Compression of radio signals with adaptive mapping

Patent metadata

Field	Value
Publication number	US-10985809-B2
Application number	US-202016822304-A
Country	US
Kind code	B2
Filing date	Mar 18, 2020
Priority date	Jan 22, 2018
Publication date	Apr 20, 2021
Grant date	Apr 20, 2021

Abstract

The described technology is generally directed towards selecting a compression and/or quantization function for communicating data to and from an analog front end of a radio unit of a base station coupled to a digital baseband processor of a central unit of the base station. The compression function and/or quantization function can be adaptively and/or otherwise selected based on various criteria, such as the amount of data being transmitted, whether the data corresponds to reference signals or other data, the network architecture (e.g., digital beamforming or hybrid beamforming) in use, and so on.

First claim

What is claimed is:

1. A method, comprising:
selecting, by a transmitter, a compression mapping function for compression of radio signal data to be transmitted to a receiver, resulting in a selected compression mapping function, wherein selecting the compression mapping function comprises:
selecting a first compression mapping function as the compression mapping function in response to determining that hybrid beamforming is to be employed for transmission of the radio signal data, and
selecting a second compression mapping function as the compression mapping function in response to determining that digital beamforming is to be employed for the transmission of the radio signal data, wherein the first compression mapping function is different from the second compression mapping function; and

transmitting, by the transmitter, compressed data to the receiver, wherein compressing of the radio signal data resulting in the compressed data comprises using the selected compression mapping function on the radio signal data.

2. The method of claim 1 , wherein compressing the radio signal data comprises compressing the radio signal data based on a parameter vector employed with the selected compression mapping function.

3. The method of claim 2 , further comprising:
transmitting, by the transmitter, the parameter vector to the receiver.

4. The method of claim 2 , further comprising:
determining, by the transmitter, the parameter vector based on an estimated amount of uplink data associated with the radio signal data.

5. The method of claim 2 , further comprising:
determining, by the transmitter, the parameter vector based on information received from a scheduler.

6. The method of claim 2 , further comprising:
determining, by the transmitter, the parameter vector based on an estimated amount of the downlink data associated with the radio signal data.

7. The method of claim 1 , further comprising:
selecting, by the transmitter, a number of bits for the compressing based on a network architecture determined to be applicable to a device comprising the transmitter.

8. A system, comprising:
a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, the operations comprising:
selecting a compression mapping function for compression of radio signal data to be transmitted to a receiver, wherein selecting the compression mapping function comprises:
selecting a first compression mapping function as the compression mapping function in response to determining that hybrid beamforming will be employed for transmission of the radio signal data, and
selecting a second compression mapping function as the compression mapping function in response to determining that digital beamforming will be employed for the transmission of the radio signal data, wherein the first compression mapping function is different from the second compression mapping function; and

transmitting, via a transmitter, compressed data to the receiver, wherein the compressed data is compressed using the compression mapping function on the radio signal data.

9. The system of claim 8 , wherein the compression of the radio signal data resulting in the compressed data is based on a parameter vector employed with the compression mapping function.

10. The system of claim 9 , wherein the operations further comprise:
transmitting, by the transmitter, the parameter vector to the receiver.

11. The system of claim 9 , wherein the operations further comprise:
determining the parameter vector based on an estimated amount of uplink data associated with the radio signal data.

12. The system of claim 9 , wherein the operations further comprise:
determining the parameter vector based on information received from a scheduler.

13. The system of claim 9 , wherein the operations further comprise:
determining the parameter vector based on an estimated amount of the downlink data associated with the radio signal data.

14. The system of claim 8 , wherein the operations further comprise:
selecting a number of bits for the compressing based on a network architecture determined to be applicable to the system.

15. A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor of a device, facilitate performance of operations, the operations comprising:
compressing radio signal data to be transmitted to a receiver using a selected compression mapping function for, the compressing resulting in compressed data, wherein the selected compression mapping function comprises:
a first compression mapping function in response to determining that hybrid beamforming is to be employed for transmission of the radio signal data, or
a second compression mapping function in response to determining that digital beamforming is to be employed for the transmission of the radio signal data, wherein the first compression mapping function is different from the second compression mapping function; and

transmitting, via a transmitter, the compressed data to the receiver.

16. The non-transitory machine-readable medium of claim 15 , wherein the compressed data is compressed based further on a parameter vector employed with the selected compression mapping function.

17. The non-transitory machine-readable medium of claim 16 , wherein the operations further comprise:
transmitting, by the transmitter, the parameter vector to the receiver.

18. The non-transitory machine-readable medium of claim 16 , wherein the operations further comprise:
determining the parameter vector based on an estimated amount of uplink data associated with the radio signal data.

19. The non-transitory machine-readable medium of claim 16 , wherein the operations further comprise:
determining the parameter vector based on information received from a scheduler.

20. The non-transitory machine-readable storage medium of claim 16 , wherein the operations further comprise:
determining the parameter vector based on an estimated amount of downlink data associated with the radio signal data.

Assignees

• At & T Ip I Lp

Inventors

• Chopra Aditya
• Ghosh Arunabha
• Majmundar Milap
• Nammi Sairamesh

Classifications

• H03M7/302

  characterised by the number of quantisers and their type and resolution · CPC title

• H04B7/0456 Primary

  Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting · CPC title

• H04L25/00

  Baseband systems · CPC title

• H04B7/0626

  Channel coefficients, e.g. channel state information [CSI] · CPC title

• H04B7/0617

  for beam forming · CPC title