US 11,057,895 B2Granted

Retuning method and apparatus for SRS coverage enhancement

AssigneeHuawei Technologies Co., Ltd.

InventorsYongqiang Fei, Zheng Yu, Xingqing Cheng

Life of this patent

Estimating the term…

Loading patent…

Abstract

The present disclosure relates to retuning methods and apparatus. One example method includes determining a first resource and a second resource, where the first resource is used to send a SRS, the first resource is determined based on a first frequency domain resource and at least one symbol of a first subframe, the second resource is used to send a PUSCH or a PUCCH, the second resource is determined based on a second frequency domain resource and a second subframe, all or a part of the first frequency domain resource is not in the second frequency domain resource, the first subframe is the first subframe in two consecutive subframes, and the second subframe is the second subframe in the two consecutive subframes, and determining, in at least one of the first subframe or the second subframe, a guard period for retuning.

Claims20

Dependent claims

A retuning method, comprising:

determining, by a terminal device, a first resource and a second resource, wherein the first resource is used to send a sounding reference signal, wherein the first resource comprises a first frequency domain resource and at least one symbol of a first subframe, wherein the at least one symbol comprises the last symbol of the first subframe, wherein the second resource is used to send a physical uplink shared channel or a physical uplink control channel, wherein the second resource comprises a second frequency domain resource and a second subframe, wherein all or a part of the first frequency domain resource is not in the second frequency domain resource, wherein the first subframe is the first subframe in two consecutive subframes, and wherein the second subframe is the second subframe in the two consecutive subframes;
and
determining, by the terminal device in at least one of the first subframe or the second subframe based on a quantity of symbols required for retuning from the first resource to the second resource, a guard period for the retuning, wherein the guard period is used to forbid the terminal device to send an uplink signal in the guard period.

A retuning apparatus, comprising:

a memory storing program instructions;
and
at least one processor coupled to the memory, wherein the program instructions, when executed by the at least one processor, cause the apparatus to:
determine a first resource and a second resource, wherein the first resource is used to send a sounding reference signal, wherein the first resource comprises a first frequency domain resource and at least one symbol of a first subframe, wherein the at least one symbol comprises the last symbol of the first subframe, wherein the second resource is used to send a physical uplink shared channel or a physical uplink control channel, wherein the second resource comprises a second frequency domain resource and a second subframe, wherein all or a part of the first frequency domain resource is not in the second frequency domain resource, wherein the first subframe is the first subframe in two consecutive subframes, and wherein the second subframe is the second subframe in the two consecutive subframes;
and
determine, in at least one of the first subframe or the second subframe based on a quantity of symbols required for retuning from the first resource to the second resource, a guard period for the retuning, wherein the guard period is used to forbid the apparatus to send an uplink signal in the guard period.

3 more elements

A network device, comprising:

a memory storing program instructions;
and
a processor coupled to the memory, wherein the program instructions, when executed by the processor, cause the network device to:
determine, based on a quantity of symbols required for retuning from a first resource to a second resource by a terminal device, a guard period for the retuning, wherein the guard period is in at least one of a first subframe or a second subframe, wherein the guard period is used to forbid the terminal device to send an uplink signal in the guard period, wherein the first resource is used for receiving a sounding reference signal, wherein the first resource comprises a first frequency domain resource and at least one symbol of the first subframe, wherein the at least one symbol comprises the last symbol of the first subframe, wherein the second resource is used for receiving a physical uplink control channel or a physical uplink shared channel, wherein the second resource comprises a second frequency domain resource and the second subframe, wherein all or a part of the first frequency domain resource is not in the second frequency domain resource, wherein the first subframe is the first subframe in two consecutive subframes, and wherein the second subframe is the second subframe in the two consecutive subframes;
and
determine that no uplink signal from the terminal device exists in the guard period.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/520,728Filed 24 Jul 2019 · continuation
Priority: 24 Jan 2017
Published: US 2019/0349916 A114 Nov 2019
Granted: 6 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04W 72/51
Allocation or scheduling criteria for wireless resources: based on terminal or device properties
H04L 5/0037
Arrangements for allocating sub-channels of the transmission path: inter-user or inter-terminal allocation
H04L 5/0051
Allocation of pilot signals, i.e. of signals known to the receiver: of dedicated pilots, i.e. pilots destined for a single user or terminal
H04W 72/04
Local resource management: wireless resource allocation