Alibaba Group Holding Limited

Zhen Tao

Xiaobo Yu

Dapeng Liu

Embodiments of the present disclosure provide methods and devices for communication by a terminal. The method can include: sending a first message to a server, the first message comprising command information, the command information comprising first state information of the terminal, and the first state information comprising at least one of mobile attribute information, moving state information, mobile state start information, stationary state start information, or moving direction state information, wherein the mobile attribute information is used to indicate that the terminal is a mobile terminal, the moving state information is used to indicate that the terminal is in a mobile state, the mobile state start information is used to indicate a transition of the terminal from a stationary state to a mobile state, the stationary state start information is used to indicate a transition of the terminal from a mobile state to a stationary state, and the moving direction information is used to indicate direction information of movement of the terminal; and receiving a second message sent by the server, wherein the second message is used to confirm the at least one of first state information in the command information.

Method and apparatus for communication between a terminal and a server

The present disclosure provides methods, apparatuses and systems for monitoring a network connectivity status of an enrollee device. According to one exemplary method, a configurator device acquires at least one channel. The configurator device sends a request packet to the enrollee device using the at least one channel. The request packet can include at least one of: a first request packet for querying whether the enrollee device is connected to a hotspot, a second request packet for querying whether there is a network failure in the enrollee device, or a third request packet for querying a hotspot list of all hotspots found by the enrollee device. The configurator device can acquire network information of the enrollee device according to a corresponding reply packet returned by the enrollee device. Accordingly, a user can determine whether an enrollee device is connected to a network, and the connectivity status of the enrollee device.

Method, apparatus and system for monitoring network connectivity status of network device

Embodiments of the present disclosure provide a communication method and a communication apparatus. The method incudes acquiring, from a preset public network access channel, unique network identification information of a region where the terminal is located; determining a spectrum standard corresponding to the region where the terminal is located according to the public network access channel and the unique network identification information; and communicating according to the spectrum standard.

Communication method and apparatus

Communication methods and devices include opening a plurality of detection windows according to a preset detection period; in response to having detected a preamble of a radio frame in at least a preset number of continuous detection windows of the plurality of detection windows, switching the receiving end device to an awake state; and receiving the radio frame while the receiving end device is operating in the awake state.

Embodiments of the present disclosure provide methods and devices for communication by a terminal. The method can include: sending, by the terminal, a first data frame to a relay device in a first mode, the first data frame comprising a first preamble and a first message information set, and the first preamble being used to wake up the relay device; sending, by the terminal, a second data frame to the relay device in the first mode, the second data frame comprising a second preamble and a second information set, the second data frame being sent after the terminal has sent the first data frame and a first time interval has elapsed, and the length of the second preamble being less than that of the first preamble; and receiving, by the terminal, a third data frame sent by the relay device in the first mode, the third data frame being sent to the terminal after being received from the base station by the relay device.

Method and apparatus for communication between a terminal and a base station

Embodiments of the present application provide a method and apparatus of communication between a terminal and a base station. The communication method between a terminal and a base station performed by the terminal includes: sending, by the terminal, a network access request frame with a first preamble to a relay device. The relay device may be configured to receive the network access request frame according to the first preamble, send the network access request frame with a second preamble to the base station, and receive a network access response frame returned by the base station. The length of the second preamble may be smaller than that of the first preamble. The communication method may further includes receiving, by the terminal, the network access response frame sent by the relay device.

Method and apparatus of communication between terminal and base station, and network access method and apparatus of a terminal

The frequency band of an uplink channel of the first node is identical to the frequency band of a downlink channel of the second node. The frequency band of the uplink channel of the first node is different from the frequency band of a downlink channel of the first node. Uplink data from the terminal is received through the uplink channel of the first node; when the terminal is an intra-frequency terminal, downlink data is transmitted to the terminal through the downlink channel of the second node; and when the terminal is an inter-frequency terminal, downlink data is transmitted to the terminal through the downlink channel of the first node. The wireless communication method is compatible with intra-frequency terminals and inter-frequency terminals, and the inter-frequency terminal transmits uplink data through the first node and receive downlink data through the second node, thus implementing duplex communication and improving communication efficiency.

Wireless communication method and device

A method including a network configuration device acquiring at least one channel including at least one of the following channels: a target channel and at least one initial channel, wherein the target channel is a channel used when the network distribution device is connected to a hotspot successfully; the network configuration device sending a request message to the network distribution device through the at least one channel; and the network configuration device determining, in the case of receiving a response packet, network state information of the network distribution device based on the response packet, wherein the network distribution device feeds back the response packet based on the request message. The present disclosure has solved the technical problem in the conventional techniques that users fail to determine whether the network distribution device has accessed a network successfully when the network distribution device is accessing the network.

Method, apparatus, and system for monitoring network access state of network distribution device

Data transmission methods, apparatuses, base stations, and servers are provided, and relate to the field of the Internet of things. A data transmission method includes determining a system time difference between a first base station and a second base station based on an actual transmission time length of a wireless frame; modifying a sending time of first data according to the system time difference, the sending time of the first data being determined according to a receiving time of second data at the first base station; and sending the first data from the second base station according to the modified sending time of the first data. The present disclosure can reduce the data transmission cost, and improves the reliability of data transmission.

Data transmission methods, apparatuses, base stations and servers

Communication between a terminal and a base station, and network access methods and apparatuses for a terminal are provided. The communication between the terminal and the base station includes: the terminal sending a network access request frame with a first preamble to a relay device, the relay device being configured to receive the network access request frame according to the first preamble, send the network access request frame with a second preamble to the base station, and receive a network access response frame returned by the base station, a length of the second preamble being smaller than a length of the first preamble; and the terminal receiving the network access response frame sent by the relay device.

Communication between terminal and base station, and network access method and apparatus for terminal

The present application discloses communication methods and systems. The communication method includes: receiving a first uplink data frame from a terminal operating in a second mode, wherein the first uplink data frame comprises a first mode identifier and a terminal identifier, and the first mode identifier is used to indicate to a base station that the terminal is operating in a first mode; determining that the terminal operates in the second mode, according to a first information set and the terminal identifier; sending the first uplink data frame to the base station; receiving a first downlink data frame from the base station; and forwarding the first downlink data frame to the terminal.

Communication method and apparatus based on relay device

The present application discloses a communication method performed by a relay device. The method includes: receiving a first uplink data frame from a terminal, the first uplink data frame comprising information indicating a first period; determining a length of a first preamble according to the first period and a first time length, the first time length being equal to a length of a third preamble plus a second time length; sending a second downlink data frame to the terminal, the second downlink data frame comprising the first preamble; and receiving a first downlink data frame from a base station, the first downlink data frame comprising a second preamble, wherein a length of the second preamble is less than or equal to each of the length of the first preamble and the length of the third preamble.

Communication method and apparatus based on relay device, and communication method and apparatus between terminal and base station

The present disclosure provides a terminal, a base station and methods for communications between the terminal and the base station, and for the terminal to access a network. According to one exemplary method, a terminal sends a first message to a base station via a first channel, the first message being used to request access to a network. The terminal receives a second message from a first base station via a second channel, the second message including channel plan information for determining a first network connection plan. The terminal determines the first network connection plan according to the channel plan information and accesses the network via a second base station according to the first network connection plan. Channel use plan of the base station can be obtained through signaling interactions in the process of network connection. The terminal can determine whether the network can be accessed and access the network accordingly.

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Hangzhou, China

Zhen Tao