Method, base station, and system of configuring relay link resources

摘要

A method, a base station, and a system of configuring relay link resources are provided. The method of configuring relay link resources includes: receiving an orthogonal frequency division multiplexing OFDM symbol number reported by a relay node RN, in which the OFDM symbol is used by a physical downlink control channel PDCCH of a multimedia multicast broadcast single frequency network MBSFN subframe where a relay link of the RN is located; and configuring relay link resources according to the OFDM symbol number, an offset, and a length of a PDCCH in an eNB subframe, in which the offset is an offset of an RN frame relative to the time when the RN frame is initially synchronized with an eNB frame, and is smaller than a sum of a length of the PDCCH of the MBSFN subframe where the relay link of the RN is located and a first idle time.

主权项

1. A method of configuring relay link resources, comprising:
receiving, by a relay node (RN), relay link information on the relay link resources, from a base station, wherein the relay link resources start from an orthogonal frequency division multiplexing (OFDM) symbol corresponding to a start time of the RN receiving the relay link information, the OFDM symbol corresponding to the start time of the RN receiving the relay link information is a Kth OFDM symbol in a base station subframe, the relay link resources comprise f OFDM symbols, wherein f=14−K−N, wherein K is a serial number of one of the OFDM symbols comprised in the base station subframe corresponding to a start time of the base station which sends the relay link information, wherein N is an integer and is one of 0, 1 and 2, and a sum of K and N is smaller than 14; wherein the relay link resources are configured according to an OFDM symbol number used by a physical downlink control channel (PDCCH) of a multimedia multicast broadcast single frequency network (MBSFN) subframe where a relay link of the RN is located, an offset, and a length of a PDCCH in the base station subframe, and the offset is a time offset of timing of an access link of an RN frame relative to timing of a relay link of the RN frame.