Telefonaktiebolaget Lm Ericsson (publ)

Francisco Rafael Marques Lima

Francisco Rodrigo Porto Cavalcanti

Tarcísío Ferreira Maciel

Walter Cruz Freitas, Jr

Emanuel Bezerra Rodrigues

Walter Da Cruz Freitas, Jr

Ricardo Brauner Dos Santos

Walter Da Cruz Freitas Junior

Francisco Porto Cavalcanti

Tarcísio Ferreira Maciel

Nibia Sousa Bezerra

Walter Cruz Freitas Junior

Tarcísío Maciel

Emanuel B Rodrigues

Nibia Souza Bezerra

A low-complexity Radio Resource Allocation method () efficiently assigns frequency resources, such as a set of contiguous subcarriers, to Mobile Terminals in SC-FDMA uplink systems. The inventive method initially finds the resource allocation that leads to maximum efficiency in terms of transmitted data rate, without considering any resource adjacency constraint. Subsequently, the method iteratively redefines the resource allocation in order to find a resource allocation that is in accordance with resource allocation adjacency required by the SC-FDMA multiple access scheme.

Method and apparatus for resource allocation to maximize the total data rate in SC-FDMA uplink

A low-complexity, efficient Radio Resource Allocation method performed by a base station of a wireless communication network allocates a first plurality of frequency resources among a second plurality of requesting mobile terminals. Each mobile terminal employs a service such that two or more services are represented in the second plurality. The RRA method satisfies all of an exclusivity constraint that each frequency resource is allocated to only one mobile terminal, an adjacency constraint that all frequency resources allocated to any given mobile terminal are contiguous in a frequency domain, and a minimum service requirement constraint that a predetermined number of the mobile terminals employing each service be granted a required data rate. The RRA method comprises two phases: Unconstrained Maximization and Reallocation. In the Unconstrained Maximization phase, frequency resources are iteratively allocated to mobile terminals in an opportunistic way, obeying the exclusivity and adjacency constraints but without concern for the minimum service requirement constraint; the resulting allocation is tested for fulfillment of the minimum service requirement constraint; and one or more mobile terminals are removed from the allocation based on the minimum service requirement constraint test. In the Reallocation phase, frequency resources from one or more mobile terminals that have their required data rate fulfilled are reallocated to one or more mobile terminals that do not have their required data rate fulfilled.

Method and apparatus for resource allocation satisfying multiple performance constraints

Radio resource allocation techniques for MIMO systems are disclosed, wherein SDMA groups that should be multiplexed on each frequency chunk in order to maximize the total downlink data rate are selected, while guaranteeing that a specified minimum number of flows from each service have their instantaneous QoS demands fulfilled. The disclosed techniques include an unconstrained maximization procedure, in which resources are initially allocated to data flows for each of several data services, followed by a reallocation procedure in which resources are reallocated to satisfy minimum satisfaction constraints for each data service.

Resource allocation for minimum satisfaction guarantees in multi-service and multi-antenna networks

A method for resource allocation in a wireless communication system, having a set of connected terminals, comprises allocating of transmission resources and assigning of transmission resources. The allocating in turn comprises estimating of a requirement value representing an amount of required transmission resources for satisfying a minimum quality of service during a next transmission time interval for respective connected terminal. An allocation subset is generated by including unsatisfied connected terminals so that the sum of the requirement values of the included connected terminals of the allocation subset equals available transmission resources. The generation of the allocation subset is performed by including connected terminals in an order according to the respective requirement values, starting with the lowest requirement value. The assigning of transmission resources is thereafter performed by assigning transmission resources of the next transmission time interval to connected terminals of the allocation subset.

Method and arrangement for resource allocation

Growing community of inventors

Fortaleza, Brazil

Francisco Rafael Marques Lima