Method for avoiding uplink interference caused by d2d transmission, base station and user equipment
A technology for user equipment and execution equipment, applied in power management, wireless communication, electrical components and other directions, can solve problems such as uplink interference, transmission quality degradation, interference, etc., and achieve the effect of solving interference
Active Publication Date: 2017-12-29
HUAWEI TECH CO LTD
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Problems solved by technology
What cannot be tolerated is that the uplink transmission of a normal cellular system will be interfered by D2D transmission, resulting in a decrease in transmission quality, especially when the equipment performing D2D transmission is close to the base station, for example, it may cause huge uplink interference
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0036] The technical scheme of the present invention can be applied to various communication systems, such as: Global System for Mobile Communications (GSM, Global System of Mobile communication), Code Division Multiple Access (CDMA, Code Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA , Wideband Code Division Multiple Access Wireless), General Packet Radio Service (GPRS, General Packet Radio Service), Long Term Evolution (LT...
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Embodiments of the present invention provide a method, base station and user equipment for avoiding uplink interference caused by D2D transmission. The method includes: the base station sends uplink pilot resource configuration information to the first user equipment; the base station receives the uplink pilot signal configured and sent by the first user equipment according to the uplink pilot resource configuration information; determining the power control information, wherein the reception strength of the uplink pilot signal indicates the interference caused by the first user equipment and the second user equipment to perform device-to-device D2D transmission on the uplink transmission between the third user equipment and the base station; The user equipment sends power control information. The embodiment of the present invention enables the base station to determine power control information according to the receiving strength of the uplink pilot signal to control the transmission power of the first user equipment to perform D2D transmission, thereby solving the interference of the D2D transmission on the uplink signal of the common user equipment.
Description
technical field [0001] The present invention relates to the field of wireless communication, and more specifically, to a method, base station and user equipment for avoiding uplink interference caused by D2D transmission. Background technique [0002] Device-to-Device (D2D) communication is a new technology that allows terminals to communicate directly by multiplexing cell resources under the control of the system. D2D generally reuses uplink resources of cells when transmitting signals. In D2D transmission, if user equipment D1 and user equipment D2 find that they are very close to each other, they can bypass the base station, such as an evolved base station (eNB or e-NodeB, evolutional Node B), directly establish a connection and send the corresponding data to each other. D2D can occupy the frequency band resources used by normal cellular communication to save the equipment cost of user equipment (UE, UserEquipment), and only needs to add a receiving function in the upli...
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IPC IPC(8): H04W52/14H04W52/18
CPCH04W52/143H04W52/383H04W52/386
Inventor 李强余政
Owner HUAWEI TECH CO LTD