CN113163441A - Communication method, terminal equipment and network equipment - Google Patents
Communication method, terminal equipment and network equipment Download PDFInfo
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- CN113163441A CN113163441A CN202110189029.9A CN202110189029A CN113163441A CN 113163441 A CN113163441 A CN 113163441A CN 202110189029 A CN202110189029 A CN 202110189029A CN 113163441 A CN113163441 A CN 113163441A
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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
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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 the nth frequency domain resource unit in m frequency domain resource units included in the receiving bandwidth of the terminal equipment in the system bandwidth 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 units of the terminal equipment, 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 network device sends second indication information to the terminal device, 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 device and the nth frequency domain resource unit, and the at least one frequency domain resource unit is located in the receiving bandwidth. The method and the device 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 (LTE) system, Downlink Control information of a Physical Downlink Control Channel (PDCCH) may be usedA bitmap (bitmap) in the (DCI) indicates a position of a Resource Block Group (RBG) allocated to a Physical Downlink Shared Channel (PDSCH), wherein the RBG is a Group of Resource Blocks (RBs) consecutive in a frequency domain. In LTE, since the system bandwidth is consistent with the User Equipment (UE) bandwidth, the size P of the RBGs scheduled by the base station to the UE (i.e. the number of RBs included in each RBG) and the downlink system bandwidth
Related, as shown in table 1.
TABLE 1
For system bandwidth
For 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, and the least significant bit can represent RBG
For example, if a certain RBG is allocated to the PDSCH, the bit corresponding to the RBG in the bitmap is 1; otherwise, it is set to 0.
For example, when the system bandwidth includes 25 RBs, the table lookup results in an RBG size P of 2, and the bitmap includes all of the RBs
And each 1 bit of the bits represents two frequency-domain continuous RBs corresponding to 1 RBG. Bit map coding assuming allocation of PDSCH resourcesThe code is: 1001110100010, the PDSCH is allocated RBG resources numbered 0, 3, 4, 5, 7, 11.
And in The fifth generation (The 5)thGeneration, 5G) New air interface (NR) system, the bandwidth of the UE may be smaller than the system bandwidth
If the prior art is adopted to take the starting position of the bandwidth of the UE as the starting position of the RBG of the UE, the blockage between the RBGs scheduled for different UEs will be caused.
Disclosure of Invention
The application provides a communication method, a terminal device and a network device, which can avoid or reduce the blockage between frequency domain resource units scheduled for different terminal devices.
In a first aspect, a communication method is provided, the method including:
the method comprises the steps that a network device sends first indication information to a terminal device, wherein the first indication information is used for indicating an offset of a position of an nth frequency domain resource unit in m frequency domain resource units included in a receiving bandwidth of the terminal device in a system bandwidth 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;
and the network device sends second indication information to the terminal 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.
In the embodiment of the present invention, by indicating, to the terminal device, an offset of a position of a specified frequency domain resource unit in a reception bandwidth of a terminal channel in the system bandwidth with respect to a position of the reception bandwidth in the system bandwidth, and indicating, to the terminal device, a relative position of at least one frequency domain resource unit scheduled to a data channel and the specified frequency domain resource unit, it is possible to avoid or reduce congestion between frequency domain resource units scheduled for data channels of different terminal devices.
In some possible implementation manners, a set in which 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, an integer multiple of the second frequency domain resource unit is spaced between a position of a first frequency domain resource unit in the set 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 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.
By enabling the positions of the frequency domain resource units with different granularities in the set of the frequency domain resource units of the terminal equipment in the system bandwidth to meet the above conditions, the complexity of the network equipment for scheduling the frequency domain resource units for the plurality of terminal equipment can be reduced.
In some possible implementations, the number of resource blocks included in the first frequency-domain resource unit is 2 times w times the number of resource blocks included in the second frequency-domain resource unit, and w is an integer greater than or equal to 0.
In some possible implementations, the number of resource blocks included by the first frequency-domain resource unit is a least common multiple of the number of resource blocks included by the second frequency-domain resource unit.
In some possible implementations, the first indication information includes
A number of information bits, P representing a number of resource blocks comprised by a frequency domain resource unit of the terminal device.
In some possible implementations, the second indication information includes a bitmap, each bit in the bitmap represents one frequency domain resource unit, and the relative position is determined according to a position of at least one frequency domain resource unit of the data channel in the bitmap.
In a second aspect, a communication method is provided, the method comprising:
a terminal device receives 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 m frequency domain resource units included in a receiving bandwidth of the terminal device in a system bandwidth 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 terminal device receives second indication information sent by the network 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;
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 present invention, by indicating, to the terminal device, an offset of a position of a specified frequency domain resource unit in a reception bandwidth of a terminal channel in the system bandwidth with respect to a position of the reception bandwidth in the system bandwidth, and indicating, to the terminal device, a relative position of at least one frequency domain resource unit scheduled to a data channel and the specified frequency domain resource unit, it is possible to avoid or reduce congestion between frequency domain resource units scheduled for data channels of different terminal devices.
In some possible implementation manners, a set in which 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, an integer multiple of the second frequency domain resource unit is spaced between a position of a first frequency domain resource unit in the set 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 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.
In some possible implementations, the number of resource blocks included in the first frequency-domain resource unit is 2 times w times the number of resource blocks included in the second frequency-domain resource unit, and w is an integer greater than or equal to 0.
In some possible implementations, the number of resource blocks included by the first frequency-domain resource unit is a least common multiple of the number of resource blocks included by the second frequency-domain resource unit.
In some possible implementations, the first indication information includes
A number of information bits, P representing a number of resource blocks comprised by a frequency domain resource unit of the terminal device.
In some possible implementations, the second indication information includes a bitmap, each bit in the bitmap represents one frequency domain resource unit, and the relative position is 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, where the network device is configured to implement the first aspect or the method in any one of the foregoing possible implementation manners of the first aspect.
In particular, the network device may comprise means for performing the method of the first aspect or any of its possible implementations.
In a fourth aspect, a terminal device is provided, where the terminal device is configured to implement the method of the second aspect or any one of the above possible implementation manners of the second aspect.
In particular, the terminal device may comprise means for performing the method of the second aspect or any of its possible implementations.
In a fifth aspect, a network device is provided, which includes a processor, a transceiver, and a memory, the processor, the transceiver, and the memory are in communication with each other through an internal connection path, the memory is configured to store instructions, the processor is configured to execute the instructions stored in the memory, and execution of the instructions stored in the memory causes the network device to perform the method according to the first aspect or any possible implementation manner 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 configured to store instructions, the processor being configured to execute the instructions stored in the memory, and execution of the instructions stored in the memory causing the terminal device to perform the method of any one of the possible implementations of the second aspect or the second aspect.
In a seventh aspect, a computer-readable storage medium is provided, where the computer-readable storage medium stores a program, and the program enables a network device to execute 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, which stores a program that causes a terminal device to execute the method according to the second aspect or any one of the possible implementation manners of the second aspect.
Drawings
FIG. 1 is a schematic view of resource blocking for RBG scheduling;
FIG. 2 is a diagram illustrating an adjusted RBG schedule according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart diagram of a communication method according to an embodiment of the present invention;
FIG. 4 is a location relationship of frequency domain resource units of different granularities in the same set according to an embodiment of the present invention;
FIG. 5 is a location relationship of frequency domain resource units of different granularities 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 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 diagram of a terminal device according to another embodiment of the present invention.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
In different communication systems, the network devices in the embodiments of the present invention may be different devices. For example, the Network device may be a Base Station Controller (BSC), a 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.
It should be understood that, in the embodiment of the present invention, a Terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), and the like, where the Terminal may communicate with one or more core networks via a 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, and the like, and for example, the Terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile apparatus.
In the NR system, terminal equipments with different bandwidth capabilities can flexibly access to the same system bandwidth, and therefore the granularity of the RBGs scheduled by the base station to the terminal equipments (i.e. the size of the RBGs) may be determined by the downlink receiving bandwidth of the terminal equipments. The base station needs to schedule downlink resources for terminal devices with different bandwidth capabilities, so from the perspective of a network device (e.g., the base station), the resource allocation of the entire downlink bandwidth may include multiple RBG sizes.
When a base station schedules RBGs for different terminal devices, the terminal devices can flexibly access the system bandwidth, that is, the frequency domain position of the system bandwidth accessed by the terminal devices is not fixed, so that the following problems can be caused:
as shown in fig. 1, the RBG sizes of UE1 and UE2 are both 4, 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 ordering of the UE, and when the base station schedules the RBG resource for UE1 first and then schedules the RBG resource for UE2, assuming that the base station schedules 4 th to 7 th RBs and 12 th to 15 th RBs in the system bandwidth for UE1 first, the following situations occur: the remaining 1-3 RBs in the system bandwidth do not satisfy the size of the RBG of UE2 and therefore cannot be scheduled to UE2, and the 8 th to 11 th RBs in the system bandwidth span both RBGs of UE2 and cannot be scheduled to UE 2. Therefore, based on the above analysis, using the prior art will result in blocking when scheduling resources for the UE, so that many RB resources cannot be scheduled to the UE2, resulting in a waste of resources. Therefore, the embodiment of the present invention provides a communication method, which can shift a position of at least one RBG of a data channel scheduled to a terminal device, so as to reduce or avoid waste of resources. As shown in FIG. 2, the RBGs of the data channel scheduled to UE1 are moved to the right by one RB in their entirety, in which case the base station avoids wasting resources when it goes to schedule RBG resources for UE2 after scheduling RBG resources for UE 1. The cross-hatched squares in fig. 1 and 2 represent RBGs scheduled by the base station for UE1, and the dotted hatching represents RBGs scheduled by the base station for UE 2. Specific contents of 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 present invention. As shown in fig. 3, the communication method 300 includes the following.
310. The network equipment sends first indication information to the terminal equipment, wherein the first indication information is used for indicating the offset of the nth frequency domain resource unit in 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. Accordingly, the terminal device receives the first indication information.
The frequency domain resource unit may be an RBG, or other frequency domain resource units, which is not limited in this 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 by the network device to the terminal device, and at this time, the terminal device may transmit or receive data on the frequency-domain resource unit; alternatively, the nth frequency-domain resource unit in the received bandwidth may not be a frequency-domain resource unit of a data channel scheduled by the network device to the terminal device, at this time, the terminal device may transmit or receive a reference signal and/or a control signal and the like 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 starting location of the reception bandwidth in the system bandwidth, for example, a location of a starting RB in the reception bandwidth in the system bandwidth; alternatively, the termination position of the receiving bandwidth in the system bandwidth may also be, for example, the position of the last RB in the receiving bandwidth in the system bandwidth; alternatively, the position of the RB with the receiving bandwidth located in the middle position in the system bandwidth may also be used, and the like, which is not limited in this embodiment of the present invention.
320. The network device sends second indication information to the terminal device, 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 device and the nth frequency domain resource unit, 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 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, that is, determine the at least one frequency-domain resource unit, according to the relative position of the at least one frequency-domain resource unit and the nth 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 higher 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 in this embodiment of the present invention.
It should be further noted that the first indication information and the second indication information are sent simultaneously, and may be carried in different fields of the same higher layer signaling or DCI, for example; alternatively, the first indication information and the second indication information may be sent separately, for example, carried in different higher layer signaling or DCI.
In the embodiment of the present invention, by indicating, to the terminal device, an offset of a position of a specified frequency domain resource unit in a reception bandwidth of a terminal channel in the system bandwidth with respect to a position of the reception bandwidth in the system bandwidth, and indicating, to the terminal device, a relative position of at least one frequency domain resource unit scheduled to a data channel and the specified frequency domain resource unit, it is possible to avoid or reduce congestion between frequency domain resource units scheduled for data channels of different terminal devices.
Alternatively, the network device may determine the granularity of the frequency domain resource unit according to the receiving bandwidth of the terminal device. The network device may obtain the reception bandwidth of the terminal device. For example, the network device may receive the receiving bandwidth reported by the terminal device, or may obtain the receiving bandwidth of the terminal device stored in the memory.
Optionally, a set in which 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 frequency domain resource units with different granularities, an integer multiple of a second frequency domain resource unit is spaced between a position of a first frequency domain resource unit in the set 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 a 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 enabling the positions of the frequency domain resource units with different granularities in the set of the frequency domain resource units of the terminal equipment in the system bandwidth to meet the above conditions, the complexity of the network equipment for scheduling the frequency domain resource units for the plurality of terminal equipment can be reduced.
Optionally, the number of resource blocks included in the first frequency domain resource unit is w times 2 of the number of resource blocks included in the second frequency domain resource unit, and w is an integer greater than or equal to 0. The set may be a ═ a1,a2,...an.., wherein a1,a2,.. are frequency domain resource units of different granularities, an＝2n-1a1For 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 a plurality of terminal devices corresponding to the frequency domain resource units of different granularities, the positions of the frequency domain resource units of 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 in scheduling frequency domain resource units for multiple terminal devices.
Optionally, the number of resource blocks included by the first frequency-domain resource unit is the least common multiple of the number of resource blocks included by the second frequency-domain resource unit. The set may be d ═ d1,d2,...dnIn which d is1,d2.. frequency domain resource units of different granularities, dnIs d1,d2... When the network device schedules the frequency domain resource units for a 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 relationship shown in fig. 5, that is, the positions of the frequency domain resource units with different granularities in the set are divided by the positions in the setThe positions of the frequency domain resource units with the granularity other than the frequency domain resource unit with the maximum granularity are all embedded into the frequency domain resource unit with the maximum granularity. This can reduce the complexity of the network device in scheduling frequency domain resource units for multiple terminal devices.
Optionally, the first indication information comprises
The number of resource blocks included in the frequency domain resource unit of the terminal device is represented by P.
Optionally, the second indication information comprises a bitmap, each bit in the bitmap represents one frequency domain resource unit, and the relative position is determined according to the position of at least one frequency domain resource unit of the data channel in the bitmap. Assuming that the frequency domain resource elements scheduled for the data channel are denoted by "1" in the bitmap, the frequency domain resource elements include 2 RBs, the bitmap encoding 1001110100010 denotes: the frequency domain resources scheduled to the data channel are frequency domain resource units numbered 0, 3, 4, 5, 7, 11 in the receiving bandwidth of the terminal device.
Having described the communication method according to the embodiment of the present invention, 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, in a system bandwidth, of an nth frequency-domain resource unit of m frequency-domain resource units included in a reception bandwidth of the terminal device with respect to a position, in the system bandwidth, of the reception bandwidth, where the offset is determined according to a granularity of the frequency-domain resource unit of the terminal device, where 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 620 is further configured to generate second indication information indicating 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, where the at least one frequency-domain resource unit is located within the reception bandwidth;
the transceiving unit 620 is configured to transmit the first indication information and the second indication information. The transceiver 620 may transmit the first indication information and the second indication information separately, or may transmit the first indication information and the second indication information.
In the embodiment of the present invention, by indicating, to the terminal device, an offset of a position of a specified frequency domain resource unit in a reception bandwidth of a terminal channel in the system bandwidth with respect to a position of the reception bandwidth in the system bandwidth, and indicating, to the terminal device, a relative position of at least one frequency domain resource unit scheduled to a data channel and the specified frequency domain resource unit, it is possible to avoid or reduce congestion between frequency domain resource units scheduled for data channels of different terminal devices.
It should be understood that the network device 600 according to the embodiment of the present invention may correspond to a network device in a communication method according to the embodiment of the present invention, and the above 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 again for brevity.
Fig. 7 is a schematic structural 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 a control signal and/or a data signal. 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 for receiving signals or transmitting signals under the control of the processor 710.
In particular, the transceiver 720 is used to implement the functions of the transceiving unit 620 in the network device 600 shown in fig. 6. The processor 70 is configured to implement the functions of the processing unit 610 in the network device 600 shown in fig. 6, and for brevity, will not be described herein again.
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 above 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 again 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 transceiving unit 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, in a system bandwidth, of an nth frequency-domain resource unit among m frequency-domain resource units included in a receiving bandwidth of the terminal device with respect to a position, in the system bandwidth, of the receiving 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 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 within the reception 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 also configured to communicate on the at least one frequency domain resource unit.
In the embodiment of the present invention, by indicating, to the terminal device, an offset of a position of a specified frequency domain resource unit in a reception bandwidth of a terminal channel in the system bandwidth with respect to a position of the reception bandwidth in the system bandwidth, and indicating, to the terminal device, a relative position of at least one frequency domain resource unit scheduled to a data channel and the specified frequency domain resource unit, it is possible to avoid or reduce congestion between frequency domain resource units scheduled for data channels of different terminal devices.
It should be understood that the terminal device 800 according to the embodiment of the present invention may correspond to the terminal device in the method for configuring beam resources according to the embodiment of the present invention, and the above 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, and are not described herein again for brevity.
Fig. 9 is a schematic structural diagram of a terminal device 900 according to another embodiment of the present invention. 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 a control signal and/or a data signal. 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 for receiving signals or transmitting signals under the control of the processor 910.
Specifically, the transceiver 920 is used to implement the function of the receiving unit 810 in the terminal device 800 shown in fig. 8. The processor 910 is configured to implement the functions of the processing unit 820 in the terminal device 800 shown in fig. 8, and for brevity, no further description is provided here.
It should be understood that the terminal device 900 according to the embodiment of the present invention may correspond to the terminal device in the communication method according to the embodiment of the present invention and the terminal device 800 according to the embodiment of the present invention, and the above 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 again 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 implementation. 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 is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into 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 invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by 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 (33)
1. A method of communication, comprising:
a terminal device receives a high-level signaling sent by a network device, where the high-level signaling is used to determine an offset of a first location relative to a second location, where the offset is determined according to a granularity of a frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is the number of resource blocks included in the frequency domain resource unit, the first location is a location, in a system bandwidth, of an nth frequency domain resource unit of m frequency domain resource units included in a reception bandwidth of the terminal device, the second location is a location, in the system bandwidth, of the reception bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
the terminal equipment receives downlink control information DCI sent by the network equipment;
the terminal equipment determines at least one frequency domain resource unit scheduled to a data channel according to the offset and the DCI;
the terminal device communicates on the at least one frequency domain resource unit.
2. The method according to claim 1, wherein the set in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularities;
the number of resource blocks included in a first frequency domain resource unit in the set is w-th power times of 2 of the number of resource blocks included in a second frequency domain resource unit in the set, and w is an integer greater than or equal to 0; alternatively, the first and second electrodes may be,
the number of resource blocks comprised by a first frequency-domain resource unit in the set is the least common multiple of the number of resource blocks comprised by a second frequency-domain resource unit in the set.
3. The method according to claim 1, wherein the set in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularities;
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 a position of the first frequency-domain resource unit in the system bandwidth is spaced apart from a position of the second frequency-domain resource unit in the system bandwidth by an integer multiple of the second frequency-domain resource unit.
5. The method of any of claims 1-4, wherein the DCI comprises a bitmap, each bit in the bitmap representing one frequency domain resource unit, the bitmap for indicating at least one frequency domain resource unit of the data channel.
6. The method of claim 5, 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 method comprises the steps that network equipment sends high-level signaling to terminal equipment, wherein the high-level signaling is used for determining an offset of a first position relative to a second position, the offset is determined according to granularity of a frequency domain resource unit of the terminal equipment, the granularity of the frequency domain resource unit is the number of Resource Blocks (RBs) included by the frequency domain resource unit, the first position is a position of an nth frequency domain resource unit in m frequency domain resource units included by receiving bandwidth of the terminal equipment in 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 network device sends downlink control information DCI to the terminal device, where the DCI includes a bitmap, each bit in the bitmap represents a frequency domain resource unit, the bitmap is used to indicate at least one 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.
9. The method of claim 8, wherein the set of the frequency domain resource units of the terminal device includes a plurality of frequency domain resource units with different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities;
the number of resource blocks included in a first frequency domain resource unit in the set is w-th power times of 2 of the number of resource blocks included in a second frequency domain resource unit in the set, and w is an integer greater than or equal to 0; alternatively, the first and second electrodes may be,
the number of resource blocks comprised by a first frequency-domain resource unit in the set is the 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 the frequency domain resource units of the terminal device includes a plurality of frequency domain resource units with different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities;
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.
11. The method of claim 10, wherein a position of the first frequency-domain resource unit in the system bandwidth is spaced apart from a position of the second frequency-domain resource unit in the system bandwidth by an integer multiple of the second frequency-domain resource unit.
12. The method according to any of claims 8 to 11, 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 11, wherein the frequency domain resource unit is a resource block group, RBG.
14. A terminal device, comprising:
a transceiver unit, configured to receive a high-level signaling sent by a network device, where the high-level signaling is used to determine an offset of a first location with respect to a second location, where the offset is determined according to a granularity of a frequency domain resource unit of the terminal device, where the granularity of the frequency domain resource unit is the number of resource blocks included in the frequency domain resource unit, the first location is a location, in a system bandwidth, of an nth frequency domain resource unit of m frequency domain resource units included in a reception bandwidth of the terminal device, the second location is a location, in the system bandwidth, of the reception bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
the receiving and sending unit is further configured to receive downlink control information DCI sent by the network device;
a processing unit, configured to determine at least one frequency domain resource unit scheduled to a data channel according to the offset and the DCI;
the transceiver unit is further configured to communicate on the at least one frequency domain resource unit.
15. The terminal device according to claim 14, wherein the set in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units with different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities;
the number of resource blocks included in a first frequency domain resource unit in the set is w-th power times of 2 of the number of resource blocks included in a second frequency domain resource unit in the set, and w is an integer greater than or equal to 0; alternatively, the first and second electrodes may be,
the number of resource blocks comprised by a first frequency-domain resource unit in the set is the 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 in which the frequency domain resource unit of the terminal device is located includes a plurality of frequency domain resource units with different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities;
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 a position of the first frequency-domain resource unit in the system bandwidth is spaced from a position 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 of any of claims 14-17, wherein the DCI comprises a bitmap, each bit in the bitmap representing one frequency domain resource element, the bitmap being used to indicate at least one frequency domain resource element of the data channel.
19. The terminal device of claim 18, wherein the bitmap corresponds to a plurality of frequency domain resource units, and wherein 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 claims 14 to 17 or 19, wherein 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 location with respect to a second location, where the offset is determined according to a granularity of a frequency domain resource unit of the terminal device, where the granularity of the frequency domain resource unit is the number of resource blocks RB included in the frequency domain resource unit, the first location is a location, in a system bandwidth, of an nth frequency domain resource unit among m frequency domain resource units included in a reception bandwidth of the terminal device, the second location is a location, in the system bandwidth, of the reception bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
the receiving and sending unit is further configured to send downlink control information DCI to the terminal device, where the DCI includes a bitmap, each bit in the bitmap represents one frequency domain resource unit, the bitmap is used to indicate at least one 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.
22. The network device according to claim 21, wherein the set of the frequency domain resource units of the terminal device includes a plurality of frequency domain resource units with different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities;
the number of resource blocks included in a first frequency domain resource unit in the set is w-th power times of 2 of the number of resource blocks included in a second frequency domain resource unit in the set, and w is an integer greater than or equal to 0; alternatively, the first and second electrodes may be,
the number of resource blocks comprised by a first frequency-domain resource unit in the set is the least common multiple of the number of resource blocks comprised by a second frequency-domain resource unit in the set.
23. The network device according to claim 22, wherein the set of the frequency domain resource units of the terminal device includes a plurality of frequency domain resource units with different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities;
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.
24. The network device of claim 23, wherein a position of the first frequency-domain resource unit in the system bandwidth is spaced apart from a position of the second frequency-domain resource unit in the system bandwidth by an integer multiple of the second frequency-domain resource unit.
25. The network device according to any of claims 21 to 24, 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 of any of claims 21 to 24,
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 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:
receiving a high-level signaling sent by a network device, where the high-level signaling is used to determine an offset of a first location with respect to a second location, where the offset is determined according to a granularity of a frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is the number of resource blocks included in the frequency domain resource unit, the first location is a location, in a system bandwidth, of an nth frequency domain resource unit of m frequency domain resource units included in a reception bandwidth of the terminal device, the second location is a location, in the system bandwidth, of the reception bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
receiving downlink control information DCI sent by the network equipment;
determining at least one frequency domain resource unit scheduled to the data channel according to the offset and the DCI;
communicating on 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 includes a plurality of frequency domain resource units of different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units of different granularities;
the number of resource blocks included in a first frequency domain resource unit in the set is w-th power times of 2 of the number of resource blocks included in a second frequency domain resource unit in the set, and w is an integer greater than or equal to 0; alternatively, the first and second electrodes may be,
the number of resource blocks comprised by a first frequency-domain resource unit in the set is the 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 or 28, wherein the DCI comprises a bitmap, each bit in the bitmap represents one frequency domain resource unit, the bitmap is used to indicate at least one frequency domain resource unit of the data channel, the bitmap corresponds to multiple 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.
30. An apparatus for wireless communication in a network device, comprising a processor and a memory, the 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:
sending a high-level signaling to a terminal device, where the high-level signaling is used to determine an offset of a first location with respect to a second location, where the offset is determined according to a granularity of a frequency domain resource unit of the terminal device, the granularity of the frequency domain resource unit is the number of resource blocks RB included in the frequency domain resource unit, the first location is a location of an nth frequency domain resource unit in m frequency domain resource units included in a reception bandwidth of the terminal device in a system bandwidth, the second location is a location of the reception bandwidth in the system bandwidth, n is a positive integer, and m is an integer greater than or equal to n;
and sending Downlink Control Information (DCI) to the terminal equipment, wherein the DCI comprises a bitmap, each bit in the bitmap represents one frequency domain resource unit, the bitmap is used for indicating at least one frequency domain resource unit of a data channel scheduled to the terminal equipment, and the at least one frequency domain resource unit is located in the receiving bandwidth.
31. The apparatus of claim 30, wherein the set of frequency domain resource units of the terminal device includes a plurality of frequency domain resource units with different granularities, and the frequency domain resource unit of the terminal device is one of the plurality of frequency domain resource units with different granularities;
the number of resource blocks included in a first frequency domain resource unit in the set is w-th power times of 2 of the number of resource blocks included in a second frequency domain resource unit in the set, and w is an integer greater than or equal to 0; alternatively, the first and second electrodes may be,
the number of resource blocks comprised by a first frequency-domain resource unit in the set is the least common multiple of the number of resource blocks comprised by a second frequency-domain resource unit in the set.
32. The apparatus of claim 30 or 31, 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.
33. A computer-readable storage medium, in which a computer program or instructions for implementing the method of any one of claims 1 to 13 is stored.
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| EP4211957A4 (en) * | 2020-10-22 | 2023-10-25 | Nokia Technologies Oy | Frequency domain resource allocation for multicast traffic |
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| CN113163441B (en) | 2023-10-03 |
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