Samsung Electronics Co., Ltd.

Nam-Gi Kim

Min-hee Cho

Jaehyuk Jang

Jung-Je Son

Jae-Hee Cho

Hyoung-Kyu Lim

Hyon-Goo Kang

June Moon

Min-Hee Cho

Hyun-Jeong Kang

Soon-Young Yoon

Yeong-Moon Son

Jeong-ho Park

Geun-Hwi Lim

Kwan-Hee Roh

Byoung-Ha Yi

Kang-gyu Lee

Jang-Hoon Yang

Jae-Hyuk Jang

Jin-Hyun Youn

Kang-Gyu Lee

An Internet Protocol (IP) address acquisition in a broadband wireless communication system is disclosed. A terminal includes a driver for loading one of a plurality Media Access Control (MAC) addresses for a multi-Frequency Allocation (FA) connection when the terminal is initialized; an interface for registering the loaded MAC address to use in an upper layer of a MAC layer; and a manager for acquiring an IP address using the registered MAC address when a network entry for at least one FA is complete.

Apparatus and method for obtaining IP address of terminal using multiple frequency allocations in broadband wireless communication system

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.

Apparatus and method for handover in a communication system

An apparatus and method for performing handover in a broadband wireless communication system are provided. A communication method includes broadcasting, by a Base Station (BS), a neighbor advertisement message including neighbor cell information through each Frequency Allocation (FA); analyzing the neighbor cell advertise message by a plurality of Media Access Control (MAC) processors of an Mobile Station (MS) to obtain FA configuration information of each neighbor cell; independently determining handover by the MAC processors of the MS; generating the start of handover by one MAC which first determines handover; and determining a handover target by the remaining MAC processors so that handover is performed to different FAs of the same BS of the MAC processor which generates the start of handover by using the FA configuration information of each neighbor cell.

Apparatus and method for performing handover in broadband wireless communication system

A broadband wireless communication system is provided. A sending apparatus in the broadband wireless communication system includes a controller for distributing packets to a plurality of processors to transmit the packets in a multi-Frequency Allocation (FA) access mode; the plurality of the processors for processing the packet provided from the controller in a Media Access Control (MAC) layer; and a plurality of senders for encoding the packets provided from the corresponding processors in a physical layer and transmitting a signal generated through the physical layer encoding.

Apparatus and method for supporting frequency overlay in broadband wireless communication system

An apparatus and method for supporting different frame structures in a broadband wireless communication system are provided. A communication method of a Base Station (BS) includes determining a frame structure to be provided. A MAP message including an indicator that indicates a new standard is generated, when the provided frame structure conforms to the new standard. The generated MAP message is transmitted by performing physical layer encoding thereon. Accordingly, signaling is defined to report a currently provided frame structure to an MS, and thus, a system can support different frame structures.

Apparatus and method for supporting different frame structures in broadband wireless communication system

An apparatus and method for supporting Quality of Service (QoS) in a wideband wireless communication system using multiple Frequency Allocations (FAs) are provided. In a transmitting method for packet distribution in the wideband wireless communication system, the method includes, during a network entry process, determining a number of FAs through multi-FA capability negotiation; distributing packets, received from a superordinate layer, through the multiple FAs; and transmitting the packets distributed through the multiple FAs. Accordingly, packets can be effectively distributed through multiple FAs, and QoS can be effectively provided.

Apparatus and method for supporting quality of service in wideband wireless communication system using multiple frequency allocations

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.

Apparatus and method for allocating resource in broadband wireless communication system

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.

Apparatus and method for dynamic channel allocation in multiple channel wireless communication system

An apparatus and method for Hybrid Automatic Repeat reQuest (HARQ) signaling in a broadband wireless communication system are provided. A communication method of a Base Station (BS) includes transmitting a Fixed Allocation (FA) message containing bitmap index information for all Mobile Stations (MSs) allocated with fixed resources; and transmitting bitmap information indicating whether packets to be transmitted to the MSs are Retransmission (Rtx) packets or new packets. Accordingly, when HARQ is carried out using a fixed resource allocation scheme, a bitmap is used to indicate whether HARQ packets transmitted in a current frame are new packets or Rtx packets. Therefore, a receiving end can be prevented from incorrectly decoding the packets.

Apparatus and method for hybrid automatic repeat request signaling in broadband wireless communication system

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.

Method and apparatus for allocating radio resources in a wireless communication system

Provided is an apparatus and method for varying the length of an error check code of a PDU according to the length of a payload in a broadband wireless communication system. A transmitting apparatus includes a first generator and a second generator. The first generator generates a payload of a PDU. The second generator selects the length of an error check code according to the length of the generated payload, generates an error check code according to the selected length, and suffixes the error check code to the payload.

Apparatus and method for communicating MAC layer data in broadband wireless communication system

Provided is an apparatus and method for allocating a radio frequency band resource in a Space Division Multiple Access (SDMA) system. The scheduler allocates a data burst, extracts a surplus power resource from each channel band, redistributes the extracted surplus power resource to the data burst, outputs redistributed transmission power information to a power controller, and outputs allocated burst information and the data burst to a modulation block. The power controller receives the transmission power information from the scheduler, and outputs a weight associated with a transmission power. The multiplier receives a frequency domain signal, multiplies the received frequency domain signal by the weight, and outputs the multiplied result to an IFFT operator.

Apparatus and method for allocating radio frequency band resource in space division multiple access system

A radio resource allocating method in an adaptive antenna system is provided. The radio resource allocating method includes selecting one user when there are one or more users allocable to a current spatial frame; calculating a sum of Modulation order Product code Rate (MPR) values with respect to users allocated a same radio resource including the selected user when a total transmit power of a Base Station (BS) is divided by a current spatial frame index; and allocating the selected user to the current spatial frame by taking into account the calculated sum and a sum of MPR values with respect to users allocated to a previous spatial frame. Accordingly, a system throughput or a scheduler performance can be maximized.

Radio resource allocating method and apparatus in adaptive antenna system

An apparatus and method for transmitting data in a communication system are provided. The method for transmitting the data includes determining data to be transmitted over a power boosting zone, generating a power boosting zone used for power-boosting and transmitting the data, allocating the data to the generated power boosting zone and power-boosting and transmitting the power boosting zone.

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Suwon-si, South Korea

Nam-Gi Kim