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Resource allocation method and device

A resource allocation and resource technology, applied in the field of resource allocation of wireless resources, can solve problems such as affecting the overall performance of LTE, large amount of SDU data, and easily destroying the integrity of SDU, so as to reduce overhead and the possibility of retransmission, The effect of protecting integrity and reducing overhead

Inactive Publication Date: 2015-08-26
이노피데이인코포레이티드 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] This application provides a resource allocation method and device for wireless resources to solve the problem that the existing scheduler resource allocation and scheduling schemes are easy to destroy the integrity of the SDU, so that the amount of transmitted SDU data is relatively large, which affects the overall performance of LTE

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  • Resource allocation method and device

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Experimental program
Comparison scheme
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Embodiment 1

[0029] Reference figure 1 , Shows a flowchart of the steps of a resource allocation method according to the first embodiment of the present application.

[0030] The resource allocation method of this embodiment includes the following steps:

[0031] Step S102: After obtaining the uplink authorization, determine whether the variable Bj of each RB is greater than 0.

[0032] Bj is used to identify the length of radio resources that need to be allocated to the RB. When RB is not authorized, Bj is the product of RB's PBR (Prioritised Bit Rate) and TTI (Transmission Time Interval), which represents the data length that needs to be allocated to RB in the first round during current scheduling. Bj will gradually increase over time. After allocating resources for the RB, Bj will be updated, and the resource value allocated for the RB is subtracted from the original Bj. Bj can be a negative value.

[0033] Step S104: For each RB whose Bj is greater than 0, obtain the SDU segment length that...

Embodiment 2

[0041] Reference figure 2 , Shows a flowchart of the steps of a resource allocation method according to the second embodiment of the present application.

[0042] The resource allocation scheme of this embodiment is based on the basic framework of two rounds of scheduling. The first round of scheduling is for the PBR result Bj, for Bj> 0 RB, the UL grant resources are allocated to each RB according to the Bj result and the SDU length vector according to the priority order of the RB; the specific scheduling scheme can refer to the above figure 1 Description of the illustrated embodiment. If all channels are satisfied before the UL grant resources are exhausted, the second round of scheduling can be entered; the second round of scheduling will allocate the remaining UL grant resources to each RB that still has data to be sent in the order of RB priority .

[0043] The resource allocation method of this embodiment includes the following steps:

[0044] Step S202: B> An RB of 0 genera...

Embodiment 3

[0066] Reference image 3 , Shows a flowchart of the steps of a resource allocation method according to the third embodiment of the present application.

[0067] This embodiment still uses the basic framework based on two-round scheduling to introduce the resource allocation method of this embodiment from the two-round scheduling level. It should be noted that whether two rounds of scheduling are required can be determined in the following ways:

[0068] Th Step 1 = ∑ n = 0 N - 1 min ( L Total 1 ( n ) , Bj ( n ) ) (Formula 1)

[0069] Th Step 2 = ∑ n = 0 N - 1 L Total 2 ( n ) (Formula 2)

[0070] In the above formulas (1) and (2), there are N RBs, from 0 to N-1, Th Step1 Represents the amount of radio resources required for the first round of scheduling, Bj(n) represents the Bj of the nth RB, that is, the data length that needs to be allocated to the nth RB,...

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Abstract

The invention provides a method and a device for resource distribution. The method for resource distribution comprises that after uplink authorization is acquired, whether the variable Bj of each radio bear (RB) is larger than zero is judged, wherein the Bj of each RB is used for identifying the length of the radio resources which need to be distributed to the RB; if the Bj of each RB is larger than zero, business data unit fractional length which is larger than or equal to the Bj of each RB and is the most close to the Bj of each RB is acquired according to a business data unit length vector corresponding to each RB, wherein elements in the business data unit length vector is used for identifying the fractional length of each business data unit of each RB; a small value of the acquired fractional length of each business data unit and the length of current residual uplink authorization resources is chosen to be a first round of resource distribution value of each RB; the uplink authorization resources is distributed to each RB according to the first round of resource distribution value. According to the method and the device for resource distribution, segmentation of a signal distribution unit (SDU) can be effectively lowered, cost of uplink message is reduced, and the probability of retransmission is lowered.

Description

Technical field [0001] This application relates to the field of communication technology, and in particular to a method and device for resource allocation of wireless resources. Background technique [0002] In the LTE (Long Time Evolution) system, a variety of terminal data services exhibit their own unique performance requirements, such as the most typical web pages requiring low response time, FTP (File Transfer Protocol, file transfer protocol) service requirements data The correctness of the audio and video services and the requirements of the guaranteed rate for audio and video services. The allocation and competition of radio resources by these different business data will be concentrated in the "Multi-RB (Radio Bearer) scheduler" of the MAC (Medium Access Control) layer in the LTE system. Because the MAC layer can be understood as the interface between the physical layer and the business layer in the data plane, the MAC layer stores the data blocks from the business laye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04L5/00
Inventor 周光明朱文博钟展辉蒋诗梅
Owner 이노피데이인코포레이티드