IP Library Granted Patent US 12,445,864
Granted Patent B2
US 12,445,864 · App. 17/750,030 · Granted Oct 14, 2025

Optimized X2 cell reporting

Inventors: Shivani Mehrotra (Nashua, NH); Mahendra Singh Rajput (Bangalore, IN)
Assignee: Parallel Wireless, Inc.
H04W24/02H04W24/10H04W92/20
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,445,864
App. No.
17/750,030
Granted
Oct 14, 2025
Kind
B2
Abstract

Methods, systems and computer readable media are disclosed for providing optimized X2 cell reporting. A method includes selecting a subset of virtualized BaseBand Units (vBBU) vnodes to a macro peer that have either reported the X2 peer eNB as a neighbor, or host a cell that the X2 peer eNodeB (eNB) has reported as a neighbor while advertising the neighboring cells towards macro; and advertising cells of this subset of vBBU vnodes as served-cells in X2-Setup Request/Response towards a macro.

Claims (27)

1. A method for optimized X2 cell reporting, comprising:

selecting, at an X2 gateway (X2GW), a subset of virtualized BaseBand Units (vBBU) vnodes, to an X2 peer eNB that is a macro peer;

selecting, by the X2GW while advertising neighboring cells towards the X2 peer eNB, the subset of vBBU vnodes to the macro peer that host a cell that the X2 peer eNB has reported as a neighbor; and

advertising cells of this subset of vBBU vnodes as served-cells in X2-Setup Request/Response towards the X2 peer eNB.

2. The method of claim 1 further comprising storing, by a coordination server, virtualized cells as subsets of cells belonging to each vBBU.

3. The method of claim 2 further comprising advertising all cells of the subset of vBBU vnodes as served-cells in an X2-Setup Request/Response message towards the macro.

4. The method of claim 3 wherein subsets comprise Converged Wireless Systems (CWSs), Virtualized Radio Units (VRUs), are based on the cells that belong to a particular VRU, or are a specific set of cells identified by a macro peer.

5. The method of claim 1 further comprising selecting, by the X2GW while advertising the neighboring cells towards a macro peer, the subset of vBBU vnodes to the macro peer that have reported the X2 peer eNB as a neighbor.

6. A system providing optimized X2 cell reporting, comprising:

a plurality of vBBUs;

a plurality of eNodeBs (eNBs), each eNB in communication with a vBBU; and

a coordination server in communication with the plurality of vBBUs,

wherein a subset of virtualized BaseBand Unit (vBBU) vnodes are selected to a X2 peer eNB that is a macro peer;

wherein the coordination server, while advertising neighboring cells towards the X2 peer eNB, selects the subset of vBBU vnodes to the macro peer that host a cell that the X2 peer eNB has reported as a neighbor; and

wherein cells of this subset of vBBU vnodes are advertised as served-cells in X2-Setup Request/Response towards the X2 peer eNB.

7. The system of claim 6 further comprising the coordination server storing virtualized cells as subsets of cells belonging to each vBBU.

8. The system of claim 7 wherein all cells of the subset of vBBU vnodes are advertised as served-cells in an X2-Setup Request/Response message towards the X2 peer eNB.

9. The system of claim 8 wherein subsets comprise Converged Wireless Systems (CWSs), Virtualized Radio Units (VRUs), are based on the cells that belong to a particular VRU, or are a specific set of cells identified by a macro peer.

10. The system of claim 6 further comprising wherein the coordination server, while advertising the neighboring cells towards a macro peer, selects the subset of vBBU vnodes to the macro peer that have reported the X2 peer eNB as a neighbor.

11. A non-transitory computer-readable medium containing instructions for operating a wireless network system providing optimized X2 cell reporting, which, when executed, cause the system to perform steps comprising:

selecting, at an X2 gateway (X2GW), a subset of virtualized BaseBand Units (vBBU) vnodes, to an X2 peer eNB that is a macro peer;

selecting, by the X2GW while advertising neighboring cells towards the X2 peer eNB, the subset of vBBU vnodes to the macro peer that host a cell that the X2 peer eNB has reported as a neighbor; and

advertising cells of this subset of vBBU vnodes as served-cells in X2-Setup Request/Response towards the X2 peer eNB.

12. The non-transitory computer-readable medium of claim 11 further comprising instructions for storing, by a coordination server, virtualized cells as subsets of cells belonging to each vBBU.

13. The non-transitory computer-readable medium of claim 11 further comprising instructions for selecting, by the X2GW while advertising the neighboring cells towards a macro peer, the subset of vBBU vnodes to the macro peer that have reported the X2 peer eNB as a neighbor.

14. The non-transitory computer-readable medium of claim 11 further comprising instructions for advertising all cells of the subset of vBBU vnodes as served-cells in an X2-Setup Request/Response message towards the macro.

15. The non-transitory computer-readable medium of claim 14 further comprising instructions wherein subsets comprise Converged Wireless Systems (CWSs), Virtualized Radio Units (VRUs), are based on the cells that belong to a particular VRU, or are a specific set of cells identified by a macro peer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 24, 2022
From: MEHROTRA, SHIVANI; RAJPUT, MAHENDRA SINGH
To: PARALLEL WIRELESS, INC.
Reel/Frame 060006/0131 →
Continuity (2)
Provisional Application 63190850 · May 20, 2021
Related Publication 20220377578A1 · Nov 24, 2022
References Cited (11)
US 8879486B2 · Nylander · 2014 [cited by examiner]
US 9900407B2 · Mishra et al. · 2018 [cited by applicant]
US 10595242B2 · Rao et al. · 2020 [cited by applicant]
US 10798631B2 · Agarwal et al. · 2020 [cited by applicant]
US 10959275B2 · Mishra et al. · 2021 [cited by applicant]
US 20120002537A1 · Bao · 2012 [cited by examiner]
KR 20160130373A · 2016 [cited by examiner]
LTE; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (3GPP TS 36.300 version 12.3.0 Release 12), Sep. 2014. [cited by applicant]
LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP) (3GPP TS 36.423 version 12.3.0 Release 12), Sep. 2014. [cited by applicant]
LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP) (3GPP TS 36.413 version 15.3.0 Release 15), Sep. 2018. [cited by applicant]
LTE; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 signalling transport (3GPP TS 36.422 version 12.0.0 Release 12), Sep. 2014. [cited by applicant]