Abstract:
Transmitter and receiver technologies are provided that allow more than two users in a time-slotted communications system to share the same time slot by creating orthogonal sub-channels, while keeping the receiver complexity low are provided. Moreover, the users can in accordance with some embodiments employ GMSK or other non-linear continuous phase modulation technique.
Abstract:
A method in a mobile station (120) for enabling more than eight mobile stations to share one uplink Packet Data Channel (PDCH) in a GSM network (100) is provided. A combination of Uplink State Flag values in a set of two or more downlink radio blocks is received. The received Uplink State Flag values of the combination are jointly interpreted. Packet data are only transmitted (706; 1402) when an assigned combination of Uplink State Flag values has been received. Conventionally in GSM only a maximum of 8 unique mobile stations can share one PDCH using one timeslot (of eight conventionally available). By the combination of the USF values and joint interpretation thereof, more than 8 unique mobile station can share the same PDCH. Compatibility is also enabled with legacy mobile stations supporting only a single USF value.
Abstract:
A method in a mobile station (120) for enabling more than eight mobile stations to share one uplink Packet Data Channel (PDCH) in a GSM network (100) is provided. A combination of Uplink State Flag values in a set of two or more downlink radio blocks is received. The received Uplink State Flag values of the combination are jointly interpreted. Packet data are only transmitted (706; 1402) when an assigned combination of Uplink State Flag values has been received. Conventionally in GSM only a maximum of 8 unique mobile stations can share one PDCH using one timeslot (of eight conventionally available). By the combination of the USF values and joint interpretation thereof, more than 8 unique mobile station can share the same PDCH. Compatibility is also enabled with legacy mobile stations supporting only a single USF value.
Abstract:
The invention relates to a method in a mobile network for resolving a Temporary Block Flow, a TBF, in a wireless network including one or more mobile stations exchanging data with a base station system. The packet data is transmitted by means of one or more RLC/MAC blocks each associated with the TBF. The TBF is identified by means of an Temporary Flow Identity, a TFI, and associated to an MS. The inventive method is applicable in a wireless communication system with an extended TFI addressing space. The method comprises steps of receiving a RLC/MAC block and retrieving a first TFI in the RLC/MAC header. The TFI is compared to an assigned TFI. The capability for the associated MS to resolve TBFs based on extended TFI addressing is determined. If the received first TFI matches assigned TFI and represents a comprehensive TFI for the associated MS, the payload of the RLC/MAC block is decoded. When the first TFI matches assigned TFI value and is identified as a code point to an eTFI, at least a predetermined field of the RLC data block is decoded and an extended TFI, eTFI, is retrieved. The eTFI is compared with an assigned eTFI. Following a match, the payload of the RLC data block is decoded. The procedure is repeated for further RLC/MAC block associated with the TBF until the TBF is resolved.The invention also relates to a mobile station and a base station system used to resolve a TBF according to the inventive method.
Abstract:
The invention relates to a method in a mobile network for resolving a Temporary Block Flow, a TBF, in a wireless network including one or more mobile stations exchanging data with a base station system. The packet data is transmitted by means of one or more RLC/MAC blocks each associated with the TBF. The TBF is identified by means of an Temporary Flow Identity, a TFI, and associated to an MS. The inventive method is applicable in a wireless communication system with an extended TFI addressing space. The method comprises steps of receiving a RLC/MAC block and retrieving a first TFI in the RLC/MAC header. The TFI is compared to an assigned TFI. The capability for the associated MS to resolve TBFs based on extended TFI addressing is determined. If the received first TFI matches assigned TFI and represents a comprehensive TFI for the associated MS, the payload of the RLC/MAC block is decoded. When the first TFI matches assigned TFI value and is identified as a code point to an eTFI, at least a predetermined field of the RLC data block is decoded and an extended TFI, eTFI, is retrieved. The eTFI is compared with an assigned eTFI. Following a match, the payload of the RLC data block is decoded. The procedure is repeated for further RLC/MAC block associated with the TBF until the TBF is resolved.The invention also relates to a mobile station and a base station system used to resolve a TBF according to the inventive method.
Abstract:
Transmitter and receiver technologies are provided that allow more than two users in a time-slotted communications system to share the same time slot by creating orthogonal sub-channels, while keeping the receiver complexity low are provided. Moreover, the users can in accordance with some embodiments employ GMSK or other non-linear continuous phase modulation technique.