Blackberry Corporation

Research in Motion Corporation

Rose Qingyang Hu

Yi Yu

Zhijun Cai

Yi Song

Mo-Han Fong

Chandra Sekhar Bontu

James Earl Womack

Andrew Mark Earnshaw

Zhijun S Cai

Chandra Bontu

James Womack

Chandra S Bontu

Takashi Suzuki

Richard Charles Burbidge

Martin A Leugers

Tark Abed

Sam Zhijun Cai

James Jim Womack

Feng Hao Yu

Craig Lauchner

Zhijun Sam Cai

Yu Yi

Methods, devices and systems for a wireless communication system using multiple-serving nodes are provided. In one embodiment, a method of wireless communication comprises sending from a wireless device an uplink control signal to a first node via a second node using a second communication link; receiving by said wireless device a downlink control signal from said first node using a first communication link; sending from said wireless device another uplink control signal to said second node using said second communication link; and receiving by said wireless device another downlink control signal from said second node via said first node using said first communication link.

Wireless communication system using multiple-serving nodes

A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA.

System and method for modulation and coding scheme adaptation and power control in a relay network

A method and system for formulating an SINK metric for cells using only the existing RSRP and RSRQ measurements. With this method and system side information is exchanged between eNBs of an E-UTRAN using the X2 interface where the X2 interface carries the X2 Application Protocol (X2AP). The side information is introduced either within X2AP messages exchanged between eNB nodes or via modification of existing X2AP messages. Serving cell system information block (SIB) messages may also be modified or new SIB messages introduced to facilitate computation of an SNIR metric at a UE.

Procedure for formulating a signal to interference plus noise ratio

A method and system for formulating an SINR metric for cells using only the existing RSRP and RSRQ measurements. With this method and system side information is exchanged between eNBs of an E-UTRAN using the X2 interface where the X2 interface carries the X2 Application Protocol (X2AP). The side information is introduced either within X2AP messages exchanged between eNB nodes or via modification of existing X2AP messages. Serving cell system information block (SIB) messages may also be modified or new SIB messages introduced to facilitate computation of an SNIR metric at a UE.

UE measurement procedure in a heterogeneous mobile network

Supplemental node transmission assistance in a wireless network provides for transmissions between a wireless network and wireless user equipment in a first direction using a serving node of the wireless network while providing for transmissions between the wireless network and wireless user equipment in a second direction using a supplemental node of the wireless network. The supplemental node is selected based on providing better channel conditions between the network and the user equipment in the second direction than the serving node. The supplemental node thus provides transmission assistance for the serving node in order to provide the best available downlink and uplink communications between the user equipment and the network.

Supplemental node transmission assistance in a wireless network

A method and system for formulating an SINR metric for cells using only the existing RSRP and RSRQ measurements. With this method and system side information is exchanged between eNBs of an E-UTRAN using the X2 interface where the X2 interface carries the X2 Application Protocol (X2AP). The side information is introduced either within X2AP messages exchanged between NB nodes or via modification of existing X2AP messages. Serving cell system information block (SIB) messages may also be modified or new SIB messages introduced to facilitate computation of an SNIR metric at a UE.

A method for communicating using a wireless communication network is presented. The method may include receiving a channel quality indicator (CQI) from a first UE. The first UE is served by a base station. The CQI characterizes a channel quality between the first UE and the base station when the base station transmits at a high power. A first modulation and coding scheme (MCS) may be determined for when the base station transmits at a low power based on the received CQI. When the spectrum efficiency of the first MCS is equal to or higher than the spectrum efficiency of a pre-determined MCS, first UE may be communicated with using a low power transmission. In some cases, a physical downlink control channel (PDCCH) downlink control information (DCI) message is transmitted to the first UE to identify a power spectral density (PSD) level.

System and method for intra-cell frequency reuse in a relay network

A method, network node and UE device () for wireless access control and load balancing among various access nodes () in a radio access network that contains both base stations () and relay notes (). A wireless UE device () receives a message containing at least one of the respective loads for a group of access nodes and weighting factors for possible connections. The device determines a preferred access node () using at least one of the respective loads and weighting factors and attaches to the preferred access node.

System and method for mobile access control and load balancing in a relay network

A method for selecting an MCS for a cell in which one or more Type 2 relay nodes are present. The method includes the access node for the cell estimating the quality of the link between a relay node in the cell and a UA in the cell and using the estimate to select an MCS for the cell.

Downlink MCS selection in a type 2 relay network

In a system for allocating resources of a wireless communication system power levels of downlink (DL) communication channels and coupling losses of uplink (UL) communication channels are determined. When the power level of the DL communication channel between a base station and a UA is greater than the power levels of the DL communication channels between each of a plurality of RNs and the UA, and the coupling losses of the UL communication channel between at least one of the RNs and the UA are less than the coupling losses of the UL communication channel between the base station and the UA, a DL communication channel resource on the base station to the UA, and a UL communication channel resource on the at least one of the plurality of RNs to the UA are allocated.

System and method for association and uplink adaptation in a relay network

Supplemental node transmission assistance in a wireless communication network

An access node, comprising at least one component configured to support forwarding of data packets to a user agent connected to a relay node, wherein the relay node is a termination point for a first tunneling path from a core network, and wherein the relay node is connected to the access node and the access node is on the first tunneling path.

Mechanisms for data handling during a relay handover with S1 termination at relay

A method is provided for handing over a user equipment (UE). The method includes a donor access node with which the UE is in communication via a relay node receiving UE context information from the relay node. The method further includes the donor access node using the UE context information to identify data packets that belong to the UE.

Architecture for termination at access device

Systems, apparatuses, and methods may be directed to operating wireless communication resources for a wireless communications system that includes a relay node and a base station. A backhaul link data rate may be identified for a first wireless link between the relay node and the base station. An access link data rate may be identified for a second wireless link between the relay node and a user equipment (UE). The allocation of available resources between the backhaul link and the access link may be adjusted or changed to optimize the allocation of resources.

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Irving, TX, United States of America

Rose Qingyang Hu