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Continuous scheduling resource allocation method and device and data transmission method through continuous scheduling resources and data transmission device thereof

A technology for continuous scheduling and data transmission, which is applied in the direction of adjusting transmission rate, transmission modification based on link quality, signaling allocation, etc., and can solve problems such as no longer applicable and no continuous scheduling solution

Active Publication Date: 2017-08-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, the disadvantage of the existing technology is that under the variable TTI, the available resources of each TTI are different, and the size of the RU allocated by the scheduling resource is also different. The LTE system has a fixed time period, a fixed resource size and a transmission format. Continuous scheduling is no longer applicable
At the same time, the prior art has not yet provided a solution for persistent scheduling under a variable TTI frame structure

Method used

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  • Continuous scheduling resource allocation method and device and data transmission method through continuous scheduling resources and data transmission device thereof
  • Continuous scheduling resource allocation method and device and data transmission method through continuous scheduling resources and data transmission device thereof
  • Continuous scheduling resource allocation method and device and data transmission method through continuous scheduling resources and data transmission device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] This example is used to illustrate the implementation of allocating a persistent scheduling resource list on the network side.

[0115] Step 1: On the network side, determine the terminal that needs to be allocated with persistent scheduling resources. The determination is based on the fact that the terminal has service data that needs to be transmitted using persistent scheduling resources, such as periodic small data packets (such as VoIP, MTC (Machine Type Communications, Machine Type Communications, Machine Type Communications, class communication) periodically report data, etc.). And determine the period, data packet size, transmission direction (downlink, uplink, D2D) etc. of using persistent scheduling resources to transmit service data.

[0116] Step 2: The network side determines the TTI length change requirements and TTI length options, as well as air interface resources for possible persistent scheduling resource allocation. A persistent scheduling resource ...

Embodiment 2

[0161] This example is an implementation of selecting persistent scheduling resources for transmission according to the TTI length.

[0162] Before performing persistent scheduling transmission, the network side has configured a persistent scheduling resource list for the terminal, and each persistent scheduling resource configuration corresponds to a different TTI length.

[0163] 1. Downlink transmission (network side to terminal):

[0164] Network side transmission point side:

[0165] Step 1: The transmission point on the network side determines the transmission time point according to the persistent scheduling period, and if the TTI at the time point corresponding to the period is not a downlink TTI, then the next nearest downlink TTI is used as the transmission TTI.

[0166] Step 2: The transmission point on the network side determines the length of the TTI for transmission, and determines the persistent scheduling resource for transmission according to the corresponden...

Embodiment 3

[0191] This example is an implementation of selecting persistent scheduling resources for transmission according to channel quality.

[0192] Before performing persistent scheduling transmission, the network side has configured a persistent scheduling resource list for the terminal, and each persistent scheduling resource configuration corresponds to a different channel quality.

[0193] sender:

[0194] Step 1: The sender determines the transmission time point according to the persistent scheduling cycle. If the TTI corresponding to the time point of the cycle is not the TTI corresponding to the transmission direction, the next available TTI is used as the transmission TTI.

[0195] Step 2: The sending end measures the transmission channel quality of the opposite end, and uses channel reciprocity to estimate the transmission channel quality sent to the opposite end; or, determines the transmission channel quality according to the channel quality feedback of the opposite end. ...

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Abstract

The invention discloses a continuous scheduling resource allocation method and device and a data transmission method through continuous scheduling resources and a data transmission device thereof. The continuous scheduling resource allocation method comprises the steps that a continuous scheduling resource allocation table is generated for a terminal, wherein the continuous scheduling resource allocation table includes the mapping relation between each continuous scheduling resource and the transmission time interval length and / or the channel condition; and the continuous scheduling resource allocation table is transmitted to the terminal. When data transmission is performed by using the continuous scheduling resources, the continuous scheduling resource allocation table is determined; the continuous scheduling resources are determined according to the mapping relation in the continuous scheduling resource allocation table after the transmission time interval length and / or the channel condition of data transmission is determined; and data transmission is performed by using the continuous scheduling resources. With application of the scheme, data transmission can be performed by using the continuous scheduling resources even the transmission time interval is variable so that effective allocation of the continuous scheduling resources under the variable transmission time interval length can be realized.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for allocating persistent scheduling resources and using it for data transmission. Background technique [0002] Persistent scheduling means that the network side allocates persistent resources (such as time, frequency, code channel, etc.) , without the need for the network side to send scheduling commands. The purpose of persistent scheduling is mainly to save scheduling command resources for periodically arriving small data packets, such as VoIP (Voice over IP, IP-based voice transmission) data packets, so as to improve system capacity and resource efficiency. [0003] Taking the LTE (Long Term Evolution, Long Term Evolution) system as an example, the LTE system adopts semi-persistent scheduling, and its working mode is: the initial transmission of a specific data packet (such as a voice packet of VoIP service) adopts persistent sched...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/12H04L5/00
CPCH04L5/0055H04L5/0057H04W72/0446H04W72/542H04W72/20H04L5/0053H04W72/23H04W72/1263H04L1/0003H04L5/0051H04L5/0082H04W72/12H04W72/04
Inventor 谌丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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