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Interference measuring method, network side equipment and terminal equipment

一种干扰测量、网络侧的技术，应用在无线通信领域，能够解决无法测量干扰信息、不能很好地用干扰消除/抑制、不能很好的体现数据传输时隙真实干扰等问题

Active Publication Date: 2014-10-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although in the LTE-A11 stage, the Channel State Information Interference Measurement (CSI-IM) signal was specially introduced in order to improve the CQI measurement performance, but since the signal is not sent every frame, it cannot perform well Reflects the real interference of the data transmission time slot (subframe), and cannot measure the interference information of each layer, so it cannot be well used for interference elimination / suppression during data / control channel demodulation at the receiving side (IC / IS: Interference Cancellation / Interference Suppression)

Method used

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  • Interference measuring method, network side equipment and terminal equipment
  • Interference measuring method, network side equipment and terminal equipment
  • Interference measuring method, network side equipment and terminal equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0247] The network side sends the indication information of the interference measurement mode to the target user through high-level signaling and / or physical layer dynamic signaling. Specifically:

[0248] The network side sends the indication information of the interference measurement method to the target user through M-bit physical layer dynamic signaling. The interference measurement method includes: interference measurement through orthogonal DMRS ports; interference measurement through pseudo-orthogonal DMRS ports; The designated RE performs interference measurement; the traditional reference signal interference measurement method or the interference measurement according to "power reduction". Among them, the "power minus" interference measurement method is to use the total received signal minus the useful signal to measure the interference, namely r Or use the total received signal power to subtract the received power of the useful signal. .

[0249] For example, when M=1...

Embodiment 2

[0259] The network side sends parameter configuration information for interference measurement to the target user through high-layer signaling and / or physical layer dynamic signaling, where the parameter configuration information for interference measurement is DMRS initialization parameters for interference measurement. Specifically:

[0260] The network side configures N sets of DMRS initialization parameters for interference measurement through the higher layer, and instructs the target user to use one set of the N sets of parameters for current interference measurement through the physical layer dynamic signaling. Among them, the DMRS initialization parameter used for interference measurement is the DMRS initialization parameter of the interference signal, including the scrambling code ID related to the DMRS sequence used for interference measurement, the cell ID related to the DMRS sequence, and the subframe / time of the DMRS used for interference measurement. At least one of...

Embodiment 3

[0264] The network side sends parameter configuration information for interference measurement to the target user through high-level signaling and / or physical layer dynamic signaling, where the parameter configuration information for interference measurement is the DMRS port used for interference measurement and the corresponding initialization of the port Parameter information, where the initialization parameters used for interference measurement are independently configured for each port. Specifically:

[0265] The network side configures N sets of DMRS ports used for interference measurement and initialization parameters corresponding to the ports through the higher layer, and instructs the use of one set of the N sets of parameters for current interference measurement through physical layer dynamic signaling. Among them, the DMRS initialization parameter used for interference measurement is the DMRS initialization parameter of the interference signal, including the scrambling...

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Abstract

The invention discloses an interference measuring method, network side equipment and terminal equipment. The method comprises steps: the network side sends interference measuring instruction information to a target terminal, the target terminal is instructed to carry out interference measurement, and the interference measuring instruction information is used for instructing one or more selected from the following pieces of information to the target terminal: (1) an interference measuring mode adopted by interference measurement; and (2) parameter configuration information for interference measurement. With the help of network signaling, the interference measuring effects on a data channel and a control channel are improved, interference elimination / interference suppression effects of a receiver are improved, and the communication quality in the condition of increased network capacity can be ensured.

Description

Technical field [0001] The present invention relates to wireless communication technology, in particular to an interference measurement method, network side equipment and terminal equipment. Background technique [0002] In order to achieve higher spectrum efficiency, the density of cell deployment is getting higher and higher, and user interference in the same cell and co-channel interference between cells are increasingly becoming the main factors limiting network capacity. figure 1 with figure 2 . [0003] In the current research, it is mainly based on the interference avoidance and coordination technology on the network side. The basic idea is to realize the avoidance of interference on the transmitting side through precoding and coordinated scheduling on the network side. However, the interference cooperation based on the sender largely depends on the accuracy of the channel state information (CSI) fed back. According to relevant research data, the use of advanced receiving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W24/10
CPCH04W72/00H04W24/10H04W24/04H04B7/024H04B7/0456H04L5/005H04L5/0092H04B17/345H04L5/00
Inventor 弓宇宏孙云锋张峻峰
Owner ZTE CORP
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