# US 9,439,156 B2 · Mobile terminal and method of displaying image using the same

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- Number: US 9,439,156 B2
- Document ID: US9439156B2
- Status: Granted
- Kind: B2
- Application number: 14/231,908
- Filed: 2014-04-01
- Published: 2014-07-31
- Granted: 2016-09-06
- Earliest claimed: 2010-06-28
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Sang Soo Jeong; Soeng Hun Kim
- Web page: https://patentgrep.com/patent/US9439156B2

## CPC

- H04W 52/243: {taking into account interferences}
- H04L 5/0066: {Requirements on out-of-channel emissions}
- H04W 52/146: {Uplink power control}
- H04W 52/288: {taking into account the usage mode, e.g. hands-free, data transmission or telephone}
- H04W 52/325: {Power control of control or pilot channels}
- H04W 52/34: TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W 52/346: {distributing total power among users or channels}
- H04W 52/365: {Power headroom reporting}
- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- H04W 52/36: with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W 88/02: Terminal devices
- H04W 88/08: Access point devices
- 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)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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

An information format and apparatus used by a base station to make a scheduling decision when the base station allocates resource to a terminal in a mobile communication system are provided. Operations of a terminal to report a maximum transmission power accurately to the base station in a scheduling process are also provided. A method for calculating a maximum transmit power in a constant manner regardless of a channel status is also provided.

## Claims

### Claim 1

A method for reporting power headroom by a terminal in a mobile communication system, the method comprising:
receiving information indicating a first power headroom report (PHR) format;
determining whether a PHR is triggered; and
transmitting a maximum transmit power (PCMAX) and a power headroom (PH) associated with at least one activated carrier in the PHR using the first PHR format, the PH being obtained based on the PCMAX.

### Claim 2 (depends on 1)

The method of claim 1, wherein the PCMAX and the PH are determined for each serving cell if more than one serving cell is configured.

### Claim 3 (depends on 1)

The method of claim 1,
wherein the first PHR format comprises an extended PHR medium access control (MAC) control element (CE),
wherein the extended PHR MAC CE comprises at least one PH field and at least one PCMAX field associated with the at least one activated carrier, and
wherein at least one PCMAX field respectively corresponds to at least one PH field.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
if a simultaneous transmission a for a physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH) is configured, obtaining a value of a type 2 PH; and
transmitting the value of the type 2 PH and a PCMAX used for determining the value of the type 2 PH.

### Claim 5 (depends on 4)

The method of claim 4, wherein the value of the type 2 PH is determined based on a PCMAX of a first cell, a PUSCH transmit power and a PUCCH transmit power.

### Claim 6

A terminal for reporting power headroom (PH) in a mobile communication system, the terminal comprising:
a transceiver for transmitting and receiving a signal; and
a controller for controlling to
receive information indicating a first power headroom report (PHR) format,
determine whether PHR is triggered, and to
transmit a maximum transmit power (PCMAX) and a power headroom (PH) associated with at least one activated carrier in the PHR using the first PHR format, the PH being obtained based on the PCMAX.

### Claim 7 (depends on 6)

The terminal of claim 6, wherein the PCMAX and the PH are determined for each serving cell if more than one serving cell is configured.

### Claim 8 (depends on 6)

The terminal of claim 6,
wherein the first PHR format comprises an extended PHR medium access control (MAC) control element (CE),
wherein the extended PHR MAC CE comprises at least one PH field and at least one PCMAX field associated with the at least one activated carrier, and
wherein at least one PCMAX field respectively corresponds to at least one PH field.

### Claim 9 (depends on 6)

The terminal of claim 6, wherein the controller is further configured to:
obtain a value of a type 2 PH if a simultaneous transmission for a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) is configured, and
transmit the value of the type 2 PH and a PCMAX used for determining the value of the type 2 PH.

### Claim 10 (depends on 9)

The terminal of claim 9 wherein the value of the type 2 PH is determined based on a PCMAX of a first cell, a PUSCH transmit power and a PUCCH transmit power.

### Claim 11

A base station for receiving a power headroom report (PHR) in a mobile communication system, the base station comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to:
identify information indicating a first PHR format based on a number of activated uplink carriers for a terminal,
transmit a control message comprising the information, and
receive a maximum transmit power (PCMAX) and a power headroom (PH) associated with at least one activated uplink carrier for the terminal using the first PHR format, the PH being obtained based on the PCMAX.

### Claim 12 (depends on 11)

The base station of claim 11, wherein the PCMAX and the PH are determined for each serving cell if more than one serving cell is configured.

### Claim 13 (depends on 11)

The base station of claim 11,
wherein the first PHR format comprises an extended PHR medium access control (MAC) control element (CE),
wherein the extended PHR MAC CE comprises at least one PH field and at least one PCMAX field associated with the at least one activated uplink carrier, and
wherein at least one PCMAX field respectively corresponds to at least one PH field.

### Claim 14 (depends on 11)

The base station of claim 11, wherein the controller is further configured to control to receive a value of a type 2 PH and a PCMAX used for determining the value of the type 2 PH if a simultaneous transmission for a physical uplink shared channel (PUSCH) and a physical uplink control channel (PUCCH) is configured.

### Claim 15 (depends on 14)

The base station of claim 14, wherein the value of the type 2 PH is determined based on a PCMAX of a first cell, a PUSCH transmit power and a PUCCH transmit power.

### Claim 16

A method for receiving a power headroom report (PHR) by a base station in a mobile communication system, the method comprising:
identifying information indicating a first PHR format based on a number of activated uplink carriers for a terminal;
transmitting a control message comprising the information; and
receiving a maximum transmit power (PCMAX) and a power headroom (PH) associated with at least one activated uplink carrier for the terminal using the first PHR format, the PH being obtained based on the PCMAX.

### Claim 17 (depends on 16)

The method of claim 16, wherein the PCMAX and the PH are determined for each serving cell if more than one serving cell is configured.

### Claim 18 (depends on 16)

The method of claim 16, wherein the first PHR format comprises an extended PHR medium access control (MAC) control element (CE),
wherein the extended PHR MAC CE comprises at least one PH field and at least one PCMAX field associated with the at least one the activated uplink carrier for the terminal, and
wherein at least one PCMAX field respectively corresponds to at least one PH field.

### Claim 19 (depends on 16)

The method of claim 16, further comprising:
if a simultaneous transmission for a physical uplink shared channel (PUSCH) and physical uplink control channel (PUCCH) is configured, receiving a value of the type 2 PH and a PCMAX used for determining the value of type 2 PH.

### Claim 20 (depends on 19)

The method of claim 19, wherein the value of the type 2 PH is determined based on a PCMAX of a first cell, a PUSCH transmit power and a PUCCH transmit power.