# US 2021/0243824 A1 · Method and apparatus used in wlan networks > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243824 A1 - Document ID: US20210243824A1 - Status: Published application - Kind: A1 - Application number: 17/234,740 - Filed: 2021-04-19 - Published: 2021-08-05 - Earliest claimed: 2021-04-19 - Assignees: Intel Corporation - Applicants: Intel Corporation - Inventors: Laurent CARIOU; Thomas KENNEY - Web page: https://patentgrep.com/patent/US20210243824A1 ## CPC - H04W 74/006: {in the downlink, i.e. towards the terminal} - H04W 76/11: Allocation or use of connection identifiers - H04B 17/318: Received signal strength - H04W 74/0825: {with collision detection} - H04W 48/12: using downlink control channel - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA] - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract The application provides a method, comprising: generating identifying information at an access point (AP), the identifying information including information relating to an energy detection (ED) threshold to be used for a channel in a wireless network; and broadcasting the identifying information via the channel. ## Claims ### Claim 1 A method comprising: generating identifying information at an access point (AP), the identifying information including information relating to an energy detection (ED) threshold to be used for a channel in a wireless network; and broadcasting the identifying information via the channel. ### Claim 2 (depends on 1) The method of claim 1, wherein the identifying information further includes coding type information indicating either a fixed ED threshold or a variable ED threshold is to be used for the channel. ### Claim 3 (depends on 1) The method of claim 1, wherein the identifying information can be included in a reduced neighbor report (RNR). ### Claim 4 (depends on 2) The method of claim 2, further comprising: determining a first ED threshold to be used for the channel based on the information relating to the ED threshold included in the identifying information when the encoding type information indicates that a fixed ED threshold is to be used for the channel. ### Claim 5 (depends on 4) The method of claim 4, wherein the information relating to the ED threshold included in the identifying information includes a fixed ED threshold form which the first ED threshold is determined. ### Claim 6 (depends on 2) The method of claim 2, further comprising: determining a second ED threshold to be used for the channel based on the information relating to the ED threshold included in the identifying information when the encoding type information indicates that a variable ED threshold is to be used for the channel. ### Claim 7 (depends on 6) The method of claim 6, wherein the information relating to the ED threshold included in the identifying information includes a ED threshold maximum value, a ED threshold minimum value, a transmission (TX) power threshold maximum value for a station (STA), a TX power threshold minimum value for the STA and a slope of the ED threshold varying with the TX power of the STA from which the second ED threshold is determined. ### Claim 8 (depends on 7) The method of claim 7, further comprising: determining the ED threshold maximum value as the second ED threshold to be used for the channel when a TX power of the STA is lower than or equal to the TX power threshold minimum value. ### Claim 9 (depends on 7) The method of claim 7, further comprising: determining the ED threshold minimum value as the second ED threshold to be used for the channel when a TX power of the STA is higher than or equal to the TX power threshold maximum value. ### Claim 10 (depends on 7) The method of claim 7, further comprising: determining the second ED threshold to be used for the channel that is a sum of i) the ED threshold minimum value and ii) a product of the slope and a difference between the TX power maximum value and a TX power of the STA when the TX power of the STA is larger than the TX power minimum value but lower than the TX power maximum value. ### Claim 11 A method comprising: receiving identifying information generated at an access point (AP), the identifying information including information relating to an energy detection (ED) threshold to be used for a channel in a wireless network; and determining an ED threshold to be used for the channel based on the identifying information. ### Claim 12 (depends on 11) The method of claim 11, wherein the identifying information further includes coding type information indicating either a fixed ED threshold or a variable ED threshold is to be used for the channel. ### Claim 13 (depends on 12) The method of claim 12, wherein determining an ED threshold to be used for the channel based on the identifying information comprises: determining a first ED threshold to be used for the channel based on the information relating to the ED threshold included in the identifying information when the encoding type information indicates that a fixed ED threshold is to be used for the channel. ### Claim 14 (depends on 13) The method of claim 13, wherein the information relating to the ED threshold included in the identifying information includes a fixed ED threshold form which the first ED threshold is determined. ### Claim 15 (depends on 12) The method of claim 12, wherein determining an ED threshold to be used for the channel based on the identifying information comprises: determining a second ED threshold to be used for the channel based on the information relating to the ED threshold included in the identifying information when the encoding type information indicates that a variable ED threshold is to be used for the channel. ### Claim 16 (depends on 15) The method of claim 15, wherein the information relating to the ED threshold included in the identifying information includes a ED threshold maximum value, a ED threshold minimum value, a transmission (TX) power threshold maximum value for a station (STA), a TX power threshold minimum value for the STA and a slope of the ED threshold varying with the TX power of the STA from which the second ED threshold is determined. ### Claim 17 (depends on 16) The method of claim 16, wherein determining an ED threshold to be used for the channel based on the identifying information comprises: determining the ED threshold maximum value as the second ED threshold to be used for the channel when a TX power of the STA is lower than or equal to the TX power threshold minimum value. ### Claim 18 (depends on 16) The method of claim 16, wherein determining an ED threshold to be used for the channel based on the identifying information comprises: determining the ED threshold minimum value as the second ED threshold to be used for the channel when a TX power of the STA is higher than or equal to the TX power threshold maximum value. ### Claim 19 (depends on 16) The method of claim 16, wherein determining an ED threshold to be used for the channel based on the identifying information comprises: determining the second ED threshold to be used for the channel that is a sum of i) the ED threshold minimum value and ii) a product of the slope and a difference between the TX power maximum value and a TX power of the STA when the TX power of the STA is larger than the TX power minimum value but lower than the TX power maximum value. ### Claim 20 (depends on 11) A station (STA) comprising: a wireless medium; and processor circuitry coupled to the wireless medium and configured to implement the method of claim 11.