US 11,445,488 B2Granted

Control information transmission method and device

AssigneeHuawei Technologies Co., Ltd.

InventorsBai Du, Jinlin Peng, Peng Zhang, Toufiqul Islam

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Abstract

This application provides a control information transmission method and a device, and relates to the wireless communications field, to improve data transmission efficiency. The method includes: determining, by a network device, first indication information, where the first indication information is used to indicate whether information transmission on a first time-frequency resource is affected; sending, by the network device, the first indication information through a physical downlink control channel; and receiving, by a terminal device, the first indication information, and determining, based on the first indication information, whether information transmission on a third time-frequency resource is affected, where the third time-frequency resource is a time-frequency resource that is used for downlink information transmission between the terminal device and the network device.

Claims20

Dependent claims

A method, comprising:

receiving, by a terminal device via radio resource control (RRC) signaling, an indication indicating a segmentation method in a plurality of segmentation methods for a first time-frequency resource, the segmentation method being a first segmentation method or a second segmentation method, the first segmentation method indicating that the first time-frequency resource comprises a pre-configured number of subsets of time-frequency resources grouped in a time domain, and the second segmentation method indicating that the first time-frequency resource comprises the pre-configured number of time-frequency resources grouped in both the time domain and a frequency domain, wherein the pre-configured number is m, and m is an integer greater than 1;
receiving, by the terminal device, first indication information through a physical downlink control channel, wherein the first indication information comprises second indication information with a length of m bits, and each bit of the second indication information corresponds to a subset of the pre-configured number of subsets of time-frequency resources and indicates whether no transmission to the terminal device is present in a corresponding subset;
and
determining, by the terminal device based on the segmentation method and the first indication information, a first subset from the pre-configured number of subsets of time-frequency resources, with no transmission to the terminal device present in the first subset.

1 more element

An apparatus comprising:

a processor;
and
a non-transitory computer readable medium storing a program to be executed by the processor, the program comprises instructions for:
receiving, via radio resource control (RRC) signaling, an indication indicating a segmentation method in a plurality of segmentation methods for a first time-frequency resource, the segmentation method being a first segmentation method or a second segmentation method, the first segmentation method indicating that the first time-frequency resource comprises a pre-configured number of subsets of time-frequency resources grouped in a time domain, and the second segmentation method indicating that the first time-frequency resource comprises the pre-configured number of subsets of time-frequency resources grouped in both the time domain and a frequency domain, wherein the pre-configured number is m, and m is an integer greater than 1;
receiving first indication information through a physical downlink control channel, wherein the first indication information comprises second indication information with a length of m bits, and each bit of the second indication information corresponds to one subset of the pre-configured number of subsets of time-frequency resources and indicates whether no transmission to the apparatus is present in a corresponding subset;
and
determining, based on the segmentation method and the first indication information, a first subset from the pre-configured number of subsets of time-frequency resources, with no transmission to the apparatus present in the first subset.

4 more elements

An apparatus comprising:

a processor;
and
a non-transitory computer readable medium storing a program to be executed by the processor, the program comprises instructions for:
determining a segmentation method for a first time-frequency resource in a plurality of segmentation methods, the segmentation method being a first segmentation method or a second segmentation method, the first segmentation method indicating that the first time-frequency resource comprises a pre-configured number of subsets of time-frequency resources grouped in a time domain, and the second segmentation method indicating that the first time-frequency resource comprises the pre-configured number of subsets of time-frequency resources grouped in both the time domain and a frequency domain, wherein the pre-configured number is m, and m is an integer greater than 1;
sending an indication indicating the segmentation method to a terminal device via radio resource control (RRC) signaling;
determining first indication information, wherein the first indication information comprises second indication information with a length of m bits, and each bit of the second indication information corresponds to a subset of the pre-configured number of subsets of time-frequency resources and indicates whether no transmission to the terminal device is present in a corresponding subset;
and
sending the first indication information to the terminal device through a physical downlink control channel.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/728,971Filed 27 Dec 2019 · continuation
Priority: CN 201710525762.730 Jun 2017
Published: US 2020/0137736 A130 Apr 2020
Granted: 13 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H04L 47/245
Traffic characterised by specific attributes, e.g. priority or QoS: using preemption
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04L 5/0005
Two-dimensional division: time-frequency
H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver

Family

PCT/CN2018/093422Parent of this continuation · filed 28 Jun 2018
US 2020/0137736 A1Pre-grant publication · published 30 Apr 2020
US 11,445,488 B2This patent

From the US filing history. Foreign family members aren’t listed.

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