Samsung Electronics Co., Ltd.

Beijing Samsung Telecom R&d Center

Nokia Technologies Oy

Ho-kyu Choi

Youn-sun Kim

Hwan-joon Kwon

Dong-hee Kim

Ho-Kyu Choi

Youn-Sun Kim

Hwan-Joon Kwon

Jae-Weon Cho

Hyun-Woo Lee

Jae-Yoel Kim

Dong-Hee Kim

Sung-Ho Choi

Dong-seek Park

Mi-Hyun Lee

Seong-Ill Park

Hee-Won Kang

Jun-Sung Lim

Jae-Sung Jang

Jeong-ho Park

Young-Kwon Cho

Chi-Woo Lim

Su-Ryong Jeong

Tae-Young Kim

Sung-Oh Hwang

Soon-Young Yoon

Hyun-Kyu Yu

Song-Nam Hong

Kook-Heui Lee

Chang-Hoi Koo

Ki-Ho Jung

Ki-Chun Cho

Dae-Gyun Kim

Pan-Yuh Joo

Chang-soo Park

Hyeon-Woo Lee

Yu-Suk Yun

Seung-Hoon Park

Seung-Hoon Choi

Se-Ho Kim

Sung-Eun Park

Jin-Soo Park

Chan-Byoung Chae

Hi-Chan Moon

Hoon Huh

Chang-Ho Suh

Shuangfeng Han

Kyou-Woong Kim

Jin-Kyu Koo

Petar Popovski

Young-Kyun Kim

Elisabeth De Carvalho

Woo-Sang Hong

Jae-Hee Cho

Yong-Jun Kwak

Byung-Jae Kwak

Hyun-Seok Lee

Kwan-Hee Roh

David Mazzarese

Jung-Soo Woo

Jung-Min Ro

Sung-Kwon Hong

Jae-Heung Yeom

Sang-Hyun Yang

Sang-Hwan Park

Katz Marcos Daniel

Chang-Soo Park

Hyun-Jung Mun

Ju-Ho Lee

Sung-Jin Kim

Kathiravetpillai Sivanesan

Min-Goo Kim

Hai Feng Wang

Do-Young Kim

Beom-Sik Bae

Jae-min Ahn

Bruno Clerckx

Cheng Shan

Sung-jin Kim

Hoon Suk Chang

Jin-Ho Choi

Won-Il Roh

Eun-Taek Lim

Beong-Jo Kim

Sang-Hyuck Ha

Eun-Yong Kim

Joon-Ho Park

Sang-Min Bae

Jingyi Liao

Chan-Soo Hwang

Seong-Hun Kim

Taori Rakesh

Seok-Hyun Yoon

Yong-Suk Lee

Jin-Weon Chang

Hwa-Sun You

Su-Won Park

Dong-Seek Park

Jong-Yoon Hwang

Jin-Woo Heo

Jae-Yeol Kim

Min-Koo Kim

Jae-Min Ahn

Seok Hyun Yoon

Ju-ho Lee

A method for communicating with a network by a terminal in a wireless communication system, wherein the terminal receives, from the network, signaling information representing a transmission period and a time offset for uplink transmission of a feedback information, and determines a time to transmit the feedback information based on the transmission period and the time offset. The terminal transmits the feedback information to the network based on the determined time.

Apparatus and method for gating transmission of a data rate control channel in an HDR mobile communication system

An apparatus and method for transmitting/receiving control information in a broadband wireless communication system using Half Frequency Division Duplex (H-FDD) are provided. An operation of a Mobile Station (MS) includes, in the case of a frame at which control information is not transmitted, performing uplink communication at a front end of the frame and, in the case of a frame at which the control information is transmitted, performing downlink communication at a front end of the frame.

Apparatus and method for transmitting and receiving control information in a broadband wireless communication system using half frequency division duplex

A multiple antenna system including a mobile station and a base station are operable to perform a method for transmitting control information for interference mitigation. A Mobile Station (MS) can transmit control information for interference mitigation. The MS determines a first Precoding Matrix Index (PMI) and a second PMI for interference from an adjacent Base Station (BS). Based on a correlation level from correlation values between one of the first PMI and second PMI and the remaining PMIs in the codebook, the MS determines a level of a subset of PMIs, and feeds back information indicating the correlation level.

Method and apparatus for transmitting control information for interference mitigation in multiple antenna system

An apparatus and method support various system bandwidths in a broadband wireless communication system. A Mobile Station (MS) operation includes determining a system bandwidth through a primary preamble for frame synchronization, which a Base Station (BS) transmits. A Fast Fourier Transform (FFT) size, the number of guard subcarriers, and the number of used subcarriers corresponding to the system bandwidth are determined using a first table. An operation parameter of a modem is set according to the FFT size, the number of guard subcarriers, and the number of used subcarriers.

Apparatus and method for supporting various system bandwidths in a broadband wireless communication system

An apparatus and method for maintaining backward compatibility with a narrow-band wireless communication system in a wide-band wireless communication system is provided. The base station comprises a scheduler, a control information generator, a resource mapping unit and a transmitter. The terminal comprises a resource allocation information checking unit, a receiver and a transmitter.

Apparatus and method for frame structure in wide-band wireless communication system

A method and apparatus for power control in a wireless communication system are provided. A Mobile Station (MS) operation method for power control in a wireless communication system includes assigning an UpLink (UL) control channel to the MS from a Base Station (BS), determining a location to receive a Transmit Power Control (TPC) command based on the UL control channel, and receiving a TPC command in the determined location and increasing or decreasing transmit power, thus advantageously being capable of reducing an overhead for power control command assignment information.

Method and apparatus for power control in a wireless communication system

A method and system for configuring a frame in a communication system is provided. The method includes determining a number of frames for configuring one multi-frame, wherein the number is at least two, and configuring each of the determined number of frames, wherein the determined number of frames include a first frame and a second frame temporally discriminated from each other, each of the determined number of frames includes a downlink sub-frame and an uplink sub-frame, a downlink sub-frame of the first frame includes a first area for transmitting a reference signal used for an acquisition of synchronization between a base station and a mobile station, a second area including system information and common control information related to the multi-frame, a third area including modulation scheme information and allocation information of data bursts, a fourth area to which a downlink data burst is allocated in a diversity mode and a fifth area to which a downlink data burst is allocated in a band Adaptive Modulation and Coding (AMC) mode, and a downlink sub-frame of the second frame includes a sixth area including modulation scheme information and allocation information of data bursts, a seventh area to which a data burst is allocated in a diversity mode, and an eighth area to which a data burst is allocated in an AMC mode.

Method and system for configuring a frame in a communication system

A method and an apparatus for allocating a resource in a broadband wireless communication system are provided. In the method, a Modulation and Coding Scheme (MCS) level set and a burst size set to generate a codebook is determined. The codebook is generated using the MCS level set and the burst size set. Resource allocation information is one of generated and read according to the codebook.

Apparatus and method for allocating resources using codebook in a broadband wireless communication system

A method to transmit a packet of a BS in a communication system using a HARQ scheme is provided. The method includes assigning resource for transmitting a packet to a mobile station, and transmitting a first packet to the mobile station using the assigned resource; transmitting timing information on which a second packet is transmitted to the mobile station when the BS does not receive information indicating that the mobile station decoded the first packet successfully or when the BS receives information indicating that the mobile station failed to decode the first packet; and transmitting the second packet to the mobile station on a timing point corresponding to the timing information.

Hybrid automatic repeat request system and method thereof in a communication system

A broadband wireless communication system supporting frequency overlay is provided. Operations of a base station includes checking whether it is time to transmit a common control signal; switching positions of a first Common Control Channel and a second Common Control Channel applied to a previous transmission of the common control signal while mapping a common control signal to the first Common Control Channel and the second Common Control Channel positioned in different Frequency Assignments; and transmitting the common control signal via the first Common Control Channel and the second Common Control Channel that are switched.

Apparatus and method for employing common control channel and broadcast channel in a broadband wireless communication system with frequency overlay

A method and apparatus reduce overhead of feedback in a closed loop Multiple Input Multiple Output (MIMO) system. A controller feeds back the long-term Precoder Matrix Index (PMI) to a serving base station under direction of the serving base station when the long term PMI feedback transmission is required, generates a new codebook using the long term PMI, and determines a short term PMI from the new codebook. A feedback transmitter feeds back the short-term PMI to the serving base station.

Apparatus and method for overhead reduction of feedback in closed loop MIMO system

A method of signal transmission/reception by a transmitter in a wireless mobile communication system is provided. The method includes determining a signal transmission/reception corresponding relation between a downlink and an uplink of the wireless mobile communication system using a super-frame, the super-frame including at least one frame, said at least one frame including at least one downlink sub-frame and at least one uplink sub-frame, the signal transmission/reception corresponding relation enabling each sub-frame within a link including fewer sub-frames to correspond to at least one sub-frame within a link including more sub-frames when the downlink and the uplink of the wireless mobile communication system include different numbers of sub-frames, wherein the signal transmission/reception corresponding relation is also determined when the downlink and the uplink of the wireless mobile communication system include a same number of sub-frames, and transmitting and receiving signals to and from a receiver through at least one downlink sub-frame and at least one uplink sub-frame according to the determined signal transmission/reception corresponding relation.

Method for signal transmission/reception based on HARQ scheme in wireless mobile communication system

A method for operating a Mobile Station (MS) in a Multiple Input Multiple Output (MIMO) wireless communication system is provided. The method includes measuring channel quality for a serving Base Station (BS), if the channel quality is less than a threshold, measuring interference power from one or more neighbor BSs, determining a Precoding Matrix Index (PMI) and a priority metric for each neighbor BS, and feeding back at least one of the PMI, a PMI type indicator, the priority metric, and the channel quality to the serving BS.

Apparatus and method for inter-cell interference cancellation in MIMO wireless communication system

An apparatus and a method for composing a subchannel in a wireless communication system are provided. The method includes performing a subband-based permutation on resources for composing a subchannel; selecting one or more subbands as resources for a band selection subchannel from the resources passing through the subband-based permutation; composing the band selection subchannel using at least one of the selected subbands; performing a resource allocation unit based permutation on resources not selected for the band selection subchannel; composing a resource allocation unit based diversity subchannel using subband remained in the selected subbands after the band selection subchannel is composed and at least one of the resource allocation units of the resources passing through the resource allocation unit based permutation; and composing a tone-based diversity subchannel by performing a tone-based permutation on resources remained after the resource allocation unit based diversity subchannel is composed.

Apparatus and method for composing diversity subchannel in wireless communication system

Growing community of inventors

Seongnam-si, South Korea

Ho-Kyu Choi