Method, apparatus, and system for correcting channel of remote radio unit
US-2016197745-A1 · Jul 7, 2016 · US
Joint channel correction method, related apparatus, and system
US10320464B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10320464-B2 |
| Application number | US-201715858983-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 29, 2017 |
| Priority date | Jun 30, 2015 |
| Publication date | Jun 11, 2019 |
| Grant date | Jun 11, 2019 |
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Abstract
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A joint channel correction method, an apparatus, and a system are disclosed. The joint channel correction method includes: sending a first joint channel correction instruction to a first RRU; sending a second joint channel correction instruction to a second RRU; receiving a result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in X2 traffic channels; receiving a result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in X1 traffic channels; and obtaining correction compensation coefficients of the X1 traffic channels and/or the X2 traffic channels through calculation. Technical solutions provided by embodiments of the present application help implement channel correction between RRUs without a channel self-correction function.
First claim
Opening claim text (preview).
What is claimed is: 1. A joint channel correction method, comprising: sending, by a transceiver of a joint channel correction apparatus, a first joint channel correction instruction to a first remote radio unit (RRU) for triggering the first RRU to send a first correction reference signal through X1 transmit channels in X1 traffic channels of the first RRU; sending, by the transceiver of the joint channel correction apparatus, a second joint channel correction instruction to a second RRU for triggering the second RRU to send a second correction reference signal through X2 transmit channels in X2 traffic channels of the second RRU; receiving, by the transceiver of the joint channel correction apparatus, a result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in the X2 traffic channels, and receiving a result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in the X1 traffic channels; and obtaining, by a processor of the joint channel correction apparatus, correction compensation coefficients of the X1 traffic channels or the X2 traffic channels through calculation according to the first correction reference signal, the result about reception of the first correction reference signal through the X2 receive channels, the second correction reference signal, and the result about reception of the second correction reference signal through the X1 receive channels, wherein X1 and X2 are integers greater than 1. 2. The method according to claim 1 , wherein: sending the first joint channel correction instruction to the first remote radio unit (RRU) comprises: sending, by a baseband unit (BBU), the first joint channel correction instruction to the first remote radio unit; sending the second joint channel correction instruction to the second RRU comprises: sending, by the BBU, the second joint channel correction instruction to the second RRU; receiving the result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in the X2 traffic channels, and receiving the result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in the X1 traffic channels comprises: receiving, by the BBU, the result sent by the second RRU about reception of the first correction reference signal through the X2 receive channels in the X2 traffic channels, and receiving the result sent by the first RRU about reception of the second correction reference signal through the X1 receive channels in the X1 traffic channels; and obtaining correction compensation coefficients of the X1 traffic channels or the X2 traffic channels through calculation according to the first correction reference signal, the result about reception of the first correction reference signal through the X2 receive channels, the second correction reference signal, and the result about reception of the second correction reference signal through the X1 receive channels comprises: obtaining, by the BBU, the correction compensation coefficients of the X1 traffic channels or the X2 traffic channels through calculation according to the first correction reference signal, the result about reception of the first correction reference signal through the X2 receive channels, the second correction reference signal, and the result about reception of the second correction reference signal through the X1 receive channels. 3. The method according to claim 1 , wherein: sending the first joint channel correction instruction to the first remote radio unit (RRU) comprises: sending, by a switching device, the first joint channel correction instruction to the first remote radio unit; sending the second joint channel correction instruction to the second RRU comprises: sending, by the switching device, the second joint channel correction instruction to the second RRU; receiving the result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in the X2 traffic channels, and receiving the result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in the X1 traffic channels comprises: receiving, by the switching device, the result sent by the second RRU about reception of the first correction reference signal through the X2 receive channels in the X2 traffic channels, and receiving the result sent by the first RRU about reception of the second correction reference signal through the X1 receive channels in the X1 traffic channels; and obtaining correction compensation coefficients of the X1 traffic channels or the X2 traffic channels through calculation according to the first correction reference signal, the result about reception of the first correction reference signal through the X2 receive channels, the second correction reference signal, and the result about reception of the second correction reference signal through the X1 receive channels comprises: obtaining, by a baseband unit (BBU), the correction compensation coefficients of the X1 traffic channels or the X2 traffic channels through calculation according to the first correction reference signal, the result about reception of the first correction reference signal through the X2 receive channels, the second correction reference signal, and the result about reception of the second correction reference signal through the X1 receive channels. 4. The method according to claim 1 , wherein: sending the first joint channel correction instruction to the first remote radio unit (RRU) comprises: sending, by a baseband unit (BBU), the first joint channel correction instruction to the first remote radio unit; sending the second joint channel correction instruction to the second RRU comprises: sending, by the BBU, the second joint channel correction instruction to the second RRU; receiving the result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in the X2 traffic channels, and receiving the result sent by the first RRU about reception of the second correction reference signal through X1 receive channels in the X1 traffic channels comprises: receiving, by the BBU, the result sent by the second RRU about reception of the first correction reference signal through the X2 receive channels in the X2 traffic channels, and receiving the result sent by the first RRU about reception of the second correction reference signal through the X1 receive channels in the X1 traffic channels; and obtaining correction compensation coefficients of the X1 traffic channels or the X2 traffic channels through calculation according to the first correction reference signal, the result about reception of the first correction reference signal through the X2 receive channels, the second correction reference signal, and the result about reception of the second correction reference signal through the X1 receive channels comprises: obtaining, by a remote management device, the correction compensation coefficients of the X1 traffic channels or the X2 traffic channels through calculation according to the first correction reference signal, the result about reception of the first correction reference signal through the X2 receive channels, the second correction reference signal, and the result about reception of the second correction reference signal through the X1 receive channels. 5. The method according to claim 1 , wherein: sending the first joint channel correction instruction to the first remote radio unit (RRU) comprises: sending, by a switching device, the first joint channel correction instruction to the first remote radio unit; sending the second joint channel correct
Assignees
Inventors
Classifications
using sounding signals · CPC title
of multiple channels · CPC title
based on interference · CPC title
- H04B7/0617Primary
for beam forming · CPC title
for calibration; for correcting measurements · CPC title
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Frequently asked questions
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- What does patent US10320464B2 cover?
- A joint channel correction method, an apparatus, and a system are disclosed. The joint channel correction method includes: sending a first joint channel correction instruction to a first RRU; sending a second joint channel correction instruction to a second RRU; receiving a result sent by the second RRU about reception of the first correction reference signal through X2 receive channels in X2 t…
- Who is the assignee on this patent?
- Huawei Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H04B7/0617. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 11 2019 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).