Coverage adjustment in E-UTRA networks

Patent metadata

Field	Value
Publication number	US-9794809-B2
Application number	US-201615356405-A
Country	US
Kind code	B2
Filing date	Nov 18, 2016
Priority date	Aug 3, 2012
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

Embodiments of systems and techniques for coverage adjustment in evolved universal terrain radio access networks (E-UTRANs) are described. In some embodiments, a network management (NM) apparatus may receive data representative of first and second radio link failure (RLF) reports including information related to respective disconnections of first and second user equipment (UEs) from an E-UTRAN. The NM apparatus may identify a hole in a coverage area of the E-UTRAN based at least in part on the first and second RLF reports, and may perform an automated coverage and capacity optimization (CCO) action to reconfigure cell resources of the E-UTRAN based on the identified hole. Other embodiments may be described and claimed.

First claim

What is claimed is:

1. One or more non-transitory computer readable media having program code that, when executed by one or more processors, causes a Coverage and Capacity Optimization (CCO) component to:
detect service-deficiency for a coverage area based on service performance data collected from a plurality of evolved nodeBs (eNBs), wherein the coverage area is service-deficient when the coverage area has insufficient signal strength to provide threshold connectivity to a Long Term Evolution (LTE) network, and wherein at least some of the service performance data is provided to the plurality of eNBs by one or more user equipment (UEs);
correlate the service performance data with a same user session of a UE of the one or more UEs, a same geographic area, or environmental information; and
send an instruction to an eNB of the plurality of eNBs based on the correlation, wherein the instruction is to instruct the eNB to adapt an evolved universal terrestrial radio access network (E-UTRAN) cell provided by the eNB to increase signal strength in the service-deficient coverage area to provide the threshold connectivity to the LTE network.

2. The one or more non-transitory computer readable media of claim 1 , wherein the instruction is to instruct the eNB to increase a size of the E-UTRAN cell to extend the E-UTRAN cell into the service-deficient coverage area.

3. The one or more non-transitory computer readable media of claim 2 , wherein the service-deficient coverage area is located between the E-UTRAN cell and another E-UTRAN cell provided by another eNB.

4. The one or more non-transitory computer readable media of claim 1 , wherein the instruction is to instruct the eNB to increase or decrease capacity of the E-UTRAN cell based on a number of UEs within the E-UTRAN cell.

5. The one or more non-transitory computer readable media of claim 4 , wherein the service-deficient coverage area is the E-UTRAN cell.

6. The one or more non-transitory computer readable media of claim 1 , wherein the program code, when executed, further causes the CCO component to:
control transmission of a second instruction to initiate performance of one or more minimization of drive tests (MDTs) by one or more eNBs of the plurality of eNBs associated with the detected service-deficient coverage area;
control receipt, from the one or more eNBs, of MDT data that is based on results of the one or more MDTs; and
correlate the MDT data with the service performance data and the same user session of the UE of the one or more UEs, the same geographic area, or the environmental information.

7. The one or more non-transitory computer readable media of claim 6 , wherein the service performance data comprises one or more of a number of active UEs in a given area, internet protocol (IP) throughput, upload or download physical resource block (PRB) usage, packet delay, drop rate, loss rate, the environmental information, and one or more radio link failure (RLF) reports including RLF data, wherein the RLF data comprises one or more of reference signal received power (RSRP) measurements, reference signal received quality (RSRQ) measurements, or radio resource control (RRC) failure events, and wherein the RSRP measurements include location information or the RSRQ measurements include location information.

8. The one or more non-transitory computer readable media of claim 7 , wherein, to correlate the MDT data with the service performance data, the program code, when executed, further causes the CCO component to:
correlate the MDT data with the RLF data and one or more of a number of active UEs in a given area, IP throughput, upload or download PRB usage, packet delay, drop rate, loss rate, or environmental information.

9. The one or more non-transitory computer readable media of claim 1 , wherein the one or more non-transitory computer readable media and the one or more processors are implemented in a network management (NM) apparatus.

10. An apparatus to be implemented as a Coverage and Capacity Optimization (CCO) component, wherein the apparatus is implemented in a network management (NM) computer device, the apparatus comprising:
processor circuitry to:
detect, based on service performance data of a plurality of evolved universal terrestrial radio access network (E-UTRAN) cells provided by a plurality of evolved nodeBs (eNBs), an area with a decrease of available resources for connectivity to a Long Term Evolution (LTE) network,
identify, based on the detected area, a set of eNBs of a plurality of eNBs to perform one or more minimization of drive tests (MDTs), and
determine a coverage area to be adapted based on results of the one or more MDTs; and

communications circuitry coupled with the processor circuitry, the communications circuitry is to:
receive, from the plurality of eNBs, the service performance data,
transmit, to the set of eNBs, a first instruction to perform the one or more MDTs,
receive, from the set of eNBs, the results of the one or more MDTs, and
transmit, to at least one eNB of the set of eNBs, a second instruction to adapt an E-UTRAN cell provided by the eNB to increase resources for connectivity to the LTE network in the determined coverage area.

11. The apparatus of claim 10 , wherein, when the determined coverage area is located between the E-UTRAN cell and another E-UTRAN cell provided by another eNB, the second instruction is to instruct the at least one eNB to increase a size of the E-UTRAN cell to extend the E-UTRAN cell into the determined coverage area.

12. The apparatus of claim 10 , wherein, when the determined coverage area is the E-UTRAN cell, the second instruction is to instruct the at least one eNB to increase or decrease capacity of the E-UTRAN cell based on a number of UEs within the E-UTRAN cell.

13. The apparatus of claim 10 , wherein the communications circuitry and the processor circuitry are implemented in a network management (NM) apparatus.

14. An apparatus to be implemented in an evolved nodeB (eNB), the apparatus comprising:
communications circuitry to:
obtain, from a network management (NM) apparatus, a first instruction to perform one or more minimization of drive tests (MDTs), wherein the first instruction is based on a detected service-deficiency for a coverage area, wherein the coverage area is service-deficient when the coverage area has insufficient signal strength to provide threshold connectivity to a Long Term Evolution (LTE) network,
send, to the NM apparatus, results of the one or more MDTs, and
obtain, from the NM apparatus, a second instruction to adapt an evolved universal terrestrial radio access network (E-UTRAN) cell provided by the eNB; and processor circuitry to:
initiate performance of the one or more MDTs indicated by the first instruction,
identify MDT results based on the one or more MDTs, and
adapt the E-UTRAN cell provided by the eNB based on the second instruction, wherein adaptation of the E-UTRAN cell is to increase signal strength in the service-deficient coverage area to provide the threshold connectivity to the LTE network.

15. The apparatus of claim 14 , wherein the communications circuitry is to:
send, to a network management (NM) apparatus, service performance data of the E-UTRAN cell provided by the eNB, wherein at least some of the service performance data is provided to the eNB by one or more user equipment (UEs), and
wherein detection of the service-deficient coverage area is based on service performance data collected from a plurality of eNBs.

16. The apparatus of claim 14 , wherein to adapt the E-UTRAN cell, the processor circuit

Assignees

• Intel Corp

Inventors

• Chou Joey
• Mena Jorge

Classifications

• H04W12/06

  Authentication · CPC title

• H04W76/15

  Setup of multiple wireless link connections · CPC title

• H04W48/06

  based on traffic conditions · CPC title

• H04L41/0659

  by isolating or reconfiguring faulty entities · CPC title

• H04L5/00

  Arrangements affording multiple use of the transmission path · CPC title