JP2003219459A5

JP2003219459A5 -

Info

Publication number: JP2003219459A5
Application number: JP2002011387A
Authority: JP
Filing date: 2002-01-21
Publication date: 2005-08-18
Anticipated expiration: 2022-01-21

Claims

In a radio communication system adopting a time division duplex scheme composed of at least two control stations and at least two mobile stations,
The first mobile station connected to the first control station and communicating with the first control station has a reception timing assigned to itself overlapping with a transmission timing assigned to another mobile station. when it is detected that interference has occurred, and notifies the identification information of the second control station capable of information and receive indicating that the interference occurs in the first control station,
The first control station notifies the second control station of the information indicating that the interference is occurring and the timing information thereof,
The second control station identifies the second mobile station causing the interference based on these pieces of information, and the second mobile station prevents the interference between the first and second mobile stations from occurring. A radio communication system characterized by changing a transmission timing assigned to a station.

2. The first mobile station, when detecting that the interference occurs, also notifies the first control station of timing information indicating a time when the interference occurs. Wireless communication system.

And further comprising at least one control station control station that controls the timing at which the first and second control stations perform transmission and reception,
The first control station that has received the notification from the first mobile station does not directly notify the second control station , but performs the notification via the control station control station. The wireless communication system according to claim 1 or 2.

In a radio communication system adopting a time division duplex scheme composed of at least two control stations and at least two mobile stations,
The first mobile station connected to the first control station and communicating with the first control station has a reception timing assigned to itself overlapping with a transmission timing assigned to another mobile station. When it is detected that interference is occurring, information indicating that the interference is occurring is notified to the first control station ,
The wireless communication system, wherein the first control station changes a reception timing assigned to the first mobile station based on the notified information.

5. The first mobile station, when detecting that the interference has occurred, also notifies the first control station of timing information indicating a time when the interference has occurred. Wireless communication system.

There is a boundary between an uplink section that the control station can allocate to a plurality of mobile stations for uplink within one frame of communication and a downlink section that can be allocated to the plurality of mobile stations for downlink. The wireless communication system according to claim 1, wherein the wireless communication system is variable.

In a radio communication system adopting a time division duplex scheme composed of at least two control stations and at least two mobile stations,
The first mobile station connected to the first control station and communicating with the first control station has a reception timing assigned to itself overlapping with a transmission timing assigned to another mobile station. when it is detected that interference has occurred, and notifies the identification information of the second control station capable of information and receive indicating that the interference occurs in the first control station,
The first control station that has received the notification communicates with the second control station ,
Replace the communication between the first control station and the first mobile station with the communication between the second control station and the second mobile station and the direct communication between the second mobile station and the first mobile station. A wireless communication system.

In a wireless communication system adopting a time division duplex method, a wireless communication terminal as a mobile station that communicates with a control station ,
When communicating with the control station , the reception timing assigned to itself overlaps with the transmission timing assigned to other mobile stations from other control stations, causing interference between mobile stations. A means of detecting what is happening;
When it is detected that the inter the mobile station interference is occurring, and means for notifying the identification information of the information and the receivable said other control station indicating that the interfering occurs in the control station that the connection ,
A wireless communication terminal comprising:

The notifying means notifies the connected control station of timing information indicating the time when the interference occurs together with information indicating that the interference has occurred and identification information of the second control station that can be received. The wireless communication terminal according to claim 8, wherein:

When doing was connected to a control station communication, intermittently wireless communication terminal of claim 8, further comprising a means for monitoring whether transmission signals of the other control station can receive.

In a wireless communication system adopting a time division duplex method, a wireless communication terminal as a mobile station that communicates with a control station ,
When communicating with the control station , the reception timing assigned to itself overlaps with the transmission timing assigned to other mobile stations from other control stations, causing interference between mobile stations. A means of detecting what is happening;
When it is detected that the inter the mobile station interference is occurring, and means for notifying the identification information of the information and the receivable other control station indicating that the interfering occurs in the control station that is the connection,
When communicating with the control station , the transmission timing assigned to itself overlaps with the reception timing assigned to other mobile stations from other control stations, causing interference between mobile stations. When this occurs, communication between the other mobile station and another control station is performed between the own mobile station and the connected control station, and between the own mobile station and the other mobile station. Means to replace with direct communication,
A wireless communication terminal comprising:

A control station in a wireless communication system adopting a time division duplex method,
Means for assigning transmission / reception timing to the mobile station;
From a mobile station connected to the own control station, when the interference between the mobile stations connected is notified of the identification information of the information and the other control station indicating that occurs in the other control station, information and identification information of the timing information and the other control station indicating that the interfering directly or control station the other control station via a control station is caused to transfer movement, are connected to the other control station Means for requesting a change in transmission / reception timing assigned to the station;
Means for changing the transmission / reception timing assigned to the mobile station so as to remove the interference in response to a request for changing the transmission / reception timing assigned to the mobile station connected to the control station ;
A control station comprising: