Abstract:
Embodiments of the present invention provide a method and an apparatus for transmitting channel state information. The method includes: sending a feedback indication message, a high-efficiency long training sequence, and a resource scheduling message, wherein the feedback indication message is used to indicate more than one target STAs that need to feed back channel state information, the high-efficiency long training sequence is used for determining the channel state information by the target STAs, and the first resource scheduling message is used to indicate a communication resource used by the target STAs when the target STAs feed back the channel state information; receiving the channel state information sent by the target STAs by using the communication resource.
Abstract:
An apparatus and a method for implementing a common public radio interface (CPRI) negotiation state machine. The apparatus includes an application-specific integrated circuit (ASIC) chip and a system on chip (SOC), where the ASIC chip is configured to send an interrupt request to the SOC in condition that n transition paths of m transition paths of the CPRI negotiation state machine need to be processed by the SOC; the SOC is configured to execute the software code according to the interrupt request to generate interrupt configuration information, and send the interrupt configuration information to the ASIC chip, where the interrupt configuration information is used to indicate whether the CPRI negotiation state machine transits to a state pointed by the n transition paths; and the ASIC chip is further configured to control transition of the CPRI negotiation state machine according to the interrupt configuration information.
Abstract:
A resource indication method includes generating, by an access point, resource mapping information, where the resource mapping information includes a plurality of mapping segments, each mapping segment is associated with a frame type, each mapping segment includes a plurality of resource indicators, and each resource indicator indicates a resource allocated to a station in a frame corresponding to a frame type associated with a mapping segment to which the resource indicator belongs, and sending, by the access point, the resource mapping information.
Abstract:
This application provides a communication method and apparatus, and relates to the field of communication technologies. An AP generates a trigger frame, where the trigger frame includes a first user information field, a part or all of a frequency domain resource indicated by a resource unit allocation subfield in a fourth user information field before the first user information field is located on a primary 160 MHz channel, and a part or all of a frequency domain resource indicated by a resource unit allocation subfield in a fourth user information field after the first user information field is located on a secondary 160 MHz channel. Then, the AP sends the trigger frame.
Abstract:
The disclosure relates to the wireless transmission field, and discloses a data transmission method and apparatus. An example method includes: A transmit end generates a data packet; and the transmit end sends the data packet to a receive end, where the data packet includes at least two pieces of video service data having different priorities, and the pieces of video service data having different priorities are carried on different communications resources for transmission.
Abstract:
Embodiments of this application disclose a communication method and a communication apparatus applied to a wireless communication system, to provide a signaling design solution applicable to a scenario of multi-AP coordinated transmission. An embodiment of this application provides a communication method, including: a first access point (AP) generates notification information, where the notification information indicates a station (STA) that is to send a channel sounding physical layer protocol data unit (PPDU), the notification information includes identification information of the STA and identification information of a second AP, the identification information of the STA indicates the STA, and the identification information of the second AP indicates the second AP. The first AP sends the notification information to the second AP and to the STA.
Abstract:
A resource indication method includes generating, by an access point, resource mapping information, where the resource mapping information includes a plurality of mapping segments, each mapping segment is associated with a frame type, each mapping segment includes a plurality of resource indicators, and each resource indicator indicates a resource allocated to a station in a frame corresponding to a frame type associated with a mapping segment to which the resource indicator belongs, and sending, by the access point, the resource mapping information.
Abstract:
Embodiments of this application provide an information sending method, an information receiving method, and a related device. In the information sending method, a network device sends first signaling that carries first indication information, and the network device further sends second signaling that carries second indication information. The first indication information indicates a subset identifier corresponding to a first precoding subset in a first codebook. The first codebook includes a plurality of precoding subsets. Each precoding subset includes a plurality of precoding matrices, and different precoding subsets correspond to different subset identifiers. The second indication information indicates a matrix identifier corresponding to a first precoding matrix in the first precoding subset. Precoding matrices in the first precoding subset correspond to different matrix identifiers, and the first precoding matrix is used to precode a physical uplink shared channel (PUSCH) carried on a first subband.
Abstract:
Embodiments of this application provide an information transmission method, an apparatus, and a system. The method may include: receiving first indication information, where the first indication information indicates a first time domain resource in a first time period, the first time period includes two or more slots, the first time domain resource is located in at least M slots in the first time period, and M is an integer greater than 1; receiving scheduling information, where the scheduling information indicates a second time domain resource for receiving first data, the second time domain resource is a subset or a universal set of the first time domain resource, the second time domain resource belongs to at least two slots, and the second time domain resource is sparse and inconsecutive time domain resources; and receiving the first data on the second time domain resource.
Abstract:
This application provides methods and apparatus for sending feedback information. By binding a BAR-BA feedback manner, that is, first a request and then a feedback, when it is determined that data retransmission is performed by using a hybrid automatic repeat request (HARQ) mechanism, duration of an acknowledgment operation performed by a data receive end on retransmitted data may be increased. Alternatively, the receive end estimates duration required for feeding back a receiving status of the retransmitted data, and feeds back the duration to a transmit end. The transmit end may therefore adaptively adjust duration of the retransmitted data based on a feedback capability of the receive end, to ensure that the feedback of the receive end on the receiving status of the retransmitted data is within a short inter-frame space (SIFS).