Patent ID: 9173214
Filing Date: 2015-10-27
Classification: H04L,H04W

Abstract:
1. A method, applied in a user equipment of a multi-carrier wireless communication system, of determining a scheduled component carrier, the method comprising: the user equipment detecting scheduling information transmitted from a base station in a first dedicated search space corresponding to a scheduling component carrier, wherein the first dedicated search space comprises at least one candidate physical downlink control channel; detecting the at least one candidate physical downlink control channel for obtaining a current physical downlink control channel belonging to the user equipment; determining the scheduled component carrier corresponding to the current physical downlink control channel according to a location of the current physical downlink control channel and a value of a carrier indicator field carried therein; determining a group of search spaces corresponding to the current physical downlink control channel by the location of the current physical downlink control channel, wherein all search spaces corresponding to the location of a same candidate physical downlink control channel at a same aggregation level of the physical downlink control channel constitute a same group of search spaces; and determining a second dedicated search space to which the current physical downlink control channel belongs in the group of search spaces by the value of the carrier indicator field, wherein the second dedicated search space is a search space corresponding to the scheduled component carrier, and the value of the carrier indicator field represents a number of reoccurrences of the location of the physical downlink control channel in each of search spaces, in a case that search spaces of different component carriers are designed as per a size of the second dedicated search space of the current physical downlink control channel and a total number of available control channel elements.