Method, terminal and base station for triggering terminal to transmit measurement reference signal
A technology for measuring reference signal and terminal transmission, applied in the field of communication, can solve the problems of waste of resources, inflexibility, and high measurement delay, and achieve the effects of meeting different measurement requirements, avoiding high overhead, and matching resources flexibly
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Embodiment 1
[0039] This embodiment will be described from the perspective of a base station, and the base station may specifically be an evolved base station, or other entities with similar functions.
[0040] A triggering method, comprising: acquiring measured demand information; selecting resources for a terminal that needs to be triggered in a preset resource pattern according to the acquired demand information, wherein resources corresponding to various demand information are preset in the resource pattern Information; use the selected resource to trigger the terminal to send SRS.
[0041] see figure 1 , the specific process can be as follows:
[0042] 101. Obtain measurement requirement information; wherein, the requirement information may specifically include the location and bandwidth of the frequency band to be measured, and optionally, may also include the time delay of the measurement, the number of PDCCHs that need to be triggered, and the quality requirements of the measureme...
Embodiment 2
[0057] On the basis of Embodiment 1, in addition to presetting at least one resource pattern on the base station, it is also necessary to configure these resource patterns to the terminal. Specifically, the configuration can be performed by the user directly on the terminal, or by the base station through high-level signaling Configure on the terminal, that is, before triggering the terminal, the trigger method can also include:
[0058] Configure at least one preset resource pattern to the terminal through high-level signaling.
[0059] In this way, after the terminal is triggered by the base station, it can determine the required resource pattern among multiple resource patterns according to the trigger time, determine the resource in the resource pattern, and then use the determined resource to send the SRS.
[0060] Among them, resource information corresponding to various demand information is preset in these resource patterns, that is, different demand information is con...
Embodiment 3
[0070] This embodiment will be described from the perspective of a terminal.
[0071] A triggering method, comprising: receiving a trigger from a base station, selecting a resource in a preset resource pattern according to the trigger, and sending an SRS according to the selected resource, wherein the resource patterns are preset with multiple bandwidths and the corresponding bandwidths of the various bandwidths resource information.
[0072] see figure 2 , the specific process can be as follows:
[0073] 301. Receive a trigger from a base station;
[0074] 302. Select resources from preset resource patterns according to the trigger in step 301;
[0075] For example, the subframe number can be determined according to the trigger in step 301, a resource pattern can be determined among multiple preset resource patterns according to the determined subframe number, and then a resource can be selected in the determined resource pattern.
[0076] Among them, resource informatio...
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