Abstract:
A turbo-coded data block is processed for transmission on a wireless communication link by scheduling a plurality of portions of the block for transmission during respectively corresponding transmit intervals that are temporally separated from one another. The block portions are transmitted during the respectively corresponding transmit intervals according to the scheduling.
Abstract:
Disclosed are a method for indicating channel measurement feedback and a sending station. The method comprises: a sending station sends a radio frame, wherein a signal field, which is in the physical layer header of the radio frame, carries indication information requesting channel measurement feedback. The disclosure effectively reduces the transmission load overhead for sending the radio frame when requesting channel measurement feedback, thereby reducing, the power consumption of a station.
Abstract:
The present invention discloses a multicast broadcast single frequency network subframe. The multicast broadcast single frequency network subframe is used as a physical resource of a user transmission data channel; in the multicast broadcast single frequency network subframe, except symbols of a physical downlink control channel, other symbols adopt the same cyclic prefix as subframe 0 in a local cell. The present invention also discloses a user data channel transmission method and device, and a user physical resource determining device. By using the subframe, the transmission method and device, and the determining device, the performance of the LTE-A system can be improved.
Abstract:
A method of CQI feedback comprises: in a CoMP system, a terminal feeding back a CQI corresponding to a comprehensive channel formed between the terminal and all transmission nodes in a CATS or each CQI corresponding to each channel between the terminal and each transmission node. A system of CQI feedback; in the system is also disclosed, a feedback unit at the terminal side is used in the CoMP system to calculate and feed back the CQI corresponding to the comprehensive channel formed between the terminal and all the transmission nodes in the CATS or each CQI corresponding to each channel between the terminal and each transmission node. With the method and system of the present invention, not only the CQI feedback in the CoMP system can be realized, but also the difference between the CQI feedback in the control channel and that in the traffic channel can be avoided.
Abstract:
It is disclosed a method for transmitting wireless frame, including: the wireless frame is transmitted by using any access category. The wireless frame is a beginning frame for performing channel information measurement. It is further disclosed an apparatus for transmitting wireless frame, including: a selection unit and a transmitting unit, where the selection unit is configured to select any access category for a beginning frame for performing the channel information measurement; and the transmitting unit is configured to transmit the beginning frame. It is further disclosed a communication network element provided with the apparatus for transmitting wireless frame mentioned above. It is ensured that the wireless frames subsequent to the frame exchange sequence for performing the channel information measurement may be smoothly transmitted, and the channel information measurement may be smoothly performed, and thereby transmitting communication data based on the acquired channel information. The support of each communication network elements to the MIMO and beam forming is further ensured, and an effective supplement to the existing protocols is provided.
Abstract:
The present invention provides an aperiodic channel quality information sending method and a mobile terminal. The method comprises: a mobile terminal and network side pre-appointing one or more transmission modes which support the forming of dual flow beam, and aperiodic channel quality information CQI feedback mode(s) corresponding to the transmission modes; the network side indicating the mobile terminal with one pre-appointed transmission mode to be adopted, wherein when the mobile terminal receiving the indication of adopting the one pre-appointed transmission mode, the mobile terminal adopts the aperiodic CQI feedback mode corresponding to the one pre-appointed transmission mode to feed back the CQI information to the network side. The method of the present invention facilitates the reduction of signaling overhead and feedback overhead, the increase of the feedback dimensionality of the channel information, and the improvement of the throughput of the system.
Abstract:
A space diversity method is disclosed having the steps of: setting space-frequency block coder (SFBC) based on Alamouti coder as the minimum unit of space-time coder; orthogonally processing the SFBC to acquire the transmission signals of part of antenna ports in eight antenna ports, and cyclically delaying the acquired transmission signals of antenna ports to obtain the transmission signals of the rest antenna ports; transmitting the acquired transmission signal in the corresponding time and sub-carrier by each antenna port. A space diversity device is also provided which has an orthogonal processing module, a signal cyclic delay module and a transmitting module. With the method and device, the eight-antenna data transmission in the long time evolution (LTE) advanced system is achieved, and better diversity gain is acquired without adding extra pilot overhead.
Abstract:
A method of generating a parity check matrix for iterative decoding of a linear block code includes: determining a set of parity check vectors for the linear block code; ordering according to Hamming weight non-zero parity check vectors of the set; selecting a criterion for generating the parity check matrix; and building the parity check matrix by incrementally selecting according to the criterion a parity check vector for each consecutive row of the parity check matrix, wherein the parity check vector is selected from the ordered non-zero parity check vectors remaining in the set.
Abstract:
A transmission of information between a secondary to a primary node in a wireless network occurs in a plurality of N logical time durations. Bundled feedback information for multiple DL transmissions is provided in one UL transmission. Each DL transmission is indicated by a DL grant comprising an M-bit downlink assignment indicator (DAI) field. The primary node increments the value of the M-bit DAI field in successively transmitted DL grants. The secondary node examines the value of the M-bit DAI field in received DL grants, to determine the bundled feedback information.
Abstract:
Wireless communication between a base station and at least one user equipment comprises the following. Each user equipment periodically measures channel quality of communication with the base station and transmits a channel quality indicator to the base station. The base station schedules communication with the at least one user equipment based upon the periodically transmitted channel quality indicators.