Communications method, device, and system

A communication method, comprising:

• receiving, by a first small base station, data bearer configuration information for transmitting user data, from a first local controller;
• establishing, by the first small base station, a data transmission channel with the Internet upon determining that user data are to be transmitted directly over the Internet, according to the received data bearer configuration information;
• establishing, by the first small base station, a data transmission channel with a first local gateway upon determining that the first local gateway participates in transmission of user data, according to the received data bearer configuration information;
• and
• transmitting, by the first small base station, the user data over the established data transmission channel;
• wherein the first small base station is hosted by the first local controller;
• the first small base station is hosted by the first local gateway;
• the data bearer configuration information comprises protocol stack configuration information of the first small base station;
• and before the first small base station transmits the user data over the established data transmission channel, the method further comprises:
• processing, by the first small base station, the user data according to the received protocol stack configuration information;
• and
• transmitting, by the first small base station, the user data over the established data transmission channel comprises:
• transmitting, by the first small base station, the processed user data over the data transmission channel established between the first small base station and the first local gateway;
• wherein the protocol stack configuration information of the first small base station is configured for the first small base station by the first local controller according to a network condition, and a performance of a backhaul link between the first small base station and the first local gateway;
• and
• the protocol stack configuration information is configured in any one of the following modes:
• in a first mode, a Physical (PHY) layer, a Media Access Control (MAC) layer, a Radio Link Control (RLC) layer, and a Packet Data Convergence Protocol (PDCP) layer are located in the first local gateway;
• in a second mode, the PHY layer is located in the first small base station, and the MAC, RLC, and PDCP layers are located in the first local gateway;
• in a third mode, the PHY and MAC layers are located in the first small base station, and the RLC, and PDCP layers are located in the first local gateway;
• and
• in a fourth mode, the PHY, MAC and RLC layers are located in the first small base station, and the PDCP layer is located in the first local gateway.

A communication method, comprising:

• receiving, by a first local gateway, data bearer configuration information for transmitting user data, from a first local controller;
• establishing, by the first local gateway, a data transmission channel according to the received data bearer configuration information;
• and
• transmitting, by the first local gateway, the user data over the established data transmission channel;
• wherein establishing, by the first local gateway, the data transmission channel according to the received data bearer configuration information comprises:
• determining, by the first local gateway, at least one first small base station to participate in transmission of user data, according to the received data bearer configuration information;
• and
• establishing, by the first local gateway, the data transmission channel with the determined at least one first small base station;
• wherein the first small base station is hosted by the first local gateway and the first local controller;
• and
• establishing, by the first local gateway, a data transmission channel with the Internet upon determining that user data are to be transmitted directly over the Internet, according to the received data bearer configuration information;
• establishing, by the first local gateway, a data transmission channel with a core network upon determining that the core network participates in transmission of user data, according to the received data bearer configuration information;
• establishing, by the first local gateway, a data transmission channel with at least one second small base station upon determining that the at least one second small base station participates in transmission of user data, according to the received data bearer configuration information;
• establishing, by the first local gateway, a data transmission channel with a second local gateway upon determining that the second local gateway participates in transmission of user data, according to the received data bearer configuration information, so that the first local gateway transmits user data of a first user equipment to a second user equipment through the second local gateway, and receives user data, transmitted from the second user equipment to the first user equipment, through the second local gateway;
• wherein the second small base station is hosted by the first local gateway and the first local controller, the first user equipment is hosted by the first local gateway, and the second user equipment is hosted by the second local gateway.