Personal Communications Service Overview and Details

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Personal Communications Service is a type of service that allows individuals to communicate with others through various means. This service can be accessed through mobile phones, landlines, or even online platforms.

Mobile phones are a common way to access Personal Communications Service, with over 5.2 billion mobile phone users worldwide. This number is expected to continue growing as more people gain access to mobile technology.

Personal Communications Service can also be accessed through landlines, which are still widely used in many parts of the world. In fact, there were over 1.3 billion landline subscriptions worldwide in 2020.

Regulations and Limitations

The field strength limits for the Personal Communications Service (PCS) are quite specific. The predicted or measured median field strength at any location on the border of the PCS service area shall not exceed 47 dBuV/m.

PCS equipment must adhere to strict emission limitations. The rules in this section govern the spectral characteristics of emissions in the Broadband Personal Communications Service.

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Out of band emissions are a major concern for PCS equipment. The power of any emission outside of the authorized operating frequency ranges must be attenuated below the transmitting power (P) by a factor of at least 43 + 10 log(P) dB.

Compliance with these rules is based on the use of measurement instrumentation. Measurement instrumentation employing a resolution bandwidth of 1 MHz or greater is required for out of band emission measurements.

A narrower resolution bandwidth is permitted to improve measurement accuracy. However, the measured power must be integrated over the full required measurement bandwidth.

The emission bandwidth is defined as the width of the signal between two points. These points are one below the carrier center frequency and one above the carrier center frequency, outside of which all emissions are attenuated at least 26 dB below the transmitter power.

PCS licensees may establish an alternative out of band emission limit. This can be done pursuant to a private contractual arrangement of all affected licensees and applicants.

Interference caused by out of band emissions is a serious issue. If any emission from a transmitter operating in this service results in interference to users of another radio service, the FCC may require a greater attenuation of that emission than specified.

Frequencies and Bidding

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Frequencies for narrowband PCS are available in various configurations, including 50 kHz channels paired with 50 kHz channels, 50 kHz channels paired with 12.5 kHz channels, and unpaired channels.

Eighteen frequencies are available for nationwide assignment, including channels paired with 50 kHz channels like Channel 2: 940.05-940.10 and 901.05-901.10 MHz. Three 50 kHz channels paired with 12.5 kHz channels are also available, such as Channel 6: 930.40-930.45 and 901.7500-901.7625 MHz.

Small businesses and very small businesses may use bidding credits to participate in the competitive bidding process for narrowband PCS service licenses. Winning bidders that qualify as small businesses or very small businesses may use the bidding credits specified in § 1.2110(f)(2)(iii) and § 1.2110(f)(2)(ii) of this chapter, respectively.

Co-Channel Separation Criteria

Co-channel separation criteria are an essential aspect of frequencies and bidding. The minimum co-channel separation distance between base stations in different service areas is 113 kilometers.

This distance is a crucial factor in determining the feasibility of co-channel reuse in a given area. A co-channel separation distance is not required for the base stations of the same licensee.

In cases where affected parties have agreed to other co-channel separation distances, this minimum requirement does not apply. This flexibility can be beneficial for licensees who have existing agreements in place.

For another approach, see: Communication Channel

Frequencies

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Frequencies are a crucial aspect of the bidding process, and understanding them is essential for success.

There are 18 frequencies available for narrowband PCS on a nationwide basis. This includes 7 channels paired with 50 kHz channels, 3 channels paired with 12.5 kHz channels, 2 unpaired 50 kHz channels, 1 unpaired 100 kHz channel, and 2 channels paired with 50 kHz channels.

The frequencies available on a nationwide basis range from 901.05-902.00 MHz to 941.00-941.00 MHz, with specific channels having specific frequency ranges.

Some frequencies are available for assignment on a regional basis, with 5 frequencies available for this purpose. Channel 12 is one such frequency, with a range of 940.25-940.30 MHz paired with 901.25-901.30 MHz.

Additionally, there are 4 channels paired with 12.5 kHz channels available on a regional basis, with frequencies ranging from 930.55-930.60 MHz to 901.8125-901.8250 MHz.

Frequencies are also available on a Metropolitan Transportation Authority (MTA) basis, with 7 frequencies available for this purpose. This includes 3 unpaired 50 kHz channels, 1 channel paired with 50 kHz channel, 1 channel paired with 100 kHz channel, 1 channel paired with 150 kHz channel, and 1 channel paired with 12.5 kHz channel.

The frequencies available on an MTA basis range from 901.35-901.40 MHz to 941.00-941.00 MHz, with specific channels having specific frequency ranges.

Broadband PCS via Competitive Bidding

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Narrowband PCS service licenses are subject to competitive bidding, following the general procedures outlined in part 1, subpart Q of this chapter.

To qualify for a bidding credit, a winning bidder must be a small business or a consortium of small businesses, established after August 7, 2000. A very small business or a consortium of very small businesses may also use a bidding credit, specified in the rules.

Small businesses that win regional licenses before August 7, 2000, can pay their winning bids in installments over the term of the license. This is made possible by the terms set forth in the rules.

General Information

Personal Communications Service is a type of wireless communication that allows individuals to make and receive calls, send texts, and access the internet using a mobile device.

The first mobile phone call was made in 1973 by Martin Cooper, an engineer at Motorola, marking the beginning of the PCS era.

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Mobile devices have become an essential part of our daily lives, with the average person checking their phone over 150 times per day.

PCS technology has evolved significantly over the years, with the first digital PCS system launched in 1991.

The widespread adoption of smartphones has led to a significant increase in mobile data usage, with the average person using over 2 GB of data per month.

Frequently Asked Questions

What is an example of a personal communication service?

PCS (Personal Communications Services) is an all-in-one wireless service that combines phone, paging, messaging, and data capabilities. It's a next-generation wireless technology that offers advanced features and services beyond traditional cellular phone systems.

Rosemary Boyer

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Rosemary Boyer is a skilled writer with a passion for crafting engaging and informative content. With a focus on technical and educational topics, she has established herself as a reliable voice in the industry. Her writing has been featured in a variety of publications, covering subjects such as CSS Precedence, where she breaks down complex concepts into clear and concise language.

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