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A method and device for adjusting modulation and coding mode mcs

A technology of modulation and coding mode and interval adjustment, which is applied in the electronic field, can solve the problems of increasing resource occupation of the cell, achieve the effects of reducing the duration of resource occupation, improving perception and average throughput of the cell, and reducing user data retransmission

Active Publication Date: 2021-10-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a method and device for adjusting the modulation and coding mode MCS, which is used to solve the technical problem of balancing the BLER target value and MCS in the prior art, resulting in data retransmission process, and increasing the occupation of cell resources

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  • A method and device for adjusting modulation and coding mode mcs
  • A method and device for adjusting modulation and coding mode mcs

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Embodiment Construction

[0045]In the prior art, the eNodeB currently selects the MCS according to the CQI information and the BLER target value to achieve a balance between the BLER target value and the MCS. For some data transmission users in the cell, due to channel quality problems, when the traffic channel BLER converges to the target value, the MCS stabilizes at a relatively conservative order. At this time, in order to achieve the BLER convergence target, the data is retransmitted, so that The business data cannot be sent or received in time; and a large number of retransmission data transmissions are almost generated in the cell; almost users in the cell occupy a large amount of resources for a long time; this also reduces the perception of voice users in the cell; at the same time, the total throughput of the cell is reduced.

[0046] In view of the above problems, the application provides a method for adjusting the modulation and coding mode MCS, which specifically includes:

[0047] Determi...

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Abstract

The present application discloses a method and device for adjusting the modulation and coding mode MCS, the method includes: determining from users in the E-UTRAN cell that data transmission is required but limited by the block error rate BLER target Value-limited target user; obtain the real-time BLER of the target user in the set period; detect whether the real-time BLER is within the preset block error rate adjustment interval, and perform a BLER target value corresponding to the target user according to the detection result Adjust, and determine the MCS corresponding to the target user based on the adjusted BLER target value. The method provided by the present application solves the problem in the prior art that the balance between the BLER target value and the MCS leads to data retransmission and increases the occupancy of cell resources.

Description

technical field [0001] The present application relates to the field of electronic technology, and in particular to a method and device for adjusting a modulation and coding scheme MCS. Background technique [0002] The distribution of user terminals in the E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network) cell is not fixed, and some user terminals are distributed in the middle point of the cell. When downlink data needs to be sent, MCS (Modulation and Coding Scheme, Modulation and Coding Scheme) with a small order may be selected due to the channel quality requirements, and at the same time, the data of the user terminal cannot be sent out in time. At the same time, in order to maintain the service channel quality requirements BLER (Block Error Rate, block error rate) target value, the user's control channel / traffic channel power, PRB (Physical Resource Block, physical resource block) number, etc. need to maintai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
CPCH04L1/0003
Inventor 季建科
Owner DATANG MOBILE COMM EQUIP CO LTD
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