Time slot distribution method of wireless digital repeater

Abstract

The invention discloses a time slot distribution method of a wireless digital repeater in a communication system of a time division duplex. The time slot emitting a cell broadcast is set. Ports that the wireless digital repeater faces a base station and a mobile terminal respectively are set to emit signals at the same time in the part to which an uplink service channel of the base station corresponds or in the whole time slot. Ports that the wireless digital repeater faces the base station and the mobile terminal respectively are set to receive signals at the same time in the part to which a downlink service channel of the base station corresponds or in the whole time slot. The frame structure of the invention ensures that the access signal between the mobile terminal and the wireless digital repeater can not be disturbed by the signal emitted from the adjacent base station.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a time slot allocation method of a wireless digital repeater of a time division duplex communication system and an access method of a mobile terminal. Background technique [0002] The technical report TR 25.924V1.0.0 (1999-12) "Opportunity Driven Multiple Access" of the 3rd Generation Partnership Project (3GPP: 3rd Generation Partnership Project) is the earliest standardization organization about Discussion on the application of digital wireless relay devices to mobile communication systems, and the WINNER (Wireless World Initiative New Radio) project research report "IST-2003-507581WINNER D3" established by the Information Society Technologies (IST: Information Society Technologies) research organization .4, "Definition and assessment of relay-based cellular deployment concepts for future radio scenarios considering 1st protocol characteristics" for various existing wirele...

AI Technical Summary

Problems solved by technology

[0005] A shortcoming of existing fixed TDD (time division duplex) wireless digital repeater and its application mode (frame structure) is: 1) this shows that the transmission of the repeater to the base station and the transmission of the repeater to the terminal are different It does not support concurrent (simultaneous reception and (or) simultaneous transmission) work of the donor antenna and the retransmission antenna, which leads to the potential of spatial multiplexing transmission between the two hops not being explored, and the spectrum utilization rate is low. In addition, the directivity of the donor antenna and the retransmission antenna of the fixed repeater has not been effectively utilized, and the synchronous transmission of several base stations to the local cell will cause great interference to the terminals in the adjacent cell; 2) Compete for time slot C Immediately after the downlink time slot, it will be interfered by the multipath of the downlink signal, which will lead to the failure of access

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