Abstract: Some embodiments of the present disclosure provide for configuration of a sensing signal on the basis of received information regarding a preferred direction or index of sensing signal. The configured sensing signal may be indicated to another device using a predetermined coordinate system. The indication may be transmitted over a communication link ahead of the transmission of the sensing signal.

Abstract: This application provides an intelligent component update method and a communication apparatus. A transmitting end sends indication information about one or more intelligent components to a receiving end. The indication information indicates a to-be-updated intelligent component of the transmitting end and/or a to-be-updated intelligent component of the receiving end. The to-be-updated intelligent component of the transmitting end belongs to a first intelligent module, and the to-be-updated intelligent component of the receiving end belongs to a second intelligent module. Based on the indication information, a to-be-updated indication can be performed for one or more intelligent components in an intelligent module, so that update efficiency and reliability of the intelligent module can be improved without affecting learning performance of the intelligent module, and update costs and system resource waste can be reduced.

Abstract: A first sensing coordinator in a radio access network may communicate a first signal with a second sensing coordinator through an interface link. The first sensing coordinator may include a sensing protocol layer, and may communicate the first signal through the interface link using the sensing protocol. Similarly, a second sensing coordinator may communicate a first signal with a first sensing coordinator in a radio access network through an interface link, with the second sensing coordinator including a sensing protocol layer and communicating the first signal through the interface link using the sensing protocol. A sensing device or apparatus may access an interface link through a radio access network and communicate a first signal, including a sensing configuration or sensing data, with a sensing coordinator that has a sensing protocol layer. The communicating may involve communicating the first signal through the interface link using a sensing protocol.

Abstract: Some embodiments of the present disclosure provide a transmit receive point (TRP) with sensing abilities. Through sensing over time, the TRP can obtain details of past locations of a user equipment (UE) and a current location of the UE. Furthermore, the TRP can predict a future location for the UE. Accordingly, the TRP can proactively arrange for switching of beam directions used for both downlink channels and uplink channels. Aspects of the present application relate to a unified physical layer beam switch mechanism for intra-cell mobility and inter-cell mobility. Intra-cell beam switching, wherein a to-be-activated beam is from the same cell as the existing beam, may be triggered by physical layer signaling or media access control signaling. Inter-cell beam switching, wherein a to-be-activated beam is from a different cell than the existing beam, may be triggered by physical layer signaling or media access control signaling.

Abstract: Some embodiments of the present disclosure provide proactive beam failure recovery initiation. The proactive initiation may occur at the transmit receive point or at the user equipment. Beam failure, which leads to the beam failure recovery initiation may be proactively detected using sensing or artificial intelligence. A part of any beam failure recovery process is new beam identification. Such new beam identification may be carried out in a traditional manner, using reference signal beam measurement and training. Alternatively, new beam identification may be carried out in a proactive manner, using sensing or artificial intelligence. When indicating a direction for the new beam, a coordinate system may be used. The indicating may reference an absolute beam direction or a differential beam direction by using the coordinate system.

Abstract: Some embodiments of the present disclosure provide a transmit receive point (TRP) with sensing abilities. Through sensing over time, the TRP can obtain details of past locations of a user equipment (UE) and a current location of the UE. Furthermore, the TRP can predict a future location for the UE. Accordingly, the TRP can proactively arrange for switching of beam directions used for both downlink channels and uplink channels.

Abstract: Some embodiments of the present disclosure provide beam indication solutions. A first solution relates to absolute beam indication and a second solution relates to differential beam indication. Through, for example, information determined using sensing, these beam indication solutions allow for information transfer between transmit receipt point and user equipment to occur on a relatively narrow beam. By reducing scanning, a solution based on beam indication aspects of the present application reduce overhead and, consequently, reduce latency. Another benefit of a narrow beam is improved spectral efficiency. The sensing may allow for a relationship between a beam and an external environment to be established. The relationship allows for a beam to be indicated in a direct and agile manner.

Abstract: This application discloses a scrambling code sequence generation method and apparatus, and belongs to the field of communication technologies. The method includes: determining a scrambling code sequence based on a configuration parameter of a transmission reception point TRP, where different TRPs correspond to different configuration parameters; and scrambling or descrambling data by using the scrambling code sequence. This application is used for data transmission, resolves a problem in a related technology that system performance is relatively poor because user equipment cannot better obtain, from received data, data sent by a TRP, and improves system performance.

Abstract: Embodiments of the present invention provide a channel state information obtaining method and a device, where the method includes: determining, by a base station according to radio resource usage, a special timeslot in a frequency range used for downlink data transmission; sending special-timeslot configuration information to user equipment, where the special-timeslot configuration information is used to configure the user equipment to send the uplink physical signal over a downlink frequency band in the special timeslot; and performing channel estimation according to the uplink physical signal after receiving the uplink physical signal sent by the user equipment, to obtain channel state information. Compared with a technical solution in the prior art in which user equipment obtains channel state information and then feeds back the channel state information to a base station, system overheads caused in obtaining, by the base station, the channel state information are reduced.

Abstract: Embodiments of the present disclosure relate to the communications field, and provide a signal transmission method and apparatus, which can effectively resolve a resource waste problem of user data resource elements and improve system power utilization. The method includes: determining, by a base station, a first parameter value of a user data resource element (RE), an initial parameter value of a demodulation reference signal resource element (DMRS RE), and a compensation parameter value of the DMRS RE; determining, by the base station according to the initial parameter value and the compensation parameter value, a second parameter value required for transmitting a DMRS; and transmitting, by the base station, the DMRS, the user data, and the compensation parameter value to user equipment, so that the user equipment demodulates the user data.

Abstract: This application relates to the field of communications technologies, and discloses a transport block generation method and apparatus. The method includes: determining a TBS based on an MCS of a receiving device, a resource characteristic of an RB allocated to the receiving device, and a quantity of symbols, where the quantity of symbols is a quantity of symbols included in each RB, and each RB includes a same quantity of symbols; and generating a TB based on a TBS. TBS is determined based on the MCS of the receiving device, a quantity of RBs allocated to the receiving device, and the quantity of symbols included in the RB, and the TB is generated based on the determined TBS. The quantity of symbols included in the RB is considered in determining the TBS. Therefore, the determined TBS may vary with the quantity of symbols included in the RB.

Abstract: According to embodiments of the present invention, a quantity of available state values of a reference signal configuration is increased by indicating a dual-codeword transmission mode and two single-codeword transmission modes, where the two single-codeword transmission modes are distinguished by using a new data indicator NDI. Therefore, higher-rank (such as 16-layer or 24-layer) MU-MIMO can be supported, increasing system spectral efficiency significantly, and improving MU-MIMO configuration flexibility and resource scheduling effectiveness.

Abstract: Embodiments of the present application provide a channel state information feedback method, device, and system. The method includes: generating an uplink signal, where the uplink signal carries information for identifying multiple codewords and weights of the codewords; and transmitting the uplink signal to a base station (BS), so that the base station estimates a downlink channel based on the multiple codewords and weight information of the codewords in the uplink signal. In the embodiments of the present application, a user equipment UE side reports multiple codewords and weight information of the multiple codewords. This can resolve a problem in the prior art that precision of downlink channel estimation performed by a BS side is relatively low because only a single codeword is reported, and can effectively enhance precision indicated by channel information, without increasing complexity of a codebook design and implementation.

Abstract: Embodiments of the present application disclose data frame implementation methods and apparatus. In one embodiment, a method includes: configuring a data frame used for radio signal transmission, where the data frame includes at least two subframes, each subframe has a fixed length, the at least two subframes may be mapped to at least two frequency bands with different subcarrier spacings, and a quantity of symbols included in each subframe is corresponding to a subcarrier spacing of a frequency band to which the subframe is mapped. According to embodiments of the present application, various service requirements of 5G mobile communication can be met and a service level of the 5G mobile communication can be improved.

Abstract: This application discloses a method and an apparatus for transmitting a pilot signal, so that more flexible resource configuration can be achieved, thereby improving resource usage. The method includes: determining, by a transmit end device based on prestored N pilot patterns, a target time-frequency resource for transmitting a pilot signal, where the target time-frequency resource corresponds to a total quantity of layers of a to-be-transmitted data stream, the N pilot patterns are different from each other, and N is a natural number greater than or equal to 1; and sending, by the transmit end device, indication information to a receive end device, where the indication information is used to instruct the receive end device to transmit the pilot signal to the transmit end device based on the target time-frequency resource.

Abstract: This application discloses a scrambling code sequence generation method and apparatus, and belongs to the field of communication technologies. The method includes: determining a scrambling code sequence based on a configuration parameter of a transmission reception point TRP, where different TRPs correspond to different configuration parameters; and scrambling or descrambling data by using the scrambling code sequence. This application is used for data transmission, resolves a problem in a related technology that system performance is relatively poor because user equipment cannot better obtain, from received data, data sent by a TRP, and improves system performance.

Abstract: A radio access node (RAN) and method of operation of the RAN are provided. The RAN includes a massive multiple-input-multiple-output (MIMO) antenna array. The RAN includes a processing hardware configured to carry out a communication method that includes receiving a digital data stream for transmission on a time-frequency resource. The RAN precodes the digital data stream using a digital beamforming stage to render a precoded digital downlink data stream for downlink data stream signal transmission to a user equipment. The digital beamforming stage includes a first precoding stage configured according to a long-term matrix, and a second precoding stage configured according to a short-term matrix. The RAN is further configured to generate a downlink data stream transmission signal to the user equipment in accordance with the precoded digital downlink data stream.

Abstract: Embodiments of the present invention provide a precoding information obtaining method and a device. The method includes: separately precoding, by a network device by using N sub-codebooks, a pilot group including K pilots to obtain N precoded pilot groups, where the sub-codebooks are subsets of a precoding codebook, the precoding codebook includes M precoding vectors, each sub-codebook includes K precoding vectors; sending, by the network device, a precoded pilot group to a terminal device in each of W RB groups; and receiving, by the network device, precoding information fed back by the terminal device for any one of W precoded pilot groups. According to the precoding information obtaining method and the device, a quantity of pilot signals sent by the network device in each RB group is reduced, and pilot overheads in each RB group are reduced.

Abstract: Embodiments of the present invention provide a method for obtaining channel spatial characteristic information, and a base station. The method includes: separately sending, by a first base station, a channel spatial characteristic request and an identity of to-be-measured user equipment (UE) to multiple second base stations, where the channel spatial characteristic request is used to instruct the second base station to perform channel spatial characteristic information measurement on the to-be-measured UE; and receiving, by the first base station, channel spatial characteristic indication information sent by the multiple second base stations, where the channel spatial characteristic indication information carries channel spatial characteristic information of the to-be-measured UE.

Abstract: Embodiments of the present invention disclose a precoding information collection method and a transmission device and relate to the communications field. A specific solution is: precoding, by a transmit side, a first pilot signal according to a first precoding matrix, and sending a precoded first pilot signal to a receive side, where the first precoding matrix is the same as a precoding matrix used for current data transmission; precoding, by the transmit side, N second pilot signals according to N second precoding matrices, and sending N precoded second pilot signals to the receive side, where N is an integer greater than or equal to 1, the second precoding matrices used for precoding the second pilot signals are different from each other, and the N second precoding matrices are different from the first precoding matrix; and receiving, by the transmit side, precoding feedback information sent by the receive side.