Granted Patent B2

US 12,262,267 · App. 17/659,910 · Granted Mar 25, 2025

Inventor: Zhe Fu (Guangdong, CN)

Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

H04W36/0088H04L27/2657H04W24/02H04W48/16H04W56/001H04W56/0055

Abstract

Claims (77)

1. A cell measurement method, applied to a User Equipment (UE), comprising:

receiving a first measurement configuration, wherein the first measurement configuration comprises a frequency point to be measured, first configuration information of a first measurement window corresponding to the frequency point to be measured, and a whitelist neighboring cell list, as well as a first starting time offset corresponding to a neighboring cell among a plurality of neighboring cells in the whitelist neighboring cell list;

determining a Synchronization Signal Block (SSB) receiving window corresponding to the neighboring cell in the whitelist neighboring cell list according to the first configuration information of the first measurement window corresponding to the frequency point to be measured and the first starting time offset; and

measuring each neighboring cell in the whitelist neighboring cell list based on an SSB receiving window corresponding to the neighboring cell in the whitelist neighboring cell list;

wherein the first starting time offset is based on at least one of a satellite ephemeris, UE location information, and a difference between a first transmission delay and a second transmission delay corresponding to each neighboring cell, wherein the first transmission delay corresponding to each neighboring cell refers to a signal transmission delay between the neighboring cell and the UE, and the second transmission delay refers to a signal transmission delay between the UE and a current serving cell.

2. The method of claim 1 , wherein

when the first transmission delay corresponding to each neighboring cell is greater than the second transmission delay, the first starting time offset is greater than or equal to zero; or, when the first transmission delay corresponding to each neighboring cell is less than the second transmission delay, the first starting time offset is less than or equal to zero.

3. The method of claim 1 , wherein

the first configuration information comprises a first window period, a first window starting offset, and a first window duration, wherein the first window starting offset refers to a starting time offset of the first measurement window in one first window period;

the determining the Synchronization Signal Block (SSB) receiving window corresponding to the neighboring cell in the whitelist neighboring cell list according to the first configuration information of the first measurement window corresponding to the frequency point to be measured and the first starting time offset comprises:

for a target neighboring cell in the whitelist neighboring cell list, determining a sum of a first starting time offset corresponding to the target neighboring cell and the first window starting offset, wherein the target neighboring cell is any neighboring cell in the whitelist neighboring cell list;

performing modulo operation on the determined sum with the first window period to obtain a numerical value, and determining the obtained numerical value as a starting time point of an SSB receiving window corresponding to the target neighboring cell; and

determining the first window period as a period of the SSB receiving window corresponding to the target neighboring cell, and determining the first window duration as a duration of the SSB receiving window corresponding to the target neighboring cell.

4. The method of claim 1 , wherein when the neighboring cell in the whitelist neighboring cell list and a current serving cell are of inter-frequency or inter-system, the first measurement configuration further comprises second configuration information of a second measurement window and a second starting time offset corresponding to the neighboring cell in the whitelist neighboring cell list.

5. A cell measurement apparatus, applied to a User Equipment (UE), comprising: a processor and a receiver, wherein

the receiver is configured to receive a first measurement configuration, wherein the first measurement configuration comprises a frequency point to be measured, first configuration information of a first measurement window corresponding to the frequency point to be measured, and a whitelist neighboring cell list, as well as a first starting time offset corresponding to a neighboring cell among a plurality of neighboring cells in the whitelist neighboring cell list;

the processor is configured to determine a Synchronization Signal Block (SSB) receiving window corresponding to the neighboring cell in the whitelist neighboring cell list according to the first configuration information of the first measurement window corresponding to the frequency point to be measured and the first starting time offset; and

measure each neighboring cell in the whitelist neighboring cell list based on an SSB receiving window corresponding to the neighboring cell in the whitelist neighboring cell list;

wherein the first starting time offset is based on at least one of a satellite ephemeris, UE location information, and a difference between a first transmission delay and a second transmission delay corresponding to each neighboring cell, wherein the first transmission delay corresponding to each neighboring cell refers to a signal transmission delay between the neighboring cell and the UE, and the second transmission delay refers to a signal transmission delay between the UE and a current serving cell.

6. The apparatus of claim 5 , wherein

when the first transmission delay corresponding to each neighboring cell is greater than the second transmission delay, the first starting time offset is greater than or equal to zero; or, when the first transmission delay corresponding to each neighboring cell is less than the second transmission delay, the first starting time offset is less than or equal to zero.

7. The apparatus of claim 5 , wherein

the first configuration information comprises a first window period, a first window starting offset, and a first window duration, wherein the first window starting offset refers to a starting time offset of the first measurement window in one first window period; and

the processor is configured to:

for a target neighboring cell in the whitelist neighboring cell list, determine a sum of a first starting time offset corresponding to the target neighboring cell and the first window starting offset, wherein the target neighboring cell is any neighboring cell in the whitelist neighboring cell list;

perform modulo operation on the determined sum with the first window period to obtain a numerical value, and determining the obtained numerical value as a starting time point of an SSB receiving window corresponding to the target neighboring cell; and

determine the first window period as a period of the SSB receiving window corresponding to the target neighboring cell, and determining the first window duration as a duration of the SSB receiving window corresponding to the target neighboring cell.

8. The apparatus of claim 5 , wherein when the neighboring cell in the whitelist neighboring cell list and the current serving cell are of inter-frequency or inter-system, the first measurement configuration further comprises a second configuration information of a second measurement window and a second starting time offset corresponding to the neighboring cell in the whitelist neighboring cell list.

9. The apparatus of claim 8 , wherein the second starting time offset is determined by a network side device based on a satellite ephemeris, UE location information and the difference between the first transmission delay and the second transmission delay corresponding to each neighboring cell,

wherein when the first transmission delay corresponding to each neighboring cell is greater than the second transmission delay, the second starting time offset is greater than or equal to zero; or, when the first transmission delay corresponding to each neighboring cell is less than the second transmission delay, the second starting time offset is less than or equal to zero.

10. The apparatus of claim 8 , wherein

the second configuration information comprises a second window period, a second window starting offset and a second window duration, wherein the second window starting offset is used for indicating a starting time offset of the second measurement window in one second window period; and

the processor is further configured to:

for a target neighboring cell in the whitelist neighboring cell list, determine a sum of a second starting time offset corresponding to the target neighboring cell and the second window starting offset, wherein the target neighboring cell is any neighboring cell in the whitelist neighboring cell list;

perform modulo operation on the determined sum with the second window period to obtain a numerical value, and determine the obtained numerical value as a starting time point of a measurement gap window corresponding to the target neighboring cell;

determine the second window period as a period of the measurement gap window corresponding to the target neighboring cell, and determine the second window duration as a duration of the measurement gap window corresponding to the target neighboring cell; and

measure each neighboring cell in the whitelist neighboring cell list based on an SSB receiving window and a measurement gap window corresponding to the neighboring cell in the whitelist neighboring cell list.

11. The apparatus of claim 5 , wherein a difference in signal transmission delays between different neighboring cells in each group of neighboring cells and the UE is within a reference threshold range,

wherein the first measurement configuration further comprises a first adjustment period and a first adjustment step of the first starting time offset,

wherein the first adjustment period and the first adjustment step of the first starting time offset are configured by a network side device according to movement rules of a satellite and the UE.

12. The apparatus of claim 8 , wherein a difference in signal transmission delays between different neighboring cells in each group of neighboring cells and the UE is within a reference threshold range,

wherein the first measurement configuration further comprises a second adjustment period and a second adjustment step of the second starting time offset,

wherein the second adjustment period and the second adjustment step of the second starting time offset are configured by a network side device according to movement rules of a satellite and the UE.

13. A cell measurement apparatus, applied to a User Equipment (UE), comprising: a processor and a receiver,

the receiver is configured to receive a second measurement configuration, wherein the second measurement configuration comprises a frequency point to be measured, a whitelist neighboring cell list corresponding to the frequency point to be measured and first configuration information of a first measurement window;

the processor is configured to determine a first starting time offset corresponding to a neighboring cell among a plurality of neighboring cells in the whitelist neighboring cell list;

determine a Synchronization Signal Block (SSB) receiving window corresponding to the neighboring cell in the whitelist neighboring cell list according to the first configuration information of the first measurement window corresponding to the frequency point to be measured and the first starting time offset; and

measure each neighboring cell in the whitelist neighboring cell list based on an SSB receiving window corresponding to the neighboring cell in the whitelist neighboring cell list;

wherein the processor is configured to:

determine a difference between a first transmission delay and a second transmission delay corresponding to each neighboring cell, wherein the first transmission delay corresponding to each neighboring cell refers to a signal transmission delay between the neighboring cell and the UE, and the second transmission delay refers to a signal transmission delay between the UE and a current serving cell; and

based on at least one of a satellite ephemeris, UE location information, the difference between the first transmission delay and the second transmission delay corresponding to each neighboring cell, determine the first starting time offset.

14. The apparatus of claim 13 ,

wherein when the first transmission delay corresponding to each neighboring cell is greater than the second transmission delay, the first starting time offset is greater than or equal to zero; or, when the first transmission delay corresponding to each neighboring cell is less than the second transmission delay, the first starting time offset is less than or equal to zero.

15. The apparatus of claim 13 , wherein

the first configuration information comprises a first window period, a first window starting offset, and a first window duration, wherein the first window starting offset refers to a starting time offset of the first measurement window in one first window period;

the processor is configured to:

for a target neighboring cell in the whitelist neighboring cell list, determine a sum of a first starting time offset corresponding to the target neighboring cell and the first window starting offset, wherein the target neighboring cell is any neighboring cell in the whitelist neighboring cell list;

perform modulo operation on the determined sum with the first window period to obtain a numerical value, and determining the obtained numerical value as a starting time point of an SSB receiving window corresponding to the target neighboring cell; and

determine the first window period as a period of the SSB receiving window corresponding to the target neighboring cell, and determine the first window duration as a duration of the SSB receiving window corresponding to the target neighboring cell.

16. The apparatus of claim 13 , wherein when the neighboring cell in the whitelist neighboring cell list and a current serving cell are of inter-frequency or inter-system, the second measurement configuration further comprises a second configuration information of a second measurement window.

17. The apparatus of claim 16 , wherein the processor is further configured to,

determine a second starting time offset corresponding to the neighboring cell in the whitelist neighboring cell list based on a satellite ephemeris, UE location information and the difference between the first transmission delay and the second transmission delay corresponding to each neighboring cell;

wherein when the first transmission delay corresponding to each neighboring cell is greater than the second transmission delay, the second starting time offset is greater than or equal to zero; or, when the first transmission delay corresponding to each neighboring cell is less than the second transmission delay, the second starting time offset is less than or equal to zero.

18. The apparatus of claim 16 , wherein

the second configuration information comprises a second window period, a second window starting offset and a second window duration, wherein the second window starting offset is used for indicating a starting time offset of the second measurement window in one second window period; and

the processor is further configured to:

for a target neighboring cell in the whitelist neighboring cell list, determine a sum of a second starting time offset corresponding to the target neighboring cell and the second window starting offset, wherein the target neighboring cell is any neighboring cell in the whitelist neighboring cell list;

perform modulo operation on the determined sum with the second window period to obtain a numerical value, and determine the obtained numerical value as a starting time point of a measurement gap window corresponding to the target neighboring cell;

determine the second window period as a period of the measurement gap window corresponding to the target neighboring cell, and determine the second window duration as a duration of the measurement gap window corresponding to the target neighboring cell; and

measure each neighboring cell in the whitelist neighboring cell list based on an SSB receiving window and a measurement gap window corresponding to the neighboring cell in the whitelist neighboring cell list.

19. The apparatus of claim 13 , wherein a difference in signal transmission delays between different neighboring cells in each group of neighboring cells and the UE is within a reference threshold range,

wherein the processor is further configured to: determine a first adjustment period and a first adjustment step of the first starting time offset,

wherein the first adjustment period and the first adjustment step of the first starting time offset are configured according to movement rules of a satellite and the UE.

20. The apparatus of claim 16 , wherein a difference in signal transmission delays between different neighboring cells in each group of neighboring cells and the UE is within a reference threshold range,

wherein the processor is further configured to:

determine a second adjustment period and a second adjustment step of a second starting time offset corresponding to the neighboring cell in the whitelist neighboring cell list,

wherein the second adjustment period and the second adjustment step of the second starting time offset are configured according to movement rules of a satellite and the UE.

Assignments (1)

Continuity (2)

References Cited (17)