PILOT SIGNALS FOR SYNCHRONIZATION AND/OR CHANNEL ESTIMATION
First Claim
1. A communication device adapted for transmitting pilot bit patterns in a mobile communication environment, the communication device comprising:
- means for providing pilot bit patterns;
means for transmitting pilot bit patterns through a physical channel having a radio frame with 15 slots, each slot including pilot bits having a length Npilot, where 2≦
Npilot≦
16,wherein pilot bit patterns included in the 15 slots of the radio frame includes at least two of the following pilot bit patterns;
C1=(100011110101100),C2=(101001101110000),C3=(110001001101011),C4=(001010000111011),C5=(111010110010001),C6=(110111000010100),C7=(100110101111000), andC8=(000011101100101).
0 Assignments
0 Petitions
Accused Products
Abstract
The frame words of the embodiments are suitable for frame synchronization and/or channel estimation. By adding the autocorrelation and/or cross-correlation functions of frame words, double maximum values equal in magnitude and opposite polarity at zero and middle shifts are obtained. This property can be used to slot-by-slot, double-check frame synchronization timing, single frame synchronization and/or channel estimation and allows reduction of the synchronization search time. Further, the present invention allows a simpler construction of a correlator circuit for a receiver. A frame synchronization apparatus and method using an optimal pilot pattern is used in a wide band code division multiple Access (W-CDMA) next generation mobile communication system.
-
Citations
10 Claims
-
1. A communication device adapted for transmitting pilot bit patterns in a mobile communication environment, the communication device comprising:
-
means for providing pilot bit patterns; means for transmitting pilot bit patterns through a physical channel having a radio frame with 15 slots, each slot including pilot bits having a length Npilot, where 2≦
Npilot≦
16,wherein pilot bit patterns included in the 15 slots of the radio frame includes at least two of the following pilot bit patterns; C1=(100011110101100), C2=(101001101110000), C3=(110001001101011), C4=(001010000111011), C5=(111010110010001), C6=(110111000010100), C7=(100110101111000), and C8=(000011101100101). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification