Apparatus and method for transmitting a reference signal in a wireless communication system
US-2015333945-A1 · Nov 19, 2015 · US
Method of generating reference signal in wireless communication system
US2022158809A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022158809-A1 |
| Application number | US-202217666365-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 7, 2022 |
| Priority date | Sep 7, 2007 |
| Publication date | May 19, 2022 |
| Grant date | — |
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Abstract
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A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method in a user equipment of a wireless communication system, the method comprising: generating a reference signal, the reference signal being generated hazed on a cyclic shift and a base sequence x u (n), wherein the base sequence x u (n) is expressed by x u (n)=e jp(n),pi/4 , and wherein a length of the base sequence x u (n) is one of 12 or 24, wherein, if the length of the base sequence x u (n) is 12, at least one of the sets of values provided in the below table is used as a set of values for the phase parameter p(n): Sequence index (u) p(0), . . . , p(11) 0 −1 −3 −1 1 1 −3 3 1 3 1 1 −1 1 −1 3 3 −3 3 1 −1 −1 −3 −1 1 −1 2 −1 1 −3 −1 −3 −3 −3 1 −1 −3 1 −1 3 −1 3 −1 1 1 −3 −3 −1 −3 −3 3 −1 4 −1 3 1 −3 3 −3 −1 −3 −3 3 −3 −1 5 −1 1 3 3 1 −3 3 3 1 3 −1 −1 6 −1 1 1 3 −1 1 1 1 −1 −3 3 −1 7 −1 1 1 −1 −1 −1 3 1 3 −3 3 −1 8 −1 3 1 3 1 −1 −1 3 −3 −1 −3 −1 9 −1 −3 1 −1 −3 1 1 1 −1 1 −3 −1 10 −1 −3 −1 −3 −1 −1 3 −3 −3 3 1 −1 11 −1 −3 1 1 −1 1 −1 −1 3 −3 −3 −1 12 −1 1 −3 −1 1 −1 3 3 1 −1 1 −1 13 −1 −3 1 3 −1 −1 3 1 1 1 1 −1 14 −1 −1 1 1 −1 −3 −1 −3 −3 1 3 −1 15 −1 −3 3 −1 1 1 −3 −1 −3 −1 −1 −1 16 −1 1 −3 3 −1 −1 3 −3 −3 −3 −3 −1 17 −1 3 3 −3 3 −3 −3 1 1 −1 −3 −1 18 −1 −1 −3 −1 −3 −3 1 1 3 −3 3 −1 19 −1 3 −3 1 −1 3 −1 −3 −3 −1 −1 −1 20 −1 1 −1 −3 −1 −1 1 3 −3 3 3 −1 21 −1 1 −1 1 1 3 −1 −1 −3 3 3 −1 22 −1 1 3 −3 −3 3 −1 −1 −3 −1 −3 −1 23 −1 −3 1 −1 −3 −1 3 −3 3 −3 −1 −1 24 −1 −3 −3 −3 1 −1 1 1 −3 −1 1 −1 25 −1 −3 −1 1 1 3 −1 1 −1 −3 3 −1 26 −1 3 3 1 −3 −3 −1 1 1 −1 1 −1 27 −1 3 1 −1 −3 −3 −3 −1 3 −3 −3 −1 28 −1 −3 1 1 1 1 3 1 −1 1 −3 −1 29 −1 3 −3 3 −1 3 3 −3 3 3 −1 −1 and wherein, if the length of the base sequence x u (n) is 24, at least one of the sets of values provided in the below table is used as the set of values for the phase parameter p(n): Seq. index(u) p(0), . . . , p(23) 0 −1 3 3 3 −3 1 3 −3 −1 −3 −1 1 −3 3 −1 3 1 1 −1 −3 3 −1 −1 −1 1 −1 1 3 −3 3 −1 3 −1 1 −1 −3 −1 3 −3 −1 −3 −3 −3 −3 −1 −1 3 1 −1 2 −1 3 1 −1 −3 1 −3 3 1 1 −1 −3 −1 1 −3 −1 1 1 1 3 −3 −1 −1 −1 3 −1 −3 3 3 −3 1 −1 −1 3 3 −3 −3 1 3 3 −1 3 −3 −1 −1 −1 −1 1 −1 4 −1 −1 −3 −1 3 −3 −3 −1 3 −3 3 1 1 −3 −3 −3 −3 1 −1 −3 1 −1 −1 −1 5 −1 1 −3 −3 −1 −1 1 −1 −3 −3 −3 3 1 −3 1 3 1 −3 3 −3 −1 −3 −3 −1 6 −1 1 1 3 −3 −1 1 −1 −1 −1 3 1 −1 1 −3 1 3 −3 3 1 −3 1 1 −1 7 −1 1 1 −3 −3 −3 −3 −3 −3 −1 3 3 −1 −1 −3 1 −3 1 −3 1 1 −3 3 −1 8 −1 −1 3 3 −1 3 1 −3 −3 1 −3 −1 3 −1 −1 −1 −3 1 1 −1 −3 −3 −3 −1 9 −1 −3 3 −1 −1 −1 −1 1 1 −3 3 1 3 3 1 −1 1 −3 1 −3 1 1 −3 −1 10 −1 −3 −1 −3 −1 −3 −3 1 1 3 1 3 −1 −1 3 1 1 −3 −3 −1 3 3 −1 −1 11 −1 −3 3 −3 −3 −3 −1 −1 −3 −1 −3 3 1 3 −3 −1 3 −1 1 −1 3 −3 1 −1 12 −1 −1 1 −3 1 3 −3 1 −1 −3 −1 3 1 3 1 −1 −3 −3 −1 −1 −3 −3 −3 −1 13 −1 −3 −1 −1 3 1 3 1 −3 −3 −1 −3 −3 −3 −1 3 3 −1 −1 −3 1 3 −1 −1 14 −1 1 −1 −1 3 −3 3 −3 1 1 −1 1 1 1 −1 3 3 −1 −1 1 −3 3 −1 −1 15 −1 1 −3 −3 −3 1 1 −3 1 1 −1 −1 3 −1 −3 1 −1 −1 1 1 3 1 −3 −1 16 −1 −1 −3 3 −1 −1 −1 3 1 −3 1 1 3 −3 1 −3 −1 −1 −1 3 −3 3 −3 −1 17 −1 1 −3 −1 −3 1 3 −3 3 −3 −3 −3 1 −1 3 −1 −3 −1 −1 −3 −3 1 1 −1 18 −1 3 1 −3 −3 −3 −3 1 −1 1 1 1 −3 −1 1 1 3 −1 −1 3 −1 1 −3 −1 19 −1 1 −3 −1 −1 1 −3 −1 −3 −1 1 1 1 1 3 1 −1 −3 −3 3 −1 3 1 −1 20 −1 1 3 −1 −1 1 −1 −3 −1 −1 1 1 1 −3 3 1 −1 −1 −3 3 −3 −1 3 −1 21 −1 −3 1 1 3 −3 1 1 −3 −1 −1 1 3 1 3 1 −1 3 1 1 −3 −1 −3 −1 22 −1 −1 3 3 3 −3 −3 3 3 −1 3 −1 −1 −1 −1 3 −3 1 −1 3 −1 −1 3 −1
Assignees
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Classifications
Arrangements for wireless physical layer control (H04B7/2612 takes precedence) · CPC title
Code shifting or hopping · CPC title
Zadoff-Chu · CPC title
Cyclic extensions · CPC title
- H04L27/26134Primary
Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain · CPC title
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- What does patent US2022158809A1 cover?
- A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.
- Who is the assignee on this patent?
- Optis Cellular Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification H04L27/26134. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 19 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).