Granted Patent B2

US 12,376,049 · App. 17/684,274 · Granted Jul 29, 2025

Inventors: Liang Hu (San Diego, CA); Jung Hyun Bae (San Diego, CA); Yuan-Sheng Cheng (San Diego, CA); Philippe Jean Marc Michel Sartori (Naperville, IL)

Assignee: Samsung Electronics Co., Ltd.

H04W56/001H04L27/26025H04W16/28H04W74/0816

Abstract

Claims (75)

1. A method, comprising:

receiving, by a User Equipment (UE), a first Signal Synchronization Block (SSB);

decoding a first Physical Broadcast Channel (PBCH) from the first SSB;

determining, from a Master Information Block (MIB) of the first PBCH, a first beam value;

determining from the first beam value whether a discovery burst transmission window (DBTW) is enabled, by:

determining, based on the first beam value being equal to a first value, that the DBTW is enabled; or

determining, based on the first beam value being equal to a second value, that the DBTW is disabled;

determining, from the first PBCH, a first candidate Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block index; and

calculating a first SS/PBCH block index as A mod Q, wherein A is the first candidate SS/PBCH block index and Q is the first beam value.

2. The method of claim 1 , further comprising:

receiving, by the UE, a second SSB;

decoding a second PBCH from the second SSB;

determining, from a MIB of the second PBCH, a second beam value; and

determining, from the second beam value, whether a DBTW is being employed.

3. The method of claim 2 , comprising:

determining that the second beam value is equal to a predetermined value, and

determining, based on the second beam value being equal to the predetermined value, that a DBTW is not being employed.

4. The method of claim 2 , comprising:

determining that the second beam value is not equal to a predetermined value,

determining, based on the second beam value not being equal to the predetermined value, that a DBTW is being employed, and

determining, from the second beam value, a number of beams in the DBTW.

5. The method of claim 2 , further comprising obtaining system information, wherein the obtaining is performed based on the determination of whether a DBTW is being employed.

6. The method of claim 2 , further comprising:

determining, from the second PBCH, a second candidate SS/PBCH block index; and

determining a second SS/PBCH block index, based on the second candidate SS/PBCH block index and based on the second beam value.

7. The method of claim 6 , wherein the determining of the second SS/PBCH block index comprises inferring the second SS/PBCH block index based on an order of candidate SS/PBCH block index values being reversed within a second DBTW, the second DBTW being associated with, and following, a first DBTW.

8. The method of claim 1 , further comprising receiving a DBTW-identifying bit associated with the first SSB, the DBTW-identifying bit specifying whether the first SSB is within a first DBTW or a second DBTW of two associated DBTWs.

9. The method of claim 8 , wherein the DBTW-identifying bit is a bit of the MIB.

10. The method of claim 8 , wherein the DBTW-identifying bit is subCarrierSpacingCommon.

11. The method of claim 1 , wherein:

the first beam value is greater than 32, and

the method comprises:

receiving a first plurality of SSBs in a first DBTW; and

receiving a second plurality of SSBs in a second DBTW.

12. A User Equipment (UE), comprising:

a radio; and

a processing circuit,

the processing circuit being configured to:

receive a first signal synchronization block (SSB);

decode a first Physical Broadcast Channel (PBCH) from the first SSB;

determine, from a Master Information Block (MIB) of the first PBCH, a first beam value;

determine from the first beam value whether a discovery burst transmission window (DBTW) is enabled, by:

determining, based on the first beam value being equal to a first value, that the DBTW is enabled; or

determining, based on the first beam value being equal to a second value, that the DBTW is disabled;

determine, from the first PBCH, a first candidate Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block index; and

calculate a first SS/PBCH block index as A mod Q, wherein A is the first candidate SS/PBCH block index and Q is the first beam value.

13. The UE of claim 12 , wherein the processing circuit is further configured to:

receive a second SSB;

decode a second PBCH from the second SSB;

determine, from a MIB of the second PBCH, a second beam value; and

determine, from the second beam value, whether a DBTW is being employed.

14. The UE of claim 13 , wherein the processing circuit is configured to:

determine that the second beam value is equal to a predetermined value, and

determine, based on the second beam value being equal to the predetermined value, that a DBTW is not being employed.

15. The UE of claim 14 , wherein the processing circuit is configured to:

determine that the second beam value is not equal to the predetermined value,

determine, based on the second beam value not being equal to the predetermined value, that a DBTW is being employed, and

determine, from the second beam value, a number of beams in the DBTW.

16. The UE of claim 13 , wherein the processing circuit is further configured to obtain system information, wherein the obtaining is performed based on the determination of whether a DBTW is being employed.

17. The UE of claim 13 , wherein the processing circuit is further configured to:

determine, from the second PBCH, a second candidate SS/PBCH block index; and

determine a second SS/PBCH block index, based on the second candidate SS/PBCH block index and based on the second beam value.

18. The UE of claim 17 , wherein the determining of the second SS/PBCH block index comprises inferring the second SS/PBCH block index based on an order of candidate SS/PBCH block index values being reversed within a second DBTW, the second DBTW being associated with, and following, a first DBTW.

19. The UE of claim 12 , wherein the processing circuit is further configured to receive a DBTW-identifying bit associated with the first SSB, the DBTW-identifying bit specifying whether the first SSB is within a first DBTW or a second DBTW of two associated DBTWs,

wherein the DBTW-identifying bit is subCarrierSpacingCommon.

20. A User Equipment (UE), comprising:

a radio; and

means for processing,

the means for processing being configured to:

receive a signal synchronization block (SSB);

decode a Physical Broadcast Channel (PBCH) from the SSB;

determine, from a Master Information Block (MIB) of the PBCH, a beam value; and

determine, from the beam value, whether a discovery burst transmission window (DBTW) is enabled, by:

determining, based on the beam value being equal to a first value, that the DBTW is enabled; or

determining, based on the beam value being equal to a second value, that the DBTW is disabled.

Assignments (1)

Continuity (4)

References Cited (14)