Apparatus and method for preamble pseudo noise code allocation in broadband wireless communication system
First Claim
1. A preamble Pseudo Noise (PN) code allocation method employing a plurality of Frequency Allocations (FAs), the method comprising:
- determining an index for each of a plurality of FAs, at an FA index determining device;
allocating a first of a plurality of preamble PN indexes to a first FA at a preamble PN index allocation device, wherein each of the plurality of preamble PN indexes corresponds to a different PN code;
determining offsets between an index of the first FA and each remaining FA of the plurality of FAs at a preamble PN index allocation device for remaining FA indexes; and
allocating preamble PN indexes to the remaining FAs, wherein each preamble PN index is shifted from the first preamble PN index by an amount based on an offset of its corresponding remaining FA index, and wherein a different preamble PN index is allocated to each FA; and
transmitting signals from the base station over the plurality of FAs having corresponding allocated preamble PN indexes.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and a method for preamble pseudo noise code allocation in a broadband wireless communication system are provided. The method includes defining an inherent index for each FA, allocating a preamble PN index to base stations using a reference FA index, defining an inherent offset by each FA for remaining FA indexes, and shifting the preamble PN index allocated to the base stations using the reference FA index by the defined offset, and allocating the preamble PN index to base stations using the remaining FA indexes. The price of a system can thus be lowered by reducing a Peak-to-Average Power Ratio (PAPR) of a preamble, increase the number of FAs that a specific amplifier can amplify, and immediately allocate a preamble PN index when adding a new FA during an operation of a system.
-
Citations
8 Claims
-
1. A preamble Pseudo Noise (PN) code allocation method employing a plurality of Frequency Allocations (FAs), the method comprising:
-
determining an index for each of a plurality of FAs, at an FA index determining device; allocating a first of a plurality of preamble PN indexes to a first FA at a preamble PN index allocation device, wherein each of the plurality of preamble PN indexes corresponds to a different PN code; determining offsets between an index of the first FA and each remaining FA of the plurality of FAs at a preamble PN index allocation device for remaining FA indexes; and allocating preamble PN indexes to the remaining FAs, wherein each preamble PN index is shifted from the first preamble PN index by an amount based on an offset of its corresponding remaining FA index, and wherein a different preamble PN index is allocated to each FA; and transmitting signals from the base station over the plurality of FAs having corresponding allocated preamble PN indexes. - View Dependent Claims (2, 3, 4)
-
-
5. A base station employing a plurality of Frequency Allocations (FAs), the base station comprising:
-
an FA index determining device for determining an index for each of a plurality of FAs; a preamble PN index allocation device for allocating a first of a plurality of preamble PN indexes to a first FA, wherein each of the plurality of preamble PN indexes correspond to a different PN code; and a second preamble PN index allocation device for determining offsets between an index of the first FA and each remaining FA of the plurality of FAs, allocating preamble PN indexes to the remaining FAs, wherein each preamble PN index is shifted from the first preamble PN index by an amount based on an offset of its corresponding remaining FA index, and wherein a different preamble PN index is allocated to each FA. - View Dependent Claims (6, 7, 8)
-
Specification