The present invention provides a UL data transmission method in a wireless communication system, including determining, by the UE, UL virtual resources allocated to the UE by the eNB according to Downlink Control Information (DCI) used for scheduling UL physical resources sent from the eNB to the UE; determining, by the UE, the UL physical resources used for transmitting the UL data after frequency hopping processing in a preset frequency domain when determining that the UL data needs to be processed with frequency hopping processing according to the DCI, if the UL virtual resources allocated to the UE locate at UL sub-frames in a non-aggregation K of any wireless frame, and locate at the preset frequency domain; bearing, by the UE, the UL data and feeding the UL data back to the eNB utilizing the determined UL physical resources which are processed with the frequency hopping processing and used for transmitting the UL data. With the present invention, the PUSCH channel resource collision may be avoided, the frequency diversity gain may be maximized, and the PUSCH performances may be enhanced.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method for uplink (UL) data transmission in a wireless communication system, the method comprising: determining, by a User Equipment (UE), UL virtual resources allocated to the UE by an Evolved Node B (eNB) according to Downlink Control Information (DCI) used for scheduling UL physical resources sent from the eNB to the UE, wherein at least two Component Carriers (CC)s having different frame structure configurations are present in CCs configured for the UE; determining, by the UE, the UL physical resources used for transmitting UL data after frequency hopping processing in a preset frequency domain when determining that the UL data is to be processed with frequency hopping processing according to the DCI, if the UL virtual resources allocated to the UE are located at UL sub-frames in a non-aggregation K of any wireless frame and located at the preset frequency domain; transmitting, by the UE, the UL data to the eNB utilizing the determined UL physical resources which are processed with the frequency hopping processing and used for transmitting the UL data; wherein an aggregation K is an aggregation of UL sub-frames which are determined according to configured and different CC frame structure configurations and used for feeding back Acknowledgment/Negative Acknowledgement (ACK/NACK) information, and wherein the preset frequency domain is an overlapping area of a Physical Uplink Control Channel (PUCCH) area of UL sub-frames in the aggregation K and a Physical Uplink Shared Channel (PUSCH) area of sub-frames in the non-aggregation K.
2. The method of claim 1 , wherein determining whether the UL virtual resources allocated to the UE are located at the preset frequency domain comprises: determining whether a UL virtual resource block m allocated to the UE satisfies a condition m < N RB HO / 2 or m > N RB UL - N RB HO 2 ; and determining that the UL virtual resources allocated to the UE are located at the preset frequency domain if the UL virtual resource block m satisfies the condition, otherwise determining that the UL virtual resources allocated to the UE are not located at the preset frequency domain; wherein N RB UL is a total number of Resource Blocks (RB)s in a UL system bandwidth, N RB HO and is an offset of frequency hopping issued by the system.
3. The method of claim 1 , wherein determining, by the UE, the UL physical resources used for transmitting the UL data after the frequency hopping processing in the preset frequency domain comprises: determining n PRB s2 (i)=N RB UL −1−n PRB s1 (i), wherein n PRB s2 (i) is a position of a UL physical resource which is used for transmitting the UL data after the frequency hopping processing, n PRB s1 (i) is a position of a UL virtual resource allocated to the UE, N RB UL is a total number of RBs in the UL system bandwidth, and i is a number of the UL virtual resources allocated to the UE.
4. A User Equipment (UE) for transmitting uplink (UL) data in a wireless communication system, the UE comprising: control circuitry configured to: determine, by a UE, UL virtual resources allocated to the UE by an Evolved Node B (eNB) according to Downlink Control Information (DCI) used for scheduling UL physical resources sent from the eNB to the UE, wherein at least two Component Carriers (CC)s having different frame structure configurations are present in CCs configured for the UE, and determine the UL physical resources used for transmitting UL data after frequency hopping processing in a preset frequency domain when determining that the UL data is to be processed with frequency hopping processing according to the DCI, if the UL virtual resources allocated to the UE are located at UL sub-frames in a non-aggregation K of any wireless frame and located at the preset frequency domain; and a transmitter configured to transmit the UL data to the eNB utilizing the determined UL physical resources which are processed with the frequency hopping processing and used for transmitting the UL data, wherein an aggregation K is an aggregation of UL sub-frames which are determined according to configured and different CC frame structure configurations and used for feeding back Acknowledgment/Negative Acknowledgement (ACK/NACK) information, and wherein the preset frequency domain is an overlapping area of a Physical Uplink Control Channel (PUCCH) area of UL sub-frames in the aggregation K and a Physical Uplink Shared Channel (PUSCH) area of sub-frames in the non-aggregation K.
5. The UE of claim 4 , wherein the control circuitry is configured to: determine whether a UL virtual resource block m allocated to the UE satisfies a condition m < N RB HO / 2 or m > N RB UL - N RB HO 2 ; and determine that the UL virtual resources allocated to the UE are located at the preset frequency domain if the UL virtual resource block m satisfies the condition, otherwise determining that the UL virtual resources allocated to the UE are not located at the preset frequency domain; wherein N RB UL is a total number of Resource Blocks (RB)s in a UL system bandwidth, and N RB HO is an offset of frequency hopping issued by the system.
7. The wireless communication system of claim 4 , wherein the UE is configured to: determine whether a UL virtual resource block m allocated to the UE satisfies a condition m < N RB HO / 2 or m > N RB UL - N RB HO 2 ; and determine that the UL virtual resources allocated to the UE are located at the preset frequency domain if the UL virtual resource block m satisfies the condition, otherwise determining that the UL virtual resources allocated to the UE are not located at the preset frequency domain; wherein N RB UL is a total number of Resource Blocks (RB)s in a UL system bandwidth, and N RB HO is an offset of frequency hopping issued by the system.
9. A wireless communication system, comprising: an Evolved Node B (eNB); and a User Equipment (UE) configured to: determine, by a UE, UL virtual resources allocated to the UE by the eNB according to Downlink Control Information (DCI) used for scheduling UL physical resources sent from the eNB to the UE, wherein at least two Component Carriers (CC)s having different frame structure configurations are present in CCs configured for the UE, and determine the UL physical resources used for transmitting UL data after frequency hopping processing in a preset frequency domain when determining that the UL data is to be processed with frequency hopping processing according to the DCI, if the UL virtual resources allocated to the UE are located at UL sub-frames in a non-aggregation K of any wireless frame and located at the preset frequency domain; and transmit the UL data to the eNB utilizing the determined UL physical resources which are processed with the frequency hopping processing and used for transmitting the UL data, wherein an aggregation K is an aggregation of UL sub-frames which are determined according to configured and different CC frame structure configurations and used for feeding back Acknowledgment/Negative Acknowledgement (ACK/NACK) information, and wherein the preset frequency domain is an overlapping area of a Physical Uplink Control Channel (PUCCH) area of UL sub-frames in the aggregation K and a Physical Uplink Shared Channel (PUSCH) area of sub-frames in the non-aggregation K.
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September 20, 2012
February 23, 2016
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