US Patent No. 9,154,349

WIRELESS TRANSMITTER FOR HIGH MOBILITY AND HIGH THROUGHPUT AND MODE CONTROL METHOD THEREOF


Patent No. 9,154,349
Issue Date October 06,2015
Title Wireless Transmitter For High Mobility And High Throughput And Mode Control Method Thereof
Inventorship Il-Gu Lee, Seoul (KR)
Sok-Kyu Lee, Daejeon (KR)
Hyun-Kyu Chung, Daejeon (KR)
Assignee Electronics and Telecommunications Research Institute, Daejeon (KR)

Claim of US Patent No. 9,154,349

1. A wireless transmitter which performs reconfiguration for high mobility and high throughput, the wireless transmitter comprising:
memory; and
a processor coupled to the memory and configured to perform operations comprising:
determining a mobility level according to a movement speed of a wireless terminal;
deciding an operation mode according to at least one among the mobility level, a required data rate, and wireless link performance;
generating a plurality of clock signals having different frequencies from each other;
selecting clock signals corresponding to the operation mode among the plurality of clock signals according to the operation
mode; and

modulating transmission data by adjusting a signal bandwidth of a frequency domain and a transmission time of a time domain
using the selected clock signals,

wherein the signal bandwidth and the transmission time are adjusted according to the operation mode,
wherein the operation mode includes a multi-bandwidth mode and a multi-interval mode,
wherein the multi-bandwidth mode includes a full bandwidth mode, a half bandwidth mode, and a quarter bandwidth mode,
wherein the multi-interval mode includes a basic interval mode, a 2× interval mode of the basic interval mode, and a 3× interval
mode of the basic interval mode,

wherein the signal bandwidth and the transmission time are adjusted in the multi-bandwidth mode and the multi-interval mode
to optimize the reconfiguration, and

wherein the operation mode is decided by using a combination of reserved bits of plural signal fields in a frame.