Abstract: A method for wireless communication includes allocating a transmission bandwidth for transmission to a user equipment (UE). The method further includes determining if the allocated transmission bandwidth is less than or equal to a maximum estimated BWDPD. The maximum estimated BWDPD is the maximum estimated signal bandwidth that a transmitter is configured to digitally pre-distort. The method also includes digitally pre-distorting transmit signals and transmitting the digitally pre-distorted transmit signals to the UE if the allocated transmission bandwidth is less than or equal to the maximum estimated BWDPD. The method also includes transmitting to the UE without digitally pre-distorting the signals if the allocated transmission bandwidth is not less than or equal to the maximum estimated BWDPD. The method also includes applying digital crest factor reduction to the transmit signals if the allocated transmission bandwidth is less than or equal to the maximum estimated BWCFR.

Abstract: A method for wireless communication includes generating first and second digital baseband signal streams. The method further includes digitally up-converting the first digital baseband signal streams to a first digital intermediate frequency (IF) signal of frequency f1 and digitally up-converting the second digital baseband signal streams to a second digital intermediate frequency (IF) signal of frequency f2, wherein f1 is not equal to f2. The method also includes converting the first digital IF signal of frequency f1 to a first analog IF signal of frequency f1 and converting the second digital IF signal of frequency f1 to a second analog IF signal of frequency f2. The method also includes up-converting the first analog IF signal to a millimeter wave band signal. The method also includes transmitting the millimeter wave band signal and the second analog IF signal.

Abstract: Systems and methods enable wireless devices to measure interference and allow coexistence by preventing transmission on bands that are currently in use by other devices.

Abstract: A method for wireless communication includes transmitting at least first and second uplink signals by a UE to first and second virtualized radio units, respectively. The first and second uplink signals are processed by one or more virtual machines shared by both the first and second radio units. The UE switches connection from the first virtualized radio unit to the second virtualized radio unit without a transfer of context information from the first virtualized radio unit to the second virtualized radio unit. A first virtual machine implements at least one of a lower physical layer (PHY-Low), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), and a radio frequency (RF) transceiver. A second virtual machine implements at least one of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a higher physical (PHY-high) layer.

Abstract: A virtualized radio base station node includes a plurality of virtualized radio units. The virtualized radio units include a remote radio head including a lower physical layer (PHY-Low), an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), MIMO antenna arrays, and a radio frequency (RF) transceiver. The virtualized radio units also include a distributed unit including a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a higher physical (PHY-high) layer. The virtualized radio units also include a central unit including a Packet Data Convergence Protocol (PDCP) layer, a Service Data Adaptation Protocol (SDAP) layer, and a Radio Resource Control (RRC) layer. The remote radio head, the distributed unit and the central unit are located in at least one of the radio units. The remote radio head, the distributed unit and the central unit are implemented as one or more virtual machines shared by the radio units.

Abstract: A method of downlink and uplink frequency channel assignments in widely-spaced downlink and uplink frequency channels includes determining a downlink block length by dividing a millimeter wave spectrum into a plurality of downlink spectrum blocks and determining an uplink block length by dividing a sub-6 GHz spectrum into a plurality of uplink spectrum blocks. The method includes dividing the downlink block length into a plurality of downlink channels and dividing the uplink block length into a plurality of uplink channels. The method includes determining a starting local oscillator frequency from center frequencies of the first uplink and downlink channels and uplink and downlink channel bandwidths. The method includes determining a plurality of uplink and downlink communications channel pairs based on a frequency mapping relationship based on the starting local oscillator frequency. The method includes assigning a first uplink and downlink communications channel pair to a user.

Abstract: A method of making a metallic material includes mechanically alloying base metal with corrosion inhibitor to thereby form an alloy having the base metal and the corrosion inhibitor. A method of preventing corrosion includes providing the alloy to a process environment, allowing the process environment to corrode or crack the alloy to thereby expose the corrosion inhibitor of the alloy to the process environment, allowing a first ionic component of the corrosion inhibitor to be transformed to a second ionic component, and allowing the second ionic component to be repassivated with the alloy to thereby prevent further corrosion or cracking of the alloy.

Abstract: A method of wireless communication using time division duplex by a radio base station includes transmitting millimeter wave band downlink signals comprising a plurality of transmission time intervals (TTIs) and receiving millimeter wave band uplink signals comprising at least one TTI, wherein the number of TTIs in the millimeter wave band downlink signals is greater than the number of TTIs in the millimeter wave band uplink signals, and wherein control information associated with the millimeter wave band downlink signals and the millimeter wave band uplink signals is transmitted over the millimeter wave band. The method further includes transmitting sub-7 GHz band downlink signals comprising at least one TTI and receiving sub-7 GHz band uplink signals comprising a plurality of TTIs, wherein the number of TTIs in the sub-7 GHz band downlink signals is less than the number of TTIs in the sub-7 GHz band uplink signals.

Abstract: A method for determining a route from a mesh network to an external network includes identifying route segments from a user equipment (UE) to the external network. The route segments comprise at least a first route segment from the UE to a first mesh access point (AP), a second route segment from the first mesh AP to the external network through a wide area cellular wireless network (WACWN), and a third route segment from the first mesh AP to the external network through an alternative network. The method further includes determining respective bandwidth of at least the first, second and third route segments and selecting the route based on the bandwidth of the first, second and third route segments, wherein the route comprises at least two of the route segments. The method also includes routing data between the UE and the external network via the selected route.

Abstract: A method of wireless communication using time division duplex over widely spaced frequency bands by a radio base station includes transmitting millimeter wave band downlink signals comprising a plurality of first transmission time intervals (TTIs) and receiving millimeter wave band uplink signals comprising at least one second TTI. The number of first TTIs is greater than the number of second TTIs. The method includes transmitting sub-7 GHz band downlink signals comprising at least one third TTI and receiving sub-7 GHz band uplink signals comprising a plurality of fourth TTIs. The number of third TTIs is less than the number of fourth TTIs.

Abstract: A method of determining a preferred location and orientation of a wireless broadband router includes measuring by the wireless broadband router a first received downlink signal strength corresponding to a first location and orientation and transmitting by the wireless broadband router the first received downlink signal strength. The method includes receiving a first score responsive to the first downlink signal strength. The method includes measuring by the wireless broadband router a second received downlink signal strength corresponding to a second location and orientation and transmitting by the wireless broadband router the second received downlink signal strength. The method includes receiving a second score responsive to the second received downlink signal strength. The method includes receiving a preferred location and orientation information based on the scores.

Abstract: A wireless communication network includes a base station and a relay station. The relay station is configured to relay communications between the base station and at least one subscriber station. The base station is configured to communicate with the subscriber station via the relay station. The base station further is configured to transmit, in a subframe, a plurality of transport blocks for a plurality of Hybrid Automatic Repeat Request (HARQ) processes to the relay station. Each transport block corresponds to a different HARQ process.

Abstract: A method of wireless communication includes receiving a plurality of first downlink signals at a first radio base station, where the plurality of first downlink signals each has a different frequency. The method further includes down-converting the plurality of first downlink signals to a plurality of second downlink signals, where the plurality of second downlink signals have a same frequency. The method also includes transmitting the plurality of second downlink signals to associated user equipments (UEs).

Abstract: A wireless communications system includes an outside module configured to communicate with a radio base station. The outside module includes a wireless power receiver. The system includes an inside module configured to communicate with the outside module and to communicate with a communications device. The inside module includes a wireless power transmitter configured to wirelessly transmit power to the outside module.

Abstract: A communication system includes a radio base station configured to transmit and receive signals using digital beamforming. The system includes a plurality of wireless communication devices configured to communicate with the radio base station. The wireless communication device includes a digital beamforming module configured to generate digitally pre-coded spatial streams. A pre-coding matrix is applied to a plurality of spatial streams to generate the digitally pre-coded spatial streams. The communication device includes a plurality of analog beamforming modules configured to measure signal and channel quality metrics from received packets and to calculate gain and phase adjustment values. The analog beamforming modules adjust the gain and phase of the digitally pre-coded spatial streams for analog beamforming. The communication device includes a plurality of antenna arrays configured to transmit the spatial streams.

Abstract: A wireless device includes a broadband router comprising first and second transceivers, a base and a flexible neck having an elongated body and a first end connected to the broadband router and a second end connected to the base. The flexible neck bends and twists with ease. The flexible neck supports and retains the broadband router in a selected position in relation to the base. The flexible neck provides a pathway for electrically connecting the broadband router to the base to supply electrical power to the broadband router.

Abstract: A method of wireless communication using time division duplex over widely spaced frequency bands by a communication device includes receiving millimeter wave band downlink signals comprising a plurality of first transmission time intervals (TTIs) and transmitting millimeter wave band uplink signals comprising at least one second TTI, wherein the number of first TTIs is greater than the number of second TTIs. The method includes receiving sub-7 GHz band downlink signals comprising at least one third TTI and transmitting sub-7 GHz band uplink signals comprising a plurality of fourth TTI, wherein the number of third TTIs is less than the number of fourth TTIs.

Abstract: A method of wireless communication using time division duplex over widely spaced frequency bands by a radio base station includes transmitting millimeter wave band downlink signals comprising a plurality of first transmission time intervals (TTIs) and receiving millimeter wave band uplink signals comprising at least one second TTI. The number of first TTIs is greater than the number of second TTIs. The method includes transmitting sub-7 GHz band downlink signals comprising at least one third TTI and receiving sub-7 GHz band uplink signals comprising a plurality of fourth TTIs. The number of third TTIs is less than the number of fourth TTIs.

Abstract: Methods and apparatus for remapping and regrouping transmission resources in a wireless communication system. First, a set of new permutation algorithms based on Galois field operation is proposed. Then the proposed algorithms and the known Pruned Bit Reversal Ordering (PBRO) algorithm are applied to several of various resource mapping schemes, including slot or symbol level Orthogonal Cover (OC)/Cyclic Shift (CS) mapping, cell-specific slot-level and symbol-level CS hopping patterns, and subframe and slot level base sequence hopping patterns.