Granted Patent B2

US 12,634,928 · App. 18/351,050 · Granted May 19, 2026

Inventors: Rongrong Sun (Guangdong, CN); Peng Sun (Guangdong, CN); Hao Liu (Guangdong, CN); Yuan Shi (Guangdong, CN)

Assignee: VIVO MOBILE COMMUNICATION CO., LTD.

H04W72/1268H04L5/0048H04W72/23

Abstract

Claims (83)

1 . A physical uplink shared channel (PUSCH) transmission method, comprising:

receiving, by a terminal from a network side, signaling of a radio resource control (RRC) layer, the signaling of the RRC layer comprising the maximum number of phase tracking reference signal (PTRS) ports and the maximum number of transmission ranks;

determining, by the terminal based on the maximum number of PTRS ports and the maximum number of transmission ranks, indication information in a phase tracking reference signal-demodulation reference signal (PTRS-DMRS) association field of first indication information;

determining, by the terminal based on the indication information in the PTRS-DMRS association field, a target transmission resource configuration from at least one transmission resource configuration; and

performing, by the terminal, PUSCH transmission based on the target transmission resource configuration.

2 . The PUSCH transmission method according to claim 1 , wherein the determining, by the terminal based on the indication information in the PTRS-DMRS association field, the target transmission resource configuration from at least one transmission resource configuration comprises:

determining, based on the indication information in the PTRS-DMRS association field, a target association relationship in at least one association relationship between PTRS ports and DMRS transmit ports; wherein

the DMRS transmit port is associated with a sounding reference signal (SRS) resource or SRS resource group for PUSCH transmission.

3 . The PUSCH transmission method according to claim 1 , wherein the determining, by the terminal based on the maximum number of PTRS ports and the maximum number of transmission ranks, indication information in a phase tracking reference signal-demodulation reference signal (PTRS-DMRS) association field of first indication information comprises:

determining, based on the maximum number of PTRS ports and the maximum number of transmission ranks, the number of bits of the indication information in the PTRS-DMRS association field of the first indication information; and

determining, based on the number of bits of the indication information in the PTRS-DMRS association field, a value range of the indication information in the PTRS-DMRS association field.

4 . The PUSCH transmission method according to claim 3 , wherein different values in the value range of the indication information in the PTRS-DMRS association field of the first indication information are in one-to-one correspondence to the at least one association relationship between PTRS ports and DMRS transmit ports.

5 . The PUSCH transmission method according to claim 3 , wherein the determining, based on the maximum number of PTRS ports and the maximum number of transmission ranks, the number of bits of the indication information in the PTRS-DMRS association field of the first indication information comprises:

in a case that the maximum number of PTRS ports is 1 or 2 and the maximum number of transmission ranks is 2, determining that the number of bits of the indication information in the PTRS-DMRS association field is 2 bits;

in a case that the maximum number of PTRS ports is 1 or 2 and the maximum number of transmission ranks is 3 or 4, determining that the number of bits of the indication information in the PTRS-DMRS association field is 4 bits.

6 . The PUSCH transmission method according to claim 5 , wherein a value of a most significant bit (MSB) for the indication information in the PTRS-DMRS association field comprises 0 or 1; wherein

in a case that the value of the most significant bit (MSB) is 0, the target association relationship comprises: PTRS port 0 is associated with the 1st scheduled DM-RS port associated with a first SRS resource or SRS resource group; and

in a case that the value of the most significant bit (MSB) is 1, the target association relationship comprises: PTRS port 0 is associated with the 2nd scheduled DM-RS port associated with the first SRS resource or SRS resource group.

7 . The PUSCH transmission method according to claim 5 , wherein a value of a least significant bit (LSB) for the indication information in the PTRS-DMRS association field comprises 0 or 1; wherein

in a case that the value of the least significant bit (LSB) is 0, the target association relationship comprises: PTRS port 0 is associated with the 1st scheduled DM-RS port associated with a second SRS resource or SRS resource group; and

in a case that the value of the least significant bit (LSB) is 1, the target association relationship comprises: PTRS port 0 is associated with the 2nd scheduled DM-RS port associated with the second SRS resource or SRS resource group.

8 . The PUSCH transmission method according to claim 3 , wherein the determining, based on the maximum number of PTRS ports and the maximum number of transmission ranks, the number of bits of the indication information in the PTRS-DMRS association field of the first indication information comprises:

in a case that the maximum number of PTRS ports is 1 and the maximum number of transmission ranks is 3 or 4, determining that the number of bits of the indication information in the PTRS-DMRS association field is 4 bits.

9 . The PUSCH transmission method according to claim 8 , wherein a value of a most significant bit (MSB) for the indication information in the PTRS-DMRS association field is 0, 1, 2, or 3; wherein

in a case that the value of the most significant bit (MSB) is 0, the target association relationship comprises: PTRS port 0 is associated with the 1st scheduled DM-RS port associated with a first SRS resource or SRS resource group;

in a case that the value of the most significant bit (MSB) is 1, the target association relationship comprises: PTRS port 0 is associated with the 2nd scheduled DM-RS port associated with the first SRS resource or SRS resource group;

in a case that the value of the most significant bit (MSB) is 2, the target association relationship comprises: PTRS port 0 is associated with the 3rd scheduled DM-RS port associated with the first SRS resource or SRS resource group; and

in a case that the value of the most significant bit (MSB) is 3, the target association relationship comprises: PTRS port 0 is associated with the 4th scheduled DM-RS port associated with the first SRS resource or SRS resource group.

10 . The PUSCH transmission method according to claim 8 , wherein a value of a least significant bit (LSB) for the indication information in the PTRS-DMRS association field is 0, 1, 2, or 3; wherein

in a case that the value of the least significant bit (LSB) is 0, the target association relationship comprises: TRS port 0 is associated with the 1st scheduled DM-RS port associated with a second SRS resource or SRS resource group;

in a case that the value of the least significant bit (LSB) is 1, the target association relationship comprises: TRS port 0 is associated with the 2nd scheduled DM-RS port associated with the second SRS resource or SRS resource group;

in a case that the value of the least significant bit (LSB) is 2, the target association relationship comprises: PTRS port 0 is associated with the 3rd scheduled DM-RS port associated with the second SRS resource or SRS resource group; and

in a case that the value of the least significant bit (LSB) is 3, the target association relationship comprises: PTRS port 0 is associated with the 4th scheduled DM-RS port associated with the second SRS resource or SRS resource group.

11 . The PUSCH transmission method according to claim 3 , wherein the determining, based on the maximum number of PTRS ports and the maximum number of transmission ranks, the number of bits of the indication information in the PTRS-DMRS association field of the first indication information comprises:

in a case that the maximum number of PTRS ports is 2 and the maximum number of transmission ranks is 3 or 4, determining that the number of bits of the indication information in the PTRS-DMRS association field is 4 bits.

12 . The PUSCH transmission method according to claim 11 , wherein a value of a first bit of the indication information in the PTRS-DMRS association field comprises 0 or 1; wherein

in a case that the value of the first bit is 0, the target association relationship comprises: shared PTRS port 0 is associated with the 1st scheduled DM-RS port associated with a first SRS resource or SRS resource group; and

in a case that the value of the first bit is 1, the target association relationship comprises: shared PTRS port 0 is associated with the 2nd scheduled DM-RS port associated with the first SRS resource or SRS resource group.

13 . The PUSCH transmission method according to claim 11 , wherein a value of a second bit of the indication information in the PTRS-DMRS association field comprises 0 or 1; wherein

in a case that the value of the second bit is 0, the target association relationship comprises: shared PTRS port 1 is associated with the 1st scheduled DM-RS port associated with a first SRS resource or SRS resource group; and

in a case that the value of the second bit is 1, the target association relationship comprises: shared PTRS port 1 is associated with the 2nd scheduled DM-RS port associated with the first SRS resource or SRS resource group.

14 . The PUSCH transmission method according to claim 11 , wherein a value of a third bit of the indication information in the PTRS-DMRS association field comprises 0 or 1; wherein

in a case that the value of the third bit is 0, the target association relationship comprises: shared PTRS port 0 is associated with the 1st scheduled DM-RS port associated with a second SRS resource or SRS resource group; and

in a case that the value of the third bit is 1, the target association relationship comprises: shared PTRS port 0 is associated with the 2nd scheduled DM-RS port associated with the second SRS resource or SRS resource group.

15 . The PUSCH transmission method according to claim 11 , wherein a value of a fourth bit of the indication information in the PTRS-DMRS association field comprises 0 or 1; wherein

in a case that the value of the fourth bit is 0, the target association relationship comprises: shared PTRS port 1 is associated with the 1st scheduled DM-RS port associated with a second SRS resource or SRS resource group; and

in a case that the value of the fourth bit is 1, the target association relationship comprises: shared PTRS port 1 is associated with the 2nd scheduled DM-RS port associated with the second SRS resource or SRS resource group.

16 . The PUSCH transmission method according to claim 1 , wherein the first indication information further comprises at least one of the following:

SRS resource indication information; or

precoding matrix indicator (TPMI) indication information.

17 . The PUSCH transmission method according to claim 16 , wherein the SRS resource indication information comprises a codepoint value in an SRI field; and

the determining, by a terminal based on first indication information that is received, a target transmission resource configuration indicated by the first indication information from at least one transmission resource configuration comprises:

determining, based on the codepoint value in the SRI field of DCI, target SRI field codepoint information in at least one piece of SRI field codepoint information; wherein

the SRI field codepoint information is associated with at least one SRS resource, or the SRI field codepoint information is associated with at least one SRS resource group.

18 . The PUSCH transmission method according to claim 1 , wherein in a case that the first indication information comprises TPMI indication information, performing PUSCH transmission based on the target transmission resource configuration comprises:

performing transmission based on a first transmission mode or a second transmission mode by using one or more target TPMIs indicated by the TPMI indication information;

wherein the first transmission mode comprises:

a first TPMI in the one or more target TPMIs is used for transmission for all PUSCH transmission occasions associated with different SRS resources or SRS resource groups;

wherein the first TPMI is determined based on the TPMI indication information; wherein

the TPMI indication information comprises:

TPMI field related information in DCI; and/or

signaling sent by an RRC layer or a MAC layer;

wherein the second transmission mode comprises:

different TPMIs in the one or more target TPMIs are used for transmission for PUSCH transmission occasions associated with different SRS resources or SRS resource groups; wherein

the SRS resources or SRS resource groups associated with the PUSCH transmission occasions are in one-to-one correspondence to the TPMIs used for the PUSCH transmission occasions; or

the TPMIs used for the PUSCH transmission occasions associated with different SRS resources or SRS resource groups are determined based on the TPMI indication information; wherein

the TPMI indication information comprises:

TPMI field related information in DCI; and/or

signaling sent by an RRC layer or a MAC layer.

19 . A physical uplink shared channel (PUSCH) transmission method, comprising:

sending, by a network side, signaling of a radio resource control (RRC) layer to a terminal, the signaling of the RRC layer comprising the maximum number of phase tracking reference signal-demodulation reference signal (PTRS) ports and the maximum number of transmission ranks; and

sending, by the network side, first indication information to the terminal, the first indication information comprising indication information in a phase tracking reference signal-demodulation reference signal (PTRS-DMRS) association field;

wherein the maximum number of PTRS ports and the maximum number of transmission ranks is used to determine the indication information in the PTRS-DMRS association field, and the indication information in the PTRS-DMRS association field is used to determine a target transmission resource configuration for PUSCH transmission.

20 . A communications device, comprising a processor, a memory, and instructions stored in the memory and capable of running on the processor, wherein,

in a case that the communications device is a terminal, the instructions, when being executed by the processor, implements:

receiving, from a network side, signaling of a radio resource control (RRC) layer, the signaling of the RRC layer comprising the maximum number of phase tracking reference signal (PTRS) ports and the maximum number of transmission ranks;

determining, based on the maximum number of PTRS ports and the maximum number of transmission ranks, indication information in a phase tracking reference signal-demodulation reference signal (PTRS-DMRS) association field of first indication information;

determining, based on the indication information in the PTRS-DMRS association field, a target transmission resource configuration from at least one transmission resource configuration; and

performing PUSCH transmission based on the target transmission resource configuration;

in a case that the communications device is a network side device, the instructions, when being executed by the processor, implements:

sending signaling of a radio resource control (RRC) layer to a terminal, the signaling of the RRC layer comprising the maximum number of phase tracking reference signal (PTRS) ports and the maximum number of transmission ranks; and

sending first indication information to the terminal, the first indication information comprising indication information in a phase tracking reference signal-demodulation reference signal (PTRS-DMRS) association field;

wherein the maximum number of PTRS ports and the maximum number of transmission ranks is used to determine the indication information in the PTRS-DMRS association field, and the indication information in the PTRS-DMRS association field is used to determine a target transmission resource configuration for PUSCH transmission.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (26)