摘要:
A communication device includes a processor subsystem that is in communication with a communication module, which is communicatively coupled to a millimeter wave (mmWave) antenna array to transmit and receive signals. The processor subsystem executes a computer program product of a near-field detection application in memory to perform a method. The mmWave antenna array transmits an mmWave signal that is swept across a range of frequencies and receives any back-scattered signals in the range of frequencies. The processor subsystem determines whether a near-field obstruction exists based on magnitude and phase characteristics of the received back-scattered signals. In response to determining that a near-field obstruction exists, the processor subsystem perform a selected one of: (i) altering a transmission beam transmitted by the communication device; and (ii) triggering an application to execute on the communication device, the application intended to interact with a user of the communication device.
摘要:
A method and apparatus provide antenna array channel feedback. The method can include receiving, at a wireless terminal, a set of channel state information reference signals. The method can include determining a precoding matrix based on the received set of channel state information reference signals. The precoding matrix can have a representation in terms of three components. The first component of the three components can be determined from a first set of vectors. The second component of the three components can be determined from a first set of parameters. The third component of the three components can be determined from a second set of parameters. The second set of parameters can be a set of unit-magnitude scalars. The method can include transmitting, by the wireless terminal, a representation of at least one of the first component, the second component, and the third component.
摘要:
A method and apparatus provide antenna array channel feedback. The method can include receiving, at a wireless terminal, a set of channel state information reference signals. The method can include determining, by the wireless terminal, based on the received set of channel state information reference signals, a precoding matrix that is a product of a first precoding matrix and a second precoding matrix. The first precoding matrix can have at least a representation in terms of a representation matrix. The representation matrix can be based on a matrix selected from a first codebook. The second precoding matrix can be based on a second codebook. The method can include transmitting, by the wireless terminal, a representation of at least one of the first precoding matrix and the second precoding matrix.
摘要:
A method in a wireless communication terminal includes receiving an aggregated carrier including a first component carrier and a second component carrier, determining a level of interference from a signal received on the first component carrier to a signal on the second component carrier based on a signal characteristic of the first component carrier and a signal characteristic of the second component carrier, and providing signal interference information to a serving base station if the determined interference level satisfies a condition.
摘要:
A communication device includes a processor subsystem that is in communication with a communication module, which is communicatively coupled to an antenna array to transmit and receive signals. The processor subsystem executes a near-field detection application to perform a method including transmitting, via the antenna array, a signal that is swept across a range of frequencies and receiving any back-scattered signals in the range of frequencies. The method includes determining whether a near-field obstruction exists based on characteristics of the received back-scattered signals. In response to determining that a near-field obstruction exists, the method includes triggering the processor subsystem to perform one or more responsive operations on the communication device. The operations include a selected one of: (i) altering a transmission beam transmitted by the communication device; and (ii) triggering an application to execute on the communication device, the application intended to interact with a user of the communication device.
摘要:
A method, user communication device, and a base station are disclosed. A transceiver 302 may receive a serving transmission from a serving base station. A processor 304 may make a status determination of an autonomous muting status of a neighbor base station based on the serving transmission.
摘要:
A method and apparatus provide antenna array channel feedback. The method can include receiving a first set of channel state information reference signals on resource elements, and a second set of channel state information reference signals on resource elements. The method can include determining a first precoding matrix based on the received first set of channel state information reference signals. The first precoding matrix can be chosen from a first codebook. The method can include determining a second precoding matrix based on the second set of channel state information reference signals. The second precoding matrix can be chosen from a second codebook that is different than the first codebook. The method can include transmitting a representation of at least one of the first precoding matrix and the second precoding matrix.
摘要:
Disclosed are methods for offloading of communication traffic from a cellular network to a Wireless Local Area Network (“WLAN”). According to various implementations, a wireless device determines a time period during which a wireless channel of the WLAN is busy. This first time period may include multiple channel-busy periods separated by periods during which the channel is not busy. The wireless device determines a second time period that represents interframe spacings associated with the first time period. The wireless device determines a modified channel utilization for the wireless channel based on the first time period and on the second time period. The wireless device reports the modified channel utilization to the cellular network.
摘要:
The present disclosure sets forth multiple embodiments of the invention. Among those embodiments is a method for determining a maximum power reduction of an uplink signal. The uplink signal is transmitted on a carrier that has a range of frequencies. Frequencies outside of the carrier frequency range include adjacent channel regions. Resource blocks of the carrier that have been allocated for use by to transmit the uplink signal are identified. A power spectral density is determined based on the identified resource blocks. A metric that is based on a third order convolution of the power spectral density function is determined. A maximum power reduction for the adjacent channel regions is also determined based on the metric.
摘要:
Disclosed are methods for offloading of communication traffic from a cellular network to a Wireless Local Area Network (“WLAN”). According to various implementations, a wireless device determines a time period during which a wireless channel of the WLAN is busy. This first time period may include multiple channel-busy periods separated by periods during which the channel is not busy. The wireless device determines a second time period that represents interframe spacings associated with the first time period. The wireless device determines a modified channel utilization for the wireless channel based on the first time period and on the second time period. The wireless device reports the modified channel utilization to the cellular network.