WO2017054400A1 - 无线网络的接入方法和装置 - Google Patents

无线网络的接入方法和装置 Download PDF

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Publication number
WO2017054400A1
WO2017054400A1 PCT/CN2016/074588 CN2016074588W WO2017054400A1 WO 2017054400 A1 WO2017054400 A1 WO 2017054400A1 CN 2016074588 W CN2016074588 W CN 2016074588W WO 2017054400 A1 WO2017054400 A1 WO 2017054400A1
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Prior art keywords
service
access
mode
site
control information
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PCT/CN2016/074588
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English (en)
French (fr)
Inventor
杨丹
吕开颖
孙波
邢卫民
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2017054400A1 publication Critical patent/WO2017054400A1/zh
Priority to US15/939,958 priority Critical patent/US10674495B2/en
Priority to US16/889,516 priority patent/US11166270B2/en
Priority to US17/516,339 priority patent/US11838922B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/121Wireless traffic scheduling for groups of terminals or users
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/30Resource management for broadcast services
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/02Hybrid access techniques

Definitions

  • This document relates to the field of access technologies for wireless networks, and in particular, to a method and apparatus for accessing a wireless network.
  • the multi-user parallel transmission technology includes a MU-MIMO (Multi-User Multiple-Input Multiple-Output) technology, an OFDMA (Orthogonal Frequency Division Multiple Access) technology, and the like.
  • MU-MIMO distributes multiple layers of MIMO to multiple sites, using spatial multiplexing techniques to improve time and frequency utilization.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • the introduction of OFDMA technology enables multiple sites to be frequency-division multiplexed over the entire bandwidth, which can better utilize the result of frequency selection between stations to improve frequency utilization, and can reduce the proportion of competition resources overhead of packet transmission to the entire transmission, and improve the time. Utilization rate.
  • a plurality of non-AP STAs (Stations) in the WLAN simultaneously transmit data to an AP (Access Point, Access Point), which is generally referred to as uplink multi-user (UL MU) transmission, where the user is equivalent to the site.
  • the AP sends data to multiple non-AP STAs at the same time, which is called downlink multi-user (DL MU) transmission.
  • DL MU downlink multi-user
  • FIG. 1 A typical uplink and downlink multi-user transmission frame exchange sequence is shown in FIG. 1 .
  • the UL MU transmission requires the AP to perform uplink resource allocation and trigger uplink synchronization transmission, and triggers by sending a trigger frame or by carrying a trigger information field in the radio frame.
  • the trigger frame or the trigger information field carries the scheduling information of the station, such as the identification information of the station, the time and frequency resource information used by the station for uplink transmission, and the time-frequency offset calibration information of the station.
  • the station receives the trigger frame or the trigger information field, if its own identification information is carried in it. In the middle, it indicates that it is scheduled to be transmitted in this UL MU transmission. If it needs to send data, it prepares and synchronizes according to the time-frequency offset calibration information indicated by the AP, and transmits on the allocated time and frequency resources. .
  • the STA when establishing a service with an AP, the STA determines its own access mode through negotiation.
  • the related access modes are: a scheduling access mechanism, a contention access mechanism, and a hybrid mechanism of the two mechanisms.
  • the station adopts an access mode of the scheduling access mechanism.
  • the STA reports its own buffer.
  • the AP allocates resources based on the received site buffer and sends the uplink data to the site one or more times.
  • the AP schedules resources for the STA The AP can update the corresponding buffer status of the site in real time according to the scheduling information.
  • the AP does not obtain the message in real time, and may not update the corresponding buffer status of the STA in real time, resulting in inaccuracy of subsequent scheduling of the AP, or even Air conditioning will occur, resulting in wasted resources.
  • the site reports its own buffer status in real time to solve the above problem, real-time reporting of its own buffer situation will greatly increase the network load.
  • the access mode of the site changes, the established service connection needs to be cut off, and the service is established and negotiated with the AP again. This update mode is not flexible and reduces the efficiency of the MAC layer. Therefore, how to improve resource utilization and MAC layer efficiency is an urgent problem to be solved.
  • the invention provides a method and device for accessing a wireless network, and the technical problem to be solved is how to improve resource utilization and flexibility of the access method updating method.
  • the present invention provides the following technical solutions:
  • a method for accessing a wireless network comprising:
  • the access point maintains a service- or site-based service connection state with the site, and changes the service-based by negotiating with the site or sending control information to the site. Or the channel access method used by the site-based service connection.
  • the channel access manner includes:
  • Contention-based access method EDCA data transmission mode based on access point triggering or polling, uplink multi-user data transmission mode based on access point triggering or polling.
  • control information includes: information indicating a channel access manner of a service or a service type.
  • control information includes: one or more following time information using the channel access manner:
  • control information includes: a priority level or a scheduling access mode using the channel access mode.
  • control information includes at least one of the following information:
  • Service type information aggregation indication, user priority, service information response policy, and scheduling information.
  • the step of the access point maintaining the connection status of the service-based or site-based service with the site includes:
  • the parameter that the station maintains a service connection with the access point where the parameter includes a connection identification number.
  • the step of the access point changing the channel access mode used by the service-based or site-based service connection by negotiating with the site or sending control information to the site includes:
  • the change is based on Channel access method used by a service or site-based service connection; and/or,
  • Access mode information changing the channel access mode used by the service-based or site-based service connection;
  • the scheduling access mechanism is a data transmission manner based on an access point triggering or polling, and an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the step of the access point changing the channel access mode used by the service-based or site-based service connection by using the negotiation with the site includes:
  • the access point and the station perform frame interaction negotiation by establishing a service ADDTS request frame and establishing a service ADDTS response frame, and changing a channel access mode used by the service-based or site-based service connection.
  • the step of the access point changing the channel access mode used by the service-based or site-based service connection by sending control information to the site includes:
  • the access point sends the control information to the station through a public downlink broadcast message or through a unicast message.
  • the public downlink broadcast information includes: a beacon frame, a probe response frame, or a service change frame.
  • the unicast message includes: a setup service ADDTS response frame or a service change frame that carries service specification TSPEC information.
  • a method for accessing a wireless network comprising:
  • the station receives control information sent by the access point
  • the station determines the changed channel access mode according to the control information, and sends the specified service or service type data to the access point according to the changed channel access mode.
  • the step of determining, by the station, the changed channel access manner according to the control information includes:
  • the station receives the control information, where the control information includes a channel access mode permitted by a specified service or a specified service type of the site, and a mode A; after receiving the control information, the site and the The access point establishes a service, and the channel request mode of the service requesting the service is mode B, and the channel access mode of the service that the access point responds to is mode A, and the site is in the office
  • the channel access mode used by the access point to send the data is mode A; or
  • the station receives the control information, where the control information includes a channel access mode permitted by a specified service or a specified service type of the site, and a mode A; after receiving the control information, the site and the The access point establishes a service, and the station requests the channel access mode of the service to be mode B, and the channel access mode of the service that the access point responds to is mode B, and the station is in the sending station.
  • Channel access mode A or mode B used when describing the data of the service.
  • the step of determining, by the station, the changed channel access manner according to the control information includes:
  • the site When the station establishes a service with the access point, the site requests the channel access mode of the service to be mode B, and the access point responds to the control information, where the control information includes the site If the channel access mode allowed by the designated service or the specified service type is mode A, the channel access mode used by the site when transmitting the data of the service is mode A; or
  • the station When the station establishes a service with the access point, the station requests the channel access mode of the service to be mode A, and the access point responds to the control information, where the control information includes the site If the channel access mode allowed by the designated service or the specified service type is mode A, the channel access mode used by the site when transmitting the data of the service is mode A.
  • the station determines, according to the control information, a step of the changed channel access mode.
  • the steps include:
  • the station determining, by the station, that the channel access mode of the service is mode B, when the access point is established, if the access point sends the control information after the service establishment is completed, where the control information is included in the control information.
  • the channel access mode of the specified service or the specified service type of the site is mode A, and the channel access mode A or mode B used by the site when transmitting data of the service is used.
  • the mode A and the mode B are the same or different channel access mechanisms; wherein the channel access mechanism includes:
  • a hybrid mechanism of scheduling access mechanisms and uplink contention access mechanisms is provided.
  • the scheduling access mechanism includes: a data transmission manner triggered by an access point or a poll, an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the method further includes:
  • the station determines whether to enable the specified service or the specified service type according to the channel access mode allowed by the specified service or the specified service type of the site.
  • the step of determining, by the station, the changed channel access manner according to the control information includes:
  • the station receives the control information, wherein the control information includes a start delay, and the station changes a channel access mode used by the service-based or site-based service connection at a time indicated by the start-up delay.
  • the step of determining, by the station, the changed channel access manner according to the control information includes:
  • the site receives the control information, wherein the control information includes a duration, and the site is At the end of the duration, the channel access method used by the above-described service-based or site-based service connection is changed.
  • An access device for a wireless network located in an access point, including a change module, wherein
  • the change module is configured to maintain a service-based or site-based service connection status with the site in a wireless network supporting multiple channel access modes, and by negotiating with the site or sending control information to the site, Change the channel access method used by business-based or site-based service connections.
  • the channel access manner includes:
  • Contention-based access method EDCA data transmission mode based on access point triggering or polling, uplink multi-user data transmission mode based on access point triggering or polling.
  • control information includes: information indicating a channel access manner of a service or a service type.
  • control information includes: one or more following time information using the channel access manner:
  • control information includes: a priority level or a scheduling access mode using the channel access mode.
  • control information includes: at least one of the following information:
  • Service type information aggregation indication, user priority, service information response policy, and scheduling information.
  • the change module is configured to maintain a service- or site-based service connection status with the site as follows:
  • a parameter that maintains a service connection with the site wherein the parameter includes a connection identification number.
  • the change module is configured to change a channel access mode used by the service-based or site-based service connection by negotiating with the site or sending control information to the site as follows:
  • the change is based on Channel access method used by a service or site-based service connection; and/or,
  • Access mode information changing the channel access mode used by the service-based or site-based service connection;
  • the scheduling access mechanism is a data transmission manner based on an access point triggering or polling, and an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the change module is configured to change a channel access mode used by the service-based or site-based service connection by negotiating with the site as follows:
  • the channel access mode used by the service-based or site-based service connection is changed by establishing a service ADDTS request frame and performing a frame interaction negotiation with the establishment service ADDTS response frame.
  • the change module is configured to send a control letter to the station in the following manner Change the channel access method used by the service-based or site-based service connection:
  • the control information is sent to the station via a public downlink broadcast message or through a unicast message.
  • the public downlink broadcast information includes: a beacon frame, a probe response frame, or a service change frame.
  • the unicast message includes: a setup service ADDTS response frame or a service change frame that carries service specification TSPEC information.
  • An access device for a wireless network located at a site, comprising a receiving module, a determining module, and a sending module, wherein
  • the receiving module is configured to: receive control information sent by the access point;
  • the determining module is configured to: determine, according to the control information, a channel access mode after the change;
  • the sending module is configured to: send data of a service or service type specified by the site to the access point according to the changed channel access manner.
  • the determining module is configured to determine, according to the control information, a channel access manner after the change according to the following manner:
  • the control information includes a channel access mode permitted by the designated service of the site or a specified service type, and after the control information is received, a service is established with the access point, and the service is requested.
  • the channel access mode is mode B, and the channel access mode of the service that the access point responds to is mode A, and the channel access mode used when transmitting the data of the service is determined to be mode A; or
  • the control information includes a channel access mode permitted by the designated service of the site or a specified service type, and after the control information is received, a service is established with the access point, and the service is requested.
  • the channel access mode is mode B, and the channel access mode of the service that the access point responds to is mode B, and then the channel access mode A or mode B used when transmitting the data of the service is determined.
  • the determining module is configured to determine, according to the control information, a channel access manner after the change according to the following manner:
  • the channel access mode for requesting the service is mode B
  • the access point responds to the control information, where the control information includes a designated service or a specified If the channel access mode allowed by the service type is mode A, it is determined that the channel access mode used when transmitting the data of the service is mode A; or
  • the channel access mode for requesting the service is mode A
  • the access point responds to the control information, where the control information includes a specified service or designation of the site. If the channel access mode allowed by the service type is mode A, the channel access mode used when transmitting the data of the service is determined to be mode A.
  • the determining module is configured to determine, according to the control information, a channel access manner after the change according to the following manner:
  • the mode A and the mode B are the same or different channel access mechanisms; wherein the channel access mechanism includes:
  • a hybrid mechanism of scheduling access mechanisms and uplink contention access mechanisms is provided.
  • the scheduling access mechanism includes: a data transmission manner triggered by an access point or a poll, an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the device further includes a processing module:
  • the processing module is configured to: determine whether to access the wireless network where the access point is located according to a channel access manner allowed by the specified service or the specified service type of the site; and/or, The station determines whether to enable the specified service or the specified service type according to the channel access mode allowed by the specified service or the specified service type of the site.
  • the determining module is configured to determine, according to the control information, a channel access manner after the change according to the following manner:
  • the station receives the control information, wherein the control information includes a start delay, and the station changes a channel access manner used by the service-based or site-based service connection at a time indicated by the start-up delay.
  • the determining module is configured to determine, according to the control information, a channel access manner after the change according to the following manner:
  • the station receives the control information, wherein the control information includes a duration, and the station changes a channel access manner used by the service-based or site-based service connection at the end of the duration.
  • the access point used by the access point in the wireless network notifies the station to transmit data of a certain service or service type, thereby flexibly updating the situation of the saved site buffer to avoid duplication.
  • Resource scheduling which improves resource utilization.
  • FIG. 1 is a diagram showing an example of multi-user parallel transmission frame exchange in the related art
  • FIG. 2 is a flowchart of an embodiment of a method for accessing a wireless network according to the present invention
  • FIG. 3 is a schematic diagram of a transmission frame exchange according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of a transmission frame exchange according to Embodiment 2 of the present invention.
  • FIG. 5 is a structural diagram of an embodiment of an access device for a wireless network according to the present invention.
  • the present invention provides a method for accessing a wireless network, including:
  • the access point maintains a service-based or site-based service connection state with the site, and changes the above-mentioned service-based or site-based by negotiating with the site or sending control information to the site.
  • the channel access method used by the service connection is not limited to, but not limited to, Wi-Fi, Wi-Fi, Wi-Fi, Wi-Fi, Wi-Fi
  • the method provided by the present invention provides a channel access mode used by an access point in a wireless network to notify a station to transmit data of a certain service or service type, thereby flexibly updating a site buffer saved by itself to avoid Repeated resource scheduling, which improves resource utilization.
  • the channel access mode includes a contention-based access mode EDCA, an access point triggering or polling based data sending mode, and an access point triggering or polling uplink multi-user data sending mode.
  • the control information includes information indicating a channel access mode of a service or a service type.
  • the control information further includes one or more time information using the channel access mode: a period, a start delay, and a duration.
  • the control information further includes a priority level or a scheduling access mode using the channel access mode.
  • the control information further includes at least one of the following: service type information, an aggregation indication, a user priority, a service information response policy, and scheduling information.
  • control information may include information indicating a channel access mode of the service or service type, using one or more time information of the channel access mode, using the priority of the channel access mode or scheduling access.
  • One or more of the mode, the service type information, the aggregation indication, the user priority, the service information response policy, and the scheduling information may also include all.
  • the state in which the access point maintains a service-based or site-based service connection with the site refers to a parameter that the site maintains an existing service connection with the access point, where the parameter includes a connection identification number.
  • the control information used to change the channel access manner further includes:
  • the specified service or the specified service type of the site uses the access mode information of the contention access mechanism when the current channel access mode is the service or service type of the scheduling access mechanism; and/or,
  • the access mode information of the contention access mechanism is prohibited for the specified service or the specified service type of the site;
  • the scheduling access mechanism is a data transmission manner based on an access point triggering or polling, and an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the method for negotiating with the site refers to a method for performing frame interaction negotiation by establishing a service ADDTS request frame and establishing a service ADDTS response frame.
  • the control information is sent through a public downlink broadcast message or sent through a unicast message sent to the site.
  • the public downlink broadcast information is a beacon frame or a probe response frame.
  • the unicast message is an establishment service ADDTS response frame carrying the service specification TSPEC information.
  • FIG. 2 is a flowchart of an embodiment of a method for accessing a wireless network according to the present invention.
  • the method shown in Figure 2 includes:
  • Step 201 The station receives control information sent by the access point.
  • Step 202 The station determines, according to the control information, a channel access mode after the change;
  • Step 203 The station sends the data of the specified service or service type according to the changed channel access manner.
  • the channel access mode adopted by the station when receiving data of a certain service or service type enables the access point to flexibly update the saved site buffer to avoid duplication.
  • Resource scheduling which improves resource utilization.
  • the station determines, according to the control information, a channel access mode after the change, including:
  • the station receives the control information, where the control information includes a channel access mode permitted by a specified service or a specified service type of the site, and a mode A; after receiving the control information, the site and the The access point establishes a service, and the station requests the channel access mode of the service to be mode B, and the channel access mode of the service that the access point responds to is mode A, and the station is in the sending station.
  • the channel access mode used when describing the data of the service is mode A; or,
  • the station receives the control information, where the control information includes a channel access mode permitted by a specified service or a specified service type of the site, and a mode A; after receiving the control information, the site and the The access point establishes a service, and the station requests the channel access mode of the service to be mode B, and the channel access mode of the service that the access point responds to is mode B, and the station is in the sending station.
  • Channel access mode A or mode B used when describing the data of the service.
  • the station determines, according to the control information, a channel access mode after the change, including:
  • the site When the station establishes a service with the access point, the site requests the channel access mode of the service to be mode B, and the access point responds to the control information, where the control information includes the site If the channel access mode allowed by the designated service or the specified service type is mode A, the channel access mode used by the site when transmitting the data of the service is mode A; or
  • the station When the station establishes a service with the access point, the station requests the channel access mode of the service to be mode A, and the access point responds to the control information, where the control information includes the site If the channel access mode allowed by the designated service or the specified service type is mode A, the channel access mode used by the site when transmitting the data of the service is mode A.
  • the station determines, according to the control information, a channel access mode after the change, including:
  • the station determines, by the station, that the channel access mode of the service is mode B, when the access point is established, if the access point sends the control information after the service establishment is completed, where the control information is included in the control information.
  • the channel access mode used by the specified service or the specified service type of the site is mode A, and the channel access mode used by the site when transmitting data of the service is used. A or mode B.
  • the mode A and the mode B are the same or different channel access mechanisms; wherein the channel access mechanism includes:
  • a hybrid mechanism of scheduling access mechanisms and uplink contention access mechanisms is provided.
  • the scheduling access mechanism is a data transmission manner based on an access point triggering or polling, and an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the method further includes:
  • the station determines whether to enable the specified service or the specified service type according to the channel access mode allowed by the specified service or the specified service type of the site.
  • FIG. 3 is a schematic diagram of a transmission frame exchange according to Embodiment 1 of the present invention. In the schematic shown in Figure 3:
  • the AP notifies all uplink traffic or traffic classification (TCLAS) access modes to the ULOFDMA access mechanism in the locally transmitted beacon Beacon and the probe response Probe Response frame.
  • TCLAS traffic classification
  • the STA When the STA establishes a service type 1 service (Traffic Stream, TS), the STA sends an Add Traffic Stream (ADDTS) request frame to the AP, where the ADDTS request frame includes a traffic specification (TSPEC) element. And the access policy field in the service specification element is set to an enhanced distributed channel access (EDCA).
  • EDCA enhanced distributed channel access
  • the AP after receiving the ADDTS request frame, the AP responds to an ADDTS response frame, where the access policy field in the TSPEC element carried in the ADDTS response frame is set to the UL OFDMA access mechanism, and the STA is transmitting the service type.
  • the data of 1 can only use the access mode of the UL OFDMA access mechanism.
  • the AP knows that the data of the service type 1 sent by the STA can only use the access mode of the UL OFDMA access mechanism. Therefore, the AP updates the STA buffer saved by the STA every time the STA sends the uplink data of the service type 1. .
  • FIG. 4 is a schematic diagram of a transmission frame exchange according to Embodiment 2 of the present invention. In the schematic shown in Figure 4:
  • the AP notifies the access mode of multiple service types in the Beacon and Probe Response frames sent by the AP, where the notification service type 2 is the UL OFDMA access mechanism.
  • the STA When the STA establishes the service of the service type 2 with the AP, the STA sends an ADDTS request frame to the AP, where the ADDTS request frame includes the TSPEC element, and the access policy field in the TSPEC element is set to the contention-based access mode EDCA.
  • the AP After receiving the ADDTS request frame, the AP responds to the STA with an ADDTS response frame, and the access policy field in the TSPEC element carried in the ADDTS response frame is set to an EDCA access mechanism.
  • the STA may use the UL OFDMA access mechanism or the access mode of the EDCA access mechanism when transmitting the data of the service type 2.
  • the AP may track the data of the service type 2 sent by the STA, and update the STA buffer saved by the STA according to the tracking result. Situation to avoid repetitive scheduling, thereby improving resource utilization.
  • the access policy field in the TSPEC element carried by the ADDTS request frame sent by the STA is set to an EDCA-based access mode, and the AP replies to the ADDTS response frame.
  • the access policy in the response frame is set to the UL OFDMA access mechanism, and the STA can only use the UL OFDMA access mechanism when transmitting the data of the service 3.
  • the AP Since the AP knows that the data of the service type 3 sent by the STA can only use the access mode of the UL OFDMA access mechanism, the AP updates the STA buffer saved by the STA every time the STA is scheduled to send uplink data.
  • the access policy field in the TSPEC element carried by the ADDTS request frame sent by the STA is set to the access mode of the ULOFDMA access mechanism, and the AP replies to the ADDTS response.
  • the frame, and the access policy in the response frame is set to the UL OFDMA access mechanism, and the STA can only use the UL OFDMA access mechanism when transmitting the data of the service 4.
  • the AP Since the AP knows that the data of the service type 4 sent by the STA can only use the access mode of the UL OFDMA access mechanism, the AP updates the STA buffer saved by the STA every time the STA is scheduled to send uplink data.
  • the access policy field in the TSPEC element carried by the ADDTS request frame sent by the STA is set to the EDCA access mode, and the AP replies to the ADDTS response frame, and The access policy in the response frame is set to the access mode of the EDCA.
  • the AP notifies the access mode of the service 5 that the access mode of the service 5 is the UL OFDMA access mechanism, and the STA can only use the ULOFDMA access mechanism when subsequently transmitting the data of the service 5.
  • the AP Since the AP knows that the data of the service type 5 sent by the STA can only use the access mode of the UL OFDMA access mechanism, the AP updates the STA buffer saved by the STA every time the STA is scheduled to send uplink data.
  • the AP notifies the access mode of multiple service types in the Beacon and Probe Response frames sent by the AP, and the notification service type 6 is the EDCA access mechanism.
  • the STA When the STA establishes the service of the service type 6 with the AP, the STA sends an ADDTS request frame to the AP, where the frame includes the TSPEC element, and the access policy field in the element is set to the MPLS access mode as the EDCA access mechanism, and the AP After receiving the ADDTS frame, the ADDTS response frame is configured, and the access policy field in the TSPEC element carried in the frame is set to the EDCA access mechanism, and the STA can only use the EDCA access mechanism when transmitting the data of the service type 6. Access method.
  • the AP does not save the data cache of the STA buffer service type 6 because the AP can only use the access mode of the EDCA access mechanism when the data of the service type 6 sent by the STA is used. In this case, resources are not allocated to the STA, thereby improving resource utilization.
  • the AP notifies the access mode of multiple service types in the Beacon and Probe Response frames sent by the AP, and the notification service type 7 is the EDCA access mechanism.
  • the STA When the STA establishes the service of the service type 7 with the AP, the STA sends an ADDTS request frame to the AP, where the frame includes the TSPEC element, and the access policy field in the element is set to the MPLS access mode, and the AP is the EDCA access mechanism.
  • the access policy field in the TSPEC element carried by the frame After receiving the ADDTS frame, in response to an ADDTS response frame, the access policy field in the TSPEC element carried by the frame is set to the UL OFDMA access mechanism, and the STA may use the EDCA access mechanism when transmitting the data of the service type 7 or Access mode of the UL OFDMA access mechanism.
  • the AP may track the data of the service type 7 sent by the STA, and update the information saved by the STA according to the tracking result, because the AP may use the EDCA or UL OFDMA access mechanism to access the data of the service type 7 sent by the STA. STA buffer situation to avoid repeated scheduling, thereby improving resource utilization.
  • the AP notifies the access mode of multiple service types in the Beacon and Probe Response frames sent by the AP, where the notification service type 8 is the UL OFDMA access mechanism.
  • the service data of the service type 8 is directly transmitted by the AP, that is, the UL OFDMA access mechanism is used.
  • the access policy field in the TSPEC element carried by the ADDTS request frame sent by the STA is set to the access mode of the EDCA mechanism, and the AP replies to the ADDTS response frame.
  • the access policy in the response frame is set to be an access mode in which the EDCA mechanism and the scheduling access mechanism are mixed.
  • multiple sites After the service is established, multiple sites send their own uplink data buffers to the AP, and the AP sends a trigger frame to trigger multiple sites to simultaneously perform uplink OFDMA transmission to the AP.
  • the transmission efficiency is high, so the AP sends a radio frame to the STA, and the frame carries control information, indicating that the STA prohibits the data of the service 9 from being transmitted by using the EDCA mechanism.
  • the STA After receiving the control information, the STA does not send the data of the service 9 through the EDCA mechanism, but waits to receive the trigger frame from the AP, and after receiving the trigger frame, sends the service by using the access mode of the scheduling access mechanism. 9 data.
  • the STA When the STA establishes the service 10 with the AP through the ADDTS request frame and the ADDTS response frame, the STA negotiates the scheduling access mechanism used by the STA to transmit the service or the service type 10 to the UL OFDMA.
  • the AP After the service is established, the AP sends a radio frame carrying control information to notify all access modes that the access mode is the scheduling access mechanism to be allowed to adopt the EDCA mechanism.
  • the STA After receiving the control information, the STA may send data of the service or service type 10 through the EDCA mechanism.
  • the AP may track the data sent by the STA or the service type 10, and update the data according to the tracking result, because the AP may use the EDCA or UL OFDMA access mechanism to access the data sent by the STA. If the data of the STA or the service type 10 has been sent by the EDCA access mode, the AP no longer allocates uplink resources for the service or service type 10 to avoid repeated scheduling, thereby improving resources. Utilization rate.
  • STA1 sends data to STA2.
  • STA1 initiates a service flow establishment request ADDTS request frame to the AP.
  • the AP responds to the ADDTS response frame to instruct STA1 to send the service type.
  • the access mode of 11 is a scheduling access mechanism.
  • the AP sends a control information service update frame to STA1, indicating that the service type that STA1 is to send is 11
  • the EDCA access mechanism is used.
  • STA1, STA2, and AP do not cut off the existing service connection, and keep the established service connection identification number unchanged.
  • STA1 can use EDCA or the access mechanism to access STA2.
  • the method sends the data of the service type 11.
  • the STA1 is associated with the AP, and the AP notifies the STA1 to send the service in the association response frame according to its own network load status and its own capability, and can adopt the uplink multi-user data access mode triggered by the trigger frame or EDCA. Access method.
  • the AP notifies the STA1 to use the uplink multi-user data based on the trigger frame triggering by transmitting the radio frame carrying the notification access mode.
  • the AP chooses to send the radio frame carrying the notification access mode to STA2 and STA3, and informs them that they can still use the uplink multi-user data access mode triggered by the trigger frame or the EDCA connection. Into the way.
  • the STA1 After receiving the radio frame, the STA1 does not use the EDCA contention channel to send data, but waits for the AP to send the trigger frame and then uses the uplink multi-user to send data.
  • STA2 and STA3 can still use the EDCA access mode when accessing the above radio frame, or wait for the AP to trigger the uplink transmission.
  • the STA and the AP determine, by using the ADDTS request frame and the ADDTS response frame, that the access mode is the access mode of the uplink multi-user data triggered by the trigger frame or the access mode of the EDCA.
  • the AP determines that the network load of the current BSS is heavy.
  • the AP carries a start delay T1 in the beacon frame, and notifies all stations in the BSS to update their access mode to only use the trigger frame based on the T1 time after receiving the beacon.
  • the access mode of the triggered uplink multi-user data is not limited to the beacon frame.
  • the site in the BSS After receiving the beacon, the site in the BSS no longer uses the EDCA access mode, but waits for the AP to send a trigger frame that triggers uplink multi-user transmission.
  • the AP provides the access mode of the STA1 as the access mode of the uplink multi-user data triggered by the trigger frame or the access mode of the EDCA by the control information carried in the association response frame.
  • the access mode of STA2 is only the access mode of EDCA.
  • the AP may be in the control information in the association response frame (or in the control information)
  • the beacon is used to indicate the user priority level corresponding to the different access modes of the site, that is, the access mode that is allowed to be used is the access mode based on the trigger frame triggering uplink multi-user data or the EDCA access mode.
  • the EDCA parameter set used when using the EDCA access mode is SET1, which includes the transmission opportunity limit, the minimum contention window CWmin1, and the maximum contention window CWmax1; when the allowed access mode is only the EDCA access mode
  • the EDCA parameter set used by the site when using the EDCA access mode is SET2, which includes the transmission opportunity limit, the minimum contention window CWmin2, and the maximum contention window CWmax2.
  • the corresponding parameter values in SET1 and SET2 are different, that is, the transmission opportunity limits of the two are different, CWmin1 is different from CWmin2, and CWmax1 and CWmax2 are different.
  • the present invention provides an access device for a wireless network, where the device is located at an access point, and includes:
  • the change module is configured to: maintain a service-based or site-based service connection state with the site in a wireless network supporting multiple channel access modes, and change the above service-based by negotiating with the site or sending control information to the site Or the channel access method used by the site-based service connection.
  • the channel access mode includes a contention-based access mode EDCA, an access point triggering or polling based data sending mode, and an access point triggering or polling uplink multi-user data sending mode.
  • the control information includes information indicating a channel access mode of a service or a service type.
  • the control information further includes one or more time information using the channel access mode: a period, a start delay, and a duration.
  • the control information further includes a priority level or a scheduling access mode using the channel access mode.
  • the control information further includes at least one of the following: service type information, an aggregation indication, a user priority, a service information response policy, and scheduling information.
  • the state in which the access point maintains a service-based or site-based service connection with the site refers to a parameter that the site maintains an existing service connection with the access point, where the parameter includes a connection identification number.
  • the control information used to change the channel access manner further includes:
  • the specified service or the specified service type of the site uses the access mode information of the contention access mechanism when the current channel access mode is the service or service type of the scheduling access mechanism; and/or,
  • the access mode information of the contention access mechanism is prohibited for the specified service or the specified service type of the site;
  • the scheduling access mechanism is a data transmission manner based on an access point triggering or polling, and an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the device negotiated with the site refers to a device for performing frame interaction negotiation by establishing a service ADDTS request frame and establishing a service ADDTS response frame.
  • the control information is sent through a public downlink broadcast message or sent through a unicast message sent to the site.
  • the public downlink broadcast information is a beacon frame, a probe response frame, or a service change frame.
  • the unicast message is an establishment service ADDTS response frame or a service change frame carrying the service specification TSPEC information.
  • the device embodiment provided by the present invention provides a channel access mode used by an access point in a wireless network to notify a station to transmit data of a certain service or service type, thereby flexibly updating a site buffer saved by itself to avoid Repeated resource scheduling, which improves resource utilization.
  • FIG. 5 is a structural diagram of an embodiment of an access device for a wireless network according to the present invention. As shown in Figure 5, the device is located on the site side, and the device includes:
  • the receiving module 501 is configured to: receive control information sent by the access point;
  • the determining module 502 is configured to: determine, according to the control information, a channel access mode after the change;
  • the sending module 503 is configured to: send the data of the specified service or service type according to the changed channel access manner.
  • the determining module 503 is configured to:
  • the control information includes a channel access mode permitted by the designated service of the site or a specified service type, and after the control information is received, a service is established with the access point, and the service is requested.
  • the channel access mode is mode B, and the channel access mode of the service that the access point responds to is mode A, and the channel access mode used when transmitting the data of the service is determined to be mode A; or
  • the control information includes a channel access mode permitted by the designated service of the site or a specified service type, and after the control information is received, a service is established with the access point, and the service is requested.
  • the channel access mode is mode B, and the channel access mode of the service that the access point responds to is mode B, and then the channel access mode A or mode B used when transmitting the data of the service is determined.
  • the determining module 503 is configured to:
  • the channel access mode for requesting the service is mode B
  • the access point responds to the control information, where the control information includes a designated service or a specified If the channel access mode allowed by the service type is mode A, it is determined that the channel access mode used when transmitting the data of the service is mode A; or
  • the channel access mode for requesting the service is mode A
  • the access point responds to the control information, where the control information includes a specified service or designation of the site. If the channel access mode allowed by the service type is mode A, the channel access mode used when transmitting the data of the service is determined to be mode A.
  • the determining module 503 is configured to:
  • the mode A and the mode B are the same or different channel access mechanisms; wherein the channel access mechanism includes:
  • a hybrid mechanism of scheduling access mechanisms and uplink contention access mechanisms is provided.
  • the scheduling access mechanism is a data transmission manner based on an access point triggering or polling, and an uplink multi-user data transmission manner based on an access point trigger or a polling.
  • the device further comprises:
  • the processing module is configured to: determine whether to access the wireless network where the access point is located according to a channel access manner allowed by the designated service or the specified service type of the site; and/or, the site is according to the Whether the designated service or the specified service type is enabled by the specified service or the channel access mode allowed by the specified service type.
  • the device embodiment provided by the present invention the channel access mode adopted by the site when receiving data of a certain service or service type, so that the access point can flexibly update the saved site buffer to avoid duplication.
  • Resource scheduling which improves resource utilization.
  • the embodiment of the invention further discloses a computer program, comprising program instructions, when the program instruction is executed by an access point, so that the access point can perform the access method of the wireless network on any of the access point sides.
  • the embodiment of the invention also discloses a carrier carrying the computer program.
  • the embodiment of the invention further discloses a computer program, comprising program instructions, when the program instruction is executed by the station, so that the station can perform the access method of any of the above-mentioned stations on the wireless network.
  • the embodiment of the invention also discloses a carrier carrying the computer program.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any specific combination of hardware and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • each device/function module/functional unit in the above embodiment When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the access point used by the access point in the wireless network notifies the station to transmit data of a certain service or service type, thereby flexibly updating the situation of the saved site buffer to avoid duplication.
  • Resource scheduling which improves resource utilization. Therefore, the present invention has strong industrial applicability.

Abstract

一种无线网络的接入方式和装置。所述方法,包括:在支持多种信道接入方式的无线网络中,接入点保持与站点的基于业务或基于站点的业务连接状态,并通过与站点协商或者向站点发送控制信息,变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。

Description

无线网络的接入方法和装置 技术领域
本文涉及无线网络的接入技术领域,尤其涉及一种无线网络的接入方法和装置。
背景技术
目前,随着WLAN产业的不断扩大,WLAN网络负载也在不断加重,且随着用户数目的增多,密集网络场景造成WLAN网络效率明显下降,单纯提高传输速率并不能解决该问题,多用户并行传输作为解决网络效率的一种备选技术,引起了广泛关注和研究。
相关技术中,多用户并行传输技术包括MU-MIMO(Multi-UserMultiple-Input Multiple-Output,多用户多输入多输出)技术,OFDMA(Orthogonal Frequency Division Multiple Access,正交频分多址)技术等。MU-MIMO将MIMO的多层分给多个站点,利用空间复用技术提高了时间和频率的利用率。OFDMA技术的引入使得多个站点在整个带宽上频分复用,能更优地利用站点间频率选择的结果提高频率利用率,并能降低小包传输的竞争资源开销占整个传输的比例,提高时间利用率。
WLAN中的多个non-AP STA(站点,Station)同时向AP(接入点,AccessPoint)发送数据,一般称为上行多用户(uplink multi-user,UL MU)传输,其中用户等同于站点,或者,AP同时给多个non-AP STA发送数据,称之为下行多用户(downlink multi-user,DL MU)传输,典型的上下行多用户传输帧交换序列如图1所示。
UL MU传输需要AP进行上行资源分配并触发上行同步传输,通过发送触发帧或者采用在无线帧中携带触发信息域的方式触发。触发帧或者触发信息域中携带了站点的调度信息,如站点的标识信息、站点进行上行传输所使用的时间和频率资源信息、站点的时频偏校准信息等。AP发送触发帧或触发信息域之后,站点接收触发帧或触发信息域,如果自己的标识信息携带在其 中,则表示自己被调度在本次UL MU传输中,若自己有待发送数据,则进行准备,并按照AP所指示的时频偏校准信息进行同步,在所分配的时间和频率资源上进行发送。
相关技术中,STA在与AP建立业务时,通过协商确定自己的接入方式,相关的接入方式有:调度接入机制、竞争接入机制和两种机制的混合机制。在上述AP触发上行同步传输的过程中,站点采用的是调度接入机制的接入方式。其中在AP发送触发帧之前,STA会上报自己的缓冲区情况,AP会根据所收到的站点缓冲区情况进行资源分配并一次或多次调度站点发送上行数据,当AP为STA调度资源时,AP可以根据调度信息实时更新站点相应的缓冲区状态。
但如果STA在等待被AP调度的过程中采用了竞争接入机制发送数据,AP没有实时获取到该消息,可能无法实时更新该STA相应的缓冲区状态,导致AP后续调度的不准确性,甚至会出现空调度的情况,造成资源浪费。虽然站点实时上报自己的缓冲区情况可以解决上述问题,但实时上报自己的缓冲区情况会大大增加了网络负荷量。另外,站点的接入方式改变时,需要切断建立好的业务连接,再重新与AP建立业务并协商,这种更新方式并不灵活而且降低了MAC层的效率。因此,如何提高资源的利用率和MAC层效率是亟待解决的问题。
发明内容
本发明提供的一种无线网络的接入方法和装置,要解决的技术问题是如何提高资源的利用率和接入方式更新方法的灵活性。
为解决上述技术问题,本发明提供了如下技术方案:
一种无线网络的接入方法,包括:
在支持多种信道接入方式的无线网络中,接入点保持与站点的基于业务或基于站点的业务连接状态,并通过与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
可选地,所述信道接入方式包括:
基于竞争的接入方式EDCA、基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
可选地,所述控制信息包括:指示业务或业务类型的信道接入方式的信息。
可选地,所述控制信息包括:使用所述信道接入方式的如下一个或多个时间信息:
周期、启动延时、时长。
可选地,所述控制信息包括:使用所述信道接入方式的优先等级或调度接入模式。
可选地,所述控制信息包括如下信息中的至少一个:
业务类型信息、聚合指示、用户优先级、业务信息响应策略和调度信息。
可选地,所述接入点保持与站点的基于业务或基于站点的业务连接状态的步骤包括:
所述站点与接入点保持业务连接的参数,其中所述参数包括连接识别号。
可选地,所述接入点通过与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式的步骤包括:
通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制和竞争接入机制的混合接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指示在当前信道接入方式为调度接入机制的业务或业务类型时,所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指示在当前信道接入方式为调度接入机制和竞争接入机制的混合机制的接入方式时,所述站点的指定业务或者指定业务类型禁止采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;
其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
可选地,所述接入点通过与所述站点协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式的步骤包括:
所述接入点与所述站点通过建立业务ADDTS请求帧与建立业务ADDTS响应帧进行帧交互协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
可选地,所述接入点通过向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式的步骤包括:
所述接入点通过公共下行广播消息,或者通过单播消息向所述站点发送所述控制信息。
可选地,所述公共下行广播信息包括:信标帧、探测响应帧或业务变更帧。
可选地,所述单播消息包括:携带业务规范TSPEC信息的建立业务ADDTS响应帧或业务变更帧。
一种无线网络的接入方法,包括:
站点接收接入点发送的控制信息;
所述站点根据所述控制信息,确定变更后的信道接入方式,并根据变更后的信道接入方式,向所述接入点发送指定的业务或业务类型的数据。
可选地,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
所述站点接收所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,所述站点与所述接入点建立业务,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式A,则所述站点在向所述接入点发送所述数据时使用的信道接入方式为方式A;或者,
所述站点接收所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,所述站点与所述接入点建立业务,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式B,则所述站点在发送所述业务的数据时使用的信道接入方式A或方式B。
可选地,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
所述站点在与所述接入点建立业务时,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的信道接入方式为方式A;或者,
所述站点在与所述接入点建立业务时,所述站点请求所述业务的信道接入方式为方式A,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的信道接入方式为方式A。
可选地,所述站点根据所述控制信息,确定变更后的信道接入方式的步 骤包括:
所述站点在与所述接入点业务建立时协商确定所述业务的信道接入方式为方式B,如果所述接入点在业务建立完成后发送所述控制信息,其中所述控制信息中所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的所述信道接入方式A或方式B。
可选地,所述方式A和所述方式B为相同或不同的信道接入机制;其中所述信道接入机制包括:
调度接入机制;
上行竞争接入机制;
调度接入机制和上行竞争接入机制的混合机制。
可选地,所述调度接入机制包括:基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
可选地,所述方法还包括:
所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,确定是否接入所述接入点所在的无线网络;和/或,
所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,决定是否启用所述指定业务或指定业务类型。
可选地,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
所述站点接收所述控制信息,其中所述控制信息包括启动延时,所述站点在该启动延时所指示的时刻变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
可选地,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
所述站点接收所述控制信息,其中所述控制信息包括时长,所述站点在 该时长结束时变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
一种无线网络的接入装置,位于接入点中,包括变更模块,其中
所述变更模块设置成:在支持多种信道接入方式的无线网络中,保持与站点的基于业务或基于站点的业务连接状态,并通过与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
可选地,所述信道接入方式包括:
基于竞争的接入方式EDCA、基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
可选地,所述控制信息包括:指示业务或业务类型的信道接入方式的信息。
可选地,所述控制信息包括:使用所述信道接入方式的如下一个或多个时间信息:
周期、启动延时、时长。
可选地,所述控制信息包括:使用所述信道接入方式的优先等级或调度接入模式。
可选地,所述控制信息包括:如下信息中的至少一个:
业务类型信息、聚合指示、用户优先级、业务信息响应策略和调度信息。
可选地,所述变更模块设置成按照如下方式保持与站点的基于业务或基于站点的业务连接状态:
与所述站点保持业务连接的参数,其中所述参数包括连接识别号。
可选地,所述变更模块设置成按照如下方式通过与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式:
通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制和竞争接入机制的混合接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指示在当前信道接入方式为调度接入机制的业务或业务类型时,所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
通过在所述控制信息中指示在当前信道接入方式为调度接入机制和竞争接入机制的混合机制的接入方式时,所述站点的指定业务或者指定业务类型禁止采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;
其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
可选地,所述变更模块设置成按照如下方式通过与所述站点协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式:
通过建立业务ADDTS请求帧与建立业务ADDTS响应帧进行帧交互协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
可选地,所述变更模块设置成按照如下方式通过向所述站点发送控制信 息,变更基于业务的或基于站点的业务连接所使用的信道接入方式:
通过公共下行广播消息,或者通过单播消息向所述站点发送所述控制信息。
可选地,所述公共下行广播信息包括:信标帧、探测响应帧或业务变更帧。
可选地,所述单播消息包括:携带业务规范TSPEC信息的建立业务ADDTS响应帧或业务变更帧。
一种无线网络的接入装置,位于站点,包括接收模块、确定模块和发送模块,其中
所述接收模块设置成:接收接入点发送的控制信息;
所述确定模块设置成:根据所述控制信息,确定变更后的信道接入方式;
所述发送模块设置成:根据变更后的信道接入方式,向所述接入点发送所述站点指定的业务或业务类型的数据。
可选地,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,与所述接入点建立业务,请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A;或者,
所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,与所述接入点建立业务,请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式B,则确定在发送所述业务的数据时使用的信道接入方式A或方式B。
可选地,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
在站点与所述接入点建立业务时,请求所述业务的信道接入方式为方式B,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A;或者,
在站点与所述接入点建立业务时,请求所述业务的信道接入方式为方式A,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A。
可选地,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
在所述站点与所述接入点业务建立时协商确定所述业务的信道接入方式为方式B,如果所述接入点在业务建立完成后发送所述控制信息,其中所述控制信息中所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的所述信道接入方式A或方式B。
可选地,所述方式A和所述方式B为相同或不同的信道接入机制;其中所述信道接入机制包括:
调度接入机制;
上行竞争接入机制;
调度接入机制和上行竞争接入机制的混合机制。
可选地,所述调度接入机制包括:基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
可选地,所述装置还包括处理模块:
所述处理模块设置成:根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,确定是否接入所述接入点所在的无线网络;和/或, 所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,决定是否启用所述指定业务或指定业务类型。
可选地,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
接收所述控制信息,其中所述控制信息包括启动延时,所述站点在该启动延时所指示的时刻变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
可选地,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
接收所述控制信息,其中所述控制信息包括时长,所述站点在该时长结束时变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
本发明技术方案中,无线网络中接入点通知站点发送某种业务或业务类型的数据时所采用的信道接入方式,从而灵活的更新自己所保存的站点缓冲区的情况,以避免重复的资源调度,从而提高了资源利用率。
附图概述
图1为相关技术中多用户并行传输帧交换示例图;
图2为本发明提供的无线网络的接入方法实施例的流程图;
图3为本发明实施例一提供的传输帧交换示例图;
图4为本发明实施例二提供的传输帧交换示例图;
图5为本发明提供的无线网络的接入装置实施例的结构图。
本发明的较佳实施方式
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
下面将结合附图及具体实施例对本发明作进一步的详细描述。需要说明 的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
本发明提供一种无线网络的接入方法,包括:
在支持多种信道接入方式的无线网络中,接入点保持与站点的基于业务或基于站点的业务连接状态,并通过与站点协商或者向站点发送控制信息,变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
本发明提供的方法实施例,无线网络中接入点通知站点发送某种业务或业务类型的数据时所采用的信道接入方式,从而灵活的更新自己所保存的站点缓冲区的情况,以避免重复的资源调度,从而提高了资源利用率。
另外,相关技术中站点的接入方式改变时,需要切断建立好的业务连接接,再重新与AP建立业务并协商,这种更新方式并不灵活而且降低了MAC层的效率,本发明提供的方法同时也解决了上述问题。
其中,所述信道接入方式包括基于竞争的接入方式EDCA、基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
其中,所述控制信息包括指示业务或业务类型的信道接入方式的信息。
其中,所述控制信息还包括使用所述信道接入方式的一个或多个时间信息:周期、启动延时、时长。
其中,所述控制信息还包括使用所述信道接入方式的优先等级或调度接入模式。
其中,所述控制信息还包括如下至少一个信息:业务类型信息、聚合指示、用户优先级、业务信息响应策略和调度信息。
也就是说,控制信息可以包含指示业务或业务类型的信道接入方式的信息,使用所述信道接入方式的一个或多个时间信息,使用所述信道接入方式的优先等级或调度接入模式,业务类型信息、聚合指示、用户优先级、业务信息响应策略和调度信息中的一个或多个,也可以包含全部。
其中,所述接入点保持与站点的基于业务或基于站点的业务连接状态是指站点与接入点保持现有业务连接的参数,其中所述参数包括连接识别号。
其中,所述控制信息用于变更所述信道接入方式还包括:
指定所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息;和/或,
指定所述站点的指定业务或者指定业务类型是否采用调度接入机制的接入方式信息;和/或,
指定所述站点的指定业务或者指定业务类型是否采用调度接入机制和竞争接入机制的混合接入方式信息;和/或,
在当前信道接入方式为调度接入机制的业务或业务类型时,所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息;和/或,
在当前信道接入方式为调度接入机制和竞争接入机制的混合机制的接入方式时,所述站点的指定业务或者指定业务类型禁止采用竞争接入机制的接入方式信息;
其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
其中,所述与站点协商的方法是指通过建立业务ADDTS请求帧与建立业务ADDTS响应帧进行帧交互协商的方法
其中,所述控制信息是通过公共下行广播消息发送的,或者通过发送给所述站点的单播消息中发送的。
其中,所述公共下行广播信息为信标帧或探测响应帧。
其中,所述单播消息为携带业务规范TSPEC信息的建立业务ADDTS响应帧。
图2为本发明提供的无线网络的接入方法实施例的流程图。图2所示方法包括:
步骤201、站点接收接入点发送的控制信息;
步骤202、所述站点根据所述控制信息,确定变更后的信道接入方式;
步骤203、所述站点根据变更后的信道接入方式,发送所述指定的业务或业务类型的数据。
本发明提供的方法实施例,站点通过接收某种业务或业务类型的数据时所采用的信道接入方式,从而使得接入点能够灵活的更新自己所保存的站点缓冲区的情况,以避免重复的资源调度,从而提高了资源利用率。
其中,所述站点根据所述控制信息,确定变更后的信道接入方式,包括:
所述站点接收所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,所述站点与所述接入点建立业务,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的信道接入方式为方式A;或者,
所述站点接收所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,所述站点与所述接入点建立业务,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式B,则所述站点在发送所述业务的数据时使用的信道接入方式A或方式B。
其中,所述站点根据所述控制信息,确定变更后的信道接入方式,包括:
所述站点在与所述接入点建立业务时,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的信道接入方式为方式A;或者,
所述站点在与所述接入点建立业务时,所述站点请求所述业务的信道接入方式为方式A,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的信道接入方式为方式A。
其中,所述站点根据所述控制信息,确定变更后的信道接入方式,包括:
所述站点在与所述接入点业务建立时协商确定所述业务的信道接入方式为方式B,如果所述接入点在业务建立完成后发送所述控制信息,其中所述控制信息中所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的所述信道接入方式 A或方式B。
其中,所述方式A和所述方式B为相同或不同的信道接入机制;其中所述信道接入机制包括:
调度接入机制;
上行竞争接入机制;
调度接入机制和上行竞争接入机制的混合机制。
其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
其中,所述方法还包括:
所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,确定是否接入所述接入点所在的无线网络;和/或,
所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,决定是否启用所述指定业务或指定业务类型。
实施例一
图3为本发明实施例一提供的传输帧交换示例图。图3所示示意图中:
AP在本地发送的信标Beacon和探测响应Probe Response帧中通知所有的上行业务或业务类型(traffic classification,TCLAS)的接入方式为ULOFDMA接入机制。
STA在与AP建立业务类型1的业务(Traffic Stream,TS)时,STA向AP发送建立业务(Add Traffic Stream,ADDTS)请求帧,其中该ADDTS请求帧包含业务规格(traffic specification,TSPEC)元素,并该业务规格元素中的接入策略域设置为基于竞争的接入方式(enhanced distributed channelaccess,EDCA)。
如图3所示,AP在收到ADDTS请求帧后,响应一个ADDTS响应帧,其中该ADDTS响应帧携带的TSPEC元素中的接入策略域设置为UL OFDMA接入机制,则STA在发送业务类型1的数据时只能使用UL OFDMA接入机制的接入方式。
由于AP知道STA所发送的业务类型1的数据只能采用UL OFDMA接入机制的接入方式,所以AP会在每次调度STA发送业务类型1的上行数据时更新自己所保存的STA缓冲区情况。
实施例二
图4为本发明实施例二提供的传输帧交换示例图。图4所示示意图中:
AP在AP发送的Beacon和Probe Response帧中通知多种业务类型的接入方式,其中通知业务类型2为UL OFDMA接入机制;
STA在与AP建立业务类型2的业务时,STA向AP发送ADDTS请求帧,其中ADDTS请求帧包含TSPEC元素,且该TSPEC元素中的接入策略域设置为基于竞争的接入方式EDCA。
AP在收到ADDTS请求帧后,向STA响应一个ADDTS响应帧,该ADDTS响应帧携带的TSPEC元素中的接入策略域设置为EDCA接入机制。
STA在发送业务类型2的数据时可以使用UL OFDMA接入机制或EDCA接入机制的接入方式。
由于AP知道STA所发送的业务类型2的数据时可能会采用EDCA接入机制的接入方式,所以AP会跟踪STA发送业务类型2的数据情况,并根据跟踪结果更新自己所保存的STA缓冲区情况,以避免重复调度,从而提高资源利用率。
实施例三
STA在与AP通过ADDTS请求帧和ADDTS响应帧建立业务3时,STA所发送的ADDTS请求帧所携带的TSPEC元素中的接入策略域设置为基于EDCA的接入方式,AP回复ADDTS响应帧,且该响应帧中的接入策略设置为UL OFDMA接入机制,则STA在发送业务3的数据时只能使用UL OFDMA接入机制。
由于AP知道STA所发送的业务类型3的数据只能采用UL OFDMA接入机制的接入方式,所以AP会在每次调度STA发送上行数据时更新自己所保存的STA缓冲区情况。
实施例四
STA在与AP通过ADDTS请求帧和ADDTS响应帧建立业务4时,STA所发送的ADDTS请求帧所携带的TSPEC元素中的接入策略域设置为ULOFDMA接入机制的接入方式,AP回复ADDTS响应帧,且该响应帧中的接入策略设置为UL OFDMA接入机制,则STA在发送业务4的数据时只能使用UL OFDMA接入机制。
由于AP知道STA所发送的业务类型4的数据只能采用UL OFDMA接入机制的接入方式,所以AP会在每次调度STA发送上行数据时更新自己所保存的STA缓冲区情况。
实施例五
STA在与AP通过ADDTS请求帧和ADDTS响应帧建立业务5时,STA所发送的ADDTS请求帧所携带的TSPEC元素中的接入策略域设置为EDCA的接入方式,AP回复ADDTS响应帧,且该响应帧中的接入策略设置为EDCA的接入方式。在回复响应帧之后,AP又在beacon中通知业务5的接入方式为UL OFDMA接入机制,则STA在后续发送业务5的数据时只能使用ULOFDMA接入机制。
由于AP知道STA所发送的业务类型5的数据只能采用UL OFDMA接入机制的接入方式,所以AP会在每次调度STA发送上行数据时更新自己所保存的STA缓冲区情况。
实施例六
AP在自己发送的Beacon和Probe Response帧中通知多种业务类型的接入方式,其中通知业务类型6为EDCA接入机制。
STA在与AP建立业务类型6的业务时,STA向AP发送ADDTS请求帧,该帧包含TSPEC元素,并且该元素中的接入策略域设置为基于竞争的接入方式为EDCA接入机制,AP在收到ADDTS帧后,响应一个ADDTS响应帧,该帧携带的TSPEC元素中的接入策略域设置为EDCA接入机制,则STA在发送业务类型6的数据时只能使用EDCA接入机制的接入方式。
由于AP知道STA所发送的业务类型6的数据时只能会采用EDCA接入机制的接入方式,所以AP可以不保存STA缓冲区业务类型6的数据缓存情 况,并不给STA分配资源,从而提高资源利用率。
实施例七
AP在自己发送的Beacon和Probe Response帧中通知多种业务类型的接入方式,其中通知业务类型7为EDCA接入机制。
STA在与AP建立业务类型7的业务时,STA向AP发送ADDTS请求帧,该帧包含TSPEC元素,并且该元素中的接入策略域设置为基于竞争的接入方式为EDCA接入机制,AP在收到ADDTS帧后,响应一个ADDTS响应帧,该帧携带的TSPEC元素中的接入策略域设置为UL OFDMA接入机制,则STA在发送业务类型7的数据时可以使用EDCA接入机制或UL OFDMA接入机制的接入方式。
由于AP知道STA所发送的业务类型7的数据时可能会采用EDCA或UL OFDMA接入机制的接入方式,所以AP会跟踪STA发送业务类型7的数据情况,并根据跟踪结果更新自己所保存的STA缓冲区情况,以避免重复调度,从而提高资源利用率。
实施例八
AP在自己发送的Beacon和Probe Response帧中通知多种业务类型的接入方式,其中通知业务类型8为UL OFDMA接入机制。
STA在与AP建立业务时,发送业务类型8的业务数据直接采用AP所通知的接入方式,即采用UL OFDMA接入机制发送。
实施例九
STA在与AP通过ADDTS请求帧和ADDTS响应帧建立业务9时,STA所发送的ADDTS请求帧所携带的TSPEC元素中的接入策略域设置为EDCA机制的接入方式,AP回复ADDTS响应帧,且该响应帧中的接入策略设置为EDCA机制和调度接入机制混合的接入方式。
在建立该业务之后,多个站点向AP发送自己的上行数据缓冲情况,AP将发送触发帧,以触发多个站点同时向AP进行上行OFDMA传输,从而提 高传输效率,所以AP向该STA发送一无线帧,该帧携带控制信息,指示该STA禁止使用EDCA机制的接入方式发送业务9的数据。
该STA在收到此控制信息后,不再通过EDCA机制发送业务9的数据,而是等着接收来自AP的触发帧,在接收到触发帧后,采用调度接入机制的接入方式发送业务9的数据。
实施例十
STA在与AP通过ADDTS请求帧和ADDTS响应帧建立业务10时,协商好STA发送业务或业务类型10时所采用的接入方式为UL OFDMA的调度接入机制。
在建立该业务之后,AP发送一无线帧携带控制信息通知所有接入方式为调度接入机制的上行业务均被允许采用EDCA机制的接入方式。STA在收到该控制信息后,可以通过EDCA机制发送业务或业务类型10的数据。
由于AP知道STA所发送的业务或业务类型10的数据时可能会采用EDCA或UL OFDMA接入机制的接入方式,所以AP会跟踪STA发送业务或业务类型10的数据情况,并根据跟踪结果更新自己所保存的STA缓冲区情况,如果业务或业务类型10的数据已经通过EDCA的接入方式进行了发送,则AP不再为业务或业务类型10分配上行资源,以避免重复调度,从而提高资源利用率。
实施例十一
在直链网络(tunnelled direct-link setup,TDLS)中,STA1要向STA2发送数据,在发送数据前,STA1会向AP发起业务流建立请求ADDTS请求帧,AP响应ADDTS响应帧指示STA1发送业务类型11的接入方式为调度接入机制。之后,因为当前服务集内,站点数减少,AP允许多个站点采用EDCA机制进行数据发送,则AP向STA1发送携带控制信息业务更新帧,指示STA1要发送的业务类型为11的接入方式可以使用EDCA的接入机制,则后续过程中,STA1、STA2与AP不切断现有的业务连接,并保持建立的业务连接标示号不变,STA1可以向STA2采用EDCA或调度接入机制的接入方式发送业务类型11的数据。
实施例十二
在BSS中,STA1与AP进行关联,AP根据自己的网络负载状态以及自己的能力,在关联响应帧中通知STA1给发送业务时可以采用基于触发帧触发的上行多用户数据的接入方式或者EDCA的接入方式。
随着STA2、STA3等等大量站点的加入,网络负载加重,AP通过发送携带通知接入方式的无线帧通知STA1只能采用基于触发帧触发的上行多用户数据的接入方式。
由于STA2和STA3的业务实时性要求高,所以AP选择发送携带通知接入方式的无线帧给STA2和STA3,通知它们仍可以采用基于触发帧触发的上行多用户数据的接入方式或者EDCA的接入方式。
STA1在接收到上述无线帧后不再使用EDCA竞争信道发送数据,而是等待AP发送触发帧时再采用上行多用户的方式发送数据。
STA2和STA3在接搜到上述无线帧时仍然可以采用EDCA的接入方式,或者是等着AP触发上行传输。
实施例十三
在BSS中,STA与AP通过ADDTS请求帧和ADDTS响应帧确定自己的接入方式为基于触发帧触发的上行多用户数据的接入方式或者EDCA的接入方式。
其后,AP判断当前BSS的网络负载重,AP通过beacon帧中携带一个启动延时T1,通知BSS内所有站点在收到beacon后的T1时刻将自己的接入方式更新为只采用基于触发帧触发的上行多用户数据的接入方式。
BSS内站点在收到beacon后的T1时刻后,不再采用EDCA接入方式,而是等着AP发送触发上行多用户传输的触发帧。
实施例十四
在BSS中,STA1、STA2分别与AP关联时,AP通过关联响应帧中携带控制信息给出了STA1的接入方式为基于触发帧触发的上行多用户数据的接入方式或者EDCA的接入方式。STA2的接入方式仅为EDCA的接入方式。
AP可以在上述关联响应帧中的控制信息中(或是在携带控制信息的 beacon中)指示出站点采用不同的接入方式所对应的用户优先等级,即当被允许采用的接入方式为基于触发帧触发的上行多用户数据的接入方式或者EDCA的接入方式的站点使用EDCA的接入方式时所使用的EDCA参数集为SET1,该参数集包括传输机会限制、最小竞争窗CWmin1和最大竞争窗CWmax1;当被允许采用的接入方式仅为EDCA的接入方式的站点使用EDCA的接入方式时所使用的EDCA参数集为SET2,该参数集包括传输机会限制、最小竞争窗CWmin2和最大竞争窗CWmax2。其中SET1与SET2中相对应的参数值不同,即两者的传输机会限制不同、CWmin1与CWmin2不同、CWmax1与CWmax2不同。
本发明提供一种无线网络的接入装置,该装置位于接入点测,包括:
变更模块,设置成:在支持多种信道接入方式的无线网络中,保持与站点的基于业务或基于站点的业务连接状态,并通过与站点协商或者向站点发送控制信息,变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
其中,所述信道接入方式包括基于竞争的接入方式EDCA、基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
其中,所述控制信息包括指示业务或业务类型的信道接入方式的信息。
其中,所述控制信息还包括使用所述信道接入方式的一个或多个时间信息:周期、启动延时、时长。
其中,所述控制信息还包括使用所述信道接入方式的优先等级或调度接入模式。
其中,所述控制信息还包括如下至少一个信息:业务类型信息、聚合指示、用户优先级、业务信息响应策略和调度信息。
其中,所述接入点保持与站点的基于业务或基于站点的业务连接状态是指站点与接入点保持现有业务连接的参数,其中所述参数包括连接识别号。
其中,所述控制信息用于变更所述信道接入方式还包括:
指定所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息;和/或,
指定所述站点的指定业务或者指定业务类型是否采用调度接入机制的接入方式信息;和/或,
指定所述站点的指定业务或者指定业务类型是否采用调度接入机制和竞争接入机制的混合接入方式信息;和/或,
在当前信道接入方式为调度接入机制的业务或业务类型时,所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息;和/或,
在当前信道接入方式为调度接入机制和竞争接入机制的混合机制的接入方式时,所述站点的指定业务或者指定业务类型禁止采用竞争接入机制的接入方式信息;
其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
其中,所述与站点协商的装置是指通过建立业务ADDTS请求帧与建立业务ADDTS响应帧进行帧交互协商的装置
其中,所述控制信息是通过公共下行广播消息发送的,或者通过发送给所述站点的单播消息中发送的。
其中,所述公共下行广播信息为信标帧、探测响应帧或业务变更帧。
其中,所述单播消息为携带业务规范TSPEC信息的建立业务ADDTS响应帧或业务变更帧。
本发明提供的装置实施例,无线网络中接入点通知站点发送某种业务或业务类型的数据时所采用的信道接入方式,从而灵活的更新自己所保存的站点缓冲区的情况,以避免重复的资源调度,从而提高了资源利用率。
图5为本发明提供的无线网络的接入装置实施例的结构图。如图5所示,该装置位于站点侧,该装置包括:
接收模块501,设置成:接收接入点发送的控制信息;
确定模块502,设置成:根据所述控制信息,确定变更后的信道接入方式;
发送模块503,设置成:根据变更后的信道接入方式,发送所述指定的业务或业务类型的数据。
其中,所述确定模块503设置成:
所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,与所述接入点建立业务,请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A;或者,
所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,与所述接入点建立业务,请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式B,则确定在发送所述业务的数据时使用的信道接入方式A或方式B。
其中,所述确定模块503设置成:
在站点与所述接入点建立业务时,请求所述业务的信道接入方式为方式B,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A;或者,
在站点与所述接入点建立业务时,请求所述业务的信道接入方式为方式A,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A。
其中,所述确定模块503设置成:
在所述站点与所述接入点业务建立时协商确定所述业务的信道接入方式为方式B,如果所述接入点在业务建立完成后发送所述控制信息,其中所述控制信息中所述站点的指定业务或者指定业务类型所允许采用的信道接入方 式为方式A,则确定在发送所述业务的数据时使用的所述信道接入方式A或方式B。
其中,所述方式A和所述方式B为相同或不同的信道接入机制;其中所述信道接入机制包括:
调度接入机制;
上行竞争接入机制;
调度接入机制和上行竞争接入机制的混合机制。
其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
其中,所述装置还包括:
处理模块,设置成:根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,确定是否接入所述接入点所在的无线网络;和/或,所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,决定是否启用所述指定业务或指定业务类型。
本发明提供的装置实施例,站点通过接收某种业务或业务类型的数据时所采用的信道接入方式,从而使得接入点能够灵活的更新自己所保存的站点缓冲区的情况,以避免重复的资源调度,从而提高了资源利用率。
本发明实施例还公开了一种计算机程序,包括程序指令,当该程序指令被接入点执行时,使得该接入点可执行上述任意的接入点侧的无线网络的接入方法。
本发明实施例还公开了一种载有所述的计算机程序的载体。
本发明实施例还公开了一种计算机程序,包括程序指令,当该程序指令被站点执行时,使得该站点可执行上述任意的站点侧的无线网络的接入方法。
本发明实施例还公开了一种载有所述的计算机程序的载体。
在阅读并理解了附图和详细描述后,可以明白其他方面。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现,它们可以集中在单个的计算装置上,也可以分布在多个计算装置所组成的网络上。
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。
任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求所述的保护范围为准。
工业实用性
本发明技术方案中,无线网络中接入点通知站点发送某种业务或业务类型的数据时所采用的信道接入方式,从而灵活的更新自己所保存的站点缓冲区的情况,以避免重复的资源调度,从而提高了资源利用率。因此本发明具有很强的工业实用性。

Claims (42)

  1. 一种无线网络的接入方法,包括:
    在支持多种信道接入方式的无线网络中,接入点保持与站点的基于业务或基于站点的业务连接状态,并通过与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
  2. 根据权利要求1所述的无线网络的接入方法,其中,所述信道接入方式包括:
    基于竞争的接入方式EDCA、基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
  3. 根据权利要求1所述的无线网络的接入方法,其中,所述控制信息包括:指示业务或业务类型的信道接入方式的信息。
  4. 根据权利要求1所述的无线网络的接入方法,其中,所述控制信息包括:使用所述信道接入方式的如下一个或多个时间信息:
    周期、启动延时、时长。
  5. 根据权利要求1所述的无线网络的接入方法,其中,所述控制信息包括:使用所述信道接入方式的优先等级或调度接入模式。
  6. 根据权利要求1所述的无线网络的接入方法,其中,所述控制信息包括如下信息中的至少一个:
    业务类型信息、聚合指示、用户优先级、业务信息响应策略和调度信息。
  7. 根据权利要求1所述的无线网络的接入方法,其中,所述接入点保持与站点的基于业务或基于站点的业务连接状态的步骤包括:
    所述站点与接入点保持业务连接的参数,其中所述参数包括连接识别号。
  8. 根据权利要求1所述的无线网络的接入方法,其中,所述接入点通过 与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式的步骤包括:
    通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
    通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
    通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制和竞争接入机制的混合接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
    通过在所述控制信息中指示在当前信道接入方式为调度接入机制的业务或业务类型时,所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
    通过在所述控制信息中指示在当前信道接入方式为调度接入机制和竞争接入机制的混合机制的接入方式时,所述站点的指定业务或者指定业务类型禁止采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;
    其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
  9. 根据权利要求1所述的无线网络的接入方法,其中,所述接入点通过与所述站点协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式的步骤包括:
    所述接入点与所述站点通过建立业务ADDTS请求帧与建立业务ADDTS响应帧进行帧交互协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
  10. 根据权利要求1所述的无线网络的接入方法,其中,所述接入点通过向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式的步骤包括:
    所述接入点通过公共下行广播消息,或者通过单播消息向所述站点发送所述控制信息。
  11. 根据权利要求10所述的无线网络的接入方法,其中,所述公共下行广播信息包括:信标帧、探测响应帧或业务变更帧。
  12. 根据权利要求10所述的无线网络的接入方法,其中,所述单播消息包括:携带业务规范TSPEC信息的建立业务ADDTS响应帧或业务变更帧。
  13. 一种无线网络的接入方法,包括:
    站点接收接入点发送的控制信息;
    所述站点根据所述控制信息,确定变更后的信道接入方式,并根据变更后的信道接入方式,向所述接入点发送指定的业务或业务类型的数据。
  14. 根据权利要求13所述的无线网络的接入方法,其中,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
    所述站点接收所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,所述站点与所述接入点建立业务,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式A,则所述站点在向所述接入点发送所述数据时使用的信道接入方式为方式A;或者,
    所述站点接收所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,所述站点与所述接入点建立业务,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式B,则所述站点在发送所述业务的数据时使用的信道接入方式A或方式B。
  15. 根据权利要求13所述的无线网络的接入方法,其中,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
    所述站点在与所述接入点建立业务时,所述站点请求所述业务的信道接入方式为方式B,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的信道接入方式为方式A;或者,
    所述站点在与所述接入点建立业务时,所述站点请求所述业务的信道接入方式为方式A,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的信道接入方式为方式A。
  16. 根据权利要求13所述的无线网络的接入方法,其中,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
    所述站点在与所述接入点业务建立时协商确定所述业务的信道接入方式为方式B,如果所述接入点在业务建立完成后发送所述控制信息,其中所述控制信息中所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则所述站点在发送所述业务的数据时使用的所述信道接入方式A或方式B。
  17. 根据权利要求13至16中任一所述的无线网络的接入方法,其中,所述方式A和所述方式B为相同或不同的信道接入机制;其中所述信道接入机制包括:
    调度接入机制;
    上行竞争接入机制;
    调度接入机制和上行竞争接入机制的混合机制。
  18. 根据权利要求17所述的无线网络的接入方法,其中,所述调度接入机制包括:基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
  19. 根据权利要求13所述的无线网络的接入方法,所述方法还包括:
    所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,确定是否接入所述接入点所在的无线网络;和/或,
    所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,决定是否启用所述指定业务或指定业务类型。
  20. 根据权利要求13所述的无线网络的接入方法,其中,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
    所述站点接收所述控制信息,其中所述控制信息包括启动延时,所述站点在该启动延时所指示的时刻变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
  21. 根据权利要求13所述的无线网络的接入方法,其中,所述站点根据所述控制信息,确定变更后的信道接入方式的步骤包括:
    所述站点接收所述控制信息,其中所述控制信息包括时长,所述站点在该时长结束时变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
  22. 一种无线网络的接入装置,位于接入点中,包括变更模块,其中
    所述变更模块设置成:在支持多种信道接入方式的无线网络中,保持与站点的基于业务或基于站点的业务连接状态,并通过与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
  23. 根据权利要求22所述的无线网络的接入装置,其中,所述信道接入方式包括:
    基于竞争的接入方式EDCA、基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
  24. 根据权利要求22所述的无线网络的接入装置,其中,所述控制信息包括:指示业务或业务类型的信道接入方式的信息。
  25. 根据权利要求22所述的无线网络的接入装置,其中,所述控制信息 包括:使用所述信道接入方式的如下一个或多个时间信息:
    周期、启动延时、时长。
  26. 根据权利要求22所述的无线网络的接入装置,其中,所述控制信息包括:使用所述信道接入方式的优先等级或调度接入模式。
  27. 根据权利要求22所述的无线网络的接入装置,其中,所述控制信息包括:如下信息中的至少一个:
    业务类型信息、聚合指示、用户优先级、业务信息响应策略和调度信息。
  28. 根据权利要求22所述的无线网络的接入装置,其中,所述变更模块设置成按照如下方式保持与站点的基于业务或基于站点的业务连接状态:
    与所述站点保持业务连接的参数,其中所述参数包括连接识别号。
  29. 根据权利要求22所述的无线网络的接入装置,其中,所述变更模块设置成按照如下方式通过与所述站点协商或者向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式:
    通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
    通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
    通过在所述控制信息中指定所述站点的指定业务或者指定业务类型是否采用调度接入机制和竞争接入机制的混合接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;和/或,
    通过在所述控制信息中指示在当前信道接入方式为调度接入机制的业务或业务类型时,所述站点的指定业务或者指定业务类型是否采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接 入方式;和/或,
    通过在所述控制信息中指示在当前信道接入方式为调度接入机制和竞争接入机制的混合机制的接入方式时,所述站点的指定业务或者指定业务类型禁止采用竞争接入机制的接入方式信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式;
    其中,所述调度接入机制为基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
  30. 根据权利要求22所述的无线网络的接入装置,其中,所述变更模块设置成按照如下方式通过与所述站点协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式:
    通过建立业务ADDTS请求帧与建立业务ADDTS响应帧进行帧交互协商,变更基于业务的或基于站点的业务连接所使用的信道接入方式。
  31. 根据权利要求22所述的无线网络的接入装置,其中,所述变更模块设置成按照如下方式通过向所述站点发送控制信息,变更基于业务的或基于站点的业务连接所使用的信道接入方式:
    通过公共下行广播消息,或者通过单播消息向所述站点发送所述控制信息。
  32. 根据权利要求31所述的无线网络的接入装置,其中,所述公共下行广播信息包括:信标帧、探测响应帧或业务变更帧。
  33. 根据权利要求31所述的无线网络的接入装置,其中,所述单播消息包括:携带业务规范TSPEC信息的建立业务ADDTS响应帧或业务变更帧。
  34. 一种无线网络的接入装置,位于站点,包括接收模块、确定模块和发送模块,其中
    所述接收模块设置成:接收接入点发送的控制信息;
    所述确定模块设置成:根据所述控制信息,确定变更后的信道接入方式;
    所述发送模块设置成:根据变更后的信道接入方式,向所述接入点发送所述站点指定的业务或业务类型的数据。
  35. 根据权利要求34所述的无线网络的接入装置,其中,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
    所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,与所述接入点建立业务,请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A;或者,
    所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A;在接收到所述控制信息后,与所述接入点建立业务,请求所述业务的信道接入方式为方式B,所述接入点响应的所述业务的信道接入方式为方式B,则确定在发送所述业务的数据时使用的信道接入方式A或方式B。
  36. 根据权利要求34所述的无线网络的接入装置,其中,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
    在站点与所述接入点建立业务时,请求所述业务的信道接入方式为方式B,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A;或者,
    在站点与所述接入点建立业务时,请求所述业务的信道接入方式为方式A,所述接入点响应所述控制信息,其中所述控制信息包括所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的信道接入方式为方式A。
  37. 根据权利要求34所述的无线网络的接入装置,其中,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
    在所述站点与所述接入点业务建立时协商确定所述业务的信道接入方式 为方式B,如果所述接入点在业务建立完成后发送所述控制信息,其中所述控制信息中所述站点的指定业务或者指定业务类型所允许采用的信道接入方式为方式A,则确定在发送所述业务的数据时使用的所述信道接入方式A或方式B。
  38. 根据权利要求34至37中任一所述的无线网络的接入装置,其中,所述方式A和所述方式B为相同或不同的信道接入机制;其中所述信道接入机制包括:
    调度接入机制;
    上行竞争接入机制;
    调度接入机制和上行竞争接入机制的混合机制。
  39. 根据权利要求38所述的无线网络的接入装置,其中,所述调度接入机制包括:基于接入点触发或轮询的数据发送方式、基于接入点触发或轮询的上行多用户数据发送方式。
  40. 根据权利要求34所述的无线网络的接入装置,所述装置还包括处理模块:
    所述处理模块设置成:根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,确定是否接入所述接入点所在的无线网络;和/或,所述站点根据所述站点的指定业务或者指定业务类型所允许采用的信道接入方式,决定是否启用所述指定业务或指定业务类型。
  41. 根据权利要求34所述的无线网络的接入装置,其中,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
    接收所述控制信息,其中所述控制信息包括启动延时,所述站点在该启动延时所指示的时刻变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
  42. 根据权利要求34所述的无线网络的接入装置,其中,所述确定模块设置成按照如下方式根据所述控制信息,确定变更后的信道接入方式:
    接收所述控制信息,其中所述控制信息包括时长,所述站点在该时长结束时变更上述基于业务的或基于站点的业务连接所使用的信道接入方式。
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