Lg Electronics Inc.

Evolved Wireless LLC

Equo IP LLC

Amazon Technologies, Inc.

Tq Lambda LLC

Hyun Hwa Park

Seung Hee Han

Min Seok Noh

Yeong Hyeon Kwon

Dong Cheol Kim

Hyun Woo Lee

Young Woo Yun

Dong Kyu Kim

Jin Sam Kwak

Dragan Vujcic

Ae Ran Youn

Yeon Hyeon Kwon

Yeong-Hyeon Kwon

Jin Sam Co Lg Electronics Inc Kwak

Disclosed is a data transmission method in a mobile communication system. The data transmission method through a code sequence in a mobile communication system includes grouping input data streams into a plurality of blocks consisting of at least one bit so as to map each block to a corresponding signature sequence, multiplying a signature sequence stream, to which the plurality of blocks are mapped, by a specific code sequence, and transmitting the signature sequence stream multiplied by the specific code sequence to a receiver.

Preamble sequence for a random access channel

Method of transmitting data in a mobile communication system

Detection in a communication system using a preamble sequence

A method of generating a code sequence in a wireless communication system is disclosed. More specifically, the method includes recognizing a desired length of the code sequence, generating a code sequence having a length different from the desired length, and modifying the length of the generated code sequence to equal the desired length. Here, the step of modifying includes discarding at least one element of the generated code sequence or inserting at least one null element to the generated code sequence.

Method and apparatus for generating and transmitting code sequence in a wireless communication system

A method for a terminal to communicate with a network using a plurality of frequency band cells, and the terminal for performing the method are discussed. The method according to one embodiment includes acquiring frequency bands information on which of frequency bands measurement can be performed and on which of the frequency bands measurement cannot be performed. The frequency bands information is acquired from outside of the terminal. The method according to the embodiment further includes performing measurement on the frequency bands on which measurement can be performed based on the frequency bands information; acquiring measurement result information on the plurality of frequency band cells based on the measurement; and communicating data with a network on the plurality of frequency band cells considering the measurement result information.

Apparatus and method for dynamically allocating radio resource

A method is provided for performing a random access procedure by a Node-B with a specific user equipment (UE) within a cell in which a plurality of UEs are located together. The Node-B transmits a random access procedure configuration including a basic sequence index related with a random access channel and zero correlation zone (ZCZ) configuration. The Node-B receives a random access preamble corresponding to the random access procedure configuration from the UE over the random access channel. A length of a cyclic part and a length of a sequence part of the random access preamble are differently given based on the random access procedure configuration. The random access preamble is generated from Constant Amplitude Zero Auto-Correlation (CAZAC) sequences based on the basic sequence index by applying a length of a cyclic shift according to the ZCZ configuration.

Random access method and signaling method for the same

A method of generating a code sequence and method of adding additional information using the same are disclosed, by which a code sequence usable for a channel for synchronization is generated and by which a synchronization channel is established using the generated sequence. The present invention, in which the additional information is added to a cell common sequence for time synchronization and frequency synchronization, includes the steps of generating the sequence repeated in time domain as many as a specific count, masking the sequence using a code corresponding to the additional information to be added, and transmitting a signal including the masked sequence to a receiving end.

Method of generating code sequence and method of transmitting signal using the same

A method for performing a random access procedure by a Node-B with a specific user equipment (UE) within a cell in which a plurality of UEs are located together. System information is transmitted for at least one of a basic sequence index and a length of a zero correlation zone (ZCZ) to the specific UE. A preamble sequence is received from the specific UE over a random access channel. The preamble sequence is generated from Constant Amplitude Zero Auto-Correlation (CAZAC) sequences distinguishable by at least one of the basic sequence index and a length of a Cyclic Shift (CS) applied to the preamble sequence. The length of the CS applied to the preamble sequence is given by one among a plurality of application lengths determined based on the length of the ZCZ. A number of the plurality of lengths are differently given based on a type of the specific UE.

A method for transmitting a random access preamble from a user equipment is presented. The method includes generating the random access preamble by applying a circular shift to a code sequence having a sequence identifier, allocating the random access preamble to consecutive resource blocks, applying subcarrier spacing for the random access preamble to the consecutive resource blocks, and transmitting, via a transmitter of the user equipment, the random access preamble.

Growing community of inventors

Anyang-si, South Korea

Hyun Hwa Park