Huawei and China Mobile have verified multiple core TD-LTE-Advanced technologies including FDD/TDD Carrier Aggregation, MSA, 256QAM, inter-site CoMP, and MU-MIMO in a field test conducted at Chengdu Electronic Technology University. 

According to Huawei this field test is a very important platform for the validation, evolution, and innovation of new TD-LTE Advanced technologies. 

This test has enabled China Mobile and Huawei to validate the CA peak throughput by considering a scenario where LTE TDD is the primary cell and LTE FDD is the secondary cell. The air interface test results reached the theoretical peak data rate corresponding to a used network configuration of 250Mbps.

LTE Multi-Stream Aggregation (MSA), another key technology of 3GPP R12 standards, between TD-LTE and LTE FDD sites were both tested, with the results showing flexible handover or traffic concurrency for users, based on network coverage, load and interference.

Huawei further adds that as part of the field test, China Mobile and Huawei validated MU-MIMO with four data streams based on an 8-antenna network, which resulted in a peak data rate improvement of 100%. The test result for inter-site CoMP on a PTN-based network also showed a 30% increase in throughput for cell edge users. Huawei also accomplished a TD-LTE indoor and outdoor test with 256QAM. Compared to 64QAM, 256QAM enables a 33% peak data rate gain, and a cell average performance improvement of more than 20% in an indoor test environment.