Htc Corporation

Te-Ming Chen

Chih-Hsiang Wu

Kundan Tiwari

Yu-Chih Jen

A communication device for handling a cell selection procedure comprises the at least one storage device storing instructions of receiving system information from a first cell of a network, wherein the system information indicates at least one core network (CN) type supported by the first cell; performing a radio resource control (RRC) connection establishment procedure with the first cell, after receiving the system information; indicating a CN type of the at least one CN type to the network during the RRC connection establishment procedure; selecting a second cell of the network in a cell selection procedure, after performing the RRC connection establishment procedure; performing a RRC connection reestablishment procedure with the second cell, if the second cell supports the CN type; and entering an idle mode or transmitting a RRC connection request message to the network, if the second cell does not support the CN type.

Device and method of handling a cell selection procedure

A communication device for handling a User Plane Evolved Packet System (EPS) Optimization procedure comprises a storage unit for storing instructions and a processing circuit coupled to the storage unit. The processing circuit is configured to execute the instructions stored in the storage unit. The instructions a RRC layer of the communication device receiving system information from a cell of a network; the RRC layer informing an EPS mobility management (EMM) layer of the communication device that a User Plane EPS Optimization functionality (e.g., a resume/suspend functionality) is allowed in the cell, when the system information indicates that the User Plane EPS Optimization functionality is allowed; and the RRC layer informing the EMM layer that the User Plane EPS Optimization functionality is not allowed in the cell, when the system information indicates that the User Plane EPS Optimization functionality is not allowed.

Device and method of handling user plane evolved packet system optimization procedure

A communication device for handling a cell selection procedure or a cell reselection procedure comprises a storage device and a processing circuit, coupled to the storage device. The storage device stores, and the processing circuit is configured to execute instructions of: measuring a plurality of power values corresponding to a plurality of beams of a cell; determining a first cell quality value according to an average of the plurality of power values; determining an offset value according to a number of the plurality of beams corresponding to the plurality of power values; determining a second cell quality value according to the first cell quality value and the offset value; and performing the cell selection procedure or the cell reselection procedure according to the second cell quality value.

Device and method of handling a cell selection procedure or a cell reselection procedure

A method of handling a RRC connection resume procedure between a first layer and a second layer of a communication device, the method comprises the first layer in a first idle mode with suspend indication transmit a first request message for resuming a RRC connection and at least one first identity parameter to the second layer, after receiving a suspend indication from the second layer; the second layer transmit the RRC connection resume request message to the network, after receiving the first request message from the first layer; the second layer receive a first RRC connection setup message from the network, after transmitting the RRC connection resume request message to the network; and the second layer transmit a first RRC connection setup complete message comprising the at least one first identify parameter to the network, after receiving the first RRC connection setup message from the network.

Device and method of handling radio resource control connection resume procedure

A communication device for handling system information comprises a storage unit for storing instructions and a processing circuit coupled to the storage unit. The processing circuit is configured to execute the instructions stored in the storage unit. The instructions comprise receiving a radio resource control (RRC) connection release message from a network; and acquiring changed system information, after receiving the RRC connection release message and before initiating a RRC connection establishment procedure.

Device and method of handling system information

A communication device for handling a user equipment (UE) access stratum (AS) context comprises a storage device for storing instructions and a processing circuit coupled to the storage device. The processing circuit is configured to execute the instructions stored in the storage device. The instructions comprise establishing a radio resource control (RRC) connection with a network; receiving the UE AS context from the network; receiving a RRCConnectionRelease message configuring the communication device to suspend the RRC connection and enter a RRC_IDLE state; storing the UE AS context, when receiving the RRCConnectionRelease message; restoring the UE AS context, resuming a signalling radio bearer(SRB) and transmitting a RRCConnectionResumeRequest message, when initiating a RRC connection resume procedure; receiving a RRCConnectionSetup message or a RRCConnectionReject message in response to the RRCConnectionResumeRequest message; and releasing the UE AS context and the SRBin response to the RRCConnectionSetup message or the RRCConnectionReject message.

Device and method of handling a user equipment access stratum context

A method of handling a RRC connection resume procedure between a NAS layer and a RRC layer of a communication device, comprising the RRC layer entering a RRC idle mode and camping on a first cell of a network; the NAS layer in a NAS idle mode with suspend indication transmitting a first request message to the RRC layer to resume a RRC connection; the RRC layer starting a timer and transmitting a first RRC connection resume request message to the network, after receiving the first request message from the NAS layer; the RRC layer reselecting a second cell of the network, when the timer is running; and the RRC layer informing the NAS layer a failure of resuming the RRC connection with a first suspend indication.

A communication device for handling a RRC connection comprises a storage unit and a processing circuit. The processing circuit is configured to execute instructions stored in the storage unit. The instructions comprise transmitting a first resume request message with a first resume identity for requesting a resume of the RRC connection to a first cell of a network; receiving a resume reject message from the first cell of the network; determining the first resume identity and at least one radio resource corresponding to the first resume identity are valid and keeping the first resume identity and the at least one radio resource, if the resume reject message comprises an indicator; and determining the first resume identity and the least one radio resource are invalid and releasing the first resume identity and the at least one radio resource, if the resume reject message does not comprise the indicator.

Device and method of handling radio resource control connection

A communication device of handling an offload parameter according to a cell selection comprises a storage unit for storing instructions and a processing means coupled to the storage unit. The processing means is configured to execute the instructions stored in the storage unit. The instructions comprise receiving at least one dedicated wireless local area network (WLAN) offload parameter and a dedicated WLAN offload timer from a first cell in a connected mode; receiving a radio resource control (RRC) connection release message from the first cell; starting the dedicated WLAN offload timer; performing a cell selection procedure in response to the RRC connection release message; selecting a second cell according to the cell selection procedure; stopping the dedicated WLAN offload timer; and releasing the at least one dedicated WLAN offload parameter.

Device and method of handling offload parameter according to cell selection

A communication device for handling system information comprises a storage unit for storing instructions and a processing means coupled to the storage unit. The processing means is configured to execute the instructions stored in the storage unit. The instructions comprise receiving at least one legacy system information block (SIB) including at least one first configuration in a cell; receiving at least one enhanced coverage (EC) SIB including at least one second configuration in the cell; and applying the at least one second configuration instead of the at least one first configuration, when the communication device is a low complexity communication device or is configured to apply the at least one EC SIB instead of the at least one legacy SIB wherein the at least one first configuration and the at least one second configuration are transmitted for a same communication function.

A mobile communications device with a wireless module and a controller module is provided. The wireless module performs wireless transmissions and receptions to and from a first service network being an LTE system. The controller module receives, from the first service network, a handover request message for handing over from the first service network to a second service network via the wireless module, and determines whether all configurations in the handover request message are compliable or whether there is a protocol error in the handover request message. Particularly, the second service network utilizes a wireless technology other than the LTE technology, and the handover request message is a MobilityFromEUTRACommand message. Also, the controller module transmits a connection re-establishment request message indicating a reconfiguration failure to the first service network via the wireless module, in response to one of the determinations is positive.

Apparatuses and methods for handling inter-Radio Access Technology (inter-RAT) mobility

A mobile communications device with a wireless module and a controller module is provided. The wireless module performs wireless transceiving to and from a first cellular station of a first service network and a second cellular station of a second service network, wherein the first service network is a long term evolution (LTE) network and the second service network is a Universal Mobile Telecommunications System (UMTS) network. The controller module receives a measurement request message from the first cellular station via the wireless module, performs a measurement on the second cellular station in response to the measurement request message and reports the measurement result to the first service network via the wireless module, wherein the second cellular station is previously not requested or configured by the first service network to be measured.

Apparatuses and methods for measurement reporting in a wireless communications system

A method of handling RRC connection reconfiguration for a mobile device in a wireless communication system is disclosed. The mobile device has a RRC connection. The method comprises receiving a first configuration in an RRC message from a network, wherein the first configuration is used for a first secondary cell; ignoring the first configuration when the mobile device is unable to comply with all of the first configuration; and maintaining the RRC connection.

Handling radio resource control connection reconfiguration and related communication device

A method of measurement reporting for a mobile device in a wireless communication system is disclosed. The method comprises the steps of including a first indicator associated with a first cell in a measurement report and sending the measurement report to a network entity of the wireless communication system. The first indicator informs the network entity about accessibility information of the first cell corresponding to the mobile device.

Growing community of inventors

Taoyuan County, Taiwan

Te-Ming Chen