Abstract:
A transmission method of a mobile station moved in a region of a cell provided by a base station and providing a wireless LAN (local area network). The mobile station receives a plurality of uplink packet flows from a terminal. The mobile station distributes the plurality of uplink packet flows to a plurality of carrier components. Further, the mobile station transmits the plurality of uplink packet flows to the base station through the plurality of carrier components.
Abstract:
There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.
Abstract:
There are provided a device-to-device communication method, a mobile device using the same, and a device-to-device communication control method. The device-to-device communication method according to the invention may include receiving device-to-device communication resource allocation information and transmission characteristics information for device-to-device communication from a base station, and performing direct communication with an opposite terminal using the transmission characteristics information for device-to-device communication and the device-to-device communication resource allocation information, in which the transmission characteristics information includes the number of redundancy versions to be transmitted within at least one consecutive transmission time interval (TTI).
Abstract:
An operation method of a terminal in a communication system may comprise: in response to occurrence of uplink (UL) data, transmitting a scheduling request (SR) for the UL data to a base station; performing a UL timing alignment procedure with the base station when a UL timing between the terminal and the base station is not synchronized; receiving a UL grant for the UL data from the base station; and transmitting the UL data to the base station using resources indicated by the UL grant.
Abstract:
There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional ease of establishing a default hearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.
Abstract:
An operation method of a terminal in a communication system may comprise: receiving configuration information of an SPS from a base station, the configuration information including a first HARQ offset for first data and a second HARQ offset for second data; receiving control information including information indicating activation of the SPS from the base station; receiving the first data and the second data from the base station based on the configuration information of the SPS; generating a first HARQ codebook including a first HARQ feedback for the first data and a second HARQ feedback for the second data; and transmitting the first HARQ codebook to the base station on a first PUCCH indicated by the first HARQ offset and the second HARQ offset, wherein a value of the first HARQ offset is different from a value of the second HARQ offset.
Abstract:
A method and an apparatus for uplink communication based on grant-free scheme in a communication system. An operation method of a terminal includes receiving an RRC message from a base station, the RRC message including information indicating a frequency resource of a PUSCH; receiving a DCI from the base station, the DCI including information indicating a time resource of the PUSCH; and transmitting the PUSCH to the base station using the time-frequency resource indicated by the RRC message and the DCI. Therefore, the performance of the communication system can be improved.
Abstract:
There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.