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Method and device for notifying reference signal configuration information

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 restrictions and CRS collisions, and achieve the effects of high multiplexing factor, reduced overhead, and long cycle

Active Publication Date: 2015-03-25
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 and device for notifying reference signal configuration information
  • Method and device for notifying reference signal configuration information

Examples

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

The embodiment of the invention discloses a method and device for notifying reference signal configuration information, and belongs to the field of communication. The method includes the following steps of according to CSI-RS configuration information, coding the CSI-RS configuration information and obtaining a CSI-RS configuration information code; storing the mapping relation between the CSI-RS configuration information code and the CSI-RS configuration information, and sending the mapping relation to UE for storage; searching the stored mapping relation between the CSI-RS configuration information code and the CSI-RS configuration information for a CSI-RS configuration information code corresponding to the CSI-RS configuration information to be notified; sending the found 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 mapping relation, between the CSI-RS configuration information code and the CSI-RS configuration information, stored by the UE. According to the method and device for notifying reference signal configuration information, 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, and therefore cost is reduced, and it can be guaranteed that no mutual conflict of CSI-RSs of more cells exists.

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) of 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 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 performs offset by binding the pilot pattern of the downlink CRS with the cell identity through the implicit mapping In the (shift) operation mode, the pilot pattern is notified to the UE. In addition, the number of CRS port...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04W68/00
Inventor 大卫·马萨莱塞夏媛夏亮
Owner HUAWEI TECH CO LTD
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