| Patent application number | Description | Published |
|---|
| 20080205334 | APPARATUS AND METHOD FOR DATA TRANSMISSION/RECEPTION IN MOBILE TELECOMMUNICATION SYSTEM - Disclosed is an apparatus and method for data transmission/reception in a mobile telecommunication system, and more particularly to an apparatus and method for data transmission/reception in a mobile telecommunication system employing an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The method includes identifying a CHannel IDentifier (CH_ID), which represents a first resource indicated by a Forward Shared Control CHannel (F-SCCH) among all resources; identifying a second resource indicated by resource assignment information for group terminals; and when the first resource includes all or a part of the second resource, and a third resource unused by the group terminals exists in the entire or part of the second resource, transmitting/receiving data by means of the third resource and a fourth resource, which is a remaining part of the first resource excluding the second resource. | 08-28-2008 |
| 20080212550 | METHOD AND APPARATUS FOR MANAGING CONTROL CHANNEL IN A MOBILE COMMUNICATION SYSTEM USING MULTIPLE ANTENNAS - A method for transmitting and receiving a control channel message in a mobile communication system using multiple antennas is provided. A base station determines whether a common pilot is used or a dedicated pilot is used. It also determines whether a corresponding Multiple Input Multiple Output (MIMO) mode is a Multi-CodeWord (MCW) MIMO mode or a Single CodeWord (SCW) MIMO mode, and determines whether knockdown precoding is used or ready-made precoding is used. The base station generates a control channel message field including a pilot pattern and a precoding type according to the determination results, and transmits the generated control channel message to the terminal. The terminal receives a control channel message transmitted from a base station. The terminal determines whether a common pilot is used or a dedicated pilot is used, whether a corresponding MIMO mode is an MCW MIMO mode or an SCW MIMO mode, and whether knockdown precoding is used or ready-made precoding is used. The terminal analyzes the control channel message field according to the determination results, and determines a data reception method according to the analysis result. | 09-04-2008 |
| 20080212700 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL CHANNEL MESSAGE IN A MIMO MOBILE COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving a control channel message in a Multiple Input Multiple Output (MIMO) mobile communication system are provided, in which a control channel message generator generates a pilot/MIMO field indicating at least one of a pilot format, a MIMO transmission rank being a number of transmission layers for transmitting encoded packet streams, and precoding information for MIMO data transmission, and outputs a control channel message including the pilot/MIMO field, and a transmission module converts the control channel message to a radio signal and transmits the radio signal to an MS. In the case of using common pilots for data demodulation and at least one of knock-down precoding and ready-made precoding for the MIMO transmission, the pilot/MIMO field includes information about the at least one precoding. In the case of dedicated pilots for data demodulation, the pilot/MIMO field indicates a format of the dedicated pilots. | 09-04-2008 |
| 20080214229 | METHOD AND APPARATUS FOR DETERMINING REVERSE TRANSMISSION POWER OF MOBILE STATION IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM - A mobile station apparatus for determining reverse transmission power in an Orthogonal Frequency Division Multiplexing system is provided. A reception module receives from a base station a Reverse-Link Assignment Message including a Packet Format (PF) field and a Reverse-Link Power Control (RLPC) field. A power level adjuster determines a nominal reverse transmission power level depending on information of the PF field, and determines a relative final transmission power level shifted by an offset value defined in the RLPC field from the nominal transmission power level. | 09-04-2008 |
| 20080232495 | METHOD FOR MAPPING PHYSICAL DOWNLINK CONTROL CHANNEL TO RESOURCES AND APPARATUS FOR TRANSMITTING/RECEIVING THE MAPPED PHYSICAL DOWNLINK CONTROL CHANNEL IN A WIRELESS COMMUNICATION SYSTEM - A method for mapping a Physical Downlink Control Channel (PDCCH) to resources and an apparatus for transmitting/receiving the mapped PDCCH in a wireless communication system are provided, in which if at least one PDCCH is scheduled to be transmitted in a subframe according to a predetermined scheduling scheme, the PDCCHs are concatenated, interleaved, and mapped to at least one Resource Element (RE). | 09-25-2008 |
| 20080310535 | METHOD AND APPARATUS FOR SYMBOL TRANSMISSION IN AN OFDM MOBILE COMMUNICATION SYSTEM - A mapping method and an apparatus, which uniformly distribute bits included in transmission symbols to various resource blocks in mapping the transmission symbols to the resource blocks for transmission in an OFDMA mobile communication system. A sub-packet generator generates a sub-packet by selecting symbols from coded symbols including a first bit group and a second bit group, the first bit group having a different priority than the second bit group. A divider divides each bit group of the sub-packet into as many bit streams as previously allocated resource blocks. A resource block mapper maps the divided bit streams to the resource blocks, respectively, and outputs the bit streams for transmission. | 12-18-2008 |
| 20080317146 | APPARATUS AND METHOD FOR CHANNEL-INTERLEAVING AND CHANNEL-DEINTERLEAVING DATA IN A WIRELESS COMMUNICATION SYSTEM - An interleaving and deinterleaving apparatus and method in a wireless communication system are provided, in which it is determined whether coded bits to be transmitted in one modulation symbol are selected from a plurality of code blocks. The coded bits are interleaved on a modulation symbol basis if the coded bits to be transmitted in the modulation symbol are selected from a plurality of code blocks. | 12-25-2008 |
| 20110032884 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING AN UPLINK ACKNOWLEDGEMENT CHANNEL FOR A DOWNLINK DATA CHANNEL IN A MOBILE COMMUNICATION SYSTEM USING ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS - A communication apparatus and method of a mobile communication system using Orthogonal Frequency-Division Multiple Access (OFDMA). A method of transmitting an uplink acknowledge channel (ACKCH) for a downlink data channel in a mobile communication system using OFDMA includes: determining channel resources for each Control Channel Element (CCE), when a downlink control channel including at least two CCEs is received; generating uplink acknowledgement information by analyzing a received downlink data channel; assigning the at least two CCEs to at least two transmission antennas, respectively; and transmitting the uplink ACKCH including the uplink acknowledgement information through the transmission antennas. | 02-10-2011 |
