Method for suppressing td-lte cross-slot interference and uplink base station
A cross-slot interference and cross-slot technology, applied in the field of communication, can solve problems such as cells not working normally, affecting communication quality, and interference
Active Publication Date: 2018-01-23
SHANGHAI HUAWEI TECH CO LTD
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Problems solved by technology
[0004] Studies have shown that the interference in the cross-slot is very serious, especially the interference between base stations seriously affects the communication quality. Although the cross-slot in the cell that undertakes the downlink task can generally work normally, the cell that undertakes the uplink Gap barely works
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[0053] Embodiments of the present invention provide a method for suppressing TD-LTE cross-slot interference and an uplink base station for reducing cross-slot interference.
[0054] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. 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.
[0055] The terms "comprising" and "having" and any variations thereof in the description and claims of the present invention and the above drawings are intende...
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The embodiment of the invention discloses a method and an uplink base station for suppressing TD-LTE cross-slot interference. The method in the embodiment of the present invention includes: the uplink base station acquires the uplink reference signal from the user equipment and the local uplink reference signal of the user equipment to estimate the uplink channel information of the uplink reference signal and the channel information of the uplink data signal; The downlink reference signal of the local area and the local downlink reference signal of the neighboring cell are used to estimate the downlink interference channel information of the cross-slot uplink reference signal and the downlink interference channel information of the uplink data signal; the uplink base station calculates the uplink interference of the adjacent cell according to the obtained data The noise statistical information also calculates the equalization coefficient according to the channel information of the uplink data signal, the downlink interference channel information received by the uplink data signal, and the uplink interference noise statistical information of adjacent cells; the uplink base station uses the equalization coefficient to process the uplink signal received by the uplink base station. The present invention can reduce cross time slot interference.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a method for suppressing TD-LTE cross-slot interference and an uplink base station. Background technique [0002] In the TD-LTE system, the uplink and downlink are assigned to the same frequency spectrum and occupy different time periods, so that the ratio of uplink and downlink resources can be allocated flexibly, and resources are allocated according to the ratio of uplink and downlink services. [0003] However, if the traffic volumes of two adjacent base stations are different, adopting different time slot ratio schemes will bring interference specific to the TD-LTE system, manifested as base station-to-base station interference and mobile station-to-mobile interference. This type of interference is called cross-slot interference. [0004] Studies have shown that the interference in the cross-slot is very serious, especially the interference between base stations seri...
Claims
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IPC IPC(8): H04L25/03H04L25/02
Inventor 陈卫华易雄书
Owner SHANGHAI HUAWEI TECH CO LTD