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355 results about "Data radio bearer" patented technology
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Efficient status reporting for ues in dual connectivity during mobility
ActiveUS20160212661A1Unnecessary data is preventedAvoid forwardingError preventionModulated-carrier systemsData radio bearerComputer science
The invention relates to a method for efficiently performing a Se NB change for a UE in dual connectivity. When reconfiguring a data radio bearer going via the Se NB to another target base station, the UE may compile a PDCP status report comprising status information for all of the data radio bearer going via the Se NB, accompanied respectively by a radio bearer ID to identify the radio bearer to which the status report information pertains. Further, the PDCP status report is directly transmitted by the UE to the Me NB to avoid the backhaul delay between the Se NB and the Me NB; this may be done by using a signaling radio bearer (e.g. RRC message), or data radio bearer to the Me NB (e.g. PDCP control PDU), or by using a physical channel transmission to the Me NB (e.g. MAC CE).
Owner:PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
Method for Synchronizing PDCP Operations after RRC Connection Re-establishment in a Wireless Communication System and Related Apparatus Thereof
ActiveUS20090316664A1Time-division multiplexConnection managementData radio bearerCommunications system
A method used in an E-UTRAN for synchronizing PDCP operations after a RRC connection re-establishment procedure with a user equipment (UE) is provided. The method includes: initiating an RRC reconfiguration procedure to resume all radio bearers other than a signaling radio bearer 1 (SRB1) when an RRC connection is re-established; re-transmitting a designated group of PDCP Service Data Units (SDUs) to the UE when a data radio bearer (DRB) mapped on Radio Link Control (RLC) Acknowledged Mode (AM) is resumed.
Owner:HTC CORP
Method and apparatus for supporting multiple frequency bands efficiently in mobile communication system
ActiveUS20130044708A1Reduce signaling overheadNetwork traffic/resource managementConnection managementData radio bearerTransfer procedure
A method and an apparatus for transmitting a small size data packet efficiently while reducing signaling overhead in a mobile communication system are provided. The method includes determining to apply a low security transfer procedure, transmitting, to a base station, a Radio Resource Control (RRC) connection request message including a temporary Data Radio Bearer (DRB) request to which Access Stratum (AS) security is not applied, receiving an RRC connection setup message, including a temporary DRB configuration, from the base station, and transmitting an Internet Protocol (IP) packet over the temporary DRB.
Owner:SAMSUNG ELECTRONICS CO LTD
Method and system to enable secure communication for inter-enb transmission
ActiveUS20160029213A1Avoid key stream repetitionConnection securityKey distribution for secure communicationNetwork traffic/resource managementSecure communicationData radio bearer
The embodiments herein provide a method and system for creating a secure connection for a User Equipment (UE) in a wireless network including a UE, carrier aggregated with at least one first serving frequency served by a first eNB and at least one second serving frequency served by a second eNB. A unique non-repetitive security base key associated with the second eNB is generated using a freshness parameter and security key associated with the first eNB. The use of a different freshness parameter for each security base key derivation avoids key stream repetition. Further, a user plane encryption key is derived based on the generated unique non-repetitive security base key associated with the second eNB for encrypting data transfer over at least one data radio bearer.
Owner:SAMSUNG ELECTRONICS CO LTD
Wireless link recovery method and device
InactiveCN104219787AShorten recovery timeReduce downtimeConnection managementRecovery methodData radio bearer
An embodiment of the invention relates to the technical field of wireless communication, particularly to a wireless link recovery method and device and solves the conventional problem that under the dual connectivity network architecture, when failure occurs to the wireless link between UE (user equipment) and MeNB (master eNB), during the reconstruction of the wireless link, the break period of a data radio bearer is long. According to the arrangement, when the failure occurs to the wireless link of the MeNB, if serving cells of SeNB (secondary eNB) meet quality requirements of the channel, the UE performs a RRC (radio resource control) reconstruction by selecting one from the serving cells meeting the channel quality requirements rather than select the cell. Thus the wireless link recovery time is shortened, the break period of the data radio bearer is shortened, and the system performance is further improved.
Owner:CHINA ACAD OF TELECOMM TECH
Method for realizing data forwarding and donor base station
InactiveCN101730032AForward to normal implementationConnection managementCommmunication supplementary servicesGeneral Packet Radio ServiceData radio bearer
The invention discloses a method for realizing data forwarding, and a donor base station. The method comprises the following steps of: in a handover process of user equipment (UE), when a forwarding path of a bearer which needs to perform the data forwarding relates a Un interface between the donor base station and a relay node, establishing one or more data radio bearers on the Un interface; establishing a one-to-one corresponding relation between the established data radio bearer and a general packet radio service tunneling protocol (GTP) tunnel on the forwarding path of the bearer which needs to perform the data forwarding; and performing forwarding on the bearer which needs to perform the data forwarding through the established data radio bearer and a corresponding GTP tunnel. The technical scheme of the invention can realize the data forwarding in the handover process of the UE when the forwarding path of the bearer which needs to perform the data forwarding relates to the Un interface.
Owner:NEW POSTCOM EQUIP
Method and system for realizing integrality protection
ActiveCN102487507ATime point to avoidReduce air loadNetwork topologiesConnection managementData radio bearerNetwork packet
Owner:ZTE CORP
Method of transmitting small amount of uplink data and method of receiving small amount of uplink data
ActiveUS20120163296A1Reducing data transmission timeReduce processConnection managementOrthogonal multiplexData radio bearerData transmission
Disclosed is a method of transmitting and receiving a small amount of uplink data. A method of transmitting uplink data includes detecting uplink data to be transmitted, determining whether or not uplink data transmission is necessary only once, transmitting a service request message including information instructing that a data radio bearer not be generated when it is determined that uplink data transmission is necessary only once, starting a radio resource control (RRC) connection setup process, and performing the uplink data transmission once using a signaling radio bearer without generating the data radio bearer with reference to the information instructing that the data radio bearer not be generated, during the RRC connection setup process, when it is determined that \ uplink data transmission is necessary only once.
Owner:ELECTRONICS & TELECOMM RES INST
Method of handling radio baerrer resumption, wireless communication device and wireless communication system thereof
InactiveUS20100184438A1Connection managementWireless commuication servicesSuccessful completionCommunications system
A method of handling radio bearer resumption is illustrated in an exemplary embodiment of the present invention to prevent the transmission stall and the reception on the suspended signaling radio bearer and the suspended data radio bearers. First the wireless communication device receives the connection reconfiguration message including the handover message. Second the wireless communication device determines whether the received connection reconfiguration message including the handover message is the first received connection reconfiguration message including the handover message after a successful completion of a connection re-establishment procedure. Third, the wireless communication device resumes at least one of the suspended signaling radio bearer and the suspended data radio bearers when the received connection reconfiguration message including the handover message is the first received connection reconfiguration message including the handover message after the successful completion of the connection re-establishment procedure.
Owner:HTC CORP
Data transmission method, user equipment and base station
InactiveCN103875275ARealize transmissionLoad balancingNetwork traffic/resource managementData radio bearerData transmission
Provided are a data transmission method, user equipment and a base station. The data transmission method can comprises: UE receives auxiliary configuration information sent from PeNB and the auxiliary configuration information comprises information of a second DRB allocated by SeNB for the UE in SCell; the SeNB manages the SCell, and the SCell is a auxiliary zone of the UE; the UE binds a first EPS-Bearer and the second DRB, and before the first EPS-Bearer and the second DRB are bound, the first EPS-Bearer and a first DRB are bound, the first DRB carries out wireless bearing of data allocated by PeNB for the UE in PCell, the PeNB manages the PCell, the PCell is a main zone of the UE; the UE uses the second DRB bound with the first EPS-Bearer to transmit data flow.
Owner:HUAWEI TECH CO LTD
Radio communication system and method of resource configuration optimization during switching in coordination set
ActiveCN102457970AAvoid duplicationImprove efficiencyConnection managementConfiguration optimizationData radio bearer
The invention discloses a radio communication system and a method of resource configuration optimization during switching in a coordination set in the system, used for carrying out resource configuration optimization during switching in the coordination set. In the process of switching in a joint processing coordination set, when a target cell learns that a switched user is a coordinated user, the switched user is directly judged to be accessed and only a signalling radio bearer is established; after finishing the resource configuration, the target cell generates a radio resource control connection reconfiguration message comprising the signalling radio bearer and transmits the message to user equipment through a source cell; the user equipment carries out resource configuration, maintains a data radio bearer established in the coordinated process and establishes the signalling radio bearer. According to the invention, unnecessary steps are omitted, operations of repeated establishment and resource deletion are avoided and the efficiency of a terminal and a base station is improved.
Owner:XUZHOU JIANGMEI TECH
Systems and methods for dual-connectivity operation
ActiveCN105917727AAccounting/billing servicesNetwork traffic/resource managementTelecommunicationsData radio bearer
A method for receiving a radio resource control (RRC) message by a user equipment (UE) is described. The method includes receiving, from a first evolved Node B (eNB), an RRC connection reconfiguration (RRCConnectionReconfiguration) message including data radio bearer (DRB) configuration parameters for remapping a DRB that is established on a master cell group (MCG) to a secondary cell group (SCG).
Owner:SHARP KK
Method of building radio bearer in dual-connection network and system
InactiveCN104797000AEnsure normal business transmissionMinor changesConnection managementData radio bearerBuilding process
The invention discloses a method of building a radio bearer in a dual-connection network and a system, which relates to the technical field of radio communication. The problem of building a DRB (Data Radio Bearer) between a SeNB and UE in the dual-connection network by adopting a 3C frame can be solved. In certain trigger conditions, a MeNB can initiate a DRB building process between the SeNB and the UE, whether the MeNB carries out an EPS (Evolved Packet System) bearing shunt process and when the MeNB carries out the EPS bearing shunt process have no influence on core network processing, changes on the prior system are reduced maximally, the realization method is simple, advantages of the dual-connection technology are used thoroughly, and normal service transmission of the user can be ensured.
Owner:POTEVIO INFORMATION TECH
Method and apparatus for performing backoff in wireless communication system
ActiveUS20150282214A1Avoid cloggingWireless commuication servicesData radio bearerCommunications system
A method and apparatus for performing backoff in a wireless communication system is provided. A user equipment (UE) identifies a prioritized access, receives a backoff parameter from a network, and determines whether or not to apply the received backoff parameter according to the prioritized access. The prioritized access corresponds to one of emergency access, high priority access, control element / information in media access control (MAC), radio link control (RLC) or packet data convergence protocol (PDCP), data radio bearer (DRB) for voice / video service, signaling radio bearer (SRB) 0, SRB 1, SRB 2, multimedia telephony service (MMTEL)-voice, MMTEL-video, and voice over long-term evolution (VoLTE).
Owner:LG ELECTRONICS INC
Method and device for protecting data on Un interface
ActiveCN102448058APerfect security protectionMeet the needs of security protectionNetwork traffic/resource managementMultiple keys/algorithms usageData radio bearerBusiness data
The invention relates to a method and a device for protecting data on a Un interface. The method comprises the following steps of: consulting corresponding integrality protection algorithms and encryption algorithms for signaling data born in a signaling radio bearer (SRB) on the Un interface, signaling data born in data radio bearer (DRBs), and business data born in DRBd; and adopting the consulted integrality protection algorithms and the encryption algorithms to protect the safety of the signaling data born in the SRB, the signaling data born in the DRBs and the business data born in the DRBd. According to the method and a system, provided by the embodiment of the invention, three types of data born by the RB on the Un interface are protected by the corresponding integrality protection algorithms and the encryption algorithms, so that the safety protection of the data on the Un interface is more complete, and the requirements of data born by the different RB on the safety protection can be met.
Owner:NOKIA TECHNOLOGLES OY
Transmission method and equipment of IP data packet
ActiveCN102612095ARealize QoS GuaranteeNetwork traffic/resource managementConnection managementQuality of serviceData radio bearer
The invention discloses a transmission method and equipment of an IP data packet. The transmission method comprises the following steps: AP (Access Point) equipment acquires an IP data packet which needs to be sent to UE (User Equipment); the AP equipment determines a data radio bearer (DRB) corresponding to the IP data packet by using the type information of the IP data packet; and the AP equipment sends the IP data packet to the UE through the DRB. According to the embodiment of the invention, under the condition that the AP equipment is locally accessed into an IP network or accessed into the IP network directly through an IP gateway, the QoS (Quality of Service) guarantee of the IP data packet in idle transmission is achieved on the basis of direct mapping between the type information and the data radio bearer.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Network connection method and system
ActiveUS20130148607A1Reduce signalingReduce signaling overheadWireless commuication servicesTransmissionTelecommunicationsData radio bearer
The present invention discloses a network connection method and system. The method includes: grouping a plurality of terminals, allocating group identities, and establishing a mapping relationship between the group identities and terminal identities; establishing a group-based signaling radio bearer and a group-based data radio bearer for each group; allocating, when a terminal in each group access a network, the terminal the group-based signaling radio bearer and group-based data radio bearer corresponding to the group to which the terminal belongs according to a mapping relationship between a group identities and a terminal identity, so that the terminals initiate network access by using the group-based signaling radio bearer and the group-based data radio bearer. The signaling overhead of establishing signaling connection and data bearer may be reduced though the technical solution of the present invention.
Owner:HUAWEI TECH CO LTD
Indicating radio capability changes in an inactive state
Apparatuses, methods, and systems are disclosed for indicating radio capability changes in an inactive state. One method includes detecting a trigger to change radio capabilities of a UE in an inactive state; transmitting a first message comprising information indicating to change the radio capabilities of the UE, wherein the first message comprises a first access stratum message; receiving a second message, wherein the second message comprises information corresponding to an action, and the second message comprises a second access stratum message; receiving a third message comprising information requesting the radio capabilities of the UE; transmitting a fourth message comprising the radio capabilities of the UE; and receiving a fifth message comprising information for configuring a radio resource control of the UE and activating data radio bearers of the UE, wherein the fifth message is determined based on the radio capabilities of the UE.
Owner:LENOVO (SINGAPORE) PTE LTD
Method and apparatus for managing data radio bearers for dual connectivity in wireless communication system
ActiveUS20160135174A1Radio resource can be effectivelyEfficient use ofConnection managementWireless commuication servicesCommunications systemData radio bearer
A method and apparatus for establishing / modifying / releasing data radio bearers (DRBs) in a wireless communication system is provided. A master eNodeB (MeNB) in dual connectivity transmits a request message, which includes information on E-UTRAN radio access bearers (E-RABs) to be set up / modified / released, to a secondary eNB (SeNB) in dual connectivity through an X2 interface;\, and receives a response message, which includes radio resource control (RRC) connection reconfiguration related information based on the E-RABs to be set up / modified / released, as a response to the request message from the SeNB through the X2 interface.
Owner:LG ELECTRONICS INC
Channel accessing method and device in wireless communication system
ActiveUS20170257780A1Reducing initial access time delayEfficient and rapid accessConnection managementRadio transmissionData radio bearerCommunications system
Owner:SAMSUNG ELECTRONICS CO LTD
Method for realizing bearer switching, terminal and eNB
InactiveCN106993313AImprove experienceNo drop in data throughputConnection managementData radio bearerData transmission
The invention discloses a method for realizing bearer switching, a terminal and an eNB. The method comprises the following step: when at least one data wireless bearer of the terminal needs to be switched from a source eNB to a target eNB, keeping data transmission between the terminal and the source eNB for the data wireless bearer needing to be switched in a bearer switching process till the terminal accesses the target eNB successfully. Through the technical scheme for realizing bearer switching provided by the invention, uplink data of a user plane data bearer needing to be switched in the terminal are always transmitted to the source eNB before the terminal succeeds in random access to the target eNB, and the terminal immediately starts working of a new wireless protocol stack while deleting an original wireless protocol stack of a switched bearer after the terminal succeeds in random access to the target eNB, thereby preventing long-time significant decrease in data throughput during execution of a bearer switching program, and improving the user experience.
Owner:ZTE CORP
Data transmission method, wireless network node and communication system
ActiveCN106332048AReduce the number of transfersReduce demandNetwork traffic/resource managementConnection managementCommunications systemRadio networks
The embodiment of the invention discloses a data transmission method, and the method comprises the following steps that a first wireless network node reminds the bearing type of a downlink data packet; the first wireless network node transmits the downlink data packet to a second wireless network node under the condition that the bearing type is the signaling radio bearing SRB so that the second wireless network node performs the function of a grouped data aggregation protocol PDCP layer for the downlink data packet; or the first wireless network node performs a function of a PDCP layer for the downlink packet and transmits the processed downlink packet to the second radio network node under the condition that the bearing type is a data radio bearer DRB. Correspondingly, the embodiment of the present invention also discloses a wireless network node that can reduce transmission bandwidth and time delay requirements.
Owner:HUAWEI TECH CO LTD
Double-connection radio bearer migration treatment method, double-connection radio bearer migration method and double-connection radio bearer migration device
ActiveCN104219722AAddress issues such as securityImprove securityWireless communicationWirelessData radio bearer
The invention provides a double-connection radio bearer migration treatment method, a double-connection radio bearer migration method and a double-connection radio bearer migration device. The double-connection radio bearer migration treatment method comprises the following steps of distributing new data wireless bearer marks for a data wireless bearer to be migrated by using a main base station; and transmitting information for informing user equipment of migrating the data wireless bearer towards the user equipment by using the main base station. The new data wireless bearer marks are different from data wireless bearer marks used by the main base station and data wireless bearer marks used by a slave base station; and the information carries the new wireless bearer marks. According to the technical scheme, the problem that the safety is low due to the fact that a secret key of a double-connection wireless bearer is exposed in a process of migration between the base stations in the prior art is solved, and the safety of the double-connection bearer of a terminal is improved.
Owner:ZTE CORP
Method of modifying radio bearer in dual-connection network and system
InactiveCN104796948AEnsure normal business transmissionEasy to implementNetwork traffic/resource managementData radio bearerTelecommunications
The invention discloses a method of modifying a radio bearer in a dual-connection network and a system, which relates to the technical field of radio communication. The problem of modifying related parameters of QoS of a DRB (Data Radio Bearer) between a SeNB and UE in the dual-connection network by adopting a 3C frame can be solved. In certain trigger conditions, a MeNB can send a bearer modifying instruction to the SeNB to instruct the SeNB to complete DRB modifying with the UE, the realization method is simple, advantages of the dual-connection technology are used thoroughly, and normal service transmission of the user can be ensured.
Owner:POTEVIO INFORMATION TECH CO LTD
Data retransmission method and device
ActiveCN104486051ALow transfer rateAvoid wastingError prevention/detection by using return channelNetwork traffic/resource managementData radio bearerAir interface
The invention discloses a data retransmission method and a data retransmission device. The method comprises the following steps of when a PDCP (Packet Data Convergence Protocol) is established, acquiring an RLC (Radio Link Control) mode of a DRB (Data Radio Bearer), and counting PDUs (Protocol Data Units) needing to be retransmitted; if the RLC mode of the current DRB is an acknowledge mode and the number of the PDUs needing to be retransmitted is greater than a set threshold value, reducing the retransmission rate, and sending the PDUs needing to be retransmitted according to the reduced retransmission rate. According to the method and the device, the data retransmission rate of the PDCP within a period of time in the early stage of data retransmission can be reduced, a state report sent by the PDCP of UE (User Equipment) is waited in the retransmission process, and data which truly need to be retransmitted are re-determined, so that waste of a great number of air interface resources caused by transmission of excess PDUs which are transmitted before reestablishment is avoided.
Owner:COMBA TELECOM SYST CHINA LTD
Method for transmitting and receiving data through relay in wireless communication system and apparatus therefor
InactiveUS20190394816A1Efficient configurationGuaranteed normal transmissionConnection managementCommunications systemData radio bearer
Disclosed herein are a method and an apparatus for transmitting and receiving, by a base station, data of remote user equipment (remote UE) through relay UE in a wireless communication system. According to the present invention, there may be provided a method for transmitting and receiving data through a relay including: receiving an S1 application protocol (S1AP) message for establishing an E-UTRAN radio access bearer (E-RAB) of the remote UE from a mobility management entity (MME), transmitting a first RRC message for establishing a data radio bearer (DRB) corresponding to the E-RAB to the relay UE, receiving a first RRC response message as a response to the first RRC message from the relay UE, and transmitting an S1AP response message as a response to an S1AP message to the MME if the first RRC response message includes a local identifier of the remote UE allocated by the base station, and an apparatus therefor.
Owner:LG ELECTRONICS INC
Method, equipment and system for transmission control on user equipment
ActiveCN104519529AFirmly connectedGuaranteed normal switchingPower managementNetwork traffic/resource managementData radio bearerData transmission
The invention aims to provide a method, equipment and a system for transmission control on user equipment. The method includes: when the user equipment forms dual connectivity with a corresponding macro eNB and a small eNB, determining transmission status information corresponding to a DRB (data radio bearer) established with the user equipment through the user equipment, sending the transmission status information to the macro eNB, then determining transmission configuration information corresponding to the user equipment through the macro eNB according to the transmission status information, and performing transmission configuration on the user equipment according to the transmission configuration information. Compared with the prior art, the method, equipment and system has the advantages that on the basis of dual connectivity, PDU needing transmission or retransmission is acquired according to the transmission status information of the user equipment or the macro eNB performs traffic control on the user equipment according to transmission status information, so that connection establishment and switching of the user equipment, the macro eNB and the small eNB are guaranteed, reliability in data transmission is improved, efficiency of resource allocation of the system is improved, power consumption of the system is lowered and the like.
Owner:ALCATEL LUCENT SHANGHAI BELL CO LTD +1
Method and routing bridge for maintaining neighbourship in TRILL (Transparent Interconnection of Lots of Links) network
ActiveCN102387078AEasy to handleReduce in quantityNetworks interconnectionData radio bearerInterconnection
The invention discloses a method for maintaining neighbourship in a TRILL (Transparent Interconnection of Lots of Links) network; the method comprises the following steps of: receiving Hello message sent by other RB (Routing Bridge) in the same link in the TRILL (Transparent Interconnection of Lots of Links) network by the current RB (Routing Bridge), performing DRB (Data Radio Bearer) election according to the received Hello message; selecting the specified VLAN (Virtual Local Area Network) and periodically sending the Hello message to inform the other RB (Routing Bridge) within the specified VLAN (Virtual Local Area Network) if the current RB (Routing Bridge) is elected as DRB (Data Radio Bearer); if the other RB (Routing Bridge) is elected as DRB (Data Radio Bearer), receiving the Hello message with the specified VLAN (Virtual Local Area Network) sent by the DRB (Data Radio Bearer), acquiring the specified VLAN (Virtual Local Area Network) and periodically sending the Hello message within the specified VLAN (Virtual Local Area Network). The invention further discloses an RB (Routing Bridge) capable of reducing the quantity of the sent Hello messages based on the same inventive concept, reduces the consumption of the link bandwidth, and improves the CPU (Central Processing Unit) processing capability of the RB (Routing Bridge).
Owner:NEW H3C TECH CO LTD
Method and apparatus for establishing drb
InactiveUS20190349803A1Network traffic/resource managementConnection managementQuality of serviceCommunications system
Provided are a method for establishing a data radio bearer (DRB) by a base station in a wireless communication system and an apparatus for supporting the same. The method may comprise the steps of: receiving, from an access and mobility function (AMF), quality of service (QoS) information for establishing a default DRB; and establishing the default DRB on the basis of the QoS information.
Owner:LG ELECTRONICS INC
Facilitating quality of service flow remapping utilizing a service data adaptation protocol layer
ActiveUS20190320362A1Well formedNetwork traffic/resource managementQuality of serviceData radio bearer
Aspects directed towards Quality of Service (QoS) flow remapping are disclosed. In an example, upon detecting a mapping reconfiguration of a first QoS flow from a first data radio bearer (DRB) to another DRB, a Service Data Adaptation Protocol (SDAP) control protocol data unit (PDU) is generated indicating that a final SDAP data PDU associated with the first QoS flow has been transmitted on the first DRB. The SDAP control PDU is then transmitted via the first DRB. In another example, upon detecting a mapping reconfiguration of a first QoS flow from a first DRB to another DRB, an end marker parameter is set in an SDAP header of a first SDAP data PDU received from an upper layer after the mapping reconfiguration indicating that the first SDAP data PDU is a final SDAP data PDU associated with the first QoS flow transmitted on the first DRB.
Owner:QUALCOMM INC
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