Abstract:
The objective of the invention is to suppress, in a case of applying the RRH system in an environment having a plurality of cells (multi-cellular environment), the reduction of the throughput of the whole system. A base station, in the RRH system in which a plurality of antenna ports are dispersively placed in each of a plurality of cells, comprises: a selection unit that selects antenna ports, to which user terminals are to connect, from among the antenna ports of the cells in which the user terminals are existent; and a power setting unit that controls the transmission powers of the antenna ports. The selection unit and power setting unit set predetermined conditions for the target SINRs(t) of the user terminals and the transmission powers of the antenna ports, and select the antenna ports for the user terminals and control the transmission powers of the antenna ports such that the smallest one of the values of the SINRs of the user terminals of the plurality of cells is maximized.
Abstract:
According to various embodiments, a radio communication device may be provided. The radio communication device may include: a transmitter configured to transmit a null data packet. The null data packet may include acknowledgement data indicating acknowledgements for a plurality of packets. The null data packet may include a cyclic redundancy check field configured to provide information based on which the null data packet or acknowledgements may be checked for errors. The null data packet may include further information based on which the acknowledgements may be checked for errors.
Abstract:
According to various embodiments, a communication method may be provided. The communication method may include at least one of sending a data unit or receiving a data unit. The data unit may include or may be a poll type field indicating one of a plurality of requests from a mobile radio communication device to an access point with respect to at least one of transmission of buffered data from the access point to the mobile radio communication device or a timing of communication between the access point and the mobile radio communication device.
Abstract:
According to various embodiments, a mobile radio communication device may be provided. The mobile radio communication device may include: a receiver configured to receive data; an access point identification circuit configured to determine whether the received data is received from or sent to an access point corresponding to the mobile radio communication device; and a response indication deferral setting circuit configured to set a response indication deferral parameter based on the determination of the access point identification circuit.
Abstract:
The present invention is directed to a compression device including an identifier determination circuit configured to determine a first identifier value identifying a first communication terminal of a network, and a second identifier value identifying a second communication terminal of the network; a differential determination circuit configured to determine a differential value based on a difference between the first identifier value and the second identifier value; and a compressed string generation circuit configured to insert the differential value into a compressed string. A compression method, a decompression device and a decompression method are also disclosed.
Abstract:
According to various embodiments, an access point may be provided. The access point may include: a transmitter configured to transmit restricted access window parameters. The restricted access window parameters may include at least one parameter selected from a list of parameters consisting of: a type parameter indicating which type of restricted access window parameters is represented by the restricted access window parameters; a same group indicator parameter indicating whether a group field is present; and a channel indication presence parameter indicating whether a channel indication is present.