Apple Inc.

Kwangho Byun

Someet K Lal

Devrim Varoglu

Ajoy K Singh

Raj S Chaugule

Gencer Cili

Rajesh Ambati

Deepankar Bhattacharjee

Harshit Chuttani

Sanjay K Verma

Syed A Rahim

Described herein are systems and methods for improved transitions continuity between wireless protocol states. One embodiment relates to a method including, at a user equipment ('UE'), establishing a connection to a first wireless network in accordance with a first wireless communication protocol, wherein the first wireless communication protocol is used for voice communications and data communications between the UE and the first wireless network, receiving a user request to disable the voice communications with the first wireless network, registering for voice communications with a second wireless network in accordance with a second wireless communication protocol, and maintaining the connection to the first wireless network to continue data communications between the UE and the first wireless network, wherein the UE simultaneously operates in the first wireless communication protocol and the second wireless communication protocol.

Systems and methods for improved transitions continuity between wireless protocols

A user equipment (UE), base station and a corresponding method for receiving historical data from a diagnostic server, receiving location data of the UE, determining a probability of a failed handover during a call based on the historical data and the location data, comparing the probability of the failed handover to a threshold value and initiating a call handover to a wireless local area network when the probability of the failed handover exceeds the threshold value. Also, a UE, base station and corresponding method for determining if one or more UEs have an active voice over WiFi call or if the UEs are registered with a Internet protocol ('IP') multimedia subsystem ('IMS') over WiFi and biasing a cell reselection procedure of the UE to select a cell of a packet switched network such as LTE.

Apparatus, systems and methods for an enhanced handover mechanism and cell re-selection

In order to facilitate communication in a wireless network, an accessibility issue in the wireless network may be detected. For example, if an electronic device is near the boundary between two adjacent cells in the cellular-telephone network, the signal power of signals from a current cell or connection may decrease. Concurrently, the maximum transmit power of the electronic device may be constrained by a thermal limit of the electronic device. When this occurs, the connection may be lost unless remedial action is taken. Therefore, in response to this condition, the electronic device may temporarily increase the maximum transmit power to allow the electronic device to communicate with the cellular-telephone network so that the connection may be transitioned to another cell or connection. In this way, the communication technique may restore the communication performance and avoid a dropped call, which will improve the user experience and customer satisfaction.

Communication during thermal mitigation

Automatic caller switching in a cellular voice call. A first voice call may be initiated between a first wireless user equipment (UE) device and a second UE via a cellular network. An indication may be received to switch calling parties for the first voice call. A second voice call may be established between the first UE and the second UE via the cellular network in response to the indication to switch calling parties for the first voice call. The calling and called parties may be reversed (switched) for the second voice call relative to the first voice call. The first voice call may be disconnected.

Caller switching during an active voice call

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San Jose, CA, United States of America

Kwangho Byun