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Uplink measurement method and system for relay network

A technology of relay network and measurement method, which is applied in the field of uplink measurement method and system, and can solve the problems of reducing system performance, inability to separate, weakening scheduling gain, etc.

Inactive Publication Date: 2011-01-26
海宁市盐官工业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of this existing solution is that the transmitted CRS includes both CRS for downlink measurement and CRS for conventional data demodulation. In the LTE system, since the UE of the old version needs to perform For data demodulation, if the relay station also sends CRS, the UE cannot separate the CRS used for demodulation from the CRS used for measurement, which may cause performance degradation of data demodulation, and also affect the accuracy of measurement, thus Weaken the scheduling gain and reduce the system performance. Therefore, there is an urgent need for a new measurement scheme that can solve the above deficiencies

Method used

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Embodiment 1

[0077] The relay station RN1 performs blind detection on the SRS signals on 5 consecutive uplink subframes, and measures the blindly detected SRS signals, obtains the CQI value of the measurement result accordingly, and configures the index parameters and cycle of the CQI value and the SRS corresponding to the measurement The shift parameters are written into the measurement report together, and the measurement report is sent to the eNB, and the eNB allocates routes for the UE and RN2 according to the measurement report.

[0078] In simple terms, such as Figure 5 As shown, this method embodiment includes the following steps:

[0079]Step 201, RN1 blindly detects and receives and measures the SRS signal.

[0080] Step 202, RN1 generates a measurement report and sends the measurement report to the eNB.

[0081] Step 203, eNB distributes routes for UE and RN2.

Embodiment 2

[0083] The relay station RN2 monitors the SRS bandwidth configuration parameters, SRS subframe configuration parameters, ACK / NACK and SRS coexistence switch parameters, maximum uplink special time slot parameters, SRS bandwidth parameters, SRS frequency hopping bandwidth parameters, frequency domain position parameters, Duration parameter, SRS configuration index parameter, transmission retrieval parameter, cyclic shift parameter, RN1 directly receives and measures the uplink SRS signal based on the obtained SRS configuration parameter, obtains the measurement result accordingly, and writes the measurement result into the measurement report, but the measurement report is not sent to eNB and RN1, and RN2 directly allocates radio resources for UE according to the measurement report.

[0084] In simple terms, such as Figure 6 As shown, this method embodiment includes the following steps:

[0085] Step 301, RN2 monitors SRS configuration parameters.

[0086] Step 303, RN2 direc...

Embodiment 3

[0090] The base station eNB informs the relay station RN1 through signaling: SRS bandwidth configuration parameters, SRS subframe configuration parameters, ACK / NACK and SRS coexistence switch parameters, maximum uplink special time slot parameters, SRS bandwidth parameters, SRS frequency hopping bandwidth parameters, frequency domain position parameters , duration parameter, SRS configuration index parameter, transmission retrieval parameter, and cyclic shift parameter, RN1 directly receives and measures the uplink SRS signal based on the obtained SRS configuration parameter, obtains the measurement result accordingly, and measures the measurement result The corresponding SRS configuration index parameters are written into the measurement report, and the measurement report is sent to the eNB, and the eNB allocates routing and radio resources for the UE according to the measurement report.

[0091] In simple terms, such as Figure 7 As shown, this method embodiment includes the...

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Abstract

The invention discloses an uplink measurement method in a relay network, which comprises: generating a measurement report according to the measurement of an uplink detection pilot frequency (SRS) signal; executing corresponding treatment according to the measurement report, wherein the measurement can be realized by at least one of blind detection, monitoring and signaling notification. The invention also discloses an uplink measurement system for the relay network. In the system, the measurement unit is used for measuring an uplink SRS signal, generating a measurement report and sending the measurement report to the processing unit; and the measurement is realized by at least one of blind detection, monitoring and signaling notification. When the method and the system of the invention are used, the normal data demodulation and receiving of downlink data are not affected, and compatibility with the user equipment of the conventional version is achieved; the accuracy of the measurement is improved, the signaling expense is reduced, the scheduling gain is ensured, and the transmission efficiency of the relay network is improved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to an uplink measurement method and system in a relay network. Background technique [0002] As an emerging technology, relay technology has attracted more and more attention, and is regarded as the Beyond the Third Generation in mobile communication system (B3G, Beyond the Third Generation in mobile communication system), or the fourth generation mobile communication system (4G, The Key technologies of the Fourth Generation in mobilecommunication system). Since future wireless communication or cellular systems require increased coverage to support higher-speed transmission, this poses new challenges to wireless communication technology. At the same time, the cost of system construction and maintenance is more prominent. With the increase of transmission rate and communication distance, the problem of battery energy consumption has become more prominent, and future wireless com...

Claims

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Application Information

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IPC IPC(8): H04W16/26H04W24/10H04B1/707
CPCH04W84/047H04W24/10
Inventor 梁枫毕峰吴栓栓袁明杨瑾
Owner 海宁市盐官工业投资有限公司
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