Granted Patent B2

US 12,557,032 · App. 18/026,315 · Granted Feb 17, 2026

Inventor: Yuanyuan Li (Beijing, CN)

Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

H04W52/146H04J13/0003H04L5/0051

Abstract

Claims (34)

1 . A method for sending a Demodulation Reference Signal (DMRS), performed by a terminal, the method comprising:

determining a first sending power for sending a first DMRS on a first frequency resource based on control information from a network device, wherein the first frequency resource is a frequency resource correspond to a first Code Division Multiplexing (CDM) group among frequency resources correspond to a first symbol, the first sending power occupies at least part of a second sending power on a second frequency resource other than the first frequency resource among the frequency resources correspond to the first symbol, and the second frequency resource is not configured for sending a second DMRS; and

sending the first DMRS on the first frequency resource based on the first sending power;

wherein the first sending power occupies XdB of the second sending power, and X is a default value or a configured value configured by the network device; and wherein for DMRS type 1, a value of the X is selected from 0.5, 1, 2, and 3, and for DMRS type 2, a value of the X is selected from 0.5, 1, 2, 3, and 4.77.

2 . The method of claim 1 , wherein the control information is configured to instruct the terminal to determine the first sending power to occupy the second sending power on the second frequency resource.

3 . The method of claim 1 , wherein the control information indicates a part of a plurality of CDM groups corresponding to the first symbol configured for sending DMRS, wherein the first CDM group belongs to the part of the plurality of CDM groups.

4 . The method of claim 3 , wherein the part of the plurality of CDM groups is one CDM group.

5 . The method of claim 1 , wherein the default value is a maximum value within a value range of the configured value.

6 . The method of claim 1 , wherein the control information comprises the configured value.

7 . The method of claim 1 , further comprising:

sending data on frequency resources other than the first frequency resource among the frequency resources corresponding to the first symbol based on a remaining second sending power obtained after the at least part of the second sending power is occupied.

8 . The method of claim 1 , further comprising

sending no data on frequency resources other than the first frequency resources among the frequency resources corresponding to the first symbol.

9 . The method of claim 1 , wherein the first sending power is greater than a remaining second sending power obtained after the at least part of the second sending power is occupied.

10 . A method for receiving a Demodulation Reference Signal (DMRS), comprising:

sending control information; and

receiving a first DMRS at a network device from a terminal;

wherein the first DMRS is sent by the terminal with a first sending power on a first frequency resource; the first sending power is determined by the terminal based on the control information; the first frequency resource is a frequency resource correspond to a first Code Division Multiplexing (CDM) group among frequency resources corresponding to a first symbol; the first sending power occupies at least part of second sending power on a second frequency resource other than the first frequency resource among the frequency resources corresponding to the first symbol; and the second frequency resource is not configured for sending a second DMRS,

wherein the first sending power occupies XdB of the second sending power, and X is a default value or a configured value configured by the network device; and wherein for DMRS type 1, a value of the X is selected from 0.5, 1, 2, and 3, and for DMRS type 2, a value of the X is selected from 0.5, 1, 2, 3, and 4.77.

11 . The method of claim 10 , wherein the control information is configured to instruct the terminal to determine the first sending power to occupy the second sending power on the second frequency resource.

12 . The method of claim 10 , wherein the control information is configured to indicate a part of a plurality of CDM groups corresponding to the first symbol configured for sending DMRS, and the first CDM group belongs to the part of the plurality of CDM groups.

13 . The method of claim 10 , wherein the default value is a maximum value within a value range of the configured value.

14 . The method of claim 10 , wherein the first sending power is greater than a remaining second sending power obtained after the at least part of the second sending power is occupied.

15 . A network device, comprising:

a processor; and

a memory for storing instructions executable by the processor;

wherein the processor is configured to load and execute the instructions to implement the method of claim 10 .

16 . A terminal, comprising:

a processor; and

a memory for storing instructions executable by the processor;

wherein the processor is configured to:

determine a first sending power for sending a first DMRS on a first frequency resource based on control information from a network device, wherein the first frequency resource is a frequency resource corresponding to a first Code Division Multiplexing (CDM) group among frequency resources corresponding to a first symbol, the first sending power occupies at least part of a second sending power on a second frequency resource other than the first frequency resource among the frequency resources corresponding to the first symbol, and the second frequency resource is not configured for sending a second DMRS; and

send the first DMRS on the first frequency resource based on the first sending power;

wherein the first sending power occupies XdB of the second sending power, and X is a default value or a configured value configured by the network device; and wherein for DMRS type 1, a value of the X is selected from 0.5, 1, 2, and 3, and for DMRS type 2, a value of the X is selected from 0.5, 1, 2, 3, and 4.77.

Assignments (1)

Continuity (1)

References Cited (14)