Abstract: According to some embodiments, a method of operation of a wireless transmitter in a wireless communication network comprises: encoding a set of information carrying data bits u of length K with a linear outer code to generate a set of outer parity bits p along with the data bits u; interleaving the set of outer parity bits p and the data bits u using a predetermined interleaving mapping function that depends on the number of data bits K and is operable to distribute some bits of the set of parity bits p in front of some data bits u; and encoding the interleaved bits using a Polar encoder to generate a set of encoded bits x. Various interleaving mapping functions are disclosed.

Abstract: According to certain embodiments, a method by a transmitter is provided for adaptively generating precoder bits for a Polar code. The method includes acquiring at least one configuration parameter upon which a total number of precoder bits depends. The at least one configuration parameter comprising at least one of an information block length K, a code block length N, and/or a code rate R=K/N. The total number of precoder bits is determined, and the precoder bits for a code block are generated according to the determined total number of precoder bits. The precoder bits are placed within the code block.

Abstract: According to some embodiments, a method of operation of a transmit node in a wireless communication system comprises performing polar encoding of a set of K information bits to thereby generate a set of polar-encoded information bits. The K information bits are mapped to the first K bit locations in an information sequence SN. The information sequence SN is a ranked sequence of N information bit locations among a plurality of input bits for the polar encoding where N is equivalent to a code length. A size of the information sequence SN is greater than or equal to K. The information sequence SN is optimized for the specific value of the code length (N). The method may further comprise transmitting the set of polar-encoded information bits.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.

Abstract: Systems and methods for multi-stage downlink control information transmission in a manner that supports existing polar codes are provided. In some embodiments, a method of operation of a radio access node in a cellular communications network to transmit multi-stage downlink control information comprises transmitting a first part of a multi-stage downlink control information in a first Orthogonal Frequency Division Multiplexing (OFDM) symbol and transmitting a second part of the multi-stage downlink control information in a second OFDM symbol that is subsequent to the first OFDM symbol. Cyclic Redundancy Check (CRC) bits are attached to the first part of the multi-stage downlink control information and/or CRC bits are attached to the second part of the multi-stage downlink control information. In some embodiments, the first part and/or the second part of the multi-stage downlink control information is encoded using a polar encoder.

Abstract: Systems and methods are disclosed for performing polar encoding of a number of information bits for transmission in a wireless communication system in a manner that is optimized for a specific code length. In some embodiments, a method of operation of a transmit node in a wireless communication system comprises performing polar encoding of a set of K information bits to thereby generate a set of polar-encoded information bits where the K information bits are mapped to the first K information bit locations specified in an information sequence SN which is a ranked sequence of N information bit locations among a plurality of input bits for the polar encoding where N is equivalent to a code length, a size of the information sequence SN is greater than or equal to K, and the information sequence SN is optimized for a specific value of the code length N.

Abstract: According to some embodiments, a method for use in a wireless transmitter of adaptive cyclic redundancy check (CRC) length selection comprises: obtaining a system parameter related to a number of beam sweeps used by the wireless transmitter for transmitting a wireless signal; selecting a CRC length based on the obtained system parameter; selecting a CRC polynomial of the selected length; generating CRC bits from time-dependent or time-independent information bits using the CRC polynomial; concatenating the generated CRC bits with the time-dependent or time-independent information bits; encoding the concatenated bits; and transmitting the encoded bits to a wireless receiver. The system parameter may comprise: a carrier frequency; a number of transmit antenna elements; a number of receive antenna elements; a transmitter antenna azimuth configuration; a transmitter antenna elevation configuration; an antenna polarization type; a beam scanning algorithm; and a cell type.

Abstract: The application relates to the adaption of the length of the cyclic redundancy check (CRC) code in the context of 3GPP NR. In 3GPP NR, the length of the uplink and downlink control information (UCI, DCI) significantly varies. Therefore, it is necessary to select a CRC code of appropriate size or length. Accordingly, a method (200) for use in a wireless transmitter comprises: determining an amount of data to transmit (212), determining a cyclic redundancy check (CRC) polynomial length based on the amount of data to transmit (214); encoding the data using a CRC of the determined polynomial length (216); and transmitting the encoded data (216). The data to transmit may not only comprise control channel data but also user data and may be encoded with a Polar code or a low-density parity check (LDPC) code.

Abstract: A method in a node is disclosed. The method comprises determining (1304) a first route from a first source node (505 A) to a destination (510), the first route comprising one or more relay nodes (515, 615). The method comprises determining (1308) an energy-harvesting routing metric, the energy-harvesting routing metric for use in determining a second route from a second source node (505B) to the destination (510). The method comprises determining (1312) the second route from the second source node (505B) to the destination (510), the determined second route comprising one or more relay nodes (515, 615) selected to maximize the determined energy-harvesting routing metric.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.

Abstract: Systems and methods are disclosed herein for puncturing Polar-encoded bits. In some embodiments, a method of operation of a radio node that utilizes a Polar encoder comprising performing Polar encoding of a plurality of bits to provide a plurality of Polar-encoded code bits and puncturing the plurality of Polar-encoded code bits using a hybrid puncturing scheme to provide a plurality of rate-matched Polar-encoded code bits, wherein the hybrid puncturing scheme uses different puncturing patterns for different code rate regions.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating using a first set of one or more signaling beams, wherein communicating includes performing beamforming for one or more signaling beams of the first set based on a set of beam signaling characteristics. Each beam signaling characteristic pertains to a reference beam. The disclosure also pertains to related devices and methods.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes communicating utilising signaling, wherein communicating utilising signaling is based on performing pulse-shaping pertaining to the signaling. The disclosure also pertains to related devices and methods.

Abstract: A transmitter and a method therein for transmitting discovery signals to a receiver. The transmitter and the receiver are comprised in a radio communications system. The transmitter transmits two or more discovery signals over two or more directions. Each discovery signal is configured to span over a fraction of a carrier bandwidth.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network. The method includes transmitting pulse-shaped signaling based on a pulse-shaped waveform using a transmission power, the transmission power being based on an Error Vector Magnitude (EVM) parametrisation for pulse-shaped signaling. The disclosure also pertains to related devices and methods.

Abstract: A transmitter and a method therein for transmitting discovery signals to a receiver. The transmitter and the receiver are comprised in a radio communications system. The transmitter transmits two or more discovery signals over two or more directions. Each discovery signal is configured to span over a fraction of a carrier bandwidth.

Abstract: The disclosure relates to radio access systems, and more specifically to methods for media access in radio access systems. The disclosure relates to a method, performed in a first node 20b, 20c, 20d in a wireless communication system, of accessing a shared media for directive signal transmission from the first node, the method comprises three steps. The first step is receiving, from a second node, a pilot signal announcing a directive signal transmission to or from the second node. The second step is predicting based on information in the received pilot signal, a collision rate between an intended directive signal transmission from the first node and the announced directive signal transmission, the information defining the channel resources used by the announced directive signal transmission and the third step is accessing the shared media based on the predicted collision rate.

Abstract: According to some embodiments, a method in a wireless transmitter comprises: obtaining a first set of bits (comprising a non-time-varying component) for wireless transmission; concatenating a second set of bits (comprising a time-varying component (e.g., beam identifier)) to the first set of bits; encoding the concatenated first and second set of bits using a channel code; and transmitting the encoded bits to a wireless receiver. In some embodiments, transmitting the encoded bits to the wireless receiver comprises transmitting a first beam. The method may further comprise: concatenating a third set of bits (comprising a time-varying component (e.g., beam identifier)) to the first set of wireless bits; encoding the concatenated first and third set of bits using a channel code; and transmitting the encoded bits to a wireless receiver using a second beam.

Abstract: There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method includes transmitting millimeter-wave signaling in a transmission timing structure. The transmission timing structure includes N time interval elements sequentially ordered in time. The millimeter-wave signaling includes N separate signaling structures, each signaling structure being transmitted in a different one of the time interval elements; N being an integer multiple of 2. A first subset of the N separate signaling structures corresponds to control signaling, wherein the subset includes 2{circumflex over (?)}m signaling structures consecutive in time beginning with the signaling structure of the first time interval element; m being an integer such that 2{circumflex over (?)}m<=N. A second subset of the N separate signaling structures corresponds to data signaling. The second subset comprises 0 or an integer number of signaling structures.

Abstract: The disclosure relates to radio access systems, and more specifically to methods for media access in radio access systems. The disclosure relates to a method, performed in a first node 20b, 20c, 20d in a wireless communication system, of accessing a shared media for directive signal transmission from the first node, the method comprises three steps. The first step is receiving, from a second node, a pilot signal announcing a directive signal transmission to or from the second node. The second step is predicting based on information in the received pilot signal, a collision rate between an intended directive signal transmission from the first node and the announced directive signal transmission, the information defining the channel resources used by the announced directive signal transmission and the third step is accessing the shared media based on the predicted collision rate.