmitting a signal in the wireless communications network cell by mapping the signal into a number of part signals and for transmitting the number of part signals with a corresponding number of associated slots using a corresponding number of sets of physical resources, each set containing at least a subset of the associated plurality of physical resources of the slot. Each set of physical resources is received at the base station shifted with a set-individual offset and with respect to a synchronized start of the slot.

Resource-staggered coded multiple access

A transmitter for transmitting data to a receiver of a wireless communication network, the transmitter includes at least one antenna, a codebook, an encoder, and a transceiver coupled to the encoder and to the at least one antenna. The codebook includes a plurality of codewords, each codeword being a vector including a plurality of symbols, each symbol to be transmitted over resources of the wireless communication network. The encoder is configured to receive an information message to be transmitted to a receiver of the wireless communication network, to select from the codebook the codeword associated with the received information message, and to divide the selected codeword into a plurality of sub-codewords. The transceiver is configured to transmit via the at least one antenna a first sub-codeword, and to transmit via the at least one antenna a second sub-codeword responsive to an indication that the encoded information message was not successfully decoded at the receiver on the basis of the received first sub-codeword.

Transmission of data by multiple users over shared resources

A user equipment for operating in a wireless network, wherein the wireless network utilizes a first number of resources for serving communicating UEs, comprises a wireless interface for communicating in the wireless network; and a controller configured for selecting, for communicating in the wireless network, from a second number of predefined subsets of the first number of resources, at least one subset. The second number is larger than the first number and the second number of predefined subsets is based on a mapping of the first number of resources into the second number of subsets using an Euler-square mapping.

Signature-domain multiplexing for non-orthogonal multiple access

A transmitter for transmitting data to a receiver of a wireless communication network is disclosed. The wireless communication network includes a plurality of resource elements, and at least a subset of the plurality of resource elements is shared by a plurality of transmitters for transmitting data from the plurality of transmitters to the receiver. The transmitter includes at least one antenna, an encoder and a transceiver coupled to the encoder and to the antenna. The encoder receives a data element to be transmitted to a receiver of the wireless communication network, and maps the data element to a codeword obtained by selecting at least one vector from a unique set of vectors. The unique set of vectors is exclusively assigned to the transmitter, and each vector includes a plurality of symbols. Each symbol is to be transmitted over a resource element of the wireless communication network. The transceiver transmits via the antenna the codeword on the subset of resource elements, the codeword representing the data element and identifying the transmitter at the receiver.

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Berlin, Germany

Zoran Utkovski