摘要:
A system, method, and apparatus for increasing the efficiency of the compression of a communication protocol for use over bandwidth limited communication links. One aspect of the present invention uses the knowledge of the structure and content of communication protocols to form a static dictionary or static binary code tree. As a result, the compression efficiency can be greatly increased. Another aspect of the present invention provides a combined static and dynamic dictionary or binary code tree to perform communication protocol compression. In one aspect of the invention, the static binary code tree or static dictionary is constructed by studying flows of data protocols in the conditions of their intended usage.
摘要:
A method, system, and apparatus for increasing the efficiency and robustness of the compression of a communication protocol for communication between entities over bandwidth limited communication links. The present invention uses the request-reply nature of communication protocols to update compression and decompression dictionaries. Each communication entity will update its dictionary with a new message as soon as it is known that the other communication entity has access to the message. In one aspect of the present invention, an entity updates a compression/decompression dictionary by updating the dictionary with sent messages as soon as a reply arrives from the other entity, and by updating the dictionary with received messages immediately. In another aspect of the present invention, received messages are used to update an entity's decompression dictionary and sent messages are used to update an entity's compression dictionary.
摘要:
The present invention relates to an apparatus and method for controlling a number of user equipments operating in a cellular network. The method comprises receiving an indication that a rise-over-thermal (RoT) measured in a cell is above a threshold. In response to reception of the indication, it is determined (52) if a user equipment, which is in a Radio Resource Control, RRC, state CELL_DCH and served by the cell, has a low data activity in the uplink According to the method, a user equipment, which is in the RRC state CELL_DCH, is served by the cell and is determined to have a low data activity in the uplink, is triggered (54) to change state to a RRC state CELL_FACH. Thereby the contribution of the user equipment to the RoT of the cell may be reduced and it may be possible to avoid dropping users due to congestion control in case of unacceptably high RoT in the cell.
摘要:
A telecommunication apparatus (100) enabled for high-speed packet access is disclosed. The apparatus (100) is arranged to operate according to a reduced and a further reduced mode of transmission of dedicated physical control channel transmission, and has an operation mode controller (102). The operation mode controller (102) is arranged to determine a number of present consecutive dedicated physical data channel transmissions, and if the number of present consecutive dedicated physical data channel transmissions reaches a threshold, set the operation mode to the reduced mode, or if the number of present consecutive dedicated physical data channel transmissions is below the threshold, set the operation mode to the further reduced mode. Corresponding method and computer program are also disclosed.
摘要:
A node (26) of a radio access network (24) and method of operating such node controls transitions between radio resource control states for a wireless terminal (30). In an example embodiment and mode the method comprises: (1) upon completion of a data activity, making a prediction of a data transmission parameter; (2) making an assessment regarding probable accuracy of the prediction; and (3) using the assessment to make a determination whether or not to implement a radio resource control state switch (the “state switch”). The data transmission parameter may be a different parameter in respective differing example embodiments. In one example embodiment and mode the data transmission parameter comprises inter-arrival time between bursts of data activity. In another example embodiment and mode the data transmission parameter comprises burst size of a burst of data activity.
摘要:
The present invention relates to a method of reducing setup delay for an uplink message from a user terminal (UT) in a delay sensitive service in a radio telecommunications system, such as a push to talk service (PoC), by predicting that delay sensitive data is about to be transmitted, sending, as a response to the prediction, a connection setup signal from the terminal to a basestation subsystem (BSS) in order to set up an early uplink radio connection, and transmitting the delay sensitive data via the early uplink connection. There is also provided a user terminal (UT) and a radio telecommunications system.
摘要:
Control of transitions between radio resource control, RRC, states for a wireless terminal in a radio access network is described. The radio resource control states comprise a first state and a second state. A calculation (702) is made of a prediction of an inter-arrival time, ITB, between data bursts to be handled. A detection (704) that a data burst is to be handled is done and then it is decided (706) whether to make a transition from the first state to the second state essentially immediately and upon termination of handling of the detected data burst if the prediction of the ITB is greater than a current ITB threshold. The current ITB threshold is a time interval that is depending on a function of RRC state transition costs and the fractional distribution of true predictions and false predictions of a plurality of predicted ITB values in relation to recorded ITB values. Then, in accordance with the decision, the wireless terminal is directed (708) either to remain in the first state or switch to the second state.
摘要:
Control of transitions between radio resource control, RRC, states for a wireless terminal in a radio access network is described. The radio resource control states comprise a first state and a second state. A calculation (702) is made of a prediction of an inter-arrival time, ITB, between data bursts to be handled. A detection (704) that a data burst is to be handled is done and then it is decided (706) whether to make a transition from the first state to the second state essentially immediately and upon termination of handling of the detected data burst if the prediction of the ITB is greater than a current ITB threshold. The current ITB threshold is a time interval that is depending on a function of RRC state transition costs and the fractional distribution of true predictions and false predictions of a plurality of predicted ITB values in relation to recorded ITB values. Then, in accordance with the decision, the wireless terminal is directed (708) either to remain in the first state or switch to the second state.
摘要:
The invention relates to message-based communication between at least two units (100; 200) participating in a communications session. A first communications unit (100) generates and stores a state (10) comprising unit-associated data applicable for multiple messages to be communicated between the unit (100) and a second unit (200). A copy of this state (10) is then transmitted to the second unit (200), where it is stored. The state (10) and state copy can now be used in message processing for the purpose of reducing the message size and reducing utilization of communications resources. Data contained in the state (10) or state copy and found in the message (m1) is removed from the message prior transmission thereof. The resulting reduced-size message (m1′USD) is transmitted to the receiving unit, where the message (m1′USD) is anew processed by re-entering the data, removed by the transmitting unit, into the message (m1′USD) using the state copy or state. The original message (m1) is then recreated.
摘要:
A telecommunication apparatus (100) enabled for high-speed packet access is disclosed. The apparatus (100) is arranged to operate according to a reduced and a further reduced mode of transmission of dedicated physical control channel transmission, and has an operation mode controller (102). The operation mode controller (102) is arranged to determine a number of present consecutive dedicated physical data channel transmissions, and if the number of present consecutive dedicated physical data channel transmissions reaches a threshold, set the operation mode to the reduced mode, or if the number of present consecutive dedicated physical data channel transmissions is below the threshold, set the operation mode to the further reduced mode. Corresponding method and computer program are also disclosed.