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Method, network device and terminal device for hybrid automatic repeat request process

A hybrid auto-repeat, terminal device technology, applied in network data management, error prevention/detection using return channel, transmission path sub-channel allocation, etc., can solve problems such as increased UE cost, improve performance, improve soft buffer size effect

Active Publication Date: 2021-10-15
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although NR can use shorter TTIs and larger subcarrier spacing, the soft buffer required by a HARQ process at the UE side is still significantly larger than that required in LTE
As we all know, soft buffer memory requires high-speed input and output (IO) capabilities, and a large increase in soft buffer means a significant increase in UE cost
Furthermore, considering possible carrier aggregation possibilities, multi-subframe scheduling or multi-connection scenarios, the required soft buffer size for UEs in NR networks becomes much larger, which is not always acceptable

Method used

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  • Method, network device and terminal device for hybrid automatic repeat request process
  • Method, network device and terminal device for hybrid automatic repeat request process
  • Method, network device and terminal device for hybrid automatic repeat request process

Examples

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Embodiment Construction

[0028] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that the following examples are illustrative only and do not limit the scope of the present disclosure.

[0029] figure 2 is a flowchart illustrating a method 200 for a hybrid automatic repeat request (HARQ) process according to an embodiment of the disclosure. The method 200 can be performed at a network device such as a base station or an eNB.

[0030] At step S210, one or more data processing capacity indications indicative of one or more data processing capabilities of the terminal device are received from the terminal device, such as a smartphone. The one or more data processing capacity indications may include a capacity indication indicating a number of soft buffers in the terminal device, and a capacity indication indicating signal processing delays of the terminal device.

[0031] In step S220, the network device estimates ...

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Abstract

The present disclosure provides a method for a Hybrid Automatic Repeat Request (HARQ) procedure in a network device, the method comprising receiving from a terminal device one or more data processing capabilities indicative of one or more data processing capabilities of the terminal device capacity indication; estimating the amount of available soft buffers in the terminal device; and scheduling hybrid automatic repeat request (HARQ) data according to the estimated amount.

Description

technical field [0001] The present disclosure relates to wireless communication technology, and more particularly, to a method, a network device, a terminal device and a system for a hybrid automatic repeat request (HARQ) process. Background technique [0002] Leading operators and suppliers in the Next Generation Mobile Network (NGMN) Alliance are looking to fifth generation (5G) networks to deliver a wide range of applications and services. 5G networks, also named NR (New Radio), will support a large number of applications and services with different performance attributes, from delay-sensitive video applications to ultra-low-latency real-time applications, from entertainment applications in high-speed vehicles to connected objects of mobile on-demand applications, ranging from best-effort to reliable or ultra-reliable applications such as health and safety. [0003] In 4G (ie LTE (Long Term Evolution)) networks, HARQ (Hybrid Automatic Repeat Request) is used for error de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
CPCH04L1/1835H04L1/1887H04L1/00H04L1/1812H04L5/0055H04W8/24
Inventor 李根刘进华石聪
Owner TELEFON AB LM ERICSSON (PUBL)
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