Abstract:
Enhanced methods for channel quality estimation utilize soft symbol output data to generate a statistic or set of statistics that are representative of BER for each of a plurality of bursts corresponding to a composite channel. The statistics are mapped into a BER estimate to generate individual BER estimates for each of the plurality of bursts. The individual BER estimates are combined to obtain an estimate of the BER for the entire composite channel. Alternatively, the BER estimate for the composite channel may then be mapped into a quality estimate for the composite channel using a monotonic function.
Abstract:
Una unidad de transmisión/recepción inalámbrica (WTRU), que comprende: medios para recibir información de asignación de recursos radio sobre un canal de control de enlace descendente físico; medios para determinar si la información de asignación de recursos radio se destina a la WTRU en base a bits de comprobación de redundancia cíclica, CRC, de identidad de WTRU enmascarada, ID enmascarada; medios para determinar si la información de asignación de recursos radio es para un canal compartido de enlace ascendente o un canal compartido de enlace descendente; medios para utilizar la información de asignación de recursos radio para transmitir datos sobre el canal compartido de enlace ascendente a condición de que la información de asignación de recursos radio se determine que es para el canal compartido de enlace ascendente; y en la que los datos se transmiten sobre el canal compartido de enlace ascendente un número predeterminado de intervalos de tiempo después de la recepción de la información de asignación de recursos radio.
Abstract:
A METHOD AND APPARATUS FOR ENCODING AND DECODING HIGH SPEED SHARED CONTROL CHANNEL, HS-SCCH DATA ARE DISCLOSED. FOR PART 1 DATA (205) ENCODING, A MASK MAY BE GENERATED USING A WIRELESS TRANSMIT/RECEIVE UNIT, WTRU IDENTITY (ID) AND A GENERATOR MATRIX WITH A MAXIMUM MINIMUM HAMMING DISTANCE. FOR PART 2 DATA ENCODING, CYCLIC REDUNDANCY CHECK, CRC BITS ARE GENERATED BASED ON PART 1 DATA (205) AND PART 2 DATA. THE NUMBER OF CRC BITS (213) IS LESS THAN THE WTRU ID. THE CRC BITS (213) AND/OR THE PART 2 DATA ARE MASKED WITH A MASK. THE MASK MAY BE A WTRU ID OR A PUNCTURED WTRU ID OF LENGTH EQUAL TO THE CRC BITS (213). THE MASK MAY BE GENERATED USING THE WTRU ID AND A GENERATOR MATRIX WITH A MAXIMUM MINIMUM HAMMING DISTANCE. THE MASKING MAY BE PERFORMED AFTER ENCODING OR RATE MATCHING. (THE MOST ILLUSTRATIVE DRAWING IS
Abstract:
A method and apparatus for encoding and decoding high speed shared control channel (HS-SCCH) data are disclosed. For part 1 data encoding, a mask may be generated using a wireless transmit/receive unit (WTRU) identity (ID) and a generator matrix with a maximum minimum Hamming distance. For part 2 data encoding, cyclic redundancy check (CRC) bits are generated based on part 1 data and part 2 data. The number of CRC bits is less than the WTRU ID. The CRC bits and/or the part 2 data are masked with a mask. The mask may be a WTRU ID or a punctured WTRU ID of length equal to the CRC bits. The mask may be generated using the WTRU ID and a generator matrix with a maximum minimum Hamming distance. The masking may be performed after encoding or rate matching.
Abstract:
A method and apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed. A PAN check sequence (PCS) is created, for example using a cyclic redundancy check (CRC) encoding.. The PCS is masked with a temporary flow identity (TFI) assigned to a TBF or a mask generated based on the TFI. A data block including the PAN field and the masked PCS is then processed for transmission. The mask may be generated by converting the TFI using an (M, N) code, M being not greater than the number of bits of the PCS and N being the number of bits of the TFI. With this scheme, a TFI may be transmitted in a PAN field without using explicit bits to identify the TBF.
Abstract:
A method and wireless communication system for providing channel assignment information used to support an uplink (UL) channel and a downlink 5 (DL) channel. The system includes at least one Node-B and at least one wireless transmit/receive unit (WTRU). The WTRU communicates with the Node-B via a common control channel, the UL channel and the DL channel. The WTRU receives a message from the Node-B via the common control channel. The message includes an indication of whether the message is intended for assigning 10 radio resources to the UL channel or the DL channel. The WTRU determines whether the message is intended for the WTRU and, if so, the WTRU determines whether the message is for assigning radio resources to the UL channel or the DL channel. The WTRU takes an appropriate action based on whether the message is for assigning radio resources to the UL channel or the DL channel.