Fujitsu Corporation

Fujitsu Connected Technologies Limited

Yanling Lu

Haibo Xu

Weiwei Wang

Hua Zhou

Ningjuan Chang

Yi Wang

Lei Zhang

Lianhai Wu

Yuantao Zhang

Kevin Power

Yoshiaki Ohta

Mythri Hunukumbure

Zhaojun Li

Yueqiao Xu

Tao Qiu

Luciano Sarperi

A base station including: a judging unit configured to judge whether a band to be uplink adjusted includes only a band corresponding to a primary cell; and a transmitter configured to transmit a command for the band corresponding to the primary cell when the judging unit determines that the band to be uplink adjusted includes only the band corresponding to the primary cell, such that a timer relating to an uplink synchronization for the band corresponding to the primary cell is restarted.

Method for maintaining time advance timer, base station and terminal equipment

A User Equipment (UE) including: a plurality of Channel Quality Indicator (CQI) index tables, at least one of which includes one or more CQI index corresponding to a modulation of higher order that is not supported by the other CQI index table; a receiver configured to receive CQI index table indication information from a base station, the CQI index table indication information indicating which CQI index table to use for CQI calculation; and a processor configured to calculate a CQI index by using the CQI index table indicated by the CQI index table indication information.

Method and apparatus for configuring channel quality indicator and method and apparatus for configuring modulation and coding scheme

A terminal is capable dual connectivity with a base station, the terminal including: a processor configured to perform a process that change, release, or deactivate a bearer among Secondary Cell Group, and to trigger transmission of a Packet Data Convergence Protocol (PDCP) status report according to the process; and, a transmitter configured to transmit the PDCP status report.

Bearer management apparatus and method, and communication system

A method for processing a medium access control entity, UE and a communication system. The method includes: establishing a corresponding medium access control entity by UE for a second connectivity, so that there exists dual connectivity between the UE and network side including a first connectivity and the second connectivity; wherein the medium access control entity of the second connectivity at least includes a multiplexing or de-multiplexing module and a logic channel prioritization module.

Method for processing medium access control entity, UE and communication system

A communication system including a first base station, a second base station and user equipment (UE). The first base station including: a transmitter to transmit to the second base station a first signal comprising information about device-to-device (D2D) communication of the UE, a receiver to receive from the second base station a second signal including a configuration information, that includes information on a resource pool configured in a second mode by the second base station, or a resource location of a resource allocated in the first mode by the second base station; and a transmitter to transmit to the UE a Radio Resource Control (RRC) Message including the configuration information after receiving the second signal; the second base station to receive from the first base station the first signal to transmit the second signal; and a receiver configured to receive from the UE a third signal for wireless connection.

Resource selection apparatus and communication system

An apparatus and method to select a resource for performing device to device (D2D) communication from a resource pool configured in a second mode by a first eNB.

The embodiments of the present disclosure provide a bearer management apparatus and method, and a communication system. The method comprises: a user equipment (UE) receives an indication message, sent by a base station, for changing a bearer type of a bearer or releasing the bearer under dual connectivity; and changes the bearer type of the bearer or releases the bearer according to the indication message. Through the embodiments of the present disclosure, the UE configured with dual connectivity can seamlessly convert the bearer.

An MAC control element (CE) uplink configuration method and device, and communications system, the method includes: when an MAC CE is activated, determining, by user equipment (UE), whether an uplink grant of a serving cell in an authorization frequency band exists; and when the uplink grant of the serving cell in the authorization frequency band exists and can accommodate the MAC CE, allocating, by the UE and for the MAC CE, the uplink grant of the serving cell in the authorization frequency band. An embodiment of the present disclosure improves reliability for transmitting the MAC CE, in an LAA system, and reduces unnecessary latency or failure.

MAC control element uplink configuration method and device and communications system

A method for maintaining a time advance timer, a base station and terminal equipment, the method includes: judging by a base station whether a band to be uplink adjusted includes only the band where a primary cell is located; and transmitting by the base station a time advance command to the band where the primary cell is located if the band where the primary cell is located is only included, such that the time advance timer to which the band where the primary cell is located corresponds is restarted. The advantages exist in that by processing time advance timers by the base station or the terminal, the time advance timer to which the band where the PCell is located corresponds expires at last, thereby preventing interruption of communications of the terminal due to advanced expiration of the time advance timer to which the band where the PCell is located corresponds.

A method for processing a medium access control entity, UE and a communication system. The method includes: establishing a corresponding medium access control entity by UE for a second connectivity, so that there exists dual connectivity between the UE and network side including a first connectivity and the second connectivity; wherein the medium access control entity of the second connectivity at least includes a multiplexing or de-multiplexing module and a logic channel prioritization module. Resources of the UE may be efficiently managed, and waste of resources is reduced based on control optimization.

A method for configuring a User Equipment (UE) with a Channel Quality Index (CQI) table, the method includes: calculating a Precoding Matrix Indicator (PMI) and Rank Indication (RI) according to a channel estimated result; determining a configured CQI index table according to received CQI index table indication information transmitted by a base station, the base station configuring the CQI index table by selecting the CQI index table from at least two CQI index tables; and calculating a CQI index according to the calculated PMI and the RI using the configured CQI index table.

An apparatus for reporting connection setup request, includes a request transmitting unit configured to transmit a connection setup request for device-to-device communication to a network side when it is determined according to pre-obtained configuration information that the connection setup request for device-to-device communication can be transmitted to the network side.

Apparatus for reporting connection setup request

Embodiments of the present disclosure provide a method and apparatus for configuring channel quality indicator (CQI) and a method and apparatus for configuring modulation and coding scheme. The method for configuring CQI includes: configuring UE with a CQI index table by an eNB via CQI index table indication information, so that the UE determines the configured CQI index table according to the indication information, and calculates a CQI index according to calculated precoding matrix indicator (PMI) and rank indication (RI) by using the configured CQI index table. With the embodiments of the present disclosure, the eNB may configure different UEs with different '4-bit CQI tables' and/or 'modulation and TBS index tables' while keeping the CQI index and the Ibit number unchanged. Therefore, not only the CQI index and the Ibit number need not to be increased, but also normal configuration of the LTE system may be ensured.

A method and apparatus for updating a measurement identity and a system. The method includes: checking each measurement identity in a measurement identity list included in a pre-stored measurement configuration variable by terminal equipment after performing connection reconfiguration or connection re-establishment; and removing the measurement identity from the measurement configuration variable by the terminal equipment, if reporting configuration associated with the measurement identity includes a measurement event related to a frequency at which a cell belonging to a secondary cell group of the terminal equipment is operating and a measurement object related to the measurement event no longer satisfies a requirement of the measurement event or a cell for comparing in the measurement event no longer exists. With the method of the embodiments of the present disclosure, meaningless measurement by the terminal equipment is reduced, power consumption is lowered, and interference on normal communications is reduced.

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Beijing, China

Yanling Lu