Abstract: Systems and methods are described for load balancing between frequency bands based on bandwidth capacity. A load for a first frequency band and a load for a second frequency band may be determined, wherein a cell communicates with wireless devices over the first and second frequency bands. The determined loads may be adjusted based on a channel width for each frequency band and a duplexing scheme for each frequency band. And the adjusted loads may be balanced between the first frequency band and the second frequency band by instructing wireless devices in communication with the cell to change frequency bands used for communicating with the cell.

Abstract: Method and systems for assigning resources to user equipment devices (UEs) from a base station are disclosed. In accordance with the disclosure, the base station operates in a first mode in which the base station gives a UE a first scheduling priority level for resource assignment from the base station. The base station then makes a determination that a packet drop rate for the UE exceeds a threshold packet drop rate. Based on the determination, the base station switches from operating in the first mode to operating in a second mode in which the base station gives the UE a second scheduling priority level for resource assignment from the base station, where the second scheduling priority level is higher than the first scheduling priority level.

Abstract: Disclosed is an all-solid battery, including a cathode, an anode, and a solid electrolyte layer. The solid electrolyte layer may include a first solid electrolyte having an ionic conductivity ranging from greater than about 5×10?3 S/cm to about 1×10?1 S/cm and a second solid electrolyte having an ionic conductivity ranging from greater than about 5×10?4 S/cm to about 1×10?2 S/cm.

Abstract: Systems and methods are described for handoff of a wireless device. A total delay budget may be configured to a first access node. Scheduler delays associated with each of multiple scheduling buffers can be measured. An average scheduling delay for multiple wireless devices may be calculated based on the measured scheduler delays. The average scheduling delay may be compared to the total delay budget for the first access node and, when the average scheduling delay exceeds the total delay budget, a second access node may be selected for offload of at least one wireless device of the multiple wireless devices.

Abstract: A method for donor selection in a relay access node includes identifying a plurality of candidate donor access nodes and obtaining one or more characteristics associated with each of the plurality of candidate donor access nodes. The method further includes determining a primary donor access node based on a comparison of the one or more characteristics between each of the plurality of candidate donor access nodes, and receiving a reference signal transmitted by the primary donor access node at a transmission power higher than a transmission power of downlink information transmitted by the primary donor access node. One or more quality characteristics of the primary donor access node are evaluated, and based on the one or more quality characteristics meeting a predetermined threshold, a connection to the primary donor access node is requested. Devices and systems relate to donor selection.

Abstract: A vehicular battery module that is capable of securing the stability of a vehicle by inducing self-discharge of a battery cell when the battery is overcharged includes: a plurality of stacked battery cells, each of which includes a battery pouch and electrode terminals extending outwards from the battery pouch, and a variable-resistor disposed between the electrode terminals of the one-side battery pouch and the other-side battery pouch so as to electrically connect the two electrode terminals to each other.

Abstract: In an example method, a donor base station determines that an air interface, over which the donor base station serves a relay-UE and plurality of second UEs, is threshold highly congested and that a relay base station is serving a threshold high number of first UEs. The relay base station is coupled to a relay-UE that provides wireless connectivity for the relay base station and that is served by the donor base station. Responsive to at least the determining that the air interface is threshold highly congested and that the relay base station is serving a threshold high number of first UEs, the donor base station (i) selects one or more of the plurality of second UEs and (ii) hands over the selected one or more second UEs to another base station other than the donor base station.

Abstract: UEs capable of RF relay are enabled and disabled under certain conditions. The access node can control the on and off duration of the UE functioning as an RF relay. The access node may only enable RF relay when there is a need by another UE for the RF relay. The UEs selected to relay (or to not relay) may be selected based on their location (e.g., close to a UE that is experiencing poor signal strength). In an embodiment, the RF relay function of UEs are successively turned on by the access node. This causes these UEs to relay the access node's beacon signal. If, after a period of time, the wireless network performance is not improved, these UEs are commanded to disable their RF relays. If the wireless network performance is improved, the UE may be allowed to continue as an RF relay.

Abstract: Embodiments disclosed herein provide individual idle-mode cell reselection priority lists to wireless devices dynamically, based on real-time load conditions for frequency bands deployed within a wireless network. Load equalization operations include classifying frequency bands into congested, target, or non-congested bands, grouping similar bands, comparing loads across the various bands in to a threshold, and adjusting the priority of each frequency band accordingly. The adjusted priorities are transmitted to each wireless device as the wireless device enters idle mode.

Abstract: Access nodes in a network are configured to periodically measure cell loads and exchange cell load measurements with neighbors. At each access node, cell loads are compared with load thresholds, and with neighboring loads, to determine whether or not load balancing operations should be triggered. Load balancing operations include reducing or increasing an effective coverage area of one or both of the congested cell and the neighbor cell by adjusting a handover threshold parameter, such as a threshold signal level. Adjusting thresholds at a congested cell triggers more handovers from the congested cell to the non-congested cell. Similarly, adjusting thresholds at a non-congested cell prevents handovers from the non-congested cell to the congested cell.

Abstract: Device-to-device (D2D) transmissions by a wireless device may interfere with base station reception of other signals. To mitigate this interference, the wireless device estimates the path loss between itself and the base station. The path loss and the current D2D transmission power level are used to estimate the amount of interference the base station is experiencing as a result of the D2D transmissions from the wireless device. Based on the estimated interference experienced by the base station, the wireless device increases the robustness of the MCS being used and decreases the transmission power level by a corresponding amount. By decreasing the D2D transmission power level, less interference will be experienced by the base station. By increasing the robustness of the MCS, the impact of the reduced D2D transmission power level is mitigated.

Abstract: Systems and methods are described for determining candidates for handover of wireless devices in a wireless network. A first access node in communication with one or more wireless devices may receive signal information for second access nodes from the wireless devices. A communication link between the first access node and each second access node may be used to transmit second access node network characteristics to the first access node. The first access node may store information about second access nodes in a neighbor relation table. If a removal condition is satisfied, one or more second access nodes may be removed from the first access node neighbor relation table and may be blacklisted. Blacklisted second access nodes may be monitored for improvements in signal information or network characteristics. Improved second access nodes may be removed from the blacklist based on a comparison with threshold values for signal information and network characteristics.

Abstract: Systems and methods are described for sub-band selection for a wireless device during connection. An access node may receive a RACH preamble message from a wireless device. It may be determined that a received signal level associated with the message does not meet a signal level criteria. The wireless device may be instructed to transmit signal information to the access node. A sub-band that comprises a signal level that meets the signal level criteria may be selected. The wireless device may then be instructed to communicate with the access node using the selected sub-band when requesting a connection.

Abstract: Systems and methods are described for controlling a reference signal mode to facilitate beamforming. A load amount for reference signals from one or more wireless devices in communication with an access node is determined and compared with load level criteria. When the load amount meets or exceeds the load level criteria, the one or more wireless devices are directed to transmit reference signals using a subband mode of transmission. A subband quality is determined for a plurality of subbands available for the one or more wireless devices and a subband for reference signal transmission is selected from the plurality of subbands based on channel quality criteria. Wireless transmission, such as from an access node, to the one or more wireless devices is scheduled utilizing beamforming based on the reference signal.

Abstract: Systems and methods are described for generating a common subframe pattern in a wireless communication network. Frame numbers associated with a plurality of access nodes operating on the same frequency channel in a coverage area are synchronized. A unique almost blank subframe (ABS) ratio associated with each of the plurality of access nodes is determined. A common subframe pattern may be generated based on the determined unique ABS ratios. The common subframe pattern may be provided to each of the plurality of access nodes operating in the coverage area. Traffic may be scheduled using the generated common subframe pattern and the synchronized frame numbers.

Abstract: Systems and methods are described for determining a modulation and coding scheme for a small cell. A small cell may receive a first signal level for a first signal received at a wireless device and a second signal level for a second signal received at the wireless device, wherein the received first signal is from the small cell and the received second signal is from a macro cell. The small cell may also receive a channel quality indicator from the wireless device that indicates a channel quality for communications between the wireless device and the small cell. A signal level metric may be calculated based on the first signal level, the second signal level, and the received channel quality indicator. A modulation and coding scheme for a transmission from the small call may be determined, wherein the transmission is associated with an almost blank subframe transmission from the macro cell.

Abstract: A system for broadcasting a telecommunications signal is configured to detect the use of an improper filter, and/or also, the presence of an improper return signal from a filter. The system includes a broadcast cell having a signal generation component and a signal transmitting component, a filter through which the signal generated by the signal generation component is sent, and a directional coupler that diverts a portion of a return signal reflected from the filter back to the broadcast cell away from the broadcast cell to a detector, the detector configured to determine when the return signal is at least a minimum level, or within a range, that indicates use of an improper filter or the presence of an improper return signal, allowing modification of the system or notification of the conditions, in certain circumstances.

Abstract: An active noise control apparatus for a vehicle including: a plurality of microphones each configured to receive noise generated in the vehicle and generate an electrical signal corresponding to the noise; an external amplifier configured to supply power required for operations of the plurality of microphones; and a head unit configured to control the external amplifier to output a signal for removing the noise, based on the electrical signals generated from the plurality of microphones.

Abstract: Systems and methods are described for coordinating interference mitigation techniques and beamforming. Information about transmissions made by at least one access node neighboring a first access node is obtained. Further, profile data for a wireless device within a transmission range of the first access node is obtained. The systems and methods contemplate determining that transmissions from the first access node to the wireless device will utilize beamforming, based upon the profile data for the wireless device. The first access node is instructed to schedule wireless transmissions to the wireless device utilizing beamforming, based upon the determination to use beamforming.

Abstract: A wireless air interface may be defined for communication with a wireless communication device (WCD). The wireless air interface may include paired low-frequency channels and paired high-frequency channels, where the paired low-frequency channels include a low-frequency downlink channel and a low-frequency uplink channel, and where the paired high-frequency channels include a high-frequency downlink channel and a high-frequency uplink channel. It may be determined that, on at least one of the downlink or uplink channels, the WCD is experiencing a quality of wireless coverage below a threshold wireless coverage value. Possibly in response to the WCD experiencing the quality of wireless coverage below the threshold wireless coverage value, the downlink and uplink channels may be reconfigured so that the paired low-frequency channels include two low-frequency uplink channels and the paired high-frequency channels include two high-frequency downlink channels.