Blackberry Corporation

Samsung Electronics Co., Ltd.

Future Wei Technologies, Inc.

Research in Motion Corporation

Changhoi Koo

Zhijun Cai

Jun J Li

Jun Li

Youn Hyoung Heo

Joon Beom Kim

Rene Waraputra Purnadi

Baowei Ji

William Joseph Semper

Noun Choi

Yufei W Blankenship

Farooq Khan

Shiwei Gao

Yi Song

Sean Michael McBeath

Zhigang Rong

Joseph R Cleveland

Purva R Rajkotia

Yunsong Yang

Eran Pisek

Mohammed Nawaf Smadi

Joonbeom Kim

Göran Hageltorn

Cristian Lambiri

Michael Hubo-Kleiss

Yufei Wu Blankenship

A method for use in a first user equipment (UE) includes receiving, from a base station, control information and a resource assignment for uplink transmission; and transmitting, based on the control information, a discovery signal on the assigned resource for uplink transmission, the discovery signal including a first temporary UE identifier (ID) assigned to the first UE, wherein the first temporary UE ID is used to identify the first UE for device-to-device communication.

Methods and devices for performing proximity discovery

A first wireless access network node receives feedback information from a second wireless access network node that performs data offload for the first wireless access node, the feedback information identifying a user equipment (UE) and including information relating to a buffer condition of a data buffer in the second wireless access network node. In response to the feedback information, performing, by the first wireless access network node, control of the data offload that includes controlling an offload of at least one radio bearer of the UE identified by the feedback information.

Controlling data offload in response to feedback information

A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by allocating a non-interfering downlink signaling channel for downlink reception of interference avoidance instructions at the UE device. In operation, a user equipment device detects IDC interference and sends an IDC indication message to the radio network to get an appropriate solution, but instead of waiting at the current frequency to receive the IDC response from the radio network, the user equipment device moves to a non-interfering downlink signaling channel for downlink reception of interference avoidance instructions.

Enhanced in-device coexistence interference avoidance using predetermined downlink channel

A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by providing preferred frequency solutions for the in-device coexistence system.

Method and apparatus for avoiding in-device coexistence interference with preferred frequency notification

A method, network node, and user equipments for providing parameters to a first user equipment served by the network element, the parameters describing at least a second user equipment for the purpose of the first user equipment initiating a device to device proximity discovery service with the second user equipment, the method collecting information for user equipments desiring device to device proximity discovery; creating a candidate user equipment list for a candidate tier based on the collected information at the network element, wherein each candidate tier comprises one or more thresholds based on timing advance values in use at the first or the at least the second user equipment; and providing the parameters describing at least a second user equipment to the first user equipment.

Method and apparatus for proximity discovery for device-to-device communication

A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies deployed in adjacent bands on the same device by controlling and separating the LTE signaling and the non-LTE signaling using dedicated time intervals to separate LTE signaling from non-LTE signaling. In addition, coexistence mode handover procedures are provided which use threshold-based triggering events to avoid coexistence interference and to prevent ping-pong effects by establishing a 'keeping time' parameter so that a non-interfering network node does not switch back to an interfering network node after handoff. Coexistence interference is also avoided by providing a hybrid automatic repeat request (HARQ) mechanism which accounts for coexistence interference by providing a fixed or variable on-interval parameter and an activity parameter indicating whether non-LTE activity is present to maximize a time interval for non-LTE devices without interference from LTE activity on the same device.

Method and apparatus for avoiding in-device coexistence interference

A first wireless access network node receives feedback information from a second wireless access network node that performs data offload for the first wireless access node. The feedback information relates to one or more of a radio resource usage, a buffer condition, a hardware resource usage or a link quality. In response to the feedback information, the first wireless access network node performs control of the data offload.

Systems, methods, and apparatuses for initiating device-to-device (D2D) communication in wireless communication networks are provided. Based on received downlink or uplink signal qualities, a two-stage process, that is, a first stage of information request and a second stage of actual information transfer, may be used to initiate the D2D communication. Multiple thresholds, timers, and/or counters may be used in connection with the two-stage process. The two-stage process reduces unnecessary signaling overhead for initiating the D2D communication.

Systems and methods for initiating device-to-device communication in wireless networks

A temporary identifier is assigned to a discoverable user equipment (UE) in an assignment, an expiration value is assigned to the assignment, and the temporary identifier and the expiration value are associated to a long-term identifier of the discoverable UE. The temporary identifier and an indication of the expiration value are provided to the discoverable UE. The temporary identifier and an indication of the expiration value are provided to a discovering UE responsive to receipt of an inquiry including the long-term identifier of the discoverable UE The discoverable UE broadcasts the temporary identifier. If the broadcast is heard by the discovering UE, the discovering UE may identify that the broadcast is from the discoverable UE, based on the association of the long-term identifier to the temporary identifier.

Temporary identifiers and expiration values for discoverable user equipments (UEs)

A method, system and device are provided for avoiding in-device coexistence interference between different radio technologies by allocating random access channel preambles to include one or more dedicated access preambles to be sued for sending IDC interference indication messages over a random access channel (RACH) to a radio access network. In response, the radio network provides control parameters and/or instructions for avoiding interference in a random access response message corresponding to the IDC interference indication message using one or more fields in the MAC subheader and payload fields of a designated IDC MAC PDU message.

Access procedures for in-device coexistence interference avoidance

Random access channel procedures for in-device coexistence interference avoidance

A method is provided for reducing radio frequency interference between a first device and a second device co-located on a UE. The method comprises transmitting, by the UE, to a network element, responsive to the UE detecting IDC interference between the first device and the second device, an output power level of the first device, an amount of de-sense experienced by the second device, and information regarding a plurality of RBs on which the UE requests to perform an uplink transmission.

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Plano, TX, United States of America

Changhoi Koo