Abstract:
In an aspect, a UE receives, from a first cell, cell reselection information (e.g., via RRCConnectionRelease message or RRCRelease message). The UE identifies one or more omitted parameters associated with a SIB for cell reselection (e.g., SIB4, SIB5 or SIB24) that are omitted from the cell reselection information. The UE performs a cell reselection procedure from the first cell to a second cell based on the cell reselection information and one or more locally determined values for the one or more omitted parameters.
Abstract:
Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a user equipment (UE) may communicate with a base station using various techniques designed to limit power consumption and improve throughput at the UE. In some instances, it may be appropriate for a UE to operate in a low latency mode in which reducing latency is prioritized over providing other efficiencies in order to improve the quality or functionality of an application. As described herein, in such instances, a user of a UE, or an application running on the UE, may request to operate in a low latency mode, and a hardware or software component of the UE may receive the request and configure various other components of the UE to operate in the low latency mode.
Abstract:
Aspects disclosed herein relate to determining frequencies for measuring cells in reselection. A set of frequencies over which to measure cells for reselection can be prioritized, wherein one or more first frequencies in the set of frequencies correspond to frequencies of previously visited closed subscriber group (CSG) cells, multimedia broadcast multicast services (MBMS) frequencies, etc. A command to deprioritize one or more second frequencies for reselection can be received, and it can be determined whether to deprioritize the one or more second frequencies in the prioritized set of frequencies based at least in part on the command. One or more cells can be measured over the prioritized set of frequencies based at least in part on respective priorities of the set of frequencies and may be evaluated for reselection.
Abstract:
Aspects of the present disclosure provided techniques for wireless communications, and more particularly, to techniques and apparatus for publishing service availability. According to certain aspects, a method for wireless communications by a user equipment (UE) is provided. The method generally includes providing status information to a presence server that the UE is available via the first network service, wherein the presence server is a network-based entity that provides presence status services for a plurality of destination devices including the UE, detecting one or more operational limitations that might prevent the UE from being available via the first network service, and updating the presence server, in response to the detecting, to indicate the UE is not available via the first network service.
Abstract:
Methods, systems, and devices are described for reducing congestion in a wireless communications system. A second connection failure is detected, and a difference between a timestamp of the second connection failure and a timestamp of a first connection failure is calculated. Upon determining that the difference satisfies a first time threshold, information relating to one or more previous connection failures is cleared. A time period is identified. A number of connection failures from a cell that occur during the time period is identified. A determination is made as to whether the number of connection failures satisfies a threshold. Upon determining that the number of connection failures satisfies the threshold, a future connection request may be withheld for a time period.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided in which user equipment initiates a location management procedure after receiving a mobility command and regardless of whether idle mode signaling reduction (ISR) is active when the mobility command is received. The user equipment moves from a first network to a second network in response to the mobility command and sends an update request. The user equipment may autonomously deactivate ISR. The user equipment may generate data for transmitting to a packet data network through the second network if data was not available when the mobility command was received.
Abstract:
Certain aspects of the present disclosure relate to techniques for improving a circuit-switched fallback (CSFB) user experience. In aspects, methods and systems for autonomously returning a user equipment (UE) from a 2G (2 nd generation)/3G (3 rd generation) network to an LTE (Long Term Evolution) network are provided. The UE may store a flag to note whether a current circuit switched (CS) call in the 2G/3G network is a result of a CSFB. The UE, in response to detecting a termination of the current CS call in the 2G/3G network and determining that the terminated call was a CSFB call (e.g., from the status of the flag), may trigger a mobility mechanism to autonomously return the UE to the LTE network.
Abstract:
Certain aspects of the disclosure relate generally to search of radio access technologies (RAT). For example, certain aspects of the present disclosure relate to a technique for facilitating higher priority radio access technology (RAT) search and cell reselection in areas having a plurality of overlapping RATs, such as GSM and LTE. According to certain aspects, a user equipment (UE) may generate a local set of cell reselection parameters based on one or more default cell reselection parameters and/or stored system information received during previous connects with found cells. According to certain aspects, the UE may perform cell reselection based on the local set of cell reselection parameters.
Abstract:
Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation.
Abstract:
Devices and methods are provided for optimizing the timing of multi-mode system scans in a wireless communication environment. In one embodiment, the method may involve determining at least one of location and movement of a mobile entity (ME). The method may involve adjusting a timer between preferred system scans based on the at least one of the location and the movement of the ME. For example, determining may involve utilizing a movement sensor (e.g., an accelerometer and/or a voltage-controlled oscillator accumulator) to detect the movement of the ME, and/or receiving signals from a Global Positioning System or the like.