Qualcomm, Samsung execute 2x uplink, 4x downlink carrier aggregation for FDD spectrum

Sunil Patil of Qualcomm Technologies

Qualcomm Technologies, Inc., in collaboration with Samsung Electronics Co., Ltd., announced that the companies have executed the simultaneous 5G 2x uplink and 4x downlink carrier aggregation (CA) for FDD (frequency division duplex) spectrum. This achievement underscores the companies’ joint management in paving way for future of 5G performance and flexibility.

The test was completed using a mobile phone form-factor test device powered by Snapdragon X75 5G modem-RF (radio frequency) system and Samsung’s 5G dual-band and tri-band radios supporting advanced carrier aggregation technology. The demand for increased uplink capacity has grown due to more consumers using increasingly higher uplink-heavy applications such as video uploads, video conferencing, social media sharing and cloud applications

This achievement increases flexibility for operators with fragmented FDD spectrum assets, bringing faster upload speeds to more consumers across a multitude of markets and networks. Previously, uplink CA has been accomplished with combining FDD+TDD (time division duplex) or TDD+TDD configurations. This accomplishment is the recent achievement to deliver on the promise of Snapdragon X75 to bring faster 5G to more users around the world.

“Our sixth generation modem-to-antenna solution was designed to future-ready 5G launches globally and bring numerous world’s first connectivity features to support the wide range of consumer and enterprise use cases,” says Sunil Patil, vice president, product management, Qualcomm Technologies, Inc. “We are pleased to further solidify our collaboration with Samsung to continue to set the pace for innovation and enable new experiences for users.”

“This achievement represents Samsung and Qualcomm Technologies’ ongoing efforts in pushing the boundaries of what is possible with mobile technology,” says Ji-Yun Seol, vice president, head of product strategy, networks business at Samsung Electronics. “Samsung has been leading the way in unleashing the full power of 5G technology to meet increasing customer demands. We will continue to advance network capabilities at the highest level.”

Snapdragon X75 is currently sampling to customers, with commercial devices expected to launch in the second half of 2023.

For more technical details and information, please see this blog post and visit the Snapdragon X75 webpage.

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