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Sending method and device of measure-reference signal under state of carrier aggregation

A technology for measuring reference signals and carrier aggregation, which is applied in the field of communication to achieve the effect of increasing efficiency and optimizing performance

Inactive Publication Date: 2009-09-23
ZTE CORP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0036] The technical problem to be solved by the present invention is to propose a method for sending measurement reference signals in the case of carrier aggregation, to solve the problem of how the UE sends SRS on multiple uplink component carriers when carrier aggregation is used, and to maintain compatibility with LTE UEs

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  • Sending method and device of measure-reference signal under state of carrier aggregation
  • Sending method and device of measure-reference signal under state of carrier aggregation
  • Sending method and device of measure-reference signal under state of carrier aggregation

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Embodiment Construction

[0091]The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0092] Such as Figure 8 As shown, the method of the embodiment of the present invention includes the following steps:

[0093] Step 801: The base station configures one or more sets of SRS configuration parameters for the uplink component carriers that the UE needs to measure under carrier aggregation, and sends them to the UE;

[0094] Specifically, the base station may configure a set of SRS configuration parameters for one uplink component carrier, or may configure a set of SRS configuration parameters for multiple uplink component carriers;

[0095] The SRS configuration parameter is used to configure the SRS sent on the uplink component carrier;

[0096] The SRS configuration parameters include (but are not limited to) one or more of the following:

[0097] ● The cell-specific SRS bandwidth configuration index on the uplink component carrier;

[0098] ● UE...

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Abstract

The invention discloses a sending method and a sending device of a measure-reference signal under state of carrier aggregation, being applied to an advanced long-term evolution system. The sending method comprises the steps: a base station configures a group or a plurality of groups of measure-reference signal configuration parameters for an uplink component carrier to be measured of user equipment (UE) under carrier aggregation and sends the parameters to the UE; and according to the received measure-reference signal configuration parameters, the UE sends the measure-reference signal to the base station. The invention can maintain the compatibility with the UE of the long-term evolution system and can optimize the property for sending measure signals of the UE of the advanced long-term evolution system when the carrier aggregation technology is adopted.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to a method and device for transmitting uplink measurement reference signals in the case of carrier aggregation. Background technique [0002] A measurement reference signal (Sounding Reference Signal, SRS) is a signal used between a terminal device and a base station to measure wireless channel information (channel state information, CSI). In the Long Term Evolution (LTE) system, the User Equipment (UE) transmits at regular intervals according to the bandwidth, frequency domain position, period, and subframe offset indicated by the base station (e-node-B, eNB) Uplink SRS. The eNB judges the uplink CSI of the UE according to the received SRS signal, and performs operations such as frequency domain selection scheduling and closed-loop power control according to the obtained CSI. [0003] In the LTE system, the SRS signal sent by the UE is based on a root sequence r u，v (n) Obtain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04B17/00
CPCH04W24/10
Inventor 张戎郝鹏张禹强王瑜新朱鹏喻斌
Owner ZTE CORP
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