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Wireless ndn data processing method, device and system

A data processing and wireless technology, applied in the field of communication, can solve the problems of not being able to distinguish which terminals the multicast stream belongs to, not supporting multicast/broadcasting, terminal energy consumption, etc., to achieve efficient multicast reception, solve energy consumption problems, and improve real-time effect

Active Publication Date: 2020-11-17
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the current IEEE 802.11 mechanism distributes multicast / broadcast data through the Delivery Traffic Indication Message (DTIM), the DTIM mechanism will wake up all terminals even if the data does not belong to the terminal, thus causing additional energy for the terminal consume
And the current energy-saving mechanism of IEEE 802.11 does not support multicast / broadcast (broadcast is only a special case of multicast, which will be represented by multicast later) to effectively save energy
Although NDN naturally supports the multicast mechanism, in the current wireless NDN environment, multicast transmission cannot distinguish which terminals the multicast stream belongs to, and all the data is sent in the form of broadcast, which will cause all terminals to be in a wake-up state, which will lead to severe performance problems. consumption challenge

Method used

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  • Wireless ndn data processing method, device and system
  • Wireless ndn data processing method, device and system
  • Wireless ndn data processing method, device and system

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Embodiment 1

[0024] This embodiment discloses a wireless NDN data processing method.

[0025] The present invention uses a wireless NDN local area network environment to illustrate specific implementation methods, but it is not intended to limit the present invention to only be used in wireless NDN local area networks, such as other wireless scenarios: WiFi, Ad-Hoc, IoT, vehicle-mounted networks, wireless sensor networks Wait.

[0026] This embodiment aims at the problem of energy consumption of mobile terminals caused by the existing wireless NDN multicast mechanism, and proposes a wireless NDN multicast energy-saving mechanism based on the PIT state, using the PIT state information to classify the data received by the AP to distinguish between multicast and Unicast data. At the same time, by redefining Bitmap, the TIM mechanism can use Bitmap to represent multicast data, further reducing the energy consumption of existing wireless NDN multicast.

[0027] figure 1It is the data packet ...

Embodiment 2

[0039] This embodiment discloses a wireless NDN data processing system and device, so as to implement the corresponding steps in the foregoing method embodiments. Specifically include:

[0040] A wireless NDN data processing system, including STA and AP, the STA and AP are provided with their own memories, processors, and computer programs stored in the memories and operable on the processors, wherein the STA and the The steps of the above method are realized when the AP cooperates to execute the respective corresponding computer programs.

[0041] To achieve the above object, the present invention also discloses an STA, which is provided with a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the above method is implemented when the processor executes the computer program Steps corresponding to STA in .

[0042] To achieve the above object, the present invention also discloses an AP, which is provided with a memory, a p...

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Abstract

The invention relates to the field of communication technology, and discloses a wireless NDN data processing method, device and system, so as to reduce the energy consumption of wireless terminals. The method of the present invention includes: redefining the Bitmap of 802.11, using the first bit as 0 to indicate unicast data, and using the first bit as 1 to indicate multicast data, and using at least two AID values ​​in different positions in the Partial Virtual Bitmap to represent group Each STA corresponding to the broadcast has cached multicast data; then, the unicast data and multicast data are respectively processed through the redefined Bitmap and the TIM mechanism of 802.11. Correspondingly, when the STA judges that what it is to receive is multicast data according to the multicast identifier, it waits for the multicast data to be sent and avoids sending PS-Poll frames, while other STAs not associated with multicast ignore Beacon frames. Avoid being woken up.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a wireless NDN data processing method, device and system. Background technique [0002] With the rapid development of mobile Internet applications, mobile data traffic is also increasing. Cisco's Visual Networking Index (VNI) forecast shows that the growth rate of global mobile traffic is expected to exceed three times that of global fixed traffic. By 2019, global mobile data traffic will reach 292EB; mobile video will account for global mobile data traffic 72% of. With the demand of mobile terminals for massive data, in order to ensure the availability of end-to-end connections based on IP networks, terminals must maintain available network connections at any time. The conflict between the energy overhead of maintaining a readily available network connection and the energy constraints of mobile terminals brings new challenges to the design of data transfer proto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04L12/18H04W52/02H04L29/08H04L29/12
CPCH04L12/18H04W4/06H04W52/0212H04W52/0216H04L61/50H04L2101/622H04L67/568Y02D30/70
Inventor 阳旺吴帆
Owner CENT SOUTH UNIV
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