摘要:
A receiver in a radio system, comprising one or more antennas (600A to 600B) for receiving a signal including signal components descriptive of a signal to be detected and an interfering signal. The receiver comprises means for measuring (614A to 614B) the antenna-specific reception power of the received signal and means for weighting (614A to 614B) the signal received in each antenna by a antenna-specific weighting coefficient proportional to the reception power of said 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.
摘要:
The invention relates to a receiver in a spread spectrum system, comprising reception means for receiving a spread spectrum signal. The receiver comprises interference cancellation means configured to cancel multiuser interference and external interference from the received spread spectrum signal in one or more interference cancellation stages. The invention further relates to an interference cancellation method in a spread spectrum system.
摘要:
First information is detected in a received wideband signal. The first information is conveyed by a plurality of multiplexed frequency bands, individual ones of the multiplexed frequency bands corresponding to individual ones of first users and to a transport format. Detecting includes making data decisions corresponding to the first information. For each first user, a regenerated signal is created using the data decisions corresponding to that first user and the transport format. A resultant signal is created based on the regenerated signals for all of the first users and on the received wideband signal. Second information is detected in the resultant signal at least by using a number of spreading codes, individual ones of which are associated with individual ones of second users.
摘要:
The present invention relates to a method and system for transmitting data in cellular network, wherein frequency reuse is proposed to be designed adaptive and utilized only only when needed, e.g., with small coding rates. The adaptive reuse can be obtained by using the conventional link adaptation approach. The invention can be easily applied to a Frequency Division Multiple Access (FDMA) system which consists of combination of localized and distributed FDMA. Thereby, better resistance against strong other cell interference can be provided.
摘要:
In a transmitting entity a message of a first time period L is divided into N self-decodable blocks and transmitted towards a communications network. At the communications network the N self-decodable blocks are detected by a receiving entity and decoded on a block basis.
摘要:
This invention teaches a method for use in a wideband CDMA telecommunications system wherein the base station (BS) utilizes transmit antenna diversity. The method enables the user equipment (UE) to perform a channel estimate for channels received from two antennas of the base station (BS), and includes steps of: (a) computing an estimated phase difference between a common pilot channel and a dedicated pilot channel received from one antenna of the two antennas; and (b) determining the channel estimate by rotating a common pilot channel estimate according to the estimated phase difference, where the phase difference is computed as a complex coefficient between the common pilot channel and the dedicated pilot channel. In a second aspect this invention teaches a method for use in a transmit antenna diversity system for enabling the UE to verify an antenna phase shift previously signaled by the UE to the BS. This method includes a first step of: (a) exploiting prior knowledge of BS rotation angle by considering a vector x that includes all hypotheses for complex rotation coefficients of the BS with respect to all possible rotation angles, in accordance with a decision rule for an estimation of a complex rotation coefficient. A second step of the method evaluates a cost function of a hypothesis m by considering the prior knowledge.
摘要:
In one exemplary embodiment, a method includes: transmitting a value from an access node towards an apparatus, where the value is indicative of a size of a first portion of an uplink resource block, where the uplink resource block is shared among a plurality of apparatus, where the first portion is specified for transmission of a first type of signaling to the access node, where a second portion of the uplink resource block is specified for transmission of a second type of signaling to the access node; and receiving at least one transmission using at least one of the first portion and the second portion.