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Challenge

Both consumers and companies are looking to capture ultra high resolution videos (4K/8K) filmed from a variety of locations, ranging from city streets and parks to manufacturing plants and warehouses. In many cases, portable cameras are being used to film from different vantage points. The footage they capture needs to be transmitted to a server or computer where it can be processed and edited or analysed, but today’s wireless backhaul solutions generally lack sufficient uplink bandwidth.

Solution

In the second quarter of 2022, Huawei and China Mobile conducted a field test of uplink centric broadband communication (UCBC) technology in a prototype 5G-Advanced network in Hangzhou city, Zhejiang Province, China. Huawei says 5G-Advanced UCBC utilises multi-carrier aggregation, all-uplink mode and extremely large aperture array massive MIMO to improve efficiency tenfold and support speeds of more than 1 Gbps in the uplink. That means the video footage doesn’t need to be heavily compressed, enabling more raw data to be used in post-production or image analysis.

Impact & Statistics

Employing 50 MHz SUL (supplementary uplink) and 100 MHz TDD spectrum, the field tests achieved an uplink cell throughput of over 3 Gbps, which Huawei believes is an industry-first. The field test also demonstrated an uplink peak rate of over 1 Gbps for a single user. Huawei estimates there will be demand for 1 Gbps to 1.5 Gbps uplink capacity per 1,000 square meters in indoor industrial scenarios.

Wider Implications

UCBC technology could enable the film and television industries to easily upload high-definition video materials that meet post-processing requirements. That could remove the need for the expensive and cumbersome outside broadcast vans and wiring used for data transmission today. With UCBC, one person with one backpack could handle a live broadcast. Consumers could also use 5G-Advanced UCBC to live broadcast videos in real-time. In the manufacturing sector, the step change in uplink capacity could support video surveillance and machine vision applications that require ultra high resolution footage. For example, machine vision for intelligent quality inspection typically depends on video images with a resolution of 4K. 5G-Advanced UCBC could also support new innovative applications, such as automatic patrol vehicles and cloud robots.

Stakeholders

Huawei, CMCC (China Mobile Communications Group Co., Ltd.)


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5G-Advanced Could Turbocharge Video Uploads

Field test of UCBC technology achieves uplink of more than 1 Gbps for a single user

Video has become a very popular medium for communication and
storytelling. Both consumers and companies are increasingly looking to
capture ultra high resolution videos (in 4K or 8K definition) filmed from a variety of locations, ranging from city streets and parks to manufacturing plants and warehouses.

In many cases, portable cameras are being used to film from different vantage points, while businesses are installing multiple cameras to support video surveillance and machine vision. The high resolution footage captured by large numbers of cameras needs to be transmitted to a server or computer where

it can be processed and edited or analysed, but today’s wireless backhaul solutions generally lack sufficient uplink bandwidth. Huawei estimates there will be demand for 1 Gbps to 1.5 Gbps uplink capacity per 1,000 square meters in indoor industrial scenarios, for example.

In the second quarter of 2022, Huawei and China Mobile conducted a field test of uplink centric broadband communication (UCBC) technology in a prototype 5G-Advanced network in Hangzhou city, Zhejiang Province, China. Huawei says 5G-Advanced UCBC utilises multi-carrier aggregation, all-uplink mode and extremely large aperture array massive MIMO to improve efficiency tenfold and support speeds of more than 1 Gbps in the uplink (see diagram). That means the video footage doesn’t need to be heavily compressed, enabling more raw data to be used in post-production or image analysis.

“This technology can break the TDD performance ceiling,” says Deng Wei, Deputy Director of Wireless and Terminal Technology Research Institute of China Mobile Research Institute. “It can flexibly adjust the uplink and downlink bandwidths to effectively meet the requirements of large uplink or downlink rates, providing a broad space for more industry application innovation.”

“Recently, China Mobile has used the dual-carrier UDD technology to test 50 MHz SUL and 100 MHz TDD,” he adds. “For the first time in the industry, the uplink cell throughput exceeds 3 Gbps and the uplink peak rate of a single user exceeds 1 Gbps (see chart), improving the uplink rate by 10 times.”

“The technical challenges included multiband convergence for ultra-high uplink, i.e. how to implement flexible spectrum access of multiple bands,” explains John Gao, President of 5.5G Domain, Huawei. “It involves the design of a transmission time interval-level carrier selection scheme and the suitable frequency combination selection. At the same time, the terminal needs to support 3GPP Release-18 protocol.”

For the first time in the industry, the uplink cell throughput exceeds 3 Gbps and the uplink peak rate of a single user exceeds 1 Gbps (see chart), improving the uplink rate by 10 times

John Gao

President of 5.5G Domain, Huawei


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Making video capture more flexible and cost-effective

As 5G-Advanced networks are deployed, UCBC technology could ultimately be used by multiple industries to capture high-resolution video. It could, for example, enable the film and television industries to easily upload high-definition video materials that meet post-processing require- ments. That could remove the need for the expensive and cumbersome outside broadcast vans and wiring used for video transmission today. The UCBC solution could be particularly valuable in complex filming environments, such as narrow or crowded streets. In such situations, it can be very difficult to install traditional outside broadcast equipment.

With a UCBC solution, one
person with one backpack could potentially handle a live broadcast, further opening up video production to amateurs,
as well as professional film and
TV crews. A 5G-Advanced network could potentially provide enough bandwidth to support live streaming of 360 degree images. “The HD video content could be directly uploaded to the cloud server, where cloud rendering can be used to produce the media, improving quality and allowing for faster and broader distribution,” says John Gao.

As well as supporting live entertainment and information services, the technology could be used for live broadcasts to sell goods or conduct auctions.

In the manufacturing sector, the step change in uplink capacity could support video surveillance and machine vision applications

that require ultra high resolution footage. For example, machine vision for intelligent quality inspection typically depends on video images with a resolution of 4K.

Huawei intends to also explore how UCBC could be used to support automated vehicles and robots. These machines could use HD cameras to monitor environments that are dangerous or impractical for human

beings. For example, in coal mines, a UCBC solution could
be used to capture images from multiple remotely-controlled 4K cameras without the need to deploy employees or long cables (see images).

The large uplink capacity provided by UCBC could also
be used to support so-called massive IoT deployments, where large numbers of devices are uploading data simultaneously.

“Next, we will continue to promote the verification of more key technologies and systems to

achieve in-depth integration of the innovation chain and industry chain,” says Deng Wei.

Huawei and China Mobile plan
to run further field tests as a precursor to the deployment of 5G-Advanced networks. “Pre-commercial showcase projects will be implemented to verify the UCBC performance in practical scenarios, including live broadcasting in large international sports games, massive broadband internet of things, cloud robots, surface defect detection using

HD cameras, and so on,” says John Gao.

The HD video content could be directly uploaded to the cloud server, where cloud rendering can be used to produce the media, improving quality and allowing for faster and broader distribution

John Gao

President of 5.5G Domain, Huawei


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