US Patent No. 9,516,669

METHOD AND DEVICE FOR DOWNLINK DATA TRANSMISSION


Patent No. 9,516,669
Issue Date December 06, 2016
Title Method And Device For Downlink Data Transmission
Inventorship Dong Chen, Beijing (CN)
Ying Zhang, Beijing (CN)
Assignee China Academy of Telecommunications Technology, Beijing (CN)

Claim of US Patent No. 9,516,669

1. A method for downlink data transmission, comprising:
sending downlink data transmission scheduling information to a user equipment;
obtaining a corresponding occasion of sending a first message, wherein the first message is used for instructing the user
equipment to receive downlink data;

sending the first message to the user equipment at the occasion; and
transmitting the downlink data to the user equipment according to the downlink data transmission scheduling information;
wherein transmitting the downlink data to the user equipment according to the downlink data transmission scheduling information
comprises:

transmitting the downlink data to the user equipment according to downlink data transmission time length, a position of a
starting subframe bearing downlink data transmission and downlink data transmission intervals indicated in the downlink data
transmission scheduling information; or

wherein transmitting the downlink data to the user equipment according to the downlink data transmission scheduling information
comprises:

scheduling the downlink data transmission to the user equipment through a control channel according to a physical resource
position indicated by the downlink data transmission scheduling information within monitoring time length of the control channel
indicated by the downlink data transmission scheduling information, and

transmitting the downlink data to the user equipment based on resources scheduled by the control channel; or
wherein transmitting the downlink data to the user equipment according to the downlink data transmission scheduling information
comprises:

determining a time point of starting to send the data in a following formula, and transmitting the downlink data to the user
equipment according to downlink data transmission time length, a position of a starting subframe bearing the downlink data
transmission and downlink data transmission intervals indicated in the downlink data transmission scheduling information at
the time point determined in the following formula:

SFN mod m=0

wherein m is the time length, and the time length is an integer multiple of a paging cycle.