Abstract:
The present invention relates to a method of UE mobility management and a mobile communication system of implementing this method, where the system includes: a core network communicating with the universal terrestrial radio access network (UTRAN) via the Iu interface; UTRAN consisting of multiple radio network systems (RNS) and communicating with one or more UE via the Uu interface, and each said RNS comprising a radio network controller (RNC) and one or more nodes communicating with said RNC via the Iub interface, while communication between RNC being performed via the Iur interface; UTRAN controlling UE mobility management through radio resource control (RRC) signalling of the Uu interface; and said method includes: UE transmitting uplink RRC signalling information to a first RNC to request UE mobility management; the first RNC receiving and forwarding said uplink RRC signalling information to the core network; the core network forwarding transparently said uplink RRC signalling information to a second RNC; and the second RNC receiving and utilizing said uplink RRC signalling information to perform the required mobility management.
Abstract:
The application discloses a method for resource management and a method for traffic guidance in a multimode radio network comprising a plurality of mobile communication networks of different modes that share wideband transmission links and sites of centralized base stations, the centralized base stations of the plurality of mobile communication networks being connected to a common base station controller or a common radio networks controller. A mobile terminal is made to perform real-time handover among different mobile communication networks, or, the allocation of the resources among the plurality of mobile communication networks is adjusted in real time, according to at least one of the following factors or the combination thereof: the multimode supporting capability of the mobile terminal, traffics of cells, operation policies and real-time operating conditions of the plurality of networks.
Abstract:
The invention provides a wireless base station connected to a wireless network control device, another wireless base station and a subscriber unit, comprising a first communication device for receiving/transmitting downlink data frames/uplink data frames from/to the wireless network control device; a second communication device for transmitting/receiving downlink wireless signals/uplink wireless signal to/from the subscriber unit; a channel processing device for processing the downlink data frames/uplink wireless signals into downlink wireless signals/uplink data frames; and a signal distribution unit for supplying the downlink data frames and the uplink wireless signals to the channel processing device for processing, wherein the base station further comprising a third communication device for communicating with the another base station, and the signal distribution unit further comprising forwarding control means for transmitting the downlink data frames or uplink wireless signals to the another wireless base station and receiving corresponding downlink wireless signals or uplink data frames from the another wireless base station, through the third communication device.
Abstract:
A method of Radio Access Bearer for IP Multimedia Session in UMTS Network, including: establishing an IP Multimedia Session between the User Equipment and the IP Multimedia Subsystem; mapping associated SDP parameters into authorized IP QoS parameters, abstracting media IP packet format information from the associated SDP parameters, and transferring, said authorized IP QoS parameters and said media IP packet format information to the GPRS packet data network; mapping said authorized IP QoS parameters into authorized UMTS QoS parameters, and transforming the media IP packet format information into associated messages of RANAP; mapping media characteristics and application demands into UMTS QoS parameters by the User Equipment, and sending them to the GPRS packet data network, to compare the UMTS QoS parameters from the User Equipment with said authorized UMTS QoS parameters, and approving the PDP Context activation or update based on the comparison result by the UMTS Radio Access Network. The method according to the present invention causes the method for implementing Unequal Error Protection to be compliant with the UMTS end-to-end IP QoS structure by using the exiting SBLP-based QoS control mechanism in IMS domain, without modifying the framework of the exiting 3GPP protocol.
Abstract:
The present invention provides a method for using Differentiated Services (DiffServ) to implement the IP packet classification and the marking of a Differential Service Code Point (DSCP) for the quality of service (QoS) in the wireless access network of the IP-based universal mobile telecommunication system (UMTS). The present invention makes a classification to the data stream which is outgoing from the Iub interface at the Node B side, data stream which is outgoing from the Iub interface at the RNC side and data stream which is outgoing from the Iur interface at the RNC side according to the direction and the process of the respective data streams, and assigns and adjusts the priority of the data stream classified according to the principles for optimizing QoS and radio resources. When the network is congested, the data stream with a high level will have a higher priority than that with a lower level in queue and source occupancy, and the packet with a lower priority in the same queue is discarded. The DiffServ only contains a limited number of service levels and has little condition information, thus easy to be achieved and expanded.
Abstract:
The present invention sets forth a method for performing packet combined scheduling of dedicated transport channels for packet services in UMTS downlinks, comprising the following steps: a) prior to each DCH scheduling period, performing pre-selection processing of a transport format combination of each DPCH according to the predetermined restriction conditions for the DCH combined packet scheduling, so as to determine a usable transport format combination set for each DPCH; b) restricting a total downlink transmit power of DCHs for NRT packet services to a schedulable power not exceeding a schedulable power value in the estimation of a total downlink power during said scheduling period; c) based on the fairness of DCH transportation and the QoS requirements of the DCH-borne services, determining weighted values which the respective DCHs correspond to in the optimization of the DCH combined packet scheduling; and d) based on the results of steps a), b), and c), calculating the maximum number of bits which each DCH is schedulable to output, using a 0-1 programming algorithm. The present invention guarantees the fairness, priority and QoS (Quality of Service) of different DCHs and can achieve maximum total data throughput.
Abstract:
The present invention provides an apparatus and method of radio transmission of real-time IP packets using header compression technique. In the present invention, the size of a compressed header of an RTP packet can be adapted to length types required by the system by adding a radio link adaptation unit to the existing PDCP entity. The method comprises header-compressing the RTP packets, to obtain header-compressed RTP packets having a plurality of different header compression lengths; pre-configuring header compression lengths and length types required by the system; and PDU-size adapting the plurality of different header compression lengths of the header-compressed RTP packets, so as to comply with said lengths and length types required by the system.
Abstract:
The present invention provides a method for using Differentiated Services (DiffServ) to implement the IP packet classification and the marking of a Differential Service Code Point (DSCP) for the quality of service (QoS) in the wireless access network of the IP-based universal mobile telecommunication system (UMTS). The present invention makes a classification to the data stream which is outgoing from the Iub interface at the Node B side, data stream which is outgoing from the Iub interface at the RNC side and data stream which is outgoing from the Iur interface at the RNC side according to the direction and the process of the respective data streams, and assigns and adjusts the priority of the data stream classified according to the principles for optimizing QoS and radio resources. When the network is congested, the data stream with a high level will have a higher priority than that with a lower level in queue and source occupancy, and the packet with a lower priority in the same queue is discarded. The DiffServ only contains a limited number of service levels and has little condition information, thus easy to be achieved and expanded.
Abstract:
The present invention discloses a method for resource allocation and rate control of dedicated channels in a Wideband Code Division Multiple Access (WCDMA) communication system, the method being characterized by comprising: a) the step of determining channel states of downlink DCH channels for non-realtime data services; b) the step of determining states of the users using said downlink DCH channels; and the step of correlating the channel states determined in step a) with the user states determined in step b), and dynamically allocating the DCH channels with certain rates to the users in the different User states according to a wireless measurement result measured by a current transmission channel and based on the priority and fairness requirements. According to the present invention, the method effectively realizes the bandwidth resource allocation and rate control, improves the radio resource availability and provides users, to the maximum extent, with a data service bandwidth as high as possible.
Abstract:
The present invention provides an apparatus and method of radio transmission of real-time IP packets using header compression technique. In the present invention, the size of a compressed header of an RTP packet can be adapted to length types required by the system by adding a radio link adaptation unit to the existing PDCP entity. The method comprises header-compressing the RTP packets, to obtain header-compressed RTP packets having a plurality of different header compression lengths; pre-configuring header compression lengths and length types required by the system; and PDU-size adapting the plurality of different header compression lengths of the header-compressed RTP packets, so as to comply with said lengths and length types required by the system.