Huawei Technologies Co., Limited

Alexis Decurninge

Maxime Guillaud

Sergey Yurievich Ikonin

Alexander Alexandrovich Karabutov

Maxim Borisovitch Sychev

Sheng Yang

Dimitrios Tsilimantos

Stefan Valentin

Xiwen Jiang

Ngo Khac Hoang

Florian Kaltenberger

A transmitting device for a random-access communication, includes an encoder that acquires an input message having a sequence of bits. The encoder is configured to form a plurality of blocks from the sequence of bits, and determine a plurality of vectors for the plurality of blocks. The transmitting device further includes a mapper circuit that is configured to construct a symbol vector based on the plurality of vectors. The transmitting device further includes an antenna that is configured to transmit the constructed symbol vector over a radio frequency (RF) signal to a receiving device, where the constructed symbol vector represents a symbol modulated in the radio frequency signal.

Transmitting device, receiving device, and methods for random-access communication

The disclosure relates to a transmitting communication apparatus and a receiving communication apparatus of a non-coherent communication system. The transmitting communication apparatus is configured to communicate with the receiving communication apparatus via a communication channel. The transmitting communication apparatus comprises a processing circuitry configured to: map a sequence of data bits into a modulation symbol of a plurality of modulation symbols defined by a modulation constellation, wherein the modulation constellation is defined by a tiling of a Grassmannian manifold into a plurality of cells and a Cartesian product of a plurality of auxiliary constellations, wherein the Cartesian product of the plurality of auxiliary constellations is mapped onto each cell of the plurality of cells and each auxiliary constellation defines a plurality of auxiliary symbols. The processing circuitry is further configured to transmit a modulated signal based on the modulation symbol via the communication channel to the receiving communication apparatus.

Transmitter and receiver communication apparatus for non-coherent communication

A system and method for improving quality of encoding and decoding a panoramic video. The panoramic video comprises a sequence of encoded picture frames. In panoramic video picture frames are mapped on a spherical viewing area. In the method the projection center of the encoded frame is transformed before encoding. In the decoding phase the projection center is transformed back accordingly after decoding the frame.

Apparatus and method for decoding a panoramic video

Intra-array pilot measurements are performed with an antenna array of a MIMO transceiver. The antenna array comprises N transceive antennas. The antenna array is partitioned into K groups of antennas, G, k=1, . . . , K, wherein K&#x2265;2, each group Gcomprising Nantennas, A, i=1, . . . , N, of the antenna array. For each k=1, . . . , K, Spilot measurements, M, s=1, . . . , S, are performed, wherein S&#x2265;1 and wherein each pilot measurement Mcomprises transmitting simultaneously by each antenna A, i=1, . . . , N, of the group Ga pilot signal Pand generating by each antenna A, i'=1, . . . , N, of the other groups, G, k&#x2032;&#x2260;k, a received signal Yby receiving the pilot signals Ptransmitted by the antennas A, i=1, . . . , N. The measurements can be performed in a mode for detecting whether current hardware impairment parameters are valid or in a mode for updating the hardware impairment parameters.

Determination of hardware impairment parameters for downlink channel state information estimation

The disclosure relates to an encoder for encoding a vector comprising channel state information and/or a pilot sequence. The encoder includes at least one processor; and a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to: determine a cell of a sphere mesh, wherein the cell includes the vector; determine a refined sphere mesh based on an initial sphere mesh; and determine a binary representation of a first identifier of an initial cell of the initial sphere mesh that includes the vector and a second identifier of a refined cell of the refined sphere mesh that includes the vector.

Growing community of inventors

Boulogne Billancourt, France

Alexis Decurninge