Abstract: Minimizing conflicts between different radio access technologies (RATs) is disclosed herein which include monitoring, by a user equipment (UE), a first use of a UE Radio Frequency (RF) resource by a first Radio Access Technology (RAT). The UE monitors a second use of the UE resource by a second RAT. The UE is served by a current serving cell in the second RAT. The UE may also determine a percentage of conflict between a first use of a UE resource by a first RAT and the second use of the UE resource by the second RAT over a predefined period of time, and initiating, by the UE, a cell reselection attempt to one or more neighboring cells of a plurality of neighboring cells serving the second RAT based on the determined percentage of conflict exceeding a predetermined threshold.

Abstract: Various embodiments include methods implemented on a mobile communication device for sharing network information among subscriptions when both a first subscription and a second subscription are in an idle mode. The methods may include determining whether the first subscription and the second subscription share a network operator and are camped on a same base station. If so, the first subscription may receive network information from the base station and store the network information in a shared memory of the mobile communication device that can be accessed by the second subscription. The second subscription may then perform some idle mode operations using the network information stored in the shared memory.

Abstract: Methods and apparatus for wireless communication are provided. In one aspect, a method of wireless communication comprises receiving a first resource request including a first interval for at least one timing-priority task associated with a first radio access technology and a second resource request including a second interval for at least one timing-non-priority task associated with the first radio access technology. The method comprises granting the first resource request and reserving the first interval for the at least one timing-priority task associated with the first radio access technology. The method comprises receiving at least a third resource request including a third interval for at least one timing-priority task associated with a second radio access technology.

Abstract: Various embodiments include methods for scheduling reception activities on a wireless communication device having a first receive chain and a second receive chain. Various embodiments may include identifying a first reception activity and a second reception activity of a first subscription scheduled on the first receive chain, in which a duration of the second reception activity is longer than a duration of the first reception activity. The wireless communication device may determine whether the first reception activity and the second reception activity can be performed concurrently on the first receive chain, and schedule the second reception activity on the second receive chain in response to determining that the first reception activity and the second reception activity cannot be performed concurrently on the first receive chain.

Abstract: Various embodiments implemented on a mobile communication device provide methods for skipping power measurements of frequency bands included in a list of frequency bands received from a first subscription's network to conserve power and to increase the likelihood of avoiding a coexistence event between a first subscription and a second subscription. Specifically, a processor of the mobile communication device may order the list of frequency bands such that non-interfering frequency bands are ordered before interfering frequency bands. The processor may then take power measurements of frequency bands in the list, in order, until the processor determines that a power measurement has satisfied a minimum power threshold. In response to such a determination, the device processor may report the power measurement that satisfies the minimum power threshold to the first subscription's network and may not take any more power measurements of the remaining frequency bands in the list.

Abstract: Various embodiments enable cell broadcast reception on a multi-SIM mobile communication device with first and second subscriptions for respective technologies. A multi-SIM device may measure channel conditions for the first and second radio access technologies, determine whether the channel conditions of the first radio access technology are greater than or equal to a threshold for receiving cell broadcasts, determine whether the channel conditions of the second radio access technology are greater than or equal to the threshold when the channel conditions of the first radio access technology are less than the threshold, and designate the second radio access technology to receive cell broadcasts when the channel conditions of the second radio access technology are greater than the threshold and disabling cell broadcast reception on the first radio access technology. A Voice or Data call mode on one technology may require another technology to be designated to receive cell broadcasts.

Abstract: A method for improving data throughput on a subscription includes: filtering data traffic throughput on a first subscription; comparing the filtered data traffic throughput to a threshold data rate; determining if the filtered data traffic throughput is greater than a threshold data rate value; and in response to a determination that the filtered data traffic throughput is equal to or less than the threshold data rate value, determining whether a tune away (TA) mode different than a first TA mode increases data traffic throughput on the first subscription.

Abstract: Various embodiments leverage the typical manner in which a RAT selects a supported frequency band listed in its acquisition database and the standard communications with its network indicating the supported frequency bands to avoid potential coexistence events with one or more other RATs. In particular, various embodiments include methods for avoiding band interference between RATs operating on a multi-SIM communication device by identifying the frequency bands available to each of the RATs, comparing the identified frequency bands to determine whether any RAT's frequency bands will interfere with one or more other RAT's frequency bands, and in response to determining that there is a possibility of frequency band interference, removing those interfering frequency bands from that RAT's acquisition database. As a result, during standard communications, that RAT will report to its network that it supports only non-interfering frequency bands.

Abstract: A stationary access terminal, such as a stationary remote sensor, capable of wireless communication with a network is provided. The access terminal obtains sector information associated with a wireless network node by establishing a communication link with the network node. The access terminal then stores the sector information in non-volatile memory, and later retrieves the sector information from the memory, for example, after a subsequent boot up or wake up event. The stored sector information is used by the access terminal to establish a subsequent communication link with the network node, and may include at least one of channel, band, and pseudo-random number sequence information. The access terminal may also store overhead messages received from the network node in the non-volatile memory. The stored overhead messages may later be retrieved to establish system operating parameters of the network node after the subsequent boot up or wake up event.

Abstract: A method includes: detecting that a short data packet transmission will be performed on a first subscription over a first time period; determining whether a page reception will be performed on a second subscription during a second time period that includes at least a portion of the first time period; and in response to a determination that the page reception will be performed on the second subscription during the second time period, deferring the short data packet transmission on the first subscription until after the page reception on the second subscription is performed.

Abstract: Embodiments include systems and methods for managing tune-way in a multi-subscription communication device. A processor of a multi-subscription communication device may determine a first signal strength of a first cell signal and a second signal strength of a second cell signal. The processor may perform a tune-away procedure to a weaker of the first cell signal and the second cell signal. Embodiments may include determining signal strengths of each component carrier of the first cell signal and the second cell signal.

Abstract: Embodiments include systems and methods for managing tune away in a multi-subscription communication device. A processor of a multi-subscription communication device may determine a first throughput of a first carrier signal and a second throughput of a second carrier signal. The processor may perform a tune-away procedure to a carrier signal having a lower throughput from among the first carrier signal and the second carrier signal.

Abstract: Methods, systems and devices are provided for managing quad SIM functionality on a mobile device. The method includes maintaining a first subscription and a second subscription active in slotted idle states on a first RF chain on the mobile device. The first subscription being associated with a first SIM and the second subscription being associated with a second SIM. The method also includes maintaining a third subscription and a fourth subscription active in slotted idle states on a second RF chain on the mobile device. The third subscription being associated with a third SIM and the fourth subscription being associated with a fourth SIM. In the slotted idle states the first, second, third and fourth subscriptions are able to monitor pages in respective paging channel slots. Further, the method includes switching the third subscription to the first RF chain in response to the fourth subscription entering a dedicated traffic state.

Abstract: Various embodiments include methods implemented on a mobile communication device for sharing network information among subscriptions when a first subscription is in a data communication session and a second subscription is in an idle mode. The methods may include determining whether the first subscription and the second subscription share a network operator and are camped on a same base station. If so, the first subscription may receive network information from the base station and store the network information in a shared memory of the mobile communication device that can be accessed by the second subscription. The second subscription may then perform some idle mode operations using the network information stored in the shared memory.

Abstract: Methods and apparatus for wireless communication are provided. In one aspect, an apparatus for wireless communication comprises a transmitter configured to transmit data at a first frequency on a first radio access technology. The apparatus comprises a receiver configured to receive data at the first frequency on the first radio access technology. The apparatus comprises a processor configured to tune the transmitter to the first frequency associated with the first radio access technology. The processor is configured to tune the receiver from the first frequency to a second frequency associated with a second radio access technology while the transmitter remains tuned to the first frequency associated with the first radio access technology. The processor is further configured erase data to be transmitted for the first radio access technology from at least one transmission channel slot when the first frequency and the second frequency satisfy a predetermined combination of frequencies.

Abstract: Methods, systems and wireless communication devices are provided for maintaining wide area network (WAN) access information in a database accessible to a local area network (LAN) server. A processor of a wireless communication device connected to the LAN determines that the wireless communication device will enter a WAN associated with the WAN access information. The wireless communication device processor may obtain the WAN access information from the LAN accessible database accessible to the LAN server. The wireless communication device processor may use the WAN access information obtained from the LAN accessible storage device to enter the WAN from the LAN.

Abstract: Various embodiments include methods implemented on a mobile communication device for sharing network information among subscriptions when a first subscription is in a voice call and a second subscription is in an idle mode. The methods may include determining whether the first subscription and the second subscription share a network operator and are camped on a same base station. If so, the first subscription may receive network information from the base station and store the network information in a shared memory of the mobile communication device that can be accessed by the second subscription. The second subscription may then perform some idle mode operations using the network information stored in the shared memory.

Abstract: Methods, systems and devices are provided for selecting one or more target devices for device-to-device (D2D) communication with a device. A device processor may determine whether a battery power level of the device is below a threshold battery power level. The device processor may establish a received power level threshold in response to determining that the battery power level of the device is below a threshold power battery level. The device processor may determine whether a received power level of a signal from target devices for D2D communication is above the received power level threshold. In response to determining that the received power level from a target device is above the received power level threshold, the device processor may permit D2D communication with that target device.

Abstract: Various embodiments implemented on a mobile communication device provide methods for skipping power measurements of frequency bands included in a list of frequency bands received from a first subscription's network to conserve power and to increase the likelihood of avoiding a coexistence event between a first subscription and a second subscription. Specifically, a processor of the mobile communication device may order the list of frequency bands such that non-interfering frequency bands are ordered before interfering frequency bands. The processor may then take power measurements of frequency bands in the list, in order, until the processor determines that a power measurement has satisfied a minimum power threshold. In response to such a determination, the device processor may report the power measurement that satisfies the minimum power threshold to the first subscription's network and may not take any more power measurements of the remaining frequency bands in the list.

Abstract: A throttling mechanism for downlink transmission control is disclosed, in which, in one aspect, a downlink low data-rate transmission may be received at a user equipment (UE). The UE may then measure a performance metric indicating performance of the downlink low data-rate transmission. The UE controls the downlink low data-rate transmission by dynamically adjusting the number of receiving antennas in use in response to comparison results of the performance metric and a threshold value.