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Method and system for obtaining high-speed uplink packet scheduling capacity, and method and device for obtaining link effective data rate

A high-speed uplink and packet scheduling technology, applied in the transmission system, digital transmission system, data switching network, etc., can solve the problem of not considering the impact of system throughput, not considering the topology of the cell, and only considering the round robin scheduling algorithm, etc. problem, to achieve a comprehensive analysis

Active Publication Date: 2007-11-14
XFUSION DIGITAL TECH CO LTD
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Problems solved by technology

However, this technical solution has the following defects: only the criterion and simulation results of the scheduling algorithm are given, and the system throughput expression when the scheduling algorithm is used is not deduced
However, this technical solution has the following defects: when analyzing the interference distribution, the specific cell topology is not considered, such as the hexagonal serving sector structure; only the round robin scheduling algorithm is considered, and the impact of other scheduling algorithms on the system throughput is not considered; there is no Organic combination with link layer performance

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  • Method and system for obtaining high-speed uplink packet scheduling capacity, and method and device for obtaining link effective data rate
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  • Method and system for obtaining high-speed uplink packet scheduling capacity, and method and device for obtaining link effective data rate

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Embodiment Construction

[0050] Aiming at the defect that the existing technology only considers the system layer when estimating the cell capacity, the embodiment of the present invention comprehensively considers the impact of various key technologies of HSUPA (fast hybrid automatic retransmission, fast scheduling, 2ms TTI short frame transmission) on the HSUPA capacity The impact includes two levels of link and system.

[0051] In the link layer, the embodiments of the present invention provide the average number of data frame transmissions (formula (5)), the remaining frame error rate (formula (7)), the given modulation and coding method, the spreading factor and the combination of the number of code channels The mathematical expression for the effective data rate of the link (equation (9)) at . At this time, the probability that the mobile terminal is scheduled and the probability that the signal-to-noise ratio of the received chip at the base station falls in the SNR interval of the MCS mode n w...

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Abstract

The invention discloses method and system for obtaining capacity of dispatch (CoD) for up going link packet in high speed (UGLPHS), as well as method and device for obtaining effective data rate (EDR) of link. The invention solves defect that the current technique gives out estimated system capacity not accorded with practical situation (PS) since considering system layer only. Based on code rate in physical layer, modulated encoding method, and spread spectrum factor, and number of channel, the method determines EDR of link under different fast mixed automatic retransmission (FMAR) modes. Based on residual frame error rate of system, the method determines SNR threshold of codes, and obtains coincidence relation between EDR of system and SNR of codes. Using EDR of link obtains capacity of system. Analyzing influence on CoD for UGLPHS caused by link adaptive, FMAR, and fast dispatch in system layer synthetically, the invention gives out estimated result accorded with PS relevantly.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a high-speed uplink packet scheduling (HSUPA) capacity estimation method and system for WCDMA systems, and an effective data rate estimation method and device. Background technique [0002] The rapid development of wireless data services has put forward new requirements for communication systems. The mobile communication method based solely on voice can no longer meet people's requirements. Therefore, the future mobile communication system must provide multimedia services such as transmitting picture files, sending and receiving emails, surfing the Internet, and even on-demand movies on the basis of ensuring voice services. To meet the user's demand for high-speed data business. [0003] In order to provide higher-speed and more advanced wireless data communication services on the basis of existing networks, various enhancement technologies for mobile data communica...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L12/56H04B7/005H04B1/707H04L45/18
Inventor 吴中李鹏赵新胜
Owner XFUSION DIGITAL TECH CO LTD
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