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Uplink feedback method and device

A communication device and a technology for configuring information, applied in the field of communication, can solve the problems of not considering the reliability of multimedia multicast broadcasting services, the inability to realize multicast services, and high reliability requirements

Pending Publication Date: 2022-03-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The user scenarios of multimedia broadcast multicast service applications in the new antenna system include vehicle to everything (V2X), industrial Internet of Things (Industrial Internet of Things, IIoT), etc. These user scenarios have high requirements for reliability. However, the current The multicast technology does not consider the reliability of the multimedia multicast broadcast service, and does not support the feedback for the multimedia broadcast multicast service. If the current multicast technology is still used in the new antenna system, such as 5G and other future communication systems, it will As a result, multicast services with high reliability requirements cannot be realized

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  • Uplink feedback method and device

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Embodiment 1

[0160] Embodiment 1 Uplink Feedback Method 100

[0161] see Figure 9 , Figure 9 It is a schematic flowchart of an uplink feedback method 100 provided in an embodiment of the present application. The uplink feedback method 100 can be applied to any communication system in the communication system 100 to the communication system 300 mentioned above. Such as Figure 9 As shown, the uplink feedback method 100 includes but not limited to the following steps:

[0162] S101. The network device determines first indication information, where the first indication information is used to indicate disabling the feedback function corresponding to the multimedia broadcast multicast service;

[0163] Optionally, the first indication information can also be expressed as: the first indication information is used to disable the feedback function corresponding to the MBMS service, or the first indication information is used to indicate to stop reporting the feedback function corresponding t...

Embodiment approach 111

[0182] Embodiment 1.1.1, the first instruction information includes a feedback instruction, and the feedback instruction is used to instruct to disable the feedback function corresponding to the MBMS service.

[0183] In this implementation manner, one feedback indication is used to indicate whether to enable the two feedback functions, which is beneficial to save signaling overhead.

[0184] For example, the first indication information is a field. If the terminal device determines that the above-mentioned configuration information of the network device, or the scheduling information of the multimedia broadcast multicast service, or the system information block, or the RRC signal sent by the network device If this field is included in the command, the terminal device will disable the feedback function corresponding to the MBMS service; if the terminal device determines that the above-mentioned network device configuration information, or the MBMS scheduling information , or i...

Embodiment approach 112

[0186] Embodiment 1.1.2, the first indication information includes multiple feedback indications, one feedback indication corresponds to one feedback function, and one feedback indication is used to instruct to disable a corresponding feedback function.

[0187] Wherein, the feedback function includes a HARQ feedback function corresponding to the multimedia broadcast multicast service, a CSI feedback function, a CQI feedback function, a PMI feedback function, or an RI feedback function. A feedback indication may be a field or a bit to indicate whether to disable the corresponding feedback function. This embodiment is beneficial for the network device to disable one or more of the feedback functions, and improves the flexibility of network device regulation.

[0188] For example, the first indication information includes three feedback indications, namely feedback indication A, feedback indication B, and feedback indication C, wherein the feedback indication A is used to instru...

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Abstract

The invention provides an uplink feedback method and device, in the method, a terminal device can receive first indication information from a network device, the first indication information is used for indicating to enable a feedback function corresponding to a multimedia broadcast multicast service, the network device is facilitated to transmit the multimedia broadcast multicast service in a more reliable transmission mode, and the user experience is improved. And the reliability of the multimedia broadcast multicast service and the regulation and control flexibility of the network equipment are improved. Or the first indication information is used for indicating to enable the feedback function corresponding to the second network equipment, so that the problem that the uplink feedback of the terminal equipment is limited when the second network equipment is the network equipment with a relatively large coverage area can be solved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to an uplink feedback method and device. Background technique [0002] The user scenarios of multimedia broadcast multicast service applications in the new antenna system include vehicle to everything (V2X), industrial Internet of Things (Industrial Internet of Things, IIoT), etc. These user scenarios have high requirements for reliability. However, the current The multicast technology does not consider the reliability of the multimedia multicast broadcast service, and does not support the feedback for the multimedia broadcast multicast service. If the current multicast technology is still used in the new antenna system, such as 5G and other future communication systems, it will As a result, multicast services with high reliability requirements cannot be realized. [0003] Therefore, in the future communication system, how to improve the reliability of the mult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/16H04L1/18H04L5/00H04L65/611
CPCH04L1/1607H04L1/1812H04L5/0055H04W4/06H04L1/1671H04L1/1685H04L1/1822H04L65/611H04L65/80H04L65/1069H04L1/1864H04L2001/0092H04L5/0053
Inventor 于海凤李秉肇陈磊
Owner HUAWEI TECH CO LTD