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US 12,598,647 B2Granted
Efficient pre-channel reservation mechanism for TWT and restricted TWT in OBSS dense networks
AssigneeMediatek Inc.
InventorsYing-You Lin, Kuo-Wei Chen
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Abstract
Techniques pertaining to an efficient pre-channel reservation mechanism for target wake time (TWT) and restricted TWT (rTWT) in overlapping basic service set (OBSS) dense networks are described. A first station (STA) transmits a frame to reserve a reservation period. The first STA then communicates with a second STA during the reservation period which aligns at least partially with a target wake time (TWT) service period (SP) or a restricted TWT (rTWT) SP of the second STA.
Claims15
A method, comprising:
- transmitting, by a processor of an apparatus implemented in a first station (STA), a frame to reserve a reservation period;
- communicating, by the processor, with a second STA during the reservation period which aligns at least partially with a target wake time (TWT) service period (SP) or a restricted TWT (rTWT) SP of the second STA;
- and
- determining, by the processor, a length of a pre-reservation period based on at least one factor of a plurality of factors,
- wherein the transmitting of the frame comprises transmitting the frame during the pre-reservation period prior to a starting point of the TWT SP or the rTWT SP of the second STA, and
- wherein the plurality of factors comprise:
- a TWT service time or a rTWT service time of the second STA;
- a number of active STAs;
- an airtime occupied by an intra or inter-basic service set (BSS) or an overlapping basic service set (OBSS);
- an application quality of service (QoS) priority;
- and
- a throughput of the second STA.
9 more elements
A method, comprising:
- determining, by a processor of an apparatus implemented in a first station (STA), whether another STA is in a respective target wake time (TWT) service period (SP) or a respective restricted TWT (rTWT) SP;
- performing, by the processor, a scenario detection to determine one or more factors of a plurality of factors with respect to a networking environment responsive to determining that a second STA is in a TWT SP or a rTWT SP of the second STA;
- calculating, by the processor, a length of a reservation period based on at least one factor of the one or more factors;
- transmitting, by the processor, a frame to reserve the reservation period;
- and
- communicating, by the processor, with the second STA during the reservation period which aligns at least partially with the TWT SP or the rTWT SP of the second STA,
- wherein the transmitting of the frame comprises transmitting the frame during a pre-reservation period which is prior to a starting point of the TWT SP or the rTWT SP of the second STA, and
- wherein a length of the pre-reservation period is determined based on at least one factor of a plurality of factors, and wherein the plurality of factors comprise:
- a TWT service time or a rTWT service time of the second STA;
- a number of active STAs;
- an airtime occupied by an intra or inter-basic service set (BSS) or an overlapping basic service set (OBSS);
- an application quality of service (QoS) priority;
- and
- a throughput of the second STA.
11 more elements
Dependencies are inferred from the claim text.