IP Library Granted Patent US 12,615,621
Granted Patent B2
US 12,615,621 · App. 18/550,135 · Granted Apr 28, 2026

User equipment, base station, and wireless communication method

Inventors: Jia Sheng (Shenzhen, CN); Shahid Jan (Shenzhen, CN)
Assignee: JRD COMMUNICATION (SHENZHEN) LTD.
H04W68/025
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Quick Facts
Patent No.
US 12,615,621
App. No.
18/550,135
Granted
Apr 28, 2026
Kind
B2
Abstract

A wireless communication method performed by a user equipment (UE) in a radio resource control (RRC) idle/inactive state includes being configured, by a base station, with a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling includes a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO and the second set of bits' field indicates an availability indication of a tracking reference signal (TRS).

Claims (30)

1 . A wireless communication method performed by a user equipment (UE) in a radio resource control (RRC) idle/inactive state, comprising:

being configured, by a base station, with a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling comprises a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO, and the first set of bits' field comprises a bitmap, wherein when the bitmap comprises a first value, the UE monitors the PO, and/or when the bitmap comprises a second value, the UE is not required to monitor the PO;

wherein the second set of bits' field indicates an availability indication of a tracking reference signal (TRS), and the second set of bits' field comprises bits codes, wherein when the bits codes comprise a first state, the UE is informed with an availability/presence of TRS, and/or when the bit codes comprise a second state, the UE is informed with an absence/unavailability of TRS;

wherein the L1 signaling of PEI starts with X slot gaps in time domain with the PO, where X is equal to 0 or an integer greater than 0.

2 . The wireless communication method of claim 1 , wherein the first set of bits' field of the L1 signaling carries information in a form of bitmap, to indicate the information of the UE sub-groups for paging before the PO.

3 . The wireless communication method of claim 2 , wherein each bit in a payload of the L1 signaling is associated to each sub-group.

4 . The wireless communication method of claim 1 , wherein the L1 signaling for PEI carrying the information in the form of bitmap to indicate the information of the UE sub-groups for paging before the PO uses a one-to-one mapping or a one-to-many mapping.

5 . The wireless communication method of claim 4 , wherein the one-to-one mapping is used in a case when a number of B bits in a payload of the L1 signaling is equal to or greater than a number of the UE sub-groups.

6 . The wireless communication method of claim 5 , wherein the B bits in the payload of the L1 signaling comprise 6 bits.

7 . The wireless communication method of claim 4 , wherein the one-to-many mapping is used in a case when each bit of B bits in a payload of the L1 signaling is associated to indicate multiple UE sub-groups for paging occasion.

8 . The wireless communication method of claim 7 , wherein the B bits comprise 4 bits, a number of the UE sub-groups is equal to 8, and each bit of B bits in the payload of the L1 signaling is associated to indicate 2 UE sub-groups for paging.

9 . A wireless communication method performed by a base station, comprising:

configuring, to a user equipment (UE) in an RRC idle/inactive state, a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling comprises a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO, and the first set of bits' field comprises a bitmap, wherein when the bitmap comprises a first value, the PO is monitored, and/or when the bitmap comprises a second value, the PO does not need to be monitored;

wherein the second set of bits' field indicates an availability of a tracking reference signal (TRS), and the second set of bits' field comprises bit codes, wherein when the bit codes comprise a first state, the base station informs the UE of an availability/presence of TRS, and/or when the bit codes comprise a second state, the base station informs the UE of an absence/unavailability of TRS;

wherein the L1 signaling of PEI starts with X slot gaps in time domain with the PO, where X is equal to 0 or an integer greater than 0.

10 . The wireless communication method of claim 9 , wherein the first set of bits' field of the L1 signaling carries information in a form of bitmap, to indicate the information of the UE sub-groups for paging before the PO.

11 . The wireless communication method of claim 10 , wherein each bit in a payload of the L1 signaling is associated to each sub-group.

12 . A user equipment (UE), comprising:

a memory;

a transceiver; and

a processor coupled to the memory and the transceiver;

wherein the UE in an RRC idle/inactive state is configured to execute a wireless communication method comprising:

being configured, by a base station, with a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling comprises a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO;

wherein the first set of bits' field comprises a bitmap, wherein when the bitmap comprises a first value, the PO is monitored, and/or when the bitmap comprises a second value, the PO does not need to be monitored;

wherein the second set of bits' field indicates an availability indication of a tracking reference signal (TRS), and the second set of bits' field comprises bit codes, wherein when the bit codes comprise a first state, the base station informs the UE of an availability/presence of TRS, and/or when the bit codes comprise a second state, the base station informs the UE of an absence/unavailability of TRS;

wherein the L1 signaling of PEI starts with X slot gaps in time domain with the PO, where X is equal to 0 or an integer greater than 0.

13 . The UE of claim 12 , wherein the first set of bits' field of the L1 signaling carries information in a form of bitmap, to indicate the information of the UE sub-groups for paging before the PO.

14 . The UE of claim 13 , wherein each bit in a payload of the L1 signaling for PEI is associated to each sub-group.

15 . The UE of claim 12 , wherein the first set of bits' field of L1 signaling comprises a bitmap, wherein when the bitmap comprises a first value, the UE monitors the PO, and/or when the bitmap comprises a second value, the UE is not required to monitor the PO.

16 . The UE of claim 15 , wherein the L1 signaling for PEI carrying the information in the form of bitmap to indicate the information of the UE sub-groups for paging before the PO uses a one-to-one mapping or a one-to-many mapping.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2023
From: SHENG, JIA; JAN, SHAHID
To: JRD COMMUNICATION (SHENZHEN) LTD.
Reel/Frame 064928/0439 →
Continuity (1)
Related Publication 20240163846A1 · May 16, 2024
References Cited (19)
US 20190313475A1 · Siomina · 2019 [cited by examiner]
US 20200404617A1 · Murray · 2020 [cited by examiner]
US 20230362889A1 · Xu · 2023 [cited by examiner]
US 20230421330A1 · Faxér · 2023 [cited by examiner]
US 20240080802A1 · Wu · 2024 [cited by examiner]
EP 3412113B1 · 2020 [cited by applicant]
WO 2019069234A1 · 2019 [cited by applicant]
VIVO “Paging enhancements for idle/inactive mode UE power saving”. 3GPP TSG RAN WG2 #104-e, RI-2100452, Jan. 18, 2021 (Year: 2021). [cited by examiner]
NTT DOCOMO et al: “Discussion on paging enhancements”, 3GPP Draft; R1-2101622R1-2101622, Jan. 25-Feb. 5, 2021 (Year: 2021). [cited by examiner]
Nokia et al: “Evaluation of potential paging enhancements”, 3GPP Draft; R1-2101664 Jan. 25-Feb. 5, 2021 (Year: 2021). [cited by examiner]
VIVO “Paging enhancements for idle/inactive mode UE power saving”. 3GPP TSG RAN WG2 #104-e, RI-82100452, Jan. 18, 2021 (Year: 2021). [cited by examiner]
Qualcomm Inc. “Power saving enhancements for paging reception”. 3GPP TSG RAN WG2 Meeting #113-e, R2-2100313, Jan. 15, 2021 (Year: 2021). [cited by examiner]
International Search Report in International application No. PCT/CN2021/080475,mailed on Aug. 17, 2021. [cited by applicant]
Written Opinion of the International Search Authority in International application No. PCT/CN2021/080475,mailed on Aug. 17, 2021. [cited by applicant]
Vivo. “Paging enhancements for idle/inactive mode UE power saving.” 3GPP TSG RAN WG1 #104-e, R1-2100452., Jan. 18, 2021(Jan. 18, 2021), section 3. [cited by applicant]
Qualcomm Inc. “Power saving enhancements for paging reception.” 3GPP TSG RAN WG2 Meeting #113-e, R2-2100313., Jan. 15, 2021(Jan. 15, 2021), sections 1-3. [cited by applicant]
European Search Report in European application No. 21929629.0, mailed on Oct. 31, 2024. [cited by applicant]
NP1: NTT DOCOMO et al:“Discussion on paging enhancements”, 3GPP Draft;R1-2101622. [cited by applicant]
NP2: Nokia et al:“Evaluation of potential paging enhancements” 3GPP Draft;R1-2101664. [cited by applicant]