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Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof

A semi-static scheduling and response information technology, applied in the field of response information feedback, can solve the problems of not knowing the location of semi-static transmission, retransmission, BS receiving incorrect response information, etc., to save resources and reduce data retransmission Effect

Active Publication Date: 2009-08-05
HUAWEI TECH CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

When the UE loses the SPS start signaling, the first position fed back by the UE is NAK, and the BS interprets the NAK as the correct reception of the control signaling but the data error, which causes the BS to receive incorrect response information, so the BS will not resend the PDCCH , while the UE still does not know the location of the semi-static transmission, causing unnecessary retransmissions

Method used

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  • Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof
  • Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof
  • Semi-static scheduling data packet response information feedback, receiving method and apparatus thereof

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, it is a schematic diagram of the feedback method of the response information of the semi-persistent scheduling data packet in the first embodiment of the present invention, which specifically includes the following steps;

[0025] Step 101, receiving the downlink data and uplink data allocation indication UL DAI sent by the base station, wherein the value of the UL DAI represents the number N of downlink data packets;

[0026] Step 102, placing the ACK / NAKs of k semi-persistently scheduled data packets in the downlink data at the N-k+1th to Nth ACK / NAK positions; where k is a positive integer greater than 0.

[0027] Step 103, feeding back N ACK / NAKs to the base station.

[0028]Wherein in step 102, th...

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Abstract

The embodiment of the invention relates to the field of wireless communication and discloses a method and a device that are used for response information feedback and receiving of semi-static scheduling data packets; wherein, the response information feedback method of the semi-static scheduling data packets comprises the following steps: distributed indicating UL DAI of downstream data and upstream data that is sent by a base station is received, and the UL DAI value represents the number N of downstream data packets; ACK / NAK of k semi-static scheduling data packets in the downstream data is placed in a position between the (N-k+1)th and the Nth ACK / NAK; N ACK / NAK are fed back to the base station. The response information feedback method of the semi-static scheduling data packets can guarantee correct arrangement of the fedback N ACK / NAK.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for feeding back response information of semi-persistent scheduling data packets, and a method and device for receiving response information of semi-persistent scheduling data packets. Background technique [0002] In the existing 3GPP E-UTRA system, two modes FDD (Frequency Division Duplexing, frequency division duplexing) and TDD (Time Division Duplexing, time division duplexing) are supported. For TDD mode, each radio frame is 10 milliseconds long and consists of 2 half-frames with a length of 5 milliseconds. Each half frame is composed of 8 time slots with a length of 0.5 milliseconds and 3 special domains DwPTS, GP, and UpPTS. Every two time slots form a subframe, and 3 special domains DwPTS (Downlink Pilots Timeslot, downlink pilot time Slot), GP (Guard Period, guard interval), UpPTS (Uplink Pilots Timeslot, uplink pilot time slot) form a special s...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04B7/26
CPCH04L1/1614H04L1/1854H04W72/0406H04L1/1861H04W28/04
Inventor 范霄安刘广李博侯云哲
Owner HUAWEI TECH CO LTD
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