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Method and device for carrying out data multicasting in batches in wireless multicasting system

A multicast service center and wireless technology, applied in the transmission system, digital transmission system, broadcast service distribution, etc., can solve the problem of low system throughput and achieve the effect of saving the cost of uploading resources

Active Publication Date: 2015-07-08
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the existing multi-cell MBMS solution, in the same TTI (TTI: Transmission Time Interval), the signals of different eNodeBs carry the same data packet, which leads to low system throughput

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  • Method and device for carrying out data multicasting in batches in wireless multicasting system
  • Method and device for carrying out data multicasting in batches in wireless multicasting system
  • Method and device for carrying out data multicasting in batches in wireless multicasting system

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Embodiment Construction

[0050] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0051] figure 1 A wireless multicast system topology diagram illustrating an aspect of the present invention is shown. The wireless multicast system includes: user equipment 11 , user equipment 12 , . . . user equipment 1N, base station 21 , base station 22 , . . . base station 2M, and multicast service center 3 . Wherein, each user equipment can be any kind of electronic equipment capable of communicating with their respective base stations, including but not limited to: mobile phones, PDAs, etc.; each base station includes but not limited to: e-NodeB; the multicast service center 3 can It is any electronic device capable of communicating with each base station, including but not limited to: eBM-SC, and the multicast system includes but not limited to: 3G or LTE-based MBSFN network system, etc.

[0052] figure 2 A flowchart showing a method for batch dat...

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Abstract

The invention relates to a method and device as well as a system for carrying out data multicasting in batches in a wireless multicasting system. The method comprises the following steps: a multicasting service center carries out network coding on K original data packets of the current batch and then continuously distributes the K original data packets to base stations, then the base stations cast the K original data packets to user equipment serving as multicasting members in respective residential areas in a multiple manner; the user equipment reserves received correct coding data packets, abandons error coding data packets, and feeds back an ACK (Acknowledgement) response to the subordinate base stations after the network coding is decoded on the reserved coding data packets; and after receiving the ACK response transmitted by all the user equipment serving the multicasting members through the respective base stations, the multicasting service center users the original data packets of the next batch as the original data packets of the current batch and begins to carry out a new round of multicasting operation. The method has the advantages: the throughout capacity of arbitrary multicasting sessions can be achieved and the expenditure of uploading resources can be effectively saved.

Description

technical field [0001] The invention relates to the field of wireless multicasting, in particular to a method and equipment for performing data multicasting in batches in a wireless multicasting system. Background technique [0002] 3GPP defines Multimedia Multicast and Broadcast Service (MBMS), which is a major enhancement in the downlink of the 3G standard. MBMS focuses on the efficient management of radio and core network resources, while reusing existing functional bodies as much as possible. According to the number of serving cells, MBMS can be divided into single-cell service and multi-cell service. In multi-cell service, one MBMS cell contains multiple common cells. [0003] In the existing multi-cell MBMS solution, in the same TTI (TTI: Transmission Time Interval), signals of different eNodeBs carry the same data packet, which leads to too low system throughput. Contents of the invention [0004] The object of the present invention is to provide a method, device...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04L1/00
Inventor 尚瑜兰岚张靖
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD