摘要:
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.
摘要:
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.
摘要:
A radio base station (20) has an internal interface (26) connecting a radio equipment (RE) (24) and a radio equipment controller (REC) (22). The radio base station performs a pre-start-up procedure or method for the internal interface (26). The pre-start-up procedure is preformed preparatory to and/or in conjunction with a start-up procedure for the internal interface. As one of its aspects, the pre-start-up procedure involves storing one or more previously proven combinations of line bit rate and protocol as stored combination(s) for use on the internal interface. Prior to synchronization of the internal interface, the stored combination(s) are retrieved and included in a temporary available set of combinations of line bit rate and protocol. Thereafter the start-up procedure for the internal interface is initiated for the purpose of determining efficacy of the temporary available set. Should synchronization of the physical layer by the start-up procedure succeed, the pre-start-up procedure uses a valid combination of line bit rate and protocol in the available set for negotiating between the radio equipment controller (REC) and the radio equipment (RE). Should the start-up procedure fail, the pre-start-up procedure removes a failed combination of line bit rate and protocol from the set. In another of its aspects, the pre-start-up procedure classifies the temporary available set into plural subsets, each subset of the temporary available set containing combinations of line bit rate and protocol having a same line bit rate. The pre-start-up procedure separately initiates the start-up procedure for the internal interface for each subset. In another of its aspects, the pre-start-up procedure classifies the stored combinations as: (1) a best last time combination of line bit rate and protocol which was involved in a last successful execution of the start-up procedure; and (2) a union all combinations of line bit rate and protocol for which the synchronization of the physical layer has previously been successful during the start-up procedure. Capitalizing upon this classification, the pre-start-up procedure can use the best last time combination as the temporary available set for initiating the start-up procedure for the internal interface. Then, if the start-up procedure fails, the pre-start-up procedure can resort to using the union of all combinations as the temporary available set for initiating the start-up procedure for the internal interface.
摘要:
A radio base station (20) has an internal interface (26) connecting a radio equipment (RE) (24) and a radio equipment controller (REC) (22). The radio base station performs a pre-start-up procedure or method for the internal (26). The pre-start-up procedure is performed preparatory to and/or in conjunction with a start-up procedure for the internal interface. As on e of its aspects, the pre-start-up procedure involves storing one or more previously proven combinations of line bit rate and protocol as stored combination(s) for use on the internal interface. Prior to synchronization of the internal interface, the stored combination(s) are retrieved and included in a temporary available set of combinations of line bit rate and protocol. Thereafter the start-up procedure for the internal interface is initiated for the purpose of determining efficacy of the temporary available set. Should synchronization of the physical layer by the start-up procedure succeed, the pre-start-up procedure uses a valid combination of line bit rate and protocol in the available set for negotiating between the radio equipment controller (REC) and the radio equipment (RE). Should the start-up procedure fail, the pre-start-up procedure removes a failed combination of line bit rate and protocol from the set.
摘要:
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.
摘要:
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.
摘要:
The present invention relates to a base station and a method in a mobile telecommunication network for allocating and de-allocating uplink base station processing resources to a mobile terminal. The base station are adapted to communicate to a mobile terminal on an uplink channel supporting macro-diversity, and the base station is adapted to be a non-serving base-station without control of the resource allocation to the mobile-terminal. The base station comprises means for predicting a likelihood of successful decoding of a future transmission, and means for allocating or de-allocating processing resources based on said prediction.
摘要:
In cellular radio systems it is a problem to provide service to UE (user equipment) on the cell border. In systems that apply a frequency re-use of one, and OFDM access technology, the uplink direction need be improved. One embodiment of this application relates to a radio base station that is equipped with one or more FFT processor/s in addition to the FFT-processor that is adapted for being adjusted to the timed aligned arrival of signals from UE served by the radio base station. The additional FFT processor/s is adapted for being adjusted to the arrival of one or more signals from UE that are served by other radio base station/s. The radio base station is further adapted to send Fourier processed signal information relating to the UE of the other radio base station/s and thereby assist the other radio base station in signal reception. The application also relates to a method for assisting another radio base station in signal reception, and to a method for receiving assistance from another radio base station in signal reception.
摘要:
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 (610) from the radio equipment control unit: baseband processed user related data and information indicating a frequency radio resource allocated for a transmission to the UE. The method also comprises generating (620) cell defining signals for the cell of the UE, and transmitting (630) the generated cell defining signals added to the baseband processed user related data to the UE, using the indicated frequency radio resource. The present invention also relates to a corresponding method in the radio equipment control unit and to the units themselves.
摘要:
Disclosed herein are methods for using new energy-saving subframe structures, as well as corresponding apparatus that are configured to exploit these energy-saving subframes. In these energy-saving subframes, some, but not all, of the individual OFDM symbols in a subframe are inactive, meaning that no signal is transmitted during at least a part of the symbol time of the blanked symbols. An example method according to these techniques may be implemented in a radio transceiver, such as an LTE eNodeB, and comprises transmitting, in a first symbol time of a downlink subframe that comprises a plurality of symbol times, a codeword indicating that the downlink subframe includes at least one inactive symbol time. The method further includes transmitting data during at least one but fewer than all of the remaining ones of the plurality of symbol times in the downlink subframe. Corresponding techniques for receiving the energy-saving subframes are also disclosed.