摘要:
A mobile station includes a transmission chain capable of communicating via an uplink transmission to at least one base station in a Multiple Input Multiple Output wireless network. The mobile station includes a plurality of transmit antenna and a transmitter coupled to the plurality of transmit antenna. The transmitter includes a layer mapper that maps data and uplink control information to at least one layer. The mapping is performed prior to Discrete Fourier Transform precoding such that the data and uplink control information are multiplexed and interleaved. The transmitter is configured to simultaneously transmit the data and uplink control information on at least one of a plurality of transmission layers.
摘要:
A base station includes a transmit path circuitry that determines a PUCCH format 3 index and transmits an uplink grant to a subscriber station, the uplink grant including an indication of the PUCCH format 3 index. The base station also includes a receive path circuitry that receives a PUCCH format 3 signal in a subframe from the subscriber station. The receive path circuitry also receives a first demodulation reference signal for the PUCCH format signal in the first slot of the subframe, where the first demodulation reference signal is determined based at least partly upon a first demodulation reference signal cyclic shift number. The receive path circuitry also receives a second demodulation reference signal for the PUCCH format 3 signal in the second slot of the subframe, where the second demodulation reference signal is determined based at least partly upon a second demodulation reference signal cyclic shift number.
摘要:
A base station includes a transmit path circuitry to select one of a first UCI multiplexing method that allows a subscriber station to simultaneously transmit PUSCH and PUCCH and a second UCI multiplexing method that does not allow the subscriber station to simultaneously transmit PUSCH and PUCCH. The transmit path circuitry also transmits a higher layer signal indicating the one selected UCI multiplexing method, and transmits one or more uplink grants. Each of the uplink grants schedules a PUSCH in an UL CC for a subframe n, and each of the uplink grants carries a CQI request. The base station also includes a receive path circuitry to receive an aperiodic CSI report on the PUSCH in the uplink component carrier i when only one of the uplink grants scheduling a PUSCH in an uplink component carrier i carries a CQI request having a value from a set of values.
摘要:
Dynamic switching of uplink power control and synchronization in wireless networks involves switching a user equipment (UE) from a transmission point common (TP-common) mode to a transmission point specific (TP-specific) mode in a wireless network. The UE transmits at a high power level in a TP-common mode to compensate for a larger path loss between the UE and the TPs and at a low power level in a TP-specific mode to save battery power based on a smaller path loss between the UE and a specific, nearby TP.
摘要:
A user equipment (UE) is configured to communicate with a plurality of base stations in a wireless network. The UE includes a processor that receive a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE, the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH). The processor also receives UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH, wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value cinit. The downlink grant includes a one-bit scrambling identifier (SCID) information field configured to indicate a pair of values comprising a scrambling identifier nSCID and a virtual cell ID Nv-IDcell out of two candidate pairs, the pair of values to be used for determining the initialization value cinit for the UE-RS.
摘要:
A mobile station capable of communicating via an uplink transmission to at least one base station in a Multiple Input Multiple Output wireless network is configured to transmit multiple channel quality index (CQI) reports corresponding to multiple downlink component carriers. The mobile station includes at least one transmit antenna and a transmitter. The transmitter can communicate with a base station over the multiple downlink component carriers and at least one uplink component carrier. The transmitter can transmit the CQI report over the at least one uplink component carrier using at least one of a number of CQI reporting modes.
摘要:
A method from transmitting data via multiple antennas. The method contemplates modulating data to be transmitted into a plurality of modulated symbols, encoding each pair of modulated symbols from among said plurality of symbols in accordance with a transmission diversity scheme to result in a plurality of 2 by 2 matrices, with each 2 by 2 matrix corresponding to each pair of modulated symbols, orthogonally spreading the plurality of 2 by 2 matrices to generate an output matrix, and transmitting the symbols in the output matrix via a plurality of antennas by using either a space time transmission diversity scheme, a space frequency transmission diversity scheme, or a combination of a space time transmission diversity scheme and a space frequency transmission diversity scheme.
摘要:
A wireless communication network comprising a plurality of base stations capable of wireless communication with a plurality of subscriber stations within a coverage area of the network, wherein at least one of the plurality of base stations is capable of: determining a multiplexing scheme for multiplexing a frequency-selective channel quality information/precoding matrix index (FS CQI/PMI) feedback report with a wideband channel quality information/precoding matrix index (WB CQI/PMI) feedback report and a rank information (RI) report on a physical uplink control channel; transmitting the multiplexing scheme to a subscriber station; and receiving, from the subscriber station, an FS CQI/PMI feedback report multiplexed with a WB CQI/PMI feedback report and a RI report on the physical uplink control channel according to the multiplexing scheme.
摘要:
A wireless communication network includes a plurality of base stations capable of wireless communication with a plurality of subscriber stations within a coverage area of the network. At least one of the plurality of base stations is capable of selecting up to four orthogonal frequency-division multiplexing (OFDM) symbols in a subframe of a physical uplink shared channel. The up to four OFDM symbols are selected starting from the bottom a resource grid of the physical uplink shared channel in a bottom-up manner, and one or more rank information (RI) coded bits are repeated in each of the selected up to four OFDM symbols.
摘要:
A system and method for inter-cell interference avoidance. A device capable of performing channel estimation is configured to divide a codebook into two sets. A first set of said two sets corresponds to codebook information that will cause an interference in a received signal to be less than a threshold. The device further is configured to send feedback information corresponding to the first or second set, or both. A base station is configured to select a preceding vector or matrix based, in part, on a portion of the feedback information.