Fredrik Tillman

A 9-band WCDMA/EDGE transceiver supporting HSPA evolution

The future of cellular radio ICs lies in the integration of an ever-increasing number of bands and channel bandwidths. Figure 21.2.1 shows the block diagram of our transceiver, together with the associated discrete front-end components. The transceiver supports 4 EDGE bands and 9 WCDMA bands (I-VI and VIII-X), while the radio can be configured to simultaneously support the 4 EDGE bands and up to 5 WCDMA bands: 3 high bands (HB) and 2 low bands (LB). The RX is a SAW-less homodyne composed of a main RX and a diversity RX. To reduce package complexity with so many bands, we chose to minimize the number of ports by using single-ended RF interfaces for both RX and TX. This saves several package pins, but requires careful attention to grounding. The main RX has 8 LNA ports and the diversity RX has 5, with some LNAs supporting multiple bands. On the TX side, 2 ports are used for all EDGE bands and 4 for the WCDMA bands.

Flex5Gware: Flexible and efficient hardware and software platforms for 5G network elements and devices

This paper presents the Flex5Gware project, whose goal is to deliver highly reconfigurable hardware HW platforms and HW-agnostic software SW platforms for 5G network elements and terminal devices. Flex5Gware will enable 5G HW/SW platforms to meet the requirements imposed by the growth in mobile traffic and the diversity of applications by increasing their capacity, reducing their energy footprint and enhancing their scalability and modularity. To put in place this vision in this early stage of 5G PPP research, Flex5Gware is designing and prototyping key building blocks of 5G HW/SW platforms. In particular, the developed technologies will be evaluated and demonstrated with proofs-of-concept by the end of the project. Copyright