JP6418510B2

5G,4G

Title

COMMUNICATION DEVICE COMMUNICATION METHOD AND INTEGRATED CIRCUIT

Application Number:

JP20170114668

Publication Date:

07-11-2018

Current Assignee:

Family ID:

Application Date:

09-06-2017

Declaring Company:

Publication Country:

US

Priority Date:

23-04-2009

Title

COMMUNICATION DEVICE COMMUNICATION METHOD AND INTEGRATED CIRCUIT

Application Number:

JP20170114668

Family ID:

Publication Country:

US

Publication Date:

07-11-2018

Application Date:

09-06-2017

Priority Date:

23-04-2009

Current Assignee:

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To provide a method for distributing transmission power available for transmitting a random access channel (PRACH).

SOLUTION: A communication device includes: a determination unit that determines first PRACH transmission power on a first component carrier CC1 and second PRACH transmission power on a second component carrier CC2; an adjustment unit for adjusting the second PRACH transmission power so that total transmission power after adjustment does not exceed a transmission power value PMAX if first PRACH transmission in a first sub-frame and second PRACH transmission in a second sub-frame different from the first sub-frame overlap in a time domain and total transmission power of both first PRACH transmission and second PRACH transmission exceeds the transmission power value PMAX set to the communication device; and a transmission unit that transmits a first random access preamble and a second random access preamble by using the power after adjustment.

SELECTED DRAWING: Figure 13

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.