Method for time-domain granularity conversion, terminal device, and network device
View Patent ↗Provided in the embodiments of the present application are a wireless communication method, a terminal device, and a network device. A terminal device sends first information for determining a timing offset value to a network device, where the first information is a first parameter with a first time-domain granularity, and/or the first information is a second parameter with the first time-domain granularity, the first time-domain granularity being a time-domain granularity associated with a subcarrier, the first parameter being used for representing a delay of a service link estimated by the terminal device, and the second parameter being used for representing a Timing Advance (TA).
1 . A method for wireless communication, comprising:
sending, by a terminal device, first information for determining a timing offset value,
wherein the first information is a second parameter with a first time-domain granularity, the first time-domain granularity is a time-domain granularity associated with a subcarrier, and the second parameter is used for representing a Timing Advance (TA),
the method further comprising:
determining, by the terminal device, the second parameter with the first time-domain granularity according to a target parameter, wherein the target parameter comprises N TA,UE-specific , and N TA,UE-specific has a time-domain granularity T c , where N TA,UE-specific represents the delay of the service link estimated by the terminal device, and T c is a time unit specified in a protocol,
wherein determining, by the terminal device, the second parameter with the first time-domain granularity according to the target parameter comprises:
determining, by the terminal device, the second parameter with the time-domain granularity T c according to the N TA,UE-specific with the time-domain granularity T c ;
converting, by the terminal device, a time-domain granularity of the second parameter from T c into the first time-domain granularity, to obtain the second parameter with the first time-domain granularity,
wherein the first time-domain granularity is a slot, and converting, by the terminal device, the time-domain granularity of the second parameter from T c into the first time-domain granularity comprises:
converting, by the terminal device, the time-domain granularity of the second parameter from T c to the slot according to a following formula:
⌈
T
T
A
×
T
c
/
(
10
-
3
/
2
∧
μ
)
⌉
=
(
⌈
2
μ
*
1
0
3
*
T
T
A
×
T
c
⌉
)
,
where T TA is the second parameter, μ represents a subcarrier spacing configuration, and ┌ ┐ represents upward rounding.
2 . The method of claim 1 , wherein the T TA is determined by a following formula:
T
TA
=
(
N
TA
+
N
TA
,
UE
-
specific
+
N
TA
,
common
+
N
TA
,
offset
)
×
T
c
,
where N TA represents a parameter associated with TA and configured by a network device, N TA,common represents a delay between a satellite and a reference point, and N TA,offset represents a fixed offset value for calculating TA.
3 . A terminal device, comprising: a processor and a memory for storing a computer program, wherein the processor is configured to invoke and execute the computer program from the memory to cause the terminal device to:
send first information for determining a timing offset value,
wherein the first information is a second parameter with a first time-domain granularity, the first time-domain granularity is a time-domain granularity associated with a subcarrier, and the second parameter is used for representing a Timing Advance (TA),
wherein the processor is further configured to invoke and execute the computer program from the memory to cause the terminal device to:
determine the second parameter with the first time-domain granularity according to a target parameter, wherein the target parameter comprises N TA,UE-specific , and N TA,UE-specific has a time-domain granularity T c , where N TA,UE-specific represents the delay of the service link estimated by the terminal device, and T c is a time unit specified in a protocol,
wherein the processor is specifically configured to invoke and execute the computer program from the memory to cause the terminal device to:
determine the second parameter with the time-domain granularity T c according to the N TA,UE-specific with the time-domain granularity T c ;
convert a time-domain granularity of the second parameter from T c into the first time-domain granularity, to obtain the second parameter with the first time-domain granularity,
wherein the processor is specifically configured to invoke and execute the computer program from the memory to cause the terminal device to:
convert the time-domain granularity of the second parameter from T c to the slot according to a following formula:
⌈
T
T
A
×
T
c
/
(
10
-
3
/
2
∧
μ
)
⌉
=
(
⌈
2
μ
*
1
0
3
*
T
T
A
×
T
c
⌉
)
,
where T TA is the second parameter, μ represents a subcarrier spacing configuration, and ┌ ┐ represents upward rounding.
4 . The terminal device of claim 3 , wherein the T TA is determined by following formula:
T
TA
=
(
N
TA
+
N
TA
,
UE
-
specific
+
N
TA
,
common
+
N
TA
,
offset
)
×
T
c
,
where N TA represents a parameter associated with TA and configured by a network device, N TA,common represents a delay between a satellite and a reference point, and N TA,offset represents a fixed offset value for calculating TA.
5 . A network device, comprising: a processor and a memory for storing a computer program, wherein the processor is configured to invoke and execute the computer program from the memory to cause the network device to:
receive first information sent by a terminal device, wherein the first information is used for determining a timing offset value,
wherein the first information is a second parameter with a first time-domain granularity, the first time-domain granularity is a time-domain granularity associated with a subcarrier, and the second parameter is used for representing a Timing Advance (TA),
wherein the second parameter with the first time-domain granularity is determined based on a target parameter, wherein the target parameter comprises N TA,UE-specific , and N TA,UE-specific has a time-domain granularity T c , where N TA,UE-specific represents the delay of the service link estimated by the terminal device, and T c is a time unit specified in a protocol,
wherein the second parameter with the first time-domain granularity is determined based on the second parameter with the time-domain granularity T c , and the second parameter with the time-domain granularity T c is determined based on the N TA,UE-specific with the time-domain granularity T c ,
wherein the first time-domain granularity is a slot, and the second parameter with the first time-domain granularity is determined based on a following formula:
⌈
T
T
A
×
T
c
/
(
10
-
3
/
2
∧
μ
)
⌉
=
(
⌈
2
μ
*
1
0
3
*
T
T
A
×
T
c
⌉
)
,
where T TA is the second parameter, μ represents a subcarrier spacing configuration and ┌ ┐ represents upward rounding.
6 . The network device of claim 5 , wherein the T TA is determined by following formula:
T
TA
=
(
N
TA
+
N
TA
,
UE
-
specific
+
N
TA
,
common
+
N
TA
,
offset
)
×
T
c
,
where N TA represents a parameter associated with TA and configured by a network device, N TA,common represents a delay between a satellite and a reference point, and N TA,offset represents a fixed offset value for calculating TA.