China Mobile has demonstrated 220Mbps peak data transmission rates based on 3.5GHz interband TD-LTE-Advanced carrier aggregation, Nokia Networks has announced. According to the Finnish vendor, a live demo was conducted at the Mobile World Congress in Shanghai using its Flexi Multiradio 10 Base Station and a test device to run combined 3.5GHz and 2.6GHz TD-LTE frequency bands.
Huang Yuhong, Vice President of China Mobile Research Institute, was cited as saying of the use of the bands in question: ‘The mobile 4G market is developing very fast in China. On the one hand, millions of users are able to enjoy the convenience brought to them by mobile broadband; on the other hand, we feel the necessity to increase spectrum resources to meet the needs of fast growing data traffic. The 3.5GHz band is another important spectrum resource for 4G networks, which will be used in TD-LTE. This demo not only proves the commercial feasibility of the 3.5GHz TD-LTE band, but also shows 3.5GHz can be aggregated with current bands, enhancing 4G networks with more capacity.’
In separate but related news, China Mobile is said to have 190 million 4G connections in the 18 months since receiving its TD-LTE licence in December 2013, according to Mobile World Live, citing comments made by the operator’s executive VP Li Huidi. With the executive also noting that 4G users now account for 21% of the operator’s total mobile subscriber base, he added that the average revenue per user (ARPU) of 4G users was 3.8 times higher than non-data users.