Method for resolving conflict of TDD (Time Division Duplex) uplink resource configuration information and HARQ (Hybrid Automatic Repeat Request) acknowledgment message

A technology for reconfiguring messages and configuration methods, which is applied in the direction of error prevention/detection by using the return channel, prevention/detection of errors through diversity reception, etc., and can solve problems such as waste of uplink bandwidth and inability to correctly schedule uplink subframes, etc. Achieve the effects of eliminating waste, saving time and resources, and ensuring performance

Active Publication Date: 2013-09-18
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] If there is no solution to deal with such uplink resource allocation conflicts, uplink subframes cannot be scheduled correctly, and uplink bandwidth will be wasted

Method used

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  • Method for resolving conflict of TDD (Time Division Duplex) uplink resource configuration information and HARQ (Hybrid Automatic Repeat Request) acknowledgment message
  • Method for resolving conflict of TDD (Time Division Duplex) uplink resource configuration information and HARQ (Hybrid Automatic Repeat Request) acknowledgment message
  • Method for resolving conflict of TDD (Time Division Duplex) uplink resource configuration information and HARQ (Hybrid Automatic Repeat Request) acknowledgment message

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Embodiment Construction

[0038] In the present invention, first define two types of uplink resource allocation conflicts:

[0039] Type I: The uplink resource allocation of the uplink subframe (Physical Uplink Shared CHanneel, PUSCH) of the radio frame changed by TDD reconfiguration is located in the uplink subframe of the previous frame before the change, such as figure 1 shown. The uplink subframes (that is, #8 and #9 uplink subframes) of the previous frame before the change are called conflicting subframes. Specifically, according to the uplink and downlink configuration mode 4 of the second radio frame, the uplink resource allocation of the #2 and #3 uplink subframes of the second radio frame is located in the #8 and #9 uplink subframes of the first radio frame , the #8 and #9 uplink subframes of the first radio frame are called conflicting subframes. Uplink subframes #2 and #3 of the second radio frame are called subframes to be scheduled.

[0040] Type II: The uplink resource allocation of th...

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Abstract

The invention provides a method for indicating a user terminal to resolve the conflict of uplink resource configuration generated in the dynamic uplink and downlink configuration process in a base station of a TDD (Time Division Duplex) system. The method comprises the following steps of judging whether a first uplink and downlink configuration mode is needed to be adopted in a first wireless frame or not and a second uplink and downlink configuration mode is needed to be adopted in a second wireless frame adjacent to the first wireless frame or not, wherein the uplink resource configuration corresponding to an uplink subframe to be scheduled in the second wireless frame is positioned on a conflict subframe of the first wireless frame, and the conflict subframe is an uplink subframe or a subframe which is unavailable for bearing uplink resource configuration information; when the first uplink and downlink configuration mode is needed, adopting a first remapping mode, wherein the remapping mode means that the uplink resource configuration corresponding to the uplink subframe to be scheduled is remapped to an effective downlink subframe in front of the uplink subframe to be scheduled, and the effective downlink subframe can be used for bearing the uplink resource configuration; sending a reconfiguration message to the user terminal for indicating the user terminal to adopt the second uplink and downlink configuration mode.

Description

technical field [0001] The present invention relates to a time division duplex multiplexing system, in particular to a method for conflicting current uplink and downlink resource configuration information and mixed automatic retransmission response messages in a TDD system in a base station and a user terminal. Background technique [0002] In the 3GPP LTE (Long Term Evolution, long-term evolution) TDD (Time Division Duplex, time division duplex multiplexing) system, by providing seven different, semi-statically configured uplink and downlink configuration modes, the TDD operation mode of LTE allows non- The symmetrical uplink-downlink allocation, as shown in Table 1, is defined in 3GPP TS 36.211. Among them, D represents the subframe reserved for downlink transmission, U represents the subframe reserved for uplink transmission, and S represents a special subframe, which has three domains, namely DwPTS, GP and UpPTS. Generally, the S is regarded as a downlink subframe. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/06H04L1/18
Inventor 孙芳蕾赵岩杨涛孙欢
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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