Method for packet-based cell access and selection in M2M communication

A cell access, cell access technology, applied in access restriction, wireless communication, machine-to-machine/machine-type communication services, etc. Avoid blocking and avoid the effect of signaling storms

Active Publication Date: 2017-04-26
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Due to the characteristics of M2M communication above, especially considering the characteristics of massive MTCDs, it is obviously unreasonable for multiple MTCDs to access the macro cell at the same time, because the number of devices that each macro cell can accommodate is limited, and so many devices Simultaneously sending access requests to the macro cell base station will bring a lot of signaling overhead
At the same time, the load of the macro base station is too heavy, and the surrounding small base stations may not have enough users, resulting in unbalanced load and the resulting waste of energy

Method used

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  • Method for packet-based cell access and selection in M2M communication
  • Method for packet-based cell access and selection in M2M communication

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Embodiment Construction

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0054] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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Abstract

The invention provides a method for packet-based cell access and selection in M2M communication. The method includes Machine Type Communications Devices (MTCD)s are grouped according to service characteristics of the MTCDs, and a head MTCD is determined for each group; the head MTCD devices send access request signaling to a base station, and the base station broadcast its own status information after receiving the access request signaling, wherein the status information includes available subcarrier and remaining power space of each subcarrier; and the head MTCD judge whether to request access to the base station according to the status information and the service characteristics of all the MTCDs of its group. According to the method for packet-based cell access and selection in M2M communication, the MTCDs which have the same service and are close in distance are grouped, application and selection of cell access are performed using group as a unit, a signaling storm generated in mass separate application of MTCDs can be avoided, and congestion of a PUCCH is effectively avoided.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a group-based cell access and selection method in M2M communication. Background technique [0002] With the rapid development of M2M (Machine to machine, machine to machine) business, the integration of M2M and LTE-A (LTE-Advanced) network is an inevitable trend of future communication development, and it is also an important part of the fifth generation mobile communication (5G). An important application scenario. But this also poses some new challenges to the M2M communication based on the LTE-A network. Since there are a large number of M2M devices and mainly communicate in the uplink, uplink resource scheduling is one of the main problems to be solved urgently. [0003] M2M communication has the following characteristics: [0004] The number of M2M devices is huge, several orders of magnitude higher than the number of H2H (human-to-human, human-to-hu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/00H04W48/10H04W48/20
CPCH04W4/70H04W48/10H04W48/20
Inventor 徐少毅
Owner BEIJING JIAOTONG UNIV
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