WO2020156592A1 - 数据发送方法、数据发送设备、多链路系统和存储介质 - Google Patents

数据发送方法、数据发送设备、多链路系统和存储介质 Download PDF

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Publication number
WO2020156592A1
WO2020156592A1 PCT/CN2020/081780 CN2020081780W WO2020156592A1 WO 2020156592 A1 WO2020156592 A1 WO 2020156592A1 CN 2020081780 W CN2020081780 W CN 2020081780W WO 2020156592 A1 WO2020156592 A1 WO 2020156592A1
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Prior art keywords
data
links
link
sending
multiple links
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PCT/CN2020/081780
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English (en)
French (fr)
Inventor
赵育仁
徐彦超
余庆华
王泷
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展讯通信(上海)有限公司
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Priority to US17/427,891 priority Critical patent/US20220124798A1/en
Priority to EP20747698.7A priority patent/EP3941114A4/en
Publication of WO2020156592A1 publication Critical patent/WO2020156592A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/08Load balancing or load distribution
    • H04W28/086Load balancing or load distribution among access entities
    • H04W28/0861Load balancing or load distribution among access entities between base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/22Alternate routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/24Multipath
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/12Avoiding congestion; Recovering from congestion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/50Queue scheduling
    • H04L47/62Queue scheduling characterised by scheduling criteria
    • H04L47/6215Individual queue per QOS, rate or priority
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/50Queue scheduling
    • H04L47/62Queue scheduling characterised by scheduling criteria
    • H04L47/625Queue scheduling characterised by scheduling criteria for service slots or service orders
    • H04L47/6275Queue scheduling characterised by scheduling criteria for service slots or service orders based on priority
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a data transmission method, data transmission device, multi-link system and storage medium.
  • WiFi Wireless Fidelity, wireless fidelity
  • MAC Media Access Control
  • PHY Port Physical Layer, port physical layer
  • RF Radio Frequency, radio frequency
  • WLAN Wireless Local Area Network, wireless local area network
  • IEEE802.11 EHT and RTA TIG multi-band (2.4GHz, 5GHz and 60GHz) or multi-link (hereinafter also referred to as channel or ch )Characteristics. Therefore, in practice, WLAN products (for example, products that support multiple frequency bands and multiple parallel features) support multiple links have become popular.
  • the current multi-band and multi-parallel feature products are only multiple WLAN devices working in different frequency bands.
  • the links of these multiple frequency bands the MAC and PHY layers are independent.
  • the FST (Fast Session Transfer, fast session transfer) method is adopted.
  • the FST method is an example of multi-link.
  • FST characteristics are defined, and multiple links in multiple frequency bands of 60 GHz and other (2.4 or 5 GHz) are also addressed.
  • the FST concept adds a connection (Common Upper MAC) on top of two MACs (for example, MAC1, MAC2), so that the connection can be Centralized management of traffic (traffic) to achieve seamless transfer between different frequency bands or different links.
  • the universal upper MAC is a combination of the upper MAC1 of MAC1 and the upper MAC2 of MAC2.
  • Methods such as FST are trying to utilize the current single-link design of the WLAN system and seamlessly upgrade to a multi-link system with less modification. This is a smooth migration step with less design workload and development risk.
  • the present disclosure proposes a data transmission method, data transmission device, multi-link system and storage medium.
  • a data sending method applied to a first device wherein there are multiple links between the first device and the second device, and the method includes: For the data sent by the second device, the available links are respectively determined in the multiple links; and the data is sent according to the result of the transmission right competition of the multiple links.
  • the method further includes: adding the data to the available links for the data respectively. Sending queue; in the method, if the data has been sent, then: in the case that the data sent in one of the multiple links exists in the sending queue of the other link, from the The data is deleted from the sending queue of other links.
  • sending the data according to the result of the transmission right competition of the multiple links includes: obtaining the transmission right on one of the multiple links Next, send the data in the one link, and delete the data in the sending queues in the other links of the multiple links.
  • the method before transmitting the data according to the result of the transmission right competition of the multiple links, the method further includes: applying time slots in the multiple links Offset technology.
  • applying the time slot offset technology to the multiple links includes: determining, according to the time slot offset of the multiple links, to obtain the data transmission Send right link.
  • the data includes access category data, namely AC data
  • the AC data includes at least one of AC_VO data, AC_VI data, AC_BE data, and AC_BK data.
  • sending the data according to the result of the transmission right competition of the multiple links includes: sending the data in more than two links among the multiple links When different types of AC data obtain the transmission right at the same time, the AC data is sent in the two or more links respectively; and/or, in the two or more links in the multiple links In the case that the same AC data of the same category obtains the transmission right at the same time, the AC data is transmitted in one of the two or more links; and/or, in two of the multiple links In the case where different AC data of the same type in the above links obtain the transmission right at the same time, the AC data is respectively transmitted in the two or more links.
  • the data is sent according to the result of the transmission right competition of the multiple links, the data is included in the same link in more than two of the multiple links.
  • the AC data of the same category obtains the transmission right at the same time, the AC data is transmitted in one of the two or more links; then: in the two or more links in the multiple links.
  • arbitration is used to transmit the AC data in one of the two or more links.
  • the data includes access category data, namely AC data
  • the AC data includes at least one of AC_VO data, AC_VI data, AC_BE data, and AC_BK data.
  • sending the data according to the result of the transmission right competition of the multiple links includes: sending the data in more than two links among the multiple links When different types of AC data obtain the transmission right at the same time, the AC data is transmitted in the two or more links respectively, and the transmission queues in the other links of the multiple links are deleted.
  • AC data AC data; and/or, in the case where the same AC data of the same category in two or more of the multiple links simultaneously obtains the transmission right, in one of the two or more links Send the AC data in the link, and delete the AC data in the sending queues in the other links of the multiple links; and/or, in two or more of the multiple links
  • the AC data is transmitted in the two or more links respectively, and the transmission queues existing in the other links of the multiple links are deleted The AC data in.
  • the data is included in the same link in more than two of the multiple links.
  • the same AC data of the same category obtains the transmission right at the same time
  • the AC data is transmitted in one of the two or more links, and the AC data existing in the other links of the multiple links is deleted.
  • Send the AC data in the queue then: in the case that the same AC data of the same category in two or more links in the multiple links obtains the transmission right at the same time, arbitration is used to transfer the data between the two or more
  • the AC data is sent in one of the links, and the AC data in the sending queues in the other links of the multiple links is deleted.
  • using arbitration to send the AC data in one of the two or more links includes: determining to send the AC according to the priority of the link Data link; and/or, determine the link to send the AC data according to the arbitration result within a predetermined arbitration time; and/or determine to send the AC data according to the link load status of each link that has won the transmission right Link.
  • the data in the case that the data fails to be sent in the determined link, the data is sent again in the determined link; and/or, the The first device is an access point AP, and the second device is a station STA, or the first device is a station STA, and the second device is an access point AP.
  • a data sending device wherein there are multiple links between the data sending device and a second device, and the data sending device includes: a determining module configured to determine The data sent by the second device determines the available links in the multiple links respectively; and the sending module is configured to send the data according to the result of the transmission right competition of the multiple links.
  • the data sending device further includes: an adding module for adding the data to the sending queue of the available link for the data; the sending module If the data has been sent, then: if the data to be sent in one of the multiple links is in the sending queue of the other link, from the sending queue of the other link Delete the data.
  • the sending module is configured to: in the case that one of the multiple links obtains the sending right, send the one link Data, and delete the data in the sending queues in other links of the plurality of links.
  • an application module configured to apply the time slot offset technology in the multiple links.
  • the application module is configured to determine a link that obtains the sending right to send the data according to the time slot offset of the multiple links.
  • the data includes access category data, namely AC data
  • the AC data includes at least one of AC_VO data, AC_VI data, AC_BE data, and AC_BK data.
  • the sending module is used for: a situation where AC data of different types in two or more of the multiple links obtains the sending right at the same time Next, send the AC data in the two or more links respectively; and/or, the same AC data of the same category in the two or more links in the plurality of links obtains the sending right at the same time In case, the AC data is sent in one of the two or more links; and/or, different ACs of the same category in two or more links in the multiple links In the case that the data obtains the transmission right at the same time, the AC data is transmitted in the two or more links respectively.
  • the sending device in a possible implementation manner, if the sending device is used to obtain the sending right of the same AC data of the same category in two or more of the multiple links at the same time In this case, the AC data is sent in one of the two or more links; then: the sending device is in the same category of the two or more links in the multiple links In the case that the same AC data obtains the transmission right at the same time, arbitration is specifically used to transmit the AC data in one of the two or more links.
  • the data includes access category data, namely AC data
  • the AC data includes at least one of AC_VO data, AC_VI data, AC_BE data, and AC_BK data.
  • the two Send the AC data in the above links in the case where AC data of different types in two or more of the multiple links obtain the sending right at the same time, the two Send the AC data in the above links, and delete the AC data in the sending queues in other links of the multiple links; and/or, in two of the multiple links
  • the AC data is transmitted in one of the two or more links, and the AC data existing in the multiple links is deleted.
  • the AC data in the transmission queues in other links of the road and/or, in the case that different AC data of the same type in two or more links in the multiple links obtain the transmission right at the same time, Send the AC data in the two or more links respectively, and delete the AC data in the sending queues in other links of the multiple links.
  • the sending module if the sending module is used to obtain the sending right of the same AC data of the same category in two or more of the multiple links at the same time In this case, send the AC data in one of the two or more links, and delete the AC data in the sending queues in the other links of the multiple links; then:
  • the sending module obtains the sending right of the same AC data of the same category in two or more links of the multiple links at the same time, it specifically uses arbitration to select one of the two or more links.
  • the AC data is sent in one link, and the AC data in the sending queues in other links of the multiple links is deleted.
  • using arbitration to transmit the AC data in one of the two or more links includes: determining the transmission according to the priority of the link The link of the AC data; and/or, the link for sending the AC data is determined according to the arbitration result within a predetermined arbitration time; and/or, the link for sending the AC data is determined according to the link load status of each link that has won the transmission right AC data link.
  • the sending module sends the data again in the determined link;
  • the data sending device is an access point AP
  • the second device is a station STA, or the data sending device is a station STA, and the second device is an access point AP.
  • a multi-link system includes a first device and a second device, wherein there are multiple links between the first device and the second device,
  • the first device includes the aforementioned data sending device.
  • a data sending device including: a processor; a memory for storing executable instructions of the processor; wherein the processor is configured to execute the above-mentioned data sending method.
  • a non-volatile computer-readable storage medium having computer program instructions stored thereon, and the computer program instructions, when executed by a processor, implement the above-mentioned data sending method.
  • each data to be transmitted may not be allocated links in advance, but Each data is added to the transmission queue of the available link for the data. Then, the data is transmitted according to the result of the transmission right competition of the link, and after the data is transmitted in a certain link, the data is deleted from the transmission queue of the other existing links.
  • data transmission method, data transmission device, multi-link system, and storage medium of the present disclosure data can be transmitted using all allowed links (available links), which is beneficial to reducing delay.
  • each link can be better dynamically utilized, thereby improving data transmission efficiency.
  • Fig. 1 shows a schematic diagram of the data transmission process of the FST concept.
  • Fig. 2 shows a flowchart of a data sending method according to an embodiment of the present disclosure.
  • FIG. 3 shows a diagram of an example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 4 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 5 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 6 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 7 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 8 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 9 is a diagram showing a setting example of a time slot offset according to an embodiment of the present disclosure.
  • FIG. 10 is a diagram showing a setting example of the arbitration time according to an embodiment of the present disclosure.
  • FIG. 11 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 12 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 13 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • FIG. 14 shows a diagram of still another example of a data transmission method according to an embodiment of the present disclosure.
  • Fig. 15 shows a structural block diagram of a data sending device according to another embodiment of the present disclosure.
  • Fig. 16 shows a structural block diagram of a multi-link system according to another embodiment of the present disclosure.
  • Fig. 17 shows a block diagram of the hardware structure of a data sending device according to another embodiment of the present disclosure.
  • Fig. 18 shows a block diagram of the hardware structure of a data sending device according to another embodiment of the present disclosure.
  • a link (channel or ch or link) is pre-allocated, and then data is sent on the link.
  • congestion may occur in the link, or the actual load in the link may change, that is, the link may not be properly transmitted in the pre-allocated link The data.
  • the link cannot be switched quickly and in time. Therefore, the data transmission efficiency of this method is not high, and there is still room for improvement.
  • the present disclosure provides a data transmission method, a data transmission device, a multi-link system, and a storage medium.
  • this data transmission method between the AP and the STA, for the data to be sent to the opposite end, the link is not allocated in advance, but the data is added to the transmission queue of the link available for the data. Then, after the data is sent in one of the available links, the data is deleted from the sending queue of the other available links. Therefore, in the present disclosure, data can be sent using all allowed links (available links), which is beneficial for reducing delay.
  • each link can be better dynamically utilized. For example, if one link is congested, data supporting multiple links will be automatically sent using other links, thereby improving the efficiency of data transmission.
  • the load on a link is low (low loading)
  • the data supporting the link can be automatically transferred to the link for transmission, so that the data can be automatically transmitted using the link with less load. , Which can also improve the efficiency of data transmission.
  • Fig. 2 shows a flowchart of a data sending method according to an embodiment of the present disclosure.
  • This method can be applied to AP or STA.
  • the method will be mainly applied to AP for description.
  • There may be multiple links between the AP and the STA and each link may exist in the 2.4 GHz band, 5 GHz band, 6 GHz band, or 60 GHz band.
  • each link of the present disclosure may also exist in frequency bands other than the aforementioned frequency bands.
  • description will be made by assuming that there are two links between the AP and the STA (for example, link 1 exists in the 2.4 GHz or 5 GHz frequency band, and link 2 exists in the 6 GHz frequency band).
  • one AP corresponds to one or more STAs.
  • the following will mainly describe that one AP corresponds to four STAs (STA1, STA2, STA3, and STA4).
  • the data sending method mainly includes the following steps:
  • Step S101 For data to be sent to the STA, determine available links among multiple links respectively;
  • Step S102 adding data to the sending queues of the available links for the data respectively.
  • Step S103 Send data according to the result of the transmission right competition of the multiple links.
  • the data to be transmitted in one of the multiple links is in the transmission queue of the other link, send data from the other link Delete the sent data from the sending queue of the road.
  • the AP first determines the data to be sent to one or more STAs.
  • the data includes AC data (hereinafter also referred to as AC packet or AC data packet).
  • the data can also include other types of data.
  • the data is mainly described as AC data.
  • the AC data includes at least one of AC_VO data (voice data), AC_VI data (video data), AC_BE data (Best Effort data), and AC_BK data (background data) .
  • the sending priority order of these four types of data is AC_VO>AC_VI>AC_BE>AC_BK.
  • the AP can send data to STA1, STA2, STA3, and STA4, where it sends AC_VO data to STA1 and STA3 in a certain order, sends AC_VI data to STA4 and STA2 in a certain order, and sends AC_VI data to STA1, STA2, and STA3 in a certain order.
  • the types of AC data and the transmission priority of AC data described above are the same as those of the existing IEEE 802.11 protocol, and no detailed description is provided here.
  • step S101 for the determined AC data sent to the STA, the AP determines an available link for the AC data among multiple links between the AP and the STA (ie, link 1 and link 2).
  • all AC data sent to each STA may support link 1 and link 2, that is, each STA may support link 1 and link 2.
  • the AP determines link 1 and link 2 as available links for all AC data.
  • AC data to STA1 may only support link 1
  • AC data to STA4 may only support link 2
  • AC data to STA2 and STA3 may support link 1 and link 2, that is, STA1 Support link 1
  • STA4 supports link 2
  • STA2 and STA3 support link 1 and link 2.
  • link 1 as an available link
  • for AC data to STA4 determine link 2 as an available link
  • the AC_VO data and AC_VI data to STA1 may only support link 1, while the AC_BE data and AC_BK data to STA1 may only support link 2.
  • link 1 is determined as an available link
  • link 2 is determined as available data.
  • the AC data may be determined according to specific conditions (for example, for possible situations such as AC data to each STA and AC data type of each STA) Available link.
  • different available links may be set for any data (AC data, AC packet, or AC packet) sent to any STA.
  • step S102 after the available link of the AC data is determined, the AC data is added to the transmission queue for the available link of the AC data.
  • all AC data sent to each STA (ie, STA1, STA2, STA3, and STA4) support link 1 and link 2 (that is, each STA supports link 1 and link In the case of 2)
  • the AP adds all these AC data to the sending queues of link 1 and link 2. That is, at this time, the AC data may be sent to each STA in link 1, or may be sent to each STA in link 2.
  • the AP will send to STA1 Add the AC data to the sending queue of link 1, add the AC data to STA4 to the sending queue of link 2, and add the AC data to STA2 and STA3 to the sending queue of link 1 and link 2. in.
  • AC data to STA1 can only be sent to STA1 in link 1
  • AC data to STA4 can only be sent to STA2 in link 2
  • AC data to STA2 and STA3 can be sent to STA2 in link 1 and Link 2 is sent to STA2 and STA3 accordingly.
  • step S103 in the AP, multiple links will compete for the transmission right (Contention) in each time period, and then the AP selects the available data from the AC according to the result of the transmission right competition of the multiple links. Select an appropriate link among the links to send the AC data, and if the AC data exists in the sending queue of the other link, delete the sent AC data from the sending queue of the other link.
  • the AC_VO data to STA1 in link 1 wins, that is, the AP sends the AC_VO data to STA1 in link 1, and if The AC_VO data exists in the transmission queue of link 2 (that is, link 2 is also an available link for the AC_VO data), and the AP deletes the AC_VO from the transmission queue of link 2.
  • the AP sends the AC_VI data to STA4 in link 2
  • the AP sends the AC_VI data to STA4 in link 2
  • the AP deletes the AC_VI from the sending queue of link 1.
  • the AP sends corresponding AC data to each STA in sequence in the link where the sending right is obtained, and if the AC data exists in the sending queue of other links, the AC data is deleted from the sending queue.
  • AC data is mainly used as an example of the data of the present disclosure, but the present disclosure is not limited to this, and the data to be sent in the present disclosure may be other types of data according to actual application scenarios.
  • the data is mainly transmitted from the AP to the STA.
  • the data transmission method described above can also be applied to the data transmitted from the STA to the AP.
  • one AP corresponds to four STAs, however, one AP may correspond to not four (for example, one, two, three, or more than five STAs).
  • the aforementioned multiple links may be located in the same frequency band.
  • link 1, link 2, and link 3 may all be located in the 2.4 GHz frequency band, or link 1, link Link 2 and Link 3 can all be located in the 5GHz frequency band, or Link 1, Link 2, and Link 3 can all be located in the 6GHz frequency band, or Link 1, Link 2, and Link 3 can all be located in the 60GHz frequency band .
  • the above multiple links may also be located in different frequency bands.
  • link 1 may be located in the 2.4 GHz frequency band
  • link 2 may be located in the 5 GHz frequency band
  • link 3 may be located in the 60 GHz frequency band.
  • link 1 and link 2 may be located in the 2.4 GHz frequency band, and link 3 may be located in the 60 GHz frequency band. Regardless of whether multiple links are located in the same frequency band or in different frequency bands, the above data transmission method can be similarly applied.
  • each data to be transmitted may not be allocated links in advance, but each data may be added to the transmission queue of the available link for the data. Then, the data is transmitted according to the result of the transmission right competition of the link, and after the data is transmitted in a certain link, the data is deleted from the transmission queue of the other existing links.
  • data can be transmitted using all allowed links (available links), which is beneficial to reducing delay.
  • each link can be better dynamically utilized. For example, if one link is congested, data supporting multiple links will be automatically sent using other links, thereby improving the efficiency of data transmission.
  • the AC data that supports the link can be automatically transferred to the link for transmission, so that the data can be automatically transmitted using the link with less load, thereby also Can improve the efficiency of data transmission.
  • AC data is still used as an example of data in the present disclosure for description.
  • AC_VO data, AC_VI data, AC_BE data, and AC_BK data in AC data can be referred to as VO data, VI data, BE data, and BK data, respectively
  • Data, AC_BE data and AC_BK data can be referred to as VO1 data, VI1 data, BE1 data and BK1 data respectively
  • AC_VO data, AC_VI data, AC_BE data and AC_BK data in link 2 (ch2) are referred to as VO2 data and VI2 respectively.
  • the AC_VO data sent in order can be AC_VO(1), AC_VO(2), AC_VO(3) and AC_VO(4), or VO(1), VO(2) ), VO(3) and VO(4).
  • AC_VI data, AC_BE data, and AC_BK data can be AC_VO(1), AC_VO(2), AC_VO(3) and AC_VO(4).
  • FIG. 3 shows a diagram of an example of a data transmission method according to an embodiment of the present disclosure.
  • the data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • all AC data (AC_VO data, AC_VI data, AC_BE data and AC_BK data) to each STA ie STA1, STA2, STA3, and STA4
  • link 1 ch1
  • link 2 link 2
  • step S103 the sequence of AP sending data to each STA is as follows: (1) VO data to STA1 is sent in ch1, and this data is deleted from the sending queue of ch2; (2) VI data to STA4 Send in ch2, and delete this data in the sending queue of ch1; (3) Send the VI data to STA2 in ch1, and delete this data in the sending queue of ch2; (4) VO data to STA3 Send in ch2, and delete this data in the sending queue of ch1; (5) Send the BE data to STA1 in ch2, and delete this data in the sending queue of ch1; and (6) Send BE to STA2 The data is sent in ch1, and the data is deleted from the sending queue of ch2.
  • the AC data (the dark part) is deleted from the sending queue in other links.
  • these AC data (dark parts) are sequentially deleted from the sending queues of other links .
  • FIG. 4 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • the data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • AC data to STA1 only supports ch1 (that is, STA1 only supports ch1)
  • AC data to STA4 only supports ch2 (that is, STA4 only supports ch2)
  • AC data to other STAs supports ch1 and ch2. Both (that is, STA2 and STA3 support both ch1 and ch2).
  • step S102 the AC data to STA1 is only added to the sending queue of ch1
  • the AC data to STA4 is only added to the sending queue of ch2
  • the AC data to STA2 and STA3 are added to In the sending queue of ch1 and ch2.
  • VO1 data, VI2 data, VI1 data, VO2 data, BE2 data, and BE1 data sequentially win the link in the link transmission right competition.
  • step S103 the sequence of sending AC data from AP to each STA is as follows: (1) VO data to STA1 is sent in ch1; (2) VI data to STA4 is sent in ch2; (3) to VI data of STA1 is sent in ch1; (4) VO data to STA4 is sent in ch2; (5) BE data to STA4 is sent in ch2; and (6) BE data to STA4 is sent in ch1. Since none of the AC data sent in (1) to (6) above exists in the sending queue of other links, there is no need to delete.
  • FIG. 5 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • the data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • AC data to STA1 only supports ch1, while AC data to other STAs (ie, STA2, STA3, and STA4) support both ch1 and ch2. Therefore, in the above step S102, the AC data to STA1 is only added to the sending queue of ch1, and the AC data to other STAs (ie STA2, STA3, and STA4) are added to the sending queues of ch1 and ch2.
  • VO1 data, VI2 data, VI1 data, VO2 data, BE2 data, and BE1 data sequentially win the link in the link transmission right competition.
  • the sequence of AP sending AC data to each STA is as follows: (1) VO data to STA1 is sent in ch1; (2) VI data sent to STA2 is sent in ch2, and this data Delete in the sending queue of ch1; (3) Send the VI data to STA1 in ch1; (4) Send the VO data to STA3 in ch2, and delete this data in the sending queue of ch1; (5) Send to The BE data of STA2 is sent in ch2, and this data is deleted from the sending queue of ch1; and (6) BE data to STA1 is sent in ch1.
  • AC data to certain STAs may only support specific links
  • some AC data to certain STAs may also only support specific links.
  • FIG. 6 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • the data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • STA1 only supports ch1, VO data and VI data to STA2 support ch1 and ch2, BE data and BK data to STA2 only support ch2, and other STAs (ie, STA3 and ST4) support ch1 and ch2 Both.
  • step S102 the AC data to STA1 is only added to the transmission queue of ch1, the AC data to STA3 and ST4 are added to the transmission queues of ch1 and ch2, and the VO data and VI data to STA2 are added to the transmission queue of ch1 and ch2.
  • the BE data and BK data to STA2 are only added to the sending queue of ch2.
  • VO1 data, VI2 data, VI1 data, VO2 data, BE2 data, and BE1 data sequentially win the link in the link transmission right competition.
  • step S103 the sequence of AP sending AC data to each STA is as follows: (1) VO data to STA1 is sent in ch1; (2) VI data to STA2 is sent in ch2, and the data is sent in ch2 at the same time. Delete from the sending queue of ch1; (3) Send the VI data to STA1 in ch1; (4) Send the VO data to STA3 in ch2, and delete this data from the sending queue of ch1; (5) Send to STA2 The BE data for STA1 is sent in ch2; and (6) BE data for STA1 is sent in ch1.
  • Different types of AC data in more than two links obtain the transmission right at the same time.
  • the AC data is sent in the two or more links respectively, and the AC data in the sending queues existing in the other links of the multiple links is deleted.
  • FIG. 7 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • This data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • all AC data AC_VO data, AC_VI data, AC_BE data, and AC_BK data
  • STA1, STA2, STA3, and STA4 supports ch1 and ch2. Therefore, in step S102, all the AC data for each STA is added to the transmission queues of ch1 and ch2.
  • FIG. 7 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • This data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • all AC data AC_VO data, AC_VI data, AC_BE data, and AC_BK data
  • step S102
  • the AC_VO data to STA1 in ch1 and the AC_VI data to STA4 in ch2 win the link transmission right competition at the same time, that is, they win the link at the same time.
  • these two types of data can be sent at the same time.
  • the AC_VO data to STA1 will be sent in ch1
  • the AC_VI data to STA4 will be sent in ch2.
  • the data (the dark part) is deleted from the sending queue of other links.
  • VO1 data and BE2 data can win the link at the same time, or BE1 and BK2 data can win the link at the same time, and so on.
  • BE1 and BK2 data can win the link at the same time, and so on.
  • the above data transmission method can be similarly applied.
  • FIG. 8 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • This data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • all AC data AC_VO data, AC_VI data, AC_BE data, and AC_BK data
  • STA1, STA2, STA3, and STA4 supports ch1 and ch2. Therefore, in step S102, all the AC data for each STA is added to the transmission queues of ch1 and ch2.
  • FIG. 8 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • This data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • all AC data AC_VO data, AC_VI data, AC_BE data, and AC_BK data
  • step S102
  • the AC_BK data to STA4 in ch1 and the AC_BK data to STA4 in ch2 win the link transmission right competition at the same time, that is, they win the link at the same time.
  • one of the links can be selected to send the AC data, and the AC data can be deleted from the sending queue of other links.
  • AC data For example, as shown in FIG. 8, the AP can send AC_BK data to STA4 in ch1, and delete the AC_BK data (the dark part) from the sending queue of ch2.
  • the link for sending the AC data can be determined according to at least one of the following methods.
  • the link for sending the AC data can be determined according to the priority of the link.
  • the priority of the link may be preset for each link, for example. For example, a link with a high priority can be selected to send the AC data, and the AC data can be deleted from the sending queue of other links where it exists. In this way, it is possible to avoid the situation where two or more links send the same AC data at the same time according to the priority set for each link of the link in advance.
  • FIG. 9 is a diagram showing a setting example of a time slot offset according to an embodiment of the present disclosure.
  • the starting points of the time slots are different from each other, that is, there are different time slot offsets.
  • the order of the starting point of the slot offset is ch1, ch2, ch3, and ch4. Since the start points of the time slot offset are different, only one link in each time slot can obtain the opportunity to send AC data.
  • ch1 with the earliest start point of the time slot offset can be selected to send the AC data, and the AC data can be deleted from the sending queue of other links where it exists.
  • the time slot offset for each link in advance, it is possible to avoid the situation that these two or more links send the same AC data at the same time.
  • the link for sending the AC data can be determined according to the arbitration result within the predetermined arbitration time (Arbitration time). In the case that the same AC data of the same category wins the link at the same time, it can be determined in which link the AC data is sent within the arbitration time.
  • FIG. 10 is a diagram showing a setting example of the arbitration time according to an embodiment of the present disclosure. As shown in FIG. 10, there are four links of ch1, ch2, ch3, and ch4 between the AP and the STA, and the vertical arrows indicate the arbitration time set for each link. During the arbitration time, the AP can decide in which link the AC data is sent, and then delete the AC data from the sending queues of other links.
  • the link to send the AC data can also be determined according to the link load status of each link that has won the transmission right. For example, a link with less load may be selected from each link that has won the transmission right to transmit the AC data, and the AC data may be deleted from the transmission queue of other links.
  • one of the foregoing four methods may be used, or a combination of multiple methods of the foregoing four methods may be used.
  • the AC data may be sent in the two or more links respectively, and the AC data in the sending queues existing in the other links of the multiple links may be deleted.
  • FIG. 11 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • This data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • STA1 only supports ch1
  • STA4 only supports ch2,
  • STA2 and STA3 support ch1 and ch2. Therefore, in step S102, the AC data to STA1 is added to the sending queue of ch1, the AC data to STA4 is added to the sending queue of ch1, and the AC data to STA2 and STA3 are added to the sending queue of ch1 and ch2. Sending queue.
  • FIG. 11 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • This data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • the AC_VO data to STA1 in ch1 and the AC_VO data to STA4 in ch2 win the link transmission right competition at the same time, that is, they win the link at the same time. Since the AC data to be sent in different links is of the same type but different AC data, it is necessary to send these different AC data in different links in a certain order, and send them from other links Delete the AC data from the queue. As shown in FIG. 11, since the AC_VO data in ch1 to STA1 does not exist in the transmission queue of ch2, there is no need to delete the data after the AC_VO data is sent.
  • FIG. 12 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • This data sending method is applied to the AP, that is, data is sent from the AP to the STA.
  • the data transmission method in this example can be equally applied to the STA.
  • STA1, STA2, STA3, and STA4 all support ch1 and ch2. Therefore, in step S102, the AC data to STA1, STA2, STA3, and STA4 are added to the transmission queues of both ch1 and ch2.
  • the AC_BK data in ch1 and the AC_BK data in ch2 win the link transmission right competition at the same time, that is, the link is won at the same time.
  • the AC may be sent in the two or more links in sequence according to at least one of the following methods: Data, and delete the AC data existing in the transmission queues in other links of the multiple links.
  • different AC data of the same category can be sent according to the priority of each link.
  • the priority of the link may be preset for each link, for example.
  • the different AC data of the same category can be sent sequentially according to the priority from high to low, and the different AC data of the same category can be sequentially deleted from the sending queue of other links where it exists.
  • different AC data of the same category can be sent according to the time slot offset of the link.
  • the slot offset may be set for each link in advance.
  • different AC data of the same category can be sent according to the starting point of each slot offset.
  • the order of the starting point of the slot offset is ch1, ch2, ch3, and ch4. Since the start points of the time slot offset are different, only one link in each time slot can obtain the opportunity to send AC data.
  • the different AC data of the same category can be sent sequentially in the order of ch1, ch2, ch3, and ch4, and These different AC data of the same category are sequentially deleted from the sending queues of other links where they exist.
  • different AC data of the same category can be sent in sequence according to the arbitration result within the arbitration time of the link, and different AC data of the same category can be sent in sequence from other links where it exists. Deleted from the queue.
  • the arbitration time may be set for each link in advance. An example of setting the arbitration time is shown in Figure 10.
  • different AC data of the same type can also be sent according to the link load status of each link that has won the transmission right. For example, different AC data of the same category can be sent sequentially in each link that has won the transmission right in the order of links with less load to more, and the different AC data of the same category can be transferred from other links in sequence. Deleted from the sending queue.
  • FIG. 13 shows a diagram of another example of a data transmission method according to an embodiment of the present disclosure.
  • the data sending method is applied to the STA, that is, data is sent from the STA to the AP.
  • the data transmission method in this example can be equally applied to APs.
  • the data transmission method of the STA is basically the same as the data transmission method of the AP, but since there is usually one AP and there are usually multiple STAs, it is easier to send AC data from the STA to the AP than to send AC data from the AP to the STA.
  • the STA supports ch1 and ch2. Therefore, in step S102, all the AC data to the AP is added to the transmission queues of ch1 and ch2.
  • step S103 the sequence of sending AC data from STA to AP is as follows: (1) VO data to AP is sent in ch1, and this data is deleted from the sending queue of ch2; (2) to AP VI data is sent in ch2, and the data is deleted in the sending queue of ch1; (3) VI data to the AP is sent in ch1, and the data is deleted in the sending queue of ch2; (4) to the AP VO data is sent in ch2, and the data is deleted in the sending queue of ch1; (5) BE data to the AP is sent in ch2, and the data is deleted in the sending queue of ch1; and (6) to the AP The BE data is sent in ch1, and this data is deleted in the sending queue of ch2. Since the AC data sent in (1) to (6) above are in the sending queue
  • FIG. 14 shows a diagram of still another example of a data transmission method according to an embodiment of the present disclosure.
  • the data sending method is applied to the STA, that is, AC data is sent from the STA to the AP.
  • the data transmission method in this example can be equally applied to APs.
  • the AC_VO data, AC_BE data and AC_BK data to AP support ch1 and ch2
  • the AC_VI(1) data to AP supports ch1 and ch2
  • the AC_VI(2) data to AP only supports ch1 and the data to AP supports ch1 and ch2.
  • the AC_VI(3) data only supports ch2.
  • step S102 the AC_VO data, AC_BE data, AC_BK data, and AC_VI(1) data to the AP are added to ch1 and ch2, the AC_VI(2) data to the AP is only added to ch1, and AC_VI(3) ) Data is only added to ch2.
  • the sequence of sending AC data from STA to AP is as follows: (1) AC_VO (1) data to AP is sent in ch1, and the data is sent in ch2 at the same time (2) Send to AP's AC_VI(1) in ch2, and delete this data in ch1's sending queue; (3) Send to AP's AC_VI(2) in ch1; (4) ) Send the AC_VO(2) to the AP in ch2, and delete the data in the sending queue of ch1; (5) Send the AC_BE(1) data to the AP in ch2, and send the data in the sending queue of ch1 (6) The AC_BE(2) data to the AP is sent in ch1, and the data is deleted in the sending queue of ch2.
  • step S103 it is possible to automatically select from the available links according to the results of the transmission right competition of multiple links and the load or congestion conditions of the available links of the AC data.
  • the link to send AC data it is possible to automatically select from the available links according to the results of the transmission right competition of multiple links and the load or congestion conditions of the available links of the AC data.
  • the AC data in ch1 wins the link according to the result of the transmission right competition of multiple links, and the load condition of ch1 is good (ie, the load is normal or less), then the AC can be sent in ch1 data.
  • the load condition of ch1 is poor (that is, the load is high)
  • ch2 can be selected to send the AC data.
  • the AC data is usually sent in ch1. If ch1 operates abnormally (congestion occurs), if the AC data exists in other links (for example, ch2), ch2 can be selected to send the AC data.
  • the AC data in the case that the AC data fails to be sent in the determined link, the AC data can usually occur again in the determined link.
  • AC data that is, retry (hardware retry) is usually only applied to the previous link.
  • the AC_VO data to STA1 supports links 1, 2, 3, and 4. If link 2 obtains the transmission right, the AC_VO data is sent in link 2, and the AC_VO data is deleted from other links. In this case, if the AC_VO data fails to be sent in link 2, it is usually only sent again in link 2 (retry). Of course, if failure still occurs after a predetermined number of retries, the link can be reselected for transmission.
  • each link independently maintains its encryption key. Specifically, if the BSSID (Basic Service Set Identifier, Basic Service Set Identifier) of different links is different, the encryption key is different for different links. On the other hand, if all the links have the same BSSID, the encryption keys for all links are the same, but the PN (Production Number) number in the encryption key is different for different links.
  • the encryption and decryption methods of each link are the same as the existing protocol, and will not be repeated here. Therefore, according to the data transmission method of the embodiment of the present disclosure, each data to be transmitted may not be allocated links in advance, but each data may be added to the transmission queue of the available link for the data.
  • the data is transmitted according to the result of the transmission right competition of the link, and after the data is transmitted in a certain link, the data is deleted from the transmission queue of the other existing links.
  • data can be transmitted using all allowed links (available links), which is beneficial to reducing delay.
  • each link can be better dynamically utilized, thereby improving data transmission efficiency.
  • the data transmission method of the present disclosure is not limited to the above-mentioned embodiments.
  • the data transmission method may be applied to AP, STA or other types of first devices, and there may be multiple data transmission methods between the first device and the second device.
  • This data transmission method mainly includes the following steps:
  • the data is transmitted according to the result of the transmission right competition of multiple links.
  • the data includes AC data
  • the AC data includes at least one of AC_VO data, AC_VI data, AC_BE data, and AC_BK data.
  • sending data according to the result of the transmission right competition of multiple links may include:
  • the AC data is sent in the two or more links respectively.
  • sending data according to the result of the transmission right competition of multiple links may include:
  • the AC is transmitted in one of the two or more links data.
  • arbitration may be used to transfer data to one of the two or more links.
  • the AC data is sent in the link.
  • the specific method of arbitration refer to the data sending method of the foregoing embodiment.
  • the link to send the AC data is determined The four ways of roads are not repeated here.
  • sending data according to the result of the transmission right competition of multiple links may include:
  • the AC data is sent in the two or more links respectively.
  • the data transmission method may also not allocate links for each data to be sent in advance, but first determine the available links for the data, and then send the data according to the result of the link's transmission right competition. It can add the data to the sending queue of the available link after determining the available link, and after sending the data in a certain link, the data can be removed from the existing link. Delete from the sending queue of other links; it is also possible to omit the addition and deletion of data in the sending queue of the link, and use other methods to record or manage the data to be sent by each link.
  • data can be transmitted using all allowed links (available links), which is beneficial to reducing delay.
  • each link can be better dynamically utilized, thereby improving data transmission efficiency.
  • Fig. 15 shows a structural block diagram of a data sending device according to another embodiment of the present disclosure.
  • the data sending device 200 includes: a determining module 201, configured to determine available links among the multiple links for data to be sent to the second device; and an adding module 202, configured to Add the data to the sending queue of the available links for the data; and the sending module 203 is configured to send the data according to the result of the transmission right competition of the multiple links, wherein If the data to be transmitted in one link of the link exists in the transmission queue of the other link, the data is deleted from the transmission queue of the other link.
  • the data sending device 200 of this embodiment can be used to execute the data sending method set forth in the foregoing embodiment.
  • the sending module 203 may be used to send the data in the one link in the case that one of the multiple links obtains the sending right, and delete The data exists in the transmission queue in other links of the plurality of links.
  • the data sending device 200 may further include: an application module 204, configured to apply the time slot offset technology in the multiple links.
  • the data includes access category data, namely AC data
  • the AC data includes at least one of AC_VO data, AC_VI data, AC_BE data, and AC_BK data.
  • the sending module 203 may be configured to: in the case where AC data of different types in two or more of the multiple links obtain the sending right at the same time, respectively The AC data is sent in the two or more links, and the AC data in the sending queues in other links of the multiple links is deleted.
  • the sending module 203 may be used to: in the case that the same AC data of the same category in two or more of the multiple links obtains the sending right at the same time, The AC data is sent in one of the two or more links, and the AC data in the sending queues in the other links of the multiple links is deleted.
  • the sending module 203 can be used to: in the case that the same AC data of the same category in two or more of the multiple links obtains the sending right at the same time, use Arbitrate to send the AC data in one of the two or more links, and delete the AC data in the sending queues in the other links of the multiple links.
  • the sending module 203 may be used to: when different AC data of the same category in two or more links of the multiple links obtain the sending right at the same time, respectively The AC data is sent in the two or more links, and the AC data in the sending queues existing in the other links of the multiple links is deleted.
  • the sending module 203 sends the data again in the determined link.
  • the data sending device 200 is an access point AP
  • the second device is a station STA
  • the data sending device 200 is a station STA
  • the second device is an access point. Entry point AP.
  • each data to be transmitted may not be allocated links in advance, but each data may be added to the transmission queue of the available link for the data. Then, the data is transmitted according to the result of the transmission right competition of the link, and after the data is transmitted in a certain link, the data is deleted from the transmission queue of the other existing links.
  • data can be sent using all allowed links (available links), which is beneficial to reducing delay.
  • each link can be better dynamically utilized, thereby improving data transmission efficiency.
  • the data sending device of the present disclosure is not limited to the above-mentioned embodiments.
  • the data sending device may be applied to AP, STA or other types of first devices, and there may be multiple devices between the first device and the second device.
  • the data sending device includes: a determining module for determining available links among the multiple links for data to be sent to the second device; and a sending module for determining the available links according to the multiple links The data is sent as a result of the competition for the sending right.
  • the data includes AC data
  • the AC data includes at least one of AC_VO data, AC_VI data, AC_BE data, and AC_BK data.
  • the sending module may be used to: in the case where AC data of different categories in two or more of the multiple links obtain the sending right at the same time, respectively The AC data is sent in more than two links.
  • the sending module may be used to: in the case where the same AC data of the same category in two or more of the multiple links obtains the sending right at the same time, The AC data is sent in one of the two or more links.
  • arbitration may be used to transfer data to one of the two or more links.
  • the AC data is sent in the link.
  • the specific method of arbitration refer to the data sending method of the foregoing embodiment.
  • the link to send the AC data is determined The four ways of roads are not repeated here.
  • the sending module may be used to: in the case that different AC data of the same category in two or more of the multiple links obtain the sending right at the same time, respectively AC data is sent on the two or more links.
  • the data sending device may also not allocate links for each data to be sent in advance, but first determine the available links for the data, and then send the data according to the result of the link's transmission right competition. It can add the data to the transmission queue of the available link after the available link is determined like the previous device embodiment, and after the data is sent in a certain link, the data is removed from the existing link. Delete from the sending queue of other links; it is also possible to omit the addition and deletion of data in the sending queue of the link, and use other methods to record or manage the data to be sent by each link. In this way, according to the data sending device of the present disclosure, data can be sent using all allowed links (available links), which is beneficial to reducing delay. In addition, each link can be better dynamically utilized, thereby improving data transmission efficiency.
  • Fig. 16 shows a structural block diagram of a multi-link system according to another embodiment of the present disclosure.
  • the multi-link system 500 includes a first device 300 and a second device 400. There are multiple links between the first device 300 and the second device 400, and the first device 300 may be the aforementioned data sending device 200.
  • Either the first device or the second device in the multi-link system of this embodiment can be used to execute the data sending method set forth in the foregoing embodiment.
  • the specific process of the foregoing data sending method please refer to the detailed description of the foregoing embodiment.
  • each data to be transmitted may not be allocated links in advance, but each data may be added to the transmission queue of the available link for the data. Then, the data is transmitted according to the result of the transmission right competition of the link, and after the data is transmitted in a certain link, the data is deleted from the transmission queue of the other existing links.
  • data can be sent using all allowed links (available links), which is beneficial to reducing delay.
  • each link can be better dynamically utilized, thereby improving data transmission efficiency.
  • Fig. 17 shows a block diagram of the hardware structure of a data sending device according to another embodiment of the present disclosure.
  • the device 1700 may include a processor 901 and a machine-readable storage medium 902 storing machine-executable instructions.
  • the processor 901 and the machine-readable storage medium 902 may communicate via a system bus 903.
  • the processor 901 reads the machine executable instructions corresponding to the data sending method in the machine-readable storage medium 902 to execute the data sending method described above.
  • the machine-readable storage medium 902 mentioned herein may be any electronic, magnetic, optical, or other physical storage device, and may contain or store information, such as executable instructions, data, and so on.
  • the machine-readable storage medium may be: RAM (Radom Access Memory), volatile memory, non-volatile memory, flash memory, storage drives (such as hard drives), solid state drives, and any type of storage disk (Such as CD, DVD, etc.), or similar storage media, or a combination of them.
  • Fig. 18 shows a block diagram of the hardware structure of a data sending device according to another embodiment of the present disclosure.
  • the device 1800 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the device 1800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, And the communication component 816.
  • a processing component 802 a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, And the communication component 816.
  • the processing component 802 generally controls the overall operations of the device 1800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the foregoing method.
  • the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components.
  • the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.
  • the memory 804 is configured to store various types of data to support the operation of the device 1800. Examples of such data include instructions for any application or method operating on the device 1800, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 804 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power supply component 806 provides power for various components of the device 1800.
  • the power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 1800.
  • the multimedia component 808 includes a screen that provides an output interface between the device 1800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 808 includes a front camera and/or a rear camera. When the device 1800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 810 is configured to output and/or input audio signals.
  • the audio component 810 includes a microphone (MIC).
  • the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 804 or transmitted via the communication component 816.
  • the audio component 810 further includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 814 includes one or more sensors for providing the device 1800 with various aspects of status assessment.
  • the sensor component 814 can detect the on/off status of the device 1800 and the relative positioning of components, such as the display and keypad of the device 1800.
  • the sensor component 814 can also detect the position of the device 1800 or a component of the device 1800. Changes, the presence or absence of contact between the user and the device 1800, the orientation or acceleration/deceleration of the device 1800, and the temperature change of the device 1800.
  • the sensor component 814 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the device 1800 and other devices.
  • the device 1800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the device 1800 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing devices
  • PLD programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic components are implemented to implement the above methods.
  • a non-volatile computer-readable storage medium such as a memory 804 including computer program instructions, which can be executed by the processor 820 of the device 1800 to complete the data sending method described above.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本公开提供一种数据发送方法、数据发送设备、多链路系统和存储介质。该数据发送方法应用于第一设备,其中在第一设备与第二设备之间存在多个链路,所述方法包括:针对要向第二设备发送的数据,分别在多个链路中确定可用链路;以及根据多个链路的发送权竞争结果来发送数据。根据本公开实施例提供的数据发送方法、数据发送设备、多链路系统和存储介质,数据可以使用所有允许的链路进行发送,这有利于降低延迟,并且可以更好地动态利用各个链路,由此提高数据发送效率。

Description

数据发送方法、数据发送设备、多链路系统和存储介质
本申请要求申请日为2019/1/31的中国专利申请201910098236.6的优先权。本申请引用上述中国专利申请的全文。
技术领域
本公开涉及通信技术领域,尤其涉及一种数据发送方法、数据发送设备、多链路系统和存储介质。
背景技术
在传统的WiFi(Wireless Fidelity,无线保真)系统中,只有一个MAC(Media Access Control,媒体访问控制)层和一个PHY(Port Physical Layer,端口物理层)(包括RF(Radio Frequency,射频))。对于支持双频段(2.4GHz和5GHz)的典型WiFi系统,通常仅启用一个RF来发送数据。这是WLAN系统单链路的一个例子。
随着WLAN(Wireless Local Area Network,无线局域网)标准的进展,在IEEE802.11EHT和RTA TIG中,已经讨论了多频段(2.4GHz、5GHz和60GHz)或多链路(以下还称为信道或ch)的特征。由此,在实际中,WLAN产品(例如,支持多频段多并行特征的产品)支持多链路变得流行。
然而,目前的多频段多并行特征产品只是工作在不同频段的多个WLAN设备。在这多个频段的链路之间,在MAC和PHY层方面是独立的。为此,在IEEE802.11ad中,采用了FST(Fast Session Transfer,快速会话转移)方法。FST方法是多链路的一个例子。在FST方法中,定义了FST特征,并且还针对60GHz和其它(2.4或5GHz)的多个频段中的多个链路进行寻址。具体而言,如图1所示,在IEEE802.11ad中,FST概念在两个MAC(例如,MAC1、MAC2)之上添加连接(Common Upper MAC(通用上MAC)),由此可以在该连接中统一管理流量(traffic),从而实现不同频段或不同链路之间的无缝转移。其中该通用上MAC为MAC1的上MAC1和MAC2的上MAC2的联合。
如FST这样的方法正在尝试利用当前的WLAN系统单链路设计,并且通过较少的修改来无缝地升级到多链路系统。这是一种平滑的迁移步骤,具有较少的设计工作量和开发风险。
然而,这种方法的效率没有得到优化,并且有改进的余地。
发明内容
有鉴于此,本公开提出了一种数据发送方法、数据发送设备、多链路系统和存储介质。
根据本公开的一个方面,提供一种数据发送方法,应用于第一设备,其中在所述第一设备与第二设备之间存在多个链路,所述方法包括:针对要向所述第二设备发送的数据,分别在所述多个链路中 确定可用链路;以及根据所述多个链路的发送权竞争结果来发送所述数据。
对于上述方法,在一种可能的实现方式中,在分别在所述多个链路中确定可用链路之后,所述方法还包括:将所述数据分别添加到针对该数据的可用链路的发送队列;所述方法中,若所述数据已被发送,则:在所述多个链路的一个链路中被发送的数据存在于其它链路的发送队列中的情况下,从所述其它链路的发送队列中删除该数据。
对于上述方法,在一种可能的实现方式中,根据所述多个链路的发送权竞争结果来发送所述数据,包括:在所述多个链路中的一个链路获得发送权的情况下,在该一个链路中发送所述数据,并删除存在于所述多个链路的其它链路中的发送队列中的该数据。
对于上述方法,在一种可能的实现方式中,在根据所述多个链路的发送权竞争结果来发送所述数据之前,所述方法还包括:在所述多个链路中应用时隙偏移技术。
对于上述方法,在一种可能的实现方式中,在所述多个链路中应用时隙偏移技术,包括:根据所述多个链路的时隙偏移来确定获得发送所述数据的发送权的链路。
对于上述方法,在一种可能的实现方式中,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
对于上述方法,在一种可能的实现方式中,根据所述多个链路的发送权竞争结果来发送所述数据,包括:在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据。
对于上述方法,在一种可能的实现方式中,若根据所述多个链路的发送权竞争结果来发送所述数据包括在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;则:在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据。
对于上述方法,在一种可能的实现方式中,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
对于上述方法,在一种可能的实现方式中,根据所述多个链路的发送权竞争结果来发送所述数据,包括:在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送 权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
对于上述方法,在一种可能的实现方式中,若根据所述多个链路的发送权竞争结果来发送所述数据包括在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;则:在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
对于上述方法,在一种可能的实现方式中,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,包括:根据链路的优先级来确定发送该AC数据的链路;和/或,根据预定仲裁时间内的仲裁结果来确定发送该AC数据的链路;和/或,根据赢得发送权的各链路的链路负荷状况来确定发送该AC数据的链路。
对于上述方法,在一种可能的实现方式中,在所述数据在所确定的链路中发送失败的情况下,在所确定的该链路中再次发送所述数据;和/或,所述第一设备是接入点AP,并且所述第二设备是站点STA,或者所述第一设备是站点STA,并且所述第二设备是接入点AP。
根据本公开的另一方面,提供一种数据发送设备,其中在所述数据发送设备与第二设备之间存在多个链路,所述数据发送设备包括:确定模块,用于针对要向所述第二设备发送的数据,分别在所述多个链路中确定可用链路;以及发送模块,用于根据所述多个链路的发送权竞争结果来发送所述数据。
对于上述数据发送设备,在一种可能的实现方式中,所述数据发送设备还包括:添加模块,用于将所述数据分别添加到针对该数据的可用链路的发送队列;所述发送模块中,若所述数据已发送,则:在所述多个链路的一个链路中被发送的数据存在于其它链路的发送队列中的情况下,从所述其它链路的发送队列中删除该数据。
对于上述数据发送设备,在一种可能的实现方式中,所述发送模块用于:在所述多个链路中的一个链路获得发送权的情况下,在该一个链路中发送所述数据,并删除存在于所述多个链路的其它链路中的发送队列中的该数据。
对于上述数据发送设备,在一种可能的实现方式中,还包括:应用模块,用于在所述多个链路中应用时隙偏移技术。
对于上述数据发送设备,在一种可能的实现方式中,所述应用模块用于:根据所述多个链路的时隙偏移来确定获得发送所述数据的发送权的链路。
对于上述数据发送设备,在一种可能的实现方式中,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
对于上述数据发送设备,在一种可能的实现方式中,所述发送模块用于:在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据。对于上述数据发送设备,在一种可能的实现方式中,若所述发送设备用于在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;则:所述发送设备在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,具体使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据。
对于上述数据发送设备,在一种可能的实现方式中,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。对于上述数据发送设备,在一种可能的实现方式中,在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
对于上述数据发送设备,在一种可能的实现方式中,若所述发送模块用于在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;则:所述发送模块在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,具体使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
对于上述数据发送设备,在一种可能的实现方式中,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,包括:根据链路的优先级来确定发送该AC数据的链路;和/或,根据预定仲裁时间内的仲裁结果来确定发送该AC数据的链路;和/或,根据赢得发送权的各链路的链路负荷状况来确定发送该AC数据的链路。
对于上述数据发送设备,在一种可能的实现方式中,在所述数据在所确定的链路中发送失败的情况下,所述发送模块在所确定的该链路中再次发送所述数据;和/或,所述数据发送设备是接入点AP,并且所述第二设备是站点STA,或者所述数据发送设备是站点STA,并且所述第二设备是接入点AP。
根据本公开的又一方面,提供一种多链路系统,所述多链路系统包括第一设备和第二设备,其中在所述第一设备和第二设备之间存在多个链路,所述第一设备包括上述的数据发送设备。
根据本公开的又一方面,提供一种数据发送设备,包括:处理器;用于存储处理器可执行指令的存储器;其中,所述处理器被配置执行上述的数据发送方法。
根据本公开的又一方面,提供一种非易失性计算机可读存储介质,其上存储有计算机程序指令,所述计算机程序指令被处理器执行时实现上述的数据发送方法。
根据本公开实施例的数据发送方法、数据发送设备、多链路系统和存储介质,可以不预先为要发送的各数据(例如AC(Acess Category,接入类别)数据)分配链路,而是将各数据添加至针对该数据的可用链路的发送队列中。然后,根据链路的发送权竞争结果来发送数据,并且在某一链路中发送了数据之后,将该数据从其所存在的其它链路的发送队列中删除。这样,根据本公开的数据发送方法、数据发送设备、多链路系统和存储介质,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路,由此提高数据发送效率。
根据下面参考附图对示例性实施例的详细说明,本公开的其它特征及方面将变得清楚。
附图说明
包含在说明书中并且构成说明书的一部分的附图与说明书一起示出了本公开的示例性实施例、特征和方面,并且用于解释本公开的原理。
图1示出FST概念的数据发送处理的示意图。
图2示出根据本公开一实施例的数据发送方法的流程图。
图3示出根据本公开实施例的数据发送方法的示例的图。
图4示出根据本公开实施例的数据发送方法的另一示例的图。
图5示出根据本公开实施例的数据发送方法的又一示例的图。
图6示出根据本公开实施例的数据发送方法的又一示例的图。
图7示出根据本公开实施例的数据发送方法的又一示例的图。
图8示出根据本公开实施例的数据发送方法的又一示例的图。
图9示出根据本公开实施例的时隙偏移的设置示例的图。
图10示出根据本公开实施例的仲裁时间的设置示例的图。
图11示出根据本公开实施例的数据发送方法的又一示例的图。
图12示出根据本公开实施例的数据发送方法的又一示例的图。
图13示出根据本公开实施例的数据发送方法的又一示例的图。
图14示出根据本公开实施例的数据发送方法的又一示例的图。
图15示出根据本公开的另一实施例的数据发送设备的结构框图。
图16示出根据本公开的另一实施例的多链路系统的结构框图。
图17示出根据本公开的又一实施例的数据发送设备的硬件结构框图。
图18示出根据本公开的又一实施例的数据发送设备的硬件结构框图。
具体实施方式
以下将参考附图详细说明本公开的各种示例性实施例、特征和方面。附图中相同的附图标记表示功能相同或相似的元件。尽管在附图中示出了实施例的各种方面,但是除非特别指出,不必按比例绘制附图。
在这里专用的词“示例性”意为“用作例子、实施例或说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。
另外,为了更好的说明本公开,在下文的具体实施方式中给出了众多的具体细节。本领域技术人员应当理解,没有某些具体细节,本公开同样可以实施。在一些实例中,对于本领域技术人员熟知的方法、手段、元件和电路未作详细描述,以便于凸显本公开的主旨。
如背景技术中所述,如FST这样的方法正在尝试利用当前的WLAN系统单链路设计,并且通过较少的修改来无缝地升级到多链路系统。这是一种平滑的迁移步骤,具有较少的设计工作量和开发风险。
然而,在现有的采用这种方法的多链路系统中,在AP(Access Point,接入点)和STA(Station,站点)之间,针对要向对端发送的数据(以下也可以称为分组或数据包(packet)),预先分配链路(信道或ch或link),然后在该链路中发送数据。然而,在实际中,在针对数据分配了链路之后,该链路中可能发生拥塞,或者该链路中的实际负荷可能发生变化,也就是说,在预先分配的链路中可能无法适当发送该数据。此外,根据现有技术的数据发送方法,无法快速及时地切换链路。因此,该方法的数据发送效率不高,并且仍然存在改进的余地。
有鉴于此,本公开提供一种数据发送方法、数据发送设备、多链路系统和存储介质。在该数据发送方法中,在AP和STA之间,针对要向对端发送的数据,不是预先分配链路,而是将该数据添加到针对该数据可用的链路的发送队列中。然后,在其中一个可用链路中发送了该数据之后,将该数据从其它可用链路的发送队列中删除。由此,在本公开中,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路。例如,如果一个链路发生拥塞,则支持多个链路的数据将使用其它链路自动发送,由此提高数据发送效率。此外,例如,如果某一链路中 的负荷少(low loading),支持该链路的数据可以自动转移到该链路中来进行发送,由此数据可以自动使用负荷少的链路来进行发送,从而也可以提高数据发送效率。
以下将通过实施例来具体阐述本公开的数据发送方法、数据发送设备、多链路系统和存储介质。
图2示出根据本公开一实施例的数据发送方法的流程图。该方法可以应用于AP,也可以应用于STA。以下将主要以该方法应用于AP来进行说明。在AP和STA之间可以存在多个链路,并且各链路可以存在于2.4GHz频段(band)、5GHz频段、6GHz频段或60GHz频段中。当然,本公开的各链路也可以存在于除上述频段以外的频段中。以下将以AP和STA之间存在两个链路(例如,链路1存在于2.4GHz或5GHz频段中,而链路2存在于6GHz频段中)来进行说明。此外,通常,一个AP对应于一个或多个STA。以下将主要以一个AP对应于四个STA(STA1、STA2、STA3和STA4)来进行说明。
如图2所示,该数据发送方法主要包括以下步骤:
步骤S101、针对要向STA发送的数据,分别在多个链路中确定可用链路;
步骤S102、将数据分别添加到针对该数据的可用链路的发送队列;以及
步骤S103、根据多个链路的发送权竞争结果来发送数据,其中,在多个链路的一个链路中被发送的数据存在于其它链路的发送队列中的情况下,从该其它链路的发送队列中删除所发送的该数据。
具体而言,对于步骤S101,首先AP确定要向一个或多个STA发送的数据。例如,该数据包括AC数据(以下也称为AC分组或AC数据包)。当然,该数据也可以包括其它类型的数据。在以下示例中,主要以数据为AC数据进行说明。在一种可能的实现方式中,该AC数据包括AC_VO数据(语音数据)、AC_VI数据(视频数据)、AC_BE数据(尽力而为(Best Effort)数据)和AC_BK数据(背景数据)其中至少之一。其中,这四类数据的发送优先级顺序(链路发送权获得概率)为AC_VO>AC_VI>AC_BE>AC_BK。例如,AP可以向STA1、STA2、STA3和STA4发送数据,其中按一定的顺序向STA1和STA3发送AC_VO数据,按一定的顺序向STA4和STA2发送AC_VI数据,按一定的顺序向STA1、STA2、STA3和STA4发送AC_BE数据,以及按一定的顺序向STA4、STA3、STA2、STA1发送AC_BK数据。需要说明的是,以上介绍的AC数据的类别、AC数据的发送优先级与现有的IEEE 802.11协议的规定相同,这里不再进行具体说明。
接着,在步骤S101中,AP针对所确定的向STA发送的AC数据,在AP与STA之间的多个链路(即链路1和链路2)中确定该AC数据的可用链路。
例如,向各STA(即,STA1、STA2、STA3和STA4)发送的全部AC数据可能都支持链路1和链路2,也就是说,各STA可能都支持链路1和链路2。在这种情况下,AP将链路1和链路2确定为全部AC数据的可用链路。
又如,向STA1的AC数据可能仅支持链路1,向STA4的AC数据可能仅支持链路2,而向STA2和STA3的AC数据可能支持链路1和链路2,也就是说,STA1支持链路1,STA4支持链路2,而STA2和STA3支 持链路1和链路2。在这种情况下,针对向STA1的AC数据,确定链路1作为可用链路,针对向STA4的AC数据,确定链路2作为可用链路,以及针对向STA2和STA3的AC数据,确定链路1和链路2作为可用链路。
又如,向STA1的AC_VO数据和AC_VI数据可能仅支持链路1,而向STA1的AC_BE数据和AC_BK数据可能仅支持链路2。在这种情况下,针对向STA1的AC_VO数据和AC_VI数据,确定链路1作为可用链路,以及针对向STA1的AC_BE数据和AC_BK数据,确定链路2作为可用数据。以上仅以向STA1的AC数据的各类别作为示例进行说明,并且这同样适用于向其它STA的AC数据的各类别。
以上仅仅是确定可用链路的一些示例,但是本公开不限于此,可以根据具体情况(例如,针对诸如向各STA的AC数据和各STA的AC数据的类别等的可能情况)确定AC数据的可用链路。例如,在一实施例中,可以对向任一STA发送的任一数据(AC数据、AC分组或AC包(packet))设定不同的可用链路。
对于上述步骤S102,在确定了AC数据的可用链路之后,将该AC数据添加到针对该AC数据的可用链路的发送队列中。
具体而言,例如,在向各STA(即,STA1、STA2、STA3和STA4)发送的全部AC数据都支持链路1和链路2(也就是说,各STA都支持链路1和链路2)的情况下,AP将这些AC数据都添加到链路1和链路2的发送队列中。即,这时,该AC数据可以在链路1中被发送给各STA,也可以在链路2中被发送给各STA。
又如,在向STA1的AC数据仅支持链路1、向STA4的AC数据仅支持链路2、而向STA2和STA3的AC数据支持链路1和链路2的情况下,AP将向STA1的AC数据添加至链路1的发送队列中,将向STA4的AC数据添加到链路2的发送队列中,而将向STA2和STA3的AC数据添加到链路1和链路2的发送队列中。这样,向STA1的AC数据仅可以在链路1中被发送给STA1,向STA4的AC数据仅可以在链路2中被发送给STA2,而向STA2和STA3的AC数据可以在链路1和链路2这两者中被相应地发送给STA2和STA3。
又如,在向STA1的AC_VO数据和AC_VI数据仅支持链路1、而向STA1的AC_BE数据和AC_BK数据仅支持链路2的情况下,将向STA1的AC_VO数据和AC_VI数据仅添加到链路1的发送队列中,而将向STA1的AC_BE数据和AC_BK数据仅添加到链路2的发送队列中。这样,向STA1的AC_VO数据和AC_VI数据仅可以在链路1中被发送给STA1,而向STA1的AC_BE数据和AC_BK数据仅可以在链路2中被发送给STA1。
接着,对于上述步骤S103,在AP中,多个链路在各个时间段内都会对发送权进行竞争(Contention),然后AP根据多个链路的发送权竞争结果来选择发送从AC数据的可用链路中选择适当的链路来发送该AC数据,并且在该AC数据存在于其它链路的发送队列中的情况下,从该其它链路的发送队列中删除所发送的该AC数据。
具体而言,例如,如果在第一次发送权竞争时,在链路1中的向STA1的AC_VO数据胜出、即获得发送权,则AP在链路1中向STA1发送该AC_VO数据,并且如果该AC_VO数据存在于链路2的发送队列 中(也就是说,链路2也是该AC_VO数据的可用链路),则AP将该AC_VO从链路2的发送队列中删除。
又如,如果在第二次发送权竞争时,在链路2中的向STA4的AC_VI数据胜出、即获得发送权,则AP在链路2中向STA4发送该AC_VI数据,并且如果该AC_VI数据存在于链路1的发送队列中(也就是说,链路1也是该AC_VI数据的可用链路),则AP将该AC_VI从链路1的发送队列中删除。
同理,AP在获得发送权的链路中依次向各STA发送相应的AC数据,并且如果该AC数据存在于其它链路的发送队列中,则将该AC数据从该发送队列中删除。
需要说明是,以上说明仅是为了阐述上述数据发送方法的各步骤(即,步骤S101~S103)而列举出的具体示例,然而本公开不限于此。可以根据AP和STA之间的链路、以及AP和STA之间的待发送数据的具体情况来应用本公开的实施例的上述数据发送方法。
此外,在以上说明中,主要以AC数据作为本公开的数据的示例进行了说明,但是本公开不限于此,并且本公开中要发送的数据可以根据实际的应用场景而为其它类型的数据。
此外,在上述说明中,主要将数据从AP向STA发送来进行了说明,然而,在本公开中,上述数据发送方法同样可以应用于从STA向AP发送的数据。
此外,在上述说明中,主要以AP和STA之间存在两个链路进行了说明,然而,在本公开中,在AP和STA可以存在三个以上的链路(链路1、链路2、链路3、……),并且可以类似地应用上述数据发送方法。
此外,在上述说明中,主要以一个AP对应于四个STA进行了说明,然而,一个AP可以对应于不是四个(例如,一个、两个、三个或者五个以上的STA)。
此外,在本公开中,上述多个链路可以位于相同的频段中。例如,在存在三个链路(链路1、链路2和链路3)的情况下,链路1、链路2和链路3可以均位于2.4GHz频段中,或者链路1、链路2和链路3可以均位于5GHz频段中,或者链路1、链路2和链路3可以均位于6GHz频段中,或者链路1、链路2和链路3可以均位于60GHz频段中。此外,在本公开中,上述多个链路也可以位于不同的频段中。例如,链路1可以位于2.4GHz频段中,链路2可以位于5GHz频段中,而链路3可以位于60GHz频段中。又如,链路1和链路2可以位于2.4GHz频段中,而链路3可以位于60GHz频段中。不管多个链路位于相同的频段、还是位于不同的频段中,均可类似地应用上述数据发送方法。
由此,根据本公开实施例的数据发送方法,可以不预先为要发送的各数据分配链路,而是将各数据添加至针对该数据的可用链路的发送队列中。然后,根据链路的发送权竞争结果来发送数据,并且在某一链路中发送了数据之后,将该数据从其所存在的其它链路的发送队列中删除。这样,根据本公开的数据发送方法,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路。例如,如果一个链路发生拥塞,则支持多个链路的数据将使用其它链路自动发送,由此提高数据发送效率。此外,例如,如果某一链路中的负荷少,支持该链路的AC数据 可以自动转移到该链路中来进行发送,由此数据可以自动使用负荷少的链路来进行发送,从而也可以提高数据发送效率。
以下将通过具体示例来详细说明本公开的数据发送方法。
在以下示例中,仍然以AC数据作为本公开中的数据的示例来进行说明。然而,本领域技术人员能够知道,其它类型的数据也可以类型地应用本公开的数据发送方法。此外,以下为了方便说明,AC数据中的AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据可以分别简称为VO数据、VI数据、BE数据和BK数据,链路1(ch1)中的AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据可以分别简称为VO1数据、VI1数据、BE1数据和BK1数据,以及链路2(ch2)中的AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据分别简称为VO2数据、VI2数据、BE2数据和BK2数据。此外,对于某一链路中的AC_VO数据,按照顺序发送的AC_VO数据依次可以是AC_VO(1)、AC_VO(2)、AC_VO(3)和AC_VO(4),或者VO(1)、VO(2)、VO(3)和VO(4)。这同样适用于AC_VI数据、AC_BE数据和AC_BK数据。
图3示出根据本公开实施例的数据发送方法的示例的图。在该示例中,数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图3所示,向各个STA(即STA1、STA2、STA3和STA4)的全部AC数据(AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据)都支持链路1(ch1)和链路2(ch2)。因此,在步骤S102中,将向各个STA的全部AC数据都添加到ch1和ch2的发送队列中。此外,在图3中,VO1数据、VI2数据、VI1数据、VO2数据、BE2数据和BE1数据依次在链路的发送权竞争中胜出,即赢得链路。因此,在步骤S103中,AP向各STA发送数据的顺序如下:(1)向STA1的VO数据在ch1中发出,同时将此数据在ch2的发送队列中删除;(2)向STA4的VI数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(3)向STA2的VI数据在ch1中发出,同时将此数据在ch2的发送队列中删除;(4)向STA3的VO数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(5)向STA1的BE数据在ch2中发出,同时将此数据在ch1的发送队列中删除;以及(6)向STA2的BE数据在ch1中发出,同时将此数据在ch2的发送队列中删除。即,对于所发出的AC数据,将该AC数据(深色部分)从其它链路中的发送队列中删除。也就是说,由于在以上(1)至(6)中发出的AC数据均存在于其它链路的发送队列中,因此将这些AC数据(深色部分)依次从其它链路的发送队列中删除。
此外,在上述示例中,向各STA发送的全部AC数据都支持多个链路。然而,可能存在向某些STA的AC数据不支持特定链路的情况。
图4示出根据本公开实施例的数据发送方法的另一示例的图。在该示例中,数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图4所示,向STA1的AC数据仅支持ch1(即STA1仅支持ch1),向STA4的AC数据仅支持ch2(即STA4仅支持ch2),而向其它STA的AC数据支持ch1和ch2这两者(即STA2和STA3支持ch1和ch2这两者)。由此,在上述步骤S102中,将向STA1的AC数据仅添加到ch1的发送队列中,将向STA4的AC数据仅添加到ch2的发送队列 中,而将向STA2和STA3的AC数据添加到ch1和ch2的发送队列中。此外,如图4所示,VO1数据、VI2数据、VI1数据、VO2数据、BE2数据和BE1数据依次在链路发送权竞争中赢得链路。相应地,在步骤S103中,从AP向各STA发送AC数据的顺序如下:(1)向STA1的VO数据在ch1中发出;(2)向STA4的VI数据在ch2中发出;(3)向STA1的VI数据在ch1中发出;(4)向STA4的VO数据在ch2中发出;(5)向STA4的BE数据在ch2中发送出去;以及(6)向STA4的BE数据在ch1中发出。由于在以上(1)至(6)中发出的AC数据均不存在于其它链路的发送队列中,因此无需进行删除操作。
图5示出根据本公开实施例的数据发送方法的又一示例的图。在该示例中,数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图5所示,向STA1的AC数据仅支持ch1,而向其它STA(即STA2、STA3和STA4)的AC数据支持ch1和ch2这两者。由此,在上述步骤S102中,将向STA1的AC数据仅添加到ch1的发送队列中,而将向其它STA(即STA2、STA3和STA4)的AC数据添加到ch1和ch2的发送队列中。此外,如图5所示,VO1数据、VI2数据、VI1数据、VO2数据、BE2数据和BE1数据依次在链路发送权竞争中赢得链路。相应地,在步骤S103中,AP向各STA发送AC数据的顺序如下:(1)向STA1的VO数据在ch1中发出;(2)向STA2发送的VI数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(3)向STA1的VI数据在ch1中发出;(4)向STA3的VO数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(5)向STA2的BE数据在ch2中发出,同时将此数据在ch1的发送队列中删除;以及(6)向STA1的BE数据在ch1中发出。由于在以上(1)、(3)和(6)中发出的AC数据不存在于其它链路的发送队列中,因此无需进行删除操作。此外,由于在以上(2)、(4)和(5)中发出的AC数据存在于其它链路的发送队列中,因此将这些AC数据(深色部分)依次从其它链路中删除。
此外,在一些情况下,除了向某些STA的AC数据可能仅支持特定链路外,向某些STA的某些AC数据也有可能仅支持特定链路。
图6示出根据本公开实施例的数据发送方法的又一示例的图。在该示例中,数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图6所示,STA1仅支持ch1,向STA2的VO数据和VI数据支持ch1和ch2,向STA2的BE数据和BK数据仅支持ch2,而其它STA(即,STA3和ST4)支持ch1和ch2这两者。由此,在步骤S102中,将向STA1的AC数据仅添加到ch1的发送队列中,向STA3和ST4的AC数据添加到ch1和ch2的发送队列中,向STA2的VO数据和VI数据添加到ch1和ch2的发送队列中,而向STA2的BE数据和BK数据仅添加到ch2的发送队列中。此外,如图6所示,VO1数据、VI2数据、VI1数据、VO2数据、BE2数据和BE1数据依次在链路发送权竞争中赢得链路。相应地,在步骤S103中,AP向各STA发送AC数据的顺序如下:(1)向STA1的VO数据在ch1中发出;(2)向STA2的VI数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(3)向STA1的VI数据在ch1中发出;(4)向STA3的VO数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(5)向STA2 的BE数据在ch2中发出;以及(6)向STA1的BE数据在ch1中发出。此外,由于在(1)、(3)、(5)和(6)中发出的AC数据在其它链路中没有相应AC数据,因此无需进行删除操作而由于(2)和(4)中发出的AC数据在其它链路中存在相应AC数据,因此将这些AC数据(深色部分)从其它链路的发送队列中删除。
在上述示例中,在链路发送权竞争中,仅一个链路获得发送权。在这种情况下,根据本公开的数据发送方法,在获得发送权的链路中发送数据,并且将该数据从其存在于的其它链路的发送队列中删除。也就是说,在本公开的数据发送方法中,根据多个链路的发送权竞争结果,在多个链路中的仅一个链路获得发送权的情况下,在该一个链路中发送数据,并删除存在于多个链路的其它链路中的发送队列中的该数据。
然而,在一种可能的实现方式中,还可能存在以下情况:在链路发送权竞争中,两个以上的链路同时获得发送权。
在两个以上的链路中的不同类别的AC数据同时获得发送权。在这种情况下,分别在该两个以上的链路中发送AC数据,并删除存在于多个链路的其它链路中的发送队列中的该AC数据。
图7示出根据本公开实施例的数据发送方法的又一示例的图。该数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图7所示,向各个STA(即STA1、STA2、STA3和STA4)的全部AC数据(AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据)都支持ch1和ch2。因此,在步骤S102中,将向各个STA的全部AC数据都添加到ch1和ch2的发送队列中。此外,在图7中,在ch1中的向STA1的AC_VO数据和在ch2中的向STA4的AC_VI数据在链路发送权竞争中同时胜出,即同时赢得链路。有鉴于此,由于在不同链路中所要发送的AC数据的类别不同,因此可以同时发送这两种数据,即将向STA1的AC_VO数据在ch1中发出,并将向STA4的AC_VI数据在ch2中发出,并且对于所发出的数据,将该数据(深色部分)从其它链路的发送队列中删除。
当然,以上仅是示例,本公开不限于此。例如,可以是VO1数据和BE2数据同时赢得链路,或者BE1和BK2数据同时赢得链路,等等。对于上述示例,可以类似地应用上述数据发送方法。
此外,在上述示例中,向各STA的全部AC数据都支持ch1和ch2(对应于图3),然而向各STA的全部AC数据可以仅支持部分链路(对应于图4和5),或者某一STA的某些AC数据可以仅支持部分链路(对应于图6)。在这些情况下,同样可以应用图7中的数据发送方法。
在一种可能的实现方式中,还可能存在如下情况:不同链路中的相同类别的相同AC数据同时赢得链路。在这种情况下,在其中一个链路中发送该AC数据,并且将该AC数据从其它链路的发送队列中删除。
图8示出根据本公开实施例的数据发送方法的又一示例的图。该数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图8所示,向各个STA(即STA1、STA2、STA3和STA4)的全部AC数据(AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据)都 支持ch1和ch2。因此,在步骤S102中,将向各个STA的全部AC数据都添加到ch1和ch2的发送队列中。此外,在图8中,在ch1中的向STA4的AC_BK数据和在ch2中的向STA4的AC_BK数据在链路发送权竞争中同时胜出,即同时赢得链路。有鉴于此,由于在不同链路中所要发送的AC数据的类别相同,并且是相同的AC数据,因此可以选择其中一个链路来发出该AC数据,而从其它链路的发送队列中删除该AC数据。例如,如图8所示,AP可以在ch1中向STA4发出AC_BK数据,并且将该AC_BK数据(深色部分)从ch2的发送队列中删除。
在一种可能的实现方式中,在不同链路中的相同类别的相同AC数据同时赢得链路的情况下,可以根据以下方式至少之一来确定发送该AC数据的链路。
在第一种方式中,可以根据链路的优先级来确定发送该AC数据的链路。链路的优先级例如可以是针对各链路预先设置的。例如,可以选择优先级高的链路来发送该AC数据,并且将该AC数据从其存在于的其它链路的发送队列中删除。这样,可以根据预先针对链路各链路设置的优先级来避免这两个以上的链路同时发送相同AC数据的情况。
在第二种方式中,可以根据链路的时隙偏移(slot time shift)来确定发送该AC数据的链路。该时隙偏移可以是预先针对各链路设置的。图9示出根据本公开实施例的时隙偏移的设置示例的图。如图9所示,在各链路中,时隙的起始点彼此不同,即存在不同的时隙偏移。具体地,在图9中,在ch1、ch2、ch3和ch4中,时隙偏移的起始点的早晚顺序依次是ch1、ch2、ch3和ch4。由于时隙偏移的起始点不同,因此在各时隙内仅有一个链路能够获得发送AC数据的机会。例如,可以选择时隙偏移的起始点最早的ch1来发送该AC数据,并将该AC数据从其存在于的其它链路的发送队列中删除。这样,通过预先针对各链路设置时隙偏移,可以避免这两个以上的链路同时发送相同AC数据的情况。
在第三种方式中,可以根据预定仲裁时间(Arbitration time)内的仲裁结果来确定发送该AC数据的链路。在相同类别的相同AC数据同时赢得链路的情况下,可以在该仲裁时间内决定该AC数据在哪个链路中发出。图10示出根据本公开实施例的仲裁时间的设置示例的图。如图10所示,在AP和STA之间存在ch1、ch2、ch3和ch4四个链路,并且垂直箭头指示针对各链路设置的仲裁时间。在该仲裁时间内,AP可以决定该AC数据在哪个链路中发出,然后将该AC数据从其它链路的发送队列中删除。
在第四种方式中,还可以根据赢得发送权的各链路的链路负荷状况来确定发送该AC数据的链路。例如,可以从赢得发送权的各链路中选择负荷少的链路来发送该AC数据,并将该AC数据从其它链路的发送队列中删除。
注意,在上述数据发送方法中,可以采用上述四种方式其中之一,也可以采用上述四种方式中的多种方式的组合。
此外,在一种可能的实现方式中,还可能存在如下情况:不同链路中的相同类别的不同AC数据同时赢得链路。在这种情况下,可以分别在该两个以上的链路中发送AC数据,并删除存在于所述多个链 路的其它链路中的发送队列中的该AC数据。
图11示出根据本公开实施例的数据发送方法的又一示例的图。该数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图11所示,STA1仅支持ch1,STA4仅支持ch2,而STA2和STA3支持ch1和ch2。因此,在步骤S102中,将向STA1的AC数据添加到ch1的发送队列中,将向STA4的AC数据添加到ch1的发送队列中,而将向STA2和STA3的AC数据添加到ch1和ch2的发送队列中。此外,在图11中,在ch1中的向STA1的AC_VO数据和在ch2中的向STA4的AC_VO数据在链路发送权竞争中同时胜出,即同时赢得链路。由于在不同链路中所要发送的AC数据的类别相同,但是为不同的AC数据,因此需要按一定的顺序来在不同的链路中分别发送这些不同的AC数据,并且从其它链路的发送队列中删除该AC数据。如图11所示,由于ch1中的向STA1的AC_VO数据不存在于ch2的发送队列中,因此在发出了该AC_VO数据之后无需进行删除操作。此外,由于ch2中的向STA4的AC_VO数据不存在于ch1的发送队列中,因此在发出了该AC_VO数据之后无需进行删除操作。当然,所发出的AC数据有可能存在于其它链路中,这时应进行删除操作。
图12示出根据本公开实施例的数据发送方法的又一示例的图。该数据发送方法应用于AP,即从AP向STA发送数据。然而,该示例中的数据发送方法可以同样地应用于STA。如图12所示,STA1、STA2、STA3和STA4均支持ch1和ch2。因此,在步骤S102中,将向STA1、STA2、STA3和STA4的AC数据添加到ch1和ch2两者的发送队列中。此外,在图12中,在ch1中的AC_BK数据和在ch2中的AC_BK数据在链路发送权竞争中同时胜出,即同时赢得链路。经由仲裁在ch1中向STA4发送AC_BK数据,同时删除存在于ch2中的该AC_BK数据。此外,在ch2中向STA3发送AC_BK数据,同时删除存在于ch1中的该AC_BK数据。
在一种可能的实现方式中,在不同链路中的相同类别的不同AC数据同时赢得链路的情况下,可以根据以下方式中至少之一来依次在该两个以上的链路中发送AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
在第一种方式中,可以根据各链路的优先级来发送相同类别的不同的AC数据。链路的优先级例如可以是针对各链路预先设置的。例如,可以按照优先级从高到低来依次发送这些相同类别的不同AC数据,并依次将这些相同类别的不同的AC数据从其存在于的其它链路的发送队列中删除。
在第二种方式中,可以根据链路的时隙偏移来发送相同类别的不同的AC数据。该时隙偏移可以是预先针对各链路设置的。例如,可以根据各时隙偏移的起始点来发送相同类别的不同的AC数据。在图10中,在ch1、ch2、ch3和ch4中,时隙偏移的起始点的早晚顺序依次是ch1、ch2、ch3和ch4。由于时隙偏移的起始点不同,因此在各时隙内仅有一个链路能够获得发送AC数据的机会。这样,在这四个链路中发生相同类别的不同AC数据同时赢得链路的情况下,则例如可以按照ch1、ch2、ch3和ch4的顺序来依次发送这些相同类别的不同的AC数据,并且依次将这些相同类别的不同的AC数据从其存在于的 其它链路的发送队列中删除。
在第三种方式中,可以根据链路的仲裁时间内的仲裁结果来依次发送相同类别的不同的AC数据,并且依次将这些相同类别的不同的AC数据从其存在于的其它链路的发送队列中删除。该仲裁时间可以是预先针对各链路设置的。该仲裁时间的设置示例如图10所示。
在第四种方式中,还可以根据赢得发送权的各链路的链路负荷状况来发送相同类别的不同的AC数据。例如,可以在赢得发送权的各链路中按负荷从少到多的链路的顺序来依次发送相同类别的不同的AC数据,并依次将这些相同类别的不同的AC数据从其它链路的发送队列中删除。
在以上示例中,主要说明了将AC数据从AP向STA发送的示例。然而,本公开不限于此,并且这些示例中的数据发送方法可以同样应用于从STA向AP发送的情况、即应用于STA。以下将列举从STA向AP发送数据的几个示例。
图13示出根据本公开实施例的数据发送方法的又一示例的图。在该示例中,数据发送方法应用于STA,即从STA向AP发送数据。然而,该示例中的数据发送方法可以同样地应用于AP。STA的数据发送方法与AP的数据发送方法基本相同,但是由于AP通常为一个,STA通常为多个,因此从STA向AP发送AC数据与从AP向STA发送AC相比更简单。如图13所示,该STA支持ch1和ch2。因此,在步骤S102中,将向AP的全部AC数据添加到ch1和ch2的发送队列中。此外,如图13所示,VO1数据、VI2数据、VI1数据、VO2数据、BE2数据和BE1数据在链路发送权竞争中依次赢得链路。相应地,在步骤S103中,从STA向AP发送AC数据的顺序如下:(1)向AP的VO数据在ch1中发出,同时将此数据在ch2的发送队列中删除;(2)向AP的VI数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(3)向AP的VI数据在ch1中发出,同时将此数据在ch2的发送队列中删除;(4)向AP的VO数据在ch2中发出,同时将此数据在ch1的发送队列中删除;(5)向AP的BE数据在ch2中发出,同时将此数据在ch1的发送队列中删除;以及(6)向AP的BE数据在ch1中发出,同时将此数据在ch2的发送队列中删除。由于在以上的(1)至(6)中发出的AC数据存在于其它链路的发送队列中,因此依次将这些AC数据从其它链路的发送队列中删除。
图14示出根据本公开实施例的数据发送方法的又一示例的图。在该示例中,数据发送方法应用于STA,即从STA向AP发送AC数据。然而,该示例中的数据发送方法可以同样地应用于AP。如图14所示,向AP的AC_VO数据、AC_BE数据以及AC_BK数据支持ch1和ch2,向AP的AC_VI(1)数据支持ch1和ch2,向AP的AC_VI(2)数据仅支持ch1,而向AP的AC_VI(3)数据仅支持ch2。因此,在步骤S102中,将向AP的AC_VO数据、AC_BE数据、AC_BK数据以及AC_VI(1)数据添加到ch1和ch2,将向AP的AC_VI(2)数据仅添加到ch1,而将AC_VI(3)数据仅添加到ch2。由此,如图14所示,根据链路发送权竞争结果,从STA向AP发送AC数据的顺序如下:(1)向AP的AC_VO(1)数据在ch1中发出,同时将此数据在ch2的发送队列中删除;(2)向AP的AC_VI(1)在ch2中发出,同时将此数据在ch1的发送队列中删除;(3)向AP的AC_VI(2)在ch1中发出;(4)向AP的AC_VO(2)在ch2中发出,同时将此数据在ch1的发送队列 中删除;(5)向AP的AC_BE(1)数据在ch2中发出,同时将此数据在ch1的发送队列中删除;以及(6)向AP的AC_BE(2)数据在ch1发出,同时将此数据在ch2的发送队列中删除。由于在以上的(1)、(2)、(4)、(5)和(6)中发出的AC数据存在于其它链路的发送队列中,因此将这些AC数据从其存在于的其它链路的发送队列中删除,而由于在以上的(3)中发出的AC数据没有存在于其它链路的发送队列中,因此无需进行删除操作。
此外,在一种可能的实现方式中,在上述步骤S103中,可以根据多个链路的发送权竞争结果以及AC数据的可用链路的负荷状况或拥塞状况来从该可用链路中自动选择要发送AC数据的链路。
具体而言,例如,如果根据多个链路的发送权竞争结果,ch1中的AC数据赢得链路,并且ch1的负荷状况良好(即,负荷正常或较少),则可以在ch1发送该AC数据。然而,如果ch1的负荷状况较差(即负荷较高),则在该AC数据存在于其它链路(例如ch2)中的情况下,可以选择ch2来发送该AC数据。此外,如果ch1运行正常(即没有发生拥塞),则通常选择在ch1发送该AC数据。如果ch1运行异常(发生拥塞),则在在该AC数据存在于其它链路(例如ch2)中的情况下,可以选择ch2来发送该AC数据。
此外,在一种可能的实现方式中,出于简单性和兼容性的考虑,在AC数据在所确定的链路中发送失败的情况下,通常可以在所确定的该链路中再次发生该AC数据,即重试(硬件重试)通常仅应用于之前的链路。例如,向STA1的AC_VO数据支持链路1、2、3和4。如果链路2获得发送权,则在链路2中发送该AC_VO数据,并将该AC_VO数据从其它链路中删除。在这种情况下,如果该AC_VO数据在链路2中发送失败,则通常仅在链路2中进行再次发送(重试)。当然,如果在重试达到预定次数仍然发生失败的情况下,可以重新选择链路进行发送。
此外,出于简单性和兼容性的考虑,如现有的协议那样,各个链路独立地保持其加密密钥。具体而言,如果不同链路的BSSID(Basic Service Set Identifier,基本服务集标识符)不同,则加密密钥对于不同的链路而言是不同的。另一方面,如果所有的链路的BSSID相同,则对于所有链路的加密密钥都相同,但加密密钥中的PN(Production Number,生产编号)号对于不同的链路是不同的。各个链路的加解密方式与现有协议相同,这里不再赘述。由此,根据本公开实施例的数据发送方法,可以不预先为要发送的各数据分配链路,而是将各数据添加至针对该数据的可用链路的发送队列中。然后,根据链路的发送权竞争结果来发送数据,并且在某一链路中发送了数据之后,将该数据从其所存在的其它链路的发送队列中删除。这样,根据本公开的数据发送方法,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路,由此提高数据发送效率。
本公开的数据发送方法并不局限于上述实施例,在其它实施例中,数据发送方法可以应用于AP、STA或其它类型的第一设备,在第一设备与第二设备之间可以存在多个链路,该数据发送方法主要包括以下步骤:
针对要向第二设备发送的数据,分别在所述多个链路中确定可用链路;以及
根据多个链路的发送权竞争结果来发送数据。
具体而言,该数据包括AC数据,AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
在一种可能的实现方式中,根据多个链路的发送权竞争结果来发送数据,可以包括:
在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据。
在一种可能的实现方式中,根据多个链路的发送权竞争结果来发送数据,可以包括:
在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据。具体地,可以在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,至于仲裁的具体方式,参见上述实施例的数据发送方法在不同链路中的相同类别的相同AC数据同时赢得链路的情况下,确定发送该AC数据的链路的四种方式,这里不再赘述。
在一种可能的实现方式中,根据多个链路的发送权竞争结果来发送数据,可以包括:
在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据。
该数据发送方法同样可以不预先为要发送的各数据分配链路,而是先确定该数据的可用链路,然后,根据链路的发送权竞争结果来发送数据。其可以像前一方法实施例一样,在确定了可用链路之后将该数据添加到可用链路的发送队列中,并且在某一链路中发送了数据之后,将该数据从其所存在的其它链路的发送队列中删除;也可以省去对链路发送队列内数据的增加和删除,而采用其它方式记录或管理各链路要发送哪些数据。这样,根据本公开的数据发送方法,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路,由此提高数据发送效率。
图15示出根据本公开的另一实施例的数据发送设备的结构框图。其中,在所述数据发送设备200与第二设备之间存在多个链路。如图15所示,数据发送设备200包括:确定模块201,用于针对要向所述第二设备发送的数据,分别在所述多个链路中确定可用链路;添加模块202,用于将所述数据分别添加到针对该数据的可用链路的发送队列;以及发送模块203,用于根据所述多个链路的发送权竞争结果来发送所述数据,其中,在所述多个链路的一个链路中被发送的数据存在于其它链路的发送队列中的情况下,从所述其它链路的发送队列中删除该数据。
本实施例的数据发送设备200可以用于执行上述实施例中所阐述的数据发送方法。上述数据发送方法的具体流程请参见上述实施例的详细阐述。
在一种可能的实现方式中,所述发送模块203可以用于:在所述多个链路中的一个链路获得发送 权的情况下,在该一个链路中发送所述数据,并删除存在于所述多个链路的其它链路中的发送队列中的该数据。
在一种可能的实现方式中,数据发送设备200还可以包括:应用模块204,用于在所述多个链路中应用时隙偏移技术。
在一种可能的实现方式中,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
在一种可能的实现方式中,所述发送模块203可以用于:在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
在一种可能的实现方式中,所述发送模块203可以用于:在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
在一种可能的实现方式中,所述发送模块203可以用于:在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
在一种可能的实现方式中,所述发送模块203可以用于:在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
在一种可能的实现方式中,在所述数据在所确定的链路中发送失败的情况下,所述发送模块203在所确定的该链路中再次发送所述数据。
在一种可能的实现方式中,所述数据发送设备200是接入点AP,并且所述第二设备是站点STA,或者所述数据发送设备200是站点STA,并且所述第二设备是接入点AP。
由此,根据本公开实施例的数据发送设备,可以不预先为要发送的各数据分配链路,而是将各数据添加至针对该数据的可用链路的发送队列中。然后,根据链路的发送权竞争结果来发送数据,并且在某一链路中发送了数据之后,将该数据从其所存在的其它链路的发送队列中删除。这样,根据本公开的数据发送设备,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路,由此提高数据发送效率。
本公开的数据发送设备并不局限于上述实施例,在其它实施例中,数据发送设备可以应用于AP、STA或其它类型的第一设备,在第一设备与第二设备之间可以存在多个链路,该数据发送设备包括:确定模块,用于针对要向第二设备发送的数据,分别在所述多个链路中确定可用链路;以及发送模块,用于根据多个链路的发送权竞争结果来发送数据。
在一种可能的实现方式中,该数据包括AC数据,AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
在一种可能的实现方式中,所述发送模块可以用于:在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据。
在一种可能的实现方式中,所述发送模块可以用于:在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据。具体地,可以在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,至于仲裁的具体方式,参见上述实施例的数据发送方法在不同链路中的相同类别的相同AC数据同时赢得链路的情况下,确定发送该AC数据的链路的四种方式,这里不再赘述。
在一种可能的实现方式中,所述发送模块可以用于:在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据。
该数据发送设备同样可以不预先为要发送的各数据分配链路,而是先确定该数据的可用链路,然后,根据链路的发送权竞争结果来发送数据。其可以像前一设备实施例一样,在确定了可用链路之后将该数据添加到可用链路的发送队列中,并且在某一链路中发送了数据之后,将该数据从其所存在的其它链路的发送队列中删除;也可以省去对链路发送队列内数据的增加和删除,而采用其它方式记录或管理各链路要发送哪些数据。这样,根据本公开的数据发送设备,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路,由此提高数据发送效率。
图16示出根据本公开的又一实施例的多链路系统的结构框图。如图16所示,多链路系统500包括第一设备300和第二设备400。在第一设备300和第二设备400之间存在多个链路,并且第一设备300可以为上述数据发送设备200。
本实施例的多链路系统中的第一设备或第二设备均可以用于执行上述实施例中所阐述的数据发送方法。上述数据发送方法的具体流程请参见上述实施例的详细阐述。
由此,根据本公开实施例的多链路系统,可以不预先为要发送的各数据分配链路,而是将各数据添加至针对该数据的可用链路的发送队列中。然后,根据链路的发送权竞争结果来发送数据,并且在某一链路中发送了数据之后,将该数据从其所存在的其它链路的发送队列中删除。这样,根据本公开的数据发送设备,数据可以使用所有允许的链路(可用链路)进行发送,这有利于降低延迟。此外,可以更好地动态利用各个链路,由此提高数据发送效率。
图17示出根据本公开的又一实施例的数据发送设备的硬件结构框图。参照图17,该设备1700可包括处理器901、存储有机器可执行指令的机器可读存储介质902。处理器901与机器可读存储介质902可经由系统总线903通信。并且,处理器901通过读取机器可读存储介质902中与数据发送方法相对应的 机器可执行指令以执行上文所述的数据发送方法。
本文中提到的机器可读存储介质902可以是任何电子、磁性、光学或其它物理存储装置,可以包含或存储信息,如可执行指令、数据,等等。例如,机器可读存储介质可以是:RAM(Radom Access Memory,随机存取存储器)、易失存储器、非易失性存储器、闪存、存储驱动器(如硬盘驱动器)、固态硬盘、任何类型的存储盘(如光盘、dvd等),或者类似的存储介质,或者它们的组合。
图18示出根据本公开的又一实施例的数据发送设备的硬件结构框图。例如,设备1800可以是移动电话,计算机,数字广播终端,消息收发设备,游戏控制台,平板设备,医疗设备,健身设备,个人数字助理等。
参照图18,设备1800可以包括以下一个或多个组件:处理组件802,存储器804,电源组件806,多媒体组件808,音频组件810,输入/输出(I/O)的接口812,传感器组件814,以及通信组件816。
处理组件802通常控制设备1800的整体操作,诸如与显示,电话呼叫,数据通信,相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令,以完成上述的方法的全部或部分步骤。此外,处理组件802可以包括一个或多个模块,便于处理组件802和其他组件之间的交互。例如,处理组件802可以包括多媒体模块,以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在设备1800的操作。这些数据的示例包括用于在设备1800上操作的任何应用程序或方法的指令,联系人数据,电话簿数据,消息,图片,视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(SRAM),电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),可编程只读存储器(PROM),只读存储器(ROM),磁存储器,快闪存储器,磁盘或光盘。
电源组件806为设备1800的各种组件提供电力。电源组件806可以包括电源管理系统,一个或多个电源,及其他与为设备1800生成、管理和分配电力相关联的组件。
多媒体组件808包括在所述设备1800和用户之间的提供一个输出接口的屏幕。在一些实施例中,屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板,屏幕可以被实现为触摸屏,以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界,而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中,多媒体组件808包括一个前置摄像头和/或后置摄像头。当设备1800处于操作模式,如拍摄模式或视频模式时,前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如,音频组件810包括一个麦克风(MIC),当设备1800处于操作模式,如呼叫模式、记录模式和语音识别模式时,麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中,音频组 件810还包括一个扬声器,用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口,上述外围接口模块可以是键盘,点击轮,按钮等。这些按钮可包括但不限于:主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器,用于为设备1800提供各个方面的状态评估。例如,传感器组件814可以检测到设备1800的打开/关闭状态,组件的相对定位,例如所述组件为设备1800的显示器和小键盘,传感器组件814还可以检测设备1800或设备1800的一个组件的位置改变,用户与设备1800接触的存在或不存在,设备1800方位或加速/减速和设备1800的温度变化。传感器组件814可以包括接近传感器,被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器,如CMOS或CCD图像传感器,用于在成像应用中使用。在一些实施例中,该传感器组件814还可以包括加速度传感器,陀螺仪传感器,磁传感器,压力传感器或温度传感器。
通信组件816被配置为便于设备1800和其他设备之间有线或无线方式的通信。设备1800可以接入基于通信标准的无线网络,如WiFi,2G或3G,或它们的组合。在一个示例性实施例中,通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中,所述通信组件816还包括近场通信(NFC)模块,以促进短程通信。例如,在NFC模块可基于射频识别(RFID)技术,红外数据协会(IrDA)技术,超宽带(UWB)技术,蓝牙(BT)技术和其他技术来实现。
在示例性实施例中,设备1800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现,用于执行上述方法。
在示例性实施例中,还提供了一种非易失性计算机可读存储介质,例如包括计算机程序指令的存储器804,上述计算机程序指令可由设备1800的处理器820执行以完成上述数据发送方法。
以上已经描述了本公开的各实施例,上述说明是示例性的,并非穷尽性的,并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下,对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择,旨在最好地解释各实施例的原理、实际应用或对市场中的技术的技术改进,或者使本技术领域的其它普通技术人员能理解本文披露的各实施例。

Claims (29)

  1. 一种数据发送方法,应用于第一设备,其中在所述第一设备与第二设备之间存在多个链路,其特征在于,所述方法包括:
    针对要向所述第二设备发送的数据,分别在所述多个链路中确定可用链路;以及
    根据所述多个链路的发送权竞争结果来发送所述数据。
  2. 根据权利要求1所述的方法,其特征在于,在分别在所述多个链路中确定可用链路之后,所述方法还包括:
    将所述数据分别添加到针对该数据的可用链路的发送队列;
    所述方法中,若所述数据已被发送,则:在所述多个链路的一个链路中被发送的数据存在于其它链路的发送队列中的情况下,从所述其它链路的发送队列中删除该数据。
  3. 根据权利要求2所述的方法,其特征在于,根据所述多个链路的发送权竞争结果来发送所述数据,包括:
    在所述多个链路中的一个链路获得发送权的情况下,在该一个链路中发送所述数据,并删除存在于所述多个链路的其它链路中的发送队列中的该数据。
  4. 根据权利要求1至3中至少一项所述的方法,其特征在于,在根据所述多个链路的发送权竞争结果来发送所述数据之前,所述方法还包括:
    在所述多个链路中应用时隙偏移技术。
  5. 根据权利要求4所述的方法,其特征在于,在所述多个链路中应用时隙偏移技术,包括:
    根据所述多个链路的时隙偏移来确定获得发送所述数据的发送权的链路。
  6. 根据权利要求1所述的方法,其特征在于,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
  7. 根据权利要求6所述的方法,其特征在于,根据所述多个链路的发送权竞争结果来发送所述数据,包括:
    在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据。
  8. 根据权利要求7所述的方法,其特征在于,若根据所述多个链路的发送权竞争结果来发送所述 数据包括在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;
    则:在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据。
  9. 根据权利要求2和3中至少一项所述的方法,其特征在于,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
  10. 根据权利要求9所述的方法,其特征在于,根据所述多个链路的发送权竞争结果来发送所述数据,包括:
    在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
  11. 根据权利要求10所述的方法,其特征在于,若根据所述多个链路的发送权竞争结果来发送所述数据包括在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;
    则:在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
  12. 根据权利要求8和11中至少一项所述的方法,其特征在于,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,包括:
    根据链路的优先级来确定发送该AC数据的链路;
    和/或,根据预定仲裁时间内的仲裁结果来确定发送该AC数据的链路;
    和/或,根据赢得发送权的各链路的链路负荷状况来确定发送该AC数据的链路。
  13. 根据权利要求1至12中至少一项所述的方法,其特征在于,在所述数据在所确定的链路中发送失败的情况下,在所确定的该链路中再次发送所述数据;
    和/或,所述第一设备是接入点AP,并且所述第二设备是站点STA,或者所述第一设备是站点STA,并且所述第二设备是接入点AP。
  14. 一种数据发送设备,其中在所述数据发送设备与第二设备之间存在多个链路,其特征在于,所述数据发送设备包括:
    确定模块,用于针对要向所述第二设备发送的数据,分别在所述多个链路中确定可用链路;以及
    发送模块,用于根据所述多个链路的发送权竞争结果来发送所述数据。
  15. 根据权利要求14所述的数据发送设备,其特征在于,所述数据发送设备还包括:
    添加模块,用于将所述数据分别添加到针对该数据的可用链路的发送队列;
    所述发送模块中,若所述数据已发送,则:在所述多个链路的一个链路中被发送的数据存在于其它链路的发送队列中的情况下,从所述其它链路的发送队列中删除该数据。
  16. 根据权利要求15所述的数据发送设备,其特征在于,所述发送模块用于:
    在所述多个链路中的一个链路获得发送权的情况下,在该一个链路中发送所述数据,并删除存在于所述多个链路的其它链路中的发送队列中的该数据。
  17. 根据权利要求14至16中至少一项所述的数据发送设备,其特征在于,还包括:
    应用模块,用于在所述多个链路中应用时隙偏移技术。
  18. 根据权利要求17所述的数据发送设备,其特征在于,所述应用模块用于:
    根据所述多个链路的时隙偏移来确定获得发送所述数据的发送权的链路。
  19. 根据权利要求14所述的数据发送设备,其特征在于,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
  20. 根据权利要求19所述的数据发送设备,其特征在于,所述发送模块用于:
    在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据。
  21. 根据权利要求20所述的数据发送设备,其特征在于,若所述发送设备用于在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据;
    则:所述发送设备在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,具体使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据。
  22. 根据权利要求15和16中至少一项所述的数据发送设备,其特征在于,所述数据包括接入类别数据即AC数据,所述AC数据包括AC_VO数据、AC_VI数据、AC_BE数据和AC_BK数据其中至少之一。
  23. 根据权利要求22所述的数据发送设备,其特征在于,所述发送模块用于:
    在所述多个链路中的两个以上的链路中的不同类别的AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;
    和/或,在所述多个链路中的两个以上的链路中的相同类别的不同AC数据同时获得发送权的情况下,分别在该两个以上的链路中发送AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
  24. 根据权利要求23所述的数据发送设备,其特征在于,若所述发送模块用于在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据;
    则:所述发送模块在所述多个链路中的两个以上的链路中的相同类别的相同AC数据同时获得发送权的情况下,具体使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,并删除存在于所述多个链路的其它链路中的发送队列中的该AC数据。
  25. 根据权利要求21和24中至少一项所述的数据发送设备,其特征在于,使用仲裁来在该两个以上的链路中的其中一个链路中发送所述AC数据,包括:
    根据链路的优先级来确定发送该AC数据的链路;
    和/或,根据预定仲裁时间内的仲裁结果来确定发送该AC数据的链路;
    和/或,根据赢得发送权的各链路的链路负荷状况来确定发送该AC数据的链路。
  26. 根据权利要求14至25中至少一项所述的数据发送设备,其特征在于,在所述数据在所确定的链路中发送失败的情况下,所述发送模块在所确定的该链路中再次发送所述数据;
    和/或,所述数据发送设备是接入点AP,并且所述第二设备是站点STA,或者所述数据发送设备是站点STA,并且所述第二设备是接入点AP。
  27. 一种多链路系统,其特征在于,所述多链路系统包括第一设备和第二设备,其中在所述第一设备和第二设备之间存在多个链路,所述第一设备包括根据权利要求14至26中至少一项所述的数据 发送设备。
  28. 一种数据发送设备,其特征在于,包括:
    处理器;
    用于存储处理器可执行指令的存储器;
    其中,所述处理器被配置执行权利要求1至13中至少一项所述的方法。
  29. 一种非易失性计算机可读存储介质,其上存储有计算机程序指令,其特征在于,所述计算机程序指令被处理器执行时实现权利要求1至13中至少一项所述的方法。
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