US 2016/0366008 A1 · DATA RETRANSMISSION METHOD AND APPARATUS

Abstract

Embodiments of the present invention relate to the communications field, and provide a data retransmission method and apparatus, which can improve efficiency of data retransmission and reduce a retransmission delay. The method includes: sending, by a splitting end apparatus, data to a convergence end apparatus by using a first link; and when it is determined that a data unit that is not received by the convergence end apparatus exists in the data, instructing, by the splitting end apparatus, the first link to stop transmitting, to the convergence end apparatus, the data unit that is not received by the convergence end apparatus, and retransmitting the data unit to the convergence end apparatus by using a second link. The embodiments of the present invention are used for data retransmission.

Claims24

Dependent claims

A splitting end apparatus, comprising:

a sending unit, configured to send data to a convergence end apparatus by using a first link;
an instruction unit, configured to instruct the first link to stop transmitting, to the convergence end apparatus, a data unit that is not received by the convergence end apparatus, wherein the data comprises the data unit;
and
wherein the sending unit is further configured to retransmit the data unit to the convergence end apparatus by using a second link.

1 more element

A convergence end apparatus, comprising:

a sending unit, configured to send, to a splitting end apparatus, a status report indicating a data unit that is not received by the convergence end apparatus, so that the splitting end apparatus instructs, according to the status report, a first link to stop transmitting the data unit to the convergence end apparatus, and retransmits the data unit to the convergence end apparatus by using a second link;
and
wherein the status report comprises indication information of a sequence number of the data unit, and data sent by the splitting end apparatus to the convergence end apparatus by using the first link comprises the data unit.

A data retransmission method, comprising:

sending, by a convergence end apparatus to a splitting end apparatus, a status report indicating a data unit that is not received by the convergence end apparatus, so that the splitting end apparatus instructs, according to the status report, a first link to stop transmitting the data unit to the convergence end apparatus, and retransmits the data unit to the convergence end apparatus by using a second link;
and
wherein the status report comprises indication information of a sequence number of the data unit, and data sent by the splitting end apparatus to the convergence end apparatus by using the first link comprises the data unit.

Dependencies are inferred from the claim text.

Facts

Application

15/248,458Filed 26 Aug 2016

Priority

28 Feb 2014

Published

15 Dec 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04L 41/0668
Using network fault recovery: by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
H04L 1/1825
Automatic repetition systems, e.g. Van Duuren systems: adaptation of specific ARQ protocol parameters according to transmission conditions
H04L 1/1832
Arrangements specially adapted for the receiver end: details of sliding window management
H04L 1/1867
Automatic repetition systems, e.g. Van Duuren systems: arrangements specially adapted for the transmitter end

Data retransmission method and apparatus

Life of this patent

Data retransmission method and apparatus

Life of this patent

Abstract

Claims24