摘要:
From the network perspective, an uplink resource allocation (PDCCH) is sent that grants an uplink resource to a plurality of user equipments UEs, and the allocation has an indication of a cyclic shift CS for each of the plurality of UEs. The granted uplink resource is mapped to a downlink resource (PHICH) in dependence on the indicated CS for each of the plurality of UEs. The mapping is such that for a predetermined number of UEs being allocated a same uplink resource in a single MU-MIMO uplink resource allocation grant, each pair of said predetermined number of UEs which map to an adjacent downlink resource exhibit an optimized CS relative to one another. The network sends to each of the respective plurality of UEs on the respective mapped downlink resource an indication (ACK/NACK) about data received (on a PUSCH). Apparatus, method, and computer programs for network and UE side implementations are detailed.
摘要:
An approach is provided for performing control signaling. Data and control information are received. The control information is orthogonalized using block-level spreading. The data and the orthogonalized control information are multiplexed at a symbol-level.
摘要:
In accordance with an example embodiment of the present invention, a method comprises mapping a first transmission channel to an existing channel of a network element; switching the network element to a secondary communication mode which is one of a secondary transmission mode and a secondary receiving mode; signaling at least one neighbor network element in the secondary communication mode to associate the network element with the at least one neighbor network element; and receiving a first signal on the mapped first transmission channel from the at least one associated network element.
摘要:
Disclosed is a method including generating information to be transmitted, first transmitting, in a first transmission opportunity of n consecutive transmission opportunities, n being an integer greater than 1, the generated information once, and second transmitting, in one transmission opportunity different from the first transmission opportunity, the generated information a number of times different from once; and a method including first receiving, in the first transmission opportunity of the n consecutive transmission opportunities the information once, and second receiving, in the one transmission opportunity different from the first transmission opportunity, the information the number of times different from once.
摘要:
An interference cancellation unit having as an input two or more IFDMA signals comprising a multitude of frequency bins is provided. The unit comprises a channel estimator for determining a channel estimate from the input signals, a matrix calculator for determining an error covariance matrix of the input signals, and an estimator for determining weight factors on the basis of the channel estimate and the error covariance matrix and weighting and combining the input signals. The unit further comprises a preprocessor for removing unwanted frequency bins from the input signals prior to the error covariance calculation.
摘要:
In one exemplary embodiment, a method includes: configuring a common resource space having a plurality of time-frequency resources and code resources, where the common resource space includes a first portion for a first type of signaling and a second portion for a second type of signaling, where the first type of signaling includes at least one of persistent acknowledgement signaling and scheduling request signaling, where the second type of signaling includes dynamic acknowledgement signaling; and allocating, based on the configured common resource space, resources of the common resource space for the at least one of persistent acknowledgement signaling and scheduling request signaling.
摘要:
In accordance with an exemplary embodiment of the invention a method is provided to reduce a peak to average ratio with a multi-code transmission. The method includes precoding a plurality of symbols, modulating the precoded plurality of symbols using multi-codes including a plurality of orthogonal codes, and transmitting a signal comprising the modulated precoded plurality of symbols, where precoding is performed to reduce the peak to average ratio of the transmitted signal.
摘要:
An approach is provided for performing control signaling. Data and control information are received. The control information is orthogonalized using block-level spreading. The data and the orthogonalized control information are multiplexed at a symbol-level.
摘要:
There is provided a data sequence structure for an uplink control information single carrier signal, comprising: a first code word and a second code word each corresponding to at least one type of uplink control information; a plurality of data units included in the first and the second code-words; a similar sequence of pilot units included in both the first and the second code word. The first and the second code word having a maximum Euclidean distance between the data units, and both the first and the second code word having the form of a CAZAC sequence.
摘要:
There is provided a radio system, having a receiver for receiving cell measurement data with respect to an own cell and adjacent cells of each user terminal of a plurality of cells of the radio system; a calculation unit for comparing resulting interference values of different user terminal combinations within the same frequency-time resource group of the radio system on the basis of the cell measurement data, the frequency-time resource group including user terminals of more than one cell; and a processing unit for controlling resource allocation in at least part of the frequency-time resource groups on the basis of the comparison.