IP Library › Granted Patent US 12707446
Granted Patent B2
US 12707446 · App. 17/437,409 · Granted Aug 11, 2026

Symbol level beam sweeping configuration

Inventors: Yushu Zhang (Beijing, CN); Dawei Zhang (Saratoga, CA); Fangli Xu (Beijing, CN); Haijing Hu (Beijing, CN); Haitong Sun (Irvine, CA); Huaning Niu (San Jose, CA); Jie Cui (San Jose, CA); Manasa Raghavan (Sunnyvale, CA); Wei Zeng (San Diego, CA); Weidong Yang (San Diego, CA); Yakun Sun (San Jose, CA); Yang Tang (Cupertino, CA)
Assignee: Apple Inc.
H04W72/046H04W72/51
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Quick Facts
Patent No.
US 12707446
App. No.
17/437,409
Granted
Aug 11, 2026
Kind
B2
Abstract

Apparatuses, systems, and methods for beam indication latency reduction via a symbol level beam sweeping configuration. A base station may receive, from a user equipment device (UE), a report associated with symbol level beam sweeping. The base station may determine a symbol level beam sweeping configuration. The symbol level beam sweeping configuration may be based, at least in part, on the report. The base station may transmit, to the UE, the symbol level beam sweeping configuration.

Claims (49)

1 . An apparatus, comprising:

a memory; and

a processor in communication with the memory, wherein the processor is configured to:

receive, from a user equipment device (UE), a report associated with symbol level beam sweeping, wherein the report is per component carrier;

determine a symbol level beam sweeping configuration, based, at least in part, on the report, wherein the symbol level beam sweeping configuration is indicated via a parameter included in a channel state information (CSI) report configuration information element (IE), and wherein the parameter is an intraSymbolBeamSweepingSSB parameter with an enumerated value or a nrofBeamsPerSSB parameter with an integer value; and

generate instructions to transmit, to the UE, the symbol level beam sweeping configuration.

2 . The apparatus of claim 1 ,

wherein the CSI report configuration IE is a CSI-ReportConfig IE.

3 . The apparatus of claim 1 ,

wherein the processor is further configured to:

generate instructions to transmit, to the UE, an indication of an energy per resource element (EPRE) offset between a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) of a synchronization signal block (SSB) or an indication of an EPRE offset between the PSS and a physical broadcast channel (PBCH) of the SSB, wherein the EPRE offset is common for SSBs in a serving cell or the EPRE offset is configured for each SSB in a serving cell.

4 . The apparatus of claim 3 ,

wherein the EPRE offset is indicated via a radio resource control (RRC) parameter, wherein the RRC parameter is included in an RRC information element (IE), and wherein the RRC IE is one of a servingCellConfigCommon RRC IE, a ServingCellConfigCommonSIB RRC IE, or an SSB-Configuration-r16 RRC IE, wherein the RRC parameter is one of an epreOffsetPss parameter with an enumerated value or an epreOffsetPss parameter that includes a bitmap.

5 . The apparatus of claim 3 ,

wherein a bitmap indicates a respective EPRE offset for a respective SSB in the serving cell.

6 . A non-transitory computer readable memory medium storing program instructions executable by processing circuitry to cause a base station to:

receive, from a user equipment device (UE), a report associated with symbol level beam sweeping, wherein the report is per band;

determine a symbol level beam sweeping configuration, based, at least in part, on the report, wherein the symbol level beam sweeping configuration is indicated via a parameter included in a channel state information (CSI) report configuration information element (IE), and wherein the parameter is an intraSymbolBeamSweepingSSB parameter with an enumerated value; and

generate instructions to transmit, to the UE, the symbol level beam sweeping configuration.

7 . The non-transitory computer readable memory medium of claim 6 ,

wherein a time period for synchronization signal block (SSB) measurements is based, at least in part, on a number of receive beams applied to an SSB.

8 . The non-transitory computer readable memory medium of claim 6 ,

wherein the report includes a capability indicating whether the UE supports symbol level beam sweeping for a synchronization signal block (SSB).

9 . The non-transitory computer readable memory medium of claim 6 ,

wherein the report includes an indication of a number of receive beams the UE can apply to a synchronization signal block (SSB).

10 . The non-transitory computer readable memory medium of claim 6 ,

wherein the CSI report configuration IE is a CSI-ReportConfig IE.

11 . A method, comprising:

receiving, from a user equipment device (UE), a report associated with symbol level beam sweeping, wherein the report is per band combination;

determining a symbol level beam sweeping configuration, based, at least in part, on the report, wherein the symbol level beam sweeping configuration is indicated via a parameter included in a channel state information (CSI) report configuration information element (IE), and wherein the parameter is an intraSymbolBeamSweepingSSB parameter with an enumerated value or a nrofBeamsPerSSB parameter with an integer value; and

transmitting, to the UE, the symbol level beam sweeping configuration.

12 . The method of claim 11 ,

wherein a time period for synchronization signal block (SSB) measurements is based, at least in part, on a number of receive beams applied to an SSB.

13 . The method of claim 11 ,

wherein the report includes a capability indicating whether the UE supports symbol level beam sweeping for a synchronization signal block (SSB).

14 . The method of claim 11 ,

wherein the report includes an indication of a number of receive beams a UE can apply to a synchronization signal block (SSB).

15 . The method of claim 11 ,

wherein the symbol level beam sweeping configuration enables symbol level beam sweeping.

16 . The method of claim 11 ,

wherein the symbol level beam sweeping configuration is indicated via higher layer signaling, and wherein the higher layer signaling includes radio resource control (RRC) signaling or a medium access control (MAC) control element (CE).

17 . The method of claim 11 ,

wherein the symbol level beam sweeping configuration indicates a number of beams that can be applied for an SSB.

18 . The method of claim 11 ,

wherein the symbol level beam sweeping configuration is indicated via control signaling, and wherein the control signaling is per synchronization signal block (SSB), per channel state information (CSI) report configuration, per bandwidth part, per serving cell, or per UE.

19 . The method of claim 11 ,

wherein the CSI report configuration IE is a CSI-ReportConfig IE.

20 . The method of claim 11 , further comprising:

transmitting, to the UE, an indication of an energy per resource element (EPRE) offset between a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) of a synchronization signal block (SSB) or an indication of an EPRE offset between the PSS and a physical broadcast channel (PBCH) of the SSB, wherein the EPRE offset is common for SSBs in a serving cell or the EPRE offset is configured for each SSB in a serving cell.