US 2010/0062716 A1 · REFERENCE SIGNAL SEQUENCE REPRESENTATION IN WIRELESS COMMUNICATION DEVICE

Abstract

A wireless communication device including a controller communicably coupled to a transceiver. In one embodiment, the controller generates a QPSK sequence having multiple elements wherein each element includes real and imaginary parts. In another embodiment, the sequence is selected from a groups of sequences stored on a user terminal. Thereafter, the controller generates a reference signal based on the information representative of the selected QPSK sequence.

Claims17

Dependent claims

A wireless communication user terminal, the terminal comprising:

a transceiver;
a controller communicably coupled to the transceiver and to memory,
information representative of a plurality of QPSK sequences stored in the memory, each QPSK sequence includes a plurality elements,
each element includes a real part and an imaginary part having values selected from a group of values comprising ±1/√(2),
the controller configured to select a QPSK sequence and to generate a reference signal based on the information representative of the selected QPSK sequence.

2 more elements

A wireless communication user terminal, the terminal comprising:

a transceiver;
a controller communicably coupled to the transceiver and to memory,
the controller configured to generate a QPSK sequence having a plurality elements, each element including 12 real parts and 12 imaginary parts,
the QPSK sequence generated selected from a group of QPSK sequences, the real parts of the elements of the group of QPSK sequences are
Element Real Parts * √(2)
1
2
3
4
5
6
7
8
9
10
11
12
QPSK_Sequences
1
1
1
1
1
−1
1
1
1
−1
1
−1
1
2
−1
−1
1
1
−1
1
−1
−1
1
−1
1
1
3
−1
−1
−1
1
−1
1
1
1
1
1
1
−1
4
1
1
1
−1
−1
1
1
−1
1
1
−1
−1
5
1
−1
1
1
1
−1
1
1
−1
1
−1
−1
6
−1
−1
1
−1
−1
−1
−1
1
−1
1
1
−1
7
−1
1
−1
1
−1
−1
1
1
1
−1
−1
−1
8
−1
−1
−1
−1
−1
1
1
−1
1
−1
−1
−1
9
1
1
−1
1
1
−1
1
−1
1
1
1
1
10
1
1
1
1
1
1
−1
−1
1
−1
−1
1
11
1
1
−1
1
1
−1
1
−1
1
−1
1
−1
12
−1
−1
−1
1
1
1
−1
1
−1
1
1
1
13
−1
1
−1
1
1
1
−1
1
1
−1
1
−1
14
1
−1
1
−1
1
1
−1
1
1
−1
1
1
15
1
1
−1
−1
−1
−1
1
1
−1
1
−1
−1
16
−1
−1
1
1
−1
1
1
1
1
−1
1
1
17
1
−1
−1
−1
−1
−1
1
1
−1
−1
−1
1
18
−1
1
−1
−1
1
1
−1
1
−1
−1
−1
−1
19
−1
1
−1
−1
1
−1
1
1
1
−1
−1
−1
20
1
−1
−1
−1
−1
−1
−1
1
1
−1
1
1
21
1
−1
−1
−1
−1
−1
1
−1
1
−1
−1
−1
22
1
−1
−1
1
−1
−1
−1
1
1
1
−1
−1
23
1
1
−1
1
−1
−1
1
1
−1
1
−1
1
24
1
−1
−1
1
1
−1
1
1
1
−1
−1
−1
25
−1
1
1
−1
1
−1
−1
−1
1
1
−1
−1
26
1
1
−1
1
−1
−1
−1
1
1
1
−1
−1
27
−1
1
−1
−1
−1
1
1
1
1
1
1
−1
28
−1
1
1
−1
1
−1
1
−1
−1
−1
1
1
29
−1
−1
1
1
1
−1
1
−1
−1
1
1
−1
30
1
−1
1
1
1
1
−1
−1
−1
−1
1
1
the imaginary parts of the elements of the group of QPSK sequences are
Element Imaginary Parts * √(2)
1
2
3
4
5
6
7
8
9
10
11
12
QP
1
−1
−1
1
−1
−1
1
1
1
−1
1
1
−1
2
1
1
1
−1
1
1
−1
−1
−1
1
−1
1
3
−1
1
1
1
−1
−1
−1
1
−1
−1
1
−1
4
1
1
1
1
−1
1
−1
1
−1
−1
−1
1
5
1
1
1
−1
1
1
−1
−1
−1
1
1
1
6
−1
1
−1
1
1
1
−1
1
1
−1
−1
−1
7
−1
−1
−1
−1
−1
1
1
−1
1
1
−1
−1
8
1
1
−1
1
−1
1
1
1
−1
−1
1
1
9
−1
−1
1
−1
1
1
1
−1
1
−1
−1
−1
10
−1
1
1
1
1
−1
−1
−1
1
−1
1
−1
11
−1
−1
−1
−1
−1
−1
1
1
1
−1
−1
−1
12
1
−1
−1
1
−1
−1
1
1
1
1
1
1
13
1
1
1
1
−1
1
1
−1
−1
1
1
1
14
1
1
1
1
1
−1
−1
−1
1
1
1
−1
15
−1
1
1
−1
1
1
1
1
1
1
−1
1
16
−1
1
−1
1
1
1
−1
−1
1
1
1
1
17
−1
1
−1
−1
−1
1
1
−1
1
1
−1
1
18
1
−1
1
−1
1
−1
−1
−1
−1
1
1
−1
19
1
−1
−1
−1
−1
1
−1
−1
1
−1
−1
−1
20
−1
−1
1
1
1
−1
−1
1
−1
1
−1
1
21
1
−1
−1
1
−1
1
1
−1
1
1
1
−1
22
−1
−1
−1
−1
−1
1
−1
1
−1
−1
1
1
23
−1
1
1
−1
−1
−1
−1
−1
−1
−1
−1
1
24
1
−1
−1
−1
−1
1
−1
1
−1
−1
−1
−1
25
−1
−1
−1
1
−1
1
−1
1
1
1
−1
−1
26
−1
−1
−1
−1
−1
−1
1
−1
−1
1
−1
1
27
−1
1
1
1
−1
1
1
−1
1
1
−1
1
28
−1
1
−1
−1
−1
1
1
1
1
1
−1
1
29
−1
1
1
−1
1
−1
1
1
−1
1
1
1
30
−1
−1
1
−1
−1
−1
1
−1
1
−1
1
1
indicates data missing or illegible when filed
the controller configured to generate a reference signal based on the QPSK sequence generated.

812 more elements

Dependencies are inferred from the claim text.

Abstract

Reference signal sequence representation in wireless communication device

Life of this patent

Abstract

Claims17

Reference signal sequence representation in wireless communication device

Life of this patent

Abstract

Claims17