Method and apparatus for performing permissable amplifying of one or more data symbols using an overdrive regime

Patent metadata

Field	Value
Publication number	US-10979980-B2
Application number	US-201716467291-A
Country	US
Kind code	B2
Filing date	Nov 30, 2017
Priority date	Dec 7, 2016
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

The invention relates to a device for a radio communications system, the device including: a processing unit; a memory unit; and a transceiver including a transmitter provided with a power amplifier; wherein said device is configurable to: send a request to a base station of said communications system for permission of transmission of one or more data symbols, the one or more data symbols being amplified with the power amplifier in an overdrive regime; receive a grant for such transmission; amplify the one or more data symbols with the power amplifier of the transmitter in the overdrive regime; and transmit the one or more data symbols to the base station.

First claim

The invention claimed is:

1. A device comprising:
a processing unit;
a memory unit; and
a transceiver comprising a transmitter provided with a power amplifier;
the processing unit, the memory unit, and the transceiver configured to cause the device, for a radio communications system, to:
send a request to a base station of said communications system for permission of transmission of one or more data symbols, the one or more data symbols being amplified with the power amplifier in an overdrive regime;
receive a grant for such transmission;
amplify the one or more data symbols of a subframe with the power amplifier of the transmitter in the overdrive regime and mute transmission of at least one remaining data symbol within the subframe; and
transmit the one or more data symbols to the base station.

2. The device according to claim 1 , wherein the processing unit, the memory unit, and the transceiver are configured to cause said device to transmit the subframe comprising the one or more data symbols to the base station without exceeding a predetermined maximum average device output power per subframe.

3. The device according to claim 1 , wherein the processing unit, the memory unit, and the transceiver are configured to cause the device to obey an in-band spectrum emission mask of said communications system for a transmission of data symbols to the base station which are amplified not using said overdrive regime for the power amplifier, and wherein said the processing unit, the memory unit, and the transceiver are configured to cause said device to obey a further spectrum emission mask of said communications system different from the in-band spectrum emission mask for a transmission of data symbols to the base station which are amplified using said overdrive regime.

4. A method, comprising:
operating a device within a communication system, comprising:
sending, via a transmitter of the device, a request to a base station of said communications system for permission of

transmission of one or more data symbols of a subframe, the one or more data symbols being amplified with a power amplifier of the transmitter in an overdrive regime;
receiving a grant for such transmission;
amplifying the one or more data symbols with the power amplifier of the transmitter in the overdrive regime and muting transmission of at least one remaining data symbol within the subframe; and
transmitting the one or more data symbols.

5. The method according to claim 4 , wherein the subframe comprising the one or more data symbols is transmitted to the base station without exceeding a predetermined maximum device output power per subframe.

6. The method according to claim 4 , further comprising sending to the base station a priority indication related to the one or more data symbols.

7. A base station, comprising:
a processing unit;
a memory unit; and
a transceiver;
the processing unit, the memory unit, and the transceiver configured to cause, for a radio communications system, the base station to:
receive a request from a device for permission of transmission of one or more data symbols of a subframe while overdriving a power amplifier of a transmitter of the device;
verify if such permission can be granted; and
based on permission being granted, transmit an indication to the device that the transmission of the one or more data symbols for overdriving a power amplifier of a transmitter of the device is allowed, wherein the overdriving is to amplify the one or more data symbols with the power amplifier and mute at least one remaining data symbol within the subframe.

8. The base station according to claim 7 , wherein the processing unit, the memory unit, and the transceiver are configured to cause the base station to receive a priority indication related to the requested transmission of the one or more data symbols, and wherein verifying if such permission can be granted is, at least partially, based on said priority indication.

9. The base station according to claim 7 , wherein the processing unit, the memory unit, and the transceiver are configured to cause the base station to:
schedule frequency resources for the one or more data symbols by at least one of selecting frequency resources that have a non-vanishing predetermined minimum frequency spacing from a carrier band edge and scheduling frequency resources for uplink transmissions such that at least one guard carrier is provided adjacent to the frequency resources scheduled for the one or more data symbols; and
send information regarding the frequency resources scheduled for the one or more data symbols to the device.

10. A method comprising:
operating a base station within a communication system, comprising:
receiving a request from a device for permission of transmission of one or more data symbols while overdriving a power amplifier of a transmitter of the device;
verifying if such permission is granted; and
based on permission being granted, transmitting an indication to the device that the transmission of the one or more data symbols while overdriving a power amplifier of a transmitter of the device is allowed, wherein the overdriving is to amplify the one or more data symbols with the power amplifier and mute at least one remaining data symbol within the subframe.

11. The method according to claim 10 , further comprising receiving a priority indication related to the requested transmission of the one or more data symbols, and wherein said verifying if such permission being granted is, at least partially, based on said priority indication.

12. The method according to claim 10 , further comprising:
scheduling, for the one or more data symbols, frequency resources that have a non-vanishing predetermined minimum frequency spacing from a carrier band edge; and
sending information regarding the scheduled frequency resources to the device.

13. The method according to claim 10 , further comprising:
scheduling frequency resources for uplink transmissions such that at least one guard carrier is provided adjacent to the frequency resources scheduled for the one or more data symbols, and
sending information regarding the frequency resources scheduled for the one or more data symbols to the device.

Assignees

• Alcatel Lucent

Inventors

• Wild Thorsten
• Yu Xin
• Ahmed Salem Rana
• Schaich Frank

Classifications

• H04L1/0001

  Systems modifying transmission characteristics according to link quality, e.g. power backoff (adaptive data allocation for multicarrier modulation H04L5/0044; controlling transmission power for radio systems H04W52/04) · CPC title

• H04W52/283

  Power depending on the position of the mobile · CPC title

• H04W52/367

  Power values between minimum and maximum limits, e.g. dynamic range · CPC title

• H04W52/281

  taking into account user or data type priority · CPC title

• H04W52/346

  distributing total power among users or channels · CPC title