# US 2014/0153500 A1 · Methods, systems, and devices for configuring maximum transmit power

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- Number: US 2014/0153500 A1
- Document ID: US20140153500A1
- Status: Published application
- Kind: A1
- Application number: 13/828,508
- Filed: 2013-03-14
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: QUALCOMM Incorporated
- Applicants: Qualcomm Incorporated
- Inventors: Long DUAN; Soumya DAS; Edwin Chongwoo PARK; Ozgur DURAL; Peter Anthony BARANY
- Web page: https://patentgrep.com/patent/US20140153500A1

## CPC

- H04W 52/24: using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W 52/265: {taking into account the quality of service QoS}
- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- H04W 52/267: {taking into account the information rate}
- H04W 52/281: {taking into account user or data type priority}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Methods, systems, and devices are disclosed for configuring maximum allowed transmit power for wireless communications systems. Some embodiments treat multiple traffic types, such as voice traffic and data traffic, separately with respect to one or more maximum allowed transmit power limits. In some cases, at least first transmit power limit for at least a first traffic type and/or at least a second transmit power limit for at least a second traffic type may be determined. At least the first transmit power limit with respect to the first traffic type or the second transmit power limit with respect to the second traffic type may be utilized. Some embodiments are configured to utilize flexible bandwidth carriers.

## Claims

### Claim 1

A method of configuring maximum allowed transmit power for a wireless communications system, the method comprising:
determining at least first transmit power limit for at least a first traffic type;
determining at least a second transmit power limit for at least a second traffic type; and
utilizing at least the first transmit power limit with respect to the first traffic type or the second transmit power limit with respect to the second traffic type.

### Claim 2 (depends on 1)

The method of claim 1, wherein the first traffic type includes a voice traffic type and the second traffic type includes at least a data traffic type.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
adjusting a pilot to traffic power ratio based on a bandwidth scaling factor of the wireless communication system.

### Claim 4 (depends on 3)

The method of claim 3, further comprising:
determining one or more gain factors with respect to the adjusted pilot to traffic power ratio; and
utilizing the one or more gain factors with respect to the adjusted pilot to traffic power ratio.

### Claim 5 (depends on 1)

The method of claim 1, further comprising:
transmitting the two or more transmit power limits.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
receiving the two or more transmit power limits.

### Claim 7 (depends on 1)

The method of claim 1, wherein the first transmit power limit includes a maximum total transmit power.

### Claim 8 (depends on 1)

The method of claim 1, wherein at least second transmit power limit includes a maximum total scaled transmit power.

### Claim 9 (depends on 8)

The method of claim 8, where the maximum scaled transmit power maintains a fixed power spectrum density (PSD) with respect to a normal bandwidth system.

### Claim 10 (depends on 8)

The method of claim 8, wherein the maximum total scaled transmit power scales logarithmically with a bandwidth scaling factor of a flexible bandwidth carrier system.

### Claim 11 (depends on 10)

The method of claim 10, wherein the maximum total scaled transmit power equals a maximum total transmit power minus floor (10 Log10 N), where N equals the bandwidth scaling factor of the flexible bandwidth carrier system.

### Claim 12 (depends on 1)

The method of claim 1, wherein a base station determines at least the first transmit power limit or the second transmit power limit and transmits them to one or more user equipment.

### Claim 13 (depends on 1)

The method of claim 1, wherein a user equipment determines at least the first transmit power limit or the second transmit power limit with respect to a maximum total transmit power.

### Claim 14 (depends on 1)

The method of claim 1, wherein the wireless communications system includes a flexible bandwidth carrier system.

### Claim 15 (depends on 1)

The method of claim 1, wherein the first traffic type includes a voice service.

### Claim 16 (depends on 1)

The method of claim 1, wherein at least the first traffic type or the second traffic type includes a data service.

### Claim 17 (depends on 1)

The method of claim 1, wherein the first traffic type and the second traffic type utilize different carriers.

### Claim 18 (depends on 1)

The method of claim 1, wherein the wireless communications system includes at least a multi-carrier system or a multi-cell system.

### Claim 19

A wireless communications system for configuring maximum allowed transmit power, the system comprising:
means for determining at least first transmit power limit for at least a first traffic type;
means for determining at least a second transmit power limit for at least a second traffic type; and
means for utilizing at least the first transmit power limit with respect to the first traffic type or the second transmit power limit with respect to the second traffic type.

### Claim 20 (depends on 19)

The wireless communications system of claim 19, wherein the first traffic type includes a voice traffic type and the second traffic type includes at least a data traffic type.

### Claim 21 (depends on 19)

The wireless communications system of claim 19, further comprising:
means for transmitting the one or more transmit power limits.

### Claim 22 (depends on 19)

The wireless communications system of claim 19, further comprising:
means for receiving the one or more transmit power limits.

### Claim 23 (depends on 19)

The wireless communications system of claim 19, where in the first transmit power limit includes a maximum total transmit power.

### Claim 24 (depends on 19)

The wireless communications system of claim 19, wherein at least second transmit power limit includes a maximum total scaled transmit power.

### Claim 25 (depends on 24)

The wireless communications system of claim 24, wherein the maximum scaled transmit power maintains a fixed power spectrum density (PSD) with respect to a normal bandwidth system.

### Claim 26 (depends on 24)

The wireless communications system of claim 24, wherein the maximum total scaled transmit power scales logarithmically with a bandwidth scaling factor of a flexible bandwidth carrier system.

### Claim 27 (depends on 26)

The wireless communications system of claim 26, wherein the maximum total scaled transmit power equals a maximum total transmit power minus floor (10 Log10) N), where N equals the bandwidth scaling factor of the flexible bandwidth carrier system.

### Claim 28 (depends on 19)

The wireless communications system of claim 19, wherein a base station determines at least the first transmit power limit or the second transmit power limit and transmits them to one or more user equipment.

### Claim 29 (depends on 19)

The wireless communications system of claim 19, further comprising:
means for adjusting a pilot to traffic power ratio based on a bandwidth scaling factor.

### Claim 30 (depends on 29)

The wireless communications system of claim 29, further comprising:
means for determining one or more gain factors with respect to the adjusted pilot to traffic power ratio.

### Claim 31 (depends on 19)

The wireless communications system of claim 19, wherein a user equipment determines at least the first transmit power limit or the second transmit power limit with respect to a maximum total transmit power.

### Claim 32 (depends on 19)

The wireless communications system of claim 19, wherein the wireless communications system includes a flexible bandwidth carrier system.

### Claim 33

A computer program product for configuring maximum allowed transmit power for a wireless communications system comprising:
a non-transitory computer-readable medium comprising:
code for determining at least first transmit power limit for at least a first traffic type;
code for determining at least a second transmit power limit for at least a second traffic type; and
code for utilizing at least the first transmit power limit with respect to the first traffic type or the second transmit power limit with respect to the second traffic type.

### Claim 34 (depends on 33)

The computer program product of claim 33, wherein the first traffic type includes a voice traffic type and the second traffic type includes at least a data traffic type.

### Claim 35 (depends on 33)

The computer program product of claim 33, further comprising:
code for transmitting the one or more transmit power limits.

### Claim 36 (depends on 33)

The computer program product of claim 33, further comprising:
code for receiving the one or more transmit power limits.

### Claim 37 (depends on 33)

The computer program product of claim 33, wherein the first transmit power limit includes a maximum total transmit power.

### Claim 38 (depends on 33)

The computer program product of claim 33, wherein at least second transmit power limit includes a maximum total scaled transmit power.

### Claim 39 (depends on 38)

The computer program product of claim 38, wherein the maximum scaled transmit power maintains a fixed power spectrum density (PSD) with respect to a normal bandwidth system.

### Claim 40 (depends on 38)

The computer program product of claim 38, wherein the maximum total scaled transmit power scales logarithmically with a bandwidth scaling factor of a flexible bandwidth carrier system.

### Claim 41 (depends on 40)

The computer program product of claim 40, wherein the maximum total scaled transmit power equals a maximum total transmit power minus floor (10 Log10 N), where N equals the bandwidth scaling factor of the flexible bandwidth carrier system.

### Claim 42 (depends on 33)

The computer program product of claim 33, wherein a base station determines at least the first transmit power limit or the second transmit power limit and transmits them to one or more user equipment.

### Claim 43 (depends on 33)

The computer program product of claim 33, further comprising:
code for adjusting a pilot to traffic power ratio based on a bandwidth scaling factor.

### Claim 44 (depends on 43)

The computer program product of claim 43, further comprising:
code for determining one or more gain factors with respect to the adjusted pilot to traffic power ratio.

### Claim 45 (depends on 33)

The computer program product of claim 33, wherein a user equipment determines at least the first transmit power limit or the second transmit power limit with respect to a maximum total transmit power.

### Claim 46 (depends on 33)

The computer program product of claim 33, wherein the wireless communications system includes a flexible bandwidth carrier system.

### Claim 47

A wireless communications device for configuring maximum allowed transmit power in a wireless communications system, the device comprising:
at least one processor configured to:
determine at least first transmit power limit for at least a first traffic type;
determine at least a second transmit power limit for at least a second traffic type; and
utilize at least the first transmit power limit with respect to the first traffic type or the second transmit power limit with respect to the second traffic type.

### Claim 48 (depends on 47)

The wireless communications device of claim 47, wherein the first traffic type includes a voice traffic type and the second traffic type includes at least a data traffic type.

### Claim 49 (depends on 47)

The wireless communications device of claim 47, wherein the at least one processor is further configured to:
transmit the one or more transmit power limits.

### Claim 50 (depends on 47)

The wireless communications device of claim 47, wherein the at least one processor is further configured to:
receive the one or more transmit power limits.

### Claim 51 (depends on 47)

The wireless communications device of claim 47, wherein the first transmit power limit includes a maximum total transmit power.

### Claim 52 (depends on 47)

The wireless communications device of claim 47, wherein at least second transmit power limit includes a maximum total scaled transmit power.

### Claim 53 (depends on 52)

The wireless communications device of claim 52, wherein the maximum scaled transmit power maintains a fixed power spectrum density (PSD) with respect to a normal bandwidth system.

### Claim 54 (depends on 52)

The wireless communications device of claim 52, wherein the maximum total scaled transmit power scales logarithmically with a bandwidth scaling factor of a flexible bandwidth carrier system.

### Claim 55 (depends on 54)

The wireless communications device of claim 54, wherein the maximum total scaled transmit power equals a maximum total transmit power minus floor (10 Log10) N), where N equals the bandwidth scaling factor of the flexible bandwidth carrier system.

### Claim 56 (depends on 47)

The wireless communications device of claim 47, wherein a base station determines at least the first transmit power limit or the second transmit power limit and transmits them to one or more user equipment.

### Claim 57 (depends on 47)

The wireless communications device of claim 47, wherein the at least one processor is further configured to:
adjust a pilot to traffic power ratio based on a bandwidth scaling factor.

### Claim 58 (depends on 57)

The wireless communications device of claim 57, wherein the at least one processor is further configured to:
determine one or more gain factors with respect to the adjusted pilot to traffic power ratio.

### Claim 59 (depends on 47)

The wireless communications device of claim 47, wherein a user equipment determines at least the first transmit power limit or the second transmit power limit with respect to a maximum total transmit power.

### Claim 60 (depends on 47)

The wireless communications device of claim 47, wherein the wireless communications system includes a flexible bandwidth carrier system.
