Method for notifying reference signal configuration information and device thereof

A technology for configuring information and reference signals, which is applied in the field of notifying reference signal configuration information, can solve problems such as CRS collisions and restrictions, and achieve the effects of reducing overhead, high multiplexing factor, and low overhead

Active Publication Date: 2012-02-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the existing technology only notifies the UE of the CRS configuration information, through the implicit mapping method of binding the pilot pattern and the cell ID, the number of downlink channels of different cells that the UE can distinguish will be limited by the number of cell IDs, and In a CoMP (Coordinated Multipoint Processing, Coordinated Multipoint Processing) system, the CRSs in a CoMP measurement set (including multiple possible CoMP cooperative cells) are likely to collide with each other

Method used

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  • Method for notifying reference signal configuration information and device thereof
  • Method for notifying reference signal configuration information and device thereof
  • Method for notifying reference signal configuration information and device thereof

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Experimental program
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Embodiment 1

[0035] see figure 1 , this embodiment provides a method for notifying reference signal configuration information, and the method flow is as follows:

[0036] 101: Encode the CSI-RS configuration information according to the CSI-RS configuration information to obtain CSI-RS configuration information encoding, where the CSI-RS configuration information includes at least the number of ports, pilot patterns, pilot periods, and subframe offsets;

[0037] 102: Store the mapping relationship between the CSI-RS configuration information code and the CSI-RS configuration information, and send the mapping relationship between the CSI-RS configuration information code and the CSI-RS configuration information to the user equipment UE for storage;

[0038] 103: Determine the CSI-RS configuration information to be notified, and search for the CSI-RS configuration information code corresponding to the CSI-RS configuration information to be notified in the mapping relationship between the sto...

Embodiment 2

[0042] This embodiment provides a method for notifying reference signal configuration information. Since CSI-RS has the characteristics of small overhead, long period, high multiplexing factor, and high-port pilot patterns nested with low-port pilot patterns, this implementation For example, by encoding the CSI-RS configuration information and notifying the UE of the CSI-RS configuration information in the form of CSI-RS configuration information encoding, the UE can determine the CSI-RS configuration information, thereby reducing overhead and ensuring more cells The purpose of CSI-RS not to collide with each other.

[0043] Wherein, the device notifying the reference signal configuration information is the network device, and the CSI-RS configuration information includes but not limited to the number of ports, pilot pattern, pilot period and subframe offset.

[0044]If the CSI-RS of a certain cell collides with the data symbols sent by the strongly interfering cell, the netwo...

Embodiment 3

[0123] see Figure 7 , this embodiment provides a device for notifying reference signal configuration information, and the device includes:

[0124] The encoding module 701 is configured to encode the CSI-RS configuration information according to the channel state information-reference signal CSI-RS configuration information, to obtain the CSI-RS configuration information encoding, and the CSI-RS configuration information includes at least the number of ports, pilot patterns, pilot frequency period and subframe offset;

[0125] The storage module 702 is configured to store the mapping relationship between the encoding of the CSI-RS configuration information obtained by the encoding module 701 and the CSI-RS configuration information;

[0126] The first sending module 703 is configured to send the mapping relationship between the CSI-RS configuration information code and the CSI-RS configuration information stored in the storage module 702 to the user equipment UE for storage;...

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Abstract

An embodiment of the invention discloses a method for notifying reference signal configuration information and a device thereof, belonging to the communication field. The method comprises the following steps: according to CSI-RS configuration information, coding the CSI-RS configuration information and obtaining a CSI-RS configuration information code; storing a mapping relation of the CSI-RS configuration information code and the CSI-RS configuration information, and sending the mapping relation to UE for storage; searching a CSI-RS configuration information code corresponding to the CSI-RS configuration information to be notified in the mapping relation; sending the searched CSI-RS configuration information code to the UE to determine the CSI-RS configuration information according to the received CSI-RS configuration information code and the stored mapping relation. According to the embodiment in the invention, the CSI-RS configuration information is notified to the UE through a form of the CSI-RS configuration information code, the UE determines the CSI-RS configuration information according to the CSI-RS configuration information code, cost is reduced, and no mutual conflict of CSI-RSs of cells is ensured.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and equipment for notifying reference signal configuration information. Background technique [0002] In a wireless communication system, the network device needs to notify the terminal UE (User Equipment, User Equipment) in the coverage area of ​​the reference signal configuration information, so that the UE can perform downlink channel estimation according to the reference signal configuration information, thereby improving the system bit error performance. [0003] The prior art discloses a method of notifying the UE of CRS (Common Reference Signal, common reference signal) configuration information. During specific implementation, the network device offsets the (shift) operation, the pilot pattern is notified to the UE, and in addition, the number of CRS ports is implicitly notified to the UE through SIB (System Information Block, system information block) signaling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W68/00
CPCH04L5/0051H04L5/0094H04W72/23H04L5/0035H04W72/04H04L5/0048H04L27/2601H04W88/08
Inventor 大卫·马萨莱塞夏媛夏亮
Owner HUAWEI TECH CO LTD
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