US 11,381,363 B2Granted

Signal transmission method and apparatus

AssigneeHuawei Technologies Co., Ltd.

InventorsJunchao Li, Chi Zhang, Zhengwei Gong

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Abstract

Embodiments of this application provide a signal transmission method and apparatus. The method includes: receiving, by a terminal device, configuration information sent by a network device, where the configuration information is used to instruct the terminal device to send a reference signal, and a resource used to transmit the reference signal is determined based on a public cell identity of a cell to which the terminal device belongs; and sending, by the terminal device, the reference signal based on the configuration information by using the resource. According to the signal transmission method and apparatus in the embodiments of this application, an existing reference signal can be used to perform interference/channel measurement between terminal devices, so that a terminal device on a receiving side can distinguish between interference cells while reference signal utilization is improved.

Claims20

Dependent claims

A signal transmission method, comprising:

receiving, by a terminal device, configuration information sent by a network device, wherein the configuration information is configured to instruct the terminal device to send a reference signal, and a resource for transmitting the reference signal is determined based on a public cell identity of a cell to which the terminal device belongs;
and
sending, by the terminal device, the reference signal based on the configuration information by using the resource to at least one other terminal device in a neighboring cell,
wherein the configuration information is further configured to indicate whether the reference signal is used for interference/channel measurement between terminal devices, and when the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices, the configuration information is further configured to indicate whether the terminal device is a sender or a receiver,
wherein the sending, by the terminal device, the reference signal based on the configuration information by using the resource comprises:
upon determining that the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices and the configuration information indicates that the terminal device is a sender, determining, by the terminal device, the resource based on the public cell identity (PCI) of the cell to which the terminal device belongs, and
sending, by the terminal device, the reference signal by using the resource.

4 more elements

A signal transmission method, comprising:

adding, by a network device, configuration information onto a physical channel, wherein the configuration information is configured to instruct a terminal device to send a reference signal, a resource for transmitting the reference signal is determined based on a public cell identity of a cell to which the terminal device belongs, the configuration information is further configured to indicate whether the reference signal is used for interference/channel measurement between terminal devices, and when the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices, the configuration information is further configured to indicate whether the terminal device is a sender or a receiver;
and
sending, by the network device, the configuration information to the terminal device through the physical channel, to enable the terminal device to send the reference signal based on the configuration information by using the resource to at least one other terminal device in a neighboring cell when the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices and the configuration information indicates that the terminal device is a sender.

A signal transmission apparatus, comprising:

a transceiver, configured to:
receive configuration information sent by a network device, wherein the configuration information is configured to instruct the signal transmission apparatus to send a reference signal, and a resource for transmitting the reference signal is determined based on a public cell identity of a cell to which the signal transmission apparatus belongs;
and
send the reference signal based on the configuration information by using the resource to at least one other signal transmission apparatus in a neighboring cell, and
at least one processor configured to:
after receiving the configuration information, determine the resource based on the public cell identity of the cell to which the signal transmission apparatus belongs;
and
send the reference signal by using the resource,
wherein the configuration information is further configured to indicate whether the reference signal is used for interference/channel measurement between terminal devices, and when the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices, the configuration information is further configured to indicate whether the terminal device is a sender or a receiver, and
wherein the transceiver is further configured to:
upon determining that the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices and the configuration information indicates that the terminal device is a sender, send the reference signal by using the resource.

8 more elements

A signal transmission apparatus, comprising:

a processor, configured to add configuration information onto a physical channel, wherein the configuration information is configured to instruct a terminal device to send a reference signal, a resource for transmitting the reference signal is determined based on a public cell identity of a cell to which the terminal device belongs, the configuration information is further configured to indicate whether the reference signal is used for interference/channel measurement between terminal devices, and when the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices, the configuration information is further configured to indicate whether the terminal device is a sender or a receiver;
and
a transmitter, configured to send the configuration information to the terminal device through the physical channel, to enable the terminal device to send the reference signal based on the configuration information by using the resource to at least one other terminal device in a neighboring cell when the configuration information indicates that the reference signal is used for interference/channel measurement between terminal devices and the configuration information indicates that the terminal device is a sender.

Dependencies are inferred from the claim text.

Facts

Application: 16/503,514Filed 4 Jul 2019 · continuation
Priority: CN 201710008292.75 Jan 2017
Published: US 2019/0356448 A121 Nov 2019
Granted: 5 Jul 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

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
H04L 5/0094
Signalling for the administration of the divided path, e.g. signalling of configuration information: indication of how sub-channels of the path…
H04L 5/0037
Arrangements for allocating sub-channels of the transmission path: inter-user or inter-terminal allocation
H04L 25/0226
Using sounding signals: sounding signals per se