摘要:
In a network comprising a signal forwarding node, a pre-coding code book generating method, wherein the method comprises: generating a pre-coding code book, wherein the pre-coding code book comprises at least one pre-coding code word corresponding to the signal forwarding node, and the pre-coding code word comprises one or more antenna beamforming weights; and communicating the pre-coding code book to a user equipment.
摘要:
In a network comprising a signal forwarding node, a pre-coding code book generating method, wherein the method comprises: generating a pre-coding code book, wherein the pre-coding code book comprises at least one pre-coding code word corresponding to the signal forwarding node, and the pre-coding code word comprises one or more antenna beamforming weights; and communicating the pre-coding code book to a user equipment.
摘要:
The present invention relates to methods and arrangements that enable easy integration of on/off repeaters in a radio access network and a minimized signaling for the UE repeater selection. This is achieved by a solution where the RBSs are working in a pre-coding mode and where the repeaters are measuring the downlink reference signals, selecting pre-coding matrices and feeding the index of selection back (i.e. the PMI) to the RBS, in analogy with what a UE does. This allows the RBS to distinguish the UE repeater selection, without introducing any extra uplink report or interaction between UEs and repeaters, by comparing the index from the UE with the indices from different repeaters.
摘要:
The present invention relates to methods and arrangements that enable easy integration of on/off repeaters in a radio access network and a minimized signaling for the UE repeater selection. This is achieved by a solution where the RBSs are working in a pre-coding mode and where the repeaters are measuring the downlink reference signals, selecting pre-coding matrices and feeding the index of selection back (i.e. the PMI) to the RBS, in analogy with what a UE does. This allows the RBS to distinguish the UE repeater selection, without introducing any extra uplink report or interaction between UEs and repeaters, by comparing the index from the UE with the indices from different repeaters.
摘要:
The present disclosure relates to a cell selection scheme. In one embodiment, there provides a method for performing a cell selection for a UE at a primary serving cell of the UE in a CoMP cluster including the primary serving cell and one or more candidate cells, the method comprising the steps of: receiving PRACH measurements for the UE from the candidate cells; and selecting from the candidate cells one or more cells for the UE as its secondary serving cells based on the received PRACH measurements.
摘要:
Methods and arrangements in a control node, a base station and a UE, for achieving a UE up link transmit diversity mode adaptation, which is coordinated between a base station and a control node. The methods and arrangements involve the control node indicating a set of allowed up link transmit diversity modes to the base station. Further, an up link transmit diversity mode for the mobile terminal is selected in the base station, from amongst the currently allowed up link transmit diversity modes; where the selection is based on information concerning the mobile terminal which is available in the base station. The base station then indicates the selected up link transmit diversity mode to the mobile terminal, which changes to the up link transmit diversity mode indicated by the base station. The methods and arrangements enable a faster and more flexible UE up link transmit diversity mode adaptation.
摘要:
The present invention relates to a method, apparatus for selecting transport formats in a wireless transmitting device and wireless communication device associated therewith, wherein the wireless transmitting device supports transmission modes including single-stream transmission mode and multiple-stream transmission mode and comprises a transmit buffer to buffer data before transport format being selected for transmitting said data to a wireless receiving device, comprising: acquiring radio qualities associated with each stream being transmitted to the wireless receiving device; setting the transmission mode according to received radio qualities; detecting whether there is buffer limitation for said transmit buffer when multiple-stream transmission mode is set; and when buffer limitation is detected and multiple-stream transmission mode is selected for stream transmission, allocating the buffered data among the multiple streams based on the received radio qualities associated with respective streams and selecting transport formats for respective streams of the multiple streams based on their respective allocated buffered data quantities. This enables to obviate the TX power imbalance in case of multiple-stream transmissions, balance code and power usage among UEs in a cell, and thus improve code multiplexing efficiency.
摘要:
The present disclosure relates to a method of a first radio device in non-network assisted device-to-device (D2D) communication with a second radio device using a first frequency resource and a first communication protocol. The method comprises determining that the first radio device is within coverage of a cellular network. The method also comprises connecting to the cellular network. The method also comprises sending a message to the second radio device, informing said second radio device that the first radio device is within coverage of the cellular network. The method also comprises receiving a message from the cellular network comprising information about a second frequency resource and a second communication protocol. The method also comprises initiating a handover of the D2D communication from the first frequency resource and communication protocol to the second frequency resource and communication protocol.
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:
The invention relates to methods, a user equipment and a communication network entity for optimizing the radio resource utilization in a communication network system comprising a network side and a user equipment side between which data is transmitted on uplink (17) and downlink (16) channels with a transmit power and said user equipment (18) is arranged to adjust said transmit power on said uplink channels (17) according to gain factors received from said network side, wherein said user equipment (18) is located in a location area of said communication network system. The gain factors are transmitted to the user equipment (18) solely when the user equipment (18) accesses the network system instead of transmitting gain factors during every session setup as long as the user equipment (18) is in said location area.