Abstract:
A method and/or apparatus for wireless communication in a multi-SIM user equipment includes receiving a list of neighboring base stations from a serving base station of a first SIM. The serving base station of a second SIM is identified and a final target base station is determined for a cell reselection procedure and/or cell change order procedure from among the neighboring base stations and the serving base station of the second SIM.
Abstract:
A multi-subscriber identity module (SIM) multi-standby user equipment (UE) improves recovery of an original operation of a first radio access technology (RAT) when the UE tunes away from the first RAT. In some instances, the UE communicates with the first RAT on a transmit chain and a receive chain and then tunes to a second RAT on the receive chain to monitor downlink communications or activities of the second RAT. The UE transmits on the first RAT over the transmit chain, while tuned to the second RAT. Thus, the UE continues to perform uplink transmission when the UE tunes away, which allows a base station of the first RAT to track the UE for downlink beam-forming.
Abstract:
Methods and apparatuses for predicting candidates for cell reselection are presented. In some embodiments, such a method may include determining, by a mobile device, a current direction of motion of the mobile device; determining, by the mobile device, based on network topology information, that at least two cells of a plurality of cells are located in the current direction of motion of the mobile device; prioritizing, by the mobile device, the at least two cells of the plurality of cells for reselection; measuring, by the mobile device, signal properties of the at least two prioritized cells based on the prioritizing; and selecting, by the mobile device, a first cell of the at least two prioritized cells for reselection, based on: a location of the first cell and the signal properties of the first cell.
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:
Methods and apparatus for wireless communication comprise receiving a measurement configuration message indicating a Dedicated Channel (DCH) measurement occasion (DMO) gap for inter-radio access technology (IRAT) measurements of a first technology type during operation of the UE according to a second technology type. The methods and apparatus further comprise determining an adjusted DMO gap based on at least one DMO gap adjustment rule, wherein the adjusted DMO gap is shorter in duration than the DMO gap. Moreover, the methods and apparatus comprise performing a frequency measurement for the second technology type during the DMO gap in one or more open time slots made available by the adjusted DMO gap.
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 includes determining whether a serving cell signal strength is below a first threshold. The method also includes determining whether an inter/intra frequency neighbor cell signal strength is below a second threshold. The method further includes determining whether a number of idle traffic time slots for inter-radio access technology IRAT measurements is less than a third threshold. Finally, a frequency of IRAT measurements in time slot zero (TS0), a downlink pilot time slot (DwPTS), an uplink pilot time slot (UpPTS), and a gap (GP) is increased. The increase is based on the determined serving cell signal strength, the determined inter/intra frequency neighbor cell signal strength, and the determined number of idle traffic time slots.
Abstract:
A method of wireless communication includes initiating a specific call type and transmitting a first random access preamble via a first random access preamble channel when initiating the specific call type. The method also includes transmitting a second random access preamble via a second random access preamble channel when initiating the specific call type. The second random access preamble is transmitted without waiting for a response to the transmitted first random access preamble
Abstract:
A method of wireless communication includes returning to a base station after a handover failure. The method also includes receiving consecutive transmit power control (TPC) UP commands within a first predetermined time period. The method further includes receiving enhanced uplink dedicated channel uplink control channel (E-UCCH) instances within a second predetermined period. The method further includes increasing a TPC step size after receiving a first predetermined number of consecutive TPC UP commands during the first predetermined time period and after receiving a second predetermined number of E-UCCH instances during the second predetermined time period.
Abstract:
A method of wireless communication receives a frequency list for fast return when in idle mode in a first radio access technology (RAT). The method updates the frequency list for fast return to the first RAT while in connected mode in the first RAT. The update is based on inter and intra frequency measurement control messages from each serving base station during mobility.