Abstract:
Embodiments of a base station and method for early handover using uplink channel characteristics in a wireless network are generally described herein. In some embodiments, a method for handover determination is performed by an enhanced node B (eNB) operating as a serving cell base station. In these embodiments, a handover decision is based on a signal level of uplink transmissions of user equipment (UE) measured at a target cell base station in addition to signal levels of downlink signals of the target cell base station and downlink signals of a serving cell base station measured at the UE.
Abstract:
Technology for dynamically reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration is disclosed. In an example, a user equipment (UE) can have computer circuitry configured to: Receive a UL-DL reconfiguration indicator from a node to dynamically reconfigure a flexible subframe (FlexSF) to a different UL-DL transmission direction from a semi-static UL-DL configuration; apply a DL channel timing based on a DL favored UL-DL configuration; and apply a UL channel timing based on a UL favored UL-DL configuration. The FlexSF can be capable of changing an UL-DL transmission direction. The DL favored UL-DL configuration can include more DL subframes than a semi-static UL-DL TDD configuration for the UE, and the UL favored UL-DL configuration includes more UL subframes than a semi-static UL-DL TDD configuration for the UE.
Abstract:
Embodiments of wireless communication devices and methods for device discovery is generally described herein. Some of these embodiments describe an apparatus having processing circuitry arranged to configure a single-tone discovery signal for transmission in a symbol in a transmission opportunity based on an assignment pattern. The assignment pattern may define frequency positions, for a set of transmission opportunities, at which the apparatus shall transmit discovery signals in the corresponding transmission opportunity. The apparatus may have physical layer circuitry arranged to transmit the single-tone discovery signal in the corresponding transmission opportunity. Other methods and apparatuses are also described.
Abstract:
Technology for performing downlink scheduling is disclosed. One or more subframes can be identified within a defined frame of a primary cell to perform cross-subframe scheduling for a secondary cell. The primary cell can be configured to communicate with a user equipment (UE) using a licensed band and the secondary cell can be configured to communicate with the UE using an unlicensed band. The cross-subframe scheduling can be performed for one or more downlink subframes of the secondary cell using the one or more subframes of the primary cell.
Abstract:
A user equipment (UE) includes a transmission mode component, a selection component, and a transmission component. The transmission mode component is configured to selectively allocate resources for device-to-device communication according to a plurality of transmission modes. The plurality of transmission modes include a first transmission mode in which the resources used by the UE are specifically allocated by one of a base station or relay node and a second transmission mode in which the UE selects the resources from a pool of available resources. The selection component is configured to select a selected transmission mode. The transmission component is configured to transmit signals in frequency resources selected according to the selected transmission mode.
Abstract:
A technology is disclosed for a user equipment (UE) that is operable to dynamically change an uplink/downlink (UL/DL) configuration in a communications network. A radio resource control (RRC) connection can be requested with an enhanced node B (eNode B). A UE Capability Information information element (IE) can be communicated to the eNode B to indicate an enhanced interference mitigation and traffic adaptation (eIMTA) capability of the UE to support an eIMTA time duplex domain (TDD) UL/DL reconfiguration functionality. An eIMTA configuration information can be received at the UE information within a RRCConnectionSetup message or a RRCConnectionReconfiguration message.
Abstract:
Embodiments described herein relate generally to a communication between a user equipment (UE) and an evolved Node B (eNB). A UE may signal, to an eNB, a capability of the UE to communicate in an unlicensed band. The UE may communicate one or more measurements to the eNB associated with the unlicensed band. Based on the one or more measurements, the eNB may activate and configure communication with the UE through the unlicensed band. Other embodiments may be described and/or claimed.
Abstract:
Apparatuses and methods for providing multimedia broadcast multicast service (MBMS) on carriers of a new carrier type (NCT) are described herein. A user equipment (UE) may transmit a message to indicate an interest in receiving MBMS transmissions on a target cell that operates on a first carrier of a first carrier type on which cell-specific reference signals (CRSs) are suppressed at one or more downlink subframes of a downlink frame. The UE may receive, in response to transmitting the message, identification information of a notification cell on which to receive MBMS control information change notification for the target cell. The UE may receive MBMS traffic from the target cell using the MBMS control information received from the notification cell. The UE may receive the MBMS control information on a second carrier of a second carrier type different from the first carrier type.
Abstract:
Systems and methods to support intra-application flow prioritization are disclosed herein. User equipment (UE) may be configured to communicatively couple to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (eNB). The eNB may be able to quickly change a time division duplexing (TDD) schedule based on the experienced traffic. The eNB may indicate which subframes the UE should monitor for the TDD schedule. The indication may be a bitmap, a code, etc. The bitmap and/or code may be shortened by restricting in which frames and/or subframes the TDD schedule can be transmitted. The UE may monitor the subframes and receive the TDD schedule. The UE may determine a delay before the TDD schedule should be applied. The delay may be determined based on the subframe in which the TDD schedule was received.
Abstract:
Systems and methods are provided for handling different timing advance (TA) adjustment delays corresponding to different transmission time intervals (TTIs) from different serving cells under carrier aggregation or dual connectivity. A user equipment (UE) selects and implements one TA adjustment delay even if two or more serving cells transmit with different TTIs. In one embodiment, the UE uses a predetermined TA adjustment delay for each of a plurality of TA commands received from serving cells with different TTI lengths. In another embodiment, the UE uses a TA adjustment delay that is a maximum value of the TA adjustment delays for the TTIs from the different serving cells.