ETSI TR 125 968-2018 Universal Mobile Telecommunications System (UMTS) 1 28 Mcps TDD Home NodeB Radio Frequency (RF) (V15 0 0 3GPP TR 25 968 version 15 0 0 Release 15).pdf

1、 ETSI TR 125 968 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); 1.28 Mcps TDD Home NodeB Radio Frequency (RF) (3GPP TR 25.968 version 15.0.0 Release 15) TECHNICAL REPORT ETSI ETSI TR 125 968 V15.0.0 (2018-07)13GPP TR 25.968 version 15.0.0 Release 15Reference RTR/TSGR-0425968vf0

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16、sed in direct citation. ETSI ETSI TR 125 968 V15.0.0 (2018-07)33GPP TR 25.968 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions, symbols and abbreviations . 5g33.1 Definitions 5g33.2 Symbo

17、ls 5g33.3 Abbreviations . 5g34 General . 5g34.1 Task description . 6g35 Radio scenarios 6g35.1 Deployment configurations 6g35.2 Interference scenarios . 6g36 HNB class definition 6g36.1 Changes in 3GPP TS 25.105 6g36.1.1 Changes on transmitter characteristics 6g36.1.1.1 Maximum Home NodeB output pow

18、er . 6g36.1.1.2 Frequency Accuracy 7g36.1.1.3 summary of transmitter change . 7g36.1.2 Changes on receiver characteristics 7g36.1.2.1 Sensitivity. 7g36.1.2.2 Dynamic range 7g36.1.2.3 Adjacent channel selectivity (ACS) 8g36.1.2.4 Blocking characteristics 8g36.1.2.5 Intermodulation characteristics . 8

19、g36.1.2.6 summary of receiver change . 8g36.1.3 Changes on demodulation characteristics . 8g36.2 Changes in 3GPP TS 25.142 9g36.2.1 Changes on transmitter characteristics 9g36.2.2 Changes on receiver characteristics 9g36.2.3 Changes on demodulation characteristics . 9g37 Guidance on how to control H

20、NB interference 9g37.1 HNB measurements 9g37.2 Control of output power of Home NodeB 10g37.3 AGC of Home NodeB 12g37.4 HNB Self Configuration . 13g37.4.1 Carrier selection or reselection: 13g37.4.2 Automatic neighbouring cells configuration: 13g37.5 Synchronization 14g37.5.1 Initial synchronization

21、14g37.5.2 Periodic synchronization . 15g38 Interference tests 15g38.1 Adjacent channel deployment 15g38.2 Co-channel deployment 16g3Annex A: Change history 17g3History 18g3ETSI ETSI TR 125 968 V15.0.0 (2018-07)43GPP TR 25.968 version 15.0.0 Release 15Foreword This Technical Report has been produced

22、by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change o

23、f release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance,

24、 i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TR 125 968 V15.0.0 (2018-07)53GPP TR 25.968 version 15.0.0 Release 151 Scope This document is a technical report which was requested

25、 in the Objective of the RAN4 work item description “1.28Mcps TDD Home NodeB RF requirements” 1. The goal of this technical report is to describe the agreed approach towards the RF related issues raised in 1: A) The existing 1.28Mcps BS classes did not fully address the RF requirements of the Home N

26、odeB application. Proposals for changes to radio performance requirement specifications TS 25.105 are therefore provided in this report, together with the proposals for the test specification TS 25.142. B) The report intends to provide guidance to mitigate interference and clarify some interference

27、cases 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,

28、subsequent revisions do not apply. - For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 R4

29、-091435, “WI on 1.28Mcps TDD Home NodeB RF Requirements”, 3GPP RAN WG#46 Sanya China Dec.2009 TD Tech, CMCC, CATT, Picochip Designs, ZTE 2 R4-091232, “25.866 TR on 1.28Mcps TDD Home NodeB ”, 3GPP RAN WG#46 Sanya China Dec.2009 TD Tech 3 Definitions, symbols and abbreviations For the purposes of the

30、present document, the terms and definitions given in TR 21.905 54 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 54. 3.1 Definitions 3.2 Symbols 3.3 Abbreviations DL Downlink, the RF path from BS to UE UL Up

31、link, the RF path from UE to BS 4 General As agreed in the work item proposal 1: An increasing need for 1.28Mcps TDD Home NodeBs is observed to provide attractive services and data rates in home environments in China as a consequence of a large number of TD-SCDMA subscribers within recent years. ETS

32、I ETSI TR 125 968 V15.0.0 (2018-07)63GPP TR 25.968 version 15.0.0 Release 15Whereas UTRAN is not optimally suited for this application, as it was developed and defined under the assumption of coordinated network deployment. Actually home NodeBs are typically associated with uncoordinated and large s

33、cale deployment. Aim of this work item is to amend the 1.28Mcps TDD Home NodeB related RF specifications as suggested in the RAN4 specific part of TR 25.866 to support the Home NodeBs application. No changes to the UE RF specifications are foreseen. 4.1 Task description TR 25.866 suggests that the e

34、xisting 1.28Mcps TDD Base Station classes do not fully address the RF requirements of the Home NodeB application. TR 25.866 summarises the areas where changes to TS 25.105 are expected to transmitter characteristics, receiver characteristics and performance respectively. And guidance to mitigate int

35、erference and interference test are needed to be investigated. Correspondingly, there are 2 objects in this WI, - To update the RF requirement specification TS 25.105 as suggested by TR 25.866. - Guidance to mitigate interference and interference test are need clarification. 5 Radio scenarios 5.1 De

36、ployment configurations 5.2 Interference scenarios 6 HNB class definition 6.1 Changes in 3GPP TS 25.105 This section describes the changes to BS RF requirements specifications TS 25.105 6.1.1 Changes on transmitter characteristics 6.1.1.1 Maximum Home NodeB output power Maximum output power, Pmax, o

37、f the base station is the mean power level per carrier of the base station measured at the antenna connector in a specified reference condition. The period of measurement shall be a transmit timeslot excluding the guard period. Considering interference of Home NodeB, it is suggested that Home NodeB

38、output power should be controlled. According to TR25.866, Considering two common Home NodeB scenarios(Home and small-scale corporation), the following two Max. output power level are recommended in Table 6.1.1.1-1. Table 6.1.1.1-1: Recommended power of Home NodeB Power class Max. output Power Scenar

39、io 1 20 mW (13dBm) Home2 100 mW(20dBm) Small-scale CorporationCorrespondingly, the rated output power, PRAT, of the Home NodeB is suggested to be specified in the TS 25.105. In summary, two types of Home NodeB should be defined in specifications, that is, - type 1: the output power of the Home NodeB

40、 is limited to 20 dBm - type 2: the output power of the Home NodeB is limited to 13 dBm ETSI ETSI TR 125 968 V15.0.0 (2018-07)73GPP TR 25.968 version 15.0.0 Release 15A minimum requirements was also introduced: In normal conditions, the Base station maximum output power shall remain within +2 dB and

41、 -2dB of the manufacturers rated output power. In extreme conditions, the Base station maximum output power shall remain within +2.5 dB and -2.5dB of the manufacturers rated output power. In certain regions, the minimum requirement for normal conditions may apply also for some conditions outside the

42、 range of conditions defined as normal. 6.1.1.2 Frequency Accuracy Considering Home NodeBs are usually deployed at home and office, it is most likely that the serving UEs are in slow mobility profile and a consensus was reached that the Home NodeB is expected to support UE speeds up to 30km/h speed

43、during the 1.28Mcps TDD Home NodeB SI. According to 25.866 simulation results, the Home NodeB modulated carrier frequency can be relaxed to 0.25 PPM. 6.1.1.3 summary of transmitter change The changes on transmitter characteristics in TS 25.105 are summarised in the following table. Table 6.1.1.3-1:

44、Changes on transmitter characteristics to TS 25.105 Section Requirement Discussion / Required Changes 4.2 Base station classes Add a new BS class Home NodeB. Home NodeBs are characterized by requirements derived from Femto Cell scenarios. 6.2.1 Base station maximum output power Two types of Home Nod

45、eB should be defined in specifications, that is, type 1: the output power of the HNB is limited to 20 dBm type 2: the output power of the HNB is limited to 13 dBm 6.3 Frequency error Added frequency error requirement for Home BS It was agreed on a minimum frequency error of 0.25ppm 6.1.2 Changes on

46、receiver characteristics 6.1.2.1 Sensitivity According to 3GPP TR25.866, using the reference measurement channel specified in 25.105 Annex A, the reference sensitivity level and performance of the BS shall be as specified in Table 6.1.2.1-1. Table 6.1.2.1-1: 1.28Mcps TDD Home NodeB reference sensiti

47、vity level BS Class Reference measurement channel data rate BS reference sensitivity level BER 1.28Mcps TDD Home NodeB 12.2 kbps -101 dBm BER shall not exceed 0.001 6.1.2.2 Dynamic range Receiver dynamic range is the receiver ability to handle a rise of interference in the reception frequency channe

48、l. The receiver shall fulfil a specified BER requirement for a specified sensitivity degradation of the wanted signal in the presence of an interfering AWGN signal in the same reception frequency channel. Considering impact of co-channel uplink interference on the Home NodeB, it is possible that Hom

49、e NodeB receiver will be exposed to strong interference signals from un-coordinated UEs. It was shown that the FDD Home NodeB dynamic range requirement needs to be extended by 20dB to protect the HNB from the strong interference signal of an un-coordinated UE. This conclusion can be reused in 1.28Mcps TDD Home NodeB. The BER shall not exceed 0.001 for the parameters specified in Table 6.1.2.2-1. ETSI ETSI TR 125 968 V15.0.0 (2018-07)83GPP TR 25.968 version 15.0.0 Release 15Table 6.1.2.2-1: Dynamic Range of 1.28Mcps TDD Home NodeB Receiver Parameter Level Un