Title:
METHOD AND APPARATUS FOR COVERAGE ENHANCEMENT FOR A RANDOM ACCESS PROCESS
Document Type and Number:
WIPO Patent Application WO/2015/005701
Kind Code:
A1
Abstract:
Methods and apparatus are provided for a User Equipment (UE) and a base station in communication with each other to determine parameters for a Random Access (RA) process. The base station informs the UE through a System Information Block (SIB) of a number of resource sets for RA preamble transmission by the UE. Each resource set is associated with a number of repetitions for a RA preamble transmission, with a maximum number of RA preamble transmissions, and with a number of repetitions the base station transmits a response to a RA preamble reception. The SIB also informs an association between a range of path-loss values and a number of RA preamble repetitions. The UE determines a number of repetitions for a first RA preamble transmission from its path-loss measurement.
Inventors:
LI YING (US)
PAPASAKELLARIOU ARIS (US)
NG BOON LOONG (US)
PAPASAKELLARIOU ARIS (US)
NG BOON LOONG (US)
Application Number:
PCT/KR2014/006209
Publication Date:
January 15, 2015
Filing Date:
July 10, 2014
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04W24/00; H04B7/26; H04W72/04
Domestic Patent References:
| WO2007052972A1 | 2007-05-10 | |||
| WO2012057531A2 | 2012-05-03 | |||
| WO2012044240A1 | 2012-04-05 |
Foreign References:
| KR20020078069A | 2002-10-18 | |||
| KR20060014012A | 2006-02-14 |
Other References:
See also references of EP 3020223A4
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (16 Daehak-ro 9-gilChongro-gu, Seoul 110-524, KR)
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