CN106455103B

CN106455103B - Resource allocation method and resource allocation device

Info

Publication number: CN106455103B
Application number: CN201611082822.4A
Authority: CN
Inventors: 李明菊; 朱亚军; 张云飞
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2016-11-30
Filing date: 2016-11-30
Publication date: 2022-12-20
Anticipated expiration: 2036-11-30
Also published as: CN106455103A; WO2018099329A1

Abstract

The invention provides a resource allocation method and a resource allocation device, wherein the resource allocation method comprises the following steps: notifying any terminal served by a base station of a first time domain scheduling granularity used in communication, and notifying any terminal of a second time domain scheduling granularity under the condition that the terminal has the second time domain scheduling granularity; allocating communication resources to all terminals served by the base station; when a part of resources of a resource block in a subcarrier interval used by any one terminal is allocated to other terminals for use, the part of resources is indicated to any one terminal. The technical scheme of the invention ensures that when the base station allocates resources to a plurality of terminals using different time domain scheduling granularities, the base station can ensure the maximum utilization of the resources and can accurately indicate the terminals to acquire the allocated communication resources.

Description

Resource allocation method and resource allocation device

Technical Field

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

Background

Existing 4G and 4.5G mobile communication technologies are based on LTE (Long Term Evolution) and LTE-a (LTE-Advanced) radio access technologies, time-frequency resource granularity, frame structures, and the like. For example, the maximum single Carrier bandwidth that can be supported by the current LTE system is 20MHz, and if a larger bandwidth is to be supported, only Carrier Aggregation (CA) can be used. In addition, the current frame structure mainly includes: FDD (Frequency Division duplex) frame structures, TDD (Time Division duplex) frame structures, and dynamic frame structures used by LAA (LTE Assisted Access) unlicensed carriers. Regardless of the frame structure, the subframe structure includes 10 subframes, each subframe is 1ms, each subframe includes two slots (one slot is 0.5 ms), and each slot includes 7 symbols. In the frequency domain, in the LTE system, the subcarrier spacing is mainly 15kHz, and one RB (Resource Block) includes 12 subcarriers. A new 3.75kHz subcarrier spacing is proposed in NB-IoT (Narrow Band Internet of Things based on cellular), 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 a subframe of 1ms as a Time-domain scheduling granularity, and the Time-domain scheduling granularity is less than 1ms except when DwPTS (Downlink Pilot Time Slot) in a special subframe in the TDD frame structure is used for transmitting data. In the same way, the downlink scheduling time domain granularity of multiplexing DwPTS as a partial subframe also appears in the frame structure used by the LAA unlicensed carrier, and the scheduling granularity of 1ms whole subframe is also used. In the FDD frame structure and the TDD frame structure, except for the special subframe in the TDD frame structure having the downlink transmission time and the uplink transmission time, other subframes are uplink transmission or downlink transmission, or are separated by a time domain or a frequency domain.

It can be seen that, the current frame structure and granularity of the frequency domain resource both make the resource allocation inflexible, and the time intervals of the uplink scheduling mechanism and the HARQ (Hybrid Automatic Repeat Request) feedback mechanism and the like make the time delay larger, and the 20MHz bandwidth does not meet the requirement of high bandwidth.

The main scenes of the future 5G communication include the following three scenes: eMBBs (enhanced Mobile Broadband networks), mMTC (massive Machine Type Communication), and URLLC (Ultra-Reliable and Low Latency Communications). The three scenarios are different in the type of service and the requirements. Such as: two main indexes of the eMBB service are high bandwidth and low time delay, the eMBB service can support large bandwidth of 100MHz in future high-frequency communication, the whole bandwidth is probably directly distributed to one user at a certain moment for use, and uplink scheduling time delay and HARQ feedback time delay can bring time delay influence; the mMTC service needs a narrow-band service, and needs a long battery life, so that the service needs a frequency domain with smaller granularity and a time domain resource with wider granularity; for URLLC service, it is also necessary to reduce the delay impact caused by uplink scheduling delay and HARQ feedback delay.

That is, due to the diversification of services, a larger uplink scheduling delay and a longer HARQ feedback delay are caused by a current fixed frame structure, a fixed frequency domain resource granularity and a time domain resource granularity, and a smaller carrier bandwidth cannot meet the diversified requirements of the services.

Currently, the conference discussion for 5G has agreed to: there may be different subcarrier spacings for different services on the same carrier. Specifically, as shown in FIG. 1, if the minimum subcarrier spacing isf ₀ Secondly, there is 2f ₀ 、4f ₀ And 8f ₀ Then, the size of the corresponding RB (Resource Block) is also multiple. In this case, for example, UE #1 usesf ₀ And only need to usef ₀ RB0 of the time, and no other use at this timef ₀ Need to allocate resources, only use 2f ₀ UE #2, and UE #2 uses 2f ₀ If a part of the resources in RB0 is already used by UE #1, then it is a technical problem to be solved if the remaining part of the resources needs to be allocated to UE #2, and how to design signaling to inform UE #2 which part is already used by other users when allocated to UE #2.

Similar to the problem of frequency domain indication, there is also a problem of time domain indication, as shown in fig. 2, for example, the scheduling slot lengths corresponding to services using different subcarrier spacings are different. Then the corresponding time domain appears as follows: UE #1 uses a subcarrier spacing f0 of 15kHz such that the corresponding 1ms subframe contains 2 slots, each slot being 7 symbols. UE #2 uses a subcarrier spacing 2f0 of 30kHz so that the corresponding 1ms subframe contains 4 slots of 7 symbols each. Wherein the Slot is a time domain scheduling minimum unit. Then the problem may occur that UE #1 has already allocated its slot0, but UE #2 has traffic to transmit later, and UE #2 has higher priority, and then for some RBs UE #2 is allocated in the second half of slot0 of UE # 1. In this case, how to inform the UE #1 is a problem to be solved. This problem may also occur when UE #1 and UE #2 use the same subcarrier spacing, but the time-domain scheduling granularity for UE #2 is smaller than for UE #1, e.g., UE #2 uses a 2-symbol mini-slot. Therefore, how to design signaling to inform the UE #2 which part is already used by other users is also an urgent technical problem to be solved.

Disclosure of Invention

The present invention is based on at least one of the above technical problems, and provides a new resource allocation scheme, so that when a base station allocates resources to a plurality of terminals using different subcarrier intervals, the base station can ensure maximum utilization of the resources, and can accurately instruct the terminals to acquire the allocated communication resources.

In view of this, according to a first aspect of the present invention, there is provided a resource configuration apparatus, including: a notifying unit, configured to notify a first time domain scheduling granularity used when any terminal served by a base station performs communication, and notify a second time domain scheduling granularity to any terminal served by the base station when all terminals have the second time domain scheduling granularity; an allocation unit configured to allocate communication resources to all terminals served by the base station; and an indication unit, configured to send DCI resource allocation information to the any terminal when the allocation unit allocates part of the resources of the resource block in the subcarrier interval used by the any terminal to another terminal.

In the technical scheme, under the condition that a terminal served by a base station has a first time domain scheduling granularity and a second time domain scheduling granularity, part of resources in a resource block of the first time domain scheduling granularity used by any terminal are allocated to other terminals for use, and the resource allocation information of the terminal is notified, so that the terminal which occupies the resources knows which resources are occupied. By the technical scheme, the terminal can accurately know the self-allocated communication resource, so that the terminal can receive or send data through the allocated communication resource.

In the foregoing technical solution, preferably, the second time domain scheduling granularity is smaller than the first time domain scheduling granularity, where the second time domain scheduling granularity is a minimum time domain scheduling granularity used in a terminal served by the base station, or the second time domain scheduling granularity is a time domain scheduling granularity used in a terminal served by the base station and only smaller than the first time domain scheduling granularity.

In this technical solution, when the second time domain scheduling granularity is the minimum subcarrier spacing used in the terminals served by the base station, the other terminals may be a plurality of terminals using other time domain scheduling granularities (which may be one or more) smaller than the first time domain scheduling granularity; and when the second time domain scheduling granularity is only one time domain scheduling granularity used in terminals served by the base station, which is smaller than the first time domain scheduling granularity, the other terminals are one or more terminals using the second time domain scheduling granularity.

In this technical solution, since the time domain scheduling granularity has a size relationship, the number of bits of DCI signaling used when the terminal indicates the partial resource allocated to the other terminal in the resource block to use may be determined according to the first time domain scheduling granularity and the second time domain scheduling granularity. For example, if the ratio between the first time domain scheduling granularity and the second time domain scheduling granularity is 2, and the multiple second time domain scheduling granularities do not overlap in time, the number of bits of the DCI signaling is 2, that is, each bit corresponds to an indication indicating whether one of the two resources is occupied by another terminal. However, if the multiple second time domain scheduling granularities may overlap in time, for example, the first time domain scheduling granularity is 14 symbols, and the second time domain scheduling granularity is 7 symbols, then there may be 7 second time domain scheduling granularities in one first time domain scheduling granularity, for example, the first second time domain scheduling granularity includes symbols 0 to 6, the second time domain scheduling granularity includes symbols 1 to 7-8230, the third time domain scheduling granularity is 8230, and the seventh time domain scheduling granularity includes symbols 7 to 13. Then in this case a greater number of bits is required to indicate 7 time resource block locations.

In any of the above technical solutions, preferably, the notification unit is specifically configured to: and notifying the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity to any terminal through semi-static RRC signaling.

In any of the above technical solutions, preferably, a sending time of a semi-static RRC (Radio Resource Control) signaling is different from a sending time of an RRC signaling notifying the first time domain scheduling granularity.

In the scheme, for example, if a certain communication time does not use a user with a time domain scheduling granularity smaller than the first time domain scheduling granularity, only the first time domain scheduling granularity used by the user is notified; and if there is a user using a time domain scheduling granularity smaller than the first time domain scheduling granularity for a next period of time, notifying the user of information of a second time domain scheduling granularity used by other users.

In any of the above technical solutions, preferably, the notification unit is specifically configured to: and notifying the second time domain scheduling granularity or the size relation between the first time domain scheduling granularity and the second time domain scheduling granularity to any terminal through dynamic DCI signaling.

In the technical scheme, the terminal is informed of the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity through dynamic DCI signaling.

In any of the foregoing technical solutions, preferably, the instructing unit sends DCI resource allocation information to the terminal performing communication using the first time domain scheduling granularity by using the first time domain scheduling granularity, and when some resources in the first time domain scheduling granularity are occupied by other terminals performing communication using the second time domain scheduling granularity under the base station, sends the DCI resource allocation information to the terminal performing communication using the first time domain scheduling granularity again by using the second time domain scheduling granularity to inform the terminal of resources occupied by other terminals performing communication using the second time domain scheduling granularity in the second time domain scheduling granularity, so that the terminal performing communication using the first time domain scheduling granularity knows its actually allocated resources.

In the technical scheme, the indicating unit uses the first time domain scheduling granularity of the terminal for communication under the condition that the resource of the terminal is not occupied by other terminals, and when the resource of the terminal is occupied by other terminals, the indicating unit uses the second time domain scheduling granularity of the terminal occupying the resource for communication to send DCI resource allocation information, and informs that part of the resource is occupied by other terminals in the second time domain scheduling granularity or directly informs that the terminal is allocated with what resources in the current second time domain scheduling granularity, so that the indicating unit can inform the terminal which resources are occupied by other terminals using the second time domain scheduling granularity for communication. And the resources allocated in the time of the first time domain scheduling granularity except the second time domain scheduling granularity are also indicated according to the DCI signaling indication of the first time domain scheduling granularity, in this case, the DCI signaling of the second time domain scheduling granularity does not need to be indicated.

In this technical solution, if there are one or more possible DCI signaling transmission positions of the second time domain scheduling granularity in the first time domain scheduling granularity, the indicating unit uses RRC signaling to notify any terminal using the first time domain scheduling granularity, and monitors the one or more possible DCI signaling transmission positions of the second time domain scheduling granularity.

By the technical scheme, for the condition that a plurality of sending positions with the second time domain scheduling granularity are possible, the base station can inform the terminal to monitor one or more sending positions, that is, all the sending positions are not required to be monitored, so that the time domain diversity can be realized by monitoring one terminal and monitoring the other terminal, and meanwhile, the energy consumption of the terminal is reduced.

In this technical solution, preferably, the indicating unit may further send DCI resource allocation information to the terminal performing communication using the first time domain scheduling granularity by using the first time domain scheduling granularity, and when some resources are occupied by other terminals performing communication using the second time domain scheduling granularity under the base station in the first time domain scheduling granularity, when DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity by using a next first time domain scheduling granularity, the DCI resource allocation information includes information that the terminal occupies time-frequency resources of the terminal in the last first time domain scheduling granularity by using the second time domain scheduling granularity as a unit, so that the terminal performing communication using the first time domain scheduling granularity knows resources actually allocated in the last first time domain scheduling granularity.

In this case, the user is informed in the latter first time domain scheduling granularity that there is a user occupying the user resource with the second time domain scheduling granularity in the former first time domain scheduling granularity, and then the user needs to be informed of the second time domain scheduling granularity at which time position the user is located at this time, where the DCI bit number needs to be determined according to the first time domain scheduling granularity and the second time domain scheduling granularity so as to indicate the position of the second time domain scheduling granularity in the first time domain scheduling granularity.

In the above technical solution, preferably, the information that the time-frequency resource of the terminal is occupied in the last first time-domain scheduling granularity by taking the second time-domain scheduling granularity as a unit includes a start position and a time length of the occupied time resource and a position of the frequency-domain resource.

By including the initial position and the time length of the occupied time resource and the position of the frequency domain resource in the information of the time-frequency resource, the terminal receiving the information can prepare to know which resources of the terminal are occupied.

In the foregoing technical solution, preferably, the resource configuration apparatus further includes: a determining unit, configured to determine, according to the first time domain scheduling granularity and the second time domain scheduling granularity, a bit number indicated by a DCI (Downlink Control Information) signaling that is required when the any terminal is indicated by the partial resource allocated to the other terminal in the resource block.

In the technical scheme, DCI resource allocation information is sent to a terminal using a first time domain scheduling granularity by the first time domain scheduling granularity, when other terminals need to occupy partial resources of the terminal in the first time domain scheduling granularity by a second time domain scheduling granularity, the DCI resource allocation information is sent to the terminal occupying resources by the next first time domain scheduling granularity, and the information contains the information that the other terminals occupy time-frequency resources of the terminal by the second time domain scheduling granularity, so that the terminal can know the actually allocated resources from the information.

According to the second aspect of the present invention, there is also provided a resource configuration apparatus, including: a first receiving unit, configured to receive a first time domain scheduling granularity used by a terminal notified by a base station when performing communication, and a second time domain scheduling granularity used by another terminal served by the base station; a second receiving unit, configured to receive DCI resource allocation information sent by the base station; a determining unit, configured to determine, according to the DCI resource allocation information, the partial resources occupied by the other terminals when the base station allocates partial resources of the resource blocks used by the terminal to the other terminals for use.

In the technical scheme, the terminal receives the first time domain scheduling granularity, the second time domain scheduling granularity and the DCI resource allocation information from the base station, so that the resource allocated to the terminal and the resource occupied by other terminals are determined.

In the foregoing technical solution, preferably, the first receiving unit receives the second time domain scheduling granularity or a size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity by receiving a semi-static RRC signaling.

In the foregoing technical solution, preferably, the first receiving unit receives the second time domain scheduling granularity or a size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity by receiving a dynamic DCI signaling.

In the foregoing technical solution, preferably, the determining unit is further configured to detect a PDCCH (Physical Downlink Control Channel) or an ePDCCH (Enhanced Physical Downlink Control Channel) in units of the second time-domain scheduling granularity after the first receiving unit receives the semi-static RRC signaling or the dynamic DCI instruction notifying the second time-domain scheduling granularity, and determine the partial resource according to bit information indicated by the received DCI signaling.

In this technical solution, when the first receiving unit has received the notification and knows that part of its resources may be occupied by the terminal using the second time domain scheduling granularity, the terminal will detect the PDCCH or ePDCCH in units of the second time domain scheduling granularity.

In the above technical solution, if there are one or more possible DCI signaling transmission positions of the second time domain scheduling granularity in the first time domain scheduling granularity, the determining unit monitors the one or more possible DCI signaling transmission positions of the second time domain scheduling granularity according to the received RRC signaling.

By the technical scheme, for the condition that a plurality of sending positions with the second time domain scheduling granularity are possible, the base station can inform the terminal to monitor one or more sending positions, namely, all the sending positions are not required to be monitored, so that time domain diversity can be realized by monitoring one terminal and monitoring the other terminal, and meanwhile, the energy consumption of the terminal is reduced.

In the foregoing technical solution, preferably, after receiving the semi-static RRC signaling or the dynamic DCI instruction notifying the second time-domain scheduling granularity, the determining unit detects a PDCCH or an ePDCCH in units of the first time-domain scheduling granularity, and after receiving the DCI resource allocation information, determines that some resources in a last first time-domain scheduling granularity of the first time-domain scheduling granularity are occupied by other terminals that use the second time-domain scheduling granularity for communication at the base station, and determines information of occupied time-frequency resources, so that the terminals that use the first time-domain scheduling granularity for communication know their actually allocated resources in the last first time-domain scheduling granularity.

According to a third aspect of the present invention, there is provided a resource configuration method, including: notifying any terminal served by a base station of a first time domain scheduling granularity used in communication, and notifying any terminal of a second time domain scheduling granularity under the condition that the terminal has the second time domain scheduling granularity; allocating communication resources to all terminals served by the base station; and when part of resources of the resource block in the subcarrier interval used by the any terminal are allocated to other terminals for use, sending DCI resource allocation information to the any terminal.

In the above technical solution, preferably, the second time domain scheduling granularity is smaller than the first time domain scheduling granularity, where the second time domain scheduling granularity is a minimum time domain scheduling granularity used in a terminal served by the base station, or the second time domain scheduling granularity is a time domain scheduling granularity used in a terminal served by the base station and only smaller than the first time domain scheduling granularity.

In any of the above technical solutions, preferably, the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is notified to the any terminal through a semi-static RRC signaling.

In any of the above technical solutions, preferably, a transmission time of the semi-static RRC signaling is different from a transmission time of the RRC signaling notifying the first time domain scheduling granularity.

In any of the above technical solutions, preferably, the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is notified to the any terminal through a dynamic DCI signaling.

In any of the foregoing technical solutions, preferably, DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity with the first time domain scheduling granularity, and when some resources in the first time domain scheduling granularity are occupied by other terminals performing communication using the second time domain scheduling granularity at the base station, the DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity again with the second time domain scheduling granularity to notify the terminal of resources occupied by other terminals performing communication using the second time domain scheduling granularity in the second time domain scheduling granularity, so that the terminal performing communication using the first time domain scheduling granularity knows its actually allocated resources. In the technical scheme, under the condition that the resources of the terminal are not occupied by other terminals, the first time domain scheduling granularity of the terminal is used for communication, and when the resources of the terminal are occupied by other terminals, the second time domain scheduling granularity of the terminal occupying the resources is used for communication to send the DCI resource allocation information, so that the terminal can be informed which resources are occupied by other terminals using the second time domain scheduling granularity for communication.

In the technical scheme, if one or more possible DCI signaling transmission positions of the second time domain scheduling granularity exist in the first time domain scheduling granularity, the RRC signaling is used for notifying any terminal using the first time domain scheduling granularity, and the one or more possible DCI signaling transmission positions of the second time domain scheduling granularity are monitored.

In the foregoing technical solution, preferably, DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity by using the first time domain scheduling granularity, and when some resources are occupied by other terminals performing communication using the second time domain scheduling granularity under the base station in the first time domain scheduling granularity, when DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity by using the next first time domain scheduling granularity, information that the terminal occupies time-frequency resources of the terminal in the last first time domain scheduling granularity by using the second time domain scheduling granularity as a unit is included, so that the terminal performing communication using the first time domain scheduling granularity knows resources actually allocated in the last first time domain scheduling granularity.

In this technical solution, since there is a size relationship between the time domain scheduling granularities, the bit number of DCI signaling used when the terminal is indicated with the partial resource allocated to other terminals in the resource block may be determined according to the values of the first time domain scheduling granularity and the second time domain scheduling granularity. For example, if the ratio between the first time domain scheduling granularity and the second time domain scheduling granularity is 2, and the multiple second time domain scheduling granularities do not overlap in time, the number of bits of the DCI signaling is 2, that is, each bit corresponds to an indication indicating whether one of the two resources is occupied by another terminal. However, if multiple second time domain scheduling granularities may overlap in time, for example, the first time domain scheduling granularity is 14 symbols, and the second time domain scheduling granularity is 7 symbols, then there may be 7 second time domain scheduling granularities in one first time domain scheduling granularity, for example, the first second time domain scheduling granularity includes symbols 0 to 6, the second time domain scheduling granularity includes symbols 1 to 7 \ 8230, the second time domain scheduling granularity includes symbols 8230, and the seventh time domain scheduling granularity includes symbols 7 to 13. Then in this case a larger number of bits are required to indicate the 7 time resource block locations. In the above technical solution, the information that the time-frequency resource of the terminal is occupied in the last first time-domain scheduling granularity by using the second time-domain scheduling granularity as a unit includes the start position and the time length of the occupied time resource and the position of the frequency-domain resource.

By including the initial position and the time length of the occupied time resource and the position of the frequency domain resource in the information of the time frequency resource, the terminal receiving the information can prepare to know which resources of the terminal are occupied. In the technical scheme, DCI resource allocation information is sent to a terminal using a first time domain scheduling granularity by a first time domain scheduling granularity, when other terminals need to occupy part of resources of the terminal in the first time domain scheduling granularity by a second time domain scheduling granularity, the DCI resource allocation information is sent to the terminal occupying the resources by the next first time domain scheduling granularity, and the information contains information that the other terminals occupy time-frequency resources of the terminal by the second time domain scheduling granularity, so that the terminal can know the actually allocated resources from the information.

According to a fourth aspect of the present invention, there is also provided a resource configuration method, including: receiving a first time domain scheduling granularity used by a terminal notified by a base station during communication and a second time domain scheduling granularity used by other terminals served by the base station; receiving DCI resource allocation information sent by the base station; and determining the partial resources occupied by other terminals when the base station allocates partial resources of the resource blocks used by the terminals to other terminals for use according to the DCI resource allocation information.

In the foregoing technical solution, preferably, the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is received by receiving a semi-static RRC signaling.

In the foregoing technical solution, preferably, the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is received by receiving a dynamic DCI signaling.

In the above technical solution, preferably, the method further includes: after receiving the semi-static RRC signaling or the dynamic DCI instruction notifying the second time-domain scheduling granularity, detecting a PDCCH or an ePDCCH in units of the second time-domain scheduling granularity, and determining the partial resource according to bit information indicated by the received DCI signaling.

In the technical scheme, after the second time domain scheduling granularity information is received, when knowing that part of the resources of the second time domain scheduling granularity information can be occupied by the terminal using the second time domain scheduling granularity, the terminal detects the PDCCH or the ePDCCH by taking the second time domain scheduling granularity as a unit.

In the foregoing technical solution, preferably, after receiving the semi-static RRC signaling or the dynamic DCI instruction notifying the second time-domain scheduling granularity, the PDCCH or the ePDCCH is detected in units of the first time-domain scheduling granularity, and after receiving the DCI resource allocation information, it is determined that some resources in a last first time-domain scheduling granularity of the first time-domain scheduling granularity are occupied by other terminals that use the second time-domain scheduling granularity for communication at the base station and information of occupied time-frequency resources is determined, so that the terminals that use the first time-domain scheduling granularity for communication learn about their actually allocated resources in the last first time-domain scheduling granularity.

In the technical scheme, after second time domain scheduling granularity information is received, when knowing that part of resources of the terminal can be occupied by the terminal using the second time domain scheduling granularity, the terminal detects PDCCH or ePDCCH by taking the first time domain scheduling granularity as a unit, and after receiving the DCI resource allocation information, determines that part of resources in one time domain granularity before the first time domain scheduling granularity are occupied by users performing communication by using the second time domain scheduling granularity and confirms occupied time frequency resource information, so that the terminal using the first time domain scheduling granularity knows the resources actually allocated by the terminal in the last first time domain scheduling granularity.

And if one or more DCI signaling sending positions with the possible second time domain scheduling granularity exist in the first time domain scheduling granularity, monitoring one or more DCI signaling sending positions with the possible second time domain scheduling granularity according to the received RRC signaling.

Through the technical scheme, when the base station allocates resources to the plurality of terminals using different time domain granularities, the maximum utilization of the resources can be ensured, and the terminals can be accurately indicated to acquire the allocated communication resources.

Drawings

Fig. 1 shows a schematic diagram of different users using different subcarrier spacings;

FIG. 2 illustrates a schematic diagram of resource allocation for different time-domain scheduling granularities;

FIG. 3 shows a flow diagram of a resource configuration method according to a first embodiment of the invention;

fig. 4 is a schematic structural diagram of a resource configuration apparatus according to a first embodiment of the present invention;

fig. 5 shows a schematic block diagram of a base station according to a first embodiment of the invention;

FIG. 6 shows a flow diagram of a resource configuration method according to a second embodiment of the invention;

fig. 7 is a schematic structural diagram of a resource allocation apparatus according to a second embodiment of the present invention;

fig. 8 shows a schematic block diagram of a terminal according to a first embodiment of the present invention;

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

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

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the scope of the present invention is not limited by the specific embodiments disclosed below.

Fig. 3 is a flowchart illustrating a resource allocation method according to a first embodiment of the present invention, where an execution subject of the resource allocation method may be a base station.

As shown in fig. 3, a resource allocation method according to a first embodiment of the present invention includes the following steps:

step S302, notifying any terminal served by a base station of a first time domain scheduling granularity used in communication, and notifying any terminal of a second time domain scheduling granularity when all terminals served by the base station have the second time domain scheduling granularity;

step S304, distributing communication resources to all terminals served by the base station;

step S306, when allocating part of the resources of the resource block in the subcarrier interval used by the any terminal to other terminals, transmitting DCI resource allocation information to the any terminal.

In the technical scheme, under the condition that a first time domain scheduling granularity and a second time domain scheduling granularity exist in a terminal served by a base station, part of resources in a resource block of the first time domain scheduling granularity used by any terminal are allocated to other terminals for use, and meanwhile, the resource allocation information of the terminal is informed, so that the terminal which occupies the resources knows which resources are occupied. Through the technical scheme, the terminal can accurately acquire the communication resource allocated to the terminal, so that the terminal can receive or send data through the allocated communication resource.

Preferably, the second time domain scheduling granularity is smaller than the first time domain scheduling granularity, wherein the second time domain scheduling granularity is a minimum time domain scheduling granularity used in a terminal served by the base station, or the second time domain scheduling granularity is a time domain scheduling granularity used in a terminal served by the base station that is smaller than only the first time domain scheduling granularity.

In this technical solution, the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity may be notified to the any terminal through a semi-static RRC signaling.

In the technical solution, the sending time of the semi-static RRC signaling is different from the sending time of the RRC signaling notifying the first time domain scheduling granularity.

In the technical scheme, a user is informed of the time domain scheduling granularity t1 when the user sends and receives data through semi-static RRC signaling. Then at a different time, the time-domain scheduling granularity t2 or the ratio of the time-domain scheduling granularity t1 to the time-domain scheduling granularity t2 is signaled using another RRC signaling that is different from the RRC signaling that signals the time-domain scheduling granularity t1. For example, if the user does not use the time domain scheduling granularity t1 smaller than the time domain scheduling granularity t1 in the period of time, only the time domain scheduling granularity t1 used by the user is notified; and if there is a user using the time domain scheduling granularity t2 smaller than the time domain scheduling granularity t1 in the next period of time, notifying the user of the information of the time domain scheduling granularity t2 used by other users through another RRC signaling.

In this embodiment, preferably, DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity at the first time domain scheduling granularity, and when some resources in the first time domain scheduling granularity are occupied by other terminals performing communication using the second time domain scheduling granularity at the base station, the DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity again at the second time domain scheduling granularity to inform the terminal of resources occupied by other terminals performing communication using the second time domain scheduling granularity in the second time domain scheduling granularity, so that the terminal performing communication using the first time domain scheduling granularity knows the actually allocated resources of the terminal.

In the technical scheme, under the condition that the resources of the terminal are not occupied by other terminals, the first time domain scheduling granularity of the terminal is used for communication, and when the resources of the terminal are occupied by other terminals, the second time domain scheduling granularity of the terminal occupying the resources is used for communication to send the DCI resource allocation information, so that the terminal can be informed of which resources are occupied by other terminals which use the second time domain scheduling granularity for communication.

In the technical scheme, if one or more DCI signaling sending positions with possible second time domain scheduling granularity exist in the first time domain scheduling granularity, the terminal using the first time domain scheduling granularity is informed by using RRC signaling, and the one or more DCI signaling sending positions with the possible second time domain scheduling granularity are monitored.

In this embodiment, the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is also notified to the any terminal through dynamic DCI signaling. For example, since it may be that the RRC signaling does not have time to notify the user, the DCI signaling may be used to notify the user of the value of the time domain scheduling granularity t2 or the size relationship between the time domain scheduling granularity t1 and the time domain scheduling granularity t 2.

Preferably, the DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity by the first time domain scheduling granularity, and when some resources are occupied by other terminals performing communication using the second time domain scheduling granularity under the base station in the first time domain scheduling granularity, the DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity by a next first time domain scheduling granularity, where the DCI resource allocation information includes information that the terminal is occupied by the time-frequency resource in the last first time domain scheduling granularity by using the second time domain scheduling granularity as a unit, so that the terminal performing communication using the first time domain scheduling granularity knows the actually allocated resource in the last first time domain scheduling granularity.

In the technical scheme, DCI resource allocation information is sent to a terminal using a first time domain scheduling granularity by a first time domain scheduling granularity, when other terminals need to occupy part of resources of the terminal in the first time domain scheduling granularity by a second time domain scheduling granularity, the DCI resource allocation information is sent to the terminal occupying the resources by the next first time domain scheduling granularity, and the information contains information that the other terminals occupy time-frequency resources of the terminal by the second time domain scheduling granularity, so that the terminal can know the actually allocated resources from the information.

In the above technical solution, preferably, the resource allocation method further includes: and determining the bit number of DCI signaling indication required when indicating the partial resources allocated to other terminals in the resource block to any terminal according to the values of the first time domain scheduling granularity and the second time domain scheduling granularity.

In this technical solution, since the time domain scheduling granularity has a size relationship, the number of bits of DCI signaling used when the terminal is indicated with the partial resource allocated to another terminal in the resource block may be determined according to the values of the first time domain scheduling granularity and the second time domain scheduling granularity. For example, if the ratio between the first time domain scheduling granularity and the second time domain scheduling granularity is 2, and the multiple second time domain scheduling granularities do not overlap in time, the number of bits of the DCI signaling is 2, that is, each bit corresponds to an indication indicating whether one of the two resources is occupied by another terminal. However, if multiple second time domain scheduling granularities may overlap in time, for example, the first time domain scheduling granularity is 14 symbols, and the second time domain scheduling granularity is 7 symbols, then there may be 7 second time domain scheduling granularities in one first time domain scheduling granularity, for example, the first second time domain scheduling granularity includes symbols 0 to 6, the second time domain scheduling granularity includes symbols 1 to 7 \ 8230, the second time domain scheduling granularity includes symbols 8230, and the seventh time domain scheduling granularity includes symbols 7 to 13. Then in this case a greater number of bits is required to indicate 7 time resource block locations.

In the above technical solution, the information that the time-frequency resource of the terminal is occupied in the last first time-domain scheduling granularity by using the second time-domain scheduling granularity as a unit includes an initial position and a time length of the occupied time resource and a position of the frequency-domain resource.

Fig. 4 shows a schematic structural diagram of a resource configuration apparatus according to a first embodiment of the present invention.

As shown in fig. 4, a resource allocation apparatus 400 according to a first embodiment of the present invention includes: a notifying unit 402, configured to notify a first time domain scheduling granularity used when any terminal served by a base station performs communication, and notify a second time domain scheduling granularity to any terminal served by the base station when all terminals have the second time domain scheduling granularity; an allocating unit 404, configured to allocate communication resources to all terminals served by the base station; an indicating unit 406, configured to send DCI resource allocation information to the any terminal when the allocating unit allocates part of the resources of the resource block in the subcarrier interval used by the any terminal to be used by another terminal.

In this technical solution, when the second time domain scheduling granularity is the minimum subcarrier spacing used in the terminals served by the base station, the other terminals may be a plurality of terminals using other time domain scheduling granularities (which may be one or more) smaller than the first time domain scheduling granularity; and when the second time domain scheduling granularity is only one time domain scheduling granularity used in the terminals served by the base station, which is smaller than the first time domain scheduling granularity, the other terminals are one or more terminals using the second time domain scheduling granularity.

In this technical solution, since there is a size relationship between the time domain scheduling granularities, the bit number of DCI signaling used when the terminal is indicated with the partial resource allocated to the other terminal in the resource block can be determined according to the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity. For example, if the ratio between the first time domain scheduling granularity and the second time domain scheduling granularity is 2, and the multiple second time domain scheduling granularities do not overlap in time, the number of bits of the DCI signaling is 2, that is, each bit corresponds to an indication indicating whether one of the two resources is occupied by another terminal. However, if the multiple second time domain scheduling granularities may overlap in time, for example, the first time domain scheduling granularity is 14 symbols, and the second time domain scheduling granularity is 7 symbols, then there may be 7 second time domain scheduling granularities in one first time domain scheduling granularity, for example, the first second time domain scheduling granularity includes symbols 0 to 6, the second time domain scheduling granularity includes symbols 1 to 7 \8230, the 8230, and the seventh time domain scheduling granularity includes symbols 7 to 13, and then in this case, more bits are needed to indicate the positions of 7 time resource blocks.

In addition, if the DCI signaling is sent with the second time domain scheduling granularity to notify the terminal of the occupied time frequency resources, it is not necessary to additionally indicate the position of the second time domain scheduling granularity at the first time domain scheduling granularity, because the terminal can know that the current second time domain scheduling granularity is the time frequency resources occupied by other terminals according to the monitored DCI. If the time-frequency resource occupied by the terminal is informed by sending DCI signaling with the next first time-domain scheduling granularity, the additional DCI signaling bit is needed to indicate the position of the second time-domain scheduling granularity of the resource occupied by other terminals in the last first time-domain scheduling granularity.

In any of the above technical solutions, preferably, the notification unit 402 is specifically configured to: and notifying the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity to any terminal through semi-static RRC signaling.

In any of the above technical solutions, preferably, a transmission time of a semi-static RRC (Radio Resource Control) signaling is different from a transmission time of an RRC signaling notifying the first time domain scheduling granularity.

In any of the foregoing technical solutions, preferably, the instructing unit 406 sends DCI resource allocation information to the terminal performing communication using the first time domain scheduling granularity at the first time domain scheduling granularity, and when some resources in the first time domain scheduling granularity are occupied by other terminals performing communication using the second time domain scheduling granularity under the base station, sends the DCI resource allocation information to the terminal performing communication using the first time domain scheduling granularity again at the second time domain scheduling granularity to inform the terminal of resources occupied by other terminals performing communication using the second time domain scheduling granularity in the second time domain scheduling granularity, so that the terminal performing communication using the first time domain scheduling granularity knows its actually allocated resources.

In this technical solution, the indicating unit 406 performs communication using the first time domain scheduling granularity of the terminal when the resource of the terminal is not occupied by other terminals, and performs communication using the second time domain scheduling granularity of the terminal that occupies the resource to transmit DCI resource allocation information when the resource of the terminal is occupied by other terminals, so as to inform that part of the resource is occupied by other terminals in the second time domain scheduling granularity or directly inform that what the resource is allocated to the terminal in the current second time domain scheduling granularity, so that the terminal can be informed of which resources are occupied by other terminals that perform communication using the second time domain scheduling granularity. And the resources allocated in the time of the first time domain scheduling granularity other than the second time domain scheduling granularity are also indicated according to the DCI signaling indication of the first time domain scheduling granularity, in this case, the DCI signaling of the second time domain scheduling granularity does not need to be indicated.

In any of the above technical solutions, preferably, the instructing unit 406 sends DCI resource allocation information to the terminal performing communication using the first time domain scheduling granularity by using the first time domain scheduling granularity, and when some resources are occupied by other terminals performing communication using the second time domain scheduling granularity under the base station in the first time domain scheduling granularity, when sending DCI resource allocation information to the terminal performing communication using the first time domain scheduling granularity by using a next first time domain scheduling granularity, the information that the terminal occupies time-frequency resources of the terminal in the last first time domain scheduling granularity by using the second time domain scheduling granularity as a unit is included, so that the terminal performing communication using the first time domain scheduling granularity knows the actually allocated resources in the last first time domain scheduling granularity.

In this case, the user is informed in the next first time domain scheduling granularity that there is a user occupying the user resource with the second time domain scheduling granularity in the previous first time domain scheduling granularity, and then the user needs to be informed of the second time domain scheduling granularity at which time position the occupied time resource is located, where the DCI bit number needs to be determined according to the first time domain scheduling granularity and the second time domain scheduling granularity so as to indicate the position of the second time domain scheduling granularity in the first time domain scheduling granularity.

In the foregoing technical solution, preferably, the information that the time-frequency resource of the terminal is occupied in the last first time-domain scheduling granularity by using the second time-domain scheduling granularity as a unit includes a start position and a time length of the occupied time resource and a position of the frequency-domain resource.

In any one of the above technical solutions, preferably, the resource configuration apparatus further includes: a determining unit 408, configured to determine, according to the values of the first time domain scheduling granularity and the second time domain scheduling granularity, a bit number indicated by a DCI (Downlink Control Information) signaling that is required when the any terminal is indicated by the partial resource allocated to the other terminal in the resource block.

Fig. 5 shows a schematic block diagram of a base station according to a first embodiment of the invention.

As shown in fig. 5, a base station 500 according to a first embodiment of the present invention includes: such as the resource configuration apparatus 400 shown in fig. 4.

Fig. 6 is a flowchart illustrating a resource allocation method according to a second embodiment of the present invention, where an execution subject of the resource allocation method may be a terminal.

As shown in fig. 6, a resource allocation method according to a second embodiment of the present invention includes the following steps:

step S602, receiving a first time domain scheduling granularity used by a terminal notified by a base station when performing communication, and a second time domain scheduling granularity used by other terminals served by the base station;

step S604 receives DCI resource allocation information sent by the base station; and determining the partial resources occupied by other terminals when the base station allocates partial resources of the resource blocks used by the terminals to other terminals for use according to the DCI resource allocation information.

In the technical scheme, after the second time domain scheduling granularity information is received, the terminal detects the PDCCH or the ePDCCH by taking the first time domain scheduling granularity as a unit when knowing that part of resources of the terminal can be occupied by the terminal using the second time domain scheduling granularity. After receiving the DCI resource allocation information, determining that a part of the resources in a time domain granularity before the first time domain scheduling granularity are occupied by users performing communication with the second time domain scheduling granularity and determining occupied time-frequency resource information, so that a terminal using the first time domain scheduling granularity knows the resources actually allocated to the terminal in the last first time domain scheduling granularity.

In the technical scheme, if one or more possible DCI signaling transmission positions of the second time domain scheduling granularity exist in the first time domain scheduling granularity, the one or more possible DCI signaling transmission positions of the second time domain scheduling granularity are monitored according to the received RRC signaling.

In this embodiment, based on the notification of RRC signaling regarding the time-domain scheduling granularity t1, the user only needs to detect PDCCH or ePDCCH in units of the time-domain scheduling granularity t1, for example, PDCCH only appears in the first one or several symbols of the time-domain granularity in units of t1, and middle and back symbols do not appear (of course, the smallest PDCCH detection unit is t1, if there is multi-subframe scheduling, only PDCCH of the first subframe of the multiple subframes needs to be detected, and detection of the back subframe does not need to be detected); then, according to the detected DCI signaling, the user obtains information of the time domain scheduling granularity t1, and the DCI signaling provides time domain information allocated to the user (when single time granularity scheduling is performed, time with the length of t1 at a certain position may be provided, or when multi-time granularity scheduling is performed, time with the length of t1 at a certain position may be provided). Then, the user detects the RRC or DCI signaling, and knows the information of the second time-domain scheduling granularity t2, and the user knows that the user needs to detect the PDCCH or ePDCCH in the unit of the time-domain scheduling granularity t2 in the next period of time, because other users may occupy the RB resource of the user in the unit of the time-domain scheduling granularity t2, the user needs to be notified by one or more symbols in front of the unit of the time-domain scheduling granularity t2, and the RB resource allocated to the user is occupied by others in the next t2 period or t2 periods. After the user detects the RRC or DCI signaling and knows the information of the second time domain scheduling granularity t2, the user may continue to detect the PDCCH or ePDCCH in units of the first time domain scheduling granularity, and the DCI signaling sent in units of the first time domain scheduling granularity at this time indicates whether resources in the previous first time domain scheduling granularity are occupied by the terminal of the time domain second time domain scheduling granularity.

Fig. 7 shows a schematic structural diagram of a resource allocation apparatus according to a second embodiment of the present invention.

As shown in fig. 7, a resource allocation apparatus 700 according to a second embodiment of the present invention includes: a first receiving unit 702, configured to receive a first time domain scheduling granularity used by a terminal notified by a base station when performing communication, and a second time domain scheduling granularity used by other terminals served by the base station; a second receiving unit 704, configured to receive DCI resource allocation information sent by the base station; a determining unit 706, configured to determine, according to the DCI resource allocation information, the partial resources occupied by the other terminals when the base station allocates partial resources of the resource block used by the terminal to the other terminals for use.

In the foregoing technical solution, preferably, the first receiving unit 702 receives the second time domain scheduling granularity or a size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity by receiving a semi-static RRC signaling.

In the foregoing technical solution, preferably, the first receiving unit 702 receives the second time domain scheduling granularity or a size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity by receiving dynamic DCI signaling.

In the foregoing technical solution, preferably, the determining unit 706 is further configured to detect a PDCCH (Physical Downlink Control Channel) or an ePDCCH (Enhanced Physical Downlink Control Channel) in units of the second time-domain scheduling granularity after the first receiving unit 602 receives the semi-static RRC signaling or the dynamic DCI instruction notifying the second time-domain scheduling granularity, and determine the partial resource according to bit information indicated by the received DCI signaling.

In this technical scheme, after the first receiving unit 702 has received the second time domain scheduling granularity information, when knowing that part of the resources of the first receiving unit may be occupied by the terminal using the second time domain scheduling granularity, the terminal will detect the PDCCH or the ePDCCH in units of the second time domain scheduling granularity.

In this technical solution, after the first receiving unit 702 has received the semi-static RRC signaling or the dynamic DCI instruction of the second time domain scheduling granularity, the PDCCH or the ePDCCH is detected in units of the first time domain scheduling granularity, and after receiving the DCI resource allocation information, it is determined that some resources in a last first time domain scheduling granularity of the first time domain scheduling granularity are occupied by other terminals that use the second time domain scheduling granularity for communication at the base station, and information of occupied time-frequency resources is determined, so that the terminals that use the first time domain scheduling granularity for communication know their actually allocated resources in the last first time domain scheduling granularity.

In the technical scheme, after the second time domain scheduling granularity information is received, the terminal knows that part of resources of the terminal may be occupied by the terminal using the second time domain scheduling granularity, the terminal detects the PDCCH or the ePDCCH by taking the first time domain scheduling granularity as a unit, and after the DCI resource allocation information is received, the terminal determining that part of resources in one time domain granularity before the first time domain scheduling granularity are occupied by users performing communication with the second time domain scheduling granularity and determining occupied time frequency resource information so as to enable the terminal using the first time domain scheduling granularity to know the actually allocated resources in the last first time domain scheduling granularity.

In the above technical solution, if there are one or more possible DCI signaling transmission locations with the second time domain scheduling granularity in the first time domain scheduling granularity, the determining unit monitors the one or more possible DCI signaling transmission locations with the second time domain scheduling granularity according to the received RRC signaling.

Fig. 8 shows a schematic block diagram of a terminal according to a first embodiment of the present invention.

As shown in fig. 8, a terminal 800 according to a first embodiment of the present invention includes: such as resource configuration apparatus 700 shown in fig. 6.

It can be seen that the technical solution of the present invention mainly provides a signaling indication method of a corresponding time domain resource for a case where multiple users in 5G NR (New Radio ) use multiple different time domain scheduling granularities, which is specifically as follows:

firstly, informing a user of a time domain scheduling granularity t1 used when sending and receiving data through a semi-static RRC signaling, and simultaneously informing the user of a minimum time domain scheduling granularity t2 used in the user under the base station or informing the user of a ratio t1/t2 of the time domain scheduling granularity t1 and the time domain scheduling granularity t2, obviously, if a difference value or the ratio of the t1 and the t2 is larger, the more bits are needed for indicating a plurality of positions of the t2 in the t1.

Considering that the subcarrier spacing is 3.75 to 480KHz, the time-domain scheduling granularity ratio is 128 at most, and the required number of bits is very large. In order to reduce the number of bits, the base station needs to adopt some principles when allocating time resources, except that the user time resources using smaller time granularity are continuous as much as possible, and that is, if a part of the time using the time domain scheduling granularity t1 is extracted to another user using the time domain resource t2, the value of t1/t2 is ensured to be as small as possible, so that the number of bits is reduced.

In addition, as another indication method of the present invention, the time-domain scheduling granularity t1 used by the user in transmitting and receiving data may also be informed through semi-static RRC signaling, and at the same time, the sub-time-domain scheduling granularity t3 that is only smaller than the time-domain scheduling granularity t1 and is used by the user under the base station is informed to the user, or the ratio t1/t3 of the time-domain scheduling granularity t1 to the time-domain scheduling granularity t3 is informed to the user, and the following 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 invention.

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

Wherein the memory 5 is used for storing a set of program codes, and the processor 1 calls the program codes stored in the memory 5 to execute the following operations:

informing, by an output means 3, a first time domain scheduling granularity used by any terminal served by a base station when performing communication, and in the case that there is a second time domain scheduling granularity in all terminals served by the base station, informing the any terminal of the second time domain scheduling granularity;

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

and when partial resources of the resource blocks in the subcarrier intervals used by the any terminal are allocated to other terminals for use, indicating the partial resources to the any terminal.

As shown in fig. 10, a terminal according to a second embodiment of the present invention includes: a processor 1', an input device 2' and a memory 5'. In some embodiments of the invention, the processor 1', the input device 2' and the memory 5' may be connected by a bus 4' or in some other way, as exemplified by the connection by the bus 4' in fig. 10.

Wherein the memory 5' is used for storing a set of program codes, and the processor 1' calls the program codes stored in the memory 5' for executing the following operations:

receiving, by an input device 2', a first time domain scheduling granularity used by a terminal notified by a base station when performing communication and a second time domain scheduling granularity used by other terminals served by the base station;

receiving, by an input device 2', transmitted DCI resource allocation information transmitted by the base station;

the method of the embodiment of the present invention is configured to determine, according to the DCI resource allocation information, that when the base station allocates part of the resources of the resource block used by the terminal to other terminals for use, the part of the resources occupied by the other terminals may be sequentially adjusted, combined, and deleted according to actual needs.

The resource allocation device, the terminal and the units in the base station of the embodiment of the invention can be combined, divided and deleted according to actual needs.

It will be understood by those skilled in the art that all or part of the steps of the methods of the embodiments described above may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, including Read-Only Memory (ROM), random Access Memory (RAM), programmable Read-Only Memory (PROM), erasable Programmable Read-Only Memory (EPROM), one-time Programmable Read-Only Memory (OTPROM), electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc-Read-Only Memory (CD-ROM) or other Memory capable of storing data, a magnetic tape, or any other computer-readable medium capable of storing data.

The technical solution of the present invention is described in detail above with reference to the accompanying drawings, and the present invention provides a new resource allocation scheme, so that when a base station allocates resources to multiple terminals using different subcarrier intervals, the base station can ensure maximum utilization of the resources, and can accurately instruct the terminals to acquire the allocated communication resources.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A resource configuration apparatus, comprising:

a notification unit, configured to notify a first time domain scheduling granularity used when any terminal served by a base station performs communication, and notify a second time domain scheduling granularity to any terminal when all terminals served by the base station have the second time domain scheduling granularity;

an allocation unit, configured to allocate communication resources to all terminals served by the base station;

an indicating unit, configured to send DCI resource allocation information to the any terminal when the allocating unit allocates part of the resources of the resource blocks in the subcarrier interval used by the any terminal to other terminals;

the indicating unit sends DCI resource allocation information to the terminal which uses the first time domain scheduling granularity for communication, and when part of resources in the first time domain scheduling granularity are occupied by other terminals which use the second time domain scheduling granularity for communication under the base station, the indicating unit sends the DCI resource allocation information to the terminal which uses the first time domain scheduling granularity for communication again by the second time domain scheduling granularity to inform the terminal of the resources which are occupied by other terminals which use the second time domain scheduling granularity for communication, so that the terminal which uses the first time domain scheduling granularity for communication knows the actually allocated resources of the terminal.

2. The apparatus of claim 1, wherein the second time domain scheduling granularity is smaller than the first time domain scheduling granularity,

wherein the second time domain scheduling granularity is a minimum time domain scheduling granularity used in terminals served by the base station, or the second time domain scheduling granularity is a time domain scheduling granularity used in terminals served by the base station that is only smaller than the first time domain scheduling granularity.

3. The resource configuration apparatus according to any one of claims 1 to 2, wherein the notification unit is specifically configured to: and notifying the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity to any terminal through semi-static RRC signaling.

4. The apparatus of claim 3, wherein the transmission time of the semi-static RRC signaling is different from the transmission time of the RRC signaling informing of the first time domain scheduling granularity.

5. The resource configuration apparatus according to any of claims 1 to 2, wherein the notifying unit is specifically configured to: and notifying the second time domain scheduling granularity or the size relation between the first time domain scheduling granularity and the second time domain scheduling granularity to any terminal through dynamic DCI signaling.

6. The apparatus of claim 1, wherein if there are one or more DCI signaling locations with the second possible time-domain scheduling granularity in the first time-domain scheduling granularity, the indicating unit uses RRC signaling to notify any terminal using the first time-domain scheduling granularity, and monitors the one or more DCI signaling locations with the second possible time-domain scheduling granularity.

7. The apparatus of claim 1, wherein the instructing unit sends DCI resource allocation information to the terminal using the first time-domain scheduling granularity for communication, and when some resources in the first time-domain scheduling granularity are occupied by other terminals under the base station using the second time-domain scheduling granularity for communication, the instructing unit includes information that the time-frequency resources of the terminal are occupied by the second time-domain scheduling granularity in a previous first time-domain scheduling granularity when sending DCI resource allocation information to the terminal using the first time-domain scheduling granularity for communication in a next first time-domain scheduling granularity, so that the terminal using the first time-domain scheduling granularity for communication knows resources actually allocated in the previous first time-domain scheduling granularity.

8. The apparatus of claim 7, wherein the information that includes the time-frequency resource of the terminal occupied by the second time-domain scheduling granularity in the last first time-domain scheduling granularity includes a start position and a time length of the occupied time resource and a location of the frequency-domain resource.

9. The apparatus for resource allocation according to claim 7, further comprising:

a determining unit, configured to determine, according to the first time domain scheduling granularity and the second time domain scheduling granularity, a bit number indicated by DCI signaling required to indicate, to the any terminal, a partial resource allocated to another terminal in the resource block.

10. A resource configuration apparatus, comprising:

a first receiving unit, configured to receive a first time domain scheduling granularity used by a terminal notified by a base station when performing communication, and a second time domain scheduling granularity used by another terminal served by the base station;

a second receiving unit, configured to receive DCI resource allocation information sent by the base station;

a determining unit, configured to determine, according to the DCI resource allocation information, the partial resources occupied by the other terminals when the base station allocates partial resources of the resource blocks used by the terminals to the other terminals for use;

the determining unit detects the PDCCH or the ePDCCH in the unit of the first time-domain scheduling granularity after receiving the semi-static RRC signaling or the dynamic DCI instruction notifying the second time-domain scheduling granularity, and determines that a part of resources in the last first time-domain scheduling granularity of the first time-domain scheduling granularity are occupied by other terminals using the second time-domain scheduling granularity for communication under the base station and determines occupied information of time-frequency resources after receiving the DCI resource allocation information, so that the terminals using the first time-domain scheduling granularity for communication know the actually allocated resources in the last first time-domain scheduling granularity.

11. The apparatus of claim 10, wherein the first receiving unit receives the second time domain scheduling granularity or a size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity by receiving semi-static RRC signaling.

12. The apparatus of claim 10, wherein the first receiving unit receives the second time domain scheduling granularity or a size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity by receiving dynamic DCI signaling.

13. The apparatus of claim 11, wherein the determining unit is further configured to detect PDCCH or ePDCCH in units of the second time domain scheduling granularity after the first receiving unit receives the semi-static RRC signaling or dynamic DCI instruction notifying the second time domain scheduling granularity, and determine the partial resource according to bit information indicated by the received DCI signaling.

14. The apparatus of claim 13, wherein if there are one or more DCI signaling locations of the second possible time-domain scheduling granularity in the first time-domain scheduling granularity, the determining unit monitors the one or more DCI signaling locations of the second possible time-domain scheduling granularity according to the received RRC signaling.

15. A method for resource allocation, comprising:

notifying any terminal served by a base station of a first time domain scheduling granularity used in communication, and notifying any terminal of a second time domain scheduling granularity under the condition that the terminal has the second time domain scheduling granularity;

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

when partial resources of resource blocks in a subcarrier interval used by any terminal are allocated to other terminals for use, indicating the partial resources to the any terminal;

sending DCI resource allocation information to the terminal which uses the first time domain scheduling granularity for communication, and sending the DCI resource allocation information to the terminal which uses the first time domain scheduling granularity for communication again by using the second time domain scheduling granularity for communication when partial resources in the first time domain scheduling granularity are occupied by other terminals which use the second time domain scheduling granularity for communication under the base station, so as to inform the terminal of the resources occupied by other terminals which use the second time domain scheduling granularity for communication, so that the terminal which uses the first time domain scheduling granularity for communication knows the actually allocated resources of the terminal.

16. The method of claim 15, wherein the second time domain scheduling granularity is smaller than the first time domain scheduling granularity,

17. The method according to any of claims 15 to 16, wherein the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is notified to the any terminal through semi-static RRC signaling.

18. The method of claim 17, wherein the sending time of the semi-static RRC signaling is different from the sending time of the RRC signaling informing of the first time domain scheduling granularity.

19. The method of any of claims 15 to 16, wherein the any terminal is informed of the second time domain scheduling granularity or a size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity through dynamic DCI signaling.

20. The method of claim 19, wherein if there are one or more possible DCI signaling locations of the second time domain scheduling granularity in the first time domain scheduling granularity, the RRC signaling is used to notify any terminal using the first time domain scheduling granularity, and the DCI signaling locations of the one or more possible second time domain scheduling granularity are monitored.

21. The method according to claim 15, wherein the DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity at the first time domain scheduling granularity, and when some resources are occupied by other terminals performing communication using the second time domain scheduling granularity under the base station in the first time domain scheduling granularity, the DCI resource allocation information is sent to the terminal performing communication using the first time domain scheduling granularity at a next first time domain scheduling granularity, where the DCI resource allocation information includes information that the terminal occupies time-frequency resources in the last first time domain scheduling granularity by using the second time domain scheduling granularity as a unit, so that the terminal performing communication using the first time domain scheduling granularity knows the resources actually allocated in the last first time domain scheduling granularity.

22. The method of claim 21, wherein the information that the time-frequency resource of the terminal is occupied by the second time-domain scheduling granularity in the previous first time-domain scheduling granularity includes a start position and a time length of the occupied time resource and a location of the frequency-domain resource.

23. The resource allocation method according to claim 21, further comprising:

and determining the bit number of DCI signaling indication required when indicating the partial resources allocated to other terminals in the resource block to any terminal according to the first time domain scheduling granularity and the second time domain scheduling granularity.

24. A method for resource allocation, comprising:

receiving a first time domain scheduling granularity used by a terminal notified by a base station during communication and a second time domain scheduling granularity used by other terminals served by the base station;

receiving DCI resource allocation information sent by the base station;

according to the DCI resource allocation information, determining the partial resources occupied by other terminals when the base station allocates partial resources of resource blocks used by the terminals to other terminals for use;

the resource allocation method further comprises the following steps:

after receiving a semi-static RRC signaling or a dynamic DCI instruction informing the second time domain scheduling granularity, detecting a PDCCH or an ePDCCH by taking the first time domain scheduling granularity as a unit, after receiving DCI resource allocation information, determining that part of resources in the last first time domain scheduling granularity of the first time domain scheduling granularity are occupied by other terminals which use the second time domain scheduling granularity for communication under the base station, and determining occupied time frequency resource information, so that the terminals which use the first time domain scheduling granularity for communication know the actually allocated resources in the last first time domain scheduling granularity.

25. The method of claim 24, wherein the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is received by receiving semi-static RRC signaling.

26. The method of claim 24, wherein the second time domain scheduling granularity or the size relationship between the first time domain scheduling granularity and the second time domain scheduling granularity is received by receiving dynamic DCI signaling.

27. The method for resource allocation according to claim 25, further comprising:

after receiving a semi-static RRC signaling or a dynamic DCI instruction notifying the second time domain scheduling granularity, detecting a PDCCH or an ePDCCH in units of the second time domain scheduling granularity, and determining the partial resource according to bit information indicated by the received DCI signaling.

28. The method of claim 27, wherein if there are one or more possible DCI signaling locations of a second time domain scheduling granularity in the first time domain scheduling granularity, monitoring the one or more possible DCI signaling locations of the second time domain scheduling granularity according to the received RRC signaling.