摘要:
This application considers the need for enhancements to the baseline CSI reporting mechanisms including maximum payload size, CQI/PMI reporting configurations and CSI transmission in the event of collision between CSI reports from different CCs.
摘要:
This invention is codebook sub-sampling of the reporting of RI, CQI, W1 and W2. If CSI mode 1 is selected RI and W1 are jointly encoded using codebook sub-sampling in report 1. If CSI mode 2 is selected W1 and W2 are jointly encoded using codebook sub-sampling in report 2.
摘要:
A transmitter is for use with multiple transmit antennas and includes a precoder unit configured to precode data for a transmission using a precoding matrix selected from a codebook, wherein the codebook corresponds to the following three transmission properties for an uplink transmission: 1) all precoding elements from the precoding matrix have a same magnitude, 2) each precoding element from the precoding matrix is taken from a set of finite values and 3) there is only one non-zero element in any row of the precoding matrix. The transmitter also includes a transmit unit configured to transmit the precoded data.
摘要:
This invention is a method and an apparatus to up link transmission of data from a user equipment to a base station for single user multiple input, multiple output. This invention includes receiving at least one codeword, permuting the received codewords, precoding the permuted codewords and transmitting the predecoded codewords on plural antennas. The codewords may be permuted by layer permutation or by codeword permutation.
摘要:
In one embodiment, the transmitter is for use with a cellular communication network and includes an offset determination unit configured to select a shift parameter for a channel quality indication, wherein the shift parameter corresponds to an adjustment in an energy per resource element ratio for reporting the channel quality indication. The transmitter also includes a sending unit configured to signal the shift parameter. In another embodiment, a receiver is for use with a cellular communication network and includes a reception unit that receives a transmission. The receiver also includes an offset interpretation unit configured to interpret a shift parameter for a channel quality indication from the transmission, wherein the shift parameter corresponds to an adjustment in an energy per resource element ratio for reporting the channel quality indication.
摘要:
A transmitter is for use with a cellular communication network and includes a downlink control information (DCI) configuration unit that designates a DCI format for a downlink transmission selected from a first DCI format intended for a single transport block contiguous resource block transmission and a second DCI format intended for a dual transport block transmission available for spatial multiplexing. The transmitter also includes a retransmission coordination unit configured to facilitate a retransmission for the downlink transmission of a transport block corresponding to the first DCI format using the second DCI format or one of the dual transport blocks corresponding to the second DCI format using the first DCI format, based on a retransmission rule.
摘要:
A method for setting a periodicity and an offset in rank indicator (RI) reporting in a user equipment in a wireless communication system receives a radio resource control (RRC) signal from a base station, decodes a RI periodicity and offset configuration index, sets the periodicity and offset in accordance with said decoded periodicity and offset configuration index and reports a RI according to the set periodicity and offset. The periodicity is an integer and reporting a RI reports with equal the product of the periodicity and a period of reporting of the channel quality indicator (CQI) and the preceding matrix indicator (PMI).
摘要:
This invention is a method of downlink, multiuser, multiple input, multiple output communication between a single base station and plural user equipment. Resource buffers are distributed into sub-bands. Each user equipment is assigned to a sub-band with at least one sub-band assigned plural user equipment. The base station transmits user equipment according to assigned sub-bands. A single user equipment may be assigned one sub-band while plural user equipment are assigned to another sub-band. In one embodiment the base station has N transmit antennas. N user equipment is assigned to a first sub-band and less than N user equipment is assigned to a second sub-band. In another embodiment a first second user equipment is assigned a first sub-band and the first and a third user equipment are assigned to a second sub-band.
摘要:
This invention is a technique for coordinate multi-point wireless transmission between plural base stations and user equipment. At least one base station transmits via a Physical Downlink Shared CHannel (PDSCH). The user equipment does not know the identity of the plural base stations. This could include joint transmission by simultaneous data transmission from multiple base stations. This could include dynamic point selection by data transmission from one base station at a time and changing the transmitting point (TP) from one subframe to another subframe. This could include coordinated scheduling/beamforming (CS/CB) where data is transmitted to the user equipment from one base station at a time and the base stations communicate to coordinate user scheduling and beamforming. The transmission point (TP) could vary over Resource Block (RB) pairs within a subframe while never transmitting from more than one base station. The transmission point (TP) could change in a semi-static fashion.
摘要:
This invention is a method and an apparatus to up link transmission of data from a user equipment to a base station for single user multiple input, multiple output. This invention includes receiving at least one codeword, permuting the received codewords, precoding the permuted codewords and transmitting the predecoded codewords on plural antennas. The codewords may be permuted by layer permutation or by codeword permutation.