Abstract: A method and apparatus enable high-speed downlink data transmissions to continue while a baton handover is in progress. In an aspect of the disclosure, a method of wireless communication includes switching an uplink from a source cell to a target cell while maintaining a downlink with the source cell, and transmitting over the uplink to the target cell at least one metric of quality of the downlink. In one example, the metric of quality may be a CQI. In another example, the metric of quality may be a HARQ ACK/NACK. The metric of quality of the downlink may be transmitted from the target cell to the source cell, directly or by way of a radio network controller.

Abstract: A measurement reporting method reduces battery waste. A UE receives a list of GSM neighbor cells and measures the signal strength of each of the GSM cells in the list. The UE performs base station identity code (BSIC) confirm/reconfirm procedures only for the cells having a signal strength above a threshold.

Abstract: Certain aspects of the present disclosure provide methods and apparatus that may help alleviate load conditions by taking action to select one or more mobile stations (MSs) for handover to a neighbor base station are provided.

Abstract: A method of wireless communication includes returning to a base station after a handover failure. The method also includes measuring a length of time between receiving a handover command and returning to the base station. The method further includes setting a physical uplink channel transmit power based on the measured length of time. The physical uplink channel can be an enhanced physical uplink channel (E-PUCH) of a high speed uplink packet access (HSUPA)wireless network.

Abstract: A method of wireless communication adjusts the transmit power for high speed data communications. A UE determines whether a random access channel is configured on an uplink traffic time slot. When the random access channel is configured on the uplink traffic time slot, the UE transmits a high speed data channel with adjusted transmit (TX) power based at least in part on transmit power used for a scheduling request.

Abstract: An early BSIC (base station identity code) abort procedure includes comparing a first signal strength of a serving cell with a first threshold and comparing a second signal strength of a target cell to a second threshold. The first threshold is a sum of a network indicated threshold and a user equipment (UE) threshold. The second threshold is a difference between the network indicated threshold and the UE threshold. When the first signal strength is below the first threshold and the second signal strength is above the second threshold, the base station identity code (BSIC) procedure is initiated. A number of BSIC failure attempts is adaptively set before terminating the BSIC procedure.

Abstract: A method and apparatus for facilitating user equipment backoff during a random access procedure is provided. The method may comprise transmitting, by a user equipment (UE), at least one synchronization code to a Node B, determining that the at least one transmitted synchronization code was not acknowledged by the Node B, and modifying a maximum value of a random delay window in response to said determining.

Abstract: A system and method store provisioning data supporting a plurality of service providers in a VSIM internal memory unit of a mobile device. A user may selectively enable provisioning data supporting one of the plurality of service providers stored in the VSIM internal memory unit to conduct a wireless communication. An embodiment permits backing up, retrieving and restoring personal data in the VSIM internal memory unit using a remote database. Another embodiment allows a mobile device to select an optimal service provider to conduct a wireless communication. The optimal service provider may be determined based upon mobile device location, communication usage request and/or time and date.

Abstract: Methods, systems, and devices are described for concurrently performing handoff-related measurements for neighbor cells using multiple input multiple output (MIMO) antenna resources. In one example, a mobile device is in communication with a serving cell. Handoff-related measurements of first wireless signals from a first neighbor cell are performed. The first wireless signals are received at first MIMO antenna resources of a device. Handoff-related measurements of second wireless signals from a second neighbor cell are performed, as well. The second wireless signals are received at second MIMO antenna resources concurrently with the first wireless signals received at the first MIMO antenna resources. The first handoff-related measurements and the second handoff-related measurements may be performed during a scan interval. A type of handoff-related measurement to perform may be determined based on a determined length of the scan interval.

Abstract: A method and an apparatus for wireless communications comprising determining that a first handover from a source cell to a target cell has failed; and performing a second handover from the source cell to a first neighbor cell different from the source cell and from the target cell. In on aspect, the method and apparatus further comprising performing the second handover by sending a signal to the first neighbor cell and receiving a return signal from the first neighbor cell; and further comprising sending a message to initiate radio resource setup between the first neighbor cell and a radio network controller (RNC); and receiving a connection resetup and a Physical Channel Reconfiguration message from the radio network controller (RNC).

Abstract: Certain embodiments of the present disclosure provide methods and systems for saving battery power in frequency division duplex (FDD) or half-duplex FDD (H-FDD) wireless networks.

Abstract: Certain aspects of the present disclosure propose techniques for utilizing synchronization shift (SS) bits in Time Division Synchronous Code Division Multiple Access (TD-SCDMA) based uplink communications. The SS bits can be used for various purposes different from indicating timing of transmissions from a Node B to a user equipment.

Abstract: Uplink synchronization processes in multi-carrier time division-synchronous code division multiple access (TD-SCDMA) systems include determining uplink transmission timing for a first carrier frequency and performing uplink synchronization on the other carrier frequencies based on the transmission timing of the first carrier frequency. The transmission timing may be adjusted based on a timing offset that is measured between the received downlink pilot signals of the various carrier frequencies. User equipment may perform uplink synchronization individually with each of the carriers serviced by a particular Node B after receiving synchronization information regarding those carrier frequencies.

Abstract: A UE is configured to collect multiple absolute radio frequency channel numbers (ARFCNs) in parallel via a wideband receiver during a transmission gap. Inter-radio access technology (IRAT) measurements are performed based on the collected AFRCN samples.

Abstract: A method of wireless communications includes determining a period of time to trigger inter-radio access technology (IRAT) cell reselection. The method also includes adjusting the period of time accordingly, in which the adjusting is based on a target cell signal strength, the target cell belonging to a different RAT than a source cell. The period of time may also be determined based on the source cell signal strength and/or target cell signal strength, and adjusted accordingly.

Abstract: In geographical areas with incomplete Time Division Synchronous Code Division Multiple Access (TD-SCDMA) coverage, it may be beneficial for a multimode User Equipment (UE) to handover to a GSM network, a WCDMA network, a CDMA 1x RTT network, or an LTE network. When multiple networks are available to the UE and a poor signal quality is detected in the TD-SCDMA network, one of the available networks may be selected for inter-RAT handover based on a service type of the active call on the UE. For example, when a circuit-switched call, such as a voice call, is in progress on the UE, an inter-RAT handover to a GSM network occurs. In another example, when a packet-switched call, such as a data call, is in progress on the UE, an inter-RAT handover to a WCDMA network occurs. Selecting a network for inter-RAT handover based on an active call service type improves the service provided to the UE.

Abstract: A user equipment may reduce its wakeup time by performing at least a portion of a background public land mobile network (PLMN) search in conjunction with an inter-frequency and/or intra-frequency measurement. In such instances, the UE performs the background PLMN search subsequent to an inter-frequency and/or intra-frequency measurement using a radio frequency (RF) tuning and timing of the inter-frequency and/or intra-frequency measurement.

Abstract: A mobile device capable of communicating on multiple radio access networks simultaneously may concurrently operate calls of a first call type on a first network and a second call type on the second network. As the mobile device approaches the limits of the service area of the second network it may take measurements to result in the call of the second call type to be serviced by the serving cell of the first network which is serving the mobile device for the first call type. In this manner the mobile device may ensure that when it leaves the service area of the second network, the calls of the first call type and second call type are served by the same serving cell in the first network.

Abstract: The scheduling rate of the synchronization channel (SCH) base station identity code (BSIC) is adapted based on target cell signal metric such as, the signal quality and/or signal strength. The scheduling rate is decreased when the target cell metric is below a first threshold value and is increased when the target cell metric is above a second threshold value. The scheduling rate may also be adapted based on a serving cell signal metric.

Abstract: Aspects of the present disclosure allow a mobile station (MS) to maintain data activity while performing handover operations within the WiMAX network and listening to a CDMA 1x paging cycle. According to aspects, the MS maintains timing of a base station (BS) in a first radio access technology (RAT) and a BS in a second RAT. The MS may determine an expected timing of a paging cycle in the second RAT and send a sleep request to the BS in the first RAT such that the sleep interval coincides with the timing of the paging cycle in the second RAT. The MS may perform operations to ensure a sleep interval, after performing handover operations, coincides with the timing of the paging cycle in the second RAT.