Method for expanding channel capacity in mobile communications system

A technology of mobile communication system and base station system, applied in the field of expanding carrier capacity

Inactive Publication Date: 2004-02-18
NORTEL NETWORKS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The limited spectrum allocated to packet-based services also limits the capacity available to users

Method used

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  • Method for expanding channel capacity in mobile communications system
  • Method for expanding channel capacity in mobile communications system
  • Method for expanding channel capacity in mobile communications system

Examples

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Embodiment Construction

[0030] In the following description numerous details are set forth in order to facilitate an understanding of the invention. However, it will be understood by those skilled in the art that the invention may be practiced without these details and that various changes or modifications to the described embodiments are possible. Although in this description each cell uses a certain number of carriers and sectors, in other embodiments each cell may use a different number of carriers and sectors (or non-sectorized cells).

[0031] Referring to FIG. 1A, mobile communication system 10, which may be a cellular or personal communication services (PCS) system, includes a plurality of cells 14, each cell 14 including a base station 18. Base stations 18 are capable of communicating with mobile devices 20 (eg, mobile telephones, mobile computers, or other types of mobile devices) via radio frequency (RF) wireless links. Base stations 18 are controlled by a Mobile Switching Center (MSC) 12 ...

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Abstract

A mobile communications system includes a plurality of cell segments each allocated primary carriers to carry circuit-switched traffic and packet data carriers for carrying packet-switched traffic. The packet data carriers include two sets of carriers, a main set of carriers (F1, F2, or F3) and a secondary set of carriers (F4, F5, and F6). The main packet data carriers (F1, F2, and F3) are allocated to corresponding cell segments. The secondary carriers (F4, F5, and F6) are allocated to high capacity segments, which may be segments having high bursty traffic or segments in which a hierarchical cell structure is implemented. For high bursty cell segments, the main carriers (F1, F2, and F3) are used to carry control signaling for performing selection or reselection. However, in such high bursty cell segments, the secondary carriers (F4, F5, and F6) are not used for performing cell segment selection or reselection.

Description

technical field [0001] The invention relates to expanding carrier capacity in a mobile communication system. Background technique [0002] A mobile communication system such as a cellular or Personal Communications Service (PCS) system consists of many cells. Each cell provides a radio center in which a mobile device establishes a call with another mobile device or a wireline device connected to the Public Switched Telephone Network (PSTN). Each cell contains a radio base station and each base station is connected to a mobile switching center which controls call processing between mobile devices or between mobile devices and PSTN equipment. [0003] Starting with the original Advanced Mobile Phone System (AMPS) standard, additional wireless protocols have been developed and implemented. One such protocol is the Time Division Multiple Access (TDMA) protocol, originally implemented as the IS-54 standard (EIA / TIA / IS-54) and later as the TIA / EIA-136 protocol of the Telecommuni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/06H04W16/12H04W16/32H04W48/12H04W72/04
CPCH04W16/12H04W16/32H04W72/0446H04W48/12H04W28/16H04W72/0453H04W16/06
Inventor P·A·布拉尼E·N·约翰森
Owner NORTEL NETWORKS LTD
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