Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and apparatus for soft switch communications in a communication system operating according to multiple communication standards

A communication standard and communication system technology, applied in the field of communication and communication systems, can solve impossible or difficult problems

Inactive Publication Date: 2005-06-22
GOOGLE TECHNOLOGY HOLDINGS LLC
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when MS 104 is communicating with cell site 101 via BTS 131 operating in accordance with the IS-95B standard, it is not possible or difficult to perform a soft handover operation on the signal transmitted by cell site 101 through BTS 132 operating in accordance with the IS-95C standard

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for soft switch communications in a communication system operating according to multiple communication standards
  • Method and apparatus for soft switch communications in a communication system operating according to multiple communication standards
  • Method and apparatus for soft switch communications in a communication system operating according to multiple communication standards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Communication systems operating in accordance with the IS-95C standard include a Broadcast Common Control Channel (BCCH). Mobile stations operating in dual mode can detect the presence of BCCH. Mobile stations capable of operating in dual mode can clearly benefit from aspects of the present invention that allow calls from different cell sites or sectors to be transmitted in accordance with at least two different communication standard types, such as IS-95B and IS-95C Do a soft merge.

[0024] Referring to FIG. 2, an exemplary communication system 200 is illustrated in accordance with an embodiment of the present invention. Communication system 200 includes a plurality of cell sites 201-203 (three shown). Each cell site 201-203 is served by one or several base transceiver stations BTS 231, 232, 235 and 236, (i.e. cell site 201 is served by BTS 231 and 232, cell site 202 is served by BTS 236, and cell site 203 is served by BTS 235), and provides communication services ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A soft handoff operation is provided for a first signal transmitted according to a first communication standard (IS-95B) and a second signal transmitted according to a second communication standard (IS-95C). A mobile station (MS) (204) receives the first signal, detects the pilot signal, measures the strength of the pilot signal, and transmits a pilot strength measurement message. When the MS cannot receive the handover direction message after transmitting the pilot strength message, the MS searches to detect the presence of a broadcast control channel (BCCH) on an IS-95C type cell site (202), and measures the carrier-to-interference ratio of the BCCH. The MS compares the carrier-to-interference ratio with a threshold, and when the ratio is higher than the threshold, it starts a second communication according to the IS-95C standard, thus starting a soft handover operation and allowing the cell sites (202, 203) to comply with the IS-95B and IS-95C standards respectively. 95C standard transmission information.

Description

technical field [0001] The present invention relates to the field of communication and communication systems, and more particularly to Code Division Multiple Access (CDMA) communication systems. Background technique [0002] Several commercially available CDMA communication systems operate according to one or several communication standards, such as the IS-95B and IS-95C standards. Such systems evolve from one generation to another. For example, the IS-95B standard follows the previously known IS-95A standard to provide additional capacity while improving performance in many different ways in CDMA communication systems. The current IS-95C standard also known as IS3000 has been introduced to meet higher requirements for capacity and performance. This standard describes the details of IS-95A, IS-95B, IS-95C (IS3000) systems, and the text of each standard can be obtained by contacting the Telecommunications Industry Association (Telecommunications Industry Association) in Was...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/20H04W36/14H04W36/18
CPCH04W36/18H04W36/0079H04W36/144H04W36/304
Inventor 雅洛乌尔·卢阿伊基思A·坦布鲁克陈江南罗恩·罗特斯坦尤达·耶胡达·卢斯
Owner GOOGLE TECHNOLOGY HOLDINGS LLC