92 results about "NodeB" patented technology

A radio network controller (RNC) transmits a power offset for controlling transmission power of an uplink high-speed dedicated physical control channel (HS-DPCCH) when a user equipment (UE) enters a handover region, in a mobile communication system including the RNC, a Node B connected to the RNC, and the UE located in one of at least two cell areas occupied by the Node B. The Node B transmits data to the UE over a high-speed downlink shared channel (HS-DSCH) and the UE transmits information indicating reception of the data to the Node B over the uplink HS-DPCCH. The RNC informs the UE of a power offset for determining a transmission power increment of the uplink HS-DPCCH, if it is determined that the UE is located in the handover region. The RNC informs the Node B of the power offset so that the Node B can determine a threshold value for determining information indicating reception of the data, depending on the power offset.

A method and system optimizes the transmission of a downlink reference signal (DLRS) in a wireless communication system that uses orthogonal division multiple access (OFDMA) for the downlink. Each Node-B (base station) is capable of transmitting the DLRS reference symbols in different subframes of the OFDM radio frame and changing both the number and location of the subframes in response to changing network conditions. The network conditions include the number of terminals being served by the Node-B and multiple access interference (MAI) from adjacent Node-Bs.

A method for supporting a communication service of an idle mode terminal located in a common routing area in a mobile communication system that includes a Node B, an Access Gateway (AGW), and a Home Subscriber Server (HSS), and has a Long Term Evolution (LTE) network and a 3^rd Generation (3G) network connected to each other to perform transmission/reception. The AGW receives tracking area information of the LTE network, including routing area information of the 3G network, from the idle mode terminal via the Node B. The AGW sends common routing area indication information and identification information of the terminal to the HSS if the routing area information is coincident with the tracking area information. The HSS stores the common routing area indication information and the identification information of the terminal, and sends a response message according to the indication information.

An access admission control method and system for and SAE/LTE system is provided for determining whether to accept or reject an access of a User Equipment (UE) to a Home evolved Node B (HeNB) based on the subscriber information of the UE. In an access admission control method according to the present invention, a HeNB or HeNB Gateway (HGW) transmits, when an access request message is received from a UE, the access request message to a Mobility Management Entity (MME) together with a CSG ID of the HeNB, and the MME determines, whether to accept or reject the access of the UE to the HeNB based on whether the CSG ID is contained in a white list associated with the UE.

Provided is a method for receiving allocated transmission resources by a User Equipment (UE) in a mobile communication system supporting a voice packet service. The method includes determining whether there is a state transition of a desired current transmission voice packet, using at least one state transition indication generation condition determined according to a codec mode of the UE; if it is determined that the state of the current voice packet has transitioned from a state of an old voice packet, generating state transition indication of the voice packet and transmitting the state transition indication to an Evolved Node B (ENB); and receiving allocated transmission resources corresponding to the state transition indication from the ENB, and transmitting the voice packet using the allocated transmission resources.

A system and method for performing a handover function in a mobile communication system. The system and method for controlling a User Equipment (UE) to perform a handover from a first Node B to a second Node B in a mobile communication system including a first Radio Network Controller(RNC) for managing the first Node B communicating with the UE and a second RNC for managing the second Node B to which the UE is to be handed over. The system and method comprise transmitting a handover request message including a resource to be assignment-requested to the second RNC over the first RNC; receiving resource information indicative of other assignable resources from the second RNC over the first RNC when the second Node B cannot assign the assignment-requested resource to the UE; and performing the handover using the received resource information.

An RNC determines parameters available for measurement of a synchronization signal and second Node B information from a second Node B, transmits the determined parameters to a first Node B during radio link setup and to a UE during radio bearer setup, and transmits parameter selection information to the first Node B and the UE, if it is recognized that measurement of the synchronization signal and the second Node B information is necessary. The first Node B changes a position of a downlink time period over which a downlink channel is transmitted from the first Node B to the UE and a position of an uplink time period over which an uplink channel is transmitted from the UE to the first Node B, according to parameters selected from the parameters. The UE receives the synchronization signal and the second Node B information in the remaining time periods except the changed downlink time period and the changed uplink time period among the plurality of time periods.

Disclosed is a method for maintaining uplink timing synchronization by a User Equipment (UE) in a mobile communication system, without uplink transmission of a preamble from a UE or without transmission of uplink timing difference information from an Evolved Node B (E-NB) to solve the inefficient use problem of radio resources, occurring due to periodic transmission of uplink signaling and downlink signaling during maintenance of the uplink timing synchronization, and a UE apparatus for the same.

A method and an apparatus reduce power used when a traffic load is low in a base station of a wireless communication system. The base station monitors a traffic load. When the traffic load is lower than a predetermined threshold and a Multiple Input Multiple Output (MIMO) mode is used to communicate with a mobile station, the MIMO mode is converted to a Single Input Multiple Output (SIMO) mode. The base station performs communication with the mobiles stations by using the SIMO mode. According to another embodiment, when the traffic load is lower than a predetermined threshold, the base station limits the number of Resource Blocks (RBs) that may be allocated to a coverage area of the base station. A Power Amplifier (PA) bias related to a transmission output of the base station is reduced based on the limited number of RBs, thereby saving power consumption of the base station.

The application relates to wireless transmission of load status information for load balancing among Home Node Bs (HNB) or Local Area Node Bs (LNB) for which an X2 interface is not available. In particular, an LNB may pretend to be a user equipment with a specific predefined user equipment ID value. A neighbouring LNB which receives a data packet with this user equipment ID value knows that the data packet contains load information monitored, by a neighbouring LNB.

Disclosed is a mobile telecommunication system in which packet data is transmitted over an uplink, and particularly a method and an apparatus for transmitting control information from a UE to a Node B. By multiplexing, several upper layer data units and MAC layer control information are included in a packet which the UE transmits during one transmission period in the uplink. A header of the packet accommodates multiplexing information, and thus the Node B uses the multiplexing information for demultiplexing upper layer data units from the packet. When the packet accommodates only the MAC layer control information, the UE does not insert the header into the packet, thereby reducing the packet size. The Node B then determines whether the packet includes only the control information or the upper layer data units together with the header.

A method and apparatus for selecting a wireless Local Area Network (LAN) within a cell to be accessed by a User Equipment (UE) in a mobile communication system are provided. The method includes performing, when a request for information regarding wireless LAN Access Points (APs) within the cell is received, a search for the wireless LAN APs and transmitting a report indicating a search result to a serving Evolved Node B (ENB); receiving, from the serving ENB, updated information on wireless LAN APs based on report indicating the search result; determining whether to perform a re-search for the wireless LAN APs based on the updated information on the wireless LAN APs; and performing, in response to determination to perform the re-search for the wireless LAN APs, the re-search and selecting APs to be accessed based on a result of the re-search.

A method for encoding a broadcast channel protocol data unit (BCH PDU) based on a broadcast control channel (BCCH) scheduling error in a universal mobile telecommunications system (UMTS) having a Node B and a radio network controller includes setting up a call between the radio network controller and the Node B to receive system information and scheduling information for a system information update from the radio network controller; initializing broadcast channel protocol data units and control information for every system frame number (SFN) at the Node B; and detecting the broadcast control channel scheduling error on the scheduling information for the system information update based on segment types of the system information when combining the system information for every system frame number. In case the broadcast control channel scheduling error is not detected, the broadcast channel protocol data units are encoded to be incorporated therein the system information.

A hard handover method and a Radio Network Controller (RNC) therefor in a mobile telecommunication system are provided which can improve the performance of an interfrequency hard handover. The RNC stores information about a timing difference between first and second Node Bs for supporting a soft handover. When receiving, from a User Equipment (UE), a request for a hard handover from the first Node B to the second Node B, the RNC computes information about a timing difference between the Node Bs for the hard handover using the information about the timing difference between the Node Bs stored at a soft handover time. The RNC commands the second Node B and the UE to operate for the hard handover using the computed timing difference information.

A base station (e.g., an evolved Node B) (300) determines whether the physical broadcast channel (PBCH), reference signals (SCH) and common reference signals (CRS) are transmitted (or awaiting transmission) on a secondary component carrier (Scell) with the cell (506). The determination information is transmitted to a user equipment (UE) (110) to inform the UE that the Scell transmissions do not include PBCH/SCH/CRS (508). As a result, the resource elements (REs) normally used to carry system information in the PBCH/SCH/CRS can be dynamically assigned (or reassigned) to the data channel. In this manner, the physical downlink shared channel (PBSCH) bandwidth can be increased by utilizing those resource elements that are normally reserved/assigned to the PBCH/SCH/CRS.

A method and apparatus for detecting a radio link (RL) failure for uplink (UL) and downlink (DL) in a long term evolution (LTE) wireless communication system including at least one wireless transmit/receive unit (WTRU) and at least one evolved Node-B (eNodeB) are disclosed. A determination is made as to whether an RL has an in-synchronization status or an out-of-synchronization status. An RL failure is declared if an out-of-synchronization status is detected.

The present invention provides an LTE (Long Term Evolution) trunking service and non-trunking service-coexisting measurement gap allocation method. The method includes the following steps that: trunking terminals in connection states all report G-RNTI (Group Radio Network Temporary Identifier) information; an eNB (Evoluted Node B) obtains the classification information of trunking terminals and non-trunking terminals according to the received G-RNTI information; the eNB allocates or re-allocates gap offset for the terminals according to allocation principles and based on the received classification information, wherein the allocation principles are that: the gap offset of all the trunking terminals is identical, the gap offset of the non-trunking terminals is different from the gap offset of the trunking terminals, and the gap offset of the non-trunking terminals is different from each other; and when carrying out service dispatching, the eNB avoids the measurement gap time of corresponding terminals. With the measurement gap allocation method of the invention adopted, the trunking services of the trunking terminals in connection states are not affected, the mobility of the terminals is not be affected, and resource waste can be avoided.

The present invention provides mobile base station and system suitable for mobile communication field. It contains signaling subsystem and transmission subsystem, wherein said signaling subsystem corresponding signaling control surface, said transmission subsystem corresponding transport network control surface, said signaling subsystem and transmission subsystem through transmission bearing establishing message distribution relating to transmission wireless resource and IP transmission bearing resource, establishing base station inner transmission channel; said relating to transmission wireless resource including uplink wireless link resource and downlink wireless link resource; said IP transmission bearing resource including said base station IP address and user data terminal number. The present invention can establish IP mode Node B interior transmission channel, and connection between Node B internal interface and Iub interface.

Provided is a method and apparatus for processing control plane data to enable an evolve Node B (eNB) and a User Equipment (UE) to transmit and/or receive user plane data through a WLAN carrier when the user plane data is transmitted by adding a WLAN radio resource to an E-UTRAN carrier in a radio access network (RAN) level. Particularly, provided is a method for a UE to transmit and receive data, the method including: receiving, from an eNB, wireless local area network (WLAN) cell configuration information which is for transmitting and receiving data using a WLAN radio resource; performing WLAN association based on the WLAN cell configuration information; transmitting a WLAN access confirmation message to the eNB; and receiving, from the eNB through a higher layer signaling, tunnel configuration information which is for the UE to set up a tunnel with the eNB through the WLAN radio resource.

Devices, systems, and methods are disclosed to directly connect a node of a Radio Access Network (RAN) with an Internet Protocol (IP) network. The node is provided with an interface to a broadband local loop network. Access to the local loop network or last mile enables the node to communicate directly with an IP network, including an IP Multimedia System (IMS) core. The node need not access a packet-switched core network via a controller. Embodiments include a Node B with an IP interface in a UMTS system and a Base Transceiver Station (BTS) with an IP interface in a GSM system.

The present invention provides new public measurement of E-PUCH Overload Ratio, which is defined as the following: the E-PUCH Overload Ratio: the ratio of times that the average interference of time gaps for loading E-PUCH source in every 5ms TTI is above ROT threshold to the total number of TTI in an appointed period is counted in a base station (Node B) in an appointed period. The new public measurement can support period reporting. By the present invention, interference sources in nearby regions which bring the overload ratio of some subdistrict to high can be detected by the tactic of grades of a base station controller (RNC), and the effect of the interference sources is reduced by reasonable measures. Disadvantages that the base station (Node B) can not know the information of the nearby regions, and a high overload ratio condition of the subdistrict can not be solved by controlling the interference of the nearby regions are solved well, and the HSUPA throughput ratio of a whole net can be effectively improved.

A method, a user equipment, an eNB are provided for controlling DRX in a wireless communication system. A method includes receiving, from a master evolved Node B (MeNB), an indication that a Slave eNB (SeNB) is to be monitored; and monitoring the SeNB, in response to the indicator. The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE).

The present invention discloses a network-side rescue method for service abnormality in a third-generation communication network. The steps of the rescue method include: after the wireless network controller judges that the wireless link is abnormal, the node B stops the downlink power transmission, and makes the terminal in the downlink direction If the wireless link fails, actively search for the cell and report the cell update message to the radio network controller; the radio network controller receives the cell update message, deletes the wireless link, establishes a new wireless link, and sends a cell update confirmation to the terminal The message enables the terminal to synchronize on the new wireless link, and sends physical channel reconfiguration, transport channel reconfiguration, and radio bearer reconfiguration completion messages to the network side. According to the feature that the terminal actively reports the cell update to the network side when the downlink is out of sync, the present invention saves the call drop when the wireless environment or the network is abnormal, so that the user does not need to re-initiate the call operation, and not only improves the call drop rate index of the system , and bring convenience to users.

The present invention relates to a method and an arrangement for controlling the user plane of a UMTS Terrestrial Radio Access Network, UTRAN, comprising a first edge node connected via a Transport Network Layer to a second edge node, by using Transport Network Layer, TNL, signalling. A radio link is set up by using the Node B Application Part between the first and second edge nodes of the UTRAN, RSVP-TE based TNL signalling messages are transmitted between said first and second edge nodes for each TNL flow, and each TNL flow is identified by using RSVP-TE messages, wherein the object SESSION and SENDER_TEMPLATE comprises an IP based 5-tuple flow information, which is adapted to be used as a TNL flow identity.

A method of adjusting the transmission time of data in a CDMA communication system. A UE (User Equipment) measures the time difference between the received time of a downlink DPCH (Dedicated Physical Channel) and the transmitted time of an uplink DPCH and reports it to an RNC (Radio Network Controller). The RNC transmits transmission time adjustment information to a node B and the UE if the time difference is out of a predetermined range. The node B then adjusts the transmission time of the downlink DPCH according to the transmission time adjustment information and transmits the downlink DPCH at the adjusted time. The UE receives the downlink DPCH by adjusting a search time for the downlink DPCH according to the transmission time adjustment information.