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14ce710049a3c611ebb26f3972649957 | 21.978 | 9.2.2 SPAN3 | ETSI SPAN (Services and Protocol for Advanced Networks) is ETSI’s core competence centre for fixed networks standardisation including IP based networks. SPAN3 (formerly SPS3) is the competence centre for IN Activities, including generic operations for INAP mobility. SPS3 work on Core INAP CS-3 has been split into two... |
14ce710049a3c611ebb26f3972649957 | 21.978 | 9.3 IETF | The Routing area contains the IP Routing for Wireless/Mobile Hosts (mobileIP) Working Group. It has developed routing support to permit IP nodes (hosts and routers) using either IPv4 or IPv6 to seamlessly roam among IP sub-networks and media types. The group has produced an Internet draft entitled “Requirements on Mobi... |
14ce710049a3c611ebb26f3972649957 | 21.978 | 9.4 ITU-T | |
14ce710049a3c611ebb26f3972649957 | 21.978 | 9.4.1 SG11 | Study Group SG11 is responsible for studies relating to signalling requirements and protocols for telephone, N-ISDN, B-ISGN, UPT, mobile and multimedia communications. SG11 is responsible for most of the Q-Series standards, including Q.931. Questions under study by the group include:
5/11 Intelligent network capability... |
14ce710049a3c611ebb26f3972649957 | 21.978 | 9.4.2 SG16 | Study Group16 is responsible for studies relating to multimedia service definition and multimedia systems, including the associated terminals, modems, protocols and signal processing. SG16 is responsible for the H-Series standards, including H.323, as well as parts of the T-, G-, and F-Series. Questions under study by ... |
14ce710049a3c611ebb26f3972649957 | 21.978 | 10 Questions & Answers | Early drafts of this FTR were presented to 3GPP CN WG2a and a small number of questions were raised. The questions and answers are recorded here.
Q. In our work, are we considering IN control of RAS signalling or for call control or both?
A. Control of RAS signalling is out of scope.
Q. How does the architecture suppo... |
14ce710049a3c611ebb26f3972649957 | 21.978 | 11 Conclusions & Recommendations | This report has demonstrated how CAMEL can be used to control VoIP services in an all IP network using H.323 or SIP. The analysis has been carried out at a high level sufficient to identify that further detailed design and specification work should lead to a viable solution provided the architectural assumptions used i... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 1 Scope | The present document describes the statistical theory and concepts applied in the conformance test of the user equipment (UE) so as to improve test speed. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 2 References | The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.
• For a specific reference, subsequent revisions do not apply.
• Fo... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 3.1 Definitions | For the purposes of the present document, the following additional terms and definitions apply. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 3.2 Symbols | For the purposes of the present document, the following symbols apply:
[…] Values included in square bracket must be considered for further studies, because it means that a decision about that value was not taken |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 3.3 Abbreviations | For the purposes of the present document, the following abbreviations apply:
BER Bit Error Ratio
BLER Block Error Ratio
DUT Device under Test |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 3.4 Equations | Void. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 4 Introduction | This technical report includes two distinct approaches made to determine total test time optimisation. For ease of understanding they are just referred to here as the first and second approach. Furthermore the two approaches differ a little in that they use slightly different terminology. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 4.1 First approach | The first approach is found in clauses 5 and 6. It reflects TS 34.121 in that the symbols, abbreviations and equations are consistent with TS 34.121. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 4.2 Second approach | The second approach is found in clauses 7 to 11 and does not directly reflect TS 34.121 although it does use the existing theory from TS 34.121. The difference is that it refines the theory and derives further approaches for test time reduction. Some of the symbols, abbreviations and equations have local meaning and th... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.1 Properties of the Poisson Distribution | Description of a statistical experiment by a distribution function and basic characteristics of the distribution. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.2 Equivalence between Poisson Distribution and Chi Square Distribution | Here it is shown, that both distributions are equal. Just the form is different. On the other hand there are two inverse cumulative operations. One of them is useful for our purpose. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.3 Confidence interval | In a single test we apply ns samples and measure ne errors. The result can be member of different distributions each characterized by another parameter NE. We ask for two of them:
1) The worst possible distribution NEhigh , containing our measured ne with [D= 0.0085%] probability in the sense
0.000085= (2)
ni is the i... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.4 Application of the confidence interval to decide the outcome of the test | If we find the entire confidence range, calculated from a single result ne, on the good side of the specified limit we can state: With high probability 1-D, the final NE is better than the limit.
If we find the entire confidence interval, calculated from a single result ne, on the bad side of the specified limit we can... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.6 Test time reduction | Using 5.4 the outcome of the test is connected with two qualities, a good one and a worse and variable one. Introducing the bad DUT factor M, the quality of the test is now uniform and test time is further reduced. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.7 Calculation of the intersection coordinates (maximum number of sample and the normalized test limit) | Calculus for intersection co-ordinates of the early pass and early fail limit. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.8 Wrong decision risk F | 5.1 to 5.6 applies the wrong decision risk for a single test step D. However it is desirable to have a predefined wrong decision risk for the entire test F. The approach to derive F from D this is explained here. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.1 Properties of the Poisson distribution | NOTE: The following text is expressed in terms of BER=bit error ratio. However it can be used for BLER (Block error ratio) as well. Even for 1- Success Ratio, used in RRM delay tests, the theory can be used.
With a finite number of samples (ns), the final bit error ratio BER cannot be determined exactly.
Applying a fi... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.2 Equivalence between Poisson distribution and Chi Square distribution | The experiment, the Poisson distribution is based on, is having observed a certain number of samples (ns), the number of events (ne) is counted to calculate the ratio ne/ns.
The experiment, the Chi Square distribution is based on, is having observed a certain number of events (ne), the number of samples (ns) is counted... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.5 Test time reduction | Whichever ne we propose as a final stop condition e.g. ne =200, the test can leave the area between the early pass and the early fail limit through the open end of the right side of Figure 5-7. This situation needs an arbitrary pass or fail decision. E.g. pass, if the test hits the vertical 200-error line. This situati... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.6 Calculation of the intersection coordinates | initial guess of target number of events
root finds the zero of the function
target number of events
normalized test limit |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 5.7 Wrong decision risk F | Provided a single BER trajectory with final BER on the limit hits the early fail limit. If a fail is decided at this instant of the test, the wrong decision risk is as small as D. For each member of a large population of DUTs a wrong decision can happen, with probability D, accumulating to an amount F > D for the entir... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 6 F to D conversion in BER BLER tests | |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 6.1 Conversion F to D | Annex F.6.1 in TS 34.121 gives a statistical approach for BER BLER tests. It gives early pass and early fail conditions. The formulas for this condition contain the parameter D, the wrong decision probability for a single test step. However it is desirable to have a wrong decision probability for the entire test F. Thi... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 6.2 Introduction | Provided a single BER trajectory with final BER on the limit hits the early fail limit. If a fail is decided at this instant of the test, the wrong decision risk is as small as D. For each member of a large population of DUTs a wrong decision can happen, with probability D, accumulating to an amount F > D for the entir... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 6.3 The simulation procedure | |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 6.3.1 Equal pass and fail probability | A population of DUTs on the limit is established. Quantity 10 000
Preselected BER 1%
An early fail and an early pass limit is established. With D (wrong decision risk) and M (bad DUT factor)
With target ne and test limit as a side result.
D is tuned in the inner loop
M and Fpredefined are varied in the outer loop
Duri... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 6.3.2 Unequal pass and fail probability | For statistical test, frequently repeated, a single false fail can fail the composite test. This can be combated by a decreased false fail risk. This costs test time.
A single false pass does not have this effect on the composite test. Hence it is not necessary to consume increased test time due to decreased false pass... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 6.4 Result of the simulation: M-F array | Table 6‑1: M-F table
7. Definitions, symbols and abbreviations
Definitions, symbols, abbreviations and equations used in the present document are listed in TR 21.905 [5] and TR 25.990 [6]. |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 7.1 Definitions | For the purposes of the present document, the following additional terms and definitions apply.
Wrong Decision Probability: Chance of incorrect judgement based on the given test results.
Significance Level: Chance of incorrect judgement based on the given test results. This term is exchangeable with Wrong Decision Prob... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 7.2 Symbols | For the purposes of the present document, the following symbols apply:
[…] Values included in square bracket must be considered for further studies, because it means that a decision about that value was not taken
C Confidence Coefficient (Confidence Level)
D Individual Significance Level
Dp Individual Significance Leve... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 7.3 Abbreviations | For the purposes of the present document, the following abbreviations apply:
BER Bit Error Ratio
BLER Block Error Ratio
DUT Device under Test
pdf Probability Distribution Function
CDF Cumulative Distribution Function |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 7.4 Equations | Chi-square distribution: of a degree of freedom n
where is gamma function.
Exponential distribution: |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 8 Introduction | BER/BLER measurements are inherently statistical processes, and a statistical approach should be introduced in order to make a BER/BLER test method objective and accurate.
In the GSM standard specifications, this has been achieved by introducing "wrong decision probability (significance level)" and "bad DUT factor." Th... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 9 Statistical characteristics of testing processes | |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 9.1 Exact probability distribution functions | BER/BLER measurements treat phenomena that are characterized as:
1) The experiment consists of a sequence of independent trials.
2) Each trial has two possible outcomes, E (Error) or N (Non Error).
3) The probability of E (r = f(E)) is constant from one trial to another.
That is, the BER/BLER measurement can be reduced... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 9.2 Approximation with continuous distributions | In this section, the notion r for average error ratio is used for average error rate too.
The distributions introduced above are exact, but sometimes they are very time-consuming to simulate the process on a computer. So, it is convenient to use appropriate continuous distribution functions that approximate the discret... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 9.3 Simple test criteria and significance level | For BER/BLER testing, our test can be reduced to a comparison of the measured error rate, R against a threshold. It would follow the procedure like:
if R < Rth-p then the DUT passes
else if R > Rth-f then the DUT fails
else no decision should be made
Where Rth-p and Rth-f are the threshold for pass and fail criteria, a... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10 Early Pass/Fail termination of testing | |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10.1 Framework of test method | If a UE reported 50 block errors for the first 100 frames, we would intuitively know that the UE should be bad (its average BLER should be higher than 0.01), even though the number of the observed errors is much smaller than 200. We are quite sure about that, since it should be very rare for a UE with an average BLER o... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10.2 Early Pass/Fail criteria | As described in the previous section, once the framework of the test procedure is established, a test can be defined by presenting the table of Rth_p, Tdp, and Rth_f. These values will be referred to as "Early Criteria."
The requirements for such criteria should be:
1) F should be 0.2 % for BER/BLER measurement, and 5%... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10.3 Estimating the test time | The final goal of this report is to reduce the total test time, so each set of criteria should be rated by estimating its test time. This task is fairly simple, and can be done using almost the same simulation program used in the previous section. The sample number at which the measurement is terminated is recorded and... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10.4 Minimizing the test time | The criteria set in Section 10.2 ("constant D criteria") were chosen in an arbitrary way, and there is no guarantee that that should give the shortest test time. So, to seek the optimized method, some other criteria that are basically a variation of the "constant D criteria" will be proposed and their test time will be... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10.4.1 Truncation | As a matter of fact, while the simple test is terminated at m = 200 (F = 0.2%), the cross point of the criteria is located at m = 374 for the "constant D criteria." Moreover, only few DUTs survive till later stages. So, it seems to be a good idea truncating the procedure at a little earlier stage.
This means that Rth_p... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10.4.2 Decimation | If the simple tests (comparisons) were done at a smaller number of m, that would result in a smaller F value. In other words, a larger D value can be employed for a certain F value, this can mean a reduced test time since the criteria curve with a higher D value will be located at more left hand side. The real expected... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 10.4.3 Composite criteria | The results of the simulation stated above show that almost all the devices are picked out at relatively early stages, and only few reach later stages. This observation would lead to the idea that the test time could be reduced if stricter criteria at the later stages. Suppose that each threshold in a criterion, Rth-fi... |
4131cd5fefdadf4075e3ec0993ed8fe4 | 34.901 | 11 Accuracy of Continuous Distributions | As stated in clause 9.2, the negative binomial distributions can be approximated by m-Erlang distribution. In this Appendix, we will discuss about how good this approximation is.
For continuous distributions, Equation (1’) and (2’) determine early Pass/Fail thresholds, and these can be transformed to more specific form... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 1 Scope | The present document provides an overview and overall description of the LTE-based 5G terrestrial broadcast comprising:
- a service delivering Free To Air content [2];
- a radio network comprising only MBMS-dedicated cells or FeMBMS/Unicast-mixed cells [3] as transmitters; and
- Receive Only Mode (ROM) devices and UEs ... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 2 References | The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.
- For a specific reference, subsequent revisions do not apply.
- Fo... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 3 Definitions, symbols and abbreviations | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 3.1 Definitions | For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1]. |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 3.2 Symbols | For the purposes of the present document, the following symbols apply:
<symbol> <Explanation> |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].
DRX Discontinuous reception
eMBMS Evolved MBMS
FeMBMS Further enh... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 4 Introduction | <Definition of LTE-based 5G broadcast: Dedicated network, ROM devices>
<Motivation>
<Use cases>
<Quick overview of the Rel.14 and Rel.16 work>
<Network scenarios: LPLT, MPMT, HPHT>
<Receiver types: rooftop, car-mounted,…> |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 4.1 General | The main aspects of the LTE-based 5G terrestrial broadcast described in this specification are:
- radio network comprising only MBMS-dedicated cells or FeMBMS/Unicast-mixed cells [3] as transmitters; and
- ROM devices and UEs supporting FeMBMS [4] as receivers.
NOTE: ROM devices support only ROM service [5]. ROM servic... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 4.2 Use cases and requirements | In Release 14, the use cases and scenarios for eMBMS services based on LTE have been expanded to include terrestrial broadcasting (the feature also referred to as "EnTV"). This included new requirements:
- network dedicated to TV broadcast via eMBMS;
- SFN deployments with ISD significantly larger than a typical ISD as... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 4.3 Enhancements targeting LTE terrestrial broadcast | In Release 14, the following key RAN enhancements were made to the specifications to enable LTE terrestrial broadcast:
- MBMS-dedicated cell [3];
- MBSFN subframes using f = 1.25 kHz [8];
- New information blocks on PBCH and PDSCH of CAS [3], [6]:
- MIB-MBMS is transmitted with a 40ms periodicity and updated every 160... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 5 Architecture | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 5.1 General | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 5.2 Network elements | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 5.3 Interfaces | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 5.4 Protocol stack | The network architecture for LTE-based 5G terrestrial broadcast is described in 3GPP TS 36.300 [3] subclause 15.1.1, with the exception that only:
- ROM reception via MBMS-dedicated cell; or
- MBMS reception via FeMBMS/Unicast-mixed cell
is supported.
RAN interfaces for LTE-based 5G terrestrial broadcast are described... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6 Protocol aspects | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.1 Physical layerFrame structure and numerologies | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.1.1 Frame structure and numerologies | 6.1.2 Channels and signalsOnly frame structure type 1 is supported. All numerologies specified in 3GPP TS 36.211 [8] are supported. For subframes using f other than 0.370 kHz, the frame structure is according to Figure 6.1-1. For transmissions using f = 0.370 kHz, the frame structure is shown in Figure 6.1-2.
Figure ... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.2 MBMS Transmission | MBMS transmission is performed according to 3GPP TS 36.300 [3] subclause 15.3.3.
MCCH configuration and scheduling is performed according to 3GPP TS 36.300 [3] subclause 15.3.5 and 3GPP TS 36.331 [6] subclause 5.8.1. In case of a MBMS-dedicated cell, the MBMS counting configuration is not supported.
MCCH information ac... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.1.3 Physical layer procedures | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.32 MAC Layer | <BCH and MCH aspects only>MAC layer supports only:
- BCH reception for BCCH;
- DL-SCH reception for BCCH; and
- MCH reception for MCCH/MTCH.
BCH reception and DL-SCH reception in the MAC layer use transparent MAC [16], i.e. single MAC PDU per TTI with no headers. HARQ entity uses the dedicated broadcast HARQ process, d... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.43 RLC layer | BCCH uses the RLC-TM mode.
MTCH and MCCH use the RLC-UM mode. RLC operation for MTCH and MCCH is described in 3GPP TS 36.300 [3] subclause 15.3.3. |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.54 RRC layer | RRC layer supports only:
- System information reception (see 3GPP TS 36.331 [6] subclause 5.2) in MBMS-dedicated cell; and
- MBMS reception (see 3GPP TS 36.331 [6] subclause 5.8) in MBMS-dedicated cell and in FeMBMS/Unicast-mixed cell.
For system information reception, the following applies:
- only BCCH-BCH-Message-MBM... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 6.5 Idle mode | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 7 ROM aspects | |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 7.1 General | Since a ROM device does not support uplink transmission or two-way signalling procedures, and does not comprise USIM, it cannot support all the physical layer procedures of the conventional UE. By the same token, only a subset of idle mode procedures and RRM requirements applicable to a conventional UE will be supporte... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 7.2 Physical layer procedures | ROM device only supports the following physical layer procedures specified in 3GPP TS 36.213 [13]:
- Cell search;
- Timing synchronization;
- PDSCH procedures;
- PDCCH assignment procedure;
- PMCH procedures; and
- Assumptions independent on physical channels (clause 12) related to MBMS-dedicated cell. |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 7.3 Idle mode procedures | ROM device only supports the following idle mode procedures specified in 3GPP TS 36.304 [14]:
- Cell selection; and
- Cell reselection.
PLMN prioritization for cell reselection is specified in 3GPP TS 36.304 [14] subclause 5.2.4.1.
NOTE: NAS layer PLMN selection does not apply to ROM device. PLMN selection for ROM dev... |
d832899f12f9cb7303ee0f37d0629dd2 | 36.276 | 7.4 RRM requirements | ROM device only supports the following requirements specified in 3GPP TS 36.133 [15]:
- Cell selection; and
- Cell reselection, except for:
- IRAT reselection;
- paging-related requirements; and
- CSG cell-related requirements.
Appendix Upper layer aspects
Pointers only
<Transparent mode>
<Service and session configura... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 1 Scope | The present document describes new use cases and potential requirements applicable to Public Warning Services for
- UEs with diverse form-factors whose user interface is different from the conventional mobile phones; and
- UEs that are defined by applying 3GPP system to non-ICT industry businesses (e.g. vehicles or mac... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 2 References | The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.
- For a specific reference, subsequent revisions do not apply.
- Fo... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 3 Definitions, symbols and abbreviations | Delete from the above heading those words which are not applicable.
Clause numbering depends on applicability and should be renumbered accordingly. |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 3.1 Definitions | For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].
Definition format (Normal)
<defined term>: <definition>.
example: text use... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 3.2 Symbols | For the purposes of the present document, the following symbols apply:
Symbol format (EW)
<symbol> <Explanation> |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 3.3 Abbreviations | For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply.
An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].
Abbreviation format (EW)
<ACRONYM> <Explanation> |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 4 Overview | This clause provides a high-level overview of the feature that includes:
- description of feature
- benefit(s) the feature provide to the operator, end user, etc
- any other (background) information that helps the reader understand the feature |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5 Use cases for UEs with different or no user interface or with different UE roles | |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.1 Use case: UEs with no user interface over direct network connection | |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.1.1 Description | This use case describes a scenario where UEs with no user interface that are not intended for human type communication are connected to a 3GPP network and receive a PWS message when a disaster occurs. Those UEs with no user interface take pre-defined actions (e.g. shutting down air condition when an earthquake occurs t... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.1.2 Pre-conditions | UEs with no user interface are subscribed to operator’s 3GPP network.
UEs with no user interface are connected to the 3GPP network.
UEs with no user interface monitor the 3GPP network for public warning alarms.
Pre-defined actions or procedures are stored on the UEs with no user interface and can be executed based upon... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.1.3 Service Flows | UEs with no user interface are deployed to manage home appliances such as powering them on and off .
An earthquake suddenly occurs in the area where UEs with no user interface are located and because of the earthquake, a PWS message is broadcast to UEs with no user interface.
UEs with no user interface take pre-defined... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.1.4 Post-conditions | UEs with no user interface take pre-defined actions (e.g. power off) in time that made home appliances less damaged from the earthquake. |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.1.5 Potential Impacts or Interactions with Existing Services/Features | None identified |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.1.6 Potential Requirements | The 3GPP system shall enable the content of a PWS message to include information that can be mapped to an event or a disaster and is identifiable by the UEs with no user interface per event or disaster.
NOTE: The information included in the content of a PWS message may be an identifier of an event or a disaster.
UEs wi... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.2 Use case: Remote UEs with no user interface over indirect network connection | |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.2.1 Description | This use case describes a scenario where remote UEs with no user interface that are not intended for human type communication are connected to 3GPP network via relay UE in coverage of 3GPP network and receive a PWS message via relay UE when a disaster occurs. Those remote UEs with no user interface take pre-defined act... |
2e4def7229d8545d814f4132a20a55ee | 22.969 | 5.2.2 Pre-conditions | A relay UE is connected to the 3GPP network and remote UEs with no user interface are in indirect network connection.
Pre-defined actions or procedures are stored on the remote UEs with no user interface and can be executed based upon the information in the content of the PWS message which is transmitted by the relay U... |
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