Rohde & Schwarz and Huawei demo super fast 4G at 1.2Gbit/s
- 著者:Ella Cai
- 公開：:2017-09-18
Rohde & Schwarz and Huawei Technologies have demonstrated a 4G mobile phone downlink of 1.2Gbit/s using the LTE-A-Pro specification.
This is thought to be pone of the fastest data downlinks speeds for 4G mobile phone downlink yet demonstrated.
Peak 1.2Gbit/s download speeds were achieved by using a combination of up to three downlink FDD carriers on which carriers can be received separately on four transmission layers (4×4 MIMO, or multiple in, multiple out) and 256QAM data modulation.
The demonstration ‘handset’ ran using a Huawei Kirin 970 smartphone SoC.
What would this level of download speed be used for? Well, the Huawei chip has built-in AI acceleration, which will support features such as image recognition, voice interactions and intelligent camera applications.
Ai Wei, Fellow at Huawei, writes:
“As mobile Internet is driving the growth of the industry, operators worldwide are all utilising their spectrum resources to provide the best user experience possible. The Kirin 970 can support 4×4 MIMO, 5CC CA, 256QAM and other advanced technologies, taking consumers to the stunning Gbps level of high-speed wireless networks.”
3GPP 4×4 MIMO mandates four receive antennas on the device side, so four RF connections are needed.
The receive antenna data paths were provided by the 4×4 MIMO functionality of the R&S CMW500 wideband radio communication tester.
Anton Messmer, mobile radio test business v-p at Rohde & Schwarz, writes:
“For testing LTE in unlicensed spectrum configurations, the downlink carriers can be set up in the 5GHz unlicensed spectrum.”
This is thought to be pone of the fastest data downlinks speeds for 4G mobile phone downlink yet demonstrated.
Peak 1.2Gbit/s download speeds were achieved by using a combination of up to three downlink FDD carriers on which carriers can be received separately on four transmission layers (4×4 MIMO, or multiple in, multiple out) and 256QAM data modulation.
The demonstration ‘handset’ ran using a Huawei Kirin 970 smartphone SoC.
What would this level of download speed be used for? Well, the Huawei chip has built-in AI acceleration, which will support features such as image recognition, voice interactions and intelligent camera applications.
Ai Wei, Fellow at Huawei, writes:
“As mobile Internet is driving the growth of the industry, operators worldwide are all utilising their spectrum resources to provide the best user experience possible. The Kirin 970 can support 4×4 MIMO, 5CC CA, 256QAM and other advanced technologies, taking consumers to the stunning Gbps level of high-speed wireless networks.”
3GPP 4×4 MIMO mandates four receive antennas on the device side, so four RF connections are needed.
The receive antenna data paths were provided by the 4×4 MIMO functionality of the R&S CMW500 wideband radio communication tester.
Anton Messmer, mobile radio test business v-p at Rohde & Schwarz, writes:
“For testing LTE in unlicensed spectrum configurations, the downlink carriers can be set up in the 5GHz unlicensed spectrum.”
