| Patent application number | Description | Published |
|---|
| 20080225816 | Interface, Apparatus, and Method for Communication Between a Radio Equipment Control Node and a Remote Equipment Node in a Radio Base Station - An interface, apparatus, and method are described for communication between a radio equipment control (REC) node and a radio equipment (RE) node in a radio base station that tranceives information over radio interface using multiple antenna carriers. The REC node is separate from and coupled to the RE node by a transmission link. Both control information and user information are generated for transmission over the transmission link from one of the REC node and the RE node to the other. Many advantageous interface features are described. | 09-18-2008 |
| 20100016034 | Power supply method and apparatus for radio access network nodes/sites - Nodes/sites of a radio access network have power utilization and power backup facilities and capabilities suitable for particularized node operation. Features of the nodes/sites and/or of the radio access network include power load control; intermittent charging of batteries; controlled (e.g., slow) charging of batteries; and multiple power backup banks. | 01-21-2010 |
| 20100069063 | Wireless Telecommunications Systems - A wireless telecommunications system is provided in which mobile terminals requiring high transmission power are identified as being potentially disturbing to neighbouring cells. Information relating to the identified mobile terminals is sent to the neighbouring basestation, so that resource allocation decision can be made using such information. | 03-18-2010 |
| 20100074349 | METHOD AND BASE STATION FOR ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SIGNAL PROCESSING - A method and base station for forming an OFDM signal from a baseband signal includes a partitioning unit configured to partition a block of baseband signal samples into sub-blocks. A sub-carrier mapper maps the sub-blocks onto adjacent sub-carrier blocks of an OFDM multi-carrier to form corresponding unprefixed OFDM symbols. A cyclic prefix adder adds a cyclic prefix to each mapped sub-block to form prefixed OFDM symbols. Phase compensations force the unprefixed OFDM symbol part of all subsequently up-converted prefixed OFDM symbols to start at the same phase. Up-converters up-convert the phase compensated prefixed OFDM symbols to respective radio frequency bands having center frequencies and bandwidths that preserve the OFDM multi-carrier structure. A combiner combines the up-converted phase compensated prefixed OFDM symbols into an OFDM signal. | 03-25-2010 |
| 20100136932 | METHOD AND A RADIO BASE STATION IN A TELECOMMUNICATIONS SYSTEM - The present invention relates to radio base stations including a standardized interface CPRI between a Radio Equipment (RE) and a Radio Equipment Controller (REC). The present invention also relates to a method. The problem addressed is how to convey calibration information from the RE to the REC, when the capacity is occupied by radio IQ samples. The solution is to suppress the IQ samples to get capacity for the calibration information. Various embodiments of the invention focus on reducing the negative impact the suppression of IQ data may have on detecting the signals received. | 06-03-2010 |
| 20100195501 | Method and Device for Power Reduction in an LTE System | 08-05-2010 |
| 20100317395 | Power Control in a Radio Base Station with Sustained Cell Radius - A method and apparatus is described herein for controlling the operating temperature of radio equipment ( | 12-16-2010 |
| 20110009157 | METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK - The present invention relates to a method and arrangement for reducing interference in a cellular communication network. A radio base station of the network is configured to serve at least a first cell, where interference is reduced by selecting a link adaptation scheme for a UE in the first cell, The arrangement comprises means for receiving measurements on estimated channel quality, means for estimating channel quality for a future transmission by adjusting the received measurements on estimated channel quality based on knowledge of future UE scheduling in at least the first cell, and means for selecting the link adaptation scheme comprising a transmit power level based on the estimated channel quality for the future transmission. | 01-13-2011 |
| 20110032910 | Interface, apparatus, and method for communication between a radio eqipment control node one or more remote radio equipment nodes - An interface, apparatus, and method are described for communication between a radio equipment control (REC) node and first and second radio equipment (RE) nodes in a radio base station that transceives information over radio interface using multiple antenna carriers. The REC node is separate from and coupled to the first RE node by a first transmission link, and the second RE node coupled to the first RE by a second transmission link. Both control information and user information intended for communication between the REC node and the first RE node and the REC and the second RE node are conveyed over the first transmission link. The first RE node also conveys information between the REC and second RE node. Many advantageous features are described. | 02-10-2011 |
| 20110275405 | METHOD AND ARRANGEMENT IN A COMMUNICATION SYSTEM - Method and arrangement in a first carrier controller, associated with a network node. The method aims at providing distributed power management of a plurality of power amplifiers within a sector. The first carrier controller, the network node and the power amplifiers are comprised within a communication system. Also, at least one further carrier controller is comprised within the communication system. The first carrier controller is arranged for scheduling power allocation at each power amplifier of the radio frequency power estimated to be used by at least one carrier controlled by the first carrier controller. The method comprises allocating the estimated power usage to be used by the at least one carrier controlled by the first carrier controller during a predetermined time frame on one or more power amplifiers within the same sector. The allocation is based on a priority value of each carrier, dedicated to that sector or to a power amplifier within that sector. | 11-10-2011 |
| 20130016623 | Method and a Device for Power Reduction in an LTE System - A method for use in a wireless communications system in which there is at least a first mode which controls the traffic to and from user terminals in a cell within the system, so that there is downlink traffic in the system. The first node transmits downlink traffic in radio frames, each of which comprises sub-frames. The first node performs measurements on pre-defined system indicators in at least said first cell, and based on the results of said measurements, the first node is allowed to autonomously decide to vary the number of available down link sub-frames used for down link traffic in said down link radio frames and also to vary the content of the down link sub frames which are used, said decision being valid for a time which is specified by the first node. | 01-17-2013 |
| 20130070726 | Method And Arrangement In A Wireless Communication System - The present invention relates to a method and a device for time synchronization of an RBS which has lost its GPS signal. The method in the time synchronization device comprises retrieving from the first radio base station a first timing advance value ( | 03-21-2013 |
| 20130136068 | Communication Systems and Methods in a Communication System - Communication systems and methods in a communication system for allocating an amount of baseband resource in one of a plurality of digital units to a radio unit serving a cell are provided. The methods include estimating the amount of the baseband resource to be allocated to the radio unit, identifying a digital unit of the plurality of digital units on which a neighbor radio unit, serving a neighbor cell, situated in a geographical vicinity of the cell is allocating baseband resource, determining that the digital unit has available baseband resource of the estimated amount, and if so, allocating the estimated amount of baseband resource in the digital unit to the radio unit. | 05-30-2013 |
| 20130258848 | METHOD AND ARRANGEMENT IN A DISTRIBUTED RADIO BASE STATION - In a method for use in a distributed radio base station, comprising a plurality of radio equipment nodes and an associated radio equipment control node, configuring at least one of the radio equipment nodes with a initial signal path configuration, and monitoring a traffic demand of a respective cell of each of the plurality of radio equipment nodes. Subsequently, determining an alternative signal path configuration for the at least one radio equipment node based on at least the monitored demand, and dynamically switching from the initial signal path configuration to the determined alternative signal path configuration. Finally, exchanging data between the radio equipment control node and the at least one radio equipment node based on the determined alternative signal path configuration. | 10-03-2013 |
| 20130294419 | METHODS AND NODES FOR RADIO COMMUNICATION WITH A USER EQUIPMENT - The present invention relates to a method in a radio equipment unit for downlink radio communication with a UE of a radio network. The radio equipment unit provides radio communication with UE in at least one cell, and is connected to a radio equipment control unit controlling the radio communication. The method comprises receiving ( | 11-07-2013 |
| 20140161438 | PROTECTION FOR DISTRIBUTED RADIO ACCESS NETWORKS - The invention relates to a distributed radio access network communicatively coupled to a core network, and a method for upholding a service in case of a failure in the distributed radio access network. The distributed radio access network comprises a main radio equipment controller communicatively coupled to at least one remote radio unit over a main optical path, a backup radio equipment controller communicatively coupled to the main radio equipment controller for synchronization, and a protection optical path for communicatively coupling the at least one remote radio unit to the backup radio equipment controller in case of a failure in communication between the main radio equipment controller and the at least one remote radio unit over the main optical path such that a service remains running when the failure occurs. | 06-12-2014 |
