US 2019/0174502 A1 · DATA TRANSMISSION METHOD AND DEVICE

Abstract

Embodiments of the present invention relate to the communications field, and disclose a data transmission method and device to resolve a problem that a success rate of receiving data by an MTC terminal is relatively low after an SC-PTM technology is introduced. A specific solution is as follows: A base station device sends first control information to a terminal device, where the first control information is used to control repeated transmission of multicast service data; and the base station device sends the multicast service data to the terminal device according to the first control information. The present invention is used in a data transmission process.

Claims17

Dependent claims

A data transmission method, comprising:

sending, by a base station device, first control information to a terminal device, the first control information being used to control retransmission of multicast service data;
and
sending, by the base station device, the multicast service data to the terminal device according to the first control information.

A data transmission apparatus, comprising:

a memory storing instructions;
a processor coupled to the memory, the processor executing the instructions to determine first control information, the first control information being used to control retransmission of multicast service data;
and
a transmitter coupled to the processor, the transmitter configured to send the first control information to a terminal device, and send the multicast service data to the terminal device according to the first control information.

1 more element

A data transmission apparatus, comprising:

a memory storing instructions;
a receiver configured to receive first control information sent by a base station device, the first control information being used to control retransmission of multicast service data;
and
a processor coupled to the memory and to the receiver, the processor executing the instructions to determine a retransmission parameter for the multicast service data according to the first control information;
the receiver being further configured to receive the multicast service data according to the retransmission parameter.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/271,479Filed 8 Feb 2019

Priority

12 Aug 2016

Published

6 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA
H04L 1/08
Arrangements for detecting or preventing errors in the information received: by repeating transmission, e.g. Verdan system
H04L 1/189
Arrangements specially adapted for the transmitter end: transmission or retransmission of more than one copy of a message
H04W 4/06
Services specially adapted for wireless communication networks; Facilities therefor: selective distribution of broadcast services, e.g. multimedia…

Data transmission method and device

Life of this patent

Data transmission method and device

Life of this patent

Abstract

Claims17