Information sending and blind detection method and device

摘要

Disclosed are an information sending and blind detection method and device, relating to the technical field of wireless communication technologies and for realizing a new information sending and blind detection method over a physical downlink control channel (PDCCH). In the present application, a base station determines a plurality of preset blind detection candidate sets, each blind detection candidate set containing at least one PDCCH candidate resource; and uses the PDCCH Candidates in at least one blind detection candidate set of the plurality of blind detection candidate sets to send control information to a terminal. The terminal determines a plurality of preset blind detection candidate sets, and performs blind detection of control information over the PDCCH Candidates in each blind detection candidate set of the plurality of blind detection candidate sets. By applying the present applications, a new information sending and blind detection method over a PDCCH is realized.

主权项

1. A method for transmitting information, comprising:
determining, by a base station, a plurality of preset sets of blind detection candidates, each of which comprises one or more Physical Downlink Control Channel, PDCCH, candidates; and transmitting, by the base station, control information to a user equipment over the PDCCH candidates in at least one of the plurality of sets of blind detection candidates; wherein the plurality of sets of blind detection candidates comprise a first set of blind detection candidates and a second set of blind detection candidates; and the base station transmits Downlink Control Information, DCI, to the user equipment over the PDCCH candidates in the first set of blind detection candidates with a prescribed data modulation scheme; and the base station transmits the DCI to the user equipment over the PDCCH candidates in the second set of blind detection candidates with a data modulation scheme determined by the base station; wherein the first set of blind detection candidates comprises all of PDCCH candidates in a common search space among enhanced PDCCHs; or all of PDCCH candidates in a common search space among enhanced PDCCHs and a part or all of PDCCH candidates in a UE-specific search space among enhanced PDCCHs; or a part or all of PDCCH candidates in a UE-specific search space among enhanced PDCCHs; and the second set of blind detection candidates comprises a part of PDCCH candidates in a UE-specific search space among enhanced PDCCHs.