摘要:
A device (110) receives consecutive negative acknowledgments (NACKs) (540), measures a downlink channel quality (530) associated with the device (110), and triggers autonomous retransmission (430) when power is limited in the device (110), when the device (110) is using a minimum usable enhanced dedicated channel (E-DCH) transport format combination (ETFC), and when one of a number of consecutive NACKs (540) is greater than a predefined number, or the measured downlink channel quality (530) is less than a predefined threshold.
摘要:
A device (110) receives consecutive negative acknowledgments (NACKs) (540), measures a downlink channel quality (530) associated with the device (110), and triggers autonomous retransmission (430) when power is limited in the device (110), when the device (110) is using a minimum usable enhanced dedicated channel (E-DCH) transport format combination (ETFC), and when one of a number of consecutive NACKs (540) is greater than a predefined number, or the measured downlink channel quality (530) is less than a predefined threshold.
摘要:
In a method of allocating power to data streams in a communication system, providing (S10) CQI for each of a plurality of data streams between a radio base station node and a user equipment node in the system. Subsequently, allocating (S20) transmit power to each of the plurality of data streams based at least on the provided respective CQI, and determining coding and modulation (S30) for the data streams based on at least the allocated power.
摘要:
The present invention relates to an arrangement, a communication network node and method for cell outage compensation in a communication network system comprising a plurality of communication network nodes (15a, 15b) communicating with user equipments (18), where each network node (15a, 15b) is serving at least one cell (19a, 19b), in which the user equipments (18) are situated, via two or more reconfigurable physical antennas (15a1, 15a2, 15b1, 15b2) configured according to an initial antenna parameter set. Cell outage is determined in a network node (15b). One of the reconfigurable physical antennas (15a2) of at least one cell (19a) is made temporarily available for compensation. The available antenna (15a2,) is prepared for compensation by reconfiguring one or more antenna parameters thereof in accordance with a compensating antenna parameter set. A new compensating cell (20) is transmitted from the prepared antenna (15a2). Upon cell recovery the compensating cell (20) is removed and the reconfigurable physical antennas (15a2) of the compensating cell (20) returned to the initial antenna parameter set.
摘要:
Embodiments herein relate to a radio network node for scheduling a radio resource within a radio communications network. The radio network node comprises at least two antenna ports over which communication is performed using a respective power amplifier over each antenna port out of the at least two antenna ports. The radio network node determines a utilization factor of power of each power amplifier when a first user equipment is assigned to the radio resource. The radio network node further determines a utilization factor of power of each power amplifier when a second user equipment is assigned to the radio resource. The radio network node then schedules the first user equipment or the second user equipment to the radio resource based on the determined utilization factors.
摘要:
The present invention relates to a wireless communication node (20A) adapted to via feeder ports be connected to antenna ports. It comprises signal handling and estimating means (21A) adapted to collect signals from a mobile station and to generate a plurality of channel estimates, connection combination information holding means (22A) adapted to hold information about all possible feeder port-antenna port connections, processing means (24A) comprising channel modelling means (23A) adapted to provide a channel model for the received signals. If further comprises channel model fitting means (25A) adapted to compare the channel model with the channel estimates for a plurality of permutations obtained by the connection combination information and order identifying means (26A) adapted to identify the feeder port connection order corresponding to the permutation order giving the best fit between channel model and channel estimates, hence allowing identification of the order in which the feeder ports actually are connected to the antenna ports.
摘要:
A method for signalling in a MIMO system. The system comprises a base station (BS) and at least one relay station (RS) operating in half duplex realized using Time Division Duplex. The BS and the RS distribute channels to at least one mobile station (MS). The method is particularly characterized in the steps where: —the BS selects at least one RS which is served during a first time slot (TS1), and selects at least one MS which is served during a second time slot (TS2), —the BS creates channels during T1 to said RS, —the BS and said RS create channels during T2 to said MS.
摘要:
Embodiments herein relate to a radio network node for scheduling a radio resource within a radio communications network. The radio network node comprises at least two antenna ports over which communication is performed using a respective power amplifier over each antenna port out of the at least two antenna ports. The radio network node determines a utilization factor of power of each power amplifier when a first user equipment is assigned to the radio resource. The radio network node further determines a utilization factor of power of each power amplifier when a second user equipment is assigned to the radio resource. The radio network node then schedules the first user equipment or the second user equipment to the radio resource based on the determined utilization factors.
摘要:
The invention discloses a transceiver (210, 215; 305, 310, 320, 330) for use in a cellular communications system (200, 300), arranged to communicate with at least one other transceiver in the system by means of technology for Multiple Input Multiple Output, MIMO. The transceiver is also arranged to control the function of a repeater (206, 207, 208, 209; 340) which is arranged to forward communication between the transceiver and said at least one other transceiver, said control being carried out as a result of measured performance parameters of the communication between the transceiver and said at least one other transceiver. In one embodiment, the function in the repeater (206, 207, 208, 209; 340) which the transceiver is arranged to control comprises activation and deactivation of the repeater.
摘要:
The present invention relates to a node (1) in a wireless communication network, the node (1) comprising at least one antenna arrangement (2, 3, 4). Each antenna arrangement (2, 3, 4) comprises at least two spatially separated antenna functions (5, 6, 7, 8) and is arranged to communicate with a corresponding plurality of user terminals (9, 10, 11, 12) and also to receive information from each one of said user terminals (9, 10, 11, 12). Said information comprises data enabling the node (1) to control beamforming for each antenna arrangement (2, 3, 4) towards said user terminals (9, 10, 11, 12).The node (1) further comprises a control unit (13) that is arranged to analyze said data and, from the analysis of said data, to determine how said user terminals (9, 10, 11, 12) are distributed within a certain angular span (14) for each antenna arrangement (2, 3, 4). The present invention also relates to a corresponding method.