Title:
UNMAP BACKLOG IN A MEMORY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/040914
Kind Code:
A1
Abstract:
Methods, systems, and devices for unmap backlog in a memory system are described. A memory system may be configured to support receiving an unmap command from a host system and signaling, to the host system, an indication that the unmap command has been processed (e.g., handled, acknowledged). In response to the unmap command, the memory system may proceed with various unmap operations, which may include unmapping at least some of the associated addresses after indicating that the unmap command has been processed. For example, a memory system may implement an unmap backlog table to identify sections of addresses that are to be unmapped (e.g., after indicating that the unmap command has been processed). The memory system may support various aspects of prioritization between unmap operations (e.g., background unmap operations) and other access operations such as read operations, write operations, or other access operations.
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Inventors:
LI HUACHEN (US)
ZHANG XU (US)
WANG XING (US)
WANG GUAN ZHONG (US)
LIANG TIAN (US)
WANG JUNJUN (US)
ZHANG XU (US)
WANG XING (US)
WANG GUAN ZHONG (US)
LIANG TIAN (US)
WANG JUNJUN (US)
Application Number:
PCT/CN2020/111079
Publication Date:
March 03, 2022
Filing Date:
August 25, 2020
Export Citation:
Assignee:
MICRON TECHNOLOGY INC (US)
International Classes:
G06F12/08
Foreign References:
| CN104679668A | 2015-06-03 | |||
| CN111414313A | 2020-07-14 | |||
| CN108304139A | 2018-07-20 | |||
| CN110175133A | 2019-08-27 | |||
| CN110825316A | 2020-02-21 | |||
| US20190087113A1 | 2019-03-21 |
Attorney, Agent or Firm:
LEE AND LI-LEAVEN IPR AGENCY LTD. (CN)
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