Method and apparatus for controlling transmit power in wireless communication system
US-9807697-B2 · Oct 31, 2017 · US
Controlling uplink multi-antenna transmissions in a telecommunication system
US8942275B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8942275-B2 |
| Application number | US-201213505768-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 13, 2012 |
| Priority date | Apr 29, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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The disclosure relates to controlling uplink transmissions according to closed loop techniques such as closed loop uplink transmit diversity and uplink multiple-input multiple-output (MIMO). An exemplary method for use in a user equipment ( 61 ) configured for multi-antenna transmissions comprises a step of receiving ( 62 ), in a downlink channel, pre-coding vector information indicating a pre-coding vector for uplink transmission. The method further comprises a step of determining ( 63 ) whether the pre-coding vector indicated by the received pre-coding vector information is reliable or unreliable and steps of applying ( 64 ) the pre-coding vector indicated by the received pre-coding vector information for uplink transmission only if the pre-coding vector is determined to be reliable and applying ( 66 ) a pre-determined pre-coding vector when the pre-coding vector indicated by the received pre-coding vector information is determined to be unreliable.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for use in a user equipment in a telecommunication system, the user equipment configured for multi-antenna transmissions, the method comprising: receiving, in a downlink channel, pre-coding vector information indicating a pre-coding vector for uplink transmission; determining whether the pre-coding vector indicated by the received pre-coding vector information is reliable or unreliable; applying the pre-coding vector indicated by the recei…
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Classifications
- H04B7/0652Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8942275B2 cover?
- The disclosure relates to controlling uplink transmissions according to closed loop techniques such as closed loop uplink transmit diversity and uplink multiple-input multiple-output (MIMO). An exemplary method for use in a user equipment ( 61 ) configured for multi-antenna transmissions comprises a step of receiving ( 62 ), in a downlink channel, pre-coding vector information indicating a pre-…
- Who is the assignee on this patent?
- Bergman Johan, Hultell Johan, Ericsson Telefon Ab L M
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0652. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 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).