Abstract: A multiport planar antenna system with digital reconfigurability to adjust a beam-steering function of the system is described herein. A substrate is provided and a grid of parasitic elements is printed on a surface of the substrate. One or more driven, radiating elements such as monopole or dipole antennas are printed on the substrate proximate the parasitic elements. Switching elements between adjacent parasitic elements are then configured to steer the radiation direction in a particular direction in the azimuth plane. The small form factor of the planar antenna system can be used in a multiple-input, multiple-output (MIMO) application used by fifth generation (5G) devices such as mobile phones, internet of things (IoT) devices, and vehicles.

Abstract: A three-broadside-mode patch antenna includes: a rotationally symmetric radiator; a patch, wherein the patch is separated from the rotationally symmetric radiator by a dielectric and configured to capacitively feed the rotationally symmetric radiator; and three antenna probes, connected to the patch, configured to provide three antenna ports corresponding to three respective broadside radiation polarizations.

Abstract: A multiport planar antenna system with digital reconfigurability to adjust a beam-steering function of the system is described herein. A substrate is provided and a grid of parasitic elements is printed on a surface of the substrate. One or more driven, radiating elements such as monopole or dipole antennas are printed on the substrate proximate the parasitic elements. Switching elements between adjacent parasitic elements are then configured to steer the radiation direction in a particular direction in the azimuth plane. The small form factor of the planar antenna system can be used in a multiple-input, multiple-output (MIMO) application used by fifth generation (SG) devices such as mobile phones, internet of things (IoT) devices, and vehicles.

Abstract: A three-broadside-mode patch antenna includes: a rotationally symmetric radiator; a patch, wherein the patch is separated from the rotationally symmetric radiator by a dielectric and configured to capacitively feed the rotationally symmetric radiator; and three antenna probes, connected to the patch, configured to provide three antenna ports corresponding to three respective broadside radiation polarizations.

Abstract: A three-broadside-mode patch antenna includes: a rotationally symmetric radiator; a patch, wherein the patch is separated from the rotationally symmetric radiator by a dielectric and configured to capacitively feed the rotationally symmetric radiator; and three antenna probes, connected to the patch, configured to provide three antenna ports corresponding to three respective broadside radiation polarizations.

Abstract: A three-broadside-mode patch antenna includes: a rotationally symmetric radiator; a patch, wherein the patch is separated from the rotationally symmetric radiator by a dielectric and configured to capacitively feed the rotationally symmetric radiator; and three antenna probes, connected to the patch, configured to provide three antenna ports corresponding to three respective broadside radiation polarizations.

Abstract: Signal interference associated with multi-user multiple-input multiple-output (MIMO) full-duplex wireless communication systems is reduced. In an example, first streams are received by a MIMO base station from uplink user devices based on a first availability of channel matrices and second streams are transmitted to downlink user devices based on a second availability of the channel matrices. A weighted sum of a first data rate for a first linear transceiver matrix and a second data rate of a second linear transceiver matrix is maximized based on the channel matrices, the first streams, and the second streams. The base station generates a first linear transceiver vector used in transmission of the first streams to the base station from the uplink user devices and a second linear transceiver vector used in transmission of the second streams from the base station to the downlink user devices.

Abstract: Functionality is shared among mobile devices in a peer to peer manner. A mobile device can include a plurality of functional components that can each perform respective functionality. Examples of the functionalities can include transceiver communications, processing, power, memory, input and output for the mobile device. Further, the mobile device can include a sharing component that enables sharing a particular third party functional component to replace or supplement operation of a corresponding functional component of the mobile device. The third party functional component, for instance, can be made available for sharing by at least one of a disparate mobile device or a stand alone functional component. Moreover, a host component can allow a disparate mobile device to use an available one or more of the plurality of functional components of the mobile device.

Abstract: Signal interference associated with multi-user multiple-input multiple-output (MIMO) full-duplex wireless communication systems is reduced. In an example, first streams are received by a MIMO base station from uplink user devices based on a first availability of channel matrices and second streams are transmitted to downlink user devices based on a second availability of the channel matrices. A weighted sum of a first data rate for a first linear transceiver matrix and a second data rate of a second linear transceiver matrix is maximized based on the channel matrices, the first streams, and the second streams. The base station generates a first linear transceiver vector used in transmission of the first streams to the base station from the uplink user devices and a second linear transceiver vector used in transmission of the second streams from the base station to the downlink user devices.

Abstract: Systems and methods that recharge power supply units of portable electronic devices by leveraging energy harvesting or scavenging techniques. A recharge component accumulates energy from a plurality of sources, and supplies an electric current to the portable electronic device for a charge thereof. The sources of energy are based on routine user actions such as muscle movements (e.g., walking, movement of eye lashes, body heat), and can further consider environmental factors such as exposure to sunlight, temperature, as well as availability of external power sources.

Abstract: Systems and methodologies for employing a multi-user Multiple Input Multiple Output (MIMO) relay protocol with self-interference cancellation in a wireless communication environment are provided herein. Data streams sent between user device(s) and base station(s) can traverse through a relay. Further, a decode and forward protocol can be employed by the relay rather than merely amplifying and forwarding the data streams. Moreover, each user device can listen to and decode data stream(s) sent by other user device(s) to the relay, and these decoded data stream(s) can be utilized for interference cancellation. Further, the user device(s) and the base station(s) can employ self-interference cancellation upon signals received from the relay. According to another example, an adaptive relay power allocation algorithm, which enhances power efficiency, can be leveraged by the relay for transmitting signals to the user device(s) and the base station(s).

Abstract: Systems and methodologies for sharing functionality among mobile devices in a peer to peer manner are described herein. A mobile device can include a plurality of functional components that can each perform respective functionality. Examples of the functionalities can include transceiver communications, processing, power, memory, input and output for the mobile device. Further, the mobile device can include a sharing component that enables sharing a particular third party functional component to replace or supplement operation of a corresponding functional component of the mobile device. The third party functional component, for instance, can be made available for sharing by at least one of a disparate mobile device or a stand alone functional component. Moreover, a host component can allow a disparate mobile device to use an available one or more of the plurality of functional components of the mobile device.

Abstract: Mobile devices, mobile device systems and methods applying to mobile devices are provided that employ intelligent agents in combination with a wide array of remote utilities and information sources to facilitate improving a mobile device user's experience. By collecting contextual information from numerous information sources related to the mobile device user's context, more accurate and optimized determinations and/or inferences are formed relating to which remote utilities to make available to the mobile device user. This facilitates less confusion for the user in selecting desired mobile device content, services, and/or applications. The devices, systems, and methodologies also provide for an improved user experience in an open remote utility provider model.

Abstract: Mobile devices, mobile device systems and methods applying to mobile devices are provided that employ intelligent agents in combination with a wide array of remote utilities and information sources to facilitate improving a mobile device user's experience. By collecting contextual information from numerous information sources related to the mobile device user's context, more accurate and optimized determinations and/or inferences are formed relating to which remote utilities to make available to the mobile device user. This facilitates less confusion for the user in selecting desired mobile device content, services, and/or applications. The devices, systems, and methodologies also provide for an improved user experience in an open remote utility provider model.

Abstract: A method for sensing channel availability in a wireless network includes receiving a measurement request message which includes a channel interval list. A first channel interval in the list includes information associated with a first starting channel number, a first number of channels, and first linkage information of the channel interval list. The method includes processing information associated with the message, generating a first list of contiguous channels, and performing at least first channel measurement to determine a first channel availability for each of the first list of contiguous channels. The method also includes determining whether the channel interval list further includes a second channel interval that needs to be processed based on at least first linkage information, and if needed, generating a second list of contiguous channels and performing at least second channel measurement to determine a second channel availability for each of the second list of contiguous channels.

Abstract: Mobile devices, mobile device systems and methods applying to mobile devices are provided that employ intelligent agents in combination with a wide array of remote utilities and information sources to facilitate improving a mobile device user's experience. By collecting contextual information from numerous information sources related to the mobile device user's context, more accurate and optimized determinations and/or inferences are formed relating to which remote utilities to make available to the mobile device user. This facilitates less confusion for the user in selecting desired mobile device content, services, and/or applications. The devices, systems, and methodologies also provide for an improved user experience in an open remote utility provider model.

Abstract: Compact 24-port and 36-port multiple-input-multiple-output (MIMO) antenna designs and methods of construction based on a cube-like structure are provided. The antennas can be implemented with slot antennas distributed on the edges and faces of cubes. According to various embodiments of the disclosed subject matter, both spatial and polarization diversity can be achieved and average mutual couplings among the ports better than ?20 dB can be achieved providing good channel capacity in MIMO applications. The disclosed details enable various refinements and modifications according to antenna and system design considerations.

Abstract: Generalized non-limiting embodiments include employing a dipole antenna and/or a half slot antenna. Each of the antennas constitutes three mutually perpendicular radiating elements to achieve good isolation and low antenna signal correlation between the three ports. In one generalized non-limiting embodiment the antennas are fabricated on FR-4 epoxy boards. Experimental results show that the antennas resonate a reasonable frequency and have a desired mutual coupling. In addition experimental results for the diversity performance and the MIMO channel capacity are also provided for these antennas and these results show that the herein described antennas offer good diversity gain and the channel capacity can be increased by as much as three times by using these antennas over conventional antennas.

Abstract: The present invention relates to an RFID Tag and Antenna for use with an RFID tag and a method of radio frequency identification (RFID). The RFID Tag comprises a RFID chip 5 for storing data, an antenna 6 and an electromagnetic band gap substrate 12. The RFID chip 5 and the antenna 6 are mounted above the electromagnetic band gap substrate 12. The electromagnetic band gap substrate has a reflection phase which is different from 180° at the operation frequency of the antenna. The electromagnetic band gap substrate enables the RFID to operate even if it is mounted on a conductive object, as the reflection phase is not 180° so it does not destructively interfere with the radiation from the antenna at the operating frequency. Preferably the reflection phase is between 340° and 115° or ?95° and 145°. The preferred embodiment uses a band gap substrate having two mushroom-like conductive layers 3, 7 with a dielectric in between.

Abstract: Systems and methodologies for employing a multi-user Multiple Input Multiple Output (MIMO) relay protocol with self-interference cancellation in a wireless communication environment are provided herein. Data streams sent between user device(s) and base station(s) can traverse through a relay. Further, a decode and forward protocol can be employed by the relay rather than merely amplifying and forwarding the data streams. Moreover, each user device can listen to and decode data stream(s) sent by other user device(s) to the relay, and these decoded data stream(s) can be utilized for interference cancellation. Further, the user device(s) and the base station(s) can employ self-interference cancellation upon signals received from the relay. According to another example, an adaptive relay power allocation algorithm, which enhances power efficiency, can be leveraged by the relay for transmitting signals to the user device(s) and the base station(s).