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Multi-carrier HSUPA (High Speed Uplink Packet Access) power control method, system and device

A technology of power control and power control parameters, which is applied in the field of communication, can solve problems such as not fully applicable to multi-carriers, and achieve the effect of improving performance

Active Publication Date: 2013-01-09
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, compared with single-carrier HSUPA, the introduction of multi-carrier features also brings many problems related to multi-carrier, such as the power control problem of multi-carrier HSUPA
At present, the HSUPA technology under the framework of 3GPP is defined based on single carrier. Among them, the research on the outer loop power control of the traffic channel of HSUPA is also the power control of single carrier, and the power control of single carrier cannot be fully applied to multi-carrier.

Method used

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  • Multi-carrier HSUPA (High Speed Uplink Packet Access) power control method, system and device

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Embodiment 1

[0045] In this embodiment, the HARQFailure Indicator (hybrid automatic retransmission failure indication) reported by the RNC (Radio Network Controller, radio network controller) through the FP (Frame Protocol, frame protocol) frame of the user plane of the Iub interface can be used to monitor the outer loop power Decision-making, and notify the base station (NBAP (Node B Application Protocol, Node B Application Protocol) signaling through the Iub interface) and the terminal (RRC (Radio Resource Control, Radio Resource Control) signaling through the Uu interface) code rate through high-level signaling The mapping relationship with the signal-to-noise ratio, so that the base station and the terminal can achieve the purpose of the outer loop power control by applying the updated mapping relationship between the code rate (Reference Code Rate) and the power (Reference Beta). It should be noted that this embodiment is applicable not only to the TD-SCDMA system but also to the WCDMA...

Embodiment 2

[0074] Such as figure 2 As shown, it is a flow chart of the multi-carrier HSUPA power control method according to the second embodiment of the present invention. This embodiment is different from the first embodiment in that the outer loop power control decision is mainly based on the base station, and the outer loop power control needs to be realized by adjusting Pebase. Therefore, in this embodiment, the corresponding frequency point information UARFCN IE needs to be added to the initial Pebase configuration value to distinguish the corresponding carrier. The initial value of Pebase, so as to use different Pebase reference values ​​for different carriers for subsequent adjustments.

[0075] Step S201, the network side sends the power control parameter group to the base station and the UE through high-level signaling. In this embodiment, the power control parameter group includes carrier-level power control parameters of all carriers in the multi-carrier HSUPA, and each car...

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Abstract

The invention provides a multi-carrier HSUPA (High Speed Uplink Packet Access) power control method. A base station and user equipment (UE) respectively receive a power control parameter set sent by a network side through a high-level signaling, wherein the power control parameter set comprises carrier-level power control parameters of all carriers in a multi-carrier HSUPA, and each carrier-levelpower control parameter indicates a frequency point identification corresponding to the carrier; and the base station and the UE respectively carry out subcarrier outer ring power control on each carrier in the multi-carrier HSUPA. The problem of the power control of the multi-carrier HSUPA can be solved through distinguishing the carriers by the invention, thereby effectively promoting the performance of a mobile communication system applying a multi-carrier HSUPA technology.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a multi-carrier HSUPA power control method, system and device. Background technique [0002] HSUPA (High Speed ​​Uplink Packet Access, High Speed ​​Uplink Packet Access) introduces the feature of N frequency points in 3GPP, that is, a cell can have multiple frequency points, one of which is the main frequency point, and the other frequency points are secondary Frequency. A UE (User Equipment, user equipment) works in a single-carrier working mode, and its working frequency can be either the primary frequency of the cell or the secondary frequency of the cell. The introduction of N frequency points has greatly improved the user capacity of the system. At the same time, the characteristics of N frequency points have also laid the foundation for the introduction of multi-carrier characteristics in HSUPA. The introduction of multi-carrier HSUPA can increase the user'...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/12H04B7/005
CPCY02B60/50
Inventor 张英许芳丽李晓卡
Owner DATANG MOBILE COMM EQUIP CO LTD
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