Patent application number | Description | Published |
20090268630 | SIGNALING OF UNUSED RESOURCES - A user device on a wireless network includes a receiver, a noise detector and a noise determiner. The receiver receives downlink data communications from a base station that indicates an allocation of time/frequency resource blocks at least to user devices that are communicating with the base station. The noise detector measures noise in a time/frequency resource block, comprising plural time/frequency bins, that is not allocated to one of the user devices. The noise determiner determines a level of interfering noise based on noise in the resource block that is not allocated to one of the user devices. | 10-29-2009 |
20100015967 | UPLINK POWER CONTROL IN AGGREGATED SPECTRUM SYSTEMS - A method for communication includes modulating data in a wireless communication terminal to produce an aggregated-spectrum signal, which includes at least first and second signals in respective first and second spectral bands. The modulated data is transmitted in the first and second signals at respective first and second power levels. The second power level is adjusted separately from the first power level. In some embodiments, one or more instructions to set the first power level are received at the wireless communication terminal, and the first power level is set separately from setting the second power level based on the instructions. | 01-21-2010 |
20100172424 | EFFICIENT MIMO TRANSMISSION SCHEMES - A method for communication includes, in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number. An actual number of the spatial layers, which does not exceed the upper limit, is allocated for transmission to a given receiver. One or more streams of modulated symbols are mapped onto the allocated actual number of the spatial layers. The actual number of the spatial layers are transmitted from the transmitter to the given receiver. | 07-08-2010 |
20100172430 | PRECODING CODEBOOKS FOR MIMO COMMUNICATION SYSTEMS - A method for communication includes configuring a communication system that includes a transmitter and a receiver with first precoding matrices for mapping up to N data streams onto N transmit antenna ports of the transmitter. Each of at least some of the first precoding matrices are derived from respective second and third precoding matrices configured for mapping onto respective numbers of transmit antenna ports that are less than N. The data streams are mapped onto the N transmit antenna ports using a precoding scheme based on one of the first precoding matrices. The mapped data streams are transmitted over the N transmit antenna ports from the transmitter to the receiver. | 07-08-2010 |
20100232553 | MULTI - USER MULTIPLE INPUT MULTIPLE OUTPUT (MU - MIMO) RECEIVER - Some of the embodiments of the present disclosure provide a method within a wireless communication network, the method comprising, receiving by a user equipment (UE), a signal and interference component, wherein the interference component was transmitted in an unknown direction; and decoding, by the UE, the signal based at least in part on the interference component. Other embodiments are also described and claimed. | 09-16-2010 |
20110129021 | Direct Generation of Discrete Fourier Transforms of Time-Shifted Zadoff-Chu Sequences - A method includes accepting input values u and v, respectively identifying a u | 06-02-2011 |
20110150052 | MIMO FEEDBACK SCHEMES FOR CROSS-POLARIZED ANTENNAS - A method includes receiving a Multiple-Input Multiple Output (MIMO) signal over multiple communication channels from an antenna array including a first set of antennas having a first polarization and a second set of the antennas having a second polarization that is orthogonal to the first polarization. First feedback information is calculated relating to first interrelations between the antennas within either the first set or the second set. Second feedback information is calculated relating at least to second interrelations between the first set and the second set of the antennas. The first feedback information is transmitted at a first time/frequency granularity, and the second feedback information is transmitted at a second time/frequency granularity that is finer than the first time/frequency granularity. | 06-23-2011 |
20120149427 | UPLINK POWER CONTROL IN AGGREGATED SPECTRUM SYSTEMS - A method for communication includes modulating data in a wireless communication terminal to produce an aggregated-spectrum signal, which includes at least first and second signals in respective first and second spectral bands. The modulated data is transmitted in the first and second signals at respective first and second power levels. The second power level is adjusted separately from the first power level. In some embodiments, one or more instructions to set the first power level are received at the wireless communication terminal, and the first power level is set separately from setting the second power level based on the instructions. | 06-14-2012 |
20130058300 | Uplink Power Control in Aggregated Spectrum Systems - A method for communication includes modulating data in a wireless communication terminal to produce an aggregated-spectrum signal, which includes at least first and second signals in respective first and second spectral bands. The modulated data is transmitted in the first and second signals at respective first and second power levels. The second power level is adjusted separately from the first power level. In some embodiments, one or more instructions to set the first power level are received at the wireless communication terminal, and the first power level is set separately from setting the second power level based on the instructions. | 03-07-2013 |
20130148755 | PRECODING CODEBOOKS FOR MIMO COMMUNICATION SYSTEMS - A method for communication includes configuring a communication system that includes a transmitter and a receiver with first precoding matrices for mapping up to N data streams onto N transmit antenna ports of the transmitter. Each of at least some of the first precoding matrices are derived from respective second and third precoding matrices. The second and third precoding matrices are configured for mapping data onto respective numbers of transmit antenna ports that are less than N. The data streams are mapped onto the N transmit antenna ports using a precoding scheme based on one of the first precoding matrices. The mapped data streams are transmitted over the N transmit antenna ports from the transmitter to the receiver. | 06-13-2013 |
20130156123 | EFFICIENT MIMO TRANSMISSION SCHEMES - A method for communication includes, in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number. An actual number of the spatial layers, which does not exceed the upper limit, is allocated for transmission to a given receiver. One or more streams of modulated symbols are mapped onto the allocated actual number of the spatial layers. The actual number of the spatial layers are transmitted from the transmitter to the given receiver. | 06-20-2013 |
20130242869 | DIRECT GENERATION OF DISCRETE FOURIER TRANSFORMS OF TIME-SHIFTED ZADOFF-CHU SEQUENCES - A method includes accepting input values u and v, respectively identifying a u | 09-19-2013 |
20140198869 | PRECODING CODEBOOKS FOR 4TX AND 8TX MIMO COMMUNICATION SYSTEMS - A method for communication includes configuring a communication system that includes a transmitter and a receiver with first precoding matrices for mapping up to N data streams onto N transmit antenna ports of the transmitter. Each of at least some of the first precoding matrices are derived from respective second and third precoding matrices. The second and third precoding matrices are configured for mapping data onto respective numbers of transmit antenna ports that are less than N. The data streams are mapped onto the N transmit antenna ports using a precoding scheme based on one of the first precoding matrices. The mapped data streams are transmitted over the N transmit antenna ports from the transmitter to the receiver. | 07-17-2014 |