Method and system for adjusting physical transmission rate

A technology of physical transmission and rate adjustment, applied in the field of communication, can solve problems affecting UE communication rate, difficult to meet, MCS does not comply with scheduling, etc.

Active Publication Date: 2021-06-04
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

However, since the CQI is reported periodically, there will be a deviation between the reported CQI and the actual scheduling situation, resulting in the selected MCS not conforming to the current scheduling, and the spectrum utilization rate is low, which in turn affects the communication rate of the UE, making it difficult to meet wide-spread requirements. Under domain coverage, users can obtain 100Mbps user experience rate requirements anytime and anywhere

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  • Method and system for adjusting physical transmission rate
  • Method and system for adjusting physical transmission rate
  • Method and system for adjusting physical transmission rate

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Embodiment Construction

[0100] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0101] One of the core concepts of the embodiments of the present invention is to select the target neighboring cell with the strongest reference signal received power, and configure the channel state information reference signal CSI-RS information and channel state information that meet the periodic offset configuration in the target neighboring cell Interference measurement of CSI-IM information to ensure that the CSI-IM sent by the serving cell on odd periods is not interfered by neighboring cells, and the CSI-IM sent by the serving cell on even periods must be interfered; thus making the channel quality indication reported by the edge user equipment UE The improved CQI accuracy makes the MCS used by users more match the actual ...

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Abstract

The embodiment of the invention provides a method and system for adjusting a physical transmission rate. The method comprises the following steps of: selecting a target neighbor cell according to report information of UE; by the target neighbor cell, generating second channel state information (CSI) according to the first CSI preset by a serving cell; by the UE, determining a channel quality indication signal (CQI) according to the first CSI and the second CSI; by the serving cell, determining a conflict proportion according to the resource occupation information of the target neighbor cell and the resource occupation information of the UE; and calculating an equivalent CQI according to the CQI reported by the UE and the conflict proportion, and determining a modulation coding scheme (MCS) corresponding to the equivalent CQI to adjust the physical transmission rate of the UE. More accurate CQI reference information is obtained in a target neighbor cell cooperation mode, so that the MCS of a channel is more matched with an actual channel, and the spectrum efficiency of an edge user terminal and the user experience rate are improved.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method and system for adjusting a physical transmission rate. Background technique [0002] Compared with previous communication technologies, 5G NR needs to meet more diverse scenarios and extreme performance challenges. Continuous wide coverage is the most basic coverage method for mobile communications. Regardless of whether it is stationary or moving at high speed, covering the center or the edge of coverage, users can obtain an experience rate of more than 100Mbps anytime and anywhere. [0003] Ultra-dense networking can achieve higher frequency reuse efficiency through more intensive wireless network infrastructure deployment, thereby achieving a hundred-fold increase in system capacity in local hotspot areas. However, with the denser deployment of cells and the overlapping of coverage areas, serious interference problems have been brought about, resulting...

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Application Information

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IPC IPC(8): H04W28/22H04L1/00
CPCH04W28/22H04L1/0003H04L1/0009H04L1/0002
Inventor 杨新玲江世宇张敏
Owner DATANG MOBILE COMM EQUIP CO LTD
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