System information scheduling method and apparatus
The present invention provides a information processing method at a terminal or a base station. The method at the terminal includes: receiving scheduling information of a physical downlink shared channel (PDSCH) carrying system information, the scheduling information of the PDSCH carried in a master information block (MIB) or downlink control information on an enhanced physical downlink control channel (EPDCCH) sent from the base station, wherein the scheduling information of the PDSCH is used for determining at least one kind of transmission information of the PDSCH; determining the transmission information of the PDSCH according to the scheduling information of the PDSCH. In this way, an extra overhead of a control instruction when a PDCCH is used to schedule a SIB in the prior art is reduced.
1. An information processing method for use at a terminal in communication with a base station serving the terminal, the method comprising:
receiving scheduling information of a physical downlink shared channel (PDSCH) carrying system information, the scheduling information of the PDSCH being carried in a master information block (MIB) sent from the base station, wherein the scheduling information of the PDSCH is used for determining at least one kind of transmission information of the PDSCH as follows: the system information exists or does not exist, a subframe where the system information is transmitted, a transmission period of the subframe, a modulation and coding mode of the PDSCH, and resource allocation information of the PDSCH;
when the transmission information of the PDSCH comprises the resource allocation information of the PDSCH, determining the resource allocation information of the PDSCH according to the scheduling information of the PDSCH;
determining, according to the scheduling information and a set of modulation and coding modes of the PDSCH corresponding to the system information, the modulation and coding mode of the PDSCH corresponding to the system information, for implementing modulation and coding processing for the system information; and
wherein determining the resource allocation information of the PDSCH comprises:
determining, according to the scheduling information, a maximum bandwidth supported by the terminal, and a cell identifier.
2. The method according to claim 1 , wherein the system information is comprised in a system information block (SIB) carried on the PDSCH.
3. An apparatus used at a terminal, comprising:
a receiving circuit, configured to receive scheduling information of a physical downlink shared channel (PDSCH) carrying system information, the scheduling information of the PDSCH being carried in a master information block (MIB) sent from a base station, wherein the scheduling information of the PDSCH is used for determining at least one kind of transmission information of the PDSCH as follows: the system information exists or does not exist, a subframe where the system information is transmitted, a transmission period of the subframe, a modulation and coding mode of the PDSCH, and resource allocation information of the PDSCH;
a processing circuit, configured to:
when the transmission information of the PDSCH comprises the resource allocation information of the PDSCH, determine the resource allocation information of the PDSCH according to the scheduling information of the PDSCH, a maximum bandwidth supported by the terminal, and a cell identifier; and
determine, according to the scheduling information and a set of modulation and coding modes of the PDSCH corresponding to the system information, the modulation and coding mode of the PDSCH corresponding to the system information, for implementing modulation and coding processing for the system information.
4. The apparatus according to claim 3 , wherein the system information is comprised in a system information block (SIB) carried on the PDSCH.