Abstract:
An enhanced paging mechanism is provided for UEs waking up from a very long paging cycle to improve paging robustness and flexibility. Enhanced paging includes absolute time paging (ATP) and paging with extended wakeup time. For absolute time paging, a UE receives ATP configuration and uses the actual wall time to calculate paging occasion if a condition is satisfied. In one embodiment, the wall time is acquired from at least one of an internal UE clock, a GPS time, information broadcasted from the network, or information from a higher layer signaling. For paging with extended wakeup time, a UE applies a long paging cycle followed by multiple normal paging cycles after waking up from the long paging cycle. In one embodiment, the long paging cycle is infinite and the UE enters normal paging cycle only upon TAU-triggered paging or uplink traffic.
Abstract:
A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. The multicast MBMS bearer is associated with a Temporary Mobile Group Identifier (TMGI), and wherein the TMGI is associated with the communication group ID. The UE de-multiplexes DL traffic received either from the multicast MBMS bearer or from the unicast EPS bearer into a single group communication application.
Abstract:
A method of user equipment (UE) indication of traffic-related information to network is provided. The method comprises a UE determining a traffic indicator and transmitting the traffic indicator to a base station. In one embodiment, the traffic indicator indicates either that default power consumption is preferred or low power consumption is preferred. For example, when the UE is in background traffic or sparse traffic, low power consumption is preferred. In another embodiment, the traffic indicator indicates a time pattern of the traffic history. From the network perspective, upon receiving and evaluating information contained in the traffic indicator, the network triggers a QoS modification procedure by applying one or more QoS modification algorithms.
Abstract:
A method of triggering and reporting traffic statistics in a cellular network is proposed. A UE establishes an RRC connection with a base station. The UE collects traffic statistics upon detecting a trigger event. The traffic statistics comprises packet inter-arrival time. The trigger event may be detected by the UE or by the base station. The UE then determines a representation of the traffic statistics and report the result to the base station. The report may be triggered by the UE or by the base station based on another trigger event. Upon receiving the traffic statistics, the base station determines RRC reconfiguration parameters. In one example, DRX timer values are determined based on intra-burst packet inter-arrival time. In another example, RRC release timer is determined based on inter-burst packet inter-arrival time.
Abstract:
Various solutions for reporting aggregated bandwidth capability with respect to an apparatus in mobile communications are described. The apparatus may transmit a plurality of capability signaling of aggregated bandwidth in band combination level to a network node. Each of capability signaling of aggregated bandwidth may indicate a maximum aggregated bandwidth across component carriers. The apparatus may transmit a feature set per component-carrier, which includes channel bandwidths, to the network node for determining a channel bandwidth configuration set according to the plurality of capability signaling of aggregated bandwidth and the feature set per component-carrier. The apparatus may communicate with the network node based on the channel bandwidth configuration set.
Abstract:
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. In certain configurations, the UE establishes a connection supporting an extended reality (XR) application service with a base station. The UE reports, to the base station under a trigger condition, a buffer status report (BSR) to indicate a buffer size for data to be transmitted to the base station. The BSR includes information related to a corresponding BSR table. The UE receives a configuration instruction from the base station. The UE configures resources on the UE.
Abstract:
A UE includes an application processor that generates application data to be transmitted to a base station. The UE also includes a modem that determines a downlink active time period. The modem or the application processor determines whether the application data is available before the downlink active time period. The modem or the application processor withholds the transmission of the application data to the base station until the downlink active time period. The modem transmits the application data to the base station during the downlink active time period.
Abstract:
A method of UE-initiated radio resource control (RRC) connection release procedure in LTE/5G network is proposed. A UE is required to establish RRC connection and enter RRC_Connected state for data communication. However, power consumption from functions for UE mobility can be significant, especially in RRC_Connected state. It is thus desirable for the UE to be able leave the RRC_Connected state by triggering an RRC connection release procedure. The triggering conditions may include: 1) UE has no data transmission for quite some time; 2) UE is in low battery status; 3) UE has incoming voice/video call from another USIM; or 4) UE has outgoing voice/video call in another USIM.
Abstract:
A method of configuring a set of active cells among neighboring cells to reduce latency and interruption for inter-cell mobility is proposed. The set of active cells is an active set of cells among which UE can do fast cell switching. The set of active cells is configured by the network based on UE measurement report or network deployment information. UE maintains the configuration and can perform pre-synchronization to the configured active cells in downlink (DL) only or in both DL and uplink (UL). UE maintains the DL/UL synchronization with the active cells, and applies configuration once UE is indicated to switch to an active cell as the target cell. Because UE maintains the configuration and DL/UL timing of the target cell before receiving the cell-switch command, the mobility latency and interruption time for inter-cell mobility is reduced.
Abstract:
Apparatus and methods are provided for virtual carrier operation in wireless systems with large carrier bandwidth. In one novel aspect, virtual carrier (VC) with a block of physically contiguous radio resources within a component carrier is configured. In one embodiment, the UE configures a downlink (DL) common virtual carrier (CVC) and an uplink (UL) CVC, which carry control information for the UE, and one or more DL/UL dedicated VCs (DVCs), which carry data services. In one embodiment, the UE obtains the CVC configuration information including the channel bandwidth and the physical location through system information. In another embodiment, the UE obtains DVC configuration through an RRC-layer signaling. In another novel aspect, the UE obtains a VC configuration switch command through either a MAC signal or a PHY signal, and subsequently reconfigures one or more configured VCs based on the received switch command.