Data transmission method and apparatus

Patent metadata

Field	Value
Publication number	US-11601958-B2
Application number	US-202017100558-A
Country	US
Kind code	B2
Filing date	Nov 20, 2020
Priority date	Sep 24, 2015
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

The present disclosure relates to the mobile communications field, and in particular, to a transmission resource determining technology in a wireless communications system. In a data transmission method, a network device determines a transmission resource used for data transmission, and performs data transmission with a terminal device on the determined transmission resource. A time domain resource occupied by the transmission resource in a time domain is one of N types of time domain resources, and a time length of any type of time domain resource in the N types of time domain resources is less than 1 ms. According to this method, a data transmission latency can be effectively reduced, thereby meeting a requirement for a low-latency service.

First claim

The invention claimed is:

1. An apparatus, comprising:
one or more processors, and
a non-transitory storage medium configured to store program instructions; wherein, when executed by the one or more processors, the program instructions cause the apparatus to:
determine a transmission resource for at least one physical uplink control channel (PUCCH), wherein a time domain resource occupied by the transmission resource is at least one time unit of M time units comprised in one subframe, each time unit of the M time units is one of N types of time domain resources, the N types of time domain resources comprise time domain resources whose time lengths are respectively one symbol, two symbols, three symbols, four symbols, and seven symbols, a time length of at least one type of time domain resource in the N types of time domain resources is less than 1 millisecond, and N is a positive integer and greater than 1; and
send the at least one PUCCH on the transmission resource, wherein:
the transmission resource comprises a first transmission resource and a third transmission resource,
the time domain resource occupied by the first transmission resource and the third transmission resource are separately an ith time unit and a jth time unit in M time units included in one subframe, wherein M is a positive integer, i is a positive integer and no greater than M, j is a positive integer and no greater than M, i is not equal to j, and
the first transmission resource and the third transmission resource occupy different frequency domain resources and carry same data.

2. The apparatus according to claim 1 , wherein:
M=2; or
M=4, and the four time units comprised in the one subframe are orderly a first time unit, a second time unit, a third time unit, and a fourth time unit, wherein:
a time length of the first time unit is three symbols, a time length of the second time unit is four symbols, a time length of the third time unit is four symbols, and a time length of the fourth time unit is three symbols;
the i th time unit is the first time unit, the j th time unit is the second time unit; or
the i th time unit is the third time unit, the j th time unit is the fourth time unit.

3. The apparatus according to claim 2 , wherein:
the four symbols of the second time unit or the third time unit comprise two symbols used to transmit a physical signal and two symbols used to transmit a physical channel, the two symbols used to transmit the physical signal are middle two symbols of the four symbols; or
the three symbols of the first time unit or the fourth time unit comprise one symbols used to transmit a physical signal and two symbols used to transmit a physical channel, the one symbol used to transmit the physical signal is the second symbol of the three symbols.

4. The apparatus according to claim 1 , wherein the transmission resource is located in a first serving cell and a time length of the time domain resource occupied by the transmission resource is less than 1 millisecond;
wherein the program instructions further cause the apparatus to:
determine another transmission resource located in a second serving cell, wherein a time domain resource occupied by the another transmission resource is 1 millisecond or one subframe; and
send data on the another transmission resource.

5. The apparatus according to claim 1 , wherein determine a transmission resource for at least one PUCCH, comprises:
determine, according to higher layer signaling or physical layer signaling, the time domain resource occupied by the transmission resource is one type of configurable time domain resource, wherein the higher layer signaling or the physical layer signaling indicates that the configurable time domain resource is which type or types of the N types of time domain resources.

6. The apparatus according to claim 1 , wherein the program instructions further cause the apparatus to:
report information to a network device, wherein the information indicates that the apparatus supports which type or types of time domain resources.

7. A data transmission method, comprising:
determining a transmission resource for at least one physical uplink control channel (PUCCH), wherein a time domain resource occupied by the transmission resource is at least one time unit of M time units comprised in one subframe, each time unit of the M time units is one of N types of time domain resources, the N types of time domain resources comprise time domain resources whose time lengths are respectively one symbol, two symbols, three symbols, four symbols, and seven symbols, a time length of at least one type of time domain resource in the N types of time domain resources is less than 1 millisecond, and N is a positive integer and greater than 1; and
sending the at least one PUCCH on the transmission resource, wherein:
the transmission resource comprises a first transmission resource and a third transmission resource,
the time domain resource occupied by the first transmission resource and the third transmission resource are separately an ith time unit and a jth time unit in M time units included in one subframe, wherein M is a positive integer, i is a positive integer and no greater than M, j is a positive integer and no greater than M, i is not equal to j, and
the first transmission resource and the third transmission resource occupy different frequency domain resources and carry same data.

8. The method according to claim 7 , wherein:
M=2; or
M=4, and the four time units comprised in the one subframe are orderly a first time unit, a second time unit, a third time unit, and a fourth time unit, wherein:
a time length of the first time unit is three symbols, a time length of the second time unit is four symbols, a time length of the third time unit is four symbols, and a time length of the fourth time unit is three symbols;
the i th time unit is the first time unit, the j th time unit is the second time unit; or
the i th time unit is the third time unit, the j th time unit is the fourth time unit.

9. The method according to claim 8 , wherein:
the four symbols of the second time unit or the third time unit comprise two symbols used to transmit a physical signal and two symbols used to transmit a physical channel, the two symbols used to transmit the physical signal are middle two symbols of the four symbols; or
the three symbols of the first time unit or the fourth time unit comprise one symbols used to transmit a physical signal and two symbols used to transmit a physical channel, the one symbol used to transmit the physical signal is the second symbol of the three symbols.

10. An apparatus, comprising:
one or more processors, and
a non-transitory storage medium configured to store program instructions; wherein, when executed by the one or more processors, the program instructions cause the apparatus to:
determine a transmission resource for at least one physical uplink control channel (PUCCH), wherein a time domain resource occupied by the transmission resource is at least one time unit of M time units comprised in one subframe, each time unit of the M time units is one of N types of time domain resources, the N types of time domain resources comprise time domain resources whose time lengths are respectively one symbol, two symbols, three symbols, four symbols, seven symbols, a time length of at least one type of time domain resource in the N types of time domain resources is less than 1 millisecond, and N is a positive integer and greater than 1 ; and
receive the at least one PUCCH on the transmission resource, wherein:
the transmission resource comprises a first transmission resource and a third transmission resource,
the time domain

Assignees

• Huawei Tech Co Ltd

Inventors

• Li Chaojun
• Ma Sha

Classifications

• H04W16/10

  Dynamic resource partitioning · CPC title

• H04L5/0053

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

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04L5/0044 Primary

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

• H04L1/1812 Primary

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title