Patent ID: 11950214
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method, the method comprising:
transmitting, by a transceiver in a network node device for wireless communication, frequency resource information to indicate a set of frequency resources for physical random access channel (PRACH) preamble transmission, the transmitted frequency resource information for:
indicating each frequency resource comprising: an interlace information indicating at least one of an interlace of a block-interlaced frequency-division multiplexing (B-IFDM) allocation, a resource element allocation information indicating a subset of resource elements within each block of the at least one B-IFDM interlace, and a resource element spacing information,
such that an at least one resource element within at least one block of the at least one B-IFDM interlace is allocated for the transmission of one PRACH preamble according to a tone-interlaced frequency-division multiplexing (T-IFDM) allocation and the resource element allocation is repeated in each block of the at least one B-IFDM interlace, wherein a distribution of the subset of resource elements within each block of the at least one B-IFDM interlace is non-uniform;

receiving, by the transceiver in the network node device for wireless communication, a signal comprising at least one PRACH preamble, each of the at least one PRACH preambles transmitted on one frequency resource of the indicated set of frequency resources;
deriving , by a processor in the network node device for wireless communication, at least one index from the received signal, each derived index corresponding to one of the PRACH preambles contained in the received signal.