DSCH power control method for WCDMA
First Claim
1. A DSCH power control method in a mobile communication system comprising:
- (a) receiving a signal from an UE;
(b) determining whether a cell transmitting DSCH to be set as primary or non-primary based on the received signal; and
(c) adjusting DSCH transmit power according to a result of the determination, wherein (b) includes, (1) determining whether or not a primary cell ID code contained in the received signal matches a cell ID code of the cell, and setting the cell as primary if the cell ID code matches the primary cell ID code, (2) if the cell ID code matches the primary cell ID code, determining whether the received signal is encoded in normal mode or compressed mode, and if the received signal is encoded in the compressed mode, determining whether or not the number of bits punctured from the total number of bits NID in the primary cell ID code is less than └
NID/3┘
, and setting the cell as non-primary when the number of punctured bits is not greater than └
NID/3┘
, and in all other situations, setting the cell as primary.
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Abstract
In the DSCH power control method for mobile communication system according to the present invention, the cell transmitting DSCH receives a signal from an UE, determines whether a cell transmitting DSCH to be set as primary or non-primary based on the received signal, and controls DSCH transmit power according to a result of the determination. The cell decreases DSCH transmit power when the cell is set as primary and increases DSCH transmit power when the cell is set as non-primary. In the DSCH transmit power control method of the present invention the cell transmitting DSCH sets its state as non-primary when the received signal quality is bad, such that it is possible to prevent the cell transmitting the DSCH from reducing the DSCH transmit power even when the received signal quality is bad, unlike in the typical SSDT.
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Citations
1 Claim
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1. A DSCH power control method in a mobile communication system comprising:
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(a) receiving a signal from an UE;
(b) determining whether a cell transmitting DSCH to be set as primary or non-primary based on the received signal; and
(c) adjusting DSCH transmit power according to a result of the determination, wherein (b) includes, (1) determining whether or not a primary cell ID code contained in the received signal matches a cell ID code of the cell, and setting the cell as primary if the cell ID code matches the primary cell ID code, (2) if the cell ID code matches the primary cell ID code, determining whether the received signal is encoded in normal mode or compressed mode, and if the received signal is encoded in the compressed mode, determining whether or not the number of bits punctured from the total number of bits NID in the primary cell ID code is less than └
NID/3┘
, and setting the cell as non-primary when the number of punctured bits is not greater than └
NID/3┘
, andin all other situations, setting the cell as primary.
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Specification
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- Resources
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Current AssigneeLG Electronics, Inc. (LG Corporation)
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Original AssigneeLG Electronics, Inc. (LG Corporation)
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InventorsHwang, Seung, Kim, Bong
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Application NumberUS11/546,971Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current455/522CPC Class CodesH04W 52/143 Downlink power controlH04W 52/38 TPC being performed in part...
