IP Library › Granted Patent US 10,834,667
Granted Patent B2
US 10,834,667 · App. 16/573,332 · Granted Nov 10, 2020

Discontinuous access to unlicensed spectrum in a new radio environment

Inventors: Ralf Bendlin (Cedar Park, TX); Aditya Chopra (Austin, TX); Arunabha Ghosh (Austin, TX); Abdulrauf Hafeez (Cary, NC)
Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
H04W48/16H04W4/70H04W16/14
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Quick Facts
Patent No.
US 10,834,667
App. No.
16/573,332
Granted
Nov 10, 2020
Kind
B2
Abstract

Various embodiments disclosed herein provide for facilitating a discontinuous access to unlicensed spectrum in a new radio access environment. According an embodiment, a system can comprise performing a scanning procedure that determines whether a first subband and a second subband is available for transmission. The system can further facilitate determining whether the first subband and the second subband are adjacent, wherein a first channel formed at the first subband comprising a first guard band and a second channel formed at the second subband comprising a second guard band that is adjacent to the first guard band. The system can further facilitate in response to determining that the first subband and the second subband are adjacent and available for transmission, eliminating the first guard band and the second guard band.

Claims (47)

1. A system, comprising:

a processor; and

a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising:

determining that a first subband and a second subband are adjacent, wherein a first channel formed at the first subband comprises a first guard band and a second channel formed at the second subband comprises a second guard band, and wherein the second guard band is adjacent to the first guard band;

in response to the determining that the first subband and the second subband are adjacent, eliminating first parts of the first guard band and second parts of the second guard band;

detecting an energy at the first subband;

determining that the energy is below a threshold value; and

performing a scanning procedure.

2. The system of claim 1 , wherein the operations further comprise:

performing a scanning procedure that determines that the first subband and the second subband are available for transmission; and

transmitting an indication to notify a receiver that the first subband and the second subband are available for transmission for a first period of time.

3. The system of claim 1 , wherein the first guard band is allocated a first frequency bandwidth and the second guard band is allocated a second frequency bandwidth.

4. The system of claim 1 , wherein the operations further comprise:

transmitting data selected from a first data group using frequency allocated to the first parts of the first guard band and the second parts of the second guard band.

5. The system of claim 4 , wherein the first data group comprises transmit data and signal data.

6. The system of claim 1 , wherein eliminating the first parts of the first guard band and the second parts of the second guard band comprises adjusting band-pass filters associated with the first guard band and the second guard band.

7. The system of claim 1 , wherein eliminating the first parts of the first guard band and the second parts of the second guard band comprises reallocating a portion of frequency associated with the first guard band and the second guard band to user channel data.

8. The system of claim 1 , wherein eliminating the first parts of the first guard band and the second parts of the second guard band comprises reallocating a portion of frequency associated with the first guard band and the second guard band to user signaling data.

9. The system of claim 1 , wherein the operations further comprise:

transmitting user data using the first subband and the second subband, wherein the user data comprises at least in part data required by a receiver.

10. A method, comprising:

determining, by equipment comprising a processor, that a first subband and a second subband are adjacent and idle, wherein a first channel formed within the first subband comprises a first guard band and a second channel formed within the second subband comprises a second guard band, and wherein the second guard band is adjacent to the first guard band;

in response to the first subband and the second subband being determined to be adjacent and idle, eliminating, by the equipment, first parts of the first guard band and second parts of the second guard band; and

detecting, by the equipment, an energy level at the first subband;

determining, by the equipment, that the energy is below a threshold value; and

performing, by the equipment, a scanning procedure.

11. The method of claim 10 , further comprising:

scanning, by the equipment, to determine that the first subband and the second subband are idle, wherein the scanning comprises detecting the energy level on the first channel and determining that the first subband is idle in response to the energy level being determined to be below the threshold.

12. The method of claim 10 , further comprising:

indicating, by the equipment, to a transmitter that the first subband and the second subband are available for transmission for a first period of time.

13. The method of claim 10 , further comprising:

transmitting, by the equipment, a group of data selected from a first data group using a portion of frequencies allocated to the first parts of the first guard band and the second parts of the second guard band.

14. The method of claim 10 , wherein eliminating the first parts of the first guard band and the second parts of the second guard band comprises reallocating a portion of frequencies associated with the first guard band and the second guard band to user channel data.

15. The method of claim 10 , wherein eliminating the first parts of the first guard band and the second parts of the second guard band comprises reallocating a portion of frequencies associated with the first guard band and the second guard band to user signaling data.

16. The method of claim 10 , wherein eliminating the first parts of the first guard band and the second parts of the second guard band comprises adjusting band-pass filters associated with the first guard band and the second guard band.

17. The method of claim 10 , further comprising:

transmitting, by the equipment, a portion of user data after a guard time, wherein the guard time does not contain information applicable to a receiver.

18. A non-transitory machine-readable medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:

determining that a first subband and a second subband are adjacent, wherein a first channel formed within the first subband comprises a first guard band and a second channel formed within the second subband comprises a second guard band, and wherein the second guard band is adjacent to the first guard band;

in response to the determining that the first subband and the second subband are adjacent, eliminating a first portion of the first guard band and a second portion of the second guard band; and

detecting an energy level at the first subband;

determining that the energy is below a threshold value; and

performing a scanning procedure.

19. The non-transitory machine-readable medium of claim 18 , wherein the operations further comprising:

scanning to determine that the first subband and the second subband contain the energy level below the threshold value; and

transmitting a group of data selected from a first group using a frequency portion allocated to the first guard band and the second guard band.

20. The non-transitory machine-readable medium of claim 18 , wherein the first guard band is allocated a first frequency bandwidth and the second guard band is allocated a second frequency bandwidth.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2019
From: BENDLIN, RALF; CHOPRA, ADITYA; GHOSH, ARUNABHA; HAFEEZ, ABDULRAUF
To: AT&T INTELLECTUAL PROPERTY I, L.P.
Reel/Frame 050403/0179 →
Continuity (2)
Continuation 16277284 · Feb 15, 2019
Related Publication 20200267633A1 · Aug 20, 2020