US 12,245,236 B2
Method and apparatus of determining cap of transmission resources available for control information and communication apparatus
Qianqian Si, Beijing (CN); and Xuejuan Gao, Beijing (CN)
Assigned to Datang Mobile Communications Equipment Co., Ltd., Beijing (CN)
Appl. No. 16/960,184
Filed by CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY, Beijing (CN)
PCT Filed Dec. 25, 2018, PCT No. PCT/CN2018/123487
§ 371(c)(1), (2) Date Jul. 6, 2020,
PCT Pub. No. WO2019/137203, PCT Pub. Date Jul. 18, 2019.
Claims priority of application No. 201810027450.8 (CN), filed on Jan. 11, 2018; and application No. 201810032493.5 (CN), filed on Jan. 12, 2018.
Prior Publication US 2020/0404649 A1, Dec. 24, 2020
Int. Cl. H04W 72/21 (2023.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04W 72/21 (2023.01) [H04L 1/1812 (2013.01); H04L 5/0048 (2013.01); H04L 27/2601 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of determining a cap of transmission resources available for control information, applied to a communication device, comprising:
calculating, according to a ratio coefficient, a cap of a quality of coded modulation symbols of control information on a physical uplink shared channel (PUSCH);
wherein the calculating, according to the ratio coefficient, the cap of the quantity of coded modulation symbols of control information on the PUSCH comprises:
calculating, when a hybrid automatic repeat request acknowledgement (HARQ-ACK) is mapped onto a PUSCH with or without uplink-shared channel (UL-SCH) data, the cap of a quantity of coded modulation symbols of the HARQ-ACK in each transport layer according to the following formula:

OG Complex Work Unit Math
wherein X represents the cap value of the quantity of coded modulation symbols of the HARQ-ACK in each transport layer, ┌ ┐ represents a ceiling function, × represents a multiplication sign, ratio represents the ratio coefficient, MscΦUCI(l)=|ΦlUCI| represents a quantity of elements in a set ΦlUCI, | | represents an absolute function, ΦlUCI is a set of resource units available for transmitting the uplink control information (UCI) in an orthogonal frequency-division multiplexing (OFDM) symbol l, l=0, 1, 2, . . . , Nsymb,allPUSCH−1 and Nsymb,allPUSCH is a quantity of all the OFDM symbols of the PUSCH and comprises a quantity of all symbols occupied by a demodulation reference signal (DMRS);
or,
wherein the calculating, according to the ratio coefficient, the cap of the quantity of coded modulation symbols of control information on the PUSCH comprises:
calculating, when a channel state information (CSI) part 1 is mapped onto the PUSCH with uplink-shared channel (UL-SCH) data, the cap of the quantity of coded modulation symbols of the CSI part 1 in each transport layer according to the following formula:

OG Complex Work Unit Math
wherein X represents the cap value of the quantity of coded modulation symbols of the CSI part 1 in each transport layer, ┌ ┐ represents a ceiling function, × represents a multiplication sign, and ratio represents the ratio coefficient;
if an quantity of information bits of a hybrid automatic repeat request acknowledgement (HARQ-ACK) is greater than 2, Q′ACK represents a quantity of coded modulation symbols of the HARQ-ACK in each transport layer of the PUSCH;
if the quantity of information bits of the HARQ-ACK is 1 or 2,

OG Complex Work Unit Math
wherein Φlrvd is a set of reserved resource units available for transmitting the HARQ-ACK in an orthogonal frequency-division multiplexing (OFDM) symbol l, l=0, 1, 2, . . . , Nsymb,allPUSCH−1, and Msc,rvdΦ(l)=|Φlrvd| represents a quantity of elements in Φlrvd; | | represents an absolute function, and
MscΦUCI(l)=|ΦlUCI| represents a quantity of elements in a set ΦlUCI, wherein | | represents an absolute function, ΦlUCI is a set of resource units available for transmitting the UCI in the OFDM symbol l, l=0, 1, 2, . . . , Nsymb,allPUSCH−1, and Nsymb,allPUSCH is a quantity of all the OFDM symbols of the PUSCH and comprises a quantity of all symbols occupied by a demodulation reference signal (DMRS);
or,
wherein the calculating, according to the ratio coefficient, the cap of the quantity of coded modulation symbols of control information on the PUSCH comprises:
calculating, when a channel state information (CSI) part 2 is mapped onto the PUSCH with uplink-shared channel (UL-SCH) data, the cap of the quantity of coded modulation symbols of the CSI part 2 in each transport layer according to the following formula:

OG Complex Work Unit Math
wherein X represents the cap value of the quantity of coded modulation symbols of the CSI part 2 in each transport layer, ┌ ┐ represents a ceiling function, × represents a multiplication sign, and ratio represents the ratio coefficient;
if an quantity of information bits of a hybrid automatic repeat request acknowledgement (HARQ-ACK) is greater than 2, Q′ACK represents a quantity of coded modulation symbols of the HARQ-ACK in each transport layer of the PUSCH;
if the quantity of information bits of the HARQ-ACK is 1 or 2, Q′ACK=0;
QCSI,1 represents a quantity of coded modulation symbols of a CSI part 1 in each transport layer of the PUSCH; and
MscΦUCI(l)=|ΦlUCI| represents a quantity of elements in a set ΦlUCI, wherein | | represents an absolute function, ΦlUCI is a set of resource units available for transmitting the UCI in an orthogonal frequency-division multiplexing (OFDM) symbol l, l=0, 1, 2, . . . , Nsymb,allPUSCH−1, and Nsymb,allPUSCH is a quantity of all the OFDM symbols of the PUSCH and comprises a quantity of all symbols occupied by a demodulation reference signal (DMRS).