CN113163441B - Communication method, terminal device and network device - Google Patents
Communication method, terminal device and network device Download PDFInfo
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- CN113163441B CN113163441B CN202110189029.9A CN202110189029A CN113163441B CN 113163441 B CN113163441 B CN 113163441B CN 202110189029 A CN202110189029 A CN 202110189029A CN 113163441 B CN113163441 B CN 113163441B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0289—Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The application provides a communication method, network equipment and terminal equipment. The method comprises the following steps: the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating the offset of the position of an nth frequency domain resource unit in a system bandwidth in the m frequency domain resource units included in the receiving bandwidth of the terminal equipment relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal equipment, the granularity of the frequency domain resource unit is the number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n; the network device sends second indication information to the terminal device, where the second indication information is used to indicate a relative position of at least one frequency domain resource unit and an nth frequency domain resource unit of a data channel scheduled to the terminal device, and the at least one frequency domain resource unit is located in the receiving bandwidth. The application can avoid or reduce the blockage among the frequency domain resource units scheduled for different terminal equipment.
Description
Technical Field
The present application relates to the field of communications, and more particularly, to a communication method, a terminal device, and a network device.
Background
In a long term evolution (Long Term Evolution, LTE) system, a bitmap (bitmap) in downlink control information (Downlink Control Information, DCI) of a physical downlink control channel (Physical Downlink Control Channel, PDCCH) may be used to indicate the location of a Resource Block group (Resource Block Group, RBG) allocated to a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH), where an RBG is a set of Resource Blocks (RBs) that are contiguous in the frequency domain. In LTE, since the system bandwidth is consistent with the User Equipment (UE) bandwidth, the size P of RBGs (i.e., the number of RBs included in each RBG) scheduled by the base station to the UE and the downlink system bandwidthThe correlation is shown in Table 1.
TABLE 1
For system bandwidthFor RBGs of size P, the number of RBGs is +.>The corresponding bitmap contains +.>Bits, each 1 bit corresponds to 1 RBG, the most significant bit can represent RBG 0, the least significant bit can represent RBG +.>For example, if a certain RBG is allocated to the PDSCH, a bit corresponding to the RBG in the bitmap is set to 1; otherwise set to 0.
For example, when the system bandwidth includes 25 RBs, the table look-up results in RBG size p=2, and the bitmap contains Each 1 bit represents two frequency-domain continuous RBs corresponding to 1 RBG. Let the bitmap encoding allocated to PDSCH resources be: 1001110100010, the PDSCH is allocated to RBG resources numbered 0, 3, 4, 5, 7, 11.
And in The fifth generation (The 5) th Generation, 5G) in New Radio (NR) systems, the bandwidth of the UE may be smaller than the system bandwidthIf the prior art is used with the starting position of the UE bandwidth as the starting position of the RBGs of the UE, congestion between RBGs scheduled by different UEs will be caused.
Disclosure of Invention
The application provides a communication method, terminal equipment and network equipment, which can avoid or reduce the blocking among frequency domain resource units scheduled for different terminal equipment.
In a first aspect, a communication method is provided, the method comprising:
the network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating the offset of the position of an nth frequency domain resource unit in a system bandwidth in the m frequency domain resource units included in the receiving bandwidth of the terminal equipment relative to the position of the receiving bandwidth in the system bandwidth, the offset is determined according to the granularity of the frequency domain resource unit of the terminal equipment, the granularity of the frequency domain resource unit is the number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n;
The network device sends second indication information to the terminal device, where the second indication information is used to indicate a relative position of at least one frequency domain resource unit of a data channel scheduled to the terminal device and the nth frequency domain resource unit, and the at least one frequency domain resource unit is located in the receiving bandwidth.
In the embodiment of the invention, the blocking between the frequency domain resource units scheduled for the data channels of different terminal devices can be avoided or reduced by indicating the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth to the terminal device and indicating the relative position of at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit to the terminal device.
In some possible implementations, the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units with different granularities, the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities, a position of a first frequency domain resource unit in the set in the system bandwidth is spaced from a position of a second frequency domain resource unit in the set in the system bandwidth by an integer multiple of the second frequency domain resource unit, the first frequency domain resource unit is a frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is a frequency domain resource unit with any other granularity in the set.
By making the positions of the frequency domain resource units with different granularities in the set where the frequency domain resource units of the terminal device are located in the system bandwidth meet the above conditions, the complexity of the network device for scheduling the frequency domain resource units for a plurality of terminal devices can be reduced.
In some possible implementations, the number of resource blocks included in the first frequency domain resource unit is a power of 2 to w times the number of resource blocks included in the second frequency domain resource unit, w being an integer greater than or equal to 0.
In some possible implementations, the number of resource blocks included in the first frequency domain resource unit is a least common multiple of the number of resource blocks included in the second frequency domain resource unit.
In some possible implementations, the first indication information includesAnd information bits, wherein P represents the number of resource blocks included in the frequency domain resource unit of the terminal equipment.
In some possible implementations, the second indication information includes a bitmap, each bit in the bitmap representing one frequency domain resource unit, the relative position being determined according to a position of at least one frequency domain resource unit of the data channel in the bitmap.
In a second aspect, there is provided a communication method, the method comprising:
the method comprises the steps that a terminal device receives first indication information sent by a network device, wherein the first indication information is used for indicating offset of a position of an nth frequency domain resource unit in a system bandwidth in m frequency domain resource units included in a receiving bandwidth of the terminal device relative to a position of the receiving bandwidth in the system bandwidth, the offset is determined according to granularity of the frequency domain resource units of the terminal device, the granularity of the frequency domain resource units is the number of resource blocks included in the frequency domain resource units, and m is an integer greater than or equal to n;
the terminal equipment receives second indication information sent by the network equipment, wherein the second indication information is used for indicating the relative position of at least one frequency domain resource unit of a data channel scheduled to the terminal equipment and the nth frequency domain resource unit, and the at least one frequency domain resource unit is positioned in the receiving bandwidth;
the terminal equipment determines at least one frequency domain resource unit scheduled to the data channel according to the offset and the relative position;
the terminal device communicates on the at least one frequency domain resource unit.
In the embodiment of the invention, the blocking between the frequency domain resource units scheduled for the data channels of different terminal devices can be avoided or reduced by indicating the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth to the terminal device and indicating the relative position of at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit to the terminal device.
In some possible implementations, the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units with different granularities, the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities, a position of a first frequency domain resource unit in the set in the system bandwidth is spaced from a position of a second frequency domain resource unit in the set in the system bandwidth by an integer multiple of the second frequency domain resource unit, the first frequency domain resource unit is a frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is a frequency domain resource unit with any other granularity in the set.
In some possible implementations, the number of resource blocks included in the first frequency domain resource unit is a power of 2 to w times the number of resource blocks included in the second frequency domain resource unit, w being an integer greater than or equal to 0.
In some possible implementations, the number of resource blocks included in the first frequency domain resource unit is a least common multiple of the number of resource blocks included in the second frequency domain resource unit.
In some possible implementations, the first indication information includesAnd information bits, wherein P represents the number of resource blocks included in the frequency domain resource unit of the terminal equipment.
In some possible implementations, the second indication information includes a bitmap, each bit in the bitmap representing one frequency domain resource unit, the relative position being determined according to a position of at least one frequency domain resource unit of the data channel in the bitmap.
In a third aspect, a network device is provided for implementing the method of the first aspect or any one of the possible implementations of the first aspect.
In particular, the network device may comprise means for performing the method of the first aspect or any one of the possible implementations of the first aspect.
In a fourth aspect, a terminal device is provided for implementing the method of the second aspect or any one of the possible implementations of the second aspect.
In particular, the terminal device may comprise means for performing the method of the second aspect or any one of the possible implementations of the second aspect.
In a fifth aspect, there is provided a network device comprising a processor, a transceiver and a memory, the processor, the transceiver and the memory being in communication with each other via an internal connection path, the memory being for storing instructions, the processor being for executing the instructions stored in the memory, and execution of the instructions stored in the memory causing the network device to perform the method of the first aspect or any one of the possible implementations of the first aspect.
In a sixth aspect, there is provided a terminal device comprising a processor, a transceiver, a memory and a bus system, the processor, the transceiver and the memory being in communication with each other via an internal connection path, the memory being for storing instructions, the processor being for executing the instructions stored in the memory, and execution of the instructions stored in the memory causing the terminal device to perform the method of the second aspect or any one of the possible implementations of the second aspect.
In a seventh aspect, a computer readable storage medium is provided, the computer readable storage medium storing a program, the program causing a network device to perform the method according to the first aspect or any one of the possible implementation manners of the first aspect.
In an eighth aspect, a computer readable storage medium is provided, where a program is stored, the program causing a terminal device to perform the method according to the second aspect or any one of the possible implementation manners of the second aspect.
Drawings
FIG. 1 is a resource block diagram of RBG scheduling;
FIG. 2 is a schematic diagram of an adjusted RBG schedule according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a communication method according to an embodiment of the invention;
FIG. 4 is a positional relationship of frequency domain resource units of different granularity in the same set in accordance with an embodiment of the present invention;
fig. 5 is a positional relationship of frequency domain resource units of different granularity in the same set according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
Fig. 9 is a schematic structural view of a terminal device according to another embodiment of the present application.
Detailed Description
The technical scheme of the application will be described below with reference to the accompanying drawings.
The network device in the embodiments of the present application may be a different device in different communication systems. For example, the network device may be a base station controller (Base Station Controller, BSC), a radio network controller (Radio Network Controller, RNC), an evolved Node B (eNB or e-NodeB) in an LTE system, a base station (NodeB) in a WCDMA system, or a base station gNB in a 5G system, or the like.
It should be understood that in the embodiment of the present application, the Terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), etc., and the Terminal may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), for example, the Terminal may be a Mobile phone (or referred to as a "cellular" phone), a computer with a communication function, etc., and for example, the Terminal device may also be a portable, pocket, hand-held, computer-built-in or vehicle-mounted Mobile device.
In the NR system, terminal devices having different bandwidth capabilities can flexibly access to the same system bandwidth, so that granularity of RBGs (i.e., size of RBGs) scheduled by a base station to the terminal device may be determined by downlink reception bandwidth of the terminal device. The base station needs to schedule downlink resources for terminal devices with different bandwidth capabilities, so from the perspective of network devices (such as the base station), the resource allocation of the entire downlink bandwidth may include multiple RBG sizes.
When the base station schedules RBGs to different terminal devices, since the terminal devices flexibly access the system bandwidth, that is, the frequency domain position of the terminal devices accessing the system bandwidth is not fixed, the following problems exist:
as shown in fig. 1, the RBGs of UE1 and UE2 are both 4 in size, in the prior art, the base station uses the starting position of the receiving bandwidth of the terminal device as the starting position of the RBG sequencing of the UE, when the base station firstly schedules RBG resources for UE1 and then schedules RBG resources for UE2, if the base station firstly schedules 4 th-7 th RBs and 12 th-15 th RBs in the system bandwidth for UE1, the following situation occurs: the remaining 1 st-3 rd RBs in the system bandwidth do not meet the size of the RBGs of UE2 and thus cannot be scheduled to UE2, and the 8 th-11 th RBs in the system bandwidth span two RBGs of UE2 and cannot be scheduled to UE2. Therefore, based on the above analysis, the prior art will cause blocking when scheduling resources for the UE, so that many RB resources cannot be scheduled to the UE2, resulting in resource waste. Therefore, the embodiment of the invention provides a communication method, which can offset the position of at least one RBG of a data channel scheduled to terminal equipment, so that the waste of resources can be reduced or avoided. As shown in fig. 2, the RBGs of the data channel scheduled to UE1 are moved one RB to the right as a whole, in which case the base station avoids wasting resources when scheduling RBG resources for UE2 after scheduling RBG resources for UE 1. The cross hatching in fig. 1 and 2 indicates RBGs scheduled by the base station for UE1, and the dot hatching indicates RBGs scheduled by the base station for UE2. The embodiment of the present invention may refer to the embodiment shown in fig. 3.
Fig. 3 is a schematic flow chart of a communication method according to an embodiment of the invention. As shown in fig. 3, the communication method 300 includes the following.
310. The network device sends first indication information to the terminal device, where the first indication information is used to indicate an offset of an nth frequency domain resource unit in m frequency domain resource units included in a receiving bandwidth of the terminal device relative to a position of the receiving bandwidth in a system bandwidth, the offset is determined according to granularity of the frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is a number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n. Accordingly, the terminal device receives the first indication information.
The frequency domain resource unit may be an RBG, or may be other frequency domain resource units, which is not limited in the embodiment of the present invention.
Alternatively, the RBs included in one frequency domain resource unit are contiguous in the frequency domain.
The nth frequency domain resource unit in the receiving bandwidth may be a frequency domain resource unit of a data channel scheduled to the terminal device by the network device, where the terminal device may send or receive data on the frequency domain resource unit; alternatively, the nth frequency domain resource unit in the receiving bandwidth may not be the frequency domain resource unit of the data channel scheduled to the terminal device by the network device, where the terminal device may send or receive the reference signal and/or the control signal on the frequency domain resource unit, or other terminal devices may communicate on the frequency domain resource unit.
The location of the reception bandwidth in the system bandwidth may be a start location of the reception bandwidth in the system bandwidth, for example, a location of a start RB in the reception bandwidth in the system bandwidth; alternatively, the termination position of the receiving bandwidth in the system bandwidth may be, for example, the position of the last RB in the receiving bandwidth in the system bandwidth; alternatively, the location of the RB with the reception bandwidth located in the middle position in the system bandwidth may be used, which is not limited by the embodiment of the present invention.
320. The network device sends second indication information to the terminal device, where the second indication information is used to indicate a relative position of at least one frequency domain resource unit and an nth frequency domain resource unit of a data channel scheduled to the terminal device, and the at least one frequency domain resource unit is located in the receiving bandwidth. Accordingly, the terminal device receives the second indication information.
330. And the terminal equipment determines at least one frequency domain resource unit which is scheduled to the data channel by the network equipment according to the offset indicated by the first indication information and the relative position indicated by the second indication information.
Specifically, the terminal device may determine the position of the nth frequency domain resource unit in the system bandwidth according to the offset, and then the terminal device may determine the position of the at least one frequency domain resource unit in the system bandwidth according to the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit, that is, determine the at least one frequency domain resource unit.
340. The terminal device transmits or receives data on the at least one frequency domain resource unit.
The first indication information may be carried in a high-layer signaling or DCI, and may also be carried in other signaling; the second indication information may be carried in a higher layer signaling or DCI, or may be carried in other signaling, which is not limited by the embodiment of the present invention.
It should be further noted that, the first indication information and the second indication information are sent simultaneously, for example, may be carried in different fields of the same high-layer signaling or DCI; alternatively, the first indication information and the second indication information may be sent separately, e.g. carried in different higher layer signaling or DCI.
In the embodiment of the invention, the blocking between the frequency domain resource units scheduled for the data channels of different terminal devices can be avoided or reduced by indicating the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth to the terminal device and indicating the relative position of at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit to the terminal device.
Alternatively, the network device may determine the granularity of the frequency domain resource unit according to the reception bandwidth of the terminal device. The network device may acquire the reception bandwidth of the terminal device. For example, the network device may receive the receiving bandwidth reported by the terminal device, or may acquire the receiving bandwidth of the stored terminal device in the memory.
Optionally, the set where the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units with different granularities, the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities, a first frequency domain resource unit in the set is spaced by an integer multiple between a position of the first frequency domain resource unit in the system bandwidth and a position of a second frequency domain resource unit in the set in the system bandwidth, the first frequency domain resource unit is a frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is a frequency domain resource unit with any other granularity in the set.
By making the positions of the frequency domain resource units with different granularities in the set where the frequency domain resource units of the terminal device are located in the system bandwidth meet the above conditions, the complexity of the network device for scheduling the frequency domain resource units for a plurality of terminal devices can be reduced.
Optionally, the first frequency domain resource unit includes a number of resource blocks that is a power of 2 to w times the number of resource blocks that the second frequency domain resource unit includes, w being largeAn integer of 0 or more. The set may be a= { a 1 ,a 2 ,...a n .., wherein a } 1 ,a 2 ,. it is frequency domain resource unit with different granularity, a n ＝2 n-1 a 1 For example, the set may be {1,2,4,8 … }, {3,6,12 … }, or {5,10,20 … }, etc. When the network device schedules the frequency domain resource units for the plurality of terminal devices corresponding to the frequency domain resource units with different granularities, the positions of the frequency domain resource units with different granularities in the set in the system bandwidth satisfy the nesting relationship shown in fig. 4. This can reduce the complexity of the network device to schedule frequency domain resource units for multiple terminal devices.
Optionally, the number of resource blocks included in the first frequency domain resource unit is a least common multiple of the number of resource blocks included in the second frequency domain resource unit. The set may be d= { d 1 ,d 2 ,...d n }, where d 1 ,d 2 .. the frequency domain resource units with different granularities, d n Is d 1 ,d 2 .. least common multiple. When the network device schedules the frequency domain resource units for the plurality of terminal devices corresponding to the frequency domain resource units with different granularities, the positions of the frequency domain resource units with different granularities in the set in the system bandwidth satisfy the relation shown in fig. 5, that is, the positions of the frequency domain resource units with other granularities except the frequency domain resource unit with the largest granularity in the set are embedded into the frequency domain resource unit with the largest granularity. This can reduce the complexity of the network device to schedule frequency domain resource units for multiple terminal devices.
Optionally, the first indication information includesAnd P represents the number of resource blocks included in the frequency domain resource unit of the terminal device.
Optionally, the second indication information comprises a bitmap, each bit in the bitmap representing one frequency domain resource unit, the relative position being determined according to a position of at least one frequency domain resource unit of the data channel in the bitmap. Assuming that "1" is used to represent a frequency domain resource unit scheduled to a data channel in the bitmap, the frequency domain resource unit includes 2 RBs, bitmap encoding 1001110100010 represents: the frequency domain resource scheduled to the data channel is the frequency domain resource unit numbered 0, 3, 4, 5, 7, 11 in the receiving bandwidth of the terminal device.
The communication method according to the embodiment of the present invention is described above, and the network device and the terminal device according to the embodiment of the present invention will be described below with reference to fig. 6 to 9.
Fig. 6 is a schematic structural diagram of a network device 600 according to an embodiment of the present invention. As shown in fig. 6, the network device 600 may include a processing unit 610 and a transceiving unit 620.
The processing unit 610 is configured to generate first indication information, where the first indication information is used to indicate an offset of a position of an nth frequency domain resource unit in a system bandwidth from a position of the receiving bandwidth in the system bandwidth in m frequency domain resource units included in a receiving bandwidth of the terminal device, where the offset is determined according to a granularity of the frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is a number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n;
the processing unit 610 is further configured to generate second indication information, where the second indication information is used to indicate a relative position of at least one frequency domain resource unit of a data channel scheduled to the terminal device and the nth frequency domain resource unit, and the at least one frequency domain resource unit is located in the receiving bandwidth;
The transceiver unit 620 is configured to transmit the first indication information and the second indication information. The transceiver unit 620 may separately transmit the first indication information and the second indication information, or may transmit the first indication information and the second indication information.
In the embodiment of the invention, the blocking between the frequency domain resource units scheduled for the data channels of different terminal devices can be avoided or reduced by indicating the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth to the terminal device and indicating the relative position of at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit to the terminal device.
It should be understood that the network device 600 according to the embodiment of the present invention may correspond to a network device in the communication method according to the embodiment of the present invention, and the foregoing and other operations and/or functions of each unit in the network device 600 are respectively for implementing the corresponding flow of the method shown in fig. 3, and are not described herein for brevity.
Fig. 7 is a schematic diagram of a network device 700 according to another embodiment of the present invention. As shown in fig. 7, the network device 700 includes a processor 710, a transceiver 720, and a memory 730, and the processor 710, the transceiver 720, and the memory 730 communicate with each other through an internal connection path to transfer control signals and/or data signals. The memory 730 is used for storing instructions and the processor 710 is used for executing the instructions stored by the memory 730. The transceiver 720 is used to receive signals or transmit signals under the control of the processor 710.
Specifically, the transceiver 720 is used to implement the function of the transceiver unit 620 in the network device 600 shown in fig. 6. The processor 710 is configured to implement the functions of the processing unit 610 in the network device 600 shown in fig. 6, and is not described herein for brevity.
It should be understood that the network device 700 according to the embodiment of the present invention may correspond to the network device in the communication method according to the embodiment of the present invention and the network device 600 according to the embodiment of the present invention, and the foregoing and other operations and/or functions of each unit in the network device 700 are respectively for implementing the corresponding flow of the method shown in fig. 3, and are not described herein for brevity.
Fig. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present invention. As shown in fig. 8, the terminal device 800 includes a transceiving unit 810 and a processing unit 820.
The transceiver 810 is configured to receive first indication information sent by a network device, where the first indication information is used to indicate an offset of a position of an nth frequency domain resource unit in a system bandwidth in m frequency domain resource units included in a receiving bandwidth of the terminal device relative to a position of the receiving bandwidth in the system bandwidth, where the offset is determined according to a granularity of the frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is a number of resource blocks included in the frequency domain resource unit, and m is an integer greater than or equal to n;
The transceiver 810 is further configured to receive second indication information sent by the network device, where the second indication information is used to indicate a relative position between at least one frequency domain resource unit of a data channel scheduled to the terminal device and the nth frequency domain resource unit, and the at least one frequency domain resource unit is located in the receiving bandwidth;
a processing unit 820 configured to determine at least one frequency domain resource unit scheduled to the data channel according to the offset and the relative position;
the transceiver unit 810 is further configured to communicate over the at least one frequency domain resource unit.
In the embodiment of the invention, the blocking between the frequency domain resource units scheduled for the data channels of different terminal devices can be avoided or reduced by indicating the offset of the position of the designated frequency domain resource unit in the receiving bandwidth of the terminal channel in the system bandwidth relative to the position of the receiving bandwidth in the system bandwidth to the terminal device and indicating the relative position of at least one frequency domain resource unit scheduled for the data channel and the designated frequency domain resource unit to the terminal device.
It should be understood that the terminal device 800 according to the embodiment of the present invention may correspond to a terminal device in the method for configuring beam resources according to the embodiment of the present invention, and the foregoing and other operations and/or functions of each unit in the terminal device 800 are respectively for implementing the corresponding flow of the method shown in fig. 3, which is not described herein for brevity.
Fig. 9 is a schematic structural diagram of a terminal device 900 according to another embodiment of the present application. As shown in fig. 9, the terminal device 900 includes a processor 910, a transceiver 920, and a memory 930, and the processor 910, the transceiver 920, and the memory 930 communicate with each other through an internal connection path to transfer control signals and/or data signals. The memory 930 is configured to store instructions and the processor 910 is configured to execute the instructions stored by the memory 930. The transceiver 920 is used to receive signals or transmit signals under the control of the processor 910.
Specifically, the transceiver 920 is used to implement the function of the transceiver unit 810 in the terminal device 800 shown in fig. 8. The processor 910 is configured to implement the function of the processing unit 820 in the terminal device 800 shown in fig. 8, which is not described herein for brevity.
It should be understood that the terminal device 900 according to the embodiment of the present application may correspond to the terminal device in the communication method according to the embodiment of the present application and the terminal device 800 according to the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 900 are respectively for implementing the corresponding flow of the method shown in fig. 3, and are not described herein for brevity.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in essence or a part contributing to the prior art or a part of the technical solutions, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (37)
1. A method of communication, comprising:
the method comprises the steps that a terminal device receives a high-layer signaling sent by a network device, wherein the high-layer signaling is used for determining an offset of a first position relative to a second position, the offset is determined according to granularity of frequency domain resource units of the terminal device, the granularity of the frequency domain resource units is the number of resource blocks included by the frequency domain resource units, the first position is a position of an nth frequency domain resource unit of m frequency domain resource units included by a receiving bandwidth of the terminal device in a system bandwidth, the second position is a position of the receiving bandwidth in the system bandwidth, n is a positive integer, and m is an integer larger than or equal to n;
the terminal equipment receives Downlink Control Information (DCI) sent by the network equipment, wherein the DCI comprises a bitmap, each bit in the bitmap represents a frequency domain resource unit, and the bitmap is used for determining at least one frequency domain resource unit scheduled to a data channel in the receiving bandwidth of the terminal equipment;
the terminal equipment determines the at least one frequency domain resource unit according to the offset and a bitmap contained in the DCI;
The terminal device communicates on the at least one frequency domain resource unit.
2. The method of claim 1, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the number of resource blocks included in a first frequency domain resource unit in the set is a power of 2 w times the number of resource blocks included in a second frequency domain resource unit in the set, w is an integer greater than or equal to 0; or alternatively, the process may be performed,
the number of resource blocks comprised by a first frequency domain resource unit in the set is a least common multiple of the number of resource blocks comprised by a second frequency domain resource unit in the set.
3. The method of claim 1, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is the frequency domain resource unit with any other granularity in the set.
4. The method of claim 3, wherein the location of the first frequency domain resource unit in the system bandwidth is spaced an integer multiple of the second frequency domain resource unit between the location of the second frequency domain resource unit in the system bandwidth.
5. The method according to any of claims 1 to 4, wherein the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit is determined from the position of the at least one frequency domain resource unit in the bitmap.
6. The method of claim 1, wherein the bitmap corresponds to a plurality of frequency domain resource units, and the at least one frequency domain resource unit is a frequency domain resource unit corresponding to a bit with a value of 1 in the bitmap.
7. The method according to any of claims 1 to 4 or 6, wherein the frequency domain resource units are resource block groups, RBGs.
8. A method of communication, comprising:
the network equipment sends a high-layer signaling to the terminal equipment, wherein the high-layer signaling is used for determining an offset of a first position relative to a second position, the offset is determined according to granularity of frequency domain resource units of the terminal equipment, the granularity of the frequency domain resource units is the number of Resource Blocks (RBs) included in the frequency domain resource units, the first position is a position of an nth frequency domain resource unit in a system bandwidth in m frequency domain resource units included in a receiving bandwidth of the terminal equipment, the second position is a position of the receiving bandwidth in the system bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
The network device sends Downlink Control Information (DCI) to the terminal device, wherein the DCI comprises a bitmap, each bit in the bitmap represents one frequency domain resource unit, the bitmap is used for determining at least one frequency domain resource unit of a data channel scheduled to the terminal device in a receiving bandwidth of the terminal device, the at least one frequency domain resource unit is located in the receiving bandwidth, and the offset and the bitmap are used for determining the at least one frequency domain resource unit.
9. The method of claim 8, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the number of resource blocks included in a first frequency domain resource unit in the set is a power of 2 w times the number of resource blocks included in a second frequency domain resource unit in the set, w is an integer greater than or equal to 0; or alternatively, the process may be performed,
the number of resource blocks comprised by a first frequency domain resource unit in the set is a least common multiple of the number of resource blocks comprised by a second frequency domain resource unit in the set.
10. The method of claim 8, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is any frequency domain resource unit with other granularity in the set;
the position of the first frequency domain resource unit in the system bandwidth and the position of the second frequency domain resource unit in the system bandwidth are separated by an integer multiple of the second frequency domain resource unit.
11. The method according to any of claims 8 to 10, wherein the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit is determined from the position of the at least one frequency domain resource unit in the bitmap.
12. The method according to any one of claims 8 to 10, wherein the bitmap corresponds to a plurality of frequency domain resource units, and the at least one frequency domain resource unit is a frequency domain resource unit corresponding to a bit with a value of 1 in the bitmap.
13. The method according to any of claims 8 to 10, wherein the frequency domain resource units are resource block groups, RBGs.
14. A terminal device, comprising:
a transceiver unit, configured to receive a higher layer signaling sent by a network device, where the higher layer signaling is used to determine an offset of a first position relative to a second position, where the offset is determined according to granularity of a frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is a number of resource blocks included in the frequency domain resource unit, the first position is a position of an nth frequency domain resource unit of m frequency domain resource units included in a receiving bandwidth of the terminal device in a system bandwidth, the second position is a position of the receiving bandwidth in the system bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
the receiving and transmitting unit is further configured to receive downlink control information DCI, where the DCI includes a bitmap, each bit in the bitmap represents one frequency domain resource unit, and the bitmap is used to determine at least one frequency domain resource unit scheduled to a data channel in a receiving bandwidth of the terminal device;
a processing unit, configured to determine the at least one frequency domain resource unit according to the offset and a bitmap included in the DCI;
The transceiver unit is further configured to communicate over the at least one frequency domain resource unit.
15. The terminal device according to claim 14, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one frequency domain resource unit of the plurality of frequency domain resource units of different granularity;
the number of resource blocks included in a first frequency domain resource unit in the set is a power of 2 w times the number of resource blocks included in a second frequency domain resource unit in the set, w is an integer greater than or equal to 0; or alternatively, the process may be performed,
the number of resource blocks comprised by a first frequency domain resource unit in the set is a least common multiple of the number of resource blocks comprised by a second frequency domain resource unit in the set.
16. The terminal device according to claim 14, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one frequency domain resource unit of the plurality of frequency domain resource units of different granularity;
The first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is the frequency domain resource unit with any other granularity in the set.
17. The terminal device of claim 16, wherein the location of the first frequency domain resource unit in the system bandwidth is spaced from the location of the second frequency domain resource unit in the system bandwidth by an integer multiple of the second frequency domain resource unit.
18. The terminal device according to any of the claims 14 to 17, wherein the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit is determined from the position of the at least one frequency domain resource unit in the bitmap.
19. The terminal device of claim 18, wherein the bitmap corresponds to a plurality of frequency domain resource units, and the at least one frequency domain resource unit is a frequency domain resource unit corresponding to a bit with a value of 1 in the bitmap.
20. The terminal device according to any of the claims 14 to 17 or 19, characterized in that the frequency domain resource unit is a resource block group, RBG.
21. A network device, comprising:
A transceiver unit, configured to send a higher layer signaling to a terminal device, where the higher layer signaling is used to determine an offset of a first position relative to a second position, where the offset is determined according to granularity of a frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is a number of resource blocks RBs included in the frequency domain resource unit, the first position is a position of an nth frequency domain resource unit in a system bandwidth in m frequency domain resource units included in a receiving bandwidth of the terminal device, the second position is a position of the receiving bandwidth in the system bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
the transceiving unit is further configured to send downlink control information DCI to the terminal device, where the DCI includes bitmap information, each bit in the bitmap represents one frequency domain resource unit, the bitmap is used to determine at least one frequency domain resource unit of a data channel scheduled to the terminal device in a receiving bandwidth of the terminal device, the at least one frequency domain resource unit is located in the receiving bandwidth, and the offset and the bitmap are used to determine the at least one frequency domain resource unit.
22. The network device of claim 21, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the number of resource blocks included in a first frequency domain resource unit in the set is a power of 2 w times the number of resource blocks included in a second frequency domain resource unit in the set, w is an integer greater than or equal to 0; or alternatively, the process may be performed,
the number of resource blocks comprised by a first frequency domain resource unit in the set is a least common multiple of the number of resource blocks comprised by a second frequency domain resource unit in the set.
23. The network device of claim 22, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is any frequency domain resource unit with other granularity in the set;
Wherein the position of the first frequency domain resource unit in the system bandwidth and the position of the second frequency domain resource unit in the system bandwidth are separated by an integer multiple of the second frequency domain resource unit.
24. The network device of any of claims 21 to 23, wherein the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit is determined from the position of the at least one frequency domain resource unit in the bitmap.
25. The network device according to any of claims 21 to 23, wherein the bitmap corresponds to a plurality of frequency domain resource units, and the at least one frequency domain resource unit is a frequency domain resource unit corresponding to a bit with a value of 1 in the bitmap.
26. The network device according to any one of claims 21 to 23, wherein,
the frequency domain resource unit is a resource block group RBG.
27. A wireless communication apparatus in a terminal device, comprising a processor and a memory, the memory for storing a computer program or instructions, the processor for executing the computer program or instructions in the memory, the apparatus for implementing:
Receiving a high-layer signaling, wherein the high-layer signaling is used for determining an offset of a first position relative to a second position, the offset is determined according to granularity of frequency domain resource units of the terminal equipment, the granularity of the frequency domain resource units is the number of resource blocks included by the frequency domain resource units, the first position is a position of an nth frequency domain resource unit of m frequency domain resource units included by a receiving bandwidth of the terminal equipment in a system bandwidth, the second position is a position of the receiving bandwidth in the system bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
receiving Downlink Control Information (DCI), wherein the DCI comprises a bitmap, each bit in the bitmap represents one frequency domain resource unit, and the bitmap is used for determining at least one frequency domain resource unit scheduled to a data channel in the receiving bandwidth of the terminal equipment;
determining the at least one frequency domain resource unit according to the offset and a bitmap contained in the DCI;
communication is performed over the at least one frequency domain resource unit.
28. The apparatus of claim 27, wherein the set of frequency domain resource units of the terminal device comprises a plurality of frequency domain resource units of different granularity, and wherein the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
The number of resource blocks included in a first frequency domain resource unit in the set is a power of 2 w times the number of resource blocks included in a second frequency domain resource unit in the set, w is an integer greater than or equal to 0; or alternatively, the process may be performed,
the number of resource blocks comprised by a first frequency domain resource unit in the set is a least common multiple of the number of resource blocks comprised by a second frequency domain resource unit in the set.
29. The apparatus of claim 27, wherein the set of frequency domain resource units of the terminal device comprises a plurality of frequency domain resource units of different granularity, and wherein the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is any frequency domain resource unit with other granularity in the set;
wherein the position of the first frequency domain resource unit in the system bandwidth and the position of the second frequency domain resource unit in the system bandwidth are separated by an integer multiple of the second frequency domain resource unit.
30. The apparatus of claim 27, wherein the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit is determined based on the position of the at least one frequency domain resource unit in the bitmap.
31. The apparatus according to any one of claims 27 to 30, wherein the bitmap corresponds to a plurality of frequency domain resource units, and the at least one frequency domain resource unit is a frequency domain resource unit corresponding to a bit with a value of 1 in the bitmap;
the frequency domain resource unit is a resource block group RBG.
32. A wireless communications apparatus in a network device, comprising a processor and a memory configured to store a computer program or instructions, the processor configured to execute the computer program or instructions in the memory, the apparatus configured to implement:
transmitting a high-layer signaling, wherein the high-layer signaling is used for determining an offset of a first position relative to a second position, the offset is determined according to granularity of frequency domain resource units of terminal equipment, the granularity of the frequency domain resource units is the number of Resource Blocks (RBs) included in the frequency domain resource units, the first position is a position of an nth frequency domain resource unit in a system bandwidth in m frequency domain resource units included in a receiving bandwidth of the terminal equipment, the second position is a position of the receiving bandwidth in the system bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
Transmitting Downlink Control Information (DCI), wherein the DCI comprises bitmap information, each bit in the bitmap represents one frequency domain resource unit, the bitmap is used for determining at least one frequency domain resource unit of a data channel scheduled to the terminal equipment in a receiving bandwidth of the terminal equipment, the at least one frequency domain resource unit is located in the receiving bandwidth, and the offset and the bitmap are used for determining the at least one frequency domain resource unit.
33. The apparatus of claim 32, wherein the set of frequency domain resource units of the terminal device comprises a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the number of resource blocks included in a first frequency domain resource unit in the set is a power of 2 w times the number of resource blocks included in a second frequency domain resource unit in the set, w is an integer greater than or equal to 0; or alternatively, the process may be performed,
the number of resource blocks comprised by a first frequency domain resource unit in the set is a least common multiple of the number of resource blocks comprised by a second frequency domain resource unit in the set.
34. The apparatus of claim 32, wherein the set of frequency domain resource units of the terminal device comprises a plurality of frequency domain resource units of different granularity, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularity;
the first frequency domain resource unit is the frequency domain resource unit with the largest granularity in the set, and the second frequency domain resource unit is any frequency domain resource unit with other granularity in the set;
wherein the position of the first frequency domain resource unit in the system bandwidth and the position of the second frequency domain resource unit in the system bandwidth are separated by an integer multiple of the second frequency domain resource unit.
35. The apparatus of claim 32, wherein the relative position of the at least one frequency domain resource unit and the nth frequency domain resource unit is determined based on the position of the at least one frequency domain resource unit in the bitmap.
36. The apparatus according to any one of claims 32 to 35, wherein the bitmap corresponds to a plurality of frequency domain resource units, and the at least one frequency domain resource unit is a frequency domain resource unit corresponding to a bit with a value of 1 in the bitmap;
The frequency domain resource unit is a resource block group RBG.
37. A computer readable storage medium, characterized in that a computer program or instructions for implementing the method of any one of claims 1 to 7 or for implementing the method of any one of claims 8 to 13 is stored.
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| US20230413295A1 (en) * | 2020-10-22 | 2023-12-21 | Nokia Technologies Oy | Frequency domain resource allocation for multicast traffic |
| CN116803126A (en) * | 2021-01-05 | 2023-09-22 | 中兴通讯股份有限公司 | System and method for sounding reference signal transmission |
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| CN108810972A (en) | 2018-11-13 |
| CN113055940A (en) | 2021-06-29 |
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