Abstract: Embodiments of the present invention provide a time series data processing method and apparatus, where the method includes: first, receiving, by a common services entity CSE, a request message sent by an application entity AE, where the request message carries a first operation type and at least one piece of first time series data, or carries a second operation type and at least one filter criterion, the first operation type is an insert operation, a delete operation, or a query operation, and the second operation type is a delete operation or a query operation; and then, processing, by the common services entity CSE, a time series data set according to the request message, and sending a processing result to the application entity AE.

Abstract: The method includes: sending, by an access point (AP), a multicast association identifier (MID) of a multicast group to a station (STA), where one multicast group has one or more MIDs, and each MID corresponds to one multicast group and a receiving period of a STA in the multicast group; sending, by the AP, a delivery traffic indication map (DTIM) beacon frame to the STA, where the DTIM beacon frame includes the MID and is used for indicating a multicast group that has multicast information to be sent to the STA; and sending, by the AP, the multicast information of the multicast group, where the multicast information carries information about the MID or information associated with the MID, and the multicast information is received by the STA. The technical solutions of the present invention reduce resource waste of a STA.

Abstract: A multicast packet transmission method and an apparatus relate to the communications field and define how multicast data is sent to stations (STAs) using a multicast association identifier (AID). The method includes allocating, by an access point (AP), a corresponding multicast AID to STAs, where the multicast AID is set in a short media access control (MAC) header of a multicast packet; and sending, by the AP, the multicast packet to at least two STAs, so that the at least two STAs determine, according to the multicast AID, whether the multicast packet is a multicast packet corresponding to the at least two STAs, where the at least two STAs are in a same multicast group.

Abstract: A multicast packet transmission method and an apparatus are provided that relate to the communications field and define how multicast data is sent to stations (STAs) by using a multicast association identifier (AID). The method includes: allocating, by an access point (AP), a corresponding multicast AID to STAs, where the multicast AID is set in a short media access control (MAC) header of a multicast packet; and sending, by the AP, the multicast packet to at least two STAs, so that the at least two STAs determine, according to the multicast AID, whether the multicast packet is a multicast packet corresponding to the at least two STAs, where the at least two STAs are in a same multicast group.

Abstract: The present invention provides a method and device for acquiring and transmitting data by an STA in a wireless local area network. The method includes: transmitting, by the STA, a PS-Poll, and receiving downlink data returned by the AP upon receipt of the PS-Poll, in a reserved time period within a current beacon interval according to a TIM contained in a beacon, after learning that the AP has the downlink data of the STA according to the received beacon, wherein the reserved time period is a period of time interval within the beacon interval; retransmitting, by the STA, the PS-Poll after the reserved time period to acquire the downlink data, if the STA can not successfully receive the downlink data within the reserved time period. Through the above solution, a mechanism is provided to address a situation that unsuccessful receiving/transmission of data can not be handled.

Abstract: The present invention provides a method for transmitting data, a method for receiving data and a device. The transmitting method includes: transmitting, by an STA, characterizing information to an AP, the characterizing information is used to characterize a maximum transmission delay allowed by uplink data to be transmitted by the STA; receiving, by the STA, transmission time that is specified for the STA and returned by the AP within the maximum transmission delay allowed by the uplink data to be transmitted by the STA, wherein the transmission time is within a range of the maximum transmission delay allowed by the uplink data to be transmitted by the STA; and transmitting, by the STA, the uplink data to the AP within the transmission time. Technical solutions of the present invention solve a problem of data transmission in an emergency application scenario, and guarantee requirements placed by emergency data upon transmission delay.

Abstract: Embodiments of the present invention provide a method and apparatus for receiving fragments as well as a method and apparatus for transmitting fragments. The method for receiving fragments includes: receiving a group of fragments from a transmitter through a first channel, where the transmitter suspend transmitting a next group of fragments after the group of fragments is transmitted; and transmitting one or a plurality of first acknowledgement messages to the transmitter through the first channel immediately after the group of fragments are received. According to embodiments of the present invention, the acknowledgement messages may be immediately transmitted to the transmitter through a current channel after one group of fragments are received through the current channel, thereby avoiding the delay of a fragment receiving and transmitting process, which is caused by the competition and occupation of the channel by other nodes, and thus improving transmission efficiency.

Abstract: A method and an apparatus for setting a network node location. The method is applied in a router in a ZigBee network and includes acquiring, by the router, a network parameter of at least one network device in a network connecting to the router; calculating the number of network parameters meeting a predefined threshold condition; mapping the number of the network parameters meeting the predefined threshold condition to corresponding indication information, wherein the indication information indicates deployment performance of the router in the network; and providing the indication information for a user, wherein the indication information is used to instruct the user to set a location for the router in the network.

Abstract: Embodiments of the present application disclose a communication method, including: a station performs association certification with access points, wherein the access points at least includes a first access point and a second access point; the station sends sequence numbers to the access points; the station broadcasts a communication message for enabling the access points to return reply messages to the station according to the sequence numbers in sequence, after receiving the communication message; the station receives a reply message returned by at least one access point, and performs data communication with the at least one access point which returns the reply message. The present application may be used for solving the problems that in an OBSS system, the probability of STA in an overlapped area for competing to obtain a channel is small and the throughput is low.

Abstract: The present invention provides a method and a device for interleaving processing in a WLAN system, and relates to the field of communications technologies. The method includes: obtaining, by a WLAN device, a predetermined number of identifiers of valid positions from any sub-interleaving processing contained in an interleaving processing; determining valid input positions of the interleaving processing according to the identifiers of the valid positions; transmitting data bits to be transmitted in the valid input positions, and transmitting bit 0 and/or bit 1 or no data bit in other non-valid input positions of the interleaving processing other than the valid input positions; modulating data bits transmitted in interleaving processing output positions to obtain modulation signals and mapping the modulation signals onto the corresponding data sub-carriers respectively. The present invention can be applied in interleaving processing of data bits to be transmitted.

Abstract: Embodiments of the present application provide an interference processing method and device. The method includes: a first access point (AP) receiving a frame sent by a second AP, the frame carrying downlink data load of the second AP, and intra-frequency interference existing between the first AP and the second AP; and the first AP adjusting, according to downlink data load of the first AP and the downlink data load of the second AP, a channel bandwidth used for performing data communication with a station (STA), so as to reduce the probability that the first AP and the second AP transmits data by using same channel. By using the method and the device for dynamically adjusting a bandwidth, intra-frequency interference of devices in OBSS can be reduced.

Abstract: Embodiments of the present invention provide a multicast information transmission method and a device. The method includes: sending, by an access point (AP), a multicast association identifier (MID) of a multicast group to a station (STA), where the multicast group has one or more MIDs, and each MID corresponds to one multicast group and a receiving period of a STA in the multicast group; sending, by the AP, a delivery traffic indication map (DTIM) beacon frame to the STA, where the DTIM beacon frame includes the MID and is used for indicating a multicast group that has multicast information to be sent to the STA; and sending, by the AP, the multicast information of the multicast group, where the multicast information carries the MID or information associated with the MID, and the multicast information is received by the STA. The technical solutions of the present invention reduce resource waste of a STA.

Abstract: The present invention provides a method for transmitting data, a method for receiving data and a device. The transmitting method includes: transmitting, by an STA, characterizing information to an AP, the characterizing information is used to characterize a maximum transmission delay allowed by uplink data to be transmitted by the STA; receiving, by the STA, transmission time that is specified for the STA and returned by the AP within the maximum transmission delay allowed by the uplink data to be transmitted by the STA, wherein the transmission time is within a range of the maximum transmission delay allowed by the uplink data to be transmitted by the STA; and transmitting, by the STA, the uplink data to the AP within the transmission time. Technical solutions of the present invention solve a problem of data transmission in an emergency application scenario, and guarantee requirements placed by emergency data upon transmission delay.

Abstract: The present invention provides a method and a device for interleaving processing in a WLAN system, and relates to the field of communications technologies. The method includes: obtaining, by a WLAN device, a predetermined number of identifiers of valid positions from any sub-interleaving processing contained in an interleaving processing; determining valid input positions of the interleaving processing according to the identifiers of the valid positions; transmitting data bits to be transmitted in the valid input positions, and transmitting bit 0 and/or bit 1 or no data bit in other non-valid input positions of the interleaving processing other than the valid input positions; modulating data bits transmitted in interleaving processing output positions to obtain modulation signals and mapping the modulation signals onto the corresponding data sub-carriers respectively. The present invention can be applied in interleaving processing of data bits to be transmitted.

Abstract: A multicast information transmission method and device. The method includes sending a delivery traffic indication map (DTIM) beacon frame to a station (STA), where the DTIM beacon frame is used to indicate multicast groups which have multicast information to be sent; and according to an order of a multicast identifier (ID) of the multicast groups which have multicast information to be sent, in preset sending intervals, sending multicast information of the multicast groups which have multicast information to be sent, so that the STA receives multicast information of a multicast group to which the STA belongs in a receiving interval corresponding to the multicast group to which the STA belongs. The technical solutions in the present invention reduce STA resource waste.

Abstract: The present invention provides a method and device for acquiring and transmitting data by an STA in a wireless local area network. The method includes: transmitting, by the STA, a PS-Poll, and receiving downlink data returned by the AP upon receipt of the PS-Poll, in a reserved time period within a current beacon interval according to a TIM contained in a beacon, after learning that the AP has the downlink data of the STA according to the received beacon, wherein the reserved time period is a period of time interval within the beacon interval; retransmitting, by the STA, the PS-Poll after the reserved time period to acquire the downlink data, if the STA can not successfully receive the downlink data within the reserved time period. Through the above solution, a mechanism is provided to address a situation that unsuccessful receiving/transmission of data can not be handled.

Abstract: A method includes: obtaining, by a transmit end, switching information of a STA, where the switching information includes that the STA switches to a TIM STA or the STA switches to a Non-TIM STA; and sending, by the transmit end, a first message to a receive end, where the first message includes a flag bit, and the flag bit identifies the switching information. According to the embodiments of the present invention, both a STA and an AP can learn switching of a STA working mode, so that correct switching of the STA can be implemented, and the AP can perform correct processing according to a switching situation of the STA.

Abstract: Method includes: determining, by a Access Point, AP, a duration of a time segment according to the number of sensor stations and a size of uplink data and a data transmission rate of the sensor stations in a network; wherein in the time segment, only sensor stations are allowed to perform access contention; sending, by the AP, a beacon frame, wherein the beacon frame carries information about the time segment.

Abstract: The present invention provides a method and device for allocating WLAN channel resources and a wireless local area network communication system. The method includes: obtaining subcarrier allocation information, where the subcarrier allocation information is used to identify a subcarrier or a subcarrier group used to bear data, where channel quality of a subchannel where the subcarrier or the subcarrier group is located is greater than or equal to a judgment threshold; and sending data on the subcarrier according to the subcarrier allocation information. The present invention reduces a waste of transmit power of a station, and can increase a modulation order because no restriction is imposed by pull-down of a subchannel with very poor channel quality.

Abstract: A multicast packet transmission method and an apparatus are provided that relate to the communications field and define how multicast data is sent to stations (STAs) by using a multicast association identifier (AID). The method includes: allocating, by an access point (AP), a corresponding multicast AID to STAs, where the multicast AID is set in a short media access control (MAC) header of a multicast packet; and sending, by the AP, the multicast packet to at least two STAs, so that the at least two STAs determine, according to the multicast AID, whether the multicast packet is a multicast packet corresponding to the at least two STAs, where the at least two STAs are in a same multicast group.