Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Control method for uplink transmission power in accessing upward packets in high speed

A transmission power control and power technology, which is applied in the direction of transmission control/equalization, power management, digital transmission system, etc., can solve the problems of readjusting E-DPDCH transmission power, affecting the application of HSUPA technology, and failing to guarantee the quality of SI transmission. Achieve flexible uplink transmission power, improve service quality, and improve transmission quality

Inactive Publication Date: 2009-07-08
HUAWEI TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the current existing technology, when sending SI while sending service data in the soft handover state, the power offset is only calculated according to the service data and the transmission power of E-DPDCH is determined, and the E-DPDCH is not readjusted due to the transmission of SI. -DPDCH transmission power, therefore, cannot guarantee the transmission quality of SI, thus cannot ensure that the serving cell can receive SI correctly, so the serving cell cannot effectively respond to the UE's scheduling request or receive the UE's feedback on the scheduling result, affecting the application of HSUPA technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control method for uplink transmission power in accessing upward packets in high speed
  • Control method for uplink transmission power in accessing upward packets in high speed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 is a transmit power control method when the network transmits the self-configured SI power offset parameter to the UE through configuration signaling. figure 1 Shown is the process of implementing E-DPDCH transmission power control in this embodiment, including the following steps:

[0041] Step 101: When the network determines to map the service to HSUPA, the network configures the power offset parameter of the SI, carries the power offset parameter of the SI in the configuration signaling and sends it to the UE.

[0042] The configuration signaling refers to signaling during the establishment or reconfiguration process of services or radio links, such as radio bearer setup (RB setup), radio bearer reconfiguration (RB reconfig), physical channel reconfiguration (PHY channel reconfig) Wait for signaling.

[0043] According to specific application scenarios, the power bias parameters of the SI configured by the network can be in various forms, which are as ...

Embodiment 2

[0059] Embodiment 2 is a transmit power control method when the network transmits the SI power offset parameter configured by the network to the UE through an active set update message. figure 2 Shown is the process of implementing E-DPDCH transmission power control in this embodiment, including the following steps:

[0060] Step 201: When the network detects that the active set cell of the UE has changed, the network determines the number of soft handover branches of the UE, calculates the power offset of SI according to the number of soft handover branches of the UE, and carries it in the active set update message sent to the UE. Alternatively, the network may pre-configure SI power offsets corresponding to different numbers of soft handover branches. When the network detects a change in the active set cell of the UE, the network directly selects the corresponding SI power offset according to the number of soft handover branches of the UE. and send it to the UE under the a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The method for controlling upgoing transmission power includes steps: when deciding to send service data, user equipment (UE) also decides to send scheduling information (SI), and make sure that self is in soft switching state; determining bias power of service data to be sent, and bias power of SI to be sent; calculating summation of bias power of service data to be sent and bias power of SI to be sent so as to obtain total bias power. Based on total bias power, the invention determines upgoing transmission power. The disclosed method raises quality for sending SI so as to guarantee service cell can receive SI correctly.

Description

technical field [0001] The present invention relates to power control technology, in particular to an uplink transmission power control method in high-speed uplink packet access (HSUPA). Background technique [0002] HSUPA is an uplink high-speed data service enhancement technology of Wideband Code Division Multiple Access (WCDMA). HSUPA technology adopts fast retransmission, hybrid automatic retransmission (HARQ) and base station-based distributed control method to complete the high-speed uplink data transmission function. HSUPA adds two channels in the uplink: Enhanced Dedicated Physical Data Channel (E-DPDCH) and Enhanced Dedicated Physical Control Channel (E-DPCCH). [0003] HSUPA supports soft handover, that is, a user equipment (UE) can establish wireless connections with multiple cells at the same time. The set of multiple cells connected to the UE at the same time is called an active set, and one cell in the active set is set as a serving cell. [0004] The UE send...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/005H04L12/56H04W52/14
Inventor 张劲林秦亚莉
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com