摘要:
A method and apparatus for performing demapping in a wireless communication system utilizing a modulo operation are disclosed. The demapping method of a receiver in a wireless communication system includes receiving an input signal and first information indicating whether a first modulo operation is performed on the input signal from a transmitter; if the first information indicates execution of the first modulo operation, performing a second modulo operation of the input signal, and acquiring a reception signal; generating a maximum function value having a highest probability that the reception signal corresponds to a candidate constellation point of an extended constellation; and generating a log-likelihood ratio (LLR) using the generated maximum function value.
摘要:
Disclosed herein is an operation method of a terminal for updating control information of a target base station in a handover procedure, and the method may include receiving a neighbor advertisement message comprising control information of at least one neighbor base station comprising the target base station from the serving base station; transmitting a handover request message comprising first change count information indicating a neighbor advertisement message version to the serving base station; receiving a handover command message comprising delta control information different from the control information included in the neighbor advertisement message from the serving base station; and updating the control information of the target base station using the received delta control information.
摘要:
An operation method of a terminal for updating control information of a target base station in a handover procedure. The method may include receiving a neighbor advertisement message comprising control information of at least one neighbor base station comprising the target base station from the serving base station; transmitting a handover request message comprising first change count information indicating a neighbor advertisement message version to the serving base station; receiving a handover command message comprising delta control information different from the control information included in the neighbor advertisement message from the serving base station; and updating the control information of the target base station using the received delta control information.
摘要:
A method for decrypting multicast data by a mobile station in a wireless communication system is described. The method includes receiving an identifier of a group from a base station, receiving parameters for generating a group traffic key from the base station, wherein the parameters include an authentication key for the group, a group security seed and a counter, performing a key derivation function to generate the group traffic key based on the identifier and the parameters and decrypting multicast data using the group traffic key.
摘要:
A method for decrypting multicast data by a mobile station in a wireless communication system is described. The method includes receiving an identifier of a group from a base station, receiving parameters for generating a group traffic key from the base station, wherein the parameters include an authentication key for the group, a group security seed and a counter, performing a key derivation function to generate the group traffic key based on the identifier and the parameters and decrypting multicast data using the group traffic key.
摘要:
The present invention relates to a broadband wireless access system, and more particularly, to a method for efficiently determining power for ranging performed by a terminal on a target base station or a target region during handover or during changing of a region. A method for controlling uplink power for network reentry of a terminal from a first region to a second region in a broadband wireless access system, according to an embodiment of the present invention, comprises the steps of: receiving a media access control (MAC) management message including a power control parameter that is to be applied to the second region from the first region; and performing ranging to the second region by applying the power control parameter.
摘要:
A wireless access system and, more particularly, a method and apparatus for more efficiently performing zone switch are disclosed. The method of performing zone switch by an advanced mobile station (AMS) in a mixed-mode advanced base station (ABS) which operates in a mixed mode of a broadband wireless access system includes receiving a ranging response (RNG-RSP) message including system information of an AMS support zone from a legacy zone (LZone) of the ABS, and performing ranging to the AMS support zone using the system information.
摘要:
The present invention relates to a wireless communication system, and more particularly, to method and apparatus for transmitting information. According to one aspect of the present invention, a method for allocating resources by a femtocell base station (BS) to a first terminal connected to said femto-cell BS, comprising the steps of: receiving information, which is transmitted by a macro base station (BS) to a second terminal connected to said macro BS; calculating a distance between said second terminal and said femtocell BS using first information for allocating resources to said second terminal from among said received information; and transmitting, to said first terminal, a resource allocation signal for allocating resources to said first terminal, when the calculated distance is equal to or greater than a predefined threshold distance.
摘要:
The present invention relates to a wireless communication system, and more particularly, to method and apparatus for transmitting information. According to one aspect of the present invention, a method for allocating resources by a femtocell base station (BS) to a first terminal connected to said femto-cell BS, comprising the steps of: receiving information, which is transmitted by a macro base station (BS) to a second terminal connected to said macro BS; calculating a distance between said second terminal and said femtocell BS using first information for allocating resources to said second terminal from among said received information; and transmitting, to said first terminal, a resource allocation signal for allocating resources to said first terminal, when the calculated distance is equal to or greater than a predefined threshold distance.
摘要:
The present invention relates to a wireless communication system, and more specifically to a method and an apparatus for transmitting a discovery signal in a wireless communication system. According to one aspect of the present invention, a method for enabling a terminal for supporting multiple radio access technologies to perform communication includes the steps of: communicating first data to a base station; receiving first information for notifying the presence of a first AP from the first AP as at least one AP among a plurality of APs; and communicating second data using the first AP, wherein the first information is received by using a first resource as at least a part of all resources which the base station uses, a first radio access technology can be applied between the terminal and the base station, and a second radio access technology can be applied between the terminal and the first AP.