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A method and apparatus for transmitting a sounding reference signal (SRS)

A technology for sounding reference signals and parameters, which is applied in the field of sending sounding reference signals (SRS), and can solve the problems of unsupported LTE, poor flexibility, and insufficient support for frequency hopping methods.

Active Publication Date: 2019-05-24
HUAWEI TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the LTE or LTE-A system, frequency hopping is performed based on the bandwidth configured at the cell level, that is, the frequency hopping mode of the terminal device is determined according to the total bandwidth of the SRS measurement uniformly configured by the cell, and only supports hopping between time slots. frequency
In addition, LTE does not support the measurement of aperiodic SRS
[0004] It can be seen that the existing communication system does not support enough frequency hopping and has poor flexibility.

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  • A method and apparatus for transmitting a sounding reference signal (SRS)
  • A method and apparatus for transmitting a sounding reference signal (SRS)
  • A method and apparatus for transmitting a sounding reference signal (SRS)

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[0068]The technical solution in this application will be described below with reference to the accompanying drawings.

[0069] The technical solution in this application will be described below with reference to the accompanying drawings.

[0070] figure 1 It is the wireless communication system 100 applicable to the embodiment of the present application. The communication system 100 may include at least one network device 101, and the network device 101 communicates with one or more terminal devices (for example, figure 1 Terminal device 102 and terminal device 103 shown in ) communicate. The network device 101 may be a base station, or a device integrated with a base station and a base station controller, or other devices with similar communication functions.

[0071] The wireless communication systems mentioned in the embodiments of the present application include but are not limited to: Global System of Mobile communication (GSM) system, Code Division Multiple Access (C...

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Abstract

The invention provides a method for sending a sounding reference signal (SRS), which can support various frequency hopping modes, so that the flexibility of frequency hopping can be improved. The method comprises the following steps of: the terminal device receives first configuration information of the SRS resource from the network device, wherein the first configuration information comprises a repetition factor of the SRS resource, the repetition factor of the SRS resource refers to the number N of the SRS resource mapped to the same subcarrier in one time unit and mapped to at least one continuous symbol, and N is greater than or equal to 1 and is an integer; The terminal device determines at least one first frequency domain resource mapped by the SRS resource in a first time unit according to the first configuration information; And the terminal device sends the SRS to the network device in the at least one first frequency domain resource.

Description

technical field [0001] The present application relates to the field of communications, and in particular to a method and device for sending a Sounding Reference Signal (SRS). Background technique [0002] In a Long Term Evolution (Long Term Evolution, LTE) or an evolved LTE (LTE-Advanced, LTE-A) system, uplink measurement of a terminal device is implemented by sending a Sounding Reference Signal (Sounding Reference Signal, SRS). The network device acquires uplink channel state information by measuring the SRS sent by the terminal device. Further, in the LTE or LTE-A system, since the distance between the terminal equipment and the network equipment (for example, base station) is different, the remote terminal equipment may be limited in power. In order to ensure that the base station receives the SRS with sufficient power, the terminal equipment must ensure a narrow bandwidth when sending the SRS. At this time, in order to measure the SRS of the total system bandwidth, the...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W72/04
CPCH04L27/2613H04L5/0048H04L5/0012H04L5/0057H04L5/0053H04L27/26136H04B1/713H04J11/00
Inventor 秦熠窦圣跃高翔刘建琴张闽
Owner HUAWEI TECH CO LTD
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