Abstract:
In embodiments, apparatuses, methods, and storage media may be described for identifying subframes in a radio frame on which a UE may receive a Physical Downlink Control Channel (PDCCH) or enhanced PDCCH (ePDCCH) transmission. Specifically, the UE may receive multiple indications of uplink/downlink (UL/DL) subframe configurations and identify one or more subframes in which the UE may receive the PDCCH or ePDCCH transmission. The UE may then monitor one or more of the identified subframes and base discontinuous reception (DRX) timer functionality on one or more of the identified subframes.
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:
Methods, systems, and storage media for reducing interruptions in data transmission/reception during handover (HO) operations in wireless communications networks are described. In embodiments, a user equipment (UE) may receive downlink data from a source evolved nodeB (eNB) after receiving an HO command and before receiving a random access response from a target eNB, which may reduce an interruption time associated with a HO operation. Embodiments provide UE related procedures for supporting continuous downlink reception during HO, including key management, simultaneous reception, Packet Data Convergence Protocol (PDCP) packet handling, PDCP status reporting, Radio Link failure handling, HO failure handling, and Dual connectivity handling. Other embodiments may be described and/or claimed.
Abstract:
Methods, systems, and storage media for reducing interruptions in data transmission/reception during handover (HO) operations in wireless communications networks are described. In embodiments, a user equipment (UE) may receive an HO command from a source evolved nodeB (eNB). The UE may establish and activate a medium access control (MAC) entity for a connection with a target eNB based on the HO command. The UE may establish and activate a packet data convergence protocol (PDCP) entity and a radio link control (RLC) entity for the connection with the target eNB upon completion (or prior to completion) of an HO operation with the target eNB. The UE may continue to receive downlink transmissions from the source eNB until the HO operation is complete. Other embodiments may be described and/or claimed.
Abstract:
An apparatus for use in a remote UE of a ProSe network facilitates downlink reachability of the remote UE. The apparatus includes a processing circuit configured to detect a paging message from an eNodeB of the ProSe network, over an air interface between the eNodeB and the remote UE or through a relay UE of the ProSe network over a PC5 interface between the relay UE and the remote UE. The processing circuit is further configured to generate and transmit a connection request message to the relay UE, in response to receiving the paging message, to establish a direct connection between the remote UE and the relay UE. Further, the processing circuit is configured to detect downlink data from the eNodeB through the relay UE over the PC5 interface using EPS bearer of the remote UE or the relay UE, in response to providing the connection request message.
Abstract:
Briefly, in accordance with one or more embodiments, an apparatus of a user equipment (UE) comprises a radio-frequency (RF) transceiver to transmit a scheduling request message to an evolved Node B (eNB) indicating that the UE has data to be transmitted to the eNB, and to receive an uplink grant message from the eNB. One or more baseband processors determine if the data to be transmitted should use a normal TTI or a short TTI, and generate a message to include an indication whether the normal TTI or the short TTI will be used to transmit the data. The radio-frequency transceiver is to transmit the generated message to the eNB, and transmit the data to the eNB on a resource allocated by the uplink grant message using the normal TTI or the short TTI based on logical channel prioritization methods or according to the included indication if signaled.
Abstract:
A network device (e.g., an evolved Node B (eNB), user equipment (UE) or the like) can operate to reduce an interruption time during a fallback operation resulting from a communication link blockage condition (e.g., a human blockage or other natural/physical wireless blockage). The network device includes a network convergence protocol (NCP) layer that enables communication between other network devices of different radio access technologies (RATs) in a heterogeneous network.
Abstract:
The periodic broadcasting of system information by an eNB is costly in terms of both spectrum and energy. Embodiments described herein more efficiently transmit system information and are particularly applicable to 5G deployment scenarios. In one embodiment, an LTE cell broadcasts system information to be used by a UE in initially connecting to a 5G cell, termed initial access system information. The 5G cell may then transmit system information upon request by a connected UE or when the system information is updated.
Abstract:
Embodiments of an Evolved Node-B (eNB) and methods for transition between idle and connected modes are disclosed herein. The eNB may receive uplink data packets from a User Equipment (UE) using a lightweight Radio Resource Control (RRC) connection between the eNB and the UE. The eNB may transmit an RRC connection release message to the UE to indicate a transition of the UE to an RRC idle mode for the RRC connection. The RRC connection release message may include an indicator of whether the UE is to store context information for the RRC connection. The eNB may further receive additional uplink data packets according to the stored context information using a lightweight RRC connection.
Abstract:
Systems and methods for bearer splitting among multiple radio links are disclosed herein. User equipment (UE) may be communicatively coupled to an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Node B (eNB) by multiple radio links (e.g., an LTE link and a WLAN link). A transmitter may dynamically determine a splitting policy for how to split traffic among each link (e.g., what proportion to send over each link). In some embodiments, the transmitter may determine the splitting policy explicitly based on lower layer metrics. Alternatively, or in addition, each radio access interface may request data when a transmission opportunity becomes available, and the splitting policy may be determined implicitly from the data requests. For a UE, the splitting policy may be determined with network assistance, which may include a resource allocation for an LTE link, a probability of successful transmission over a WLAN link, and/or the like.