The present disclosure relates to a method and apparatus for transmitting and receiving data in a wireless communication system. A method, performed by a terminal dual-connected to a master base station and a secondary base station in a wireless communication system, of configuring an assistance information bit for local cache (AILC) bit includes receiving, from the master base station, a radio resource control (RRC) reconfiguration message including AILC bit configuration information (ailc-BitConfig), configuring an AILC bit of a packet data convergence protocol (PDCP) data packet data unit (PDU) based on at least one of a terminating base station of a data radio bearer (DRB) through which the PDCP data PDU is transmitted, whether the PDCP data PDU includes a service data unit (SDU) to be transmitted to a local cache, whether the DRB is configured with evolved universal terrestrial radio access (E-UTRA) PDCP or New Radio (NR) PDCP, or a PDCP sequence number (SN) of the PDCP data PDU, and transmitting, to the terminating base station, the PDCP data PDU in which the AILC bit is configured.

The present disclosure relates to a method and apparatus for transmitting and receiving data in a wireless communication system. A method, performed by a terminal dual-connected to a master base station and a secondary base station in a wireless communication system, of configuring an assistance information bit for local cache (AILC) bit includes receiving, from the master base station, a radio resource control (RRC) reconfiguration message including AILC bit configuration information (ailc-BitConfig), configuring an AILC bit of a packet data convergence protocol (PDCP) data packet data unit (PDU) based on at least one of a terminating base station of a data radio bearer (DRB) through which the PDCP data PDU is transmitted, whether the PDCP data PDU includes a service data unit (SDU) to be transmitted to a local cache, whether the DRB is configured with evolved universal terrestrial radio access (E-UTRA) PDCP or New Radio (NR) PDCP, or a PDCP sequence number (SN) of the PDCP data PDU, and transmitting, to the terminating base station, the PDCP data PDU in which the AILC bit is configured.

A method for updating an area and a device for the same in a wireless communication system is disclosed. Particularly, a method for performing a Tracking Area Update (TAU) with a Mobility Management Entity (MME) change performed by a first MME in a wireless communication system may include receiving a Context Request message from a second MME during the TAU procedure and transmitting a Context Response message to the second MME in response to the Context Request message, wherein an indication that there are downlink data buffered in the S-GW may be included in the Context Response message when downlink data is buffered in a Serving Gateway (S-GW) and a buffering time of the downlink data in the S-GW is not expired.

A method for updating an area and a device for the same in a wireless communication system is disclosed. Particularly, a method for performing a Tracking Area Update (TAU) with a Mobility Management Entity (MME) change performed by a first MME in a wireless communication system may include receiving a Context Request message from a second MME during the TAU procedure and transmitting a Context Response message to the second MME in response to the Context Request message, wherein an indication that there are downlink data buffered in the S-GW may be included in the Context Response message when downlink data is buffered in a Serving Gateway (S-GW) and a buffering time of the downlink data in the S-GW is not expired.

A base station according to the present embodiment receives, if the radio terminal is in a connected mode, via a bearer between the base station and a serving gateway, downlink data addressed to the radio terminal, from the serving gateway, and includes a controller configured to transmit the downlink data to the radio terminal. The controller does not release but maintains the bearer, if the extended DRX operation is configured to the radio terminal, when the radio terminal transitions to the idle mode. The controller receives, even if the radio terminal is in the idle mode, from the serving gateway, the downlink data addressed to the radio terminal, via the bearer, and buffers the downlink data until the downlink data is transmitted to the radio terminal.

It is an object to the present invention to provide a control system, a control method, a controller, and a program which allow a band allocated to each of traffic flows to be guaranteed.

According to the present invention, terminals and an access point each store packets to be transmitted to buffers therein on a traffic flow basis and notify the controller of the amount of stored packets, the controller determines transmission time and a transmission amount of packets on a traffic flow basis according to the notified packet amount to notify a corresponding terminal and the access point of the time and amount, and the terminal and the access point transmit packets according to the notified transmission time and transmission amount.

It is an object to the present invention to provide a control system, a control method, a controller, and a program which allow a band allocated to each of traffic flows to be guaranteed.

According to the present invention, terminals and an access point each store packets to be transmitted to buffers therein on a traffic flow basis and notify the controller of the amount of stored packets, the controller determines transmission time and a transmission amount of packets on a traffic flow basis according to the notified packet amount to notify a corresponding terminal and the access point of the time and amount, and the terminal and the access point transmit packets according to the notified transmission time and transmission amount.

This disclosure relates to techniques for a wireless device to report uncategorized data in a buffer status report. A first portion of buffered uplink data to be reported in a buffer status report may be categorized using a traffic flow template. A second portion of buffered uplink data to be reported in the buffer status report may not be categorized using the traffic flow template. A buffer status report indicating both the categorized and the uncategorized buffered uplink data may be transmitted to a base station providing a serving cell to the wireless device. According to some embodiments, the categorized buffered uplink data may be stored in a baseband processor buffer of the wireless device, while the uncategorized buffered uplink data may be stored in an application processor buffer of the wireless device.

This disclosure relates to techniques for a wireless device to report uncategorized data in a buffer status report. A first portion of buffered uplink data to be reported in a buffer status report may be categorized using a traffic flow template. A second portion of buffered uplink data to be reported in the buffer status report may not be categorized using the traffic flow template. A buffer status report indicating both the categorized and the uncategorized buffered uplink data may be transmitted to a base station providing a serving cell to the wireless device. According to some embodiments, the categorized buffered uplink data may be stored in a baseband processor buffer of the wireless device, while the uncategorized buffered uplink data may be stored in an application processor buffer of the wireless device.

Techniques are disclosed that dynamically allocate communications resources in a wireless communications network, such as a wireless personal area network (WPAN). For instance, a wireless communications device may obtain a resource allocation. This resource allocation includes a time slot (e.g., a TDMA time slot) within a wireless communications medium. The device determines a first portion of the time slot in which it intends to transmit data. Also, the wireless communications device relinquishes a second portion of the time slot that occurs after the first portion of the time slot. Based on this relinquishment, a central controller device may reallocate the second portion of the time slot.