Data transmission method, device, and system

Patent metadata

Field	Value
Publication number	US-10958364-B2
Application number	US-201715728263-A
Country	US
Kind code	B2
Filing date	Oct 9, 2017
Priority date	Apr 10, 2015
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

The present disclosure discloses a data transmission method, a device, and a system, relates to the communications field, and can resolve a prior-art problem that a receive end cannot correctly receive data because a starting moment of sending information on a license-exempt spectrum cannot be determined. A specific solution is as follows: A first device detects first information of a first serving cell in a preset time period of a first subframe on a first time resource or a first time set of a subframe on a first time resource, determines a starting position of a second time resource according to the first information, and detects second information of the first serving cell in a second time set of a subframe on the second time resource. The present disclosure is used for data transmission.

First claim

What is claimed is:

1. A device, comprising:
a non-transitory memory storing program instructions; and
at least one processor coupled to the non-transitory memory, wherein the instructions, when executed by the at least one processor, cause the device to:
detect at least two pieces of duration information of a first serving cell, wherein each piece of duration information of the at least two pieces of duration information respectively comprises information about a length of a last subframe on a time resource, and wherein the time resource is comprised in a time period in which the first serving cell occupies an unlicensed spectrum; and
determine an ending moment of the time resource according to a last piece of detected duration information of the at least two pieces of duration information.

2. The device according to claim 1 , wherein:
the at least two pieces of duration information are carried on a physical layer common control channel.

3. A device, comprising:
a non-transitory memory storing program instructions; and
at least one processor coupled to the non-transitory memory, wherein the instructions, when executed by the at least one processor, cause the device to:
determine an ending moment of a time resource, wherein the time resource is comprised in a time period in which a first serving cell occupies an unlicensed spectrum; and
send at least two pieces of duration information to a terminal device, wherein each piece of duration information of the at least two pieces of duration information respectively comprises information about a length of a last subframe on the time resource.

4. The device according to claim 3 , wherein:
the at least two pieces of duration information are carried on a physical layer common control channel.

5. A data transmission method, comprising:
detecting, by a device, at least two pieces of duration information of a first serving cell, wherein each piece of duration information of the at least two pieces of duration information respectively comprises information about a length of a last subframe on a time resource, and wherein the time resource is comprised in a time period in which the first serving cell occupies an unlicensed spectrum; and
determining, by the device, an ending moment of the time resource according to a last piece of duration information of the at least two pieces of duration information.

6. The method according to claim 5 , wherein:
the at least two pieces of duration information are carried on a physical layer common control channel.

7. A data transmission method, comprising:
determining, by a device, an ending moment of a time resource, wherein the time resource is comprised in a time period in which a first serving cell occupies an unlicensed spectrum; and
sending, by the device, at least two pieces of duration information to a terminal device, wherein each piece of duration information of the at least two pieces of duration information respectively comprises information about a length of a last subframe on the time resource.

8. The method according to claim 7 , wherein:
the at least two pieces of duration information are carried on a physical layer common control channel.

Assignees

• Huawei Tech Co Ltd

Inventors

• Zheng Juan
• Yan Zhiyu
• Li Qiang
• Ma Sha

Classifications

• H04L27/2601

  Multicarrier modulation systems · CPC title

• H04L5/0078 Primary

  Timing of allocation · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L5/0007

  the frequencies being orthogonal, e.g. OFDM(A) or DMT · CPC title