Lg Electronics Inc.

Skhynix Inc.

Postech Academy-industry Foundation

Su Hwan Lim

Sang Wook Lee

Dae Won Lee

Yoon Oh Yang

Joon Kui Ahn

In Kwon Seo

Man Young Jung

Dong Youn Seo

Seung Woo Nam

In Jae Jung

Seung Jin Ahn

Mu Ryong Kim

Woo Seong Kim

Kwang Il Kim

Seung Hee Han

Bong Hoe Kim

Suck Chel Yang

Suk Hyon Yoon

Dong Ik Lee

Young Woong Kim

Young Goo Park

Chi Jun Ahn

Kyung Soo Woo

Won Jun Lee

Young Woong Do

Hae Wook Han

Do Hwan Kim

Muryong Kim

Jin Yup Hwang

Kwang Ii Kim

The present invention relates to a method for controlling uplink transmission power and to a wireless device using same in a wireless communication system. The wireless device receives determines uplink transmission power in consideration of the overlap period between subframes between a first serving cell belonging to a first timing advance (TA) group and a second serving cell belonging to the second TA group, and transmits an uplink channel on the basis of the uplink transmission power.

Method for controlling uplink transmission power and wireless device using same

A method includes transmitting a random access preamble, receiving a random access response as a response of the random access preamble, wherein the random access response comprises an uplink resource assignment and a request for transmission of a Channel Quality Indicator (CQI), and transmitting the CQI in the uplink resource assignment.

Method of performing random access procedure in wireless communication system

Provided are a method and an apparatus for transmitting a message through a terminal in a wireless communication system. The terminal receives positioning reference signals (PRS) from a reference cell and at least one of the neighbor cells, receives an auxiliary data provision message including a reference cell PRS muting sequence for indicating a muting pattern of the PRS transmitted through the reference cell and a neighbor cell PRS muting sequence for indicating the muting pattern of the PRS transmitted through at least one of the neighbor cells from an enhanced serving mobile location center (E-SMLC), and transmits a reference signal time difference (RSTD) measured on the basis of the PRS received from the reference cell and the at least one of the neighbor cells to the E-SMLC.

Method and apparatus for transmitting location estimation message in wireless communication system

Disclosed is a method for wireless communication on heterogeneous networks. The method includes receiving, by a user equipment (UE), wireless local area network (WLAN) access information from a base station, performing, by the UE, an initial channel access to an access point (AP) based on the WLAN access information, wherein the WLAN access information includes beacon information to receive a beacon frame from the AP, identity information indicating an identifier of the AP and measurement information indicating a measurement configuration of the UE.

Method and apparatus for wireless communication on heterogeneous networks

There is provided a method of reducing transmission power. The method may comprise: receiving a network signal, if a carrier aggregation (CA) is configured and if the configured CA corresponds to an intra-band contiguous CA; applying an additional maximum power reduction (A-MPR) for a transmission, based on the network signal. If a configuration of the CA corresponds to a CA_1C and if the aggregated transmission bandwidth is the summation of 75 RBs and 75 RBs, a value of the A-MPR is specified for L_CRB&#x3e;10. The L_CRB is a length of a contiguous resource block allocation.

Method for reducing transmission power and terminal thereof

There is provided a method of transmitting an uplink for reference sensitivity test for intra-band non-contiguous CA in LTE-A system. The method may comprise: if a carrier aggregation (CA) is configured, if the configured CA corresponds to an intra-band CA, and if the configured CA corresponds to non-contiguous CA, transmitting an uplink on a primary component carrier using allocated resource blocks (RBs). if a channel bandwidth by an aggregation of the primary component carrier and a secondary component carrier is at least one of 25 RBs, 50 RBs, 75 RBs and 100 RBs and if a gap between two sub-blocks corresponds to a predetermined range, the number of the allocated resource block (RB) in the primary component carrier may be limited to 10 to meet a requirement for a reference sensitivity on a downlink of the secondary component carrier.

Method and terminal of transmitting an uplink signal with fewer transmission resource blocks to prevent a lowering in reference sensitivity in intra-band non-contiguous uplink carrier aggregation

A method for transmitting and receiving signals in a wireless communication system supporting a carrier aggregation of a plurality of component carriers is described. A base station transmits first information indicating a maximum number of resource blocks available for a first type mobile station, and transmits second information indicating an extended number of resource blocks available for a second type mobile station. The first type mobile station does not support the carrier aggregation and the second type mobile station supports the carrier aggregation. The extended number of resource blocks include at least one resource block allocated between each component carrier and a guard band. A mobile station receives the first and second information.

Method of transmitting and receiving channel bandwidth information in a wireless communication system

A method for transmitting an uplink signal by a user terminal includes: transmitting the uplink signal to a base station on a primary component carrier using allocated resource blocks (RBs), if a carrier aggregation (CA) is configured, if the configured CA corresponds to an intra-band CA, and if the configured CA corresponds to non-contiguous CA, wherein if a channel bandwidth by an aggregation of the primary component carrier and a secondary component carrier is at least one of 25 RBs, 50 RBs, 75 RBs and 100 RBs and if a gap between two sub-blocks corresponds to a predetermined range, the allocated resource blocks (RBs) in the primary component carrier is limited to 10 RBs to meet a requirement for a reference sensitivity on a downlink of the secondary component carrier.

A wireless communication system that includes a relay node is disclosed. The relay node supporting carrier aggregation (CA) comprises a first antenna for performing communication with a base station through a backhaul link; a plurality of backhaul link radio frequency (RF) chains connected with the first antenna, for transmitting and receiving a radio signal for backhaul link transmission; a second antenna for performing communication with a user equipment through an access link; a plurality of access link RF units connected with the second antenna, for transmitting and receiving a radio signal for access link transmission; and a control unit controlling the plurality of backhaul link RF chains and the plurality of access link RF chains to share at least a part of RF components between the backhaul link RF chains and the access link RF chains.

Architecture and method of relay node RF for carrier aggregation

A CMOS image sensor includes an active pixel structure suitable for sensing light incident from outside and converting a sensed light into an electrical signal, and an optical block structure suitable for blocking a visible light and passing a UV light to check and evaluate an electrical characteristic of the active pixel area. The UV pass filter includes first and second insulation layers comprising an insulator, and a metal layer formed between the first and second insulation layers.

CMOS image sensor having optical block area

A method is disclosed for, at a base station (BS), controlling transmit power of a user equipment (UE) in a wireless communication system. This includes checking BS-specific maximum transmit power information, applying Additive-Maximum Power Reduction (A-MPR) corresponding to a legacy UE to the BS-specific maximum transmit power so as to generate BS-specific maximum transmit power information for the legacy UE, and broadcasting the BS-specific maximum transmit power information for the legacy UE.

Method for controlling transmit power of user equipment in wireless communication system and apparatus therefor

The present invention relates to a method for measuring channel quality information in a system transmitting a signal via a plurality of component carriers. The method comprises the steps of: measuring a channel quality value of at least one component carrier allocated to a terminal from among a plurality of component carriers used to transmit a signal from a serving cell, to which the terminal belongs, to the terminal; comparing the channel quality value with a critical value for determining whether or not a channel quality of a component carrier not allocated to the terminal from among the plurality of component carriers must be derived; and, if the channel quality value is less than the critical value, measuring a channel quality value of a component not allocated to the terminal from among the plurality of component carriers.

Growing community of inventors

Anyang-si, South Korea

Su Hwan Lim