Abstract: A communication device of handling power saving 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 transmitting a first message comprising capability information to a first network entity, wherein the capability information indicates a plurality of power saving modes of the communication device; selecting a power saving mode from the plurality of power saving modes; and transmitting a second message comprising the power saving mode and at least one power saving parameter related to the power saving mode to a second network entity.

Abstract: A base station including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a mobile communication device operating in a connected mode extended Discontinuous Reception (eDRX). The controller determines whether a moving speed of the mobile communication device exceeds a threshold value, transmits measurement information and radio resource configurations of one or more neighboring cells to the mobile communication device via the wireless transceiver when the moving speed exceeds the threshold value, and activates radio resources of the neighboring cells for an upcoming eDRX-ON duration of the mobile communication device.

Abstract: A method for dynamically allocating resources is disclosed. The method is used in a base station and includes: dividing a coverage zone into a plurality of geographic zones, wherein each geographic zone corresponds to a resource pool; finding a first geographic zone based on geographic location information, wherein a resource utilization rate of resource blocks in a first resource pool corresponding to the first geographic zone is highest; determining whether resource pools corresponding to a plurality of adjacent geographic zones of the first geographic zone are reused; and allocating the resource blocks in the resource pools corresponding to the adjacent geographic zones to the first resource pool.

Abstract: A method for dynamically allocating resources is disclosed. The method is used in a base station and includes: dividing a coverage zone into a plurality of geographic zones, wherein each geographic zone corresponds to a resource pool; finding a first geographic zone based on geographic location information, wherein a resource utilization rate of resource blocks in a first resource pool corresponding to the first geographic zone is highest; determining whether resource pools corresponding to a plurality of adjacent geographic zones of the first geographic zone are reused; and allocating the resource blocks in the resource pools corresponding to the adjacent geographic zones to the first resource pool.

Abstract: A mobile communication device located within a radio signal coverage of a service network to serve as a relay User Equipment (UE) for Proximity-based Service (ProSe) UE-to-network relay is provided. The mobile communication device includes a wireless transceiver and a controller. The wireless transceiver performs wireless transmission and reception to and from the service network and a remote UE which is located out of the radio signal coverage of the service network. The controller transmits a Device-to-Device (D2D) Synchronization Signal (D2DSS) to the remote UE via the wireless transceiver in response to receiving a relay discovery message from the remote UE via the wireless transceiver, and requests radio resource allocation from the service network for the remote UE via the wireless transceiver in response to receiving a Direct Communication Request message from the remote UE via the wireless transceiver.

Abstract: A base station including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a mobile communication device operating in a connected mode extended Discontinuous Reception (eDRX). The controller determines whether a moving speed of the mobile communication device exceeds a threshold value, transmits measurement information and radio resource configurations of one or more neighboring cells to the mobile communication device via the wireless transceiver when the moving speed exceeds the threshold value, and activates radio resources of the neighboring cells for an upcoming eDRX-ON duration of the mobile communication device.

Abstract: A communication device for handling a cell reselection 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 performing a measurement on at least one cell one time in an extended discontinuous reception (eDRX) cycle to obtain a measurement result; stopping performing at least one layer filtering mechanism on the measurement result; and transmitting the measurement result to a network.

Abstract: A cell reselection method adapted to a communication device of a communication system includes receiving a first priority information and a Device to Device communication information broadcasted by a network node of the communication system; and rearranging the first priority information into a second priority information according to the D2D communication information when the communication device is in an operation scenario.

Abstract: A method for grouping user equipments (UEs) in proximity services restricted discovery, used in a communications system, including: broadcasting, by a first user equipment (UE), a UE discovered signal for being discovered, wherein the UE discovered signal includes a first group code corresponding to the first UE; receiving, by a second UE, the UE discovered signal and comparing the first group code with a second group code corresponding to the second UE; and transmitting, by the second UE, a comparing report to a network when the first group code and the second group code are the same.

Abstract: In a wireless communication system, a user equipment is configured to establish an RRC link with a cell when operating in a first mobility state or a second mobility state of an RRC connected mode. When all currently running application programs only cause background traffic or do not require short data latency, the user equipment is configured to maintain in or switch to the first mobility state having a lower monitoring frequency. When any of the currently running applications involves user interaction or requires short data latency, the user equipment is configured to maintain in or switch to the second mobility state having a higher monitoring frequency.

Abstract: A cellular station coupled to a Mobility Management Entity (MME) is provided. The cellular station includes a wireless transceiver and a controller. The wireless transceiver performs wireless transmission and reception to and from a plurality of wireless communication devices. The controller receives a warning message delivery request for an Earthquake and Tsunami Warning System (ETWS) from the MME, starts broadcasting a public warning message to the wireless communication devices via the wireless transceiver and sends a warning message delivery response to the MME in response to the warning message delivery request, and sends a warning status report comprising status information of one or more of the wireless communication devices to the MME.

Abstract: A mobile communication device located within a radio signal coverage of a service network to serve as a relay User Equipment (UE) for Proximity-based Service (ProSe) UE-to-network relay is provided. The mobile communication device includes a wireless transceiver and a controller. The wireless transceiver performs wireless transmission and reception to and from the service network and a remote UE which is located out of the radio signal coverage of the service network. The controller transmits a Device-to-Device (D2D) Synchronization Signal (D2DSS) to the remote UE via the wireless transceiver in response to receiving a relay discovery message from the remote UE via the wireless transceiver, and requests radio resource allocation from the service network for the remote UE via the wireless transceiver in response to receiving a Direct Communication Request message from the remote UE via the wireless transceiver.

Abstract: A communication device for handling a cell reselection 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 performing a measurement on at least one cell one time in an extended discontinuous reception (eDRX) cycle to obtain a measurement result; stopping performing at least one layer filtering mechanism on the measurement result; and transmitting the measurement result to a network.

Abstract: A communication device of handling power saving 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 transmitting a first message comprising capability information to a first network entity, wherein the capability information indicates a plurality of power saving modes of the communication device; selecting a power saving mode from the plurality of power saving modes; and transmitting a second message comprising the power saving mode and at least one power saving parameter related to the power saving mode to a second network entity.

Abstract: A method for grouping user equipments (UEs) in proximity services restricted discovery, used in a communications system, including: broadcasting, by a first user equipment (UE), a UE discovered signal for being discovered, wherein the UE discovered signal includes a first group code corresponding to the first UE; receiving, by a second UE, the UE discovered signal and comparing the first group code with a second group code corresponding to the second UE; and transmitting, by the second UE, a comparing report to a network when the first group code and the second group code are the same.

Abstract: In a wireless communication system, a first UE may conduct a D2D communication with a second UE using a frequency selected according to the band capacity of the first and second UEs and the result of the band searches performed by the first and second UEs. The first UE may also conduct the D2D communication with the second UE using a frequency assigned by a network or using a public frequency. Therefore, network traffic can be offloaded to the D2D communication with an increased D2D communication bandwidth.

Abstract: A cell reselection method adapted to a communication device of a communication system includes receiving a first priority information and a Device to Device communication information broadcasted by a network node of the communication system; and rearranging the first priority information into a second priority information according to the D2D communication information when the communication device is in an operation scenario.

Abstract: In a wireless communication system, a user equipment is configured to establish an RRC link with a cell when operating in a first mobility state or a second mobility state of an RRC connected mode. When all currently running application programs only cause background traffic or do not require short data latency, the user equipment is configured to maintain in or switch to the first mobility state having a lower monitoring frequency. When any of the currently running applications involves user interaction or requires short data latency, the user equipment is configured to maintain in or switch to the second mobility state having a higher monitoring frequency.

Abstract: If a new link is established between a user equipment and a serving base station after a previous link failure, the user equipment is configured to report information associated with the previous link failure, including UE mobility information during the previous link, information related to transmitting/receiving the RRC connection reconfiguration, or information related to radio link failure. The serving base station is configured to perform mobility optimization in the minimization of drive test accordingly for improving handover success rate and overall network efficiency.

Abstract: If a new link is established between a user equipment and a serving base station after a previous link failure, the user equipment is configured to report information associated with the previous link failure, including UE mobility information during the previous link, information related to transmitting/receiving the RRC connection reconfiguration, or information related to radio link failure. The serving base station is configured to perform mobility optimization in the minimization of drive test accordingly for improving handover success rate and overall network efficiency.