Data transmitting method using machine type communication group based tunneling, and mobile communication system using the same
AssigneeElectronics and Telecommunications Research Institute
InventorsChang Ki Kim, Jae Sheung Shin
Life of this patent
Estimating the term…
Abstract
A data transmission method is disclosed. A data transmission method for at least one machine type communication (MTC) device constituting an MTC group includes receiving an attach request from the MTC device; determining whether the attach request is a first attach request from the MTC group; and if it is determined that the attach request is a first attach request from the MTC group, establishing a downlink tunnel and an uplink tunnel to be used for data transmission and reception between a GW and a base station using an MTC group identity.
Claims15
A data transmission method for at least one machine type communication (MTC) device constituting an MTC group, the method comprising:
- receiving an attach request from a MTC device;
- determining whether the attach request is a first attach request from the MTC group;
- and
- if it is determined that the attach request is a first attach request from the MTC group, establishing a downlink tunnel and an uplink tunnel to be used for data transmission and reception between a gateway (GW) and a base station using an MTC group identity, the establishing comprising:
- transmitting, by a mobility management entity, a session creation request message to the GW in response to the attach request from the MTC device and receiving a session creation response message from the GW;
- transmitting, by the mobility management entity, an initial context setup request message including the MTC group identity to the base station;
- and
- allocating, by the base station, an MTC group tunnel identity for downlink data transmission using the MTC group identity included in the initial context setup request message.
A mobile communication system including at least one machine type communication (MTC) device constituting an MTC group and providing an MTC service, the system comprising:
- the at least one MTC device configured to transmit an attach request to a network;
- a mobility management entity configured to transmit a session creation request message including an MTC group identity to a gateway (GW), transmit an initial context setup request message including the MTC group identity to a base station, wherein the base station is configured to allocate the MTC group tunnel identity for downlink data transmission using the MTC group identity included in the initial context setup request message received from the mobility management entity, and transmit a bearer modification request message to the GW if the attach request from the MTC device is a first attach request from the MTC group;
- and
- the gateway configured to receive the session creation request message from the mobility management entity and allocate an MTC group tunnel identity for uplink data transmission if the session creation request is a first session creation request from the MTC group, and to receive the bearer modification request message from the mobility management entity and update an MTC group tunnel identity for downlink data transmission.
A mobility management entity located in a mobile communication system, the mobile communication system including at least one machine type communication (MTC) device constituting an MTC group and providing an MTC service,
- wherein the mobility management entity, which resides on an Evolved Packet Core (EPC) of a core network, receives a network attach request from the at least one MTC device, transmits a session creation request message including an MTC group identity to a gateway (GW), transmits an initial context setup request message including the MTC group identity to a base station, wherein the base station is configured to allocate the MTC group tunnel identity for downlink data transmission using the MTC group identity included in the initial context setup request message received from the mobility management entity, and transmits a bearer modification request message to the GW if the attach request from the MTC device is a first attach request from the MTC group.
A gateway (GW) apparatus located in a mobile communication system, the mobile communication system including at least one machine type communication (MTC) device constituting an MTC group and a mobility management entity, and providing an MTC service, wherein:
- the GW apparatus receives a session creation request message from the mobility management entity, and allocates an MTC group tunnel identity for uplink data transmission if the session creation request is a first session creation request from the MTC group, and
- the GW apparatus receives a bearer modification request message from the mobility management entity and updates an MTC group tunnel identity and an address of a base station for downlink data transmission, wherein the base station is configured to allocate the MTC group tunnel identity for downlink data transmission using the MTC group identity included in the initial context setup request message received from the mobility management entity.
Dependencies are inferred from the claim text.