Abstract:
A method and apparatus for wireless communication may provide for reduced data loss during mobility events in a wireless communication network capable of downlink carrier aggregation. Some aspects of the disclosure provide for maintaining data corresponding to a flow in at least one buffer at a Node B when the Node B acts as a serving cell for the same UE both before and after a serving cell change. Another aspect of the disclosure provides for transferring buffered data from a Node B that acts as a serving cell for a UE before a serving cell change, to a Node B that acts as a serving cell for the UE after the serving cell change.
Abstract:
Apparatus and method for wireless communication in a wireless communication network includes mapping a PCI command to different symbols across a plurality of slots, allocating the PCI command to the plurality of slots, and transmitting the PCI command across the plurality of slots on an Fractional Transmit Precoding Information Channel (F-TPICH) from a network device to a user equipment (UE).
Abstract:
Methods and apparatuses are provided for determining available uplink bandwidth as an achievable throughput for a link. An available link capacity of a link with a cell for a user equipment is estimated based on a communication quality measured in the cell. An available fraction of cell resources for the user equipment over the link is also estimated based at least in part on received assistance information. An available bandwidth of the cell is then estimated as an achievable throughput for the user equipment over the link as a function of the estimated available link capacity and the estimated available fraction of cell resources. Moreover, a network procedure can be performed based at least in part on comparing the achievable throughput to one or more thresholds.
Abstract:
Methods and apparatus for communication comprise determining whether a communication characteristic value meets or exceeds a communication characteristic threshold value. Additionally, the methods and apparatus comprise adjusting a retransmission request transmission rate when the communication characteristic value meets or exceeds the communication characteristic threshold value. Moreover, the methods and apparatus comprise sending a retransmission request to a network entity based on the adjusted retransmission request transmission rate.
Abstract:
Methods and apparatus for avoiding power scaling and controlling transmit power in uplink data transmission are provided. If a user equipment (UE) would be transmit-power limited when transmitting data concurrently on an uplink high speed dedicated physical control channel (HS-DPCCH) and an uplink data channel, the UE may forgo building data for transmission on the uplink data channel to avoid power scaling. If the UE would be transmit-power limited when transmitting data concurrently on an HS-DPCCH and a dedicated physical control channel (DPCCH), the UE may reduce the transmission power of a portion of the data transmitted on the DPCCH to avoid power scaling. The UE may also boost transmission power of a negative acknowledge transmission above network-specified power level.
Abstract:
Methods and apparatus for signaling adjustments include identifying, by a user equipment (UE), a change in a reachability state of the UE based at least in part on one or more channel metrics determined by a modem in the UE. Further, the methods and apparatus include adjusting a transmission of connectivity signals (e.g., keep-alive signals) to a server from an application on the UE, the adjusting being based at least in part on an indication of the change in the reachability state provided to the application via an interface in communication with the modem (e.g., modem application programming interface or API). Additionally, the methods and apparatus can include transmitting an indication of the change in the reachability state to the server. Moreover, the methods and apparatus may accommodate signaling adjustments for one or more applications on the UE and one or more servers in a wireless communication system.
Abstract:
The present disclosure presents a method and apparatus for improving demodulation reliability of an uplink (UL) high speed dedicated physical control channel (HS-DPCCH) at a base station. For example, the disclosure presents a method for receiving a secondary pilot channel from a user equipment (UE) on an uplink (UL) and demodulating the HS-DPCCH using at least the secondary pilot channel. As such, improved demodulation reliability of an uplink (UL) high speed dedicated physical control channel (HS-DPCCH) at a base station may be achieved.
Abstract:
Methods, computer-readable medium, and apparatus are described for adjusting uplink communication at a user equipment (UE) during wireless communication. The described aspects include determining uplink communication characteristic information corresponding to an uplink data rate based on one or more measurement values associated with transmissions by a modem on an uplink communication channel. Further, the described aspects include determining an adjusted uplink data rate based at least in part on the uplink communication characteristic information. Additionally, the described aspects include adjusting data transmission rate of an application layer entity based at least in part on the adjusted uplink data rate.
Abstract:
Systems and methods for modem control based on feedback are disclosed. In one embodiment, a modem observer module is associated with software within a computing device. The modem observer receives information from the modem relating to uplink bandwidth availability and/or network conditions that may impact uplink bandwidth. Based on the uplink bandwidth availability at the modem, the modem observer may throttle or limit the number of connections that are active by the applications.
Abstract:
Aspects of the present disclosure are directed to a user equipment, an RNC, or an application operable in a wireless communications network and methods. A network controller for wireless communication is configured to transfer data via a first user plane connection in a first radio access network and initiate a handover procedure of transmitting the user equipment to a second user plane connection in a second radio access network.