摘要:
The present invention relates to a connection establishment method and a radio system. When a base station (11) detects a preamble (20) from a subscriber terminal equipment (13), the power adjustment of a closed loop is started for controlling the transmission power of the subscriber terminal equipment (13). Signals (15) of the base station (11) and the subscriber terminal equipment (13) are synchronized and the subscriber terminal equipment (13) sends a randomly selected identifier. The identifier determines a transit channel to which the subscriber terminal equipment (13) suggests to move. The base station (11) may change the suggested transit channel and echo the identifier back to the subscriber terminal equipment (13), and the base station (11) and the subscriber terminal equipment (13) communicate on the transit channel from which they move to a traffic channel. The inventive method accelerates connection establishment.
摘要:
This invention relates to a method for setting up transfer-related resources, comprising assigning (401) an identifier (12a, 212a) to at least one data unit (12, 212), wherein said identifier associates said at least one data unit with a first entity (10, 210, 510) in a first network node (501), transferring (404) said at least one data unit from said first node to a second node (502), and setting up a second entity (11, 211, 511) in said second network node after at least one of said at least one data units has been transferred from said first network node to said second network node, wherein said second entity is associated with said at least one data unit via said identifier and wherein said first and second entity jointly implement a function related to the transfer of said at least one data unit. The invention further relates to a computer program, a computer program product, a system and a device.
摘要:
The present invention concerns a method of configuring quality parameters in a packet-based transmission flow for packets within the flow, and still further a method of transmitting packet-based transmission flows comprising packets of configured quality classes within a session capable of handling at least two distinguishable flows, the method comprising the steps of: receiving packets of a first flow as a first flow of the session, analyzing the received packets in terms of the configured quality classes, separating those segments of the packets of a configured quality class, which configured quality class differs from a quality class of said first flow of the session. Also, a corresponding reception method is disclosed, and respective transmitter and receiver devices are disclosed.
摘要:
A method for generating acknowledgement messages in a data transmission system having a receiver for receiving datagrams and being capable of determining which of a series of datagrams have been incorrectly received, the method comprising generating a plurality of a data units, each data unit comprising: a status bit indicative of the status of the data unit; and a plurality of spacing bits together forming a binary representation of a number at least partially indicative of the spacing between one incorrectly received datagram and a succeeding incorrectly received datagram. Apparatus for carrying out various aspects of the methods are also provided.
摘要:
The invention relates to a method between a communications device (110) and a communications network, which communications network generally provides at least a direct cell access mechanism and an alternative cell access mechanism for the communications device for uplink access to the communications network. The method comprises determining by the communications network and indicating (230) to the communications device (110) whether the direct cell access mechanism can at a given time be provided. This being the case, the communications device can directly start sending user data (150) on a traffic channel. In a situation in which the direct cell access cannot be provided, it is indicated to the communications device that the alternative cell access mechanism should be used.
摘要:
The invention concerns the control of connections in cellular telecommunication systems. According to the invention, the available radio resources are controlled by allowing only certain conbinations of transport formats to be used by a single user. The inventive method restricts the combinations of bearer bit rates which can be used, without strictly limiting some bearers from using highest bit rates. This inventive approach allows flexible overall control of radio resources, while retaining the possibility of bearers to select between different bit rates.
摘要:
The invention relates to a method between a communications device (110) and a communications network, which communications network generally provides at least a direct cell access mechanism and an alternative cell access mechanism for the communications device for uplink access to the communications network. The method comprises determining by the communications network and indicating (230) to the communications device (110) whether the direct cell access mechanism can at a given time be provided. This being the case, the communications device can directly start sending user data (150) on a traffic channel. In a situation in which the direct cell access cannot be provided, it is indicated to the communications device that the alternative cell access mechanism should be used.
摘要:
A wireless communications network has a plurality of terminals and at least one base station which transmits data to each one of said plurality of terminals on a wireless downlink and receives data from each one of said plurality of terminals on a wireless uplink. One of the terminals sends a rate request to the base station. The rate request requests that the data rate on the wireless uplink for the terminal be changed. In response to the rate request, the base station sends a rate grant to the terminal. The rate grant indicates whether or not the terminal may change the data rate on the wireless uplink.
摘要:
A signalling method in a wireless digital telecommunication system between a base station and a terminal, where the signals between the base station and the terminal are generated from bursts comprising symbols, the bursts comprising a known training sequence. The symbols are used for generating a second training sequence of the same length as the known training sequence and a burst comprising said training sequence to be used for transmitting signalling messages. The number of training sequences used can be restricted to two, whereby conventional user data is sent in the burst comprising the known training sequence and information deviating from the conventional user data is sent by the burst comprising the second training sequence, and the stealing symbols in the burst can be used for specifying a signalling message to be transmitted.
摘要:
A method, device, and system that use narrowband channels to provide higher re-use without multiplying the operator spectrum requirement. If a communication system supports variable carrier bandwidth channels, the narrow channel capacity can be divided among adjacent cells to provide higher re-use.