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Wireless communication system, base station device, mobile station device, wireless communication method, and integrated circuit

A mobile station, base station technology, applied in wireless communication, multiplexing communication, time division multiplexing system, etc., can solve the problem of not being able to control the accumulation efficiently, and achieve the effect of efficient control

Active Publication Date: 2014-01-29
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, in the conventional technology, when the mobile station apparatus transmits a physical random access channel to the base station apparatus in a plurality of cells, there is a problem that the parameter calculated by accumulating the values ​​indicated by the TPC command cannot be efficiently controlled.

Method used

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  • Wireless communication system, base station device, mobile station device, wireless communication method, and integrated circuit
  • Wireless communication system, base station device, mobile station device, wireless communication method, and integrated circuit
  • Wireless communication system, base station device, mobile station device, wireless communication method, and integrated circuit

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Embodiment Construction

[0044] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0045] First, the physical channel of the present invention will be described.

[0046] figure 1 It is a conceptual diagram of the wireless communication system according to the embodiment of the present invention. exist figure 1 Here, the wireless communication system includes mobile station devices 1A to 1C and a base station device 3 . figure 1 It shows that in wireless communication (downlink) from the base station apparatus 3 to the mobile station apparatuses 1A to 1C, a synchronization signal (Synchronization signal: SS), a downlink reference signal (Downlink Reference Signal: DL RS), a physical Broadcast Channel (Physical Broadcast Channel: PBCH), Physical Downlink Control Channel (Physical Downlink Control Channel: PDCCH), Physical Downlink Shared Channel (Physical Downlink Shared Channel: PDSCH), Physical Multicast Channel (Physical Multicast Chann...

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Abstract

In the present invention, when a mobile station device transmits a physical random access channel to a base station device via a plurality of cells, the transmission power of a physical uplink channel is efficiently controlled. In a mobile station device, which performs a random access procedure with a base station device via a plurality of cells, downlink control information containing a transmission power control command regarding a physical uplink control channel is received from the base station device, a parameter is calculated by accumulating values indicated by the transmission power control command, the transmission power of a physical uplink control channel is set using the parameter, the physical uplink control channel is transmitted to the base station device via a particular cell, and when a random access response regarding the particular cell is received from the base station device, the accumulation of the parameter is reset.

Description

technical field [0001] The present invention relates to a wireless communication system, a base station device, a mobile station device, a wireless communication method, and an integrated circuit. Background technique [0002] In the 3rd Generation Partnership Project (3rd Generation Partnership Project: 3GPP), the wireless access mode of cellular mobile communication and the evolution of wireless networks (hereinafter referred to as "Long Term Evolution, Long Term Evolution (LTE)" or "Evolved Universal Terrestrial Radio Access, Evolved Universal Terrestrial Radio Access (EUTRA)"). In LTE, an Orthogonal Frequency Division Multiplexing (OFDM) method of multi-carrier transmission is used as a communication method for wireless communication (downlink) from a base station apparatus to a mobile station apparatus. In addition, as a communication method of wireless communication (uplink) from the mobile station apparatus to the base station apparatus, an SC-FDMA (Single-Carrier Fr...

Claims

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Application Information

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IPC IPC(8): H04W52/22H04J3/00H04W52/38H04W72/04H04W74/08
CPCH04W88/08H04W52/221H04W28/18H04W88/02H04W52/325H04W52/226H04W52/18H04W52/146Y02B60/50H04W52/50H04W74/0833Y02D30/70H04W72/0473H04W74/004H04W74/006
Inventor 铃木翔一相羽立志
Owner SHARP KK