Wireless communication system, access point, terminal, and communication method

Abstract

A wireless communication system according to the present disclosure includes an access point (AP) belonging to a certain BSS and a terminal (STA) belonging to the AP. The STA updates an NAV used for virtual carrier sense according to whether the AP and the STA are permitted to use OBSS_PD-based SR.

1 . A method performed by an access point (AP) configured to control a spatial reuse operation for an interference management between a Basic Service Set (BSS) and an Overlapping BSS (OBSS) in a dense deployment scenario, the method comprising:
 communicating with a terminal (STA); and   sending a signal for not setting the spatial reuse operation to prohibit,   wherein the signal causes to not update a Basic Network Allocation Vector (NAV).   
     
     
         2 . The method according to  claim 1 , further comprising:
 causing the STA to update an intra-BSS NAV based on an intra-BSS frame in a case where the AP sends the intra-BSS frame.   
     
     
         3 . A method performed by a terminal (STA), the method comprising:
 receiving a signal for not setting a spatial reuse operation to prohibit,   wherein the spatial reuse operation is for an interference management between a Basic Service Set (BSS) and an Overlapping BSS (OBSS) in a dense deployment scenario; and   not updating a Basic Network Allocation Vector (NAV) based on the signal.   
     
     
         4 . The method according to  claim 3 , further comprising:
 receiving an intra-BSS frame; and,   updating an intra-BSS NAV based on the intra-BSS frame.   
     
     
         5 . The method according to  claim 3 ,
 wherein the signal is an inter-BSS frame.   
     
     
         6 . An access point (AP) configured to control a spatial reuse operation for an interference management between a Basic Service Set (BSS) and an Overlapping BSS (OBSS) in a dense deployment scenario, the AP comprising:
 a memory configured to store instructions; and   at least one processor configured to process the instructions to:
 communicate with a terminal (STA); and 
 send a signal for not setting the spatial reuse operation to prohibit, 
   wherein the signal causes to not update a Basic Network Allocation Vector (NAV).   
     
     
         7 . A terminal (STA) comprising:
 a memory configured to store instructions; and   at least one processor configured to process the instructions to:
 receive a signal for not setting a spatial reuse operation to prohibit, 
   wherein the spatial reuse operation is for an interference management between a Basic Service Set (BSS) and an Overlapping BSS (OBSS) in a dense deployment scenario; and
 not update a Basic Network Allocation Vector (NAV) based on the signal.