Abstract: Certain aspects of the present disclosure provide techniques and apparatus for Channel Quality Information (CQI) reporting of a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) multiple Universal Subscriber Identity Module (USIM) mobile terminal during a High Speed Downlink Packet Data (HSDPA) operation. For certain aspects, a method of wireless communication generally includes reporting CQI for a first call with a first subscriber identity and receiving scheduling information for at least the first call with the first subscriber identity and a second call with a second subscriber identity, wherein the scheduling information for both the first and second calls are based on the CQI reported for the first call.

Abstract: Certain aspects of the present disclosure relate to a method for hardware activation of dual USIM TD-SCDMA multimode mobile terminals. The technique effectively provides for efficient power consumption. In one aspect, a mobile terminal may register dual mobile identifiers on a first radio access technology (RAT) using a first hardware module. If a call is set up, the mobile terminal activates a second hardware module and registers the unused mobile identifier with the second RAT.

Abstract: Wireless communication in a radio access network may be implemented when a user equipment (UE) is in active communication with a serving node B using a first international mobile subscriber identity (IMSI) and a communication request is made for a second IMSI associated with the same UE. The communication request to the second IMSI of the UE is directly through the serving node B rather than through a general page from the cells of the UE's location area or routing area. The direct communication may be through a page from the serving node B or through a unicast communication directly to the UE from the serving node B.

Abstract: Methods and apparatus for configuring and scheduling paging intervals for a mobile station (MS) having multiple subscriber identity modules (SIMs) to be aligned are provided. The MS having multiple SIMs may operate in a network via a particular radio access technology (RAT), such as Code Division Multiple Access (CDMA) EVDO (Evolution-Data Optimized). By having aligned paging intervals, the MS may wake up only once during the paging cycles for the various SIMs rather than waking up multiple times, thereby reducing power consumption of the MS during idle mode compared to a conventional MS with multiple SIMs.

Abstract: Certain aspects of the present disclosure relate to a method for improving location area and routing area update procedures in a multiple-USIM mobile terminal. A technique is provided for allowing the mobile terminal to reduce update procedures by using a message for multiple USIMs. The discussed technique reduces the number of messages exchanged and CPU processing.

Abstract: Certain aspects of the present disclosure provide techniques for resource allocation for a TD-SCDMA multiple USIM mobile station. According to certain aspects, a base station may send allocation for a first call with a first subscriber identity to a UE that supports multiple subscriber identities, wherein the allocation for the first call comprises allocation of at least a first uplink time slot and at least a first downlink time slot in a frequency carrier and send the UE allocation for a second call with a second subscriber identity, wherein the allocation for the second call comprises allocation of at least a second uplink time slot and at least a second downlink time slot in the frequency carrier, wherein the second uplink time slot is different than the first uplink time slot.

Abstract: Wireless communication in a multicarrier radio access network, such as a (TD-SCDMA) network, may be implemented where a user equipment (UE) maintains communication over various carrier frequencies in the multicarrier network. The UE will receive a downlink pilot channel transmitted on every subframe on a primary carrier frequency. The UE will also receive a downlink pilot channel transmitted on less than every subframe on a secondary carrier frequency The downlink pilot channel is sent in subframes on the secondary carrier frequencies using a particular period and offset to reduce or minimize interference.

Abstract: Certain aspects of the present disclosure relate to a technique for scheduling TD-SCDMA idle intervals, wherein a frame for inter-RAT measurement is selected based on a number of UEs allocated.

Abstract: Certain aspects of the present disclosure relate to a method for efficient measurement and handover of a mobile terminal with multiple USIMs. According to one aspect, a source Node B may initiate calls with first and second subscriber identities associated with a UE that supports multiple subscriber identities and transmit a request for a measurement report to the UE, the request specifying the first subscriber identity. The subscriber identities may be associated with a UE by association with an International Mobile Equipment Identity (IMEI). The source Node B may determine to handover the calls for the first and second subscriber identities to a target Node B based on the measurement report. The source Node B may transmit handover commands to instruct the UE to handover calls for the first and second subscriber identities to the target Node B.

Abstract: Wireless communication in a radio access network may be implemented where a user equipment (UE) sends a hold signal to a Node B indicating that data transmission to the UE is to be put on hold. The UE may resume data transmission from the Node B by sending a resume signal to the Node B. During the hold in transmission, the UE may measure a GSM network to assist in handover of the UE between a TD-SCDMA network and a GSM network.

Abstract: In an area covered by multiple different radio access networks, a user equipment (UE) capable of accessing each of the multiple networks at the same time may provide additional service type setup for different call types. The UE registers each of the available call types with a first radio access network. Calls of one of the registered call types may be established, whether UE-originated or UE-terminated, with the first radio access network. When initiating a call of another type, the UE may initiate a different-typed call with another radio access network in the area, while maintaining the call of the first call type with the first radio access network.

Abstract: Post-hard handover processing in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network may be improved to allow operation of High Speed Packet Access (HSPA) in hard handover. For example, uplink synchronization may be completed concurrent with HSPA to quickly resume HSPA operation in hard handovers. User Equipment (UE) may receive downlink data while completing uplink synchronization. In another example, a unique SYNC_UL code may be assigned to a UE for hard handover. The unique SYNC_UL code allows Node Bs of the TD-SCDMA network to know which UE is performing hard handover. When a Node B is receiving the unique SYNC_UL, the Node B may begin to allocate UL data grants. After receiving UL data from the UE, the Node B may resume High Speed Downlink Packet Access (HSDPA).

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: Wireless communication within an area covered by multiple radio access networks may be accomplished where a user equipment (UE) is configured for first and second radio access networks. The UE attaches to the first radio access network, and, while maintaining the attachment to the first radio access network, also attaches to the second radio access network.

Abstract: In geographical areas with incomplete coverage of Time Division Synchronous Code Division Multiple Access (TD-SCDMA) networks, it may be beneficial for a multimode User Equipment (UE) to register with and monitor paging channels of a Base Transceiver Station (BTS) of a Code Division Multiple Access (CDMA) 1× Radio Transmission Technology (RTT). The UE may monitor the paging channels of the BTS of the CDMA 1× RTT network by entering discontinuous reception (DRX) from the Node B of the TD-SCDMA network. The Node B of the TD-SCDMA network schedules the UE's DRX to coincide with the paging interval appropriate for the UE determined by the UE's IMSI and network time information. After monitoring the paging channel, the UE reacquires the Node B of the TD-SCDMA network and receives data and HARQ transmissions.

Abstract: Transmission of certain channels between a User Equipment (UE) and a Node B (NB) in High Speed Packet Access (HSPA) of a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network may be scheduled during a UE's idle intervals. Scheduled transmissions during a UE's idle interval result in lost system resources because the transmissions do not occur. A NB may prevent conflicts between scheduled transmissions and a UE's idle period by prohibiting transfer of certain channels a predetermined number of radio frames before the UE's idle period. Alternatively, the NB may schedule transmission of certain channels with a predetermined delay to prevent the channels from being scheduled during the UE's idle period.

Abstract: User equipments (UEs) will monitor each frequency in a multicarrier wireless radio access network for at least one control channel that may contain downlink data allocations or other such messages from the network. This monitoring may be dynamically controlled with a physical layer indication received by the UE from a node B that designates a number of carrier frequencies of all of the carrier frequencies of the network. In response to this physical layer indication, the UE will monitor at least one control channel in the designated carrier frequency or frequencies.

Abstract: In geographical areas with incomplete coverage of Time Division Synchronous Code Division Multiple Access (TD-SCDMA) networks, it may be beneficial for a multimode User Equipment (UE) to handover to a Global System for Mobile Communications (GSM) network. Before handover, a multimode UE may receive an indication from a serving TD-SCDMA cell to enter a Discontinuous Reception (DRX) mode and perform measurement on a nearby GSM cell. After measurement, the UE receives a grant from the serving TD-SCDMA cell allowing the UE to transmit a measurement report to the serving TD-SCDMA cell. The TD-SCDMA cell may use the measurement report to determine if the multimode UE should handover to the GSM cell.

Abstract: Wireless communication in a multicarrier radio access network may be implemented where a user equipment (UE) maintains communication with various carrier frequencies in the multicarrier network. The UE will receive an indication from a node B to measure a signal quality on one of a number of carrier frequencies in the network. The UE will then measure the signal quality on the carrier frequency based on measurements using a downlink synchronization code transmitted by the node B on the downlink pilot channel of the carrier frequencies in the multicarrier network. The UE may then report the channel quality back to the node B.

Abstract: Open loop power control in Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) multi-carrier systems is facilitated through the determination of a value for open loop control on a primary carrier frequency which is then used to perform open loop control on at least one secondary carrier frequency in the multi-carrier system. This determined open loop control value may be applied using the value determined on the primary carrier frequency, or may be further adjusted using an estimated difference between received power of the primary carrier frequency and the secondary carrier frequencies, in selected aspects. When the pilot signals in the secondary carrier frequencies are transmitted at different power levels, this open loop control value may be further adjusted with a transmit power level offset.