Abstract:
PROBLEM TO BE SOLVED: To provide a method of indicating special transmitting contents in radio communication systems. SOLUTION: A radio communication infrastructure entity assigns a plurality of schedulable radio communication entities to a group wherein each entity is assigned a location within the group. The infrastructure entity indicates which of the plurality of schedulable radio communication entities assigned to the group have been assigned a radio resource, for example using a terminal assignments field 910 and indicates special transmission information using a special transmissions field 905. The special transmissions field 905 is used to indicate which of the schedulable radio communication entities are receiving a special transmission. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve a load of management when adjusting, in a central schedule management system, all mobile stations sharing a forward dedicated control channel F-DCCH using maximum ratio combination in soft hand-off. SOLUTION: A method implemented in a radio communication station includes receiving frames (310), determining the intended recipient of the frames received (312), buffering frames (314) if required, obtaining information specifying how to decode signals received by the radio communication station (316), combining frames (318), and decoding the combined frames as specified (320). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To improve the load on management, when adjusting in a central schedule management system, all mobile stations that share a forward dedicated control channel F-DCCH which uses maximum ratio combination in soft hand-off. SOLUTION: A method implemented in a radio communication station includes receiving frames (310), determining the intended recipient of the frames received (312), buffering frames (314), as required, obtaining information specifying how to decode signals received by the radio communication station (316), combining frames (318), and decoding the combined frames as specified (320). COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
A call in progress in a first communication network is handed over to a second communication network which uses a different air interface. To facilitate the handover, a present serving base station (204) commands a mobile communication device (202) to take measurements (312, 314) of surrounding cells of the second communication network. The measurements are sent along with a handover request (322, 324) from the serving base station (204) to a radio network controller (299) of the second communication network, which decides (326) upon a cell to which the call will be handed. A grant message including an identifier to be used by the mobile communication device (202) and an identifier of the base station (212) receiving the handover is transmitted back (330, 332) to the first communication network, and used by the mobile communication device (202) in handing over the call.
Abstract:
A mobile station ( 102 ) operating in a present serving cell ( 104 ) evaluates a candidate cell ( 108 ) for handover. The candidate cell is of a different air interface from the present serving cell, and thus the mobile station initially has no timing information regarding the candidate cell. To minimize measurement time away from the present serving cell, the mobile station first acquires timing information of the candidate cell ( 406 ). The timing information is used to generate a measurement gap profile ( 608 ). The measurement gap profile is used by the mobile station to configure a measurement pattern based on the timing of the serving cell to ensure reception of control information of the candidate cell.
Abstract:
An apparatus and method of distinguishing a frame on a channel shared by a plurality of users. A unique identifier can be obtained for each of a set of mobile communication devices. A message intended for one of the mobile communication devices can be obtained. The message can be scrambled using a long code generated using a mobile communication device specific long code mask to obtain a scrambled message. The unique identifier can be incorporated into the scrambled message for a frame intended for a selected mobile communication device. The frame can then be transmitted. A radio frequency signal can be received for the frame. Demodulation can be performed on the signal to obtain a scrambled signal. A unique identifier can be extracted from the scrambled signal. The unique identifier extracted from the scrambled signal can be examined to determine if the signal is intended for a mobile communication device.
Abstract:
A method for estimating wireless broadcast service quality on a broadcast channel including the steps of: receiving ( 310 ) a service parameter message with a service identifier associated with a broadcast channel, determining ( 320 ) a quality indicator threshold from the service parameter message, measuring ( 340 ) a quality indicator to form a calculated ( 350 ) quality indicator, comparing ( 360, 370 ) the calculated quality indicator to the quality indicator threshold. The quality indicator threshold can be embedded in the service parameter message or obtained indirectly such as through a table mapping a service identifier to a quality indicator. Various quality indicators are available, including various signal-to-noise ratios (e.g., E b /N t ) and pilot signal-to-noise ratio (C/I PICH ).
Abstract:
A receiver and method for recovering transmitted symbols in a H-ARQ packet retransmission. The method includes receiving a communication signal; determining components of the signal that are not attributed to the desired symbols; removing the unwanted components from the signal to generate a modified communication signal; determining the effective channel impulse response for the modified communication signal; generating a block filter using the effective channel impulse response; and filtering the modified communication signal using the block filter to remove the inter-code interference in the modified communication signal and recover the desired symbols.
Abstract:
The PDCAB packet (300) and the RRA packet (308) are transmitted together on the F-SCCH. For example, 9 RRA bits (305) are appended to the PDCAB field (303), in place of the pad bits (205), thereby allowing both the PDCAB (303) and RRA (311) messages to be protected against errors by a 16-bit CRC (307). In accordance with the embodiments, a receiver is able to distinguish between the varying PDCAB (303) and RRA (305) message formats and transmitting the packets (300) and (308) together is a normal mode of operation in the embodiments. Therefore, in accordance with the embodiments, when the PDCAB packet (300) and RRA packet (308) are transmitted together, the network replaces the N PDCAB pad bits, such as pad bits (205), with the first N bits from the RRA bitmap (311), in order to use the nominal CRC length for both packets (300) and (308).
Abstract:
A wireless communication infrastructure entity assigns a plurality of schedulable wireless communication entities to a group wherein each entity is assigned a location within the group. The infrastructure entity indicates which of the plurality of schedulable wireless communication entities assigned to the group have been assigned a radio resource, for example in a first bitmap (510), and indicates radio resource allocation policy information (520) and indicates a weighting for each assigned wireless communication entity, for example, in a second bitmap (530), to the schedulable wireless communication entities that have been assigned a radio resource.