Patent application number | Description | Published |
20090046649 | Mapping of uplink ACK in TDD with asymmetric frame structure - For each of at least two ratios of downlink subframes exceeding uplink subframes in a frame is stored a pre-determined grouping of a plurality of downlink subframes that map to one uplink subframe. A frame is scheduled corresponding to one of the ratios. Scheduling grants are transmitted to user equipments UEs in at least some of the scheduled downlink subframes, wherein the number of scheduled downlink subframes is greater than the number of scheduled uplink subframes in the frame. The UEs receive their grant, map the downlink subframe in which the scheduling grant was received to an uplink subframe using the stored predetermined grouping for the ratio that corresponds to the frame in which the scheduling grant was received, and send their ACK/NACK for the grant in the mapped subframe. The network receives multiple ACKs/NACKs in a single uplink subframe and maps them, to the downlink subframes of the group. | 02-19-2009 |
20090323617 | METHOD AND APPARATUS FOR PROVIDING ACKNOWLEDGMENT BUNDLING - An approach is provided for acknowledgement bundling. Dynamically scheduling of one or more of subframes per bundling window is performed by reusing an assignment index field (e.g., downlink assignment index (DAI) field). The assignment index field has a value greater than or equal to number of previously assigned subframes within the bundling window. The bundling window defines a group of subframes for common acknowledgement. | 12-31-2009 |
20100027495 | Method and Apparatus for Providing Acknowledgment Signaling - An approach is provided for designating a predetermined number of acknowledgment channels corresponding to transmission channels utilized by a plurality of user equipment. Each of the acknowledgement channels provides signaling to indicate success or failure of a transmission over a respective one of the transmission channels. The approach is also provided for generating a message to map the acknowledgement channels with the transmission channels. | 02-04-2010 |
20110038344 | APPARATUS AND METHOD FOR INITIALIZATION AND MAPPING OF REFERENCE SIGNALS IN A COMMUNICATION SYSTEM - An apparatus and method for initialization and mapping of reference signals in a communication system. In one embodiment, the apparatus includes a processor and memory including computer program code. The memory and the computer program code are configured to, with the processor, cause the apparatus to generate a reference signal employable with a plurality of physical resource blocks corresponding to a bandwidth of a communication system, and allocate resource elements of an assigned physical resource block from the plurality of physical resource blocks to a user equipment. The memory and the computer program code are further configured to, with the processor, cause the apparatus to generate a dedicated reference signal for the user equipment by allocating elements of the reference signal in accordance with allocated resource elements of the assigned physical resource block. | 02-17-2011 |
20140010146 | Methods and Apparatuses For Transmitting Downlink Control Signaling On Wireless Relay Link - In accordance with an example embodiment of the present invention, a method comprises allocating a control channel resource in a wireless relay transmission frame on a wireless relay link; generating a control signaling based on at least one of a resource allocation scheme, a status of the wireless relay link and a traffic condition of the wireless relay link; mapping the control signaling to the allocated control channel resource via at least one of a time-first mapping, a frequency-first mapping, and a multiplexing mapping; and transmitting the control signaling in the allocated control channel resource on the wireless relay link to at least one associated relay node. | 01-09-2014 |
20140254468 | Downlink Control Signaling for a Backhaul Link - In one exemplary embodiment of the invention, a method includes: sending, within at least one of a first and a second symbol time, a first transmission having first downlink control information from a network access node to a first mobile node located within a first cell serviced by the network access node; and sending, within at least a third symbol time, a second transmission having second downlink control information from the network access node to a relay node over a wireless communication link that is a backhaul link, where the second transmission is configured to enable the relay node to send, within the first symbol time, a third transmission having third downlink control information from the relay node to a second mobile node located within a second cell serviced by the relay node, where the second cell is different from the first cell. | 09-11-2014 |
20140301280 | METHOD AND APPARATUS FOR PROVIDING ACKNOWLEDGEMENT BUNDLING - An approach is provided for acknowledgement bundling. Dynamically scheduling of one or more of subframes per bundling window is performed by reusing an assignment index field (e.g., downlink assignment index (DAI) field). The assignment index field has a value greater than or equal to number of previously assigned subframes within the bundling window. The bundling window defines a group of subframes for common acknowledgement. | 10-09-2014 |
20150271803 | CONTROL SIGNALING FOR WIRELESS COMMUNICATION - In accordance with an example embodiment of the present invention, a method comprises allocating a control channel resource in a wireless relay transmission frame on a wireless relay link; generating a control signaling based on at least one of a resource allocation scheme, a status of the wireless relay link and a traffic condition of the wireless relay link; mapping the control signaling to the allocated control channel resource via at least one of a time-first mapping, a frequency-first mapping, and a multiplexing mapping; and transmitting the control signaling in the allocated control channel resource on the wireless relay link to at least one associated relay node. | 09-24-2015 |