Location based data transmission method and apparatus

A data transmission method, comprising:

• generating, by a core network device, first indication information indicating a mapping relationship from a quality of service (QoS) flow of a first session to a radio bearer;
• sending, by the core network device, local service indication information and a service identifier to a first access network device, wherein the local service indication information indicates that a service to which a data packet of the first session belongs is a local service;
• and
• sending, by the core network device, local area information to the first access network device, wherein the local area information comprises a cell identifier, a tracking area identifier, or a base station identifier associated with at least one local area corresponding to the local service,
• wherein when the first access network device and a second access network device belong to a same local area of the local service, the core network device sets general packet radio service tunneling protocol user plane (GTP-U) serial numbers of same data packets sent to the first access network device and the second access network device to be the same.

A data transmission method, comprising:

• receiving, by a second access network device, third indication information from a first access network device, wherein the third indication information indicates that a service to which a data packet of a first session belongs is a local service, and indicates a local area to which the first access network device belongs;
• determining, by the second access network device based on the third indication information, that the local area to which the first access network device belongs and a local area to which the second access network device belongs are different local areas;
• and
• in response to the local area to which the first access network device belongs and the local area to which the second access network device belongs being different local areas, determining, by the second access network device, to skip performing a data forwarding procedure for the first session.

An apparatus, comprising:

• one or more processors configured to:
• receive local service indication information and a service identifier from a core network device, wherein the local service indication information indicates that a service to which a data packet of a first session belongs is a local service, wherein the local service indication information is received to reduce data packets lost in a handover process of user equipment;
• send third indication information to a second access network device, wherein the third indication information indicates that the service is the local service;
• and
• determine, based on the third indication information, whether the second access network device belongs to a same local area of the local service as the apparatus.

An apparatus, comprising:

• one or more processors configured to:
• generate first indication information indicating a mapping relationship from a quality of service (QoS) flow of a first session to a radio bearer;
• send local service indication information and a service identifier to a first access network device, wherein the local service indication information indicates that a service to which a data packet of the first session belongs is a local service;
• and
• send local area information to the first access network device, wherein the local area information comprises a cell identifier, a tracking area identifier, or a base station identifier associated with at least one local area corresponding to the local service,
• wherein when the first access network device and a second access network device belong to a same local area of the local service, the apparatus sets general packet radio service tunneling protocol user plane (GTP-U) serial numbers of same data packets sent to the first access network device and the second access network device to be the same.

An apparatus, comprising:

• one or more processors configured to:
• receive third indication information from a first access network device, wherein the third indication information indicates that a service to which a data packet of a first session belongs is a local service, and indicates a local area to which the first access network device belongs;
• determine, based on the third indication information, that the local area to which the first access network device belongs and a local area to which the apparatus belongs are different local areas;
• and
• in response to the local area to which the first access network device belongs and the local area to which the apparatus belongs being different local areas, determine to skip performing a data forwarding procedure for the first session.