Abstract: An information transmission method and an apparatus, a base station, a user equipment, a storage medium, and a program product are disclosed. The method may include: receiving a transport block (TB) sent by at least one second node, where the TB forms a TB set; obtaining information about a set of correct TBs according to the RB set; encoding the information about the set of correct TBs to obtain feedback information, where the feedback information is used to represent a reception condition of the TB sent by the at least one second node, and the encoding processing may include performing binary representation on the information about the set of correct TBs; and sending the feedback information to the at least one second node.

Abstract: This document generally relates to use of non-coaxial estimation and compensation for orbital angular momentum (OAM) communication. The transmitting node may transmit an OAM signal to a receiving node. A non-coaxial parameter estimation node may determine one or more non-coaxial parameters according to the OAM signal. The transmitting node and/or the receiving node may perform beam forming and/or channel compensation based on the non-coaxial parameters.

Abstract: A symbol sending method, a symbol receiving method, a sending device, a receiving device, and a storage medium are disclosed. The method for symbol transmission may include determining, N+1 transmission symbols of s0, s1, s2, . . . sN, according to a reference symbol and (M+1)*N bits, where 0, 1, 2, . . . , N denote indices of the transmission symbols, s0 denotes the reference symbol; a transmission symbol indexed n is determined according to an amplitude and a phase of a transmission symbol indexed n?1, and M+1 bits, and M is an integer greater than or equal to 1, N is an integer greater than or equal to 1, 1?n?N, n is an integer; and transmitting the N+1 transmission symbols.

Abstract: This patent document described methods, apparatus, and systems that relate to multiple sensing resource sets sand frequency layers for ISAC and other wireless communication systems. In one example aspect, a method for wireless communication includes determining, by a first wireless device, a plurality of sensing resource positions based on a configuration information indicative of at least one resource sets; and transmitting, by the first wireless device, a sensing signal at the sensing resource positions.

Abstract: This patent application discloses methods, apparatus, and systems that relate to position difference-based time-frequency resource patterns for wireless sensing signals. In one example aspect, a method for wireless communication includes transmitting, by a first wireless device, a signal at N resource positions, where N is a positive integer, wherein a set of position differences generated on the N resource positions includes at least a predetermined percentage of a set {0, d, 2d, . . . , (L?1)d}, wherein L is an integer larger than N, wherein d is a unit time- or frequency-domain position differences.

Abstract: This patent application discloses methods, apparatus, and systems that relate to weighting window configuration design that can be used in ISAC or other wireless communication systems. In one example aspect, a method for wireless communication includes generating, by a first wireless device, a first signal from a sequence, generating, by the first wireless device, a second signal through an operation comprising multiplying the first signal with a plurality of weighting coefficients associated with a window function; and transmitting, by the first wireless device, the second signal.

Abstract: Disclosed are a data transmission method and device, and a storage medium. The data transmission method may include: receiving an energy supply request message sent by a second communication node; and sending an energy supply request response message to the second communication node.

Abstract: Methods, apparatus, and systems that relate to rate matching scheme design for polar coding, PAC coding, or other pre-transformed polar coding are disclosed. In one example aspect, a method for digital communication includes determining, by a first node, an output bit sequence having E bits based on an input bit sequence c having K bits, wherein the output bit sequence is determined based on an output of a polar transform and an output of a repetition operation, and wherein the input of the repetition operation is a portion of a bit sequence before the polar transform. The method also includes transmitting, by the first node, a signal including the output bit sequence to a second node.

Abstract: Methods, apparatus, and systems that relate to rate matching scheme design for polar coding, PAC coding, or other pre-transformed polar coding are described. One example method includes determining, by a first node, an output bit sequence having E bits based on an input bit sequence having K bits, wherein the output bit sequence is determined by 1) performing a polar transform with H components and 2) performing either no pre-transform or at least two pre-transform operations; wherein the polar transform is based on H polar matrices G(N0), G(N1), . . . , G(NH?1), wherein H, K and E are integers greater than 1, wherein a polar matrix G(Ni) is of size Ni. The method also includes transmitting, by the first node, a signal including the output bit sequence to a second node.

Abstract: Embodiments of the present disclosure provide a multi-user detection method and apparatus for cell-free Multiple-Input Multiple-Output (MIMO). The method includes: receiving, by a Central Processing Unit (CPU) of a cell-free MIMO system, an MRC merged data symbol stream SMRC=HHY of K users transmitted by an Access Point (AP), and multiplying SMRC by a conjugate transpose matrix SMRCH of SMRC to obtain a K*K matrix SMRCSMRCH; and performing singular value decomposition on the matrix SMRCSMRCH to obtain a unitary matrix V and a diagonal matrix A, obtaining a diagonal matrix ? according to the diagonal matrix A, and estimating sending-end data symbols of the K users by a formula {tilde over (S)}=V?VHSMRC.

Abstract: Methods, apparatus, and systems that relate to rate matching scheme design for polar coding, PAC coding, or other pre-transformed polar coding are disclosed. In one example aspect, a method for digital communication includes determining, by a first node, an output bit sequence having E bits based on an input bit sequence having K bits, wherein the output bit sequence is determined by performing a polar transform with H components and a pre-transform; wherein the polar transform is based on H polar matrices G(N0), G(N1), . . . , G(NH?0), wherein E, K, H are integers greater than 1, wherein a polar matrix G(N0) is of size Ni. The method also includes transmitting, by the first node, a signal including the output bit sequence to a second node.

Abstract: This disclosure relates to methods and devices for configuring guard subcarriers in transmission subbands to reduce interband interference in a wireless communication network. In one implementation, the method may include determining that a first subcarrier spacing for a first radio frequency transmission band is less than a second subcarrier spacing for a second radio frequency transmission band, and the first radio frequency transmission band is close to the second radio frequency transmission band in frequency spectrum. The method may further include configuring a subcarrier of the first radio frequency transmission band as a guard subcarrier carrying dummy data when the first radio frequency transmission band and the second radio frequency transmission band are simultaneously used to transmit data loads.

Abstract: Methods, apparatus, and systems that relate to Polarization-Adjusted Convolutional (PAC) coding with variable lengths are disclosed. In one example aspect, a method for digital communication includes determining, by a first node, an output bit sequence having E bits based on an input bit sequence having K bits. The output bit sequence is determined based on a transform that is applied prior to applying a Polar transform having a size of N. The transform is based on at least one index set that is a subset of a set of bit indices. The set of bit indices comprises all non-negative integers that are less than N and wherein K<N and K<E. The method also includes transmitting, by the first node, a signal including the output bit sequence to a second node.

Abstract: A data modulation method, a communication device and a storage medium are disclosed. The data modulation method includes: performing a preset modulation operation on B consecutive data blocks, and configuring the B consecutive data blocks to have a same head-end reference signal sequence and/or a same tail-end reference signal sequence; inserting Z zeros between adjacent time domain data of the B consecutive data blocks; performing a filtering operation on the B consecutive data blocks into which Z zeros have been inserted, and transmitting the filtered data on a physical resource, where B is greater than or equal to 2 (i.e., B?2), and Z is greater than or equal to 0 (i.e., Z?0).

Abstract: A data transmission method includes transmitting to-be-transmitted data in N frequency domain resource blocks, where each of the N frequency domain resource blocks includes K(n) subcarriers, where n=1, 2, . . . , N, N is greater than or equal to 1, and K(n) is greater than or equal to 1; performing inverse Fourier transform and an upsampling operation on the to-be-transmitted data in each of the N frequency domain resource blocks to form N groups of data sequences; and transmitting the N groups of data sequences.

Abstract: Provided is an information transmission method, apparatus and system. The information transmission method includes: obtaining, by a first communication node, a control channel description list which includes description information of N control channels, where N is a positive integer and the description information of each of the control channels includes one or more of: control channel configuration information, reference signal configuration information, link resource configuration information, operating bandwidth configuration information, puncturing configuration information, frequency hopping configuration formation, transmission time interval length configuration information, power control configuration information and beam configuration information; and sending, by the first communication node, the control channel description list to a second communication node.

Abstract: Provided are a data modulation method and apparatus, a device, and a storage medium. The method includes: a modulation manner is configured, and data is modulated by using the modulation manner. That the constellation point modulation symbol of the modulation manner is formed by combining the first group of constellation point modulation symbols and the second group of constellation point modulation symbols includes: adjusting a phase of the second group of constellation point modulation symbols based on a phase of the first group of constellation point modulation symbols; and forming, based on a combination of the first group of and adjusted second group of constellation point modulation symbols, the constellation point modulation symbol of the modulation manner.

Abstract: Provided are a method for determining a service access point, an information sending method, a communication node, and a storage medium. The method for determining a service access point includes the operations below. Indication parameter information is acquired; the indication parameter information includes the first indication information, the second indication information, and the third indication information. The priority order of a terminal device is determined according to the first indication information. Based on the second indication information and the third indication information, a service AP of each terminal device is determined in sequence according to the priority order.

Abstract: A method and an apparatus for determining a timing advance, and a device and a non-transitory computer-readable storage medium. The method may include: obtaining, by a terminal device, timing advance (TA) list information, where the TA list information is sent to the terminal device by a base station or is configured by default to be stored in the terminal device, and the TA list information indicates at least one TA list, each TA list including at least one TA value; obtaining, by the terminal device, a target TA value according to the TA list information; and adjusting, by the terminal device, a TA for uplink channel transmission using the target TA value.

Abstract: Provided are a communication method and device and a storage medium. The communication method applied to a first communication node includes determining a first-type subcarrier set and a second-type subcarrier set, where each first-type subcarrier in the first-type subcarrier set is in a same resource block as at least one second-type subcarrier in the second-type subcarrier set, a first-type subcarrier in the first-type subcarrier set is configured for transmission of communication information and sensing information, and a second-type subcarrier in the second-type subcarrier set is configured for the transmission of the communication information; and sending the first-type subcarrier set and the second-type subcarrier set to a second communication node.