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Title:
WIRELESS COMMUNICATION SYSTEM, TERMINAL DEVICE, BASE STATION DEVICE, WIRELESS COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2016/159373
Kind Code:
A1
Abstract:
In this wireless communication system in which a base station device and a terminal device communicate, and the terminal device executes a random access procedure, the base station device notifies the terminal device of information indicating the number of repetitions for each level, and the relationship between the levels and random-access-preamble group information, and random access common setting information including the number of preamble transmission trials for each level. In cases when a first counter exceeds the number of transmission trials corresponding to the level, the MAC layer of the terminal device executes processing for raising the level.

Inventors:
KATO YASUYUKI
YAMADA SHOHEI
UEMURA KATSUNARI
TSUBOI HIDEKAZU
Application Number:
JP2016/060969
Publication Date:
October 06, 2016
Filing Date:
April 01, 2016
Export Citation:
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Assignee:
SHARP KK (?5908522, JP)
International Classes:
H04W74/08; H04W92/10
Domestic Patent References:
WO2010103895A12010-09-16
WO2014181646A12014-11-13
WO2008081531A12008-07-10
Foreign References:
US20150016312A12015-01-15
Other References:
SHARP: "PRACH coverage enhancement for Rel-13 MTC UEs", 3GPP TSG-RAN WG1#80 R1-150275, 18 February 2015 (2015-02-18), pages 1 - 5, XP050933485, Retrieved from the Internet
HUAWEI ET AL.: "WF on PRACH CE Procedure", 3GPP TSG-RAN WG1#80 R1-150877, 19 February 2015 (2015-02-19), pages 1 - 5, XP050934032, Retrieved from the Internet
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (?1006620, JP)
Nishizawa Kazu -- pure (?1006620, JP)
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