Granted Patent B2

US 12,634,063 · App. 17/377,554 · Granted May 19, 2026

Inventors: Xiaohang Chen (Guangdong, CN); Peng Sun (Guangdong, CN)

Assignee: VIVO MOBILE COMMUNICATION CO., LTD.

H04L5/0048H04W48/10H04W74/002H04W74/004H04W74/0833H04W74/0838

Abstract

Claims (46)

1 . A random access transmission method, applied to a terminal side, comprising:

obtaining a demodulation reference signal (DMRS) sequence generation parameter of a physical uplink shared channel (PUSCH); and

sending a random access message to a network device according to the DMRS sequence generation parameter; wherein the random access message corresponds to the PUSCH and a physical random access channel (PRACH);

wherein the DMRS sequence generation parameter is determined according to a PRACH resource, and the DMRS sequence generation parameter comprises: a scrambling initialization parameter;

wherein the sending the random access message to the network device according to the DMRS sequence generation parameter comprises:

mapping between the DMRS sequence generation parameter and a corresponding random access resource according to a mapping order, and sending the random access message; wherein the mapping order comprises at least one of: a code domain mapping order, a frequency domain mapping order, or a time domain mapping order.

2 . The random access transmission method according to claim 1 , wherein the DMRS sequence generation parameter further comprises: a scrambling identifier parameter;

the sending the random access message to the network device according to the DMRS sequence generation parameter comprises:

determining a DMRS sequence of the PUSCH according to the DMRS sequence generation parameter; and

sending the random access message according to the DMRS sequence.

3 . The random access transmission method according to claim 1 , wherein the DMRS sequence generation parameter is determined according to at least one of the following information of the PRACH resource:

a random access channel occasion (RO);

a random access preamble; or

a random access radio network temporary identifier (RA-RNTI).

4 . The random access transmission method according to claim 3 , wherein the DMRS sequence generation parameter is determined according to index information of the random access preamble.

5 . The random access transmission method according to claim 1 , wherein the DMRS sequence generation parameter is configured by the network device through a system broadcast message.

6 . The random access transmission method according to claim 5 , wherein the system broadcast message comprises: configuration information of a DMRS sequence generation set.

7 . The random access transmission method according to claim 6 , wherein the DMRS sequence generation parameter is a parameter associated with the following associated parameters in the DMRS sequence generation parameter set:

an RO corresponding to a random access process;

index information of the SSB associated with the RO; and

index information of the random access preamble.

8 . The random access transmission method according to claim 1 , wherein the DMRS sequence generation parameter is further determined according to a PUSCH resource.

9 . The random access transmission method according to claim 8 , wherein the DMRS sequence generation parameter is determined according to a PUSCH occasion corresponding to the PUSCH resource.

10 . A terminal, comprising a processor, a memory, and a program stored in the memory and running on the processor, wherein when the program is executed by the processor, the following steps are performed:

obtaining a demodulation reference signal (DMRS) sequence generation parameter of a physical uplink shared channel (PUSCH); and

sending a random access message to a network device according to the DMRS sequence generation parameter; wherein the random access message corresponds to the PUSCH and a physical random access channel (PRACH);

wherein the DMRS sequence generation parameter is determined according to a PRACH resource, and the DMRS sequence generation parameter comprises a scrambling initialization parameter;

wherein sending the random access message to the network device according to the DMRS sequence generation parameter comprises:

mapping between the DMRS sequence generation parameter and a corresponding random access resource according to a mapping order, and sending the random access message; wherein the mapping order comprises at least one of: a code domain mapping order, a frequency domain mapping order, or a time domain mapping order.

11 . The terminal according to claim 10 , wherein the DMRS sequence generation parameter further comprises: a scrambling identifier parameter;

the sending the random access message to the network device according to the DMRS sequence generation parameter comprises:

determining a DMRS sequence of the PUSCH according to the DMRS sequence generation parameter; and

sending the random access message according to the DMRS sequence.

12 . The terminal according to claim 10 , wherein the DMRS sequence generation parameter is further determined according to a PUSCH resource.

13 . The terminal according to claim 12 , wherein the DMRS sequence generation parameter is determined according to a PUSCH occasion corresponding to the PUSCH resource.

14 . The terminal according to claim 10 , wherein the DMRS sequence generation parameter is determined according to at least one of the following information of the PRACH resource:

a random access channel occasion (RO);

a random access preamble; or

a random access radio network temporary identifier (RA-RNTI).

15 . The terminal according to claim 14 , wherein the DMRS sequence generation parameter is determined according to index information of the random access preamble.

16 . The terminal according to claim 10 , wherein the DMRS sequence generation parameter is configured by the network device through a system broadcast message.

17 . The terminal according to claim 16 , wherein the system broadcast message comprises: configuration information of a DMRS sequence generation set.

18 . The terminal according to claim 17 , wherein the DMRS sequence generation parameter is a parameter associated with the following associated parameters in the DMRS sequence generation parameter set:

an RO corresponding to a random access process;

index information of the SSB associated with the RO; and

index information of the random access preamble.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (30)