CHANNEL STATE INFORMATION TRANSMISSION METHOD, COMMUNICATION DEVICE, AND APPARATUS
A CSI transmission method, a communication device and a device are provided. The CSI transmission method includes: determining a resource available for the transmission of the first part of the CSI on a PUSCH in accordance with a target code rate used by the first part of the CSI; and determining an available resource on the PUSCH other than the resource available for the transmission of the first part of the CSI as a resource available for the transmission of the second part of the CSI on the PUSCH.
1 - 34 . (canceled)
35 . A Channel State Information (CSI) transmission method, CSI comprising a first part and a second part, the CSI transmission method comprising:
determining a resource available for transmission of the first part of the CSI on a Physical Uplink Shared Channel (PUSCH) in accordance with a target code rate used by the first part of the CSI;
determining an available resource on the PUSCH other than the resource available for the transmission of the first part of the CSI as a resource available for transmission of the second part of the CSI on the PUSCH.
36 . The CSI transmission method according to claim 35 , wherein prior to determining the resource available for the transmission of the first part of the CSI on the PUSCH in accordance with the target code rate used by the first part of the CSI, the CSI transmission method further comprises:
acquiring the target code rate used by the first part of the CSI.
37 . The CSI transmission method according to claim 36 , wherein the acquiring the target code rate used by the first part of the CSI comprises:
receiving the target code rate used by the first part of the CSI and configured by a base station through high-layer signaling; or
receiving a set of code rates preconfigured by the base station and capable of being used by the first part of the CSI, receiving Downlink Control Information (DCI) capable of triggering a User Equipment (UE) to transmit the first part of the CSI, and determining one code rate in the set of code rates as the target code rate used by the first part of the CSI in accordance with indication information in a specific indication field of the DCI, the set of code rates comprising two or more code rates; or
predefining in a protocol a set of code rates capable of being used by the first part of the CSI, receiving DCI capable of triggering the UE to transmit the first part of the CSI, and determining one code rate in the set of code rates as the target code rate used by the first part of the CSI in accordance with indication information in a specific indication field of the DCI, the set of code rates comprising two or more code rates; or
predefining in a protocol a set of code rates capable of being used by the first part of the CSI, receiving high-layer signaling from the base station, and determining one code rate in the set of code rates as the target code rate used by the first part of the C SI in accordance with indication information in the high-layer signaling, the set of code rates comprising two or more code rates.
38 . The CSI transmission method according to claim 37 , wherein the specific indication field of the DCI comprises one or a combination of two or more of a Modulation & Coding Scheme (MCS) information field, a Redundancy Version (RV) information field, a New Data Indicator (NDI) information field, and a Hybrid Automatic Repeat reQuest (HARD) process number indication information field.
39 . The CSI transmission method according to claim 35 , wherein the determining the resource available for the transmission of the first part of the CSI on the PUSCH in accordance with the target code rate used by the first part of the CSI comprises:
determining the quantity of Resource Elements (REs) available for the transmission of the first part of the CSI on the PUSCH in accordance with the target code rate used by the first part of the CSI, the quantity of information bits of the first part of the CSI and the modulation order of the first part of the CSI,
wherein the determining the quantity of the REs available for the transmission of the first part of the CSI on the PUSCH in accordance with the target code rate used by the first part of the CSI, the quantity of information bits of the first part of the CSI and the modulation order of the first part of the CSI comprises:
determining the quantity of the REs available for the transmission of the first part of the CSI on the PUSCH through a first formula
N
R
E
CSI
-
p
a
r
t
1
=
⌈
O
CSI
-
part
1
R
Target
*
Q
m
⌉
,
where N RE CSI-part1 represents the quantity of the REs available for the transmission of the first part of the CSI on the PUSCH, O CSI-part1 represents the quantity of information bits of the first part of the CSI, R T arg et represents the target code rate used by the first part of the CSI, and Q m , represents the modulation order of the first part of the CSI.
40 . The CSI transmission method according to claim 39 , wherein the determining the available resource on the PUSCH other than the resource available for the transmission of the first part of the CSI as the resource available for the transmission of the second part of the CSI on the PUSCH comprises:
determining the quantity of REs available for the transmission of the second part of the CSI on the PUSCH in accordance with the quantity of REs available for the transmission of Uplink Control Information (UCI) on the PUSCH and the quantity of REs available for the transmission of the first part of the CSI on the PUSCH,
wherein the determining the quantity of REs available for the transmission of the second part of the CSI on the PUSCH in accordance with the quantity of REs available for the transmission of UCI on the PUSCH and the quantity of REs available for the transmission of the first part of the CSI on the PUSCH comprises:
determining the quantity of REs available for the transmission of the second part of the CSI on the PUSCH through a second formula N RE CSI-part2 =N RE PUSCH −N RE CSI-part1 −N RE HARQ-ACK ,
where N RE CSI-part2 represents the quantity of REs available for the transmission of the second part of the CSI on the PUSCH, N RE PUSCH represents the quantity of REs available for the transmission of the UCI on the PUSCH N RE CSI-part1 represents the quantity of REs available for the transmission of the first part of the CSI on the PUSCH, and N RE HARQ-ACK represents the quantity of REs available for the transmission of an HARQ Acknowledgement (HARQ-ACK) on the PUSCH.
41 . The CSI transmission method according to claim 40 , wherein the quantity N RE PUSCH of REs available for the transmission of the UCI on the PUSCH is calculated through a formula
N
R
E
P
U
S
C
H
=
∑
l
=
0
N
symb
,
all
PUSCH
-
n
M
s
c
Φ
U
C
I
(
l
)
,
where N RE PUSCH represents the quantity of REs available for the transmission of the UCI on the PUSCH, M sc Φ UCI (l) represents the quantity of REs available for the transmission of the UCI on an Orthogonal Frequency Division Multiplexing (OFDM) symbol l, N symb,all PUSCH represents the quantity of OFDM symbols in the PUSCH, and n represents the quantity of OFDM symbols occupied by a Demodulation Reference Signal (DMRS) in the PUSCH.
42 . The CSI transmission method according to claim 39 , wherein subsequent to determining the quantity of REs available for the transmission of the first part of the CSI on the PUSCH, the CSI transmission method further comprises:
when the quantity of REs available for the transmission of the first part of the CSI on the PUSCH is greater than the quantity of REs available for the transmission of the UCI on the PUSCH, determining the REs available for the transmission of the UCI on the PUSCH as the REs available for the transmission of the first part of the CSI, and determining that there is no RE available for the transmission of the second part of the CSI on the PUSCH.
43 . The CSI transmission method according to claim 35 , wherein prior to determining the resource available for the transmission of the first part of the CSI on the PUSCH in accordance with the target code rate used by the first part of the CSI, the CSI transmission method further comprises:
receiving the DCI transmitted by the base station;
parsing the DCI to determine that merely the CSI, rather than data, is transmitted through the PUSCH.
44 . The CSI transmission method according to claim 35 , wherein subsequent to determining the available resource on the PUSCH other than the resource available for the transmission of the first part of the CSI as the resource available for the transmission of the second part of the CSI on the PUSCH, the CSI transmission method further comprises:
acquiring a code rate threshold of the second part of the CSI;
determining the quantity of bits of the second part of the CSI capable of being transmitted through the resource available for the transmission of the second part of the CSI on the PUSCH in accordance with the code rate threshold of the second part of the CSI,
the acquiring the code rate threshold of the second part of the CSI comprises:
determining the code rate threshold of the second part of the CSI through a third formula
R
T
h
reshold
C
S
I
,
2
=
R
Target
C
S
I
,
1
*
β
offset
C
S
I
,
1
β
offset
C
S
I
,
2
,
where R Threshold CSI,2 represents the code rate threshold of the second part of the CSI R T arg et CSI,1 represents the target code rate used by the first part of the CSI, β offset CSI,1 represents a code rate offset of the first part of the CSI, and β offset CSI,2 represents a code rate offset of the second part of the CSI; or
the determining the quantity of bits of the second part of the CSI capable of being transmitted through the resource available for the transmission of the second part of the CSI on the PUSCH in accordance with the code rate threshold of the second part of the CSI comprises:
when an actual code rate corresponding to the second part of the CSI is smaller than or equal to the code rate threshold of the second part of the CSI, determining the quantity of bits of the second part of the CSI capable of being transmitted through the resource available for the transmission of the second part of the CSI as the total quantity of bits of the second part of the CSI;
when the actual code rate corresponding to the second part of the CSI is greater than the code rate threshold of the second part of the CSI, discarding the second part of the CSI in accordance with a predetermined rule until an actual code rate corresponding to the remaining second part of the CSI is smaller than or equal to the code rate threshold of the second part of the CSI, and determining the quantity of bits of the second part of the CSI capable of being transmitted through the resource available for the transmission of the second part of the CSI as the quantity of bits of the remaining second part of the CSI.
45 . A communication device, comprising a memory, a processor, and a computer program stored in the memory and executed by the processor, wherein the processor is configured to execute the computer program to:
determine a resource available for transmission of a first part of the CSI on a PUSCH in accordance with a target code rate used by the first part of the CSI;
determine an available resource on the PUSCH other than the resource available for the transmission of the first part of the CSI as a resource available for the transmission of a second part of the CSI on the PUSCH.
46 . The communication device according to claim 45 , further comprising:
a transceiver configured to acquire the target code rate used by the first part of the CSI.
47 . The communication device according to claim 46 , wherein the transceiver is further configured to:
receive the target code rate used by the first part of the CSI and configured by a base station through high-layer signaling; or
receive a set of code rates preconfigured by the base station and capable of being used by the first part of the CSI, receive DCI capable of triggering a UE to transmit the first part of the CSI, and determine one code rate in the set of code rates as the target code rate used by the first part of the CSI in accordance with indication information in a specific indication field of the DCI, the set of code rates comprising two or more code rates; or
predefine in a protocol a set of code rates capable of being used by the first part of the CSI, receive DCI capable of triggering the UE to transmit the first part of the CSI, and determine one code rate in the set of code rates as the target code rate used by the first part of the C SI in accordance with indication information in a specific indication field of the DCI, the set of code rates comprising two or more code rates; or
predefine in a protocol a set of code rates capable of being used by the first part of the CSI, receive high-layer signaling from the base station, and determine one code rate in the set of code rates as the target code rate used by the first part of the CSI in accordance with indication information in the high-layer signaling, the set of code rates comprising two or more code rates.
48 . The communication device according to claim 47 , wherein the specific indication field of the DCI comprises one or a combination of two or more of an MCS information field, an RV information field, an NDI information field, and an HARQ process number indication information field.
49 . The communication device according to claim 45 , wherein the processor is further configured to:
determine the quantity of REs available for the transmission of the first part of the CSI on the PUSCH in accordance with the target code rate used by the first part of the CSI, the quantity of information bits of the first part of the CSI and the modulation order of the first part of the CSI,
wherein the processor is further configured to:
determine the quantity of the REs available for the transmission of the first part of the CSI on the PUSCH through a first formula
N
R
E
CSI
-
p
a
r
t
1
=
⌈
O
CSI
-
part
1
R
Target
*
Q
m
⌉
,
where N RE CSI-part1 represents the quantity of the REs available for the transmission of the first part of the CSI on the PUSCH, O CSI-part1 represents the quantity of information bits of the first part of the CSI, R T arg et represents the target code rate used by the first part of the CSI, and Q m , represents the modulation order of the first part of the CSI.
50 . The communication device according to claim 49 , wherein the processor is further configured to:
determine the quantity of REs available for the transmission of the second part of the CSI on the PUSCH in accordance with the quantity of REs available for the transmission of UCI on the PUSCH and the quantity of REs available for the transmission of the first part of the CSI on the PUSCH,
wherein the processor is further configured to:
determine the quantity of REs available for the transmission of the second part of the CSI on the PUSCH through a second formula N RE CSI-part2 =N RE PUSCH −N RE CSI-part1 −N RE ARQ-ACK ,
where N RE CSI-part2 represents the quantity of REs available for the transmission of the second part of the CSI on the PUSCH, N RE PUSCH represents the quantity of REs available for the transmission of the UCI on the PUSCH, N RE CSI-part1 represents the quantity of REs available for the transmission of the first part of the CSI on the PUSCH, and N RE HARQ-ACK represents the quantity of REs available for the transmission of an HARQ-ACK on the PUSCH.
51 . The communication device according to claim 50 , wherein the processor is further configured to:
calculate the quantity N RE PUSCH of REs available for the transmission of the UCI on the PUSCH through a formula
N
R
E
P
U
S
C
H
=
∑
l
=
0
N
symb
,
all
PUSCH
-
n
M
s
c
Φ
U
C
I
(
l
)
,
where N RE PUSCH represents the quantity of REs available for the transmission of the UCI on the PUSCH, M sc Φ UCI (l) represents the quantity of REs available for the transmission of the UCI on an OFDM symbol l, N symb, all PUSCH represents the quantity of OFDM symbols in the PUSCH, and n represents the quantity of OFDM symbols occupied by a DMRS in the PUSCH.
52 . The communication device according to claim 49 , wherein the processor is further configured to,
when the quantity of REs available for the transmission of the first part of the CSI on the PUSCH is greater than the quantity of REs available for the transmission of the UCI on the PUSCH, determine the REs available for the transmission of the UCI on the PUSCH as the REs available for the transmission of the first part of the CSI, and determine that there is no RE available for the transmission of the second part of the CSI on the PUSCH.
53 . The communication device according to claim 45 , wherein
the transceiver is further configured to receive the DCI transmitted by the base station;
the processor is further configured to parse the DCI to determine that merely the CSI, rather than data, is transmitted through the PUSCH.
54 . The communication device according to claim 45 , wherein the processor is further configured to:
acquire a code rate threshold of the second part of the CSI;
determine the quantity of bits of the second part of the CSI capable of being transmitted through the resource available for the transmission of the second part of the CSI on the PUSCH in accordance with the code rate threshold of the second part of the CSI,
wherein the processor is further configured to:
determine the code rate threshold of the second part of the CSI through a third formula
R
T
h
reshold
C
S
I
,
2
=
R
Target
C
S
I
,
1
*
β
offset
C
S
I
,
1
β
offset
C
S
I
,
2
,
where R Threshold CSI,2 represents the code rate threshold of the second part of the CSI, R T arg et CSI,1 represents the target code rate used by the first part of the CSI, β offset CSI,1 represents a code rate offset of the first part of the CSI, and β offset CSI,2 represents a code rate offset of the second part of the CSI; or
the processor is further configured to:
when an actual code rate corresponding to the second part of the CSI is smaller than or equal to the code rate threshold of the second part of the CSI, determine the quantity of bits of the second part of the CSI capable of being transmitted through the resource available for the transmission of the second part of the CSI as the total quantity of bits of the second part of the CSI;
when the actual code rate corresponding to the second part of the CSI is greater than the code rate threshold of the second part of the CSI, discard the second part of the CSI in accordance with a predetermined rule until an actual code rate corresponding to the remaining second part of the CSI is smaller than or equal to the code rate threshold of the second part of the CSI, and determine the quantity of bits of the second part of the CSI capable of being transmitted through the resource available for the transmission of the second part of the CSI as the quantity of bits of the remaining second part of the CSI.