Rach conveyance of dl synchronization beam information for various dl-ul correspondence states
US-2018049167-A1 · Feb 15, 2018 · US
Asymmetrical forward/reverse transmission bandwidth
US9130649B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130649-B2 |
| Application number | US-201414556377-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 1, 2014 |
| Priority date | Feb 10, 2000 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requires a base station and a subscriber unit to have two pseudo-random code generators which can be clocked separately. Alignment of the uplink and downlink pseudo-random spreading codes is achieved by truncating the code sequence for the lower speed link at the conclusion of a complete code sequence for the higher speed link.
First claim
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What is claimed is: 1. An apparatus for wireless communication in a code division multiple access (CDMA) system, comprising: a first pseudo-random sequence circuit to provide a first pseudo-random code sequence, a second pseudo-random sequence circuit to provide a second pseudo-random code sequence, wherein the second pseudo-random code sequence is longer than the first pseudo-random code sequence; and a combiner to combine output values associated with the first pseudo-random…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9130649B2 cover?
- A wireless communications system employs code-division multiple access information transmission techniques where the uplink and downlink transmission bandwidths are unequal. The higher bandwidth is an integer multiple of the lower bandwidth. The present system requires a base station and a subscriber unit to have two pseudo-random code generators which can be clocked separately. Alignment of th…
- Who is the assignee on this patent?
- Signal Trust For Wireless Innovation
- What technology area does this patent fall under?
- Primary CPC classification H04B7/2668. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 08 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).