Method and system for mobility measurements in new radio (NR) based mobile communication network

Patent metadata

Field	Value
Publication number	US-11317352-B2
Application number	US-202016857777-A
Country	US
Kind code	B2
Filing date	Apr 24, 2020
Priority date	Apr 26, 2019
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

A method for performing mobility-measurements in new radio (NR) based 3GPP mobile communication network is provided. The method includes receiving network information with respect to a geographical area from one or more user equipments (UEs) operating in geographical area for a predefined duration of time. The received network information is classified at various time-instants during the predefined duration of time as at least one of an NR spectrum availability and NR spectrum non-availability. An overall probability of availability of the NR spectrum within the area is calculated for a time-instant subsequent to the predefined duration of time based on the classified network information. The UE is enabled for scheduling NR measurements within the area based on the calculated probability.

First claim

What is claimed is:

1. A method for performing mobility-measurements in new radio (NR) based communication network, the method comprising:
receiving network information for a plurality of time instances with respect to a geographical area from one or more user equipments (UEs) operating in the geographical area for a predefined duration of time;
classifying the received network information for the plurality of time-instants as at least one of:
an NR spectrum availability or an NR spectrum non-availability;

calculating an overall probability of availability of an NR spectrum within the geographical area based on the classified network information; and
enabling a UE from amongst a plurality of UEs to schedule NR measurements within the geographical area based on the calculated probability.

2. The method of claim 1 , wherein the network information is defined as at least one of:
a physical cell identifier (PCI) for at least one of a 4th generation (4G) cell and a 5th generation (5G) cell;
an SIB2 indicator;
a 5G Cell signal information;
a UE location;
public land mobile network (PLMN) info;
second cell group (SCG) failure info;
beam information; or
5G cell count in a track area identifier (TAI).

3. The method of claim 1 , wherein the classifying of the received network information comprises processing the received network information over a period of time by a server based on a machine-learning criteria to classify a UE location as based on at least one of a 5th generation (5G) network or a 4th generation (4G) network.

4. The method of claim 1 , wherein the calculating of the received network information comprises identifying a density of 5th generation (5G) cells in a 4th generation (4G) cell with respect to a UE location based on a clustering-criteria.

5. The method of claim 4 , wherein the clustering criteria is defined by classifying the received network information into one or more 5G cell clusters.

6. The method of claim 1 , wherein the enabling of the UE from amongst the plurality of UEs to schedule NR measurements comprises:
communicating the calculated probability with respect to the geographical area to a modem within the UE; and
adjusting, by the modem, a frequency of scan and gap between consecutive scans with respect to NR measurements based on the calculated probability, the adjusting of the frequency of scan and gap comprising refraining from scanning in case of null probability.

7. The method of claim 1 , wherein at least one of the receiving of the network information, the classifying of the received network information, or the calculating of the overall probability is executed by one or more of:
a mobile management entity (MME) forming a part of the communication network; or
access and mobile management function (AMF) node forming a part of the communication network.

8. The method of claim 7 , wherein the enabling of the UE comprises:
communicating the calculated probability by at least one of the MME or AMF to the UE for enabling the UE to schedule NR measurements.

9. The method of claim 1 , wherein the network information is received, and classified by a network entity.

10. The method of claim 9 further comprising:
modifying NR measurements configuration parameters and thresholds for at least one UE based on the calculated probability.

11. The method of claim 9 , wherein the network entity comprises a 4th generation (4G) core network, a 5th generation (5G) core network, an eNodeB, a gNodeB, and network function blocks.

12. The method of claim 9 , wherein at least one of the receiving of network information, the classifying of the received network information, or the calculating the overall probability of availability of the NR spectrum causes a network entity forming a part of a core communication to execute at least one of:
adjustment of NR measurements configuration parameters and thresholds based on the calculated probability; or
management of the NR measurement configuration parameters based on the calculated probability.

13. A method for performing mobility-measurements in new radio (NR) based communication network, the method comprising:
determining new radio (NR) cell locations corresponding to a current location of a mobile-device based on an online-geographical map;
computing an extent of an NR coverage associated with the current location based on availability of with at least one of a first frequency range (FR1) or a second frequency range (FR2) for telecommunication by a user equipment (UE); and
enabling the UE at scheduling NR measurements within a geographical area based on ascertaining if the UE is within or nearby the NR coverage.

14. A method for transmission reception (T x /R x ) beam pair selection in 3GPP mobile communication network, the method comprising:
storing a plurality of beam information with respect to a serving beam by a user equipment (UE) in respect of one or more locations;
classifying the stored beam information as at least one of:
cell details, beam pair details, usage information, or route details;

upon visit to a location by the UE, performing at least one of;
switching onto a particular transmission reception beam (T x /R x ) beam pair based on the classified beam information; or
predicting a transmission reception beam direction with respect to the location based on at least one of:
previous Tx/Rx beam direction;
an amount of displacement of the UE from previous visited location; or
a direction of the current location relative to previous location; and

with respect to the current location and based on the classified beam information, comparing a previously logged position of the UE in three dimensions with a current position of the UE in three dimensions to thereby determine an angular deviation and causing the switching onto the particular transmission reception beam (Tx-Rx) beam pair.

15. The method of claim 14 , further comprising:
determining currently switched Tx/Rx beam pair as exhibiting temporary or permanent blockage based on detecting underlying reference signal receive power (RSRP)/reference signal received quality (RSRQ)/signal-to-interference-plus-noise ration (SINR) values;
searching one or more other Tx/Rx beam pair for further switching by recursively searching in the direction of the currently determined Tx/Rx beam pair; and
determining RSRP/RSRQ/SINR value of the searched Tx/Rx beam pair as better than the currently determined Tx/Rx beam pair to thereby enable the further switching on to the searched Tx/Rx beam pair.

16. A server in a telecommunication network for performing mobility-measurements in new radio (NR) based 3GPP mobile communication network, the server comprising:
a transceiver configured to receive network information with respect to a geographical area from one or more user equipments (UEs) operating in the geographical area for a predefined duration of time; and
at least one processor configured to:
classify the received network information at various time-instants during the predefined duration of time as at least one of:
an NR spectrum availability or an NR spectrum non-availability;

calculate an overall probability of availability of an NR spectrum within the geographical area for a time-instant subsequent to the predefined duration of time based on the classified network information, and
enable a UE at scheduling NR measurements within the geographical area based on the calculated probability.

17. A user equipment (UE) for performing mobility-measurements in new radio (NR) based 3GPP mobile communication network,

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jangid Alok Kumar
• Sen Arijit
• JHA Kailash Kumar
• Nishant
• Gandikota Jagadeesh
• Roy Koustav
• Kumar Lalith
• Selvaganesan Siva
• Goel Mudit

Classifications

• H04B7/06952

  Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping · CPC title

• G06N20/00

  Machine learning · CPC title

• H04W88/06

  adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals · CPC title

• H04B7/088

  using beam selection · CPC title

• H04W64/003

  locating network equipment · CPC title