Granted Patent B2

US 12,464,336 · App. 18/227,300 · Granted Nov 4, 2025

Inventor: Sha Zhang (Dongguan, CN)

Assignee: VIVO MOBILE COMMUNICATION CO., LTD.

H04W8/183H04B7/0404H04W72/23H04W88/06

Abstract

Claims (83)

1 . A dual Subscriber Identity Module (SIM) communication method for a terminal, wherein dual SIM cards share a main antenna and a diversity antenna, the dual SIM cards comprise a first SIM card and a second SIM card, and the method comprises:

determining whether slots of the dual SIM cards are aligned; and

when the slots of the dual SIM cards are not aligned, controlling the first SIM card and the second SIM card to communicate in a first manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a first manner comprises:

within an uplink slot of the second SIM card, controlling the second SIM card to transmit a signal by using the main antenna;

for an odd-numbered downlink slot of the second SIM card, controlling the second SIM card to receive a signal by using the diversity antenna within the entire odd-numbered downlink slot, and controlling the first SIM card to transmit a signal by using the main antenna in a preceding time period within the odd-numbered downlink slot and to receive a signal by using the main antenna in a later time period within the odd-numbered downlink slot; and

for an even-numbered downlink slot of the second SIM card, in a preceding time period within the even-numbered downlink slot, controlling the second SIM card to receive a signal by using the diversity antenna and controlling the first SIM card to transmit a signal by using the main antenna, and in a later time period within the even-numbered downlink slot, controlling the first SIM card to receive a signal by using the main antenna, wherein

the uplink slot of the second SIM card and a downlink slot of the second SIM card are alternated.

2 . The dual SIM communication method according to claim 1 , wherein the controlling the first SIM card and the second SIM card to communicate in a first manner further comprises:

for the even-numbered downlink slot of the second SIM card, when the first SIM card receives a signal by using the main antenna, controlling the first SIM card to simultaneously receive a signal by using the diversity antenna.

3 . The dual SIM communication method according to claim 1 , wherein the controlling the first SIM card and the second SIM card to communicate in a first manner further comprises:

within the uplink slot of the second SIM card, controlling the first SIM card to receive a signal by using the diversity antenna within at least a preceding time period within the uplink slot.

4 . The dual SIM communication method according to claim 1 , further comprising:

obtaining a transmit power of the terminal and a receive power of the terminal,

calculating a first difference between the transmit power and an antenna isolation threshold;

calculating a second difference between the first difference and the receive power; and

adjusting a communication state of the terminal based on the second difference.

5 . The dual SIM communication method according to claim 4 , wherein the adjusting a communication state of the terminal based on the second difference comprises:

when the second difference is greater than an upper limit of a preset range, adjusting the terminal to enter a dual SIM dual standby mode; and

when the second difference is within the preset range, performing at least one of reducing a modulation order of a SIM card in a receive state in the terminal and reducing a working bandwidth of a SIM card in a transmit state in the terminal.

6 . The dual SIM communication method according to claim 1 , further comprising: when the slots of the dual SIM cards are aligned, controlling the first SIM card and the second SIM card to communicate in a second manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a second manner comprises:

within a transmit slot, controlling the first SIM card and the second SIM card to transmit a signal by using the main antenna in a time division manner; and

within a receive slot, controlling the first SIM card and the second SIM card to receive a signal by using the main antenna in a time division manner and controlling the first SIM card and the second SIM card to receive a signal by using the diversity antenna in a time division manner.

7 . The dual SIM communication method according to claim 1 , further comprising: when the slots of the dual SIM cards are aligned, controlling the first SIM card and the second SIM card to communicate in a third manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a third manner comprises:

within a transmit slot, controlling the first SIM card and the second SIM card to transmit a signal by using the main antenna in a frequency division manner; and

within a receive slot, controlling the first SIM card and the second SIM card to receive a signal by using the main antenna in a frequency division manner and controlling the first SIM card and the second SIM card to receive a signal by using the diversity antenna in a frequency division manner.

8 . A terminal, comprising:

dual Subscriber Identity Module (SIM) cards, wherein the dual SIM cards share a main antenna and a diversity antenna, and the dual SIM cards comprise a first SIM card and a second SIM card;

a processor; and

a memory having a computer program or an instruction stored thereon, wherein the computer program or the instruction, when executed by the processor, causes the processor to perform a dual SIM communication method for the terminal, comprising:

determining whether slots of the dual SIM cards are aligned; and

when the slots of the dual SIM cards are not aligned, controlling the first SIM card and the second SIM card to communicate in a first manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a first manner comprises:

within an uplink slot of the second SIM card, controlling the second SIM card to transmit a signal by using the main antenna;

for an odd-numbered downlink slot of the second SIM card, controlling the second SIM card to receive a signal by using the diversity antenna within the entire odd-numbered downlink slot, and controlling the first SIM card to transmit a signal by using the main antenna in a preceding time period within the odd-numbered downlink slot and to receive a signal by using the main antenna in a later time period within the odd-numbered downlink slot; and

for an even-numbered downlink slot of the second SIM card, in a preceding time period within the even-numbered downlink slot, controlling the second SIM card to receive a signal by using the diversity antenna and controlling the first SIM card to transmit a signal by using the main antenna, and in a later time period within the even-numbered downlink slot, controlling the first SIM card to receive a signal by using the main antenna, wherein

the uplink slot of the second SIM card and a downlink slot of the second SIM card are alternated.

9 . The terminal according to claim 8 , wherein the controlling the first SIM card and the second SIM card to communicate in a first manner further comprises:

for the even-numbered downlink slot of the second SIM card, when the first SIM card receives a signal by using the main antenna, controlling the first SIM card to simultaneously receive a signal by using the diversity antenna.

10 . The terminal according to claim 8 , wherein the controlling the first SIM card and the second SIM card to communicate in a first manner further comprises:

within the uplink slot of the second SIM card, controlling the first SIM card to receive a signal by using the diversity antenna within at least a preceding time period within the uplink slot.

11 . The terminal according to claim 8 , wherein the method further comprises:

obtaining a transmit power of the terminal and a receive power of the terminal;

calculating a first difference between the transmit power and an antenna isolation threshold;

calculating a second difference between the first difference and the receive power; and

adjusting a communication state of the terminal based on the second difference.

12 . The terminal according to claim 11 , wherein the adjusting a communication state of the terminal based on the second difference comprises:

when the second difference is greater than an upper limit of a preset range, adjusting the terminal to enter a dual SIM dual standby mode; and

when the second difference is within the preset range, performing at least one of reducing a modulation order of a SIM card in a receive state in the terminal and reducing a working bandwidth of a SIM card in a transmit state in the terminal.

13 . The terminal according to claim 8 , wherein the method further comprises: when the slots of the dual SIM cards are aligned, controlling the first SIM card and the second SIM card to communicate in a second manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a second manner comprises:

within a transmit slot, controlling the first SIM card and the second SIM card to transmit a signal by using the main antenna in a time division manner; and

within a receive slot, controlling the first SIM card and the second SIM card to receive a signal by using the main antenna in a time division manner and controlling the first SIM card and the second SIM card to receive a signal by using the diversity antenna in a time division manner.

14 . The terminal according to claim 8 , wherein the method further comprises: when the slots of the dual SIM cards are aligned, controlling the first SIM card and the second SIM card to communicate in a third manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a third manner comprises:

within a transmit slot, controlling the first SIM card and the second SIM card to transmit a signal by using the main antenna in a frequency division manner; and

within a receive slot, controlling the first SIM card and the second SIM card to receive a signal by using the main antenna in a frequency division manner and controlling the first SIM card and the second SIM card to receive a signal by using the diversity antenna in a frequency division manner.

15 . A non-transitory computer-readable storage medium, storing instructions that, when executed by a processor, cause the processor to perform a dual Subscriber Identity Module (SIM) communication method for a terminal, comprising:

determining whether slots of the dual SIM cards are aligned; and

when the slots of the dual SIM cards are not aligned, controlling a first SIM card and a second SIM card to communicate in a first manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a first manner comprises:

within an uplink slot of the second SIM card, controlling the second SIM card to transmit a signal by using a main antenna:

for an odd-numbered downlink slot of the second SIM card, controlling the second SIM card to receive a signal by using a diversity antenna within the entire odd-numbered downlink slot, and controlling the first SIM card to transmit a signal by using the main antenna in a preceding time period within the odd-numbered downlink slot and to receive a signal by using the main antenna in a later time period within the odd-numbered downlink slot; and

for an even-numbered downlink slot of the second SIM card, in a preceding time period within the even-numbered downlink slot, controlling the second SIM card to receive a signal by using the diversity antenna and controlling the first SIM card to transmit a signal by using the main antenna, and in a later time period within the even-numbered downlink slot, controlling the first SIM card to receive a signal by using the main antenna, wherein

the uplink slot of the second SIM card and a downlink slot of the second SIM card are alternated.

16 . The non-transitory computer-readable storage medium according to claim 15 , wherein the controlling the first SIM card and the second SIM card to communicate in a first manner further comprises:

for the even-numbered downlink slot of the second SIM card, when the first SIM card receives a signal by using the main antenna, controlling the first SIM card to simultaneously receive a signal by using the diversity antenna.

17 . The non-transitory computer-readable storage medium according to claim 15 , wherein the controlling the first SIM card and the second SIM card to communicate in a first manner further comprises:

within the uplink slot of the second SIM card, controlling the first SIM card to receive a signal by using the diversity antenna within at least a preceding time period within the uplink slot.

18 . The non-transitory computer-readable storage medium according to claim 15 , wherein the method further comprises:

obtaining a transmit power of the terminal and a receive power of the terminal;

calculating a first difference between the transmit power and an antenna isolation threshold;

calculating a second difference between the first difference and the receive power; and

adjusting a communication state of the terminal based on the second difference.

19 . The non-transitory computer-readable storage medium according to claim 18 , wherein the adjusting a communication state of the terminal based on the second difference comprises:

when the second difference is greater than an upper limit of a preset range, adjusting the terminal to enter a dual SIM dual standby mode; and

when the second difference is within the preset range, performing at least one of reducing a modulation order of a SIM card in a receive state in the terminal and reducing a working bandwidth of a SIM card in a transmit state in the terminal.

20 . The non-transitory computer-readable storage medium according to claim 15 , wherein the method further comprises: when the slots of the dual SIM cards are aligned, controlling the first SIM card and the second SIM card to communicate in a second manner, wherein

the controlling the first SIM card and the second SIM card to communicate in a second manner comprises:

within a transmit slot, controlling the first SIM card and the second SIM card to transmit a signal by using the main antenna in a time division manner, and

within a receive slot, controlling the first SIM card and the second SIM card to receive a signal by using the main antenna in a time division manner and controlling the first SIM card and the second SIM card to receive a signal by using the diversity antenna in a time division manner.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (45)