CN106455081A - Resource allocation method and resource allocation device - Google Patents

Abstract

The present invention provides a resource configuration method and a resource configuration device, wherein the resource configuration method includes: notifying any terminal served by the base station of the first subcarrier interval used in communication, and notifying the any terminal of the The second subcarrier spacing used by other terminals served by the base station; allocating communication resources to all terminals served by the base station; If resources are allocated to other terminals, indicate the position of the resource block to any terminal according to the first subcarrier interval, and indicate the resource to any terminal according to the second subcarrier interval Part of the resources in the block that are allocated for use by other terminals. The technical solution of the present invention enables the base station to ensure the maximum utilization of resources when allocating resources to multiple terminals using different subcarrier intervals, and to accurately instruct the terminals to know the allocated communication resources.

Description

Resource allocation method and resource allocation device

technical field

The present invention relates to the technical field of communications, and in particular, to a resource configuration method and a resource configuration device.

Background technique

Existing 4G and 4.5G mobile communication technologies are based on LTE (Long Term Evolution, Long Term Evolution) and LTE-A (LTE-Advanced) wireless access technology, time-frequency resource granularity, and frame structure. For example, the current LTE system can support a maximum single-carrier bandwidth of 20 MHz. To support a larger bandwidth, it can only rely on the use of carrier aggregation (Carrier Aggregation, CA for short). In addition, the current frame structure mainly includes: FDD (Frequency Division Duplexing, frequency division duplexing) frame structure, TDD (Time Division Duplexing, time division duplexing) frame structure and LAA (LTE Assisted Access, LTE assisted access) unlicensed carrier use dynamic frame structure. Regardless of the frame structure, it includes 10 subframes, each subframe is 1ms, each subframe includes two slots (time slots), one slot is 0.5ms, and each slot includes 7 symbols (symbols). In the frequency domain, in the LTE system, the subcarrier spacing is mainly 15KHz, and one RB (Resource Block, resource block) includes 12 subcarriers. In NB-IoT (Narrow Band Internet of Things, cellular-based narrowband Internet of Things), a new 3.75KHz subcarrier spacing is proposed, and the carrier bandwidth of NB-IoT is only 180KHz.

In terms of resource allocation, both the FDD frame structure and the TDD frame structure use 1ms subframe as the time domain scheduling granularity, except that the DwPTS (Downlink Pilot Time Slot) in the special subframe in the TDD frame structure is used for When transmitting data, the time-domain scheduling granularity is less than 1ms. Similarly, in the frame structure used by the LAA unlicensed carrier, the downlink scheduling time domain granularity of multiplexing DwPTS as partial subframe also appears, and the scheduling granularity of the whole subframe of 1 ms is also used. In the FDD frame structure and the TDD frame structure, except for the special subframe in the TDD frame structure, which has both downlink transmission time and uplink transmission time, other subframes are either uplink transmission or downlink transmission, either in time domain or frequency domain. .

It can be seen that the current frame structure and the granularity of frequency domain resources will make the resource allocation not flexible enough, and the time interval between the uplink scheduling mechanism and the HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) feedback mechanism makes the delay larger. The 20MHz bandwidth does not meet the high bandwidth requirement either.

The main scenarios of future 5G communication include the following three: eMBB (enhanced Mobile Broadband, enhanced mobile broadband network), mMTC (massive Machine Type Communication, large-scale machine type communication) and URLLC (Ultra-Reliable and Low Latency Communications, high reliability and low latency) delay communication). These three scenarios target different business types and have different requirements. For example, the two main indicators of the eMBB service are high bandwidth and low latency. In future high-frequency communications, the eMBB service may support a large bandwidth of 100MHz, and it is likely that the entire bandwidth will be directly allocated to a user at a certain time. The uplink scheduling delay and HARQ feedback delay will also affect the delay; mMTC services require narrowband services and long battery life. Such services require smaller granularity in the frequency domain and wider granularity in the time domain. Resources; for URLLC services, it is also necessary to reduce the delay impact brought by uplink scheduling delay and HARQ feedback delay.

That is to say, due to the diversification of services, the current fixed frame structure, fixed frequency-domain resource granularity and time-domain resource granularity will cause a large uplink scheduling delay and a long HARQ feedback delay, and a small carrier The bandwidth cannot meet the diverse needs of the business, and 5G communication hopes to be flexible enough that any resource may be dynamically scheduled for use at any time.

At present, the following consensus has been reached in the discussion meeting for 5G: for different services on the same carrier, different subcarrier intervals can be used. Specifically as shown in FIG. 1 , if the minimum subcarrier spacing is f ₀ , followed by 2f ₀ , 4f ₀ and 8f ₀ , then the size of the corresponding RB (Resource Block, resource block) is also multiplied. In this case, for example, UE#1 uses f ₀ and only needs to use RB0 when f ₀ is used. At this time, no other user using f ₀ needs to allocate resources, only UE#2 using 2f ₀ , and When UE#2 uses 2f ₀ , some resources in RB0 have been used by UE#1, so whether the remaining resources need to be allocated to UE#2, and how to design signaling to inform UE# when it is allocated to UE#2 2 Which part has been used by other users is a technical problem to be solved urgently.

Contents of the invention

Based on at least one of the above technical problems, the present invention proposes a new resource allocation scheme, so that when the base station allocates resources to multiple terminals using different subcarrier intervals, it can ensure the maximum utilization of resources, and can accurately Instructing the terminal to know the allocated communication resources.

In view of this, according to the first aspect of the present invention, a resource configuration method is proposed, including: notifying any terminal served by the base station of the first subcarrier interval used in communication, and notifying the any terminal of the first subcarrier interval the second subcarrier spacing used by other terminals served by the base station; allocating communication resources to all terminals served by the base station; If some resources are allocated to other terminals, indicate the position of the resource block to any terminal according to the first subcarrier interval, and indicate the location of the resource block to any terminal according to the second subcarrier interval. Part of the resources allocated to other terminals in the resource block.

In this technical solution, when some resources in the resource blocks allocated to any terminal under the first subcarrier spacing used by it are allocated to other terminals, the allocation is indicated to the terminal according to the first subcarrier spacing. The position of the resource block of the resource block, and according to the second subcarrier interval, indicate to the terminal the part of resources allocated to other terminals in the resource block, so that when the base station allocates communication resources to terminals using different subcarrier intervals, it can be based on different The resource block granularity corresponding to the subcarrier spacing ensures the maximum utilization of resources, avoiding that a terminal using a larger subcarrier spacing only uses part of the resources in the larger resource block and the remaining part of the resources is no longer allocated to other terminals. The problem of waste of resources is caused, and the spectrum efficiency is improved. At the same time, the indication method proposed by the present invention can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

In the above technical solution, preferably, the second subcarrier spacing is less than or equal to the first subcarrier spacing, wherein the second subcarrier spacing is the minimum subcarrier spacing used in terminals served by the base station , or the second subcarrier spacing is a subcarrier spacing only smaller than the first subcarrier spacing used by terminals served by the base station.

In this technical solution, when the second subcarrier spacing is the minimum subcarrier spacing used by the terminals served by the base station, the above-mentioned other terminals may use other subcarrier spacings smaller than the first subcarrier spacing (which may be a or a plurality of terminals); and when the second subcarrier interval is only one subcarrier interval smaller than the first subcarrier interval used by the terminals served by the base station, the above-mentioned other terminals use the second subcarrier interval one or more terminals.

In any of the above technical solutions, preferably, the resource configuration method further includes: according to the ratio between the first subcarrier spacing and the second subcarrier spacing, determine whether to indicate to any terminal The number of bits of DCI (Downlink Control Information, downlink control information) signaling used when the resource block is allocated to some resources used by other terminals.

In this technical solution, since there is a multiple relationship between the subcarrier spacing, it can be determined according to the ratio between the first subcarrier spacing and the second subcarrier spacing (that is, the multiple relationship) to indicate to the terminal that in the resource block The number of DCI signaling bits used when allocating some resources used by other terminals. For example, if the ratio between the first subcarrier spacing and the second subcarrier spacing is 2, the number of bits in the DCI signaling is 2, that is, each bit corresponds to indicating whether one of the two resources is used by other terminals occupy.

In any of the above technical solutions, preferably, the step of notifying any terminal of the second subcarrier spacing used by other terminals served by the base station specifically includes:

Notifying the any terminal of the value of the second subcarrier spacing; or

Notifying the any terminal of the ratio between the first subcarrier spacing and the second subcarrier spacing.

In any of the above technical solutions, preferably, there are mainly the following two solutions for allocating communication resources to all terminals served by the base station:

Allocation plan one:

Allocating communication resources to all terminals served by the base station according to the resource block granularity corresponding to the minimum subcarrier spacing used in all terminals served by the base station.

Allocation plan two:

Allocating communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier spacing used by each of the terminals.

Further, in the case of allocating communication resources to each terminal through the second allocation scheme, it specifically includes:

According to the descending order of the used subcarrier spacing, allocate communication resources to each terminal in sequence, wherein, for a terminal using a larger subcarrier spacing, some resources in the resource blocks allocated to it are allowed to be used allocated to other terminals using smaller subcarrier spacing; or

According to the descending order of the used sub-carrier spacing, allocate communication resources to each terminal in turn, wherein, for terminals using a larger sub-carrier spacing, some resources in the resource blocks allocated to them are not allowed be reassigned to other terminals using smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, communication resources are allocated to each terminal in turn, wherein, some resources in the resource blocks allocated to terminals using larger subcarrier spacing are allowed to be allocated to users. other terminals with smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, the communication resources are allocated to each terminal in turn, wherein, resource blocks allocated to terminals using larger subcarrier spacing are not allowed to have resources Partial resources of other terminals with small subcarrier spacing.

Further, in the case of allocating communication resources to each terminal through allocation scheme 2, the number of bits of the above DCI signaling can be reduced in the following manner:

method one:

Consecutive resource blocks are allocated to at least one terminal among all terminals whose subcarrier spacing used is less than or equal to the first predetermined value.

In the first method, if the resource blocks allocated to at least one terminal whose subcarrier spacing is smaller (that is, less than or equal to the first predetermined value) are discontinuous, for example, the resources allocated to a certain terminal are under a larger subcarrier spacing If there are multiple discontinuous positions in the resource block, then after allocating the resource block to the terminal using the larger subcarrier spacing, it is necessary to indicate the resource block allocated to other terminals in a more detailed way. part, which in turn will cause a problem that the number of bits of the DCI signaling is relatively large, so it is possible to allocate as many continuous resource blocks as possible to a terminal using a smaller subcarrier spacing (less than or equal to the first predetermined value).

Method 2:

When it is necessary to allocate some resources in resource blocks under any subcarrier spacing to terminals using another subcarrier spacing, the ratio between the any subcarrier spacing and the other subcarrier spacing should be less than or equal to the second predetermined value.

In method 2, if the ratio between the two subcarrier intervals is larger, it means that the resource block granularities corresponding to the two subcarrier intervals are also quite different, for example, the ratio between subcarrier interval 1 and subcarrier interval 2 is 2 , UE#1 uses subcarrier spacing 1, UE#2 uses subcarrier spacing 2, then when UE#1 allocates a part (a total of two parts) of the resource blocks under subcarrier spacing 1 to UE#2, The base station only needs to indicate to UE#1 which part of the resource block is occupied by UE#2 through 2-bit DCI signaling. And if the ratio between subcarrier spacing 1 and subcarrier spacing 3 is 8, UE#1 uses subcarrier spacing 1, UE#3 uses subcarrier spacing 3, then the resource blocks of UE#1 under subcarrier spacing 1 When a part (a total of eight parts) of the resource block is allocated to UE#3, the base station needs to indicate to UE#1 whether each of the eight parts of the resource block is occupied by UE#3 through 8-bit DCI signaling, which obviously increases the DCI Signaling bits. Therefore, if it is necessary to allocate some resources in resource blocks under a certain subcarrier interval to terminals using another subcarrier interval, the ratio between the two subcarrier intervals should be as small as possible.

Method 3:

For resource blocks under a larger subcarrier spacing, if the remaining resources not allocated to terminals using a smaller subcarrier spacing are less than or equal to a third predetermined value, then it is not allowed to reassign the remaining resources to terminals using The terminal with the larger subcarrier spacing.

In mode 3, when there is only a small part of resource blocks left under a larger subcarrier spacing, if this part of resources is allocated to terminals using a larger subcarrier spacing, more bits of DCI information are required. Therefore, when there is only a small part of resources remaining in the resource blocks under the larger subcarrier spacing, this part of resources will not be allocated to the terminal using the larger subcarrier spacing.

In any of the above technical solutions, preferably, the resource configuration method further includes:

If none of the resources in the resource blocks allocated to the terminal under the first subcarrier interval used by the terminal are allocated to other terminals, only indicate to the terminal the resources of the resource blocks allocated to it. location; or

If none of the resources allocated to any terminal in the resource block under the first subcarrier interval used by it is allocated to other terminals, then indicate to any terminal the position of the resource block allocated to it. , and indicate to any terminal that there are no partial resources allocated to other terminals in the resource block.

In any of the above technical solutions, preferably, the first subcarrier spacing and the second subcarrier spacing are notified to any terminal through semi-static RRC (Radio Resource Control, radio resource control) signaling.

According to the second aspect of the present invention, a resource configuration method is also proposed, including: receiving the first subcarrier spacing used by the terminal notified by the base station when communicating, and the second subcarrier interval used by other terminals served by the base station interval; receiving resource configuration information sent by the base station; if the resource configuration information indicates the position of the resource block assigned by the base station to the terminal under the first subcarrier interval used by the terminal, and the If part of the resources in the resource block are used by other terminals at the second subcarrier interval, determine the resources in the resource block that are not used by the other terminal; according to the resources in the resource block that are not used by the other terminal resources to communicate.

In this technical solution, when the resource configuration information indicates the position of the resource block assigned by the base station to the terminal under the first subcarrier interval used by the terminal, and the part of the resource block used by other terminals at the second subcarrier interval resources, it shows that when the base station allocates resources, it is based on the consideration of maximizing the utilization of resource blocks, and allocates resources according to the granularity of resource blocks corresponding to different subcarrier intervals. This can prevent a terminal using a larger subcarrier interval from only A problem of waste of resources caused by using a part of resources in a larger resource block and not allocating the remaining part of resources to other terminals. At the same time, the indication manner of the base station can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

According to the third aspect of the present invention, a device for configuring resources is also proposed, including: a notification unit, configured to notify any terminal served by the base station of the first subcarrier interval used in communication, and to notify any terminal Informing the second subcarrier interval used by other terminals served by the base station; an allocation unit, configured to allocate communication resources to all terminals served by the base station; an indication unit, configured to allocate the communication resources to any terminal in the allocation unit When some resources in the resource blocks under the first subcarrier interval used by it are allocated to other terminals, indicate the position of the resource block to any terminal according to the first subcarrier interval, and according to The second subcarrier interval indicates to any terminal the part of resources allocated to other terminals in the resource block.

In this technical solution, when some resources in the resource blocks allocated to any terminal under the first subcarrier spacing used by it are allocated to other terminals, the allocation is indicated to the terminal according to the first subcarrier spacing. The position of the resource block of the resource block, and according to the second subcarrier interval, indicate to the terminal the part of resources allocated to other terminals in the resource block, so that when the base station allocates communication resources to terminals using different subcarrier intervals, it can be based on different The resource block granularity corresponding to the subcarrier spacing ensures the maximum utilization of resources, avoiding that a terminal using a larger subcarrier spacing only uses part of the resources in the larger resource block and the remaining part of the resources is no longer allocated to other terminals. The problem of waste of resources is caused, and the spectrum efficiency is improved. At the same time, the indication method proposed by the present invention can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

In the above technical solution, preferably, the second subcarrier spacing is less than or equal to the first subcarrier spacing, wherein the second subcarrier spacing is the minimum subcarrier spacing used in terminals served by the base station , or the second subcarrier spacing is a subcarrier spacing only smaller than the first subcarrier spacing used by terminals served by the base station.

In this technical solution, when the second subcarrier spacing is the minimum subcarrier spacing used by the terminals served by the base station, the above-mentioned other terminals may use other subcarrier spacings smaller than the first subcarrier spacing (which may be a or a plurality of terminals); and when the second subcarrier interval is only one subcarrier interval smaller than the first subcarrier interval used by the terminals served by the base station, the above-mentioned other terminals use the second subcarrier interval one or more terminals.

In any of the above technical solutions, preferably, the device for configuring resources further includes: a determining unit, configured to determine, according to the ratio between the first subcarrier spacing and the second subcarrier spacing, the The number of DCI signaling bits used when any of the terminals indicates the part of resources in the resource block allocated to other terminals.

In this technical solution, since there is a multiple relationship between the subcarrier spacing, it can be determined according to the ratio between the first subcarrier spacing and the second subcarrier spacing (that is, the multiple relationship) to indicate to the terminal that in the resource block The number of DCI signaling bits used when allocating some resources used by other terminals. For example, if the ratio between the first subcarrier spacing and the second subcarrier spacing is 2, the number of bits in the DCI signaling is 2, that is, each bit corresponds to indicating whether one of the two resources is used by other terminals occupy. .

In any of the above technical solutions, preferably, the notification unit is specifically configured to:

Notifying the any terminal of the value of the second subcarrier spacing; or

Notifying the any terminal of the ratio between the first subcarrier spacing and the second subcarrier spacing.

In any of the above technical solutions, preferably, the distribution unit is specifically used for:

Allocating communication resources to all terminals served by the base station according to the resource block granularity corresponding to the minimum subcarrier spacing used in all terminals served by the base station; or

Allocating communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier spacing used by each of the terminals.

Further, in the case where the allocating unit allocates communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier spacing used by each of the all terminals, the allocating unit is specifically further configured to: :

According to the descending order of the used subcarrier spacing, allocate communication resources to each terminal in sequence, wherein, for a terminal using a larger subcarrier spacing, some resources in the resource blocks allocated to it are allowed to be used allocated to other terminals using smaller subcarrier spacing; or

According to the descending order of the used sub-carrier spacing, allocate communication resources to each terminal in turn, wherein, for terminals using a larger sub-carrier spacing, some resources in the resource blocks allocated to them are not allowed be reassigned to other terminals using smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, communication resources are allocated to each terminal in turn, wherein, some resources in the resource blocks allocated to terminals using larger subcarrier spacing are allowed to be allocated to users. other terminals with smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, the communication resources are allocated to each terminal in turn, wherein, resource blocks allocated to terminals using larger subcarrier spacing are not allowed to have resources Partial resources of other terminals with small subcarrier spacing.

Further, in the case where the allocating unit allocates communication resources to each terminal according to the resource block granularity corresponding to the subcarrier spacing used by each terminal among all the terminals, in order to reduce the bits of the above-mentioned DCI signaling The allocation unit specifically allocates resources in the following ways:

method one:

Consecutive resource blocks are allocated to at least one terminal among all terminals whose subcarrier spacing used is less than or equal to the first predetermined value.

In the first method, if the resource blocks allocated to at least one terminal whose subcarrier spacing is smaller (that is, less than or equal to the first predetermined value) are discontinuous, for example, the resources allocated to a certain terminal are under a larger subcarrier spacing If there are multiple discontinuous positions in the resource block, then after allocating the resource block to the terminal using the larger subcarrier spacing, it is necessary to indicate the resource block allocated to other terminals in a more detailed way. part, which in turn will cause a problem that the number of bits of the DCI signaling is relatively large, so it is possible to allocate as many continuous resource blocks as possible to a terminal using a smaller subcarrier spacing (less than or equal to the first predetermined value).

Method 2:

When it is necessary to allocate some resources in resource blocks under any subcarrier spacing to terminals using another subcarrier spacing, the ratio between the any subcarrier spacing and the other subcarrier spacing should be less than or equal to the second predetermined value.

In method 2, if the ratio between the two subcarrier intervals is larger, it means that the resource block granularities corresponding to the two subcarrier intervals are also quite different, for example, the ratio between subcarrier interval 1 and subcarrier interval 2 is 2 , UE#1 uses subcarrier spacing 1, UE#2 uses subcarrier spacing 2, then when UE#1 allocates a part (a total of two parts) of the resource blocks under subcarrier spacing 1 to UE#2, The base station only needs to indicate to UE#1 which part of the resource block is occupied by UE#2 through 2-bit DCI signaling. And if the ratio between subcarrier spacing 1 and subcarrier spacing 3 is 8, UE#1 uses subcarrier spacing 1, UE#3 uses subcarrier spacing 3, then the resource blocks of UE#1 under subcarrier spacing 1 When a part (a total of eight parts) of the resource block is allocated to UE#3, the base station needs to indicate to UE#1 whether each of the eight parts of the resource block is occupied by UE#3 through 8-bit DCI signaling, which obviously increases the DCI Signaling bits. Therefore, if it is necessary to allocate some resources in resource blocks under a certain subcarrier interval to terminals using another subcarrier interval, the ratio between the two subcarrier intervals should be as small as possible.

Method 3:

For resource blocks under a larger subcarrier spacing, if the remaining resources not allocated to terminals using a smaller subcarrier spacing are less than or equal to a third predetermined value, then it is not allowed to reassign the remaining resources to terminals using The terminal with the larger subcarrier spacing.

In mode 3, when there is only a small part of resource blocks left under a larger subcarrier spacing, if this part of resources is allocated to terminals using a larger subcarrier spacing, more bits of DCI information are required. Therefore, when there is only a small part of resources remaining in the resource blocks under the larger subcarrier spacing, this part of resources will not be allocated to the terminal using the larger subcarrier spacing.

In any of the above technical solutions, preferably, the indicating unit is also used for:

If none of the resources in the resource blocks allocated by the allocating unit to any terminal under the first subcarrier interval used by it are allocated to other terminals, then only instruct the any terminal to allocate The location of the resource block of the ; or

If none of the resources in the resource blocks allocated by the allocating unit to any terminal under the first subcarrier interval used by it are allocated to other terminals, indicate to any terminal the resources allocated to it position of the resource block, and indicate to any terminal that there is no part of resources allocated to other terminals in the resource block.

In any of the above technical solutions, preferably, the notification unit is specifically configured to: notify any terminal of the first subcarrier spacing and the second subcarrier spacing through semi-static RRC signaling.

According to the fourth aspect of the present invention, a resource allocation device is also proposed, including: a first receiving unit, used to receive the first subcarrier spacing used by the terminal in communication notified by the base station, and other subcarrier intervals served by the base station The second subcarrier spacing used by the terminal; the second receiving unit, configured to receive resource configuration information sent by the base station; a determining unit, configured to determine the resource configuration information that indicates the base station allocates the terminal to the terminal in the When determining the position of the resource block under the first subcarrier interval used by the terminal and the part of resources in the resource block used by other terminals at the second subcarrier interval, it is determined that the resource block is not used by the other terminal A resource used by the terminal; a communication unit configured to perform communication according to resources in the resource block determined by the determining unit that are not used by the other terminal.

In this technical solution, when the resource configuration information indicates the position of the resource block assigned by the base station to the terminal under the first subcarrier interval used by the terminal, and the part of the resource block used by other terminals at the second subcarrier interval resources, it shows that when the base station allocates resources, it is based on the consideration of maximizing the utilization of resource blocks, and allocates resources according to the granularity of resource blocks corresponding to different subcarrier intervals. This can prevent a terminal using a larger subcarrier interval from only A problem of waste of resources caused by using a part of resources in a larger resource block and not allocating the remaining part of resources to other terminals. At the same time, the indication manner of the base station can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

Through the above technical solution, when the base station allocates resources to multiple terminals using different subcarrier intervals, it can ensure the maximum utilization of resources, and can accurately instruct the terminals to know the allocated communication resources.

Description of drawings

FIG. 1 shows a schematic diagram of different subcarrier spacings used by different users;

FIG. 2 shows a schematic flowchart of a resource allocation method according to a first embodiment of the present invention;

FIG. 3 shows a schematic structural diagram of a resource allocation device according to a first embodiment of the present invention;

Fig. 4 shows a schematic block diagram of a base station according to a first embodiment of the present invention;

FIG. 5 shows a schematic flowchart of a resource allocation method according to a second embodiment of the present invention;

FIG. 6 shows a schematic structural diagram of a resource allocation device according to a second embodiment of the present invention;

Fig. 7 shows a schematic block diagram of a terminal according to a first embodiment of the present invention;

FIG. 8 shows a schematic diagram of resource configuration results according to an embodiment of the present invention;

Fig. 9 shows a schematic block diagram of a base station according to a second embodiment of the present invention;

Fig. 10 shows a schematic block diagram of a terminal according to a second embodiment of the present invention.

detailed description

In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

Fig. 2 shows a schematic flowchart of a resource configuration method according to a first embodiment of the present invention, where the resource configuration method may be executed by a base station.

As shown in Figure 2, the resource configuration method according to the first embodiment of the present invention includes the following steps:

Step S20, notifying any terminal served by the base station of the first subcarrier spacing used in communication, and notifying the any terminal of the second subcarrier spacing used by other terminals served by the base station.

Preferably, the first sub-carrier spacing and the second sub-carrier spacing may be notified to any terminal through semi-static RRC signaling.

Wherein, the step of notifying any terminal of the second subcarrier spacing used by other terminals served by the base station specifically includes:

Notifying the any terminal of the value of the second subcarrier spacing; or

Notifying the any terminal of the ratio between the first subcarrier spacing and the second subcarrier spacing.

Step S22, allocating communication resources to all terminals served by the base station.

Step S24, if some resources in the resource blocks allocated to the any terminal under the first subcarrier spacing used by it are allocated to other terminals, then according to the first subcarrier spacing to the any terminal The terminal indicates the position of the resource block, and indicates to any terminal according to the second subcarrier interval the part of resources allocated to other terminals in the resource block.

In the technical solution shown in Figure 2, when some resources in the resource blocks allocated to any terminal under the first subcarrier spacing used by it are allocated to other terminals, the The terminal indicates the location of the allocated resource block, and indicates to the terminal the part of resources allocated to other terminals in the resource block according to the second subcarrier spacing, so that when the base station allocates communication resources to terminals using different subcarrier spacing , according to the granularity of resource blocks corresponding to different subcarrier intervals, the maximum utilization of resources can be ensured, avoiding that a terminal using a larger subcarrier interval only uses a part of resources in a larger resource block and the remaining part of resources is no longer used. The problem of resource waste caused by allocation to other terminals improves spectrum efficiency. At the same time, the indication method proposed by the present invention can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

Wherein, the above-mentioned second subcarrier spacing is less than or equal to the first subcarrier spacing, and on the basis of satisfying this condition, the second subcarrier spacing may specifically be the minimum subcarrier spacing used in terminals served by the base station, or Only one subcarrier interval smaller than the first subcarrier interval is used in the terminals served by the base station.

In this technical solution, when the second subcarrier spacing is the minimum subcarrier spacing used by the terminals served by the base station, the above-mentioned other terminals may use other subcarrier spacings smaller than the first subcarrier spacing (which may be a or a plurality of terminals); and when the second subcarrier interval is only one subcarrier interval smaller than the first subcarrier interval used by the terminals served by the base station, the above-mentioned other terminals use the second subcarrier interval one or more terminals.

In an embodiment of the present invention, the above resource configuration method further includes: according to the ratio between the first subcarrier spacing and the second subcarrier spacing, determining whether to indicate the resource to any terminal The number of DCI signaling bits used when the block is allocated to some resources used by other terminals.

In this embodiment, since there is a multiple relationship between the subcarrier spacing, it can be determined according to the ratio (that is, the multiple relationship) between the first subcarrier spacing and the second subcarrier spacing The number of DCI signaling bits used when allocating some resources used by other terminals. For example, if the ratio between the first subcarrier spacing and the second subcarrier spacing is 2, the number of bits in the DCI signaling is 2, that is, each bit corresponds to indicating whether one of the two resources is used by other terminals occupy.

Further, step S22 shown in FIG. 2 specifically has the following two allocation schemes:

Allocation plan one:

Allocating communication resources to all terminals served by the base station according to the resource block granularity corresponding to the minimum subcarrier spacing used in all terminals served by the base station.

Allocation plan two:

Allocating communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier spacing used by each of the terminals.

Further, in the case of allocating communication resources to each terminal through the second allocation scheme, it specifically includes:

According to the descending order of the used subcarrier spacing, allocate communication resources to each terminal in sequence, wherein, for a terminal using a larger subcarrier spacing, some resources in the resource blocks allocated to it are allowed to be used allocated to other terminals using smaller subcarrier spacing; or

According to the descending order of the used sub-carrier spacing, allocate communication resources to each terminal in turn, wherein, for terminals using a larger sub-carrier spacing, some resources in the resource blocks allocated to them are not allowed be reassigned to other terminals using smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, communication resources are allocated to each terminal in turn, wherein, some resources in the resource blocks allocated to terminals using larger subcarrier spacing are allowed to be allocated to users. other terminals with smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, the communication resources are allocated to each terminal in turn, wherein, resource blocks allocated to terminals using larger subcarrier spacing are not allowed to have resources Partial resources of other terminals with small subcarrier spacing.

Further, in the case of allocating communication resources to each terminal through allocation scheme 2, the number of bits of the above DCI signaling can be reduced in the following manner:

method one:

Consecutive resource blocks are allocated to at least one terminal among all terminals whose subcarrier spacing used is less than or equal to the first predetermined value.

In the first method, if the resource blocks allocated to at least one terminal whose subcarrier spacing is smaller (that is, less than or equal to the first predetermined value) are discontinuous, for example, the resources allocated to a certain terminal are under a larger subcarrier spacing If there are multiple discontinuous positions in the resource block, then after allocating the resource block to the terminal using the larger subcarrier spacing, it is necessary to indicate the resource block allocated to other terminals in a more detailed way. part, which in turn will cause a problem that the number of bits of the DCI signaling is relatively large, so it is possible to allocate as many continuous resource blocks as possible to a terminal using a smaller subcarrier spacing (less than or equal to the first predetermined value).

Method 2:

When it is necessary to allocate some resources in resource blocks under any subcarrier spacing to terminals using another subcarrier spacing, the ratio between the any subcarrier spacing and the other subcarrier spacing should be less than or equal to the second predetermined value.

In method 2, if the ratio between the two subcarrier intervals is larger, it means that the resource block granularities corresponding to the two subcarrier intervals are also quite different, for example, the ratio between subcarrier interval 1 and subcarrier interval 2 is 2 , UE#1 uses subcarrier spacing 1, UE#2 uses subcarrier spacing 2, then when UE#1 allocates a part (a total of two parts) of the resource blocks under subcarrier spacing 1 to UE#2, The base station only needs to indicate to UE#1 which part of the resource block is occupied by UE#2 through 2-bit DCI signaling. And if the ratio between subcarrier spacing 1 and subcarrier spacing 3 is 8, UE#1 uses subcarrier spacing 1, UE#3 uses subcarrier spacing 3, then the resource blocks of UE#1 under subcarrier spacing 1 When a part (a total of eight parts) of the resource block is allocated to UE#3, the base station needs to indicate to UE#1 whether each of the eight parts of the resource block is occupied by UE#3 through 8-bit DCI signaling, which obviously increases the DCI Signaling bits. Therefore, if it is necessary to allocate some resources in resource blocks under a certain subcarrier interval to terminals using another subcarrier interval, the ratio between the two subcarrier intervals should be as small as possible.

Method 3:

For resource blocks under a larger subcarrier spacing, if the remaining resources not allocated to terminals using a smaller subcarrier spacing are less than or equal to a third predetermined value, then it is not allowed to reassign the remaining resources to terminals using The terminal with the larger subcarrier spacing.

In mode 3, when there is only a small part of resource blocks left under a larger subcarrier spacing, if this part of resources is allocated to terminals using a larger subcarrier spacing, more bits of DCI information are required. Therefore, when there is only a small part of resources remaining in the resource blocks under the larger subcarrier spacing, this part of resources will not be allocated to the terminal using the larger subcarrier spacing.

In other embodiments of the present invention, the resource allocation method further includes:

If none of the resources in the resource blocks allocated to the terminal under the first subcarrier interval used by the terminal are allocated to other terminals, only indicate to the terminal the resources of the resource blocks allocated to it. location; or

If none of the resources allocated to any terminal in the resource block under the first subcarrier interval used by it is allocated to other terminals, then indicate to any terminal the position of the resource block allocated to it. , and indicate to any terminal that there are no partial resources allocated to other terminals in the resource block.

Fig. 3 shows a schematic structural diagram of a resource allocation device according to a first embodiment of the present invention.

As shown in FIG. 3 , the resource configuration apparatus 300 according to the first embodiment of the present invention includes: a notification unit 302 , an allocation unit 304 and an indication unit 306 .

Wherein, the notification unit 302 is used for notifying any terminal served by the base station of the first subcarrier spacing used in communication, and notifying the any terminal of the second subcarrier spacing used by other terminals served by the base station; The unit 304 is configured to allocate communication resources to all terminals served by the base station; the indicating unit 306 is configured to include in the resource blocks allocated by the allocation unit 304 to any terminal under the first subcarrier interval used by it When some resources are allocated to other terminals, indicate the location of the resource block to any terminal according to the first subcarrier interval, and indicate the location of the resource block to any terminal according to the second subcarrier interval. Part of the resources allocated to other terminals in the resource block.

In this technical solution, when some resources in the resource blocks allocated to any terminal under the first subcarrier spacing used by it are allocated to other terminals, the allocation is indicated to the terminal according to the first subcarrier spacing. The position of the resource block of the resource block, and according to the second subcarrier interval, indicate to the terminal the part of resources allocated to other terminals in the resource block, so that when the base station allocates communication resources to terminals using different subcarrier intervals, it can be based on different The resource block granularity corresponding to the subcarrier spacing ensures the maximum utilization of resources, avoiding that a terminal using a larger subcarrier spacing only uses part of the resources in the larger resource block and the remaining part of the resources is no longer allocated to other terminals. The problem of waste of resources is caused, and the spectrum efficiency is improved. At the same time, the indication method proposed by the present invention can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

In the above technical solution, preferably, the second subcarrier spacing is less than or equal to the first subcarrier spacing, wherein the second subcarrier spacing is the minimum subcarrier spacing used in terminals served by the base station , or the second subcarrier spacing is a subcarrier spacing only smaller than the first subcarrier spacing used by terminals served by the base station.

In this technical solution, when the second subcarrier spacing is the minimum subcarrier spacing used by the terminals served by the base station, the above-mentioned other terminals may use other subcarrier spacings smaller than the first subcarrier spacing (which may be a or a plurality of terminals); and when the second subcarrier interval is only one subcarrier interval smaller than the first subcarrier interval used by the terminals served by the base station, the above-mentioned other terminals use the second subcarrier interval one or more terminals.

In any of the above technical solutions, preferably, the resource allocation device 300 further includes: a determining unit 308, configured to determine the The number of bits of the DCI signaling used when indicating to any terminal the part of resources in the resource block allocated to other terminals.

In this technical solution, since there is a multiple relationship between the subcarrier spacing, it can be determined according to the ratio between the first subcarrier spacing and the second subcarrier spacing (that is, the multiple relationship) to indicate to the terminal that in the resource block The number of DCI signaling bits used when allocating some resources used by other terminals. For example, if the ratio between the first subcarrier spacing and the second subcarrier spacing is 2, the number of bits in the DCI signaling is 2, that is, each bit corresponds to indicating whether one of the two resources is used by other terminals occupy. .

In any of the above technical solutions, preferably, the notification unit 302 is specifically configured to:

Notifying the any terminal of the value of the second subcarrier spacing; or

Notifying the any terminal of the ratio between the first subcarrier spacing and the second subcarrier spacing.

In any of the above technical solutions, preferably, the allocation unit 304 is specifically configured to:

Allocating communication resources to all terminals served by the base station according to the resource block granularity corresponding to the minimum subcarrier spacing used in all terminals served by the base station; or

Allocating communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier spacing used by each of the terminals.

Further, in the case where the allocating unit 304 allocates communication resources to each terminal according to the resource block granularity corresponding to the subcarrier spacing used by each terminal among all the terminals, the allocating unit 304 specifically further Used for:

According to the descending order of the used subcarrier spacing, allocate communication resources to each terminal in sequence, wherein, for a terminal using a larger subcarrier spacing, some resources in the resource blocks allocated to it are allowed to be used allocated to other terminals using smaller subcarrier spacing; or

According to the descending order of the used sub-carrier spacing, allocate communication resources to each terminal in turn, wherein, for terminals using a larger sub-carrier spacing, some resources in the resource blocks allocated to them are not allowed be reassigned to other terminals using smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, communication resources are allocated to each terminal in turn, wherein, some resources in the resource blocks allocated to terminals using larger subcarrier spacing are allowed to be allocated to users. other terminals with smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, the communication resources are allocated to each terminal in turn, wherein, resource blocks allocated to terminals using larger subcarrier spacing are not allowed to have resources Partial resources of other terminals with small subcarrier spacing.

Further, in the case where the allocating unit 304 allocates communication resources to each terminal according to the resource block granularity corresponding to the subcarrier interval used by each terminal among all the terminals, in order to reduce the above-mentioned DCI signaling The number of bits, the allocation unit 304 specifically allocates resources in the following manner:

method one:

Consecutive resource blocks are allocated to at least one terminal among all terminals whose subcarrier spacing used is less than or equal to the first predetermined value.

In the first method, if the resource blocks allocated to at least one terminal whose subcarrier spacing is smaller (that is, less than or equal to the first predetermined value) are discontinuous, for example, the resources allocated to a certain terminal are under a larger subcarrier spacing If there are multiple discontinuous positions in the resource block, then after allocating the resource block to the terminal using the larger subcarrier spacing, it is necessary to indicate the resource block allocated to other terminals in a more detailed way. part, which in turn will cause a problem that the number of bits of the DCI signaling is relatively large, so it is possible to allocate as many continuous resource blocks as possible to a terminal using a smaller subcarrier spacing (less than or equal to the first predetermined value).

Method 2:

When it is necessary to allocate some resources in resource blocks under any subcarrier spacing to terminals using another subcarrier spacing, the ratio between the any subcarrier spacing and the other subcarrier spacing should be less than or equal to the second predetermined value.

In method 2, if the ratio between the two subcarrier intervals is larger, it means that the resource block granularities corresponding to the two subcarrier intervals are also quite different, for example, the ratio between subcarrier interval 1 and subcarrier interval 2 is 2 , UE#1 uses subcarrier spacing 1, UE#2 uses subcarrier spacing 2, then when UE#1 allocates a part (a total of two parts) of the resource blocks under subcarrier spacing 1 to UE#2, The base station only needs to indicate to UE#1 which part of the resource block is occupied by UE#2 through 2-bit DCI signaling. And if the ratio between subcarrier spacing 1 and subcarrier spacing 3 is 8, UE#1 uses subcarrier spacing 1, UE#3 uses subcarrier spacing 3, then the resource blocks of UE#1 under subcarrier spacing 1 When a part (a total of eight parts) of the resource block is allocated to UE#3, the base station needs to indicate to UE#1 whether each of the eight parts of the resource block is occupied by UE#3 through 8-bit DCI signaling, which obviously increases the DCI Signaling bits. Therefore, if it is necessary to allocate some resources in resource blocks under a certain subcarrier interval to terminals using another subcarrier interval, the ratio between the two subcarrier intervals should be as small as possible.

Method 3:

For resource blocks under a larger subcarrier spacing, if the remaining resources not allocated to terminals using a smaller subcarrier spacing are less than or equal to a third predetermined value, then it is not allowed to reassign the remaining resources to terminals using The terminal with the larger subcarrier spacing.

In mode 3, when there is only a small part of resource blocks left under a larger subcarrier spacing, if this part of resources is allocated to terminals using a larger subcarrier spacing, more bits of DCI information are required. Therefore, when there is only a small part of resources remaining in the resource blocks under the larger subcarrier spacing, this part of resources will not be allocated to the terminal using the larger subcarrier spacing.

In any of the above technical solutions, preferably, the indicating unit 306 is further configured to:

If none of the resources in the resource blocks allocated by the allocating unit 304 to any terminal under the first subcarrier interval used by it are allocated to other terminals, then only indicate to any terminal that the location of the allocated resource block; or

If none of the resources in the resource blocks allocated by the allocating unit 304 to the any terminal under the first subcarrier interval used by it are allocated to other terminals, then instruct the any terminal to allocate position of the resource block, and indicate to any terminal that there is no part of resources allocated to other terminals in the resource block.

In any of the above technical solutions, preferably, the notification unit 302 is specifically configured to: notify any terminal of the first subcarrier spacing and the second subcarrier spacing through semi-static RRC signaling.

Fig. 4 shows a schematic block diagram of a base station according to the first embodiment of the present invention.

As shown in FIG. 4 , the base station 400 according to the first embodiment of the present invention includes: the resource configuration apparatus 300 shown in FIG. 3 .

Fig. 5 shows a schematic flowchart of a resource configuration method according to a second embodiment of the present invention, where the resource configuration method may be executed by a terminal.

As shown in Figure 5, the resource configuration method according to the second embodiment of the present invention includes the following steps:

Step S50, receiving the first subcarrier spacing used by the terminal notified by the base station when communicating, and the second subcarrier spacing used by other terminals served by the base station.

Step S52, receiving resource configuration information sent by the base station.

Step S54, if the resource configuration information indicates the position of the resource block assigned by the base station to the terminal under the first subcarrier interval used by the terminal, and the resource block is used by other terminals in the For the part of resources used by the second subcarrier interval, determine the resources in the resource block that are not used by the other terminals.

Step S56, performing communication according to resources in the resource block that are not used by other terminals.

In the technical solution shown in Figure 5, when the resource configuration information indicates the position of the resource block allocated by the base station to the terminal under the first subcarrier interval used by the terminal, and the second subcarrier used by other terminals in the resource block When some resources are used at intervals, it means that when the base station allocates resources, it is based on the consideration of maximizing the utilization of resource blocks, and allocates according to the granularity of resource blocks corresponding to different subcarrier intervals, so as to avoid the use of a larger subcarrier Interval terminals only use a part of the resources in a larger resource block and the remaining part of the resources are not allocated to other terminals, resulting in resource waste. At the same time, the indication manner of the base station can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

Fig. 6 shows a schematic structural diagram of a resource allocation device according to a second embodiment of the present invention.

As shown in FIG. 6 , the resource configuration apparatus 600 according to the second embodiment of the present invention includes: a first receiving unit 602 , a second receiving unit 604 , a determining unit 606 and a communication unit 608 .

Among them, the first receiving unit 602 is used to receive the first subcarrier spacing used by the terminal notified by the base station when communicating, and the second subcarrier spacing used by other terminals served by the base station; the second receiving unit 604 is used to receive The resource configuration information sent by the base station; the determining unit 606 is configured to indicate the position of the resource block allocated by the base station to the terminal under the first subcarrier interval used by the terminal when the resource configuration information indicates, and When some resources in the resource block are used by other terminals at the second subcarrier interval, determine resources in the resource block that are not used by the other terminal; the communication unit 608 is configured to determine according to the determination unit 606 communicate with the resources in the resource block that are not used by the other terminal.

In this technical solution, when the resource configuration information indicates the position of the resource block assigned by the base station to the terminal under the first subcarrier interval used by the terminal, and the part of the resource block used by other terminals at the second subcarrier interval resources, it shows that when the base station allocates resources, it is based on the consideration of maximizing the utilization of resource blocks, and allocates resources according to the granularity of resource blocks corresponding to different subcarrier intervals. This can prevent a terminal using a larger subcarrier interval from only A problem of waste of resources caused by using a part of resources in a larger resource block and not allocating the remaining part of resources to other terminals. At the same time, the indication manner of the base station can also ensure that the terminal can accurately know the communication resources allocated to itself, so that the terminal can receive or send data through the allocated communication resources.

Fig. 7 shows a schematic block diagram of a terminal according to the first embodiment of the present invention.

As shown in FIG. 7 , a terminal 700 according to the first embodiment of the present invention includes: the resource configuration apparatus 600 shown in FIG. 6 .

It can be seen that the technical solution of the present invention is mainly aimed at the situation that multiple users in 5G NR (New Radio, new wireless technology) use multiple different subcarrier spacings, and proposes a corresponding allocation method of frequency domain resources and a signaling indication method ,details as follows:

1. The method of base station resource allocation:

For the resource allocation method, the present invention proposes the following two schemes:

Resource allocation scheme 1: Scheduling is performed according to the granularity of RB formed by the minimum subcarrier spacing used in the terminal.

Specifically, for example, when the subcarrier spacing used by the terminal is f ₀ , the number of RBs is 100, numbered from 0 to 99, and these RBs can be defined as RB(1, i), where 1 means that the subcarrier spacing is 1 times f ₀ , the value of i is 0~99; when the subcarrier spacing used by the terminal is 2f ₀ , the number of RBs is 50, and these RBs are defined as RB(2, j), where 2 means that the subcarrier spacing is twice f ₀ , j ranges from 0 to 49; when the subcarrier spacing used by the terminal is 4f ₀ , the number of RBs is 25, and these RBs are defined as RB(4, j), where 4 means that the subcarrier spacing is 4 times The value of f ₀ , j ranges from 0 to 24;  …

According to the above definition, RB(4,0) is composed of RB(2,0) and RB(2,1); RB(2,0) is composed of RB(1,0) and RB(1,1) .

Taking three users as an example, and UE#1 uses subcarrier spacing f ₀ , UE#2 uses subcarrier spacing 2f ₀ , and UE#3 uses subcarrier spacing 4f ₀ , if the minimum subcarrier spacing used in the terminal is formed RB is used for scheduling at a granularity, and there may be an allocation result as shown in Figure 8, which is as follows:

UE#1: RB(1, 7), RB(1, 8);

UE#2: RB(1, 6);

UE#3: RB(1, 9), RB(1, 10), RB(1, 11).

Resource allocation scheme 2: Scheduling is performed according to the granularity of RB formed by the subcarrier spacing of each terminal itself.

Specifically, for example, if the subcarrier spacing used by UE#1 and UE#4 is f ₀ , then UE#1 and UE#4 are f ₀ user groups; the subcarrier spacing used by UE#2 and UE#5 is 2f ₀ , Then UE#2 and UE#5 are 2f ₀ user group; UE#3 and UE#6 use subcarrier spacing as 4f ₀ , then UE#3 and UE#6 are 4f ₀ user group.

It is assumed that the above-mentioned UEs have the same priority in obtaining resources, that is to say, these UEs may have different delay requirements, but the base station determines according to the delay requirements as long as they can be scheduled to resources in this subframe. In addition, the base station is also clear about how much bandwidth these UEs need to obtain in this subframe. How much bandwidth each UE needs to obtain in this subframe is based on the QoS (Quality of Service) of each UE and the transmitted data. and the amount of data to be transmitted are determined.

On the basis of the above assumptions, resource allocation is then carried out according to different groups, which is divided into multiple situations:

Case 1:

The user with the largest subcarrier spacing is allocated first, and the previously allocated resources can be allocated to the subsequent users. That is, according to the order of the used subcarrier spacing from large to small, communication resources are allocated to each user in turn. Among them, for users using larger subcarrier spacing, some resources in the resource blocks allocated to them are allowed to be allocated to other users using smaller subcarrier spacing.

Taking Figure 8 as an example, since the subcarrier spacing used by UE#3 is the largest, UE#3 allocates resources first, assuming that RB(4,2) is allocated to UE#3, and then allocates resources to UE#2. #2 allocates RB(2,3), and finally allocates resources to UE#1. Since the previously allocated resources can be allocated to subsequent users, RB(1,7) and RB(1, 8), that is, allocate part of resources in RB(2,3) and RB(4,2) to UE#1.

Case two:

The user with the largest subcarrier spacing is allocated first, and the previously allocated resources cannot be allocated to the subsequent users. That is, according to the order of the used subcarrier spacing from large to small, communication resources are allocated to each user in turn. Among them, for users using larger subcarrier spacing, part of the resources in the resource blocks allocated to them are not allowed to be reused. Allocated to other users using smaller subcarrier spacing.

Since previously allocated resources cannot be allocated to subsequent users, the allocation of RB(1,7) and RB(1,8) to UE#1 in Figure 8 does not occur in this allocation scheme.

Case three:

The user with the smallest subcarrier spacing is allocated first, and the previously allocated resources may be part of RBs with a large subcarrier spacing, and can be allocated to subsequent users. That is, according to the order of the used subcarrier spacing from small to large, communication resources are allocated to each user in sequence, wherein, some resources are allowed to be allocated to users using larger subcarrier spacing. Other users with small subcarrier spacing.

Taking Figure 8 as an example, since the subcarrier spacing used by UE#1 is the smallest, resources are allocated to UE#1 first, assuming that RB(1,7) and RB(1,8) are allocated to UE#1; #2 allocates resources, since RB(1,7) is a part of RB(2,3), in order to ensure the maximum utilization of resources, the remaining resources in RB(2,3) can be allocated to UE#2; similarly Specifically, when allocating resources to UE#3, the part of RB(4,2) not occupied by UE#1 may be allocated to UE#3.

Situation 4:

The user with the smallest subcarrier spacing is allocated first, and the previously allocated resources may be part of RBs with a large subcarrier spacing, and cannot be allocated to subsequent users. That is, according to the order of the used subcarrier spacing from small to large, communication resources are allocated to each user in turn, wherein, resource blocks allocated to users using larger subcarrier spacing are not allowed to exist that have been allocated to users using smaller subcarrier spacing. Part of the resources of other users with the subcarrier spacing of .

Since the previously allocated resources cannot be allocated to subsequent users, this allocation scheme does not appear in Figure 8 where RB(2,3) is allocated to UE#2 and RB(4,2) is allocated to UE#3 Condition.

2. Resource signaling indication method:

For the resource allocation scenario shown in Figure 8, when the base station indicates to each user through DCI signaling, it is easy to indicate to UE#1, directly indicating RB(1,7) and RB(1,8) as its allocated resources. But for UE#2, the DCI signaling needs to indicate that RB(2,3) is allocated to UE#2, and at the same time, it needs to indicate that RB(1,7) in RB(2,3) is not allocated to UE#2. Also for UE#3, the DCI signaling needs to indicate that RB(4,2) is allocated to UE#3, and at the same time, it needs to indicate that RB(1,8) in RB(4,2) is not allocated to UE#3. That is to say, for a user with a large subcarrier spacing, in addition to indicating which RBs are occupied, it is also necessary to indicate whether each RB is occupied by other users.

In this regard, the corresponding indication method is: first inform the user of the subcarrier spacing value f1 used when sending and receiving data through semi-static RRC signaling, and at the same time inform the user of the minimum subcarrier spacing value f2 used among users under the base station Or inform the user of the ratio f1/f2 of f1 and f2, the following uses the ratio as an example to illustrate:

1. If the ratio is 1, there is no need to additionally indicate whether there is a part of the RB occupied by other users, that is, the DCI signaling used to indicate which part of the RB allocated to the user is occupied by other users is 0;

2. If the ratio is 2, 2-bit DCI signaling is required to inform whether each half of the RB allocated to the user is occupied by other users;

3. If the ratio is 4, 4-bit DCI signaling is required to divide the RB into 4 parts and inform the user which parts of the RB are occupied by other users. Among them, there are at most 14 situations in which RBs are occupied, and there are 4 situations in which a part of them is occupied; there are 6 situations in which two parts are occupied; and there are 4 situations in which three parts are occupied. If users who are restricted to use smaller subcarrier intervals are allocated continuous RBs as much as possible, there will be fewer cases where RBs are occupied. There are 3 types, and there are 2 cases where the three parts are occupied.

Considering that the sub-carrier interval is 3.75-480 KHz, the maximum possible ratio is 128. At this time, when it is necessary to indicate which part of the RB is allocated to other users, a very large number of bits is required. In order to reduce the number of bits, the base station needs to adopt some principles when allocating RBs, such as:

①Users using smaller subcarrier spacing should try to allocate continuous RBs;

② If a part of the RBs using the subcarrier spacing of f1 is extracted for another user, the value of f1/f2 should be as small as possible;

③ If more parts of resource blocks under a certain large subcarrier spacing are allocated to other users, then the remaining part should not be allocated to users using large subcarrier spacing.

In addition, as another indication method of the present invention, the semi-static RRC signaling can also be used to inform the user of the subcarrier spacing value f1 used when sending and receiving data, and at the same time inform the user of the subcarrier spacing value f1 used among the users under the base station. The subcarrier spacing value f3 with a smaller subcarrier spacing f1 or the ratio f1/f3 of f1 to f3 is notified to the user, and the subsequent indication method is similar to the above.

Fig. 9 shows a schematic block diagram of a base station according to a second embodiment of the present invention.

As shown in FIG. 9 , the base station according to the second embodiment of the present invention includes: a processor 1 , an output device 3 and a memory 5 . In some embodiments of the present invention, the processor 1 , the output device 3 and the memory 5 may be connected through a bus 4 or in other ways. In FIG. 9 , the connection through the bus 4 is taken as an example.

Wherein, the memory 5 is used to store a set of program codes, and the processor 1 invokes the program codes stored in the memory 5 to perform the following operations:

Informing any terminal served by the base station of the first subcarrier spacing used in communication through the output device 3, and notifying the any terminal of the second subcarrier spacing used by other terminals served by the base station;

allocating communication resources to all terminals served by the base station;

If some resources in the resource blocks allocated to any terminal under the first subcarrier spacing used by it are allocated to other terminals, then indicate to any terminal the resource blocks according to the first subcarrier spacing. position of the resource block, and indicate to any terminal according to the second subcarrier interval the part of resources in the resource block allocated to other terminals.

As an optional implementation manner, the processor 1 calls the program code stored in the memory 5, and is also used to perform the following operations:

According to the ratio between the first subcarrier spacing and the second subcarrier spacing, determine the DCI signal used when indicating to any terminal the part of resources in the resource block allocated to other terminals command bits.

As an optional implementation manner, the processor 1 invokes the program code stored in the memory 5 to perform an operation of notifying any terminal of the second subcarrier spacing used by other terminals served by the base station, specifically:

Notifying the arbitrary terminal of the value of the second subcarrier spacing through the output device 3; or

Informing any terminal of the ratio between the first subcarrier spacing and the second subcarrier spacing via the output device 3 .

As an optional implementation manner, the processor 1 invokes the program code stored in the memory 5 to perform an operation of allocating communication resources to all terminals served by the base station, specifically:

Allocating communication resources to all terminals served by the base station according to the resource block granularity corresponding to the minimum subcarrier spacing used in all terminals served by the base station; or

Allocating communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier spacing used by each of the terminals.

As an optional implementation manner, in the case of allocating communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier interval used by each of the terminals, the processor 1 calls the memory 5 The program code stored in is also used to do the following:

According to the descending order of the used subcarrier spacing, allocate communication resources to each terminal in sequence, wherein, for a terminal using a larger subcarrier spacing, some resources in the resource blocks allocated to it are allowed to be used allocated to other terminals using smaller subcarrier spacing; or

According to the descending order of the used sub-carrier spacing, allocate communication resources to each terminal in turn, wherein, for terminals using a larger sub-carrier spacing, some resources in the resource blocks allocated to them are not allowed be reassigned to other terminals using smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, communication resources are allocated to each terminal in turn, wherein, some resources in the resource blocks allocated to terminals using larger subcarrier spacing are allowed to be allocated to users. other terminals with smaller subcarrier spacing; or

According to the order of the used subcarrier spacing from small to large, the communication resources are allocated to each terminal in turn, wherein, resource blocks allocated to terminals using larger subcarrier spacing are not allowed to have resources Partial resources of other terminals with small subcarrier spacing.

As an optional implementation manner, in the case of allocating communication resources to each of the terminals according to the resource block granularity corresponding to the subcarrier interval used by each of the terminals, the processor 1 calls the memory 5 The program code stored in is also used to do the following:

Allocating consecutive resource blocks to at least one terminal among all terminals whose subcarrier spacing used is less than or equal to a first predetermined value; and/or

When it is necessary to allocate some resources in resource blocks under any subcarrier spacing to terminals using another subcarrier spacing, the ratio between the any subcarrier spacing and the other subcarrier spacing should be less than or is equal to a second predetermined value; and/or

For resource blocks under a larger subcarrier spacing, if the remaining resources not allocated to terminals using a smaller subcarrier spacing are less than or equal to a third predetermined value, then it is not allowed to reassign the remaining resources to terminals using The terminal with the larger subcarrier spacing.

As an optional implementation manner, the processor 1 calls the program code stored in the memory 5, and is also used to perform the following operations:

If none of the resources in the resource blocks allocated to the terminal under the first subcarrier interval used by the terminal are allocated to other terminals, only indicate to the terminal the resources of the resource blocks allocated to it. location; or

If none of the resources allocated to any terminal in the resource block under the first subcarrier interval used by it is allocated to other terminals, then indicate to any terminal the position of the resource block allocated to it. , and indicate to any terminal that there are no partial resources allocated to other terminals in the resource block.

As an optional implementation manner, the processor 1 invokes the program code stored in the memory 5, and is specifically configured to perform the following operations: notify any terminal of the first subcarrier spacing and The second subcarrier spacing.

Fig. 10 shows a schematic block diagram of a terminal according to a second embodiment of the present invention.

As shown in FIG. 10, the terminal according to the second embodiment of the present invention includes: a processor 1', an input device 2' and a memory 5'. In some embodiments of the present invention, the processor 1 ′, the input device 2 ′ and the memory 5 ′ can be connected through a bus 4 ′ or in other ways. In FIG. 10 , the connection through the bus 4 ′ is taken as an example.

Wherein, the memory 5' is used to store a set of program codes, and the processor 1' invokes the program codes stored in the memory 5' to perform the following operations:

receiving the first subcarrier spacing used by the terminal notified by the base station during communication through the input device 2', and the second subcarrier spacing used by other terminals served by the base station;

receiving resource configuration information sent by the base station through the input device 2';

If the resource configuration information indicates the position of the resource block assigned by the base station to the terminal under the first subcarrier interval used by the terminal, and the resource block in the resource block is used by other terminals with the second part of the resources used by the carrier interval, then determine the resources in the resource block that are not used by the other terminals;

performing communication according to resources in the resource block not used by the other terminal.

The steps in the methods of the embodiments of the present invention can be adjusted, combined and deleted according to actual needs.

Units in the resource configuration apparatus, terminal and base station in the embodiments of the present invention can be combined, divided and deleted according to actual needs.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium includes read-only Memory (Read-Only Memory, ROM), Random Access Memory (Random Access Memory, RAM), Programmable Read-Only Memory (Programmable Read-only Memory, PROM), Erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), One-time Programmable Read-Only Memory (OTPROM), Electronically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CompactDisc Read -Only Memory, CD-ROM) or other optical disk storage, magnetic disk storage, tape storage, or any other computer-readable medium that can be used to carry or store data.

The above describes the technical solution of the present invention in detail in conjunction with the accompanying drawings. The present invention proposes a new resource allocation scheme, so that the base station can ensure the maximum utilization of resources when allocating resources to multiple terminals using different subcarrier intervals. And it can accurately instruct the terminal to know the allocated communication resources.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (20)

1. a kind of device for allocating resources, it is characterised in that include：

Notification unit, the first subcarrier spacing that any terminal for notifying base station service is used when communicating, and to Any terminal notifies the second subcarrier spacing that other terminals of base station service are used；

Allocation unit, for all terminal distribution communication resources for servicing to the base station；

Indicating member, for distributing to any terminal in the allocation unit under its first subcarrier spacing for using Resource Block in when having part resource to be assigned to other terminals and use, according to first subcarrier spacing to arbitrary end End indicates the position of the Resource Block, and is indicated in the Resource Block to any terminal according to second subcarrier spacing It is assigned to the part resource that other terminals are used.

2. device for allocating resources according to claim 1, it is characterised in that second subcarrier spacing is less than or equal to First subcarrier spacing,

Wherein, second subcarrier spacing is the minimum subcarrier spacing used in the terminal of base station service, or described Second subcarrier spacing is that only little than first subcarrier spacing used in the terminal of base station service is carried Wave spacing.

3. device for allocating resources according to claim 1, it is characterised in that also include：

Determining unit, for according to the ratio between first subcarrier spacing and second subcarrier spacing, determining The DCI signaling for being used when indicating to be assigned to, to any terminal, the part resource that other terminals use in the Resource Block Bit number.

4. device for allocating resources according to claim 1, it is characterised in that the notification unit specifically for：

The numerical value of second subcarrier spacing is notified to any terminal；Or

The ratio between first subcarrier spacing and second subcarrier spacing is notified to any terminal.

5. device for allocating resources according to claim 1, it is characterised in that the allocation unit specifically for：

The corresponding Resource Block granularity of minimum subcarrier spacing according to used in all terminals of base station service, to the institute There is the terminal distribution communication resource；Or

The corresponding Resource Block granularity of the subcarrier spacing that used according to each terminal in all terminals, to described each eventually The end distribution communication resource.

6. device for allocating resources according to claim 5, it is characterised in that in the allocation unit according to all ends The corresponding Resource Block granularity of subcarrier spacing that each terminal in end is used, to the feelings of each terminal distribution communication resource Under condition, the allocation unit is specifically additionally operable to：

According to the subcarrier spacing for being used order from big to small, successively to each terminal distribution communication resource described, wherein, For the terminal using larger subcarrier spacing, the part resource in the Resource Block which distributes allows to be assigned to using relatively Other terminals of little subcarrier spacing；Or

According to the subcarrier spacing for being used order from big to small, successively to each terminal distribution communication resource described, wherein, For the terminal using larger subcarrier spacing, the part resource in the Resource Block which distributes does not allow to be assigned to again to make Other terminals with less subcarrier spacing；Or

According to the subcarrier spacing for being used order from small to large, successively to each terminal distribution communication resource described, wherein, Part resource has been allowed to be already allocated to using less in the Resource Block of the terminal distribution using larger subcarrier spacing Other terminals of subcarrier spacing；Or

According to the subcarrier spacing for being used order from small to large, successively to each terminal distribution communication resource described, wherein, Presence is not allowed to be already allocated to using less sub- load in the Resource Block of the terminal distribution using larger subcarrier spacing The part resource of other terminals of wave spacing.

7. device for allocating resources according to claim 5, it is characterised in that in the allocation unit according to all ends The corresponding Resource Block granularity of subcarrier spacing that each terminal in end is used, to the feelings of each terminal distribution communication resource Under condition, the allocation unit is specifically additionally operable to：

Connect at least one terminal distribution of the subcarrier spacing used in all terminals less than or equal to first predetermined value Continuous Resource Block；And/or

Needing the part resource in the Resource Block under arbitrary subcarrier spacing is distributed to the end using another subcarrier spacing During end, the ratio between arbitrary subcarrier spacing and another subcarrier spacing should make a reservation for less than or equal to second Value；And/or

For the Resource Block under larger subcarrier spacing, if the terminal being wherein not allocated to using less subcarrier spacing Surplus resources be less than or equal to third predetermined value, then do not allow the surplus resources are reallocated to using the larger son The terminal at carrier wave interval.

8. device for allocating resources according to any one of claim 1 to 7, it is characterised in that the indicating member is also used In：

If in the Resource Block under its first subcarrier spacing for using that the allocation unit is distributed to any terminal Resource is all not allocated to other terminals and uses, then only indicate the position to its Resource Block for distributing to any terminal；Or

If in the Resource Block under its first subcarrier spacing for using that the allocation unit is distributed to any terminal Resource is all not allocated to other terminals and uses, then indicate the position to its Resource Block for distributing to any terminal, and to Any terminal indicates there is no the part resource for distributing to that other terminals are used in the Resource Block.

9. device for allocating resources according to any one of claim 1 to 7, it is characterised in that the notification unit is concrete For：First subcarrier spacing and second subcarrier are notified to any terminal by semi-static RRC signaling Interval.

10. a kind of device for allocating resources, it is characterised in that include：

First receiving unit, the first subcarrier spacing that the terminal for receiving base station notice is used when communicating, and The second subcarrier spacing that other terminals of the base station service are used；

Second receiving unit, for receiving the resource allocation information of base station transmission；

Determining unit, makes in the terminal to the terminal distribution for indicating the base station in the resource allocation information By other terminals with second subcarrier in the position of the Resource Block under the first subcarrier spacing, and the Resource Block During the part resource that interval uses, the resource not used by other terminals described in the Resource Block is determined；

Communication unit, for the resource not used by other terminals described in the Resource Block that determined according to the determining unit Communicated.

11. a kind of resource allocation methods, it is characterised in that include：

The first subcarrier spacing for notifying any terminal of base station service to be used when communicating, and logical to any terminal Know the second subcarrier spacing that other terminals of base station service are used；

All terminal distribution communication resources to base station service；

If to any terminal distribution its using the first subcarrier spacing under Resource Block in have part resource to be divided Other terminals of dispensing are used, then indicate the position of the Resource Block to any terminal according to first subcarrier spacing, And indicate to be assigned to what other terminals were used in the Resource Block to any terminal according to second subcarrier spacing Part resource.

12. resource allocation methods according to claim 11, it is characterised in that second subcarrier spacing is less than or waits In first subcarrier spacing,

Wherein, second subcarrier spacing is the minimum subcarrier spacing used in the terminal of base station service, or described Second subcarrier spacing is that only little than first subcarrier spacing used in the terminal of base station service is carried Wave spacing.

13. resource allocation methods according to claim 11, it is characterised in that also include：

According to the ratio between first subcarrier spacing and second subcarrier spacing, determine to any terminal Indicate to be assigned to the bit number of the DCI signaling for being used during the part resource that other terminals use in the Resource Block.

14. resource allocation methods according to claim 11, it is characterised in that notify the base station to any terminal The step of the second subcarrier spacing that other terminals of service are used, specifically include：

The numerical value of second subcarrier spacing is notified to any terminal；Or

The ratio between first subcarrier spacing and second subcarrier spacing is notified to any terminal.

15. resource allocation methods according to claim 11, it is characterised in that all terminals to base station service are divided The step of joining the communication resource, specifically include：

The corresponding Resource Block granularity of minimum subcarrier spacing according to used in all terminals of base station service, to the institute There is the terminal distribution communication resource；Or

The corresponding Resource Block granularity of the subcarrier spacing that used according to each terminal in all terminals, to described each eventually The end distribution communication resource.

16. resource allocation methods according to claim 15, it is characterised in that according to each in all terminals The corresponding Resource Block granularity of subcarrier spacing that terminal is used, to each terminal distribution communication resource described in the case of, also wraps Include：

According to the subcarrier spacing for being used order from big to small, successively to each terminal distribution communication resource described, wherein, For the terminal using larger subcarrier spacing, the part resource in the Resource Block which distributes allows to be assigned to using relatively Other terminals of little subcarrier spacing；Or

According to the subcarrier spacing for being used order from big to small, successively to each terminal distribution communication resource described, wherein, For the terminal using larger subcarrier spacing, the part resource in the Resource Block which distributes does not allow to be assigned to again to make Other terminals with less subcarrier spacing；Or

According to the subcarrier spacing for being used order from small to large, successively to each terminal distribution communication resource described, wherein, Part resource has been allowed to be already allocated to using less in the Resource Block of the terminal distribution using larger subcarrier spacing Other terminals of subcarrier spacing；Or

According to the subcarrier spacing for being used order from small to large, successively to each terminal distribution communication resource described, wherein, Presence is not allowed to be already allocated to using less sub- load in the Resource Block of the terminal distribution using larger subcarrier spacing The part resource of other terminals of wave spacing.

17. resource allocation methods according to claim 15, it is characterised in that according to each in all terminals The corresponding Resource Block granularity of subcarrier spacing that terminal is used, to each terminal distribution communication resource described in the case of, also wraps Include：

Connect at least one terminal distribution of the subcarrier spacing used in all terminals less than or equal to first predetermined value Continuous Resource Block；And/or

Needing the part resource in the Resource Block under arbitrary subcarrier spacing is distributed to the end using another subcarrier spacing During end, the ratio between arbitrary subcarrier spacing and another subcarrier spacing should make a reservation for less than or equal to second Value；And/or

For the Resource Block under larger subcarrier spacing, if the terminal being wherein not allocated to using less subcarrier spacing Surplus resources be less than or equal to third predetermined value, then do not allow the surplus resources are reallocated to using the larger son The terminal at carrier wave interval.

18. resource allocation methods according to any one of claim 11 to 17, it is characterised in that also include：

If all not divided to the resource in the Resource Block under its first subcarrier spacing for using of any terminal distribution Other terminals of dispensing are used, then only indicate the position to its Resource Block for distributing to any terminal；Or

If all not divided to the resource in the Resource Block under its first subcarrier spacing for using of any terminal distribution Other terminals of dispensing are used, then indicate the position to its Resource Block for distributing to any terminal, and to any terminal Indicate in the Resource Block, there is no the part resource for distributing to that other terminals are used.

19. resource allocation methods according to any one of claim 11 to 17, it is characterised in that by semi-static RRC signaling notifies first subcarrier spacing and second subcarrier spacing to any terminal.

20. a kind of resource allocation method, it is characterised in that include：

The first subcarrier spacing that the terminal of base station notice is used, and other of base station service are received when communicating The second subcarrier spacing that terminal is used；

Receive the resource allocation information of base station transmission；

If the resource allocation information indicates the base station and carries to first son for using in the terminal of the terminal distribution The portion for being used with second subcarrier spacing by other terminals in the position of the Resource Block under wave spacing, and the Resource Block Divide resource, it is determined that the resource not used by other terminals described in the Resource Block；

According in the Resource Block not by other terminals described using resource communicated.