WO2020142897A1

WO2020142897A1 - Scheduling method and apparatus, storage medium and communication system

Info

Publication number: WO2020142897A1
Application number: PCT/CN2019/070833
Authority: WO
Inventors: 吴国亮; 董伟; 王辉; 肖啸
Original assignee: 华为技术有限公司
Priority date: 2019-01-08
Filing date: 2019-01-08
Publication date: 2020-07-16
Also published as: CN112544101A; CN112544101B

Abstract

Provided are a scheduling method and apparatus, a storage medium and a communication system. The method comprises: a second network device generating resource allocation information, the resource allocation information being used for indicating a first scheduling policy of the second network device within a preset time period, and sending the resource allocation information to a first network device; and the first network device determining, according to the received resource allocation information, a second scheduling policy of the first network device regarding a terminal device in a cell served by the first network device within the preset time period. According to the technical solution, an available resource capacity of the second network device is not changed, and the first network device can schedule, based on the resource allocation information of the second network device, the terminal device in the cell served by the first network device, thereby avoiding the situation where some terminal devices have fewer available resources, avoiding the problem of a long scheduling period, and increasing the response rate.

Description

Dispatching method, device, storage medium and communication system

Technical field

The present application relates to the field of communication technology, and in particular, to a scheduling method, device, storage medium, and communication system.

Background technique

In an ultra-dense networking scenario, for example, a macro base station and a micro base station cell, in order to further offload the macro base station, after deploying the micro base station within the coverage of the macro base station, you can also expand the cell range by setting ( In the form of cell expansion (CRE), the coverage of the micro base station is expanded to attract more terminal devices to access the micro base station. However, due to the large power and large coverage of the macro base station, the terminal equipment in the CRE area covered by the micro base station will be affected by the strong interference of the macro base station, so that the business of the terminal equipment in the CRE area cannot operate normally.

In the prior art, an approximate blank subframe (ABS) can be introduced to reduce the interference of the macro base station on the terminal equipment in the CRE area covered by the micro base station. The ABS means that the macro base station is not used to transmit the subframes dedicated to the physical downlink control channel and physical downlink shared channel resources of the terminal device. Correspondingly, there are protected subframes in the subframes of the micro base station, and the protected subframes are only subject to the macro base station. The interference of the station pilot and part of the common channel is weak by the interference of the macro base station. Therefore, the micro base station can schedule the terminal devices in the CRE area to the protected subframe, thereby ensuring the normal operation of the services of these terminal devices.

However, in view of the fact that the macro base station cannot schedule ABS and the number of ABSs is limited and the period is long, the capacity of the macro base station decreases, the response rate of the terminal equipment in the CRE area covered by the micro base station is low, and the user experience is poor.

Summary of the invention

Embodiments of the present application provide a scheduling method, device, storage medium, and communication system to solve the problems of low response rate and poor user experience of terminal devices in a CRE area covered by a micro base station.

A first aspect of the present application provides a scheduling method, which is applicable to a first network device, and the method includes:

Receiving resource allocation information sent by the second network device, where the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

Determine, according to the resource allocation information, a second scheduling strategy of the first network device for the terminal device in the served cell within the preset time period;

The second scheduling strategy is used to schedule the terminal device.

In this embodiment, the first network device determines, according to the resource allocation information received from the second network device, the second scheduling policy of the first network device for the terminal device in the served cell within the preset time period. In this technical solution, the available resource capacity of the second network device is not changed, and the first network device can schedule the terminal devices in the cell it serves based on the resource allocation information of the second network device, avoiding the availability of certain terminal devices The problem of less resources and long scheduling period.

In a possible implementation manner of the first aspect, the method further includes:

Determine the edge terminal device and the central terminal device in the cell served by the first network device.

In this embodiment, the first network device can determine the edge terminal device and the central terminal device in the cell it serves based on the degree of interference received by the terminal device, which lays the foundation for the first network device to accurately schedule the terminal device. The interference received by the terminal equipment is reduced, and the performance of the terminal equipment is improved.

In another possible implementation manner of the first aspect, the method further includes:

The channel quality information of the terminal device is updated based on the reference signal received power of the neighboring cell of the terminal device and the channel quality information reported by the terminal device.

In this embodiment, by updating the channel quality information of the terminal device, the performance of the terminal device can be improved, and the user experience can be improved.

In yet another possible implementation manner of the first aspect, the method further includes:

The scheduling priority of each terminal device is determined based on the current scheduling rate, historical scheduling rate, and number of allowed resource blocks of each terminal device in the cell served by the first network device.

In this embodiment, by calculating the scheduling priority of each terminal device together with the current scheduling rate and historical scheduling rate of the allowed resource blocks of each terminal device in the cell served by the first network device, each terminal can be improved The balance of equipment scheduling improves the performance of the entire communication system.

In yet another possible implementation manner of the first aspect, the second scheduling strategy of the first network device for the terminal device in the served cell within the preset time period is determined according to the resource allocation information ,include:

For each transmission time interval within a preset duration corresponding to the preset time period, based on the resource allocation information, it is determined that the second scheduling strategy is that the first network device is only within the transmission time interval during the transmission time interval. Scheduling the terminal device on an unallocated resource block of the second network device.

In this embodiment, the first network device and the second network device perform scheduling in units of each transmission time interval, which improves the accuracy of the scheduling of the terminal device by the first network device and reduces the second network device's scheduling of the first network The interference of the terminal equipment in the equipment serving cell improves the performance of the communication system.

If the first network device reuses the control channel of the second network device, then based on the channel quality information reported by the terminal device, the aggregation level is selected to meet the preset level requirement and/or the occupied symbol resource meets the preset symbol requirement Control channel transmission resources.

In this embodiment, by selecting a control channel transmission resource whose aggregation level satisfies the preset level requirement and/or occupied symbol resource meets the preset symbol requirement, the second network device may already occupy a large amount of control channel resources, Choosing to reuse control channel resources already occupied by the second network device can satisfy the terminal device's need for control channels.

A second aspect of the present application provides a scheduling method, which is applicable to a second network device. The method includes:

Generating resource allocation information, where the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

Sending the resource allocation information to the first network device, so that the first network device determines, according to the resource allocation information, a second scheduling strategy for terminal devices in the served cell within the preset time period.

In this embodiment, the second network device generates resource allocation information, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period, and sends the resource allocation information to the first network equipment. In this way, the available resource capacity of the second network device is not changed, and channel interference with the terminal device in the cell served by the first network device can be avoided, and the performance of the communication system is improved.

In a possible implementation manner of the second aspect, the generating resource allocation information includes:

Generating resource allocation information of the second network device within the preset time period according to the transmission delay between the second network device and the first network device, a preset corresponding to the preset time period The duration is equal to an integer multiple of the transmission time interval, and the preset duration corresponding to the preset time period is greater than the transmission delay.

In this embodiment, the second network device generates resource allocation information within a preset time period in advance, and performs actual scheduling according to the resource allocation information, so that the first network device can determine an accurate second scheduling strategy for the terminal device Avoidance scheduling and interference avoidance are accurate, and the update of channel quality information is stable.

A third aspect of the present application provides a scheduling apparatus, which is applicable to a first network device, and the apparatus includes: a receiving module, a processing module, and a scheduling module;

The receiving module is configured to receive resource allocation information sent by the second network device, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

The processing module is configured to determine, according to the resource allocation information received by the receiving module, a second scheduling strategy for the terminal device in the served cell by the first network device within the preset time period;

The scheduling module is configured to schedule the terminal device using the second scheduling strategy determined by the processing module.

In a possible implementation manner of the third aspect, the device further includes: a determination module;

The determining module is configured to determine an edge terminal device and a central terminal device in a cell served by the first network device.

In a possible implementation manner of the third aspect, the processing module is further configured to update the terminal device based on the reference signal received power of the neighboring cell of the terminal device and the channel quality information reported by the terminal device Channel quality information.

In another possible implementation manner of the third aspect, the processing module is further configured to be based on the current scheduling rate, historical scheduling rate, and number of allowed resource blocks of each terminal device in the cell served by the first network device To determine the scheduling priority of each terminal device.

In still another possible implementation manner of the third aspect, the processing module is specifically configured to determine, based on the resource allocation information, for each transmission time interval within a preset duration corresponding to the preset time period The second scheduling strategy is that the first network device schedules the terminal device only on unallocated resource blocks of the second network device during the transmission time interval.

In another possible implementation manner of the third aspect, the scheduling module is further configured to, when the first network device multiplexes the control channel of the second network device, based on the channel quality reported by the terminal device Information, select the control channel transmission resource whose aggregation level meets the preset level requirement and/or the occupied symbol resource meets the preset symbol requirement.

A fourth aspect of the present application provides a scheduling apparatus suitable for a second network device, the apparatus including: a processing module and a sending module;

The processing module is configured to generate resource allocation information, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

The sending module is configured to send the resource allocation information generated by the processing module to a first network device, so that the first network device determines, according to the resource allocation information, that The second scheduling strategy of the terminal equipment in the serving cell.

In a possible implementation manner of the fourth aspect, the processing module is specifically configured to generate the second network device based on the transmission delay between the second network device and the first network device. For resource allocation information within a preset time period, the preset duration corresponding to the preset time period is equal to an integer multiple of the transmission time interval, and the preset duration corresponding to the preset time period is greater than the transmission delay.

A fifth aspect of the present application provides a scheduling apparatus, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the first aspect described above and The method described in the various possible designs of the first aspect.

A sixth aspect of the present application provides a scheduling apparatus, including a processor, a memory, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the second aspect described above and The method described in the various possible designs of the second aspect.

A seventh aspect of the present application provides a storage medium having instructions stored therein, which when run on a computer, causes the computer to execute the method described in the first aspect and various possible designs of the first aspect .

An eighth aspect of the present application provides a storage medium having instructions stored therein, which when executed on a computer, causes the computer to execute the method described in the second aspect and various possible designs of the second aspect .

A ninth aspect of the present application provides a program product containing instructions, which when run on a computer, causes the computer to execute the method described in the first aspect and various possible designs of the first aspect.

A tenth aspect of the present application provides a program product containing instructions that, when run on a computer, cause the computer to perform the method described in the second aspect and various possible designs of the second aspect.

An eleventh aspect of the present application provides a chip that executes instructions, and the chip is used to execute the method described in the first aspect and various possible designs of the first aspect.

A twelfth aspect of the present application provides a chip that executes instructions, and the chip is used to execute the method described in the second aspect and various possible designs of the second aspect.

A thirteenth aspect of the present application provides a communication system, including: a first network device, a second network device, and a terminal device;

The first network device is the device described in the third aspect and various possible designs of the third aspect;

The second network device is the device described in the fourth aspect and various possible designs in the fourth aspect;

The terminal device includes: terminal devices in a cell served by the first network device;

The first network device determines a scheduling strategy for scheduling the terminal device according to the resource allocation information received from the second network device.

In the scheduling method, apparatus, storage medium, and communication system of the embodiments of the present application, the second network device generates resource allocation information, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period, and Send the resource allocation information to the first network device, and the first network device determines, according to the received resource allocation information, the second scheduling strategy of the first network device for the terminal device in the served cell within the preset time period . In this technical solution, the second network device can schedule the accessed terminal device on all resources without changing the available resource capacity of the second network device, and the first network device can schedule it based on the resource allocation information of the second network device The terminal equipment in the served cell avoids the problems of low available resources and long scheduling period of some terminal equipment, and improves the response rate.

BRIEF DESCRIPTION

1 is a schematic diagram of an application scenario of a scheduling method provided by an embodiment of the present application;

2 is a schematic diagram of the distribution of subframes in a macro cell and a micro cell;

FIG. 3 is a schematic diagram of an interaction process of Embodiment 1 of a scheduling method provided by an embodiment of this application;

4 is a schematic flowchart of Embodiment 2 of a scheduling method provided by an embodiment of this application;

FIG. 5 is a schematic diagram of an interaction process of Embodiment 3 of a scheduling method provided by an embodiment of this application;

6 is a schematic structural diagram of Embodiment 1 of a scheduling apparatus provided by an embodiment of this application;

7 is a schematic structural diagram of Embodiment 2 of a scheduling apparatus provided by an embodiment of this application;

8 is a schematic structural diagram of Embodiment 3 of a scheduling apparatus provided by an embodiment of this application;

9 is a schematic structural diagram of Embodiment 4 of a scheduling apparatus provided by an embodiment of this application;

10 is a schematic structural diagram of an embodiment of a communication system provided by an embodiment of the present application.

detailed description

FIG. 1 is a schematic diagram of an application scenario of a scheduling method provided by an embodiment of the present application. As shown in FIG. 1, the application scenario of the scheduling method includes: a first network device 11, at least one second network device 12, and multiple devices located within the coverage of the first network device 11 and/or the second network device 12 Terminal devices. FIG. 1 exemplarily shows one first network device 11, one second network device 12, and terminal devices 13 to 15. In the communication system of the embodiment shown in FIG. 1, the first network device 11 and the second network device 12 can communicate with terminal devices located within their coverage.

Optionally, in the embodiment shown in FIG. 1, the first network device 11 and the terminal device 13 to the terminal device 15 may form a first communication system, and the terminal device 13 to the terminal device 15 may be sent to the first network separately or simultaneously The device 11 sends uplink data, and may also receive downlink information sent by the first network device 11.

Optionally, as shown in FIG. 1, when the second network device 12 is deployed within the coverage area of the first network device 11, the second network device 12 and the terminal device 15 may form a second communication system. In this second communication system, the terminal device 15 and the second network device 12 can communicate. Further, as shown in FIG. 1, when the coverage of the second network device 12 is expanded by setting a cell range expansion (CRE), the terminal device 14 can be scheduled from the original first network device 11 It becomes scheduled by the second network device 12.

Optionally, the first communication system and the second communication system in this embodiment are not limited to include network devices and terminal devices, as long as there are entities sending information and entities receiving information in the first communication system and the second communication system. However, this embodiment of the present application does not limit this.

Optionally, the first communication system and the second communication system may further include other network entities such as a network controller, a mobility management entity, etc. The embodiments of the present application are not limited thereto.

The communication systems (the first communication system and the second communication system) used in the embodiments of the present application may be a global mobile communication (GSM) system, a code division multiple access (CDMA) system, or a code division multiple access (CDMA) system. Wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (LTE) system, advanced long term evolution (LTE advanced, LTE- A), LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile communication system (universal mobile telecommunication system, UMTS), and other applications orthogonal frequency division multiplexing Wireless communication system using (orthogonal frequency division multiplexing, OFDM) technology, etc. The system architecture and business scenarios described in the embodiments of the present application are to more clearly explain the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. With the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

The first network device and the second network device involved in the embodiments of the present application may be used to provide a wireless communication function for the terminal device, that is, the first network device and the second network device may be one of the network side used to send or The entity receiving the signal. The first network device or the second network device may include various forms of macro base stations, micro base stations (also called small stations), relay stations, access points, and so on. In different communication modes, the network device may have different names. For example, the network device may be a base station (BTS) in GSM or CDMA, or a base station (nodeB, NB) in WCDMA It may also be an evolutionary base station (evolutional node B, eNB or e-NodeB) in LTE, and may be a corresponding device gNB in a 5G network. For convenience of description, in all the embodiments of the present application, the above-mentioned apparatuses that provide wireless communication functions for terminal devices are collectively referred to as network devices.

Exemplarily, in this embodiment, the coverage of the first network device is greater than the coverage of the second network device. Optionally, the first network device may be a macro base station, and the second network device may be a micro base station or a pico base station.

In the embodiment of the present application, the terminal device may be any terminal, for example, the terminal device may be a user device of machine type communication. That is to say, the terminal device may also be referred to as user equipment (UE), mobile station (MS), mobile terminal (mobile terminal), terminal (terminal), etc. The terminal device may be wireless The access network (radio access network, RAN) communicates with one or more core networks. For example, the terminal device may be a mobile phone (or called a "cellular" phone), a computer with a mobile terminal, etc. For example, the terminal device also It can be a portable, pocket-sized, hand-held, computer built-in or vehicle-mounted mobile device that exchanges language and/or data with the wireless access network. There is no specific limitation in the embodiments of the present application.

Optionally, the communication between the first network device and/or the second network device and the terminal device and between the terminal device and the terminal device may be through licensed spectrum or unlicensed spectrum. Communication can also be carried out through licensed spectrum and unlicensed spectrum at the same time. The communication between the first network device and/or the second network device and the terminal device and between the terminal device and the terminal device may use a frequency spectrum below 6 gigahertz (GHz) or a frequency spectrum above 6 GHz, You can also use the spectrum below 6GHz and the spectrum above 6GHz to communicate at the same time. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

In the embodiments of the present application, "multiple" refers to two or more than two. "And/or" describes the relationship of the related objects, indicating that there can be three relationships, for example, A and/or B, which can indicate: there are three conditions: A exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the related object is a "or" relationship.

The following first briefly describes the applicable scenarios of the embodiments of the present application.

Exemplarily, the scheduling method provided in this embodiment may be applicable to ultra-dense networking scenarios, for example, a scenario in which a macro base station and a micro base station are coordinated, a scenario in which a macro base station and a macro base station are coordinated, a scenario in which a micro base station and a micro base station are coordinated, etc. In many different scenarios, this method can be applied to various types of communication systems such as LTE systems and NR systems. The embodiments of the present application do not limit the scenario to which the scheduling method is applicable, nor the communication system to which the scheduling method is applicable, which can be determined according to actual conditions.

For example, in the macro-micro networking scenario of the LTE system, the micro base station is deployed in the macro cell served by the macro base station to offload the macro cell, that is, the terminal device in the macro cell passes through the macro base station in the micro cell Access the network without going through the macro base station. Normally, the power of the micro base station is low and the coverage is small, and the power of the macro base station is high and the coverage is large. The interference of the terminal equipment in the micro area mainly comes from the macro base station corresponding to the macro cell in which it is located.

In practical applications, in order to further reduce the burden of the macro base station and offload the terminal equipment in the macro cell, usually by setting the form of CRE, the coverage of the micro cell is expanded to achieve the purpose of absorbing more terminal equipment. At this time, for the area expanded by the CRE form, since the actual power of the micro base station detected by the terminal device is not necessarily greater than the power of the detected macro cell, the terminal device in the CRE area will be affected by the strong interference of the macro cell. The performance of the terminal equipment in the micro area.

For example, when the extended CRE area is greater than 3dB, that is, when the actual power of the micro base station detected by the terminal device plus 3dB is greater than the power of the detected macro cell, the terminal device located in the CRE area receives interference from the macro cell Stronger.

In response to the above problems, in the prior art, the problem of channel interference between terminal devices is solved by using ABS technology. Specifically, if the channel of the macro cell (for example, physical downlink control channel (PDCCH)) transmits information in each subframe, the channel of the macro cell will seriously interfere with the channel of the terminal device in the micro cell, resulting in the micro cell The terminal equipment inside has dropped calls. In this way, by configuring ABS subframes, the macro cell reduces or does not transmit power on some channels of these ABS subframes, which can avoid channel interference (eg, PDCCH and PDSCH) to terminal devices in the micro cell.

Exemplarily, FIG. 2 is a schematic diagram of subframe distribution in a macro cell and a micro cell. As shown in FIG. 2, for a radio frame in a macro cell, the radio frame includes: regular subframes and ABS subframes, that is, ABS subframes are set in the subframes of the macro cell, and the macro base station does not use ABS subframes to send dedicated terminal equipment Correspondingly, for a radio frame in a micro cell, it includes: a normal subframe and a protected subframe, that is, there is a protected subframe in the subframe of the microcell, and the protected subframe is only affected by the macro cell The pilot frequency and some common channel interference, when the service is running, the interference intensity of the macro cell is small. Therefore, the micro cell can schedule the terminal equipment in the CRE area to the protected subframe, thereby ensuring the normal service of these terminal equipment run.

However, the above method has the following problems: 1. Because the macro base station cannot schedule the ABS subframes set above, the available subframe capacity of the macro base station decreases, and there is a resource loss; 2. The number of ABS subframes in the subframes of the macro base station Limited, in this way, some terminal devices in the cell served by the micro base station have less available resources, and the cycle of the ABS subframe is long, causing certain terminal devices in the cell served by the micro base station to be scheduled for a long period and a low response rate.

It can be understood that, in order to facilitate understanding of the following embodiments, the radio frame structure used in the LTE system is described here. Exemplarily, one radio frame has a length of 10 ms and includes ten subframes of equal size. Each subframe has a length of 1 ms, which includes two time slots, and each time slot has a length of 0.5 ms. The time slot includes multiple orthogonal frequency division multiplexing (OFDM) symbols or single carrier frequency division multiple access (SC-FDMA) symbols in the time domain, and includes multiple resource blocks in the frequency domain .

It can be understood that the number of subframes included in a radio frame, the number of time slots included in a subframe, and the number of OFDM symbols or SC-FDMA symbols included in each time slot can be changed in various ways, and this application implements Examples do not limit it.

In the embodiments of the present application, in view of the above problems, in the scenario of heterogeneous network collaboration, it is urgent to propose a scheduling method to achieve the following objectives: the micro cells deployed in the macro cell have no effect on the available capacity of the macro cell, and all the micro cells The available resources of the terminal equipment are sufficient without affecting the scheduling period, and the response rate of the terminal equipment in the micro area is improved.

Specifically, an embodiment of the present application proposes a scheduling method. The first network device first receives resource allocation information sent by the second network device, and the resource allocation information is used to instruct the second network device within a preset time period. The scheduling strategy, according to the resource allocation information, determines the second scheduling strategy of the first network device for the terminal device in the served cell within a preset time period. In this technical solution, the scheduling of the terminal device by the first network device does not affect the available capacity of the second network device, and it also avoids that the terminal device in the CRE area covered by the first network device has a low response rate and the user The problem of poor experience.

The technical solution of the present application will be described in detail below through specific embodiments. It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 3 is a schematic diagram of an interaction process of Embodiment 1 of a scheduling method provided by an embodiment of this application. The method is described by the information interaction between the first network device and the second network device. Optionally, as an example, the first network device may be a micro base station, and the second network device is a macro base station. As shown in FIG. 3, in this embodiment, the scheduling method may include the following steps:

Step 31: The second network device generates resource allocation information.

The resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period.

Exemplarily, in a scenario where the first network device and the second network device cooperate, the second network device obtains the current service of the terminal device in its serving cell, and according to the resources required by each terminal device to run the corresponding service (for example, time Frequency resources), estimate the resource information occupied by its scheduling terminal device within a preset time period after the current time. That is, the second network device determines the time-frequency resource information allocated to the terminal device and the terminal device information of the time-frequency resource according to the current service information of the terminal device, and generates resources for scheduling the terminal device within the preset time period Assign information.

Optionally, after generating the resource allocation information, the second network device can use the resource allocation information to instruct it how to perform resource scheduling for the terminal equipment in the cell it covers in the preset time period. In this embodiment, The scheme in which the second network device schedules the terminal device according to the resource allocation information is called a first scheduling strategy.

As an example, the second network device may pre-schedule the terminal device according to the above method, generate resource allocation information within a preset time period in advance, and perform actual scheduling according to the resource allocation information during the corresponding preset time period.

As another example, the second network device does not pre-schedule the terminal device according to the above method, but estimates based on the current user and service volume. Therefore, when the terminal device and service volume change at the scheduling time, and There is no guarantee that the second network device must perform actual scheduling according to the estimated resource allocation information. In this embodiment, the scheduling method of the first network device has no change, and the performance has no impact, which can ensure the overall revenue when the first network device and the second network device are cooperatively distributed. However, the actual scheduling strategy in the second network device Affected by the change, the actual scheduling strategy of the second network device acquired by the first network device may be inaccurate, and the accuracy of interference avoidance is relatively low.

Therefore, in the embodiments of the present application, the scenario where the second network device performs actual scheduling according to the generated resource allocation information is mainly used for description.

Step 32: The second network device sends the above resource allocation information to the first network device.

In this embodiment, the second network device may continuously generate resource allocation information according to the length of the preset time period corresponding to the resource allocation information, and continuously send the resource allocation information to the first network device, so that the first network device allocates resources according to the acquired resource The information determines the second scheduling strategy for the terminal devices in the served cell within the corresponding preset time period.

It is worth noting that the communication between the second network device and the first network device performs information transmission through a transmission link between the two, and the transmission link is also called a physical link.

Exemplarily, in this embodiment, after the first network device (eg, micro base station) is deployed in the cell covered by the second network device (eg, macro base station), two terminal devices in the cell may detect two The signal strength of the network device, for example, receives the downlink reference signals sent by the first network device and the second network device, and selects the key points according to the power value of each downlink reference signal and the cell range expansion offset value of the second network device The accessed network device further divides the terminal device into a terminal device of the first network device and a terminal device of the second network device.

Optionally, the terminal devices in the cell covered by the first network device (for example, micro base station) may be further divided into a central terminal device and an edge terminal device. For the specific way of division, please refer to the introduction in the following embodiments, which will not be repeated here.

In this embodiment, the first network device needs to determine the second scheduling strategy for the terminal device in the served cell within the corresponding preset time period according to the obtained resource allocation information.

It can be understood that, because the second network device has less influence on the central terminal device in the cell covered by the first network device, the terminal device in this embodiment mainly refers to an edge terminal that is more affected by the second network device equipment. Optionally, the edge terminal device may be determined according to step 41 in the following embodiments.

Step 33: The first network device determines, according to the received resource allocation information, the second scheduling policy of the first network device for the terminal device in the served cell within the preset time period.

Exemplarily, in this embodiment, the first network device receives the resource allocation information sent by the second network device, and determines the resource information occupied by the terminal device accessing the second network device within a preset time period according to the resource allocation information Therefore, based on the resource information, the principle of resource complementary scheduling or space division scheduling is performed for the terminal devices in the served cell to determine the second scheduling strategy of the first network device for the terminal devices in the served cell, that is, the first A scheduling strategy of network equipment for edge terminal equipment and central terminal equipment.

Exemplarily, when the first network device divides the terminal devices in its serving cell into a central terminal device and an edge terminal device, it may perform resource complementary scheduling on the edge terminal device, and perform air separation scheduling on the central terminal device.

Step 34: The first network device uses the second scheduling strategy to schedule the terminal device.

Optionally, in this embodiment, the resource allocation information may indicate resource information occupied by the terminal device of the second network device of the second network device within a preset time period, in order to avoid the second network device For interference of terminal devices in the served cell, the first network device may schedule the terminal devices in the served cell according to the determined second scheduling policy.

Exemplarily, the first network device schedules the edge terminal device on unallocated resources of the second network device. Since the central terminal device is less interfered by the second network device, the first network device may schedule on all resources Central terminal equipment.

In the scheduling method provided in the embodiment of the present application, the second network device generates resource allocation information, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period, and sends the resource allocation information to The first network device, according to the received resource allocation information, determines the second scheduling policy of the first network device for the terminal device in the served cell within the preset time period. In this technical solution, the second network device can schedule the terminal device accessing it on all resources without changing the available resource capacity of the second network device, and the first network device can be scheduled based on the resource allocation information of the second network device The terminal equipment in the cell served by it avoids the problem that some terminal equipment has less available resources and long scheduling period, and improves the response rate.

Exemplarily, on the basis of the foregoing embodiment, FIG. 4 is a schematic flowchart of Embodiment 2 of a scheduling method provided by an embodiment of the present application. This method is applicable to the first network device. As shown in FIG. 4, in this embodiment, the scheduling method may further include the following steps:

Step 41: Determine the edge terminal device and the central terminal device in the cell served by the first network device.

Optionally, in this embodiment, before scheduling the terminal device in the served cell, the first network device may divide the terminal device in the served cell into the terminal device in the served cell according to the degree of interference received from the second network device Edge terminal equipment and central terminal equipment.

For example, for the scenario of macro-micro cooperation, the terminal device with the main interference source in the micro cell from the coordinated macro cell is defined as a macro-micro edge terminal device, and this part of the terminal device is sensitive to interference from the macro cell.

Exemplarily, in this embodiment, the first network device may divide the terminal devices in its serving cell into Central terminal equipment and edge terminal equipment.

Specifically, for the terminal device in the cell served by the first network device, if the downlink RSRP received by the terminal device from the second network device is not greater than the downlink RSRP received from the first network device and the cell range extension offset value And, the terminal device may be determined as the edge terminal device in the cell served by the first network device; if the downlink RSRP received by the terminal device from the second network device is only not greater than the downlink received from the first network device With RSRP, the terminal device may be determined as the central terminal device in the cell served by the first network device.

Exemplarily, it is assumed that the cell range extension offset value may be -6dB, that is, when the difference between the downlink RSRP received by the terminal device from the second network device and the downlink RSRP received from the first network device is greater than -6dB, and the When the cell covered by the second network device is the cell with the strongest RSRP among all neighboring cells of the first network device, at this time, it may be considered that the cell covered by the second network device has the strongest interference to the terminal device. This part of the terminal device In this embodiment, it is called an edge terminal device.

Optionally, as shown in FIG. 4, in this embodiment, the scheduling method may further include the following steps:

Step 42: Update the channel quality information of the terminal device based on the reference signal received power of the neighboring cell of the terminal device and the channel quality information reported by the terminal device.

Optionally, in this embodiment, after the first network device determines the edge terminal device and the central terminal device in the served cell, it may determine the terminal according to the obtained reference signal received power and the channel quality information reported by the terminal device. The channel quality information of the device is updated.

It is worth noting that the reference signal is usually a downlink reference signal, for example, a synchronization signal (synchronization signal, SS) or a cell-specific reference signal (CRS). The embodiments of the present application do not limit the specific form of the downlink signal, which can be determined according to actual conditions.

Specifically, in this embodiment, the first network device is a micro base station, the served cell is a micro cell, the second network device is a macro base station, the served cell is a macro cell, and the reference signal is CRS.

Exemplarily, when the edge terminal device and the central terminal device in the micro area are determined, the RSRP obtained by the edge terminal device and the central terminal device from the neighboring cell can be filtered respectively to obtain a stable RSRP for G factor calculation . Wherein, the G factor is a ratio of useful RSRP to useless RSRP, and is used to indicate the channel quality of the terminal device.

Optionally, in this embodiment, the RSRP corresponding to the CRS received by the terminal device from the micro cell is called the RSRP of the _serving cell, that is, RSRP _serving , and the power offset value in the micro cell is PA _serving . Therefore, this The RSRP of the terminal equipment on the service channel PDSCH of the micro cell is called PA _serving *RSRP _serving . Similarly, the RSRP corresponding to the CRS received from the cooperating macro cell is called RSRP _macro , and the power offset value in the micro cell is PA _macro , so the RSRP of the terminal device on the PDSCH of the macro cell's traffic channel is called PA _macro *RSRP _macro ; the RSRP corresponding to the CRS received by the terminal device from other neighboring cells (for example, the k-th neighboring cell) is called RSRP _{other, k} , and the power deviation in other neighboring cells (k-th neighboring cell) The set value is PA _other,k , so the RSRP of the terminal device on the traffic channel PDSCH of other neighboring cells (the k-th neighboring cell) is called PA _other,k *RSRP _other,k ; the background received by the terminal device The noise is called N.

In this way, in the macro-micro cooperation scenario, the gain ΔG of the G factor of the terminal device can be expressed by the following formula:

Therefore, the first network device may perform signal-to-interference plus noise ratio (SINR) mapping on the channel quality information (for example, channel quality indicator (CQI)) reported by the terminal device, ΔG In order to improve the SINR of cooperative scheduling, it is reversely mapped to the channel quality information after the cooperative scheduling, and the channel quality information after the cooperative scheduling is used as the updated channel quality information of the terminal device.

Further, as shown in FIG. 4, in this embodiment, the scheduling method may further include the following steps:

Step 43: Determine the scheduling priority of each terminal device based on the current scheduling rate, historical scheduling rate, and number of allowed resource blocks of each terminal device in the cell served by the first network device.

Optionally, in the prior art, the scheduling priority of the network device to the terminal device adopts the default scheduling algorithm, as follows:

among them,

Represents the spectrum efficiency value, which can be used to represent the current scheduling rate of the terminal equipment,

The higher the value, the greater the current scheduling rate. avg_rate represents the historical average rate of the terminal device, min_rate represents the historical minimum rate of the terminal device, γ _conn represents the weight value of the terminal device corresponding to the service level, and γ _UE represents the weight value of the terminal device level. In practical applications, γ _conn and γ _UE are known constant values.

In this formula, the numerator considers the current scheduling rate of the terminal device, and the denominator considers the historical scheduling rate of the terminal device. All terminal devices can use the same number of resource blocks (RBs). However, in the scenario of macro-micro coordinated scheduling, the number of RBs that can be used by the edge terminal device and the central terminal device is different, so the molecule needs to be corrected.

Exemplarily, in this embodiment, the updated scheduling algorithm may be expressed by the following formula:

Among them, for each terminal device, use

replace

Among them, N _RB is the number of RBs available for each terminal device. That is, the edge terminal device participates in the calculation based on the number of remaining RBs in the resource allocation information sent by the macro base station in the current transmission time interval (TTI), and other users (for example, the central terminal device) use all RBs corresponding to the system bandwidth The quantity is involved in the calculation.

It is worth noting that the embodiment of the present application does not limit the execution order of step 42 and step 43, which can be determined according to actual conditions.

In the scheduling method provided in the embodiment of the present application, the first network device determines the edge terminal device and the central terminal device in the cell served by the first network device, based on the reference signal received power of the neighboring cell of the terminal device and the channel reported by the terminal device Quality information, update the channel quality information of the terminal device, and determine the scheduling priority of each terminal device based on the current scheduling rate, historical scheduling rate, and number of allowed resource blocks of each terminal device in the cell served by the first network device level. In this technical solution, the first network device can determine the terminal device and update the channel quality information, which can improve the performance of the terminal device and thereby improve the user experience.

Exemplarily, on the basis of the foregoing embodiment, FIG. 5 is a schematic diagram of an interaction process of Embodiment 3 of a scheduling method provided by an embodiment of the present application. As shown in FIG. 5, in this embodiment, the above step 31 (the second network device generates resource allocation information) may be implemented by the following steps:

Step 51: The second network device generates resource allocation information of the second network device within the preset time period according to the transmission delay between the second network device and the first network device.

The preset duration corresponding to the preset time period is equal to an integer multiple of the transmission time interval, and the preset duration corresponding to the preset time period is greater than the transmission delay.

Optionally, in this embodiment, the second network device may estimate the resource allocation information within a preset time period based on the current service information of all the terminal devices accessed, because the first network device and the second network device There is a transmission delay between them. Therefore, in order for the first network device to schedule the terminal device on resources that do not overlap with the second network device, the preset time period corresponding to the preset time period must be greater than the transmission delay, so that the second network After the device sends the generated resource allocation information to the first network device, the resource allocation information is only useful to the first network device; otherwise, when the resource allocation information of the second network device is sent to the first network device, the first The network equipment has no effective information for avoidance scheduling.

In addition, the network device may schedule the terminal device based on the transmission time interval. Therefore, the preset time period corresponding to the preset time period of the resource allocation information generated by the second network device may be an integer multiple of the transmission time interval as a unit. Therefore, the The preset duration corresponding to the preset time period is an integer multiple of the transmission time interval, and the minimum value of the preset duration corresponding to the preset time period is the sum of one transmission time interval and the transmission delay.

In this embodiment, the second network device generates resource allocation information within a preset time period in advance, and performs actual scheduling according to the resource allocation information, so that the first network device can determine an accurate second scheduling strategy for the terminal device Avoidance scheduling, accurate interference avoidance, and stable update of channel quality information, but for the second network device, it introduces a scheduling delay, which has a negative impact on the scheduling performance of the second network device. The larger the scheduling delay, the greater the The greater the impact of the scheduling performance of the second network device, therefore, in practical applications, it is necessary to ensure that the positive gain of the first network device is greater than the negative gain of the second network device, so as to ensure the overall benefits of heterogeneous network coordination.

Correspondingly, in this embodiment, the above step 33 (the first network device determines, according to the received resource allocation information, that the first network device performs the second task for the terminal device in the served cell within the preset time period Scheduling strategy) can be achieved through the following steps:

Step 52: For each transmission time interval corresponding to the preset time period corresponding to the preset time period, the first network device determines, based on the received resource allocation information, that the second scheduling strategy is that the first network device only The terminal device is scheduled on the unallocated resource block of the second network device.

Exemplarily, in this embodiment, the first network device and the second network device schedule terminal time at transmission time intervals, so the first network device determines after obtaining resource allocation information generated by the second network device The adjustment strategy corresponding to each transmission time interval within the preset time period.

Exemplarily, when the first network device performs source scheduling in each TTI, based on the resource allocation information sent by the second network device, for the edge terminal device, the first network device may only allocate the second network device within the current TTI. Allocated resource blocks; for other devices in the cell served by the first network device, for example, the central terminal device, the first network device can allocate RBs available in the full bandwidth within the current TTI.

In an embodiment of this embodiment, if the first network device does not acquire the resource allocation information sent by the second network device or the acquired resource allocation information does not have the resource allocation information of the current transmission time interval, at this time, the first The network device may not schedule the edge terminal device within the current TTI, or use the CQI reported by the edge terminal device to schedule the edge terminal device; and, allocate the full bandwidth available RB within the current TTI for scheduling other terminal devices including the central terminal device .

In the scheduling method provided in the embodiment of the present application, if the second network device generates resource allocation information of the second network device within a preset time period according to the transmission delay between the second network device and the first network device, the The preset time period corresponds to each transmission time interval within the preset time duration, and the first network device may determine that the first network device is only on resource blocks not allocated by the second network device within the transmission time interval based on the resource allocation information Dispatch the terminal device. In this technical solution, the first network device and the second network device perform scheduling in units of each transmission time interval, which improves the accuracy of scheduling the terminal device and reduces the second network device's ability to serve the terminal in the cell served by the first network device The interference of the equipment improves the performance of the communication system.

Further, on the basis of the foregoing embodiment, for the first network device, the scheduling method may further include the following steps:

If the first network device reuses the control channel of the second network device, based on the channel quality information reported by the terminal device, the control channel transmission whose aggregation level meets the preset level requirement and/or occupies symbol resources meets the preset symbol requirement is selected Resources.

Exemplarily, in this embodiment, according to the foregoing embodiments, it can be known that when the first network device obtains resource allocation information sent by the second network device and performs coordinated scheduling on the terminal device, the first network device and the second network The resource blocks RB occupied between the devices are completely staggered, and the first network device can effectively avoid the interference of the second network device when scheduling the terminal device on the shared channel (for example, PDSCH).

However, for the control channel (for example, PDCCH), if the second network device already occupies a large amount of control channel resources, then the first network device will not have enough idle resources available for the control channel, therefore, the air channel resources in the control channel are insufficient At this time, it is necessary to reuse control channel resources already occupied by the second network device.

Specifically, as an example, the first network device may select a sufficient aggregation level for the control channel of the terminal device based on the channel quality information (for example, CQI) reported by the terminal device, that is, select the aggregation level to meet the preset level requirement Control channel transmission resources to improve the anti-interference performance of the control channel.

As another example, when the first network device reuses the control channel resources already occupied by the second network device, the first network device may enable the symbol adaptation function of the control channel to expand the symbol resources according to the requirements of the control channel, That is, a control channel transmission resource that occupies symbol resources that meets the requirements of preset symbols is selected.

It can be known from the above embodiments that, first of all, the second network device in this application does not need to separately reserve resources for the terminal devices in the cell covered by the first network device, therefore, it does not affect the availability of the cell covered by the second network device The capacity of the resource.

Secondly, when the number of resource blocks that the first network device can use to schedule the terminal device can be determined according to the number of resource blocks occupied by the second network device, it can use all resource blocks not occupied by the second network device. Therefore, the first network device The number of resource blocks available in the terminal equipment within is relatively large. For example, if the load of the second network device occupies only 50% of the resources, then the maximum available resources of the terminal device in the first network device are the remaining 50% of the resources.

Thirdly, the scheduling period of the terminal device in the first network device is not limited by the period of the ABS, and the 1 ms scheduling period is implemented to avoid the problem of a slow response rate.

Finally, the technical solutions of the embodiments of the present application can also be superimposed on the above ABS technology, so that the communication system can always obtain higher gain than using the ABS technology, and improve the performance of the communication system.

The following is an embodiment of the device of the present application, which can be used to execute the method embodiment of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

6 is a schematic structural diagram of Embodiment 1 of a scheduling apparatus provided by an embodiment of this application. The apparatus may be integrated in the first network device, or may be implemented by the first network device. As shown in FIG. 6, the device may include: a receiving module 61, a processing module 62, and a scheduling module 63.

The receiving module 61 is configured to receive resource allocation information sent by the second network device, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

The processing module 62 is configured to determine, according to the resource allocation information received by the receiving module 61, the second scheduling policy of the first network device for the terminal device in the served cell within the preset time period;

The scheduling module 63 is configured to use the second scheduling strategy determined by the processing module 62 to schedule the terminal device.

Exemplarily, in a possible design of this embodiment, the processing module 62 is also used to determine the edge terminal device and the central terminal device in the cell served by the first network device.

Exemplarily, in the above possible design of this embodiment, the processing module 62 is further configured to update the terminal based on the reference signal received power of the neighboring cell of the terminal device and the channel quality information reported by the terminal device The channel quality information of the device.

Exemplarily, in another possible design of this embodiment, the processing module 62 is further configured to be based on the current scheduling rate, historical scheduling rate, and allowable use of each terminal device in the cell served by the first network device The number of resource blocks determines the scheduling priority of each terminal device.

Exemplarily, in another possible design of this embodiment, the processing module 62 is specifically configured to, based on the resource allocation information, for each transmission time interval corresponding to the preset time period and within a preset time period, It is determined that the second scheduling strategy is that the first network device schedules the terminal device only on unallocated resource blocks of the second network device during the transmission time interval.

Exemplarily, in another possible design of this embodiment, the scheduling module 63 is further configured to report based on the terminal device when the first network device multiplexes the control channel of the second network device Channel quality information, select the control channel transmission resource whose aggregation level meets the preset level requirement and/or the occupied symbol resource meets the preset symbol requirement.

The scheduling apparatus of this embodiment may be used to execute the implementation solution of the first network device in the method embodiments shown in FIG. 3 to FIG. 5. The specific implementation manner and the technical effect are similar, and are not described herein again.

7 is a schematic structural diagram of Embodiment 2 of a scheduling apparatus provided by an embodiment of this application. The apparatus may be integrated in the second network device, or may be implemented by the second network device. As shown in FIG. 7, the device may include: a processing module 71 and a sending module 72.

Wherein, the processing module 71 is configured to generate resource allocation information, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

The sending module 72 is configured to send the resource allocation information generated by the processing module 72 to the first network device, so that the first network device determines that the resource allocation information is within the preset time period according to the resource allocation information. The second scheduling strategy of the terminal equipment in the served cell.

Exemplarily, in a possible design of this embodiment, the foregoing processing module 71 is specifically configured to generate the second network device according to a transmission delay between the second network device and the first network device Resource allocation information within the preset time period, the preset duration corresponding to the preset time period is equal to an integer multiple of the transmission time interval, and the preset duration corresponding to the preset time period is greater than the transmission delay .

The scheduling apparatus of this embodiment may be used to execute the implementation solution of the second network device in the method embodiments shown in FIG. 3 and FIG. 5. The specific implementation manner and technical effect are similar, and are not described here again.

It should be noted that it should be understood that the division of each module in the devices shown in FIGS. 6 and 7 above is only a division of logical functions, and may be integrated in whole or part into a physical entity or physically separated in actual implementation. And these modules can all be implemented in the form of software calling through processing elements; they can also be implemented in the form of hardware; some modules can also be implemented in the form of calling software through processing elements, and some modules can be implemented in the form of hardware. For example, the determination module may be a separately established processing element, or may be integrated in a chip of the above device, and may also be stored in the memory of the above device in the form of a program code, and a processing element of the above device Call and execute the function of the above determination module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together or can be implemented independently. The processing element described herein may be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by instructions in the form of hardware integrated logic circuits or software in the processor element.

For example, the above modules may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (application specific integrated circuits, ASIC), or one or more microprocessors (digital signal processor (DSP), or, one or more field programmable gate array (FPGA), etc. As another example, when a certain module above is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. As another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions may be stored in a readable storage medium, or transmitted from one readable storage medium to another readable storage medium. For example, the computer instructions may be from a website site, computer, server, or data center via wired ( For example, coaxial cable, optical fiber, digital subscriber line (DSL) or wireless (such as infrared, wireless, microwave, etc.) to another website, computer, server or data center. The readable storage medium may be any available medium that can be accessed by a computer or a data storage device including a server, a data center, and the like integrated with one or more available media. The usable medium may be a magnetic medium (eg, floppy disk, hard disk, magnetic tape), optical medium (eg, DVD), or semiconductor medium (eg, solid state disk (SSD)), or the like.

8 is a schematic structural diagram of Embodiment 3 of a scheduling apparatus provided by an embodiment of this application. The apparatus may be integrated in the first network device, or may be implemented by the first network device. As shown in FIG. 8, the device may include a processor 81, a memory 82, a communication interface 83, and a system bus 84. The memory 82 and the communication interface 83 are connected to the processor 81 through the system bus 84 and After completing the communication with each other, the memory 82 is used to store computer-executed instructions, the communication interface 83 is used to communicate with other devices, and the processor 81 is implemented as shown in FIGS. 3 to 5 when the computer program is executed The implementation scheme of the first network device in the method embodiment.

9 is a schematic structural diagram of Embodiment 4 of a scheduling apparatus provided by an embodiment of this application. The apparatus may be integrated in the second network device, or may be implemented by the second network device. As shown in FIG. 9, the device may include a processor 91, a memory 92, a communication interface 93, and a system bus 94. The memory 92 and the communication interface 93 are connected to the processor 91 through the system bus 94 and After completing communication with each other, the memory 92 is used to store computer-executed instructions, the communication interface 93 is used to communicate with other devices, and the processor 91 executes the computer program as shown in FIGS. 3 and 5 An implementation solution of the second network device in the method embodiment.

The system bus mentioned in FIG. 8 or FIG. 9 may be a peripheral component interconnection (PCI) bus or an extended industry standard architecture (EISA) bus. The system bus can be divided into an address bus, a data bus, and a control bus. For ease of representation, only a thick line is used in the figure, but it does not mean that there is only one bus or one type of bus. The communication interface is used to implement communication between the database access device and other devices (such as client, read-write library, and read-only library). The memory may include random access memory (random access memory, RAM), or may also include non-volatile memory (non-volatile memory), for example, at least one disk storage.

The aforementioned processor may be a general-purpose processor, including a central processing unit CPU, a network processor (NP), etc.; it may also be a digital signal processor DSP, an application specific integrated circuit ASIC, a field programmable gate array FPGA, or other available Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.

Optionally, an embodiment of the present application provides a storage medium that stores instructions that when run on a computer, causes the computer to execute the first network in the method embodiments shown in FIG. 3 to FIG. 5 described above Implementation plan of the equipment.

Optionally, an embodiment of the present application further provides a storage medium that stores instructions, which when run on the computer, causes the computer to execute the second method embodiment shown in FIGS. 3 and 5 above Implementation scheme of network equipment.

Optionally, an embodiment of the present application further provides a chip that runs an instruction, and the chip is used to execute the implementation solution of the first network device in the method embodiments shown in FIG. 3 to FIG. 5.

Optionally, an embodiment of the present application further provides a chip that runs an instruction, and the chip is used to execute the implementation solution of the second network device in the method embodiments shown in FIG. 3 and FIG. 5.

An embodiment of the present application further provides a program product, the program product includes a computer program, the computer program is stored in a storage medium, and at least one processor can read the computer program from the storage medium, the at least one When the processor executes the computer program, the implementation solution of the first network device in the method embodiments shown in FIG. 3 to FIG. 5 may be implemented.

An embodiment of the present application further provides a program product, the program product includes a computer program, the computer program is stored in a storage medium, and at least one processor can read the computer program from the storage medium, the at least one When the processor executes the computer program, an implementation solution of the second network device in the method embodiments shown in FIG. 3 and FIG. 5 may be implemented.

10 is a schematic structural diagram of an embodiment of a communication system provided by an embodiment of the present application. As shown in FIG. 10, the communication system may include: a first network device 101, a second network device 102, and a terminal device 103.

The first network device 101 may be the scheduling apparatus of the embodiment shown in FIG. 6 or FIG. 8; the second network device 102 is the scheduling apparatus of the embodiment shown in FIG. 7 or FIG. 9; the terminal device 103 includes : The terminal device in the cell served by the first network device 101.

Exemplarily, in this embodiment, the first network device 101 may determine a scheduling strategy for scheduling the terminal device according to the resource allocation information received from the second network device 102.

In this embodiment, for the specific implementation of the first network device 101 and the second network device 102, reference may be made to the records in the foregoing embodiment, and details are not described herein again.

In this application, "at least one" refers to one or more, and "multiple" refers to two or more. "And/or" describes the relationship of the related objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the related object is a "or" relationship; in the formula, the character "/" indicates that the related object is a "divide" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one item (a) in a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be a single or multiple Pcs.

It can be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application.

It can be understood that, in the embodiments of the present application, the size of the sequence numbers of the above processes does not mean that the execution order is sequential, and the execution order of each process should be determined by its function and internal logic, and should not be implemented for this application. The implementation process of the examples constitutes no limitation.

Claims

A scheduling method characterized by being applicable to a first network device, the method includes:

Receiving resource allocation information sent by the second network device, where the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

Determine, according to the resource allocation information, a second scheduling strategy of the first network device for the terminal device in the served cell within the preset time period;

The second scheduling strategy is used to schedule the terminal device.
The method according to claim 1, wherein the method further comprises:

The channel quality information of the terminal device is updated based on the reference signal received power of the neighboring cell of the terminal device and the channel quality information reported by the terminal device.
The method according to claim 1 or 2, wherein the method further comprises:

The scheduling priority of each terminal device is determined based on the current scheduling rate, historical scheduling rate, and number of allowed resource blocks of each terminal device in the cell served by the first network device.
The method according to any one of claims 1-3, wherein the determining, according to the resource allocation information, that the first network device is within a preset time period for terminal devices in a served cell The second scheduling strategy includes:

For each transmission time interval within a preset duration corresponding to the preset time period, based on the resource allocation information, it is determined that the second scheduling strategy is that the first network device is only within the transmission time interval during the transmission time interval. Scheduling the terminal device on an unallocated resource block of the second network device.
The method according to any one of claims 1 to 4, wherein the method further comprises:

If the first network device reuses the control channel of the second network device, then based on the channel quality information reported by the terminal device, the aggregation level is selected to meet the preset level requirement and/or the occupied symbol resource meets the preset symbol requirement Control channel transmission resources.
A scheduling method characterized by being applicable to a second network device, the method includes:

Generating resource allocation information, where the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

Sending the resource allocation information to the first network device, so that the first network device determines, according to the resource allocation information, a second scheduling strategy for terminal devices in the served cell within the preset time period.
The method according to claim 6, wherein the generating resource allocation information includes:

Generating resource allocation information of the second network device within the preset time period according to the transmission delay between the second network device and the first network device, a preset corresponding to the preset time period The duration is equal to an integer multiple of the transmission time interval, and the preset duration corresponding to the preset time period is greater than the transmission delay.
A scheduling device is characterized by being applicable to a first network device, and the device includes: a receiving module, a processing module and a scheduling module;

The receiving module is configured to receive resource allocation information sent by the second network device, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

The processing module is configured to determine, according to the resource allocation information received by the receiving module, a second scheduling strategy for the terminal device in the served cell by the first network device within the preset time period;

The scheduling module is configured to schedule the terminal device using the second scheduling strategy determined by the processing module.
The device according to claim 8, characterized in that

The processing module is also used to update the channel quality information of the terminal device based on the reference signal received power of the neighboring cell of the terminal device and the channel quality information reported by the terminal device.
The device according to claim 8 or 9, characterized in that

The processing module is further configured to determine the scheduling priority of each terminal device based on the current scheduling rate, historical scheduling rate, and number of allowed resource blocks of each terminal device in the cell served by the first network device.
The apparatus according to any one of claims 8 to 10, wherein the processing module is specifically configured to correspond to each transmission time interval within a preset duration for the preset time period based on the resource allocation Information, it is determined that the second scheduling strategy is that the first network device schedules the terminal device only on unallocated resource blocks of the second network device during the transmission time interval.
The device according to any one of claims 8-11, characterized in that

The scheduling module is further configured to select an aggregation level to meet a preset level requirement based on channel quality information reported by the terminal device when the first network device multiplexes the control channel of the second network device and/or Control channel transmission resources that occupy symbol resources that meet the requirements of the preset symbols.
A scheduling device, characterized in that it is suitable for a second network device, the device includes: a processing module and a sending module;

The processing module is configured to generate resource allocation information, and the resource allocation information is used to indicate the first scheduling strategy of the second network device within a preset time period;

The sending module is configured to send the resource allocation information generated by the processing module to a first network device, so that the first network device determines, according to the resource allocation information, that The second scheduling strategy of the terminal equipment in the serving cell.
The apparatus according to claim 13, wherein the processing module is specifically configured to generate the second network device in the network based on the transmission delay between the second network device and the first network device In the resource allocation information in the preset time period, the preset duration corresponding to the preset time period is equal to an integer multiple of the transmission time interval, and the preset duration corresponding to the preset time period is greater than the transmission delay.
A scheduling device includes a processor, a memory, and a computer program stored on the memory and executable on the processor, characterized in that, when the processor executes the program, any of the foregoing claims 1-5 is implemented. One of the methods.
A scheduling device includes a processor, a memory, and a computer program stored on the memory and executable on the processor, characterized in that, when the processor executes the program, it is implemented as described in claim 6 or 7 above The method described.
A storage medium characterized in that instructions are stored in the storage medium, and when it runs on a computer, it causes the computer to execute the method according to any one of claims 1-5.
A storage medium characterized in that instructions are stored in the storage medium, which when run on a computer, causes the computer to execute the method according to claim 6 or 7.
A communication system, characterized in that it includes: a first network device, a second network device and a terminal device;

The first network device is the device according to any one of claims 8-12 or the device according to claim 15;

The second network device is the device according to any one of claims 13 or 14 or the device according to claim 16;

The terminal device includes: terminal devices in a cell served by the first network device;

The first network device determines a scheduling strategy for scheduling the terminal device according to the resource allocation information received from the second network device.