US-20260129540-A1 - Coverage and Capacity in a Radio Access Network

US20260129540A1US 20260129540 A1US20260129540 A1US 20260129540A1US-20260129540-A1

Abstract

A method can include receiving, by a base station distributed unit (BS-DU) from a base station central unit (BS-CU), one or more first messages. The first messages can include a prediction of a coverage and capacity issue of a first cell. The coverage and capacity issue can include at least one of a coverage issue or a cell edge capacity issue. The prediction can also include an identifier of the first cell, for example, corresponding to the issue. The method can further include sending, by the BS-DU to the BS-CU and after receiving the one or more first messages, one or more second messages that include an indication of a coverage modification of one or more second cells.

Inventors

Stanislav FILIN
Jian Xu
Esmael Hejazi Dinan
Kyungmin Park

Assignees

OFINNO, LLC

Dates

Publication Date: 20260507
Application Date: 20251218

Claims (20)

1 . A method comprising: receiving, by a base station distributed unit (BS-DU) from a base station central unit (BS-CU), one or more first messages comprising: a prediction of a coverage and capacity issue of a first cell, wherein the coverage and capacity issue comprises at least one of: a coverage issue; or a cell edge capacity issue; and an identifier of the first cell; and sending, by the BS-DU to the BS-CU and after receiving the one or more first messages, one or more second messages comprising an indication of a coverage modification of one or more second cells.
2 . The method of claim 1 , wherein the indication of the coverage modification of the one or more second cells comprises: an indication of a cell coverage state of the one or more second cells; and/or an indication of time when the coverage modification of the one or more second cells is performed.
3 . The method of claim 1 , wherein the one or more first messages further comprise at least one of: an indication of an accuracy of the prediction of the coverage and capacity issue; a prediction of signal metric of one or more wireless devices in the first cell; a prediction of traffic of one or one or more wireless devices in the first cell; a prediction of RACH performance of one or one or more wireless devices in the first cell; a prediction of coverage modification of one or more third cells; or one or more model identifiers of one or more models corresponding to the prediction.
4 . The method of claim 3 , wherein the accuracy of the prediction of the coverage and capacity issue comprises at least one of: an accuracy value; a precision value; a recall value; a F1 score value; a loss function value; a confusion matrix; an area under a receiver operating characteristic (ROC) curve; a mean absolute error; a mean square error; a root mean square error; a R square value; or a confidence interval.
5 . The method of claim 1 , wherein the prediction of the coverage and capacity issue further comprises a prediction of an energy consumption issue.
6 . The method of claim 1 , wherein the indication of the coverage modification of the one or more second cells comprises at least one of: an indication of a cell coverage state of the one or more second cells; or an indication of time when the coverage modification of the one or more second cells is performed.
7 . The method of claim 1 , wherein the prediction of a time of the coverage and capacity issue comprises at least one of: a prediction that the coverage and capacity issue starts at a point of time; a prediction that the coverage and capacity issue starts within a time interval defined by a start time and an end time; a prediction that the coverage and capacity issue starts within a time interval defined by a start time and a duration; a prediction that the coverage and capacity issue starts within a time interval defined by a duration and an end time; a prediction that the coverage and capacity issue starts not earlier than a point of time; or a prediction that the coverage and capacity issue starts not later than a point of time.
8 . A base station distributed unit (BS-DU) comprising: one or more processors; and memory storing instructions that, when executed by the one or more processors, cause the BS-DU to: receive, from a base station central unit (BS-CU), one or more first messages comprising: a prediction of a coverage and capacity issue of a first cell, wherein the coverage and capacity issue comprises at least one of: a coverage issue; or a cell edge capacity issue; and an identifier of the first cell; and send, to the BS-CU and after receiving the one or more first messages, one or more second messages comprising an indication of a coverage modification of one or more second cells.
9 . The BS-DU of claim 8 , wherein the indication of the coverage modification of the one or more second cells comprises: an indication of a cell coverage state of the one or more second cells; and/or an indication of time when the coverage modification of the one or more second cells is performed.
10 . The BS-DU of claim 8 , wherein the one or more first messages further comprise at least one of: an indication of an accuracy of the prediction of the coverage and capacity issue; a prediction of signal metric of one or more wireless devices in the first cell; a prediction of traffic of one or one or more wireless devices in the first cell; a prediction of RACH performance of one or one or more wireless devices in the first cell; a prediction of coverage modification of one or more third cells; or one or more model identifiers of one or more models corresponding to the prediction.
11 . The BS-DU of claim 10 , wherein the accuracy of the prediction of the coverage and capacity issue comprises at least one of: an accuracy value; a precision value; a recall value; a F1 score value; a loss function value; a confusion matrix; an area under a receiver operating characteristic (ROC) curve; a mean absolute error; a mean square error; a root mean square error; a R square value; or a confidence interval.
12 . The BS-DU of claim 8 , wherein the prediction of the coverage and capacity issue further comprises a prediction of an energy consumption issue.
13 . The BS-DU of claim 8 , wherein the indication of the coverage modification of the one or more second cells comprises at least one of: an indication of a cell coverage state of the one or more second cells; or an indication of time when the coverage modification of the one or more second cells is performed.
14 . The BS-DU of claim 8 , wherein the prediction of a time of the coverage and capacity issue comprises at least one of: a prediction that the coverage and capacity issue starts at a point of time; a prediction that the coverage and capacity issue starts within a time interval defined by a start time and an end time; a prediction that the coverage and capacity issue starts within a time interval defined by a start time and a duration; a prediction that the coverage and capacity issue starts within a time interval defined by a duration and an end time; a prediction that the coverage and capacity issue starts not earlier than a point of time; or a prediction that the coverage and capacity issue starts not later than a point of time.
15 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a base station distributed unit (BS-DU), cause the BS-DU to: receive, from a base station central unit (BS-CU), one or more first messages comprising: a prediction of a coverage and capacity issue of a first cell, wherein the coverage and capacity issue comprises at least one of: a coverage issue; or a cell edge capacity issue; and an identifier of the first cell; and send, to the BS-CU and after receiving the one or more first messages, one or more second messages comprising an indication of a coverage modification of one or more second cells.
16 . The non-transitory computer-readable medium of claim 15 , wherein the indication of the coverage modification of the one or more second cells comprises: an indication of a cell coverage state of the one or more second cells; and/or an indication of time when the coverage modification of the one or more second cells is performed.
17 . The non-transitory computer-readable medium of claim 15 , wherein the one or more first messages further comprise at least one of: an indication of an accuracy of the prediction of the coverage and capacity issue; a prediction of signal metric of one or more wireless devices in the first cell; a prediction of traffic of one or one or more wireless devices in the first cell; a prediction of RACH performance of one or one or more wireless devices in the first cell; a prediction of coverage modification of one or more third cells; or one or more model identifiers of one or more models corresponding to the prediction.
18 . The non-transitory computer-readable medium of claim 15 , wherein the prediction of the coverage and capacity issue further comprises a prediction of an energy consumption issue.
19 . The non-transitory computer-readable medium of claim 15 , wherein the indication of the coverage modification of the one or more second cells comprises at least one of: an indication of a cell coverage state of the one or more second cells; or an indication of time when the coverage modification of the one or more second cells is performed.
20 . The non-transitory computer-readable medium of claim 15 , wherein the prediction of a time of the coverage and capacity issue comprises at least one of: a prediction that the coverage and capacity issue starts at a point of time; a prediction that the coverage and capacity issue starts within a time interval defined by a start time and an end time; a prediction that the coverage and capacity issue starts within a time interval defined by a start time and a duration; a prediction that the coverage and capacity issue starts within a time interval defined by a duration and an end time; a prediction that the coverage and capacity issue starts not earlier than a point of time; or a prediction that the coverage and capacity issue starts not later than a point of time.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/US2024/034497, filed Jun. 18, 2024, which claims the benefit of U.S. Provisional Application No. 63/521,823, filed Jun. 19, 2023, all of which are hereby incorporated by reference in their entireties. BRIEF DESCRIPTION OF THE DRAWINGS Examples of several of the various embodiments of the present disclosure are described herein with reference to the drawings. FIG. 1A and FIG. 1B illustrate example mobile communication networks in which embodiments of the present disclosure may be implemented. FIG. 2A and FIG. 2B respectively illustrate a New Radio (NR) user plane and control plane protocol stack. FIG. 3 illustrates an example of services provided between protocol layers of the NR user plane protocol stack of FIG. 2A. FIG. 4A illustrates an example downlink data flow through the NR user plane protocol stack of FIG. 2A. FIG. 4B illustrates an example format of a MAC subheader in a MAC PDU. FIG. 5A and FIG. 5B respectively illustrate a mapping between logical channels, transport channels, and physical channels for the downlink and uplink. FIG. 6 is an example diagram showing RRC state transitions of a UE. FIG. 7 illustrates an example configuration of an NR frame into which OFDM symbols are grouped. FIG. 8 illustrates an example configuration of a slot in the time and frequency domain for an NR carrier. FIG. 9 illustrates an example of bandwidth adaptation using three configured BWPs for an NR carrier. FIG. 10A illustrates three carrier aggregation configurations with two component carriers. FIG. 10B illustrates an example of how aggregated cells may be configured into one or more PUCCH groups. FIG. 11A illustrates an example of an SS/PBCH block structure and location. FIG. 11B illustrates an example of CSI-RSs that are mapped in the time and frequency domains. FIG. 12A and FIG. 12B respectively illustrate examples of three downlink and uplink beam management procedures. FIG. 13A, FIG. 13B, and FIG. 13C respectively illustrate a four-step contention-based random access procedure, a two-step contention-free random access procedure, and another two-step random access procedure. FIG. 14A illustrates an example of CORESET configurations for a bandwidth part. FIG. 14B illustrates an example of a CCE-to-REG mapping for DCI transmission on a CORESET and PDCCH processing. FIG. 15 illustrates an example of a wireless device in communication with a base station. FIG. 16A, FIG. 16B, FIG. 16C, and FIG. 16D illustrate example structures for uplink and downlink transmission. FIG. 17 illustrates an example of a functional architecture for artificial intelligence and/or machine learning. FIG. 18 illustrates an example of using AI/ML in a radio access network. FIG. 19 illustrates an example of using AI/ML in a radio access network. FIG. 20 illustrates an example of coverage areas update in a radio access network. FIG. 21 illustrates an example embodiment of the present disclosure. FIG. 22 illustrates an example embodiment of the present disclosure. FIG. 23 illustrates an example embodiment of the present disclosure. FIG. 24 illustrates an example embodiment of the present disclosure. FIG. 25 illustrates an example embodiment of the present disclosure. FIG. 26 illustrates an example embodiment of the present disclosure. FIG. 27 illustrates an example embodiment of the present disclosure. DETAILED DESCRIPTION In the present disclosure, various embodiments are presented as examples of how the disclosed techniques may be implemented and/or how the disclosed techniques may be practiced in environments and scenarios. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the scope. In fact, after reading the description, it will be apparent to one skilled in the relevant art how to implement alternative embodiments. The present embodiments should not be limited by any of the described exemplary embodiments. The embodiments of the present disclosure will be described with reference to the accompanying drawings. Limitations, features, and/or elements from the disclosed example embodiments may be combined to create further embodiments within the scope of the disclosure. Any figures which highlight the functionality and advantages, are presented for example purposes only. The disclosed architecture is sufficiently flexible and configurable, such that it may be utilized in ways other than that shown. For example, the actions listed in any flowchart may be re-ordered or only optionally used in some embodiments. Embodiments may be configured to operate as needed. The disclosed mechanism may be performed when certain criteria are met, for example, in a wireless device, a base station, a radio environment, a network, a combination of the above, and/or the like. Example criteria may be based, at least in part, on for example, wireless device or net