Method and apparatus for transmitting uplink transmission and system

Inventors: Qinyan Jiang (Beijing, CN); Tsuyoshi Shimomura (Yokohama, JP); Zhe Chen (Beijing, CN); Lei Zhang (Beijing, CN)

Assignee: 1FINITY Inc.

H04L27/2607 H04W72/04 H04W74/04

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Quick Facts

Patent No.: US 12665797
App. No.: 17/731,367
Granted: Jun 23, 2026
Kind: B2

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Abstract

An apparatus for transmitting uplink transmission, configured in a terminal equipment, includes a receiver configured to receive second indication information, the second indication information being used to indicate a duration of a CP extension corresponding to a second uplink transmission, and processor circuitry configured to transmit the second uplink transmission without transmitting the CP extension.

Claims (26)

1 . An apparatus for transmitting uplink transmission, configured in a terminal equipment, the apparatus comprising:

a receiver configured to receive second indication information, the second indication information being used to indicate a duration of a cyclic prefix (CP) extension corresponding to a second uplink transmission which is after a first uplink transmission, a first one of symbols for the second uplink transmission is next in time to the CP extension corresponding to the second uplink transmission, and the duration of the CP extension being determined, by the terminal equipment, using a length of one or more symbols prior to the first one of symbols for the second uplink transmission, the number of the one or more symbols being indicated by the network device or determined according to timing advance indicated by the network device or determined by the terminal equipment and/or being related to a subcarrier spacing used by the terminal equipment; and

processor circuitry configured to transmit the second uplink transmission without applying the CP extension to the second uplink transmission, in response to determining that the CP extension corresponding to the second uplink transmission overlaps the first uplink transmission and a gap between the second uplink transmission and the first uplink transmission is 0 in time-domain.

2 . The apparatus according to claim 1 , wherein a first signal corresponding to the second uplink transmission does not overlap the first uplink transmission.

3 . The apparatus according to claim 1 , wherein the first uplink transmission and the second uplink transmission are located on the same carrier or located on different carriers.

4 . The apparatus according to claim 1 , wherein the first uplink transmission and the second uplink transmission are respectively one of the following: a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), a physical random access channel (PRACH), and a sounding reference signal (SRS).

5 . The apparatus according to claim 1 , wherein,

the receiver further receives third indication information, the third indication information being used to indicate the duration of the CP extension corresponding to the second uplink transmission; and

the processor circuitry transmits the second uplink transmission according to the duration of the CP extension corresponding to the second uplink transmission indicated by the third indication information.

6 . The apparatus according to claim 5 , wherein the third indication information is after the second indication information.

7 . The apparatus according to claim 5 , wherein the third indication information is carried by physical layer signaling.

8 . The apparatus according to claim 1 , wherein the processor circuitry adjusts the duration of the CP extension corresponding to the second uplink transmission when one or more of the following conditions are satisfied that:

a channel access priority corresponding to the first uplink transmission is lower than or equal to a channel access priority corresponding to the second uplink transmission;

the second uplink transmission is within a channel occupation time (COT) range where the first uplink transmission is in;

the second uplink transmission is within a sub-bandwidth range where the first uplink transmission is in; and

a channel detection result corresponding to the first uplink transmission is idle.

9 . The apparatus according to claim 8 , wherein,

a gap between a first reference symbol corresponding to the first uplink transmission and a second reference symbol corresponding to the second uplink transmission is greater than or equal to a second predetermined number, N 2 , of symbols.

10 . The apparatus according to claim 1 , wherein the CP extension corresponding to the second uplink transmission is before a first signal corresponding to the second uplink transmission, the first signal corresponding to the second uplink transmission belongs to the second uplink transmission, and the CP extension corresponding to the second uplink transmission belongs to or does not belong to the second uplink transmission.

11 . An apparatus for receiving uplink transmission, configured in a network device, the apparatus comprising:

a transmitter configured to transmit second indication information, the second indication information being used to indicate a duration of a cyclic prefix (CP) extension corresponding to a second uplink transmission which is after a first uplink transmission of a terminal equipment, the terminal equipment transmitting the second uplink transmission without applying the CP extension to the second uplink transmission in response to determining that the CP extension corresponding to the second uplink transmission overlaps the first uplink transmission and a gap between the second uplink transmission and the first uplink transmission is 0 in time-domain, a first one of symbols for the second uplink transmission is next in time to the CP extension corresponding to the second uplink transmission, and the duration of the CP extension being determined, by the terminal equipment, using a length of one or more symbols prior to the first one of symbols for the second uplink transmission, the number of the one or more symbols being indicated by the network device or determined according to timing advance indicated by the network device or determined by the terminal equipment and/or being related to a subcarrier spacing used by the terminal equipment; and

a receiver configured to receive the second uplink transmission.

12 . The apparatus according to claim 11 , wherein, the transmitter further transmits third indication information, the third indication information being used to indicate the duration of the CP extension corresponding to the second uplink transmission, and the terminal equipment transmits the second uplink transmission according to the duration of the CP extension corresponding to the second uplink transmission indicated by the third indication information.

13 . The apparatus according to claim 11 , wherein the CP extension corresponding to the second uplink transmission is before a first signal corresponding to the second uplink transmission, the first signal corresponding to the second uplink transmission belongs to the second uplink transmission, and the CP extension corresponding to the second uplink transmission belongs to or does not belong to the second uplink transmission.

14 . The apparatus according to claim 12 , wherein the third indication information is after the second indication information.

15 . The apparatus according to claim 1 , wherein the second indication information being included in downlink control information (DCI) used for scheduling the second uplink transmission.