Abstract:
A user equipment having varied cell barring times is disclosed. The system includes circuitry and a control unit. The circuitry is configured to attempt cell selection of a cell and obtain barring information associated with the cell upon the cell being barred. The control unit is configured to initial selection of the cell and to determine a varied barring time at least partially based on the barring information and system characteristics upon the cell being barred.
Abstract:
A method of determining the position of a user in 3D space is disclosed. In one example, the method comprises utilizing range measurements from one or more GPS satellite vehicles, angular information of a camera located at the user position, and a camera image associated with one or more known markers. The method further comprises determining the angular information of the camera by determining a direction cosine matrix between a camera frame of reference and an earth frame of reference, and designating unit vectors that individually extend from a position within the camera image associated with one of the known markers through the camera focal point to the respective known marker The method also includes integrating into an ordinary least squares matrix, the GPS range measurements, the angular information of the camera, and the unit vectors, and calculating the user position by solving the ordinary least squares matrix.
Abstract:
Systems (500, 530, 900) and methods (800) that control the switching transition times or profile of a ramped voltage write signal (535) used for programming or erasing at least a wordline (309) of an array (300, 920) of multi-bit and/or multi-level flash memory cells (200) are provided. In one embodiment, this goal is accomplished by applying a ramped or otherwise controlled profile write voltage (535) to the flash memory cells (304) in order to avoid disturb issues to the unselected (non-targeted) neighboring memory cells (305), which preserves the existing state of the neighboring cells (305) while keeping the design as compact and manageable as possible yet maintains a high write speed. The systems and method are applicable to, and reliable for various memory technologies, since the size of the steps or other such functional transitions of the ramped voltage profile (535) can be adjusted or trimmed (590) to any level of resolution required.
Abstract:
One embodiment of the invention relates to a method (500) for accessing a memory cell (400). In this method, at least one bit of the memory cell is erased in block (506). After erasing the at least one bit, a soft program operation is performed in block (508) to bias the memory cell thereby improving the reliability of data stored in the memory cell. Other methods and systems are also disclosed.
Abstract:
A transmit receive switch (TRSW) system is disclosed. The system has a transmission line, a transformer based matching network, a shunt switch, an amplifier and circuitry. The transmission line is connected to an antenna port. The transformer based matching network is connected to the transmission line and has a first coil and a second coil, wherein the second coil is connected to the transmission line. The amplifier can be configured as a shunt switch when inactive. The shunt switch, including the amplifier configured as the shunt switch, can be connected to the first coil of the transformer based matching network. The circuitry is configured to cause the shunt switch to be ON during an inactive mode and create a short across the first coil. Combined, the length of transmission line needed to complete the impedance transformation is reduced, thereby lowering the overall insertion loss of the transmit/receive switch.
Abstract:
An antenna structure associated with a wireless communication device comprised of a plurality of structures configured to enable structural, functional or cosmetic functions associated with the device, is proposed in this disclosure. The antenna structure comprises a first plate comprised of a first set of structures of the plurality of structures of the device and a second, different, plate comprised of a second set of structures of the plurality of structures of the device. The antenna structure further comprises an excitation component coupled between the first plate and the second plate. In some embodiments, the first plate, the second plate and at least a part of the excitation component are configured to form a tank circuit, thereby enabling the antenna structure to radiate at a predefined radiation frequency comprising a resonant frequency associated with the tank circuit.
Abstract:
A multi-feed predistorter circuit associated with a power amplifier (PA) system is disclosed. The multi-feed predistorter circuit comprises one or more processors configured to receive an input signal associated with the PA system. The one or more processors is further configured to receive one or more PA measurement signals comprising one or more measured parameter values, respectively associated with a PA circuit in the PA system and generate a predistorted input signal to compensate for non-linearities associated with the PA circuit, based on the input signal and the one or more PA measurement signals. In some embodiments, the one or more measured parameter values comprises measured parameter values that are different from measured parameter values associated with a PA output signal and a PA input signal of the PA circuit.
Abstract:
Methods and architectures to reduce latency in next generation wireless networks such as LTE and/or new radio (NR), includes adjusting hybrid automatic repeat request (HARQ) techniques to selectively skip acknowledgements (ACKs) in various embodiments, and to configure one or more code block groups (CBG) designating code blocks for retransmission according to a code block group index bitmap present in received downlink control information (DCI).
Abstract:
An apparatus for interpolation of polar signals in RF transmitters is disclosed. The apparatus comprises an estimation circuit configured to receive an input in-phase (I) quadrature (Q) signal comprising a plurality of input IQ samples having a first sampling rate associated therewith, and determine a selection metric value indicative of a position of an IQ trajectory associated with one or more input IQ samples of the input IQ signal. The apparatus further comprises a selection circuit configured to receive the input IQ signal and the selection metric value; and adaptively provide the input IQ signal to a first interpolation circuit that implements a first interpolation method or to a second interpolation circuit that implements a second, different interpolation method, for generating interpolated polar samples at a second, different sampling rate, from the input IQ signal, based on the selection metric value.
Abstract:
A service provider (SP) network device or system can operate to enable a WiFi protected access 2 (WPA2) pass-through with a user equipment (UE) and further define various partitions between a physical access point (pAP) and a virtual AP (vAP) according to one or more VNFs based on one or more communication link parameters (e.g., latency). The WPA2 pass-through can be an interface connection that passes through a computer premise equipment (CPE) or wireless residential gateway (GW) without the CPE or GW modifying or affecting the data traffic such as by authentication or security protocol. The SP network device can receive traffic data from a UE through or via the WPA 2 pass-through from a UE of a community Wi-Fi network at a home, residence, or entity network.