Data transmission method and related device
AssigneeHuawei Technologies Co., Ltd.
InventorsChuting Yao, Haibo Xu, Jian Wang
Life of this patent
Estimating the term…
Abstract
A data transmission method and related devices. The method includes: handing over a first terminal device from a second terminal device to a network device; receiving, by the first terminal device, a first packet data convergence protocol (PDCP) data packet sent by the network device; and if the first PDCP data packet is a target PDCP data packet, submitting, by the first terminal device, a second PDCP data packet, where the target PDCP data packet is a PDCP data packet sent by the network device based on a transmission status report, and the transmission status report is a status report sent by the first terminal device or the second terminal device to the network device.
Claims19
A data transmission method, comprising:
- handing over a first terminal device from a second terminal device to a network device;
- receiving, by the first terminal device, a first packet data convergence protocol (PDCP) data packet sent by the network device;
- and
- if the first PDCP data packet is a target PDCP data packet, submitting, by the first terminal device, a second PDCP data packet, wherein
- the target PDCP data packet is a PDCP data packet sent by the network device based on a transmission status report, and the transmission status report is a status report sent by the first terminal device or the second terminal device to the network device, and used to feed back a receiving status of data that is sent by the network device to the first terminal device by using the second terminal device before the first terminal device is handed over to the network device, and the second PDCP data packet is PDCP data packets that start with a count value of the first PDCP data packet, and the second PDCP data packet is counted successive to the count value of the first PDCP data packet.
A plurality of terminal devices, each of the plurality of terminal devices comprising:
- a processor;
- a memory;
- and a transceiver, the memory is configured to store program code, and the plurality of terminal devices include a first terminal device and a second terminal device,
- the processor of the first terminal device is configured to execute the program code to perform the following operations:
- performing a process of handover from a second terminal device to a network device;
- receiving, by using the transceiver, a first PDCP data packet sent by the network device;
- and if the first PDCP data packet is a target PDCP data packet, submitting a second PDCP data packet,
- wherein the target PDCP data packet is a PDCP data packet sent by the network device based on a transmission status report, and the transmission status report is a status report sent by the first terminal device or the second terminal device to the network device, and used to feed back a receiving status of data that is sent by the network device to the first terminal device by using the second terminal device before the first terminal device is handed over to the network device, and the second PDCP data packet is PDCP data packets that start with a count value of the first PDCP data packet, and the second PDCP data packet is counted successive to the count value of the first PDCP data packet.
Dependencies are inferred from the claim text.