Qualcomm Incorporated

Aravinth Rajendran

Parthasarathy Krishnamoorthy

Prashanth Hosabettu Mohan

Anand Rajurkar

KrishnaKumar Vasanthasenan

Janga Reddy Alimineti

Kuo-Chun Lee

Srinivasan Balasubramanian

Suresh Sanka

Nithin Thilak Nallasivam

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.

Method and apparatus for minimizing/avoiding conflicts between different radio access technologies serving user equipment

A method for improving device-to-device (D2D) communication in an LTE-Direct communication system includes exchanging communication information between a first user equipment (UE) and a second UE over an LTE-Direct connection with a first network resource of a first set of network resources allocated to the first and second UEs by a base station for the LTE-Direct connection. The method also includes determining, by the first UE, whether a first link quality of the LTE-Direct connection with the first network resource is below a link quality threshold. If so, the LTE-Direct connection is shifted to another network resource of the first set of network resources until an LTE-Direct connection is established that has a link quality that is equal to or greater than the link quality threshold.

Link-quality-based resource allocation in device-to-device communications

The disclosure generally relates to dynamic cell reselection to improve device-to-device (D2D) communications where two or more D2D peers are camped onto different cells and one or more D2D peers are located in an overlap region between the cells. For example, in various embodiments, the D2D peers may exchange one or more communication parameters over the (inter-cell) D2D connection and detect that the D2D peers are camped on different base stations (i.e., attached to different cells) based on the exchanged communication parameters. The D2D peer(s) located in the cell overlap region may then obtain measurements on the neighbor cell and a forced cell reselection may be triggered at the appropriate D2D peer(s) located in the cell overlap region such that the D2D peers are camped on the same base station, thereby converting the inter-cell D2D connection into an intra-cell D2D connection that can be more easily maintained.

Dynamic cell reselection to improve device-to-device communications

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.

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Hyderabad Telangana, India

Aravinth Rajendran