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Method for adjusting user-terminal up-link power proportioning

A user terminal and power technology, applied in transmission control/equalization, sustainable architecture, climate sustainability, etc., can solve problems such as large errors and inconsistencies, improve accuracy, reduce signaling load, and reduce uplink power Effects of Bias Error

Inactive Publication Date: 2009-11-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the above-mentioned existing calculation method, since the RNC only indicates one reference TFC, except for a few TFCs close to the reference TFC, most of the other TFCs are quite different from the reference TFC, resulting in the calculation of most target TFCs. beta c and beta d The error will be relatively large, resulting in the adjustment result of the uplink power ratio not meeting the expected requirements

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  • Method for adjusting user-terminal up-link power proportioning
  • Method for adjusting user-terminal up-link power proportioning
  • Method for adjusting user-terminal up-link power proportioning

Examples

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no. 1 example

[0038] refer to figure 1 , the first embodiment of the present invention comprises the following steps:

[0039] Step 101, the RNC indicates multiple reference TFCs and their uplink power offset β to the UE through signaling c and beta d . And, for TFCs other than the reference TFC, the RNC indicates to the UE the reference TFC corresponding to each TFC through signaling.

[0040] Taking the packet service (PS) domain 384k (PS384k) in Table 3 as an example to illustrate, PS384k can transmit 12 blocks×336 bits / block within a transmission time interval (TTI) of 10 milliseconds. There are 13 kinds of TFC in PS384k. Since the coding gain is greatly affected by the length of the coding block, the coding gain of the Turbo code from 12×336 to 9×336 is relatively close, and the coding gain of the Turbo code from 8×336 to 4×336 is relatively close. The coding gains of Turbo codes from 4×336 to 0×336 are relatively close, so set one reference TFC uplink power offset in each of the a...

no. 2 example

[0048] refer to figure 2 , the second embodiment of the present invention comprises the following steps:

[0049] Step 201, the RNC indicates multiple reference TFCs and the uplink power offset β of each reference TFC to the UE through signaling c and beta d . The corresponding TFCI may be used to represent the reference TFC. Preferably, the plurality of reference TFCs may be uniformly distributed or non-uniformly distributed according to corresponding TFCI intervals.

[0050] Since the second embodiment does not need to indicate to the UE the reference TFCs corresponding to TFCs other than the reference TFC, the signaling in step 201 only needs to include at least: information elements representing the multiple reference TFCs, representing the multiple reference TFCs TFC uplink power offset cell. In this way, the signaling load of the Uu interface is further reduced.

[0051] Step 202, if the target TFC to be used by the UE is one of multiple reference TFCs indicated b...

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Abstract

The invention is concerned with the method for adjusting UE up link power matching proportion, includes the following steps: 1) the wireless network controller RNC indicates some reference transmission format assemblage TFC and the up power off-set to UE by the signaling; 2) the UE confirms the reference TFC corresponding with the target TFC, computes the up power off-set of the object TFC according to the up power off-set of the reference TFC; 3) the UE adjusts the up power matching proportion according to the up power off-set of the object TFC. The invention can improve the precision of the object TFC up power off-set, reduce the error of the the object TFC up power off-set. The invention is also concerned with the project that do not sent the reference TFC information of other TFC, the UE selects the corresponding reference TFC project, in order to reduce the signaling burden of the Uu interface.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for adjusting the uplink power ratio of a user terminal (UE). Background technique [0002] In wideband code division multiple access (WCDMA) systems, the uplink power offset is used to balance the dedicated physical control channel (DPCCH) and dedicated physical data channel (DPDCH) in the uplink (uplink, UL) dedicated physical channel (DPCH) The power ratio between, and different transport format combinations (TFC) have their own uplink power offset ratio, the uplink power offset is usually used for the gain factor β of DPCCH c and gain factor β for DPDCH d To represent. According to the TS 25.213 agreement of the Third Generation Partnership Organization (3GPP), at any time β c and beta d At least one of the quantized values ​​of is 1.0, and β c and beta d It is 4bit. Table 1 gives the β c and beta d The value of and the corresponding quantizat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005
CPCY02B60/50
Inventor 伏玉笋
Owner HUAWEI TECH CO LTD