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A communication method and device

A communication device and a technology for notifying information, which are applied in the field of communication and can solve problems such as inability to meet system design target values.

Active Publication Date: 2018-07-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a communication method and device, which can solve the problem that the fixed frame structure in the communication system cannot meet the system design target value

Method used

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Experimental program
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Embodiment 1

[0088] This embodiment provides a communication method, such as Figure 1A As shown, the specific process is as follows:

[0089] This embodiment provides a frame structure, such as Figure 1B shown. In the system, the frame structure generally includes the following content: the time length of a subframe can be expressed as T, the minimum frame can include L subframes, where L is a positive integer, and the frame can include M minimum frames, where M is a positive integer.

[0090] Optionally, the frame may further include at least one guard interval, and the total time length of the guard interval may be expressed as GP, so the time length of the frame is M×L×T+GP.

[0091] In the system, since each frame includes M minimum frames, the frame length can be dynamically adjusted by flexibly setting the value of M to realize a variable frame structure and reconfigure the frame length.

[0092] 101: The first transmission point determines the minimum number M of frames accordin...

Embodiment 2

[0131] In a communication system, the frame structure can be dynamically adjusted according to system requirements. Embodiments of the present invention provide a communication method for optimizing system delay and realizing the system's requirement for system delay.

[0132] Most mobile communication systems of different standards adopt the method of frame transmission, such as Global System for Mobile Communications (GSM), Wideband Code-Division Multiple Access (WCDMA), Time Division Duplex Synchronous Code Division Multiple Access Time-Division Synchronous Code-Division Multiple Access (TD-SCDMA), Worldwide Interoperability for Microwave Access (WiMax), Long Term Evolution (LTE), etc.

[0133] In the scenario of this embodiment, BS1 is used as the first transmission point, BS2 is used as the second transmission point, and frame transmission is performed between BS1 and BS2.

[0134] The basic parameters of the frame structure adopted by the communication system in this emb...

Embodiment 3

[0155] In a communication system, the frame structure can be dynamically adjusted according to system requirements. Embodiments of the present invention provide a communication method for optimizing system overhead and realizing system requirements for system overhead.

[0156]In a wireless local area network (Wireless Local Area Networks, WLAN) scenario, a wireless fidelity (Wireless Fidelity, Wi-Fi) system communicates between an access point (Access Point, AP) and a terminal (Station).

[0157] In the scenario of this embodiment, an AP serves as a first transmission point, an STA serves as a second transmission point, and frame transmission is performed between the AP and the STA.

[0158] The basic parameters of the frame structure adopted by the communication system in this embodiment are set as follows:

[0159] The time length of the subframe of the system is set as T=0.5 milliseconds, and the time length of the minimum frame is set as L=2 subframes, that is, the time l...

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Abstract

The invention discloses a communication method and device, and relates to the technical field of communication. According to the communication method and device, a first transmission point obtains a system design target value, the number of the smallest frame is determined according to the system design target value, a frame structure is then determined, and communication is conducted through a determined frame. A method that the frame structure is adjusted dynamically is adopted, achievement of the system design target value can be guaranteed, the flexibility ratio of a system is increased, and the system design target is achieved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a communication method and device. Background technique [0002] For a certain transmit power, the higher the data rate transmitted, the lower the coverage will be. If the maximum allowable transmission power is exceeded, the transmitter must reduce the communication rate to increase the coverage distance. The transmission power is generally limited by standard specifications and user equipment batteries, so users adjacent to base stations in cellular systems need to use adaptive technology to provide higher data rates, but the data rate will drop sharply as the distance from the base station increases. The multi-hop network is different, it can provide a long end-to-end communication distance by hopping through a series of intermediate nodes, and at the same time provide a sufficiently high communication rate. Compared with the distance between the sending end an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26
CPCH04B7/2656
Inventor 张帆阳建军
Owner HUAWEI TECH CO LTD
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