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Multi-antenna parameter configuration method and device for sounding reference signals (SRSs)

A technology for measuring reference signals and parameter configuration methods, which is applied in the field of communication and can solve problems such as the inability to determine multi-antenna SRS parameter configurations

Active Publication Date: 2011-05-25
ZTE CORP
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  • Abstract
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Problems solved by technology

[0013] In view of this, the main purpose of the present invention is to provide a multi-antenna parameter configuration method and device for measuring reference signals, which is used to solve the problem that the multi-antenna SRS parameter configuration cannot be determined in the prior art

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  • Multi-antenna parameter configuration method and device for sounding reference signals (SRSs)

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[0072] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0073] image 3 A flow chart of the multi-antenna parameter configuration method for the measurement reference signal provided by the present invention, the method includes:

[0074] Step 301, the base station notifies the user terminal UE of the parameters for sending the SRS through high-layer signaling, and the parameters for sending the SRS include cyclic shift and frequency comb k TC (or called transmissionComb);

[0075] The SRS includes periodic SRS and aperiodic SRS.

[0076] Step 302: After obtaining the SRS sending parameters notified by the base station, the UE determines the SRS sending parameters for each antenna port according to the number of SRS sending antenna ports and the preset mapping relationship.

[0077] Pref...

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Abstract

The invention discloses a multi-antenna parameter configuration method and a multi-antenna parameter configuration device for sounding reference signals (SRSs), which aim to solve the problem that multi-antenna SRS parameter configuration cannot be determined in the prior art. According to the invention, an e-node-B (eNB) informs user equipment (UE) of transmitting the parameters of the SRSs through a high layer signaling, the UE determines the parameter of the SRS transmitted by every antenna port according to the number of the antenna ports which transmit the SRSs and a preset mapping relation, the circulated displacement of every antenna part is distributed at equal intervals, and the maximal value of the interval is taken; when the number of the antenna ports which transmit the SRSs is 4, the frequency combs of the antenna port 0 and the antenna port 1 are kTC; and the frequency combs of the antenna port 2 and the antenna port 3 which correspond to a part of circulated displacement information are kTC, and the frequency combs of the antenna port 2 and the antenna port 3 which correspond to the rest circulated displacement information are 1-kTC. By adopting the technical scheme, a terminal can determine the parameter of the SRS transmitted by every antenna port according to the configured implicit mapping relation, so that the signaling overhead can be saved, and the configuration flexibility can be ensured.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for configuring multi-antenna parameters of a measurement reference signal (Sounding Reference Signal, SRS). Background technique [0002] The uplink physical channels of the Long Term Evolution (LTE) system include Physical Random Access Channel (Physical Random Access Channel, PRACH), Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH), Physical Uplink Control Channel (Physical Uplink Control Channel) Channel, PUCCH). In LTE, a Physical Downlink Shared Channel (PDCCH) is used to carry uplink and downlink scheduling information and uplink power control information. A base station (e-Node-B, eNB) can configure a terminal equipment (User Equipment, UE) through downlink control information, or the terminal equipment accepts configuration from higher layers (higher layers), which is also referred to as configuring the UE through higher layer ...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B7/04H04W24/08
CPCH04W72/042H04W72/23
Inventor 左志松王瑜新
Owner ZTE CORP
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