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Method and equipment for TPC command determining

A technology for determining methods and commands, applied in the field of communications, can solve problems such as over-adjustment of transmit power, too simple TPC command generation, and improper adjustment.

Active Publication Date: 2014-01-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
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Problems solved by technology

[0052] Embodiments of the present invention provide a method and device for determining a TPC command, which solves the problem that the existing TPC command generation method is too simple and may over-adjust or improperly adjust the UE uplink PUSCH transmission power

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  • Method and equipment for TPC command determining
  • Method and equipment for TPC command determining
  • Method and equipment for TPC command determining

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Embodiment Construction

[0066] As described in the background, the existing TPC command generation method is too simple. During the uplink PUSCH power control process, the closed-loop TPC command generation method is not fine enough, which may cause over-adjustment or improper adjustment of the uplink transmit power on the UE side.

[0067] In order to overcome such a defect, an embodiment of the present invention proposes a method for determining a TPC command. By improving the accuracy of the TPC command, the reliability and accuracy of the uplink PUSCH power control closed-loop adjustment are improved, and the system performance is improved.

[0068] Such as figure 1 As shown, it is a schematic flowchart of a method for determining a TPC command proposed in an embodiment of the present invention, and the method specifically includes the following steps:

[0069] Step S101, the base station maintains an equivalent SINR error queue for each terminal device it serves.

[0070] Wherein, the equivalen...

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Abstract

The embodiment of the invention discloses a method and equipment for TPC command determining. According to the technical scheme provided by the embodiment of the invention, a base station can combine the complexity of a real network environment with rapid change of a channel environment and make use of information of an equivalent SINR error queue maintained for each piece of terminal equipment to determine a TPC command sent to a corresponding piece of terminal equipment. Therefore, the problem that uplink PUSCH transmit power may be excessively or improperly adjusted as a TPC command determining method in an existing product is too simple is effectively solved.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method and device for determining a TPC command. Background technique [0002] In the LTE (Long Term Evolution, long-term evolution) system, the power control process of the PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) is to adjust the transmission power of the PUSCH to compensate for path loss, shadow fading, and fast fading. influences. [0003] At the same time, the power control of PUSCH is also used to control the interference level between cells. PUSCH power control mainly consists of two parts: open loop and closed loop. An indispensable and important part in the closed-loop power control process is the TPC (Transmit Power Control, transmit power control) command. [0004] The LTE standard stipulates that the TPC command needs to be included in the PDCCH (Physical Downlink Control Channel, physical downlink control channel) wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/04H04W52/24
Inventor 刘蓉徐明宇
Owner DATANG MOBILE COMM EQUIP CO LTD
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