Multidimensional grid sampling for radio frequency power feedback
The described technology is generally directed towards multidimensional grid sampling for radio frequency power feedback. A mobile device can sample radio frequency signal power at multiple sample points, and can send sample values to a base station. The multiple sample points can be defined with reference to a grid having a first dimension and a second dimension, such as time and frequency, or delay and Doppler. A variety of techniques are provided to define the multiple sample points.
1. A method, comprising:
sampling, by a first device comprising a processor, radio frequency signal power at multiple sample points, wherein the multiple sample points are defined by a combination of multiple parameters, the multiple parameters comprising:
first dimension parameters for a first dimension of a grid, and
a second dimension parameter for a second dimension of the grid; and
sending, by the first device, sample data produced by the sampling to a second device, the sample data comprising the radio frequency signal power of a group of the multiple sample points.
2. The method of claim 1 , wherein the first dimension parameters comprise at least two of: a dimension sample period parameter, a dimension sample span parameter, or a dimension sample number parameter.
3. The method of claim 1 , wherein the second dimension parameter comprises: a dimension sample period parameter, a dimension sample span parameter, or a dimension sample number parameter.
4. The method of claim 1 , wherein the first dimension is representative of a time dimension and the second dimension is representative of a frequency dimension.
5. The method of claim 1 , wherein the first dimension is representative of a time delay dimension and the second dimension is representative of a Doppler dimension.
6. The method of claim 1 , further comprising:
determining, by the first device, from the first dimension parameters, an additional dimension parameter, other than the first dimension parameters, for the first dimension of the grid.
7. The method of claim 1 , wherein the first dimension parameters comprise a first offset applicable to the first dimension.
8. The method of claim 1 , wherein the sample data comprises sample values that are at least a defined threshold value.
9. A device, comprising:
a processor; and
a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:
sampling radio frequency signal power at multiple sample points, wherein the multiple sample points are defined by a combination of multiple vectors, the multiple vectors comprising:
a first vector that defines an irregular sample pattern for a first dimension of a grid, and
a second vector that defines a second vector sample pattern for a second dimension of the grid; and
sending sample data produced by the sampling to a second device, the sample data comprising the radio frequency signal power of at least two of the multiple sample points.
10. The device of claim 9 , wherein the second vector sample pattern comprises a repetition of the irregular sample pattern defined by the first vector.
11. The device of claim 9 , wherein the first dimension is time and the second dimension is frequency.
12. The device of claim 9 , wherein the first dimension is delay and the second dimension is Doppler.
13. The device of claim 9 , wherein the second vector sample pattern comprises an irregular repetition pattern of the irregular sample pattern defined by the first vector.
14. The device of claim 9 , wherein the second vector sample pattern comprises a regular repetition pattern of the irregular sample pattern defined by the first vector.
15. The device of claim 9 , wherein at least one of the first vector or the second vector is represented by a combinatorial index.
16. The device of claim 9 , wherein the sample data comprises up to a defined total number of sample values.
17. A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:
sending data representing a definition of multiple sample points to a first device, wherein the multiple sample points are used to sample radio frequency signal power by the first device, and wherein the multiple sample points are distributed on a grid comprising a first dimension and a second dimension;
receiving, from the first device, sample data comprising radio frequency signal power of at least a subset of the multiple sample points; and
using the sample data to adjust radio frequency signals transmitted from a second device.
18. The non-transitory machine-readable medium of claim 17 , wherein the definition of the multiple sample points comprises at least one of:
first dimension parameters for the first dimension of the grid, wherein the first dimension parameters comprise parameters selected from a first group of parameters, the first group of parameters comprising a first period, a first span, and a first number of samples for the first dimension of the grid, or
second dimension parameters for the second dimension of the grid, wherein the second dimension parameters comprise parameters selected from a second group of parameters, the second group of parameters comprising a second period, a second span, and a second number of samples for the second dimension of the grid.
19. The non-transitory machine-readable medium of claim 17 , wherein the definition of the multiple sample points comprises at least one of:
a first vector that defines an irregular sample pattern for the first dimension of the grid, or
a second vector that defines, for the second dimension of the grid, a repetition of the irregular sample pattern defined by the first vector.
20. The non-transitory machine-readable medium of claim 17 , wherein:
the first dimension represents a time domain and the second dimension represents a frequency domain, or
the first dimension represents a delay domain and the second dimension represents a Doppler domain.