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WO2014090006A1 - Procédé de traitement d'informations, point d'accès, et station - Google Patents

Procédé de traitement d'informations, point d'accès, et station Download PDF

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Publication number
WO2014090006A1
WO2014090006A1 PCT/CN2013/083918 CN2013083918W WO2014090006A1 WO 2014090006 A1 WO2014090006 A1 WO 2014090006A1 CN 2013083918 W CN2013083918 W CN 2013083918W WO 2014090006 A1 WO2014090006 A1 WO 2014090006A1
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WO
WIPO (PCT)
Prior art keywords
service type
beacon frame
association request
allowed
predetermined time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2013/083918
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English (en)
Chinese (zh)
Inventor
伍天宇
禄·彼得
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Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2014090006A1 publication Critical patent/WO2014090006A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the present invention relates to the field of communications, and more particularly to an information processing method, an access point, and a station. Background technique
  • Wireless Local Area Networks In the application of Wireless Local Area Networks (“WLAN”) systems, applications such as sensors, smart grids, smart meters, or mobile data bypass have received increasing attention. In this type of application, there may be a large number of STAs in a BSS. For example, in the 802.11ah standard designed for this type of application scenario, a basic service set (Basic Server Set, called “BSS”) needs to support up to 6000 stations (Station, called "STA”). When there are a large number of STAs in the BSS, the associated delay, access delay, and packet loss rate will increase significantly. When there are delay-sensitive emergency services in the system, the quality of emergency services will be greatly affected.
  • Emergency service types may include industrial safety monitoring services, industrial automation services, health monitoring, fire alarms, other alarm services, and relay services.
  • Embodiments of the present invention provide an information processing method, an access point, and a station, which can improve service quality or reliability of an emergency service type or other specific service types.
  • an information processing method including:
  • the beacon frame is used to indicate a service type that is allowed to be associated within a predetermined time, so that the site corresponding to the service type that is allowed to be associated sends an association request within the predetermined time; Determining, when the association request is sent in a predetermined time, whether the received association request is from a site corresponding to the service type that is allowed to be associated;
  • the method further includes: delaying, when the received association request is not from a site corresponding to the service type that is allowed to be associated Responding to the received association request.
  • the determining whether the received association request is from the service type that is allowed to be associated Corresponding sites including:
  • the beacon frame is used to indicate The plurality of service types that are associated are allowed in the predetermined time, so that the site corresponding to the multiple service types that are allowed to be associated sends an association request within the predetermined time.
  • the service type that is allowed to be associated within a predetermined time includes an emergency service type.
  • an information processing method including:
  • beacon frame sent by the access point, where the beacon frame is used to indicate a service type that is allowed to be associated within a predetermined time
  • the association request is sent within the predetermined time.
  • the sending the association request in the predetermined time includes:
  • An association request is sent within the predetermined time, and a service type field in the association request indicates the at least one service type.
  • the at least one service type comprises an emergency service type.
  • an information processing method including:
  • the beacon frame including a priority parameter for indicating that the emergency service type has the highest access priority, so that the emergency service type corresponding station performs channel access according to the priority parameter.
  • the priority parameter is a backoff window.
  • an information processing method including:
  • the beacon frame including a priority parameter indicating that the emergency service type has the highest access priority
  • channel access is performed according to the priority parameter.
  • the priority parameter is a backoff window.
  • an information processing method including:
  • beacon frame Broadcasting a beacon frame, where the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, so that the station corresponding to the first service type is retained according to the data packet retention duration
  • the data packet related to the first service type or used to indicate the number of data packet retransmissions corresponding to the second service type, so that the station corresponding to the second service type is retransmitted according to the number of retransmissions of the data packet.
  • a data packet related to the second service type, or a third service type indicating that channel access is allowed in a predetermined time so that the station corresponding to the third service type performs the Channel access associated with the third service type.
  • an information processing method including:
  • beacon frame is used to indicate a data packet retention duration corresponding to the first service type, or used to indicate a number of data packet retransmissions corresponding to the second service type, or used to indicate a reservation
  • the third service type that allows channel access during the time
  • beacon frame when used to indicate a data packet retention duration corresponding to the first service type, retaining a data packet related to the first service type according to the data packet retention duration;
  • beacon frame when used to indicate the number of retransmissions of the data packet corresponding to the second service type, retransmitting the data packet related to the second service type according to the number of retransmissions of the data packet;
  • beacon frame When the beacon frame is used to indicate a third service type that allows channel access within a predetermined time, channel access related to the third service type is performed within the predetermined time.
  • an information processing method including:
  • An association request is sent to the access point, the service type field in the association request indicating that the type of service required includes an emergency service type.
  • an access point including:
  • a generating unit configured to generate a beacon frame, where the beacon frame is used to indicate a service type that is allowed to be associated within a predetermined time;
  • a broadcast unit configured to broadcast the beacon frame, so that the site corresponding to the service type allowed to be associated sends an association request within the predetermined time
  • a receiving unit configured to receive an association request sent in the predetermined time
  • a determining unit configured to determine whether the association request received by the receiving unit is from a site corresponding to the service type that is allowed to be associated;
  • the response unit is configured to preferentially respond to the received association request when the determining unit determines that the association request received by the receiving unit is from a site corresponding to the service type that is allowed to be associated.
  • the response is delayed in response to the received association request.
  • the determining unit is specifically configured to:
  • the beacon frame is used for And indicating a plurality of service types that are allowed to be associated in the predetermined time, so that the site corresponding to the multiple service types that are allowed to be associated sends an association request within the predetermined time.
  • the service type that is allowed to be associated within a predetermined time includes an emergency service type.
  • a site including:
  • a receiving unit configured to receive a beacon frame sent by the access point, where the beacon frame is used to indicate a service type that is allowed to be associated in a predetermined time;
  • a determining unit configured to determine whether the at least one service type included in the service type allowed to be associated is a service type that the station needs to serve; and one service type is a service type that the station needs to serve, and send the service type within the predetermined time Associate the request.
  • the sending unit is specifically configured to:
  • An association request is sent within the predetermined time, and a service type field in the association request indicates the at least one service type.
  • the at least one service type comprises an emergency service type.
  • an access point including: a generating unit, configured to generate a beacon frame, where the beacon frame includes a priority parameter for indicating that the emergency service type has the highest access priority;
  • a broadcast unit configured to broadcast a beacon frame, so that the emergency service type corresponding station performs channel access according to the priority parameter.
  • the priority parameter is a backoff window.
  • a site including:
  • a receiving unit configured to receive a beacon frame sent by the access point, where the beacon frame includes a priority parameter for indicating that the emergency service type has the highest access priority;
  • an access unit configured to perform channel access according to the priority parameter when the station needs to perform channel access related to the emergency service type.
  • the priority parameter is a backoff window.
  • an access point including:
  • a generating unit configured to generate a broadcast frame, where the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, or to indicate a number of data packet retransmissions corresponding to the second service type, or to indicate a predetermined time A third type of service within which channel access is allowed.
  • a broadcast unit configured to broadcast the beacon frame.
  • a site including:
  • a receiving unit configured to receive a beacon frame sent by the access point, where the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, or is used to indicate a number of data packet retransmission times corresponding to the second service type, Or a third service type indicating that channel access is allowed within a predetermined time;
  • An execution unit configured to: when the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, retain a data packet related to the first service type according to the data packet retention duration, or And when the beacon frame is used to indicate the number of retransmissions of the data packet corresponding to the second service type, retransmitting the data packet related to the second service type according to the number of retransmissions of the data packet, or used in the beacon frame
  • indicating a third service type that allows channel access within a predetermined time channel access related to the third service type is performed within the predetermined time.
  • a site comprising:
  • a determining unit configured to determine a type of service required, including an emergency service type
  • a sending unit configured to send an association request to the access point, where the service type word in the association request
  • the segment indicates the type of service required, including the type of emergency service.
  • FIG. 1 is a schematic flowchart of an information processing method according to an embodiment of the present invention.
  • FIG. 2 is a structural diagram of a service type field in a broadcast frame according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of an information processing method according to another embodiment of the present invention.
  • Figure 4a is a block diagram of an association request in accordance with an embodiment of the present invention.
  • 4b is a structural diagram of a service type field in an association request according to an embodiment of the present invention.
  • FIG. 4c is a structural diagram of a service type field in an association request according to another embodiment of the present invention.
  • 4d is a structural diagram of a service type field in an association request according to another embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of an information processing method according to another embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of an information processing method according to another embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of an information processing method according to another embodiment of the present invention.
  • FIG. 8 is a schematic flowchart of an information processing method according to another embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of an information processing method according to another embodiment of the present invention.
  • FIG. 10 is a structural diagram of a service type field in a broadcast frame according to another embodiment of the present invention.
  • 11 is a schematic block diagram of an access point in accordance with an embodiment of the present invention.
  • Figure 12 is a schematic block diagram of a station in accordance with an embodiment of the present invention.
  • FIG. 13 is a schematic block diagram of an access point according to another embodiment of the present invention.
  • Figure 14 is a schematic block diagram of a station in accordance with another embodiment of the present invention.
  • 15 is a schematic block diagram of an access point in accordance with another embodiment of the present invention.
  • Figure 16 is a schematic block diagram of a station in accordance with another embodiment of the present invention.
  • Figure 17 is a schematic block diagram of a station in accordance with another embodiment of the present invention.
  • FIG. 18 is a schematic block diagram of an access point in accordance with another embodiment of the present invention.
  • FIG. 19 is a schematic block diagram of a station in accordance with another embodiment of the present invention. detailed description
  • FIG. 1 is a schematic flowchart of an information processing method 100 according to an embodiment of the present invention. As shown in FIG. 1, the method 100 includes:
  • S110 Broadcast a beacon frame, where the beacon frame is used to indicate a service type that is allowed to be associated within a predetermined time, so that the STA corresponding to the service type that is allowed to be associated sends an association request at the predetermined time;
  • the received association request is from the STA corresponding to the service type that is allowed to be associated, the received association request is preferentially responded.
  • the AP may broadcast a beacon frame to STAs in the BSS in which it is located to indicate One or some types of services that are allowed to be associated within a predetermined time, for example, an emergency service type, such that the STA corresponding to the service type that is allowed to be associated may send an association request at the predetermined time; the AP transmits the received time within the predetermined time.
  • a predetermined time for example, an emergency service type, such that the STA corresponding to the service type that is allowed to be associated may send an association request at the predetermined time; the AP transmits the received time within the predetermined time.
  • the received association request it may be determined whether the received association request is from the STA corresponding to the service type that is allowed to be associated, and if it is from the STA corresponding to the service type that is allowed to be associated, the received association request may be preferentially responded, for example. Immediately responding to the association request, or the response time is better than the association request sent from the STA corresponding to the service type that is allowed to be associated.
  • the AP may determine whether the association request is sent at a predetermined time according to the timestamp carried in the association request, or directly determine the association request received at the predetermined time as the association request sent in the predetermined time, and the present invention The embodiment does not limit this.
  • the information processing method of the embodiment of the present invention can ensure the quality of service or reliability of the emergency service type or other specific service types.
  • the method 100 may further include:
  • the response is delayed in response to the received association request.
  • the STAs may send an association request within the predetermined time, if the AP determines that the association request is not from the STA corresponding to the service type that is allowed to be associated.
  • the association request may be delayed, for example, responding to the association request at a time other than the predetermined time, or the association sent by the STA corresponding to the service type of the allowed association received in the same time. After the request is completed, the association request is responded, so that the associated service type, especially the associated service type, can be further reduced.
  • the AP may add a service type field to the existing beacon frame to indicate that the association is allowed in the beacon period (before the next beacon frame occurs).
  • One or more service types For example, as shown in FIG. 2, the first and second bits (bits) in a service type domain are respectively set to 1, indicating that only the STAs corresponding to the most urgent service type and the secondary emergency service type are allowed to be sent within the beacon period. Associate the request.
  • a time domain may be added to indicate one or more service types that are allowed to be associated in the time period indicated by the time domain; of course, in the embodiment of the present invention, A plurality of time domains are added to the beacon frame for indicating a plurality of time periods, and each time period may correspond to one or more service types that are allowed to be associated within the time period.
  • the S120 determines whether the received association request is from the STA corresponding to the service type that is allowed to be associated, and may include:
  • the beacon frame is used to indicate multiple services that are allowed to be associated in the predetermined time.
  • the service type such that the STA corresponding to the multiple service types that are allowed to associate can send the association request within the predetermined time.
  • the service type that is allowed to be associated within a predetermined time may include an emergency service type.
  • the information processing method of the embodiment of the present invention can guarantee the service quality or reliability of the emergency service type or other specific services.
  • FIG. 3 is a schematic flowchart of an information processing method 200 according to an embodiment of the present invention. As shown in FIG. 3, the method 200 includes:
  • S210 Receive a beacon frame sent by the AP, where the beacon frame is used to indicate a service type that is allowed to be associated within a predetermined time period;
  • S220 Determine, when the at least one service type included in the service type that is allowed to be associated is a service type that needs to be served, send an association request within the predetermined time.
  • the STA may determine whether the service type that is allowed to be associated in the predetermined time indicated in the beacon frame has a service type that needs to be served by itself. If there is a service type that requires its own service, the association request may be sent within the predetermined time; if there is no service type that requires its own service, the association request is sent at a time other than the predetermined time.
  • the STA may carry the association request message with its own service type identifier to notify the AP that it is the STA corresponding to the service type allowed to access.
  • the field of sequence number 19 as shown in FIG. 4a can be used to notify the AP of the type of service it supports.
  • the format of the service type field can be as shown in Figure 4b, 4c or 4d.
  • the 0th to 6th bits of the service type field may be set to 1 to indicate that the corresponding service type is an emergency service type; or as shown in FIG.
  • the 0th of the service type field may be 6bit is set to 0 to indicate that the corresponding service type is an emergency service type; or, a bit can be specifically defined in the service type field, for example, when the Obit is set to 1, as shown in FIG. 4d, Indicates that the corresponding service type is an emergency service type.
  • the information processing method of the embodiment of the present invention can guarantee the quality of service or reliability of the emergency service type or other specific services.
  • FIG. 5 is a schematic flowchart of an information processing method 300 according to an embodiment of the present invention. As shown in FIG. 3, the method 300 includes:
  • beacon frame includes a priority parameter for indicating that the emergency service type has the highest access priority, so that the emergency service type corresponding STA performs channel access according to the priority parameter.
  • the AP may broadcast a beacon frame to the BSS in which it is located, the beacon frame including a priority parameter for indicating that the emergency service type has the highest access priority, so that the STA corresponding to the emergency service type can perform channel access according to the priority parameter, for example, the priority parameter can be a backoff window (backoff) Window ), where you can modify the existing 4 priority parameters to define a highest priority.
  • the highest priority Backoff window can be defined as 0-3 or 0-7 to increase the access probability of the highest priority (ie, emergency type).
  • the beacon frame for indicating the priority parameter of the emergency service type having the highest access priority may be broadcasted, so that the emergency service type corresponding STA performs channel connection according to the priority parameter.
  • the access delay of the emergency service type can be reduced, and the packet loss rate can be reduced.
  • FIG. 6 is a schematic flowchart of an information processing method 400 according to an embodiment of the present invention. As shown in Figure 6, the method 400 includes:
  • S410 Receive a beacon frame sent by the AP, where the beacon frame includes a priority parameter used to indicate that the emergency service type has the highest access priority.
  • S420 Perform channel access according to the priority parameter when channel access related to the emergency service type is required.
  • the priority parameter may be a backoff window.
  • the emergency service may be indicated by receiving the AP.
  • Type a beacon frame having the highest access priority priority parameter, and when channel access related to the emergency service type is required, channel access is performed according to the priority parameter, and the emergency service type connection can be reduced. Enter delay and reduce the packet loss rate.
  • FIG. 7 is a schematic flowchart of an information processing method 500 according to an embodiment of the present invention. As shown in Figure 7, the method 500 includes:
  • beacon frame is used to indicate a data packet retention duration corresponding to the first service type, so that the STA related to the first service type remains associated with the first service type according to the data packet retention duration.
  • Data packet or used to indicate the number of data packet retransmissions corresponding to the second service type, so that the STA associated with the second service type retransmits the data packet related to the second service type according to the number of retransmission times of the data packet.
  • indicating a third service type that allows channel access within a predetermined time period so that the STA corresponding to the third service type performs channel access related to the third service type within the predetermined time.
  • the AP may broadcast a beacon to the BSS where the AP is located to indicate the packet retention duration corresponding to the corresponding service type. a frame, and thus, the STA related to the corresponding service type retains the data packet related to the corresponding service type according to the retention duration of the data packet, so that the data corresponding to the emergency service type or other service type can be extended by broadcasting the beacon frame.
  • the length of the packet it should be understood that if the STA needs to send a data packet that does not belong to the data packet associated with the service type specified in the beacon frame, the data retention may be performed according to the existing packet retention duration; it should also be understood that the AP Multiple durations may be defined in the beacon frame, each duration corresponding to one or more service types, such that the packet retention duration may be set according to the importance of the service type.
  • the AP in order to make the data packet corresponding to the emergency service type or other service type have more retransmission times, the AP may broadcast to the BSS where the AP is located to indicate the number of data packet retransmissions corresponding to the corresponding service type.
  • the STA associated with the corresponding service type retransmits the data packet related to the corresponding service type according to the number of retransmissions of the data packet, thereby increasing the emergency service type or other service by broadcasting the beacon frame
  • the number of data packet retransmissions corresponding to the type it should be understood that if the data packet that the STA needs to transmit does not belong to the data packet related to the service type specified in the beacon frame, the data packet may be retransmitted according to the existing number of data packet retransmission times.
  • the AP may define multiple retransmission times in the beacon frame, and each retransmission number corresponds to one or more service types, so that the number of retransmissions of the data packet may be set according to the importance of the service type.
  • the AP may broadcast a beacon frame to the STAs in the BSS in which it is located to indicate the type of service that allows channel access within a predetermined time, thereby allowing the
  • the STA corresponding to the service type of the channel access may perform channel access related to the service type that allows channel access within the predetermined time; it should be understood that the AP may define multiple sets of channel access service types in the beacon frame. Each group of channel access service types can be set corresponding to a type of importance.
  • the packet retention duration and the number of retransmissions may be set according to the service type; accordingly, the emergency service type or other specific type may also be set to have a longer number of packet retransmissions and Retaining the duration, thereby reducing the packet loss rate of the corresponding data packet; or by setting the service type for allowing the channel access for a predetermined time, thereby reducing the collision of the STA of the specific service type during the channel access process and the access time Delay, and can reduce the packet loss rate of the packet
  • FIG. 8 is a schematic flowchart of an information processing method 600 according to an embodiment of the present invention. As shown in Figure 8, the method 600 includes:
  • S610 Receive a beacon frame sent by the AP, where the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, or to indicate a number of data packet retransmission times corresponding to the second service type, or used to indicate a third service type indicating that channel access is allowed within a predetermined time;
  • beacon frame when the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, retaining a data packet related to the first service type according to the data packet retention duration;
  • beacon frame when used to indicate the number of retransmissions of the data packet corresponding to the second service type, retransmitting the data packet related to the second service type according to the number of retransmissions of the data packet;
  • beacon frame When the beacon frame is used to indicate a third service type that allows channel access within a predetermined time, channel access related to the third service type is performed within the predetermined time.
  • the packet retention duration and the number of retransmissions may be set according to the service type; accordingly, the emergency service type or other specific type may also be set to have a longer number of packet retransmissions and Retaining the duration, thereby reducing the packet loss rate of the corresponding data packet; or by setting the service type for allowing the channel access for a predetermined time, thereby reducing the collision of the STA of the specific service type during the channel access process and the access time Delay, and can reduce the packet loss rate of the packet.
  • FIG. 9 is a schematic flowchart of an information processing method 700 according to an embodiment of the present invention.
  • the method 700 includes:
  • S720 Send an association request to the access point, where the service type field in the association request indicates that the type of the required service includes an emergency service type.
  • the STA may determine whether the type of the service that needs the service includes the emergency service type. If the emergency service type is included, the type of the service that the AP itself needs to be included in the service type field of the association request may include an emergency. For details, refer to FIG. 4a to FIG. 4d, so that the AP can perform corresponding processing when receiving the association request, for example, how many emergency service type corresponding sites exist in the BSS in which the AP is located, and then can be set. The length of the predetermined time allowed for emergency service type access, and the like.
  • an association request is sent to the access point, and the service type field in the association request indicates that the type of service required includes an emergency service type, and the AP may be caused.
  • a higher priority may be granted to the emergency service type or other specific service type in the same beacon frame, for example, only the site corresponding to the emergency service type is allowed to be associated in a predetermined time;
  • multiple types of higher priority can be granted in the same beacon frame for the emergency service type or other service types.
  • only the sites corresponding to the emergency service type are allowed to be associated within a predetermined time, and only emergency is allowed within a predetermined time.
  • the service type-related channel access, as well as the data packets associated with the emergency service type are retained for a longer period of time and the data packets associated with the emergency service type have more retransmissions. For example, as shown in FIG.
  • a control field may be added to the beacon frame, where bits 0 to 3 respectively indicate whether only sites corresponding to the emergency service type are allowed to be associated within a predetermined time, within a predetermined time. Whether only the channel access related to the emergency service type is allowed, whether the data packet related to the emergency service type is reserved for a longer period of time, and whether the data packet related to the emergency service type has more retransmission times.
  • the values of the 0th to the 3th bits are 1, 1, 1, and 0, respectively, which means that only the stations corresponding to the emergency service type are allowed to be associated within a predetermined time, and only the emergency service type is allowed to be related within a predetermined time.
  • the number of retransmissions that the data packet has may be preset by the STA, or the AP may negotiate with the STA before transmitting the beacon frame.
  • the AP by defining the type of emergency service and other types that can be extended
  • the specific service type enables the AP to distinguish the association or access priority according to the type of service, for example, assigning the highest priority of the emergency service type or only allowing the site corresponding to the emergency service type to be associated for a period of time. Further, it is also possible to modify or increase the existing four priority access categories according to the service type, and give the emergency service type a higher access priority to reduce the average delay of such services. Similarly, other characteristics can be defined based on the type of service, such as longer retention times for packets, more retransmissions, and so on. In addition, the AP can also separate the association time periods of various service types STAs according to different service types in the association process.
  • This method can ensure rapid association and reduction of emergency and important service types when the number of STAs that need to be associated at the same time is large.
  • the average correlation delay of the system can improve the quality of service or reliability of an emergency service type or other specific service type.
  • FIG 11 is a schematic block diagram of an AP 800 in accordance with an embodiment of the present invention. As shown in Figure 11, the AP 700 includes:
  • a generating unit 810 configured to generate a beacon frame, where the beacon frame is used to indicate a service type that is allowed to be associated within a predetermined time;
  • the broadcast unit 820 is configured to broadcast the beacon frame, so that the site corresponding to the service type that is allowed to be associated sends an association request within the predetermined time;
  • the receiving unit 830 is configured to receive an association request sent in the predetermined time
  • a determining unit 840 configured to determine whether the association request received by the receiving unit 840 is from a site corresponding to the service type that is allowed to be associated;
  • the response unit 850 is configured to: when the determining unit 850 determines that the association request received by the receiving unit is from a site corresponding to the service type that is allowed to be associated, preferentially perform the association request response.
  • the response unit 850 is further configured to:
  • the response is delayed in response to the received association request.
  • the determining unit 840 is specifically configured to:
  • the beacon frame is used to indicate a plurality of service types that are allowed to be associated in the predetermined time, so that the site corresponding to the multiple service types that are allowed to be associated sends an association request within the predetermined time.
  • the service type that is allowed to be associated within a predetermined time includes an emergency service type.
  • the AP 800 may correspond to an AP in the information processing method 100 in the embodiment of the present invention, and the above and other operations and/or functions of the respective units in the AP 800 are respectively implemented in order to implement FIG. The corresponding process of the method 100 is not described here.
  • the AP of the embodiment of the present invention can guarantee the quality of service or reliability of the emergency service type or other specific service type.
  • FIG. 12 is a schematic block diagram of a STA 900 in accordance with an embodiment of the present invention. As shown in FIG. 12, the STA800 includes:
  • the receiving unit 910 is configured to receive a beacon frame sent by the access point, where the beacon frame is used to indicate a service type that is allowed to be associated in a predetermined time;
  • a determining unit 920 configured to determine whether the at least one service type included in the service type allowed to be associated is a service type that the station needs to serve; at least one service type is a service type that the station needs to service, at the predetermined time Send an association request within.
  • the sending unit 930 is specifically configured to:
  • An association request is sent within the predetermined time, and a service type field in the association request indicates the at least one service type.
  • the at least one service type includes an emergency service type.
  • the STAs in the method 200 are processed, and the above-mentioned and other operations and/or functions of the respective units in the STA 900 are respectively omitted in order to implement the corresponding processes of the method 200 of FIG. Therefore, in the embodiment of the present invention, by receiving a beacon frame sent by the AP for indicating a service type that is allowed to be associated within a predetermined time, and determining that the at least one service type included in the service type allowed to be associated is a service that needs to be served When the type is sent, the association request is sent within the predetermined time, which can reduce the collision in the association process and reduce the associated delay. Therefore, the STA of the embodiment of the present invention can guarantee the quality of service or reliability of the emergency service type or other specific services.
  • FIG. 13 is a schematic block diagram of an AP 1000 in accordance with an embodiment of the present invention. As shown in Figure 13, the AP 1000 includes:
  • the generating unit 1010 is configured to generate a beacon frame, where the beacon frame includes a priority parameter for indicating that the emergency service type has the highest access priority;
  • the broadcast unit 1020 is configured to broadcast the beacon frame, so that the emergency service type corresponding site performs channel access according to the priority parameter.
  • the priority parameter is a backoff window.
  • the AP 1000 may correspond to the AP in the information processing method 300 in the embodiment of the present invention, and the above and other operations and/or functions of the respective units in the AP 1000 respectively implement the The corresponding process of the method 1000 is not described here.
  • the beacon frame for indicating the priority parameter of the emergency service type having the highest access priority may be broadcasted, so that the emergency service type corresponding STA performs channel connection according to the priority parameter.
  • the access delay of the emergency service type can be reduced, and the packet loss rate can be reduced.
  • FIG. 14 is a schematic block diagram of a STA 1100 according to an embodiment of the present invention. As shown in Figure 14, the STA 1000 includes:
  • the receiving unit 1110 is configured to receive a beacon frame sent by the access point, where the beacon frame includes a priority parameter for indicating that the emergency service type has the highest access priority;
  • the access unit 1120 is configured to perform channel access according to the priority parameter when the site needs to perform channel access related to the emergency service type.
  • the priority parameter is a backoff window.
  • the STA 1100 may correspond to STAs in the information processing method 400 in the embodiment of the present invention, and the above and other operations and/or functions of the respective units in the STA 1100 are respectively implemented in order to implement FIG. The corresponding process of the method 400 is not described here.
  • the emergency service may be indicated by receiving the AP.
  • Type a beacon frame having the highest access priority priority parameter, and when channel access related to the emergency service type is required, channel access is performed according to the priority parameter, and the emergency service type connection can be reduced. Enter delay and reduce the packet loss rate.
  • FIG. 15 is a schematic block diagram of an AP 1200 in accordance with an embodiment of the present invention. As shown in Figure 15, the AP 1200 includes:
  • the generating unit 1210 is configured to generate a broadcast frame, where the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, or to indicate a number of data packet retransmissions corresponding to the second service type, or to indicate a reservation
  • the third service type that allows channel access during the time.
  • the broadcasting unit 1220 is configured to broadcast the beacon frame.
  • the AP 1200 may correspond to the AP 1200 in the information processing method 500 in the embodiment of the present invention, and the above and other operations and/or functions of the respective units in the STA 1200 respectively implement FIG. 7 The corresponding process of the method 500 is not described here.
  • the packet retention duration and the number of retransmissions may be set according to the service type; accordingly, the emergency service type or other specific type may also be set to have a longer number of packet retransmissions and Retaining the duration, thereby reducing the packet loss rate of the corresponding data packet; or by setting the service type for allowing the channel access for a predetermined time, thereby reducing the collision of the STA of the specific service type during the channel access process and the access time Delay, and can reduce the packet loss rate of the packet.
  • FIG. 16 is a schematic block diagram of a STA 1300 according to an embodiment of the present invention. As shown in FIG. 16, the STA 1300 includes:
  • the receiving unit 1310 is configured to receive a beacon frame sent by the access point, where the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, or is used to indicate a number of data packet retransmissions corresponding to the second service type.
  • the executing unit 1320 is configured to: when the beacon frame is used to indicate a data packet retention duration corresponding to the first service type, according to the data The packet retention duration retains a data packet related to the first service type, or when the beacon frame is used to indicate a number of data packet retransmissions corresponding to the second service type, retransmitting according to the number of retransmissions of the data packet And the second service type related data packet, or when the beacon frame is used to indicate a third service type that allows channel access within a predetermined time, performing the third service type within the predetermined time Related channel access.
  • the STA 1300 may correspond to the letter in the embodiment of the present invention.
  • the STAs in the method 600 are processed, and the above-mentioned and other operations and/or functions of the respective units in the STA 1200 are respectively omitted in order to implement the corresponding processes of the method 600 of FIG.
  • the packet retention duration and the number of retransmissions can be set according to the service type; accordingly, the emergency service type or other specific types can also be set to have a longer number of packet retransmissions and a retention duration, thereby reducing corresponding packets.
  • Packet loss rate or by setting a service type that allows channel access for a predetermined time, thereby reducing collisions and access delays of STAs of a particular service type during channel access, and reducing packet size Packet loss rate.
  • FIG. 17 is a schematic block diagram of a STA 1400 according to an embodiment of the present invention. As shown in FIG. 17, the STA 1400 includes:
  • the determining unit 1410 is configured to determine that the type of service required includes an emergency service type
  • the sending unit 1420 is configured to send an association request to the access point, where the service type field in the association request indicates that the type of service required includes an emergency service type.
  • the STA 1400 may correspond to STAs in the information processing method 700 in the embodiment of the present invention, and the above and other operations and/or functions of the respective units in the STA 1400 are respectively implemented to implement FIG. The corresponding process of the method 700 is not described here.
  • an association request is sent to the access point, and the service type field in the association request indicates that the type of service required includes an emergency service type, and the AP may be caused.
  • FIG. 18 is a schematic structural diagram of an AP according to an embodiment of the present invention.
  • the AP generally includes at least one processor 1510, such as a CPU, at least one port 1520, a memory 1530, and at least one communication bus 1540.
  • Communication bus 1540 is used to implement connection communication between these devices.
  • the processor 1510 is configured to execute an executable module stored in the memory 1530, such as a computer program; the AP optionally includes a user interface 1550, including but not limited to a display, a keyboard and a pointing device, such as a mouse, a trackball, a touchpad Or a touch screen.
  • the memory 1530 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
  • the communication connection with the at least one STA is achieved by at least one port 1520, and the communication connection between the at least one other port 1520 and the at least one network device node.
  • the memory 1530 stores the following elements, executable modules or Data structures, or their subsets, or their extension set:
  • Operating system 1532 which contains various system programs for implementing various basic services and handling hardware-based tasks
  • Application module 1534 which contains various applications for implementing various application services.
  • the application module 1534 includes, but is not limited to, a transmitting unit 1536 and a receiving unit 1538.
  • each unit in the application module 1534 refers to the corresponding unit in the embodiment shown in Fig. 11, Fig. 13, or Fig. 15, which is not described herein.
  • FIG. 19 is a schematic structural diagram of a STA according to an embodiment of the present invention.
  • the STA generally includes at least one processor 1610, such as a CPU, at least one port 1620, a memory 1630, and at least one communication bus 1640.
  • Communication bus 1640 is used to implement connection communication between these devices.
  • the processor 1410 is configured to execute an executable module stored in the memory 1630, such as a computer program; the STA optionally includes a user interface 1650, including but not limited to a display, a keyboard, and a pointing device, such as a mouse, a trackball, a touchpad Or a touch screen.
  • Memory 930 may contain high speed RAM memory and may also include non-volatile memory
  • non-volatile memory such as at least one disk storage.
  • the STA is in communication with at least one of the ports via at least one port 1620, and is in communication with at least one STA node via at least one other port 1620.
  • memory 1630 stores the following elements, executable modules or data structures, or a subset thereof, or their extension set:
  • the operating system 1632 which contains various system programs for implementing various basic services and processing hardware-based tasks;
  • the application module 1634 includes various applications for implementing various application services.
  • the application module 1634 includes, but is not limited to, a receiving unit 1636 and a transmitting unit 1638.
  • each unit in the application module 1634 refers to the corresponding unit in the embodiment shown in Fig. 12, Fig. 14, Fig. 16, or Fig. 17, which is not described herein.
  • RAM random access memory
  • ROM read only memory
  • electrically programmable ROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.
  • the invention is not limited to this.
  • Various equivalent modifications and alterations to the embodiments of the present invention can be made by those skilled in the art without departing from the spirit and scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente invention décrivent un procédé de traitement d'informations, un point d'accès, et une station. Le procédé comprend les étapes suivantes : diffuser une trame de balise, la trame de balise étant utilisée pour indiquer un type de service qui permet d'être associé dans un temps prédéfini, de sorte qu'une station correspondant au type de service qui permet d'être associé envoie une demande d'association dans le temps prédéfini; lorsqu'une demande d'association envoyée dans le temps prédéfini est reçue, déterminer si la demande d'association reçue provient de la station correspondant au type de service qui permet d'être associé; et lorsque la demande d'association reçue provient de la station correspondant au type de service qui permet d'être associé, répondre préférentiellement à la demande d'association reçue. Le procédé de traitement d'informations, le point d'accès, et la station décrits dans les modes de réalisation de la présente invention permettent ainsi d'améliorer la qualité du service ou la fiabilité des types de services émergents ou d'autres types de services spécifiques.
PCT/CN2013/083918 2012-12-12 2013-09-22 Procédé de traitement d'informations, point d'accès, et station Ceased WO2014090006A1 (fr)

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