Invention Grant
US08537729B2 Method for sending a sounding reference signal of uplink channel in a time division duplex system
有权
用于在时分双工系统中发送上行链路信道的探测参考信号的方法
- Patent Title: Method for sending a sounding reference signal of uplink channel in a time division duplex system
- Patent Title (中): 用于在时分双工系统中发送上行链路信道的探测参考信号的方法
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Application No.: US12920958Application Date: 2009-06-02
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Publication No.: US08537729B2Publication Date: 2013-09-17
- Inventor: Peng Hao , Chunli Liang , Bo Dai , Shuqiang Xia , Bin Yu
- Applicant: Peng Hao , Chunli Liang , Bo Dai , Shuqiang Xia , Bin Yu
- Applicant Address: CN Shenzhen
- Assignee: ZTE Corporation
- Current Assignee: ZTE Corporation
- Current Assignee Address: CN Shenzhen
- Agency: Oppedahl Patent Law Firm LLC
- Priority: CN200810135392 20080801
- International Application: PCT/CN2009/072100 WO 20090602
- International Announcement: WO2010/012178 WO 20100204
- Main IPC: H04L5/14
- IPC: H04L5/14

Abstract:
A method for sending a sounding reference signal (SRS) of uplink channel in a time division duplex system is provided, a terminal calculates the parameters of the resource for sending an SRS in an uplink pilot time slot (UpPTS) according to the configuration information related to the sounding reference signal (SRS) of the uplink channel, the parameters include the frequency domain start position of the resource, and then the SRS is sent over the resource; wherein when the frequency domain start position of the resource is calculated, it is necessary to determine the index of the first sub-carrier in the maximum SRS bandwidth; the terminal determines the index according to the frequency domain position of one PRACH or that of more PRACHs in the uplink pilot time slots, when the PRACH includes the sub-carrier at the lower boundary of the system bandwidth, the upper boundary of the system bandwidth is used as the end position of the maximum SRS bandwidth and the start position of the maximum SRS bandwidth is calculated; and when the PRACH includes the sub-carrier at the upper boundary of the system bandwidth, the lower boundary of the system bandwidth is used as the start position of the maximum SRS bandwidth, and then the index is determined through the start position of the maximum SRS bandwidth plus the offset parameter configured for the terminal. With the sending position of the maximum SRS bandwidth in the UpPTS, which is obtained by the method of the present invention, the interference between the SRS signal and the PARCH can be avoided, and it is possible to implement the channel sounding for more bandwidth.
Public/Granted literature
- US20110013546A1 METHOD FOR SENDING A SOUNDING REFERENCE SIGNAL OF UPLINK CHANNEL IN A TIME DIVISION DUPLEX SYSTEM Public/Granted day:2011-01-20
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