Data transmission method, base station, and user equipment

Patent metadata

Field	Value
Publication number	US-2016150572-A1
Application number	US-201615010336-A
Country	US
Kind code	A1
Filing date	Jan 29, 2016
Priority date	Jul 30, 2013
Publication date	May 26, 2016
Grant date	—

Abstract

Embodiments of the present invention provide a data transmission method, a base station, and user equipment, where the method includes: receiving bundling capability information sent by user equipment, where the Bundling capability information includes: information used to indicate that the user equipment has a capability of transmitting first data for M times, where M is a maximum quantity of transmission times that is supported by the user equipment for the first data, and M≧2; and performing transmission of the first data with the user equipment for N times according to the Bundling capability information, where N≦M.

First claim

What is claimed is:

1 . A data transmission method, comprising:
receiving bundling capability information sent by user equipment, wherein the Bundling capability information comprises: information used to indicate that the user equipment has a capability of transmitting first data for M times, wherein M is a maximum quantity of transmission times that is supported by the user equipment for the first data, and M≧2; and performing transmission of the first data with the user equipment for N times according to the Bundling capability information, wherein N≦M.

2 . The method according to claim 1 , wherein:
the Bundling capability information comprises physical random access channel PRACH Bundling capability information; the first data comprises a preamble; and the performing transmission of the first data with the user equipment for N times comprises: receiving, for N times, the preamble sent by the user equipment.

3 . The method according to claim 2 , before the receiving, for N times, the preamble sent by the user equipment, comprising:
configuring a PRACH resource Bundling parameter for the user equipment, wherein the PRACH resource Bundling parameter comprises at least one of the following parameters: at least one quantity of transmission times, a PRACH resource corresponding to each quantity of transmission times, a preamble corresponding to each quantity of transmission times, and a start location of the PRACH resource corresponding to each quantity of transmission times, wherein each quantity of transmission times is less than or equal to M; and sending the PRACH resource Bundling parameter to the user equipment, wherein: the at least one quantity of transmission times is used by the user equipment to select one from the at least one quantity of transmission times as N.

4 . The method according to claim 3 , wherein:
the start location of each PRACH resource is a subframe that starts from a system frame number 0 and has a PRACH resource; PRACH resources are adjacent subframes that start from the start location and have PRACH resources and whose quantity is equal to a quantity of transmission times that is corresponding to the PRACH resources, wherein the PRACH resources are periodically configured; and each quantity of transmission times is corresponding to at least one preamble.

5 . A data transmission method, comprising:
sending bundling capability information to a base station, wherein the Bundling capability information comprises: information used to indicate that user equipment has a capability of transmitting first data for M times, wherein M is a maximum quantity of transmission times that is supported by the user equipment for the first data, and M≧2; and performing transmission of the first data with the base station for N times according to the Bundling capability information, wherein N≦M.

6 . The method according to claim 5 , wherein:
the Bundling capability information comprises physical random access channel PRACH Bundling capability information; the first data comprises a preamble; and the performing transmission of the first data with the base station for N times comprises: sending the preamble to the base station for N times.

7 . The method according to claim 6 , wherein before the sending the preamble to the base station for N times, the method comprises:
receiving a PRACH resource Bundling parameter sent by the base station, wherein the PRACH resource Bundling parameter comprises at least one of the following parameters: at least one quantity of transmission times, a PRACH resource corresponding to each quantity of transmission times, a preamble corresponding to each quantity of transmission times, and a start location of the PRACH resource corresponding to each quantity of transmission times, wherein each quantity of transmission times is less than or equal to M; and selecting N from the at least one quantity of transmission times according to the PRACH resource Bundling parameter; and the sending the preamble to the base station for N times comprises: sending, to the base station for N times according to N, a preamble corresponding to N.

8 . The method according to claim 7 , wherein:
the start location of each PRACH resource is a subframe that starts from a system frame number 0 and has a PRACH resource; PRACH resources are adjacent subframes that start from the start location and have PRACH resources and whose quantity is equal to a quantity of transmission times that is corresponding to the PRACH resources, wherein the PRACH resources are periodically configured by the base station; and each quantity of transmission times is corresponding to at least one preamble.

9 . The method according to claim 7 , wherein the sending, to the base station for N times according to N, a preamble corresponding to N comprises:
sending, for N times according to N, the preamble on a PRACH resource corresponding to N; or sending, for N times according to N, the preamble on a PRACH resource except a PRACH resource corresponding to N.

10 . The method according to claim 5 , wherein the sending Bundling capability information to a base station comprises:
sending, to the base station, Bundling capability information carried in a feature group indicator; or sending, to the base station, Bundling capability information carried in capability information.

11 . A base station, comprising: a memory, a processor, a receiver, and a transmitter, wherein:
the memory is configured to store code of a data transmission method; the processor is configured to execute the code stored in the memory and control the receiver to receive bundling capability information sent by user equipment, wherein the Bundling capability information indicates a Bundling capability supported by the user equipment; and the processor is further configured to control, according to the Bundling capability information received by the receiver, the receiver or the transmitter to perform data transmission with the user equipment.

12 . The base station according to claim 11 , wherein:
the Bundling capability information received by the receiver comprises physical random access channel PRACH Bundling capability information; first data comprises a preamble; and the receiver is configured to receive, for N times, the preamble sent by the user equipment.

13 . The base station according to claim 12 , wherein:
the processor is further configured to execute the code stored in the memory and configure a PRACH resource Bundling parameter for the user equipment, wherein the PRACH resource Bundling parameter comprises at least one of the following parameters: at least one quantity of transmission times, a PRACH resource corresponding to each quantity of transmission times, a preamble corresponding to each quantity of transmission times, and a start location of the PRACH resource corresponding to each quantity of transmission times, wherein each quantity of transmission times is less than or equal to M; and the transmitter is configured to send the PRACH resource Bundling parameter to the user equipment, wherein: the at least one quantity of transmission times is used by the user equipment to select one from the at least one quantity of transmission times as N.

14 . The base station according to claim 13 , wherein:
the start location of each PRACH resource is a subframe that starts from a system frame number 0 and has a PRACH resource; PRACH resources are adjacent subframes that start from the start location and have PRACH resources and whose quantity is equal to a quantity of transmission times that i

Assignees

• Huawei Tech Co Ltd

Inventors

• Quan Wei
• Yang Xiaodong
• Hu Zhenxing
• Zhang Jian

Classifications

• H04L1/1607 Primary

  Details of the supervisory signal · CPC title

• H04W74/0833 Primary

  Random access procedures, e.g. with 4-step access · CPC title

• H04L1/189

  Transmission or retransmission of more than one copy of a message · CPC title

• H04L1/1896

  ARQ related signaling · CPC title