IP Library › Granted Patent US 11,540,233
Granted Patent B2
US 11,540,233 · App. 16/635,046 · Granted Dec 27, 2022

User equipment and base station apparatus

Inventor: Kei Andou (Tokyo, JP)
Assignee: NTT DOCOMO, INC.
H04W52/30H04W16/28H04W52/28H04W52/365
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Quick Facts
Patent No.
US 11,540,233
App. No.
16/635,046
Granted
Dec 27, 2022
Kind
B2
Abstract

A terminal for communicating with a base station apparatus is disclosed, the terminal including a controller that sets maximum transmission power based on an Effective Isotropic Radiated Power (EIRP) of the terminal; and a transmitter that transmits an uplink signal based on the maximum transmission power. In other aspects, a communication method by a terminal for communicating with a base station apparatus is also disclosed.

Claims (14)

1. A terminal for communicating with a base station apparatus, the terminal comprising:

a controller that sets maximum transmission power based on an Effective Isotropic Radiated Power (EIRP) of the terminal; and

a transmitter that transmits an uplink signal based on the maximum transmission power, wherein the controller obtains the EIRP from an EIRP in a peak direction of a transmission beam of the uplink signal, and

wherein the transmitter transmits information for reporting a power head room, using a Medium Access Control Control Element (MAC CE), including information on the maximum transmission power related to antenna gain in a direction in which the terminal is performing transmission.

2. The terminal according to claim 1 , wherein the uplink signal is precoded.

3. The terminal according to claim 2 , wherein the controller sets the EIRP according to a power class of the terminal.

4. The terminal according to claim 2 , wherein the EIRP is peak EIRP of the terminal.

5. The terminal according to claim 1 , wherein the controller sets the EIRP according to a power class of the terminal.

6. The terminal according to claim 1 , wherein the EIRP is peak EIRP of the terminal.

7. A communication method by a terminal for communicating with a base station apparatus, the communication method comprising:

setting maximum transmission power based on an Effective Isotropic Radiated Power (EIRP) of the terminal;

transmitting an uplink signal based on the maximum transmission power; and

transmitting information for reporting a power head room, using a Medium Access Control Control Element (MAC CE), including information on the maximum transmission power related to antenna gain in a direction in which the terminal is performing transmission,

wherein the EIRP is obtained from an EIRP in a peak direction of a transmission beam of the uplink signal.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2020
From: ANDOU, KEI
To: NTT DOCOMO, INC.
Reel/Frame 051736/0882 →
Priority Claims (1)
JP JP2017-151737 · Aug 4, 2017 · national
Continuity (1)
Related Publication 20200252887A1 · Aug 6, 2020