Huawei Technologies Co., Limited

Renaud-Alexandre Pitaval

Branislav M Popovic

Majid Nasiri Khormuji

Fredrik Berggren

Yi Qin

Peng Wang

A client device for wireless communication includes a transceiver and a processor. The transceiver is configured to receive frequency resource information to indicate a set of frequency resources for a physical random access channel (PRACH) preamble transmission. The frequency resource information includes at least one of: an interlace information indicating at least one of an interlace of a block-interlaced frequency-division multiplexing (B-IFDM) allocation, a resource element allocation information indicating a subset of resource elements within each block of the at least one B-IFDM interlace, and a resource element spacing information, such that an at least one resource element within at least one block of the at least one B-IFDM interlace is allocated for the transmission of one PRACH preamble according to a tone-interlaced frequency-division multiplexing (T-IFDM) allocation. The resource element allocation is repeated in each block of the at least one B-IFDM interlace.

Devices, methods and computer programs for saving frequency resources in wireless communications

Devices, methods and computer programs for wireless communications with rotational beam management are disclosed. Information from past beam tracking stages can be used for a next beam tracking stage, since a next beam codebook to be used for beam scanning depends on an earlier beam codebook.

Devices, methods and computer programs for wireless communication with rotational beam management

A network access node and a client device for generating and using cubic phase polynomial sequences (s, s) of length L with a third order coefficient value abelonging to the subset of sequences () are described. The network access node transmits a control message to the client device, wherein the control message indicates the cyclical shift value Nand the third order coefficient value a. The client device receives the control message and determines a cubic polynomial phase sequence (s) belonging to the subset of sequences () based on the cyclical shift value Nand the third order coefficient value a. The client device thereafter transmits the determined cubic polynomial phase sequence (s) as a random access preamble to the network access node.

Network access node and a client device for generating and using randoms access sequences

The disclosure relates to a first communication device for a wireless communication system, the first communication device comprising: a processor, a cascade precoder including an outer precoder and an inner precoder, and a transceiver; wherein the processor is configured to determine the inner precoder; wherein the transceiver is configured to transmit a first pilot sequence to a second communication device; wherein the transceiver is configured to receive a first channel estimation from the second communication device; wherein the processor is configured to determine the outer precoder based on the first channel estimation; wherein the transceiver is configured to transmit at least one of a data sequence and a pilot sequence to the second communication device.

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Kista, Sweden

Renaud-Alexandre Pitaval