Title:
METHOD AND APPARATUS FOR TRANSMITTING PILOT SEQUENCE
Document Type and Number:
WIPO Patent Application WO/2017/000233
Kind Code:
A1
Abstract:
Disclosed are a method and apparatus for transmitting a pilot sequence. A first pilot number is determined by means of a terminal device, a first pilot sequence and a second pilot sequence are determined according to the first pilot number, the first pilot sequence and the second pilot sequence are respectively mapped to a first OFDM symbol and a second OFDM symbol of grant-free transmission resources, and the first pilot sequence and the second pilot sequence are sent by means of the first OFDM symbol and the second OFDM symbol, so that a network device can determine the activity of the terminal device by detecting the first pilot sequence, and in this way, it is required to only detect the second pilot sequence corresponding to the first pilot sequence, and it is not required to detect all possible second pilot sequences, and accordingly the number of pilots to be detected can be remarkably reduced and the complexity of the pilot detection can be reduced.
Inventors:
WU YIQUN (CN)
CHEN YAN (CN)
XU XIUQIANG (CN)
CHEN YAN (CN)
XU XIUQIANG (CN)
Application Number:
PCT/CN2015/082851
Publication Date:
January 05, 2017
Filing Date:
June 30, 2015
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L27/26
Domestic Patent References:
| WO2012092066A1 | 2012-07-05 |
Foreign References:
| CN1719817A | 2006-01-11 | |||
| CN101026432A | 2007-08-29 | |||
| CN104079519A | 2014-10-01 |
Other References:
See also references of EP 3297239A4
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
Download PDF: