# US 12,120,619 B2 · Terminal and communication method

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- Number: US 12,120,619 B2
- Document ID: US12120619B2
- Status: Granted
- Kind: B2
- Application number: 17/634,867
- Filed: 2019-08-15
- Published: 2022-10-13
- Granted: 2024-10-15
- Earliest claimed: 2019-08-15
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Yuta Oguma; Hiromasa Umeda; Hisashi Matsuoka
- Web page: https://patentgrep.com/patent/US12120619B2

## CPC

- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- H04B 17/102: {Power radiated at antenna}
- H04W 8/24: Transfer of terminal data
- H04W 52/265: {taking into account the quality of service QoS}
- H04W 52/42: in systems with time, space, frequency or polarisation diversity
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A terminal includes: a control section that generates Capability information including UE Capability for a Power Class; and a transmission section that transmits the Capability information. The Power Class is specified by four items of Max Total Radiated Power (TRP), Max peak Equivalent Isotropic Radiated Power (EIRP), Min peak EIRP, and Spherical coverage EIRP, and an Inter-band-Carrier-Aggregation (CA) specified value of at least one of the Max peak EIRP and the Min peak EIRP for Inter-band CA in which a plurality of bands are used is defined by a method different from a method for a non-Inter-band-CA specified value.

## Claims

### Claim 1

A terminal comprising:
a control section that generates Capability information including a Power Class of a terminal; and
a transmission section that transmits the Capability information,
wherein a spherical coverage EIS is specified for each of a plurality of the Power Classes,
wherein, in at least one of the plurality of Power Classes, a specified value of the spherical coverage EIS is determined by a method different between Inter-band Carrier Aggregation (CA) using a plurality of bands and a case other than the Inter-band CA, and
wherein the specified value of the spherical coverage EIS for a first band and the specified value of the spherical coverage EIS for a second band in the Inter-band CA are determined independently of each other in a same beam direction in two of the first and the second bands.

### Claim 2 (depends on 1)

The terminal according to claim 1, wherein a Peak Effective Isotropic Sensitivity (EIS) is specified for each of a plurality of the Power Classes, and,
in at least one of the plurality of Power Classes, a specified value of the Peak EIS is determined by a method different between the Inter-band CA and a case other than the Inter-band CA,
wherein the specified value of the Peak EIS for the first band and the specified value of the Peak EIS for the second band in the Inter-band CA are determined independently of each other.

### Claim 3

A system, comprising:
a terminal that generates Capability information including a Power Class of the terminal, and transmits the Capability information; and
a base station that receives the Capability information,
wherein a spherical coverage Effective Isotropic Sensitivity (EIS) is specified for each of a plurality of the Power Classes,
wherein, in at least one of the plurality of Power Classes, a specified value of the spherical coverage EIS is determined by a method different between Inter-band Carrier Aggregation (CA) using a plurality of bands and a case other than the Inter-band CA, and
wherein the specified value of the spherical coverage EIS for a first band and the specified value of the spherical coverage EIS for a second band in the Inter-band CA are determined independently of each other in a same beam direction in two of the first and the second bands.

### Claim 4

A communication method performed by a terminal, comprising:
generating Capability information including a Power Class; and
transmitting the Capability information,
wherein a spherical coverage Effective Isotropic Sensitivity (EIS) is specified for each of a plurality of the Power Classes,
wherein, in at least one of the plurality of Power Classes, a specified value of the spherical coverage EIS is determined by a method different between Inter-band Carrier Aggregation (CA) using a plurality of bands and a case other than the Inter-band CA, and
wherein the specified value of the spherical coverage EIS for a first band and the specified value of the spherical coverage EIS for a second band in the Inter-band CA are determined independently of each other in a same beam direction in two of the first and the second bands.