Abstract: A WLAN system resource indication method and apparatus are provided. The method includes: generating, by an access point, a frame that carries resource indication information; and sending, to multiple stations, the frame that carries the resource indication information. The resource indication information includes multiple pieces of sub resource indication information. Correspondingly, each piece of the sub resource indication information uniquely corresponds to one of the multiple stations. Therefore, a station side does not need read the entire resource indication information, so as to reduce resource overheads and improve efficiency.

Abstract: Embodiments of this application relate to a data sending method, a data receiving method, a resource indication method, an apparatus, and a system, so that occupation and a waste of transmission resources can be reduced, and flexibility of resource scheduling can be improved. The method includes: A first terminal device receives a first message, where the first message indicates a first time window. The first terminal device sends first data to at least one second terminal device on at least one first transmission resource in the first time window. The at least one first transmission resource is a sidelink transmission resource.

Abstract: Embodiments of the present invention relate to the field of wireless communication, and in particular, to a wireless local area network data transmission method and apparatus, which are used for improving data transmission efficiency. The method of the embodiments of the present invention includes: carrying, by a control domain of a PLCP header domain in a PPDU constructed by an AP, identifier information of the AP, duration information, and an identifier of at least one STA, so that a STA may obtain the identifier information of the AP, the duration information, and the identifier of at least one STA by parsing only the control domain of the PLCP header domain.

Abstract: A communication method, apparatus, and system. The method includes: determining a first configuration, a modulation order, and a first code rate, where the first configuration includes a mapping type, a time domain resource, and a first quantity and/or a first transmission quantity; determining a second code rate, a second quantity, and a second transmission quantity based on the first code rate, the mapping type, and the first quantity and/or the first transmission quantity; determining a valid resource of the second transport block based on the time domain resource, the second quantity, and the second transmission quantity; and sending second data to a first device based on first data, the modulation order, the second code rate, and the valid resource of the second transport block.

Abstract: Embodiments of this application provide a control information transmission method. The method includes: User equipment UE sends report information to a base station, where the report information includes a detection result of one or more downlink reference signals of the UE or a status of a timer/counter corresponding to the one or more downlink reference signals; the UE receives feedback information from the base station, where the feedback information includes sending status information of the one or more downlink reference signals.

Abstract: An information transmission method and an apparatus, where the method includes: sending first indication information to a terminal, where the first indication information is used to indicate a format configuration of one or more time units in first time duration, where the format configuration is a time domain structure configuration of the one or more time units in a transmission direction, where the first time duration is not greater than second time duration, and where the second time duration is a maximum channel occupancy time of a network device.

Abstract: This application provides an information transmission method, an apparatus, and a system, to improve coverage and transmission reliability that are of uplink control information UCI, thereby improving communication efficiency. In the method, after determining UCI, a terminal device sends the uplink control information on N frequency domain resource units, where N is a positive integer greater than 1. Based on this solution, when a power spectral density is determined, a larger quantity of frequency domain resource units may indicate a higher transmit power, so that coverage of the UCI can be increased. In addition, when a quantity of bits of the UCI is small, rate matching may be performed on the N frequency domain resource units, to reduce a code rate, so that transmission reliability is improved.

Abstract: This application provides a communication method and apparatus. The method is applied to an unlicensed band, and includes: receiving first information sent by a network device, where the first information includes a Q value or a first parameter, and the first parameter indicates a status of a discovery burst transmission window DBTW; and determining the status of the DBTW based on the Q value or the first parameter. According to the solution provided in this application, a terminal device can determine the status of the DBTW, to quickly implement timing synchronization with the network device.

Abstract: A method includes generating, by an apparatus, a physical protocol data unit (PPDU) for a downlink multiple-user transmission, wherein the PPDU includes: a legacy preamble, a high efficiency Wi-Fi Signaling Field 1 (HEW-SIG1), a high efficiency Wi-Fi Signaling Field 2 (HEW-SIG2), adjacent to the HEW-SIG1, and a data portion, and wherein the HEW-SIG1 comprises a HEW-SIG2 modulation and coding scheme (HEW-SIG2 MCS) field, the HEW-SIG2 MCS field indicates a transmission modulation and coding scheme (MCS) used to transmit the HEW-SIG2, the HEW-SIG1 further comprises a frame structure indication field, and the frame structure indication field indicates whether a frame structure of a scheduling transmission is an uplink structure or a downlink structure, and the HEW-SIG2 comprises resource indication information; and sending, by the apparatus, the PPDU.

Abstract: This application provides a resource mapping method and apparatus. The method includes: mapping a first data channel to a symbol other than at least one first symbol in first resource to be mapped to, and/or mapping a second data channel to a symbol other than at least one first symbol in a second resource, M second symbols are included between the first resource and the second resource, the second symbol is a symbol to which the first data channel and the second data channel are not mapped, the first symbol is adjacent to the second symbol, M is an integer and M?0, and a sum of a quantity of first symbols and a quantity of second symbols is equal to a first threshold; and sending signals on the first data channel and the second data channel.

Abstract: In accordance with an embodiment, a method includes: determining, by a first terminal device, a first communication resource in an unlicensed spectrum, wherein the first communication resource is used to send a sidelink synchronization signal block (S-SSB), and the S-SSB is used for synchronization between a second terminal device and the first terminal device; and sending, by the first terminal device, the S-SSB to the second terminal device on the first communication resource.

Abstract: A signal transmission method and a communication apparatus, to resolve a problem that an analog beam configuration switching process affects receiving and sending of a normal signal. The method includes: a terminal device receives first information from a network device, where the first information is used to schedule a first time domain resource and a second time domain resource, the first time domain resource is used to carry a first-type signal, the second time domain resource is used to carry a second-type signal, and a first beam configuration of the first-type signal is different from a second beam configuration of the second-type signal. The terminal device sends or receives a signal based on the first information, where the second-type signal is carried on a time domain resource other than N time domain units before and/or after the first time domain resource.

Abstract: Embodiments of the present invention relate to the field of wireless communication, and in particular, to a wireless local area network data transmission method and apparatus, which are used for improving data transmission efficiency. The method of the embodiments of the present invention includes: carrying, by a control domain of a PLCP header domain in a PPDU constructed by an AP, identifier information of the AP, duration information, and an identifier of at least one STA, so that a STA may obtain the identifier information of the AP, the duration information, and the identifier of at least one STA by parsing only the control domain of the PLCP header domain.

Abstract: A WLAN system resource indication method and apparatus are provided. The method includes: generating, by an access point, a frame that carries resource indication information; and sending, to multiple stations, the frame that carries the resource indication information. The resource indication information includes multiple pieces of sub resource indication information. Correspondingly, each piece of the sub resource indication information uniquely corresponds to one of the multiple stations. Therefore, a station side does not need read the entire resource indication information, so as to reduce resource overheads and improve efficiency.

Abstract: This application provides a physical downlink control channel transmission method and a related apparatus. The transmission method includes: A network device sends a resource configuration, where the resource configuration indicates a time domain resource used by the network device for PDCCH sending. The network device sends a PDCCH of a first terminal device on a first time domain resource in the time domain resource used by the network device for PDCCH sending, and sends a PDCCH of a second terminal device on a second time domain resource in the time domain resource used by the network device for PDCCH sending. In this way, a terminal device needs to monitor a PDCCH only on a portion of the time domain resource used for PDCCH sending, and an increase in complexity of PDCCH monitoring of the terminal device can also be avoided.

Abstract: This application provides a method for determining a time of applying media access control MAC signaling and an apparatus, and relates to the field of communication technologies, to determine the time of applying the MAC signaling when DCI indicates that a terminal device delays feedback of a HARQ-ACK. In the method, the terminal device receives the MAC signaling. The terminal device receives first indication information, where the first indication information includes a first value for the terminal device to send the HARQ-ACK. The first value indicates whether the terminal device delays feedback of the HARQ-ACK. The terminal device determines the time of applying the MAC signaling. Based on the method, understandings of a network device and the terminal device on the time of applying the MAC signaling can be aligned, thereby improving communication performance.

Abstract: This application provides a wireless communication method and apparatus. The method includes: determining N first symbols in a first slot, where N is a positive real number greater than 1 and less than M, M is a quantity of symbols included in the first slot, M is a positive integer, a frequency domain resource corresponding to the first slot is an unlicensed spectrum, and the first symbols are unoccupied symbols in the first slot; and sending a first signal to a terminal device on the N first symbols. The first signal includes at least one of the following: a symbol copied from a second slot, a to-be-sent first transport block, or a cyclic prefix extension. The second slot is a next slot of the first slot. According to the disclosure, a channel resource in an unlicensed spectrum can be effectively occupied, thereby reducing waste of channel resources.

Abstract: A method includes receiving a first assignment for a first transmission with a first hybrid automatic repeat request (HARQ) process identifier (process ID) in a first network resource, receiving a second assignment for a second transmission with a second HARQ process ID in a second network resource, wherein the first network resource and the second network resource differ in a domain other than a time domain, detecting an indication indicating that the first HARQ process ID and the second HARQ process ID map to a same transmission block (TB), and communicating with an access node, a transmission associated with at least one of the first HARQ process ID or the second HARQ process ID.

Abstract: A method comprises constructing, by an access point (AP), a radio frame within a scheduling window, the radio frame including at least a preamble part compatible with an existing IEEE 802.11 preamble legacy preamble, a preamble part used in a next-generation IEEE 802.11 standard (HEW preamble), and the first downlink subframe (DL subframe); sending the Legacy preamble, the HEW preamble and the first DL subframe in the radio frame; receiving at least one uplink subframe (UL subframe) located after the first DL subframe; wherein each of the at least one UL subframes is triggered by one DL subframe located before the UL subframe.

Abstract: This application discloses an uplink control information sending method and receiving method, and a communication apparatus. The method includes: a terminal receives first indication information from a network device; and sends at least one type of uplink control information to the network device on an allocated resource, where the first indication information is used to indicate the resource allocated by the network device to the terminal, the allocated resource belongs to at least two basic frequency domain units and is used by the terminal to perform uplink transmission, and the at least one type of uplink control information is mapped to the allocated resource based on the basic frequency domain unit. In this way, even if the terminal can send the uplink control information on only a part of the allocated resource, it can be ensured that the uplink control information is not damaged.