Invention Grant
- Patent Title: Apparatus and method for allocating code resources to uplink ACK/NACK channels in a cellular wireless communication system
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Application No.: US15195172Application Date: 2016-06-28
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Publication No.: US10225060B2Publication Date: 2019-03-05
- Inventor: Aris Papasakellariou , Joon-Young Cho , Jianzhong Zhang , Zhouyue Pi , Ju-Ho Lee
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Cha & Reiter, LLC.
- Priority: KR10-2007-80943 20070810; KR10-2007-82030 20070814; KR10-2007-90688 20070906; KR10-2007-95265 20070919; KR10-2008-9291 20080129
- Main IPC: H04L5/00
- IPC: H04L5/00 ; H04L1/16 ; H04L1/18 ; H04B1/7097 ; H04J11/00 ; H04J13/18 ; H04W72/04 ; H04L27/26 ; H04J13/00 ; H04L1/00 ; H04W72/02 ; H04W84/04
Abstract:
A method and apparatus are provided for allocating code resources to ACK/NACK channel indexes, when UEs need ACK/NACK transmission in a wireless communication system in which a predetermined number of orthogonal cover Walsh codes is selected from among available orthogonal cover Walsh codes, at least one subset is formed, having the selected orthogonal cover Walsh codes arranged in an ascending order of cross interference, subsets are selected for use in first and second slots of a subframe, and the orthogonal cover Walsh codes of the subset selected for each slot and ZC sequence cyclic shift values are allocated to the ACK/NACK channel indexes.
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