Abstract: Embodiments of the present invention disclose a data processing method. The method includes: receiving, by an encoder, a to-be-encoded information block; encoding, by the encoder, the information block in a PC-Polar encoding when a channel coding parameter is in one value range, and/or encoding, by the encoder, the information block in a CA-Polar encoding when the channel coding parameter is in another value range; and outputting, by the encoder, a result of the encoding the information block.

Abstract: A data transmission method and a network device are provided. The method can include: determining, by a first network device, that a terminal device enters an RRC inactive state; sending, by the first network device, a first message to a second network device, where the first message is used to configure the second network device, so that the second network device transmits data for the terminal device in the RRC inactive state; and receiving, by the first network device, an acknowledgment message the first message and sent by the second network device. The second network device can transmit data of the terminal device to the first network device to enable the first network device to send the data to a core network, without having to establish a path between the second network device and the core network for the second network device to send the data to the core network.

Abstract: Example information transmission methods and devices are disclosed. One example method is applied to a network device and includes determining CRC bits of to-be-sent information bits, concatenating the CRC bits and the to-be-sent information bits to obtain a first information sequence, and interleaving bits in the first information sequence in an interleaving manner or scrambling the bits in the first information sequence in a scrambling manner, to obtain a second information sequence, to ensure that bits at locations of the CRC bits after a cyclic shift cannot check bits at locations of the to-be-sent information bits after the cyclic shift. A cyclic shift is performed on the second information sequence to obtain a third information sequence, where a quantity of cyclically shifted bits is used to carry information about some bits of a system frame number, and the third information sequence is sent.

Abstract: This application provides a polar code encoding method and apparatus. The method includes: segmenting, by a sending device, a to-be-encoded sequence according to a preset rule; determining a quantity of parity check frozen bits, locations of the parity check frozen bits, a quantity of information bits, locations of the information bits, a quantity of frozen bits, and locations of the frozen bits in each segment; then placing the information bits and the frozen bits at the corresponding locations; determining values of the parity check frozen bits; then performing polar code encoding on the to-be-encoded sequence; and sending an encoded sequence. According to this method, a process of determining the quantity of parity check frozen bits and the locations of the parity check frozen bits is simplified, thereby effectively improving processing efficiency.

Abstract: Embodiments of this application provide an encoding and decoding method and device in wireless communications between network devices and user equipment. The encoding method includes: obtaining, by a transmit end, a post-polar-encoding data length corresponding to to-be-encoded data; segmenting, by the transmit end, the to-be-encoded data into at least one code block based on the post-encoding data length and a preset threshold; and performing, by the transmit end, polar encoding on each code block, and transmitting encoded data to a receive end. The embodiments of this application avoid a data transmission performance loss caused by an excessive quantity of segments.

Abstract: Embodiments of this application provide a method for coding in a wireless communication network. A communication device interleave a first bit sequence to obtain a first interleaved sequence having sequence number starting with a sequence number of 0, wherein the first bit sequence comprises bits for indicating timing, wherein the bits for indicating timing comprises a set of bits for indicating synchronization signal block index (SSBI); wherein the set of bits for indicating SSBI are placed in positions indicated by sequence numbers of 2, 3 and 5 in the first interleaved sequence. The devices add d first CRC bits on the first interleaved sequence to obtain a second bit sequence, interleave on the second bit sequence according to an interleave pattern to obtain a second interleaved sequence, and polar encode the second interleaved sequence to obtain the encoded sequence.

Abstract: Embodiments of this application provide a grant-free resource allocation method, used by user equipment to perform grant-free communication based on a first UE ID corresponding to a first cell, without initiating a resource reconfiguration request to a second network device for resource reconfiguration. Therefore, signaling overheads and a communication latency are reduced. The method in the embodiments of this application includes: when user equipment moves from a first cell to a second cell, obtaining, by the user equipment, an ID that is of a second grant-free resource area to which the second cell belongs and is broadcast by a second network device; and if the ID of the second grant-free resource area is the same as a preobtained ID of a first grant-free resource area to which the first cell belongs, performing, by the user equipment, grant-free communication based on a first UE ID corresponding to the first cell.

Abstract: A transmitter, a receiver and a method for communicating data packets. The method comprises receiving a data packet and determining if it is a re- or new transmission; and, when it is a retransmission: combining the received data packet with oldest unsuccessfully decoded data packet stored in a second memory, and decoding the combined data packet; when it is a new transmission: decoding the received data packet; checking if the decoding is successful; deleting the oldest stored data packet in the first memory; storing the decoded data packet in the first memory when the decoding is successful or storing the decoded data packet in the second memory when the decoding is not successful; and transmitting feed-back information to the transmitter.

Abstract: A grant-free transmission method, a terminal, and a network device, the method including after determining a grant-free transmission pilot and a sending attribute parameter group, mapping, by a terminal, a pilot sequence to a corresponding location on a grant-free transmission resource block unit based on a relationship between a time-frequency resource location of a pilot and the sending attribute parameter group, and mapping data to another location on the grant-free transmission resource block unit.

Abstract: A coding scheme determining method and apparatus are provided. In various embodiments, a base station device sends, to a terminal device, higher layer control signaling, physical layer control signaling, or a synchronization signal that carries coding scheme indication information. In some embodiments, a terminal device sends, to a base station device, a capability information report message that carries coding scheme indication information, so that the base station device or the terminal device can clearly and flexibly indicate a coding scheme. At least one information block size IBS greater than or equal to a preset first specified value X is determined, and an IBS is selected from the at least one IBS to code an information block of bits or a code block of the information block of bits. X and a coding scheme are determined by a scenario, information type, and/or service type.

Abstract: A grant-free transmission method, a terminal, and a network device are disclosed. In an embodiment, a grant-free transmission method includes sending, by a network device, information about P dedicated transmission resources used for grant-free transmission to a terminal, wherein P is a positive integer and P?2, detecting, by the network device, a dedicated transmission resource, and detecting, by the network device, data based on a transmission parameter set corresponding to the dedicated transmission resource when grant-free transmission is detected.

Abstract: This application relates to the mobile communications field, and in particular, to a data processing technology in a wireless communications system. A data processing method includes: generating, by a transmitting device based on a stream of bits, one layer of modulation symbol sequence that includes N modulation vectors, any modulation vector Ai includes U modulation symbols, U?2, N?i?1, and N is a positive integer; and processing, by the transmitting device, the modulation vector Ai by using a matrix Bi to generate a modulation matrix yi, each modulation matrix includes T elements in a first dimension, T is a quantity of space domain resources, T?2, and the modulation matrix yi is used to map the stream of bits stream onto the T space domain resources. According to the solutions provided in this application, space diversity can be implemented in code domain, so that transmission reliability is improved.

Abstract: Embodiments of this application provide an encoding and decoding method and device in wireless communications between network devices and user equipment. The encoding method includes: obtaining, by a transmit end, a post-polar-encoding data length corresponding to to-be-encoded data; segmenting, by the transmit end, the to-be-encoded data into at least one code block based on the post-encoding data length and a preset threshold; and performing, by the transmit end, polar encoding on each code block, and transmitting encoded data to a receive end. The embodiments of this application avoid a data transmission performance loss caused by an excessive quantity of segments.

Abstract: The present invention relates to a controller, an access node, an aggregation node and methods thereof in a radio communication network. The controller comprises: a processor configured to select a plurality of spreading codes that are non-orthogonal or short orthogonal, and a transmitter coupled with the processor. The transmitter is configured to notify at least one of an access node or an aggregation node of the plurality of spreading codes.

Abstract: Embodiments of this application provide a synchronization processing method and apparatus, and a device. The method includes: sending, by a network device, a first synchronization signal and a second synchronization signal to a terminal device within a first time unit, where frequencies of first synchronization signals in all beams are the same, and each beam has a different difference between the frequency of the first synchronization signal and a frequency of the second synchronization signal; and determining, by the terminal device, an optimal transmit beam of the network device for the terminal device and a time sequence of the optimal transmit beam based on the first synchronization signal and the second synchronization signal. This method effectively reducing synchronization detection complexity of the terminal device.

Abstract: A data transmission method, a terminal, and a network device are provided, to improve reliability of data transmission performed by a terminal in a grant-free mode. In embodiments of the present invention, a terminal sends, in a grant-free mode, first data to a network device by using a grant-free resource, and if the terminal needs to switch from the grant-free mode to a grant mode, the terminal sends, in the grant mode, second data to the network device by using a grant resource. When the terminal initially transmits the first data in the grant-free mode, if the terminal needs to switch from the grant-free mode to the grant mode, the terminal may fall back to the grant mode and transmit data in the grant mode. In this way, reliability of data transmission is improved and a success rate of data transmission is improved to a relatively great extent.

Abstract: This application relates to the field of wireless communications technologies, and discloses a polar code encoding method and apparatus, to improve accuracy of reliability calculation and ordering for polarized channels. The method includes: obtaining a first sequence used to encode K to-be-encoded bits, where the first sequence includes sequence numbers of N polarized channels, the sequence numbers of the N polarized channels are arranged in the first sequence based on reliability of the N polarized channels, K is a positive integer, N is a mother code length of a polar code, N is a positive integer power of 2, and K?N; selecting sequence numbers of K polarized channels from the first sequence in descending order of reliability; and placing the to-be-encoded bits based on the selected sequence numbers of the K polarized channels, and performing polar code encoding on the to-be-encoded bits.

Abstract: Embodiments of this application provide an encoding and decoding method and device in wireless communications between network devices and user equipment. The encoding method includes: obtaining, by a transmit end, a post-polar-encoding data length corresponding to to-be-encoded data; segmenting, by the transmit end, the to-be-encoded data into at least one code block based on the post-encoding data length and a preset threshold; and performing, by the transmit end, polar encoding on each code block, and transmitting encoded data to a receive end. The embodiments of this application avoid a data transmission performance loss caused by an excessive quantity of segments.

Abstract: The present invention provides a method and an apparatus for handling full-duplex interference. One method includes: obtaining an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs; and determining, according to the interference degree, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource among the at least two UEs. In embodiments of the present invention, a UE allowed to transmit uplink and downlink signals on the same time and frequency resource may be classified according to an interference degree that is caused when a site device performs full-duplex transmission with at least two UEs, thereby preventing the interference problem in the scenario of point-to-multipoint full-duplex communication as much as possible.

Abstract: The present invention relates to a network node and a user device. The network node (100) comprising: a processor (102) configured to: generate a check element for each user device (300z) in a group of user devices (300a, . . . ,300z); a transmitter (104) configured to: transmit the control information message (M) to the group of user devices (300a, . . . ,300z). The user device (300) comprising: a receiver (304) configured to: receive a control information message (M) addressed for a group of user devices (300a, . . . ,300z); a processor (302) configured to: perform a redundancy check on the control information message (M); derive the control information (d) from the control information message (M) and discard check elements of other user devices upon a positive redundancy check; communicate in the wireless communication system (500) based on the derived control information (d). Furthermore, the present invention also relates to corresponding methods, a computer program, and a computer program product.