IP Library › Granted Patent US 12684558
Granted Patent B2
US 12684558 · App. 18/274,825 · Granted Jul 14, 2026

Cross-carrier channel repetition transmission method and apparatus, storage medium, terminal, and network device

Inventor: Zhenzhu Lei (Zhangjiang, CN)
Assignee: SPREADTRUM SEMICONDUCTOR (NANJING) CO., LTD.
H04W72/1263H04L1/08
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Quick Facts
Patent No.
US 12684558
App. No.
18/274,825
Granted
Jul 14, 2026
Kind
B2
Abstract

A cross-carrier channel repetition transmission method and apparatus, a storage medium, a terminal, and a network device are provided. The method includes: receiving a scheduling instruction for data transmission from a network device, wherein the scheduling instruction indicates that cross-carrier scheduling/cross-carrier transmission occurs in a current data transmission; and determining a number of channel repetition transmissions for the current data transmission based on a number of channel repetition transmissions of an original carrier and/or a target carrier; wherein the cross-carrier scheduling includes that the network device transmits the scheduling instruction on the original carrier and instructs a terminal to perform data transmission on the target carrier, and the cross-carrier transmission includes that the network device transmits the scheduling instruction on the original carrier and instructs the terminal to perform data transmission on the original carrier and the target carrier.

Claims (44)

1 . A cross-carrier channel repetition transmission method, comprising:

receiving a scheduling instruction for data transmission from a network device, wherein the scheduling instruction indicates that cross-carrier transmission occurs in a current data transmission; and

determining a number of channel repetition transmissions for the current data transmission based on a number of channel repetition transmissions of an original carrier and/or a target carrier;

wherein the cross-carrier transmission comprises that the network device transmits the scheduling instruction on the original carrier and instructs a terminal to perform data transmission on the original carrier and the target carrier; and

wherein following determining the number of channel repetition transmissions for the current data transmission based on the number of channel repetition transmissions of the original carrier and/or the target carrier, the method further comprises:

determining to perform data transmission on the original carrier with the network device for a portion of the number of channel repetition transmissions for the current data transmission; and

determining to perform data transmission on the target carrier with the network device for remaining of the number of channel repetition transmissions for the current data transmission; or

wherein said determining the number of channel repetition transmissions for the current data transmission based on the number of channel repetition transmissions of the original carrier and/or the target carrier comprises:

determining a number of actual repetition transmissions for data transmitted on the original carrier in the current data transmission based on the number of channel repetition transmissions of the original carrier; and

determining a number of actual repetition transmissions for data transmitted on the target carrier in the current data transmission based on the number of channel repetition transmissions of the original carrier.

2 . The method according to claim 1 , wherein the scheduling instruction further indicates an index of a transmission coefficient, and the method further comprises:

determining the transmission coefficient based on the index of the transmission coefficient, wherein the transmission coefficient indicates a ratio of a number of actual channel repetition transmissions of the original carrier/target carrier in the current data transmission to the number of channel repetition transmissions for the current data transmission; and

determining, based on the transmission coefficient, the number of actual channel repetition transmissions of the original carrier in the current data transmission, and the number of actual channel repetition transmissions of the target carrier in the current data transmission.

3 . The method according to claim 2 , wherein said determining, based on the transmission coefficient, the number of actual channel repetition transmissions of the original carrier in the current data transmission, and the number of actual channel repetition transmissions of the target carrier in the current data transmission comprises:

calculating a product of the number of channel repetition transmissions for the current data transmission and the transmission coefficient, and determining the number of actual channel repetition transmissions of one of the original carrier and target carrier in the current data transmission based on the product; and

calculating a difference between the number of channel repetition transmissions for the current data transmission and the product, and determining the number of actual channel repetition transmissions of the other of the original carrier and target carrier in the current data transmission based on the difference.

4 . The method according to claim 3 , wherein a maximum one among the number of channel repetition transmissions of the original carrier and the number of channel repetition transmissions of the target carrier is selected, and the number of channel repetition transmissions for the current data transmission is determined based on the maximum one.

5 . The method according to claim 3 , wherein the number of channel repetition transmissions for the current data transmission is determined to be the number of channel repetition transmissions of one of the original carrier and the target carrier based on the transmission coefficient.

6 . The method according to claim 2 , wherein said determining, based on the transmission coefficient, the number of actual channel repetition transmissions of the original carrier in the current data transmission, and the number of actual channel repetition transmissions of the target carrier in the current data transmission comprises:

calculating a product of the number of channel repetition transmissions of one of the original carrier and the target carrier and the transmission coefficient, as the number of actual channel repetition transmissions of the one carrier;

calculating a difference between 1 and the transmission coefficient, and recording the difference as an intermediate coefficient; and

calculating a product of the number of channel repetition transmissions of the other of the original carrier and the target carrier and the intermediate coefficient, as the number of actual channel repetition transmissions of the other carrier.

7 . The method according to claim 1 , wherein the scheduling instruction further indicates data transmitted on the original carrier and/or data transmitted on the target carrier for the current data transmission.

8 . The method according to claim 1 , wherein the data partly takes Transport Block (TB) as a granularity unit.

9 . The method according to claim 1 , wherein the scheduling instruction is scheduling information carried in Downlink Control Information (DCI) and/or a random access response.

10 . The method according to claim 1 , wherein channels for the current data transmission at least comprise Physical Uplink Shared Channel (PUSCH) and Physical Downlink Shared Channel (PDSCH).

11 . A non-transitory storage medium storing one or more programs, the one or more programs comprising computer instructions, which, when executed by a processor, cause the processor to:

receive a scheduling instruction for data transmission from a network device, wherein the scheduling instruction indicates that cross-carrier transmission occurs in a current data transmission; and

determine a number of channel repetition transmissions for the current data transmission based on a number of channel repetition transmissions of an original carrier and/or a target carrier;

wherein the cross-carrier transmission comprises that the network device transmits the scheduling instruction on the original carrier and instructs a terminal to perform data transmission on the original carrier and the target carrier; and

wherein the processor is further caused to:

following determining the number of channel repetition transmissions for the current data transmission based on the number of channel repetition transmissions of the original carrier and/or the target carrier, determine to perform data transmission on the original carrier with the network device for a portion of the number of channel repetition transmissions for the current data transmission; and determine to perform data transmission on the target carrier with the network device for remaining of the number of channel repetition transmissions for the current data transmission; or

wherein the processor is caused to:

determine a number of actual repetition transmissions for data transmitted on the original carrier in the current data transmission based on the number of channel repetition transmissions of the original carrier; and

determine a number of actual repetition transmissions for data transmitted on the target carrier in the current data transmission based on the number of channel repetition transmissions of the original carrier.

12 . A terminal, comprising a memory and processor, wherein the memory stores one or more programs, the one or more programs comprising computer instructions, which, when executed by the processor, cause the processor to:

receive a scheduling instruction for data transmission from a network device, wherein the scheduling instruction indicates that cross-carrier transmission occurs in a current data transmission; and

determine a number of channel repetition transmissions for the current data transmission based on a number of channel repetition transmissions of an original carrier and/or a target carrier;

wherein the cross-carrier transmission comprises that the network device transmits the scheduling instruction on the original carrier and instructs a terminal to perform data transmission on the original carrier and the target carrier; and

wherein the processor is further caused to:

following determining the number of channel repetition transmissions for the current data transmission based on the number of channel repetition transmissions of the original carrier and/or the target carrier, determine to perform data transmission on the original carrier with the network device for a portion of the number of channel repetition transmissions for the current data transmission; and determine to perform data transmission on the target carrier with the network device for remaining of the number of channel repetition transmissions for the current data transmission; or

wherein the processor is caused to:

determine a number of actual repetition transmissions for data transmitted on the original carrier in the current data transmission based on the number of channel repetition transmissions of the original carrier; and

determine a number of actual repetition transmissions for data transmitted on the target carrier in the current data transmission based on the number of channel repetition transmissions of the original carrier.