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Direction connection hybrid automatic repeat request (HARQ) feedback indication method and device

A technology of hybrid automatic retransmission and indication device, applied in the field of communication

Pending Publication Date: 2020-03-31
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, for the Mode1 resource allocation method of direct connection communication, whether to enable the HARQ feedback mechanism, and when the HARQ mechanism is enabled, which HARQ feedback method should be used for direct connection multicast communication has not been defined.

Method used

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  • Direction connection hybrid automatic repeat request (HARQ) feedback indication method and device
  • Direction connection hybrid automatic repeat request (HARQ) feedback indication method and device
  • Direction connection hybrid automatic repeat request (HARQ) feedback indication method and device

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Embodiment Construction

[0172] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0173] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the ...

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Abstract

The invention provides a direction connection hybrid automatic repeat request (HARQ) feedback indication method and device. The method comprises following steps: assigning a target resource to user equipment to carry out direct communication; sending a downlink control signal to the user equipment, wherein the downlink control signal comprises the target resource and first indication information,and the first indication information is used to indicate at least one of followings: when the user equipment uses the target resource assigned by the base station to carry out direction connection unicast communication, whether to carry out direction connection HARQ feedback; when the user equipment uses the target resource assigned by the base station to carry out direction connection multicast communication, whether to carry out direction connection HARQ feedback; and when the user equipment uses the target resource assigned by the base station to carry out direction connection multicast communication, carrying out the feedback mode of direction connection HARQ feedback. Based on the target resource assigned to the user equipment by the base station, when the user equipment uses the target resource to carry out direction connection unicast and / or multicast communication, the method can judge whether to carry out direction connection HARQ feedback, and during the process of direct connection multicast communication, the feedback mode of direction connection HARQ feedback is performed.

Description

technical field [0001] The present disclosure relates to the field of communications, and in particular to a method and device for direct connection hybrid automatic repeat request (HARQ) feedback indication. Background technique [0002] NR (New Radio, new air interface) V2x (Vehicle to everything, Internet of Vehicles) supports the resource allocation method of Mode (Mode) 1. The base station can allocate time domain and frequency domain resources to the user equipment at the sending end of direct connection communication through downlink signaling, and the user equipment at the sending end uses the allocated resources to send direct connection control information and direct connection data. According to different resource allocation methods in downlink signaling, the resource allocation methods of mode1 can include the following: [0003] In the first way, the base station sends resource information to the user equipment through semi-static downlink signaling, and config...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L5/00H04W76/14H04W76/27
CPCH04L5/0055H04L1/1812H04W76/14H04W76/27H04L1/1685H04L1/1864H04L1/1861H04W92/18H04L1/1614H04L1/1822
Inventor 赵群
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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