Nokia Solutions and Networks Oy

Nokia Siemens Networks Oy

Google Inc.

Motorola Mobility LLC

Balamurali N Natarajan

Suresh Kalyanasundaram

Naveen Arulselvan

Rajeev Agrawal

Manjari Chhawchharia

Anand Bedekar

Vinod Kumar Ramachandran

Xiaoyi Wang

Hans Juergen Kroener

Rangsan Leelahakriengkrai

Jani Matti Johannes Moilanen

Joseph Olk Lester

Richa Gupta

Hua Xu

Vihang Gangaram Kamble

Vihang G Gangaram Kamble

Joseph Lester

Vihang Gangaram G Kamble

The present invention addresses method, apparatus and computer program product for dynamic cell clustering for Coordinated Multipoint operation. Clustering metric information defining relevant metrics for making cell clustering decision for Coordinated Multipoint operation are received from a network element serving a neighboring cell, and based on the received clustering metric information, it is decided whether to include the neighboring cell to a cluster for Coordinated Multipoint operation.

Dynamic cell clustering for coordinated multipoint operation

Apparatuses, methods, computer programs, computer program products and computer-readable media regarding connection establishment robustness optimization are disclosed. Some example versions include calculating, at a base station, a switching metric for a user equipment served by the base station, the switching metric indicating whether the user equipment is to switch from a source cell to one of multiple target cells. The switching metric is calculated for a combination of the user equipment with a source cell and one of the multiple target cells. The base station determines whether to switch the user equipment from the source cell to one of the multiple target cells based on the switching metric, which includes spectral efficiencies of the user equipment for both the source cell and one of the multiple target cells, current cell load values for both the source cell and one of the multiple target cells and a correction factor.

Interference and load aware dynamic point selection

In a communication system () where a wireless relay node (RN) () relays data packets between a Node B () and a user equipment (UE) (), the RN receives () a data packet from the Node B via a first wireless link (), conveys () the received data packet to the UE via a second wireless link (), determines () whether the UE is likely to handoff, and in response to determining that the UE is likely to handoff, delays conveying () an acknowledgment of the data packet to the Node B until an acknowledgment has been received from the UE. In another embodiment, the RN may use a status report () to inform the Node B of data packets that have not been transmitted to the UE or that have been transmitted to the UE but for which an acknowledgement has not been received from the UE.

Method and apparatus for communicating delivery of data packets to a user equipment in a wireless communication system

Systems and techniques for discontinuous reception management for user devices communicating using carrier aggregation. Information relating to discontinuous reception for a user device is received and used to determine discontinuous reception states of the user device. The information relating to discontinuous reception may include, for example, past scheduling information, information received at one scheduler and reporting scheduling information for another scheduler, or discontinuous reception information managed at a media access control layer of a base station. The discontinuous reception information may be used for scheduling of a plurality of carriers used for carrier aggregation by a user device, with scheduling for each carrier being performed by a scheduler dedicated to that carrier.

Methods and apparatus for communication scheduling

The present disclosure is directed to a method for reporting uplink buffer status of a relay station to a base station in a wireless network. The method includes monitoring an uplink buffer of the relay station communicating with the base station, where the uplink buffer comprises data to be transmitted from one or more user terminals to the base station. The method further includes sending an uplink buffer status report from the relay station to the base station, where the uplink buffer status report includes occupancy status information of the monitored uplink buffer and a number of user terminals having data queued up at the relay station to be transmitted to the base station.

Uplink buffer status reporting of relay stations in wireless networks

Method and apparatus for communicating deliver of data packets to a user equipment in a wireless communication system

Systems and techniques for scheduling of use of resources by wireless devices and allocation of resources among devices. Information is received relating to channel efficiency experienced by a user equipment and also to the channel efficiency experienced by other user equipments. The information may include channel gain. Scheduling and resource allocation are performed so as to provide service to each device while minimizing interference penalties imposed by devices on one another. Scheduling and resource allocation may be evaluated and conducted through a number of mechanisms, such as ranking users according to transmit power, ranking user equipments according to target signal to noise ratios, and evaluation of relative advantages to users with the evaluation being performed resource block by resource block. The various metrics take into account both advantages to a particular user equipment under consideration and detrimental effects on other user equipment.

Methods and apparatus for radio resource allocation

A method includes determining semi-persistent scheduling acknowledge/negative acknowledge (SPS AN) resources; configuring as a first metric for each SPS AN resource a number of user equipments (UEs) for which the SPS AN resource has been configured but is not activated; configuring as a second SPS AN resource a count of a number of sub-frames in which the SPS AN resource has been activated for a UE; configuring as a third metric for each SPS AN resource a number of UEs for which the resource is configured but some other SPS AN resource is allocated; forming a fourth metric using the first, second and third metrics; selecting N SPS AN resources from the SPS AN resources based at least on the fourth metric; and selecting one of the N SPS AN resources based at least on the fourth metric when the UE is activated for SPS operation.

Uplink control channel resource allocation for semi-persistent scheduling of user equipment

Apparatus, methods, and program products are presented that perform the following: allocating a set of sounding reference signal resources in a sounding reference signal resource space to a plurality of user equipment using a portioning scheme, and signaling indications of the allocated set of sounding reference signal resources to the plurality of user equipment. The portioning scheme may be a load balancing, complete partitioning, or hybrid scheme. The selection of a portioning scheme may be based on load.

Growing community of inventors

Bengaluru, India

Balamurali N Natarajan