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WO2015061949A1 - Procédé et appareil d'ordonnancement commun - Google Patents

Procédé et appareil d'ordonnancement commun Download PDF

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Publication number
WO2015061949A1
WO2015061949A1 PCT/CN2013/086086 CN2013086086W WO2015061949A1 WO 2015061949 A1 WO2015061949 A1 WO 2015061949A1 CN 2013086086 W CN2013086086 W CN 2013086086W WO 2015061949 A1 WO2015061949 A1 WO 2015061949A1
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WO
WIPO (PCT)
Prior art keywords
access point
sector
currently used
information
sectors
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/CN2013/086086
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English (en)
Chinese (zh)
Inventor
姜艳平
杨浔
赵牧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
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
Priority to CN201380078491.5A priority Critical patent/CN105409266B/zh
Priority to PCT/CN2013/086086 priority patent/WO2015061949A1/fr
Publication of WO2015061949A1 publication Critical patent/WO2015061949A1/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
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a method and apparatus for joint scheduling.
  • Wireless network Wi reles s Loca l Area Network, WLAN
  • WLAN Wireless network
  • BSS Basic Server Sets
  • directional transmission technology divides the area covered by one access point into several sectors, which stipulates that only one sector can communicate at a certain time.
  • RTS/CTS Reques t To Send/Clear To Send
  • two adjacent access points use only one sector for communication, if the coverage of the two sectors is If the ranges do not overlap, then the interference between them will be smaller.
  • the directional transmission technology does improve the communication effect because the coverage of adjacent access points overlaps and cannot communicate at the same time.
  • the RTS/CTS mechanism when the RTS/CTS mechanism is turned off, the sectors of two adjacent access points that use directional transmission technology and communicate simultaneously may overlap in coverage. At this time, adjacent access points Although it can communicate at the same time, the interference is large, and even because the interference is particularly serious, the two access points cannot communicate normally; Moreover, when the RTS/CTS mechanism is turned on, in order to avoid interference, the neighboring access point is being monitored to communicate. The other access point will choose to retrace, so that there is no interference between adjacent access points, but simultaneous communication is not possible. Summary of the invention
  • Embodiments of the present invention provide a method and apparatus for joint scheduling to ensure that adjacent access points can communicate normally at the same time.
  • a method for joint scheduling including:
  • the first access point obtains, by the first access point, information about a sector currently used by the second access point, where the first access point determines, according to the information, a sector currently used by the second access point, where The second access point is an access point that has the same frequency as the first access point and has overlapping coverage;
  • the interference between sectors is less than a preset value
  • the first access point communicates with the station using the determined sector.
  • the information that the first access point acquires a sector currently used by the second access point includes:
  • the first access point acquires media access control of a current communication site of the second access point
  • the first access point acquires media access control of a current communication site of the second access point
  • the MAC address includes:
  • the first access point receives a control frame or a data frame sent by the second access point, or receives the first a control frame or a data frame sent by the current communication station of the second access point, where the control frame and the data frame include a MAC address of a current communication station of the second access point;
  • the first access point is in the first access point and the second access point at the same time.
  • the site within the coverage sends a MAC address request message, and receives the second access point through the same at the same time as the first a MAC address response message returned by the access point and a site within the coverage of the second access point, the MAC address response message including a MAC address of a current communication site of the second access point.
  • the first access point obtains the correspondence between the information of the MAC address and the sector includes: :
  • the first access point receives a corresponding relationship advertisement message periodically broadcasted by the second access point, where the corresponding relationship is
  • the notification message includes a correspondence between the MAC address and the information of the sector
  • the first access point is in the first access point and the second access point at the same time.
  • the site in the coverage area sends a correspondence request message, and receives a correspondence returned by the second access point by the site that is in the coverage of the first access point and the second access point
  • the correspondence response message includes a correspondence between the MAC address and the information of the sector.
  • the information that the first access point acquires the sector currently used by the second access point includes:
  • the first access point receives the current access station of the second access point or the second access point to send Control frame, the control frame includes information of a sector currently used by the second access point;
  • a site within the coverage area sends a sector information request message, and receives a fan returned by the second access point through the site that is simultaneously within the coverage of the first access point and the second access point a zone information response message, the sector information response message containing information of a sector currently used by the second access point.
  • control frame is a request to send an RTS frame and/or a clear to send a CTS frame.
  • the sector currently used by the second access point Letter The information includes: a number of the sector currently used by the second access point or a direction of the main lobe.
  • the second access is obtained by the first access point Before the information of the sector currently used, the method further includes:
  • the first access point acquires a priority of itself and the second access point
  • the acquiring, by the first access point, the information about the sector currently used by the second access point includes: when the priority of the second access point is higher than the priority of the first access point, The first access point acquires information of a sector currently used by the second access point.
  • the second access point is in the same frequency as the first access point, and the coverage is overlapped. And obtaining, by the first access point, information about a sector currently used by the second access point, where the first access point acquires a priority ratio of the second access point Information about sectors currently used by each access point that is higher by the first access point;
  • Determining, by the first access point, the sector currently used by the second access point according to the information includes:
  • the interference between sectors is less than the preset value, including:
  • the determined interference between the sector and the sector currently used by each of the access points is less than a preset value.
  • the first access point is currently according to the second access point
  • the sector used, determining the sector to be used by itself, such that the interference between the determined sector and the sector currently used by the second access point is less than a preset value includes: The first access point selects, from a sector having a communication task, a sector that does not overlap with a sector currently used by the second access point and whose relative difference in the direction of the main lobe direction is not less than a threshold. The sector that you are currently using.
  • the first access point selects a second access from a sector that has a communication task A sector in which the sector currently used has no overlap and the relative difference in the direction of the main lobe direction is not less than the threshold, and the sector to be used as its own includes:
  • the first access point selects, from among the plurality of sectors, a relative difference between a main lobe direction pointing angle and a main lobe direction pointing angle of a sector currently used by the second access point The largest sector, as the sector that it is currently using.
  • the first access point selects a second connection from a sector having a communication task
  • the sector in which the in-situ sector currently used has no overlap and the relative difference in the direction of the main lobe direction is not less than the threshold, and the sector to be used as its own includes:
  • the first access point selects, from the plurality of the sectors, a communication duration that is not longer than a communication duration of a sector currently used by the second access point, as the current use of the sector itself Sector.
  • the first access point selects a main lobe direction direction from the plurality of the sectors
  • the method further includes: a sector having a maximum relative difference between the angle and the main lobe direction pointing angle of the sector currently used by the second access point, as the sector to be used by the second access point, the method further includes:
  • a device for joint scheduling including:
  • An acquiring unit configured to acquire information about a sector currently used by the second access point
  • a determining unit configured to determine, according to the information acquired by the acquiring unit, a sector currently used by the second access point, where the second access point is in the same frequency as the jointly scheduled device And coverage points have overlapping access points;
  • the determining unit is further configured to determine, according to a sector currently used by the second access point, a sector that is currently used by the second access point, so that the determined sector and the second access point are currently used.
  • the interference between the sectors is less than the preset value
  • a communication unit configured to communicate with the station by using the determined sector.
  • the acquiring unit includes:
  • the first obtaining module is specifically configured to: obtain a medium access control MAC address of a current communication site of the second access point;
  • the second obtaining module is configured to: obtain, according to the correspondence between the MAC address acquired by the first acquiring module and the pre-acquired MAC address and the information of the sector, the current access point of the second access point is used.
  • the information of the sector is configured to: obtain, according to the correspondence between the MAC address acquired by the first acquiring module and the pre-acquired MAC address and the information of the sector.
  • the first acquiring module is specifically configured to:
  • the first acquiring module receives a control frame or a data frame sent by the second access point, or receives the second interface.
  • a control frame or a data frame sent by the current communication station of the inbound point where the control frame and the data frame include a MAC address of a current communication station of the second access point;
  • the first acquiring module is in the coverage of the device that is both in the joint scheduling and the second access point.
  • the station sends a MAC address request message, and receives a MAC address response message returned by the second access point by the station that is in the coverage of the joint scheduling device and the second access point.
  • the MAC address response message includes the current communication site of the second access point MAC address.
  • the second acquiring module is specifically configured to:
  • the second acquiring module receives a corresponding relationship advertisement message periodically broadcasted by the second access point, where the corresponding relationship notification message is received. Determining a correspondence between the MAC address and the information of the sector, and acquiring, according to the MAC address acquired by the first acquiring module, the corresponding relationship advertisement message, the current use of the second access point Sector information
  • the second acquiring module is in the coverage of the device that is both in the joint scheduling and the second access point.
  • the station sends a correspondence request message, and receives a correspondence response message returned by the second access point by the device that is in the joint scheduling device and the site in the coverage of the second access point,
  • the corresponding relationship response message includes a correspondence between the MAC address and the information of the sector, and the second access point is obtained according to the MAC address acquired by the first obtaining module and the corresponding relationship response message.
  • the acquiring unit is specifically configured to:
  • the acquiring unit receives a control frame sent by the current access station of the second access point or the second access point,
  • the control frame includes information about a sector currently used by the second access point;
  • the acquiring unit sends a site that is in the coverage of the device that is both the joint scheduling and the second access point Transmitting a sector information request message, and receiving a sector information response message returned by the second access point by the device that is in the joint scheduling device and the second coverage point,
  • the sector information response message contains information of the sector currently used by the second access point.
  • the control frame is a request to send an RTS frame and/or a clear to send a CTS frame.
  • the sector currently used by the second access point The information includes: a number of the sector currently used by the second access point or a direction of the main lobe.
  • the acquiring unit is further configured to:
  • the acquiring unit Before obtaining, by the acquiring unit, the information about the sector currently used by the second access point, acquiring the priority of the jointly scheduled device and the second access point;
  • the obtaining unit is specifically configured to:
  • the second access point is in the same frequency as the jointly scheduled device, and the coverage is overlapped.
  • the acquiring unit is specifically configured to:
  • the determining unit is specifically configured to:
  • the interference between the sectors currently used by each access point is less than a preset value.
  • the determining unit is specifically configured to:
  • the determining unit is specifically configured to:
  • the determining unit determines, by the determining unit, a sector having the largest difference between the main lobe direction pointing angle and the main lobe direction pointing angle of the sector currently used by the second access point from the plurality of the sectors , as the sector currently to be used by the joint scheduling device.
  • the determining unit is specifically configured to:
  • the determining unit determines, by the determining unit, a sector in which the communication duration is not greater than a communication duration of a sector currently used by the second access point from the plurality of sectors, as the joint scheduling device currently needs The sector used.
  • the determining unit is further configured to:
  • the determining unit selects the station with the highest priority of the communication task as the station that communicates with the jointly scheduled device.
  • the second access point is an access point that has the same frequency as the first access point and has overlapping coverage.
  • the first access point can determine, according to the information, a sector currently used by the second access point.
  • the first access point determines, according to the sector currently used by the second access point, a sector with a sector interference currently used by the second access point that is less than a preset value, as the The sector to be used currently, and the use of the The fixed sectors communicate. In this way, the sector determined by the first access point and the sector currently used by the second access point can communicate normally at the same time.
  • FIG. 1 is a flowchart of an embodiment of a method for joint scheduling according to the present invention
  • 2A is a schematic diagram of sector division
  • 2B is a schematic diagram of the sector main lobe direction of the second access point facing away from the first access point;
  • 2C is a schematic diagram of a sector main lobe direction of a second access point pointing to a first access point
  • FIG. 3 is a schematic diagram of a specific embodiment of a method for joint scheduling according to the present invention.
  • 4A is a schematic diagram of a beacon frame and a communication duration
  • 4B is a schematic diagram of comparison of a beacon frame and a communication duration
  • FIG. 5 is a schematic diagram of another specific embodiment of a method for joint scheduling according to the present invention.
  • FIG. 6 is a structural block diagram of an embodiment of a device for joint scheduling according to the present invention.
  • Figure ⁇ is a structural block diagram of an embodiment of an access point of the present invention. detailed description
  • FIG. 1 is a flow chart of an embodiment of a method of joint scheduling of the present invention. As shown in FIG. 1, the method for joint scheduling provided by the embodiment of the present invention includes:
  • the first access point acquires information about a sector currently used by the second access point, where the first interface Determining, according to the information, a sector currently used by the second access point, where the second access point is an uplink that has the same frequency as the first access point and overlaps coverage. point.
  • the first access point may be an access point
  • the second access point may be another access point or a group other than the first access point.
  • the proximity of the access points indicates that the access points communicate using the same frequency and the coverage overlaps.
  • the second access point is adjacent to the first access point, and is based on a basic service set corresponding to the second access point and a basic service corresponding to the first access point.
  • the set neighbors wherein the basic service set exists in an infrastructure type wireless local area network architecture, and includes an access point and a plurality of stations associated with the coverage area thereof.
  • the service set is densely distributed, that is, the wireless LAN communication in which the access point is densely distributed, and the RTS/CTS mechanism only needs to be turned on when the control frame is used.
  • the second access point communicates with the site corresponding to the communication task when a communication task (a packet of the following line) occurs, and then, according to the prior art In the manner, an optimal sector is selected for the station, and the sector in which the station is located is the sector currently used by the second access point.
  • the information of the sector currently used by the second access point is sent out, where the information of the currently used sector includes the sector number or the main The direction of the petals, etc.
  • the number of the sector is determined by the sector division mode of the access point, and the sectors in the different main lobe directions correspond to different sector numbers (for simplicity, only the numbering is used in the following description).
  • the first access point receives the information sent by the second access point in a direct or indirect manner, and can obtain the number of the sector currently used by the second access point.
  • the first access point may determine a sector currently used by the second access point by using a control frame, a data frame, or a MAC address response message, and a correspondence relationship advertisement message or a correspondence relationship response message.
  • the second access point may also be determined by a control frame or sector information response message.
  • the response message is sent by the site for the request message, and the information requested by the request message may be sent in multiple formats. The following is a brief description of the two situations.
  • the first access point may acquire a correspondence between a MAC address of a station to be communicated by the second access point and information of a used sector by using the following manner: Receiving, in the coverage of the second access point, the first access point receives a corresponding relationship announcement message periodically broadcasted by the second access point; if the first access point is not in the second Within the coverage of the access point, the corresponding relationship request message is sent to the station that is in the coverage of the first access point and the second access point, and the corresponding relationship response message returned by the station is received.
  • the correspondence relationship advertisement message may specifically be a beacon frame or a custom frame.
  • the first access point may acquire the MAC address of the current communication site of the second access point by: if the first access point is within the coverage of the second access point, And receiving a control frame (RTS frame and/or CTS frame) or a data frame sent when the second access point interacts with the station with which the second access point interacts; if the first access point is not in the second connection Within the coverage of the ingress, the MAC address request message may be sent to the station that is within the coverage of the first access point and the second access point, and then the MAC address response message returned by the station is received.
  • RTS frame and/or CTS frame control frame
  • a data frame sent when the second access point interacts with the station with which the second access point interacts
  • the MAC address request message may be sent to the station that is within the coverage of the first access point and the second access point, and then the MAC address response message returned by the station is received.
  • the first The access point may determine the sector currently used by the second access point according to the MAC address of the station and the number of the sector, the corresponding relationship.
  • the first access point may be used when the first access point determines a sector currently used by the second access point by using a control frame or a sector information response message. Determining a sector currently used by the second access point in the following manner: if the first access point is within the coverage of the second access point, receiving the second access point or the Current communication of the second access point a control frame sent by the station; if the first access point is not in the coverage of the second access point, the coverage of the first access point and the second access point may be simultaneously The station within the station sends a sector information request message, and receives a sector information response message returned by the station, where the control frame and the sector information response message each include a sector currently used by the second access point. Number or main lobe direction information.
  • priority may be set for each access point, where the priority of the access point corresponds to the priority of the basic service set in which the access point is located, and the priority of the access point is set. This is achieved by setting the priority of the basic service set. It should be noted that the purpose of setting the priority is to specify that an access point should adjust its own sector according to the sector currently used by all the access points whose priority is higher than the priority. The sector currently used by the access point adjusts its own sector, which can prevent adjacent access points from interfering with each other according to the sector currently used by the other party to adjust its own sector.
  • the priority setting applies when two or more access points are adjacent.
  • the first access point is an access point
  • the second access point is a plurality of access points adjacent to the first access point.
  • the first access point acquires information about a sector currently used by each access point with a higher priority than the first access point in the second access point, and determines, according to the acquired information, The sector currently used by each access point whose priority is higher than itself in the second access point.
  • the first access point determines, according to a sector currently used by the second access point, a sector that is currently to be used by the first access point, so that the determined sector and the second access point are currently located.
  • the interference between the sectors used is less than the preset value.
  • Inter-sector interference refers to the interference between one access point's directional communication with the station within one sector and the directional communication of another access point with another station within another sector.
  • the interference of the sectors may be large, and if the sectors do not overlap, the interference may be reduced.
  • the purpose to be achieved is that the communication interference between the same frequency access points is at least less than the interference when the sectors overlap, and the relative difference in the pointing angle of the main lobe direction between the non-overlapping sectors is Large, the more interference between sectors small.
  • the relative difference of the pointing angles is equal to the degree of the angle of the pointing angle of the main lobe direction between the sectors or the degree of the complementary angle of the included angle, how to determine the relative difference of the pointing angles, in the following A detailed description will be made in conjunction with the drawings. If the relative difference in the pointing angle of the main lobe direction between the non-overlapping sectors is sufficiently large, the interference between the sectors is significantly smaller than the interference when the sectors overlap. In actual use, depending on the application scenario, the preset value can be determined according to actual needs.
  • the interference value corresponding to the main lobe directions of the two sectors may be set to a preset value, and for example, the interference corresponding to the main lobe direction of the sectors may be pointed to each other.
  • a certain percentage of the value is set to a preset value, such as 85% or 60% of the interference value corresponding to when the sectors are completely overlapped.
  • the small interference means that the interference between the sectors is less than a preset value, and after the sector division of the access point is determined, the interference between the sectors of the adjacent access points A small number combination has been determined.
  • the main lobe direction of the access point sector is a fixed number of directions, for example, as shown in Fig. 2A, fixed to eight directions numbered 1 to 8.
  • FIG. 2B if the sector (5) currently used by the second access point AP2 is facing away from the first access point API, the sector in the first access point API facing away from the second access point AP2 ( 1, 2 or 8) The interference between the sector (5) currently used by the second access point AP2 is small. As shown in FIG.
  • Whether the sector currently used by the second access point AP2 is backward or pointing to the first access point API can be determined by: introducing a ray from the second access point AP2 to the first access point API, if If the angle between the main lobe direction of the sector currently used by the access point AP2 and the ray is greater than 90 degrees, it is determined that the sector currently used by the second access point AP2 is facing away from the first access point API; If the angle between the main lobe direction of the sector currently used by the access point AP2 and the ray is less than 90 degrees, it is determined that the sector currently used by the second access point AP2 points to the first access point AP1.
  • the relative difference in the pointing angle of the main lobe direction between the sectors of the first access point API and the second access point AP2 can be calculated as follows. As shown in FIG. 2B, the sector number currently used by the second access point AP2 is 5, which is back to the first access point AP1.
  • the first access point API may select sectors numbered 1, 2 or 8. At this time, the degree of the angle of the main sector direction of the two sectors (ranging from 0 to 180 degrees, including 0 degrees and 180 degrees) is selected as the relative difference of the pointing angles between the sectors.
  • the angle between the main lobe directions of sectors numbered 1 and 5 is 180 degrees
  • the angle of the main lobe direction of sectors numbered 1 and 5 is 135 degrees
  • the mains of sectors numbered 8 and 5 The angle of the flap is 135 degrees. It can be seen that if the first access point API selects the sector numbered 1, the relative difference between the direction of the main lobe direction of the first access point API and the sector of the second access point AP2 is the largest, which is 180. degree.
  • the sector number currently used by the second access point AP2 is 1 and points to the first access point AP1.
  • the first access point API can select sectors numbered 1, 2 or 8.
  • the degree of complement angle of the angle between the main sectors of the two sectors is selected as the relative difference in the pointing angle between the sectors.
  • the angle between the main lobe directions of the sectors numbered 1 and 1 is 0 degrees, and the complementary angle of the included angle is 180 degrees; the angle of the main lobe direction of the sectors numbered 2 and 1 is 45 degrees, at an angle
  • the complementary angle is 135 degrees; the angle between the main lobe directions of the sectors numbered 8 and 1 is 45 degrees, and the complementary angle of the included angle is 135 degrees. It can be seen that if the first access point API selects the sector numbered 1, the relative difference between the pointing angles of the main lobe direction between the first access point API and the sector of the second access point AP2 is the largest, 180 degree.
  • the threshold of small sector interference can be set to, for example, 90 degrees, that is, the sector of the first access point and the second access point.
  • the relative difference in the pointing angle of the sector satisfying the direction of the main lobe with less interference is at least 90 degrees.
  • the relative difference in the pointing angle of the main lobe direction between the sectors is determined in the same manner as the case where the main lobe direction of the access point sector is fixed.
  • the first access point may select a current location from the second access point The sector with the smallest sector interference is used as the sector that it is currently using. If said and said second The station having the smallest sector interference currently used by the access point has a plurality of stations capable of communicating with the first access point, and the first access point may select from the plurality of the stations. The site with the highest priority for communication tasks, as the site with which it communicates.
  • the first access point may select a sector in which the duration of one communication is not greater than the duration of the second access point, as the sector to be used by itself. .
  • the first access point may acquire the communication duration of the second access point from the second access point, or acquire the second access point by using a station that communicates with the second access point.
  • the length of communication For example, if there is a sector in the sector of the first access point that is less interfered with the second access point, respectively, API. Sector l, API. Sector2, or API.
  • the first access point may select the numbering API.
  • the first access point may select a sector AP1.
  • the communication duration can also be calculated using both.
  • the first access point may be one access point, and the second access point may be a group access with higher priority than the first access point. point.
  • the second access point includes a third access point and a fourth access point with a higher priority than the third access point. It should be noted that, before the first access point determines the sector that it is currently to use, the sector currently used by the third access point satisfies the fan currently used by the fourth access point. The condition that the area interference is small, the communication duration of the third access point and its communication station is not greater than the communication duration of the fourth access point and its communication station.
  • the determined sector should simultaneously satisfy the sector currently used by the third access point and the fourth access point.
  • the interference between the first access point and its communication station should simultaneously satisfy not more than the communication duration of the third access point and its communication station, and the communication between the fourth access point and its communication site. Duration, where the determined method is adjacent to two access points The same, will not be described here. In this way, when the neighboring access points are extended from two to more than three, the joint scheduling method provided by this embodiment is also applicable.
  • the first access point communicates with the station by using the determined sector.
  • the first access point After the first access point determines the sector that it is currently using, the first access point communicates with its associated site on the determined sector. At the same time, the second access point also communicates with its associated site on the sector it is currently using. Because the first access point adjusts a sector according to a sector currently used by the second access point, the sector determined by the first access point and the second access point currently The interference of the used sector is small, so that the first access point and the second access point can simultaneously communicate and have less interference, thereby achieving the effect of space division multiplexing and improving communication efficiency.
  • the joint scheduling method is applied to the occasion of wireless local area network communication.
  • the first access point After determining the sector currently used by the second access point, the first access point does not select backoff to avoid interference, but determines the number according to the sector currently used by the second access point.
  • the sector currently used by the two access points interferes with the smaller sector and communicates using the determined sector.
  • the sector determined by the first access point and the sector currently used by the second access point can communicate not only simultaneously but also with low interference.
  • the RTS/CTS mechanism is turned off, the sectors of the respective directional communication are caused by the improper scheduling, and the interference between the sectors is large, or the RTS/CTS mechanism is enabled.
  • the access point selects the escaping because the neighboring access point is being communicated, the neighboring access point cannot perform the simultaneous communication.
  • the joint scheduling method provided by the embodiment of the present invention can ensure the adjacent access. Points can communicate at the same time and the interference is small.
  • the method for joint scheduling provided by the specific embodiment of the present invention includes: 31.
  • the first access point acquires the priority of the second access point and the second access point, and learns that the priority of the second access point is higher than its own priority.
  • the first access point may be an access point
  • the second access point may be another access point, where the second access point and the first An access point communicates using the same frequency, and the coverage of the two overlaps.
  • the first access point may obtain the priority of the second access point by using an access controller (Acces s Controller, AC), or may compare the parameters that affect the priority setting between the access points. Determining the relationship between the priority of the access points.
  • the parameters may be, for example, the number of stations within the coverage of the access point, and the like.
  • the first access point is set to have a lower priority than the second access point.
  • the second access point may learn that its priority is higher than the first access point in the same manner as the first access point.
  • the first access point receives a corresponding relationship advertisement message periodically broadcasted by the second access point, where
  • the correspondence relationship notification message includes a correspondence between a MAC address of the station to which the second access point is to communicate and information of the sector.
  • the first access point can directly receive the message sent by the second access point.
  • the first access point may receive a corresponding relationship announcement periodically broadcast by the second access point.
  • a message where the corresponding relationship advertisement message may be broadcasted in a manner of a beacon frame, a custom frame, or the like, where the correspondence relationship advertisement message includes a MAC address of a station to which the second access point is to communicate and the station.
  • the second access point may periodically broadcast to a surrounding access point and a station in a manner of a broadcast beacon frame (ie, a beacon broadcast), where the information contained in the beacon frame is:
  • the number of sectors to which the second access point is to be performed with which stations are to be performed for a period of time Communication that is, the correspondence between the number of the sector and the MAC address of the station. That is, the second access point may notify one of the adjacent access points or stations of one or more downlink communication tasks and their corresponding sectors through a beacon frame, and correspondingly, corresponding to the site.
  • the sectors can be the same or different.
  • the first access point may directly receive the beacon frame, and then, according to the received beacon frame, determine, between the number of the sector that the second access point is about to communicate with the MAC address of the station. Correspondence.
  • the MAC address of the beacon frame broadcasted by the second access point AP2 corresponds to three stations STA21, STA22, and STA23, and the number of the sector corresponding to the three stations may be AP2. Tor l, AP2. Sec tor2 and AP2. Sec tor 3.
  • the sectors corresponding to the three sites can also have the same number.
  • the first access point API may determine the sector AP2. Sec tor1 corresponds to the station STA21, the sector AP2. Sec tor2 corresponds to the station STA22, and the sector AP2. Sec tor3 corresponds to the station STA23.
  • the first access point cannot directly receive the correspondence relationship notification message from the second access point, and Transmitting a correspondence request message to a station that is in the coverage of the first access point and the second access point to request a MAC address and a fan of the station that the second access point is about to communicate with Corresponding relationship between the information of the area; the station that is in the coverage of the first access point and the second access point may return a target after receiving the corresponding relationship request message Corresponding relationship response message of the correspondence request message, where the correspondence relationship response message includes the correspondence relationship.
  • the station that is in the coverage of the first access point and the second access point may be a station that is in communication with the second access point, or may not The site where the second access point communicates.
  • the station that is in the coverage of the first access point and the second access point may learn the corresponding relationship by receiving a corresponding relationship advertisement message broadcast by the second access point.
  • the station that is in the coverage of the first access point and the second access point may also need to trigger the request of the first access point, and directly send one that includes the corresponding The message of the relationship is received by the first access point.
  • Place The correspondence request message and the correspondence response message may be sent in the form of a management frame or a custom frame. After receiving the corresponding relationship response message, the first access point may determine the corresponding relationship.
  • the first access point receives a control frame or a data frame sent by the second access point, or receives a a control frame or a data frame sent by a current communication station of the second access point, where the control frame and the data frame include a MAC address of a current communication station of the second access point.
  • the control frame may be an RTS frame and/or a CTS frame, and the data frame is a data DATA frame sent when the access point communicates with the station. If the first access point is within the coverage of the second access point, the first access point learns the number of the sector to be communicated by the second access point and the MAC of the station. After the corresponding relationship between the addresses, the control frame sent by the second access point may be directly received, or the control frame sent by the current communication station of the second access point may be directly received, where the control frame includes The MAC address of the current communication site of the second access point. Additionally, the second access point transmits a data frame to the station with which it communicates when communicating with the station with which it communicates.
  • the first access point may determine a MAC address of the current communication site of the second access point.
  • the first access point may receive a data frame sent by a station that communicates with the second access point, and according to the data frame, determine a current communication station of the second access point. MAC address.
  • the intra-site may return a MAC address response message for the MAC address request message, where the MAC address response message includes the MAC of the current communication site of the second access point. address.
  • the station that is in the coverage of the first access point and the second access point is configured to receive the control frame sent by the second access point or a data frame, or a control frame or a data frame sent by the current communication station of the second access point to learn the MAC address of the current communication site of the second access point.
  • the MAC address request message and the MAC address response message may be sent in the form of a management frame or a custom frame.
  • the first access point may determine a MAC address of a current communication station of the second access point.
  • the first access point determines, according to a correspondence between a number of a sector of the second access point and a MAC address of the site, and a MAC address of the site, a fan currently used by the second access point. The number of the area.
  • the An access point may determine the sector currently used by the second access point according to the MAC address of the station and the number of the sector, the corresponding relationship.
  • the second access point AP2 first performs an RTS/CTS frame interaction with the station STA21, and if the first access point API is within the coverage of the second access point AP2 or the station STA21, the first access point The API may receive the RTS/CTS frame and determine the MAC address of the station STA 21 that is communicating with the second access point AP2 accordingly.
  • the first access point learns, according to the pre-acquired beacon frame, the MAC address of the station to be communicated by the second access point and the number of the sector-corresponding relationship. As shown in FIG. 4A, since the sector AP2.
  • the first access point API can determine the second access point AP2 after determining that the station that is communicating with the second access point AP2 is the station STA21.
  • the sector currently used is the sector AP2.
  • Sectorl After the communication between the second access point AP2 and the station STA21 is completed, if the second access point AP2 and the station STA22 perform the RTS/CTS frame interaction, the first access point API may also receive the RTS/CTS frame according to This determines the MAC address of the station STA22 that is communicating with the second access point AP2. Since the sector AP2.
  • the first access point API can determine that when the second access point AP2 communicates with the station STA22, the sector currently used by the second access point AP2 is a fan. Area AP2. Sector2. 35.
  • the first access point determines, according to a sector currently used by the second access point, a sector that is currently used by itself.
  • the first access point may select a sector number corresponding thereto, so that the sector corresponding to the selected number and the second interface
  • the interference between the currently used sectors of the in point is minimal.
  • the first access point may further select, in the sector with the least interference, the station with the highest priority of the communication task as the station with which to communicate.
  • the first access point may select, in a sector in which a communication task exists, a communication duration that is not greater than a communication duration of a sector currently used by the second access point as a sector to be used by itself. It is said that the two communication durations are the smallest.
  • the first access point API selects a downlink communication sector according to the information of the sector of the second access point AP2, and the communication duration corresponding to the selected site of the first access point API is T1, the communication duration of the second access point AP2 in the time period of the same sector oriented communication is T21, and the communication duration T1 should not be greater than the communication duration T21. This is because the working mode of the access point is half-duplex. If the communication duration T1 is greater than the communication duration T21 (refer to Figure 4 ⁇ ), the first access point API sends the data packet yet to end and misses receiving the second access.
  • the sector adjustment may cause a large interference between the sector of the new round of downlink communication of the second access point AP2 and the sector currently used by the first access point API. It can be seen that by specifying that the communication duration of the site selected by the first access point is not greater than the communication duration of the site selected by the second access point, it can be ensured that the first access point does not miss the location.
  • the sector information of the new round of downlink communication of the second access point may also be avoided between the sector currently used by the first access point and the sector of the second access point of the second access point. Interference.
  • the first access point communicates with the station by using the determined sector.
  • the first access point After the first access point determines a sector with a small interference with the sector according to a sector currently used by the second access point, the first access point communicates with a station that is to communicate with the determined sector. . At the same time, the second access point also communicates with the communication site on the sector it is currently using. In this way, the first access point and the second access point can communicate at the same time and the interference is small.
  • the joint scheduling method is applied to the occasion of wireless local area network communication.
  • the first access point After acquiring the information of the sector currently used by the second access point, the first access point does not select backoff to avoid interference, but according to the information of the sector currently used by the second access point, A sector that is less interfered with the sector currently used by the second access point is determined and communicated using the determined sector. In this way, due to proper scheduling, the sector currently determined by the first access point and the sector currently used by the second access point can communicate not only simultaneously but also less than a preset value.
  • FIG. 5 is a flowchart of a specific embodiment of the method for joint scheduling according to the present invention. As shown in FIG. 5, the method for joint scheduling provided by the specific embodiment of the present invention includes:
  • the first access point acquires the priority of the second access point and the second access point, and learns that the priority of the second access point is higher than its own priority.
  • the first access point may be an access point
  • the second access point may be another access point or a group other than the first access point.
  • An ingress point wherein the second access point and the first access point both communicate using the same frequency, and the coverage areas of the two overlap.
  • the priority of the access point Prior to the start of the data communication task, the priority of the access point has been determined.
  • the second access point is an access point
  • the first access point learns that the priority of the second access point is higher than its own priority
  • the second access point learns The priority of the first access point is lower than the priority of the first access point, and the method is the same as that of step 31, and details are not described herein again.
  • the second access point may include a third access point and a higher priority than The fourth access point of the third access point.
  • the first access point learns that the priority of the third access point and the fourth access point is higher than itself.
  • the third access point learns that the priority of the first access point is lower than itself, and learns that the priority of the fourth access point is higher than itself.
  • the fourth access point learns that the priority of the first access point and the third access point is lower than itself. 52. If the first access point is within the coverage of the second access point, the first access point receives current communication of the second access point or the second access point. a control frame sent by the station, where the control frame includes information about a sector currently used by the second access point.
  • the first access point is aware of the second access point.
  • the second access point can directly receive the RTS frame and/or the CTS frame in the interaction process, and determine according to the RTS frame and/or the CTS frame. The number of the sector currently used by the second access point. If the first access point is not in the coverage of the second access point, the first access point may be aware that the priority of the second access point is higher than its own priority.
  • the station in the coverage of the first access point and the second access point may return a sector information for the sector information request message after receiving the sector information request message.
  • the sector information response message includes information of a sector currently used by the second access point. It should be noted that the station that is in the coverage of the first access point and the second access point learns the second by receiving a control frame sent by the second access point. Information about the sector currently used by the access point.
  • the sector information request message and the sector information response message may be transmitted in the form of a management frame or a custom frame.
  • the first access point determines a sector currently used by the second access point according to the received sector information response message.
  • the first access point needs to determine a sector currently used by the second access point having a higher priority than itself.
  • an access point with a lower priority (such as the third access point) needs to determine all access points (such as the fourth access point) whose priority is higher than itself. The sector used.
  • the first access point determines, according to the number of the sector currently used by the second access point or the direction of the main lobe, a sector that is currently used by itself.
  • the first access point learns the number of the sector currently used by the second access point, The sector number corresponding thereto is selected such that the interference between the sector corresponding to the selected number and the sector currently used by the second access point is minimized.
  • the first access point may further select, in the sector with the least interference, the station with the highest priority of the communication task as the station with which to communicate.
  • the first access point may select, in a sector in which a communication task exists, a communication duration that is not greater than a communication duration of a sector currently used by the second access point as a sector to be used by itself. It is said that the two communication durations are the smallest.
  • the access point having a lower priority adjusts its own sector based on the sector currently used by the access point having the higher priority.
  • the first access point communicates with a station by using the determined sector.
  • the first access point After the first access point determines a sector with a small interference with the sector according to a sector currently used by the second access point, the first access point communicates with a station that is to communicate with the determined sector. . At the same time, the second access point also communicates with the communication site on the sector it is currently using. In this way, the first access point and the second access point can communicate at the same time and the interference is small.
  • the joint scheduling method is applied to the occasion of wireless local area network communication.
  • the first access point After acquiring the information of the sector currently used by the second access point, the first access point does not select backoff to avoid interference, but according to the information of the sector currently used by the second access point, A sector that is less interfered with the sector currently used by the second access point is determined and communicated using the determined sector. In this way, due to proper scheduling, the sector currently determined by the first access point and the sector currently used by the second access point can communicate not only simultaneously but also less than a preset value.
  • a joint scheduling apparatus 61 includes:
  • the obtaining unit 611 is configured to obtain information about a sector currently used by the second access point
  • a determining unit 612 configured to determine, according to the information acquired by the acquiring unit, a sector currently used by the second access point, where the second access point is the same as the joint scheduling device Frequency and coverage of overlapping access points;
  • the determining unit 612 is further configured to determine, according to a sector currently used by the second access point, a sector that is currently used by the second access point, so that the determined sector and the second access point are currently The interference between the sectors used is less than the preset value;
  • the communication unit 61 3 is configured to communicate with the station by using the determined sector.
  • the information about the sector currently used by the second access point includes: a number of a sector currently used by the second access point or a direction of a main lobe.
  • the joint scheduling device is applied to the occasion of wireless local area network communication. After acquiring the information of the sector currently used by the second access point, the joint scheduling device does not select backoff to avoid interference, but according to the information of the sector currently used by the second access point. And determining a sector having less interference with a sector currently used by the second access point, and communicating using the determined sector. Thus, due to proper scheduling, the sector determined by the joint scheduling device and the sector currently used by the second access point can communicate not only simultaneously but also less than a preset value.
  • the obtaining unit 611 includes:
  • the first obtaining module 6111 is specifically configured to: obtain a media access control MAC address of a current communication site of the second access point;
  • the second obtaining module 6112 is configured to: acquire the second access point according to the correspondence between the MAC address acquired by the first obtaining module 61 11 and the pre-acquired MAC address and the information of the sector. Information about the sector currently in use.
  • the first obtaining module 6111 is specifically configured to: if the device 61 that is jointly scheduled is in the coverage of the second access point, the first acquiring module 6111 receives the control frame sent by the second access point. Or a data frame, or a control frame or a data frame sent by the current communication station of the second access point, where the control frame and the data frame include a MAC address of a current communication station of the second access point. Or, if the jointly scheduled device 61 is not in the coverage of the second access point, the first obtaining module 6111 is to the site that is in the coverage of the device 61 and the second access point that are both in the joint scheduling.
  • the response message includes the MAC of the current communication site of the second access point address.
  • the second obtaining module 6112 is specifically configured to: if the device 61 that is jointly scheduled is in the coverage of the second access point, the second acquiring module 6112 receives the periodic broadcast of the second access point.
  • the corresponding relationship advertisement message includes a correspondence between the MAC address and the information of the sector, according to the MAC address acquired by the first obtaining module 6111 and the corresponding relationship advertisement message, Obtaining information about a sector currently used by the second access point; or, if the jointly scheduled device 61 is not in the coverage of the second access point, the second obtaining module 6112 is simultaneously in joint scheduling.
  • the device 61 and the station within the coverage of the second access point send a correspondence request message, and receive the second access point by the device 61 and the second access point that are simultaneously in the joint scheduling.
  • Corresponding relationship response message returned by the site in the coverage the correspondence relationship response message includes a correspondence between the MAC address and the information of the sector, according to the A first acquiring module acquires the MAC address and the corresponding relationship information response message, acquiring a second sector of the access point currently being used.
  • the acquiring unit 611 is specifically configured to: if the device 61 of the joint scheduling is within the coverage of the second access point, the acquiring unit 611 receives the second interface And a control frame sent by the current communication station of the second access point, where the control frame includes information about a sector currently used by the second access point; or, if the jointly scheduled device 61 is not After the coverage of the second access point, the acquiring unit 611 sends a sector information request message to the station that is in the coverage of the joint scheduling device 61 and the second access point, and receives the a second information access message returned by the second access point by the device 61 that is in the joint scheduling device and the second access point, the sector information response message includes the second access Click on the information of the currently used sector.
  • the control frame is an RTS frame and/or a CTS frame.
  • the obtaining unit 61 1 is further configured to: obtain, after acquiring the information about the sector currently used by the second access point, the priority of the device 61 and the second access point;
  • the obtaining unit 611 is specifically configured to: when the priority of the second access point is higher than the priority of the device 61 that is jointly scheduled, acquire information about a sector currently used by the second access point.
  • the second access point is a plurality of access points that are in the same frequency as the jointly scheduled device 61 and have overlapping coverage.
  • the acquiring unit 611 is specifically configured to: obtain a priority in the second access point.
  • the information of the sector currently used by each access point is higher than the jointly scheduled device 61.
  • the determining unit is specifically configured to: determine, according to the information of the sector currently used by each access point that is higher in priority than the jointly scheduled device 61, the second access point acquired by the obtaining unit 611 a sector in the second access point whose priority is higher than that of the jointly scheduled device 61; according to the second access point, the priority is higher than the joint scheduling device 61
  • the sector currently used by the ingress determines the sector to be used by itself, so that the interference between the determined sector and the sector currently used by each access point is less than a preset value.
  • the determining unit is specifically configured to: select, from a sector having a communication task, a non-overlapping with a sector currently used by the second access point, and a relative difference of a main blade direction pointing angle is not less than a threshold.
  • the sector as the sector currently to be used by the joint scheduling device 61.
  • the determining unit 612 is specifically configured to: if there is a sector in the jointly scheduled device 61 having the communication task, there is no overlap with the sector currently used by the second access point, and the main lobe direction is pointed If the relative difference of the angles is not less than the threshold of the sector, the determining unit 612 selects the main lobe direction pointing angle from the plurality of the sectors and the main lobe direction pointing of the sector currently used by the second access point The sector with the largest relative difference in angles is the sector currently to be used by the joint scheduling device 61.
  • the determining unit 612 is specifically configured to: if there is a sector in the jointly scheduled device 61 having the communication task, there is no overlap with the sector currently used by the second access point, and the main lobe direction is pointed The determining unit 612 selects, from the plurality of the sectors, a sector whose communication duration is not greater than the communication duration of the sector currently used by the second access point, The sector to be used as the joint scheduling device 61.
  • the determining unit 612 is further configured to: if the relative difference between the main lobe direction pointing angle and the main lobe direction pointing angle of the sector currently used by the second access point is the largest, There are a plurality of stations having communication tasks, and the determining unit 612 selects the station with the highest communication task priority as the station that communicates with the jointly scheduled device 61.
  • an access point 71 includes: a transceiver 711, configured to acquire information about a sector currently used by a second access point;
  • the processor 712 is configured to determine, according to the information acquired by the transceiver, a sector currently used by the second access point, where the second access point is in the same frequency as the access point. And coverage points have overlapping access points;
  • the processor 712 is further configured to determine, according to a sector currently used by the second access point, a sector that is currently used by the second access point, so that the determined sector and the second access point are currently The interference between the sectors used is less than the preset value;
  • the transceiver 711 is further configured to communicate with the station by using the determined sector.
  • the information about the sector currently used by the second access point includes: a number of a sector currently used by the second access point or a direction of a main lobe.
  • the access point is applied to the occasion of wireless local area network communication. After obtaining the information of the sector currently used by the second access point, the access point does not select backoff to avoid interference, but according to the information of the sector currently used by the second access point, A sector that is less interfered with the sector currently used by the second access point is determined and communicated using the determined sector. Thus, due to proper scheduling, the sector determined by the access point and the sector currently used by the second access point can communicate not only simultaneously but also less than a preset value.
  • the transceiver 711 is specifically configured to: acquire a media access control MAC address of a current communication site of the second access point; and the MAC address and the pre-acquired MAC address. Corresponding relationship between the address and the information of the sector, acquiring information of the sector currently used by the second access point.
  • the transceiver 71 1 is specifically configured to: if the access point 71 is at the second access point, when the media access control MAC address of the current communication site is used to obtain the second access point
  • the transceiver 711 receives the control frame or data frame sent by the second access point, or receives a control frame or a data frame sent by the current communication station of the second access point, where the control frame is received.
  • the data frame includes a MAC address of the current communication site of the second access point; if the access point 71 is not within the coverage of the second access point, the transceiver 71 1 is simultaneously accessing Point 71 and the stated
  • the station within the coverage of the second access point sends a MAC address request message, and receives the second access point to return through the site that is simultaneously within the coverage of the access point 71 and the second access point.
  • MAC address response message the MAC address response message containing the MAC address of the current communication site of the second access point.
  • the transceiver 711 acquires information about a sector currently used by the second access point in a correspondence between the information according to the MAC address and a pre-acquired MAC address and a sector.
  • the transceiver 711 receives the corresponding relationship advertisement message periodically broadcasted by the second access point, and the corresponding relationship is notified.
  • the message includes a correspondence between the MAC address and the information of the sector, and the information about the sector currently used by the second access point is obtained according to the MAC address and the corresponding relationship advertisement message;
  • the ingress point 71 is not in the coverage of the second access point, and the transceiver 711 sends a correspondence request message to the station that is in the coverage of the access point 71 and the second access point, and receives the Corresponding relationship response message returned by the second access point by the site that is in the coverage of the access point 71 and the second access point, where the corresponding relationship response message includes the MAC address and the fan
  • the correspondence between the information based on the correspondence relationship between the MAC address and response message, acquiring the information of the second access point currently used by the sector.
  • the transceiver 711 is specifically configured to: if the access point 71 is within the coverage of the second access point, the transceiver 711 receives the second access a control frame sent by the current communication station of the second access point, where the control frame includes information about a sector currently used by the second access point; if the access point 71 is not in the second Within the coverage of the access point, the transceiver 711 sends a sector information request message to the station that is within the coverage of the access point 71 and the second access point, and receives the second access point. a sector information response message returned by the station in the coverage of the access point 71 and the second access point, where the sector information response message includes a fan currently used by the second access point District information.
  • control frame is an RTS frame and/or a CTS frame.
  • the transceiver 711 is further configured to: before the transceiver 711 acquires information about a sector currently used by the second access point, obtain a priority of the access point 71 and the second access point. Transceiver 71 1 Specifically, when the priority of the second access point is higher than the priority of the access point 71, acquiring information about a sector currently used by the second access point.
  • the second access point is a plurality of access points that are in the same frequency as the access point 71 and have overlapping coverage.
  • the transceiver 711 is specifically configured to: obtain a priority ratio of the second access point. The information of the sector currently used by each access point with a higher access point.
  • the processor 712 is specifically configured to: determine, according to information about a sector currently used by each access point that has a higher priority than the access point 71 in the second access point acquired by the transceiver 71 1 a sector currently used by each access point having a higher priority than the access point 71; and an access point higher than the access point 71 in the second access point
  • the sector used determines the sector to be used by itself, such that the interference between the determined sector and the sector currently used by each access point is less than a preset value.
  • the processor 712 is specifically configured to: select, from a sector having a communication task, a sector that does not overlap with a sector currently used by the second access point, and a relative difference between the main lobe direction pointing angles is not less than a threshold.
  • the sector as the sector currently to be used by the access point 71.
  • the processor 712 is specifically configured to: if there is a sector in the access point 71 that has a communication task, there are multiple sectors that are not currently used by the second access point, and the main lobe direction is directed at an angle
  • the processor 712 selects a main lobe direction pointing angle from the plurality of the sectors and a main lobe direction pointing angle of the sector currently used by the second access point.
  • the sector with the largest relative difference is the sector currently to be used by the access point 71.
  • the processor 712 is specifically configured to: if there is a sector in the access point 71 that has a communication task, there are multiple sectors that are not currently used by the second access point, and the main lobe direction is directed at an angle
  • the processor 712 selects, from the plurality of the sectors, a sector in which the communication duration is not greater than the communication duration of the sector currently used by the second access point, as the sector having the relative difference is not less than the threshold.
  • the processor 712 is further configured to: if the relative angle between the main lobe direction pointing angle and the main lobe direction pointing angle of the sector currently used by the second access point is the largest, There are a plurality of stations having communication tasks, and the processor 712 selects the station with the highest priority of the communication task as the station that communicates with the access point 71.
  • the various embodiments in the specification have been described in detail, and the same or similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
  • the description since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as the cells may or may not be physical. Units can be located in one place, or they can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solution of the embodiment. Further, in the drawings of the apparatus embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection therebetween, and specifically, one or more communication buses or signal lines can be realized. Those of ordinary skill in the art can understand and implement without the creative labor.
  • aspects of the present invention, or possible implementations of various aspects may be embodied as a system, method, or computer program product.
  • aspects of the invention, or possible implementations of various aspects may be in the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, etc.), or a combination of software and hardware aspects, They are collectively referred to herein as "circuits," “modules,” or “systems.”
  • aspects of the invention, or possible implementations of various aspects may take the form of a computer program product, which is a computer readable program code stored on a computer readable medium.
  • the computer readable medium can be a computer readable signal medium or a computer readable storage medium.
  • the computer readable storage medium includes, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing, such as random access memory (RAM), read only memory (ROM), Erase programmable read-only memory (EPR0M or flash memory), optical fiber, portable read-only memory (CD-ROM).
  • a processor in the computer reads a computer readable program stored in a computer readable medium
  • the sequence code enables the processor to perform the functional actions specified in each step or combination of steps in the flowchart; generating means for implementing the functional actions specified in each block of the block diagram or in a combination of blocks.
  • the computer readable program code can execute entirely on the user's computer, partly on the user's computer, as a separate software package, partly on the user's computer and partly on the remote computer, or entirely on the remote computer or server.
  • the functions noted in the various steps of the flowchart, or in the blocks in the block diagrams may not occur in the order noted. For example, two steps, or two blocks shown in succession, may be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved.

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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil d'ordonnancement commun, qui appartiennent au domaine des communications sans fil et qui permettent de garantir que des points d'accès adjacents puissent effectuer simultanément une communication normale. Le procédé consiste à : acquérir, au moyen d'un premier point d'accès, des informations au sujet d'un secteur actuellement utilisé par une deuxième point d'accès, et déterminer, au moyen du premier point d'accès, le secteur actuellement utilisé par le deuxième point d'accès d'après les informations, le deuxième point d'accès étant un point d'accès qui a la même fréquence que le premier point d'accès et qui a une plage de couverture chevauchant le premier point d'accès ; déterminer, au moyen du premier point d'accès, un secteur que celui-ci doit utiliser actuellement d'après le secteur actuellement utilisé par le deuxième point d'accès, afin que les interférences entre le secteur déterminé et le secteur actuellement utilisé par le deuxième point d'accès puissent être inférieures à une valeur prédéfinie ; et communiquer, au moyen du premier point d'accès, avec une station appartenant à celui-ci en utilisant le secteur déterminé. La présente invention s'utilise pour la communication sur les réseaux locaux sans fil.
PCT/CN2013/086086 2013-10-28 2013-10-28 Procédé et appareil d'ordonnancement commun Ceased WO2015061949A1 (fr)

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CN201380078491.5A CN105409266B (zh) 2013-10-28 2013-10-28 一种联合调度的方法和装置
PCT/CN2013/086086 WO2015061949A1 (fr) 2013-10-28 2013-10-28 Procédé et appareil d'ordonnancement commun

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PCT/CN2013/086086 WO2015061949A1 (fr) 2013-10-28 2013-10-28 Procédé et appareil d'ordonnancement commun

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WO2021156662A1 (fr) * 2020-02-06 2021-08-12 Deeyook Location Technologies Ltd. Collecte anonyme de transmissions directionnelles
WO2021189930A1 (fr) * 2020-03-23 2021-09-30 中兴通讯股份有限公司 Procédé de sélection de nœud, dispositif électronique et support d'enregistrement
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US11240846B2 (en) 2020-02-06 2022-02-01 Deeyook Location Technologies Ltd. Anonymous collection of directional transmissions
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WO2021189930A1 (fr) * 2020-03-23 2021-09-30 中兴通讯股份有限公司 Procédé de sélection de nœud, dispositif électronique et support d'enregistrement
US12457639B2 (en) 2022-10-31 2025-10-28 Deeyook Location Technologies Ltd Anonymous collection of broadband directional transmissions

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