Hanaro Telecom., Inc.
91Patents
81Active
91Granted
51Portfolio score
Filing activity: Jun 23, 2004 → Aug 18, 2011 · 78 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7813291B2 | Method and apparatus for requesting and reporting channel quality information in mobile communication system | Electricity | 35 | Expired |
| US7768966B2 | Method for traffic indication and channel adaptation for sleep mode terminals, and an apparatus thereof | Electricity | 29 | Expired |
| US7752519B2 | Method for creating feedback message for ARQ in mobile communication system | Electricity | 26 | Active |
| US7551937B2 | Method and device for allocating radio resources in wireless portable network system | Emerging Cross-Sectional Technologies | 25 | Expired |
| US7631239B2 | Method for retransmitting packet in mobile communication system and computer-readable medium recorded program thereof | Electricity | 24 | Expired |
| US8074138B2 | Decoding apparatus and method thereof | Electricity | 23 | Active |
| US7860067B2 | Method for dynamic address allocation using mobile IP in wireless portable Internet system | Electricity | 21 | Active |
| US7907733B2 | Method for managing traffic encryption key in wireless portable internet system and protocol configuration method thereof, and operation method of traffic encryption key state machine in subscriber station | Electricity | 19 | Active |
| US7796695B2 | Method for allocating data and pilots, and transmitting method and device and receiving method and device using the same in orthogonal frequency division multiple access system | Electricity | 16 | Active |
| US7925234B2 | Method for maximal ratio combining of spatially filtered signals and apparatus therefor | Electricity | 16 | Active |
| US7428267B2 | Uplink channel estimation system for orthogonal frequency division multiple access system and method thereof | Electricity | 16 | Active |
| US7873364B2 | Apparatus and method for accounting in wireless communication system | Electricity | 12 | Active |
| US7769414B2 | System and method for controlling power saving mode in wireless portable network system | Emerging Cross-Sectional Technologies | 8 | Active |
| US8588189B2 | Wireless internet terminal and packet transmission method for improving quality of service | Electricity | 8 | Expired |
| US7515641B2 | Apparatus and method for processing ranging channel in orthogonal frequency division multiple access system | Electricity | 8 | Active |
| US7757155B2 | Signal transmitting and receiving device and method of mobile communication system | Electricity | 7 | Expired |
| US8134914B2 | Subcarrier allocation apparatus and method, subcarrier de-allocation apparatus and method in OFDM system | Electricity | 7 | Active |
| US8600420B2 | Method and apparatus for uplink timing synchronization with ranging signal in mobile communication system | Electricity | 6 | Active |
| US7873050B2 | Apparatus and method for downlink packet scheduling in base station of a portable internet system | Electricity | 5 | Active |
| US7801088B2 | Synchronous orthogonal frequency division multiplexing receiving apparatus in multi-cell environment and method thereof | Electricity | 5 | Active |
| US7746966B2 | Method for automatic gain control before initial synchronization in OFDM system and apparatus thereof | Electricity | 5 | Active |
| US8027368B2 | Terminal in wireless communication system and ranging method for dynamically changing ranging period thereof | Electricity | 4 | Active |
| US8184606B2 | Apparatus and method for monitoring base station signal in communication system having multiple antennas | Electricity | 4 | Active |
| US7765459B2 | Viterbi decoder and viterbi decoding method | Electricity | 4 | Active |
| US7477190B2 | Smart antenna beamforming device in communication system and method thereof | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.