Lg Electronics Inc.

Empire Technology Development LLC

Pcms Holdings, Inc.

Optis Cellular Technology, LLC

Wild Guard Ltd.

Microsoft Technology Licensing, LLC

Intellectual Discovery Co., Ltd.

Pantech Corporation

Pantech Co., Ltd.

Goldpeak Innovations Inc

Jin Sam Kwak

Yeong Hyeon Kwon

Seung Hee Han

Dong Cheol Kim

Min Seok Noh

Hyun Woo Lee

Sung Ho Moon

Han Gyu Cho

Jin Soo Choi

Jae Hoon Chung

Bin Chul Ihm

Wook Bong Lee

Jin Young Chun

Young Soo Yuk

Dragan Vujcic

Ki Seon Ryu

Dong Guk Lim

Hyun Oh Oh

Moon Il Lee

Hyun Soo Ko

Yong Ho Kim

Ju Hyung Son

Ja Ho Koo

Ki Ho Nam

Hong Won Park

Jinsoo Choi

Hee Jeong Cho

Seung Hyun Kang

Minseok Noh

Sung Ho Cho

Ae Ran Youn

JuHyung Son

In Uk Jung

Gi Won Park

Dong Kyu Kim

Doo Hyun Sung

Seung Woo Nam

Geonjung Ko

Su Nam Kim

Kyu Jin Park

Eun Jong Lee

Sungho Moon

Jong Young Han

Seong Ho Moon

Kiho Nam

Hyun Hwa Park

Ji Wook Chung

Moon Ii Lee

Sung Gu Cho

Seunghee Han

Jian Xu

Hyung Ho Park

Jin-Young Chun

Hangyu Cho

Hyunwoo Lee

In Yong Jung

Jeong Ki Kim

Suk Woo Lee

Min Seok Oh

Sanghoon Kim

Ki Sun Ryu

Yeong Hyeong Kwon

Vujcic Dragan

Min Seo Hon

Min Seok Hon

Yong Ho Seuk

A base station transmits a random access response in response to a random access request (random access preamble) of a user equipment. The random access response includes information about a time when the random access request is transmitted and sequence number information of the random access request (random access preamble). The user equipment checks whether the received random access response is the response of the random access request transmitted by the user equipment, using the information about the time when the random access request is transmitted and the sequence number information included in the received random access response.

Method for transmitting and receiving random access request and transmitting and receiving random access response

A method and apparatus for requesting uplink resources in a wireless communication system is provided. A user equipment determines whether a scheduling request for requesting uplink resources is triggered. If the scheduling request is triggered, the user equipment transmits a first set of frequency domain sequences and a second set of frequency domain sequences in a subframe.

Method of transmitting scheduling request in a wireless communication system

Systems and methods are described for estimating a direction of interest of a user. In some embodiments, a method of estimating a direction of interest of a user includes tracking a head orientation of the user, detecting a shift in the head orientation, determining a head rotation rate during the shift in the head orientation, and estimating the direction of interest of the user based at least in part on the head rotation rate.

Systems and methods for region of interest estimation for virtual reality

An example disclosed method in accordance with some embodiments includes: receiving head tracking position information from a client device, the head tracking position information associated with a user at the client device; predicting a future head position of the user at a scan-out time for displaying a virtual reality (VR) video frame, wherein the VR video frame is displayed to the user via the client device; determining an overfill factor based on an expected error in the predicted future head position of the user; rendering an overfilled image based on the predicted future head position of the user and the overfill factor; and sending the VR video frame including the overfilled image to the client device for display to the user.

Systems and methods employing predictive overfilling for virtual reality

A symbol mapping method for repetition coding is disclosed. The symbol mapping method comprises performing repetition coding on codeword to output repeated codeword symbols, and mapping the repeated codeword symbols with subcarriers located in different localized resource blocks. According to the embodiments of the present invention, it is possible to obtain maximum reliability in a receiving side by mapping codeword bits with subcarriers to reduce the number of bits having low reliability when a transmitting side uses repetition coding. Also, it is possible to improve decoding throughput and obtain channel diversity.

Symbol mapping method for repetition channel coding

Systems and methods are described for determining positions of indoor localization beacons without requiring a physical site survey. In a coarse positioning method, a mobile node receives beacon signals that identify rooms (such as stores in a shopping mall) in which the beacons are located. The mobile node obtains floor plan information relating to the building and estimates beacon locations based on the floor plan and beacon signal strength. The estimated beacon locations may be arranged in a predetermined geometric pattern based on the number of beacons in a room. In a fine positioning method, a mobile node recognizes its proximity to a beacon and responsively measures the distance to other beacons. Estimated beacon positions may be used to estimate the location of the mobile node using trilateration or other techniques.

System and method for indoor localization using beacons

A method and apparatus for transmitting or detecting primary synchronization signal. The receiver receives primary synchronization signal from a transmitter, and detects the sequence used in the received primary synchronization signal by using three root indexes. Here, the primary synchronization signal is generated by using a Zadoff-Chu sequence having one of the three root indexes. The three root indexes comprise a first index and a second index, and a sum of the first index and the second index corresponds to the length of the Zadoff-Chu sequence.

Method and apparatus for transmitting or detecting a primary synchronization signal

Systems and methods described that provide for sending a first temporal portion of video to a client, wherein video quality of a first spatial region associated with a first direction of view is sent with higher quality than video data for another spatial region not associated with the first direction of view; sending a second temporal portion of the video to the client; and responsive to determining that a significant event, audio or video or a combination, occurred during the second temporal portion and corresponds with a second direction of view that is associated with a second spatial region, sending higher quality video for the second spatial region than video data for another spatial region. Virtual reality (VR) video, including 360-degree VR video may thus be foveated, based on contextual information in the video data and corresponding audio data, combined with field of view predictions based upon user motion.

Field-of-view prediction method based on contextual information for 360-degree VR video

Systems and methods are described for determining a material of an object using sound. Exemplary methods employ a head-mounted display (HMD). In an embodiment, the method includes determining, using a depth camera function of the HMD, a distance to an object; emitting, using a speaker of the AR HMD, a generated sound signal; and responsive to emitting the sound signal, detecting a reflected sound signal. Relative to the emitted sound signal, the HMD determines attenuation levels for a temporal portion of the reflected sound signal for at least two frequency ranges of the reflected sound signal, the temporal portion of the reflected sound signal corresponding to a computed round-trip travel time of the sound signal traveling the determined distance to and from the object. Based upon the determined attenuation levels, the determines a material corresponding to the attenuation levels.

System and method using sound signal for material and texture identification for augmented reality

A method for transmitting a random access preamble to a base station includes generating the random access preamble from a Zadoff-Chu (ZC) sequence, wherein the random access preamble is defined by cyclic shift (C) of the ZC sequence; and transmitting the random access preamble to the base station.

Method for setting cyclic shift considering frequency offset

Growing community of inventors

Anyang-si, South Korea

Jin Sam Kwak