US Patent No. 9,706,588

METHOD, DEVICE AND SYSTEM FOR DEVICE TO DEVICE (D2D) RESOURCE ACQUISITION


Patent No. 9,706,588
Issue Date July 11, 2017
Title Method, Device And System For Device To Device (d2d) Resource Acquisition
Inventorship Bin Jiao, Beijing (CN)
Jiamin Liu, Beijing (CN)
Fangli Xu, Beijing (CN)
Assignee China Academy of Telecommunications Technology, Beijing (CN)

Claim of US Patent No. 9,706,588

1. A method for obtaining a Device to Device (D2D) communication resource, the method comprising:
receiving, by a User Equipment (UE), a system broadcast message; and
obtaining and storing, by the UE, D2D communication resource configuration information carried in the system broadcast message,
the D2D communication resource configuration information comprising channel configuration information and a list of identifiers
of Public Land Mobile Networks (PLMNs) sharing the D2D communication resource configuration information, so that the UE communicates
with another UE based on the stored D2D communication resource configuration information,

wherein in a case that the D2D communication resource configuration information is D2D communication public resource configuration
information, obtaining by the UE the D2D communication resource configuration information carried in the system broadcast
message comprises:

obtaining, by the UE, D2D communication public resource configuration information, carried in the system broadcast message,
comprising D2D communication public channel configuration information and the list of identifiers of PLMNs sharing the D2D
communication public resource configuration information, by reading the system broadcast message when the UE initially accesses
a network which is one of the PLMNs;

wherein a pre-condition for storing by the UE the D2D communication public resource configuration information carried in the
system broadcast message is that;

after the D2D communication public resource configuration information, carried in the system broadcast message received by
the UE during initially accessing the network which is one of the PLMNs, is obtained, it is determined that an identifier
of a PLMN with which the UE is currently registered belongs to the list of identifiers of PLMNs in the D2D communication public
resource configuration information.