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Method and device for sending channel measurement pilot frequency information

A channel measurement pilot and information transmission technology, applied in the field of communication, to achieve the effect of ensuring reliability and universality, small signaling overhead, and meeting the requirements of channel measurement

Inactive Publication Date: 2011-10-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no corresponding solution to this problem in the prior art

Method used

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  • Method and device for sending channel measurement pilot frequency information
  • Method and device for sending channel measurement pilot frequency information
  • Method and device for sending channel measurement pilot frequency information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] image 3 A flow chart of a method for sending measurement pilot information according to an embodiment of the present invention is shown, as shown in image 3 As shown, the method includes the following steps S302 to S304:

[0055] Step S302, the network side carries channel measurement pilot information in the system information of the cell;

[0056] Wherein, the channel measurement pilot information at least includes the following information of other cells in the long-term coordination set: channel measurement pilot transmission cycle, channel measurement pilot port number;

[0057] The channel measurement pilot information may also include channel measurement pilot transmission location information, and the channel measurement pilot transmission location information may be a location parameter or an offset.

[0058] In step S304, the terminal obtains channel measurement pilot information from system information, and does not send data at corresponding positions wh...

example 1

[0065] Figure 4 It is a schematic diagram of carrying long-term cooperative collective channel measurement pilot related parameters in the MIB according to an embodiment of the present invention, as shown in Figure 4 As shown, the sending period of the channel measurement pilot and the parameters of the offset of the channel measurement pilot may be carried on the MIB of the system information and sent.

[0066] The system information will use 1 bit to indicate the transmission period of the channel measurement pilot. When the bit is "0", it means that the channel measurement pilot is sent at a period of 5 ms. When the bit is "1", it means that the channel measurement pilot is sent in 5 ms. 10ms is sent periodically.

[0067] The system information will use 3 bits to indicate the position parameter of the channel measurement pilot, as shown in the following table:

[0068] bit

CSI-RS transmission location

000

Sent on subframe 9, the offset of CSI...

example 2

[0073] Figure 5 It is a schematic diagram of bearing relevant parameters of long-term coordinated collective channel measurement pilots in SIBs according to an embodiment of the present invention, as shown in Figure 5 As shown, the parameters of the sending cycle of the channel measurement pilot and / or the offset of the channel measurement pilot may be carried on the SIB1 of the system information, and may also be extended to other SIBs or newly designed SIBs for transmission.

[0074] The system information will use 2 bits to indicate the transmission period of the channel measurement pilot. When the bit is "00", it means that the channel measurement pilot is sent at a period of 5 ms. When the bit is "01", it means that the channel measurement pilot is sent in 5 ms. 10ms is the period of sending, when the bit is "10", it means that the channel measurement pilot is sent at a period of 15ms, and when the bit is "11", it means that the channel measurement pilot is sent at a pe...

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PUM

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Abstract

The invention discloses a method and device for sending channel measurement pilot frequency information, wherein the method comprises: a network side sends channel measurement pilot frequency information of other cells in a long-time cooperation set to a terminal, wherein the channel measurement pilot frequency information at least comprises the channel measurement pilot frequency sending periods and channel measurement pilot frequency port numbers of the other cells in the long-time cooperation set. The terminal can acquire the channel measurement pilot frequency information of the other cells in the long-time cooperation set from the network side but not send data at corresponding positions at which the channel measurement pilot frequency of the other cells are sent.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, to a method and device for sending channel measurement pilot information. Background technique [0002] The LTE-A system will support Coordinated Multiple Point Transmission and Reception (COMP for short), and in the 3rd Generation Partnership Project (3GPP for short) Long-Term Evolution (LTE for short) In the 56th meeting, two kinds of pilots of LTE-A (Long Term Evolution-Advanced, advanced long-term evolution) system have been defined: channel measurement pilot (hereinafter referred to as CSI-RS) and demodulation pilot (hereinafter referred to as DMRS) ). The channel measurement pilot not only needs to support multi-antenna channel measurement in the local cell, but also needs to support CoMP measurement between cells. In order to improve CoMP measurement between cells, many companies propose that when a cell in the coordination set sends a channel measurement pilot, o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W68/00H04L27/26
CPCH04W72/1289H04W48/12H04W72/085H04W72/542H04W72/23
Inventor 姜静王斌李儒岳
Owner ZTE CORP
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