Uplink power control method, network node and system

A network node and power control technology, applied in the field of communication, can solve problems such as insufficient uplink transmission power

Active Publication Date: 2016-11-23
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an uplink power control method, network node, and system, which can solve the problem that the UE's uplink transmission power cannot meet the requirements of all base stations and make full use of carrier resources in the carrier aggregation scenario

Method used

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  • Uplink power control method, network node and system
  • Uplink power control method, network node and system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0034] This embodiment provides an uplink power control method, such as figure 1 As shown, the method includes:

[0035] 101. The first network node sends a first indication message to a second network node, where the first indication message includes a time pattern and / or a maximum transmission power of a user equipment UE performing uplink transmission on the second network node, wherein, The time pattern is used to control the transmission time of the UE for uplink transmission.

[0036] Optionally, before the first network node sends the first indication message to the second network node, the method further includes: the first network node receiving a second indication message sent by the UE, the second The indication message is used to indicate that the uplink data buffered by the UE to be sent to the second network node exceeds a first predetermined threshold; the first network node determines that the UE performs uplink transmission on the second network node The tim...

Embodiment 2

[0047] This embodiment provides an uplink power control method, such as figure 2 As shown, the method includes:

[0048] 201. The second network node receives a first indication message sent by a first network node, where the first indication message includes a time pattern and / or a maximum transmit power of a user equipment UE performing uplink transmission on the second network node.

[0049] 202. The second network node limits the scheduling of uplink transmission for the UE within the time pattern and / or the maximum transmission power according to the first indication message.

[0050] Optionally, before the second network node receives the first indication message sent by the first network node, the method further includes: the second network node receiving a second indication message sent by the UE, the first The two indication messages are used to indicate that the uplink data cached by the UE to be sent to the second network node exceeds a first predetermined thresho...

Embodiment 3

[0057] This embodiment provides an uplink power control method, the first network node is the primary base station, and the second network node is the secondary base station, for example image 3 As shown, the method includes:

[0058] 301. An MME (Mobility Management Entity, mobility management entity) sends a bearer establishment request to a master base station.

[0059] The bearer establishment request includes the UE corresponding to the bearer to be created and the service requirement information of the bearer.

[0060] Optionally, the MME may also send a bearer deletion request or a bearer modification request to the master base station.

[0061] 302. The primary base station determines a secondary base station to establish the new bearer, and sends a bearer establishment request to the secondary base station.

[0062] Specifically, after receiving the bearer establishment request, the primary base station decides which secondary base station to establish the radio be...

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Abstract

Embodiments of the present invention disclose an uplink power control method, a network node, and a system, and relate to the field of communication technologies. The method includes: a first network node sends a first indication message to a second network node, and the first indication message includes The time pattern and / or the maximum transmit power for the user equipment UE to perform uplink transmission on the second network node, where the time pattern is used to control the transmission time for the UE to perform uplink transmission. The present invention is suitable for controlling the uplink power of user equipment UE in the carrier aggregation scenario.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to an uplink power control method, network node and system. Background technique [0002] In Release-10 (version 10) of the 3GPP (3rd Generation Partnership Project, third generation partnership project) LTE (LongTerm Evaluation, long-term evolution) system, a CA (Carrier Aggregation, carrier aggregation) inside a base station is supported. Carrier aggregation is Multiple relatively narrow-band carriers are aggregated into a wider frequency spectrum to meet the spectrum requirements of the LTE system. The CA inside a base station supports carrier aggregation of at most 5 cells, that is, a UE (User Equipment, user equipment) can simultaneously perform data transmission on at most 5 cells. For a UE working in the CA state, the cell initially accessing the system is a PCell (Primary Cell, primary cell), and then the SCell (Secondary Cell) can be added, modified or d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14
CPCH04W52/146H04W52/367H04W52/40H04W52/346H04W72/20
Inventor 曾清海黄曲芳
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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