Procedure, user equipment and base station for code block group based hybrid automatic repeat request process

Patent metadata

Field	Value
Publication number	US-10805916-B2
Application number	US-201816190536-A
Country	US
Kind code	B2
Filing date	Nov 14, 2018
Priority date	Nov 15, 2017
Publication date	Oct 13, 2020
Grant date	Oct 13, 2020

Abstract

A user equipment (UE) is described. The UE includes receiving circuitry. The receiving circuitry is configured to receive a Radio Resource Control (RRC) message including first information configuring code block group (CBG) based (re)transmission and a maximum number of CBGs. The receiving circuitry may also be configured to receive a Radio Resource Control (RRC) message including second information configuring HARQ-ACK bundling for the CBGs within a TB and a number of bundled HARQ-ACK information bits per TB.

First claim

What is claimed is:

1. A user equipment comprising:
a processor; and
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
receive a Radio Resource Control (RRC) message including first information configuring code block group (CBG) based (re)transmission and a maximum number of CBGs;
receive an RRC message including second information configuring Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) bundling for the CBGs across transport blocks (TBs);
receive, on a physical downlink control channel (PDCCH) resource, a scheduling downlink control information (DCI) message including third information configuring time-domain information, frequency-domain information, and CBG transmission information for a physical downlink shared channel (PDSCH) resource of a CBG-based transmission;
receive, on the PDSCH resource, a corresponding CBG-based transmission; and
send, on a physical uplink control channel (PUCCH) resource, a bundled HARQ-ACK information bit for a CBG index indicating whether the CBG(s) with a same index in any TBs or both TBs in the PDSCH are decoded successfully.

2. A base station apparatus comprising:
a processor; and
memory in electronic communication with the processor, wherein instructions stored in the memory are executable to:
transmit a Radio Resource Control (RRC) message including first information configuring code block group (CBG) based (re)transmission and a maximum number of CBGs;
transmit an RRC message including second information configuring Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) bundling for the CBGs across transport blocks (TBs);
transmit, on a physical downlink control channel (PDCCH) resource, a scheduling downlink control information (DCI) message, including third information configuring time-domain information, frequency-domain information, and CBG transmission information for a physical downlink shared channel (PDSCH) resource of a CBG-based transmission;
transmit, on the PDSCH resource, a corresponding CBG-based transmission; and
receive, on a physical uplink control channel (PUCCH) resource, a bundled HARQ-ACK information bit for a CBG index indicating whether the CBG(s) with a same index in any TBs or both TBs in the PDSCH are decoded successfully.

Assignees

• Sharp Laboratories America Inc
• Fg innovation co ltd

Inventors

• Ying Kai
• Aiba Tatsushi
• Yin Zhanping
• Nogami Toshizo
• Kowalski John Michael

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/001

  the frequencies being arranged in component carriers · CPC title

• H04L1/1861

  Physical mapping arrangements (for ACK signaling see also H04L5/0053) · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title