Abstract: A method and an apparatus for joining a centralized cluster is disclosed. The method includes: receiving a DMG Beacon frame sent by a first S-AP, where the DMG Beacon frame includes cluster information of the first S-AP; measuring, according to the cluster information of the first S-AP, signal quality and a state of each Beacon SP included in a BI of the first S-AP; if a Beacon SP whose state is an idle state is obtained by means of measurement, associating the Beacon SP with the first S-AP as a non-PCP/non-AP station, and receiving an Announce frame sent by the first S-AP; selecting one S-AP from the first S-AP and the second S-AP as a to-be-joined S-AP; and joining a centralized cluster of the to-be-joined S-AP.

Abstract: The invention provide a control method, including: obtaining a time division scheme of a STA in a next cruise monitoring period, where the next cruise monitoring period includes N adjustment periods and N monitoring periods determined by means of division according to N preset points; configuring control information according to the time division scheme, where the control information is for controlling an operating status of the STA in each adjustment period in the next cruise monitoring period; and sending the control information to the STA.

Abstract: A method and an apparatus for joining a centralized cluster is disclosed. The method includes: receiving a DMG Beacon frame sent by a first S-AP, where the DMG Beacon frame includes cluster information of the first S-AP; measuring, according to the cluster information of the first S-AP, signal quality and a state of each Beacon SP included in a BI of the first S-AP; if a Beacon SP whose state is an idle state is obtained by means of measurement, associating the Beacon SP with the first S-AP as a non-PCP/non-AP station, and receiving an Announce frame sent by the first S-AP; selecting one S-AP from the first S-AP and the second S-AP as a to-be-joined S-AP; and joining a centralized cluster of the to-be-joined S-AP.

Abstract: A network controller includes: an acquiring unit, configured to acquire scheduling information of an adjacent network controller of a first network controller; a determining unit, configured to determine a status of time and frequency overlapping between another access period and a first SP; a scheduling unit, configured to set guard period configuration information of the first SP according to an interfered status of the first SP and the overlapping status determined by the determining unit; and a first sending unit, configured to send the guard period configuration information of the first SP to a station.

Abstract: The present invention relates to the field of communications technologies, and discloses a beam tracking method, apparatus, and system, so as to ensure rapid discovery and to switch from an optimal link to a backup link in time, or switch from a backup link to an optimal link, thereby effectively improving a throughput of a system link. The beam tracking method includes: transmitting, by a beam tracking initiator, a beam tracking request to a beam tracking responder; receiving, by the beam tracking initiator, an enhanced beam tracking training auxiliary sequence transmitted, according to the enhanced beam tracking request, by the beam tracking responder; and when it is determined according to a reception detection result of the enhanced beam tracking training auxiliary sequence that it is necessary to switch to a backup beam link, transmitting, by the beam tracking initiator, first link switching information to the beam tracking responder.

Abstract: A multi-video stream transmission method and a device, where an access point sets an initial sending time and a sending period of an intra frame (I frame) of each station (STA) associated with the access point, and allocates an I frame service period and a predictive frame (P frame) service period to each STA according to the initial sending time and the sending period of the I frame of each STA, where each STA exclusively occupies a channel in the I frame service period and the P frame service period such that I frame sending time of STAs are staggered, network load balance is achieved, and it is ensured that a latency of each STA meets a quality of service (QoS) requirement.

Abstract: The present invention relates to the field of communications technologies, and discloses a beam tracking method, apparatus, and system, so as to ensure rapid discovery and to switch from an optimal link to a backup link in time, or switch from a backup link to an optimal link, thereby effectively improving a throughput of a system link. The beam tracking method includes: transmitting, by a beam tracking initiator, a beam tracking request to a beam tracking responder; receiving, by the beam tracking initiator, an enhanced beam tracking training auxiliary sequence transmitted, according to the enhanced beam tracking request, by the beam tracking responder; and when it is determined according to a reception detection result of the enhanced beam tracking training auxiliary sequence that it is necessary to switch to a backup beam link, transmitting, by the beam tracking initiator, first link switching information to the beam tracking responder.

Abstract: Embodiments of the present invention disclose a clustering method, including: adjusting, by a first device, a beginning of its own first small bandwidth beacon transmission interval to be aligned with a selected empty Beacon SP, setting its own BI to be equal to a synchronization device beacon interval S-BI, and joining, after accordingly adjusting an interval VBI for sending a beacon frame on a large bandwidth channel and an interval SBBI for sending a beacon frame on a small bandwidth channel, a target small bandwidth cluster; or sending a beacon frame including a cluster probe IE over a large bandwidth channel, requesting, by using the cluster probe IE, a synchronization PCP to return cluster synchronization information and control information, and joining the target large bandwidth cluster according the information and a second PCP.

Abstract: Examples of the present disclosure provide a channel access period allocation method. The method includes: receiving, by an access point (AP), first information sent by a first station (STA) for requesting a dynamic service period (DSP) from the AP; and sending, by the AP, second information to the first STA to instruct the first STA to send a data frame to the AP in a first DSP, where a start time of the first DSP falls within a first preset time period following an end time of an SP of the first STA, and the first DSP requested by the first STA is pre-allocated to a second STA having a priority that is lower than that of the first STA, where a time delay of the first STA for sending the data frame to the AP satisfies a time delay requirement of a quality of service QoS in the first preset time period.

Abstract: The present invention provides a method for selecting a network controller and a station device. Supported channel width sets of multiple station STA devices are acquired; a PCP factor of the each STA device is generated according to a supported channel width set and an acquired directional multi-gigabit DMG capability information element of the each STA device, where the PCP factor includes the supported channel width set; a STA device with a largest PCP factor is selected as a PCP. Using the method for selecting a PCP and the STA device provided in the present invention can improve reliability of a wireless local area network WLAN.

Abstract: A multi-transceiver configuration method, a multi-transceiver channel multiplexing method, and an apparatus are disclosed. The multi-transceiver configuration method includes: an access point obtains maximum data transfer rates Ri(n) of N terminals STAis on sub-channels n in a specified sub-channel combination, where 1?i?N, and N is a positive integer greater than 1; and calculates a channel access time Ti(n) required by the STAi for transmitting an average data volume on the sub-channel n, and when the specified sub-channel combination manner meets an allocation requirement of the N STAis, the access point configures at least one transceiver for each sub-channel n in the specified sub-channel combination.

Abstract: A method for implementing a decentralized clustering mechanism includes: reserving, by a first wireless device located on a first channel, multiple first scheduled service periods from a first data transfer interval; switching, by the first wireless device, to a second channel within the first scheduled service periods, and transmitting a probe frame over the second channel, where the probe frame includes a cluster probe information element; reserving, by the first wireless device, multiple second scheduled service periods from a second data transfer interval according to timing information in the cluster probe information element; when a response frame from a second wireless device is received within the second scheduled service periods, identifying, by the first wireless device, whether an empty beacon scheduled service period exists; and if exists, transmitting, by the first wireless device, a beacon frame within the empty beacon scheduled service period.

Abstract: A multi-video stream transmission method and a device, where an access point sets an initial sending time and a sending period of an intra frame (I frame) of each station (STA) associated with the access point, and allocates an I frame service period and a predictive frame (P frame) service period to each STA according to the initial sending time and the sending period of the I frame of each STA, where each STA exclusively occupies a channel in the I frame service period and the P frame service period such that I frame sending time of STAs are staggered, network load balance is achieved, and it is ensured that a latency of each STA meets a quality of service (QoS) requirement.

Abstract: Embodiments of the present invention disclose a clustering method, including: adjusting, by a first device, a beginning of its own first small bandwidth beacon transmission interval to be aligned with a selected empty Beacon SP, setting its own BI to be equal to a synchronization device beacon interval S-BI, and joining, after accordingly adjusting an interval VBI for sending a beacon frame on a large bandwidth channel and an interval SBBI for sending a beacon frame on a small bandwidth channel, a target small bandwidth cluster; or sending a beacon frame including a cluster probe IE over a large bandwidth channel, requesting, by using the cluster probe IE, a synchronization PCP to return cluster synchronization information and control information, and joining the target large bandwidth cluster according the information and a second PCP.

Abstract: Embodiments of the present invention disclose a clustering method, including: adjusting, by a first device, a beginning of its own first small bandwidth beacon transmission interval to be aligned with a selected empty Beacon SP, setting its own BI to be equal to a synchronization device beacon interval S-BI, and joining, after accordingly adjusting an interval VBI for sending a beacon frame on a large bandwidth channel and an interval SBBI for sending a beacon frame on a small bandwidth channel, a target small bandwidth cluster; or sending a beacon frame including a cluster probe IE over a large bandwidth channel, requesting, by using the cluster probe IE, a synchronization PCP to return cluster synchronization information and control information, and joining the target large bandwidth cluster according the information and a second PCP.

Abstract: A network controller includes: an acquiring unit, configured to acquire scheduling information of an adjacent network controller of a first network controller; a determining unit, configured to determine a status of time and frequency overlapping between another access period and a first SP; a scheduling unit, configured to set guard period configuration information of the first SP according to an interfered status of the first SP and the overlapping status determined by the determining unit; and a first sending unit, configured to send the guard period configuration information of the first SP to a station.

Abstract: The present invention discloses an apparatus and a method for scheduling a timeslot. The apparatus includes: a first acquiring module, configured to acquire first interference information; a second acquiring module, configured to acquire second interference information; a third acquiring module, configured to acquire timeslot scheduling information of a link of the at least one second BSS, where the timeslot scheduling information is used to indicate information about a scheduled timeslot of the link of the at least one second BSS; and a scheduling module, configured to schedule a timeslot for a link of the first BSS according to the first interference information, the second interference information, and the timeslot scheduling information. According to the apparatus and the method for scheduling a timeslot in embodiments of the present invention, interference to a link of another network can be avoided actively, and a timeslot can be scheduled properly.

Abstract: A method and an apparatus for joining a centralized cluster is disclosed. The method includes: receiving a DMG Beacon frame sent by a first S-AP, where the DMG Beacon frame includes cluster information of the first S-AP; measuring, according to the cluster information of the first S-AP, signal quality and a state of each Beacon SP included in a BI of the first S-AP; if a Beacon SP whose state is an idle state is obtained by means of measurement, associating the Beacon SP with the first S-AP as a non-PCP/non-AP station, and receiving an Announce frame sent by the first S-AP; selecting one S-AP from the first S-AP and the second S-AP as a to-be-joined S-AP; and joining a centralized cluster of the to-be-joined S-AP.

Abstract: The present invention discloses a method for truncating a service period, a network controller, and a station. The method includes: determining allocation control information of an service period, where the allocation control information includes a truncation indication and a truncation type indication; and sending the allocation control information to a station, so that the station uses the service period to perform communication, and truncates the service period according to a truncation type indicated by the truncation type indication when the service period is surplus and the truncation indication indicates that the service period can be truncated. According to the method for truncating a service period, the network controller, and the station in embodiments of the present invention, interference to communication after the service period is truncated can be reduced.

Abstract: The present invention relates to the field of communications technologies, and discloses a beam tracking method, apparatus, and system, so as to ensure rapid discovery and to switch from an optimal link to a backup link in time, or switch from a backup link to an optimal link, thereby effectively improving a throughput of a system link. The beam tracking method includes: transmitting, by a beam tracking initiator, a beam tracking request to a beam tracking responder; receiving, by the beam tracking initiator, an enhanced beam tracking training auxiliary sequence transmitted, according to the enhanced beam tracking request, by the beam tracking responder; and when it is determined according to a reception detection result of the enhanced beam tracking training auxiliary sequence that it is necessary to switch to a backup beam link, transmitting, by the beam tracking initiator, first link switching information to the beam tracking responder.