Position determination method and device, and computer storage medium
The present disclosure discloses a method and device for determining a position, and a computer storage medium. The method includes that a first power value for a SYNC-NL segment within a DwPTS, a second power value for a first GP segment which precedes the SYNC-NL segment, a third power value for a second GP segment which follows the SYNC-NL segment, and a fourth power value for a time slot 0 are acquired; an eigenvalue of the DwPTS is calculated according to the first power value, the second power value, the third power value and the fourth power value; and the position of the DwPTS is determined according to the eigenvalue.
1. A method for determining a position, comprising:
acquiring a first power value for a Synchronous Downlink (SYNC-DL) segment within a Downlink Pilot Time Slot (DwPTS), a second power value for a first Guard Period (GP) segment which precedes the SYNC-DL segment, a third power value for a second GP segment which follows the SYNC-DL segment, and a fourth power value for a time slot 0 ;
calculating an eigenvalue of the DwPTS according to the first power value, the second power value, the third power value and the fourth power value; and
determining the position of the DwPTS according to the eigenvalue;
wherein the calculation of the eigenvalue of the DwPTS according to the first power value, the second power value, the third power value and the fourth power value is implemented by means of a following formula:
eigenvalue
=
(
first
power
value
+
fourth
power
value
)
/
2
second
power
value
+
third
power
value
.
2. The method according to claim 1 , wherein acquiring the first power value for the SYNC-DL segment comprises:
eliminating spikes and glitches within the DwPTS; and
acquiring the first power value for the SYNC-DL segment within the DwPTS from which the spikes and the glitches are eliminated.
3. The method according to claim 2 , wherein acquiring the first power value for the SYNC-DL segment within the DwPTS from which the spikes and the glitches are eliminated comprises:
setting a designated number of power points in the SYNC-DL segment, and calculating each of the power points to obtain a designated number of power values; and
sorting the designated number of power values by size, and multiplying a mid-sized power value by the designated number to obtain the first power value.
4. The method according to claim 1 , wherein the calculation of the eigenvalue of the DwPTS according to the first power value, the second power value, the third power value and the fourth power value is implemented by means of a following formula:
eigenvalue
=
min
(
first
power
value
,
fourth
power
value
)
+
set
constant
max
(
second
power
value
,
third
power
value
)
×
2
+
set
constant
.
5. The method according to claim 1 , wherein acquiring the fourth power value for the time slot 0 comprises:
acquiring the fourth power value for a basic code part of the time slot 0 .
6. The method according to claim 1 , further comprising: setting a gap slot between the SYNC-DL segment and the first GP segment.
7. A device for determining a position, wherein the device comprises a processor, the processor is configured to:
acquire a first power value for a Synchronous Downlink (SYNC-DL) segment within a Downlink Pilot Time Slot (DwPTS), a second power value for a first Guard Period (GP) segment which precedes the SYNC-DL segment, a third power value for a second GP segment which follows the SYNC-DL segment, and a fourth power value for a time slot 0 ;
calculate an eigenvalue of the DwPTS according to the first power value, the second power value, the third power value and the fourth power value; and
determine the position of the DwPTS according to the eigenvalue;
wherein the processor is further configured to calculate the eigenvalue of the DwPTS according to the first power value, the second power value, the third power value and the fourth power value is implemented by means of a following formula:
eigenvalue
=
(
first
power
value
+
fourth
power
value
)
/
2
second
power
value
+
third
power
value
.
8. The device according to claim 7 , wherein the processor is further configured to:
eliminate spikes and glitches within the DwPTS; and
acquire the first power value for the SYNC-DL segment within the DwPTS from which the spikes and the glitches are eliminated.
9. The device according to claim 8 , wherein the processor is further configured to:
set a designated number of power points in the SYNC-DL segment, and calculate each of the power points to obtain a designated number of power values; and
sort the designated number of power values by size, and multiply a mid-sized power value by the designated number to obtain the first power value.
10. The device according to claim 7 , wherein the processor is further configured to implement the calculation operation of the eigenvalue by means of a following formula:
eigenvalue
=
min
(
first
power
value
,
fourth
power
value
)
+
set
constant
max
(
second
power
value
,
third
power
value
)
×
2
+
set
constant
.
11. The device according to claim 7 , wherein the processor is
further configured to acquire the fourth power value for a basic code part of the time slot 0 .
12. A non-transitory computer storage medium comprising a set of instructions which, when executed, cause at least one processor to execute a method for determining a position, wherein the method comprises:
acquiring a first power value for a Synchronous Downlink (SYNC-DL) segment within a Downlink Pilot Time Slot (DwPTS), a second power value for a first Guard Period (GP) segment which precedes the SYNC-DL segment, a third power value for a second GP segment which follows the SYNC-DL segment, and a fourth power value for a time slot 0 ;
calculating an eigenvalue of the DwPTS according to the first power value, the second power value, the third power value and the fourth power value; and
determining the position of the DwPTS according to the eigenvalue;
wherein the calculation of the eigenvalue of the DwPTS according to the first power value, the second power value, the third power value and the fourth power value is implemented by means of a following formula:
eigenvalue
=
(
first
power
value
+
fourth
power
value
)
/
2
second
power
value
+
third
power
value
.