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Method and system for distributing dynamic frame structures of TDD (time division duplexing) system and evolution base station

A technology of system dynamics and distribution methods, applied in transmission systems, digital transmission systems, radio transmission systems, etc., can solve the problems of no solution and inability to dynamically allocate TDD system frame structure in time, and achieve the effect of shortening the change cycle

Active Publication Date: 2013-08-14
SANECHIPS TECH CO LTD
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  • Claims
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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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  • Method and system for distributing dynamic frame structures of TDD (time division duplexing) system and evolution base station
  • Method and system for distributing dynamic frame structures of TDD (time division duplexing) system and evolution base station
  • Method and system for distributing dynamic frame structures of TDD (time division duplexing) system and evolution base station

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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 invention discloses a method for distributing dynamic frame structures of a TDD system. The method comprises the following steps: an evolution base station (eNB) sends an RRC (Radio Resource Control) command of entering into a dynamic configuration frame structure state to UE (User Equipment), and sends the frame structure configuration information in PDCCH (Physical Downlink Control Channel); and after receiving the command, the UE detects the frame structure configuration information in PDCCH, and configures a frame structure adopted in the next configuration period according to the detected configuration information. Meanwhile, the invention further discloses a system distributing the dynamic frame structures of the TDD system as well as the eNB. Due to the adoption of the scheme, the variation period of the frame structures of the TDD system can be shortened, and the unsymmetrical transmission is supported better.

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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L1/00
CPCH04W24/00H04W72/0446H04W72/00H04W72/04H04B7/2656H04L5/0037H04L5/14H04W72/23H04W48/00
Inventor 张晓博
Owner SANECHIPS TECH CO LTD
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