Control channel transmission method and equipment
View Patent ↗A control channel transmission method and a piece of equipment, where the method includes configuring, by a communications system, at least two control channels for a user equipment, where at least one of the control channels is a cell-specific control channel and at least one of the control channels is a user equipment-specific control channel; using, by the communications system, the cell-specific control channel and/or user equipment-specific control channel to send information about control over the user equipment. In the embodiments of the present invention, a communications system configures at least two control channels for a user equipment (UE). The communications system may use, in a process of reconfiguring a control channel, another control channel to send information about control over the UE to ensure that communication is not interrupted during cell handover of the UE.
1. A control channel transmission method comprising:
configuring, by a communications system, at least two control channels for a user equipment, wherein at least one of the control channels is a cell-specific control channel, wherein different user equipment served by a cell correspond to a same cell-specific control channel, wherein at least one of the control channels is a user equipment-specific control channel, and wherein the different user equipment served by a cell correspond to same or different user equipment-specific control channels; and
using, by the communications system, the cell-specific control channel or the user equipment-specific control channel to send information about control over the user equipment, wherein using, by the communications system, the user equipment-specific control channel to send the information about control over the user equipment comprises:
using, by the communications system, a user equipment-specific scrambling code to perform scrambling on the information about control; and
using, by the communications system, the user equipment-specific control channel or the cell-specific control channel to send scrambled information about control, wherein generation parameters of the user equipment-specific scrambling code comprise a user equipment-specific identity, wherein configuration parameters of the user equipment-specific control channel comprise the user equipment-specific identity, wherein a generation sequence of a scrambling code sequence of a user equipment-specific control channel is: C init =└n s /2┘2 9 +N ID UE-specific-cellID ,and wherein n s is a system timeslot number and N ID UE-specific-cellID is a user equipment-specific identity.
2. The method according to claim 1 , wherein configuring, by the communications system, at least two control channels for the user equipment comprises:
configuring, by the communications system, at least one first user equipment-specific control channel and at least one first cell-specific control channel for the user equipment in a first cell; and
configuring, by the communications system, at least one second user equipment-specific control channel and at least one second cell-specific control channel for the user equipment in a second cell.
3. The method according to claim 2 , wherein a cell-specific identity of the first cell is the same as the cell-specific identity of the second cell, and wherein the first cell-specific control channel is the same as the second cell-specific control channel.
4. The method according to claim 2 , wherein a cell-specific identity of the first cell is different from a cell-specific identity of the second cell, and wherein the first cell-specific control channel is different from the second cell-specific control channel.
5. A control channel transmission method comprising:
detecting, by a user equipment on a cell-specific control channel or a user equipment-specific control channel assigned by a communications system, information sent by the communications system about control over the user equipment,
wherein the communications system configures at least two control channels for the user equipment,
wherein at least one of the control channels is a cell-specific control channel,
wherein different user equipment served by a cell correspond to a same cell-specific control channel,
wherein at least one of the control channels is a user equipment-specific control channel,
wherein different user equipment served by a cell correspond to same or different user equipment-specific control channels,
wherein detecting, by the user equipment on the cell-specific control channel or the user equipment-specific control channel assigned by the communications system, information sent by the communications system about control over the user equipment comprises using, by the user equipment, a user equipment-specific scrambling code to perform descrambling on the information about control,
wherein generation parameters of the user equipment-specific scrambling code comprise a user equipment-specific identity,
wherein configuration parameters of the user equipment-specific control channel comprise a user equipment-specific identity,
wherein a generation sequence of a scrambling code sequence of a user equipment-specific control channel is: C init =└n s /2┘2 9 +N ID UE-specific-cellID ,and
wherein n s is a system timeslot number and N ID UE-specific-cellID is a user equipment-specific identity.
6. The method according to claim 5 , wherein the communications system configures at least one first user equipment-specific control channel and at least one first cell-specific control channel for the user equipment in a first cell, and wherein the communications system configures at least one second user equipment-specific control channel and at least one second cell-specific control channel for the user equipment in a second cell.
7. The method according to claim 6 , wherein a cell-specific identity of the first cell is the same as a cell-specific identity of the second cell, and wherein the first cell-specific control channel is the same as the second cell-specific control channel.
8. The method according to claim 6 , wherein a cell-specific identity of the first cell is different from a cell-specific identity of the second cell, and wherein the first cell-specific control channel is different from the second cell-specific control channel.
9. A base station comprising:
a processor configured to configure at least two control channels for a user equipment, wherein at least one of the control channels is a cell-specific control channel, wherein different user equipment served by a cell correspond to a same cell-specific control channel, wherein at least one of the control channels is a user equipment-specific control channel, and wherein different user equipment served by a cell correspond to same or different user equipment-specific control channels; and
a sender configured to use the cell-specific control channel or the user equipment-specific control channel to send information about control over the user equipment,
wherein the processor is further configured to:
use a user equipment-specific scrambling code to perform scrambling on the information about control; and
use the user equipment-specific control channel or the cell-specific control channel to send scrambled information about control, wherein generation parameters of the user equipment-specific scrambling code comprise a user equipment-specific identity, wherein configuration parameters of the user equipment-specific control channel comprise a user equipment-specific identity, wherein a generation sequence of a scrambling code sequence of a user equipment-specific control channel is: C init =└n s /2┘2 9 +N ID UE-specific-cellID ,and wherein n s is a system timeslot number and N ID UE-specific-cellID is a user equipment-specific identity.
10. The base station according to claim 9 , wherein the processor is configured to:
configure at least one first user equipment-specific control channel and at least one first cell-specific control channel for the user equipment in a first cell; and
configure at least one second user equipment-specific control channel and at least one second cell-specific control channel for the user equipment in a second cell.
11. The base station according to claim 10 , wherein a cell-specific identity of the first cell is the same as a cell-specific identity of the second cell in the processor, and wherein the first cell-specific control channel is the same as the second cell-specific control channel.
12. The base station according to claim 10 , wherein a cell-specific identity of the first cell is different from a cell-specific identity of the second cell in the processor, and wherein the first cell-specific control channel is different from the second cell-specific control channel.
13. A user equipment comprising:
a detector configured to:
detect, on a cell-specific control channel and/or a user equipment-specific control channel assigned by a communications system, information about control of the communications system over the user equipment, wherein the communications system configures at least two control channels for the user equipment, wherein at least one of the control channels is a cell-specific control channel, wherein different user equipment served by a cell correspond to a same cell-specific control channel, wherein at least one of the control channels is a user equipment-specific control channel, and wherein different user equipment served by the cell correspond to same or different user equipment-specific control channels; and
use a user equipment-specific scrambling code to perform descrambling on the information about control, wherein generation parameters of the user equipment-specific scrambling code comprise a user equipment-specific identity in the processor, wherein a generation sequence of a scrambling code sequence of a user equipment-specific control channel is: C init =└n s /2┘2 9 +N ID UE-specific-cellID ,and wherein n s is a system timeslot number and N ID UE-specific-cellID is a user equipment-spcific identity.
14. The equipment according to claim 13 , wherein the communications system configures at least one first user equipment-specific control channel and at least one first cell-specific control channel for the user equipment in a first cell, and wherein the communications system configures at least one second user equipment-specific control channel and at least one second cell-specific control channel for the user equipment in a second cell.
15. The equipment according to claim 14 , wherein a cell-specific identity of the first cell is the same as a cell-specific identity of the second cell, and wherein a first cell-specific control channel is the same as a second cell-specific control channel.
16. The equipment according to claim 14 , wherein a cell-specific identity of the first cell is different from a cell-specific identity of the second cell, and wherein the first cell-specific control channel is different from the second cell-specific control channel.