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Method, system and evolved base station for tdd system dynamic frame structure allocation

A system dynamic and frame structure technology, applied in transmission systems, digital transmission systems, radio transmission systems, etc., can solve problems such as no solution, inability to dynamically allocate TDD system frame structure in time, and shorten the change cycle.

Active Publication Date: 2017-12-08
SANECHIPS TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the minimum change period of SIB information in the existing 3GPP standard is 640ms, which cannot dynamically allocate the TDD system frame structure in time
How to shorten the change period of the frame structure of the TDD system, under the condition of the UE compatible with 3GPP R8~R10, more dynamically notify the frame structure adopted by the UE of R11 and subsequent versions in the next configuration cycle, there is no corresponding solution at present

Method used

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Embodiment Construction

[0032] The basic idea of ​​the present invention is: eNB sends to UE an RRC instruction to enter the state of dynamic configuration frame structure, and sends frame structure configuration information on PDCCH; after receiving the RRC instruction, UE detects the configuration information of frame structure in PDCCH, and according to the detection Configure the frame structure used in the next configuration cycle based on the received configuration information.

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] The present invention realizes a method for dynamic frame structure allocation of a TDD system, such as figure 1 As shown, the method includes the following steps:

[0035] Step 101: the eNB sends an RRC instruction to the UE to enter the dynamic configuration frame structure state;

[0036] In this step, the RRC instruction is SIB information broadcast signaling or UE-...

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Abstract

The present invention discloses a method for allocating a dynamic frame structure in a time division duplex system (TDD). An evolved base station (eNB) sends a radio resource control protocol (RRC) instruction to enter a dynamic configuration frame structure state to a user equipment (UE), and in the The physical downlink control channel (PDCCH) sends the configuration information of the frame structure; after receiving the instruction, the UE detects the configuration information of the frame structure in the PDCCH, and configures the frame structure used in the next configuration cycle according to the detected configuration information; the present invention simultaneously Also disclosed is a system and eNB for dynamic frame structure allocation of a TDD system. Through the solution of the invention, the change period of the frame structure of the TDD system can be shortened, and the transmission of asymmetric services can be better supported.

Description

technical field [0001] The present invention relates to 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) technology, and in particular to a method, system and evolved base station (eNB) for dynamic frame structure allocation of a Time Division Duplex (TDD, Time Division Duplexing) system. Background technique [0002] In the Long Term Evolution (LTE, Long Term Evolution) and Long Term Evolution-Advanced (LTE-A) standards, a TDD system frame is composed of ten subframes. 3GPP supports a total of 7 frame structures, as shown in Table 1, where D represents a downlink channel subframe, S represents a shared channel subframe, and U represents an uplink channel subframe. [0003] [0004] Table 1 [0005] In the current 3GPP standard, the user equipment (UE, User Equipment) is notified of the frame structure configured in the current serving cell through the system information SIB-I. In the pre-research project of "Dynamic TDD Frame Structure" off...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04L1/00
CPCH04W72/0446H04B7/2656H04L5/0037H04L5/14H04W72/23H04W48/00
Inventor 张晓博
Owner SANECHIPS TECH CO LTD
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