摘要:
A system and method for minimizing the gap in service during the reception of an MBMS session due to the reselection of a neighboring cell in which that MBMS session is not ongoing, wherein a mobile station (MS) indicates its target cell and MBMS service id (i.e., BSIC, neighboring cell index, and Temporary MBMS Group Identity (TMGI)) to a network by sending this information to the network in an RLC/MAC message, e.g., a packet downlink ACK/NACK or with a new message. If the network has resources available for allocation, the network is permitted to allocate these resources for the MBMS session indicated by the MS and send corresponding MBMS neighbor cell information to the MS upon receipt of the packet downlink ACK/NACK or the new message. When the MS receives the MBMS neighbor cell information, it will then reselect to the target cell identified by the MBMS neighbor cell information.
摘要:
Generic service request signalling is defined where a multimode terminal is allowed to request any service that it supports in any of the modes (e.g., access technology like GERAN/UTRAN/CDMA2000/BlueTooth/WLAN/. . . ) supported by the terminal. The network may then decide to move the terminal to other system if possible and necessary in order to establish the service. The terminal capability indication for each system mode mostly exists already.
摘要:
A method of transmitting inband signaling messages in a mobile telecommunications network using SACCH burst. In order to avoid puncturing a fixed amount of bits out of every SACCH burst for inband signaling, the 40-bit FIRE code of the SACCH is replaced with a shorter CRC code, thereby creating unused bits for carrying the messages. After the SACCH block is shortened, a plurality of dummy bits are inserted into the shortened block prior to applying a ½ convolutional code to obtain the coded block. The coded block is further interleaved, reordered and mapped into 4 SACCH bursts. The dummy bits in each SACCH block are then replaced by the inband signaling for transmission.
摘要:
A solution for the transmission of data in a time division multiple access (TDMA) based communication system is provided. A plurality of time slots in a TDMA frame is allocated to a subscriber unit for the transmission of speech data. The extra capacity provided to the subscriber unit is used for increasing the error tolerance of the speech data by adding extra redundancy to the speech data.
摘要:
A system and method controls the use of user equipments within an access network configured to allow user equipments to access a communication system in an environment, wherein wireless access to the communication system is restricted. The system includes a detector network configured for receiving requests for wireless access from user equipments and for detecting such user equipments that seek to use the detector network for communication instead of an allowed access network.
摘要:
Controlling the output power level of a dual transfer mode (DTM) capable terminal involves generating a network message. The network message may be a circuit-switched (CS) handover command and/or a point-to-point signaling message. A maximum output power level value is associated with the network message. The network message is transferred from the network to the terminal. A packet-switched (PS) output power level of the terminal is determined using the maximum output power level value received via the network message.
摘要:
A method for a mobile station and a base station to which the mobile is being handed over, and corresponding apparatuses for use by the mobile and the base station. The method for use by the mobile station is for determining whether dynamic configurations are in use by the base station to which the mobile is being handed over, and the method for use by the base station is for determining whether to use a dynamic configuration (if the base station uses dynamic configurations) or to switch to a static preconfiguration in communicating with the mobile. The base station to which the mobile is being handed over is of one wireless communication system (such as the UTRA wireless communication system) and the base station doing the handing over is of another type (such as GSM). Both base stations are assumed to broadcast control signals on a respective broadcast control channel.
摘要:
The invention relates to a method of facilitating measurement of a transmission level, and a base station. The base station moves its broadcast (BCCH) from one time slot (10 to 17) to another so that the broadcast (BCCH) is sent in different time slots (10 to 17) of successive frames. In the long run, the broadcast (BCCH) is preferably sent in all the time slots (10 to 17).
摘要:
The invention relates to a diversity combining method and to a receiver. In diversity combining, outputs (33) of a matched filter (25) of each branch are weighted with a quality estimate (32) which is generated in quality means (28b) in such a matter that the quality estimate (30) is proportional to the inverse of the interference strength (31) of the signal. The strength (31) of signal interference is generated in interference means (28c) e.g. in variance-like fashion from the differences between a reference signal (30) generated in reference signal means (28a) as the convolution of the estimated channel impulse response and the predetermined sequence and a signal received from the channel.
摘要:
A mobile communications system and method for use in a high-speed data transmission between a mobile station and a mobile communications network in the mobile communications system based on time division multiple access (TDMA). The mobile communications system is arranged to use a different frequency for a transmitting direction and a receiving direction. The mobile communications system includes a time-slot allocating mechanism arranged to allocate at least two time slots in at least one of the transmitting and the receiving direction for data transmission; a time-slot employing mechanism arranged to employ time-slots asymmetrically so that in the transmitting direction and in the receiving direction a number of the time-slots corresponds to a currently required data transmission rate in each respective direction, the time-slot employing mechanism further arranged to keep allocated ones of the time-slots that are not used for data transmission; and a time-slot selecting mechanism arranged to select ones of the time-slots used for the data transmission in each direction such that even at a maximum timing advance.