TGac Editor, cahneg the following defenition in Clause 3.1: aggregate medium access control (MAC) protocol data unit (A-MPDU) subframe: A portion of an AMPDU containing a delimiter and optionally containing an associated MPDU. 10144 Adachi, Tomoko 3.1 2.32 The definition of an MU PPDU allows a single STA to be the receiver. But reading the definition of MU-MIMO, which is a larger concept, it seems to be restricted for multiple STAs, more than one. The definition of DL-MU-MIMO can be also read to be restricted for multiple STAs, not for a single STA. Furthermore, is it allowed to carry a same (single) PSDU to multiple STAs? If so, the case should be differentiated with the case using a PSDU using a group address for the RA. Change the definition to have consistency with the definition of MU-MIMO. Reexamine if it is allowed to carry a same PSDU to multiple STAs and clarify the definition from a group RA case if necessary. Reject. While it is more efficient to send multiple PSDUs in a MU-PPDU, it is possible to send a single PSDU to a single receipient by approperiatelly setting the GID and NSTS in It is also possible to send the same PSDU to multiple STAs by approperiatelly setting the subfields in This case is not different with the MU-MIMO operation explained in the spec except that the content of individual PSDUs are the same, and it seems there is no distingution is left to be added. Hence, it is left to implementtaion to decide on the most efficient way to send the same PSDU to multiple STAs.
10219 Hamilton, Mark 3.2 7.16 When is a "group of STAs identified by a single RA"? Clarify when this would be applicable, or remove from this definition Reject. In the definition of RA, either an IEEE MAC individual or group address is considered: “The RA field contains an IEEE MAC individual or group address that identifies the intended immediate recipient STA(s), on the WM, for the information contained in the frame body field”. Discussion: CID 10219 refers to the following definition: user: An individual or group of STAs identified by a single RA in the context of single user (SU) multiple input, multiple output (MIMO) or a single STA in the context of multi-user (MU) MIMO. In the definition of RA, either an IEEE MAC individual or group address is considered: “The RA field contains an IEEE MAC individual or group address that identifies the intended immediate recipient STA(s), on the WM, for the information contained in the frame body field”. 10235 Hunter, David 3.2 4.48 Transmit power is a concept that is used in many locations in the standard, including frequent references to TPC. Deleting this definition leaves an important and frequently used term undefined, which is unacceptable in an IEEE standard. Either replace this definition with a definition of "transmit power" that is acceptable both in 11ac and the rest of 802.11, or limit this definition's use to applications (if TPC is not allowed in VHT STAs). Revised. Agree with the commenter that the changes made in 11ac regarding transmit power applies tpo VHT only, and for now it’d be better to keep the definition for Cluases 18, 19 and 20. See the editing instruction under CID 10235 in document 13/xxxx.