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Signal transmitting and receiving method based on frame structure, and access network device

A frame structure, signal technology, applied in the field of communication

Active Publication Date: 2018-10-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a method for transmitting and receiving signals based on a frame structure and access network equipment, which can solve the problem of how to ensure that the uplink and downlink transmissions of the same frequency cells do not interfere with each other in the prior art without reducing the spectrum utilization rate. question

Method used

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  • Signal transmitting and receiving method based on frame structure, and access network device
  • Signal transmitting and receiving method based on frame structure, and access network device
  • Signal transmitting and receiving method based on frame structure, and access network device

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Embodiment Construction

[0082] The terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or modules is not necessarily limited to the expressly listed Those steps or modules, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products or equipment, and the division of modules presented herein is only a logical division, In actual appl...

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Abstract

The invention provides a signal transmitting and receiving method based on a frame structure, and a device. The method is applied to a first antenna device and a second antenna device, and a first cell covered by the first antenna device and a second cell covered by the second antenna device have the same frequency; the frame structure comprises a first frame structure, the first frame structure comprises at least two first downlink time units, and the method comprises the following steps: the first antenna device receives a first sounding signal sent by the second antenna device in the two first downlink time units, then obtains a first channel matrix according to the first sounding signal, then performs zero-forcing preprocessing on a signal that is about to be sent to a terminal devicein the first cell according to a zero point direction of the first cell relative to the second cell indicated by the first channel matrix, and sends the signal subjected to the zero-forcing preprocessing to the terminal device in the first cell. By adoption of the scheme provided by the invention, the problem of mutual interference during the simultaneous uplink and downlink transmission between the same frequency cells can be solved.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a method for sending and receiving signals based on a frame structure and an access network device. Background technique [0002] Under the Time Division Duplex (English full name: Time Divide Duplex, English abbreviation: TDD) standard of wireless cellular communication system based on Orthogonal Frequency Division Multiplexing (English full name: Orthgonal Frequency Divide Multipleaccess, English abbreviation: OFDM), each cell ( cell) can dynamically configure the subframe ratio of downlink subframes and uplink subframes according to the traffic volume of their respective cells. but in such figure 1 In the dynamic TDD networking scenario shown, for two adjacent cells (including cell1 and cell2) with continuous coverage and the same frequency, there will be an uplink / downlink co-frequency between the downlink data transmission part and the uplink data transm...

Claims

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Application Information

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IPC IPC(8): H04J11/00H04L27/26
CPCH04J11/005H04L27/2602H04J11/00H04L27/26
Inventor 徐斌
Owner HUAWEI TECH CO LTD