# US 2026/0101255 A1 · Method and system for handling ping-pong handover event between a plurality of access points > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2026/0101255 A1 - Document ID: US20260101255A1 - Status: Published application - Kind: A1 - Application number: 19/415,165 - Filed: 2025-12-10 - Published: 2026-04-09 - Earliest claimed: 2024-09-03 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Manasi EKKUNDI; Karthik Srinivasa GOPALAN; Abhishek CHATURVEDI - Web page: https://patentgrep.com/patent/US20260101255A1 ## CPC - H04W 36/00837: {Determination of triggering parameters for hand-off} - H04W 36/08: Reselecting an access point - H04W 52/0235: {where the received signal is a power saving command} - H04W 52/028: {switching on or off only a part of the equipment circuit blocks} - H04W 60/04: using triggered events - H04W 76/10: Connection setup - 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) ## Abstract A method for handling a ping-pong handover event between a plurality of Access Points (APs) in a wireless communication network includes detecting an occurrence of a number of ping-pong handover events between a first AP and a second AP; determining whether the number of ping-pong handover events between the first AP and the second AP exceeds a predefined threshold value; transmitting a re-association request to the second AP, wherein re-association request comprises an indication of a required service type for the electronic device and a flag indicating a requirement for assistance for the electronic device; and receiving station (STA) assistance information from the second AP to manage the required service type for the electronic device. ## Claims ### Claim 1 An electronic device comprising: at least one processor comprising processing circuitry; and memory storing instructions, wherein at least one processor, individually or collectively, is configured to execute the instructions and to cause the electronic device to: determine a number of ping-pong handover events between a first access point (AP) and a second AP; determine whether the number of ping-pong handover events between the first AP and the second AP exceeds a defined threshold; and in response to determining that the number of the ping-pong handover events between the first AP and the second AP exceeds the defined threshold, transmit a re-association request to the second AP with a required service type, wherein the electronic device is previously connected with the first AP, wherein the re-association request comprises an indication of a required service type for the electronic device and a flag indicating a requirement for assistance for the electronic device. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein at least one processor, individually or collectively, is configured to cause the electronic device to: receive a station (STA) assistance information from the second AP, wherein the station (STA) assistance information includes information for managing the required service type for the electronic device. ### Claim 3 (depends on 1) The electronic device of claim 1, wherein at least one processor, individually or collectively, is configured to cause the electronic device to: transmit an association request to the first AP to establish a first communication channel between the electronic device and the first AP, wherein the association request comprises an indication of the required service type for the electronic device; detect a temporary signal blockage associated with the first established communication channel; in response to detecting a temporary blockage, identify the second AP to establish a second communication channel between the electronic device and the second AP, wherein a signal quality or signal strength associated with the second established communication channel is superior to the first established communication channel; transmit the re-association request to the identified second AP, detect that the temporary blockage has cleared, wherein a signal quality or signal strength associated with the first established communication channel is superior to the second established communication channel; and in response to detecting that the temporary blockage has cleared, transmit the re-association request along with the required service type indication to the first AP. ### Claim 4 (depends on 1) The electronic device of claim 1, wherein the re-association request and the association request comprise a station (STA) assistance information to provide the indication of the required service type for the electronic device. ### Claim 5 (depends on 2) The electronic device of claim 2, wherein the station (STA) assistance information comprises a plurality of parameters, wherein the plurality of parameters comprises at least one of an identity of element, a length of element, an element ID extension, a control flag, and at least one required service type, wherein the at least one service type comprises at least one of a throughput preference, a reliability preference, a low latency preference, a power saving preference, and a request assistance flag, a hysteresis signal threshold, and a delay threshold. ### Claim 6 (depends on 5) The electronic device of claim 5, wherein the plurality of parameters comprises an identity of element, a length of element, an element ID extension, a control flag, and at least one required service type, wherein the at least one service type comprises a throughput preference, a reliability preference, a low latency preference, a power saving preference, and a request assistance flag. ### Claim 7 (depends on 5) The electronic device of claim 5, wherein the control flag indicates whether the station (STA) assistance information comprises one of a plurality of throughput preference, reliability preference, low latency preference, and power saving preference; wherein the throughput preference indicates a type of throughput requirements for the electronic device, comprising one of a low throughput, a medium throughput, and a high throughput, and the throughput represented by one or more bits indicating data rates; wherein the reliability preference indicates a type of reliability requirements for the electronic device, comprising one of a low reliability, a medium reliability, and a high reliability, and the reliability represented by an error rate tolerance value; wherein the low latency preference is represented by a value indicating latency tolerance or latency requirement in numbers; wherein the power saving preference indicates a type of power saving requirements for the electronic device comprising a low power saving, a medium power saving, and a high power saving, and the power saving preference is represented by a power save category value; wherein the request assistance and the request assistance flag indicate whether the electronic device requires assistance, and the request assistance and the request assistance flag are represented by a set of bits that indicate whether assistance is needed and a device status; wherein the hysteresis signal threshold indicates minimum and maximum hysteresis thresholds suitable for the electronic device, wherein the hysteresis threshold includes a signal threshold value indicating at least one AP to the electronic device to add an offset to the electronic device-implemented-threshold values for roaming, and the hysteresis signal threshold is represented by a set of bits indicating a minimum and maximum range of hysteresis thresholds tolerable at the electronic device; wherein the delay threshold indicates minimum and maximum delays suitable for the electronic device; and wherein the delay threshold is represented as a time interval that the electronic device waits, after a roaming condition occurs as per device implementation, before the electronic device triggers a roaming, and the delay threshold is represented by a set of bits that indicate a minimum and maximum range of delay thresholds that are tolerable at the electronic device. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the received STA assistance information at the electronic device comprises a plurality of parameters; and wherein the plurality of parameters comprises a category value, a STA assistance information action value, an assistance information flag, a hysteresis recommendation, a duration recommendation, and an AP recommendation. ### Claim 9 (depends on 8) The electronic device of claim 8, wherein the STA assistance information action value indicates a presence or reservation of the STA assistance information; wherein the assistance information flag is represented by a set of bits that indicate whether one or more packets comprise a hysteresis signal, a duration, and an AP recommendation, a roaming recommendation, or one or more reserved bits; wherein the hysteresis recommendation indicates a type of hysteresis requirements for the electronic device, comprising one of a no hysteresis, a positive hysteresis, and a negative hysteresis; wherein the duration recommendation indicates whether action is immediate or occurs after a defined time unit, as recommended by at least one second AP; and wherein the AP recommendation indicates a list of suitable APs based on one or more preferences indicated by the electronic device. ### Claim 10 An electronic device comprising: at least one processor comprising processing circuitry; and memory storing instructions, wherein at least one processor, individually or collectively, is configured to execute the instructions and to cause the electronic device to: determine a number of ping-pong handover events between a first access point (AP) and a second AP; determine whether the number of ping-pong handover events between the first AP and the second AP exceeds a defined threshold; in response to determining that the number of the ping-pong handover events between the first AP and the second AP exceeds the defined threshold value, trigger a service type event in the electronic device, wherein the service type event comprises one or more of a power saving event, a throughput event, a latency event, and a reliability event; and in response to triggering the service type event, transmit a station (STA) assistance request to the second AP, wherein the electronic device is previously connected with the first AP, wherein the station (STA) assistance request comprises an indication of a service type event required for the electronic device and a ping-pong flag indicating a requirement for assistance for the electronic device. ### Claim 11 (depends on 10) The electronic device of claim 10, wherein at least one processor, individually or collectively, is configured to cause the electronic device to: receive a station (STA) assistance information from the second AP, wherein the station (STA) assistance information includes information for managing the required service type for the electronic device. ### Claim 12 (depends on 10) The electronic device of claim 10, wherein the station (STA) assistance response indicates a preferable AP among the plurality of APs for the service type event. ### Claim 13 (depends on 10) The electronic device of claim 10, wherein, prior to detecting the ping-pong handover events between the first AP and the second AP, at least one processor, individually or collectively, is configured to cause the electronic device to: transmit an association request to the first AP to establish a first communication channel between the electronic device and the first AP, detect a temporary signal blockage associated with the first established communication channel; in response to detecting the temporary blockage, identify the second AP to establish a second communication channel between the electronic device and the second AP, wherein a signal quality or signal strength associated with the second established communication channel is superior to the first established communication channel; transmit a re-association request to the identified second AP, detect that the temporary blockage has cleared, wherein a signal quality or signal strength associated with the first established communication channel is superior to the second established communication channel; and in response to detecting that the temporary blockage has cleared, transmit the re-association request along with the indication to the first AP. ### Claim 14 (depends on 10) The electronic device of claim 10, wherein the station (STA) assistance request comprises a plurality of parameters; and wherein the plurality of parameters comprises a category value, a STA Assistance Message Action value, and a STA assistance request message element. ### Claim 15 (depends on 10) The electronic device of claim 10, wherein the station (STA) assistance information comprises a plurality of parameters, wherein the plurality of parameters comprises one or more of an identity of element, a length of element, an element ID extension, a control flag, and at least one required service type, wherein the at least one service type comprises one or more of a throughput preference, a reliability preference, a low latency preference, a power saving preference, and a request assistance flag, a hysteresis signal threshold, and a delay threshold. ### Claim 16 (depends on 15) The electronic device of claim 15, wherein the plurality of parameters comprises an identity of element, a length of element, an element ID extension, a control flag, and at least one required service type, wherein the at least one service type comprises a throughput preference, a reliability preference, a low latency preference, a power saving preference, and a request assistance flag. ### Claim 17 (depends on 15) The electronic device of claim 15, wherein the control flag indicates whether the STA assistance information comprises the throughput preference, the reliability preference, the low latency preference, and the power saving preference; wherein the throughput preference indicates a type of throughput requirements for the electronic device, comprising one of a low throughput, a medium throughput, and a high throughput, and the throughput represented by one or more bits indicating data rates; wherein the reliability preference indicates a type of reliability requirements for the electronic device, comprising one of a low reliability, a medium reliability, and a high reliability, and the reliability represented by an error rate tolerance value; wherein the low latency preference is represented by a value indicating latency tolerance or latency requirement in numbers; wherein the power saving preference indicates a type of power saving requirements for the electronic device, comprising a low power saving, a medium power saving, and a high power saving, and the power saving preference is represented by a power save category value; wherein the request assistance and the request assistance flag indicate whether the electronic device requires assistance, and the request assistance and the request assistance flag are represented by a set of bits that indicate whether assistance is needed and a device status; wherein the hysteresis signal threshold indicates minimum and maximum hysteresis thresholds suitable for the electronic device, wherein the hysteresis threshold is a signal threshold value that indicates by at least one AP to the electronic device to add an offset to the electronic device (500)-implemented-threshold values for roaming, and the hysteresis signal threshold is represented by a set of bits that indicate a minimum and maximum range of hysteresis thresholds tolerable at the electronic device; wherein the delay threshold indicates minimum and maximum delays suitable for the electronic device; and wherein the delay threshold is represented as a time interval that the electronic device waits, after a roaming condition occurs as per device implementation, before the electronic device triggers a roaming, and the delay threshold is represented by a set of bits that indicate a minimum and maximum range of delay thresholds that are tolerable at the electronic device. ### Claim 18 (depends on 10) The electronic device of claim 10, wherein the STA assistance response comprises a plurality of parameters; and wherein the plurality of parameters comprises a category value, a STA assistance information action value, and a STA assistance response message element; and wherein the STA assistance response message element comprises an identity of element, a length of element, an element ID extension, an assistance information flag, a hysteresis recommendation, a duration recommendation, and an AP recommendation. ### Claim 19 (depends on 18) The electronic device of claim 18, wherein the STA assistance information action value indicates a presence or reservation of the STA assistance information; wherein the assistance information flag is represented by a set of bits that indicate whether one or more packets comprise a hysteresis signal, a duration, and an AP recommendation, a roaming recommendation, or one or more reserved bits; wherein the hysteresis recommendation indicates a type of hysteresis requirements for the electronic device, comprising one of a no hysteresis, a positive hysteresis, and a negative hysteresis; wherein the duration recommendation indicates whether action is immediate or occurs after a defined time units, as recommended by at least one AP; and wherein the AP recommendation indicates a list of suitable APs based on one or more preferences indicated by the electronic device. ### Claim 20 A second access point (AP) comprising: at least one processor comprising processing circuitry; and memory storing instructions, wherein at least one processor, individually or collectively, is configured to execute the instructions and to cause the second AP to: receive a re-association request from an electronic device, wherein the electronic device is previously connected with a first AP, wherein the re-association request comprises an indication of a required service type for the electronic device and a flag indicating a requirement for assistance for the electronic device; generate a recommendation based on the received STA assistance request; and transmit a station (STA) assistance information to the electronic device to manage the required service type for the electronic device, wherein the STA assistance information comprises the generated recommendation.