Telecommunication systems

Patent metadata

Field	Value
Publication number	US-12477450-B2
Application number	US-202117923389-A
Country	US
Kind code	B2
Filing date	May 20, 2021
Priority date	May 20, 2020
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

Disclosed is a method of managing a system information parameter, broadcast by an LTE cell of a network on which a User Equipment, UE, is camping, wherein the system information parameter indicates New Radio, NR, frequency bands available for use in an EN-DC configuration, which in a case of network sharing, may be different for each of at least one sharing PLMN, and whereby the system information parameter includes an entry for each of the at least one PLMN that contains the actual NR frequency bands if: sharing is employed for the concerned serving cell; and the NR bands for which the network supports EN-DC is not the same for all of the multiple sharing PLMNs, and wherein the contents of the system information parameter is not signalled if condition a) or b) is not true.

First claim

The invention claimed is:

1 . A method performed by a network in a wireless communication system, the method comprising:
broadcasting, a system information block (SIB) 26a including new radio (NR) bands and a field for a public land mobile network (PLMN), wherein in case that a size of the field is set to 0, all bands in the NR bands apply for all PLMNs listed in an SIB1.

2 . The method of claim 1 ,
wherein the field is plmn-InfoList.

3 . The method of claim 1 ,
wherein the field includes nr-BandList indicating a list of bands, and wherein the nr-BandList is encoded as a bitmap, where a bit N is set to 1 if the current serving cell supports an evolved universal terrestrial radio access new radio dual connectivity (EN-DC) operation with an N-th NR band in the NR bands, and where a bit that has no corresponding bands in the NR bands is set to 0.

4 . The method of claim 1 , further comprising:
identifying whether the serving cell supports an EN-DC operation.

5 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a network, a system information block (SIB) 26a including new radio (NR) bands and a field for a public land mobile network (PLMN) in case that a serving cell supports an evolved universal terrestrial radio access NR dual connectivity (EN-DC) operation, wherein in case that a size of the field is set to 0, all bands in the NR bands apply for all PLMNs listed in an SIB1.

6 . The method of claim 5 ,
wherein the field is plmn-InfoList.

7 . The method of claim 5 , further comprising:
identifying whether the serving cell supports the EN-DC operation.

8 . The method of claim 5 ,
wherein the field includes nr-BandList indicating a list of bands, and wherein the nr-BandList is encoded as a bitmap, where a bit N is set to 1 if the current serving cell supports the EN-DC operation with an N-th NR band in the NR bands, a bit which have no corresponding bands in the NR bands shall be set to 0.

9 . A network, comprising:
a transceiver configured to transmit or receive at least one signal; and at least one processor operatively coupled to the transceiver, wherein the at least one processor is configured to:
broadcast, a system information block (SIB) 26a including new radio (NR) bands and a field for a public land mobile network (PLMN), and
wherein in case that a size of the field is set to 0, all bands in the NR bands apply for all PLMNs listed in an SIB1.

10 . The network of claim 9 ,
wherein the field is plmn-InfoList.

11 . The network of claim 9 ,
wherein the field includes nr-BandList indicating a list of bands, and wherein the nr-BandList is encoded as a bitmap, where a bit N is set to 1 if the current serving cell supports the EN-DC operation with an N-th NR band in the NR bands, a bit which have no corresponding bands in the NR bands shall be set to 0.

12 . The network of claim 9 , wherein the at least one processor is further configured to:
identify whether the serving cell supports an evolved universal terrestrial radio access new radio dual connectivity (EN-DC) operation.

13 . A user equipment (UE) comprising:
a transceiver configured to transmit or receive at least one signal; and at least one processor operatively coupled to the transceiver, wherein the at least one processor is configured to:
receive, from a network, a system information block (SIB) 26a including new radio (NR) bands and a field for a public land mobile network (PLMN) in case that a serving cell supports an evolved universal terrestrial radio access new radio dual connectivity (EN-DC) operation, and
wherein in case that a size of the field is set to 0, all bands in the NR bands apply for all PLMNs listed in an SIB1.

14 . The UE of claim 13 ,
wherein the field is plmn-InfoList.

15 . The UE of claim 13 , wherein the at least one processor is further configured to:
identify whether the serving cell supports an EN-DC operation.

16 . The UE of claim 13 ,
wherein the field includes nr-BandList indicating a list of bands, and wherein the nr-BandList is encoded as a bitmap, where a bit N is set to 1 if the current serving cell supports the EN-DC operation with an N-th NR band in the NR bands, a bit which have no corresponding bands in the NR bands shall be set to 0.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Van Der Velde Himke
• Jung Sangyeob
• Kang Hyunjeong

Classifications

• H04W48/10 Primary

  using broadcasted information · CPC title

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title

• H04W4/06

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title

• H04W76/15

  Setup of multiple wireless link connections · CPC title

• H04W48/12 Primary

  using downlink control channel · CPC title