Invention Grant
US09451639B2 Method and apparatus for coverage enhancement for a random access process
有权
用于随机访问过程的覆盖增强的方法和装置
- Patent Title: Method and apparatus for coverage enhancement for a random access process
- Patent Title (中): 用于随机访问过程的覆盖增强的方法和装置
-
Application No.: US14319711Application Date: 2014-06-30
-
Publication No.: US09451639B2Publication Date: 2016-09-20
- Inventor: Ying Li , Aris Papasakellariou , Boon Loong Ng
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Main IPC: H04W74/08
- IPC: H04W74/08 ; H04L5/14 ; H04W74/00

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.
Public/Granted literature
- US20150016312A1 METHOD AND APPARATUS FOR COVERAGE ENHANCEMENT FOR A RANDOM ACCESS PROCESS Public/Granted day:2015-01-15
Information query