Feedback method and acquisition method for grouping indication information and device

A method for receiving feedback information, applying by a base station, comprising:

• transmitting information about a candidate resource set which comprises multiple resources for beam training to a terminal device, wherein each of the multiple resources corresponds to a transmitting beam at the base station;
• transmitting a pilot signal on a resource in the candidate resource set to the terminal device;
• receiving feedback information from the terminal device, wherein the feedback information comprises index information of each of more than one resource in a first-type resource group determined by the terminal device, wherein the more than one resource is selected from the multiple resources in the candidate resource set by the terminal device according to the pilot signal received by the terminal device and whether the terminal device has a capability to generate a receiving beam manner at one time instant to receive the more than one resource, wherein the first-type resource group corresponds to a receiving beam manner of the terminal device at one time instant and the terminal device has the capability to generate the receiving beam manner at one time instant to receive the more than one resource in the first-type resource group, wherein the receiving beam manner comprises one receiving beam or one receiving beam combination, wherein the index information of each of the more than one resource is an index of the each resource among the multiple resources in the candidate resource set;
• and
• performing scheduling and/or signal transmission according to the feedback information;
• wherein each resource of the multiple resources in the candidate resource set comprises following resource types of a signal on the each resource:
• a transmission antenna port resource, a transmission frequency domain resource, a transmission sequence resource and a transmission time domain resource.