Abstract:
A communication device, method, and system generate wireless communication signals that include a subframe within a radio frame. The subframe includes an extension control area in a data area of the subframe. The extension control area is set according to a periodic mapping pattern.
Abstract:
The present invention relates to a method and an apparatus for a user equipment receiving MBMS service processing a semi-permanent scheduling from an MBSFN subframe. A method for a user equipment receiving the multimedia broadcast multicast service (MBMS) processing a downlink scheduling in a mobile communication system of the present invention comprises: a detection step of detecting the occurrence of the downlink scheduling in a random transmission time interval; a decision step of deciding whether to process the downlink scheduling, depending on whether the user equipment is set to a transmission mode 9 or whether the transmission time interval belongs to a multimedia broadcast multicast service single frequency network (MBSFN) subframe; and a processing step of processing or disregarding the downlink scheduling based on the result of the decision.
Abstract:
The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for transmitting uplink control information when TDD and a plurality of cells are configured, and comprises the following steps: receiving one or more of at least one PDCCH signal and at least one PDSCH signal; generating for each of the cells reception reply information on one or more of the at least one PDCCH signal and the at least one PDSCH signal; and transmitting the reception reply information for each of the plurality of cells which are connected.
Abstract:
본 발명은 무선 통신 시스템에 관한 것이다. 구체적으로, 본 발명은 TDD 및 복수의 셀이 구성된 상황에서 상향링크 제어 정보를 전송하는 방법 및 이를 위한 장치에 있어서, 하나 이상의 PDCCH 신호 및 하나 이상의 PDSCH 신호 중 적어도 하나를 수신하는 단계; 상기 하나 이상의 PDCCH 신호 및 하나 이상의 PDSCH 신호 중 적어도 하나에 대한 수신 응답 정보를 셀 별로 생성하는 단계; 및 연접된 복수의 셀 별 수신 응답 정보를 전송하는 단계를 포함하는 방법 및 이를 위한 장치에 관한 것이다.
Abstract:
A wireless network comprising a first base station operable to communicate with mobile stations and a plurality of relay stations for providing bi-directional communication between the first base station and a plurality of mobile stations. The first base station transmits a relay physical downlink control channel (R-PDCCH) in the downlink to the plurality of relay stations. The R-PDCCH comprises: i) a first search space comprising downlink (DL) grants associated with the plurality of relay stations; and ii) a second search space comprising uplink (UL) grants associated with the plurality of relay stations.
Abstract:
Embodiments of the present invention relate to a wireless communication system, and more particularly, to a technology for allocating a Channel State Information-Reference Signal (CSI-RS) in a wireless communication system. Embodiments of the present invention provides an apparatus and method for allocating CSI-RSs to resource areas, in which, under the condition of a subframe in which the CP is an extended CP, and the duplex scheme is TDD, if CSI-RSs for maximum 8 antenna ports are allocated, the CSI-RSs are allocated to the 8 th and 9 th symbols (symbol No. l = 7 and 8), wherein each CSI-RS for every two antenna ports is allocated to the same RE while being discriminated from each other by an orthogonal code and neighbor CSI-RS allocated REs in the frequency aixs are spaced by an interval of three REs.
Abstract:
An apparatus for wireless communication may allocate resources for multicarrier wireless communication. The apparatus may be enabled for cross-carrier signaling and semi-persistent scheduling on at least one carrier. Semi-persistent scheduling may be enabled by deriving a resource, such as a PHICH resource, for uplink HARQ operation using at least part of a demodulation reference signal field. The resource may be chose to reduce PHICH collision and may be based on a starting physical block of uplink data transmission. Cross-carrier signaling may be enabled by an information field, such as a carrier indicator field in the PDCCH, not enabled when cross-carrier signaling is not enabled.
Abstract:
Certain aspects of the present disclosure provide techniques and apparatuses for providing an expanded search space for a relay-specific control channel on a backhaul link. According to certain aspects, due to inband interference, a Relay Physical Downlink Control Channel (R-PDCCH) may be signaled utilizing resources reserved for backhaul data. According to certain aspects, a two-dimensional search space may be provided for R-PDCCH. R-PDCCH may be transmitted in one of a plurality of layer-specific search spaces corresponding to one of a plurality of antenna ports. Further, in a layer-specific search space, R-PDCCH may be transmitted using at least one of multiple R-PDCCH decoding candidates from a common search space and/or a relay node-specific search space.
Abstract:
Disclosed herein are methods and apparatus for network energy savings in a wireless communication system, such as the 3GPP LTE system. Particularly, one such method reduces power consumption in a base station by selectively muting or disabling downlink transmissions of certain control signal symbols in one or more subframes or frames. The disclosed methods and apparatus can apply independently or in combination in both FDD and TDD systems.