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Method for data processing, network device and terminal

A technology for network equipment and data processing, which is applied in the field of data processing and can solve problems such as the inability to meet the continuous coverage of 5G networks, the limited number of orthogonal resources and the orthogonality requirements.

Active Publication Date: 2017-12-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Orthogonal multiple access technology cannot meet the large-scale continuous coverage in the future 5G network because the number of access terminals it can accommodate is proportional to the orthogonal resources, and the number of orthogonal resources is limited by the requirement of orthogonality. Business requirements such as large capacity, large-scale connections, and ultra-low-latency access

Method used

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  • Method for data processing, network device and terminal
  • Method for data processing, network device and terminal
  • Method for data processing, network device and terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0121] Network devices are performing as image 3 and Figure 4 Before the shown modulation and preprocessing operations, the control information that needs to be confirmed includes: supported terminals, data layer numbers occupied by each terminal (including the number of layers G k ) and the basic modulation method corresponding to each layer of data, the number of REs Q for spreading, and the preprocessing operation method. The overload rate can be calculated by the total number of supported layers G and Q. As mentioned above, among these control information, other information except the terminal information supported by the network equipment can be determined by the network equipment and then notified to each terminal through signaling, or can be stored separately by the network equipment and each terminal in advance , for example, the network device and each terminal can agree in advance on the number of data layers G corresponding to the terminal k and the basic modul...

Embodiment 2

[0149] Embodiment 1 provides an example of the operation flow of downlink modulation and preprocessing of regular spread spectrum. In contrast, this embodiment provides an example of operation flow of downlink modulation and preprocessing of irregular spread spectrum.

[0150] Likewise, network devices are performing such image 3 and Figure 4 Before the shown modulation and preprocessing operations, the control information that needs to be confirmed includes: supported terminals, data layer numbers occupied by each terminal (including the number of layers G k ) and the basic modulation method corresponding to each layer of data, the number of REs Q for spreading, and the preprocessing operation method. Among the control information, other information except the terminal information supported by the network device can be notified by signaling after being determined by the network device, or can be stored separately by the network device and each terminal in advance.

[0151...

Embodiment 3

[0173] This embodiment provides another downlink preprocessing operation method. The network device schedules N terminals, with a total of G layer data, divided into H groups, and assuming that each group includes the same number of J=G / H layer data, the J layer data The same RE can be multiplexed by superposition modulation and the same spread spectrum method. The data layers of the same group do not belong to the same terminal. Of course, the number of layers in each group can be different (the specific value of J is the same as the J The power difference between layer data depends on the specific manner of superposition modulation, which is not limited here). In this embodiment, each group of terminals is spread to Q REs for transmission in a manner similar to CDMA, and the spreading methods of the same group of terminals are consistent, that is, the data of the same group of terminals is in the 1 The corresponding columns must be completely consistent, and in the first and...

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Abstract

The invention discloses a method for data processing, a network device and a terminal. According to the method, a sending end merges basic modulation symbols which are obtained after the sending end respectively carries out basic modulation on data of each layer in order to obtain a merged symbol vector X, and a transmitting end maps the symbol vector X on Q resource units to obtain a data vector S, wherein the symbolic number of the symbol vector X is greater than the symbolic number in the data vector S, the symbolic number in the data vector S is Q and Q is a positive integer. According to the method for data processing, the network device and the terminal, the non-orthogonal spread spectrum superposition transmission of multiple terminals can be realized in uplink and downlink and the transmission efficiency is effectively increased.

Description

technical field [0001] The embodiment of the present application relates to the technical field of communication, and more specifically, relates to a data processing method. Background technique [0002] The following are some English abbreviations involved in this application and their full names in Chinese and English: [0003] [0004] [0005] The current wireless communication technology has been developed to the LTE system, with the figure 1 For example, the existing LTE system includes multiple cells, each cell has a network device 11 (such as a base station) and multiple terminals 12, the network device 11 sends public control information and data to the terminal 12, and is used for Reference signals for detecting common control information and data. Generally, in order to prevent mutual interference, the network device sends signals to the terminal and the terminal sends signals to the network device using independent resources, and these two independent res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L27/34
CPCH04L5/0005H04L5/003H04L27/3444H04L5/0001H04W52/325H04L1/0003
Inventor 程猛吴艺群陈雁
Owner HUAWEI TECH CO LTD
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