BASE STATION/TERMINAL, METHOD AND DEVICE FOR SCRAMBLING/DESCRAMBLING PDCCH CHANNEL Russian patent published in 2018 - IPC H04W4/30 

FIELD: wireless communication equipment.

SUBSTANCE: invention relates to wireless communication. Present invention discloses a method of PDCCH scrambling. When the base station system supports the trunk data service, the method includes: scheduling a trunk data service or LTE data service according to a pre-established scheduling scheme; scrambling the PDCCH with the T-RNTI for the trunk data service in the trunk subframe and allocating the CCE resources using the first and the second preset levels of aggregation of CCE in the common search space and search space, allocated for a particular UE, respectively; scrambling the PDCCH with the C-RNTI for the LTE data service in the LTE subframe and allocating the CCE resources using the third and fourth preset levels of aggregation of CCE in the common search space and the allocated search space, respectively, the second and fourth preset levels of aggregation of CCE are completely different. PDCCH descrambling method is also disclosed in the present invention, in addition, a base station/terminal and a device for PDCCHs scrambling/descrambling for them are disclosed.

EFFECT: technical result is to reduce the complexity of the CCE search without notifying the terminal of the planning scheme in advance.

10 cl, 2 dwg