Although transmissions by an AP are typically received by all STAs associated with that AP, the service provided by a GLK infrastructure BSS might be considered as separate point-to-point links between the corresponding ISS SAPs. Provision of such apparent point-to-point links is natural for MPDUs with an individually addressed RA. In order to provide such apparent point-to-point links for group addressed frames the GLK AP transmit them so that they are accepted by a subset of the associated GLK STAs. Such selective transmission can be provided through the GLK SYNRA addressing facility (see 4.3.27.3 (Selective reception of group addressed frames)) or by serial unicast. Figure 4-13b—infrastructure BSS with general links BSSs that support general links can be components of an extended form of network by using the general links within an IEEE Std 802.1Q bridged network In such a bridged network, the concept of the DS in a non-GLK ESS is replaced by the other components of the IEEE Std 802.1Q network. However, such a GLK topology is more general than the non-GLK infrastructure mode. For example, Figure 4-13c—Example of ESS with general links References: [1] 11-17/0932r6, Figs 4-13”, “802.11ak [2] P802.11ak/D4.2, March 2017, P802.11ak™/D4.2 Draft Standard Telecommunications “IEEE and information exchange between systems Local and metropolitan area networks Part 11: – Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 4: Enhancements For Transit Links Within Bridged Networks”, Draft P802.11ak_D4.2
Although transmissions by an AP are typically received by all STAs associated with that AP, the service provided by a GLK infrastructure BSS might be considered as separate point-to-point links between the corresponding ISS SAPs. Provision of such apparent point-to-point links is natural for MPDUs with an individually addressed RA. In order to provide such apparent point-to-point links for group addressed frames the GLK AP transmit them so that they are accepted by a subset of the associated GLK STAs. Such selective transmission can be provided through the GLK SYNRA addressing facility (see 4.3.27.3 (Selective reception of group addressed frames)) or by serial unicast. Figure 4-13b—infrastructure BSS with general links BSSs that support general links can be components of an extended form of network by using the general links within an IEEE Std 802.1Q bridged network In such a bridged network, the concept of the DS in a non-GLK ESS is replaced by the other components of the IEEE Std 802.1Q network. However, such a GLK topology is more general than the non-GLK infrastructure mode. For example, Figure 4-13c—Example of ESS with general links References: [1] 11-17/0932r6, “802.11ak Figs 4-13”, [2] P802.11ak/D4.2, March 2017, “IEEE P802.11ak™/D4.2 Draft Standard Telecommunications and information exchange between systems – Local and metropolitan area networks Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 4: Enhancements For Transit Links Within Bridged Networks”, Draft P802.11ak_D4.2
11-17-1389-00-00ak-clarification-of-figures-in-clause-4-3-27-4-glk-service-sets.docx