摘要:
An apparatus and method for dynamic channel allocation in a multiple channel wireless communication system are provided. The apparatus includes a scheduler for dividing resources to be used for a band Adaptive Modulation and Coding (AMC) channel and a diversity channel, a generator for generating a MAP heading field including physical distribution information on the band AMC channel and the diversity channel, and a mapper for mapping the MAP heading field to a predetermined physical resource region.
摘要:
An apparatus for transmitting data in a wireless access communication system includes a rate request code selector for selecting a corresponding rate request code from among rate request codes predefined according to a traffic rate, and a transmitter for transmitting the selected rate request code to a Base Station (BS). The apparatus receives an uplink Media Access Protocol (MAP) from the BS, acquires uplink resource allocation amount information from the uplink MAP, selects a corresponding rate request code from among rate request codes predefined according to a traffic rate considering the uplink resource allocation amount information and a size of transmission data, and transmits uplink data including the selected rate request code to the BS.
摘要:
Provided is an apparatus and method for allocating radio resources in a broadband wireless communication system by adaptively grouping the radio resources. In the method, the amount of resources necessary for a transmission of data to a user terminal and the amount of the remaining allocable resources are detected. A resource allocation scheme is selected in consideration of the amount of resources necessary for the transmission of the data to the user terminal and the amount of the remaining resources. A group index of radio resources for the user terminal is determined according to the selected resource allocation scheme. Radio resources corresponding to the determined group index are allocated to the user terminal.
摘要:
A resource allocating apparatus and a method for a Push-To-Talk (PTT) service in a wideband wireless communication system are provided. The method includes, when a Floor Grant message is received from a PTT server, allocating an uplink resource to a corresponding terminal and when a Floor Release message is received from the terminal, aborting the uplink resource allocation. The uplink resource is allocated only to the terminal having the data to be transmitted, and the resources are not allotted to terminals having no data to send.
摘要:
Radio resource allocation apparatus and method in a multi-channel system are provided. The method includes determining a type of a channel to be allocated to terminals, which request a resource allocation. When there is a terminal to be assigned the band AMC channel, necessary resources are allocated to the terminal as resources of the band AMC channel within a frequency band preferred by the terminal. A virtual resource space is generated which collects resources not allocated as the resources of the band AMC channel. Resources are allocated to terminals to be assigned the diversity channel from within the virtual resource space. Accordingly, the radio resources can be efficiently allocated in the multi-channel system where the diversity channel and the band AMC channel coexist.
摘要:
A method and apparatus for allocating radio resources in a wireless communication system are provided, in which a Base Station (BS) transmits information indicating current allocated resources to a Mobile Station (MS) in every predetermined periods, defines a virtual resource space with current unallocated resources, when the MS requests resource allocation, generates resource allocation information about resources allocated in the virtual resource space, and transmits the resource allocation information to the MS.
摘要:
A method and system for transmitting/receiving a signal in a wireless communication system are provided, in which an mobile station determines a sequence number of a first protocol data unit being a last received protocol data unit, transmits the SN of the first protocol data unit to a serving base station, and allocates a virtual SDU sequence number to a service data unit including a second protocol data unit following the first protocol data unit.
摘要:
A handover method and apparatus for reducing a time delay during handover in a communication system is provided. A Mobile Station (MS) transmits a serving Base Station (BS) a first message indicating that the MS will perform handover to a target BS and the first message includes information for requesting a second message indicating a response to the successful receipt of the first message.
摘要:
A method for controlling a sleep-mode operation in a communication system is provided, in which a Mobile Station (MS) transitions to an awake state in a listening interval of the sleep mode, performs one of a first operation, a second operation, and a third operation in the awake state, and transitions to a sleep state if the MS determines that there is no data to transmit to a BS and no data to receive from the Base Station (BS) after the one operation is performed. The first operation is for receiving data from the BS, the second operation is for transmitting data to the BS, and the third operation is receiving data from the BS and transmitting data to the BS.
摘要:
An apparatus and method for transmitting and receiving a frame in a Broadband Wireless Access (BWA) system are provided. In the BWA system for transmitting and receiving a super frame including one or more sub-frames, a base station includes a first generator for generating resource allocation information on a circuit service and a transmitter for transmitting the resource allocation information provided from the first generator in a first part of the super frame. Accordingly, for a service (e.g., VoIP service) in which resources have to be periodically allocated, resource allocation information is transmitted during each main period (i.e., super frame), and thus there is an advantage in that the size of control information can be significantly reduced.