Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for reducing NAS signaling of LCS and LPP programs

A program and additional information technology, applied in the field of signal transmission, can solve problems such as inefficient transmission of LPP/LCS messages

Inactive Publication Date: 2021-01-05
MEDIATEK SINGAPORE PTE LTD SINGAPORE
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Following the current specification TS 24.301, control plane service requests and uplink generic NAS transmissions (which include LPP or LCS messages) must be sent separately over the radio link due to the following restrictions, resulting in an LPP / LCS procedure (e.g. location request inefficient transmission of LPP / LCS messages during

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
  • Method for reducing NAS signaling of LCS and LPP programs
  • Method for reducing NAS signaling of LCS and LPP programs
  • Method for reducing NAS signaling of LCS and LPP programs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: UE starts the location service request process in idle mode

[0048] (Take MOLR OTDOA as an example)

[0049] figure 2 It shows the process of UE initiating location service request in idle mode.

[0050] Such as figure 2 As shown, the UE is in idle mode, has an LCS message to send, and triggers a service request procedure. Perform random access and RRC connection establishment (Random Access and RRC Connection Establishment) between UE and eNB.

[0051] After that, the UE sends an RRC Connection Setup Complete (RRC Connection Setup Complete) message carrying NAS to the eNB. LCS related messages may be exchanged between UE and E-SMLC. The eNB sends S1AP to the MME: an initial UE message (initial UE message), and the LCS related message can be encapsulated in a NAS message for transmission between the UE and the MME. These NAS messages may also be encapsulated in SlAP NAS transport messages (which are SlAP related messages) for transport between eNB...

Embodiment 2

[0057] Embodiment 2: UE starts the location service request process in connected mode

[0058] (Take MOLR OTDOA as an example)

[0059] image 3 It shows the process of UE initiating location service request in connected mode.

[0060] Such as image 3 As shown, the UE is in connected mode with an LCS message to send.

[0061] The UE sends an RRC UL Information Transfer (RRC UL Information Transfer) message carrying NAS to the eNB. LCS related messages can be exchanged between UE and E-SMLC, LCS related messages can be encapsulated in NAS messages for transmission between UE and MME. The eNB sends an S1AP: Uplink NAS Transport (S1AP: Uplink NAS Transport) message to the MME. These NAS messages may also be encapsulated in SlAP uplink NAS transmissions (which are SlAP related messages) for transmission between eNB and MME. The MME sends a LCS-AP: location request to the E-SMLC, and LCS-related messages can be encapsulated in an LCS-AP message for transmission between the M...

Embodiment 3

[0068] Embodiment 3: Method for UE to send LCS message / LPP message

[0069] Embodiment 3-1: Figure 4 A flow chart of UE sending an LCS message to the network is shown. Such as Figure 4 As shown, in step 402, the UE has an LCS message to be sent. Subsequently, in step 404, it is judged whether the UE is in idle mode or connected mode.

[0070] If the UE is in the idle mode, the flow goes to step 406, and the LCS message is encapsulated into a control plane service request message. Subsequently, in step 408, a control plane service request message is sent.

[0071] If the UE is in the connected mode, in step 410, the LCS message is encapsulated into an uplink generic NAS transport message (Uplink Generic NAS Transport Message). Then, at step 412, the uplink generic NAS transport message is sent.

[0072] Embodiment 3-2: Figure 5 A flowchart showing the MME sending the LCS message to the E-SMLC upon receipt of the initial UE message. Such as Figure 5 As shown, in step ...

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 invention relates to a method for reducing NAS signaling of LPP and LCS programs initiated by UE in an EMM idle mode and an EMM registration state. The disclosed method relates to various methodsof encapsulating LPP / LCS messages into a control plane service request. Thus, transmission of LPP / LCS messages during an RRC connection setup procedure is possible, and can be regarded as an extensionof control plane EPS CIoT optimization.

Description

technical field [0001] The present invention relates to efficient signal transmission in Narrowband Internet of Things (NB-IOT), and in particular to a method for non-access stratum (NAS, non-access stratum) transmission of LCS and LPP. Background technique [0002] Machine type communication (MTC), or more specifically, narrowband Internet of Things (NB-IoT), represents a significant growth opportunity for the 3rd Generation Partnership Project (3GPP) ecosystem. NB-IoT is a low-power wide-area radio technology standard developed by 3GPP to support a wide range of IoT applications and services. [0003] In order to support IoT, 3GPP has designated NB-IoT as one of the new cellular radio technologies, which inherits the general functions of LTE, and has been simplified and optimized to provide lower power consumption, better coverage, and support Large numbers of low-throughput devices with relaxed latency requirements. The 3GPP work item CIoT-CT defines the phase 3 protoco...

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 Applications(China)
IPC IPC(8): H04W4/70H04L5/00H04W76/27H04W4/14
CPCH04W4/70H04L5/0053H04W4/14H04W76/27H04W64/00H04W4/02H04L67/52H04L12/4633H04L67/125H04L69/321H04L69/22H04L69/329H04W76/20H04W4/029G01S5/0063H04W4/12
Inventor 薛学儒宁涛马各·纳耶米皇甫建君
Owner MEDIATEK SINGAPORE PTE LTD SINGAPORE