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Method and device for setting channel expected received power and communication systems

A technology of expected receiving power and communication system, which is applied in the field of channel expected receiving power setting and communication system, which can solve problems such as terminal access failure and failure to receive terminals, and achieve the effect of avoiding terminal access failure

Inactive Publication Date: 2011-07-06
CHINA MOBILE GROUP DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for setting channel expected receiving power, which is used to solve the problem in the prior art that the base station may not be able to receive the information sent by the terminal through the PRACH, resulting in terminal access failure

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  • Method and device for setting channel expected received power and communication systems
  • Method and device for setting channel expected received power and communication systems
  • Method and device for setting channel expected received power and communication systems

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Embodiment Construction

[0016] The main realization principles, specific implementation modes and corresponding beneficial effects of the technical solutions of the embodiments of the present invention will be described in detail below in conjunction with each accompanying drawing.

[0017] Such as figure 1 As shown, it is a schematic flow chart of the method for setting the expected received power of PRACH in the embodiment of the present invention, and its specific processing process is as follows:

[0018] Step 11. When the specified time point is reached, obtain the interference value caused by the downlink signal of the first communication system to the uplink signal received by the base station in the second communication system at the current time point, where the first communication system can be but not limited to It is a PHS system, and the second communication system may be, but not limited to, a TD-SCDMA system;

[0019] In the embodiment of the present invention, the interference value ...

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Abstract

The invention discloses a method and device for setting channel expected received power and communication systems. The method comprises the following steps: when a specified time point is reached, firstly obtaining an interference value caused by a downlink signal of a first communication system on an uplink signal received by a base station in a second communication system at the current time point; and then setting the PRACH (physical random access channel) expected received power to be sent by the base station to a terminal requesting to access the base station according to the obtained interference value. By adopting the technical scheme of the invention, the problem that the base station possibly can not receive the information sent by the terminal through the PRACH and consequently the terminal access fails in the prior art is solved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for setting channel expected receiving power, and a communication system. Background technique [0002] In a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, Time Division-Synchronous Code Division Multiple Access) system, if a terminal needs to access a base station, the terminal first randomly selects an uplink synchronization code, and then passes the selected uplink synchronization code through the uplink The pilot channel (UpPCH, Up PilotChannel) is sent to the base station, the base station detects the received uplink synchronization code, determines the expected receiving power and timing adjustment value of the base station when the terminal sends uplink next time, and then sends the expected receiving power to the The terminal sends the timing adjustment value to the terminal through the fast access indication channel ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/12H04W52/16H04W52/24
Inventor 徐德平
Owner CHINA MOBILE GROUP DESIGN INST
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