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Reference signal transmission method, equipment and system after transmitting antenna extending

A technology for transmitting antennas and reference signals, which is applied in the field of communication, can solve the problems of large system changes, increase the system overhead of reference signals, etc., and achieve the effect of controlling system overhead

Active Publication Date: 2009-09-30
HONOR DEVICE CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0007] On the one hand, it is necessary to design the reference signal RS sequence of the newly added 4 antenna ports, which greatly changes the original system; on the other hand, it will increase the system overhead of the reference signal

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  • Reference signal transmission method, equipment and system after transmitting antenna extending
  • Reference signal transmission method, equipment and system after transmitting antenna extending
  • Reference signal transmission method, equipment and system after transmitting antenna extending

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Embodiment Construction

[0023] In order to make the purpose, technical solution, and advantages of the present invention clearer, the technical solution provided by the present invention will be further described in detail below with reference to the accompanying drawings and examples. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] see figure 1 , a method for sending a reference signal provided in an embodiment of the present invention, including:

[0025] Step 11, grouping the extended transmitting antennas, and each group includes two transmitting antenna ports;

[0026] Step 12, within two adjacent reference signal periods 2T, the reference signals sent by the two transmitting antenna ports in each group in the fir...

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Abstract

The embodiment of the invention discloses a reference signal transmission method, equipment and system after transmitting antenna extending, and can control system cost of reference signal simultaneously changing minimum of original system. The method of the embodiment comprises: grouping the extended transmitting antenna, each group comprising two transmitting antenna ports; the two transmitting antenna ports of each group transmitting reference signal [a*s1, b*s1*e [jw]] in the first period T; and transmitting reference signal [a*s2, -b*s2*e[jw]] during the second period T. The technical scheme of the embodiment can be used in design for LTE Advanced system transmitting antenna.

Description

[0001] This application claims the priority of the Chinese application filed on January 23, 2009 with the application number 200910001154.1 and the title of the invention as "a reference signal transmission method, device and system after transmitting antenna extension", the entire content of which is incorporated by reference incorporated in this application. technical field [0002] The present invention relates to the field of communication technology, in particular to a method, device and system for transmitting a reference signal after transmitting antenna extension. Background technique [0003] In the communication system, the main function of the reference signal is to help the receiving end obtain the channel estimation value h of each antenna port i，j (h i，j Indicates the channel estimate between the j-th transmit antenna and the i-th receive antenna). In addition, the reference signal is also used by the receiving end to perform various measurements, such as cha...

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Application Information

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IPC IPC(8): H04B7/06H04B7/08
CPCH04B7/06H04L25/0226
Inventor 武雨春
Owner HONOR DEVICE CO LTD
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