Fujitsu Connected Technologies Limited

Fujitsu Corporation

Tao Qiu

Haibo Xu

Lianhai Wu

Hua Zhou

Weiwei Wang

Yanling Lu

Ningjuan Chang

Embodiments of the present disclosure provide a method and apparatus for transmitting a D2D discovery signal and a communication system. The method for transmitting includes: a UE selects a part of resources from a resource pool for transmitting a D2D discovery signal; the part of resources are selected in a manner of limiting number of times of transmission, or in a manner of limiting time interval, or in a manner of calculating a resource position; and transmits the D2D discovery signal by using the selected part of resources. With the embodiments of the present disclosure, malignant competitions may be avoided, resource utilization may be improved, and probabilities of undiscovery between UEs may be lowered; or detection may performed accurately, and complexity of a UE may be lowered.

Method and apparatus for transmitting D2D discovery signal and communication system

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

The embodiments of the present disclosure provide a method, an apparatus and a system for acquiring system information. The method for acquiring includes setting at least two indicators for indicating a system information update, the at least two indicators being corresponding to at least two User Equipments (UEs); and sending the indicators to the UEs, so that the UEs acquire system information according to their respective modification periods. Through the embodiments of the present disclosure, for example the MTC UE can acquire the latest system information in time, while ensuring that any extra and unnecessary acquisition of system information is not performed to reduce the power consumption of the MTC UE.

Method, apparatus and system for acquiring system information

Growing community of inventors

Beijing, China

Tao Qiu