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Communication method and device for time division duplex system

A technology of a time division duplex system and a communication method, applied in the field of communication, can solve the problems of long update period of system messages, inability to know the configuration of uplink and downlink subframes in real time, and inability of UE and base station to communicate normally, so as to ensure normal communication and improve The effect of performance and flexibility

Active Publication Date: 2012-09-19
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For UEs that can only determine the configuration of uplink and downlink subframes based on system information, such as UEs in LTE Release 8 / 9 / 10 (Release 8 / 9 / 10), system information is updated semi-statically, and the update period of system information is relatively short. Therefore, if the base station dynamically adjusts the uplink and downlink subframe configuration, these UEs cannot know the dynamically adjusted uplink and downlink subframe configuration of the base station in real time, and will continue to receive data according to the uplink and downlink subframe configuration determined by the system message and transmission, therefore, the dynamic adjustment of the uplink and downlink subframe configuration by the base station may lead to the failure of normal communication between the UE and the base station

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  • Communication method and device for time division duplex system
  • Communication method and device for time division duplex system
  • Communication method and device for time division duplex system

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0028] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments determined by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] In the embodiment of the present invention, the base station may be an evolved base station (evolved Node B, eNB), a Node B, an access point (Access Point), and the like. Each base station can provide communication coverage for a specific geographic area. The term "cell (Cell)" may be a coverage area of ​​a base station, and / or a coverage area served by a base station subsystem, depending on the context in which the term is use...

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Abstract

The embodiment of the invention provides a communication method and device for a time division duplex system for effectively guaranteeing normal communication of a base station and user equipment and relates to the technical field of communication. The communication method comprises the steps that: a first up / down link sub-frame configuration is regulated into a second up / down link sub-frame configuration; a sub-frame corresponding to the second up / down link sub-frame configuration is intersected with a sub-frame corresponding to the first up / down link sub-frame configuration; the intersection is a collection of sub-frames with the same sub-frame index and in the same sub-frame type; the intersection comprises at least one uplink sub-frame and at least one downlink sub-frame; and communication with the user equipment is carried out in at least one uplink sub-frame and at least one downlink sub-frame of the intersection based on a same timing relationship with the timing relationship corresponding to the first up / down link sub-frame configuration. The communication method and the communication device are suitable for wireless communication systems.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a communication method and device for a time division duplex (Time division duplex, TDD) system. Background technique [0002] In a wireless communication system, a base station transmits data and control information to user equipment UE (User Equipment) on the downlink, and receives data and control information from the user equipment on the uplink. Similarly, the user equipment transmits data and control information for the base station on the uplink, and receives data and control information from the base station on the downlink. Wherein, the communication between the base station and the UE may be performed in a TDD manner. For a TDD wireless communication system, downlink transmission and uplink transmission use the same carrier, but downlink transmission and uplink transmission are in different time slots (or subframes), that is, downlink transmission and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00H04W72/04H04L5/14
CPCH04B7/2656H04B1/56H04W28/18H04B7/2643
Inventor 余政
Owner HUAWEI TECH CO LTD
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