An uplink signal detection method and related equipment and system

Abstract

An uplink signal detection method includes: a micro base station detects whether the uplink signal is received in an uplink receiving window of a macro base station according to configuration information of an uplink signal sent by a UE; wherein the macro base station is synchronized with the micro base station clock frequency, and There is a fixed time difference t1 between the uplink receiving window of the macro base station and the uplink receiving window of the micro base station, and ︱t1︱≥0; if it is detected that the uplink signal is not received within the uplink receiving window of the macro base station, the The micro base station advances the uplink receiving window of the macro base station by at least one cyclic prefix length and then detects the uplink signal again and sends it to the macro base station. The embodiments of the present invention can effectively detect uplink signals of UEs including UEs served by a macro base station located outside the downlink coverage of the micro base station and at the edge of the downlink coverage of the micro base station.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to an uplink signal detection method and related equipment and system. Background technique [0002] As the number of User Equipment (UE) continues to increase, micro base stations are increasingly deployed in operator networks, so as to offload data traffic of macro base stations and reduce the processing pressure of macro base stations. This kind of network in which macro base stations and micro base stations are mixed is also called a heterogeneous network (Heterogeneous Network, HetNet). [0003] see figure 1 , figure 1 It is a schematic diagram of an existing heterogeneous network. exist figure 1 In the heterogeneous network shown, when the UE served by the macro base station is outside the downlink coverage of the micro base station and is located at the edge of the downlink coverage area of ​​the micro base station, the uplink signal from the UE served by t...

AI Technical Summary

Problems solved by technology

[0005] In a heterogeneous network, when the UE served by the macro base station is outside the downlink coverage of the micro base station, but at the edge of the downlink coverage of the micro base station, the UE served by the macro base station will use the TA allocated by the macro base station to send uplink signals , since the UE is far away from the macro base station, the TA allocated to the UE by the macro base station is generally larger; while the UE is relatively close to the micro base station, the uplink signal sent by the UE is likely to be at the start of the receiving window of the micro base station Arrived at the micro base station before, so that the micro base station cannot detect the uplink signal sent by the UE

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