Granted Patent B2

US 12,267,795 · App. 18/412,284 · Granted Apr 1, 2025

Inventors: Zhipeng Lin (Jiangsu, CN); Asbjörn Grövlen (Stockholm, SE); Fredrik Ovesjö (Älvsjö, SE); Robert Baldemair (Solna, SE); Claes Tidestav (Bålsta, SE)

Assignee: Telefonaktiebolaget LM Ericsson (publ)

H04W56/001H04L27/26025H04W72/1263

Abstract

Claims (47)

1. A method implemented at a terminal device for synchronization signal block (SSB) search in a wireless network, the method comprising:

receiving, from a network device, a message containing an indication of a subcarrier spacing (SCS) of SSB, wherein the SCS of SSB maps to a plurality of SSB pattern candidates;

determining an SSB pattern from the plurality of SSB pattern candidates at least partly according to the SCS of SSB as indicated by the message and information included in the message, wherein the determining the SSB pattern comprises:

responsive to the indicated SCS of SSB being 30 kHz and the information included in the message, determining that Case B of subcarrier spacing applies for an operating band, wherein the information indicates the operating band is a Long Term Evolution-New Radio (LTE-NR) coexistence band; and

obtaining SSB candidate locations based on the determined SSB pattern for SSB search.

2. The method of claim 1 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB differs from the SCS of SSB in default settings corresponding to the operating band, determining the SSB pattern with higher likelihood of LTE-NR co-existing band.

3. The method of claim 1 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB is compatible with a plurality of SSB pattern candidates in default settings, determining a default SSB pattern according to a default configuration corresponding to the operating band.

4. The method of claim 1 , wherein the message comprises a radio resource control (RRC) message.

5. The method of claim 1 , wherein the terminal device comprises a user equipment (UE).

6. The method of claim 1 , wherein the network device comprises a network node.

7. The method of claim 1 , further comprising:

synchronizing the terminal device with the network device based on information obtained from SSBs at the SSB candidate locations.

8. The method of claim 1 , further comprising:

determining timing information based on information obtained from SSBs at the SSB candidate locations.

9. A terminal device to be deployed in a wireless network, comprising:

a processor and computer-readable storage medium that provides instructions that, when executed by the processor, perform:

receiving, from a network device, a message containing an indication of a subcarrier spacing (SCS) of SSB, wherein the SCS of SSB maps to a plurality of SSB pattern candidates;

determining an SSB pattern from the plurality of SSB pattern candidates at least partly according to the SCS of SSB as indicated by the message and information included in the message, wherein the determining the SSB pattern comprises:

responsive to the indicated SCS of SSB being 30 kHz and the information included in the message, determining that Case B of subcarrier spacing applies for an operating band, wherein the information indicates the operating band is a Long Term Evolution-New Radio (LTE-NR) coexistence band; and

obtaining SSB candidate locations based on the determined SSB pattern for SSB search.

10. The terminal device of claim 9 , wherein the message comprises a radio resource control (RRC) message.

11. The terminal device of claim 9 , wherein the terminal device comprises a user equipment (UE).

12. The terminal device of claim 9 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB differs from the SCS of SSB in default settings corresponding to the operating band, determining the SSB pattern with Case B of subcarrier spacing.

13. The terminal device of claim 9 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB differs from the SCS of SSB in default settings corresponding to the operating band, determining the SSB pattern with higher likelihood of LTE-NR co-existing band.

14. The terminal device of claim 9 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB is compatible with a plurality of SSB pattern candidates in default settings, determining a default SSB pattern according to a default configuration corresponding to the operating band.

15. The terminal device of claim 9 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB being 30 kHz and the information included in the message, determining that Case C of subcarrier spacing applies for operating band, wherein the information indicates the operating band is not a LTE-NR coexistence band.

16. A non-transitory computer-readable storage medium that provides instructions that, when executed by a processor, cause the processor to perform operations comprising:

receiving, at a terminal device from a network device, a message containing an indication of a subcarrier spacing (SCS) of SSB, wherein the SCS of SSB maps to a plurality of SSB pattern candidates;

determining an SSB pattern from the plurality of SSB pattern candidates at least partly according to the SCS of SSB as indicated by the message and information included in the message, wherein the determining the SSB pattern comprises:

responsive to the indicated SCS of SSB being 30 kHz and the information included in the message, determining that Case B of subcarrier spacing applies for an operating band, wherein the information indicates the operating band is a Long Term Evolution-New Radio (LTE-NR) coexistence band; and

obtaining SSB candidate locations based on the determined SSB pattern for SSB search.

17. The non-transitory computer-readable storage medium of claim 16 ,

wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB differs from the SCS of SSB in default settings corresponding to the operating band, determining the SSB pattern with Case B of subcarrier spacing.

18. The non-transitory computer-readable storage medium of claim 16 ,

wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB differs from the SCS of SSB in default settings corresponding to the operating band, determining the SSB pattern with higher likelihood of LTE-NR co-existing band.

19. The non-transitory computer-readable storage medium of claim 16 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB is compatible with a plurality of SSB pattern candidates in default settings, determining a default SSB pattern according to a default configuration corresponding to the operating band.

20. The non-transitory computer-readable storage medium of claim 16 , wherein the determining the SSB pattern from the plurality of SSB pattern candidates comprises:

responsive to that the indicated SCS of SSB being 30 kHz and the information included in the message, determining that Case C of subcarrier spacing applies for the operating band, wherein the information indicates the operating band is not a LTE-NR coexistence band.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (39)