Method and device for sending data

A technology for sending data, data packets, applied in digital transmission systems, using return channels for error prevention/detection, electrical components, etc.

Inactive Publication Date: 2018-01-30
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to propose a method and device fo...

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  • Method and device for sending data
  • Method and device for sending data
  • Method and device for sending data

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Embodiment Construction

[0071] The embodiments of the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the embodiments of the present invention.

[0072] refer to figure 1 , figure 1 It is a schematic flowchart of a method for sending data provided by an embodiment of the present invention.

[0073] like figure 1 As shown, the method for sending data includes:

[0074] Step 101, the sending node sends data to at least two receiving nodes at the same time;

[0075] Step 102, the sending node receives feedback information sent by the receiving node, and calculates a modulation and coding strategy according to...

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Abstract

The present invention discloses a method and device for sending data. The method comprises: a sending node sends data to at least two receiving nodes at the same time; the sending node receives feedback information sent by the receiving nodes and calculates a modulation and coding strategy according to the feedback information; and the sending node sends data to the at least two receiving nodes according to the modulation and coding strategy obtained through calculation, so that a link adaptation problem of point-to-multipoint transmission is solved, and air interface efficiency of point-to-multipoint transmission is greatly improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of communication, and in particular, to a method and device for sending data. Background technique [0002] Mobile services are divided into point-to-point services such as unicast services and point-to-multipoint services such as broadcast multicast services and group call services. 3GPP solves the point-to-multipoint service through a unicast (Unicast) mechanism and a broadcast (Broadcast) mechanism. The broadcast mechanism is divided into enhanced multimedia broadcast multicast service (enhanced Multimedia Broadcast Multicast Service, eMBMS) and single cell point to multipoint (Single Cell Point to Multipoint, SC-PTM). For eMBMS and SC-PTM, there is no feedback mechanism of the physical layer at present. Therefore, for error-sensitive data services, the transmission efficiency of the system will be very low. Contents of the invention [0003] The purpose of the embodiments of the...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/16
Inventor 李楚浩谭源春
Owner BEIJING XINWEI TELECOM TECH
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