Method and apparatus for reducing interference in a mobile communications network
First Claim
1. A method for reducing interference between users in a mobile communications network in which uplink transmissions from user equipment to a radio base station can be performed on at least two different carriers, the user equipment supporting dynamic switching between code division multiplexing and time division multiplexing transmission modes and the radio base station being arranged to dynamically set the transmission mode for said user equipment, the method comprising;
- identifying at least a first user equipment as a high data rate user equipment currently requiring high data transmission rate;
dedicating at least one of said at least two carriers to said high data rate user equipment for at least a first period of time, said at least one carrier referred to herein as a clean carrier, andallocating said high data rate user equipment to said clean carrier during said at least first period of time, while ensuring that no user equipment operating in code division multiplexing mode is transmitting on the same carrier as said high data rate user equipment during said period of time.
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Accused Products
Abstract
The invention relates to a method for reducing interference between users in a mobile communications network (1) in which uplink transmissions from user equipment, UE (3), to a radio base station, RBS (5A, 5B), can be performed on at least two different carriers (C1, C2). The UE (3) support dynamic switching between CDM and TDM transmission mode and the RBS (5A, 5B) is arranged to dynamically set the mode of transmission for the UE (3). The method comprises the steps of: —identifying (S200) at least a first UE as a high data rate, HDR, UE currently requiring high data transmission rate; dedicating (S201) at least one of said at least two carriers (C1, C2) to said HDR UE for at least a first period of time (T), said at least one carrier (C1, C2) hereinafter being named clean carrier, and—allocating (S202) said at least first HDR UE to said clean carrier (C1, C2) during said at least first period of time (T). This method ensures that no UE operating in CDM mode is transmitting on the same carrier at the same time as the HDR UE.
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Citations
18 Claims
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1. A method for reducing interference between users in a mobile communications network in which uplink transmissions from user equipment to a radio base station can be performed on at least two different carriers, the user equipment supporting dynamic switching between code division multiplexing and time division multiplexing transmission modes and the radio base station being arranged to dynamically set the transmission mode for said user equipment, the method comprising;
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identifying at least a first user equipment as a high data rate user equipment currently requiring high data transmission rate; dedicating at least one of said at least two carriers to said high data rate user equipment for at least a first period of time, said at least one carrier referred to herein as a clean carrier, and allocating said high data rate user equipment to said clean carrier during said at least first period of time, while ensuring that no user equipment operating in code division multiplexing mode is transmitting on the same carrier as said high data rate user equipment during said period of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio base station in a mobile communications network, the radio base station being arranged to receive uplink transmissions from user equipment on at least two different carriers, the user equipment supporting dynamic switching between code division multiplexing and time division multiplexing transmission modes and the radio base station being arranged to dynamically set the transmission mode for said user equipment;
wherein said radio base station comprises a control unit configured to identify at least a first high data rate user equipment currently requiring high data transmission rate, configured to dedicate at least one of said at least two carriers to said high data rate user equipment for at least a first period of time, said at least one carrier referred to hereinafter as a clean carrier, and configured to allocate said at least first high data rate user equipment to said clean carrier during said at least first period of time, thereby ensuring that no user equipment operating in code division multiplexing mode is transmitting on the same carrier as said high data rate user equipment during said period of time. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
Specification