A data transmission method and base station

A technology of data transmission and base station, which is applied in the field of data transmission and can solve the problems of reducing the amount of transmitted data and data throughput.

Active Publication Date: 2017-07-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, without distinguishing the service requirements of user terminals, the user terminals are paired to form a multi-antenna terminal group, which reduces the amount of transmitted data per unit time of user terminals and the data throughput of the system

Method used

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  • A data transmission method and base station
  • A data transmission method and base station
  • A data transmission method and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] An embodiment of the present invention provides a method for data transmission, such as figure 1 shown, including the following steps:

[0072] 101. Select a first user terminal to be matched in the first terminal group, and select N-1 second user terminals to be matched in the second terminal group; wherein, the first user terminal to be matched is in the first terminal group A user terminal that enables the guaranteed bit rate (GBR) service.

[0073] The user terminals in the first terminal group are scheduled user terminals, and the user terminals in the second terminal group are unscheduled user terminals. The scheduled user terminal refers to the user terminal that has been assigned a channel, and N is the total number of user terminals that the system allows pairing, and is greater than or equal to 2.

[0074] 102. Obtain the pre-paired service rate. The service rate after the pre-pairing includes the service rate after the first user terminal to be matched is ...

Embodiment 2

[0081] An embodiment of the present invention provides a method for data transmission, such as figure 2 shown, including the following steps:

[0082] 201. Preset a fixed loss tolerance for each of the user terminals that enable the guaranteed bit rate (GBR) service.

[0083] The system can set the loss tolerance of each user terminal that opens the guaranteed bit rate GBR service to a fixed value according to the actual situation. The actual situation can be that the GBR (Guaranteed Bit Rate, Guaranteed Bit Rate) service opened by the user terminal is relatively single. , For example, the GBR services enabled by user terminals in a certain area are all real-time call services.

[0084] 202. Select a first user terminal to be matched in the first terminal group, and select N-1 second user terminals to be matched in the second terminal group.

[0085] Wherein, the first user terminal to be matched is a user terminal that enables GBR (guaranteed bit rate, guaranteed bit rate)...

Embodiment 3

[0105] An embodiment of the present invention provides a data transmission method.

[0106] According to the technical characteristics of MU-MIMO, it can be seen that a successfully paired multi-antenna terminal group can improve the throughput of the system, but at the cost of sacrificing the transmission amount per unit time of a single user terminal. The user terminals that enable the GBR service must guarantee the data transmission volume per unit time, that is, the service rate. Therefore, the service rate of the user terminals that enable the GBR service in the multi-antenna terminal group cannot be reduced below the service rate that must be guaranteed by the user terminals of the GBR service. . For example, assume that the GBR service rate of a user terminal A must be guaranteed to be 1000 bits / s. If the service rate of user terminal A after pairing with a multi-antenna terminal group is 800 bits / s, then user terminal A cannot participate in the pairing. The parameter f...

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Abstract

The present invention relates to the field of communications. Disclosed are a data transmission method and a base station, to solve the technical problem that because service requirements of user terminals are not distinguished in an MU-MIMO system, the data transmission amount of the user terminals per unit time and the system data throughput are low. The data transmission method comprises: selecting a first user terminal to be matched from a first terminal group, and selecting N-1 second user terminals to be matched from a second terminal group; determining whether the loss of a service rate after pre-pairing falls in a corresponding range of loss tolerance; when the loss falls in the range of loss tolerance, determining whether a total service rate of a multi-antenna terminal group after pairing is higher than a service rate before pre-pairing of the first user terminal to be matched; and if the total service rate is higher than the service rate before pre-pairing, pairing the first user terminal to be matched and the second user terminals to be matched to form the multi-antenna terminal group. The present invention is mainly applied in an MU-MIMO service of a base station.

Description

technical field [0001] The present invention relates to the communication field, in particular to a data transmission method and a base station. Background technique [0002] Multi Input Multi Output (MIMO) technology is a technology to increase data throughput in wireless communication without increasing the transmission power of the sending end. Its mechanism is to set multiple antennas at the sending end and Send data independently, and at the same time set multiple antennas at the receiving end to receive the data sent by the sending end. [0003] In a common application scenario, a user terminal in a multi-user MIMO (Multi-User MIMO, MU-MIMO) system can install one antenna, and a base station can install multiple antennas. Since there are multiple user terminals under the base station, the base station can Multiple user terminals are matched to form a multi-antenna terminal group, and then data is transmitted. [0004] The formation of a multi-antenna terminal group i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H04W88/08
CPCH04W72/12
Inventor 李亮亮
Owner HUAWEI TECH CO LTD
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