Abstract:
Certain aspects of a method and system for achieving space and time diversity gain are disclosed. Aspects of one method may include modifying a generalization code of at least one pilot channel, to measure signal strengths for each of a plurality of received multipath signals. A portion of the plurality of received multipath signals may be combined based on the measured signal strengths. The signal strengths of the plurality of received multipath signals may be measured on a primary pilot channel by assigning its generalization code to zero. The signal strengths of the plurality of received multipath signals on a secondary pilot channel may measured by assigning its generalization code to a non-zero value.
Abstract:
A multimode rake receiver comprise a common antenna interface, arranged to at least receive in a first mode a first CDMA radio channel carrying information encoded according to a first baseband modulation standard and to receive in a second mode a second CDMA radio channel carrying information encoded according to a second baseband modulation standard; and a common signal processing path, at least arranged to process in the first mode the first CDMA radio channel and in the second mode the second CDMA radio channel, wherein the common signal path comprises a common descrambling and de-spreading unit and a common hybrid code generating unit arranged to provide to the common descrambling and de-spreading unit chip codes applicable in the first mode to the first CDMA radio channel and in the second mode to the second CDMA radio channel.
Abstract:
This invention relates to a method and an apparatus for code activation, and a computer program and a storage medium thereof. A combined channel impulse response for each code is calculated based on a channelization code, a scrambling code and a channel impulse response corresponding to the code; a statistical result of the correlations between each interference code and all user codes is obtained; an active interference code number is determined; the determined number of interference codes, are activated, wherein a selection of which interference codes to activate is based on the statistical result. In some embodiments of this invention, the interference codes having a close correlation with the user codes may be selected to be activated, thereby the performance of joint detection is improved. In some embodiments of this invention, the complexity of the subsequent joint detection will be remarkably reduced on the premise of ensuring the performance of the joint detection.
Abstract:
The present invention relates to a controller, an access node, an aggregation node and methods thereof in a radio communication network. The controller comprises: a processor configured to select a plurality of spreading codes that are non-orthogonal or short orthogonal, and a transmitter coupled with the processor. The transmitter is configured to notify at least one of an access node or an aggregation node of the plurality of spreading codes.
Abstract:
Certain aspects of a method and system for achieving space and time diversity gain are disclosed. Aspects of one method may include modifying a generalization code of at least one pilot channel, to measure signal strengths for each of a plurality of received multipath signals. A portion of the plurality of received multipath signals may be combined based on the measured signal strengths. The signal strengths of the plurality of received multipath signals may be measured on a primary pilot channel by assigning its generalization code to zero. The signal strengths of the plurality of received multipath signals on a secondary pilot channel may measured by assigning its generalization code to a non-zero value.
Abstract:
A method of transceiving data includes providing a wireless transceiver chip that supports multiple wireless standards for transceiving data packets, wherein a first wireless standard comprises a first modulation and demodulation scheme, and wherein a second wireless standard comprises a second modulation and demodulation scheme, and wherein the first modulation and demodulation scheme is incompatible with the second modulation and demodulation scheme; activating only one PHY layer of the wireless transceiver chip during the transceiving of the data packets; using a MAC layer of the wireless transceiver chip to specify whether the first or second wireless standard is to be used for a given transceiving of the data packets; and the PHY layer receiving instructions from the MAC layer regarding which wireless standard is to be used for the transceiving of the data packets using hardware that is shared by the PHY layer corresponding to both wireless standards.
Abstract:
Certain aspects of a method and system for achieving space and time diversity gain are disclosed. Aspects of one method may include modifying a generalization code of at least one pilot channel, to measure signal strengths for each of a plurality of received multipath signals. A portion of the plurality of received multipath signals may be combined based on the measured signal strengths. The signal strengths of the plurality of received multipath signals may be measured on a primary pilot channel by assigning its generalization code to zero. The signal strengths of the plurality of received multipath signals on a secondary pilot channel may measured by assigning its generalization code to a non-zero value.
Abstract:
Wireless devices, transmitters, systems and methods are provided that have a narrow band signalling channel and a wide band channel, for example an OFDM channel. In order to save power, the wireless device is nominally powered down with the exception of a receiver specific to the narrow band signalling channel. Once instructed to do so over the narrow band signalling channel, the wireless device wakes up the rest of its wide band receive circuitry.