Abstract:
The present invention relates to a device for controlling a state of a terminal with respect to mobility management, and a method thereof. The state of the terminal includes a disconnected state (600) and a connected state (500), the connected state (500) includes an active state (510) and an idle state (520), and the active state (510) includes an active sub-state (511 ) and a standby sub-state (512). The terminal in the active state (510) updates location information for each cell, and the terminal in the idle state (520) updates the location information for each radio access network registration area including a plurality of cells. The terminal in the standby sub-state (512) determines a quality of service (QoS) of packet data, and performs the handover or is set to be in the idle state (520) according to the determined QoS.
Abstract:
Disclosed is a random access data transmission system and method using OFDMA. The system includes a scheduling ID into an access grant on a preamble for a random access, and transmits it together with an acknowledgment or a non-acknowledgment of the preamble, a base station uses the scheduling ID to notify the mobile station of a random access data transmittable time and a data transmission channel through a control channel, and the mobile station transmits a preamble in advance. After receiving a transmission assignment instruction corresponding to a scheduling ID through the control channel, the mobile station transmits random access data through an assigned channel.
Abstract:
A method for establishing synchronization with a user equipment in a base station of a wireless communication system, comprising: transmitting random access channel information to the user equipment (S62); receiving a random access message corresponding to the random access channel information from the user equipment (S63); and transmitting a response message including information for establishing synchronization to the user equipment (S63), wherein the random access channel information includes random access channel allocation information.
Abstract:
Disclosed is a random access data transmission system and method using OFDMA. The system includes a scheduling ID into an access grant on a preamble for a random access, and transmits it together with an acknowledgment or a non-acknowledgment of the preamble, a base station uses the scheduling ID to notify the mobile station of a random access data transmittable time and a data transmission channel through a control channel, and the mobile station transmits a preamble in advance. After receiving a transmission assignment instruction corresponding to a scheduling ID through the control channel, the mobile station transmits random access data through an assigned channel.
Abstract:
An extended paging indicator-based adaptive discontinuous reception method is proposed so as to improve a power saving performance of a terminal in an asynchronous wideband code division multiple access schemes. To this end, a plurality of terminals for performing power saving receive an extended paging indicator for a discontinuous reception cycle, conform a type of a bit Run for configuring the extended paging indicator, and change the discontinuous reception period. In addition, the terminals set the discontinuous reception period update factor value to be varied according to the extended paging indicator as an initial value so as to determine a next paging occasion block, change the discontinuous reception period update factor value according to the paging indicator of the bit Run received from base station, and change the discontinuous reception period according to the variance of the discontinuous reception period update factor value.
Abstract:
Provided is a method for transmitting/receiving control information needed between Medium Access Control (MAC) layers of a base station and a mobile station by using a control channel block in a packet-based mobile communication system, which is under discussion for standardization, while minimizing the use of a control channel block. The method for transmitting control information for controlling a mobile station in a packet-based mobile communication system with uplink and downlink schedulers, which includes: a) forming a control channel block including control information for controlling the mobile station and identification (ID) information for identifying the control information transmitted to the mobile station; and b) coding the control channel block and transmitting the coded control channel block to the mobile station.
Abstract:
A method for establishing synchronization with a user equipment in a base station of a wireless communication system, comprising: transmitting random access channel information to the user equipment (S62); receiving a random access message corresponding to the random access channel information from the user equipment (S63); and transmitting a response message including information for establishing synchronization to the user equipment (S63), wherein the random access channel information includes random access channel allocation information.