CPC H04W 72/121 (2013.01) [H04W 72/1263 (2013.01); H04W 72/23 (2023.01); H04W 92/18 (2013.01)] | 18 Claims |
1. A data transmission method comprising:
sending, by a network device, first downlink control information to a first terminal device and a second terminal device, wherein the first downlink control information comprises first transmission configuration information, the first transmission configuration information indicates a sidelink resource and/or a sidelink transmission parameter used by the first terminal device to send first data to the second terminal device, a destination receive end of the first data is the network device, and the first terminal device and the second terminal device belong to a same cooperation group; and
sending, by the network device, second downlink control information to the first terminal device and the second terminal device, wherein the second downlink control information comprises second transmission configuration information, the second transmission configuration information indicates an uplink resource and/or an uplink transmission parameter used by the first terminal device and/or the second terminal device to send the first data to the network device, and the network device uses the second downlink control information to notify the first terminal device and the second terminal device of an identity of a transmission mode used by the second terminal device to send the first data to the network device.
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