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JP-7857441-B2 - Method and apparatus for transmitting or receiving on a wide bandwidth channel in a wireless LAN system

JP7857441B2JP 7857441 B2JP7857441 B2JP 7857441B2JP-7857441-B2

Inventors

  • パク ウンソン
  • チョン チンヨン
  • チェ チンス
  • イム トングク

Assignees

  • エルジー エレクトロニクス インコーポレイティド

Dates

Publication Date
20260512
Application Date
20230510
Priority Date
20220526

Claims (14)

  1. The first STA (station) generates a PPDU (physical layer protocol data unit) within the bandwidth including the primary and secondary channels, The first STA includes the step of transmitting the PPDU on a predetermined channel corresponding to a channel width smaller than the bandwidth, The PPDU includes at least one field containing allocation information for at least one RU (resource unit) on the predetermined channel, The predetermined channel includes a first channel and a second channel, The second channel is located across the primary channel and the secondary channel of the bandwidth, The first frequency portion of the second channel is included in the primary channel of the bandwidth, and the second frequency portion of the second channel is included in the secondary channel of the bandwidth. A method wherein the size of the second channel is twice the size of the first channel .
  2. The method according to claim 1, wherein the entirety of the first channel is included in the primary channel of the bandwidth.
  3. The method according to claim 1, wherein the size of the first channel is smaller than the size of the primary channel in terms of bandwidth.
  4. The method according to claim 1, wherein the first channel and the second channel are connected in the frequency domain.
  5. The method according to claim 4, wherein the first channel is located at a lower frequency than the second channel.
  6. The method according to claim 4, wherein the first channel is located at a higher frequency than the second channel.
  7. The first channel corresponds to the primary 160MHz channel of the predetermined channel, The method according to claim 1, wherein the second channel corresponds to the secondary 320 MHz channel of the predetermined channel .
  8. The aforementioned bandwidth corresponds to 640 MHz. The primary channel of the aforementioned bandwidth corresponds to the primary 320MHz channel. The method according to claim 1, wherein the secondary channel of the bandwidth corresponds to a secondary 320 MHz channel.
  9. The method according to claim 1, wherein the channel width of the predetermined channel corresponds to 480 MHz.
  10. At least one transceiver and, The system includes at least one processor connected to the at least one transceiver, The aforementioned at least one processor is A PPDU (physical layer protocol data unit) is generated within the bandwidth including the primary and secondary channels. The PPDU is configured to be transmitted via at least one transceiver on a predetermined channel corresponding to a channel width smaller than the aforementioned bandwidth. The PPDU includes at least one field containing allocation information for at least one RU (resource unit) on the predetermined channel, The predetermined channel includes a first channel and a second channel, The second channel is located across the primary channel and the secondary channel of the bandwidth, The first frequency portion of the second channel is included in the primary channel of the bandwidth, and the second frequency portion of the second channel is included in the secondary channel of the bandwidth. The apparatus wherein the size of the second channel is twice the size of the first channel .
  11. The second STA (station) receives a PPDU (physical layer protocol data unit) on a predetermined channel with a channel width smaller than the bandwidth including the primary and secondary channels. The second STA includes the step of processing the PPDU based on assignment information for at least one resource unit (RU) on a predetermined channel contained in at least one field of the PPDU, The predetermined channel includes a first channel and a second channel, The second channel is located across the primary channel and the secondary channel of the bandwidth, The first frequency portion of the second channel is included in the primary channel of the bandwidth, and the second frequency portion of the second channel is included in the secondary channel of the bandwidth. A method wherein the size of the second channel is twice the size of the first channel .
  12. At least one transceiver and, The system includes at least one processor connected to the at least one transceiver, The aforementioned at least one processor is A PPDU (physical layer protocol data unit) is received via at least one transceiver on a predetermined channel with a channel width smaller than the bandwidth including the primary and secondary channels. The system is configured to process the PPDU based on allocation information for at least one resource unit (RU) on a predetermined channel contained in at least one field of the PPDU. The predetermined channel includes a first channel and a second channel, The second channel is located across the primary channel and the secondary channel of the bandwidth, The first frequency portion of the second channel is included in the primary channel of the bandwidth, and the second frequency portion of the second channel is included in the secondary channel of the bandwidth. The apparatus wherein the size of the second channel is twice the size of the first channel .
  13. A processing unit configured to control a station (STA) in a WLAN (wireless local area network) system, wherein the processing unit is: At least one processor, A processing unit comprising: at least one computer memory operably connected to the at least one processor and storing instructions for performing the method according to any one of claims 1 to 9 based on being executed by the at least one processor.
  14. A non-temporary computer-readable medium for storing at least one instruction, A non-temporary computer-readable medium wherein the at least one instruction is executed by at least one processor to control a station (STA) device in a wireless local area network (WLAN) system to perform the method according to any one of claims 1 to 9 .

Description

This disclosure relates to a transmission or reception method and apparatus for a wide bandwidth channel in a Wireless Local Area Network (WLAN) system. New technologies are being introduced to wireless LANs (WLANs) to improve transmission rates, increase bandwidth, enhance reliability, reduce errors, and decrease latency. Within wireless LAN technology, the IEEE (Institute of Electrical and Electronics Engineers) 802.11 series standards can be referred to as Wi-Fi. For example, recently introduced technologies in wireless LANs include improvements to the 802.11ac standard's VHT (Very High-Throughput) and improvements to the IEEE 802.11ax standard's HE (High Efficiency). To provide a more advanced wireless communication environment, improved technologies for Extremely High Throughput (EHT) are being discussed. For example, technologies for supporting increased bandwidth, efficient utilization of multiple bandwidths, increased spatial streams (MIMO - Multiple Input Multiple Output), and multiple access point (AP) coordination are being researched. In particular, various technologies to support low-latency or real-time traffic are being studied. Furthermore, new technologies to support ultra-high reliability (UHR), including improvements or extensions to EHT technology, are being discussed. The accompanying drawings, included as part of the detailed description to aid in understanding this disclosure, provide examples of this disclosure and illustrate the technical features of this disclosure together with the detailed description. This is a block diagram illustrating an example of a wireless communication device according to one embodiment of the present disclosure.This figure shows an exemplary structure of a wireless LAN system to which this disclosure can be applied.This diagram illustrates the link setup process to which this disclosure can be applied.This diagram illustrates the backoff process to which this disclosure applies.This diagram illustrates the CSMA/CA baseframe transmission operation to which this disclosure can be applied.This figure illustrates an example of a frame structure used in a wireless LAN system to which this disclosure can be applied.This figure shows examples of PPDUs as defined in the IEEE 802.11 standard to which this disclosure applies.This figure illustrates an example of a resource unit in a wireless LAN system to which this disclosure can be applied.This figure illustrates an example of a resource unit in a wireless LAN system to which this disclosure can be applied.This figure illustrates an example of a resource unit in a wireless LAN system to which this disclosure can be applied.This is a diagram illustrating an exemplary structure of the HE-SIG-B field.This diagram illustrates the MU-MIMO scheme, in which multiple users/STAs are assigned to a single RU.This figure shows examples of PPDU formats to which this disclosure can be applied.This figure shows examples of channels defined for frequency bands to which this disclosure can be applied.This figure illustrates an example of a method for transmitting PPDUs based on a channel defined for a wide bandwidth, as relating to this disclosure.This figure illustrates an example of a method for receiving PPDUs based on a channel defined for a wide bandwidth, as relating to this disclosure.This figure shows an example of 480MHz channelization related to this disclosure.This figure shows further examples of 480MHz channelization related to this disclosure. Preferred embodiments relating to this disclosure will be described in detail below with reference to the accompanying drawings. The detailed description disclosed below, together with the accompanying drawings, is intended to illustrate exemplary embodiments of this disclosure and is not intended to represent the only possible embodiments of this disclosure. The following detailed description includes specific details to provide a complete understanding of this disclosure. However, those skilled in the art will understand that this disclosure is implementable without such specific details. In some cases, to avoid ambiguity in the concepts of this disclosure, known structures and devices may be omitted, or they may be shown in the form of block diagrams focusing on the core function of each structure and device. In this disclosure, when one component is “connected,” “joined,” or “linked” to another component, this may include not only direct connections but also indirect connections where other components exist between them. Furthermore, in this disclosure, the terms “includes” or “have” identify the presence of the referred features, stages, operations, elements, and/or components, but do not exclude the presence or addition of one or more other features, stages, operations, elements, components, and/or groups thereof. In this disclosure, terms such as "first," "second," etc., are used solely to distinguish one component from another, and are not used to limit the components