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A real-time service-oriented component carrier configuration switching method

A component carrier and real-time service technology, applied in the directions of allocation standards, transmission path sub-channel allocation, digital transmission systems, etc., can solve the problem that the spectrum aggregation technology does not consider the real-time service delay requirements and cannot meet the real-time service delay requirements.

Active Publication Date: 2018-03-16
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the spectrum aggregation technology does not consider the delay requirements of real-time services under the existing cognitive radio conditions, so that it cannot meet the delay requirements of real-time services, and proposes a real-time service-oriented component carrier configuration switching method

Method used

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  • A real-time service-oriented component carrier configuration switching method
  • A real-time service-oriented component carrier configuration switching method
  • A real-time service-oriented component carrier configuration switching method

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Experimental program
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specific Embodiment approach 1

[0016] Specific implementation mode one: combine Figure 1 ~ Figure 3 A real-time service-oriented component carrier configuration switching method in this embodiment is described, which is specifically prepared according to the following steps:

[0017] Step 1. Select N component carriers to be aggregated according to the cognitive user data, and obtain the cognitive user transmission time T;

[0018] Step 2. Calculate the mathematical expectation E(T) and variance D(T) of the cognitive user transmission time T according to the arrival rate and service rate of the primary user on the N component carriers to be aggregated;

[0019] Step 3: Calculate the service intensity ρ of the cognitive user according to the mathematical expectation of the cognitive user's transmission time T su , according to ρ su Calculate the average delay T of cognitive user aggregation w ;

[0020] Step 4. If the average time delay T of cognitive user aggregation w Equal to the average delay T exp...

specific Embodiment approach 2

[0027] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 1, N component carriers to be aggregated are selected according to the cognitive user data, and the transmission time T of the cognitive user is obtained as follows:

[0028]

[0029] Among them, F is cognitive user data (unit bit), C is the throughput of all component carriers (unit bps), N is the number of component carriers aggregated during spectrum aggregation, and C i is the throughput of the i-th component carrier (in bps), T i，pu is the master user data transfer time. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0030] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is that: in step two, calculate the mathematical expectation E(T) of the transmission time T of the cognitive user:

[0031]

[0032] Among them, λ i,pu is the arrival rate of the primary user on the i-th component carrier, μ i,pu is the service rate of the primary user on the i-th component carrier. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a real-time service-oriented component carrier configuration and switching method, and relates to a component carrier configuration and switching method; in order to solve the problem that the delay requirement of real-time service cannot be met due to the fact that the delay requirement of the real-time service is not considered in a frequency spectrum polymerization technology under the existing cognitive radio condition, the invention provides the real-time service-oriented component carrier configuration and switching method. The method is realized through the following steps: I, acquiring the transmission time T of a cognitive user; II, calculating the mathematical expectation E (T) and the variance D (T) of the transmission time T of the cognitive user; III, calculating the service intensity Rhosu of the cognitive user according to the mathematical expectation of the transmission time T of the cognitive user, and calculating the average delay Tw when the cognitive user perform polymerization according to the service intensity Rhosu; IV, allocating data of the cognitive user to a corresponding component carrier for transmission, and the like. The real-time service-oriented component carrier configuration and switching method disclosed by the invention is applied to the field of component carrier configuration and switching.

Description

technical field [0001] The invention relates to component carrier configuration and switching methods, in particular to a real-time service-oriented component carrier configuration switching method. Background technique [0002] With the increasing demand of users for wireless transmission bandwidth, the next-generation wireless communication system introduces spectrum aggregation technology to support wider wireless bandwidth and meet the requirements of the next-generation wireless communication system for transmission bandwidth. Spectrum aggregation is continuous or discontinuous through aggregation Spectrum bandwidth to meet the transmission bandwidth requirements of the next generation wireless communication system. At the same time, for the problem that the wireless communication system may not have enough wireless spectrum bandwidth for spectrum aggregation, cognitive radio technology is introduced to solve the problem of not having enough wireless spectrum bandwidth....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/003H04L5/0058
Inventor 徐玉滨洑云海马琳张文彬崔扬刘宁庆
Owner HARBIN INST OF TECH
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