Abstract: A water conditioning composition includes water; at least one gluconate compound; at least one carbonate compound; a non-ionic preservative; and a phosphate buffer. For example, the composition can include 87-95 wt. % water; 0.5 to 1.5 wt. % gluconate compound; 3 to 8 wt. % carbonate compound; 0.5 to 1.5 wt. % non-ionic preservative; and 0.5 to 2.5 wt. % phosphate buffer.

Abstract: A method and apparatus optimize antenna precoder selection with coupled antennas. A data signal can be received. The data signal can be precoded. The precoded data signal can be scaled using a precoder-dependent scaling factor. The scaled precoded data signal can be transmitted through a plurality of antennas.

Abstract: Apparatuses, methods, and systems are disclosed for determining a maximum power reduction for non-contiguous radio resource allocations. One apparatus includes a processor that identifies a received non-contiguous resource allocation and determines the maximum power reduction for the non-contiguous resource allocation based on whether a fraction of resource blocks punctured from a smallest containing contiguous allocation (“SCCA”) is less than a threshold value. The apparatus includes a transceiver that transmits uplink signals on the non-contiguous resource allocation using the determined maximum power reduction.

Abstract: A method and apparatus are provided. an indication of a first uplink resource allocation of resource blocks for a transmission on a first carrier, and an indication of a second uplink resource allocation of resource blocks for a transmission on a second carrier are received. An indication of a downlink allocation for receiving a downlink signal is further received. A higher order intermodulation product, which is co-located with a lower order intermodulation product for the first and second allocations resulting from any respective higher order and lower order transceiver nonlinearities is identified. A determination is then made as to whether the co-located higher order intermodulation products have a region of overlap with the downlink allocation. When the co-located higher order intermodulation products have a region of overlap with the downlink allocation, adjustments in the operation are made to account for the overlap of the higher order intermodulation product and the downlink allocation.

Abstract: A scaled precoded data signal can be received. The scaled precoded data signal can be based on a precoder-dependent scaling factor. The scaled precoded data signal can be scaled by using a precoder dependent scaling factor that is dependent on a precoder used to precode the data signal. The scaled precoded data signal can be demodulated.

Abstract: A water conditioning composition includes water; at least one gluconate compound; at least one carbonate compound; a non-ionic preservative; and a phosphate buffer. For example, the composition can include 87-95 wt. % water; 0.5 to 1.5 wt. % gluconate compound; 3 to 8 wt. % carbonate compound; 0.5 to 1.5 wt. % non-ionic preservative; and 0.5 to 2.5 wt. % phosphate buffer.

Abstract: A method and apparatus determine parameters and conditions for line of sight MIMO communication. A transmitter can transmit reference symbols from a regularly spaced subset of a set of transmitting device antenna elements of the transmitter with elements spanning one or more spatial dimensions. The transmitter can signal transmit antenna element spacings in each dimension that can be used by the transmitter for data transmission.

Abstract: A water conditioning composition includes at least one gluconate compound; at least one carbonate compound; one or more compounds which form a phosphate buffer when dissolved in water; and a filler material, where the composition does not include a non-ionic preservative. For example, the composition can include 6 to 12 wt. % of the at least one gluconate compound; 35 to 50 wt. % of the at least one carbonate compound; 10 to 30 wt. % of the one or more compounds which form the phosphate buffer when dissolved in water; and 20 to 40 wt. % of the filler material.

Abstract: A method and apparatus transmit an output stream of symbols over an antenna port. Data can be encoded to generate encoded data at a transmitter at a base station. At least two streams of modulated symbols can be generated at the base station from the encoded data. Each of the at least two streams of modulated symbols can correspond to an antenna port of a plurality of antenna ports at the base station. A non-empty subset of the at least two streams of the modulated symbols can be selected at the base station. The selected subset of the at least two streams of symbols can be transmitted from the base station over an antenna port implemented by applying a weighting to a plurality of antennas.

Abstract: A method and apparatus for channel determination for time division duplex systems with coupled antennas. A signal can be received at a receiving device. The signal can be based on a first product of an inverse of a transmit coupling matrix of a transmitting device and a receive coupling matrix of the transmitting device. A second product of a transmit coupling matrix of the receiving device and an inverse of a receive coupling matrix of the receiving device can be calculated. A receive channel from the transmitting device to the receiving device using reference symbols transmitted by the transmitting device can be measured at the receiving device. A reverse channel can be determined based on the signal and based on a third product of the second product and the transpose of the measurement of the receive channel. A precoded signal based on the reverse channel can be transmitted.

Abstract: A method and apparatus determine parameters and conditions for line of sight MIMO communication. Reference signals can be received at a receiving device from a transmitting device. A channel matrix can be measured based on the reference signals. At least two of a first line of sight channel parameter, a second line of sight channel parameter, and a third line of sight channel parameter can be extracted based on the channel matrix. The first line of sight channel parameter can be based on transmitting device antenna element spacing. The second line of sight channel parameter can be based on a product of the transmitting device antenna element spacing and a receiving device antenna element spacing. The third line of sight channel parameter can be based on the receiving device antenna element spacing. The at least two line of sight channel parameters can be transmitted to the transmitting device.

Abstract: A method and apparatus optimize antenna precoder selection with coupled antennas. A power metric corresponding to each precoder of a plurality of precoders can be received at a receiving device. Reference signals can be received. A transmission channel corresponding to each precoder can be estimated based on the reference signals. The estimate of the transmission channel can be scaled based on the power metric for each precoder. A channel quality metric for each precoder can be generated based on the scaled estimate of the transmission channel. An index of a precoder with the largest channel quality metric can be transmitted.

Abstract: A water conditioning composition includes water; at least one gluconate compound; at least one carbonate compound; a non-ionic preservative; and a phosphate buffer. For example, the composition can include 87-95 wt. % water; 0.5 to 1.5 wt. % gluconate compound; 3 to 8 wt. % carbonate compound; 0.5 to 1.5 wt. % non-ionic preservative; and 0.5 to 2.5 wt. % phosphate buffer.

Abstract: A method and apparatus determine that an almost-contiguous resource allocation Additional Maximum Power Reduction (A-MPR) applies to an uplink transmission power. An indication of a resource allocation of resource blocks for a transmission can be received. The resource allocation can be ascertained to be a non-contiguous allocation of resource blocks. An almost-contiguous resource allocation Additional Maximum Power Reduction (A-MPR) can be determined to apply to an uplink transmission power for the transmission. An almost-contiguous resource allocation can be defined as a contiguous resource allocation of resource blocks from which resource blocks are punctured and the punctured resource blocks are contained in a contiguous region overlapping a boundary between the lower frequency carrier and the adjacent upper frequency carrier. The punctured resource blocks can be resource blocks that are not allocated for the transmission.

Abstract: A first applied Additional Maximum Power Reduction (A-MPR) can be determined as the maximum of a first A-MPR and a second A-MPR if a device is configured for carrier aggregation. A second applied A-MPR can be determined as the maximum of a third A-MPR and a fourth A-MPR if the device is configured for transmission only on the primary cell. A transmitter can be configured for carrier aggregation transmission if the first applied A-MPR is less than or equal to the second applied A-MPR. The transmitter can be configured for transmission only on the primary cell if the second applied A-MPR is less than the first applied A-MPR. The uplink control channel can be transmitted with a power reduction no greater than the applied A-MPR for the selected transmitter configuration.

Abstract: A method and apparatus for transmit a Physical Uplink Control Channel (PUCCH) with a lower Additional Maximum Power Reduction (A-MPR). A target power (PPUCCH_TARGET) can be set to power control a PUCCH transmission. A first maximum device output power (PCMAX_L1) can be computed for transmitting a first PUCCH RB in a first slot of a subframe. A second maximum device output power (PCMAX_L2) can be computed for transmitting a second PUCCH RB in a second slot of a subframe. A first difference in power can be determined by subtracting the target power (PPUCCH_TARGET) from the first maximum device output power (PCMAX_L1). A second difference in power can be determined by subtracting the target power (PPUCCH_TARGET) from the second maximum device output power (PCMAX_L2).

Abstract: A method and apparatus for transmit a Physical Uplink Control Channel (PUCCH) with a lower Additional Maximum Power Reduction (A-MPR). A first A-MPR to apply to a transmission power can be ascertained at a device for a first resource block of a PUCCH transmission. A second A-MPR to apply to a transmission power can be ascertained for a second resource block of a PUCCH transmission. A difference between the first A-MPR and the second A-MPR can be determined. A PUCCH resource block can be transmitted in a slot of a subframe only for the PUCCH resource block of the first and second resource blocks with a lower A-MPR of the first A-MPR and the second A-MPR when a magnitude of the difference between the first A-MPR and the second A-MPR is greater than an A-MPR difference threshold.

Abstract: A method and apparatus determine parameters and conditions for line of sight MIMO communication. A transmitter can transmit reference symbols from a regularly spaced subset of a set of transmitting device antenna elements of the transmitter with elements spanning one or more spatial dimensions. The transmitter can signal transmit antenna element spacings in each dimension that can be used by the transmitter for data transmission.

Abstract: A method and apparatus determine parameters and conditions for line of sight MIMO communication. Reference signals can be received at a receiving device from a transmitting device. A channel matrix can be measured based on the reference signals. At least two of a first line of sight channel parameter, a second line of sight channel parameter, and a third line of sight channel parameter can be extracted based on the channel matrix. The first line of sight channel parameter can be based on transmitting device antenna element spacing. The second line of sight channel parameter can be based on a product of the transmitting device antenna element spacing and a receiving device antenna element spacing. The third line of sight channel parameter can be based on the receiving device antenna element spacing. The at least two line of sight channel parameters can be transmitted to the transmitting device.

Abstract: A method and apparatus determine parameters and conditions for line of sight MIMO communication. Reference signals can be received. A channel matrix can be measured based on the reference signals. A least-squared error estimate of the measured channel matrix can be determined. A sum-squared error can be calculated based on the least-squared error estimate. The sum-squared error based on the least-squared error estimate can be compared to a threshold. The measured channel matrix can be ascertained to be classified as a line of sight multiple input multiple output channel based on comparing the sum-squared error based on the least-squared error estimate to the threshold.