Terminal straight-through communication method and device

Abstract

The invention discloses a terminal straight-through communication method. A search signaling sent by a sender terminal is received; the search signaling comprises a relay transmission identifier and a relay node identifier; the relay transmission identifier is used for indicating whether the search signaling is allowed to be forwarded by a relay; whether the relay transmission identifier in the search signaling indicates allowing the search signaling to be forwarded by the relay is judged; if the search signaling is allowed to be forwarded, whether the relay node identifier in the search signaling matches with the identifier parameter of the relay node allowing the search signaling to be forwarded is judged; the identifier parameter is contained in a search filter; if the relay node identifier matches with the identifier parameter, the search signaling is forwarded to a receiver terminal. The multi-hop search of a D2D (Device-to-Device) search function is realized through forwarding the search signaling by the relay; the capability of searching the receiver terminal by the sender terminal under various scenes is further enhanced; the user experience is promoted; and the personal security of the user is guaranteed. Correspondingly, the invention also discloses a terminal straight-through communication device.

Description

technical field [0001] The present invention relates to the technical field of communication, and more specifically, relates to a terminal direct connection communication method and device. Background technique [0002] D2D (Device-to-Device, terminal direct communication) is a short-distance communication service. Since the direct communication between devices can realize the direct transmission of data between terminals without forwarding through the base station, the D2D service can improve Transmission rate, shorten transmission time and reduce energy consumption. For some short-distance communication or public safety events, D2D services are more efficient. [0003] At present, in the R12 protocol of the LTE (LongTerm Evolution, long-term evolution) system, two major functions of D2D are given, namely, the search function and the communication function. Among them, the search function supports various application scenarios (for example, public security scenarios), A s...

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Problems solved by technology

[0005] In view of this, the present invention provides a terminal direct connection communication method and device to overcome the D2D search function in the prior art because it is limited to single-hop search, if the distance between the sender terminal and the receiver terminal is relatively long, or , the environment where the sender terminal and the receiver terminal are located is relatively complex, such as in a basement or a collapsed building, the sender terminal may not be able to search for the receiver terminal, which greatly affects the user experience and even endangers the user personal safety issues

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