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: The application relates to the adaptation 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: According to some embodiments, a method in a wireless device comprises obtaining a set of information bits for wireless transmission and dividing the set of information bits into one or more subsets of information bits. For each subset, generating extra cyclic redundancy check (CRC) bits using a CRC polynomial capable of generating N CRC bits. The extra CRC bits for each subset comprise less than N CRC bits. The method further comprises: generating a final set of N or less CRC bits for the set of information bits using the CRC polynomial; generating a set of coded bits by encoding the set of information bits for wireless transmission, together with the extra CRC bits and the final set of CRC bits, using a polar encoder; and transmitting the set of coded bits using a wireless transmitter.

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: 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: 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: Methods and devices for puncturing of a polar code in a wireless network, wherein nested puncturing sets are determined based on a puncturing order which is determined based on a reliability order of information bit channels, so that only one index sequence needs to be stored for both the determination of the information set and the determination of the punctured set and so that puncturing does not require to adjust the information set at error prone indexes corresponding to puncturing indexes. The puncturing order might start with indexes corresponding to high reliability bit channels or to low reliability bit channels.

Abstract: A method of manufacturing membranes consisting essentially of an ion-selective material is disclosed. The method comprises: providing a spreadable base material; dispensing a quantity of the base material onto a top side of a tray, wherein the top side includes a set of coplanar flat surface segments, each having a surface area corresponding to a disc area of one of the membranes to be manufactured, and wherein at least the top side of the tray consists essentially of a non-adhesive material; distributing the dispensed base material across the top side of the tray such that a thickness of the distributed base material covering the coplanar surface segments corresponds to a predetermined thickness; transforming the thus-distributed base material into ion-selective material comprising one or more coplanar sheets covering the coplanar surface segments; and removing individual membranes from the tray, each defining a disc-shaped section of the ion-selective material.

Abstract: A method of and an apparatus for manufacturing a measuring cell comprising a tube having a first end capped by a membrane of an ion-selective material, comprising the steps of: providing a paste comprising all constituents of the ion-selective material; mounting the tube onto a stick with a tip such that the stick extends through the tube; dispensing an amount of the paste onto the tip; heating the first end of the tube and the dispensed paste to a temperature causing the dispensed paste to melt and the thus-produced melt to form a film covering the tip and an end surface of the first end of the tube; transforming the film into the membrane joined to the tube by cooling the first end of the tube and the film to a temperature below a melting point of the ion-selective material; and separating the thus-manufactured measuring cell from the stick.

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 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 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 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: 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: 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: 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 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: 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.