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Network-assisted interference deletion and suppression and its control method and device

An interference cancellation and network-assisted technology, applied in the communication field, can solve problems such as reducing UE processing complexity

Active Publication Date: 2019-05-14
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The embodiment of the present invention provides a network-assisted interference cancellation and suppression NAICS and its control method and device, which are used to reduce the Processing complexity when UE performs NAICS

Method used

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  • Network-assisted interference deletion and suppression and its control method and device
  • Network-assisted interference deletion and suppression and its control method and device
  • Network-assisted interference deletion and suppression and its control method and device

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Embodiment Construction

[0086] The embodiment of the present invention provides a network-assisted interference cancellation and suppression NAICS and its control method and device, which are used to reduce the Processing complexity when UE performs NAICS.

[0087] For the scenario where CA and NAICS are combined, there are two easy-to-think solutions such as:

[0088] Solution 1: Regardless of the NAICS capability of the UE, the network side sends the high-level signaling required by NAICS to all CCs that the UE can support. The UE selects a corresponding CC to perform NAICS according to its own NAICS capability. That is to say, the network side does not need to know which CC has performed the NAICS.

[0089] Wherein, the NAICS capability of the UE specifically refers to the number of CCs or bands that the UE can support when performing NAICS.

[0090] In this solution, high-level signaling is also delivered to CCs that cannot perform NAICS, which will cause waste of high-level signaling overhead...

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Abstract

The invention discloses a network-assisted interference cancellation and suppression NAICS and its control method and device, which are used to reduce the UE's performance in CA scenarios without excessive high-level signaling overhead and without wasting the UE's carrier aggregation capability. Processing complexity in NAICS. The NAICS method includes: the user equipment UE receives an interference cancellation indication message sent by the base station, which includes the identity of the component carrier targeted by the UE when performing NAICS, and the component carrier belongs to the component carrier that performs carrier aggregation transmission on the UE; The UE performs NAICS on the component carrier according to the interference cancellation indication message.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a Network Assisted Interference Cancellation and Suppression (NAICS) and its control method and device. Background technique [0002] With the rapid development of wireless communication technology, in the version 12 (R12) of the third generation partnership project (3rd Generation Partnership Project, 3GPP), the network assisted interference cancellation and suppression (Network Assisted Interference Cancellation and Suppression, hereinafter referred to as NAICS) technology is proposed. The principle is that the user equipment (User Equipment, UE) is equipped with an advanced receiver, and uses the interference cancellation information notified by the network side, combined with its own blind detection, to effectively delete the interference and improve the reception performance. [0003] The advanced receiver has a linear enhanced linear minimum mean square err...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04L5/00H04W72/54
CPCH04L65/1016H04L65/80H04L65/40H04W72/541H04W72/542H04B1/10H04W8/24H04W24/08H04W24/10
Inventor 金婧童辉王飞王启星胡臻平
Owner CHINA MOBILE COMM GRP CO LTD