Method for resource allocation
US-2024430866-A1 · Dec 26, 2024 · US
Detection and recovery of HARQ NAK-to-ACK feedback error in wireless communications systems
US8959409B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8959409-B2 |
| Application number | US-31735108-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 22, 2008 |
| Priority date | Jul 7, 2008 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
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In wireless communication networks that use ARQ/HARQ feedback protocols, when a first device receives an apparent HARQ ACK from a second device, the first device may make a new transmission using a HARQ Channel ID whose previous usage was under conditions indicating a likelihood of error in the ACK. When the second device receives the new transmission, the reuse of that HARQ Channel ID in a new transmission rather than a retransmission lets the second device know that its previous NAK transmission was incorrectly received as an ACK.
First claim
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What is claimed is: 1. A method, comprising: identifying, by a first wireless communications device, a group of Hybrid Automatic Repeat Request (HARQ) Channel IDs (ACIDs) whose previous use by the first wireless communications device was in a transmission that resulted in an ACK being received; selecting, by the first wireless communications device, a first ACID from the group of ACIDs based on an indication that a first ACK associated with the first ACID had a likelihood of err…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H04L1/1812Primary
Electricity · mapped topic
- H04W52/0248Primary
Electricity · mapped topic
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- What does patent US8959409B2 cover?
- In wireless communication networks that use ARQ/HARQ feedback protocols, when a first device receives an apparent HARQ ACK from a second device, the first device may make a new transmission using a HARQ Channel ID whose previous usage was under conditions indicating a likelihood of error in the ACK. When the second device receives the new transmission, the reuse of that HARQ Channel ID in a new…
- Who is the assignee on this patent?
- Zhu Yuan, Yang Xiangying, Yin Hujun, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H04L1/1812. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).