27-12-2018 дата публикации
Номер: US20180376507A1
Принадлежит:
Disclosed are multi-user transmission methods in a wireless local access network (WLAN). An operation method performed in a first station may comprise generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including a legacy preamble, a high efficiency (HE) preamble, and a payload; and transmitting the PPDU. Also, the HE preamble may include a HE signal A (HE-SIG-A) field, a HE signal B (HE-SIG-B) field, a HE short training field (HE-STF), and a HE long training field (HE-LTF), and the HE-SIG-A field may include information indicating the number of symbols of the HE-SIG-B field. Accordingly, a performance of the WLAN may be enhanced. 1. An operation method of a first station in a wireless local area network (WLAN) , the method comprising:determining, by the first station, an number of symbols to be used to transmit a High Efficiency Signal B (HE-SIG-B) field;generating, by the first station, a High Efficiency Signal A (HE-SIG-A) field, the HE-SIG-A field including an indication of the determined number of symbols to be used to transmit the HE-SIG-B field;generating, by the first station, a physical layer protocol data unit (PPDU) including a legacy preamble, a high efficiency (HE) preamble, and a payload, the HE preamble including the HE-SIG-A field and the HE-SIG-B field; andtransmitting, by the first station, the PPDU, transmitting the PPDU including transmitting the HE-SIG-B field according to the determined number of symbols number of symbols to be used to transmit the HE-SIG-B field.2. The method of claim 1 , wherein the number of symbols to be used to transmit the HE-SIG-B field is determined based on transmission bandwidth information of the PPDU included in the HE-SIG-A field.3. The method of claim 1 , wherein the number of symbols to be used to transmit the HE-SIG-B field is determined based on transmission bandwidth information of the PPDU and information on a size of resource allocated to a station receiving the PPDU included ...
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