17933279. RESTRICTED TWT WITH ENHANCED MULTI-LINK SINGLE RADIO (EMLSR) OPERATION simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

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RESTRICTED TWT WITH ENHANCED MULTI-LINK SINGLE RADIO (EMLSR) OPERATION

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Rubayet Shafin of Allen TX (US)

Boon Loong Ng of Plano TX (US)

Vishnu Vardhan Ratnam of Plano TX (US)

Ahmed Atef Ibrahim Ibrahim of Plano TX (US)

Peshal Nayak of Plano TX (US)

RESTRICTED TWT WITH ENHANCED MULTI-LINK SINGLE RADIO (EMLSR) OPERATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 17933279 titled 'RESTRICTED TWT WITH ENHANCED MULTI-LINK SINGLE RADIO (EMLSR) OPERATION

Simplified Explanation

The patent application describes methods and apparatuses for enabling the coexistence of enhanced multi-link single radio (EMLSR) operation with target wake time (TWT) operation in a wireless local area network (WLAN).

  • EMLSR operation refers to the use of multiple links between non-access point (AP) MLDs (Multi-Link Devices) and AP MLDs in a WLAN.
  • TWT operation refers to a mechanism that allows devices in a WLAN to schedule their wake-up times to conserve power.
  • The patent application focuses on a non-AP MLD, which consists of STAs (Station) with transceivers that form links with corresponding AP MLDs.
  • The non-AP MLD establishes a restricted TWT (R-TWT) schedule on a first link, where a specific STA is a member of an R-TWT service period (SP) on that link.
  • Another STA on a second link is not a member of any R-TWT SP that overlaps with the R-TWT SP on the first link.
  • The processor in the non-AP MLD transitions it into EMLSR operation, creating an EMLSR link pair between the first and second links.
  • During this operation, the processor ensures that a frame exchange sequence with the AP MLD on the second link does not overlap with the R-TWT SP on the first link.

Potential Applications

  • Wireless local area networks (WLANs)
  • Internet of Things (IoT) devices
  • Smart home automation systems
  • Industrial automation and control systems

Problems Solved

  • Coexistence of EMLSR and TWT operations in a WLAN
  • Efficient utilization of multiple links while maintaining power-saving features
  • Avoiding interference and overlapping transmission opportunities

Benefits

  • Improved performance and throughput in WLANs
  • Enhanced power-saving capabilities for devices in a WLAN
  • Seamless coexistence of different operational modes in a network


Original Abstract Submitted

Methods and apparatuses for facilitating the coexistence of enhanced multi-link single radio (EMLSR) operation with target wake time (TWT) operation in a wireless local area network. A non-access point (AP) MLD comprises STAs, each comprising a transceiver that forms a link with a corresponding AP of an AP MLD, and a processor. A restricted TWT (R-TWT) schedule is established on a first link, and a first STA on that link is a member of an R-TWT service period (SP) on that link. A second STA on a second link is not a member of any R-TWT SP on that link that overlaps with the R-TWT SP on the first link. The processor transitions the non-AP MLD into EMLSR operation wherein the first and second links form an EMLSR link pair, determines that a transmission opportunity (TXOP) has begun on the second link, and coordinates between the STAs such that a frame exchange sequence with the AP MLD on the second link during the TXOP does not overlap with the R-TWT SP on the first link.