WINNER MAC for Cellular Transmission.

Mikael Sternad , Uppsala University,
Tommy Svensson , Chalmers U. of Technology and
Göran Klang , Ericsson AB.

IST Mobile Summit 2006, Mykonos, Greece, June 2006.

Outline:

The European research project WINNER is a cooperation of 39 partners from industry, operators, and academia, which is partly funded by the European Union. It has the overall goal to develop a single radio interface covering the full range from isolated hot spots to wide area cellular scenarios by using different modes of a common technology. It targets increased data rates, low latency, and high system capacity based on adaptive transmission schemes, flexible spectrum usage, relaying, and advanced multi-antenna processing. The WINNER I project (2004-2005) evaluated technologies and combined them into a system concept. It forms the basis for the WINNER II project (2006-2007), which aims at the design and detailed assessment of a beyond 3G system proposal.

The WINNER radio interface design is aimed at attaining both high flexibility in terms of spectrum use and fulfillment of user requirements and a high spectral efficiency in different deployment and usage scenarios; two goals that are often contradictory and difficult to combine.

The medium access control (MAC) system layer plays an important role for fulfilling these goals. It performs tasks that in existing systems are associated with Logical Link Control, Medium Access Control and Radio Resource Control protocol (sub)layers. The present paper focuses on the resource allocation problems that are to be solved and outlines the time-frequency-spatial resource units and control function blocks designed to solve them. Detailed protocol aspects of the MAC system layer are not discussed here, and are at present being developed within WINNER II.

Abstract:

This paper summarizes recent work towards an advanced cellular packet data system using a multicarrier-based beyond 3G air interface, developed within the European IST research project WINNER I.

The resulting air interface concept has a medium access control (MAC) system layer that performs resource allocation and packet scheduling within relay-enhanced cells. It also performs flexible allocation of antenna resources on a per-flow basis and provides support for flexible spectrum use.

The present paper focuses on the resource allocation problems and outlines the time-frequency-spatial resource units and control function blocks designed to solve them.

Related publications:

Later WINNER II design (ICT Mobile Summit 2008).

Downlink control overhead in WINNER II design (VTC-Fall 2008).

Proc. of the IEEE (Dec. 2007) invited paper on adaptive transmission in beyond-3G wireless systems.

Spatial scheme adaptation framework for WINNER, described at VTC 2006-Spring.

IST Mobile Summit 2005 paper that describes adaptive TDMA/OFDMA downlink and uplink transmission.

Source:

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