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Remote interference mitigation for physical uplink shared channel (PUSCH)

A physical uplink and processing circuit technology, applied in the field of wireless communication networks, can solve problems such as impact

Pending Publication Date: 2021-05-25
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0036] Although NR provides significant flexibility in configuring TDD UL-DL arrangements according to various requirements, in various configurations, the presence of long-range interference may affect negatively affect the ability to transmit

Method used

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  • Remote interference mitigation for physical uplink shared channel (PUSCH)
  • Remote interference mitigation for physical uplink shared channel (PUSCH)
  • Remote interference mitigation for physical uplink shared channel (PUSCH)

Examples

Experimental program
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Embodiment Construction

[0056] As briefly mentioned above, although NR provides significant flexibility in configuring TDD UL-DL arrangements according to various requirements, in various configurations, the presence of long-range negatively impacts the ability to receive transmissions from the UE in the slot. This is discussed in more detail below.

[0057] Figure 6 An exemplary UE transmitter procedure for mapping NR MAC layer transport blocks (TBs) onto PHY layer resource elements (REs) for transmitting information on the Physical Uplink Shared Channel (PUSCH) is shown. First, cyclic redundancy check (CRC) information is appended to each TB to facilitate detection of errors in received blocks. If the TB is smaller than the threshold, the TB (including CRC) is mapped to a single CB; otherwise, the TB is split into multiple code blocks (e.g., in Figure 6 CB in i 、 CB i+1 ). In this case, another CRC is appended to each CB to facilitate error detection on a per-CB level. Multiple CBs can be ...

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Abstract

Embodiments include exemplary methods and / or procedures for receiving a physical uplink shared channel (PUSCH) in a cell of a time-division-duplexed (TDD) radio access network (RAN). Embodiments include determining (1010) whether remote base station interference is present in uplink transmissions in the cell and, based on the determining result, configuring activation or deactivation of code block group (CBG) based retransmissions in the cell, sending control messages to one or more pieces of UE in the cell, for applying the configuration, and decoding subsequent PUSCH transmissions received from the one or more pieces of UE based on the configuration. Embodiments also include network nodes configured to perform the exemplary methods and / or procedures.

Description

technical field [0001] The present invention relates generally to wireless communication networks, and more particularly to improving reception of uplink channels in the presence of interference. Background technique [0002] A wireless cellular network is built up of a number of cells, where each cell defines a specific coverage area and is served by a radio base station (or "BS" for short). Communication between a base station and a terminal / user equipment (UE) in a cell is performed wirelessly using paired or unpaired resources in the frequency spectrum. In the case of paired spectrum, downlink (DL, i.e. BS to UE) communication and uplink (UL, i.e. UE to BS) communication from a single BS use separate (paired) frequency resources, but can be occurs, which is often referred to as frequency division duplexing (FDD). In the case of unpaired spectrum, DL and UL use the same frequency resources, but occur sequentially, which is often referred to as Time Division Duplex (TDD)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04L1/18
CPCH04L1/1819H04L5/1469H04L5/0044H04L5/0062
Inventor P·埃尔斯博N·V·K·伊鲁库拉帕蒂S·法克塞H·比约克格伦
Owner TELEFON AB LM ERICSSON (PUBL)