Method, device, and system for sending and receiving control channel information
AssigneeHuawei Technologies Co., Ltd.
InventorsChongfa Wang, Ling Qiu, Zongjie Wang
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Abstract
The present invention discloses a method, device, and system for sending and receiving control channel information. When a base station schedules a first relay, the base station selects a second relay according to an optimal precoding code book selected by the first relay. An optimal precoding code book selected by the second relay is orthogonal to the optimal precoding code book selected by the first relay. Control channel information of the first relay and control channel information of the second relay his encapsulated into a high speed downlink shared control channel HS-SCCH, and scrambling the HS-SCCH. The scrambled HS-SCCH is sent to the first relay and the second relay.
Claims20
A method for sending control channel information, the method comprising:
- selecting, by a base station, a second relay according to an optimal precoding code book selected by a first relay when the base station schedules the first relay, wherein an optimal precoding code book selected by the second relay is orthogonal to the optimal precoding code book selected by the first relay;
- encapsulating control channel information of the first relay and control channel information of the second relay into a high speed downlink shared control channel (HS-SCCH);
- scrambling the HS-SCCH;
- and
- sending the scrambled HS-SCCH to the first relay and the second relay.
A method for receiving control channel information, the method comprising:
- receiving, by a first relay, a high speed downlink shared control channel (HS-SCCH) sent by a base station, wherein control channel information of the first relay and control channel information of a second relay are encapsulated in the HS-SCCH and an optimal precoding code book selected by the second relay is orthogonal to an optimal precoding code book selected by the first relay;
- and
- descrambling, by the first relay, the HS-SCCH to obtain the control channel information of the first relay.
A base station, comprising:
- a selecting module, configured to, when the base station schedules a first relay, select a second relay according to an optimal precoding code book selected by the first relay, wherein an optimal precoding code book selected by the second relay is orthogonal to the optimal precoding code book selected by the first relay;
- an encapsulating module, configured to encapsulate control channel information of the first relay and control channel information of the second relay into a high speed downlink shared control channel (HS-SCCH) and to scramble the HS-SCCH;
- and
- a sending module, configured to send the scrambled HS-SCCH to the first relay and the second relay.
A first relay, comprising:
- a receiving module, configured to receive a high speed downlink shared control channel (HS-SCCH) sent by a base station, wherein control channel information of the first relay and control channel information of a second relay are encapsulated in the HS-SCCH and wherein an optimal precoding code book selected by the second relay is orthogonal to an optimal precoding code book selected by the first relay;
- and
- a descrambling module, configured to descramble the HS-SCCH to obtain the control channel information of the first relay.
A system for sending and receiving control channel information, wherein the system comprises:
- a first relay;
- and
- a base station comprising:
- a selecting module, configured to, when the base station schedules the first relay, select a second relay according to an optimal precoding code book selected by the first relay, wherein an optimal precoding code book selected by the second relay is orthogonal to the optimal precoding code book selected by the first relay;
- an encapsulating module, configured to encapsulate control channel information of the first relay and control channel information of the second relay into a high speed downlink shared control channel (HS-SCCH) and to scramble the HS-SCCH;
- and
- a sending module, configured to send the scrambled HS-SCCH to the first relay and the second relay.
Dependencies are inferred from the claim text.