US 11,601,972 B2Granted

Method and apparatus for sending and receiving signaling in wireless local area network

AssigneeHuawei Technologies Co., Ltd.

InventorsYingpei Lin, Jiayin Zhang, Jun Luo, Le Liu

Life of this patent

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Abstract

The method includes generating, by an access point (AP), signaling that includes an AP identifier (ID) field, a bandwidth (BW) field, a guard interval (GI) field, a cyclic redundancy check (CRC) field, and a tail field, the AP ID field is used to indicate an ID of the AP, the BW field is used to indicate bandwidth required for data transmission subsequent to the signaling, the GI is used to indicate a length of a cyclic prefix (CP) required for data transmission subsequent to the signaling, the CRC field is used to guard a field before the CRC field in the signaling, and the Tail field is used to empty an encoder and a decoder, where the CRC field and the Tail field are the last two fields of the signaling. The method also includes sending, by the AP, the signaling.

Claims20

Dependent claims

An apparatus, comprising:

a processor, configured to generate a physical protocol data unit (PPDU) for a downlink multiple-user transmission, wherein the PPDU includes:
a legacy preamble, a high efficiency Wi-Fi Signaling Field 1 (HEW-SIG1), a high efficiency Wi-Fi Signaling Field 2 (HEW-SIG2), adjacent to the HEW-SIG1, and a data portion, and wherein the HEW-SIG1 comprises a HEW-SIG2 modulation and coding scheme (HEW-SIG2 MCS) field, the HEW-SIG2 MCS field indicates a transmission modulation and coding scheme (MCS) used to transmit the HEW-SIG2, the HEW-SIG1 further comprises a frame structure indication field, and the frame structure indication field indicates whether a frame structure of a scheduling transmission is an uplink structure or a downlink structure, and the HEW-SIG2 comprises resource indication information;
and
a transmitter coupled to the processor, wherein the transmitter is configured to send the PPDU in a wireless local area network (WLAN).

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/932,333Filed 17 Jul 2020 · continuation
Priority: WO PCT/CN2014/08897220 Oct 2014
Published: US 2020/0351939 A15 Nov 2020
Granted: 7 Mar 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
H04L 5/0092
Signalling for the administration of the divided path, e.g. signalling of configuration information: indication of how the channel is divided
H04L 69/22
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA

Family

PCT/CN2015/070252Parent of this continuation · filed 7 Jan 2015
Application15/492,053Parent of this continuation · filed 20 Apr 2017
Application16/411,961Parent of this continuation · filed 14 May 2019
US 10,342,042 B2Parent of this continuation · filed 2 Jul 2019
US 2020/0351939 A1Pre-grant publication · published 5 Nov 2020
US 10,721,768 B2Parent of this continuation
US 2017/0223734 A1Published application
US 2019/0281626 A1Published application
US 11,601,972 B2This patent

From the US filing history. Foreign family members aren’t listed.