Patent 11356947

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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To identify the most relevant prior art for US patent 11356947, I will examine the patent references cited within its own text. The core inventive concept of US11356947 focuses on efficiently signaling non-contiguous channel allocation information, particularly through non-legacy preambles (HE-SIG-A and HE-SIG-B fields) in wireless communication (e.g., WLAN/802.11ax).

Here are the patent references cited by US11356947 and their potential relevance:

  1. US20150373673A1

    • Full Citation: US 2015/0373673 A1, "METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM", filed June 18, 2015, published December 24, 2015, by Kwak et al. (assigned to LG ELECTRONICS INC.)
    • Publication/Filing Date: Filing: 2015-06-18; Publication: 2015-12-24.
    • Brief Description: This patent application describes methods and apparatuses for transmitting and receiving data in a wireless communication system, specifically addressing channel access in wireless LAN systems. It discusses transmitting frames, including RTS/CTS frames, and handling busy channels, potentially involving subchannels and managing bandwidth.
    • Potential Anticipation (35 U.S.C. § 102): This reference potentially anticipates aspects of US11356947 related to channel access (CCA), transmission of control frames (RTS/CTS), and general multi-channel operation in wireless communication. For example, it could be relevant to portions of Independent Claim 14 which describes a base wireless communication terminal performing CCA of multiple channels and transmitting a packet through idle channels. The concept of managing transmission based on channel availability is a foundational aspect that this reference likely covers.

  2. US20170064560A1

    • Full Citation: US 2017/0064560 A1, "WIRELESS LAN SYSTEM AND METHOD OF TRANSMITTING AND RECEIVING DATA IN THE WIRELESS LAN SYSTEM", filed August 26, 2016, published March 2, 2017, by Park et al. (assigned to LG ELECTRONICS INC.)
    • Publication/Filing Date: Filing: 2016-08-26; Publication: 2017-03-02.
    • Brief Description: This application generally relates to a wireless LAN system and methods for transmitting and receiving data. It appears to focus on efficient data exchange within WLANs, potentially covering aspects like frame formats, resource allocation, and multi-user communication.
    • Potential Anticipation (35 U.S.C. § 102): Given its broad title, this reference could potentially touch upon various elements of wireless communication, including packet reception and decoding (Independent Claim 1 and 13) and general resource management. Depending on its specific disclosures regarding preamble structures or signaling for bandwidths, it might also bear on the signaling aspects of Independent Claim 14 and 19. Without a more detailed abstract or claim analysis, it's hard to pinpoint specific anticipation beyond general wireless communication methods.

  3. US20170195972A1

    • Full Citation: US 2017/0195972 A1, "METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM", filed December 29, 2016, published July 6, 2017, by Choi et al. (assigned to LG ELECTRONICS INC.)
    • Publication/Filing Date: Filing: 2016-12-29; Publication: 2017-07-06.
    • Brief Description: This document focuses on data transmission and reception in wireless communication systems, particularly addressing data unit structures and how information is conveyed within these units. It likely involves signaling various parameters for communication efficiency.
    • Potential Anticipation (35 U.S.C. § 102): This reference's focus on data unit structures and information conveyance could be relevant to the format and content of wireless packets (Independent Claim 1 and 13). If it discloses methods for signaling channel allocation information, especially within preambles, it could potentially anticipate aspects of Independent Claim 14 and 19, particularly regarding the signaling of allocation information.

  4. US20170245229A1

    • Full Citation: US 2017/0245229 A1, "METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM", filed February 17, 2017, published August 24, 2017, by Lee et al. (assigned to LG ELECTRONICS INC.)
    • Publication/Filing Date: Filing: 2017-02-17; Publication: 2017-08-24.
    • Brief Description: This patent application describes methods and apparatuses for data transmission and reception in wireless communication, likely covering aspects of channel allocation and multi-user scenarios. Given the assignee, it probably relates to IEEE 802.11 standards development.
    • Potential Anticipation (35 U.S.C. § 102): This reference, like others from LG Electronics, likely addresses fundamental aspects of wireless communication and resource allocation. It could potentially anticipate aspects of how channel allocation is performed or how packets are processed (Independent Claim 1, 13, 14, and 19). The specific details on non-contiguous channel allocation and signaling via non-legacy preamble would be key to determining if it fully anticipates or only provides related background.

  5. US20180213451A1

    • Full Citation: US 2018/0213451 A1, "METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING FRAME IN WIRELESS LOCAL AREA NETWORK SYSTEM", filed October 19, 2017, published July 26, 2018, by Kwak et al. (assigned to LG ELECTRONICS INC.)
    • Publication/Filing Date: Filing: 2017-10-19; Publication: 2018-07-26.
    • Brief Description: This application specifically addresses methods and apparatuses for transmitting and receiving frames in a Wireless Local Area Network (WLAN) system. It likely deals with frame structures, preambles, and the signaling of information for various transmission modes in WLAN environments, potentially including multi-user or wideband transmissions.
    • Potential Anticipation (35 U.S.C. § 102): This reference is highly relevant due to its explicit focus on "transmitting and receiving frame in Wireless Local Area Network System". Given the general problem addressed by US11356947 (efficient signaling of non-contiguous channels in WLAN), this prior art likely discusses frame formats and preamble structures. It could potentially anticipate aspects of Independent Claims 1 and 13 (receiving packets, obtaining and decoding based on channel allocation) and is particularly relevant to Independent Claims 14 and 19 regarding a base terminal signaling non-contiguous channel allocation information via a non-legacy preamble. The extent of anticipation would depend on whether it specifically discloses "non-contiguous" allocation and its signaling within "non-legacy preambles" (like HE-SIG-A/B) in the same manner as claimed by US11356947.

Overall Relevance Assessment:

The cited prior art, primarily from LG Electronics, generally covers wireless communication methods, WLAN systems, data transmission/reception, and frame structures. These references establish a foundation for understanding multi-channel operations and signaling in wireless networks, which are the broad areas US11356947 operates within.

The distinctiveness of US11356947, as suggested by its claims and abstract, lies in the efficient signaling of non-contiguous channel allocation information specifically within a non-legacy preamble (e.g., using HE-SIG-A/B fields) of a wireless packet, and the subsequent decoding based on this information. Therefore, the most relevant prior art would be those that detail:

  1. Non-contiguous channel operation: Systems that can use disconnected frequency bands for a single transmission.
  2. Signaling mechanisms in preambles: How transmission parameters, especially channel allocation, are conveyed in the preamble of a packet.
  3. Non-legacy (e.g., 802.11ax/HE) specific preamble fields: Disclosures concerning the structure and use of HE-SIG-A and HE-SIG-B fields for signaling.

US20180213451A1, with its specific focus on "transmitting and receiving frame in Wireless Local Area Network System," appears to be the most directly relevant as it would likely deal with frame formats and preamble structures in a WLAN context, which is closest to the detailed signaling aspects of US11356947. The other references provide a broader context of multi-channel and multi-user transmissions.

A definitive determination of anticipation under 35 U.S.C. § 102 would require a detailed claim construction and an element-by-element comparison of each independent and dependent claim of US11356947 against the full disclosure of each cited prior art reference. The descriptions above highlight potential overlaps in subject matter.

Generated 7/6/2026, 6:02:40 PM