The authors of the paper, at the top of the first page, seem to have been (sloppily) redacted.
In my (admittedly very limited) experience, I've never seen an academic paper whose authors have been redacted like this. So, they are:
Zhe Chen, Chuang Wang, Guanwen Li, Zhe Lou, Sheng Jiang
Huawei Technologies Co., Ltd.
{chenzhe17, wangchuang, liguanwen, zhe.lou, jiangsheng}@huawei.com
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Alex Galis
University College London
a.galis@ucl.ac.uk