WO2012058949A1 - Method and device for feeding back buffer status report - Google Patents

Abstract

Provided is a method for feeding back a buffer status report BSR, comprising: configuring, by a network side, a UE in an explicit feedback mode, completing measurement of channel information on a physical layer of the UE, and sending a measurement result to a MAC layer; and reporting, by the UE, a BSR to the network side according to logic channel data volume. A device for feeding back a buffer status report BSR is further provided. According to the technical solutions of the present invention, the problem of feedback data buffer report in the process of explicit feedback of UE BSR can be solved, so as to ensure the uplink resource authorization in feedback of UE.

Description

 Buffer zone status report feedback method and device

The present invention relates to a wireless communication system, the other ¹ J Laid relates to LTE-A (Long Term Evolution- Advance , advanced long-term evolution) system, a UE (User Equipment, user equipment) buffer status reporting feedback method and apparatus. Background technique

 CoMP (Coordinated Multipoint Transmission) technology utilizes the transmit antennas of multiple cells for cooperative transmission to achieve higher capacity and reliable transmission of the radio link at the cell edge, which can effectively solve the problem of cell edge interference.

 CoMP technology can be divided into two types: JP (Joint Process) and CS/CB (Coordinated Scheduling/Coordinated Beamforming). Both types of multi-point cooperation technologies require channels for UE feedback. Status information is supported.

 The UE feedback schemes that are most concerned in the current 3GPP conference are divided into two types: explicit feedback (Explicit feedback) and implicit feedback (implicit feedback). The explicit feedback refers to the correlation matrix of the frequency domain channel response information or the frequency domain channel information after the user observes the channel condition, and does not perform any processing on the information, and directly feeds back to the base station, so that the base station obtains complete channel response information. Implicit feedback means that after the channel condition is observed, the user processes the obtained channel response information and converts it into a specific quantized value and feeds back to the base station, such as CQI (Channel Quality Indicator) and PMI (Precoding Matrix Indicator, Precoding matrix indication) and so on.

The feedback in the LTE (Long Team Evolution) system R8 (Release 8) standard includes two types, one is periodic feedback transmitted on the PUCCH (Physical Uplink Control Channel), and the other is Is on PUSCH ( Physical Uplink The aperiodic feedback transmitted on the Shared Channel, the physical uplink shared channel, is implicit feedback. Explicit feedback will inevitably lead to better performance gains. However, due to the feedback of all channel response information to the base station, the overhead brought to the system will be relatively large, but as the business needs continue to grow and The constant demand for performance improvement, explicit feedback is still a feedback method worthy of attention.

 The existing LTE system performs uplink scheduling on different UEs. The uplink scheduling process mainly includes the following steps:

 Step 1: The UE sends an uplink scheduling information report to the network side, and the uplink scheduling information report mainly includes a BSR (Buffer Status Reports).

 Step 2: The network side allocates resources to the UE according to a certain policy according to the resource usage situation and the uplink scheduling information of all UEs, and generates uplink authorization information of the UE.

 Step 3: The network side sends the authorization to the UE.

 Step 4: The UE sends data and control information according to the uplink grant.

 In the LTE system, the BSR MAC (Media Access Control) control unit in the R8 standard can be divided into a short BSR MAC control unit and a long BSR MAC control unit. Figure 1 shows the R8 standard. Medium and short BSR MAC control unit, including two domains, LCG ID (Logic Channel Identity) domain and Buffer Size (Buffer Size Indicator Domain), Figure 2 is the R8 standard long BSR MAC control unit, including four The fields, that is, Buffer Size#0, Buffer Size#l, Buffer Size#2, Buffer Size#3, correspond to four logical channel groups, respectively. If only one logical channel group of the UE has data to transmit, the UE reports a short BSR. If there is more than one logical channel group in the buffer area of the UE, the UE reports the long BSR.

Regardless of the periodic feedback on the PUCCH or the aperiodic feedback on the PUSCH, the capacity of the BSR does not support the feedback of the feedback information, and the BSR explicit feedback is provided. , the existing technology does not give specific Program. Summary of the invention

 In view of the above, the main purpose of the present invention is to provide a method for reporting BSR feedback of a buffer status report, so as to solve the problem of reporting a feedback data cache in the UE BSR explicit feedback process, and further ensuring uplink resource authorization when the UE feeds back.

 According to an aspect of the present invention, a buffer status report BSR feedback method is provided, including:

 The network side configures the UE to be an explicit feedback mode, and performs measurement of the channel information at the physical layer of the UE and sends the measurement result to the MAC layer. The UE reports the BSR to the network side according to the amount of the logical channel data.

 Further, the measurement of the channel information includes: channel state information of the current cell and interference information of the neighboring cell to the UE of the local cell.

 Further, the reported BSR includes: a coordinated multi-point transmission CoMP BSR and a BSR in the LTE R8 standard; and the CoMP BSR includes a short CoMP BSR and a long CoMP BSR.

 Further, if the explicit feedback mode is periodic, the reporting the BSR by the UE to the network side includes: configuring, by the network side, the subframe n and the feedback period of the UE to feed back COMP channel information data; if in the subframe nk If more than one logical channel group data needs to be sent, the UE reports the long CoMP BSR in the subframe nk; if only one logical channel group data needs to be transmitted at the subframe nk, or four of the logical channel groups If no data needs to be sent, the UE reports the short CoMP BSR in the subframe nk; if more than one logical channel group data needs to be transmitted in other subframes except the subframe nk, the UE is The current subframe reports the long BSR in the LTE R8 standard; if only one logical channel group data needs to be transmitted in other subframes except the subframe nk, the short subframe BSR in the LTE R8 standard is reported in the current subframe UE. .

Further, if the explicit feedback mode is aperiodic, the method further includes: controlling the feedback time by the network side signaling and reporting the BSR according to the step of periodic feedback. Further, the short CoMP BSR includes two bytes: the first byte is a short BSR in the LTE R8 standard, and the logical channel group indicates the LCG ID field and the Buffer Size #0 field; the second byte includes the R domain and the Buffer. The Size#1 field, the R domain occupies two bits, and the Buffer Size#1 field occupies six bits, and is used to indicate the size of the channel information feedback data amount; the long CoMP BSR includes four bytes: first, second The three-byte is the long BSR in the LTE R8 standard, including: Buffer Size#0 domain, Buffer Size#l domain, Buffer Size#2 domain, and Buffer Size#3 domain, each domain occupies six bits, respectively corresponding logic The channel group ID; the fourth byte includes the R domain and the Buffer Size #4 domain, the R domain occupies two bits, and the Buffer Size #4 field occupies 6 bits, and is used to indicate the size of the channel information feedback data amount.

 Further, after the UE reports the BSR to the network, the method further includes: determining, by the network side, the BSR type of the ^^, the size and feedback of each logical channel group buffer area on the UE by using the logical channel ID in the BSR The channel state information data volume size is completed, and the configuration of the uplink resource of the UE is completed; the UE creates a data encapsulating unit MAC PDU in the corresponding uplink subframe according to the configuration of the uplink resource, and the channel information data is in physical The layer is mapped to the physical uplink shared channel PUSCH for transmission.

 According to another aspect of the present invention, a buffer status report BSR feedback apparatus is provided, including:

 a measurement module, configured to measure the channel information and send the measurement result to the MAC entity; the reporting module is configured to report the BSR of the UE to the network side, and the uplink resource configuration module is configured to use the BSR reported by the reporting module And the transmitting module is configured to transmit channel information data on the PUSCH according to the uplink resource configured in the uplink resource configuration module.

 Further, the channel information measured in the measurement module includes: channel information of the current cell and interference information of the neighboring cell to the UE.

Further, the upper module further includes: a configuration unit, configured to configure a feedback period The determining unit is configured to determine the type of the reported BSR, and the sending unit is configured to send the BSR of the UE to the network side according to the result in the determining unit.

 Further, the uplink resource configuration module completes configuration of the UE uplink resource according to the reported BSR type, the size of each logical channel group buffer area, and the amount of channel state information data that is fed back.

 Further, the transmission module further includes: a creating unit, configured to create a MAC PDU in a corresponding uplink subframe according to the configured uplink resource of the UE; and a mapping unit, configured to map the channel information data to the PUSCH at a physical layer Transfer on.

 The feedback method and device provided by the present invention solves the problem that the channel state information is cached and reported in the feedback process of the UE, so that the eNB obtains the channel state information that the UE needs to feedback in real time, and then performs uplink resource authorization on the UE to ensure explicit feedback. Successful completion. In addition, it ensures the smooth progress of multi-point collaboration and improves the user experience of users at the edge of the cell. DRAWINGS

 The drawings described herein are intended to provide a further understanding of the present invention, and are intended to be a part of the present invention, and the description of the present invention is not intended to limit the invention. In the drawing:

 1 is a schematic diagram showing the structure of a short BSR and a truncated BSR MAC control unit in the prior art R8 standard;

 2 is a schematic diagram showing the structure of a long BSR and a truncated BSR MAC control unit in the prior art R8 standard;

 3 is a schematic diagram showing a feedback flow of the present invention;

 4 is a schematic diagram of a short CoMP BSR MAC control unit of the present invention;

 Figure 5 is a schematic diagram of a long CoMP BSR MAC control unit of the present invention;

6 is a schematic diagram of a MAC PDU subheader corresponding to a CoMP BSR MAC control unit of the present invention; Figure

 7 is a schematic structural diagram of an FDD frame of an embodiment;

 8 is a schematic structural diagram of a TDD subframe configuration 1 frame;

 9 is a schematic structural view of a display feedback device of the present invention;

 FIG. 10 is a schematic diagram showing the optimized structure of the display feedback device of the present invention. detailed description

 The basic idea of the present invention is: the network side configures the UE to be an explicit feedback mode, completes the measurement of the channel information at the physical layer of the UE, and sends the measurement result to the MAC layer; the UE reports the BSR to the network side according to the amount of the logical channel data. .

 The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

 According to an embodiment of the present invention, a buffer status report BSR feedback method is provided. As shown in FIG. 3, the method includes:

 Step S101: The network side configures the UE to be an explicit feedback mode, completes measurement of channel information at the physical layer of the UE, and sends the measurement result to the MAC layer.

 Step S102: The UE reports the BSR to the network side according to the logical channel data amount.

 With this embodiment, the problem of the channel state information cache reporting in the UE feedback process is solved, so that the eNB obtains the channel state information amount that the UE needs to feedback in real time, and then performs uplink resource authorization on the UE to ensure the smooth completion of the explicit feedback. In addition, it ensures the smooth progress of multi-point collaboration and improves the user experience of users at the edge of the cell.

 The measurement of the channel information in step S101 includes: channel state information of the current cell and interference information of the neighboring cell to the local cell UE.

 Further, the foregoing BSR includes: a coordinated multi-point transmission CoMP BSR and a BSR in the LTE R8 standard; and the foregoing CoMP BSR includes a short CoMP BSR and a long CoMP BSR.

Step S102 can be implemented as follows: if the explicit feedback mode is periodic, The steps of the UE to the BSR on the network side include:

 The network side configures the subframe n and the feedback period of the UE feedback COMP channel information data;

 If more than one logical channel group data needs to be transmitted at the subframe n-k, the UE describes the long CoMP BSR in the subframe n-k;

 If only one logical channel group data needs to be transmitted at the subframe nk, or if none of the four logical channel groups need to be transmitted, the UE reports the short CoMP BSR in the subframe nk; if the subframe nk is excluded If the other subframes have more than one logical channel group data to be sent, the UE reports the long BSR in the LTE R8 standard in the current subframe.

 If only one logical channel group data needs to be transmitted in other subframes except the above subframes n-k, the short BSR in the LTE R8 standard is reported in the current subframe UE.

 Further, if the explicit feedback mode is aperiodic, the network side signaling controls the feedback time and reports the BSR according to the step of periodic feedback.

 Further, as shown in FIG. 4, the short CoMP BSR includes two bytes: the first byte is a short BSR in the LTE R8 standard, and includes a logical channel group identifier LCG ID field and a Buffer Size #0 field; The R domain and the Buffer Size #1 field, the R domain occupies two bits, and the Buffer Size #1 field occupies six bits, and is used to indicate the amount of data feedback of the channel information. As shown in FIG. 5, the long CoMP BSR includes Four bytes: The first, second, and third bytes are long BSRs in the LTE R8 standard, including: Buffer Size#0 field, Buffer Size#1 field, Buffer Size#2 field, and Buffer Size#3 field, each The domain occupies six bits, corresponding to the logical channel group ID; the fourth byte includes the R domain and the Buffer Size #4 domain, the R domain occupies two bits, and the Buffer Size #4 field occupies 6 bits, and is used to indicate the channel information. The amount of feedback data.

After the step S102, the network side determines, by using the logical channel ID in the BSR, the BSR type reported by the UE, the size of each logical channel group buffer area, and the amount of channel state information data that is fed back. Configuration of uplink resources; wherein, the network side can Obtaining a logical channel ID by parsing a MAC PDU sub-header; the UE creates a data encapsulating unit MAC PDU in a corresponding uplink subframe according to the configuration of the uplink resource, and maps the channel information data to a physical uplink shared channel PUSCH at a physical layer. Transfer on.

 The implementation process of the display feedback method is described in detail below by way of an embodiment.

 Embodiment 1:

 This embodiment considers the frame structure of the FDD system. For the FDD system, any uplink subframe in the frame structure can feed back channel information. As shown in FIG. 7, the network side configures the feedback period of the UE by the high-layer signaling to be 10 milliseconds, and the PHY layer (physical layer) of the UE performs channel information measurement in the subframe n and reports the measurement result to the UE. In the MAC layer, the UE sends a BSR in the uplink subframe nk of each frame. In this embodiment, n selects 8 and k selects 4, that is, the PHY layer of the UE performs channel information measurement in the subframe 8 and reports the measurement result to the UE. The MAC layer, the UE sends a BSR in the uplink subframe 4 of each frame, and the type of the BSR is determined according to the state of the buffer area. If the buffer area at the subframe 4 has only one logical channel group data and channel state information data that needs to be fed back, The short CoMP BSR reported by the UE, the logical channel ID of the short CoMP BSR in the present invention may be set to 11000. If there is more than one logical channel group data in the buffer area at the subframe 4 and the feedback channel state information data needs to be sent, the UE The long CoMP BSR is reported, and the logical channel ID of the long CoMP BSR can be set to 11001. For other subframes in the 10 millisecond period, if there is more than one logical channel group currently having data to send, report the long BSR in the LTE R8 standard. If only one logical channel group in the current subframe has data to be sent, report it to LTE. Short BSR in the R8 standard.

The network side determines how to perform uplink resource authorization according to the received BSR type. If the logical channel ID corresponding to the BSR received by the network side is 11000, it indicates that the UE is a short CoMP BSR, and the network side is based on the Buffer Size of the short CoMP BSR. The #1 field obtains the size of the feedback data, and performs uplink resource authorization on the UE during scheduling. If the logical channel ID corresponding to the BSR received by the network side is 11001, the UE reports the long CoMP BSR, and the network side according to the present invention Long The Buffer Size #4 field in the CoMP BSR obtains the size of the feedback data, and performs uplink resource authorization on the UE during scheduling.

 The UE creates a MAC PDU according to the priority of the logical channel in the uplink subframe 8 according to the uplink resource authorized by the network side, and the logical channel ID of the channel state information data transmission may be set to 10111, and the logical channel is mapped to the UL-SCH transmission of the PUSCH. .

 Embodiment 2:

 This embodiment considers the frame structure of the TDD system. For the TDD system, the uplink and downlink subframe switching periods of 5 milliseconds and 10 milliseconds are supported. The TDD system includes a 7-seed frame configuration mode, and is now in subframe configuration mode 1, as shown in FIG. To illustrate the specific implementation process of the present invention, other subframe configuration modes have similar processes. The network side configures the feedback period of the UE by the high layer signaling to be 10 milliseconds, and the PHY layer of the UE performs channel information measurement and reports the measurement structure to the MAC layer of the UE, and the UE determines according to the feedback mode and the number of cells that need to feed back the channel state. The size of the feedback quantity, in the uplink subframe 3, according to the state of the buffer area, which type of BSR is sent. If the data of the logical channel group and the channel state information data of the UE buffer area need to be sent at this time, the UE reports the short CoMP. The logical channel ID of the short CoMP BSR can be set to 11000. If there is more than one logical channel group data and the feedback channel state information data needs to be sent in the UE buffer area at this time, the UE reports the long CoMP BSR, and the logic of the long CoMP BSR. The channel ID can be set to 11001. For other subframes in the 10 millisecond period, if there is more than one logical channel group currently having data to send, report the long BSR in LTE R8. If there is only one logical channel group in the current subframe, the data needs to be sent, and then report to LTE R8. Short BSR in.

The network side determines how to perform uplink resource authorization according to the received BSR type. If the logical channel ID corresponding to the BSR received by the network side is 11000, it indicates that the UE is a short CoMP BSR, and the network side is based on the Buffer Size of the short CoMP BSR. The #1 field is used to obtain the size of the feedback data, and the uplink resource authorization of the UE is scheduled. If the logical channel ID corresponding to the BSR received by the network side is 11001, the UE reports the long CoMP BSR, and the network side according to the long CoMP in the present invention. The Buffer Size #4 field in the BSR obtains the size of the feedback data, and authorizes the uplink resource of the UE during scheduling.

 The UE creates a MAC PDU according to the priority of the logical channel in the uplink subframe 7 according to the uplink resource grant of the network side, and the logical channel ID of the channel information data transmission can be set to 10111, and the logical channel is mapped to the UL-SCH of the PUSCH for transmission.

 In order to implement the above method, the present invention further provides a buffer status report BSR feedback device. As shown in FIG. 9, the display feedback device includes: a measurement module 1, a reporting module 2, an uplink resource configuration module 3, and a transmission module 4. The above results are described in detail below.

 The measurement module 1 is configured to measure channel information and send the foregoing measurement result to the MAC entity; the reporting module 2 is connected to the measurement module 1 for reporting the BSR of the UE side to the network side; and the uplink resource configuration module 3 is connected to the reporting module 2 And configured to complete the configuration of the uplink resource of the UE according to the BSR reported by the reporting module; the transmission module 4 is connected to the uplink resource configuration module 3, configured to transmit channel information on the PUSCH according to the uplink resource configured in the foregoing uplink resource configuration module. data.

 Preferably, as shown in FIG. 10, the display feedback device comprises the following structure:

 The reporting unit 2 includes: a configuration unit 201, configured to configure a feedback period and a subframe n of the UE to feed back COMP channel information data; a determining unit 202, configured to determine a type of the reported BSR, and a sending unit 203, configured to be used according to the determining unit The result is that the UE's BSR is 4艮 to the network side.

 The transmission module 4 includes: a creating unit 401, configured to create a MAC PDU in a corresponding uplink subframe according to the foregoing UE uplink resource, and a mapping unit 402, configured to map the channel information data to the PUSCH at a physical layer.

 The implementation process of the display feedback device will be described in detail below by way of an embodiment.

For an FDD system, any one of the uplink subframes in the frame structure can be used for feedback. First, the measurement of the channel information is completed in the measurement module 1 and the measurement result is reported to the UE through the subframe 8. In the MAC layer, the configuration unit 201 of the reporting module 2 configures a feedback period and a subframe in which the UE feeds back the COMP channel information data, where the feedback period is set to 10 milliseconds, and the UE feeds back the COMP channel information data to the subframe 4; Determining, according to the UE buffer type and the channel state information data that needs to be fed back, the transmission type of the BSR that needs to be reported; sending, in the sending unit 203, the appropriate BSR to the uplink resource configuration module 3, and configuring the logical channel ID in the corresponding BSR; The uplink resource configuration module 3 determines the authorized uplink resource according to the logical channel ID in the BSR, and sends the authorized uplink resource result to the transmission module 4; in the transmission module 4, the creating unit 401 is configured to perform uplink uplink according to the uplink resource of the UE. The subframe creates a MAC PDU, and the mapping unit 402 completes the transmission of the above channel information data on the UL-SCH mapped to the PUSCH by the physical layer.

 Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

 The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

Claim  A buffer status report BSR feedback method, the method includes: configuring, by the network side, the UE to be an explicit feedback mode, performing channel information measurement at the physical layer of the UE, and sending the measurement result to the MAC layer;  The UE reports the BSR to the network side according to the amount of logical channel data.  The method according to claim 1, wherein the measurement of the channel information comprises: channel state information of the current cell, interference information of the neighboring cell to the UE of the local cell, and size of channel information data that needs to be fed back.  3. The method of claim 1 wherein:  The upper BSR includes: a coordinated multi-point transmission CoMP BSR and a BSR in the LTE R8 standard;  The CoMP BSR includes a short CoMP BSR and a long CoMP BSR.  The method according to claim 1, wherein if the explicit feedback mode is periodic, the UE sends a BSR to the network side:  The network side configures the UE to feed back the subframe n of the COMP channel information data and the feedback period;  If more than one logical channel group data needs to be transmitted at the subframe n-k, the UE transmits the long CoMP BSR on the subframe n-k;  If only one logical channel group data needs to be transmitted at the subframe nk, or none of the four logical channel groups need to be transmitted, the UE reports the short CoMP BSR in the subframe nk; If more than one logical channel group data needs to be sent in other subframes other than the frame nk, the UE is only the long BSR in the LTE R8 standard in the current subframe.  If only one logical channel group data needs to be transmitted in other subframes except the subframe n-k, the short BSR in the LTE R8 standard is reported in the current subframe UE. The method according to claim 1 or 4, wherein if the explicit feedback mode is The method further includes: controlling the feedback moment by the network side signaling and reporting the BSR according to the step of periodic feedback.  6. The method of claim 4 wherein:  The short CoMP BSR includes two bytes: The first byte is a short BSR in the LTE R8 standard, including a logical channel group indicating an LCG ID field and a Buffer Size #0 field; the second byte includes an R field and a Buffer Size# l domain, the R domain occupies two bits, and the Buffer Size#1 field occupies six bits, and is used to indicate the amount of data of the channel information feedback;  The long CoMP BSR includes four bytes: The first, second, and third bytes are long BSRs in the LTE R8 standard, including: Buffer Size#0 field, Buffer Size#1 field, Buffer Size#2 field, and Buffer Size. #3域, each domain occupies six bits, corresponding to the logical channel group ID; the fourth byte includes the R domain and the Buffer Size#4 domain, the R domain occupies two bits, and the Buffer Size#4 domain occupies 6 bits. Bit, used to indicate the size of the channel information feedback data amount.  The method according to claim 1, wherein after the UE reports the BSR to the network side, the method further includes:  The network side determines, by using the logical channel ID in the BSR, the type of the BSR reported by the UE, the size of each logical channel group buffer area, and the amount of the channel state information data that is fed back, and completes the configuration of the uplink resource of the UE;  The UE creates a data encapsulation unit MAC PDU in the corresponding uplink subframe according to the configuration of the uplink resource, and maps the channel information data to the physical uplink shared channel PUSCH on the physical layer for transmission.  8. A buffer status report BSR feedback device, the device comprising: a measurement module, configured to measure channel information and send the measurement result to a MAC entity; and a reporting module, configured to report the BSR of the UE side To the network side; An uplink resource configuration module, configured to complete configuration of the uplink resource of the UE according to the BSR reported by the reporting module; a transmission module, configured to: according to the uplink resource configured in the uplink resource configuration module Channel information data is transmitted on the PUSCH.  The device according to claim 8, wherein the channel information measured in the measurement module comprises: channel information of the current cell and interference information of the neighboring cell to the UE.  The apparatus according to claim 8, wherein the reporting module further comprises: a configuration unit, configured to configure a feedback period and a subframe n of the UE feeding back COMP channel information data;  a determining unit, configured to determine a type of the reported BSR; The device according to claim 8, wherein the uplink resource configuration module completes according to the BSR type of the upper >3, the size of each logical channel group buffer area, and the amount of channel state information data that is fed back. The configuration of the uplink resources of the UE.  The device according to claim 8, wherein the transmission module further comprises: a creating unit, configured to create, according to the configured UE uplink resource, a corresponding uplink subframe MAC PDU;  a mapping unit, configured to map the channel information data to a PUSCH for transmission on a physical layer.