Abstract: Provided are a resource scheduling method and device; the method comprises: scheduling resource according to the transmission demands; and configuring a frame structure with a non-fixed frame length matching the scheduled resource. The method according to the present invention prevents wastage of wireless resources caused by competition conflict or random back-off, and can better adapt to the demands of different kinds of data services with varied features in the future.

Abstract: The present disclosure provides a method and apparatus for transmitting the beamforming matrix. The method includes calculating the maximum value mv(k) of the real part and imaginary part of the elements in subcarrier's beamforming matrix; carrying out a M bits quantization to mv(k) and obtaining the quantization amplitude Mv(k), calculating the linear part Mvlin(k) of Mv(k); carrying out a respectively Nb bits quantization to the real part and imaginary part of every element in V(k) by Mvlin(k), and obtaining the quantized beamforming matrix Vq(k); Nb is positive integer; transmitting said quantization amplitude Mv(k) and said quantized beamforming matrix Vq(k).

Abstract: In the present invention, before data transmission, a “connection”, between a requesting end and a destination end, identified by a traffic flow identifier (FID) is established or modified through traffic flow management. Therefore, when the requesting end and the destination end perform data transmission on the traffic flow, the FID alone can sufficiently serve as the identifier, so as to save the need of carrying the destination end identifier in each exchanged data packet, thereby simplifying the operation.

Abstract: A method for open loop uplink access power control comprises: estimating the uplink transmission path loss according to received signal power of a station (STA) and the transmit power of a central access point (CAP); determining the transmission bandwidth allocated by the CAP for uplink transmission and deviation adjustment of the CAP; determining a modulation-coding mode and determining requirements of the carrier-to-noise ratio corresponding to the modulation-coding mode; and calculating a target value for adjusting the transmit power of the STA. Also disclosed is a device for open loop uplink access power control.

Abstract: Provided in the present invention are a method and device for use in frame acknowledgement. The method comprises: bearing an immediate acknowledgement instruction into a data frame, the immediate acknowledgement instruction is for use in instructing an immediate return frame acknowledgement response; and transmitting the data frame having the immediate acknowledgement instruction attached thereto.

Abstract: Disclosed is a wireless communication method, comprising: determining a type of a media access control MAC frame header according to a type of a media access control protocol data unit MPDU; assigning a value to a function field in the MAC frame header to generate the MAC frame header; generating an MPDU, the MPDU at least comprising the MAC frame header; and encapsulating the MPDU and sending the encapsulated MPDU. Further disclosed are a transmitting device and a receiving device. By using the method and devices of the present invention, a signaling format having complete functions and compact structure and being easy to implement and extend is implemented, which is applicable to a newly defined medium-to-short distance wireless communication system, and reduces the complexity in processing.

Abstract: Disclosed is a method for configuring a pilot frequency in a wireless communication system, comprising: on the basis of at least one item among a current wireless channel characteristic parameter, device capability information of a correspondent node, and system requirement information, configuring in real-time a pilot frequency for different transmissions during a transmission process; and transmitting the configuration result to the correspondent node. Also disclosed is a corresponding device for configuring the pilot frequency. The present invention allows for configuration in real-time of the pilot frequency. This facilitates improved transmission reliability and guaranteed communication quality, and reduces pilot frequency overhead, and at the same time, is applicable in additional number of channel environments and application scenarios.

Abstract: A method is for realizing Multi-Input Multi-Output which includes steps of: sending, by a Central Access Point, a downlink sounding channel, Multi-Input Multi-Output (MIMO) control information, and a feedback resource indicator to a Station (STA); detecting, by the STA, the downlink detection channel to obtain channel information, and feeding back on the feedback resource according to the indication of the MIMO control information; and selecting, by the Central Access Point, a suitable MIMO mode for downlink data transmission according to the feedback of the STA.

Abstract: Disclosed is a communication method comprising: determining the length, N, of a random access sequence on the basis of system configuration information, where N is less than or equal to the number of available subcarriers; determining a cyclic shift parameter collection and a cyclic prefix on the basis of a system coverage area as designed; acquiring and on the basis of a MAC address of a central access point (CAP), or of a physical layer identifier thereof, and of a predetermined generator polynomial, generating a PN sequence of length N, then constellation-mapping and subcarrier-mapping the PN sequence; cyclically shifting, on the basis of the cyclic shift parameter, the constellation-mapped and subcarrier-mapped sequence, then orthogonally transforming the cyclically shifted sequence; acquiring the sequence needed, adding the cyclic prefix thereto, acquiring a random access signal; and performing subsequent processing then transmitting to a receiving-end.

Abstract: A method for open loop uplink access power control comprises: estimating the uplink transmission path loss according to received signal power of a station (STA) and the transmit power of a central access point (CAP); determining the transmission bandwidth allocated by the CAP for uplink transmission and deviation adjustment of the CAP; determining a modulation-coding mode and determining requirements of the carrier-to-noise ratio corresponding to the modulation-coding mode; and calculating a target value for adjusting the transmit power of the STA. Also disclosed is a device for open loop uplink access power control.

Abstract: A method and apparatus for transmitting and receiving data are disclosed. The method for transmitting data, comprising encapsulating one or multiple media access control protocol data units (MPDU) as a group media access control protocol data unit (G-MPDU) based on a length of the group media access control protocol data unit G-MPDU; fragmenting a current MPDU according to a residual length to obtain a fragmented MPDU when the residual length is insufficient to encapsulate the current MPDU; encapsulating the fragmented MPDU to the G-MPDU; and transmitting the encapsulated G-MPDU. The method ensures a high data transmission rate and does not wasting excess time to execute the fragmentation processing. The method also ensures a high resource utilization rate, utilizing fully the remaining length of the data unit.

Abstract: The present disclosure provides a method and apparatus for transmitting the beamforming matrix. The method includes calculating the maximum value mv(k) of the real part and imaginary part of the elements in subcarrier's beamforming matrix; carrying out a M bits quantization to mv(k) and obtaining the quantization amplitude mv(k), calculating the linear part mvlin(k) of mv(k);carrying out a respectively Nb bits quantization to the real part and imaginary part of every element in V(k) by mvlin(k), and obtaining the quantized beamforming matrix Vq(k); Nb is positive integer; transmitting said quantization amplitude Mv(k) and said quantized beamforming matrix Vq(k).

Abstract: The present disclosure provides a method and apparatus for transmitting and receiving Channel State Information. The said transmitting method includes calculating the maximum value mH(k) of real part and imaginary part of each element in CSI matrix Heff(k) of the sub-carrier; carrying out M bit quantization to mH(k) to obtain the quantization amplitude MH(k); calculating the linear portion MHlin(k) of MH(k); using MHlin(k) for carrying out Nb bit quantization to real part and imaginary part of each element in Heff(k) respectively to obtain the quantized CSI matrix Heff(k); Nb being a positive integer; and transmitting said quantization amplitude MH(k) and said quantized CSI matrix Heffq(k).

Abstract: Disclosed is a method for implementing link self-adaptation, comprising: sending a downlink sounding channel and a channel quality information CQI feedback resource indication; and receiving CQI information, and selecting a suitable transmission mode for downlink data transmission according to the CQI information. Further disclosed are a network device and a terminal device. By using the method and devices provided in the present invention, the spectrum utilization rate and system performance can be improved.

Abstract: Disclosed in the present invention is a method for data transmission. The method comprises the following steps: receiving coded bit streams; mapping said coded bit streams to every spatial stream. A device for implementing stream mapping, a device for implementing rate matching and a transmitter are also disclosed in the present invention. With the method and device in the present invention, compared with the current stream mapping method, the mapping is more uniform with higher gain in high order modulation and multi-streams circumstance in a closed-loop model. And the system performance of a radio communication system could be further improved.

Abstract: The present invention provides a resource request method, a station, and a central access point. The method comprises: bearing a transmission resource request in a data frame; and sending the data frame carrying the transmission resource request. The method provides a solution for acquiring resources required by uplink transmission data.

Abstract: The present invention provides a method for accessing a wireless network, so as to implement acquisition of system synchronization during the process of accessing the wireless network in the situation that a physical frame structure can be configured dynamically. The method for acquiring system synchronization comprises: searching a physical frame on a current sub-channel; resolving a system information channel (SICH) and a control channel (CCH) in the found physical frame, wherein the SICH indicates a structure of the physical frame, and the CCH indicates allocation of system resources; and acquiring a system parameter from the physical frame by using the resolving result. A device for implementing the above method is further provided.

Abstract: In the present invention, before data transmission, a “connection”, between a requesting end and a destination end, identified by a traffic flow identifier (FID) is established or modified through traffic flow management. Therefore, when the requesting end and the destination end perform data transmission on the traffic flow, the FID alone can sufficiently serve as the identifier, so as to save the need of carrying the destination end identifier in each exchanged data packet, thereby simplifying the operation.

Abstract: Disclosed in present invention is a wireless communication system, comprising: a CAP, for determining a structure of a current physical frame according to scheduled transmission resources, and sending information for indicating the structure of the current physical frame in the current physical frame; and at least one STA communicating with the CAP, for determining the structure of the current physical frame according to the information for indicating the structure of the current physical frame, the length of each physical frame depending on the structure of the current physical frame and being not fixed. Also disclosed are two devices for wireless communication.

Abstract: Provided in the present invention are a method and device for use in frame acknowledgement. The method comprises: bearing an immediate acknowledgement instruction into a data frame, the immediate acknowledgement instruction is for use in instructing an immediate return frame acknowledgement response; and transmitting the data frame having the immediate acknowledgement instruction attached thereto.