Determination of enhanced physical downlink control channel candidates in a wireless communication network

摘要

In embodiments, an evolved Node B (eNB) of a wireless communication network may configure an enhanced physical downlink control channel (EPDCCH) physical resource block (PRB) set for a user equipment (UE). The EPDCCH-PRB set may include a plurality of PRB-pairs. The EPDCCH-PRB set may further include a plurality of enhanced resource element groups (EREGs) organized into localized enhanced control channel elements (ECCEs) having EREGs of the same PRB-pair and distributed ECCEs having EREGs of different PRB-pairs. In some embodiments, the eNB may determine a set of distributed EPDCCH candidates for the UE from the EPDCCH-PRB set, wherein the individual distributed EPDCCH candidates include one or more of the distributed ECCEs, and wherein the set of distributed EPDCCH candidates includes at least one EREG from each of the plurality of localized ECCEs. Other embodiments may be described and claimed.

主权项

1. An apparatus to be employed by an evolved Node B (eNB), the apparatus comprising:
communications circuitry to communicate with a user equipment (UE) over a wireless communication network; and control circuitry, coupled to the communications circuitry, to:
configure, for the UE, a first enhanced physical downlink control channel (EPDCCH)-physical resource block (PRB) set including a plurality of PRB-pairs, wherein the first EPDCCH-PRB set is configured as a distributed EPDCCH-PRB set having distributed enhanced control channel elements (ECCEs) that include enhanced resource element groups (EREGs) spread among the plurality of PRB-pairs; and determine, based on a search space equation, a set of distributed EPDCCH candidates for the UE from the PRB-pairs of the first EPDCCH-PRB set, wherein the individual distributed EPDCCH candidates include one or more of the distributed ECCEs, and wherein the different distributed EPDCCH candidates of the set of distributed EPDCCH candidates are first mapped to distributed ECCEs including EREGs of different localized ECCEs of the PRB-pairs, and then mapped to distributed ECCEs including EREGs of a same localized ECCE as another distributed EPDCCH candidate; configure, for the UE or another UE, a second EPDCCH-PRB set including a plurality of PRB-pairs that are fully overlapped, partially overlapped, or fully non-overlapped with the PRB-pairs of the first EPDCCH-PRB set, wherein the second EPDCCH-PRB set is configured as a localized EPDCCH-PRB set including a plurality of localized ECCEs having EREGs of a same PRB-pair; and determine, based on the search space equation, a set of localized EPDCCH candidates for the UE or the another UE from the second EPDCCH-PRB set.