Method, system and equipment for realizing return link control channel transmission of relay system

Abstract

The invention discloses a method, a system and equipment for realizing return chain control channel transmission of a relay system, belonging to the field of communication. The method comprises the following steps of: allocating a proprietary resource area for a relay served by a base station through the base station; calculating a control channel of the relay by the base station; configuring a control channel for the relay in the resource area which corresponds to the relay by the base station according to the resource area allocated by the relay and the acquired control channel of the relay; and detecting control information transmitted by the base station in the corresponding resource area allocated for the relay served by the base station by the relay. The invention solves the problem of the transmission of the return link control channel in an LTE-A (Long Term Evolution-Advanced) relay system so that the relay can receive control information transmitted by the base station in wider range and further the complexity of the blind detection of the relay can be reduced.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method, system and equipment for realizing the transmission of a relay system backhaul link control channel. Background technique [0002] In the LTE (Long Term Evolution, Long Term Evolution)-Advanced (referred to as LTE-A) system, by introducing a relay (Relay) between the base station and the cell, the coverage of the cell is extended and the throughput of the edge cell is improved. 1. Enhance the data transmission capability in hotspot areas, thereby enriching the user experience of the LTE system / LTE-Advanced system. In the LTE-A relay system, UE (User Equipment, terminal) has two service modes: UE can be directly served by the base station; UE can be served by the base station through the relay, wherein the UE to be directly served by the It is called Marco-UE, and the transmission link between the Marco-UE and the base station is called a direct transmission link; ...

AI Technical Summary

Problems solved by technology

However, this mode has the following defects: the relay cannot send and receive data from the base station and RN-UE at the same time, otherwise it will cause backhaul self-interference (self-backhaul interference)

[0005] In the process of realizing the present invention, the inventor found that the above-mentioned prior art has at least the following shortcomings and deficiencies: the base station needs to find an optimal common resource area suitable for all relays; and in the mobile communication system, due to different relays and base stations The change of the wireless channel between the radio channels is quite different, and the location of the best common resource area that is compromised among all relays and occupies limited time-frequency resources must not be able to optimize the reception of each relay's control signal, which may easily cause the base station cell The coverage area is small, and it cannot effectively support the relay at the cell edge of the base station or other poor channel conditions

And because all relays need to pass blind detection in the public area and judge whether there is control information sent to them, the amount of calculation increases and the calculation is complicated

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