Random access channel (rach) response (rar) reception in an unlicensed radio frequency (rf) spectrum band
US-2024073955-A1 · Feb 29, 2024 · US
Configurable random access channel structure for range extension in a wireless communication system
US8964649B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8964649-B2 |
| Application number | US-201414184565-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 19, 2014 |
| Priority date | Mar 20, 2007 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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The present invention provides a method involving a configurable random access channel structure. One embodiment of the method includes generating a random access channel burst that includes a cyclic prefix and a selected number of repetitions of a preamble. The number of repetitions is selected based on at least one of a cell radius and a radio transmission frequency. This embodiment of the method also includes transmitting the random access channel burst over an air interface.
First claim
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What is claimed is: 1. A method, comprising: generating, at user equipment in a cell, a random access channel burst comprising a cyclic prefix, a preamble, and a number of repetitions of the preamble, wherein the cyclic prefix has a predetermined duration that is independent of the number of repetitions of the preamble, and wherein the number of repetitions of the preamble is indicated in a broadcast message that was received by the user equipment, and wherein any user equipment i…
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- What does patent US8964649B2 cover?
- The present invention provides a method involving a configurable random access channel structure. One embodiment of the method includes generating a random access channel burst that includes a cyclic prefix and a selected number of repetitions of a preamble. The number of repetitions is selected based on at least one of a cell radius and a radio transmission frequency. This embodiment of the me…
- Who is the assignee on this patent?
- Alcatel Lucent Usa Inc, Alcatel Lucent
- What technology area does this patent fall under?
- Primary CPC classification H04W74/00. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).