Abstract: A method for adaptive Multiple-Input and Multiple-Output (MIMO) transmission modes (TMs) in wireless communication networks. The method comprising receiving an attachment request from a User Equipment (UE). The method further comprising retrieving a Subscriber Profile ID (SPID) for the UE, and qualifying the UE for an enhanced MIMO TM based on the SPID. If the UE qualifies, then determining if the UE is capable of the enhanced MIMO TM. If the UE is capable of the enhanced MIMO TM, then assigning the UE to the enhanced MIMO TM, and receiving a Rank Indicator (RI) from the UE. If the RI is less than a RI threshold, assigning the UE to a lower MIMO TM.

Abstract: Disclosed is a method and system for selectively muting default downlink transmission of particular reference signals in order to reduce interference experienced by user equipment devices (UEs) receiving user data. In scheduling transmission of a downlink resource block (RB), a base station may select a particular transmission mode (TM) that does not require transmission of the particular reference signal. The base station may also determine that no condition exists that requires default transmission of the particular reference signal during a time interval allocated for transmission of the RB and on sub-carrier frequencies allocated to the RB. With particular TM selected and the absence of other requirements for default transmission of the particular reference signal, the base station can then mute transmission of the particular reference signal during transmission of the downlink RB. The base station may also coordinate scheduling with a neighboring base station to achieve further interference reduction.

Abstract: The technology described herein enhances the operation of a wireless repeater system to set an Automatic Gain Control (AGC) timer. In one implementation, the wireless repeater wirelessly receives a receive data signal having a receive energy level. The wireless repeater periodically processes the receive energy level per the AGC timer to calculate an AGC amount. The wireless repeater also applies the AGC amount to the received data signal to generate a transmit data signal, and wirelessly transfers the transmit data signal. The wireless RF repeater determines an energy fluctuation in the receive data signal, and when the energy fluctuation in the receive data signal exceeds a fluctuation threshold, the wireless repeater decreases the AGC timer.

Abstract: When a base station is serving a user equipment device (UE) that tunes away from the base station during recurring tune-away periods, the base station will determine that the base station did not receive a communication expected to be received at a particular time from the UE. Based on the determining, the base station will estimate a first tune-away period of the UE's recurring tune-away periods to be a time period that encompasses the particular time. And based on the estimated first tune-away period, the base station will estimate times of subsequent tune-away periods. The base station will then configure itself such that it avoids communicating with the UE during the estimated times of the subsequent tune-away periods.

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: When a base station is using multiple-input multiple-output (MIMO) communication defining multiple layers of communication to serve a user equipment device (UE) over an uplink channel, and the base station detects that its backhaul connection is threshold highly congested, the base station will responsively reduce the number of communication layers used to serve the UE over the uplink channel. In some examples, the base station could reduce the number of communication layers to a single layer, thereby transitioning from serving the UE using uplink MIMO communication to serving the UE using uplink single-input single-output (SISO) communication.

Abstract: A wireless base station locates User Equipment (UE) that is served by a wireless repeater chain that is served by the wireless base station. The wireless base station maintains a data structure that indicates geographic locations for wireless repeaters in the wireless repeater chain. The wireless base station wirelessly exchanges user data with the wireless repeater chain responsive to the UE exchanging the user data with one of the wireless repeaters in the wireless repeater chain. The wireless base station determines repeater hops in the wireless repeater chain between the wireless base station and the UE. The wireless base station determines the wireless repeater serving the UE based on the repeater hops. The wireless base station indicates a geographic location in the data structure for the wireless repeater serving the UE.

Abstract: A wireless base station locates User Equipment (UE) that is served by a wireless repeater chain that is served by the wireless base station. The wireless base station maintains a data structure that indicates geographic locations for wireless repeaters in the wireless repeater chain. The wireless base station wirelessly exchanges user data with the wireless repeater chain responsive to the UE exchanging the user data with one of the wireless repeaters in the wireless repeater chain. The wireless base station determines repeater hops in the wireless repeater chain between the wireless base station and the UE. The wireless base station determines the wireless repeater serving the UE based on the repeater hops. The wireless base station indicates a geographic location in the data structure for the wireless repeater serving the UE.

Abstract: A method and system to help manage air interface resources for communication between a user equipment device (UE) and a base station. As disclosed, a UE or base station detect a situation where a transport block that the base station would allocate to the UE would be too small to hold carry a packet that the UE would seek to transmit, and the UE and base station responsively switch to a mode of operation in which the UE will receive a multi-TTI transport block allocation rather than a single-TTI transport block allocation. Given a per-TTI limitation of available air interface resources, the allocation of a transport block spanning multiple TTIs may thus provide the UE with increased air interface capacity for transmission, thus optimally allowing the UE to transmit without a need for segmentation.

Abstract: A method of remediating wireless communication issues. The method comprises receiving a ticket by a ticket server computer that identifies a mobile communication device and identifies a service issue category, transmitting the mobile communication device identity and the service issue category to a resolution server computer, analyzing the service issue category by the resolution server computer, based on the analyzing of the service issue category, initiating a minimization of drive test (MDT), a subscriber trace, or a cell trace in a wireless communication network by the resolution server computer, where the wireless communication network provides wireless communication service to the mobile communication device and where the wireless communication network comprises a plurality of cell sites, analyzing the results of the MDT or trace by the resolution server computer; and initiating a corrective action in the mobile communication device or in the wireless communication network.

Abstract: A wireless communication network determines a fine distance between a wireless base station and User Equipment (UE). The wireless communication network comprises a wireless repeater chain that is coupled to the wireless base station and that serves the UE. The wireless base station determines Round Trip Delay (RTD) between the wireless base station and the UE. The wireless base station determines if the RTD indicates that the UE is beyond a wireless base station range. The wireless base station determines if the wireless base station serves a wireless repeater chain. If the UE is beyond the wireless base station range and the wireless base station serves a wireless repeater chain, then the wireless base station determines a number of repeater hops between itself and the UE. The wireless base station then determines the fine distance between itself and the UE based on the number of wireless repeater hops.

Abstract: An Orthogonal Frequency Division Multiplex (OFDM) base station transfers a wideband measurement request for a wideband OFDM spectrum to User Equipment (UE). The base station receives a wideband signal metric from the UE, and if the wideband signal metric is below a threshold, the base station transfers a sub-band null request to shield a sub-band of the wideband spectrum to an adjacent base station. The base station also transfers a sub-band measurement request to the UE. The base station receives a sub-band signal metric for the shielded sub-band from the UE, and if the sub-band signal metric is above a threshold, then the base station authorizes use of the shielded sub-band for the UE. The base station receives a communication request for the UE, and in response, transfers another sub-band null request to the adjacent base station and exchanges wireless data over the shielded sub-band with the UE.

Abstract: Network nodes including relays and access nodes are configured to transport data packets by identifying the type of data packet and correspondingly compressing a header portion of the data packet. Operations described herein may be implemented in a network that is capable of transporting voice over LTE (VoLTE) data packets using the GPRS tunneling protocol (GTP). A unique value is marked to an IP header of the voice data packet, and the GTP headers may be mapped to a unique bearer that is different from a standard voice bearer used in the network. The compression uses a robust header compression (RoHC), which includes compressing a RTP header portion along with a GTP header portion using existing or new compression profiles.

Abstract: A method of operating a communication system includes communicating data between an access node and a wireless device using carrier aggregation. This carrier aggregation includes communicating using at least a primary carrier and a secondary carrier. The communication system determines that conditions for the secondary carrier meet a beamforming requirement criteria. The communication system determines an angle of arrival of the primary carrier. Based on the angle of arrival determined for the primary carrier, beamforming is applied to the secondary carrier.

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: A wireless communication device receives wireless communications comprising omnidirectional reference signals, beam-formed reference signals, and beam-formed user data. The wireless communication device determines a difference between omnidirectional reference signal quality and beam-formed reference signal quality. The wireless communication device selects an omnidirectional network antenna configuration based on the difference between the omnidirectional reference signal quality and the beam-formed reference signal quality. The wireless communication device transmits wireless signaling indicating the selected omnidirectional network antenna configuration. Responsive to the wireless signaling, the wireless communication device receives additional wireless communications comprising omnidirectional reference signals and omnidirectional user data. In some examples, the network antenna configurations comprise Long Term Evolution (LTE) Transmission Modes (TMs).

Abstract: A wireless communication network comprising a donor base station (BS) and a repeater chain wherein a location controller stores a repeater chain BS identifier (ID) associated with a repeater chain location. The donor BS broadcasts a BS ID and serves a repeater chain. The repeater chain broadcasts the donor BS ID and the repeater chain BS ID. The communication server system receives a location request for a User Equipment (UE) and establishes data connectivity between the UE and the location controller over the donor BS and the repeater chain. The UE transfers the repeater chain BS ID to the location controller, and the PDE translates the repeater chain BS ID to the repeater chain location and transfers the repeater chain location.

Abstract: A wireless communication device receives wireless communications comprising omnidirectional reference signals, beam-formed reference signals, and beam-formed user data. The wireless communication device determines a difference between omnidirectional reference signal quality and beam-formed reference signal quality. The wireless communication device selects an omnidirectional network antenna configuration based on the difference between the omnidirectional reference signal quality and the beam-formed reference signal quality. The wireless communication device transmits wireless signaling indicating the selected omnidirectional network antenna configuration. Responsive to the wireless signaling, the wireless communication device receives additional wireless communications comprising omnidirectional reference signals and omnidirectional user data. In some examples, the network antenna configurations comprise Long Term Evolution (LTE) Transmission Modes (TMs).

Abstract: Systems and methods of testing a base station are provided. A base station can generate simulated user data and combine this data with data received from mobile stations over an air interface. The combined data can then be evaluated to determine the effect of the simulated user data to the data received from mobile stations over the air interface.

Abstract: Systems and methods for allocating uplink bandwidth are provided. A base station transmits an identification of a plurality of codes and an associated service flow type for each of the plurality of codes to a wireless station. The base station receives a bandwidth request message from the wireless station. The bandwidth request message is one of the plurality of codes. The base station transmits a bandwidth allocation message allocating bandwidth based on a service flow type associated with the received code.