IP Library › Granted Patent US 12,245,236

Granted Patent B2

US 12,245,236 · App. 16/960,184 · Granted Mar 4, 2025

Method and apparatus of determining cap of transmission resources available for control information and communication apparatus

Inventors: Qianqian Si (Beijing, CN); Xuejuan Gao (Beijing, CN)

Assignee: Datang Mobile Communications Equipment Co., Ltd.

H04W72/21 H04L1/1812 H04L5/0048 H04L27/2601

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Quick Facts

Patent No.: US 12,245,236
App. No.: 16/960,184
Granted: Mar 4, 2025
Kind: B2

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Abstract

Provided are a method and an apparatus of determining a cap of transmission resources available for control information and a communication device. The method of determining a cap of transmission resources available for control information includes: determining, according to a ratio coefficient, a cap of transmission resources to be occupied by coded modulation symbols of control information on a physical uplink shared channel (PUSCH).

Claims (351)

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:

⌈

∑

symb

all

PUSCH

⁢

UCI

⁡

(

)

ratio

⌉

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, M sc Φ UCI (l)=|Φ l UCI | represents a quantity of elements in a set Φ l UCI , | | represents an absolute function, Φ l UCI 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, . . . , N symb,all PUSCH −1 and N symb,all PUSCH 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:

⌈

(

∑

symb

all

PUSCH

⁢

UCI

⁡

(

)

ratio

⌉

⁢

′

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,

⁢

′

∑

symb

all

PUSCH

⁢

⁡

(

)

wherein Φ l rvd 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, . . . , N symb,all PUSCH −1, and M sc,rvd Φ (l)=| Φ l rvd | represents a quantity of elements in Φ l rvd ; | | represents an absolute function, and

M sc Φ UCI (l)=|Φ l UCI | represents a quantity of elements in a set Φ l UCI , wherein | | represents an absolute function, Φ l UCI is a set of resource units available for transmitting the UCI in the OFDM symbol l, l=0, 1, 2, . . . , N symb,all PUSCH −1, and N symb,all PUSCH 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:

(

⌈

(

∑

symb

all

PUSCH

⁢

UCI

⁡

(

)

ratio

⌉

⁢

′

CSI

′

)

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 the quantity of information bits of the HARQ-ACK is 1 or 2, Q′ ACK =0;

Q CSI,1 represents a quantity of coded modulation symbols of a CSI part 1 in each transport layer of the PUSCH; and

M sc Φ UCI (l)=|Φ l UCI | represents a quantity of elements in a set Φ l UCI , wherein | | represents an absolute function, Φ l UCI is a set of resource units available for transmitting the UCI in an orthogonal frequency-division multiplexing (OFDM) symbol l, l=0, 1, 2, . . . , N symb,all PUSCH −1, and N symb,all PUSCH 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).

2. The method according to claim 1 , wherein the ratio coefficient is a ratio coefficient configured by a base station by using higher layer signaling.

3. The method according to claim 1 , 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 the cap of the quantity of coded modulation symbols of control information of a type of the UCI on the PUSCH according to the ratio coefficient corresponding to the type of the UCI.

4. The method according to claim 1 , 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 the cap of the quantity of coded modulation symbols of control information with a quantity of bits of the UCI on the PUSCH according to the ratio coefficient corresponding to the quantity of bits of the UCI.

5. The method according to claim 1 , wherein N symb,all PUSCH is a maximum quantity N symb,max UCI of OFDM symbols used for transmitting the UCI in the PUSCH, and N symb,max UCI is a value predefined in a protocol or configured by a base station by using higher layer signaling and is less than or equal to N symb,all PUSCH .

6. A communication device, comprising: a processor and a storage including a program, the program stored in the storage being executed by the processor, wherein the processor is configured to execute the program to implement the following step:

calculating, according to a ratio coefficient, a cap of a quantity of coded modulation symbols of control information on a physical uplink shared channel (PUSCH);

wherein the processor is specifically configured to execute the program to implement the following step:

calculating, when a hybrid automatic repeat request acknowledgement (HARQ-ACK) is mapped onto the PUSCH with or without uplink-shared channel (UL-SCH) data, the cap of the quantity of coded modulation symbols of the HARQ-ACK in each transport layer according to the following formula:

⌈

∑

symb

all

PUSCH

⁢

UCI

⁡

(

)

ratio

⌉

or,

the processor is specifically configured to execute the program to implement the following step:

⌈

(

∑

symb

all

PUSCH

⁢

UCI

⁡

(

)

ratio

⌉

⁢

′

if the quantity of information bits of the HARQ-ACK is 1 or 2,

⁢

′

∑

symb

all

PUSCH

⁢

⁡

(

)

or,

the processor is specifically configured to execute the program to implement the following step:

(

⌈

(

∑

symb

all

PUSCH

⁢

UCI

⁡

(

)

ratio

⌉

⁢

′

CSI

′

)

if the quantity of information bits of the HARQ-ACK is 1 or 2, Q′ ACK =0;

Q CSI,1 represents a quantity of coded modulation symbols of a CSI part 1 in each transport layer of the PUSCH; and

M sc Φ UCI (l)=|Φ l UCI | represents a quantity of elements in a set Φ l UCI , wherein | | represents an absolute function, Φ l UCI is a set of resource units available for transmitting the UCI in an orthogonal frequency-division multiplexing (OFDM) symbol l, l=0, 1, 2, . . . , N symb,all PUSCH −1, and N symb,all PUSCH 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).

7. The communication device according to claim 6 , wherein the ratio coefficient is a ratio coefficient configured by a base station by using higher layer signaling.

8. The communication device according to claim 6 , wherein the processor is specifically configured to execute the program to implement the following step:

calculating the cap of the quantity of coded modulation symbols of control information of a type of the UCI on the PUSCH according to the ratio coefficient corresponding to the type of the UCI.

9. The communication device according to claim 6 , wherein the processor is specifically configured to execute the program to implement the following step:

10. The communication device according to claim 6 , wherein N symb,all PUSCH is a maximum quantity N symb,max UCI of OFDM symbols used for transmitting the UCI on the PUSCH, and N symb,max UCI is a value predefined in a protocol or configured by a base station by using higher layer signaling and is less than or equal to N symball PUSCH .

11. A non-transitory computer-readable storage medium storing therein a computer program, wherein the program is configured to be executed by a processor, to implement the method of determining the cap of transmission resources available for control information according to claim 1 .

12. The method according to claim 1 , wherein the ratio coefficient is greater than or equal to 0 and is less than 1.

13. The communication device according to claim 6 , wherein the ratio coefficient is greater than or equal to 0 and is less than 1.

Assignments (2)

CHANGE OF NAME Recorded Jul 8, 2021

From: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

To: DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD.

Reel/Frame 056804/0182 →

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 9, 2020

From: SI, QIANQIAN; GAO, XUEJUAN

To: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Reel/Frame 053166/0686 →