CN116830720A

CN116830720A - Low-delay service transmission method, electronic equipment and storage medium

Info

Publication number: CN116830720A
Application number: CN202380009182.6A
Authority: CN
Inventors: 程亚军
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-29

Abstract

The embodiment of the disclosure relates to the technical field of mobile communication, and provides a low-delay service transmission method, electronic equipment and a storage medium. The low-delay service transmission method is applied to an Access Point (AP), and comprises the following steps: determining a first radio frame; the first wireless frame comprises first identification information, and the first identification information identifies the time slot of the AP allocation TXOP to first TDLS equipment; the time slot of the TXOP is used for the first TDLS device and the second TDLS device to transmit a first low-delay service through a TDLS link; the first TDLS device is a member of a first R-TWT schedule; and the second service identifier of the second low-delay service mapped between the AP and the member of the first R-TWT schedule comprises the first service identifier of the first low-delay service; and transmitting the first wireless frame. The embodiment of the disclosure can provide a transmission mode of low-delay service data.

Description

Low-delay service transmission method, electronic equipment and storage medium

Technical Field

The embodiment of the disclosure relates to the technical field of mobile communication, in particular to a low-delay service transmission method, electronic equipment and a storage medium.

Background

The Peer-to-Peer (P2P) communication mode does not need to pass through an access point for data transmission, so that delay caused by network congestion is avoided, and transmission efficiency can be further improved. To guarantee the transmission of low latency traffic data, it is also proposed in WLAN to limit the target wake-up time (Restricted Target Wake Time, R-TWT). In order to further reduce the transmission delay in the data transmission process, the transmission process needs to be optimized.

Disclosure of Invention

The embodiment of the disclosure provides a low-delay service transmission method, electronic equipment and a storage medium, so as to further reduce transmission delay in the low-delay service data transmission process.

In one aspect, an embodiment of the present disclosure provides a low latency service transmission method, applied to an access point device AP, where the method includes:

determining a first radio frame; the first wireless frame comprises first identification information, and the first identification information identifies the time slot of the AP allocation TXOP to first TDLS equipment;

the time slot of the TXOP is used for the first TDLS device and the second TDLS device to transmit a first low-delay service through a TDLS link; the first TDLS device is a member of a first R-TWT schedule;

And the second service identifier of the second low-delay service mapped between the AP and the member of the first R-TWT schedule comprises the first service identifier of the first low-delay service;

and transmitting the first wireless frame.

On the other hand, the embodiment of the disclosure further provides a low-delay service transmission method, which is applied to the first TDLS device, and the method includes:

receiving a first radio frame;

the first wireless frame comprises first identification information, and the first identification information identifies that an access point device (AP) allocates a time slot of a TXOP to a first TDLS device;

and the second service identifier of the second low-delay service mapped between the AP and the member of the first R-TWT schedule comprises the first service identifier of the first low-delay service.

On the other hand, the embodiment of the disclosure also provides an electronic device, which is an access point device AP, and the electronic device includes:

a determining module configured to determine a first radio frame; the first wireless frame comprises first identification information, and the first identification information identifies the time slot of the AP allocation TXOP to first TDLS equipment;

and the sending module is used for sending the first wireless frame.

On the other hand, the embodiment of the disclosure also provides an electronic device, which is a first TDLS device, and the electronic device includes:

a receiving module, configured to receive a first wireless frame;

Embodiments of the present disclosure also provide an electronic device including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing a method as described in one or more of the embodiments of the present disclosure when the program is executed by the processor.

Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method as described in one or more of the embodiments of the present disclosure.

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 of the embodiments of the present disclosure, the drawings that are needed in the description of the embodiments of the present disclosure will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 is an interaction schematic diagram of a low-delay service transmission method provided in an embodiment of the disclosure;

Fig. 2 is one of flowcharts of a low-latency service transmission method according to an embodiment of the present disclosure;

fig. 3 is a second flowchart of a low latency service transmission method according to an embodiment of the present disclosure;

fig. 4 is a third flowchart of a low-latency service transmission method according to an embodiment of the present disclosure;

fig. 5 is one of schematic structural diagrams of an electronic device according to an embodiment of the disclosure;

FIG. 6 is a second schematic structural diagram of an electronic device according to an embodiment of the disclosure;

fig. 7 is a third schematic structural diagram of an electronic device according to an embodiment of the disclosure;

fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description, when taken in conjunction with the accompanying drawings, refers to the same or similar elements in different drawings, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.

In the presently disclosed embodiments, the terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items. For example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The term "plurality" refers to two or more, and as such, may also be understood in the presently disclosed embodiments as "at least two".

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. Depending on the context, for example, the word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination".

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

The embodiment of the disclosure provides a low-delay service transmission method, electronic equipment and a storage medium, which are used for providing a transmission mode of low-delay service data.

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

As a first example, referring to fig. 1, an example of a low latency service transmission method provided by embodiments of the present disclosure will be described. As shown in fig. 1, an AP (Access Point device), STA1 (first TDLS (Tunneled Direct Link Setup, tunnel direct link setup) device), and STA2 (second TDLS device) are in the same basic service set (Basic Service Sets Basic Service Set, BSS); in this embodiment, all operations of STA1 and STA2 are peer devices, and STA2 may also operate peer to peer. In the embodiments of the present disclosure, STA1 and STA2 may be collectively referred to as STAs, where the STAs may also be non-AP MLD devices.

Alternatively, the R-TWT Scheduling (R-TWT Scheduling) may be pre-established by the planning device (e.g., AP, or Scheduling AP) and the planned device (e.g., STA, or Scheduled STA). Through broadcasting R-TWT scheduling, the STA negotiates with the AP and becomes a certain R-TWT scheduling member, the AP and the STA only transmit uplink and downlink corresponding low-delay services of the R-TWT scheduling identification in a corresponding R-TWT service stage, and other communication services are suspended or delayed in the stage.

In the embodiment of the disclosure, in the case that the second service identifier of the second low-latency service that satisfies the mapping between the AP and the member of the R-TWT schedule includes the first service identifier of the first low-latency service transmitted by the TDLS link, it is only required that one of the STA1 and the STA2 is a member of the R-TWT schedule (i.e., the STA1 or the STA2 is a member of the R-TWT schedule), so that the AP allocates the timeslot of the transmission opportunity TXOP to the STA1 or the STA2 for the STA1 and the STA2 to transmit the first low-latency service through the TDLS link. Therefore, the low-delay service transmission method of the embodiment of the disclosure is not limited to the method that TDLS site equipment is all R-TWT scheduling members, and the flexibility and the transmission efficiency of low-delay service transmission are further improved.

As shown in fig. 1, the interaction flow shown in fig. 1 includes a step of low-delay service transmission between TDLS devices, and a negotiation step of TDLS link service identifier to connection mapping before the low-delay service transmission; specifically, the processing steps shown in fig. 1 may include:

step 1: STA1 and STA2 successfully establish a TDLS link through TDLS discovery, establishment, confirmation, and other procedures. After the TDLS link is established, STA1 may serve as TDLS STA1 (i.e., a TDLS initiator or a responder); correspondingly, STA2 may act as TDLS STA2 (i.e., TDLS responder or initiator).

Step 2-1: the AP receives a traffic identification To connection mapping request (TID-To-Link Mapping Request) frame transmitted by STA 1. Wherein, the TID-To-Link Mapping Request frame carries a service identifier To connection Mapping (TID-To-Link Mapping) element; the TID-To-Link Mapping element may include a TDLS Link traffic identification map (TDLS TID Mapping) identification bit for identifying: whether the parameter information carried by the TID-To-Link Mapping element is used for Mapping the service identifier on the TDLS Link between the TDLS devices.

By way of example, the TID-To-Link Mapping element is formatted as shown in Table 1 below:

table 1:

as an example, when the TDLS TID Mapping flag bit is set To 1, the parameter information carried by the TID-To-Link Mapping element may be identified for service identifier Mapping on the TDLS Link between TDLS devices; when the TDLS TID Mapping identification bit is set To 0, it may be identified that the parameter information carried by the TID-To-Link Mapping element is not used for service identification Mapping on the TDLS Link between TDLS devices.

Optionally, the TID-To-Link Mapping element includes a Direction identification bit; and when the Direction identification bit is set To a first parameter value, indicating that the service identification-To-Link Mapping element comprises service identification-To-connection Mapping relation is TDLS Link peer-To-peer transmission. For example, the first parameter value may be 3.

As an example, in the case that the parameter information carried by the TID-To-Link Mapping element is used for Mapping service identifiers on a TDLS Link between TDLS devices (i.e., the TDLS TID Mapping identifier bit is set To 1), and the Direction identifier bit is set To 3, it may be identified that the Mapping relationship from the service identifier included in the TID-To-Link Mapping element To the connection is TDLS Link peer-To-peer transmission, i.e., the service transmission mapped on the TDLS Link is bidirectional peer-To-peer of the TDLS device.

Step 2-2: the AP forwards TID-To-Link Mapping Request frames To STA 2. It will be appreciated that in the presently disclosed embodiments, the TID-To-Link Mapping Request frame is forwarded by the AP To STA 2.

Step 2-3: the AP receives a service identifier-To-connection mapping response (TID-To-Link Mapping Response) frame sent by the STA 2; the TID-To-Link Mapping Response frame carries a TID-To-Link Mapping element.

Step 2-4: the AP forwards TID-To-Link Mapping Response frames To STA 1. It will be appreciated that in the presently disclosed embodiments, the TID-To-Link Mapping Response frame is forwarded by the AP To STA 1.

Optionally, in the embodiment of the present disclosure, a parameter of a TDLS TID Mapping identifier bit in a TID-To-Link Mapping Request frame is the same as a parameter of a TDLS TID Mapping identifier bit in a TID-To-Link Mapping Response frame; and/or the parameters of the Direction identification bit in the TID-To-Link Mapping Request frame are the same as the parameters of the Direction identification bit in the TID-To-Link Mapping Response frame; in this way, STA2 may be identified as supporting peer-to-peer transmission of low latency traffic over the TDLS link.

Step 3-1: upon reaching a target wake time for a certain R-TWT schedule that STA1 joins, the AP sends a trigger frame (e.g., base trigger frame Basic Trigger frame) to STA1 to wake STA1 for data exchange with STA1 within the R-TWT SP.

Step 3-2: and according to the low-delay communication service identifier mapped on the link, the AP exchanges data with the STA 1. In the process of data exchange, the exchanged data may be independent data frames or may be a plurality of continuous data frames (i.e. data blocks).

Step 4: the AP determines whether the service mapped in the service identity on the TDLS link contains one or more low latency services in the service identity in the R-TWT schedule, i.e. whether the service type in the first service identity of the first low latency services transmitted by the TDLS link contains one or more low latency services in the second service identity of the second low latency services mapped between the AP and members of the R-TWT schedule.

For example, the second low-latency traffic mapped between the AP and the R-TWT scheduled member (the R-TWT scheduled member is STA 1) is traffic 1, traffic 3, traffic 5, and traffic 6, i.e., in the corresponding R-TWT SP, the transmission between the AP and STA1 is identified as the second low-latency traffic, and other traffic is suspended or deferred in the SP; correspondingly, the second service identifier comprises an identifier 1, an identifier 3, an identifier 5 and an identifier 6 which are respectively corresponding to the service. When the first low-latency service mapped by the TDLS link between the TDLS devices includes one or more service types of service 1, service 3, service 5 and service 6 (for example, the first service class includes service 0, service 1, service 4 and service 6, i.e. the first service identifier includes identifier 0, identifier 1, identifier 4 and identifier 6 corresponding to the above-mentioned service respectively). In this example, the low latency traffic of the second traffic identification (i.e., identification 1, identification 3, identification 5, and identification 6) includes the first traffic identification (identification 1 and identification 6).

Step 5-1: and when the AP determines that the service identifier in the R-TWT scheduling comprises the service identifier on the TDLS link, the AP sends an MU-RTS TXS Trigger frame (a first radio frame) to the STA1, and allocates a time slot of a transmission opportunity sharing (TXOP) for the STA1 in the R-TWT SP in a mode of the transmission opportunity sharing (TXOP). The time slot of the TXOP is used for STA1 and STA2 to transmit the first low latency service through the TDLS link.

In one embodiment, in the event that the service identification in the R-TWT schedule does not include the service identification on the TDLS link, no MU-RTS TXS Trigger frame is sent.

Step 5-2: after receiving the MU-RTS TXS Trigger frame, STA1 sends a CTS frame (Clear To send) To the AP, that is, responds To the MU-RTS TXS Trigger frame sent by the AP.

Step 6: in the allocated time slot of the TXOP, STA1 and STA2 perform point-to-point (P2P) transmission through the TDLS link, that is, STA1 transmits data to STA 2.

In the data transmission process, after receiving a data frame sent by a sender (i.e., STA 1), a receiver (i.e., STA 2) may feed back an Acknowledgement (ACK) frame to the sender; when the receiving side receives a plurality of consecutive data frames transmitted from the transmitting side, a Block Ack (BA) frame may be fed back to the transmitting side.

As described above, the STA1 and STA2 devices are peer devices, for example, when STA1 is an initiator, STA2 is a responder; when STA2 is the initiator, STA1 is the responder. The above embodiment is described by taking STA1 to transmit data to STA2 as an example (STA 1 is an initiator, STA2 is a responder), and the method is equally applicable to STA2 to transmit data to STA1 (STA 2 is an initiator, STA1 is a responder). Specifically, taking the main execution steps as an example: in step 3-2, the AP may also exchange data with STA 2. Correspondingly, in step 4, the AP may also send an MU-RTS TXS Trigger frame to the STA2 when determining that the service identifier in the R-TWT schedule includes the service identifier on the TDLS link; in step 5-2, STA2 may send a CTS frame to the AP; in step 6, STA2 and STA1 perform Peer-to-Peer (P2P) transmission, i.e., STA2 transmits data to STA 1.

In the embodiment of the disclosure, an AP identifies, through first identification information, a time slot of an AP allocation TXOP to a first TDLS device; for R-TWT scheduling which can be applied between STA devices, the first TDLS device and the second TDLS device can transmit low-delay service data in a time slot of a TXOP (traffic information protocol) through a TDLS link established between the first TDLS device and the second TDLS device under the condition that no AP participates, so that transmission delay in the transmission process of the low-delay service data is further reduced, and the transmission efficiency of the low-delay service is improved.

Referring to fig. 2, an embodiment of the present disclosure provides a low latency service transmission method, which may be optionally applied to an Access Point (AP) device; optionally, in the embodiments of the disclosure, the AP is, for example, a device with a wireless-to-wired Bridging (Bridging) function, and the AP is responsible for extending the service provided by the wired network to the wireless network; the station apparatus, for example, an electronic apparatus having a wireless network access function, provides a Frame Delivery service to allow information to be delivered. Alternatively, in the embodiments of the present disclosure, the AP and STA may be devices supporting multiple connections, for example, may be denoted as AP MLD and non-AP MLD, respectively; the AP MLD may represent an access point supporting a multi-connection communication function, and the non-AP MLD may represent a station supporting the multi-connection communication function.

The method may comprise the steps of:

step 201, determining a first wireless frame; the first wireless frame comprises first identification information, and the first identification information identifies the time slot of the AP allocation TXOP to first TDLS equipment;

step 202, transmitting the first radio frame.

TWT is a technology for power saving aimed at further reducing Wi-Fi network power consumption. Specifically, the TWT technique determines the time and frequency of STA sleep and wake by having STA and AP negotiate service times; the STA keeps active state and communicates during the service time, so that it can sleep at a time other than the service time to achieve the purpose of energy saving. In addition, the TWT technique may also enable the AP to provide higher quality services to multiple STAs, minimize contention or overlap, and improve spectral efficiency while reducing Wi-Fi network power consumption.

In low latency transmission scenarios, more real-time data traffic for applications has stringent delay requirements, e.g., average or maximum delays on the order of several milliseconds to tens of milliseconds, and applications require very little jitter and greater reliability for real-time data traffic. In order to further ensure the communication of low latency services, it is proposed to limit the target wake-up time on the basis of the TWT technique. The R-TWT mechanism allows the AP to use enhanced media access protection mechanisms and resource reservation mechanisms to provide more predictable delays to distinguish delay sensitive traffic from other types of traffic, such that the AP reduces worst-case delays and/or reduces jitter, providing more reliable services.

In embodiments of the present disclosure, a planning device (e.g., an AP, or Scheduling AP) and a planned device (e.g., a STA, or Scheduled STA) may pre-establish an R-TWT schedule. Through broadcasting R-TWT scheduling, the STA negotiates with the AP and becomes a certain R-TWT scheduling member, the AP and the STA only transmit uplink and downlink corresponding low-delay services of the R-TWT scheduling identification in a corresponding R-TWT service stage, and other communication services are suspended or delayed in the stage. In particular, the R-TWT is used to service low latency traffic, such as traffic with an average delay of less than 10 milliseconds. In the SP scheduled by the R-TWT, only the traffic identified as low latency traffic is communicated, and other traffic is suspended or deferred during this phase, thereby ensuring the transmission of low latency traffic.

The AP determines a first wireless frame; the first wireless frame comprises first identification information, and the first identification information identifies the time slot of the AP allocation TXOP to first TDLS equipment; the time slot of the TXOP is used for the first TDLS device and the second TDLS device to transmit a first low-delay service through a TDLS link; the first TDLS device is a member of a first R-TWT schedule; and the second service identifier of the second low-delay service mapped between the AP and the member of the first R-TWT schedule comprises the first service identifier of the first low-delay service.

Further, transmitting a first radio frame; for example, the AP may send the first radio frame within a SP of a first R-TWT schedule.

Optionally, in an embodiment of the present disclosure, the first radio frame may include a multi-user request to send transmission opportunity sharing Trigger frame MU-RTS TXS Trigger frame.

The first TDLS device and the second TDLS device may, for example, be two STAs, and the TDLS technology makes two STAs in the same basic service set directly skip the AP to transmit data after establishing a TDLS connection (TDLS Link, i.e., TDLS Link/TDLS channel), so that the two STAs are not constrained by the AP and directly transmit data by using the fastest rate standard supported by the two STAs. The direct transmission can be carried out on the original link or can be switched to a new expansion channel, so that the data transmission delay caused by network congestion can be avoided, and the method has important significance for the transmission of low-delay service.

In an embodiment of the present disclosure, the first TDLS device is a member of a first R-TWT schedule. That is, when the second service identifier includes the first service identifier, only one of the first TDLS device and the second TDLS device needs to be a member of the first R-TWT schedule, the AP may allocate a time slot of the TXOP to the first TDLS device, so that the first TDLS device and the second TDLS device may transmit the first low latency service through the TDLS link. Therefore, the embodiment of the disclosure is not limited to the TDLS site equipment being R-TWT scheduling members, and further improves the flexibility and transmission efficiency of low-delay service transmission.

The embodiment of the disclosure provides a low-delay service transmission method applied to an access point device (AP), which can comprise the following steps:

and transmitting the first wireless frame.

Wherein prior to said determining the first radio frame, the method comprises:

receiving a second wireless frame sent by the first TDLS equipment; the second wireless frame comprises a first TID-To-Link Mapping element;

the first TID-To-Link Mapping element comprises a TDLS TID Mapping identification bit, and the TDLS TID Mapping identification bit identifies: whether the parameter information carried by the TID-To-Link Mapping element is used for Mapping service identifiers on a TDLS Link between TDLS devices or not;

And sending the second wireless frame to the second TDLS equipment.

Optionally, in an embodiment of the present disclosure, before determining the first radio frame, a negotiation step of TDLS link service identification to connection mapping may be further included.

As an example, the negotiating step may include the steps of:

the AP may receive a second radio frame sent by the first TDLS device and forward the second radio frame to the second TDLS device. It is appreciated that in embodiments of the present disclosure, the second radio frame is forwarded by the AP to a second TDLS device.

The second radio frame may carry a first TID-To-Link Mapping element, where the first TID-To-Link Mapping element may include a TDLS TID Mapping identifier bit, where the TDLS TID Mapping identifier bit is used To identify: and whether the parameter information carried by the TID-To-Link Mapping element is used for Mapping the service identifier on the TDLS Link between the TDLS devices or not.

Optionally, the first TID-To-Link Mapping element is a service identifier-To-connection Mapping (TID-To-Link Mapping) element; the TDLS TID Mapping identification bit is a TDLS link service identification Mapping identification bit (TDLS TID Mapping).

As an example, the format of the first TID-To-Link Mapping element is shown in table 1 above.

Alternatively, in an embodiment of the present disclosure, the second radio frame may be a service identification To connection mapping request (TID-To-Link Mapping Request) frame.

Optionally, in an embodiment of the present disclosure, the first TID-To-Link Mapping element includes a Direction identification bit;

and setting the Direction identification bit as a first parameter value, and indicating that the Mapping relationship from the service identification included in the first TID-To-Link Mapping element To the connection is TDLS Link peer-To-peer transmission.

Alternatively, the first parameter value may be 3.

As an example, in the case that the parameter information carried by the TID-To-Link Mapping element is used for Mapping service identifiers on a TDLS Link between TDLS devices (i.e., the TDLS TID Mapping identifier bit is set To 1), and the Direction identifier bit is set To 3, it may be identified that the Mapping relationship from the service identifier included in the first TID-To-Link Mapping element To the connection is TDLS Link peer-To-peer transmission, i.e., the service transmission mapped on the TDLS Link is TDLS device bidirectional peer-To-peer.

and transmitting the first wireless frame.

Wherein prior to said determining the first radio frame, the method comprises:

And sending the second wireless frame to the second TDLS equipment.

Wherein after sending the second radio frame to the second TDLS device, the method further comprises:

receiving a third wireless frame sent by the second TDLS equipment; the third wireless frame comprises a second TID-To-Link Mapping element;

and sending the third wireless frame to the first TDLS device.

Optionally, in an embodiment of the present disclosure, before determining the first radio frame, a negotiation step of TDLS link service identification to connection mapping may be included.

As an example, the negotiating step may include the steps of:

and after the second wireless frame is sent to the second TDLS equipment, receiving a third wireless frame sent by the second TDLS equipment, and forwarding the third wireless frame to the first TDLS equipment. It is appreciated that in embodiments of the present disclosure, the third radio frame is forwarded by the AP to the first TDLS device.

Specifically, the third radio frame carries a second TID-To-Link Mapping element; the second TID-To-Link Mapping element is a service identification To connection Mapping (TID-To-Link Mapping) element.

Alternatively, in an embodiment of the present disclosure, the third radio frame may be a traffic identification To connection mapping response (TID-To-Link Mapping Response) frame.

Optionally, in an embodiment of the present disclosure, a parameter of a TDLS TID Mapping identifier bit of the second TID-To-Link Mapping element is the same as a parameter of a TDLS TID Mapping identifier bit of the first TID-To-Link Mapping element;

and/or

The parameters of the Direction identification bit of the second TID-To-Link Mapping element are the same as those of the Direction identification bit of the first TID-To-Link Mapping element,

identifying that the second TDLS device supports peer-to-peer transmission of low latency traffic over the TDLS link.

That is, the parameter of the TDLS TID Mapping identification bit in the second radio frame is the same as the parameter of the TDLS TID Mapping identification bit in the third radio frame; and/or parameters of the Direction identification bit in the second radio frame are the same as parameters of the Direction identification bit in the third radio frame; in this way, it may be identified that the second TDLS device supports peer-to-peer transmission of low latency traffic over the TDLS link.

It should be noted that, as described above, the first TDLS device and the second TDLS device are peer devices, for example, when the first TDLS device is an initiator, the second TDLS device is a responder; when the second TDLS device is the initiator, the first TDLS device is the responder. The above embodiments are described by taking the example that the first TDLS device sends data to the second TDLS device (the first TDLS device is an initiator, the second TDLS device is a responder), and the method is equally applicable to the second TDLS device sending data to the first TDLS device (the second TDLS device is an initiator, and the first TDLS device is a responder).

And transmitting the first wireless frame.

Optionally, before the determining the first radio frame, the method includes:

and sending the second wireless frame to the second TDLS equipment.

Optionally, the first TID-To-Link Mapping element includes a Direction identification bit;

Optionally, after sending the second radio frame to the second TDLS device, the method further includes:

and sending the third wireless frame to the first TDLS device.

Optionally, the parameter of the TDLS TID Mapping identification bit of the second TID-To-Link Mapping element is the same as the parameter of the TDLS TID Mapping identification bit of the first TID-To-Link Mapping element;

and/or

Optionally, the second radio frame includes a TID-To-Link Mapping request frame, and the third radio frame includes a TID-To-Link Mapping response frame.

Optionally, the first radio frame includes a MU-RTS TXS Trigger frame.

Referring to fig. 3, an embodiment of the present disclosure provides a low latency service transmission method, optionally, the method is applied to a first TDLS device, and the method includes:

step 301: receiving a first radio frame;

and the first service identifier of the first low-delay service includes a second service identifier of a second low-delay service mapped between the AP and a member of the first R-TWT schedule.

The embodiment of the disclosure provides a low-delay service transmission method, optionally, the method is applied to a first TDLS device, and the method comprises the following steps:

receiving a first radio frame;

Wherein prior to said receiving the first radio frame, the method comprises:

determining a second radio frame; the second radio frame comprises a TID-To-Link Mapping element from service identification To first connection Mapping;

and sending the second wireless frame.

As an example, the negotiating step may include the steps of:

the first TDLS device determines and transmits a second radio frame. The AP may receive a second radio frame sent by the first TDLS device and forward the second radio frame to the second TDLS device. It is appreciated that in embodiments of the present disclosure, the second radio frame is forwarded by the AP to a second TDLS device.

Alternatively, the first parameter value may be 3.

receiving a first radio frame;

Wherein prior to said receiving the first radio frame, the method comprises:

and sending the second wireless frame.

Wherein after transmitting the second radio frame, the method further comprises:

receiving a third radio frame; the third wireless frame is forwarded from the second TDLS device by the AP, and the third wireless frame includes a second TID-To-Link Mapping element.

And/or

receiving a first radio frame;

Wherein after the receiving the first radio frame, the method comprises:

and transmitting low-delay service data with the second TDLS equipment through the TDLS link in the time slot of the TXOP.

As an example, in an R-TWT SP, an AP allocates a transmission opportunity slot to a member station (e.g., a first TDLS device) scheduled by the R-TWT, and after replying a CTS frame to the AP, the station that obtains a transmission opportunity may send low latency communication traffic to a corresponding TDLS station (e.g., a second TDLS device) over a TDLS link in the obtained transmission opportunity slot.

The embodiment of the disclosure also provides a low-delay service transmission method applied to the first TDLS device, which comprises the following steps:

receiving a first radio frame;

Optionally, before the receiving the first radio frame, the method includes:

And sending the second wireless frame.

Optionally, after the second radio frame is sent, the method further includes:

and/or

Optionally, after the receiving the first radio frame, the method includes:

In the embodiment of the disclosure, an AP identifies, through first identification information, a time slot of an AP allocation TXOP to a first TDLS device; for R-TWT scheduling which can be applied between STA devices, the first TDLS device and the second TDLS device can transmit low-delay service data in a time slot of a TXOP (traffic information protocol) through a TDLS link established between the first TDLS device and the second TDLS device under the condition that no AP participates, so that transmission delay in the transmission process of the low-delay service data is further reduced, and the transmission efficiency of the low-delay service is improved. The embodiment of the disclosure provides a transmission mode of low-delay service data.

Referring to fig. 4, an embodiment of the present disclosure further provides a low latency service transmission method, which is applied to a second TDLS device, where the method includes:

step 401: receiving a first radio frame;

The embodiment of the disclosure also provides a low-delay service transmission method applied to the second TDLS device, the method comprising:

receiving a first radio frame;

Wherein prior to said receiving the first radio frame, the method comprises:

receiving a second radio frame; the second wireless frame is forwarded from the first TDLS device by the AP, and the second wireless frame comprises a TID-To-Link Mapping element from service identification To first connection Mapping;

the first TID-To-Link Mapping element comprises a TDLS TID Mapping identification bit, and the TDLS TID Mapping identification bit identifies: and whether the parameter information carried by the TID-To-Link Mapping element is used for Mapping the service identifier on the TDLS Link between the TDLS devices or not.

As an example, the negotiating step may include the steps of:

a second TDLS receives a second radio frame, wherein the second radio frame is forwarded by the AP to a second TDLS device.

Alternatively, the first parameter value may be 3.

receiving a first radio frame;

Wherein prior to said receiving the first radio frame, the method comprises:

Wherein after receiving the second radio frame, the method further comprises:

determining a third radio frame; the third radio frame comprises a second TID-To-Link Mapping element;

and transmitting the third wireless frame.

and/or

The embodiment of the disclosure provides a low-delay service transmission method, optionally, the method is applied to a second TDLS device, and the method includes:

Receiving a first radio frame;

Wherein after the receiving the first radio frame, the method comprises:

receiving a first radio frame;

Optionally, before the receiving the first radio frame, the method includes:

Optionally, the TID-To-Link Mapping element includes a Direction identification bit;

Optionally, after the second radio frame is sent, the method further includes:

and/or

And the parameters of the Direction identification bit of the second TID-To-Link Mapping element are the same as the parameters of the Direction identification bit of the first TID-To-Link Mapping element, and the second TDLS device is identified To support peer-To-peer transmission of low-delay service in the TDLS Link.

Optionally, after the receiving the first radio frame, the method includes:

and transmitting low-delay service data with the first TDLS equipment through the TDLS link in the time slot of the TXOP.

Referring to fig. 5, based on the same principle as the method provided by the embodiment of the present disclosure, the embodiment of the present disclosure further provides an electronic device, which is an access point device AP, and includes:

a determining module 501, configured to determine a first wireless frame; the first wireless frame comprises first identification information, and the first identification information identifies the time slot of the AP allocation TXOP to first TDLS equipment;

a transmitting module 502, configured to transmit a first wireless frame.

The embodiment of the disclosure also provides a low-delay service transmission device, which is applied to the access point equipment AP, and the device comprises:

a radio frame determining module configured to determine a first radio frame; the first wireless frame comprises first identification information, and the first identification information identifies the time slot of the AP allocation TXOP to first TDLS equipment;

and the wireless frame transmitting module is used for transmitting the first wireless frame.

The apparatus further includes other modules of the electronic device in the foregoing embodiments, which are not described herein.

Referring to fig. 6, based on the same principle as the method provided by the embodiments of the present disclosure, the embodiments of the present disclosure further provide an electronic device, which is a first TDLS device, including:

A receiving module 601, configured to receive a first radio frame;

The embodiment of the disclosure also provides a low-delay service transmission device, which is applied to the first TDLS equipment, and comprises:

a wireless frame receiving module for receiving a first wireless frame;

Referring to fig. 7, based on the same principle as the method provided by the embodiment of the present disclosure, the embodiment of the present disclosure further provides an electronic device, which is a second TDLS device, including:

a receiving module 701, configured to receive a first wireless frame;

The embodiment of the disclosure also provides a low-delay service transmission device applied to the second TDLS equipment, which comprises:

A wireless frame receiving module for receiving a first wireless frame;

In an alternative embodiment, the embodiment of the present disclosure further provides an electronic device, as shown in fig. 8, where the electronic device 700 shown in fig. 8 may be a server, including: a processor 701 and a memory 703. The processor 701 is coupled to a memory 703, such as via a bus 702. Optionally, the electronic device 700 may also include a transceiver 704. It should be noted that, in practical applications, the transceiver 704 is not limited to one, and the structure of the electronic device 700 is not limited to the embodiments of the present disclosure.

The processor 701 may be a CPU (Central Processing Unit ), general purpose processor, DSP (Digital Signal Processor, data signal processor), ASIC (Application Specific Integrated Circuit ), FPGA (Field Programmable Gate Array, field programmable gate array) or other programmable logic device, transistor logic device, hardware components, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor 701 may also be a combination that performs computing functions, such as including one or more microprocessors, a combination of a DSP and a microprocessor, or the like.

Bus 702 may include a path to transfer information between the components. Bus 702 may be a PCI (Peripheral Component Interconnect, peripheral component interconnect Standard) bus or an EISA (Extended Industry Standard Architecture ) bus, or the like. Bus 702 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 8, but not only one bus or one type of bus.

The Memory 703 may be, but is not limited to, ROM (Read Only Memory) or other type of static storage device that can store static information and instructions, RAM (Random Access Memory ) or other type of dynamic storage device that can store information and instructions, EEPROM (Electrically Erasable Programmable Read Only Memory ), CD-ROM (Compact Disc Read Only Memory, compact disc Read Only Memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

The memory 703 is used for storing application program codes for executing the present disclosure and is controlled by the processor 701 for execution. The processor 701 is configured to execute application code stored in the memory 703 to implement what is shown in the foregoing method embodiments.

Among them, electronic devices include, but are not limited to: mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and the like, and stationary terminals such as digital TVs, desktop computers, and the like. The electronic device shown in fig. 8 is merely an example and should not be construed to limit the functionality and scope of use of the disclosed embodiments.

The server provided by the disclosure may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDNs, basic cloud computing services such as big data and artificial intelligence platforms. The terminal may be, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, a smart speaker, a smart watch, etc. The terminal and the server may be directly or indirectly connected through wired or wireless communication, and the disclosure is not limited herein.

The disclosed embodiments provide a computer readable storage medium having a computer program stored thereon, which when run on a computer, causes the computer to perform the corresponding method embodiments described above.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.

It should be noted that the computer readable medium described in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.

The computer readable medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device.

The computer-readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to perform the methods shown in the above-described embodiments.

According to one aspect of the present disclosure, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions are read from the computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the methods provided in the various alternative implementations described above.

Computer program code for carrying out operations of the present disclosure may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The modules described in the embodiments of the present disclosure may be implemented in software or hardware. The name of a module is not limited to the module itself in some cases, and for example, an a module may also be described as "an a module for performing a B operation".

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this disclosure is not limited to the specific combinations of features described above, but also covers other embodiments which may be formed by any combination of features described above or equivalents thereof without departing from the spirit of the disclosure. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).

Claims

1. A low-latency service transmission method applied to an access point device AP, the method comprising:

And transmitting the first wireless frame.

2. The method for low latency traffic transmission according to claim 1, wherein prior to the determining the first radio frame, the method comprises:

and sending the second wireless frame to the second TDLS equipment.

3. The low-latency traffic transmission method according To claim 2, wherein the first TID-To-Link Mapping element comprises a Direction identification bit;

4. A low latency traffic transmission method according to claim 2 or 3, characterized in that after transmitting the second radio frame to the second TDLS device, the method further comprises:

and sending the third wireless frame to the first TDLS device.

5. The method for low latency traffic transmission according to claim 4, wherein,

the parameters of the TDLS TID Mapping identification bit of the second TID-To-Link Mapping element are the same as those of the TDLS TID Mapping identification bit of the first TID-To-Link Mapping element;

and/or the number of the groups of groups,

6. The method of low latency traffic transmission according To claim 4, wherein the second radio frame comprises a TID-To-Link Mapping request frame and the third radio frame comprises a TID-To-Link Mapping response frame.

7. The low latency traffic transmission method according to claim 1, wherein the first radio frame comprises a MU-RTS TXS Trigger frame.

8. A low latency traffic transmission method applied to a first TDLS device, the method comprising:

Receiving a first radio frame;

9. The method of low latency traffic transmission according to claim 8, wherein prior to the receiving the first radio frame, the method comprises:

and sending the second wireless frame.

10. The low-latency traffic transmission method according To claim 9, wherein the first TID-To-Link Mapping element comprises a Direction identification bit;

11. The low latency traffic transmission method according to claim 9 or 10, wherein after transmitting the second radio frame, the method further comprises:

12. The method for low latency traffic transmission according to claim 11,

and/or the number of the groups of groups,

13. The low latency traffic transmission method according to claim 8, wherein after the receiving the first radio frame, the method comprises:

14. An electronic device, the electronic device being an access point device AP, the electronic device comprising:

and the sending module is used for sending the first wireless frame.

15. An electronic device, the electronic device being a first TDLS device, the electronic device comprising:

a receiving module, configured to receive a first wireless frame;

16. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of claims 1 to 7 or the method of any one of claims 8 to 13 when the program is executed.

17. A computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the method of any of claims 1 to 7 or implements the method of any of claims 8 to 13.