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Group downlink control information sending method and device

A technology of control information and transmission method, applied in the field of communication, can solve the problems of PUSCH data information packet loss, ignoring base station and missing PUSCH detection, etc.

Active Publication Date: 2020-07-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present disclosure provide a method and device for sending group downlink control information, to at least solve the problem in the related art that the base station does not send ACK after correctly demodulating the PUSCH data information, causing the terminal to not know whether the base station misses detecting the PUSCH, which in turn causes PUSCH The problem that data information may be lost

Method used

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  • Group downlink control information sending method and device
  • Group downlink control information sending method and device
  • Group downlink control information sending method and device

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Embodiment 1

[0066] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a mobile terminal as an example, figure 1 It is a hardware structural block diagram of a mobile terminal according to a method for sending group downlink control information in an embodiment of the present disclosure. like figure 1 As shown, the mobile terminal 10 may include one or more ( figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Optionally, the above-mentioned mobile terminal also A transmission device 106 for communication functions as well as input and output devices 108 may be included. Those of ordinary skill in the art can understand that, figure 1 The shown structure is only for illustration, and...

Embodiment 2

[0165] An embodiment of the present disclosure provides a method for sending an indication signal. Figure 4 is a flowchart of a method for sending an indication signal in an embodiment of the present disclosure, such as Figure 4 As shown, the method includes:

[0166] Step S401, sending an indication signal to the user side to indicate feedback information, wherein the indication signal is used to indicate the feedback information of the hybrid automatic repeat request HARQ process of the user to be fed back, and the indication signal occupies K resource units, and the resource unit is a resource block RB Or the resource element group REG or the resource element group binding REG bundle, K is a positive integer greater than 0.

[0167] Through the above method, an indication signal is sent to the user side to indicate the feedback information, wherein the indication signal is used to indicate the feedback information of the hybrid automatic repeat request HARQ process of th...

Embodiment 3

[0211] An embodiment of the present disclosure provides a method for sending a predetermined sequence. Image 6 is a flowchart of a predetermined sequence of sending methods in an embodiment of the present disclosure, such as Image 6 As shown, the method includes:

[0212] Step S601 , while sending the scheduling-free grant free physical uplink shared channel PUSCH, send a predetermined sequence, wherein there is a one-to-one correspondence or a one-to-many correspondence between the resources of the predetermined sequence and the grant free PUSCH.

[0213] Through the above method, while sending the scheduling-free grant free physical uplink shared channel PUSCH, a predetermined sequence is sent at the same time, wherein there is a one-to-one correspondence or a one-to-many correspondence between the resources of the predetermined sequence and the grant free PUSCH. Solve the problem in the prior art that the base station does not send ACK after correctly demodulating the PU...

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Abstract

The embodiment of the invention provides a group downlink control information sending method and device. The method comprises the following steps of sending group downlink control information group DCI to a user side, wherein a group DCI comprises N bit blocks, and the indication information carried in each bit block comprises at least one of the following: an identifier UE-ID of a user to be fedback, an identifier HARQ-ID of a hybrid automatic repeat request process of the user to be fed back, and bitmap mapping of K HARQ processes of one user; wherein the indication information carried in the bit block of the group DCI is used for indicating the feedback information of the corresponding HARQ process. The problem that in the prior art, a base station does not send ACK after correctly demodulating the PUSCH data information, so that a terminal does not know whether the base station misses PUSCH or not, and then the PUSCH data information may be lost is solved.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, to a method and device for sending group downlink control information. Background technique [0002] The fifth generation mobile communication system (5G) will support a variety of business scenarios, such as enhanced mobile broadband (EnhanceMobile Broadband, referred to as eMBB), delay high reliable communication (Ultra-Reliable Low latency Communication, referred to as URLLC), massive machine type communication (massive Machine Type of Communication, referred to as mMTC) and so on. [0003] Among them, URLLC services such as industrial automation, Internet of Vehicles, remote control, smart grid, and virtual reality have high requirements for latency, and the end-to-end latency is generally less than 1ms or even 0.5ms. In order to meet the delay requirements, especially to reduce the delay of uplink data transmission, one way is to configure predefined res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L1/16H04L1/18H04L5/00
CPCH04L1/1607H04L1/1812H04L5/0055H04W72/23H04L1/1822H04L1/1864H04L1/1614
Inventor 韩祥辉郝鹏苟伟梁春丽石靖夏树强
Owner ZTE CORP
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