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CN-121986528-A - Service transmission method, non-AP MLD and communication system

CN121986528ACN 121986528 ACN121986528 ACN 121986528ACN-121986528-A

Abstract

The embodiment of the disclosure relates to a service transmission method, a non-AP MLD and a communication system. The service transmission method is applied to multi-connection site equipment non-AP MLD, and comprises the steps that Wi-Fi service and IDC service exist between the non-AP MLD and the AP MLD, and according to the fact that an STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC service and the Wi-Fi service exist in the same link, transmission operation of the Wi-Fi service and the IDC service is determined, wherein in the transmission operation, the non-AP MLD does not adjust QSRC parameters of the retransmission times of service quality data frames of a PPDU of the Wi-Fi service, and the STA attached to the non-AP MLD is a receiver or transmitter of the IDC service.

Inventors

  • DONG XIANDONG

Assignees

  • 北京小米移动软件有限公司

Dates

Publication Date
20260505
Application Date
20240813

Claims (20)

  1. The service transmission method is applied to non-AP MLD of multi-connection site equipment, and is characterized by comprising the following steps: A wireless fidelity Wi-Fi service and an in-device coexistence IDC service exist between the non-AP MLD and the multi-connection access point device AP MLD, and according to the fact that the STA attached to the non-AP MLD is a TXOP owner holder or a TXOP responder Responder of a current transmission opportunity TXOP and whether the IDC service and the Wi-Fi service exist in the same link, determining transmission operation of the Wi-Fi service and the IDC service; in the transmission operation, the non-AP MLD does not adjust a QSRC parameter of a quality of service data frame retransmission number of a PPDU of the Wi-Fi service; The STA attached to the non-AP MLD is the sender receiver or receiver transmitter of the IDC service.
  2. The traffic transmission method according to claim 1, wherein determining the transmission operation of the Wi-Fi traffic and the IDC traffic based on whether the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC traffic and the Wi-Fi traffic exist on the same link comprises: The first STA attached to the non-AP MLD is a TXOP holder, and the first STA is a receiver or transmitter of the IDC service, wherein the IDC service and Wi-Fi service exist on the same link; The first STA carries the existence duration of the IDC service in the wireless frame of the Wi-Fi service.
  3. The service transmission method according to claim 2, wherein the presence duration of the IDC service is within a coverage area of the TXOP and the priority of the IDC service is higher than that of the Wi-Fi service, the first STA delays transmission of the Wi-Fi service, selects a random backoff number in the same CW [ AC ] as that of the current TXOP, and performs Wi-Fi service transmission again without adjusting a QSRC parameter of a PPDU of the Wi-Fi service, and the priority of the IDC service is less than or equal to that of the Wi-Fi service, and the first STA does not delay transmission of the Wi-Fi service.
  4. The service transmission method according to claim 2, wherein the existence duration of the IDC service exceeds the coverage of the current TXOP, after DIFS of the IDC service transmission is completed, selecting a random back-off number in CW [ AC ] identical to that of the contention obtaining current TXOP to perform Wi-Fi service transmission again, and not adjusting QSRC parameters of PPDUs of the Wi-Fi service; The receiver or transmitter of the IDC service and the first STA belong to the same physical entity or belong to different physical entities.
  5. The traffic transmission method according to claim 1, wherein determining the transmission operation of the Wi-Fi traffic and the IDC traffic based on whether the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC traffic and the Wi-Fi traffic exist on the same link comprises: The second STA attached to the non-AP MLD is a TXOP holder, the second STA is a receiver or transmitter of the IDC service, the IDC service exists in a first link, the Wi-Fi service exists in a second link, the first link and the second link are NSTR links, or the non-AP MLD supports eMLSR or eMLMR modes.
  6. The traffic transmission method according to claim 5, wherein if the duration of the IDC traffic is within the coverage range of the TXOP, a third STA operating on the second link delays transmission of the Wi-Fi traffic, and selects a random backoff number in the same CW AC as the contention for obtaining the current TXOP to perform Wi-Fi traffic again, without adjusting a QSRC parameter of a PPDU of the Wi-Fi traffic.
  7. The service transmission method according to claim 5, wherein the existence duration of the IDC service exceeds the coverage of the current TXOP, after DIFS of the IDC service transmission is completed, selecting a random backoff number in a contention window CW [ AC ] identical to that of contention for obtaining the current TXOP to perform Wi-Fi service transmission again, and not adjusting a QSRC parameter of PPDU of the Wi-Fi service; The receiver or transmitter of the IDC service and the receiver of the Wi-Fi service belong to the same physical entity or belong to different physical entities.
  8. The traffic transmission method according to claim 1, wherein determining the transmission operation of the Wi-Fi traffic and the IDC traffic based on whether the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC traffic and the Wi-Fi traffic exist on the same link comprises: a fourth STA attached to the non-AP MLD is TXOP Responder, and the fourth STA is a sender transmitter of IDC service, wherein the IDC service and Wi-Fi service exist in the same link; And the non-AP MLD receives the indication information of the sender of the IDC service in the current TXOP and determines the existence time of the IDC service.
  9. The method of claim 8, wherein the duration of the IDC service is within the coverage of the TXOP, the fourth STA maintains an active state or a PS state for the duration of the IDC service, and continues to receive the Wi-Fi service after the DIFS that the IDC service transmission is completed.
  10. The method for transmitting IDC service according to claim 8, wherein the presence duration of IDC service exceeds the coverage of the current TXOP, the fourth STA enters a sleep state in the current TXOP and wakes up after DIFS that the IDC service transmission is completed, obtains the TXOP again based on EDCA mechanism, and continues to receive the Wi-Fi service.
  11. The traffic transmission method according to claim 1, wherein determining the transmission operation of the Wi-Fi traffic and the IDC traffic based on whether the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC traffic and the Wi-Fi traffic exist on the same link comprises: The fourth STA attached to the non-AP MLD is TXOP Responder, the fourth STA is a receiver of the IDC service, the IDC service and the Wi-Fi service exist in the same link, and the non-AP MLD identifies the existence duration of the IDC service.
  12. The service transmission method according to claim 11, wherein the presence duration of the IDC service is within a coverage range of the TXOP, and the fourth STA maintains an active state or a PS state for the presence duration of the IDC service and continues to receive the Wi-Fi service after the DIFS that the IDC service transmission is completed.
  13. The method for transmitting IDC service according to claim 11, wherein the presence duration of IDC service exceeds the coverage of the current TXOP, the fourth STA enters a sleep state in the current TXOP and wakes up after DIFS that the IDC service transmission is completed, obtains the TXOP again based on EDCA mechanism, and continues to receive the Wi-Fi service.
  14. The traffic transmission method according to claim 1, wherein determining the transmission operation of the Wi-Fi traffic and the IDC traffic based on whether the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC traffic and the Wi-Fi traffic exist on the same link comprises: The fifth STA attached to the non-AP MLD is TXOP Responder, the fifth STA is a sender transmitter of IDC service, the IDC service exists in a third link, the Wi-Fi service exists in a fourth link, the third link and the fourth link are NSTR links, or the non-AP MLD supports eMLSR or eMLMR modes.
  15. The method of claim 14, wherein the duration of the IDC service is within the coverage of the TXOP, and the fifth STA maintains an active state or a PS state in a third link for the duration of the IDC service and continues to receive the Wi-Fi service after DIFS is completed by the IDC service transmission.
  16. The traffic transmission method according to claim 14, wherein if the duration of the IDC traffic exceeds the coverage of the current TXOP, the fifth STA enters a PS state in the current TXOP under a third link and wakes up after the DIFS that the IDC traffic transmission is completed, obtains a TXOP again based on an EDCA mechanism, and continues to receive the Wi-Fi traffic.
  17. The traffic transmission method according to claim 1, wherein determining the transmission operation of the Wi-Fi traffic and the IDC traffic based on whether the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC traffic and the Wi-Fi traffic exist on the same link comprises: A fifth STA attached to the non-AP MLD is TXOP Responder, and the fifth STA is a receiver of IDC service, wherein the IDC service exists in a third link, the Wi-Fi service exists in a fourth link, the third link and the fourth link are NSTR links, or the non-AP MLD supports eMLSR or eMLMR modes; and the feedback message frame of the Wi-Fi service carries the existence duration of the IDC service of the fourth link.
  18. The method of claim 17, wherein the duration of the IDC service is within the coverage of the TXOP, and the fifth STA maintains an active state or a PS state in a third link for the duration of the IDC service and continues to receive the Wi-Fi service after DIFS is completed by the IDC service transmission.
  19. The traffic transmission method according to claim 17, wherein the duration of the IDC traffic exceeds the coverage of the current TXOP, and the fifth STA enters PS state in the current TXOP under a third link and wakes up after DIFS that the IDC traffic transmission is completed, obtains the TXOP again based on EDCA mechanism, and continues to receive the Wi-Fi traffic.
  20. A non-AP MLD, said non-AP MLD comprising: A determining module, configured to determine, according to whether a Wi-Fi service and an IDC service exist between the non-AP MLD and the AP MLD, that the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP, and whether the IDC service and the Wi-Fi service exist in the same link, a transmission operation of the Wi-Fi service and the IDC service; In the transmission operation, the non-AP MLD does not adjust QSRC parameters of the retransmission times of the service quality data frames of the PPDU of the Wi-Fi service; The STA attached to the non-AP MLD is a receiver or transmitter of the IDC service.

Description

Service transmission method, non-AP MLD and communication system Technical Field The disclosure relates to the technical field of communication, and in particular relates to a service transmission method, a non-AP MLD and a communication system. Background Currently, wi-Fi technology is being investigated for example ultra high reliability (Ultra High Reliability, UHR), which is promising for improving reliability of wireless local area network (Wireless Local Area Networks, WLAN) connections, reducing latency, improving manageability, increasing throughput at different signal-to-noise ratio (Signal to Noise Ratio, SNR) levels, and reducing device-level power consumption, etc. In UHR, when devices are In wireless fidelity (WIRELESS FIDELITY, WIFI) communication, there may also be other In-device coexistence (In-Device Coexistence, IDC) traffic. Therefore, transmission mechanisms of Wi-Fi service and IDC service need to be standardized to meet the transmission requirement of UHR. Disclosure of Invention The embodiment of the disclosure provides a service transmission method, a non-AP MLD and a communication system, so as to standardize transmission mechanisms of Wi-Fi service and IDC service. In one aspect, an embodiment of the present disclosure provides a service transmission method applied to a multi-connection site device non-AP MLD, where the method includes: Wi-Fi service and IDC service exist between the non-AP MLD and the AP MLD, and according to the TXOP holder or TXOP Responder that the STA attached to the non-AP MLD is the current TXOP and whether the IDC service and the Wi-Fi service exist in the same link, the transmission operation of the Wi-Fi service and the IDC service is determined; In the transmission operation, the non-AP MLD does not adjust QSRC parameters of the retransmission times of the service quality data frames of the PPDU of the Wi-Fi service; The STA attached to the non-AP MLD is a receiver or transmitter of the IDC service. In another aspect, embodiments of the present disclosure also provide a non-AP MLD, the non-AP MLD including: A determining module, configured to determine, according to whether a Wi-Fi service and an IDC service exist between the non-AP MLD and the AP MLD, that the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP, and whether the IDC service and the Wi-Fi service exist in the same link, a transmission operation of the Wi-Fi service and the IDC service; In the transmission operation, the non-AP MLD does not adjust QSRC parameters of the retransmission times of the service quality data frames of the PPDU of the Wi-Fi service; The STA attached to the non-AP MLD is a receiver or transmitter of the IDC service. In another aspect, an embodiment of the present disclosure further provides a non-AP MLD, including: One or more processors; the non-AP MLD is used for executing and realizing the service transmission method in the embodiment of the disclosure. The embodiment of the disclosure also provides a communication system, which comprises a non-AP MLD and an AP MLD, wherein Wi-Fi service and IDC service exist between the non-AP MLD and the AP MLD, and the transmission operation of the Wi-Fi service and the IDC service is determined according to whether the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of the current TXOP and whether the IDC service and the Wi-Fi service exist in the same link; In the transmission operation, the non-AP MLD does not adjust QSRC parameters of the retransmission times of the service quality data frames of the PPDU of the Wi-Fi service; The STA attached to the non-AP MLD is a receiver or transmitter of the IDC service. In the embodiment of the disclosure, wi-Fi services and IDC services exist between the non-AP MLD and the AP MLD, and according to the fact that the STA attached to the non-AP MLD is a TXOP holder or TXOP Responder of a current TXOP and whether the IDC services and the Wi-Fi services exist in the same link, the transmission operation of the Wi-Fi services and the IDC services is determined, wherein in the transmission operation, the non-AP MLD does not adjust QSRC parameters of a PPDU of the Wi-Fi services, increases the retry times of the PPDU after delay for the case of transmitting the Wi-Fi services in a delayed manner, improves the communication quality of the Wi-Fi services, and increases the retry times of the PPDU after delay for the case of transmitting the Wi-Fi services in an undelayed manner, and avoids the possible interference of the IDC services existing at the same time on the transmission of the Wi-Fi services. Additional aspects and advantages of embodiments of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure. Drawings In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the