Title:
COMMUNICATION METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/232696
Kind Code:
A1
Abstract:
Provided are a communication method and device. The method comprises: a terminal device determining a current coverage level from at least two coverage levels according to the received power of a reference signal, wherein each coverage level of the at least two coverage levels corresponds to a power ramping step; and the terminal device, according to a current power ramping step corresponding to the current coverage level, sending, to a network device and according to a power ramping mode, a preamble for random access. Therefore, in the embodiments of the present application, the preamble is sent by the terminal device in the current coverage level according to the power ramping mode, so that the impact on other terminal devices can be reduced.
Inventors:
WU GENGSHI (CN)
TIE XIAOLEI (CN)
LI JUN (CN)
MA CHAO (CN)
TIE XIAOLEI (CN)
LI JUN (CN)
MA CHAO (CN)
Application Number:
PCT/CN2017/089560
Publication Date:
December 27, 2018
Filing Date:
June 22, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W24/00; H04W74/08
Foreign References:
| CN105916172A | 2016-08-31 | |||
| CN104812084A | 2015-07-29 | |||
| CN105722105A | 2016-06-29 | |||
| US20140098761A1 | 2014-04-10 |
Other References:
INTERDIGITAL: "PRACH power ramping and power calculation", 3GPP TSG-RAN WG2 MEETING #93, no. R2-161652, 6 February 2016 (2016-02-06), St. Julian's, Malta, XP051065897
HUAWEI; HISILICON: "On transmit power and power ramping for PRACH in coverage enhancement", 3GPP TSG-RAN WG1 MEETING #81, no. R1-152456, 16 May 2015 (2015-05-16), Fukuoka, Japan, XP050970916
HUAWEI; HISILICON: "On transmit power and power ramping for PRACH in coverage enhancement", 3GPP TSG-RAN WG1 MEETING #81, no. R1-152456, 16 May 2015 (2015-05-16), Fukuoka, Japan, XP050970916
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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