Malikie Innovations Limited

Blackberry Corporation

Takashi Suzuki

Stephen John McCann

Richard Charles Burbidge

David Philip Hole

Maiyuran Wijayanathan

Johanna Dwyer

Venkata Ratnakar Rao Rayavarapu

Andrew Mark Earnshaw

Eswar Kalyan Vutukuri

Chen Ho Chin

Mark Earnshaw

Rene Faurie

Yiping Wang

Dinesh Kumar Arora

Chen-ho Chin

René Faurie

Ayman Ahmed Mahmoud Abdel-Samad

Mohamed Galal El-Din Ebrahim

Youn Hyoung Heo

Zhijun Cal

Gordon Young

Sean Michael Mcbeath

Yi Yu

Richard Charles Burbridge

James Womack

Jun Li

Mo-Han Fong

Chen-Ho Chin

Claude Jean-Frederic Arzelier

Eswar Vutukuri

Gordon Peter Young

Stephen Mccann

James Earl Womack

Zhijun Cai

A method for allocating resources for device-to-device transmission between two or more user equipment (UEs) includes transmitting, from a first UE to a second UE, a resource allocation configuration for device-to-device communications. A resource request for a device-to-device transmission is received from the second UE. In response to the resource request, a resource for the device-to-device transmission is selected at the first UE. A resource grant is transmitted to the second UE. The resource grant identifies the selected resource. A device-to-device transmission is received from the second UE over the selected resource.

Allocating resources for a device-to-device transmission

In an access device associated with a first network cell, a method for enabling user equipment (UE) to obtain a service unavailable through the first network cell includes receiving a request for the UE to access the service, and identifying, in a message to the UE, a plurality of second network cells providing the service.

Method for accessing a service unavailable through a network cell

A method performed by user equipment (UE) includes receiving a request to access a service unavailable through a first network cell associated with the UE and informing a second network cell that the UE is requesting to obtain the service unavailable through the first network cell. The request may be received from a user of the UE or may be a paging message.

A method performed by user equipment (UE) includes receiving a request to access a service unavailable through a first network cell associated with the UE, and receiving a message from an access device associated with the first network cell, wherein the message identifies a plurality of second network cells providing the service.

A device, serving cell and method of switching between modes of operation for the device in a cellular network comprises receiving a service via a connection with the serving cell. A condition indicative of deterioration in network service and an absence of a suitable neighbor cell are detected. In response, discovery of relay nodes is initiated. When a suitable relay node is discovered, a mechanism to switch to receiving the service via the suitable relay node is initiated. The service may be a mission critical push-to-talk over Long Term Evolution service. The relay node may be user equipment acting as a user equipment-to-network relay node. When the device is in an RCC_CONNECTED state, the mechanism to switch includes sending a relay mode preference indication to the serving cell, receiving a connection release message from the serving cell, releasing the serving cell connection, and establishing a sidelink connection with the relay.

Switching between network based and relay based operation for mission critical voice call

Growing community of inventors

Toronto, Canada

Takashi Suzuki