| CPC H04L 1/1678 (2013.01) [H04L 1/0004 (2013.01); H04L 1/001 (2013.01); H04L 1/1812 (2013.01); H04W 72/23 (2023.01)] | 20 Claims |

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1. A method, applied to a terminal device or a chip in the terminal device, the method comprising:
receiving downlink control information from a network device, wherein the downlink control information is capable of scheduling a maximum of four transport blocks (TBs), the downlink control information comprises 10 bits, the 10 bits comprise a first bit group and a second bit group, the first bit group comprises seven bits, and the second bit group comprises three bits;
determining, based on the first bit group, a quantity L of TBs scheduled by the downlink control information, and determining an index of a modulation and coding scheme (MCS) based on the first bit group, wherein L is a positive integer;
determining a hybrid automatic repeat request (HARQ) process number and new data indicator (NDI) information of each TB in the L TBs, wherein NDI information of at least one TB of the LTBs is determined according to the second bit group; and
performing the following:
sending the L TBs based on the determined HARQ process number and the NDI information of the each TB in the L TBs, and based on the index of the MCS; or
receiving the L TBs based on the determined HARQ process number and NDI information of the each TB in the L TBs, and based on the index of the MCS.
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