WO2019137402A1 - 一种无线通信装置及无线通信方法 - Google Patents

一种无线通信装置及无线通信方法 Download PDF

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Publication number
WO2019137402A1
WO2019137402A1 PCT/CN2019/071019 CN2019071019W WO2019137402A1 WO 2019137402 A1 WO2019137402 A1 WO 2019137402A1 CN 2019071019 W CN2019071019 W CN 2019071019W WO 2019137402 A1 WO2019137402 A1 WO 2019137402A1
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resource block
bundle
size
initial
index
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PCT/CN2019/071019
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English (en)
French (fr)
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焦淑蓉
花梦
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华为技术有限公司
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Priority to EP19738850.7A priority Critical patent/EP3618343B1/en
Priority to ES19738850T priority patent/ES2864543T3/es
Publication of WO2019137402A1 publication Critical patent/WO2019137402A1/zh
Priority to US16/540,851 priority patent/US10797829B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0039—Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a wireless communication device and a wireless communication method.
  • a resource block is used to describe a mapping relationship between a specific physical channel and a resource element.
  • an RB is divided into a physical resource block (PRB) and a virtual resource block (VRB).
  • PRB physical resource block
  • VRB virtual resource block
  • the downlink (or uplink) transmission resources are allocated based on the VRB and then mapped to the PRB.
  • the mapping from VRB to PRB includes two types, namely, a non-interleaved mapping and an interleaving mapping.
  • the VRB is directly mapped to the PRB; for the interleaving mapping, the interleaving needs to be performed first, and then the interleaved VRB is mapped to the PRB.
  • the interleaving mapping how to implement VRB mapping to PRB still needs further research.
  • the present application provides a wireless communication apparatus and a wireless communication method for providing an implementation scheme of mapping a VRB to a PRB.
  • an embodiment of the present application provides a wireless communications apparatus, including:
  • a processing unit configured to determine an index of the virtual resource block in the multiple resource block bundle according to the resource block start index of the bandwidth part and the size of the resource block bundle;
  • mapping unit configured to perform an interlace mapping on the multiple resource block bundles to determine an index of a physical resource block corresponding to an index of the virtual resource block
  • the plurality of resource block bundles include an initial resource block bundle of the interlace map, and the number of virtual resource blocks in the initial resource block bundle is smaller than a size of the resource block bundle.
  • the number of virtual resource blocks in the initial resource block bundle may be smaller than the size of the resource block bundle, so that the number of virtual resource blocks in the initial resource block bundle can be flexibly set as needed to facilitate initial implementation.
  • the resource block bundle and the initial pre-coded resource block group of the bandwidth portion are aligned, thereby effectively improving the accuracy of channel estimation, thereby improving data transmission performance.
  • the number of virtual resource blocks in the initial resource block bundle may also be equal to the size of the resource block bundle;
  • the mapping unit performing interleaving mapping on the multiple resource block bundles may include The multiple resource block bundles are used for the interleaving mapping or the deinterleaving mapping, and are not specifically limited.
  • the wireless communication device may refer to a chip inside the terminal device or the terminal device, or the wireless communication device may also refer to a chip inside the network device or the network device.
  • the number of virtual resource blocks included in the initial resource block bundle is equal to:
  • the processing unit is specifically configured to determine the number of virtual resource blocks included in the initial resource block bundle according to the following formula:
  • n is the number of virtual resource blocks included in the initial resource block bundle
  • L is the size of the resource block bundle.
  • the processing unit is further configured to process high layer signaling, where the high layer signaling is used to indicate a size of the resource block bundle, where the size of the resource block bundle is equal to the resource block bundle The number of resource blocks included.
  • the transceiver further includes a transceiver unit, where the processing unit processes the high-level command, specifically, the processing unit generates a high-level command, and sends the command to the terminal device through the transceiver unit; if the wireless communication device is the terminal device, The transceiver unit is further configured to receive a high-level command from the network device, and the high-level signaling is parsed by the processing unit.
  • the bandwidth portion includes the multiple resource block bundles and at least one remaining resource block, and the remaining resource blocks are not subjected to the interlace mapping;
  • the mapping unit is further configured to directly map an index of the virtual resource block corresponding to the remaining resource block to an index of the physical resource block.
  • the embodiment of the present application provides a wireless communication method, where the method is performed by a wireless communication device, and includes:
  • the plurality of resource block bundles include an initial resource block bundle of the interlace map, and the number of virtual resource blocks in the initial resource block bundle is smaller than a size of the resource block bundle.
  • the number of virtual resource blocks included in the initial resource block bundle is equal to:
  • the determining, according to the resource block start index of the bandwidth part and the size of the resource block bundle, determining an index of the virtual resource block in the multiple resource block bundles including:
  • the number of virtual resource blocks included in the initial resource block bundle is determined according to the following formula:
  • n is the number of virtual resource blocks included in the initial resource block bundle
  • L is the size of the resource block bundle.
  • it also includes:
  • the high layer signaling is used to indicate the size of the resource block bundle, and the size of the resource block bundle is equal to the number of resource blocks included in the resource block bundle.
  • the bandwidth portion includes the multiple resource block bundles and at least one remaining resource block, and the remaining resource blocks are not subjected to the interlace mapping;
  • the method further includes:
  • the index of the virtual resource block corresponding to the remaining resource block is directly mapped to the index of the physical resource block.
  • an embodiment of the present application provides a wireless communications apparatus, including:
  • the storage unit is for storing computer instructions that, when executed in the processing unit, cause the wireless communication device to perform the method flow described in the second aspect.
  • the storage unit may be a volatile memory, that is, temporary storage, and the power-off data is lost, such as a dynamic random access memory (DRAM) or a cache (cache) or a register in the processor (registers) ).
  • DRAM dynamic random access memory
  • cache cache
  • registers registers
  • an embodiment of the present application provides a computer readable storage medium, where the program code is stored, and when the program code is executed by a wireless communication device, the wireless communication device performs a second The method flow described in the aspects.
  • an embodiment of the present application provides a computer program product, where the program code included in the computer program product is executed by a wireless communication device, so that the wireless communication device performs the method flow described in the second aspect.
  • the size of the initial resource block bundle is equal to the size of the resource block bundle, and the initial resource block bundle includes at least one padding resource block and at least one virtual resource block;
  • the size of the initial resource block bundle is equal to the number of virtual resource blocks included in the initial resource block bundle.
  • the wireless communication device is a semiconductor chip that is disposed within a terminal or base station.
  • the wireless communication device is a terminal, the wireless communication device further includes a receiving unit, the receiving unit is configured to receive high layer signaling, and the high layer signaling is used to indicate the resource block bundle the size of.
  • the wireless communication device is a base station, the wireless communication device further includes a sending unit, the sending unit is configured to send high layer signaling, and the high layer signaling is used to indicate the resource block bundle the size of.
  • FIG. 1 is a schematic diagram of a system architecture applicable to the present application
  • FIG. 2 is a schematic diagram of data transmission of a network device and a terminal device
  • Figure 3a is a schematic diagram of a PRG on a BWP
  • FIG. 3b is a schematic flowchart of a wireless communication method according to an embodiment of the present disclosure.
  • 4A is a schematic diagram of a specific process of determining, by the terminal device, an index of a PRB corresponding to an index of a VRB in the prior art
  • FIG. 4b is a schematic diagram of a specific process of determining, by the terminal device, an index of a PRB corresponding to an index of a VRB according to Embodiment 1 of the present application;
  • 4c is a schematic diagram of a specific process of determining, by the terminal device, an index of a PRB corresponding to an index of a VRB according to Embodiment 2 of the present application;
  • FIG. 4 is a schematic diagram of a specific process of determining, by the terminal device, an index of a PRB corresponding to an index of a VRB according to Embodiment 3 of the present application;
  • FIG. 5 is a schematic structural diagram of a wireless communication apparatus according to an embodiment of the present application.
  • FIG. 5b is a schematic structural diagram of still another wireless communication apparatus according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of still another wireless communication apparatus according to an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a system applicable to an embodiment of the present application.
  • the system architecture includes a network device 101, one or more terminal devices, such as the terminal device 1021, the terminal device 1022, and the terminal device 1023 shown in FIG. 1.
  • the network device 101 can transmit downlink data to the terminal device 1021, the terminal device 1022, and the terminal device 1023 through the network, and the terminal device 1021, the terminal device 1022, and the terminal device 1023 can transmit uplink data to the network device 101 through the network.
  • the network device may be a base station (BS).
  • a base station device also referred to as a base station, is a device deployed in a wireless access network to provide wireless communication functionality.
  • a device providing a base station function in a 2G network includes a base transceiver station (BTS) and a base station controller (BSC), and the device providing the base station function in the 3G network includes a Node B (NodeB) and the wireless device.
  • BTS base transceiver station
  • BSC base station controller
  • NodeB Node B
  • a radio network controller which provides a base station function in a 4G network, includes an evolved NodeB (eNB), and a device that provides a base station function in a 5G network, including a new radio node B (New Radio NodeB) , gNB), centralized unit (CU), distributed unit (DU) and new wireless controller.
  • eNB evolved NodeB
  • gNB new radio node B
  • CU centralized unit
  • DU distributed unit
  • a terminal device is a device with wireless transceiver capability that can be deployed on land, indoors or outdoors, handheld or on-board; it can also be deployed on the water (such as ships); it can also be deployed in the air (such as airplanes, balloons, and Satellite, etc.).
  • the terminal device may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control ( Wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation security Wireless terminal equipment in safety), wireless terminal equipment in smart city, wireless terminal equipment in smart home, and the like.
  • FIG. 1 the system architecture illustrated in FIG. 1 is mainly taken as an example, but is not limited thereto.
  • the communication system applicable to the above system architecture includes but is not limited to: time division duplexing-long term evolution (TDD LTE), frequency division duplexing-long term evolution (FDD LTE) Long term evolution-advanced (LTE-A), and various wireless communication systems (eg, 5G NR systems) that are evolving in the future.
  • TDD LTE time division duplexing-long term evolution
  • FDD LTE frequency division duplexing-long term evolution
  • LTE-A Long term evolution-advanced
  • various wireless communication systems eg, 5G NR systems
  • FIG. 2 is a schematic diagram of data transmission of a network device and a terminal device, as shown in FIG. 2, including:
  • Step 201 The network device sends the first signaling to the terminal device, where the first signaling may include a bandwidth part (BWP) size allocated to the terminal device and a resource block start index of the BWP.
  • BWP bandwidth part
  • the first signaling may be a broadcast message, an RRC signaling, or the like, and is not specifically limited.
  • the size of the BWP may specifically be the number of PRBs included in the BWP.
  • the size of the BWP is 50 PRBs.
  • the resource block start index of the BWP may specifically be an offset of the BWP relative to a common resource block (CRB) (a unit that may be offset by a PRB), for example, a BWP relative to the CRB0.
  • the offset is 25, and the resource block start index of the BWP is 25.
  • the first signaling may further include a preset size of a precoding resource block group (PRG), where the preset PRG size may be 2, 4, or a scheduling bandwidth (scheduled) BW)
  • PRG precoding resource block group
  • the size of the preset PRG is 4 as an example.
  • the size of the BWP, the resource block start index of the BWP, and the preset PRG size may be sent by one signaling, or may be sent by using multiple signalings, which is not limited.
  • Step 202 The terminal device receives the first signaling, and determines, according to the first signaling, a PRG packet condition of each PRB in the BWP.
  • the number of PRBs in the first PRG may be determined according to the resource block start index of the BWP and the size of the RB bundle. For details, refer to the following formula:
  • m1 is the number of PRBs in the first PRG (ie, PRG0, or may also be referred to as the initial PRG)
  • the number of PRBs in the last PRG may be determined according to the resource block start index of the BWP, the size of the BWP, and the size of the RB bundle. For details, refer to the following formula:
  • the resource block start index of BWP i, P' BWP, i is the size of the PRG.
  • step 203 the terminal device determines whether to adopt the resource allocation mode 1. If yes, the process proceeds to step 204. If not, the process is performed according to the existing process, and details are not described herein again.
  • the manner in which the terminal device determines whether to adopt the resource allocation mode 1 may be multiple. For example, the terminal device determines whether to adopt the resource allocation mode 1 according to signaling of the network device or whether to receive a fallback DCI. Illustratively, if the terminal device receives the second signaling, the second signaling indicates that the terminal device adopts the resource allocation mode 1, the terminal device determines to adopt the resource allocation mode 1, where the second signaling may be a high layer Signaling, or physical layer signaling (for example, scheduling frequency domain resource allocation information in the DCI); or, if the terminal device determines to receive the fallback DCI, it is determined to adopt the resource allocation mode 1.
  • the second signaling may be a high layer Signaling, or physical layer signaling (for example, scheduling frequency domain resource allocation information in the DCI); or, if the terminal device determines to receive the fallback DCI, it is determined to adopt the resource allocation mode 1.
  • Step 204 The terminal device reads a resource indication value (RIV) from the received DCI, where the RIV is used to indicate a start index of the target VRB and a length of the target VRB.
  • RIV resource indication value
  • the target VRB is the VRB assigned to the terminal device.
  • Step 205 The terminal device determines an index of the PRB corresponding to the index of the target VRB according to the start index of the VRB and the length of the VRB and the index of the PRB corresponding to the index of the VRB.
  • Step 206 The terminal device performs data transmission with the network device according to the index of the PRB corresponding to the index of the target VRB.
  • the terminal device may send uplink data to the network device or receive downlink data sent by the network device on the corresponding PRB according to the index of the PRB corresponding to the index of the target VRB.
  • the terminal device sends the uplink data to the network device as an example.
  • the terminal device needs to first determine the index of the PRB corresponding to the index of the VRB, and then obtain the index of the PRB corresponding to the index of the target VRB, so as to send the uplink data. .
  • FIG. 4a a specific process diagram of determining an index of a PRB corresponding to an index of a VRB in a terminal device in the prior art.
  • the smallest unit of the interlace mapping is a resource block bundle (RB bundle), and the size of the RB bundle may be the same as or different from the size of the PRG, where the RB bundle is used.
  • the size can be the same as the size of the PRG.
  • the size of the RB bundle and the size of the PRG are both 4.
  • the RB bundle i is composed of RB ⁇ iL, iL+1,..., iL+L-1 ⁇ (where L is the RB)
  • the size of the bundle for example, RB bundle 0 is composed of RB0, RB1, RB2, and RB3, and RB bundle 1 is composed of RB4, RB5, RB6, and RB7.
  • the interleaver is an interleaver that is performed in a column.
  • the number of rows of the interleaver is 2. (In the embodiment of the present application, only the number of rows of the interleaver is 2; , can also be other values, specifically not limited), the number of columns of the interleaver is 50 / (4 * 2) up to the value of 7 is 7, a total of 56 VRB (7 * 2 * 4) ).
  • the number of columns of the interleaver is 50 / (4 * 2) up to the value of 7 is 7, a total of 56 VRB (7 * 2 * 4) ).
  • 6 RBs need to be padded.
  • the index of the PRB corresponding to the index of the VRB is obtained by interleaving the mapping and removing the padding RB. As shown in Table 1, the index portion of the PRB corresponding to the index of the VRB is used.
  • Table 1 Example of the index part of the PRB corresponding to the index of the VRB
  • FIG. 3b is a schematic flowchart of a method for wireless communication according to an embodiment of the present application. As shown in FIG. 3b, the method includes:
  • Step 301 Determine an index of the virtual resource block in the multiple resource block bundle according to the resource block start index and the resource block bundle size of the bandwidth part.
  • Step 302 Perform an interlace mapping on the multiple resource block bundles to determine an index of a physical resource block corresponding to an index of the virtual resource block.
  • the plurality of resource block bundles include an initial resource block bundle of the interlace map, and the number of virtual resource blocks in the initial resource block bundle is smaller than a size of the resource block bundle.
  • the number of virtual resource blocks in the initial resource block bundle may be smaller than the size of the resource block bundle, so that the number of virtual resource blocks in the initial resource block bundle can be flexibly set as needed to facilitate initial implementation.
  • the resource block bundle and the initial pre-coded resource block group of the bandwidth portion are aligned, thereby effectively improving the accuracy of channel estimation, thereby improving data transmission performance.
  • a solution provided in the first embodiment of the present application is as shown in FIG. 4b, and is used to solve the technical problem that the RB bundle and the PRG boundary are not aligned.
  • the number of virtual resource blocks included in the initial resource block bundle may be determined according to the resource block start index and the resource block bundle size of the bandwidth portion, and further, according to the number of virtual resource blocks included in the initial resource block bundle. Determine the index of the virtual resource block contained in the initial resource block bundle.
  • the number of virtual resource blocks included in the initial resource block bundle is equal to a remainder of the resource block start index of the bandwidth portion divided by the size of the resource block bundle, and the resource The absolute difference in the size of the block bundle.
  • the number of virtual resource blocks included in the initial resource block bundle may be determined according to the following formula:
  • n is the number of virtual resource blocks included in the initial resource block bundle (ie, RB bundle 0), and L is the size of the RB bundle.
  • the number of virtual resource blocks included in the initial resource block bundle may be determined according to the following formula:
  • n is the number of virtual resource blocks included in the initial resource block bundle (ie, RB bundle 0), and L is the size of the RB bundle.
  • the number of RBs to be filled in the RB bundle 0 can be determined according to the number of virtual resource blocks and the size of the RB bundle included in the RB bundle 0.
  • RB bundle 0 contains Where X is the padding RB and L is the size of the RB bundle.
  • the number of PRBs included in the PRG0 is 3, and the number of VRBs included in the RB bundle 0 is 4.
  • one RB needs to be filled in the RB bundle 0, and the position of the padding is not limited in this embodiment of the present application.
  • FIG. 4b it is a padded schematic diagram, and RB bundle 0 includes (X, RB0, RB1, RB2).
  • the size of the initial resource block bundle is equal to the size of the resource block bundle, and the initial resource block bundle includes at least one padding resource block and at least one virtual resource block. That is to say, the size of RB bundle 0 in the above example can be considered to be 4, which includes one padding resource block (ie, X) and three virtual resource blocks (ie, RB0, RB1, RB2).
  • the size of the initial resource block bundle is equal to the number of virtual resource blocks included in the initial resource block bundle, that is, the size of the RB bundle 0 in the above example can be considered to depend only on the RB bundle 0. The number of virtual resource blocks included, so the size of RB bundle 0 is 3.
  • the index of the PRB corresponding to the index of the VRB is obtained by interleaving the mapping and removing the padding RB. As shown in Table 2, it is an example of the index part of the PRB corresponding to the index of the VRB.
  • Table 2 Example of the index part of the PRB corresponding to the index of the VRB
  • PRG0 since PRG0 includes only 3 PRBs, and RB bundle 0 is filled with 1 RB, it also includes 3 VRBs, so that the RB bundle 0 is modified by modifying the padding rules of the interleaver.
  • the index of the VRB (0/1/2) corresponds to the index of the PRB in the PRG0 (0/1/2), which implements the boundary alignment between the RB bundle and the PRG.
  • the embodiment of the present application provides a solution, which can be seen in FIG. 4c.
  • the number of columns of the interleaver can be calculated by using rounding down, as follows.
  • C is the number of columns of the interleaver and R is the number of rows of the interleaver (taken 2 in the current protocol).
  • Indicates the size of BWP i Indicates the resource block start index of BWP i, and L is the size of the RB bundle.
  • VRB (6*2*4) performs interleaving mapping. For two VRBs (VRB48 and VRB49) that do not participate in the interleaving mapping, they can be placed directly behind RB bundle11. In this way, the index of the PRB corresponding to the index of the VRB is obtained, as shown in Table 3, which is an example of the index part of the PRB corresponding to the index of the VRB.
  • Table 3 Example of the index part of the PRB corresponding to the index of the VRB
  • each RB bundle participating in the interleaving mapping includes 4 VRBs, it is possible to effectively avoid some RB bundles participating in the interleaving mapping in the prior art (especially RB bundles mapped to intermediate locations, such as There is a technical problem in the RB bundle 12) that the RB bundle and the PRG are not aligned, resulting in inaccurate channel estimation.
  • the third embodiment of the present application provides a solution for implementing complete alignment of the RB bundle and the PRG, and solves the problem that the RB bundle0 and the PRG0 are not aligned in the prior art, and the RB bundle and the RB bundle are present in some RB bundles participating in the interleaving mapping.
  • the technical problem of PRG misalignment can be seen in Figure 4d.
  • the number of RBs that need to be filled in RB bundle 0 can be determined according to the number of PRBs included in PRG0 and the number of VRBs included in RB bundle 0.
  • RB bundle 0 contains Where X is the RB used for padding and L is the size of the RB bundle.
  • the number of PRBs included in PRG0 is 3, and the number of VRBs included in RB bundle 0 is 4.
  • 1 RB needs to be filled in RB bundle 0, as shown in Figure 4d.
  • Schematic diagram, RB bundle 0 contains (X, RB0, RB1, RB2).
  • the RBs included in the remaining RB bundle i are as follows:
  • RB bundle 1 contains (RB3, RB4, RB5, RB6).
  • the number of columns of the interleaver can be calculated by rounding down, as shown in the following formula:
  • C is the number of columns of the interleaver and R is the number of rows of the interleaver (taken 2 in the current protocol).
  • Indicates the size of BWP i Indicates the resource block start index of BWP i
  • L is the size of the RB bundle. For those that do not participate in the interleaving mapping VRBs correspond to the last of the BWP PRB.
  • the size of the BWP is 50
  • the starting index of the resource block of the BWP is 25
  • the size of the RB bundle is 4, and the number of rows of the interleaver is 2, the number of columns of the interleaver is (50+1)/( 4*2)
  • the rounded down value is 6.
  • 48 VRBs (6*2*4) are required for interleaving mapping.
  • 3 VRBs VRB47, VRB48, and VRB49
  • the index of the PRB corresponding to the index of the VRB is obtained, as shown in Table 4, which is an example of the index part of the PRB corresponding to the index of the VRB.
  • PRG0 since PRG0 includes only 3 PRBs, and RB bundle 0 is filled with 1 RB, it also includes 3 VRBs, so that the index of VRB in RB bundle 0 (0/1/) 2) Aligning the RB bundle0 and PRG0 with the index of the PRB in the PRG0 (0/1/2), and because the RB bundles participating in the interleaving mapping include 4 VRBs,
  • the index of the VRB in the RB bundle1 to the RB bundle11 respectively corresponds to the index of the PRB in the PRG1 to the PRG11
  • the three VRBs that do not participate in the interleaving mapping respectively correspond to the indexes of the three PRBs in the PRG12, and the RB bundle and the PRG are completely aligned.
  • the bundle contains four VRBs, which effectively avoids the problem that the RB bundles and the PRGs are not aligned due to the existence of the padding RBs, and the RB bundles and the PRGs are not aligned.
  • the scheme in the second embodiment is combined so that the RB bundle and the PRG can be completely aligned.
  • the terminal device determines the index of the PRB corresponding to the index of the VRB by using the solution in the third embodiment.
  • the length of the target VRB is 6, and the index of the target VRB of the terminal device is 0, 1, 2, 3, 4, and 5.
  • the terminal device indexes the PRB corresponding to the index of the target VRB according to the index of the target VRB and the index of the determined VRB.
  • the index of the PRB corresponding to the index of the target VRB is 0, 1, 2, 23, 24, and 25, and the uplink data can be sent to the network device on the PRB0, the PRB 1, the PRB 2, the PRB 23, the PRB 24, and the PRB 25.
  • the terminal device sends the uplink data to the network device. Therefore, the operation performed by the terminal device is interleaving. If the terminal device receives the downlink data from the network device, the operation performed by the terminal at this time is deinterleaving.
  • the specific implementation is the same as the interleaving process described above, and is not described here.
  • the embodiment of the present application further provides a wireless communication device, and the specific implementation of the wireless communication device can refer to the foregoing method flow.
  • FIG. 5 is a schematic structural diagram of a wireless communication apparatus according to an embodiment of the present disclosure. As shown in FIG. 5a, the wireless communication apparatus 500 includes:
  • the processing unit 501 is configured to determine, according to the resource block start index of the bandwidth part and the size of the resource block bundle, an index of the virtual resource block in the multiple resource block bundles;
  • the mapping unit 502 is configured to perform an interlace mapping on the multiple resource block bundles to determine an index of the physical resource block corresponding to the index of the virtual resource block.
  • the plurality of resource block bundles include an initial resource block bundle of the interlace map, and the number of virtual resource blocks in the initial resource block bundle is smaller than a size of the resource block bundle.
  • the number of virtual resource blocks included in the initial resource block bundle is equal to:
  • the processing unit 501 is specifically configured to determine, according to the following formula, the number of virtual resource blocks included in the initial resource block bundle:
  • n is the number of virtual resource blocks included in the initial resource block bundle
  • L is the size of the resource block bundle.
  • the processing unit 501 is further configured to process high layer signaling, where the high layer signaling is used to indicate a size of the resource block bundle, where the size of the resource block bundle is equal to the resource block bundle The number of resource blocks contained within.
  • the bandwidth portion includes the multiple resource block bundles and at least one remaining resource block, and the remaining resource blocks are not subjected to the interlace mapping;
  • the mapping unit 502 is further configured to directly map an index of the virtual resource block corresponding to the remaining resource block to an index of the physical resource block.
  • the transceiver unit 503 may also be included, as shown in FIG. 5b.
  • the processing unit 501 processes the high-level command, specifically, the processing unit 501 generates a high-level command, and sends the high-level command to the terminal device; and if the wireless communication device is the terminal device, the transceiver unit is configured to receive from the network device.
  • the higher layer instruction is parsed by the processing unit 501 for higher layer signaling.
  • the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • the functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • FIG. 6 is a schematic structural diagram of still another wireless communication apparatus according to an embodiment of the present disclosure, where the wireless communication apparatus may be a terminal device or a network device.
  • the wireless communication device 600 includes: a communication module 601, a processor 602;
  • the communication module 601 is configured to perform communication interaction with other devices.
  • the communication module 601 can be an RF circuit, a Wi-Fi module, a communication interface, a Bluetooth module, or the like.
  • the processor 602 is configured to implement the step of the foregoing method embodiments.
  • the communication device 600 may further include: a memory 604, configured to store a program or the like.
  • the program can include program code, the program code including instructions.
  • Memory 604 may include RAM and may also include non-volatile memory, such as at least one disk storage.
  • the processor 602 executes the application stored in the memory 604 to implement the above functions.
  • a communication connection is made between the communication module 601, the processor 602, and the memory 604.
  • the communication module 601, the processor 602, and the memory 604 may be connected to each other through a bus 603; the bus 603 may be a PCI bus or an EISA bus or the like.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)
  • Embodiments of the invention are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that instructions are executed by a processor of a computer or other programmable data processing device Means for implementing the functions specified in one or more flows of the flowchart or in a block or blocks of the flowchart.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种无线通信装置及无线通信方法，该无线通信装置包括：处理单元，用于根据带宽部分的资源块起始索引和资源块束的大小，确定多个资源块束内的虚拟资源块的索引；映射单元，用于对多个资源块束作交织映射，以确定虚拟资源块的索引对应的物理资源块的索引；其中，多个资源块束包括交织映射的初始资源块束，初始资源块束内虚拟资源块的个数小于资源块束的大小。本申请实施例中，由于初始资源块束内虚拟资源块的个数可以小于资源块束的大小，从而使得初始资源块束内虚拟资源块的个数可以根据需要进行灵活设置，以便于实现初始资源块束和带宽部分的初始预编码资源块组对齐，有效提高提高数据传输性能。

Description

一种无线通信装置及无线通信方法
本申请要求在2018年1月12日提交中华人民共和国知识产权局、申请号为201810032375.4、发明名称为“一种无线通信装置及无线通信方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，特别涉及一种无线通信装置及无线通信方法。
背景技术
资源块(resource block，RB)被用于描述特定物理信道与资源元素之间的映射关系。无线通信系统中将RB划分为物理资源块(physical resource block，PRB)和虚拟资源块(virtual resource block，VRB)。在进行下行(或者上行)数据传输时，下行(或者上行)传输资源是基于VRB进行分配，然后再将其映射到PRB上。其中，VRB到PRB的映射包括两种类型，分别为非交织映射和交织映射。对于非交织映射来说，VRB被直接地映射到PRB；而对于交织映射来说，需要先进行交织，然后将交织后的VRB映射到PRB上。目前，针对于交织映射，如何实现VRB映射到PRB的过程，仍需进一步研究。
发明内容
本申请提供一种无线通信装置及无线通信方法，用于提供一种VRB映射到PRB的实现方案。
第一方面，本申请实施例提供一种无线通信装置，包括：
处理单元，用于根据带宽部分的资源块起始索引和资源块束的大小，确定多个资源块束内的虚拟资源块的索引；
映射单元，用于对所述多个资源块束作交织映射，以确定所述虚拟资源块的索引对应的物理资源块的索引；
其中，所述多个资源块束包括所述交织映射的初始资源块束，所述初始资源块束内虚拟资源块的个数小于所述资源块束的大小。
本申请实施例中，由于初始资源块束内虚拟资源块的个数可以小于资源块束的大小，从而使得初始资源块束内虚拟资源块的个数可以根据需要进行灵活设置，以便于实现初始资源块束和带宽部分的初始预编码资源块组对齐，有效提高信道估计的准确性，进而提高数据传输性能。
需要说明的是：(1)初始资源块束内虚拟资源块的个数也可以等于所述资源块束的大小；(2)映射单元对所述多个资源块束作交织映射可以包括对所述多个资源块束作交织映射或解交织映射，具体不做限定。(3)无线通信装置可以是指终端设备或者终端设备内部的芯片，或者，无线通信装置也可以是指网络设备或者网络设备内部的芯片。
在一种可能的设计中，所述初始资源块束中包含的虚拟资源块的个数等于：
所述带宽部分的资源块起始索引除以所述资源块束的大小所得余数，与所述资源块束的大小的绝对差值。
在一种可能的设计中，所述处理单元，具体用于根据如下公式确定所述初始资源块束 中包含的虚拟资源块的个数：
Figure PCTCN2019071019-appb-000001
其中，n为初始资源块束中包含的虚拟资源块的个数，L为所述资源块束的大小，
Figure PCTCN2019071019-appb-000002
为所述带宽部分的资源块起始索引。
在一种可能的设计中，所述处理单元还用于处理高层信令，所述高层信令用于指示所述资源块束的大小，所述资源块束的大小等于所述资源块束内包含的资源块的个数。
此处，若无线通信装置为网络设备，则还包括收发单元，此处处理单元处理高层指令具体为处理单元生成高层指令，并通过收发单元发送给终端设备；若无线通信装置为终端设备，则还包括收发单元，收发单元用于从网络设备接收高层指令，由处理单元对高层信令进行解析。
在一种可能的设计中，所述带宽部分包括所述多个资源块束以及至少一个剩余资源块，所述剩余资源块未经过所述交织映射；
所述映射单元，还用于将所述剩余资源块对应的虚拟资源块的索引直接映射为物理资源块的索引。
第二方面，本申请实施例提供一种无线通信方法，所述方法由无线通信装置执行，其特征在于，包括：
根据带宽部分的资源块起始索引和资源块束的大小，确定多个资源块束内的虚拟资源块的索引；
对所述多个资源块束作交织映射，以确定所述虚拟资源块的索引对应的物理资源块的索引；
其中，所述多个资源块束包括所述交织映射的初始资源块束，所述初始资源块束内虚拟资源块的个数小于所述资源块束的大小。
在一种可能的设计中，所述初始资源块束中包含的虚拟资源块的个数等于：
所述带宽部分的资源块起始索引除以所述资源块束的大小所得余数，与所述资源块束的大小的绝对差值。
在一种可能的设计中，所述根据带宽部分的资源块起始索引和资源块束的大小，确定多个资源块束内的虚拟资源块的索引，包括：
根据如下公式确定所述初始资源块束中包含的虚拟资源块的个数：
Figure PCTCN2019071019-appb-000003
其中，n为初始资源块束中包含的虚拟资源块的个数，L为所述资源块束的大小，
Figure PCTCN2019071019-appb-000004
为所述带宽部分的资源块起始索引。
在一种可能的设计中，还包括：
处理高层信令，所述高层信令用于指示所述资源块束的大小，所述资源块束的大小等于所述资源块束内包含的资源块的个数。
在一种可能的设计中，所述带宽部分包括所述多个资源块束以及至少一个剩余资源块，所述剩余资源块未经过所述交织映射；
所述方法还包括：
将所述剩余资源块对应的虚拟资源块的索引直接映射为物理资源块的索引。
第三方面，本申请实施例提供一种无线通信装置，包括：
处理单元和存储单元，其中；
所述存储单元用于存储计算机指令，当所述计算机指令在所述处理单元中运行时，使得所述无线通信装置执行第二方面中所述的方法流程。
此处，存储单元可以是易失性存储器，即临时存储，断电数据即丢失，例如动态随机读取存储器(dynamic random access memory，DRAM)或缓存器(cache)或处理器中的寄存器(registers)。
第四方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储了程序代码，所述程序代码被无线通信装置执行时，使得所述无线通信装置执行第二方面中所述的方法流程。
第五方面，本申请实施例提供一种计算机程序产品，所述计算机程序产品包含的程序代码被无线通信装置执行时，使得所述无线通信装置执行第二方面中所述的方法流程。
在一种可能的设计中，所述初始资源块束的大小等于所述资源块束的大小，所述初始资源块束包括至少一个填充资源块以及至少一个虚拟资源块；或者，
所述初始资源块束的大小等于所述初始资源块束包括的虚拟资源块的个数。
在一种可能的设计中，所述无线通信装置为半导体芯片，所述半导体芯片被设置在终端或基站内。
在一种可能的设计中，所述无线通信装置为终端，所述无线通信装置还包括接收单元，所述接收单元用于接收高层信令，所述高层信令用于指示所述资源块束的大小。
在一种可能的设计中，所述无线通信装置为基站，所述无线通信装置还包括发送单元，所述发送单元用于发送高层信令，所述高层信令用于指示所述资源块束的大小。
附图说明
图1为本申请适用的一种系统架构示意图；
图2为网络设备和终端设备的一种数据传输示意图；
图3a为BWP上的PRG示意图；
图3b为本申请实施例提供的一种无线通信方法对应的流程示意图；
图4a为现有技术中终端设备确定VRB的索引对应的PRB的索引的具体过程示意图；
图4b为本申请实施例一提供的终端设备确定VRB的索引对应的PRB的索引的具体过程示意图；
图4c为本申请实施例二提供的终端设备确定VRB的索引对应的PRB的索引的具体过程示意图；
图4d为本申请实施例三提供的终端设备确定VRB的索引对应的PRB的索引的具体过程示意图；
图5a为本申请实施例提供的一种无线通信装置的结构示意图；
图5b为本申请实施例提供的又一种无线通信装置的结构示意图；
图6为本申请实施例提供的又一种无线通信装置的结构示意图。
具体实施方式
下面结合说明书附图对本申请实施例进行具体说明。
图1为本申请实施例适用的一种系统架构示意图。如图1所示，该系统架构中包括网络设备101、一个或多个终端设备，比如图1所示的终端设备1021、终端设备1022、终端 设备1023。网络设备101可通过网络向终端设备1021、终端设备1022、终端设备1023传输下行数据，终端设备1021、终端设备1022、终端设备1023可通过网络向网络设备101传输上行数据。
本申请中，网络设备可以为基站设备(base station，BS)。基站设备也可称为基站，是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(base transceiver station，BTS)和基站控制器(base station controller，BSC)，3G网络中提供基站功能的设备包括节点B(NodeB)和无线网络控制器(radio network controller，RNC)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在5G网络中提供基站功能的设备包括新无线节点B(New Radio NodeB，gNB)，集中单元(centralized unit，CU)，分布式单元(distributed unit，DU)和新无线控制器。
终端设备是一种具有无线收发功能的设备，可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等。
本申请中主要以图1所示意的系统架构为例进行介绍，但并不限于此。
上述系统架构适用的通信系统包括但不限于：时分双工-长期演进(time division duplexing-long term evolution，TDD LTE)、频分双工-长期演进(frequency division duplexing-long term evolution，FDD LTE)、长期演进-增强(long term evolution-advanced，LTE-A)，以及未来演进的各种无线通信系统(例如，5G NR系统)。
基于图1所示的系统架构，图2为网络设备和终端设备的一种数据传输示意图，如图2所示，包括：
步骤201，网络设备向终端设备发送第一信令，所述第一信令可以包括为终端设备分配的带宽部分(bandwidth part，BWP)的大小以及所述BWP的资源块起始索引。
此处，第一信令可以为广播消息或RRC信令等，具体不做限定。
所述BWP的大小具体可以为所述BWP中包含的PRB的数量，比如，BWP的大小为50PRBs。所述BWP的资源块起始索引具体可以为所述BWP相对于公共资源块(common resource block，CRB)的偏移量(可以以PRB为偏移量的单位)，比如，BWP相对于CRB0的偏移量为25，则所述BWP的资源块起始索引为25。
进一步地，所述第一信令中还可以包括预设的预编码资源块组(precoding resource block group，PRG)的大小，其中，预设的PRG的大小可以为2、4或者调度带宽(scheduled BW)，本申请实施例中主要以预设的PRG的大小为4为例进行描述。
需要说明的是，BWP的大小、所述BWP的资源块起始索引和预设的PRG的大小可以由一条信令来发送，或者，也可以通过多条信令来发送，具体不做限定。
步骤202，终端设备接收第一信令，并根据所述第一信令确定BWP中的各个PRB的PRG分组情况。
具体来说，可以根据BWP的资源块起始索引和RB bundle的大小来确定第一个PRG(PRG0)中的PRB的个数，具体可参见如下公式：
Figure PCTCN2019071019-appb-000005
其中，m1为第一个PRG(即PRG0，或者也可以称为初始PRG)中的PRB的个数，
Figure PCTCN2019071019-appb-000006
为BWP i的资源块起始索引，P′ BWP,i为PRG的大小(可以由高层配置，比如4)。
可以根据BWP的资源块起始索引、BWP的大小和RB bundle的大小来确定最后一个PRG中的PRB的个数，具体可参见如下公式：
Figure PCTCN2019071019-appb-000007
其中，m2为最后一个PRG中的PRB的个数，
Figure PCTCN2019071019-appb-000008
为BWP i的大小，
Figure PCTCN2019071019-appb-000009
为BWP i的资源块起始索引，P′ BWP,i为PRG的大小。
在一个示例中，PRG的大小为4，BWP的大小为50PRBs，所述BWP的资源块起始索引为25，则所述BWP的第一个PRG的大小为4-25mod4＝3，最后一个PRG的大小为(25+50)mod4＝3，其余PRG的大小为4。参见图3a所示，为所述BWP上的PRG示意图。
步骤203，终端设备确定是否采用资源分配方式1，若是，则执行步骤204，若否，则按照现有流程执行，此处不再赘述。
具体来说，终端设备确定是否采用资源分配方式1的方式可以有多种，比如，终端设备根据网络设备的信令或者是否接收回退(fallback)DCI确定是否采用资源分配方式1。示例性地，若终端设备接收到第二信令，所述第二信令指示所述终端设备采用资源分配方式1，则终端设备确定采用资源分配方式1，其中，第二信令可以为高层信令，或者物理层信令(比如，调度DCI中的频域资源分配信息)；或者，若终端设备确定接收回退DCI，则确定采用资源分配方式1。
步骤204，终端设备从接收到的DCI中读取资源指示值(resource indication value，RIV)，所述RIV用于指示目标VRB的起始索引和目标VRB的长度。
此处，目标VRB即为分配给所述终端设备的VRB。
步骤205，终端设备根据VRB的起始索引和VRB的长度以及VRB的索引对应的PRB的索引确定目标VRB的索引对应的PRB的索引。
步骤206，终端设备根据目标VRB的索引对应的PRB的索引，和所述网络设备进行数据传输。
具体来说，终端设备可以根据目标VRB的索引对应的PRB的索引，在对应的PRB上向网络设备发送上行数据或者接收网络设备发送的下行数据。
针对于上述流程，以终端设备向网络设备发送上行数据为例，终端设备需要先确定出VRB的索引对应的PRB的索引，进而获取到目标VRB的索引对应的PRB的索引，以便于发送上行数据。
参见图4a，为现有技术中终端设备确定VRB的索引对应的PRB的索引的具体过程示意图。如图4a所示，针对于交织的VRB-to-PRB映射，交织映射的最小单元为资源块束(RB bundle)，RB bundle的大小可以和PRG的大小相同或者不相同，此处以RB bundle的大小可以和PRG的大小相同为例，RB bundle的大小和PRG的大小均为4，RB bundle i由RB{iL,iL+1,...,iL+L-1}组成(其中L为RB bundle的大小)，比如RB bundle 0由 RB0、RB1、RB2、RB3组成，RB bundle 1由RB4、RB5、RB6、RB7组成。
如图4a所示，交织映射采用的是一个列进行出的交织器，当BWP的大小为50，交织器的行数为2(本申请实施例中仅以交织器的行数为2为例，也可以为其它值，具体不做限定)，则交织器的列数为50/(4*2)向上取整后的值即为7，此时共需要56个VRB(7*2*4)。然而由于共有50VRBs，为实现交织过程，需要填充6个RB，图4a所示意的RB50至RB55为填充RB，其中RB50和RB51填充在RB bundle 12中，RB52和RB55填充在RB bundle13中。通过交织映射以及去除填充RB，即可得到VRB的索引对应的PRB的索引，如表1所示，为VRB的索引对应的PRB的索引部分示例。
表1：VRB的索引对应的PRB的索引部分示例
Figure PCTCN2019071019-appb-000010
根据表1可以看出，由于PRG0中仅包括有3个PRB，因此RB bundle 0中的VRB的索引(0/1/2/3)分别对应PRG0中的PRB的索引(0/1/2)和PRG1中的PRB的索引(3)，进而导致RB bundle和PRG边界不对齐(即RB bundle0和PRG0不对齐)。
基于此，图3b为本申请实施例提供一种无线通信方法所对应的流程示意图，如图3b所示，该方法包括：
步骤301，根据带宽部分的资源块起始索引和资源块束的大小，确定多个资源块束内的虚拟资源块的索引；
步骤302，对所述多个资源块束作交织映射，以确定所述虚拟资源块的索引对应的物理资源块的索引；
其中，所述多个资源块束包括所述交织映射的初始资源块束，所述初始资源块束内虚拟资源块的个数小于所述资源块束的大小。
本申请实施例中，由于初始资源块束内虚拟资源块的个数可以小于资源块束的大小，从而使得初始资源块束内虚拟资源块的个数可以根据需要进行灵活设置，以便于实现初始资源块束和带宽部分的初始预编码资源块组对齐，有效提高信道估计的准确性，进而提高数据传输性能。
下面结合具体实施例对本申请实施例中无线通信方法进行描述。
实施例一
本申请实施例一提供的一种方案，可参见图4b所示，用于解决RB bundle和PRG边界不对齐的技术问题。具体来说，可以根据带宽部分的资源块起始索引和资源块束的大小确定初始资源块束中包含的虚拟资源块的个数，进而根据初始资源块束中包含的虚拟资源块的个数确定初始资源块束中包含的虚拟资源块的索引。
一种可能的实现方式中，所述初始资源块束中包含的虚拟资源块的个数等于所述带宽部分的资源块起始索引除以所述资源块束的大小所得余数，与所述资源块束的大小的绝对差值。在一个示例中，可以根据如下公式确定所述初始资源块束中包含的虚拟资源块的个 数：
Figure PCTCN2019071019-appb-000011
其中，n为初始资源块束(即RB bundle 0)中包含的虚拟资源块的个数，L为RB bundle的大小，
Figure PCTCN2019071019-appb-000012
为BWP i的资源块起始索引。
在另一个示例中，可以根据如下公式确定所述初始资源块束中包含的虚拟资源块的个数：
Figure PCTCN2019071019-appb-000013
其中，n为初始资源块束(即RB bundle 0)中包含的虚拟资源块的个数，L为RB bundle的大小，
Figure PCTCN2019071019-appb-000014
为BWP i的资源块起始索引。
进而，可以根据RB bundle 0中包含的虚拟资源块的个数和RB bundle的大小，确定需要在RB bundle 0中填充的RB的个数。填充后，RB bundle 0包含
Figure PCTCN2019071019-appb-000015
其中X为填充RB(padding)，L为RB bundle的大小，
Figure PCTCN2019071019-appb-000016
比如，PRG0包括的PRB的个数为3，RB bundle 0中包括的VRB的个数为4，此时，需要在RB bundle 0中填充1个RB，本申请实施例对于填充的位置不做限定，如图4b所示，为一种填充后的示意图，RB bundle 0包含(X，RB0，RB1，RB2)。
此处，可以理解为初始资源块束的大小等于所述资源块束的大小，所述初始资源块束包括至少一个填充资源块以及至少一个虚拟资源块。也就是说，可以认为上述示例中的RB bundle 0的大小为4，其包括一个填充资源块(即X)和3个虚拟资源块(即RB0，RB1，RB2)。或者，也可以理解为初始资源块束的大小等于所述初始资源块束包括的虚拟资源块的个数，也就是说，可以认为上述示例中的RB bundle 0的大小仅取决于RB bundle 0中所包含的虚拟资源块的个数，因此RB bundle 0的大小为3。
通过交织映射以及去除填充RB，即可得到VRB的索引对应的PRB的索引，如表2所示，为VRB的索引对应的PRB的索引部分示例。
表2：VRB的索引对应的PRB的索引部分示例
Figure PCTCN2019071019-appb-000017
根据表2可以看出，由于PRG0中仅包括有3个PRB，而RB bundle 0中由于填充有1个RB，因此也包括3个VRB，从而通过修改交织器的填充规则，使得RB bundle 0中VRB的索引(0/1/2)分别对应PRG0中的PRB的索引(0/1/2)，实现RB bundle和PRG的边界对齐。
实施例二
针对于现有技术中的方案，由于RB bundle 12中包括两个填充RB，在去除填充RB后，RB bundle 12中仅包括两个VRB，而除了PRG0和PRG12之外的PRG中均包括有4个PRB，此时，由于RB bundle 12位于中间位置，从而会使得RB bundle 12之后的RB bundle和PRG不对齐。为解决这一问题，本申请实施例提供一种方案，可参见图4c所示。
具体来说，现有技术中的方案在计算交织器的列数时，采用的是向上取整的方式，本申请实施例中可采用向下取整的方式来计算交织器的列数，如下述公式：
Figure PCTCN2019071019-appb-000018
其中，C是交织器的列数，R是交织器的行数(目前协议中取2)，
Figure PCTCN2019071019-appb-000019
表示BWP i的大小，
Figure PCTCN2019071019-appb-000020
表示BWP i的资源块起始索引，L为RB bundle的大小。
根据上述方式，当BWP的大小为50，交织器的行数为2，则交织器的列数为50/(4*2)向下取整后的值即为6，此时共需要48个VRB(6*2*4)进行交织映射，对于没有参与交织映射的2个VRB(VRB48和VRB49)可直接放在RB bundle11的后面。如此，即可得到VRB的索引对应的PRB的索引，如表3所示，为VRB的索引对应的PRB的索引部分示例。
表3：VRB的索引对应的PRB的索引部分示例
Figure PCTCN2019071019-appb-000021
根据表3可以看出，由于参与交织映射的各个RB bundle中均包含有4个VRB，从而可以有效避免现有技术中参与交织映射的一些RB bundle(尤其是映射到中间位置的RB bundle，如RB bundle12)中存在填充RB，使得RB bundle和PRG不对齐而导致信道估计不准确的技术问题。
实施例三
本申请实施例三提供一种方案，用于实现RB bundle和PRG的完全对齐，同时解决现有技术中RB bundle0和PRG0不对齐以及由于参与交织映射的一些RB bundle中存在填充RB使得RB bundle和PRG不对齐的技术问题，可参见图4d所示。
具体来说，可根据PRG0中包括的PRB的个数和RB bundle 0中包括的VRB的个数，确定需要在RB bundle 0中填充的RB的个数。填充后，RB bundle 0包含
Figure PCTCN2019071019-appb-000022
其中X为用于填充的RB，L为RB bundle的大小，
Figure PCTCN2019071019-appb-000023
比如，PRG0包括的PRB的个数为3，RB bundle 0中包括的VRB的个数为4，此时，需要在RB bundle 0中填充1个RB，如图4d所示，为一种填充后的示 意图，RB bundle 0包含(X，RB0，RB1，RB2)。其余的RB bundle i中包含的RB如下：
Figure PCTCN2019071019-appb-000024
比如，RB bundle 1中包含(RB3，RB4，RB5，RB6)。
进一步地，填充后可采用向下取整的方式来计算交织器的列数，如下述公式：
Figure PCTCN2019071019-appb-000025
其中，C是交织器的列数，R是交织器的行数(目前协议中取2)，
Figure PCTCN2019071019-appb-000026
表示BWP i的大小，
Figure PCTCN2019071019-appb-000027
表示BWP i的资源块起始索引，L为RB bundle的大小。对于没有参与交织映射的
Figure PCTCN2019071019-appb-000028
个VRB对应于该BWP的最后
Figure PCTCN2019071019-appb-000029
个PRB。
举个例子，当BWP的大小为50，BWP的资源块起始索引为25，RB bundle的大小为4，交织器的行数为2，则交织器的列数为(50+1)/(4*2)向下取整后的值即为6，此时共需要48个VRB(6*2*4)进行交织映射，对于没有参与交织映射的3个VRB(VRB47、VRB48和VRB49)可直接放在RB bundle11的后面。如此，即可得到VRB的索引对应的PRB的索引，如表4所示，为VRB的索引对应的PRB的索引部分示例。
表4：VRB的索引对应的PRB的索引部分示例
Figure PCTCN2019071019-appb-000030
根据表4可以看出，由于PRG0中仅包括有3个PRB，而RB bundle 0中由于填充有1个RB，因此也包括3个VRB，从而使得RB bundle 0中VRB的索引(0/1/2)分别对应PRG0中的PRB的索引(0/1/2)，实现RB bundle0和PRG0的对齐；且由于除RB bundle 0外，其它参与交织映射的RB bundle中均包括4个VRB，从而使得RB bundle1至RB bundle11中的VRB的索引分别对应PRG1至PRG11中的PRB的索引，没有参与交织映射的3个VRB分别对应PRG12中的3个PRB的索引，实现了RB bundle和PRG的完全对齐。
本申请实施例中，上述实施例一中，仅是修改交织器的填充规则，即在RB bundle 0填充相应数量的RB，而对现有技术中的交织器不做改变，从而实现RB bundle和PRG的边界对齐；上述实施例二中，通过修改交织器的列数(相比于现有技术中的交织器少1列)，从而可以无需在RB bundle填充RB，使得参与交织映射的各个RB bundle中均包含有4个VRB，有效避免由于存在填充RB而导致RB bundle中的VRB少于4个，进而使得RB bundle和PRG不对齐的问题；上述实施例三中，通过将实施例一和实施例二中的方案进行结合，从而能够使得RB bundle和PRG完全对齐。
基于上述描述，以终端设备使用实施例三中的方案确定VRB的索引对应的PRB的索引为例，在图2所示意的流程中，若终端设备获取到的目标VRB的起始索引为0，目标VRB的长度为6，则终端设备的目标VRB的索引为0、1、2、3、4、5，进一步地，终端设备根据目标VRB的索引和确定出的VRB的索引对应的PRB的索引，可以得到目标VRB 的索引对应的PRB的索引为0、1、2、23、24、25，进而可以在PRB0、PRB 1、PRB 2、PRB23、PRB24、PRB25上向网络设备发送上行数据。
需要说明的是，上述是以终端设备向网络设备发送上行数据为例，因此终端设备所执行的操作为交织，若终端设备从网络设备接收下行数据，则此时终端所执行的操作为解交织，具体实现与上述所描述的交织过程为同一发明思路，此处不再赘述。
针对于上述方法流程，本申请实施例还提供一种无线通信装置，该无线通信装置的具体实现可参照上述方法流程。
图5a为本申请实施例提供的一种无线通信装置的结构示意图，如图5a所示，无线通信装置500包括：
处理单元501，用于根据带宽部分的资源块起始索引和资源块束的大小，确定多个资源块束内的虚拟资源块的索引；
映射单元502，用于对所述多个资源块束作交织映射，以确定所述虚拟资源块的索引对应的物理资源块的索引；
其中，所述多个资源块束包括所述交织映射的初始资源块束，所述初始资源块束内虚拟资源块的个数小于所述资源块束的大小。
在一种可能的设计中，所述初始资源块束中包含的虚拟资源块的个数等于：
所述带宽部分的资源块起始索引除以所述资源块束的大小所得余数，与所述资源块束的大小的绝对差值。
在一种可能的设计中，所述处理单元501，具体用于根据如下公式确定所述初始资源块束中包含的虚拟资源块的个数：
Figure PCTCN2019071019-appb-000031
其中，n为初始资源块束中包含的虚拟资源块的个数，L为所述资源块束的大小，
Figure PCTCN2019071019-appb-000032
为所述带宽部分的资源块起始索引。
在一种可能的设计中，所述处理单元501还用于处理高层信令，所述高层信令用于指示所述资源块束的大小，所述资源块束的大小等于所述资源块束内包含的资源块的个数。
在一种可能的设计中，所述带宽部分包括所述多个资源块束以及至少一个剩余资源块，所述剩余资源块未经过所述交织映射；
所述映射单元502，还用于将所述剩余资源块对应的虚拟资源块的索引直接映射为物理资源块的索引。
本申请实施例中，若上述无线通信装置为终端设备或者网络设备，则还可以包括收发单元503，参见图5b所示。若无线通信装置为网络设备，则处理单元501处理高层指令具体为处理单元501生成高层指令，并通过收发单元发送给终端设备；若无线通信装置为终端设备，则收发单元用于从网络设备接收高层指令，由处理单元501对高层信令进行解析。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。在本申请的实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时， 可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
图6为本申请实施例提供的又一种无线通信装置的结构示意图，该无线通信装置可以终端设备或者网络设备。如图6所示，无线通信装置600包括：通信模块601、处理器602；
所述通信模块601，用于与其他设备进行通信交互。
所述通信模块601可以为RF电路、Wi-Fi模块、通信接口、蓝牙模块等。
所述处理器602，用于实现上述方法实施例的步骤流程。
可选地，通信装置600还可以包括：存储器604，用于存放程序等。具体地，程序可以包括程序代码，该程序代码包括指令。存储器604可能包含RAM，也可能还包括非易失性存储器，例如至少一个磁盘存储器。处理器602执行存储器604所存放的应用程序，实现上述功能。
一种可能的方式中，通信模块601、处理器602和存储器604之间通信连接。例如，通信模块601、处理器602和存储器604可以通过总线603相互连接；总线603可以是PCI总线或EISA总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图6中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。
本发明实施例是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (25)

  1. 一种无线通信装置，其特征在于，包括：
    处理单元，用于根据带宽部分的资源块起始索引和资源块束的大小，确定初始资源块束内的虚拟资源块的个数，其中所述初始资源块束内的虚拟资源块的个数小于所述资源块束的大小；
    映射单元，用于将所述初始资源块束内的虚拟资源块映射为物理资源块。
  2. 根据权利要求1所述的装置，其特征在于：
    所述初始资源块束包含的虚拟资源块的个数等于：
    所述带宽部分的资源块起始索引除以所述资源块束的大小所得余数，与所述资源块束的大小的绝对差值。
  3. 根据权利要求1或2所述的装置，其特征在于：
    所述处理单元，用于确定所述初始资源块束包含的虚拟资源块的个数n，所述n满足如下公式：
    Figure PCTCN2019071019-appb-100001
    其中，L为所述资源块束的大小，
    Figure PCTCN2019071019-appb-100002
    为所述带宽部分的资源块起始索引。
  4. 根据权利要求1至3中任一项所述的装置，其特征在于：
    所述处理单元还用于处理高层信令，所述高层信令用于指示所述资源块束的大小。
  5. 根据权利要求1至4中任一项所述的装置，其特征在于：
    所述处理单元还用于处理第一信令，所述第一信令用于指示所述带宽部分的资源块起始索引。
  6. 根据权利要求1至5中任一项所述的装置，其特征在于：
    所述带宽部分包括所述初始资源块束以及至少一个剩余资源块；
    所述映射单元，还用于将所述至少一个剩余资源块对应的虚拟资源块直接映射为物理资源块。
  7. 根据权利要求1至6任一项所述的装置，其特征在于，所述处理单元，用于根据所述带宽部分的资源块起始索引和所述资源块束的大小，确定所述初始资源块束内的虚拟资源块的个数，包括：所述处理单元，用于根据所述带宽部分的资源块起始索引和所述资源块束的大小，确定所述初始资源块束内的虚拟资源块的索引。
  8. 根据权利要求1至7任一项所述的装置，其特征在于，所述映射单元，用于将所述初始资源块束内的虚拟资源块映射为物理资源块，包括：所述映射单元，用于将所述初始资源块束内的虚拟资源块的索引映射为物理资源块的索引。
  9. 根据权利要求1至8任一项所述的装置，其特征在于，所述初始资源块束被标识为资源块束0。
  10. 一种无线通信方法，所述方法由无线通信装置执行，其特征在于，包括：
    根据带宽部分的资源块起始索引和资源块束的大小，确定初始资源块束内的虚拟资源块的个数，其中所述初始资源块束内的虚拟资源块的个数小于所述资源块束的大小；
    将所述初始资源块束内的虚拟资源块映射为物理资源块。
  11. 根据权利要求10所述的方法，其特征在于：
    所述初始资源块束包含的虚拟资源块的个数等于：
    所述带宽部分的资源块起始索引除以所述资源块束的大小所得余数，与所述资源块束的大小的绝对差值。
  12. 根据权利要求10或11所述的方法，其特征在于：
    所述根据带宽部分的资源块起始索引和资源块束的大小，确定初始资源块束内的虚拟资源块的个数，包括：
    确定所述初始资源块束包含的虚拟资源块的个数n，所述n满足如下公式：
    Figure PCTCN2019071019-appb-100003
    其中，L为所述资源块束的大小，
    Figure PCTCN2019071019-appb-100004
    为所述带宽部分的资源块起始索引。
  13. 根据权利要求10至12任一项所述的方法，其特征在于，还包括：
    处理高层信令，所述高层信令用于指示所述资源块束的大小。
  14. 根据权利要求10至13任一项所述的方法，其特征在于，还包括：
    处理第一信令，所述第一信令用于指示所述带宽部分的资源块起始索引。
  15. 根据权利要求10至14任一项所述的方法，其特征在于：
    所述带宽部分包括所述初始资源块束以及至少一个剩余资源块；
    所述方法还包括：
    将所述至少一个剩余资源块对应的虚拟资源块直接映射为物理资源块。
  16. 根据权利要求10至15任一项所述的方法，其特征在于，根据带宽部分的资源块起始索引和资源块束的大小，确定初始资源块束内的虚拟资源块的个数，包括：根据所述带宽部分的资源块起始索引和所述资源块束的大小，确定所述初始资源块束内的虚拟资源块的索引。
  17. 根据权利要求10至16任一项所述的方法，其特征在于，将所述初始资源块束内的虚拟资源块映射为物理资源块，包括：将所述初始资源块束内的虚拟资源块的索引映射为物理资源块的索引。
  18. 根据权利要求10至17任一项所述的方法，其特征在于，所述初始资源块束被标识为资源块束0。
  19. 一种无线通信装置，其特征在于，包括：
    处理器和存储器，其中；
    所述存储器用于存储指令，当所述指令被所述处理器运行时，使得所述无线通信装置执行如权利要求10至18任一项所述的方法。
  20. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储了程序代码或指令，所述程序代码或指令被无线通信装置执行时，使得所述无线通信装置执行如权利要求10至18任一项所述的方法。
  21. 一种计算机程序产品，其特征在于，所述计算机程序产品包含的程序代码或指令被无线通信装置执行时，使得所述无线通信装置执行如权利要求10至18任一项所述的方法。
  22. 根据权利要求1至19中任一所述的装置或方法，其特征在于：
    所述初始资源块束的大小等于所述资源块束的大小，所述初始资源块束包括至少一个填充资源块以及至少一个虚拟资源块；或者，
    所述初始资源块束的大小等于所述初始资源块束包括的虚拟资源块的个数。
  23. 根据权利要求1至19中任一所述的装置或方法，其特征在于：
    所述无线通信装置为半导体芯片，所述半导体芯片被设置在终端或基站内。
  24. 根据权利要求1至18中任一所述的装置或方法，其特征在于：
    所述无线通信装置为终端，所述无线通信装置还包括接收单元，所述接收单元用于接收高层信令和/或第一信令，所述高层信令用于指示所述资源块束的大小，所述第一信令用于指示所述带宽部分的资源块起始索引。
  25. 根据权利要求1至18中任一所述的装置或方法，其特征在于：
    所述无线通信装置为基站，所述无线通信装置还包括发送单元，所述发送单元用于发送高层信令和/或第一信令，所述高层信令用于指示所述资源块束的大小，所述第一信令用于指示所述带宽部分的资源块起始索引。
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