Method and system for sending measurement reference signal, base station and relay station

A technology for measuring reference signals and reference signals, which is applied in the field of advanced long-term evolution systems, and can solve the problems of not providing a solution for measuring reference signals of base stations and relay stations, and that UE cannot complete the measurement of relay stations, so as to reduce the impact and realize the effect of measurement.

Active Publication Date: 2010-11-03
盐城东方汽车广场投资发展有限公司
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Problems solved by technology

[0007] At present, in the LTE-A system, for relay stations without independent PCID, there is no scheme for the base station and the relay stati

Method used

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  • Method and system for sending measurement reference signal, base station and relay station
  • Method and system for sending measurement reference signal, base station and relay station
  • Method and system for sending measurement reference signal, base station and relay station

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Embodiment Construction

[0061] figure 2 A flowchart of a method for sending a measurement reference signal for the present invention, such as figure 2 Shown, the inventive method comprises the following steps:

[0062] Step 200: the base station configures the relay station to send the configuration information of the measurement reference signal, and sends it to the relay station.

[0063] In the LTE-A system, the CSI-RS of the base station is transmitted in the form of a duty cycle, that is, the base station does not transmit the CSI-RS in every subframe. The configuration information is used by the relay station to determine the sending subframe position of the measurement reference signal. Specifically, the measurement reference signal is sent between the relay station and the base station in a time-division manner. The time division means that the base station and the relay station send CSI in different subframes respectively. -RS, which avoids interference between the CSI-RS of the base sta...

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Abstract

The invention provides a method and a system for sending a measurement reference signal. The invention adopts the technical scheme that the configuration information of a relay station for sending a measurement reference signal is set in a base station, and the relay station is used for generating the measurement reference signal and sending the generated measurement reference signal according to the received configuration information for sending the measurement reference signal, wherein the configuration information is used for the relay station for determining the sub-frame position information sent by the measurement reference signal, and the measurement reference signal of the relay station and the measurement reference signal of the base station are sent in a time division mode. Through the technical scheme, the scheme of issuing the configuration information by the base station and sending the measurement reference signal by the relay station is provided in an LTE-A (Long Term Evolution-Advanced) system of the relay station without an independent PCID (Physical Cell Identity), thereby realizing the measurement of channel conditions from the relay station to a UE (User Equipment) link of the UE. The invention also provides the base station and the relay station, which realize the method for sending the measurement reference signal.

Description

technical field [0001] The present invention relates to advanced long-term evolution (LTE-A, LTE-Advanced) system technology, especially to a method, system, base station and relay station for sending measurement reference signals. Background technique [0002] The development of mobile communications requires support for higher transmission rates, better signal coverage, and higher resource utilization. In order to achieve a high transmission rate, the next-generation mobile communication system will use a higher frequency bandwidth to transmit signals, and a higher frequency bandwidth will bring greater path loss at the same time, affecting network coverage. The relay (Relay) technology can increase coverage and balance, and increase cell throughput, and the relay station has a relatively small configuration cost compared with the base station. Therefore, the relay technology is regarded as a key technology in the evolution system of Long Term Evolution (LTE, Long Term Ev...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04B17/00
CPCH04W36/385
Inventor 吴栓栓毕峰梁枫袁明杨瑾
Owner 盐城东方汽车广场投资发展有限公司
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