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Nodes, UEs and methods for detecting corrupted data transmission due to data punching

A data and retransmission technology, applied in the direction of transmission modification based on link quality, digital transmission system, transmission system, etc., can solve the problem of reducing conventional slot-level performance, increase the possibility of successful decoding, reduce the number, The effect of improving performance

Active Publication Date: 2022-05-27
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] When data puncturing occurs (for example, mini-slots puncture regular-slot-level transmissions), it can significantly degrade regular-slot-level performance

Method used

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  • Nodes, UEs and methods for detecting corrupted data transmission due to data punching
  • Nodes, UEs and methods for detecting corrupted data transmission due to data punching
  • Nodes, UEs and methods for detecting corrupted data transmission due to data punching

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Embodiment Construction

[0035] As part of the embodiments developed herein, problems will first be identified and discussed. As mentioned above, when data puncturing occurs (eg, minislots puncture regular slot-level transmissions), data puncturing can significantly degrade the performance of regular slot-level transmissions. This may be the case if the receiver of the slotted transmission is unaware of data puncturing. For example, this can affect the probability of successful decoding of regular slotted transmissions. Furthermore, if corrupted information due to puncturing is used for soft combining with retransmitted information, this can affect the probability of a successful HARQ retransmission.

[0036] When the transmission is severely corrupted eg by mini-slot puncturing such as eg URLLC, SRS, or by strong interference, the chance of successful decoding is low. Furthermore, corrupted soft information is held in the soft buffer. When a retransmission is received, the new soft information is ...

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Abstract

A method performed by a network node for handling transmission of data corrupted due to data puncturing is provided. A network node receives ( 201 ) from a user equipment (UE) negative acknowledgment (NACK) feedback of previous transmissions of data transmitted to the UE. The network node checks (202) whether the data was punctured in the previous transmission corresponding to the NACK feedback. When data was punctured in a previous transmission, the network node selects ( 203 ) a redundancy version (RV) for retransmission of the data according to the punctured data and the characteristics of the punctured data. The network node then sends (204) the puncturing indication (PI), the selected RV and the retransmission of data to the UE.

Description

technical field [0001] The present application relates to methods and apparatus for detecting and mitigating the effects of data transmission puncturing in wireless communication systems. [0002] Embodiments herein relate to network nodes, user equipment (UE) and methods therein. In particular, they relate to handling and detecting transfers of data corrupted by data puncturing. Background technique [0003] In a typical wireless communication network, wireless devices (also referred to as wireless communication devices), mobile stations, stations (STA) and / or user equipment (UE) communicate with each other via a local area network or radio access network (RAN) such as a WiFi network. One or more core network (CN) communications. The RAN covers a geographic area divided into service areas or cell areas, which may also be referred to as beams or beam groups, where each service area or cell area is controlled by a radio network node such as a radio access node. services su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/18
CPCH04L1/0082H04L1/1819H04L1/1835H04L1/1845H04L1/0003H04L1/0013H04L5/0055
Inventor K.凯蒂多克泰M.山德伯格G.维克斯特罗姆N.安德加特A.谢平
Owner TELEFON AB LM ERICSSON (PUBL)