IP Library › Granted Patent US 12701404
Granted Patent B2
US 12701404 · App. 18/014,456 · Granted Aug 4, 2026

Method and device for providing terminal capability information in wireless communication system

Inventors: Seungri Jin (Suwon-si, KR); Soenghun Kim (Suwon-si, KR)
Assignee: Samsung Electronics Co., Ltd.
H04W8/24H04W76/10
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Quick Facts
Patent No.
US 12701404
App. No.
18/014,456
Granted
Aug 4, 2026
Kind
B2
Abstract

The disclosure provides a method of reporting user equipment (UE) capability information by a UE, the method including receiving, from a base station (BS), system information including an indicator supporting a type 2 UE; performing camp-on for a serving cell corresponding to the BS based on the system information; performing a radio resource control (RRC) connection establishment procedure with the BS; transmitting, to the BS, an RRCSetupRequest message including type 1 capability information of the UE; receiving an RRCSetup message from the BS; transmitting, to the BS, type 3 UE capability information of the UE in an RRCSetupComplete message in response to the RRCSetup message; receiving a UE capability enquiry message from the BS; and transmitting at least one of the type 1 capability information, type 2 capability information and type 3 capability information of the UE to the BS in response to the UE capability enquiry message.

Claims (80)

1 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

receiving, from a base station (BS), system information (SI) including information indicating whether a reduced capability (RedCap) UE is supported on a cell;

transmitting, to the BS, a random access (RA) preamble based on preamble configuration information included in the SI;

in response to the RA preamble, receiving, from the BS, a RA response (RAR) including resource information;

transmitting, to the BS, a message3 (Msg3) including a logical channel identifier (LCID), wherein the LCID is used to report first RedCap UE capability information; and

based on a message4 (Msg4) received in response to the Msg3, transmitting, to the BS, a message (Msg) including second RedCap UE capability information,

wherein the LCID is associated with at least one of:

a maximum transmission power of the UE,

a maximum data rate of the UE, or

a maximum channel bandwidth of the UE, and

wherein the Msg includes at least one of Extended Discontinuous Reception (eDRX) request, support of IDLE WakeUpSignal capability information, security algorithm information supported by the UE, or information whether LTE Positioning Protocol (LPP) is supported.

2 . The method of claim 1 ,

wherein when the Msg3 is an RRCSetupRequest message, a size of the RRCSetupRequest message associated with the LCID is M bits, and

wherein when the Msg3 is an RRCResumeRequest message, a size of the RRCResumeRequest message associated with the LCID is one of M bits or N bits.

3 . The method of claim 1 , further comprising:

receiving, from the BS, a UE capability enquiry message; and

transmitting, to the BS, a UE capability information message including third RedCap UE capability information.

4 . The method of claim 1 , further comprising:

wherein the Msg comprises a non-access stratum (NAS) container including a registration request message to a core network (CN).

5 . A method performed by a base station (BS) in a wireless communication system, the method comprising:

transmitting, to a user equipment (UE), system information (SI) including information indicating whether a reduced capability (RedCap) UE is supported on a cell;

receiving, from the UE, a random access (RA) preamble based on preamble configuration information included in the SI;

in response to the RA preamble, transmitting, to the UE, a RA response (RAR) including resource information;

receiving, from the UE, a message3 (Msg3) including a logical channel identifier (LCID), wherein the LCID is used to report first RedCap UE capability information; and

based on a message4 (Msg4) transmitted in response to the Msg3, receiving, from the UE, a message (Msg) including second RedCap UE capability information,

wherein the LCID is associated with at least one of:

a maximum transmission power of the UE,

a maximum data rate of the UE, or

a maximum channel bandwidth of the UE, and

wherein the Msg includes at least one of Extended Discontinuous Reception (eDRX) request, support of IDLE WakeUpSignal capability information, security algorithm information supported by the UE, or information whether LTE Positioning Protocol (LPP) is supported.

6 . The method of claim 5 ,

wherein when the Msg3 is an RRCSetupRequest message, a size of the RRCSetupRequest message associated with the LCID is M bits, and

wherein when the Msg3 is an RRCResumeRequest message, a size of the RRCResumeRequest message associated with the LCID is one of M bits or N bits.

7 . The method of claim 5 , further comprising:

transmitting, to the UE, a UE capability enquiry message; and

receiving, from the UE, a UE capability information message including third RedCap UE capability information.

8 . The method of claim 5 , further comprising:

wherein the Msg comprises a non-access stratum (NAS) container including a registration request message to a core network (CN).

9 . A user equipment (UE) in a wireless communication system, the UE comprising:

a transceiver; and

at least one processor coupled with the transceiver and configured to:

receive, from a base station (BS), system information (SI) including information indicating whether a reduced capability (RedCap) UE is supported on a cell,

transmit, to the BS, a random access (RA) preamble based on preamble configuration information included in the SI,

in response to the RA preamble, receive, from the BS, a RA response (RAR) including resource information,

transmit, to the BS, a message3 (Msg3) including a logical channel identifier (LCID), wherein the LCID is used to report first RedCap UE capability information, and

based on a message4 (Msg4) received in response to the Msg3, transmit, to the BS, a message (Msg) including second RedCap UE capability information,

wherein the LCID is associated with at least one of:

a maximum transmission power of the UE,

a maximum data rate of the UE, or

a maximum channel bandwidth of the UE, and

wherein the Msg includes at least one of Extended Discontinuous Reception (eDRX) request, support of IDLE WakeUpSignal capability information, security algorithm information supported by the UE, or information whether LTE Positioning Protocol (LPP) is supported.

10 . The UE of claim 9 ,

wherein when the Msg3 is an RRCSetupRequest message, a size of the RRCSetupRequest message associated with the LCID is M bits, and

wherein when the Msg3 is an RRCResumeRequest message, a size of the RRCResumeRequest message associated with the LCID is one of M bits or N bits.

11 . The UE of claim 9 , wherein the at least one processor is further configured to:

receive, from the BS, a UE capability enquiry message, and

transmit, to the BS, a UE capability information message including third RedCap UE capability information.

12 . The UE of claim 9 , wherein the at least one processor is further configured to:

wherein the Msg comprises a non-access stratum (NAS) container including a registration request message to a core network (CN).

13 . A base station (BS) in a wireless communication system, the BS comprising:

a transceiver; and

at least one processor coupled with the transceiver and configured to:

transmit, to a user equipment (UE), system information (SI) including information indicating whether a reduced capability (RedCap) UE is supported on a cell,

receive, from the UE, a random access (RA) preamble based on preamble configuration information included in the SI,

in response to the RA preamble, transmit, to the UE, a RA response (RAR) including resource information,

receive, from the UE, a message3 (Msg3) including a logical channel identifier (LCID), wherein the LCID is used to report first RedCap UE capability information, and

based on a message4 (Msg4) transmitted in response to the Msg3, receive, from the UE, a message (Msg) including second RedCap UE capability information,

wherein the LCID is associated with at least one of:

a maximum transmission power of the UE,

a maximum data rate of the UE, or

a maximum channel bandwidth of the UE, and

wherein the Msg includes at least one of Extended Discontinuous Reception (eDRX) request, support of IDLE WakeUpSignal capability information, security algorithm information supported by the UE, or information whether LTE Positioning Protocol (LPP) is supported.

14 . The BS of claim 13 ,

wherein when the Msg3 is an RRCSetupRequest message, a size of the RRCSetupRequest message associated with the LCID is M bits, and

wherein when the Msg3 is an RRCResumeRequest message, a size of the RRCResumeRequest message associated with the LCID is one of M bits or N bits.

15 . The BS of claim 13 , wherein the at least one processor is further configured to:

transmit, to the UE, a UE capability enquiry message, and

receive, from the UE, a UE capability information message including third RedCap UE capability information.

16 . The BS of claim 13 , wherein the at least one processor is further configured to:

wherein the Msg comprises a non-access stratum (NAS) container including a registration request message to a core network (CN).