Method for performing random access and terminal for performing same
摘要
說明書
According to an embodiment, a UE can send a request for first configuration information about transmission of data suitable therefor to an eNodeB when transmitting a preamble to a numerology. The first configuration information may include information about the numerology. For example, the first configuration information may include information about a subcarrier spacing and a CP length of the numerology.
Upon reception of the first configuration information, the eNodeB can transmit second configuration information that is configuration information of the numerology to the UE as a response to the first configuration information. The second configuration information may be included in a random access response. The second configuration information may be applied from transmission of msg3 of the UE.
The second configuration information may include the same content as the first configuration information or different content from the first configuration information. For example, when the eNodeB accepts the request of the UE, the eNodeB can transmit the second configuration information having the same content as the first configuration information requested by the UE to the UE. On the other hand, when the eNodeB does not accept the request of the UE, the eNodeB can transmit the second configuration information having different content from the first configuration information to the UE.
The standard by which the eNodeB selects the second configuration information from a plurality of pieces of configuration information may vary according to embodiments. That is, the eNodeB can select the second configuration information according to a standard determined to be suitable for the UE according to a preset standard or embodiment.
