Abstract: Systems and methods are described for selecting relay nodes for Single-User Multiple-Input-Multiple Output (SU-MIMO). A channel orthogonality and Signal-to-Interference-Plus-Noise Ratio (SINR) of a plurality of wireless devices located in a geographic area of an access node is determined. A relay-capable status of the plurality of wireless devices is determined. Non-relay capable wireless devices located in the geographic area are excluded from SU-MIMO. From the plurality of wireless devices, relay-capable wireless devices are selected for SU-MIMO. The selected relay-capable wireless devices are prioritized for SU-MIMO based on a channel orthogonality and SINR meeting a set threshold.

Abstract: Systems and methods are described for performing carrier aggregation based on subframe configuration. It may be determined that conditions for a wireless device in communication with an access node meet a carrier aggregation criteria, wherein the access node and wireless device communicate using a first subframe configuration. Signal information may be received from the wireless device comprising received signal levels for a plurality of candidate secondary carriers. Subframe configurations used by the candidate secondary carriers to communicate with wireless devices may be retrieved. One or more of the plurality of candidate secondary carriers may be selected based on the received signal level information and the retrieved subframe configurations. And carrier aggregation may be activated such that the one or more selected secondary carriers are used to transmit downlink data to the wireless device.

Abstract: A relay node is enabled to transmit, to an end-user wireless device, any data packets remaining in a buffer associated with the end-user wireless device, prior to executing a handover of the end-user wireless device. Upon initiating a handover, the relay node adjusts a scheduling operation to use a lowest-possible modulating coding scheme (MCS) in order to transmit the remaining buffered data to the end-user wireless device. Moreover, the scheduling operation is adjusted to ignore any subsequent channel quality indicator (CQI) reports from the end-user wireless device, thereby ensuring that the end-user wireless device has a higher chance of receiving the data. When the buffer is empty, the handover is executed.

Abstract: A User Equipment (UE) registers with a Long Term Evolution (LTE) network. The UE registers with an Internet Multimedia Subsystem (IMS) over the LTE network. The UE registers with a Wireless Fidelity (WIF) network. The UE receives a status request from the LTE network responsive to a Session Initiation Protocol (SIP) invite for the UE received at the IMS. The UE transfers a status response to the LTE network that indicates the WIFI network responsive to the status request. The UE receives the SIP invite from the IMS over the WIFI network. The UE exchanges user data for the media session over the WIFI network.

Abstract: Upon a determination that a relay backhaul link of a relay node is using excessive resources of a donor access node, wireless devices attached to the relay node are offloaded to other access nodes such as neighbor access nodes or to a different frequency band deployed by the donor access node or its neighbors. A donor access node transmits a congestion indicator to the relay node. The relay node transmits updated measurement parameters to end-user wireless devices connected thereto. An end-user wireless device reports back to the relay node in the event it measures a signal strength that is stronger than the current signal strength. This measurement event triggers a handoff of the end-user wireless device, thereby helping to alleviate the resource utilization of the air-interface of the donor access node.

Abstract: Systems, methods, and processing nodes are related to improving service in a wireless network. The method includes determining a frame configuration and bandwidth for a plurality of communication bands available for communication with a wireless device. The method includes generating a reselection priority based on one or more of the frame configuration and bandwidth for each of the plurality of communication bands. The reselection priority of each of the plurality of communication bands is based on a suitability of one or more of the frame configuration and bandwidth to service uplink traffic. The method includes transmitting the reselection priority to the wireless device. The wireless device utilizes the reselection priority in communication band reselection based on uplink traffic generated by the wireless device.

Abstract: Systems, methods, and processing nodes for minimizing interference caused by high-powered wireless devices to other wireless devices in the network by determining that a first wireless device assigned to a first power class is located in a potential interference zone of a coverage area of an access node, and deactivating a high-powered transmission mode of the first wireless device. The high-powered transmission mode utilizes a first transmission power level that is associated with the first power class. The potential interference zone is defined based on standard-powered uplink transmissions that have a high noise or low SINR.

Abstract: A donor base station in a wireless communication network exchanges first user data with a wireless relay using a standard communication throughput. A relay control system in the wireless communication network exchanges data with the wireless relay over the donor base station and the neighboring base station. The relay control system detects Inter-Cell Interference Coordination (ICIC) between the wireless relay and the neighboring base station and in response, the relay control system identifies the donor base station serving the wireless relay and signaling the donor base station of the ICIC between the wireless relay and the neighboring base station. The donor base station receives the signaling and reduces the standard communication throughput of the wireless relay. The donor base station then exchanges second user data with the wireless relay using the reduced communication throughput.

Abstract: A wireless relay receives a user network Identifier (ID) and a relay network ID. The wireless relay attaches to the relay network responsive to the relay network ID. The wireless relay broadcasts the user network ID and User Equipment (UEs) attach to the wireless relay responsive to the user network ID. The wireless relay exchanges user data with the UEs over user network carrier aggregation links. The wireless relay exchanges the user data with the relay network over relay network carrier aggregation links. Responsive to carrier aggregation loading, the wireless relay receives an instruction to terminate the user network carrier aggregation links, and the wireless relay terminates the user network carrier aggregation links. The wireless relay now exchanges the user data with the UEs over non-carrier aggregation links. The wireless relay continues to exchange the user data with the relay network over the relay network carrier aggregation links.

Abstract: Described embodiments can help a user equipment (UE) participate in a handover procedure that is carried out by the UE's serving base station. In particular, when a neighbor sector is heavily loaded, the base station that serves the neighbor sector may vary the power in at least one reference signal in each subframe in the neighbor sector, thereby providing an indication of the heavy traffic load to UEs that receive the subframe. When a UE is being served by a different base station than the base station that serves the neighbor sector, and the UE detects such load information for a neighbor sector, the UE may report the load information to its serving base station, or may simply refrain from sending a signal strength report that could trigger a handover to the neighbor sector.

Abstract: Systems, methods, and software described herein provide enhancements for allocating Long Term Evolution (LTE) resources to a wireless relay node. In one implementation, a method of operating a LTE access node includes receiving device summary reports from a wireless relay node that indicate at least the quantity of wireless communication devices connected to the wireless relay node. Based on the received summaries, the LTE access node may determine scheduling weights for the wireless relay node, wherein the scheduling weights indicate a probability of scheduling resources in comparison to other wireless communication devices communicating using the same quality of service class identifier as the wireless relay node.

Abstract: A wireless communication network controls Carrier Aggregation (CA). A macrocell base station broadcasts a macro network Identifier (ID) and a relay network ID. A wireless relay broadcasts the macro network ID. The base station serves a first set of User Equipment (UEs) using CA responsive to the macro network ID. The wireless relay serves a second set of UEs using CA responsive to the macro network ID. The base station also serves the wireless relay using CA responsive to the relay network ID. The base station determines that a CA load threshold is exceeded and responsively terminates CA for the first set of UEs. The base station also transfers an instruction to terminate CA for the second set of UEs using the macro network ID. The wireless relay receives the instruction and responsively terminates CA for the second set of UEs.

Abstract: A data communication system pre-registers User Equipment (UE) to a Long Term Evolution (LTE) tracking area in an LTE network before the UE attaches to the LTE network. A voice communication network receives a release message for a user voice session and responsively transfers a pre-attachment message to an MME in the LTE network comprising a UE Identifier (ID), a serving base station ID, and an indication that the UE will attach to the LTE network. The MME processes the base station ID to select an LTE network Physical Cell Identity (PCI), processes the LTE network PCI to select an LTE tracking area, and pre-registers the UE ID to the selected LTE tracking area. An LTE base station receives an attachment request from the UE based on the LTE network PCI and responsively attaches the UE to the LTE network without performing a tracking area update.

Abstract: Examples disclosed herein provide systems, methods, and software to transition signaling formats for a wireless communication device. In one example, a method of operating an eNodeB to transition signaling formats or modes for a wireless communication device includes exchanging first wireless communication signals with the wireless communication device using multiple-input and multiple-output (MIMO) signaling. The method further includes identifying a signal transition event for the wireless communication device and, in response to identifying the signal transition event, determining whether the wireless communication device meets a transition criteria. The method also provides, if the wireless communication device meets the transition criteria, exchanging second wireless communication signals with the wireless communication device using beamforming signaling.

Abstract: A User Equipment (UE) registers with a Long Term Evolution (LTE) network. The UE registers with an Internet Multimedia Subsystem (IMS) over the LTE network. The UE registers with a Wireless Fidelity (WIF) network. The UE receives a status request from the LTE network responsive to a Session Initiation Protocol (SIP) invite for the UE received at the IMS. The UE transfers a status response to the LTE network that indicates the WIFI network responsive to the status request. The UE receives the SIP invite from the IMS over the WIFI network. The UE exchanges user data for the media session over the WIFI network.

Abstract: Systems and methods are described for performing a handover based on a target configuration. Signal information may be received, from a wireless device at a first access node, comprising a signal level for a received signal at the wireless device for a target frequency band, wherein the wireless device and the access node communicate over a source frequency band using a first subframe configuration. A second subframe configuration used by the target carrier to communicate with wireless devices may be determined. A traffic metric for the wireless device may be compared to the second subframe configuration. And, the wireless device may be instructed to perform a handover from the source frequency band to the target frequency band when the signal level meets a signal level criteria and the second subframe configuration satisfies the traffic metric.

Abstract: An Internet Multimedia Subsystem (IMS) identifies a Long Term Evolution (LTE) network serving the UE. The IMS receives a Session Initiation Protocol (SIP) Invite message for the media session to the UE and responsively transfers a status request for delivery to the LTE network serving the UE. The LTE network identifies a status of an LTE base station serving the UE and identifying an alternative communication network serving the UE. The LTE network determines that the media session should be redirected to the alternative communication network based on the status of the LTE base station and the identified alternative communication network serving the UE. The LTE network transfers a status response for delivery to the IMS indicating media session redirection to the alternative communication network. The IMS then transfers the SIP Invite message for the media session to the UE for delivery to the alternative communication network serving the UE.

Abstract: A wireless communication network controls Carrier Aggregation (CA), a donor base station wirelessly serves a wireless relay and the donor base station and the wireless relay wirelessly serve User Equipment (UE). The wireless relay wirelessly exchanges user data with a UE using CA based on an initial relay to UE (R2UE) CA threshold. The donor base station determines a donor base station utilization amount and processes the donor base station utilization amount to determine a modified R2UE CA threshold. The donor base station wirelessly transfers an instruction to the wireless relay indicating the modified R2UE CA threshold. The wireless relay wirelessly receives the modified R2UE CA threshold and exchanges additional user data with the UE using CA based on the modified R2UE CA threshold.

Abstract: Upon a determination that a relay backhaul link of a relay node is using excessive resources of a donor access node, wireless devices attached to the relay node are offloaded to other access nodes such as neighbor access nodes or to a different frequency band deployed by the donor access node or its neighbors. A donor access node transmits a congestion indicator to the relay node. The relay node transmits updated measurement parameters to end-user wireless devices connected thereto. An end-user wireless device reports back to the relay node in the event it measures a signal strength that is stronger than the current signal strength. This measurement event triggers a handoff of the end-user wireless device, thereby helping to alleviate the resource utilization of the air-interface of the donor access node.

Abstract: A Long Term Evolution (LTE) wireless access system transfers wireless data to User Equipment (UE) over a first frequency band based on an initial frequency band selection priority. The LTE wireless access system processes a user Identifier (ID) associated with the UE to select a new frequency band selection priority for the UE. The LTE wireless access system transfers a connection release message to the UE indicating the new frequency band selection priority for the UE. The LTE wireless access system receives a data message for the UE and identifies a second frequency band for the UE based on the new frequency band selection priority. The LTE wireless access system transfers the data message to the UE over the second frequency band.