Data transmission method and apparatus and computer storage medium
Disclosed are a data transmission method and apparatus and a computer storage medium, used to arrive at the mapping a data layer, based on a predefined DMRS port ordering rule, onto the DMRS port used during transmission to transmit the data layer. The present application provides a data transmission method, comprising: determining a predefined demodulation reference signal (DMRS) port ordering rule; and mapping, according to the predefined DMRS port ordering rule, a data layer onto the DMRS port used during transmission to send the data layer to a terminal.
1. A non-transitory computer storage medium wherein, the computer storage medium stores computer executable instructions which are configured to cause the computer to:
determine a preset Demodulation Reference Signal, DMRS, port ordering rule; and
map a data layer onto a DMRS port for transmission according to the preset DMRS port ordering rule, and sending the data layer to a terminal;
wherein, the DMRS port ordering rule is preset in one of following ways:
way 1-3:
two steps as follows are comprised for dual-codeword transmission:
step 1: grouping DMRS ports among DMRS ports allocated by DCI according to configured or indicated DMRS QCL grouping parameters, and for each DMRS group:
sorting DMRS ports in an order of DMRS port numbers from smallest to largest, or
sorting CDM groups to which DMRS ports in the group belong according to CDM group numbers, and sorting in an order of DMRS port numbers from smallest to largest in each CDM group;
step 2: sorting across DMRS-groups, comprising:
when a quantity of data layers is odd:
place groups containing a smaller number of DMRS ports in front positions, or
sort all DMRS groups according to DMRS group numbers;
when the quantity of data layers is even:
ensure that a set of DMRS ports corresponding to codeword 1 is same as a set of DMRS ports corresponding to codeword 1 when the quantity of data layers minus 1, and a set of DMRS ports corresponding to codeword 0 contains a set of DMRS ports corresponding to codeword 0 when the quantity of data layers minus 1, or
sort all DMRS groups according to the DMRS group numbers;
or way 1-4:
when two DMRS groups are used:
group DMRS ports among DMRS ports allocated by DCI according to high-level configured DMRS QCL grouping parameters, and for each DMRS group: sorting DMRS ports in an order of DMRS port numbers from smallest to largest, or sorting CDM groups to which DMRS ports in the DMRS group belong according to the CDM group numbers, and sorting in an order of DMRS port numbers from smallest to largest in each CDM group;
place DMRS groups containing a smaller number of DMRS ports in front positions.
2. The non-transitory computer storage medium according to claim 1 , wherein, the computer storage medium stores computer executable instructions which are configured to further causes the computer to:
send DCI to the terminal so that the terminal determines configuration parameters of the DMRS port according to the DCI.
3. A non-transitory computer storage medium wherein, the computer storage medium stores computer executable instructions which are configured to cause the computer to:
determine a preset Demodulation Reference Signal, DMRS, port ordering rule; and
receive a data layer mapped onto a DMRS port according to the preset DMRS port ordering rule;
wherein, the DMRS port ordering rule is preset in one of following ways:
way 1 - 3 :
two steps as follows are comprised for dual-codeword transmission:
step 1 : grouping DMRS ports among DMRS ports allocated by DCI according to configured or indicated DMRS QCL grouping parameters, and for each DMRS group:
sort DMRS ports in an order of DMRS port numbers from smallest to largest, or
sort CDM groups to which DMRS ports in the group belong according to CDM group numbers, and sorting in an order of DMRS port numbers from smallest to largest in each CDM group;
step 2 : sorting across DMRS-groups, comprising:
when a quantity of data layers is odd:
place groups containing a smaller number of DMRS ports in front positions, or
sort all DMRS groups according to DMRS group numbers;
when the quantity of data layers is even:
ensure that a set of DMRS ports corresponding to codeword 1 is same as a set of DMRS ports corresponding to codeword 1 when the quantity of data layers minus 1, and a set of DMRS ports corresponding to codeword 0 contains a set of DMRS ports corresponding to codeword 0 when the quantity of data layers minus 1, or
sort all DMRS groups according to the DMRS group numbers;
or way 1 - 4 :
when two DMRS groups are used:
group DMRS ports among DMRS ports allocated by DCI according to high-level configured DMRS QCL grouping parameters, and for each DMRS group: sorting DMRS ports in an order of DMRS port numbers from smallest to largest, or sorting CDM groups to which DMRS ports in the DMRS group belong according to the CDM group numbers, and sorting in an order of DMRS port numbers from smallest to largest in each CDM group;
place DMRS groups containing a smaller number of DMRS ports in front positions.
4. The non-transitory computer storage medium method according to claim 3 , wherein, receiving a data layer mapped onto a DMRS port according to the preset DMRS port ordering rule, comprises:
receiving the data layer mapped onto a DMRS port for transmission according to a following formula:
[
y
(
p
0
)
(
i
)
⋮
y
(
p
v
-
1
)
(
i
)
]
=
[
x
(
0
)
(
i
)
⋮
x
(
v
-
1
)
(
i
)
]
wherein i=0, 1, . . . , M symb layer =1, i represents an ith modulation symbol in M symb layer modulation symbols for transmission in each data layer; P0, . . . , Pv−1 represent v DMRS port numbers;
[
y
(
p
0
)
(
i
)
⋮
y
(
p
v
-
1
)
(
i
)
]
is a vector of v DMRS ports determined according to the preset DMRS port ordering rule;
[
x
(
0
)
(
i
)
⋮
x
(
v
-
1
)
(
i
)
]
is a vector of sent signals obtained by sorting data layers by number according to the quantity v of Multiple-Input-Multiple-Output, MIMO, data layers transmitted in parallel;
[
y
(
p
0
)
(
i
)
⋮
y
(
p
v
-
1
)
(
i
)
]
=
[
x
(
0
)
(
i
)
⋮
x
(
v
-
1
)
(
i
)
]
represents receiving a data layer x (0) (i) on a DMRS port y (p 0 ) (i) used during transmission, and so on, receiving a data layer x (v−1) (i) on a DMRS port y (p v− 1 ) (i) used during transmission.
5. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a first type and a maximum quantity of DMRS symbols is 1, values of {P0, . . . , Pv−1} are determined by a following table:
DMRS
port(s)
{P0, . . . , Pv-1}
0
p 0 = 0
1
p 0 = 1
0, 1
p 0 = 0
p 1 = 1
2
p 0 = 2
3
p 0 = 3
2, 3
p 0 = 2
p 1 = 3
0-2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
0, 2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
wherein item of DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
6. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a first type and a maximum quantity of DMRS symbols is 2, values of {P0, . . . , Pv−1} are determined by a following table:
DMRS
port(s)
{P0, . . . , Pv-1}
0
p 0 = 0
1
p 0 = 1
0, 1
p 0 = 0
p 1 = 1
2
p 0 = 2
3
p 0 = 3
2, 3
p 0 = 2
p 1 = 3
0-2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
0, 2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
4
p 0 = 4
5
p 0 = 5
6
p 0 = 6
7
p 0 = 7
4, 5
p 0 = 4
p 1 = 5
6, 7
p 0 = 6
p 1 = 7
0, 4
p 0 = 0
p 1 = 4
2, 6
p 0 = 2
p 1 = 6
0, 1, 4
p 0 = 0
p 1 = 1
p 2 = 4
2, 3, 6
p 0 = 2
p 1 = 3
p 2 = 6
0, 1, 4, 5
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
2, 3, 6, 7
p 0 = 2
p 1 = 3
p 2 = 6
p 3 = 7
0, 2, 4, 6
p 0 = 0
p 1 = 2
p 2 = 4
p 3 = 6
or
p 0 = 2
p 1 = 6
p 2 = 0
p 3 = 4
or
p 0 = 0
p 1 = 4
p 2 = 2
p 3 = 6
0-4
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
0, 1, 2, 3, 4, 6
p 0 = 2
p 1 = 3
p 2 = 6
p 3 = 0
p 4 = 1
p 5 = 4
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 2
p 4 = 3
p 5 = 6
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 5 = 6
0, 1, 2, 3, 4, 5, 6
p 0 = 2
p 1 = 3
p 2 = 6
p 3 = 0
p 4 = 1
p 5 = 4
p 0 = 5
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 3 = 5
p 6 = 6
0, 1, 2, 3, 4, 5, 6, 7
p 0 = 2
p 1 = 3
p 2 = 6
p 3 = 7
p 4 = 0
p 3 = 1
p 6 = 4
p 7 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 3 = 3
p 6 = 6
p 7 = 7
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 5 = 5
p 6 = 6
p 7 = 7
wherein item of DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
7. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a second type and a maximum quantity of DMRS symbols is 1, values of {P0, . . . , Pv−1} are determined by a following table:
DMRS
port(s)
{P0, . . . , Pv-1}
0
p 0 = 0
1
p 0 = 1
0, 1
p 0 = 0
p 1 = 1
2
p 0 = 2
3
p 0 = 3
2, 3
p 0 = 2
p 1 = 3
0-2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
4
p 0 = 4
5
p 0 = 5
4, 5
p 0 = 4
p 1 = 5
3-5
p 0 = 3
p 1 = 4
p 2 = 5
or
p 0 = 4
p 1 = 5
p 2 = 3
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
0, 2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
0-4
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
0-5
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
P 4 = 4
p 4 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 4 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
P 4 = 4
p 4 = 5
or
p 0 = 2
p 1 = 3
p 2 = 4
p 3 = 5
p 4 = 0
p 4 = 1
or
p 0 = 4
p 1 = 5
p 2 = 0
p 3 = 1
p 4 = 2
p 4 = 3
or
p 0 = 4
p 1 = 5
p 2 = 2
p 3 = 3
p 4 = 0
p 4 = 1
wherein item of DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
8. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a second type and a maximum quantity of DMRS symbols is 2, values of {P0, . . . , Pv−1} are determined by a following table:
DMRS
port(s)
{P0, . . . , Pv-1}
0
p 0 = 0
1
p 0 = 1
0, 1
p 0 = 0
p 1 = 1
2
p 0 = 2
3
p 0 = 3
0, 1
p 0 = 0
p 1 = 1
2, 3
p 0 = 2
p 1 = 3
0-2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
4
p 0 = 4
5
p 0 = 5
4, 5
p 0 = 4
p 1 = 5
3-5
p 0 = 3
p 1 = 4
p 2 = 5
or
p 0 = 5
p 1 = 3
p 2 = 4
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
0, 2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
6
p 0 = 6
7
p 0 = 7
8
p 0 = 8
9
p 0 = 9
10
p 0 = 10
11
p 0 = 11
6, 7
p 0 = 6
p 1 = 7
8, 9
p 0 = 8
p 1 = 9
10, 11
p 0 = 10
p 1 = 11
0, 1, 6
p 0 = 0
p 1 = 1
p 2 = 6
2, 3, 8
p 0 = 2
p 1 = 3
p 2 = 8
4, 5, 10
p 0 = 4
p 1 = 5
p 2 = 10
0, 1, 6, 7
p 0 = 0
p 1 = 1
p 2 = 6
p 3 = 7
2, 3, 8, 9
p 0 = 2
p 1 = 3
p 2 = 8
p 3 = 9
4, 5, 10, 11
p 0 = 4
p 1 = 5
p 2 = 10
p 3 = 11
0-4
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
P 4 = 4
0-5
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 4 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 4 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
p 4 = 5
or
p 0 = 2
p 1 = 3
p 2 = 4
p 3 = 5
p 4 = 0
p 4 = 1
or
p 0 = 4
p 1 = 5
p 2 = 0
p 3 = 1
p 4 = 2
p 4 = 3
or
p 0 = 4
p 1 = 5
p 2 = 2
p 3 = 3
p 4 = 0
p 4 = 1
0, 1, 2, 3, 6
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 6
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
0, 1, 2, 3, 6, 8
p 0 = 2
p 1 = 3
p 2 = 8
p 3 = 0
p 4 = 1
p 5 = 6
or
p 0 = 0
p 1 = 1
p 2 = 6
p 3 = 2
p 4 = 3
p 5 = 8
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 8
0, 1, 2, 3, 6, 7, 8
p 0 = 2
p 1 = 3
p 2 = 8
p 3 = 0
p 4 = 1
p 5 = 6
p 6 = 7
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 7
p 6 = 8
0, 1, 2, 3, 6, 7, 8, 9
p 0 = 2
p 1 = 3
p 2 = 8
p 3 = 9
p 4 = 0
p 5 = 1
p 6 = 6
p 7 = 7
or
p 0 = 0
p 1 = 1
p 2 = 6
p 3 = 7
P 4 = 2
p 5 = 3
p 6 = 8
p 7 = 9
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 7
p 6 = 8
p 7 = 9
wherein item of DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
9. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a first type and a maximum quantity of DMRS symbols is 1, values of {P0, . . . , Pv−1} are determined by a following table:
One Codeword: Codeword 0 enabled, Codeword 1 disabled
Number
of DMRS
CDM
group(s)
without
DMRS
Value
data
port(s)
{P0, . . . , Pv-1}
0
1
0
p 0 = 0
1
1
1
p 0 = 1
2
1
0, 1
p 0 = 0
p 1 = 1
3
2
0
p 0 = 0
4
2
1
p 0 = 1
5
2
2
p 0 = 2
6
2
3
p 0 = 3
7
2
0, 1
p 0 = 0
p 1 = 1
8
2
2, 3
p 0 = 2
p 1 = 3
9
2
0-2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
2
0, 2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
12-15
Reserved
Reserved
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Value represents a value of a DMRS port indication information field, item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data, and item of DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
10. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a first type and a maximum quantity of DMRS symbols is 2, values of {P0, . . . , Pv−1} are determined by a following table:
One Codeword:
Two Codewords:
Codeword 0 enabled,
Codeword 0 enabled,
Codeword 1 disabled
Codeword 1 enabled
Number
Number
of
of
DMRS
Number
DMRS
Number
CDM
of
CDM
of
group(s)
front-
group(s)
front-
without
DMRS
{P0, . . . ,
load
without
DMRS
{P0, . . . ,
load
Value
data
port(s)
Pv-1}
symbols
Value
data
port(s)
Pv-1}
symbols
0
1
0
p 0 = 0
1
0
2
0-4
p 0 = 2
2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
1
1
1
p 0 = 1
1
1
2
0, 1, 2,
p 0 = 2
2
3, 4, 6
p 1 = 3
p 2 = 6
p 3 = 0
p 4 = 1
p 5 = 4
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 2
p 4 = 3
p 5 = 6
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 5 = 6
2
1
0, 1
p 0 = 0
1
2
2
0, 1, 2,
p 0 = 2
2
p 1 = 1
3, 4, 6
p 1 = 3
p 2 = 6
p 3 = 0
p 4 = 1
p 6 = 5
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 5 = 5
p 6 = 6
3
2
0
p 0 = 0
1
3
2
0, 1, 2,
p 0 = 2
2
3, 4, 6, 7
p 1 = 3
p 2 = 6
p 3 = 7
p 4 = 0
p 5 = 1
p 6 = 4
p 7 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 5 = 3
p 6 = 6
p 7 = 7
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 5 = 5
p 6 = 6
p 7 = 7
4
2
1
p 0 = 1
1
4-31
reserved
reserved
reserved
5
2
2
p 0 = 2
1
6
2
3
p 0 = 3
1
7
2
0, 1
p 0 = 0
1
p 1 = 1
8
2
2, 3
p 0 = 2
1
p 1 = 3
9
2
0-2
p 0 = 0
1
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
0-3
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
2
0, 2
p 0 = 0
1
p 1 = 2
or
p 0 = 2
p 1 = 0
12
2
0
p 0 = 0
2
13
2
1
p 0 = 1
2
14
2
2
p 0 = 2
2
15
2
3
p 0 = 3
2
16
2
4
p 0 = 4
2
17
2
5
p 0 = 5
2
18
2
6
p 0 = 6
2
19
2
7
p 0 = 7
2
20
2
0, 1
p 0 = 0
2
p 1 = 1
21
2
2, 3
p 2 = 2
2
p 3 = 3
22
2
4, 5
p 4 = 4
2
p 1 = 5
23
2
6, 7
p 0 = 6
2
p 1 = 7
24
2
0, 4
p 0 = 0
2
p 1 = 4
25
2
2, 6
p 0 = 2
2
p 1 = 6
26
2
0, 1, 4
p 0 = 0
2
p 1 = 1
p 2 = 4
27
2
2, 3, 6
p 0 = 2
2
p 1 = 3
p 2 = 6
28
2
0, 1,
p 0 = 0
2
4, 5
p 1 = 1
p 2 = 4
p 3 = 5
29
2
2, 3,
p 0 = 2
2
6, 7
p 1 = 3
p 2 = 6
p 3 = 7
30
2
0, 2,
p 0 = 0
2
4, 6
p 1 = 2
p 2 = 4
p 3 = 6
or
p 0 = 2
p 1 = 6
p 2 = 0
p 3 = 4
or
p 0 = 0
p 1 = 4
p 2 = 2
p 3 = 6
31
Reserved
Reserved
Reserved
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Two Codewords: Codeword 0 enabled, Codeword 1 enabled represents two codewords, with codeword 0 being enabled and codeword 1 being disabled; item of Value represents a value of a DMRS port indication information field, item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data, item of Number of front-load symbols represents a quantity of front-load DMRS symbols, and item of DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
11. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a second type and the maximum number of DMRS symbols is 1, values of {P0, . . . , Pv−1} are determined by a following table:
One codeword:
Two codewords:
Codeword 0 enabled,
Codeword 0 enabled,
Codeword 1 disabled
Codeword 1 enabled
Number
Number
of
of
DMRS
DMRS
CDM
CDM
group(s)
{P0,
group(s)
{P0,
without
DMRS
. . . ,
without
DMRS
. . . ,
Value
data
port(s)
Pv-1}
Value
data
port(s)
Pv-1}
0
1
0
p 0 = 0
0
3
0-4
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
1
1
1
p 0 = 1
1
3
0-5
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 4 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 4 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
p 4 = 5
or
p 0 = 2
p 1 = 3
p 2 = 4
p 3 = 5
p 4 = 0
p 4 = 1
or
p 0 = 4
p 1 = 5
p 2 = 0
p 3 = 1
p 4 = 2
p 4 = 3
or
p 0 = 4
p 0 = 5
p 1 = 0
p 2 = 2
p 3 = 3
p 4 = 0
p 4 = 1
2
1
0, 1
p 0 = 0
2-31
reserved
reserved
p 1 = 1
3
2
0
p 0 = 0
4
2
1
p 0 = 1
5
2
2
p 0 = 2
6
2
3
p 0 = 3
7
2
0, 1
p 0 = 0
p 1 = 1
8
2
2, 3
p 0 = 2
p 1 = 3
9
2
0-2
p 0 = 0
p 1 = 1
P 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
3
0
p 0 = 0
12
3
1
p 0 = 1
13
3
2
p 0 = 2
14
3
3
p 0 = 3
15
3
4
p 0 = 4
16
3
5
p 0 = 5
17
3
0, 1
p 0 = 0
p 1 = 1
18
3
2, 3
p 0 = 2
p 1 = 3
19
3
4, 5
p 0 = 4
p 1 = 5
20
3
0-2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
21
3
3-5
p 0 = 3
p 1 = 4
p 2 = 5
or
p 0 = 4
p 1 = 5
p 2 = 3
22
3
0-3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
23
2
0, 2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
24-31
Reserved
Reserved
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Two Codewords: Codeword 0 enabled, Codeword 1 enabled represents two codewords, with codeword 0 being enabled and codeword 1 being disabled; item of Value represents a value of a DMRS port indication information field, item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data, item of Number of front-load symbols represents a quantity of front-load DMRS symbols, and DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
12. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a second type and a maximum quantity of DMRS symbols is 2, values of {P0, . . . , Pv−1} are determined by a following table:
One codeword:
Two Codewords:
Codeword 0 enabled,
Codeword 0 enabled,
Codeword 1 disabled
Codeword 1 enabled
Number
Number
of
of
DMRS
Number
DMRS
Number
CDM
of
CDM
of
group(s)
front-
group(s)
front-
without
DMRS
{P0, . . . ,
load
without
DMRS
{P0, . . . ,
load
Value
data
port(s)
Pv-1}
symbols
Value
data
port(s)
Pv-1}
symbols
0
1
0
p 0 = 0
1
0
3
0-4
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
1
1
1
p 0 = 1
1
1
3
0-5
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 4 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 4 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
p 4 = 5
or
p 0 = 2
p 1 = 3
p 2 = 4
p 3 = 5
p 4 = 0
p 4 = 1
or
p 0 = 4
p 1 = 5
p 2 = 0
p 3 = 1
p 4 = 2
p 4 = 3
or
p 0 = 4
p 1 = 5
p 2 = 2
p 3 = 3
p 4 = 0
p 4 = 1
2
1
0, 1
p 0 = 0
1
2
2
0, 1, 2,
p 0 = 2
2
p 1 = 1
3, 6
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 6
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
3
2
0
p 0 = 0
1
3
2
0, 1, 2,
p 0 = 2
2
3, 6, 8
p 1 = 3
p 2 = 8
p 3 = 0
p 4 = 1
p 5 = 6
or
p 0 = 0
p 1 = 1
p 2 = 6
p 3 = 2
p 4 = 3
p 5 = 8
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
ps = 8
4
2
1
p 0 = 1
1
4
2
0, 1, 2,
p 0 = 2
2
3, 6, 7,
p 1 = 3
8
p 2 = 8
p 3 = 0
p 4 = 1
p 5 = 6
p 7 = 7
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 7
p 6 = 8
5
2
2
p 0 = 2
1
5
2
0, 1, 2,
p 0 = 2
2
3, 6, 7,
p 1 = 3
8, 9
p 2 = 8
p 3 = 9
p 4 = 0
p 5 = 1
p 6 = 6
p 7 = 7
or
p 0 = 0
p 1 = 1
p 2 = 6
p 3 = 7
p 4 = 2
p 5 = 3
p 6 = 8
p 7 = 9
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 7
p 6 = 8
p 7 = 9
6
2
3
p 0 = 3
1
6-63
Reserved
Reserved
Reserved
7
2
0, 1
p 0 = 0
1
p 1 = 1
8
2
2, 3
p 0 = 2
1
p 1 = 3
9
2
0-2
p 0 = 0
1
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
0-3
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
3
0
p 0 = 0
1
12
3
1
p 0 = 1
1
13
3
2
p 0 = 2
1
14
3
3
p 0 = 3
1
15
3
4
p 0 = 4
1
16
3
5
p 0 = 5
1
17
3
0, 1
p 0 = 0
1
p 1 = 1
18
3
2, 3
p 0 = 2
1
p 1 = 3
19
3
4, 5
p 0 = 4
1
p 1 = 5
20
3
0-2
p 0 = 0
1
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
21
3
3-5
p 0 = 3
1
p 1 = 4
p 2 = 5
or
p 0 = 5
p 1 = 3
p 2 = 4
22
3
0-3
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
23
2
0, 2
p 0 = 0
1
p 1 = 2
or
p 0 = 2
p 1 = 0
24
3
0
p 0 = 0
2
25
3
1
p 0 = 1
2
26
3
2
p 0 = 2
2
27
3
3
p 0 = 3
2
28
3
4
p 0 = 4
2
29
3
5
p 0 = 5
2
30
3
6
p 0 = 6
2
31
3
7
p 0 = 7
2
32
3
8
p 0 = 8
2
33
3
9
p 0 = 9
2
34
3
10
p 0 = 10
2
35
3
11
p 0 = 11
2
36
3
0
p 0 = 0
2
p 1 = 1
37
3
2
p 0 = 2
2
p 1 = 3
38
3
4
p 0 = 4
2
p 1 = 5
39
3
6
p 0 = 6
2
p 1 = 7
40
3
8, 9
p 0 = 8
2
p 1 = 9
41
3
10, 11
p 0 = 10
2
p 1 = 11
p 0 = 0
42
3
0, 1, 6
p 1 = 1
2
p 2 = 6
p 0 = 2
43
3
2, 3, 8
p 1 = 3
2
p 2 = 8
p 0 = 4
44
3
4, 5,
p 1 = 5
2
10
p 2 = 10
45
3
0, 1,
p 0 = 0
2
6, 7
p 1 = 1
p 2 = 6
p 3 = 7
46
3
2, 3,
p 0 = 2
2
8, 9
p 1 = 3
p 2 = 8
p 3 = 9
47
3
4, 5,
p 0 = 4
2
10, 11
p 1 = 5
p 2 = 10
p 3 = 11
48
1
0
p 0 = 0
2
49
1
1
p 0 = 1
2
50
1
6
p 0 = 6
2
51
1
7
p 0 = 7
2
52
1
0, 1
p 0 = 0
2
p 1 = 1
53
1
6, 7
p 0 = 6
2
p 1 = 7
54
2
0 1
p 0 = 0
2
p 1 = 1
55
2
2, 3
p 0 = 2
2
p 1 = 3
56
2
6, 7
p 0 = 6
2
p 1 = 7
57
2
8, 9
p 0 = 8
2
p 1 = 9
58-63
Reserved
Reserved
Reserved
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Two Codewords: Codeword 0 enabled, Codeword 1 enabled represents two codewords, with codeword 0 being enabled and codeword 1 being disabled; item of Value represents a value of a DMRS port indication information field, item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data, item of Number of front-load symbols represents a quantity of front-load DMRS symbols, and item of DMRS port(s) represents a set of DMRS ports and is notified to a terminal through DCI.
13. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a first type and a maximum quantity of DMRS symbols is 1, values of {P0, . . . , Pv−1} are determined by a following table:
One Codeword: Codeword 0 enabled, Codeword 1 disabled
Number
of DMRS
CDM
group(s)
without
Value
data
{P0, . . . , Pv-1}
0
1
p 0 = 0
1
1
p 0 = 1
2
1
p 0 = 0
p 1 = 1
3
2
p 0 = 0
4
2
p 0 = 1
5
2
p 0 = 2
6
2
p 0 = 3
7
2
p 0 = 0
p 1 = 1
8
2
p 0 = 2
p 1 = 3
9
2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
12-15
Reserved
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Value represents a value of a DMRS port indication information field; and item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data.
14. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a first type and a maximum quantity of DMRS symbols is 2, values of {P0, . . . , Pv−1} are determined by a following table:
One Codeword:
Two Codewords:
Codeword 0 enabled,
Codeword 0 enabled,
Codeword 1 disabled
Codeword 1 enabled
Number
Number
of
of
DMRS
Number
DMRS
Number
CDM
of
CDM
of
group(s)
{P0,
front-
group(s)
{P0,
front-
without
. . . ,
load
without
. . . ,
load
Value
data
Pv-1}
symbols
Value
data
Pv-1}
symbols
0
1
p 0 = 0
1
0
2
p 0 = 2
2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
1
1
p 0 = 1
1
1
2
p 0 = 2
2
p 1 = 3
p 2 = 6
p 3 = 0
p 4 = 1
p 5 = 4
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 2
p 4 = 3
p 5 = 6
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 5 = 6
2
1
p 0 = 0
1
2
2
p 0 = 2
2
p 1 = 1
p 1 = 3
p 2 = 6
p 3 = 0
p 4 = 1
p 5 = 4
p 6 = 5
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
ps = 5
p6 = 6
3
2
p 0 = 0
1
3
2
p 0 = 2
2
p 1 = 3
p 2 = 6
p 3 = 7
p 4 = 0
p 5 = 1
p 6 = 4
p 7 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 5 = 3
p 6 = 6
p 7 = 7
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 5 = 5
p 6 = 6
p 7 = 7
4
2
p 0 = 1
1
4-31
reserved
reserved
5
2
p 0 = 2
1
6
2
p 0 = 3
1
7
2
p 0 = 0
1
p 0 = 1
8
2
p 0 = 2
1
p 1 = 3
9
2
p 0 = 0
1
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
2
p 0 = 0
1
p 1 = 2
or
p 0 = 2
p 1 = 0
12
2
p 0 = 0
2
13
2
p 0 = 1
2
14
2
p 0 = 2
2
15
2
p 0 = 3
2
16
2
p 0 = 4
2
17
2
p 0 = 5
2
18
2
p 0 = 6
2
19
2
p 0 = 7
2
20
2
p 0 = 0
2
p 1 = 1
21
2
p 0 = 2
2
p 1 = 3
22
2
p 0 = 4
2
p 1 = 5
23
2
p 0 = 6
2
p 1 = 7
24
2
p 0 = 0
2
p 1 = 4
25
2
p 0 = 2
2
p 1 = 6
26
2
p 0 = 0
2
p 1 = 1
p 2 = 4
27
2
p 0 = 2
2
p 1 = 3
p 2 = 6
28
2
p 0 = 0
2
p 1 = 1
p 2 = 4
p 3 = 5
29
2
p 0 = 2
2
p 1 = 3
p 2 = 6
p 3 = 7
30
2
p 0 = 0
2
p 1 = 2
p 2 = 4
p 3 = 6
or
p 0 = 2
p 1 = 6
p 2 = 0
p 3 = 4
or
p 0 = 0
p 1 = 4
p 2 = 2
p 3 = 6
31
Re-
Re-
served
served
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Two Codewords: Codeword 0 enabled, Codeword 1 enabled represents two codewords, with codeword 0 being enabled and codeword 1 is disabled; item of Value represents a value of a DMRS port indication information field; item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data; and item of Number of front-load symbols represents a quantity of front-load DMRS symbols.
15. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a second type and a maximum quantity of DMRS symbols is 1, values of {P0, . . . , Pv−1} are determined by a following table:
One Codeword:
Two Codewords:
Codeword 0 enabled,
Codeword 0 enabled,
Codeword 1 disabled
Codeword 1 enabled
Number
Number
of DMRS
of DMRS
CDM
CDM
group(s)
{P0,
group(s)
{P0,
without
. . . ,
without
. . . ,
Value
data
Pv-1}
Value
data
Pv-1}
0
1
p 0 = 0
0
3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
1
1
p 0 = 1
1
3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 4 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 4 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
p 4 = 5
or
p 0 = 2
p 1 = 3
p 2 = 4
p 3 = 5
p 4 = 0
p 4 = 1
or
p 0 = 4
p 1 = 5
p 2 = 0
p 3 = 1
p 4 = 2
p 4 = 3
or
p 0 = 4
p 1 = 5
p 2 = 2
p 3 = 3
p 4 = 0
p 4 = 1
2
1
p 0 = 0
2-31
reserved
p 1 = 1
3
2
p 0 = 0
4
2
p 0 = 1
5
2
p 0 = 2
6
2
p 0 = 3
7
2
p 0 = 0
p 1 = 1
8
2
p 0 = 2
p 1 = 3
9
2
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
3
p 0 = 0
12
3
p 0 = 1
13
3
p 0 = 2
14
3
p 0 = 3
15
3
p 0 = 4
16
3
p 0 = 5
17
3
p 0 = 0
p 1 = 1
18
3
p 0 = 2
p 1 = 3
19
3
p 0 = 4
p 1 = 5
20
3
p 0 = 0
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
21
3
p 0 = 3
p 1 = 4
p 2 = 5
or
p 0 = 4
p 1 = 5
p 2 = 3
22
3
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
23
2
p 0 = 0
p 1 = 2
or
p 0 = 2
p 1 = 0
24-31
Reserved
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Two Codewords: Codeword 0 enabled, Codeword 1 enabled represents two codewords, with codeword 0 being enabled and codeword 1 being disabled; item of Value represents a value of a DMRS port indication information field; and item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data.
16. The non-transitory computer storage medium method according to claim 4 , wherein, when a DMRS configuration type is a second type and a maximum quantity of DMRS symbols is 2, values of {P0, . . . , Pv−1} are determined by a following table:
One Codeword:
Two Codewords:
Codeword 0 enabled,
Codeword 0 enabled,
Codeword 1 disabled
Codeword 1 enabled
Number
Number
of
of
DMRS
Number
DMRS
Number
CDM
of
CDM
of
group(s)
{P0,
front-
group(s)
{P0,
front-
without
. . . ,
load
without
. . . ,
load
Value
data
Pv-1}
symbols
Value
data
Pv-1}
symbols
0
1
p 0 = 0
1
0
3
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
1
1
p 0 = 1
1
1
3
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 4
p 4 = 5
or
p 0 = 0
p 1 = 1
p 2 = 4
p 3 = 5
p 4 = 2
p 4 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
p 4 = 4
p 4 = 5
or
p 0 = 2
p 1 = 3
p 2 = 4
p 3 = 5
p 4 = 0
p 4 = 1
or
p 0 = 4
p 1 = 5
p 2 = 0
p 3 = 1
p 4 = 2
p 4 = 3
or
p 0 = 4
p 1 = 5
p 2 = 2
p 3 = 3
p 4 = 0
p 4 = 1
2
1
p 0 = 0
1
2
2
p 0 = 2
2
p 1 = 1
p 1 = 3
p 2 = 0
p 3 = 1
or
p 1 = 1
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
3
2
p 0 = 0
1
3
2
p 0 = 2
2
p 1 = 3
p 2 = 8
p 3 = 0
p 1 = 1
p 5 = 6
or
p 0 = 0
p 1 = 1
p 2 = 6
p 4 = 3
p 5 = 8
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 8
4
2
p 0 = 1
1
4
2
p 0 = 2
2
p 1 = 3
p 2 = 8
p 3 = 0
p 4 = 1
p 5 = 6
p 6 = 7
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 7
p 6 = 8
5
2
p 0 = 2
1
5
2
p 0 = 2
2
p 1 = 3
p 2 = 8
p 3 = 9
p 4 = 0
p 5 = 1
p 6 = 6
p 7 = 7
or
p 0 = 0
p 1 = 1
p 2 = 6
p 3 = 7
p 5 = 3
p 6 = 8
p 7 = 9
or
p 0 = 0
p 1 = 1
p 2 = 2
p 3 = 3
p 4 = 6
p 5 = 7
p 6 = 8
p 7 = 9
6
2
p 0 = 3
1
6-63
Re-
Re-
served
served
7
2
p 0 = 0
1
p 1 = 1
8
2
p 0 = 2
1
p 1 = 3
9
2
p 0 = 0
1
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
10
2
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
11
3
p 0 = 0
1
12
3
p 0 = 1
1
13
3
p 0 = 2
1
14
3
p 0 = 3
1
15
3
p 0 = 4
1
16
3
p 0 = 5
1
17
3
p 0 = 0
1
p 1 = 1
18
3
p 0 = 2
1
p 1 = 3
19
3
p 0 = 4
1
p 1 = 5
20
3
p 0 = 0
1
p 1 = 1
p 2 = 2
or
p 0 = 2
p 1 = 0
p 2 = 1
21
3
p 0 = 3
1
p 1 = 4
p 2 = 5
or
p 0 = 5
p 1 = 3
p 2 = 4
22
3
p 0 = 0
1
p 1 = 1
p 2 = 2
p 3 = 3
or
p 0 = 2
p 1 = 3
p 2 = 0
p 3 = 1
23
2
p 0 = 0
1
p 1 = 2
or
p 0 = 2
p 1 = 0
24
3
p 0 = 0
2
25
3
p 0 = 1
2
26
3
p 0 = 2
2
27
3
p 0 = 3
2
28
3
p 0 = 4
2
29
3
p 0 = 5
2
30
3
p 0 = 6
2
31
3
p 0 = 7
2
32
3
p 0 = 8
2
33
3
p 0 = 9
2
34
3
p 0 = 10
2
35
3
p 0 = 11
2
36
3
p 0 = 0
2
p 1 = 1
37
3
p 0 = 2
2
p 1 = 3
38
3
p 0 = 4
2
p 1 = 5
39
3
p 0 = 6
2
p 1 = 7
40
3
p 0 = 8
2
p 1 = 9
41
3
p 0 = 10
2
p 1 = 11
42
3
p 0 = 0
2
p 1 = 1
p 2 = 6
43
3
p 0 = 2
2
p 1 = 3
p 2 = 8
44
3
p 0 = 4
2
p 1 = 5
p 2 = 10
45
3
p 0 = 0
2
p 1 = 1
p 2 = 6
p 3 = 7
46
3
p 0 = 2
2
p 1 = 3
p 2 = 8
p 3 = 9
47
3
p 0 = 4
2
p 1 = 5
p 2 = 10
p 3 = 11
48
1
p 0 = 0
2
49
1
p 0 = 1
2
50
1
p 0 = 6
2
51
1
p 0 = 7
2
52
1
p 0 = 0
2
p 1 = 1
53
1
p 0 = 6
2
p 1 = 7
54
2
p 0 = 0
2
p 1 = 1
55
2
p 0 = 2
2
p 1 = 3
56
2
p 0 = 6
2
p 1 = 7
57
2
p 0 = 8
2
p 1 = 9
58-63
Re-
Re-
served
served
wherein item of One Codeword: Codeword 0 enabled, Codeword 1 disabled represents one codeword, with codeword 0 being enabled and codeword 1 being disabled; item of Two Codewords: Codeword 0 enabled, Codeword 1 enabled represents two codewords, with codeword 0 being valid and codeword 1 being invalid; item of Value represents a value of a DMRS port indication information field; item of Number of DMRS CDM group(s) without data represents a quantity of DMRS CDM groups without data; and item of Number of front-load symbols represents a quantity of front-load DMRS symbols.
17. An apparatus for sending data, wherein, the apparatus comprises a memory and a processor, wherein the memory is configured to store program instructions, and the processor is configured to invoke the program instructions stored in the memory and, in accordance with an obtained program, perform the instructions stored on the non-transitory computer storage medium of claim 1 .
18. A data receiving apparatus, wherein, the apparatus comprises a memory and a processor, wherein the memory is configured to store program instructions, and the processor is configured to invoke the program instructions stored in the memory and, in accordance with an obtained program, perform:
determining a preset DMRS port ordering rule; and
receiving a data layer mapped onto a DMRS port via a transceiver according to the preset DMRS port ordering rule;
wherein, the DMRS port ordering rule is preset in one of following ways:
way 1 - 3 :
two steps as follows are comprised for dual-codeword transmission:
step 1 : grouping DMRS ports among DMRS ports allocated by DCI according to configured or indicated DMRS QCL grouping parameters, and for each DMRS group:
sorting DMRS ports in an order of DMRS port numbers from smallest to largest, or
sorting CDM groups to which DMRS ports in the group belong according to CDM group numbers, and sorting in an order of DMRS port numbers from smallest to largest in each CDM group;
step 2 : sorting across DMRS-groups, comprising:
when a quantity of data layers is odd:
placing groups containing a smaller number of DMRS ports in front positions, or
sorting all DMRS groups according to DMRS group numbers;
when the quantity of data layers is even:
ensuring that a set of DMRS ports corresponding to codeword 1 is same as a set of DMRS ports corresponding to codeword 1 when the quantity of data layers minus 1, and a set of DMRS ports corresponding to codeword 0 contains a set of DMRS ports corresponding to codeword 0 when the quantity of data layers minus 1, or
sorting all DMRS groups according to the DMRS group numbers;
or way 1 - 4 :
when two DMRS groups are used:
grouping DMRS ports among DMRS ports allocated by DCI according to high-level configured DMRS QCL grouping parameters, and for each DMRS group: sorting DMRS ports in an order of DMRS port numbers from smallest to largest, or sorting CDM groups to which DMRS ports in the DMRS group belong according to the CDM group numbers, and sorting in an order of DMRS port numbers from smallest to largest in each CDM group;
placing DMRS groups containing a smaller number of DMRS ports in front positions.