Granted Patent B2

US 12,634,170 · App. 18/553,100 · Granted May 19, 2026

Inventor: Xuemei Qiao (Beijing, CN)

Assignee: Beijing Xiaomi Mobile Software Co., Ltd.

H04L25/0204

Abstract

Claims (72)

1 . An indication method, performed by a terminal, comprising:

determining a first message, wherein the first message indicates a configuration parameter of joint channel estimation of a network device, the configuration parameter comprises indication information and at least one of a parameter set or a fixed parameter value for determining a length of a Time Domain Window (TDW) of the joint channel estimation, and the indication information indicates that the joint channel estimation is enabled;

based on the configuration parameter, determining a first parameter in the parameter set or determining the fixed parameter value as the first parameter; and

determining the length of the TDW of the joint channel estimation based on the first parameter,

wherein determining the length of the TDW of the joint channel estimation based on the first parameter includes:

determining a transmission time period corresponding to a number of repetitions,

obtaining a second parameter by performing calculation on the transmission time period based on a predefined operation rule, and

determining the second parameter as the length of the TDW for performing the joint channel estimation.

2 . The indication method according to claim 1 , wherein each parameter in the parameter set or the fixed parameter value is determined based on a number of repetitions.

3 . The indication method according to claim 1 wherein determining the length of the TDW of the joint channel estimation based on the first parameter includes:

determining the first parameter as the length of the TDW of the joint channel estimation.

4 . The indication method according to claim 3 , wherein the first parameter is determined as the length of the TDW of the joint channel estimation, the method further comprising one of:

determining the transmission time period corresponding to the number of repetitions, and performing the joint channel estimation based on a first strategy in response to the transmission time period being less than the first parameter; or

determining a transmission time period corresponding to a number of blind retransmissions, and performing the joint channel estimation based on a second strategy in response to a remainder being obtained by dividing the transmission time period by the first parameter.

5 . The indication method according to claim 4 , wherein performing the joint channel estimation based on the first strategy comprises one of:

canceling the joint channel estimation; or

re-determining the length of the TDW of the joint channel estimation based on a predefined rule, and performing the joint channel estimation based on the re-determined length of the TDW of the joint channel estimation.

6 . The indication method according to claim 4 , wherein performing the joint channel estimation based on the second strategy comprises one of:

canceling the joint channel estimation;

canceling a part of the joint channel estimation within the obtained remainder;

re-determining the parameter based on a predefined rule, and performing the joint channel estimation based on the re-determined parameter; or

re-determining a time period corresponding to a remaining number of blind retransmissions as the length of the TDW based on a predefined rule, and performing the joint channel estimation based on the re-determined length of the TDW.

7 . The indication method according to claim 1 , wherein the predefined operation rule is a quotient operation; and

obtaining the second parameter by performing calculation on the transmission time period based on the predefined operation rule comprises:

determining the transmission time period corresponding to the number of repetitions, and determining a quotient value obtained by dividing the transmission time period by a predefined parameter value as the second parameter.

8 . The indication method according to claim 7 , wherein the second parameter is determined as the length of the TDW of the joint channel estimation, the method further comprising one of:

performing the joint channel estimation based on a third strategy in response to the second parameter being less than a first value; or

performing the joint channel estimation based on a fourth strategy in response to the transmission time period being not divisible by the second parameter.

9 . The indication method according to claim 8 , wherein performing the joint channel estimation based on the third strategy comprises at least one of:

canceling the joint channel estimation;

re-determining the second parameter based on a predefined rule; or

re-determining the first parameter.

10 . The indication method according to claim 8 , wherein performing the joint channel estimation based on the fourth strategy comprises at least one of:

determining a lower bound of a time granularity for performing the joint channel estimation;

determining an integer multiple of the quotient value of the second parameter;

re-determining the second parameter based on a predefined rule; or

canceling the joint channel estimation.

11 . The indication method according to claim 1 , further comprising:

receiving a second message in response to the network device scheduling the terminal to perform MSG3 repetition, wherein the second message indicates a configuration parameter for the network device to perform the joint channel estimation during a repetition process to the terminal,

wherein the configuration parameter in the second message and the configuration parameter in the first message are the same or partially the same.

12 . The indication method according to claim 1 , wherein the configuration parameter comprises enabling the joint channel estimation; and the first message is determined based on at least one of: remaining minimum system information (RMSI); a random access response (RAR); downlink control information (DCI) with cyclic redundancy check (CRC) scrambled by a random access radio network temporary identifier (RA-RNTI); or DCI with CRC scrambled by a temporary cell radio network temporary identifier (TC-RNTI);

wherein the configuration parameter comprises the length of the TDW of the joint channel estimation; and the first message is determined based on at least one of: a predefined rule/communication protocol; RMSI; DCI with CRC scrambled by a RA-RNTI; DCI with CRC scrambled by a TC-RNTI; or uplink grant information in an RAR; or

wherein the configuration parameter comprises enabling the joint channel estimation and the length of the TDW of the joint channel estimation; and the first message is determined based on at least one of: a predefined rule/communication protocol; DCI with CRC scrambled by a RA-RNTI; uplink grant information carried in an RAR; or DCI with CRC scrambled by a TC-RNTI.

13 . An indication method, performed by a network device, comprising:

determining a first message, wherein the first message indicates a configuration parameter for the network device to perform joint channel estimation, the configuration parameter comprises indication information and at least one of a parameter set or a fixed parameter value for determining a length of a Time Domain Window (TDW) of the joint channel estimation, and the indication information indicates that the joint channel estimation is enabled,

wherein the configuration parameter is used for determining a first parameter in the parameter set or determining the fixed parameter value as the first parameter,

the first parameter is used for determining the length of the TDW of the joint channel estimation, and

determining the length of the TDW of the joint channel estimation includes:

determining a transmission time period corresponding to a number of repetitions,

obtaining a second parameter by performing calculation on the transmission time period based on a predefined operation rule, and

determining the second parameter as the length of the TDW for performing the joint channel estimation.

14 . The indication method according to claim 13 , wherein each parameter in the parameter set or the fixed parameter value is determined based on a number of repetitions; or

the method further comprises:

based on the configuration parameter, determining a first parameter in the parameter set or determining the fixed parameter value as the first parameter; and

determining the length of the TDW of the joint channel estimation based on the first parameter.

15 . The indication method according to claim 13 , further comprising:

receiving assistance information for the network device to determine the configuration parameter for performing the joint channel estimation.

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 message, wherein the first message indicates a configuration parameter of joint channel estimation of a network device, the configuration parameter comprises indication information and at least one of a parameter set or a fixed parameter value for determining a length of a Time Domain Window (TDW) of the joint channel estimation, and the indication information indicates that the joint channel estimation is enabled;

based on the configuration parameter, determine a first parameter in the parameter set or determining the fixed parameter value as the first parameter; and

determine the length of the TDW of the joint channel estimation based on the first parameter,

wherein determining the length of the TDW of the joint channel estimation based on the first parameter includes:

determining a transmission time period corresponding to a number of repetitions,

obtaining a second parameter by performing calculation on the transmission time period based on a predefined operation rule, and

determining the second parameter as the length of the TDW for performing the joint channel estimation.

17 . A network device, comprising:

a processor; and

a memory for storing instructions executable by the processor;

wherein the processor is configured to perform the indication method according to claim 13 .

Assignments (1)

Continuity (1)

References Cited (43)