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Data retransmission request method, request device, station device and access point device

An access point device and data retransmission technology, applied in the field of communication networks, can solve the problems of multiple feedback bits, increasing the complexity and overhead of uplink feedback, etc.

Active Publication Date: 2021-12-21
MEIZU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The number of CBs in a transmission block may be uncertain, which requires the number of bits used for retransmission feedback to dynamically match the number of CBs. When the number of CBs is large, more feedback bits are required, which increases the complexity of uplink feedback. degree and cost

Method used

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  • Data retransmission request method, request device, station device and access point device
  • Data retransmission request method, request device, station device and access point device
  • Data retransmission request method, request device, station device and access point device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] Such as Figure 8 As shown, the code blocks of eMBB data include a first code block set (interference set) and a second code block set (non-interference set), wherein the first code block set includes {CB3, CB4, CB5}, and the second code block set The set includes {CB0, CB1, CB2, CB6}. By performing error correction and error detection on the first code block set and the second code block set respectively, the first code block set corresponds to generate one-bit first decision information (ACK or NACK), the second code block set corresponds to generate one bit of second decision information, (ACK or NACK), by matching different feedback results, four sets of code block number sets that need to be retransmitted as shown in Table 1 are obtained result.

[0122] Table 1

[0123]

Embodiment 2

[0125] Such as Figure 9 As shown, the code blocks of eMBB data include the first code block set (interference set) and the second code block set (non-interference set), because the code blocks of eMBB data are all interfered by URLLC (CB6 is URLLC data block in time-frequency The data below is also the interference set), that is, the non-interference set is an empty set, and the feedback result of the non-interference set is an empty set, that is, no feedback, as shown in Table 2. At this time, only one bit of the interference set is fed back Judgment information and code block codes that need to be retransmitted are shown in Table 2.

[0126] Table 2

[0127]

[0128] The steps in the method of the present invention can be adjusted, combined and deleted according to actual needs.

[0129] Units in the device of the present invention can be combined, divided and deleted according to actual needs.

[0130] Those of ordinary skill in the art can understand that all or part ...

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Abstract

The present invention provides a data retransmission request method, a request device, a station device, and an access point device, wherein the data retransmission request method includes: receiving and demodulating a signal sent by the access point device for carrying occupation indication information order to obtain the occupation indication information; obtain the location information of the URLLC data in the code block carrying the eMBB data packet according to the occupation indication information; according to the location information of the URLLC data, perform group division on the code block carrying the eMBB data; Perform a demodulation operation on the set of code blocks to generate retransmission decision information corresponding to the set of code blocks, and feed back the retransmission decision information to the access point device. Through the technical scheme of the invention, time-frequency resources for new data transmission can be increased, and the data transmission rate can be improved.

Description

technical field [0001] The present invention relates to the technical field of communication networks, in particular, to a data retransmission request method, a data retransmission request device, a station device and an access point device. Background technique [0002] According to future application requirements, the 5G system needs to support a variety of business scenarios. Among them, Ultra-reliable and Low Latency Communications (URLLC) scenarios such as unmanned driving and industrial automation have attracted extensive attention. Usually, URLLC data is extremely bursty and has high requirements on delay, so this type of data has a very high resource scheduling priority. The current solution proposed for the transmission of URLLC data is: when URLLC data arrives, the 5G base station (gNB) immediately schedules it, that is, in the Enhanced Mobile Broadband (eMBB) data block that has completed resource configuration Hole-punching transmission is performed to achieve t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18
CPCH04L1/1812H04L1/1854H04L1/1887H04L1/1896
Inventor 赵思聪
Owner MEIZU TECH CO LTD