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:
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:
In a method of enabling improved group communication for a plurality of mobile terminals MT participating in a multicast session in a communication system comprising a plurality of cells and at least two base station systems with corresponding cell coverage, reducing S1 mandatory paging signalling from said mobile terminals and said network, by maintaining said network and said mobile terminals in an active state, and limiting S2 cell update signalling in response to one of said plurality of mobile terminal moving from one cell to a new cell.
摘要:
In a method of enabling improved group communication for a plurality of mobile terminals MT participating in a multicast session in a communication system comprising a plurality of cells and at least two base station systems with corresponding cell coverage, reducing S1 mandatory paging signalling from said mobile terminals and said network, by maintaining said network and said mobile terminals in an active state, and limiting S2 cell update signalling in response to one of said plurality of mobile terminal moving from one cell to a new cell.
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.
摘要:
A telecommunications network comprises a sending entity (22) and a receiving entity (24) which communicate over a radio interface (26). The sending entity (22) comprises a compressor (40) and a message formatter (34). The compressor (40) in turn comprises a sending entity compression dictionary (60) and dictionary update decision logic (62). The compressor (40) compresses a message to obtain a compressed message to be sent over the radio interface (26) to the receiving entity (24) and also determines a compression factor for the message. The compression factor is based on similarity of the message to contents of the sending entity compression dictionary. The dictionary update decision logic (62) makes a decision whether the compression factor justifies updating of a receiving entity decompression dictionary (70). The message formatter (34) includes, in the compressed message, an update indication regarding the decision. The receiving entity (24) has a decompressor (50) which comprises the receiving entity decompression dictionary (70) and decompression dictionary update determination logic (72). The decompressor (50) decompresses the compressed message to obtain a decompressed message. The decompression dictionary update determination logic (72) uses the update indication to ascertain whether to use the decompressed message to update the receiving entity decompression dictionary (70). In one example illustrative embodiment, the compressor (40) uses a SigComp compression scheme to compress the message to obtain the compressed message, and the message formatter (34) sets a bit flag in a SigComp portion of the compressed message as the update indication.
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.