摘要:
Channel selection for LTE-Advanced, or other, carrier aggregation can be performed by a method, apparatus, or computer-readable medium. According to certain embodiments, a method can include determining that channel selection and constellation selection are in use or to be used. The method can also include determining that a single mapping table design for channel selection for up to four bits is in use or to be used. The method can further include selecting a communication resource from resource entries corresponding to acknowledgment and negative acknowledgment states based on the determining that channel selection and constellation selection are in use or to be used and the determining that the single mapping table design for channel selection for up to four bits is in use or to be used.
摘要:
A method comprising: sending information from a first node to a second node, said first node comprised in a first layer and said second node comprised in a second layer of a layered network, receiving at said first node channel information from said second node; and using said channel information for antenna calibration at said first node.
摘要:
In accordance with exemplary embodiments of the invention there is at least an apparatus to perform a method including dividing, by a network device, a control part of a physical domain resource corresponding to one or more subframes into logical resources; reserving a first portion of the logical resources for control signaling; and reserving a second portion of the logical resources for a transmission request; reserving a third portion of the logical resources for interference information. In accordance with exemplary embodiments of the invention there is at least an apparatus to perform a method including controlling receiving a control part of a physical domain resource corresponding to one or more subframes, wherein the control part is divided into logical resources, wherein a first portion of the logical resources is reserved for control signaling, wherein a second portion of the logical resources is reserved for a transmission request, and wherein a third portion of the logical resources is reserved for interference information.
摘要:
A method for synchronizing communication devices comprises receiving, in a communication device (102), a first synchronization signal transmitted from a network apparatus (101). Based on the first synchronization signal, communication device (102) performs a coarse synchronization process. Based on the coarse synchronization process, the communications device (102) transmits a scheduling request message to the network apparatus (101). The communication device (102) receives (306), from the network apparatus (101), a second synchronization signal, together with a scheduling grant, at a predetermined time window with reference to the scheduling request, and transmits (307) data from the communication device (102) to the network apparatus (101), based on the scheduling grant.
摘要:
A technique comprising: controlling a radio device of a first cell to transmit information identifying one or more radio resources allocated to both downlink and uplink transmissions of a type of reference signal in said first cell; and controlling said radio device to transmit said type of reference signal in said first cell using said one or more radio resources; wherein the one or more radio resources are excluded from use for transmission of said type of reference signal in one or more other interfering cells.
摘要:
The present solution discloses a method and apparatus for controlling demodulation reference signal allocation of a user equipment by utilizing a cyclic shift subset determined for demodulation reference signal multiplexing orders supported by the user equipment. Within the cyclic shift subset, demodulation reference signal resources that cause the most significant interference to each other are identified, and cyclic shifts corresponding to the identified demodulation reference signal resources, are linked with as orthogonal complementary multiplexing resources as possible. If more than one cyclic shift subsets are determined for a demodulation reference signal multiplexing order, at least one cyclic shift subset is ignored for said demodulation reference signal multiplexing order.
摘要:
There is provided a mechanism for controlling a procedure for requesting resources for a communication in a communication network by a terminal device or UE. When the UE has selected a target cell from a plurality of communication cells, such as local area cells, a message such as a resource request comprising information indicating an identity of the requesting UE and information indicating an identity of the target cell from which resources are requested is prepared and transmitted, for example via communication resources reserved for a transmission of the message. A controller of a cell, such as an eN B or a LA node, scans the reserved resources for receiving a message such as the resource request from a UE. The message is decoded by using identification information of the own cell and identification information of UEs being valid in the own cell. Then, it is determined whether the received message indicates as the target cell the own cell, and whether the UE is a known UE allocated to the own cell. Based on this determination, the message such as the resource request is processed or another cell is informed thereabout.
摘要:
A frame or a subframe comprising control information and data is transmitted using orthogonal frequency division multiple access (OFDMA). At least one different OFDMA parameter and/or format is applied to said control information than to said data. At a receiver the frame or subframe is processed by taking into account the application of the at least one different OFDMA parameter and/or format.