Abstract: A method includes: communicating, by a base station, first UE specific information of UE with the UE in a UE source operating bandwidth resource; and sending, by the base station, information about a UE target operating bandwidth resource of the UE to the UE in a UE calibration bandwidth resource of the UE, where the UE target operating bandwidth resource is used by the base station to communicate second UE specific information of the UE with the UE, and the UE source operating bandwidth resource is not completely the same as the UE calibration bandwidth resource.

Abstract: A method, a device and a communication system for processing a common search area are provided. The method includes: acquiring resource indication information about a first common search area of a control channel, or resource indication information about a first common search area and resource indication information about at least one second common search area; and determining, according to the resource indication information about the first common search area, or the resource indication information about the first common search area and the resource indication information about at least one second common search area, a location of the first common search area, or locations of the first common search area and at least one second common search area.

Abstract: A sidelink (SL) configuration for SL communications directly between a communication terminal and another communication terminal is separate from a communication network link configuration for communications with network equipment in some embodiments. An SL configuration, which could be an SL reconfiguration or an SL preconfiguration for use by the communication terminal after the terminal transitions from in coverage to out of coverage, could be transmitted through network/terminal signaling, and detailed examples of such signaling are disclosed herein. An SL configuration could be or include an SL bandwidth part (BWP) configuration and an SL communication resource configuration, such as one or more resource pools, within the SL BWP. An SL configuration that is determined and transmitted by network equipment to one or more terminals could also or instead involve a common or initial SL configuration to be used for SL communications by multiple communication terminals.

Abstract: Embodiments of the present invention relate to the field of communications technologies. The method includes: determining, according to a fractional physical resource block (F-PRB) resource index allocated to UE and according to a quantity of F-PRBs included in each physical resource block PRB pair, an antenna port used to send data to the UE; sending downlink control information (DCI) to the UE, where a transmission format of the DCI is DCI 1A, and carries the F-PRB resource index that is allocated to the UE; and sending the data to the UE by using the antenna port.

Abstract: This application provides a data transmission method and apparatus, to improve accuracy of determining a transport block size and help improve reliability of data transmission. The method includes: determining, by a communications device, a target transport block size based on configuration information, where the configuration information corresponds to a first bandwidth resource, and the configuration information includes at least one of the following: at least one resource element quantity and a modulation and coding scheme MCS table, and the first bandwidth resource is some of resources in a system bandwidth; and transmitting, by the communications device, data on the first bandwidth resource based on the target transport block size.

Abstract: Embodiments of this application provide a method and apparatus for determining a transport block size. The method includes: obtaining a target overhead value based on a target time-frequency resource and one or more of at least two overhead values, where the target time-frequency resource is used for uplink data transmission or downlink data transmission and includes one or more time-frequency resource units, and each overhead value is corresponding to at least one time-frequency resource unit; and determining a transport block size based on the target overhead value. It can be learned that, according to the method and apparatus for determining a transport block size provided in the embodiments of this application, a corresponding target overhead value may be determined for each of different target time-frequency resources. This is not only applicable to a scenario in which a dynamic time-frequency resource is scheduled, but also improves accuracy of determining the transport block size.

Abstract: Systems and methods are provided for configuring an alignment between various resource grids. A base station transmits alignment information between a first resource grid or a first transmission using the first resource grid, and a second resource grid and a third resource grid. The first resource grid uses a first sub-carrier spacing (SCS) from a first set of SCSs, the second resource grid uses a second SCS from a second set of SCSs, the third resource grid uses a third SCS from the second set of SCSs. The base station transmits a synchronization sequence block (SSB) using the first resource grid, and the base station transmits a first physical downlink shared channel (PDSCH) in assigned resource blocks using at least one of the second resource grid and the third resource grid. A user equipment receives the alignment information.

Abstract: This application provides example communication methods, terminal devices, and network devices. One example method includes configuring, by a network device, a first bandwidth part BP and a second BP for a terminal device. The network device then sends a first TB to the terminal device. When the first BP and the second BP correspond to a same physical parameter, the first TB is mapped onto the first BP and the second BP. When the first BP and the second BP correspond to different physical parameters, the network device further sends a second TB to the terminal device, where the first TB is mapped onto the first BP, and the second TB is mapped onto the second BP.

Abstract: A resource configuration method, an apparatus, and a system are disclosed. The method includes: determining a reserved resource element (RE) in a resource unit, where the reserved RE is included in a reserved resource; and transmitting data on all or some REs other than the reserved resource. The resource unit includes X resource blocks (RBs) in frequency domain and includes Y symbols in time domain, where X and Y are positive integers. According to the resource configuration method provided in the present disclosure, a data conflict between different terminals during data transmission can be reduced, and resource utilization can be improved.

Abstract: A communication method and a communications apparatus are provided. The method includes: sending, by a network device, indication information to a terminal, where the indication information is used to indicate at least one second BP associated with a first BP; and performing signal transmission, by the network device, with the terminal on the first BP and the at least one second BP. It may be learned that the network device indicates, to the terminal by using the indication information, the at least one second BP associated with the first BP, so that the network device and the terminal can transmit signals on BPs that are associated with each other. In addition, there may be a plurality of second BPs associated with the first BP.

Abstract: This application relates to the field of wireless communication, and in particular, to a wireless communication method and a device. This application provides a method, including: if a time unit used to transmit control information is different from a time unit used to transmit data, and the control information is related to the data, determining a time sequence based on a same time unit.

Abstract: A communication method and a device are provided, to reduce power consumption of a terminal device and reduce system overheads. A communication method can include, at least, determining, by a terminal device, that a plurality of BPs are activated, where the plurality of BPs are in a same carrier, the plurality of BPs include a first BP and a second BP, a first CSS is configured in the first BP, and common DCI is configured in the first CSS. The communication method can further include detecting, by the terminal device, the common DCI only in a second CSS when the second CSS is configured in the second BP, where the common DCI is configured in the second CSS.

Abstract: A method, system, and device for resource block (RB) indexing in a user equipment (UE) is provided. In an embodiment, the method includes obtaining, at the UE, a UE-independent frequency reference point. The method also includes determining, by the UE, a UE-independent index of an RB according to the UE-independent frequency reference point.

Abstract: This application provides a data communication method, a terminal, and a base station. In one embodiment, the terminal receives a first demodulation reference signal based on a first physical resource block index, wherein the first physical resource block index is determined based on a first location in frequency domain, and the first demodulation reference signal is usable for demodulating a first data channel for carrying a system information block; the terminal sends and/or receives a second demodulation reference signal based on a second physical resource block index, wherein the second physical resource block index is determined based on a second location in frequency domain, and the second demodulation reference signal is usable for demodulating a second data channel other than the first data channel.

Abstract: A method and an apparatus for determining a transport block size, the method including determining, by a communications device, a type of an available resource element (RE) for data scheduling according to a quantity of available REs in one slot and one resource block (RB), and determining, by the communications device, a transport block size of data according to the type of the available RE.

Abstract: Methods and devices for configuring an initial active downlink bandwidth part as part of an initial access procedure are provided. In one provided method, a base station broadcasts a synchronization signal block (SSB) that includes a control resource set (CORESET) configuration index. The CORESET configuration index is one of a plurality of CORESET configuration indexes, each CORESET configuration index being associated with a respective configuration of a CORESET. Each configuration includes a CORESET frequency size, a CORESET time duration, and a frequency offset of the CORESET with respect to the SSB selected from a set of predefined frequency offsets. The initial active downlink bandwidth part is defined as having the same frequency location and bandwidth as the CORESET. The base station transmits, as part of a physical downlink control channel (PDCCH) within the CORESET, information indicating scheduling of remaining minimum system information (RMSI) in a physical downlink shared channel (PDSCH).

Abstract: A method includes: determining, by an access network device, at least one piece of downlink control information, where the downlink control information includes at least one slot format indication; and sending, by the access network device, the downlink control information to a group of user equipment on a group common downlink control channel, where the group of user equipment operates in M bandwidth parts, the at least one slot format indication is used to indicate a slot format corresponding to N numerologies of the M bandwidth parts, and both N and M are positive integers greater than 1.

Abstract: A method for obtaining a quantity of resource elements in a communication process, comprising: determines a downlink control information format of downlink control information, obtains, based on the downlink control information format, a quantity of resource elements occupied by a demodulation reference signal (DMRS); and determines a size of transport block (TBS) based on the quantity of resource elements occupied by the DMRS.

Abstract: A frequency domain resource processing method is provided. The method is performed by a radio access network (RAN) node and includes: configuring a plurality of frequency domain resources for a terminal; and sending first information to the terminal, where the first information is carried on a physical downlink control channel (PDCCH) and includes a plurality of information bits, the plurality of information bits correspond to the plurality of frequency domain resources respectively, and the information bits are used to instruct to activate or deactivate the frequency domain resources corresponding to the information bits. Compared with a manner of activating a carrier by using a MAC layer information element, this method saves time for parsing the MAC information element. In addition, the plurality of frequency domain resources can be processed by sending only a piece of information.

Abstract: An embodiment provides an information monitoring method, a terminal, and a network device. The method includes: allocating, by a network device, a first frequency domain resource to a terminal, where the first frequency domain resource is used as a bandwidth part of the terminal; obtaining, by the network device, a bandwidth capability of the terminal, and determining, based on the bandwidth capability and the first frequency domain resource, a second frequency domain resource allocated to the terminal, where the second frequency domain resource is used by the terminal to monitor common information; and sending, by the network device, indication information, where the indication information is used to indicate the second frequency domain resource. According to embodiments, common information and information about a terminal can be simultaneously monitored, thereby improving information monitoring efficiency.