1、STANDARD L I 1 i STD-EIA TIA-bbl-ENGL 1777 3234b00 0581BOL 375 ANSV TIA/ EIA-6 63-19 97 Approved: February 6, 1997 Personal Communications Interface hteroperability Standard (PCI) TIA/EIA-663 , MIL 1997 I I I TELECOMMUNICATIONS INDUSTRY ASSOCIATION STDOEIA TIA-bb3-ENGL 1997 323LIbO0 0581802 201 I NO
2、TICE MIA Engineering Standards and P&;:ations are designed to serve the public interest through elinilliating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay
3、 the proper product for his particular need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of TMIA and I -there exists a defined degree of interworking between the portable and fixed devices following this specification, allowing users in poss
4、ession of compliant portable devices, to make and receive telephone calls from compliant fixed devices. To these ends, this specification specifies the essential requirements for: - monitoring, accessing and relinquishing an RF channel; - the means by which the specified data structures are modulate
5、d onto the channel; - the means by which the two ends of a radio link become and remain synchronized; - the provision of signaling or marker channels; - generation and interpretation of digital control; and - generation and interpretation of digital speech and data. I 1.2 Basis This specification ha
6、s as its basis the common air interface for equipment standardized by ETSI (LETS 300 131). The document LETS 300 131, 31 January 1994 is reference 26 for this specification. Subsection 1.4 briefly describes the major differences between operation according to this specification and operation accordi
7、ng to LETS 300 131. Because of the additional constraints required to follow the FCC Part 15 subpart D “etiquette“ for sharing the spectrum in the unlicensed band, compatibility or interoperability is not maintained between equipment operating according to this specification and equipment following
8、LETS 300 131. FCC Part 15 is reference 271 for this specification. This air interface specification is divided into sections as follows : 1 Previous page is blank I Section 4 provides the details of the physical radio interface and channel management strategy. Section 5 provides the communications L
9、ayer 1. Section 6 provides the Layer 2. Section 7 provides for communications Layer 3. Section 8 provides the speech coding and transmission specifications. - 1.3 Mandatory and Optional Sections Throughout this document, the word I “shall“ is used to indicate a mandatory requirement to comply with t
10、he PCI Standard, “should“ to indicate a strong recommendation and “may“ to indicate a permission. This document includes two types of specifications: those that are mandatory in all units to ensure interoperability and compliance with the PCI Standard, and those that are optional in a unit, but shal
11、l be implemented in the specified manner if provided. For all equipment complying with this specification, all of Section 4, Section 5 and Section 6 are mandatory unless otherwise stated. The RF specifications of this specification are normative unless otherwise stated. 1.4 Operation Relative to I-E
12、TS 300 131 (Informative); This informative subsection provides an outline of the major elements of operation which differentiate this specification from I-ETS 300 131. The devices operating in the U-PCS band are required to comply with the FCC rules Part 15 subpart D for unlicensed PCS devices and o
13、ther FCC rules as applicable. The test and certification process for devices operating in the U-PCS band also mandates compliance with the FCC process concerning Part 15 device certification and registration. The testing procedures will include those of ANSI C63.4 and its subsequent further revision
14、s to include compliance with the channel access “etiquefte“ for the unlicensed PCS band included in Part 15. I 1.4.1 General There is a group of several features, the major ones being: I - A number of changes to the low (physical) levels of the I-ETS 300 131 protocol to facilitate the sharing of the
15、 unlicensed spectrum with other unlike and uncooperating radio systems. These include items to observe the “spectrum etiquette“ included in FCC Part 15 subpart D, and items to maintain satisfactory system operation when interference in the radio spectrum is encountered from foreign systems. - The sp
16、ectrum assignment is larger for the U-PCS band (than in I-ETS 300 131) and all equipment is capable of operating over a frequency range of 99 channels. The expanded channel range introduces a number of operational and protocol changes to accommodate the larger number. 2 TINEIA 663 - Protocols which
17、use marker channels (MCs) to track the Cordless Portable Part (CPP) location1 and to initiate call Set-up. These marker channels are also used to prevent the operation of the portable units outside their coordinated usage area. Operation of equipment in the unlicensed PCS band, before it is cleared
18、of existing users, is subject to coordination with UTAM (Unlicensed PCS ad-hoc committee for 2 GHz microwave Transition and Management) Inc. - A protocol for hand-off using synchronous MUX2 format rather than MUX32. All call Set-up is handled in MUX2 mode using the marker channels. Equipment also su
19、pports a number of other features described in Subsection 1.4.7. These features are outlined in more detail in the informative Subsections 1.4.2 through 1.4.7. 1.4.2 “Spectrum Etiquette“ The principle changes added to adhere with a spectrum etiquette (outlined in the FCC rules Part 15 subpart D) and
20、 to facilitate sharing of the spectrum among different systems are the requirement to always listen during the intended transmit interval before transmitting to be sure the channel is free; not transmitting on a channel if foreign signals are detected above a threshold; and not beginning arty transm
21、ission by a portable device unless CFP transmissions can be received. In addition there are a number of RF parameter requirements dealing with powerlevels and allowed levels of in-band and out-of- band emissions. 1.4.3 Marker Channels The radio equipment operated in the U-PCS band is forbidden from
22、causing interference to equipment operating as part of the fixed radio ervice. The fixed radio services may be operating as receivers or transmitters in the same portion of the spectrum as the PCS equipment. To assure there is no interference between the two services, the PCS equipment is only to be
23、 operated in (geographic) areas where its operation is known not to cause interference to the fixed service. To assure this, the CTA are only to be sold and installed in acceptable locations as certified by UTAM Inc. The CFP (or group of CFPs) will at all times when it is capable of providing servic
24、e, maintain a marker channel stream to indicate to nearby mobile devices (CPPs) that they are allowed to operate in the area. The CPP is forbidden from operating its transmitter unless it can properly receive and decode a marker channel provided by the CFP or the CPP is paged on a traffic channel. M
25、arker channels operate using the MUX2 transmissions. The marker channels are intermixed with the traffic channels and may change their channel assignments according to local traffic and interference conditions. 1.4.4 Call Set-up Protocols Before using a channel, each device (both CFP and CPP) monito
26、rs the channel during at least the intended transmit intervals for a minimum of 10 milliseconds. The channel may be used only if the monitored level is beiow the applicable threshold. If the level is above the threshold, then another channel may be selected and monitored or the call may be blocked.
27、The need to coordinate usage of the spectrum with existing users necessitates the use of marker channels for all call set-up activity. The CFP maintains its marker channel at all times when it is capable of handling calls, and the CPP is expected to both register with the strongest marker channel to
28、 facilitate location tracking, and to regularly monitor the Location in this context refers to the ability of the Common Control Fixed Part (CCFP) to determine which marker channel the CPP has tuned to and is thus capable of receiving and transmitting signaling information over. This is to comply wi
29、th the FCC Rules Part 15.307. 3See FCC Rules Part 15 D. 3 STD-EIA TIA-bb3-ENGL I TINEIA 663 c marker channel for network originated calls. Only the CFP selects traffic channels. The CPP is restricted to responding on the active marker channels or the traffic channels on which it is polled. For CFP-o
30、riginated calls, the CFP sends a paging signal on the marker channel stream. This may possibly be from more than one active marker channel. In addition the CPP will be polled on the selected traffic channel. The CPP may respond to the page on its selected marker channel and establishes the link on t
31、he traffic channel. For CPP-originated calls, the CPP sends a call request message over its selected marker channel to alert the CFP. The CFP responds to this on the marker channel and will begin polling on its selected traffic channel. The CPP will establish the link on the traffic channel. This me
32、thod allows the CFP to set up the call faster and does not use MUX3 operation (which would violate the requirements for coordinatable ope rat ion4). 1.4.5 Local Registration For location tracking, the concept of making the CPP responsible for local registration is emphasized. Location registration v
33、ia marker channels is a mandatory automatic background task for each CPP. -1.4.6 Hand-Over An additional mode of hand-over is provided that is synchronous such that the CFP transmits first in MUX2. If a synchronous hand-over fails, the CPP tries to re-establish the call using a procedure similar to
34、initial call Set-up. 1.4.7 Other Elements of Operation CPPs and CFPs support MUXl.4 (hereafter referred to as MUX1) and MUX2 only. MUX3 cannot be used. CPPs have the ability to support a change of LID during link re-establishment. CPPs always preset the ZAP field to F hex upon successful manual entr
35、y of registration data. CPPs always send KP, FA and TERM-CAP Layer 3 messages in acknowledged packets. CFPs always send BAS-CAP Layer 3 messages in acknowledged packets. CPPs have “soft“ power-off capability, so as to be able to send the Layer 3 CLEAR message when powered down during a call, or to l
36、ocally de-register when powered down when idle. 1.5 Organization The specification is organized into the following parts : Part 1: Introduction and Definitions (Sections 1-3): These parts provide background information on the standard, references and definition of terms. Part 2: The Radio Interface
37、(Section 4): This part covers the minimum radio frequency performance requirements including channel frequencies, modulation and channel selection. Part 3: Communication Layers One and Two (Sections 5 and 6): There are three layers of requirements for the radio units. The first two layers are detail
38、ed in this part. See FCC Rules Part 15.307 4 TIMIA 663 Layer 1 covers aspects such as time-division duplexing, data multiplexing, link initiation and handshaking. This layer allows systems to obtain mutual synchronization over a digital synchronization channel and provides bi-directional data channe
39、ls for digital data and digital speech data. Layer 2 covers the channel protocols, message formats, error detection, error correction and message acknowledgment. This layer allows systems to communicate over an established link using data and channels which are established and maintained free from i
40、nterference where possible. Part 4: Layer 3 (Section 7): This pari defines the structure of and attaches meanings to messages. Part of the message space is open in order to accommodate future expansion of services and facilities. Part 5: Speech coding and transmission (Section 8): This pari specifie
41、s the requirements for the digital coding and transmission of analog speech information. Part 6: Parametric and system tests : This pari describes some of the tests required to verify that a system conforms to this specification and is documented in a separate Annex 29.5 Note: Testing for compliance
42、 with FCC Pari 15 D is beyond the scope of this specification. 5 TINEIA 663 2 Normative References This ANSITTINEIA Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publication
43、s are listed hereafter. For dated references, subsequent amendments to, or revisions of, any of these publications apply to this Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.6 l FCC Patt 68: “Connecti
44、on of Terminal Equipment to the Telephone Network“. 2 which are based on the 2048 kBit/s hierarchy“ ITU-T Recommendation G.823 (1988): “The control of jitter and wander within digital networks 3 interface, data-link layer specification“ ITU-T Recommendations Q.921 (1 988): “Integrated Services Digit
45、al Network (ISDN) user-network 4 interface Layer 3 specification for basic call control“ ITU-T Recommendation Q.931 (1 988): “Integrated Services Digital Network (ISDN) user-network 5 6 (ADPCM)“ 7 National ISDN-1, February 1991. ITU-T Recommendation T.50 (1 984): “International Alphabet No.5“ ITU-T
46、Recommendation G.726 (1 990): “32 kBit/s Adaptive Differential Pulse Code Modulation 8 listener echo in international connections“ ITU-T Recommendation G.122 (1988): “Influence of national systems on stability, talker echo, and 9 l O noise on hypothetical reference circuits for telephony“ l 1 3 and
47、decoding sides of PCM channels applicable to 4-wire voice frequency interfaces“ ITU-T Recommendation G.132 (1 988): “Attenuation Distortion“ ITU-T Recommendation G.223 (1964 with amendments): “Assumptions for the calculation of ITU-T Recommendation G.714 (1 988): “Separate performance characteristic
48、s for the encoding 12 ITU-T Recommendation P.51 (1 993): “Artificial mouth“ 13 ITU-T Recommendation P.64 (1 993): “Determination of sensitivity/frequency characteristics of local telephone systems to permit calculation of their loudness ratings“ 141 ITU-T Recommendation P.79 (1 988): “Calculation of
49、 loudness ratings“ 151 frequencies“ 161 ITU-T Recommendation G.711 (1 972 with amendments): “Pulse Code Modulation (PCM) of voice ITU-T Recommendation P.76 (1 988): “Determination of loudness ratings; fundamental principles“ 17 18 ITU-T Recommendation G.113 (1 988): “Transmission Impairments“ IS0 3 - 1973: “Preferred numbers - Series of preferred numbers“ Note that the order of the existing references from I-ETS 300-1 31 has been maintained and does not necessarily reflect the importance of the references. New references pertinent to PCI have be
