IP Library Granted Patent US 12671552
Granted Patent B2
US 12671552 · App. 18/571,659 · Granted Jun 30, 2026

Method performed by user equipment, and user equipment

Inventors: Xiaojun Ma (Shanghai, CN); Chao Luo (Shanghai, CN); Renmao Liu (Shanghai, CN)
Assignee: SHARP KABUSHIKI KAISHA
H04L5/0051
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Quick Facts
Patent No.
US 12671552
App. No.
18/571,659
Granted
Jun 30, 2026
Kind
B2
Abstract

Provided in the present invention is a method performed by user equipment (UE), including: receiving first indication information and second indication information, the first indication information representing a synchronization signal block (SSB) sequence number of an SSB actually transmitted in a network, and the second indication information representing a sequence and indication bits related to a plurality of channel state information reference signal (CSI-RS) configuration groups; and determining, according to the first indication information and the second indication information, the correspondence between a CSI-RS signal corresponding to each one of the plurality of CSI-RS configuration groups and the SSB sequence number of the SSB actually transmitted in the network.

Claims (17)

1 . A method performed by a user equipment (UE) that is in an RRC_IDLE state or an RRC_INACTIVE state, the method comprising:

receiving a system information block comprising a first indication;

receiving a tdd-UL-DL-ConfigurationCommon parameter, as a second indication;

for a frequency range 1 (FR1) band, determining channel state information reference signal (CSI-RS) resources based on the first indication and the second indication, wherein the determined CSI-RS resources comprise:

four CSI-RS resources in two consecutive slots, with two CSI-RS resources in each slot, in a case that (i) a value of the first indication is a first value, and (ii) symbols of resources in a second slot of the two consecutive slots are indicated as downlink according to the second indication, and

two CSI-RS resources in one slot in a case that the value of the first indication is a second value; and

receiving a CSI-RS on the determined CSI-RS resources.

2 . A user equipment (UE), comprising:

a processor; and

a memory storing instructions,

wherein the instructions, when executed by the processor, cause the UE to:

receive: a system information block comprising a first indication;

receive a tdd-UL-DL-ConfigurationCommon parameter, as a second indication;

for a frequency range 1 (FR1) band, determine channel state information reference signal (CSI-RS) resources based on the first indication and the second indication when the UE is in an RRC_IDLE state or an RRC_INACTIVE state, wherein the determined CSI-RS resources comprise:

four CSI-RS resources in two consecutive slots, with two CSI-RS resources in each slot, in a case that (i) a value of the first indication is a first value and (ii) symbols of resources in a second slot of the two consecutive slots are indicated as downlink according to the second indication, and

two CSI-RS resources in one slot in a case that (i) the value of the first indication is a second value; and

receive a CSI-RS on the determined CSI-RS resources.