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Quick paging in telecommunication systems

A communication system, fast technology, applied in the field of paging, can solve problems such as reducing system capacity

Inactive Publication Date: 2011-01-12
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The quick paging mechanism is not specified in the current version of the WiMAX standard, and to date, proposals for quick paging such as IEEE C802.16m07 / 217 either divert system resources from the available resources of the system, thereby reducing system capacity, or occupying time-division Transmit and receive gaps in duplex (TDD) versions of the system, which can cause compatibility issues between different device implementations

Method used

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  • Quick paging in telecommunication systems
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Embodiment Construction

[0030] This description focuses on radio communication systems according to the WiMAX standard, but the skilled person will understand that the present invention generally covers other wireless communication systems.

[0031] Section 8.4.6.1.1 of IEEE 802.16e-2005 defines a DL preamble as three sets of subcarriers modulated by a defined pseudorandom noise (PN) sequence using enhanced binary phase shift keying (BPSK) modulation One, its position can be in Figure 2A , 2B See the format shown. For ease of explanation below, the defined PN sequence is referred to in this application as a "preamble sequence", examples of which are listed in Tables 309, 309a, 309b, and 309c of IEEE 802.16e-2005. Other communication systems can use sequences defined equivalent to those in IEEE 802.16e-2005, and such sequences and sequences that may be defined by future developments of IEEE 802.16e-2005 are also "preamble sequences" for this application. The BS selects a preamble sequence for use ...

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Abstract

In an orthogonal frequency division multiple access communication system, unused frequency resources during a conventional preamble signal are used for a quick paging mechanism. A set of quick paging signals is sent over the unused frequency resources to signal one or more subscriber stations.

Description

[0001] This application claims priority from the filing date of US Provisional Patent Application 61 / 014471, filed December 18, 2007, which is incorporated herein by reference. technical field [0002] The present invention relates to radio communication systems, and more particularly to paging in such systems. Background technique [0003] The Institute of Electrical and Electronics Engineers (IEEE) 802.16 working group on broadband wireless access standards is specifying standards for broadband radio communication systems in wireless metropolitan area networks. The IEEE 802.16 series of specifications is known as the Wireless Metropolitan Area Network (WirelessMAN) standard, and has been dubbed "WiMAX," short for Worldwide Interoperability for Microwave Access, by an industry group called the WiMAX Forum. The mission of the WiMAX Forum is to promote and demonstrate the compatibility and interoperability of products conforming to the IEEE 802.16 specification. [0004] The...

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Application Information

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IPC IPC(8): H04W68/02
CPCH04W68/025
Inventor R·拉梅什K·巴拉钱德兰H·库拉帕蒂
Owner TELEFON AB LM ERICSSON (PUBL)