NodeB and method for transmitting control and scheduling information
View Patent ↗The present invention discloses a method for transmitting control and scheduling information. The method comprises an eNodeB transmitting control and scheduling information unable to be beamformed in a DwPTS. The control and scheduling information unable to be beamformed is switched from the downlink service slot to the DwPTS and then transmitted, so that the efficiency of time and frequency transmission is improved, the design complexity of the transmitter is reduced, the capacity of the radio access system may be improved and the design of the receiver may be simplified. The present invention also discloses a NodeB.
1. A method for transmitting control and scheduling information, comprising:
transmitting in the DwPTS by an eNodeB the control and scheduling information unable to be beamformed,
wherein if a subframe has downlink pilot information, the eNodeB multiplies the control and scheduling information and the downlink pilot information in a same DwPTS on the subframe and then transmits the resulting information using the remaining bandwidth resources of the DwPTS, and
if a subframe has no downlink pilot information, the eNodeB maps the control and scheduling information to the whole DwPTS on the subframe and then transmits the resulting information using the whole bandwidth resources of the DwPTS.
2. The method according to claim 1 , wherein
when the eNodeB's cell bandwidth is larger than a bandwidth occupied by downlink pilot information, the eNodeB transmits the control and scheduling information in an interframe or every-frame mode; and
when the eNodeB's cell bandwidth is equal to the bandwidth occupied by the downlink pilot information, the eNodeB transmits the control and scheduling information in the interframe mode.
3. The method according to claim 2 , wherein an interval of the interframe mode transmission is one frame or several frames.
4. The method according to claim 2 , wherein when the eNodeB's cell bandwidth is larger than a bandwidth occupied by downlink pilot information, the eNodeB transmits the control and scheduling information with frequency resources that remain in the DwPTS after the downlink pilot information is transmitted in the DwPTS, or the eNodeB transmits the control and scheduling information with all the frequency resources of the DwPTS.
5. A NodeB, comprising
a transmitting module, for transmitting control and scheduling information unable to be beamformed to a UE,
wherein if a subframe has downlink pilot information, the eNodeB multiplies the control and scheduling information and the downlink pilot information in a same DwPTS on the subframe and then transmits the resulting information using the remaining bandwidth resources of the DwPTS, and
if a subframe has no downlink pilot information, the eNodeB maps the control and scheduling information to the whole DwPTS on the subframe and then transmits the resulting information using the whole bandwidth resources of the DwPTS.
6. The NodeB according to claim 5 , wherein
when the NodeB's cell bandwidth is larger than a bandwidth occupied by downlink pilot information, the NodeB transmits the control and scheduling information in the interframe or every-frame mode; and
when the NodeB's cell bandwidth is equal to the bandwidth occupied by the downlink pilot information, the NodeB transmits the control and scheduling information in the interframe mode.
7. The NodeB according to claim 6 , wherein when the NodeB's cell bandwidth is larger than a bandwidth occupied by downlink pilot information, the NodeB transmits the control and scheduling information with frequency resources that remain in the DwPTS after the downlink pilot information is transmitted in the DwPTS, or the NodeB transmits the control and scheduling information with all the frequency resources of the DwPTS.