# US 2019/0174435 A1 · Configuring Transmission Power Of A Transmission By A Wireless Communication Device

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- Number: US 2019/0174435 A1
- Document ID: US20190174435A1
- Status: Published application
- Kind: A1
- Application number: 16/098,320
- Filed: 2017-05-12
- Published: 2019-06-06
- Earliest claimed: 2016-05-16
- Assignees: Telefonaktiebolaget LM Ericsson (publ)
- Applicants: Telefonaktiebolaget LM Ericsson (publ)
- Inventors: Soma TAYAMON; Luis Felipe DEL CARPIO VEGA; Wei SHEN
- Web page: https://patentgrep.com/patent/US20190174435A1

## CPC

- H04W 52/48: during retransmission after error or non-acknowledgment
- H04W 52/146: {Uplink power control}
- H04W 52/245: {taking into account received signal strength}
- H04W 52/281: {taking into account user or data type priority}
- H04W 52/38: TPC being performed in particular situations
- H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Methods and devices for configuring a transmission power of a transmission by a wireless communication device (102) are provided. For instance, an example method (200) is described that includes determining (202) whether the wireless communication device (102) is to control the transmission power (114) of the transmission (104) in accordance with transmission power control commands (108) from a radio network node (106). In an aspect, the determination is based on whether the wireless communication device (102) is configured to dynamically adjust a clear channel assessment (CCA) threshold for the transmission (104) and based on a traffic type (112) conveyed by the transmission (104). The example method may also include transmitting (204) the transmission (104) with a transmission power (114) that is configured based on such a determination.

## Claims

### Claim at position 1

1-38. (canceled)

### Claim 39

A method for configuring a transmission power of a transmission by a wireless communication device, the method comprising:
determining whether the wireless communication device is to control the transmission power of the transmission in accordance with transmission power control commands from a radio network node, based on whether the wireless communication device is configured to dynamically adjust a clear channel assessment (CCA) threshold for the transmission and based on a traffic type conveyed by the transmission; and
transmitting the transmission with a transmission power that is configured based on the determination.

### Claim 40 (depends on 39)

The method of claim 39:
wherein the determining whether the wireless communication device is to control the transmission power in accordance with the transmission power control commands comprises determining that the wireless communication device is not to control the transmission power in accordance with the transmission power control commands, responsive to determining that the wireless communication device is configured to dynamically adjust the CCA threshold for the transmission and that the traffic type conveyed by the transmission is high-priority; and
wherein the transmitting the transmission to the radio network node comprises transmitting the transmission to the radio node without applying the transmission power control commands to the transmission based on the determination that the wireless communication device is not to control the transmission power of the transmission.

### Claim 41 (depends on 39)

The method of claim 39, further comprising:
receiving an acknowledgement message from the radio network node responsive to the transmission; and
transmitting one or more subsequent transmissions without applying the transmission power control commands to the one or more subsequent transmissions based on receiving the acknowledgement message.

### Claim 42 (depends on 39)

The method of claim 39, further comprising:
receiving a rejection message from the radio network node responsive to the transmission; and
transmitting one or more subsequent transmissions in accordance with the transmission power control commands. based on receiving the rejection message.

### Claim 43 (depends on 39)

The method of claim 39, wherein the determining whether the wireless communication device is to control the transmission power in accordance with the transmission power control commands comprises:
generating, based on whether the wireless communication device is configured to dynamically adjust the CCA threshold for the transmission and based on the traffic type conveyed by the transmission, a request message requesting permission to control the transmission power of the transmission without regard to transmission power control commands from the radio network node; and
transmitting the request message to the radio network node.

### Claim 44

A method, performed by a radio network node, for configuring a transmission power of a transmission by a wireless communication device configured to dynamically adjust a clear channel assessment (CCA) threshold for the transmission, the method comprising:
receiving, from the wireless communication device, a request message that requests permission to transmit the transmission without applying transmission power control commands transmitted by the radio network node to the wireless communication device;
determining, in response to receiving the request message, whether the wireless communication device is permitted to transmit the transmission without applying transmission power control commands; and
transmitting a response message to the wireless communication device, the response message indicating whether the wireless communication device is permitted to transmit the transmission without applying the transmission power control commands.

### Claim 45 (depends on 44)

The method of claim 44, further comprising identifying the request message based on determining that the received signal strength of the request message is greater than an expected received signal strength associated with the wireless communication device.

### Claim 46 (depends on 44)

The method of claim 44, wherein the identifying the request message based on determining that the received signal strength of the request message comprises identifying the request message based on determining that the received signal strength of the request message is greater than the expected received signal strength by at least a threshold amount.

### Claim 47 (depends on 44)

The method of claim 44, further comprising identifying the request message based on:
determining whether the request message conforms to a defined request frame structure;
determining whether the received signal strength of the request message is similar to an expected received signal strength associated with the wireless communication device; and/or
determining whether the request message comprises information indicative of the traffic type conveyed by the transmission.

### Claim 48 (depends on 47)

The method of claim 47, wherein the expected received signal strength corresponds to a received signal strength expected where the wireless communication device transmits in accordance with the transmission power control commands.

### Claim 49

A wireless communication device for configuring a transmission power of a transmission by the wireless communication device, the wireless communication device comprising:
processing circuitry;
memory containing instructions executable by the processing circuitry whereby the wireless communication device is operative to:
determine whether the wireless communication device is to control the transmission power of the transmission in accordance with transmission power control commands from a radio network node, based on whether the wireless communication device is configured to dynamically adjust a clear channel assessment (CCA) threshold for the transmission and based on a traffic type conveyed by the transmission; and
transmit the transmission with a transmission power that is configured based on the determination.

### Claim 50 (depends on 49)

The wireless communication device of claim 49, wherein the instructions are such that the wireless communication device is operative to:
determine whether the wireless communication device is to control the transmission power in accordance with the transmission power control commands by determining that the wireless communication device is not to control the transmission power in accordance with the transmission power control commands, responsive to determining that the wireless communication device is configured to dynamically adjust the CCA threshold for the transmission and that the traffic type conveyed by the transmission is high-priority; and
transmit the transmission to the radio network node by transmitting the transmission to the radio node without applying the transmission power control commands to the transmission based on the determination that the wireless communication device is not to control the transmission power of the transmission.

### Claim 51 (depends on 49)

The wireless communication device of claim 49, wherein the instructions are such that the wireless communication device is operative to:
receive an acknowledgement message from the radio network node responsive to the transmission; and
transmit one or more subsequent transmissions without applying the transmission power control commands to the one or more subsequent transmissions based on receiving the acknowledgement message.

### Claim 52 (depends on 49)

The wireless communication device of claim 49, wherein the instructions are such that the wireless communication device is operative to:
receive a rejection message from the radio network node responsive to the transmission; and
transmit one or more subsequent transmissions in accordance with the transmission power control commands. based on receiving the rejection message.

### Claim 53 (depends on 49)

The wireless communication device of claim 49, wherein the instructions are such that the wireless communication device is operative to determine whether the wireless communication device is to control the transmission power in accordance with the transmission power control commands by:
generating, based on whether the wireless communication device is configured to dynamically adjust the CCA threshold for the transmission and based on the traffic type conveyed by the transmission, a request message requesting permission to control the transmission power of the transmission without regard to transmission power control commands from the radio network node; and
transmitting the request message to the radio network node.

### Claim 54

A radio network node for configuring a transmission power of a transmission of high-priority traffic by a wireless communication device configured to dynamically adjust a clear channel assessment (CCA) threshold for the transmission, the radio network node comprising:
processing circuitry;
memory containing instructions executable by the processing circuitry whereby the radio network node is operative to:
receive, from the wireless communication device, a request message that requests permission to transmit the transmission without applying transmission power control commands transmitted by the radio network node to the wireless communication device;
determine, in response to receiving the request message, whether the wireless communication device is permitted to transmit the transmission without applying transmission power control commands; and
transmit a response message to the wireless communication device, the response message indicating whether the wireless communication device is permitted to transmit the transmission without applying the transmission power control commands.

### Claim 55 (depends on 54)

The radio network node of claim 54, wherein the instructions are such that the radio network node is operative to identify the request message based on determining that the received signal strength of the request message is greater than an expected received signal strength associated with the wireless communication device.

### Claim 56 (depends on 55)

The radio network node of claim 55, wherein the instructions are such that the radio network node is operative to identify the request message based on determining that the received signal strength of the request message is greater than the expected received signal strength by at least a threshold amount.

### Claim 57 (depends on 54)

The radio network node of claim 54, wherein the instructions are such that the radio network node is operative to identify the request message based on:
determining whether the request message conforms to a defined request frame structure;
determining whether the received signal strength of the request message is similar to an expected received signal strength associated with the wireless communication device; and/or
determining whether the request message comprises information indicative of the traffic type conveyed by the transmission.

### Claim 58 (depends on 57)

The radio network node of claim 57, wherein the expected received signal strength corresponds to a received signal strength expected where the wireless communication device transmits in accordance with the transmission power control commands.
