Title:
COMMUNICATION DEVICE, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT
Document Type and Number:
Japanese Patent JP2019041391
Kind Code:
A
Abstract:
To provide a basic policy on how a mobile terminal distributes available transmission power under a situation where required transmission power for transmitting through a random access channel (PRACH) exceeds transmission power available for uplink transmission, and to provide a method for distributing the transmission power.SOLUTION: When first PRACH transmission in a first sub-frame on a first component carrier and second PRACH transmission in a second sub-frame on a second component carrier overlap in a time domain and when total transmission power of both of the first PRACH transmission and the second PRACH transmission exceeds a transmission power value Pset to a terminal device, in a portion where the first PRACH transmission in the first sub-frame and the second PRACH transmission in the second sub-frame overlap, transmission power for the second PRACH transmission in the second sub-frame is adjusted so that the total transmission power after adjustment does not exceed the P.SELECTED DRAWING: Figure 16
Inventors:
FIRESANGER MARTIN
LOEHR JOACHIM
AOYAMA TAKAHISA
LOEHR JOACHIM
AOYAMA TAKAHISA
Application Number:
JP2018182685A
Publication Date:
March 14, 2019
Filing Date:
September 27, 2018
Export Citation:
Assignee:
SUN PATENT TRUST
International Classes:
H04W52/34; H04J1/00; H04L27/26; H04W52/40; H04W52/50; H04W72/04
Domestic Patent References:
| JP2017201794A | 2017-11-09 | |||
| JP2007267152A | 2007-10-11 | |||
| JP2008278268A | 2008-11-13 | |||
| JP2012516607A | 2012-07-19 |
Other References:
HUAWEI: "Multiple Timing Advance Impact on RAN2[online]", 3GPP TSG-RAN WG2♯68BIS R2-100110, JPN6019038574, 18 January 2010 (2010-01-18), ISSN: 0004128368
ZTE: "Impact analysis of multiple TA[online]", 3GPP TSG-RAN WG2♯69 R2-101091, JPN6018034384, 22 February 2010 (2010-02-22), ISSN: 0004265552
ZTE: "Impact analysis of multiple TA[online]", 3GPP TSG-RAN WG2♯69 R2-101091, JPN6018034384, 22 February 2010 (2010-02-22), ISSN: 0004265552
Attorney, Agent or Firm:
Koichi Washida