Lg Electronics Inc.

Sk Telecom Company, Ltd.

Dong Hi Sim

Ji Young Huh

Yong Ho Seok

Jae Young Lee

Sook Hyun Yang

Bong Hoe Kim

Dong Youn Seo

Eun Young Park

Moon Jeung Joe

Hyoun Hee Koo

Alexander A Safonov

Joon Woong Kim

Hyeon Soo Lee

Min Geun Yoon

The present invention proposes a scheme for realizing a structure and a technology which can support direct linkage between services in an inter-MEC environment, the services being mounted in different MEC systems, respectively.

Edge integration control device and method for searching for a MEC application based on linkage triggering

When a user equipment accessing an access network transmits an emergency call initiating request message to an E-CSCF, the E-CSCF transmits a message requesting for retrieving a current location of the user equipment to a location retrieval unit and the location retrieval unit measures the current location of the user equipment using the access network and transmits a message including the measured location information to the E-CSCF. Then, the E-CSCF establishes a communication channel between the user equipment and an emergency center corresponding to the current location information of the user equipment using a location service response message. Accordingly, it is possible to efficiently provide an emergency location service regardless of structures of networks.

Method and system for providing an emergency location service using interoperability between IMS core and access network

A protocol for a peer power save mode (PPSM) in a tunneled direct link setup (TDLS) wireless network and a system therefor are provided. A station (STA) set up a TDLS link can send a frame having a power management bit set to a peer STA to enter into a power save mode (PSM). In this case, the station entering into the PSM operates in a PPSM client mode. When the peer STA operates in the PPSM client mode, the STA can operate in the PPSM access point (AP) mode or can enter into the PPSM client mode. The STA operating in the PPSM AP mode buffers data for the STA operating in the PPSM client mode and informs the peer STA of information indicating that there is buffered data by the use of a peer traffic indication frame or the like. In principle, a U-APSD procedure can be applied to the transmission of data through a direct link from the STA operating in the PPSM AP mode to the STA operating in the PPSM client mode.

Peer power save mode in tunneled direct link setup (TDLS) wireless network

A method for transmitting location information includes the steps of: a) receiving a start message including MO (mobile originated location request) mode information from a first terminal; b) calculating location information of the first terminal; and c) transmitting the calculated first terminal's location information according to the MO (mobile originated location request) mode information. A method for transmitting location information in a Secure User Plane Location (SUPL) protocol of a first SUPL Enabled Terminal (SET), a SUPL Location Platform (SLP), and a second SUPL Enabled Terminal (SET) includes the steps of: a) receiving a start message including MO (mobile originated location request) mode information from the first SET; b) calculating location information of the first SET; and c) transmitting the calculated first SET's location information to any one of the first SET and the second SET according to the MO (mobile originated location request) mode information.

Method for transmitting location information

Disclosed is a wireless network system and a method for transmitting and receiving various information and data related to broadcast or multicast services in a wireless network.

Wireless network system and communication method in a wireless network

The present invention relates to perform presence service in a wireless communication system that is available to a mobile device.

Performing presence service in a wireless communication system

Disclosed is a wireless network system and a method for sending and receiving various information and data related to broadcast or multicast services in a wireless network.

A method of mobile communication including a transmitter having multiple transmitters and a receiver having multiple receivers. The method includes adding a cyclic redundancy check (CRC) code to a data block to be transmitted and spatially segmenting the data block according to a modulation scheme and a coding rate of each respective transmit antenna of the multiple antennas.

Mobile communication system and signal processing method thereof

A method for transmitting signal in a mobile communication system allocates symbols which will be transmitted to transmitting antennas appropriately as considering detection efficiencies of symbols on a higher order modulation constellation and correlation between antennas, and thereby independent symbol transmission can be made and independence between antennas can be improved to improve accuracy of symbol detection on a receiving end and signal transmitting function of the system can be improved. Therefore, a pair of symbols having the longest distance between symbols is arranged to a pair of antennas having higher correlation and a pair of symbols having the shortest distance between symbols is arranged to a pair of antennas having lower correlation. Also, symbols having higher detection efficiency are allocated to antennas having higher correlation and symbols having lower detection efficiency are allocated to antennas having lower correlation.

Apparatus and method for transmitting signal in mobile communication system

A method for processing signals in a multi-antenna CDMA radio communication system extracts control signals by despreading signals transmitted to a specific user through the antennas using a spreading factor, estimating weight values of respective ones of the antennas using at least one signal separated from the extracted control signals, and extracting data signals by despreading remaining signals, except for the control signals, using control information provided from control channels. The method then multiplies the extracted data signals by the weight values of the respective antennas, and combines and outputs the data signals multiplied by the weight values.

Signal processing method and apparatus in CDMA radio communication system

A signal transmission apparatus and method for a mobile communication system are disclosed. Beamforming is performed on each symbol using the correlation as well as the independence between antennas, and then the beamformed symbols are transmitted. Thus, both the correlation between antennas and the independence between antennas are all considered, so that the gain according to the correlation between antennas can be also obtained. In addition, the additional gain would lead to enhancement of the symbol detection capability of the sending end, so that performance of the MIMO system can be remarkably heightened.

The present invention relates to an adaptive algorithm and device for the same, for calculating a weight vector to be applied to an adaptive array antenna system, suggesting an adaptive algorithm suitable for calculating an autocovariance matrix of signal vectors of signals received from antennas before despreading in a known channel code, and an autocovariance matrix of signal vectors of signals received from antennas after being despread in the known channel code. Particularly, the calculation is carried out with the autocovariance matrix of the signal vector before the despread divided into diagonal components and non-diagonal components.

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Seoul, South Korea

Dong Hi Sim