Patent application number | Description | Published |
20120329467 | Network Node, User Equipment and Methods Therein for Configuring Cells for Downlink Operations - A method in a network node ( | 12-27-2012 |
20130010710 | METHODS, USER EQUIPMENTS AND RADIO NETWORK CONTROLLERS IN A WIRELESS NETWORK FOR CONTROLLING DOWNLINK COMMUNICATION - The present disclosure relates to a method in a user equipment ( | 01-10-2013 |
20130034014 | RLC STATUS REPORTING FOR EIGHT-CARRIER HSDPA - Techniques for signaling radio link control (RLC) status reports to a wireless network, such as a network supporting multi-carrier High-Speed Downlink Packet Access (HSDPA). An example method performed in a mobile terminal comprises calculating a throughput estimate data transmissions to the mobile terminal, determining a rate at which to send radio link control status reports, based on the throughput estimate, and sending radio link control status reports to the wireless network node at the determined rate. In some embodiments, the mobile terminal determines the rate at which to send radio link control status reports by comparing the throughput estimate to a threshold value and selecting the rate based on the comparison. The threshold value may be received from the wireless network node prior to the comparison. | 02-07-2013 |
20130039208 | Method for Setting and Adjusting a Parameter Dependent on a Round Trip Time - An arrangement ( | 02-14-2013 |
20130070609 | Ensuring Reception Quality for Non-Adjacent Multi-Carrier Operation - User equipment ( | 03-21-2013 |
20130250747 | Method and Apparatus Relating to HARQ Processes - A method in a radio receiver arrangement for receiving data blocks of radio signalling. The method comprises receiving a plurality of data blocks over a radio interface from a transmitting side. The method also comprises applying a single hybrid automatic repeat request (HARQ) process to the plurality of data blocks, whereby it is determined that at least one of the plurality of data blocks has been received ok and that at least one of the plurality of data blocks has not been received ok. The method also comprises generating a negative acknowledgement (NAK) for the plurality of data blocks in response to the at least one of the plurality of data blocks having not been received ok. The method also comprises outputting, from the receiver arrangement, at least one symbol obtained from the at least one of the plurality of data blocks which has been received ok. | 09-26-2013 |
20140044028 | RETRANSMISSION METHODS INCLUDING DISCONTINUOUS TRANSMISSION AND RELATED DEVICES - A method of operating a node of a radio access network may include transmitting first and second data blocks from the radio access network over respective first and second MIMO layers of a MIMO wireless channel to a wireless terminal during a first TTI. Responsive to receiving a NACK message for the second data block, downlink signaling for a second TTI may be transmitted from the radio access network to the wireless terminal with the downlink signaling including a DTX indicator for the first MIMO layer and a retransmission data indicator for the second MIMO layer. Responsive to receiving the NACK message for the second data block, the second data block may be retransmitted from the radio access network over the second MIMO layer to the wireless terminal during a second TTI. | 02-13-2014 |
20140044060 | METHODS OF RECEIVING RETRANSMISSIONS INCLUDING DISCONTINUOUS TRANSMISSION INDICATORS AND RELATED DEVICES - A wireless terminal may receive downlink signaling over a downlink signaling channel from a base station, with the downlink signaling including a DTX indicator for a first downlink MIMO layer and a retransmission data indicator for a second downlink MIMO layer. Soft bits for the second MIMO layer may be generated for a TTI corresponding to the downlink signaling, and the soft bits may be decoded. After decoding the soft bits, an ACK message for the second MIMO layer may be transmitted responsive to success decoding the soft bits or a NACK message for the second MIMO layer may be transmitted responsive to failure decoding the soft bits, and a default response may be transmitted for the first MIMO layer for the TTI. | 02-13-2014 |
20140044206 | METHODS OF MAPPING RETRANSMISSIONS RESPONSIVE TO BUNDLED NACK MESSAGES AND RELATED DEVICES - A method of transmitting data from a network node to a wireless terminal may include transmitting first and second data blocks over respective first and second MIMO layers to the wireless terminal during a first MIMO transmission time interval (TTI). Feedback may be received from the wireless terminal for the first MIMO TTI with the feedback including first and second ACK-NACK codewords that map to the respective first and second MIMO layers. Responsive to the network node being transmit buffer limited for the wireless terminal and responsive to the first ACK-NACK codeword being an ACK and the second ACK-NACK codeword being a NACK, a discontinuous transmission indicator for the first MIMO layer may be transmitted to the wireless terminal, and the second data block may be retransmitted over the second MIMO layer to the wireless terminal during a second MIMO TTI after transmitting the discontinuous transmission indicator. | 02-13-2014 |
20140056238 | METHOD AND BASE STATION FOR CONTROLLING TRANSMISSION OF DATA STREAMS TO USER EQUIPMENTS IN A WIRELESS COMMUNICATION SYSTEM - Disclosed is a base station ( | 02-27-2014 |
20140064392 | METHODS OF SELECTING MIMO RANKS AND RELATED DEVICES - A method of operating a wireless network node may include transmitting a first MIMO downlink communication to a wireless terminal according to a first MIMO rank, and receiving at least one HARQ ACK/NACK, message from the wireless terminal corresponding to the first MIMO downlink communication. A report may be received from the wireless terminal identifying a reported MIMO rank, and a second MIMO rank may be selected for a second MIMO downlink communication responsive to the at least one HARQ ACK/NACK message. The second MIMO downlink communication may be transmitted to the wireless terminal according to the second MIMO rank. | 03-06-2014 |
20140064400 | SYSTEMS AND METHODS FOR REPORTING PILOT SIGNAL POWER INFORMATION IN A FOUR BRANCH MIMO SYSTEM - A base station ( | 03-06-2014 |
20140126551 | METHODS OF MAPPING RETRANSMISSIONS RESPONSIVE TO BUNDLED NACK MESSAGES AND RELATED DEVICES - A method of operating a node of a MIMO network may include transmitting first and second HARQ IDs over a downlink signaling channel to a wireless terminal for a first MIMO TTI. The first HARQ ID is mapped to a first MIMO layer, and the second HARQ ID is mapped to second and third MIMO layers. First, second, and third data blocks are transmitted over the first, second, and third MIMO layers to the wireless terminal for the first MIMO TTI. Responsive to receiving an ACK message associated with the first HARQ ID, a fourth data block is transmitted over the first MIMO layer to the wireless terminal for a second MIMO TTI. Responsive to receiving a NACK message associated with the second HARQ process identification, the second and third data blocks are retransmitted over the second and third MIMO layers to the wireless terminal for the second MIMO TTI. | 05-08-2014 |
20140133471 | METHODS AND DEVICES RELATING TO MIMO COMMUNICATIONS - Methods and devices supporting MIMO transmission/reception are discussed. For example, first and second data blocks may be transmitted/received respectively using first and second transmission/reception layers during a first TTI for rank two transmission/reception. A first HARQ process may be mapped to the first data block of the first layer for the first TTI. A second HARQ process may be mapped to the second data block of the second layer for the first TTI. Third, fourth, and fifth data blocks may be transmitted/received respectively using the first and second layers and using a third transmission/reception layer during a second TTI for rank three transmission/reception. The first HARQ process may be mapped to the third data block of the first layer for the second TTI. The second HARQ process may be mapped to the fourth and fifth data blocks of the second and third layers for the second TTI. | 05-15-2014 |
20140177526 | MIMO System - Improved performance of downlink data transmission in a high speed downlink packet access, HSDPA, mobile communication system is described. Rank information, RI, and channel quality information, CQI, is obtained in a radio base station from a user equipment, UE, and this rank and CQI information is used in a medium access control-ehs, MAC-ehs, entity for determining a transport format and resource combination, TFRC, on a downlink channel. | 06-26-2014 |
20140245095 | METHODS OF COMMUNICATING DATA INCLUDING SHARED ACK/NACK MESSAGES AND RELATED DEVICES - A method of transmitting data from a wireless network node over a MIMO channel to a wireless terminal may include transmitting first and second transport data blocks to the wireless terminal over the MIMO channel using a first time-frequency-resource-element (TFRE). Responsive to receiving a NACK message from the wireless terminal corresponding to the first and second transport data blocks transmitted using the first TFRE, the first and second transport data blocks may be retransmitted to the wireless terminal over the MIMO channel using a second TFRE. | 08-28-2014 |
20140328259 | SYSTEMS AND METHODS FOR DETERMINING MEASUREMENT POWER OFFSETS - Disclosed herein, among other things, is a method performed by a user equipment (UE) for providing to a network channel station information (CSI). The method comprises: receiving from the network two measurement power offsets, a first measurement power offset and a second measurement power offset; selecting one of said two measurement power offsets; computing CSI using the selected measurement power offset; and transmitting to the network the determined CSI. | 11-06-2014 |
20150038157 | Network Node, User Equipment and Methods Therein for Configuring Cells for Downlink Operations - A network node, user equipment, and corresponding methods can support non-contiguous cell configuration of the downlink in at least one frequency band of a telecommunications system. The network node configures cells for non-contiguous downlink operations based on a signal received from a user equipment. The signal comprises information about the user equipment's radio access capability in non-contiguous downlink operation, including: a first indication that indicates the maximum number of cells supported by the user equipment; a second indication that indicates the maximum gap bandwidth between cells supported by the user equipment; and a third indication that indicates whether the user equipment supports an equal number of cells, or a different number of cells, on each side of a gap between the maximum number of cells. | 02-05-2015 |
20150071112 | DISTRIBUTED NODE OPERATION IN HETEROGENEOUS NETWORKS - Systems and methods related to providing spatial reuse gain as well as Multiple-Input-Multiple-Output (MIMO) gains in a combined cell of a heterogeneous cellular communications network are disclosed. In one embodiment, a method of operation of a wireless device includes receiving node-specific pilot signals from transmission nodes in a combined cell, where each node-specific pilot signal is transmitted by a different transmission node in the combined cell. The method further includes generating channel measurements based on the node-specific pilot signals. The channel measurements include a separate channel measurement for each transmission node based on the node-specific pilot signal transmitted by the transmission node. The method further includes selecting a desired combination of nodes from the subset of the transmission nodes based directly or indirectly on the channel measurements and providing an indication of the desired combination of nodes to the central control node for the combined cell. | 03-12-2015 |