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Method, base station and radio access network system for indicating channel power bias value of enhanced configuration dedicated channel HARQ

A hybrid automatic retransmission and enhanced dedicated channel technology, applied in transmission systems, digital transmission systems, power management and other directions, can solve the problem of affecting the transmission power of other physical channels, affecting the HARQ retransmission function, and correctly realizing the uplink throughput of the HSUPA system. Problems such as reasonable setting of E-HICH power offset value are given

Active Publication Date: 2009-06-03
HUAWEI TECH CO LTD
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Problems solved by technology

[0009] The existing agreement simply provides that the power of the E-HICH can be set through the power offset method, and does not provide a technical solution for setting the power offset value of the E-HICH reasonably. Therefore, there are the following defects: due to Different service types and channel environments have different requirements for downlink E-HICH transmission power. If the power offset value of E-HICH is set too high, it will affect the transmission power of other physical channels in the cell; If the power offset value is set too low, the UE will not be able to correctly obtain the HARQ indication information carried on the E-HICH, thus affecting the correct implementation of the HARQ retransmission function and the uplink throughput of the HSUPA system

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  • Method, base station and radio access network system for indicating channel power bias value of enhanced configuration dedicated channel HARQ
  • Method, base station and radio access network system for indicating channel power bias value of enhanced configuration dedicated channel HARQ
  • Method, base station and radio access network system for indicating channel power bias value of enhanced configuration dedicated channel HARQ

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Embodiment Construction

[0037] The embodiment of the present invention gradually adjusts the power offset value of the E-HICH according to the relationship between the decoding success rate of the HARQ indication information sent to it by the UE within a certain period of time and the preset successful decoding target value, By dynamically adjusting the power offset value of the E-HICH, the correct implementation of the HARQ retransmission function is ensured, and the uplink throughput of the UMTS HSUPA system is improved.

[0038] figure 1 Shown is a schematic structural diagram of a NodeB embodiment of the present invention, the NodeB of this embodiment includes a data processing module 11, an information sending module 12, an information storage module 13, a judging module 15, a computing module 16 and a power configuration module 17 connected in sequence, and The RSN detection module 14 connected with the judging module 15 .

[0039] Among them, the data processing module 11 is used to judge wh...

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Abstract

A method for configuring power offset valve of E-HICH includes detecting RSN value sent in current TTI by terminal, obtaining HARQ indication information sent to terminal, judging whether decoding on received HARQ indication information by terminal is successful or not according to whether RSN value and HARQ indication information are matched to maximum retransmission frequency or not, calculating out decoding successful rate of terminal at certain period of time, regulating power offset value of E-HICH to make decoding successful rate be approximated on object value if decoding successful rate is not equal to object value.

Description

[0001] Technology area [0002] The present invention relates to a wireless enhancement technology for high-speed uplink packet access in a Universal Mobile Telecommunication System (Universal Mobile Telecommunication System, hereinafter referred to as: UMTS), in particular to an enhanced dedicated channel hybrid automatic repeat request indicator channel (E-DCH HARQ Indicator Channel, hereinafter referred to as Abbreviation: E-HICH) power offset value method, base station and radio access network (radioaccess network, hereinafter referred to as: RAN) system. Background technique [0003] With the rapid development of mobile communication technology, the third generation mobile communication (The Third Generation, hereinafter referred to as: 3G) technology has also been continuously developed and evolved. High Speed ​​Downlink Packet Access (HSDPA for short) and High Speed ​​Uplink Packet Access (HSUPA for short) are just one of the achievements of the continuous evolution of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L1/16H04L1/18H04L1/00H04B7/005H04L27/02H04Q7/30H04W52/04H04W52/32
CPCH04W52/325H04W52/04
Inventor 李巍徐昌平
Owner HUAWEI TECH CO LTD
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