摘要:
A method for power measurements in a cellular communication system comprises receiving measurement configuration orders. Operation of a power meter is controlled in dependence on the measurement configuration orders. Reference signal received powers are measured. A measurement report is compiled and transmitted. The measurement configuration orders comprise cell status information associated with neighbouring cells and measurement instructions that are dependent of the cell status of respective cell. The cell status information comprises information about whether the neighbouring cell is of a different type than the serving cell. Controlling of the operation of the power meter and/or compiling of the measurement report is performed in dependence on the cell status of the neighbouring cell. A method for handover based on such measurement reports is also disclosed as well as Node Bs and user equipments configured to perform such methods.
摘要:
A method and apparatus for reducing interference caused by an interfering signal are disclosed for use in an access node, such as a base station, communicating with at least one mobile terminal in a wireless network, the method comprising the following steps: receiving information related to at least one data packet that is to be transmitted by a second access node to at least a second mobile terminal, receiving time-frequency information about the point in time when the at least one data packet will be transmitted from the second access node to the second mobile terminal, estimating the interfering signal based on the at least one data packet, cancelling interference based on the estimated interference signal at the point in time. This facilitates interference cancellation, especially in a network using distributed RRM.
摘要:
The invention describes a flow control method to control HS-DSCH data streams over UTRAN Iub and Iur interfaces. Two credit assignment schemes are also described. A radio network node at which the flow control method executes is proposed. Finally a computer program product for execution of the flow control method and the credit assignment schemes is described. The control of separate user data flows is coordinated by Node-B and data transport over the Iub and Iur interfaces is adapted to data transfer over the Uu interface. The main advantage is that buffering can be primarily maintained in SRNC. It is shown that the proposed flow control method can significantly reduce Node-B's buffer level when compared to a scheme where the control of individual data flows is performed independently of each other. It is also shown that the negative impact on the quantity of flowing data is generally minor.
摘要:
In accordance with the invention, signal information representative of a first set of information to be transmitted more than one time over at least one link is stored as a priori known signal information. This could be previously received and/or, detected information, own transmitted information or otherwise available relevant signal information in the node. Signal information representative of a second set of information is received, wherein a transmission of the first set of information interferes with the reception of the second set of information. In spite of the interference, at least part of the second set of information can still be successfully be detected by exploiting the received signal information and at least part of the previously stored a priori known signal information. The information is detected by interference cancellation based on the received signal information and relevant parts of the a priori known information. The set of priori known signal information is preferably updated by continuously storing newly detected information.
摘要:
A first User Equipment (UE), a second UE, a first Radio Network Node (RNN), and methods therein for controlling interference between transmissions in a first system and transmissions in a second system. The first system comprises the first UE and the first RNN serving the first UE. The second system comprises the second UE and a second RNN serving the second UE. The first system has a first priority in a first part of a shared spectrum and the second system has a second priority in the first part of the shared spectrum, wherein the first priority is higher than the second priority. The method in the first UE comprises transmitting a signal to a second RNN that is to perform a downlink transmission to the second UE, which signal is configured to control the transmission of the second RNN.
摘要:
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.
摘要:
Network node (110), and method (300) in a network node (110), for load control in a cell (130) in a wireless communication system (100). The method (300) comprises starting an interference cancellation process, for reducing interference between uplink signals, estimating an interference cancellation gain, relative to an interference reduced received uplink signal power resulting from the interference cancellation process, wherein the interference cancellation gain is estimated after the start of the interference cancellation process but before the interference cancellation process is completed. In addition, the method (300) comprises controlling the traffic load of the cell (130), by considering the estimated interference cancellation gain.
摘要:
It is presented a method for obtaining a set of selected antennas in a mobile communication network, wherein each one of the selected antennas is intended to be used in data transmissions to a first mobile communication terminal. The method is performed in a network node of the mobile communication network and comprises candidate the steps of: obtaining a set of candidate antennas, wherein each one of the candidate antennas is arranged to send out the same cell identifier and at least some of the candidate antennas have different coverage areas; evaluating performance of at least a subset of the candidate antennas in relation to the first mobile communication terminal; and determining a set of selected antennas based on the performance of the candidate performance antennas having been evaluated. A corresponding network node, computer program and computer program product are also presented.
摘要:
Systems and methods for the configuration of network nodes without a secured connection in a telecommunications system are described herein. These network nodes can be wireless network nodes which are part of the network infrastructure, such as, wireless relays, wireless repeaters and self-back-hauled eNodeBs.
摘要:
Method and arrangement in a relay node, for selecting communication mode. The relay node is configured to communicate with a base station via a donor antenna over a first link and to communicate with a user equipment via a coverage antenna over a second link. The method comprises obtaining an isolation value, based on the radio wave isolation between the relay donor antenna and the relay coverage antenna. The obtained isolation value is compared with an isolation threshold level value. The relay node is configured to communicate in full duplex mode if the obtained isolation value exceeds the isolation threshold level value, otherwise in half duplex mode. Information concerning the configured duplex mode of the relay node is transmitted to the base station.Also a method and arrangement in a base station is described.