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td‑lte public network cluster multimedia service uplink resource scheduling method

A multimedia service and resource scheduling technology, applied in the field of resource scheduling, can solve problems such as no solution, low service throughput, and low spectrum utilization rate, and achieve the effect of improving spectrum utilization rate, throughput, and good performance

Active Publication Date: 2018-01-30
HARBIN INST OF TECH
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Problems solved by technology

Existing resource scheduling methods generally have the problems of low spectrum utilization and low throughput of each service
[0003] In LTE-based cluster communication, different users have different priorities. Concurrent multimedia services need to consider priorities and have better performance. How to add different priorities to existing algorithms and maintain better performance? The existing technology There is no corresponding technical means to solve this technical problem

Method used

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  • td‑lte public network cluster multimedia service uplink resource scheduling method
  • td‑lte public network cluster multimedia service uplink resource scheduling method
  • td‑lte public network cluster multimedia service uplink resource scheduling method

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specific Embodiment approach 1

[0028] Specific implementation mode one: as figure 1 As shown, this embodiment describes the TD-LTE public network cluster multimedia service uplink resource scheduling method:

[0029] Assume that in a cell network, the uplink bandwidth is divided into M RBs, and there is one base station and N active wireless users. The base station can allocate M RBs to the N users. In each transmission time interval, RBs satisfying multiple continuity constraints are allocated to the same user, but each RB can only be allocated to one user at most. We assume that the channel is in the case of Rayleigh fading, and the uplink transmission time interval is 1ms, which contains two 0.5ms time slots. Users of this system have different priorities and the system is dynamic, which is allocated to different users The resources need to be mapped in combination with the buffer sizes of different users.

[0030] Assume that in a cell network, the uplink bandwidth is divided into M RBs, and there is...

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Abstract

A TD‑LTE public network cluster multimedia service uplink resource scheduling method relates to the technical field of TD‑LTE wireless communication. The present invention aims to realize different priorities of TD‑LTE public network cluster multimedia services and maintain better performance. Establish a metric matrix with priority, and establish a matrix G of the difference between the metric value and the envelope metric value of a user in different resource blocks; calculate the cumulative metric value B of all combinations that meet the continuity constraints in the matrix G; select a The combination of the smallest B; convert the matrix G with RC as the minimum allocation unit to the matrix H with RB as the minimum allocation unit; if a user fails to transmit on some specific RBs, further determine the resource allocation plan; compare the allocation of a user If the total amount of data is less than or equal to the amount of data in the buffer area, the scheduling of the resource allocation scheme ends; otherwise, edge blocks are pruned and allocated to adjacent users in the spectrum until the condition is met. The application of the method of the invention improves spectrum utilization and throughput.

Description

technical field [0001] The invention relates to a resource scheduling method, and relates to the technical field of TD-LTE wireless communication. Background technique [0002] TD-LTE public network cluster multimedia service uplink resources often need to realize concurrent data transmission of different users, which requires consideration of fairness and priority of different users, and certain users cannot transmit data at all because of priority. Through reasonable wireless resource management, the parallel transmission of various multimedia services with different priorities and QoS requirements can be realized. Existing resource scheduling methods generally have the problems of low frequency spectrum utilization and low throughput of each service. [0003] In LTE-based cluster communication, different users have different priorities. Concurrent multimedia services need to consider priorities and have better performance. How to add different priorities to existing algo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12
CPCH04L5/0055H04W72/566H04W72/56
Inventor 吴少川袁钟达赵震
Owner HARBIN INST OF TECH
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