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Registered METHOD FOR TRANSMITTING UPLINK DATA CONSIDERING HIDDEN NODE PROBLEM AND CHANNEL OCCUPATION OF USER TERMINALS
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METHOD FOR TRANSMITTING UPLINK DATA CONSIDERING HIDDEN NODE PROBLEM AND CHANNEL OCCUPATION OF USER TERMINALS
- Inventors
- Um Jung Sun, Jung Hoiyoon, Yoo Sungjin, Seung Keun Park
- Application No.
- 15565141 (2016.03.15)
- Publication No.
- 20180092128 (2018.03.29)
- Registration No.
- 10932294 (2021.02.23)
- Country
- UNITED STATES
- Project Code
- 15MR3700, Development of core technologies to improve spectral efficiency for mobile big-bang, Choi Hyung Do
- Abstract
- The present invention relates to a method for transmitting uplink data in a spectrum sharing wireless communication system wherein, in order to enhance uplink transmission efficiency in an LTE-U service, clear channel assessment (CCA) is performed on a user terminal so as to consider the hidden node problem, and channel occupation based on an uplink signal of another terminal is considered, wherein applied are: a method for generating and transmitting a random backoff counter value at a base station so that all terminals can equally use a channel connection parameter needed for transmitting an uplink subframe in an unlicensed band; and a downlink controlling method for scheduling an uplink multi-subframe.
- KSP Keywords
- Backoff counter, Clear Channel Assessment, Communication system, Controlling method, Hidden node problem, LTE-U, Uplink Subframe, User terminals, Wireless communication system, base station(BS), hidden node, spectrum sharing, transmission efficiency, unlicensed band, uplink transmission, wireless communication
- Family
| Status | Patent | Country | KIPRIS |
|---|---|---|---|
| Registered | Transmission Method of Uplink Data with Considering Hidden Node Problem and Channel Occupation of User Equipments | KOREA | |
| Registered | Transmission Method of Uplink Data with Considering Hidden Node Problem and Channel Occupation of User Equipments | KOREA | KIPRIS |