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Data transmission method and device

A data transmission method and data transmission technology, applied in the field of data transmission methods and devices, capable of solving problems affecting UE performance, UE packet loss, wireless link failure, etc.

Active Publication Date: 2014-11-26
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

Therefore, the transmission of UE data may exceed the UE's maximum processing capability, resulting in UE packet loss
Since the loss of the data packet occurs randomly, it may cause the loss of important control signaling or data, which will affect the performance of the UE and may cause the failure of the radio link

Method used

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  • Data transmission method and device

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no. 2 example 60

[0145] Step 2) When the MeNB determines to allocate the maximum transmission capability of the transmission index to the UE in proportion, it allocates 70% of the first proportion allowed to be used by itself and 60% of the second proportion allowed to be used by the SeNB;

[0146] Step 3) MeNB determines the third ratio 40% that it uses when it needs to guarantee data transmission according to the second ratio 60%, such as Figure 6 As shown, the MeNB sends a Request change of Capability split (Request change of Capability split) signaling to the SeNB, and the signaling includes the following content: MeNB allows the use of the first ratio of 70% (Allowed 70 at SeNB)); and / or the SeNB needs to Guaranteed 30% at SeNB when using the fourth ratio for data transmission;

[0147] The MeNB may also incidentally send a second ratio of 60% (Allowed 60 at SeNB) allocated to the SeNB.

[0148] Preferably, the sum of the first ratio and the fourth ratio is 100%, and the sum of the seco...

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Abstract

The invention relates to a data transmission method and device. The method includes the steps that MeNB determines the maximum transmission capacity of a transmission index of UE according to the transmission index of the UE; the first proportion allocated to the MeNB and allowed to be used by the MeNB and the second proportion allocated to SeNB and allowed to be used by the SeNB are determined when the maximum transmission capacity of the transmission index of the UE is allocated according to proportions; the MeNB determines the third proportion needed when the MeNB needs to guarantee data transmission according to the second proportion, and sends a signaling to the SeNB to indicate the fourth proportion needed when the SeNB needs to guarantee data transmission; when data transmission needs to be guaranteed, the MeNB / SeNB conducts data scheduling transmission in the third proportion / fourth proportion range of the maximum transmission capacity of the transmission index of the UE. By means of the data transmission method and device, the success rate of sending important signalings and data can be guaranteed, and UE performance and network side performance are improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a data transmission method and device. Background technique [0002] With the deployment of more and more local nodes such as femtocells, microcells, and relays, the traditional network architecture dominated by macro base stations will gradually evolve into a network architecture in which more types of base stations coexist and provide more layers network coverage. In order to improve the related performance under the coexistence network architecture of multiple types of base stations, a network architecture for realizing cooperation / aggregation between multiple eNBs through non-ideal links is proposed. [0003] Such as figure 1 In a possible multi-layer network coverage environment shown, a non-ideal data / signaling interface Xn interface (wired or wireless interface), the UE can work under the MeNB and the SeNB at the same time. When the UE connected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W8/22
CPCH04W72/04
Inventor 吴昱民张大钧
Owner DATANG MOBILE COMM EQUIP CO LTD
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