Wirless network
View Patent ↗A wireless network is disclosed including at least one base station and a plurality of assigned terminals for exchanging user data and control data. The base station is arranged for transmitting the start time of at least one signaling sequence of at least terminal. For evaluating the signaling sequences transmitted by the terminals, the base station includes a device for correlating a received signaling sequence and for detecting the pulse evolving from a received and correlated signaling sequence. A terminal generates a signaling sequence by folding two code sequences.
1. A wireless network comprising:
at least one base station;
a plurality of assigned terminals for exchanging user data and control data; wherein the at least one base station is configured to (1) have a predetermined time interval for detection of a signaling sequence, wherein the predetermined time interval is based on a start time of a signaling sequence for a terminal, transmission channel properties, and autocorrelation properties of the signaling sequences of the terminals (2) transmit a start time of at least one signaling sequence of at least one terminal, (3) detect a signaling sequence using the predetermined time interval (4) correlate a received signaling sequence, and (5) detect a pulse evolved from a received correlated signaling sequence and wherein
a terminal is configured to generate a signaling sequence by folding two code sequences.
2. The wireless network as claimed in claim 1 , wherein a first code sequence is a Barker sequence having 13 time intervals and a second code sequence is a Gold sequence having 256 time intervals.
3. The wireless network as claimed in claim 1 , wherein a first base station includes two series-connected matched filters or one matched filter and one mismatched filter connected downstream of the matched filter for generating at least one pulse after a signaling sequence comprising two convoluted code sequences has been received and includes a peak detector and the peak detector is arranged for detecting at least a pulse assigned to a terminal during a specific detection window whose start time and duration are determined by the channel properties and the start time of a signaling sequence.
4. The wireless network as claimed in claim 1 , wherein the transmission channel properties include an estimate of propagation delay and a delay spread characteristic based on multipath propagation.
5. The wireless network as claimed in claim 1 , wherein a first base station includes two different matched filters for generating respective pulses after a first or a second signaling sequence is received.