Abstract:
A method, telecommunication apparatus, and electronic device for detecting a status of a radio link are disclosed. A transceiver (302) may maintain a radio link with a network base station (104). A processor (304) may map channel state information to a synchronization status associated with the radio link based on the received signal and determine the synchronization status via a block error rate estimate in the radio link based on the channel state information.
Abstract:
A method and apparatus for jointly decoding a first and second message is disclosed. The signaling scenario illustrated by FIG. 1 and using the codeword properties defined herein, the various embodiments may combine multiple messages under the hypothesis that the value of a message portion corresponding any subsequent observed transmission is different. Accordingly a first buffer may store the first observed message frame (509) and a second buffer may sum the LLR's of subsequent observed frames (513). In the embodiments disclosed, two decoding hypotheses are required only; a first where the two buffers are combined directly (513) and a second where the difference codeword bit LLR's of the first buffer (509) are inverted before combining with those of the second buffer (519). A maximum of N transmissions is allowed by the receiver (523), after which a decoding failure is declared.
Abstract:
A wireless communication infrastructure entity (200) and methods therein including assigning a first wireless communication terminal to one or more resources, and sending non-scheduling information to the first wireless communication terminal on an RRBP field in a downlink block based on whether information is received from the first wireless communication terminal on the assigned resource.
Abstract:
A communications system for reducing bit errors in a received data sequence provides a method for generating candidate code-word sequences for evaluation by a CRC decoder. The system may determine a most-likely received sequence using the probable code-word list of candidate sequences. The number of candidate sequences may be reduced using computational complexity reduction methods. A communications device also provides a candidate sequence generator for use with a CRC decoder to determine a most-likely received sequence and to reduce bit errors in a received sequence.
Abstract:
A method and apparatus for communications channel symbol recovery that improves equalizer performance adds together the log-likelihood ratios (LLRs) of different decision delays rather than using LLRs corresponding only to a single decision delay. A low complexity method comprises, determining an initial coarse delay and a set of fine delays (1003), estimating a training sequence and filter taps set for each fine delay (1007), determining an error function for each fine delay (1009), and linearly combining the filter taps (1013) for determining the symbol estimates (1017).
Abstract:
A method of modulation detection. A signal is received (710). A first decision statistic can be generated based on the received signal (720). The received signal can be transformed (725). A second decision statistic can be generated based on the transformed received signal (735). A selected modulation type can be determined based on comparing the first decision statistic with the second decision statistic (740).
Abstract:
A method for reducing interference in a desired signal in a GSM communication system uses a finite-impulse-response filter for alternate linear equalization. The method includes a first step (300) of inputting a burst of data of a received waveform including interference from a channel of the communication system. A next step (302) includes training the finite-impulse-response filter with a set of symbols of specific quadrature phase, known a priori, in the burst of data of the received waveform. For example known real only and imaginary only symbols are alternatively selected from a midamble of the data burst. A next step (304) includes operating on the received waveform with the finite-impulse-response filter to alternately linearly equalize the burst of data to provide an estimate of the desired signal.
Abstract:
A method for efficiently engineering large, complex systems is provided. The method uses a uniquely defined decision model (1) to lead the design effort, by structuring and analyzing decision making needs of the people who will use the system before any design efforts can constrain the solution. While other methods may suffice for incremental system developments (i.e., system development where small improvements over legacy systems are the objective), this method is particularly useful where revolutionary system improvements, or wholly new system developments is the objective.
Abstract:
According to a preferred embodiment of the invention, the folding storage assembly 60 includes a first panel 135 having first and second end portions 143, 144 a second panel 136 having first and second end portions 150, 151 and a third panel 137 having first and second end portions 158, 159. The first panel 135 is pivotally connected to the second panel 136. In addition, the third panel 137 is pivotally connected to the first panel 135. The folding storage assembly 60 is movable between an in-use position and a stowed position. In the in-use position, the first panel 135 extends laterally from the second end portion 159 of the third panel 137 and the second panel 136 projects upward from the second end portion 144 of the first panel 135. In the stowed position, the first and second panels 135, 136 are positioned substantially flush with the third panel 137. Moreover, the storage assembly 60 may include at least one fastening member 225 for fastening the assembly 60 to the front wall 45 of a basket. Therefore, the invention provides a folding storage assembly 60 that can easily be fastened to a cart basket 35 and can be secured in an open or stowed position to accommodate the needs of a shopper.
Abstract:
A method and apparatus for handling a difference between a first and second message prior to decoding is disclosed The signaling scena&pgr;o illustrated by FIG 1 and using the codeword properties defined herein, the vanous embodiments may combine multiple messages under the hypothesis that the value of a message portion corresponding to any subsequent observed transmission is different Accordingly, a first set of observations (LLR's) (601 ) may be compared with a second or subsequent set of observations (603), and if the observations are found sufficiently similar, may be further compared in the context of a hypothesized difference (607) in constituent message information words Once any difference in information words is identified, the second or subsequent set of observations may be combined (611) with the first set of observations after suitable arithmetic processing, and prior to further decoding.