摘要:
The present description relates to a method in which a terminal in an idle mode performs network reentry in a wireless access system, wherein the method comprises: a step of receiving, from a base station, control information containing a first parameter and a second parameter for determining a frame in which uplink ranging is to be performed; and a step of performing uplink ranging for network reentry with the base station on the basis of the control information, wherein the first parameter indicates the location of a superframe in which uplink ranging is to be performed, and the second parameter indicates the frame duration in the superframe which is indicated by the first parameter and in which uplink ranging is performed.
摘要:
The present description relates to a method in which a terminal in an idle mode performs network reentry in a wireless access system, wherein the method comprises: a step of receiving, from a base station, control information containing a first parameter and a second parameter for determining a frame in which uplink ranging is to be performed; and a step of performing uplink ranging for network reentry with the base station on the basis of the control information, wherein the first parameter indicates the location of a superframe in which uplink ranging is to be performed, and the second parameter indicates the frame duration in the superframe which is indicated by the first parameter and in which uplink ranging is performed.
摘要:
The present description relates to a method in which a first terminal communicates with a base station via a second terminal in a wireless access system supporting machine-type communication (MTC). The method comprises the following steps: transmitting, to the second terminal, uplink data to be transmitted to the base station; receiving, from the base station, control information corresponding to the quality of a link between the first terminal and the second terminal; and retransmitting the uplink data to the second terminal in accordance with the received control information, wherein the control information includes information on the delay between the second terminal and the base station, and information on the measured quality of the link between the first terminal and the second terminal.
摘要:
A specific M2M communication device according to the present invention is grouped with other M2M communication devices, and performs communication with a base station as a representative of the group. To this end, at least one of location information, battery information and signal quality information of a corresponding M2M communication device is provided to a base station during the initial network entry with the base station. On the basis of this, the base station then provides a message announcing that the specific M2M communication device has been selected as a representative of the group (also called a ‘group head’), together with a group ID and a group head ID. Accordingly, the M2M communication device thus selected as the representative of the group is able to perform the transmission of uplink and/or downlink signals with the base station, while representing the group.
摘要:
The present invention relates to an efficient handover (HO) procedure when a base station having a relatively narrow coverage and a macro base station are both present. A method for performing a handover by a mobile station (MS) according to one embodiment of the present invention comprises the steps of: determining the type of a target base station that satisfies the pre-set handover trigger conditions; starting the handover procedure for the target base station when the target base station is a first type base station according to the determined results, and starting a first timer when the target base station is a second type base station having narrower coverage than the first type base station according to the determined results; and determining whether communication with the target base station is possible after the first timer has been completed, if the first timer had been started.
摘要:
A specific M2M communication device according to the present invention is grouped with other M2M communication devices, and performs communication with a base station as a representative of the group. To this end, at least one of location information, battery information and signal quality information of a corresponding M2M communication device is provided to a base station during the initial network entry with the base station. On the basis of this, the base station then provides a message announcing that the specific M2M communication device has been selected as a representative of the group (also called a ‘group head’), together with a group ID and a group head ID. Accordingly, the M2M communication device thus selected as the representative of the group is able to perform the transmission of uplink and/or downlink signals with the base station, while representing the group.
摘要:
The present description relates to a method in which a first terminal communicates with a base station via a second terminal in a wireless access system supporting machine-type communication (MTC). The method comprises the following steps: transmitting, to the second terminal, uplink data to be transmitted to the base station; receiving, from the base station, control information corresponding to the quality of a link between the first terminal and the second terminal; and retransmitting the uplink data to the second terminal in accordance with the received control information, wherein the control information includes information on the delay between the second terminal and the base station, and information on the measured quality of the link between the first terminal and the second terminal
摘要:
The present invention relates to a broadband wireless access system, and more specifically aims to define an efficient handover (HO) procedure when a base station having a relatively narrow coverage, such as femto base station, and a macro base station are both present. A method for performing a handover by a mobile station (MS) in a broadband wireless access system according to one embodiment of the present invention comprises the steps of: determining the type of a target base station that satisfies the pre-set handover trigger conditions; starting the handover procedure for the target base station when the target base station is a first type base station according to the determined results, and starting a first timer when the target base station is a second type base station having narrower coverage than the first type base station according to the determined results; and determining whether communication with the target base station is possible after the first timer has been completed, if the first timer had been started.
摘要:
Disclosed are an M2M device operating in an idle mode and a method for performing communication between a base station device and the M2M device. In the M2M device operating in an idle mode and communicating with a base station according to the present invention, a receiver may receive a first message and a second message from the base station. The first message includes information indicating that first data, the size of which is smaller than a predetermined data size, is transmitted, and information regarding the time that the first data is transmitted. The second message includes the first data. A processor may perform a control to receive the first data from the base station on the basis of the information indicating that the first data is transmitted and the information regarding the time that the first data is transmitted.
摘要:
A method and apparatus for transmitting uplink (UL) data in a wireless communication system is provided. A machine-to-machine (M2M) device receives a deregistration response message including a transmission type and a maximum number of paging cycle during an idle mode entry, waits to receive a paging message for the M2M device to transmit the UL data during a period corresponding to up to (the maximum number of paging cycle×a length of paging cycle), and transmits the UL data.