Uplink non-orthogonal scheduling-free method and device

A non-orthogonal, base station technology, applied in the field of communications, can solve the problem of inability to reduce adjacent cell interference, and achieve the effect of reducing adjacent cell interference and reducing multiple access resources

Active Publication Date: 2018-04-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above technical problems, the embodiments of the present invention provide an uplink non-orthogonal scheduling-free method and device to solve the problem that the existing technology cannot reduce the interference of adjacent cells

Method used

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  • Uplink non-orthogonal scheduling-free method and device
  • Uplink non-orthogonal scheduling-free method and device
  • Uplink non-orthogonal scheduling-free method and device

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Experimental program
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Embodiment 1

[0049] see figure 1 , the figure shows an uplink non-orthogonal scheduling-free method, the specific steps are as follows:

[0050] Step 101, the base station groups the multiple access resources, configures at least two sets of multiple access resource pools, and at least some of the multiple access resources in the at least two sets of multiple access resource pools are different;

[0051] Take two groups of multiple-access resource pools as an example: the first multiple-access resource pool and the second multiple-access resource pool, wherein, part of the multiple-access resource in the second multiple-access resource pool is the same as the multiple-access resource in the first multiple-access resource pool different.

[0052] Take three sets of multiple-access resource pools as an example: the first multiple-access resource pool, the second multiple-access resource pool, and the third multiple-access resource pool, wherein the second multiple-access resource pool is th...

Embodiment 2

[0060] see figure 2 , the figure shows an uplink non-orthogonal scheduling-free method, the specific steps are as follows:

[0061] Step 201, the terminal acquires at least two sets of multiple access resource pools pre-configured by the base station, and at least some of the multiple access resources in the at least two sets of multiple access resource pools are different;

[0062] In this embodiment, the above-mentioned multiple access resources include: any one or more of time domain resources, frequency domain resources, air domain resources, and code domain resources, wherein the code domain resources include but are not limited to: codebook (codebook) Any one or more of , codeword (codeword), sequence (sequence), interleaver (interleaver) and mapping pattern (mapping pattern).

[0063] In this embodiment, optionally, at least two groups of multiple-access resource pools include: a first multiple-access resource pool and a second multiple-access resource pool, wherein t...

Embodiment 3

[0069] The implementation of the present invention will be described below by taking PDMA (Pattern Division Multiple Access) uplink scheduling-free transmission as a specific example.

[0070] PDMA technology adopts the design idea of ​​joint optimization of the sending end and the receiving end, divides the information of multiple users at the sending end with unequal diversity, and maps it to the same time domain resource, frequency domain resource or air domain resource, using different codes Patterns are used to distinguish different users with overlapping resources; high-performance and low-complexity multi-user detection techniques, such as the belief propagation algorithm, are used at the receiving end to approach the maximum a posteriori probability detection performance. The characteristic of multiple access resources of PDMA technology is that different pattern resources share the same time domain resources, frequency domain resources, air domain resources and other r...

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Abstract

Embodiments of the invention provide an uplink non-orthogonal scheduling-free method and device. The method comprises the following steps that a base station groups multiple access resources and configures to obtain at least two groups of multiple-access resource pools, wherein at least some multiple access resources in the at least two groups of multiple access resource pools are different; and the base station informs the at least two groups of the multiple access resource pools obtained by configuration to the terminal, and the terminal selects a used multiple access resource pool from theat least two groups of multiple access resource pools. Through adoption of multiple access resource grouping and multiplexing, the interference of adjacent cells is reduced, so that the available multiple access resources cannot be reduced, and a large amount of signaling loads cannot be generated.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink non-orthogonal scheduling-free method and device. Background technique [0002] 3GPP proposes three NR (New Radio) scenarios, namely massive Machine Type Communications (mMTC, massive machine type communication), Ultra-Reliable and Low Latency Communications (URLLC, ultra-high reliability and ultra-low latency communication) and enhanced Mobile Broadband (eMBB, Mobile Broadband Enhancement). Among them, for the mMTC scenario, the requirement is large connections, and non-orthogonal uplink scheduling-free is an effective transmission mechanism to meet the requirements of this scenario. Scheduling-free can reduce a large amount of signaling load, and non-orthogonal can satisfy a large number of users in the system to connect. When a large number of users in the network are connected, neighbor cell interference is the bottleneck of network performance. Fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/535H04W72/21H04W74/006H04W74/008H04W72/02H04W74/0833H04L47/821H04L5/0035H04W72/04
Inventor 李铁陈山枝康绍莉任斌邢艳萍赵铮
Owner DATANG MOBILE COMM EQUIP CO LTD
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