Prioritized random access method, resource allocation method and collision resolution method

A technology of random access and resource allocation, applied in the field of collision resolution, which can solve the problems of connection establishment failure, collision, huge load of base station, etc.

Active Publication Date: 2012-10-31
IND TECH RES INST
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Problems solved by technology

[0004] In addition, when a large number of MTC devices require to establish connection with the same base station at the same time, this situation may cause a huge load on the base station
On the other hand, in a shared wireless medium, MTC devices with the above-mentioned form of connection establishment requests are more likely to cause collisions, and after each collision, MTC devices must perform random backoff processes for the next co

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  • Prioritized random access method, resource allocation method and collision resolution method
  • Prioritized random access method, resource allocation method and collision resolution method
  • Prioritized random access method, resource allocation method and collision resolution method

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[0060] The present disclosure will be described in further detail below in conjunction with the accompanying drawings.

[0061] Exemplary embodiments will be described in more detail below with accompanying drawings; some (but not all) embodiments of the present disclosure are shown in the drawings, however, they can be implemented in different forms and are not limited hereto Examples described. Rather, these examples are intended to provide a thorough and complete disclosure and to satisfy applicable statutory requirements. The same reference numerals refer to the same components throughout.

[0062] In this disclosure, a wireless communication device may represent a user equipment (UE), a mobile station, an advanced mobile station, a wireless terminal communication device, an M2M device, an MTC device, and the like. For example, a wireless communication device may be a digital television, a digital set-top box, a personal computer, a notebook computer, a tablet computer, ...

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Abstract

A prioritized random access method, a resource allocation method, and a collision resolution method are proposed for wireless communication devices with different priority levels pre-assigned according to their respective service requirements. In the prioritized random access method, different priorities are assigned to connection requirements of wireless communication devices according to their respective service characteristics. Collision resolution mechanisms of the prioritized random access method enable establishing connections of different service requirements such as time strict, delay tolerant, and normal user service. The resource allocation method allows different types of contention accesses have different collision opportunities and connection setup delays, and also enables dynamical adjustment in resource allocation according to practical application requirements, the number of MTC devices and system loading. Thus, resource utilization rate of the overall wireless communication network is enhanced.

Description

technical field [0001] The present disclosure relates to a priority random access method, a resource allocation method and a collision resolution method applied to wireless communication devices pre-assigned with different priority levels according to different service requirements. Background technique [0002] Machine-type-communication (MTC) or machine-to-machine (M2M) communication is a unique communication technology that can realize the "Internet of things (IOT)". MTC is defined as an information exchange between a user device (or a wireless communication device) and a server via a wireless communication network, or between user devices without human-computer interaction. Many industry reports point out that the market potential of MTC is huge. Due to the huge market potential of MTC, several wireless communication systems such as 3GPP Long Term Evolution (3GPP LTE) and IEEE 802.16 have begun to develop communication protocols that can apply MTC and are backward compa...

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Application Information

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IPC IPC(8): H04W74/08H04W4/70
CPCH04W74/004H04W74/0841H04W28/042H04W4/005H04W72/04H04W4/70
Inventor 林咨铭
Owner IND TECH RES INST
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