Abstract: Apparatuses, systems, and methods for a dual subscriber identity module (SIM) dual standby (DSDS) capable user equipment (UE) devices to perform data operations with a first SIM that is not capable of or preferred for packet switched (PS) services and a second SIM that is capable of or preferred for PS services. A timer may be initiated upon radio frequency (RF) chain handover from the first SIM to the second SIM, whereupon a first connection associated with the first SIM is maintained in an idle state while the timer is running. Upon expiration of the timer, the UE may determine whether to send a scheduling request to maintain or release the first connection. The timer may be utilized when a call is dropped over the first connection, to increase the likelihood of successfully receiving a callback. The timer may be shortened in duration to reduce reception of spam messaging.

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may determine that a voice over long term evolution (VoLTE) service has encountered a threshold quantity of failures within a particular period of time. The apparatus may transfer from a VoLTE mode associated with the VoLTE service to another mode for a voice call based on determining that the VoLTE service has encountered the threshold quantity of failures within the particular period of time.

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may determine that a voice over long term evolution (VoLTE) service has encountered a threshold quantity of failures within a particular period of time. The apparatus may transfer from a VoLTE mode associated with the VoLTE service to another mode for a voice call based on determining that the VoLTE service has encountered the threshold quantity of failures within the particular period of time.

Abstract: Disclosed are methods and apparatus optimizing the performance of a radio access technology, such as LTE, in a single radio wireless communication system supporting multiple radio access technologies, such as both LTE and 1x CDMA. The methods and apparatus effectuate this optimization in a single radio LTE (SRLTE) device, for example, through increasing system parameters, such as Slot Cycle Index (SCI) related to a maximum allowed periodicity of when a wireless device tune away from a LTE data call to monitor paging from 1x CDMA. Increasing the SCI value in the wireless device reduces the periodicity of 1x CDMA paging tune away from an LTE data call, thereby optimizing the LTE performance.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a first device. The first device operates a ROHC compressor in a first state at a ROHC sublayer to compress a first packet to be transmitted to a second device. The first packet includes information for a ROHC decompressor to establish a ROHC context. The information enables the ROHC decompressor to decompress a second packet compressed by the ROHC compressor when operating in a second state. The first device determines, at a sublayer or a layer lower than the ROHC sublayer, whether the first packet has been successfully received at the second device. The first device continues operating the ROHC compressor in the first state in response to a determination that the first packet has not been successfully received at the second device.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a first device. The first device operates a ROHC compressor in a first state at a ROHC sublayer to compress a first packet to be transmitted to a second device. The first packet includes information for a ROHC decompressor to establish a ROHC context. The information enables the ROHC decompressor to decompress a second packet compressed by the ROHC compressor when operating in a second state. The first device determines, at a sublayer or a layer lower than the ROHC sublayer, whether the first packet has been successfully received at the second device. The first device continues operating the ROHC compressor in the first state in response to a determination that the first packet has not been successfully received at the second device.

Abstract: Disclosed are methods and apparatus for reducing a call setup time in wireless communication systems, particularly for systems employing SVLTE where an LTE network is used for data and a 1×CDMA network for voice. The methods and apparatus feature the capability during mobile terminated (MT) calls to modify a normal mode of operation of a predefined operation in a mobile terminal (e.g., call switched fallback (CSFB)), wherein processes normally performed for between a first network (e.g., LTE) are not performed in the mobile terminal, allowing a page response message to be sent directly, and thus sooner, to the other network (e.g., 1×CDMA) in response to an MT call page. This hybrid operation allowing the skipping of normal processes reduces the time for call set up.