CN111132318B

CN111132318B - Resource scheduling method and device

Info

Publication number: CN111132318B
Application number: CN201811289855.5A
Authority: CN
Inventors: 胡远洲; 丁梦颖; 廖树日; 汪凡
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2022-07-19
Anticipated expiration: 2038-10-31
Also published as: CN111132318A; WO2020088342A1

Abstract

The embodiment of the application provides a resource scheduling method and a resource scheduling methodThe device relates to the field of communication, and can enhance the coverage of the SR of the terminal equipment. The method comprises the following steps: terminal equipment determines K for transmitting SR₁A time slot, wherein K₁Is an integer greater than or equal to 2; determining the K₁K for transmitting SR in each time slot of a plurality of time slots₂A number of SR resources; wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more; at the K₁×K₂And transmitting the SR to the base station on the SR resource. The embodiment of the application is applied to the data transmission process.

Description

Resource scheduling method and device

Technical Field

The present application relates to the field of communications, and in particular, to a resource scheduling method and apparatus.

Background

In a wireless communication system, when a terminal device needs to perform uplink transmission to a base station, a Scheduling Request (SR) may be sent to the base station through a specific SR resource configured by the base station, where the SR is used to request the base station to allocate an uplink transmission resource to the terminal device. After receiving the SR sent by the terminal device, the base station may configure a specific frequency domain resource for the terminal device to send uplink data.

At present, in a New Radio (NR) system, for scenes such as internet of things (IoT) and Machine Type Communication (MTC), coverage of an SR of a terminal device needs to be enhanced and the number of terminal devices connected to a huge number needs to be supported. At this time, if a specific SR resource is configured for each terminal device, the overhead of the SR resource is very large, and the requirements of wide coverage, the number of super-large connected terminal devices, and the like cannot be well met.

Disclosure of Invention

The embodiment of the application provides a resource scheduling method and device, which can enhance the coverage of an SR of a terminal device.

In a first aspect, an embodiment of the present application provides a resource scheduling method, including: determining K for transmitting scheduling requests SR of terminal equipment₁A time slot; wherein, K₁Is an integer of 2 or more; determining the K₁K for transmitting SR of the terminal device in each of the time slots₂A SR resource; wherein,one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more; at the K₁×K₂And transmitting the SR of the terminal equipment to the network equipment on the SR resource.

In the prior art, a base station needs to configure a specific SR resource for each terminal device, which causes very high overhead of the SR resource and cannot well support the requirement of wide coverage. In the embodiment of the application, the terminal equipment can be at K₁×K₂The SR of the terminal device is sent to the network device on one SR resource, that is, K in one timeslot can be sent₂One SR resource repeated transmission K₁Second, the coverage of the SR of the terminal device can be improved.

In one possible implementation, for the K₁The ith time slot of the time slots, for K in the ith time slot₂A j-th SR resource in the SR resources, wherein the cyclic shift value of the SR of the terminal equipment transmitted on the j-th SR resource is determined according to i and j; wherein i is 0 or more and K or less₁-1, j is an integer of 0 or more and K or less₂-an integer of 1. It will be appreciated that the ith time slot, K₂An ith repetition of the SR resource, and a symbol sequence number of a jth SR resource within the ith repetition is determined. Therefore, determining the cyclic shift value of the SR of the terminal device according to i and j can be equivalent to determining the cyclic shift value by the timeslot number corresponding to the ith repetition and the symbol number where the jth SR resource is located in the ith repetition. Based on the scheme, SR resources of different terminal devices can correspond to respective cyclic shift values, so that more terminal device connection numbers can be supported.

In a possible implementation manner, the cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i and j, and includes: the cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i, j and the identity of the terminal device. That is, the corresponding cyclic shift values may be determined for the SRs transmitted on the plurality of SR resources corresponding to the terminal device by i, j and the identifier of the terminal device. Therefore, when the SR resources of a plurality of terminal devices are the same, different terminal devices can be distinguished according to the cyclic shift value corresponding to the SR resources, so that more terminal device connection numbers can be supported. Alternatively, a cyclic shift parameter of the terminal device may be received from the network device, and a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i, j and the cyclic shift parameter. In this way, different terminal devices may configure their respective cyclic shift parameters, for example, different terminal devices may correspond to different cyclic shift values, so that more terminal device connection numbers may be supported.

In one possible implementation, the number of bits used to indicate the information field of the cyclic shift parameter is in accordance with K₁、K₂And the number of (available) cyclic shifts supportable by one SR resource. In particular, K of the terminal device₁×K₂The SR resource may correspond to a cyclic shift pattern comprising K₁×K₂And a cyclic shift value corresponding to each SR resource in the SR resources. For example, assume K₁And K₂Has a maximum value of

And

the supportable cyclic shift number in one SR resource is N_csThen, then

The number of cyclic shift patterns that can be supported by the SR resources at most may be

So that the number of bits used to indicate the information field of the cyclic shift parameter can be at least

In the method, the terminal equipment is instructed to determine the cyclic shift pattern through the cyclic shift parameter, the required bit number is less, and the signaling overhead can be reduced.

In a possible implementation manner, the cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i and j, and includes: the cyclic shift value of the terminal equipment SR transmitted on the jth SR resource is determined according to i, j and a pseudo-random sequence; the initialization value of the pseudo-random sequence is determined according to the identifier of the terminal device, or the value of the pseudo-random sequence is determined according to the cell identifier of the cell in which the terminal device is located and the identifier of the terminal device. Based on the scheme, SR resources of different terminal devices can correspond to respective cyclic shift values, so that more terminal device connection numbers can be supported.

The Pseudo-random Sequence may be a Pseudo-random Sequence in a Long Term Evolution (LTE) protocol, or may also be another Pseudo-noise Sequence (PN) Sequence, a Gold Sequence (a Pseudo-random Sequence proposed by r.gold on the basis of an m-Sequence), and the like, which is not limited in this application.

In one possible implementation, at K₁×K₂The sending the SR of the terminal device to the network device on the SR resource includes: at K₁×K₂×K₃Transmitting the SR of the terminal device to the network device on the SR resource, the K₁×K₂×K₃One SR resource is the K₁×K₂K of SR resource₃Repeating for the second time; wherein, K₃Is an integer of 2 or more.

In the prior art, a base station needs to configure a specific SR resource for each terminal device, which causes very high overhead of the SR resource and cannot well support the requirement of wide coverage. In this application, the terminal device may be at K₁×K₂×K₃Sending SR of terminal equipment to network equipment on SR resource, namely K₁K within one time slot₁×K₂One SR resource repeated transmission K₃Second, the coverage of the SR of the terminal device can be improved. And, due to K₁×K₂K of SR resource₃K contained in any two of the minor repeats₁×K₂The SR resources are the sameTherefore, the receiver has low detection complexity, good detection performance and low overhead of high-level signaling indication.

In a second aspect, an embodiment of the present application provides a resource scheduling method, including: determining K for transmitting scheduling requests SR of terminal equipment₁A time slot, wherein K₁Is an integer of 2 or more; determining the K₁K for transmitting SR of terminal device in each time slot of a plurality of time slots₂A plurality of SR resources, wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more; at the K₁×K₂And receiving the SR of the terminal equipment on the SR resource.

In a third aspect, an embodiment of the present application provides an apparatus, which may be a terminal device, or an apparatus capable of supporting the terminal device to implement any one of the methods in the first aspect, for example, the apparatus may be an apparatus in a terminal device, and the apparatus may include: a determining unit and a transmitting unit; these units may perform corresponding functions performed by the terminal device in any design example of the first aspect, specifically: the determination unit is used for determining K of the scheduling request SR of the transmission terminal equipment₁A time slot, wherein K₁Is an integer of 2 or more; the determination unit is also used for determining the K₁K for transmitting SR of terminal device in each time slot of a plurality of time slots₂A plurality of SR resources, wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more; the sending unit is used for sending the K₁×K₂And transmitting the SR of the terminal equipment to the network equipment on the SR resource.

In one possible implementation, for the K₁The ith time slot of the time slots, for K in the ith time slot₂A j-th SR resource in the SR resources, wherein the cyclic shift value of the SR of the terminal equipment transmitted on the j-th SR resource is determined according to i and j; wherein i is 0 or more and K or less₁An integer of-1, j is 0 or more and K or less₂-an integer of 1.

In a possible implementation manner, the cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i, j and the identifier of the terminal device; or, the apparatus further includes a receiving unit configured to receive, from the network device, a cyclic shift parameter of the terminal device, where a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i, j and the cyclic shift parameter.

In one possible implementation, the number of bits used to indicate the information field of the cyclic shift parameter is in accordance with K₁、K₂And a number of cyclic shifts supportable by the SR resource.

In a possible implementation manner, the cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i, j and a pseudo random sequence; the initialization value of the pseudo-random sequence is determined according to the identifier of the terminal device, or the value of the pseudo-random sequence is determined according to the cell identifier of the cell in which the terminal device is located and the identifier of the terminal device.

In a possible implementation manner, the sending unit is specifically configured to: at K₁×K₂×K₃Transmitting the SR of the terminal device to the network device on the SR resource, the K₁×K₂×K₃One SR resource is the K₁×K₂K of SR resource₃Repeating for the second time; wherein, K₃Is an integer of 2 or more.

In a fourth aspect, an embodiment of the present application provides an apparatus, which may be a network device, or an apparatus capable of supporting a network device to implement any of the methods in the second aspect, for example, the apparatus may be an apparatus in a network device, and the apparatus may include: a determining unit and a receiving unit; these units may perform corresponding functions performed by the network device in any design example of the second aspect, specifically: the determination unit is used for determining K of the scheduling request SR of the transmission terminal equipment₁A time slot, wherein K₁Is an integer of 2 or more; the determination unit is also used for determining the K₁For transmitting the terminal in each of a plurality of time slotsK of SR of end equipment₂A plurality of SR resources, wherein one SR resource corresponds to one or more symbols, K₂Is an integer greater than or equal to 2; the receiving unit is used for receiving the K₁×K₂And receiving the SR of the terminal equipment on the SR resource.

In a possible implementation manner, the cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i, j and the identifier of the terminal device; or, the apparatus further includes a sending unit, configured to send a cyclic shift parameter to the terminal device, where a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource is determined according to i, j and the cyclic shift parameter.

In a possible implementation manner, the receiving unit is specifically configured to: at K₁×K₂×K₃Receiving the SR of the terminal equipment on the SR resource, the K₁×K₂×K₃One SR resource is the K₁×K₂K of SR resource₃Repeating for the second time; wherein, K₃Is largeOr an integer equal to 2.

In a fifth aspect, an embodiment of the present application further provides an apparatus, where the apparatus includes a processor, and is configured to implement the function of the terminal device in the method described in the first aspect. The apparatus may also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor may call and execute the program instructions stored in the memory, so as to implement the functions of the terminal device in the method described in the first aspect. The apparatus may also include a communication interface for the apparatus to communicate with other devices. Illustratively, the other device is a network device.

In one possible arrangement, the apparatus comprises:

a communication interface for supporting communication between the apparatus and other network elements.

A memory for storing program instructions;

a processor for determining K for transmitting scheduling request SR of terminal device₁A time slot; wherein, K₁Is an integer greater than or equal to 2; determining the K₁K for transmitting SR of the terminal device in each of the time slots₂A SR resource; wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more;

the processor may also utilize the communication interface at K₁×K₂And transmitting the SR of the terminal equipment to the network equipment on the SR resource.

In one possible implementation, for the K₁The ith time slot of the time slots, for K in the ith time slot₂The processor is used for determining the cyclic shift value of the SR of the terminal equipment transmitted on the jth SR resource according to i and j; wherein i is 0 or more and K or less₁An integer of-1, j is 0 or more and K or less₂-an integer of 1.

In a possible implementation manner, the processor is configured to determine a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource according to i, j and the identifier of the terminal device; or, the processor is configured to receive a cyclic shift parameter of the terminal device from the network device using the communication interface, and to determine a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource according to i, j and the cyclic shift parameter.

In a possible implementation manner, the processor is configured to determine a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource according to i, j and a pseudo random sequence; the initialization value of the pseudo-random sequence is determined according to the identifier of the terminal device, or the value of the pseudo-random sequence is determined according to the cell identifier of the cell in which the terminal device is located and the identifier of the terminal device.

In one possible implementation, the processor is configured to, with the communication interface: at K₁×K₂×K₃Transmitting the SR of the terminal device to the network device on the SR resource, the K₁×K₂×K₃One SR resource is the K₁×K₂K of SR resource₃Repeating for the second time; wherein, K₃Is an integer of 2 or more.

In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform any one of the methods provided in the first aspect.

In a seventh aspect, an embodiment of the present invention provides a computer program product including instructions, which when executed on a computer, cause the computer to perform any one of the methods provided in the first aspect.

In an eighth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor and may further include a memory, and is configured to implement the function of the terminal device in the foregoing method. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a ninth aspect, an embodiment of the present application further provides an apparatus, where the apparatus includes a processor, and is configured to implement the function of the network device in the method described in the second aspect. The apparatus may also include a memory for storing program instructions and data. The memory is coupled to the processor, and the processor can call and execute the program instructions stored in the memory, so as to implement the functions of the network device in the method described in the second aspect. The apparatus may also include a communication interface for the apparatus to communicate with other devices. Illustratively, the other device is a terminal device.

In one possible arrangement, the apparatus comprises:

A memory for storing program instructions;

a processor for determining K of SR for transmitting terminal device₁A time slot; wherein, K₁Is an integer of 2 or more; determining the K₁K for transmitting SR of terminal device in each time slot of a plurality of time slots₂A number of SR resources; wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more;

the processor may also utilize the communication interface at K₁×K₂And receiving the SR of the terminal equipment on the SR resource.

In a possible implementation manner, the processor is configured to determine a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource according to i, j and the identifier of the terminal device; or, the processor is configured to send a cyclic shift parameter to the terminal device by using the communication interface, and determine a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource according to i, j and the cyclic shift parameter.

In a possible implementation manner, the processor is configured to determine a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource according to i, j and the pseudo random sequence; the initialization value of the pseudo random sequence is determined according to the identifier of the terminal device, or the value of the pseudo random sequence is determined according to the cell identifier of the cell in which the terminal device is located and the identifier of the terminal device.

In one possible implementation, the processor is configured to, with the communication interface: at K₁×K₂×K₃Receiving the SR sent by the terminal equipment on the SR resource, the K₁×K₂×K₃One SR resource is the K₁×K₂K of SR resource₃Repeating for the second time; wherein, K₃Is an integer of 2 or more.

In a tenth aspect, an embodiment of the present invention provides a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform any one of the methods provided in the second aspect.

In an eleventh aspect, embodiments of the present invention provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform any one of the methods provided in the second aspect.

In a twelfth aspect, an embodiment of the present application provides a chip system, where the chip system includes a processor and may further include a memory, and is configured to implement the function of the network device in the foregoing method. The chip system may be formed by a chip, and may also include a chip and other discrete devices.

In a thirteenth aspect, the present application provides a system, where the system includes the apparatus in the third aspect or the fifth aspect, and the apparatus in the fourth aspect or the ninth aspect.

Drawings

Fig. 1 is a schematic diagram of a system architecture to which a resource scheduling method according to an embodiment of the present invention is applicable;

FIG. 2 is a schematic diagram of an apparatus according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure;

fig. 4 is a schematic signal interaction diagram of a resource scheduling method according to an embodiment of the present application;

FIG. 5 shows a K according to an embodiment of the present application₁×K₂A schematic of a plurality of SR resources;

fig. 6 is a schematic signal interaction diagram of a resource scheduling method according to an embodiment of the present application;

FIG. 7 shows a K according to an embodiment of the present application₁×K₂×K₃A schematic of SR resources;

FIG. 8 is a schematic diagram of an apparatus according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of an apparatus according to an embodiment of the present application.

Detailed Description

The embodiment of the application provides a resource scheduling method and a resource scheduling device, which are applied to a data transmission process and comprise one or more of the following processes of sending data: a process in which a network device (e.g., a base station) transmits data to a terminal device, a process in which a terminal device transmits data to a network device, a process in which a terminal device transmits data to a terminal device, and a process in which a network device (e.g., a micro base station) transmits data to a network device (e.g., a macro base station). The embodiments of the present application may be applied to, for example and without limitation, a New radio access technology (New RAT) system, an LTE-Advanced system, and a Machine Type Communication (MTC) system. Wherein LTE-Advanced is an evolution of LTE. The New RAT or NR may also be referred to as the fifth generation (5G) mobile communication system.

Fig. 1 is a schematic diagram of a communication system to which the technical solution provided by the embodiment of the present application is applicable, where the communication system may include a network device 100 and one or more terminal devices 200 (only 1 is shown in fig. 1) connected to the network device 100. Data transmission can be carried out between the network equipment and the terminal equipment.

The network device 100 may be a device capable of communicating with the terminal device 200. For example, the network device 100 may be a base station, which may be a Base Transceiver Station (BTS) in global system for mobile communication (GSM) or Code Division Multiple Access (CDMA), a node B (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved node B (evolved NodeB, eNB, or eNodeB) in LTE, a base station in NR, a relay station, an access point, or a base station in a future network, and the like, and the present embodiment is not limited thereto. Herein, the base station in the NR may also be referred to as a Transmission Reception Point (TRP) or a gNB. In this embodiment of the present application, the apparatus for implementing the function of the network device may be a network device, or may be an apparatus capable of supporting the network device to implement the function, for example, a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a network device is taken as an example of a network device, and the technical solution provided in the embodiment of the present application is described.

The terminal device 200 in the embodiment of the present application may also be referred to as a terminal, and may be a device having a wireless transceiving function, where the terminal may be deployed on land, including indoors or outdoors, handheld, or in a vehicle; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal device may be a User Equipment (UE). Wherein the UE comprises a handheld device, an in-vehicle device, a wearable device, or a computing device with wireless communication capabilities. Illustratively, the UE may be a mobile phone (mobile phone), a tablet computer, or a computer with wireless transceiving function. The terminal device may also be a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in unmanned driving, a wireless terminal in telemedicine, a wireless terminal in smart grid, a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and so on. In the embodiment of the present application, the apparatus for implementing the function of the terminal may be the terminal, or may be an apparatus capable of supporting the terminal to implement the function, such as a chip system. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a terminal is taken as an example of a terminal device, and the technical solution provided in the embodiment of the present application is described.

In the embodiment of the present application, the network device 100 or the terminal device 200 in fig. 1 may be implemented by one device, or may be one functional module in one device, which is not specifically limited in this embodiment of the present application. It is understood that the above functions may be network elements in a hardware device, or software functions running on dedicated hardware, or virtualization functions instantiated on a platform (e.g., a cloud platform), or a system-on-chip. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.

For example, the apparatus 200 in fig. 2 may be used to implement the functions of the terminal device provided in the embodiments of the present application. Fig. 2 is a schematic hardware structure diagram of an apparatus 200 according to an embodiment of the present disclosure. The apparatus 200 includes at least one processor 201 for implementing the functions of the terminal device provided in the embodiments of the present application. Also included in the apparatus 200 is a bus 202 and at least one communication interface 204. Memory 203 may also be included in the apparatus 200.

In the embodiment of the present application, the processor may be a Central Processing Unit (CPU), a general purpose processor, a Network Processor (NP), a Digital Signal Processor (DSP), a microprocessor, a microcontroller, a Programmable Logic Device (PLD), or any combination thereof. The processor may also be any other means having a processing function such as a circuit, device or software module.

Bus 202 may be used to transfer information between the above components.

A communication interface 204, configured to communicate with other devices or communication networks, such as an ethernet, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and so on. The communication interface 204 may be an interface, a circuit, a transceiver, or other device capable of implementing communication, and is not limited in this application. The communication interface 204 may be coupled with the processor 201. The coupling in the embodiments of the present application is an indirect coupling or a communication connection between devices, units or modules, and may be an electrical, mechanical or other form for information interaction between the devices, units or modules.

In the embodiments of the present application, the memory may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a Random Access Memory (RAM) or other types of dynamic storage devices that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory may be stand alone or may be coupled to the processor, such as via bus 202. The memory may also be integral to the processor.

The memory 203 is used for storing program instructions and can be controlled by the processor 201 to execute, so as to implement the resource scheduling method provided by the following embodiments of the present application. The processor 201 is configured to call and execute the instructions stored in the memory 203, so as to implement the resource scheduling method provided by the following embodiments of the present application.

Optionally, the computer-executable instructions in this embodiment may also be referred to as application program codes, which is not specifically limited in this embodiment.

Optionally, the memory 203 may be included in the processor 201.

In particular implementations, processor 201 may include one or more CPUs such as CPU0 and CPU1 in fig. 2, for example, as one embodiment.

In particular implementations, apparatus 200 may include multiple processors, such as processor 201 and processor 207 in FIG. 2, for example, as an example. Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores that process data (e.g., computer program instructions).

In one implementation, the apparatus 200 may further include an output device 205 and an input device 206, as an example. An output device 205 is coupled to the processor 201 and may display information in a variety of ways. For example, the output device 205 may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. The input device 206 is coupled to the processor 201 and may receive user input in a variety of ways. For example, the input device 206 may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.

The apparatus 200 may be a general-purpose device or a special-purpose device. In a specific implementation, the terminal device 200 may be a desktop, a laptop, a web server, a Personal Digital Assistant (PDA), a mobile phone, a tablet, a wireless terminal device, an embedded device, or a device with a similar structure as in fig. 2. The embodiment of the present application does not limit the type of the apparatus 200.

For example, the apparatus 300 in fig. 3 may be used to implement the functions of the network device provided in the embodiments of the present application. Fig. 3 is a schematic diagram illustrating a hardware structure of an apparatus 300 according to an embodiment of the present disclosure. The apparatus 300 includes at least one processor 301, configured to implement the functions of the terminal device provided in the embodiments of the present application. Also included in the apparatus 300 is a bus 302 and at least one communication interface 304. Memory 303 may also be included in the apparatus 300.

Bus 302 may be used to transfer information between the above-mentioned components.

A communication interface 304 for communicating with other devices or communication networks, such as ethernet, RAN, WLAN, etc. The communication interface 304 may be an interface, a circuit, a transceiver, or other device capable of implementing communication, and is not limited in this application. The communication interface 304 may be coupled to the processor 301.

The memory 303 is used for storing program instructions, and can be controlled by the processor 301 to execute, so as to implement the resource scheduling method provided by the following embodiments of the present application. For example, the processor 301 is configured to call and execute instructions stored in the memory 303, so as to implement the resource scheduling method provided in the following embodiments of the present application.

Optionally, the memory 303 may be included in the processor 301.

In particular implementations, processor 301 may include one or more CPUs such as CPU0 and CPU1 in fig. 3, for example, as an example.

In particular implementations, apparatus 300 may include, for one embodiment, a plurality of processors, such as processor 301 and processor 305 of FIG. 3. Each of these processors may be a single core processor or a multi-core processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

For clarity and conciseness of the following description of the various embodiments, a brief introduction to related concepts or technologies is first presented:

SR resources: one SR resource may include one or more of a time domain resource, a frequency domain resource, and a code domain resource (code resource). Wherein the time domain resource includes a time domain position and a symbol length. The time domain position comprises a starting symbol position or a terminating symbol position of the SR resource, and the symbol length is the number of symbols contained in the SR resource. The frequency domain resource comprises a frequency domain position and a frequency domain bandwidth size of the SR resource, the frequency domain position comprises a starting Resource Block (RB) position or a terminating Resource Block (RB) position of the SR resource, and the frequency domain bandwidth size is the number of consecutive resource blocks included in the SR resource. The code domain resource includes cyclic shift values of the reference signal sequence and/or orthogonal sequences (e.g., Orthogonal Cover Code (OCC) sequences) used by the reference signal sequence. The reference signals include a reference signal for carrying SR data and a demodulation reference signal (DMRS) for demodulating the SR data. For example, the SR data may be represented by a value a, for example, a ═ 1 indicates that the user equipment has transmitted an SR to request uplink resources of an uplink data channel (e.g., a Physical Uplink Shared Channel (PUSCH)). The reference signal carrying SR data may be the multiplication of the reference signal by a value a. The terminal device may transmit a reference signal carrying the SR data and a demodulation reference signal demodulating the SR data to the base station. Illustratively, the base station knows information of the demodulation reference signal, and the base station may perform channel estimation according to the received demodulation reference signal, demodulate the reference signal carrying SR data according to the channel estimation result, and determine whether the user equipment has sent the SR according to the demodulation result.

Cyclic shift value: the reference signal sequence may correspond to a cyclic shift value, and the reference signal sequence may be correspondingly cyclically shifted by the cyclic shift value. The cyclic shift value of a reference signal sequence, which can adopt a limited number of cyclic shift values, can be a preset value or a base station configured value. The possible values of the cyclic shift values that can be adopted by a reference signal sequence can be regarded as the supportable cyclic shift number of an SR resource, or as the selectable cyclic shift value number of an SR resource. For example, assuming that the length of the reference signal sequence is N, the cyclic shift can be expressed as x (N), where N is 0,1, 2. The number of possible values of cyclic shift values that can be used for a reference signal sequence is 5, for example, α (p), where p is 0,1,2, 3, 4. If the cyclic shift value adopted by the reference signal sequence is alpha (1), the reference signal sequenceThe columns may be correspondingly cyclically shifted by α (1), and the nth value x (n) of the reference signal sequence may be multiplied by the phase factor

If the cyclic shift value adopted by the reference signal sequence is α (3), the reference signal sequence can perform corresponding cyclic shift through α (3), and the nth value x (n) of the reference signal sequence can be multiplied by the phase factor

The network device may configure the cyclic shift value for the terminal device. For example, different cyclic shift values may be allocated to different terminal devices, or the same cyclic shift value may be allocated to different terminal devices, which is not limited in this application. When a plurality of terminal devices transmit the SRs on the same time-frequency resource and the terminal devices adopt the same reference signal sequence before cyclic shift, the SRs of different terminal devices can be orthogonal by adopting different cyclic shift values. The SR orthogonality indicates that the base station does not interfere with data of another user when demodulating data (e.g., SR) of one user. Thus, the base station can distinguish different terminal devices. Generally, in order to ensure the orthogonal performance, cyclic shift values corresponding to reference signal sequences adopted by one SR resource are limited, that is, the number of cyclic shifts supportable by one SR resource is limited. Illustratively, the number of cyclic shifts supportable by one SR resource may be 3, 6, 9, 12, etc. For example, when the supportable number of cyclic shifts of one SR resource is 12, the reference signal sequence of the SR resource may correspond to any one of 12 cyclic shift values, and thus, the reference signal sequence of the SR resource may distinguish 12 different terminal devices at most. Exemplarily, the time domain resources and the frequency domain resources of the SRs of the 12 terminal devices are the same, the orthogonal sequences adopted by the reference signal sequences in the code domain resources are the same, but the cyclic shift values of the reference signal sequences in the code domain resources are different.

OOC sequence: to further increase the number of terminal devices supported by SR resources, one mayTo employ OOC sequences. For SR, when multiple terminal devices correspond to the same reference signal sequence and the same cyclic shift value, different terminal devices can be guaranteed to be orthogonal by multiplying the reference signal sequence by different OCC sequences, respectively. The reference signal sequence may include a reference signal sequence for carrying SR data and a demodulation reference signal sequence for demodulating SR data. For example, assuming that the DMRS sequences of the terminal device 0 and the terminal device 1 are the same and both include two consecutive symbols, each symbol corresponds to a bandwidth of 1 RB, the number of subcarriers included in 1 RB is 12, that is, each symbol corresponds to 12 Resource Elements (REs), and each RE can carry one data element in the reference signal sequence, the length of the reference signal sequence may be 12, that is, the reference signal sequence includes 12 data elements. Terminal equipment 0 adopts DMRS sequence in symbol 0

Using DMRS sequences in symbol 1

Terminal device 1 uses DMRS sequence in symbol 0

Using DMRS sequences in symbol 1

Suppose that

Wherein,

n denotes the sequence number (sequence number may also be referred to as index or identity) of the data elements in the reference signal sequence. When the length-2 OCC sequence is used, for example, the length-2 OCC sequence may include {1, 1} and {1, -1}, and the DMRS sequence of terminal device 0 may be multiplied by the value in OCC sequence {1, 1}, that is, the DMRS sequence of symbol 0 is multiplied by 1, and the DMRS sequence of symbol 1 is multiplied by the DMRS sequence of symbol 0Multiplied by 1. The DMRS sequence for terminal device 1 may be multiplied by the values in {1, -1}, i.e., the DMRS sequence for symbol 0 is multiplied by 1 and the DMRS sequence for symbol 1 is multiplied by-1. At this time, terminal device 0 and terminal device 1 are orthogonal. I.e., the length of the OCC sequence is 2, 2 terminal devices can be supported (distinguished).

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the present application, the term "plurality" means two or more than two unless otherwise specified. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," and the like do not denote any order or importance, but rather the terms "first," "second," and the like do not denote any order or importance.

An embodiment of the present application provides a resource scheduling method, which is described by taking a network device as a base station as an example, and as shown in fig. 4, the method includes:

401. base station determining K for transmitting SR of terminal device₁A time slot; wherein, K₁Is an integer of 2 or more.

In one possible design, the base station may determine K based on a predetermined condition₁The numerical value of (c). The preset conditions comprise coverage requirements and/or access quantity of terminal equipment accessing the base station and the like.

In another possible design, K may be preconfigured₁The numerical value of (c).

402. For K₁One of the time slots, the base station determines K for transmitting the SR of the terminal device in the one time slot₂A SR resource; wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more.

In the embodiment of the present application, the transmission may be uplink transmission, for example, data is transmitted from a terminal device to a base station, or downlink transmission, for example, data is transmitted from a base station to a terminal device.

For K₁Any two slots of the plurality of slots, the number K of SR resources in the any two slots₂May be the same or different and are not limiting in this application. Illustratively, the base station determines K₁K for transmitting SR of terminal device in each time slot of a plurality of time slots₂A SR resource; wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more.

In one possible design, the base station may determine K according to a predetermined condition₂The numerical value of (c). The preset condition includes at least one of: coverage requirements and terminal equipment access volume requirements, etc. In another possible design, K may be preconfigured₂The numerical value of (c).

403. Optionally, the base station sends K to the terminal device₁And/or K₂The numerical value of (c).

For example, the base station may send K to the terminal device by signaling₁And K₂。

404. Optionally, the terminal device receives K sent by the base station₁And/or K₂。

In addition, K is₁And/or K₂The terminal device may be configured by the base station through a higher layer signaling (e.g., RRC signaling, broadcast message, system message, and Media Access Control (MAC) Control Element (CE)), or may be configured by the base station through a physical layer signaling, or may be a pre-configured fixed value (that is, step 403 and step 404 may not be executed), which is not limited in this embodiment of the present invention. The physical layer signaling may be signaling carried by Downlink Control Information (DCI) or a Physical Downlink Shared Channel (PDSCH). The DCI may be a signaling sent by the base station to the terminal device through a Physical Downlink Control Channel (PDCCH), that is, the DCI may be a signaling carried by the PDCCH.

405. Terminal device determining K for transmitting SR of terminal device₁And a time slot.

In one possible design, the terminal deviceThe starting time slot for transmitting the SR of the terminal device can be determined by the SR transmission period and the SR offset, and the order K is selected from the starting time slot₁One slot (including the start slot) transmits the SR. K of the order₁Any two adjacent time slots in a time slot may be continuous or discrete. For example, K₁The time slots may be continuous, discontinuous, or not completely continuous, and are not limited in this application.

The SR transmission period and the SR offset may be indicated by signaling, which is not limited herein. Taking NR as an example, assuming that an SR transmission cycle is 40 slots and an SR offset is 10, a start slot for transmitting an SR is the 9 th slot (starting from the 0 th slot) in every 40 slots. If K is₁10, and this K₁The slots may be consecutive, and the terminal device may transmit the SR at 9 th to 18 th slots in every 40 slots.

406. For K₁One of the time slots, the terminal device determines K of the SR of the terminal device in the time slot₂And SR resources.

Illustratively, the terminal device determines K₁K for transmitting SR of terminal device in each time slot of a plurality of time slots₂And SR resources. Wherein each SR resource may include a time domain resource, a frequency domain resource, and a code domain resource.

Wherein, K₁Each time slot of the time slots corresponds to K₂A terminal device can use K corresponding to each time slot as SR resource₂The SR is transmitted on one SR resource. That is, the terminal device may assign K within a time slot₂One SR resource repeated transmission K₁And thus the SR coverage can be improved.

Alternatively to K₁The ith time slot of the time slots, K in the ith time slot₂The SR resources are arranged consecutively in time slot, i.e. K₂The time domain symbols corresponding to the SR resources are consecutive. That is, for K₂An i-th repetition of SR resources, K within the i-th repetition₂The SR resources are arranged consecutively in time slot, i.e. K₂The time domain symbols corresponding to the SR resources are consecutive. Showing deviceIllustratively, assume K in the ith iteration₂The time domain symbol length of each SR resource in the SR resources is L, and the initial symbol position of the 0 th SR resource in the ith repetition is L₀Then the starting sign position of the jth SR resource in the ith repetition is l₀+ jL. Wherein i is 0 or more and K or less₁-an integer of 1; j is 0 or more and K or less₂-an integer of 1.

For example, as shown in FIG. 5, assume terminal A is at K₁There are 5 SR resources, K, in each of the time slots₂5. Each time slot comprises 14 symbols, the symbol length L of each SR resource is 2, and the starting symbol position L of the 0 th SR resource in each time slot₀If 4, the terminal device may be in order K₁One time slot transmits SR, K of the order₁Any two adjacent time slots in a time slot may be consecutive or discrete. Wherein, K₁A total of 10 symbols, starting from the 4 th symbol, per slot of the slots may be used for transmitting the SR.

407. For K₁One of the time slots, K of the terminal device in this time slot₂And transmitting the SR to the base station on the SR resource.

Exemplarily, if K is₁Each time slot comprises the same number of K₂SR resource, terminal equipment at K₁×K₂And transmitting the SR of the terminal equipment to the base station on the SR resource.

In one possible design, K of the terminal device₁×K₂The SR resources may correspond to a cyclic shift pattern (cyclic shift pattern) including K₁×K₂And the cyclic shift value corresponding to each SR resource in the SR resources.

Illustratively, the cyclic shift pattern may be represented as α_cs,pattern(iK₂+j)＝α_i,jI.e. alpha_cs,pattern＝{α_0,0,α_0,1,...,α_0,K2-1,α_1,0,α_1,1,...,α_1,K2-1,...,α_K1-1,K2-1}. Wherein alpha is_i,jFor the ith time slotCyclic shift value of jth SR resource within.

In one possible design, for K₁The ith time slot of the time slots, for K in the ith time slot₂And j is determined according to the cyclic shift value of the terminal equipment SR transmitted on the j-th SR resource.

In one possible design, the terminal device may receive the cyclic shift parameter of the terminal device from the base station, i.e., the cyclic shift parameter may be flexibly configured by higher layer signaling or physical layer signaling. Then, the terminal device may determine a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource according to i, j and the cyclic shift parameter. In the method, the base station can configure the optimal cyclic shift pattern for each terminal device according to the connection number of the terminal devices required to be supported, so that the collision probability when a plurality of terminal devices simultaneously transmit the SR is reduced, and the performance of the network device for detecting the SR can be improved.

Wherein, when the base station indicates the cyclic shift parameter for the terminal device, the number of bits of the information field for indicating the cyclic shift parameter may be according to K₁、K₂And the number of cyclic shifts supportable by one SR resource. For example, assume K₁And K₂Has a maximum value of

And

the number of cyclic shifts available in one SR resource is N_csThen, then

The number of bits of the cyclic shift parameter may be

In one possible design, for K₁The ith time slot of the time slots, for K in the ith time slot₂The j-th SR resource in the SR resources can expand the cyclic shift parameter into a polynomial according to i, j and the supportable cyclic shift number of the SR resource. Wherein, the cyclic shift value of the jth SR resource corresponding to the ith time slot is determined according to the coefficient (variable) of the polynomial.

Illustratively, the cyclic shift value α of the jth SR resource in the ith slot_i,jCan be based on the variable m_i,jAnd (4) determining. Wherein m is_i,jSatisfies formula (1):

wherein, I_csIs a cyclic shift parameter (which may also be referred to as a value indicated by the cyclic shift parameter), N_csIs the number of cyclic shifts supportable in one SR resource.

It is understood that equation (1) can be considered as the cyclic shift parameter I_csWith N_csIs expanded into K for the system₁×K₂A numerical value. For example, N_csWhen the value is 12, the cyclic shift parameter is expanded into 12 systems. For example, assume K₁＝2，K₂＝4，I_cs7777, spreading 7777 into 12-system, i.e. 7777 is 1+0 × 12+6 × 12²+4×12³+0×12⁴+0×12⁵+0×12⁶+0×12⁷The corresponding coefficients obtained after the expansion are arranged in 10640000, i.e. m, from low order to high order_0,0＝1,m_0,1＝0,m_0,2＝6,m_0,3＝4,m_1,0＝0,m_1,1＝0,m_1,2＝0,m _1,30. That is, m_i,jThe corresponding pattern of values of (1), (0, 6), (4), (0, 0), (0).

Another implementation of formula (1) is:

wherein the modulo operation can be omitted.

Alternatively, α_i,j＝m_i,j. Or, take LTE system as an example, α_i,jAnd m_i,jCan be expressed by formula (3) or formula (4):

wherein,

represents the number of subcarriers (subcarriers) contained in one resource block; m is₀A cyclic shift initial value (alternatively referred to as a cyclic shift offset) indicating that the base station configures the terminal device; n is_csIs a pseudo random number;

a slot number (which may also be referred to as a slot index or an identifier) of a slot for transmitting the SR within one Radio Frame (Radio Frame); l represents the sequence number of any one of the time domain symbols of the SR in the time slot for transmitting the SR; l' denotes a start symbol position of a time domain symbol of the SR within a slot in which the SR is transmitted. m is a unit of_csThe value of (1) may be 0, which indicates that the SR of the terminal device is not transmitted together with an Acknowledgement (ACK) of a hybrid automatic repeat request (HARQ).

The terminal equipment is instructed to determine the cyclic shift pattern through the cyclic shift parameter, the number of required bits is less, and the signaling overhead can be reduced.

In one possible design, for K₁The ith time slot of the time slots, for K in the ith time slot₂J-th one of SR resourcesAnd the cyclic shift value of the SR of the terminal equipment transmitted on the jth SR resource is determined according to the i, the j and the identification of the terminal equipment. The identifier of the terminal device may include a cell radio network temporary identifier (C-RNTI), a temporary (temporary) C-RNTI or other identifiers of the terminal device.

For example, assume that the identity of the terminal device is represented as

Cyclic shift value alpha of jth SR resource in ith time slot_ijCan be composed of_i,jDetermination of m_i,jSatisfies formula (5) and formula (6):

wherein N is_scaleIs an integer of 1 or more, N_scaleIs a scale factor, N_scaleThe value of (b) may be pre-configured or may be indicated by the base station to the terminal device by higher layer signaling. N is a radical of_csIs the number of cyclic shifts supportable in one SR resource.

Another implementation of formula (5) may be represented by formula (7), i.e., m obtained according to formula (5) and formula (7)_i,jThe values are the same:

alternatively, α_i,j＝m_i,j. Or, a_i,jAnd m_i,jThe relationship (c) can be expressed by referring to the formula (3) or the formula (4).

Thus, the corresponding cyclic shift pattern can be determined for the terminal device by i, j and the identity of the terminal device. Further, if two terminal equipmentsSuch as 1000 for one and 1001 for the other, the cyclic shift patterns generated directly using the identities of the terminal devices may also be relatively close, so that it is difficult for the base station to distinguish between different terminal devices upon detection. In the method provided by the embodiment of the application, the identifier of the terminal device can be multiplied by N_scaleThe cyclic shift patterns can be distributed more uniformly and not too close so that the base station can better distinguish different terminal devices.

In one possible design, for K₁The ith time slot of the time slots, for K in the ith time slot₂And a j-th SR resource in the SR resources, wherein the cyclic shift value of the SR of the terminal equipment transmitted on the j-th SR resource is determined according to the i, the j and the pseudo random sequence, or the cyclic shift value of the SR of the terminal equipment transmitted on the j-th SR resource is determined according to the i, the j and the pseudo random sequence. The initialization value of the pseudo-random sequence is determined according to the identification of the terminal equipment, and the initialization value of the pseudo-random sequence can be used for determining the value of the pseudo-random sequence; or the value of the pseudo random sequence is determined according to the cell identification of the cell in which the terminal equipment is positioned and the identification of the terminal equipment. The sequence number of the pseudo-random sequence of data fetches can be determined from i and j. It will be appreciated that the pseudo-random sequence is a sequence of sequences, the initial value of the random sequence can be used to determine the starting position of the data to be fetched from the pseudo-random sequence, and the sequence number of the data to be fetched by the pseudo-random sequence can be used to determine the offset relative to the starting position of the data to be fetched, so that the data value actually to be fetched from the pseudo-random sequence can be determined. The pseudo-random sequence may be a pseudo-random sequence in an LTE protocol, or may also be other PN sequences, Gold sequences, and the like, which is not limited in the present application.

Optionally, an initialization value of a pseudo-random sequence

Is the identification of the terminal device. Cyclic shift value alpha of jth SR resource in ith time slot_i,jMay be according to m_i,jIs determined of_i,jSatisfies formula (8):

wherein, c (8 XK)₂X i +8 x j + m) indicates an index of 8 x K in the pseudo-random sequence₂Data of x i +8 x j + m. For example, c (5) represents the 5 th data in the pseudo random sequence.

Optionally, the value of the pseudo-random sequence is determined according to a cell identifier of a cell in which the terminal device is located and an identifier of the terminal device, where the initialization value of the pseudo-random sequence is

A cyclic shift value alpha of the jth SR resource in the ith time slot is the cell identification of the cell in which the terminal equipment is positioned_i,jMay be according to m_i,jIs determined of_i,jThe formula (9) is satisfied, wherein,

identification for terminal device:

wherein,

indicating an index of a pseudorandom sequence of

The data of (2).

It will be appreciated that the ith time slot is K₂An ith repetition of the SR resource, and a symbol sequence number of a jth SR resource within the ith repetition is determined. Wherein the symbol sequence number is the symbol index or identification. Therefore, determining the cyclic shift pattern of the terminal device according to i and j can be equivalent to determining the cyclic shift pattern according to the slot index corresponding to the ith repetition and the symbol index where the jth SR resource is located in the ith repetition. Assume the starting sign position of the 0 th SR resource in the ith repetition is l₀If the number of symbols included in each SR resource is L, the starting symbol position of the jth SR resource in the ith repetition is L₀+ jL. The corresponding value of j can be determined by the symbol index. For example, when L is 1, it is easy to know that j is L_idx-l₀Wherein l is_idxIs a symbol index of SR resource,/_idxInitial value of l₀。

Illustratively, the initialization value of the pseudo-random sequence

For the cyclic shift value of the jth SR resource in the ith repetition, the sequence number of the data of the pseudo random sequence for determining the cyclic shift value is determined by the time slot sequence number and the symbol sequence number of the SR resource. Taking the cyclic shift value determination in NR as an example, α_lSatisfies formula (10):

wherein,

wherein alpha is_lThe cyclic shift value of the corresponding symbol index l is repeated for the ith time. The definitions of other parameters may be described above, and are not described herein again.

408. Base station at K₁×K₂And receiving the SR of the terminal equipment on the SR resource.

Corresponding to terminal equipment₁A time slot for K₁K corresponding to each time slot in each time slot₂One SR resource, the base station can be at the K₁Each SR resource of each of the slots detects an SR transmitted by the terminal device. Exemplarily, for K₁Each of the time slots, detecting K within the time slot₂The cyclic shift value corresponding to each SR resource in the SR resources is used for determining the K sent by the terminal equipment₁×K₂The cyclic shift pattern corresponding to each SR resource determines (the identity of) the terminal device that sent the SR according to the detection result.

Exemplarily, K₁The time slot serial number of each time slot corresponds to the value of i one by one; k₁K corresponding to each time slot in each time slot₂The symbol sequence number of each SR resource in the SR resources is in one-to-one correspondence with the value of j. When in detection, the base station can determine corresponding values of i and j according to the time slot serial number and the symbol serial number of the SR, thereby determining that the detected signal contains K₁K₂The cyclic shift pattern of the cyclic shift value can further detect the terminal device sending the SR.

Illustratively, assume that terminal device A corresponds to K₁And K₂Are all 4, i.e. terminal device a may repeatedly transmit 16 SR times on 16 SR resources when transmitting SR. For K₁The ith time slot of the time slots, for K in the ith time slot₂When i is 0 and j is 0,1,2, 3, the j-th SR resource in the SR resources is

alpha

_i,j0,1, 3, 4; when i is 1, j is 0,1,2, 3,

α

_i,j2, 1, 5, 6; when i is 2, j is 0,1,2, 3,

α

_i,j4, 2, 1, 3; when i is 3, j is 0,1,2, 3, α_i,j-8, 10, 9, 6; namely, the cyclic shift pattern corresponding to the 16 SR resources is: {0,1,3,4,2,1,5,6,4,2,1,3,8, 10,9,6}. Base station detection K₁K corresponding to each time slot in each time slot₂And an SR resource for determining whether the cyclic shift pattern exists. For example, for the 0 th SR resource in the 0 th timeslot, the base station may perform channel estimation by using the demodulation reference signal to obtain a channel estimation value of the reference signal used for carrying the SR data of the SR resource, and then demodulate the received reference signal used for carrying the SR data to obtain a demodulated reference signal used for carrying the SR data. The base station can also demodulate a reference signal (with a corresponding cyclic shift value of 0) for carrying the SR data) And carrying out correlation operation with a reference signal which can be sent by the user equipment and is used for carrying the SR data. When the result of the correlation operation exceeds a preset threshold, it may be determined that the reference sequence with a cyclic shift of 0 is transmitted by the 0 th SR resource in the 0 th slot, that is, the 0 th SR resource in the 0 th slot determines that the SR is transmitted. Similar processing is adopted by other SR resources, the base station can determine whether each cyclic shift value in the cyclic shift pattern exists, so as to judge whether the corresponding user equipment sends the SR.

When the base station determines that the cyclic shift pattern {0, 1, 3, 4, 2, 1, 5, 6, 4, 2, 1, 3, 8, 10, 9, 6} exists, the base station determines that the terminal device a has transmitted the SR, so that the base station can transmit an uplink scheduling Grant (UL Grant) to the terminal device a. Wherein the base station may store a correspondence between the terminal device and the cyclic shift pattern, thereby determining (an identity of) the terminal device according to the detected cyclic shift pattern; alternatively, the base station may determine (the identity of) the terminal device according to i, j and the detected cyclic shift pattern, which is not limited in this application.

In the prior art, a base station needs to configure a specific SR resource for each terminal device, which causes very high overhead of the SR resource and cannot well support the requirement of wide coverage. In the embodiment of the application, the terminal equipment can be at K₁×K₂Transmitting SR of terminal equipment to base station on SR resource, namely K in one time slot₂One SR resource repeated transmission K₁Second, the coverage of the SR of the terminal device can be improved.

Further, K of the terminal device₁×K₂The SR resource may correspond to a cyclic shift pattern comprising K₁×K₂And a cyclic shift value corresponding to each SR resource in the SR resources. For example, assume K₁And K₂Is at a maximum value of

And

supportable cycles in one SR resourceNumber of ring shifts N_cs(i.e., one SR resource may correspond to N_csA different cyclic shift value), then

The maximum number of supported cyclic shift patterns of the SR resources is N_csIs an exponential multiple of

Therefore, the connection number of the super-large terminal equipment can be supported.

Another embodiment of the present application provides a resource scheduling method, which is described by taking a network device as a base station as an example, and as shown in fig. 6, the method includes:

601. base station determining K for transmitting SR of terminal device₁And a time slot.

The specific process may refer to step 401 in the embodiment shown in fig. 4.

602. For K₁One time slot of the time slots, the base station determines K for transmitting the SR of the terminal equipment in the time slot₂A number of SR resources; wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more.

The specific process may refer to step 402 of the embodiment shown in fig. 4.

603. Base station determining K₁×K₂Number of repetitions of SR resource K₃Wherein, K is₃Is an integer of 2 or more.

In one possible design, the base station may determine K based on a predetermined condition₃The numerical value of (c). The preset condition includes at least one of: coverage requirements and terminal equipment access volume requirements, etc.

In another possible design, K may be determined according to a pre-configuration₃The numerical value of (c).

604. Optionally, the base station sends K to the terminal device₁、K₂And K₃。

The base station can send K to the terminal equipment through signaling₁、K₂And K₃。

605. Optionally, the terminal device receives K sent by the base station₁、K₂And K₃。

Wherein, K₁、K₂Or K₃The value may be configured by a higher layer signaling or a physical layer signaling, or may be a preconfigured value, which is not limited in the embodiment of the present application. For example, K₁、K₂And K₃Are configured by higher layer signaling; or, K₁、K₂And K₃Are all pre-configured values (i.e., step 604 and step 605 may not be performed); or, K₁And K₂Configurable by higher layer signaling, K₃May be a pre-configured value; or, K₁And K₃Configurable by higher layer signaling, K₂May be a pre-configured value; or, K₂And K₃Configurable by higher layer signaling, K₁May be a pre-configured value; the present application is not limited.

606. Terminal device determining K for transmitting SR of terminal device₁And a time slot.

The specific process may refer to step 405 of the embodiment shown in fig. 4.

607. For K₁One of the time slots, the terminal device determines K of the SR of the terminal device in the time slot₂And SR resources.

The specific process may refer to step 406 of the embodiment shown in fig. 4.

608. Terminal device determination K₁×K₂Number of repetitions of SR resource K₃。

609. For K₃One of the minor repeats, for K in one repeat₁One of the time slots, K of the terminal device in this time slot₂And transmitting the SR to the base station on the SR resource.

Exemplarily, if K₃Each of the sub-repetitions includes the same number of K₁×K₂SR resource, terminal equipment at K₁×K₂×K₃And transmitting the SR of the terminal equipment to the base station on the SR resource.

I.e. the terminal device may be at K₁×K₃Each slot transmits an SR of the terminal device. Wherein, K₁×K₃Each of the time slots corresponds to K₂And SR resources. For K₁×K₃Each time slot of a time slot, from l₀Initiation of K₂xL symbols are uplink symbols, L₀Denotes the starting symbol position of the 0 th SR resource in each slot, and L denotes the number of symbols included in each SR resource. In other words, the terminal device may be at K₁K in each of a plurality of time slots₂Transmitting SR on one SR resource and converting K₁K within one time slot₁×K₂One SR resource repetition K₃Next, the process is repeated. For K₁The ith time slot of the time slots, for K in the ith time slot₂The method for determining the cyclic shift value of the jth SR resource of the SR resources, the SR of the terminal device transmitted on the jth SR resource, may refer to the related description in step 407.

It can be understood that K₃K contained in any two of the minor repeats₁×K₂The SR resource may be the same, namely K₃K contained in any two of the minor repeats₁×K₂The frequency domain resources and the code domain resources of the SR resources are the same. For example, K of the a-th repetition₁×K₂One SR resource and the b-th repeated K₁×K₂The SR resources are the same, where a ≠ b a, b ≠ 0,1,2₃-1. Assume K, as shown in FIG. 7₁＝2，K₂＝4，K ₃4; the symbol length of each SR resource is L ═ 2, each slot includes 14 symbols (one slot symbol sequence number starts from 0), and the starting symbol position of the 0 th SR resource in each slot is L₀6. The a-th repetition comprises 8 SR resources of 2 time slots, and the cyclic shift pattern comprises a cyclic shift value of K₁×K ₂8. Will K₁K for 2 slots₃The number of time slots of one SR transmission is K₁×K₃And (4) respectively.

610. Base station at K₁×K₂×K₃Receiving an SR of a terminal device on an SR resource;K₁×K₂×K₃the SR resource is K₁×K₂K of SR resource₃And (5) repeating the steps.

I.e. the base station may be at K₁×K₃Repeatedly receiving an uplink resource scheduling request sent by terminal equipment by each time slot; wherein, K₁×K₃Each of the time slots corresponds to K₂And one SR resource.

In the prior art, a base station needs to configure a specific SR resource for each terminal device, which causes very high overhead of the SR resource and cannot well support the requirement of wide coverage. In the embodiment of the application, the terminal equipment can be at K₁×K₂×K₃Sending SR of terminal equipment to base station on SR resource, namely K₁K within one time slot₁×K₂One SR resource repeated transmission K₃Second, the coverage of the SR of the terminal device can be improved. And, due to K₁×K₂K of SR resource₃K contained in any two of the minor repeats₁×K₂The SR resources are consistent, so the receiver has low detection complexity and good detection performance, and the high-level signaling indication overhead is small.

Wherein, K₃K contained in any one of the minor repeats₁×K₂The SR resources may correspond to a cyclic shift pattern, each cyclic shift pattern comprising K₁×K₂And the cyclic shift value corresponding to each SR resource in the SR resources. And, K₃Any two of the repetitions are identical to the corresponding cyclic shift pattern. For example, assume K₁And K₂Has a maximum value of

And

the supportable cyclic shift number in one SR resource is N_cs(i.e., one SR resource may correspond to N_csA different cyclic shift value), then

Thereby supporting the number of the super-large connecting terminal devices.

In the embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of the terminal device, the network device, and the interaction between the terminal device and the network device. In order to implement the functions in the method provided by the embodiments of the present application, the terminal device and the network device may include a hardware structure and/or a software module, and the functions are implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether any of the above-described functions is implemented as a hardware structure, a software module, or a hardware structure plus a software module depends upon the particular application and design constraints imposed on the technical solution.

In the case of dividing each functional module according to each function, fig. 8 shows a schematic diagram of a possible structure of the apparatus 8 according to the foregoing embodiment, where the apparatus may be a terminal device, and the terminal device includes: a determination unit 801 and a transmission unit 802. In this embodiment, the determining unit 801 may be configured to determine K for transmitting the scheduling request SR of the terminal device₁A time slot; wherein, K₁Is an integer of 2 or more; and also for determining K₁K for transmitting SR of terminal device in each time slot of a plurality of time slots₂A number of SR resources; wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more. A transmitting unit 802 for transmitting at K₁×K₂And transmitting the SR of the terminal equipment to the base station on the SR resource. In the method embodiments shown in fig. 4 and fig. 6, the determining unit 801 is configured to support the terminal device to perform the processes 405 and 406 in fig. 4, and the process 606 and 608 in fig. 6. The sending unit 802 is configured to support the terminal device to perform the process 407 in fig. 4 and the process 609 in fig. 6. Optionally, the terminal device may further include a receiving unit 803 for supporting the terminalThe device performs process 404 in fig. 4, process 605 in fig. 6. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the case of dividing each functional module by corresponding functions, fig. 9 shows a schematic structural diagram of a possible apparatus 9 involved in the foregoing embodiment, where the apparatus may be a network device, and the network device includes: a determining unit 901 and a receiving unit 902. In this embodiment, the determining unit 901 may be configured to determine K used for transmitting the scheduling request SR of the terminal device₁A time slot; wherein, K₁Is an integer of 2 or more; also for determining the K₁K for transmitting SR of terminal device in each time slot of multiple time slots₂A number of SR resources; wherein one of the SR resources corresponds to one or more symbols, K₂Is an integer of 2 or more. A receiving unit 902 for receiving the K₁×K₂And receiving the SR of the terminal equipment on the SR resource. A receiving unit 902 for receiving at K₁×K₂And receiving the SR of the terminal equipment on the SR resource. In the method embodiments shown in fig. 4 and fig. 6, the determining unit 901 is configured to support the network device to perform the processes 401 and 402 in fig. 4, and the process 601 and 603 in fig. 6. Receiving unit 902 is configured to support a network device to perform process 408 in fig. 4, process 610 in fig. 6. Optionally, the network device may further include a sending unit 903, configured to support the network device to perform the process 403 in fig. 4 and the process 604 in fig. 6. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

The division of the modules in the embodiments of the present application is schematic, and only one logical function division is provided, and in actual implementation, there may be another division manner, and in addition, each functional module in each embodiment of the present application may be integrated in one processor, may also exist alone physically, or may also be integrated in one module by two or more modules. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. For example, in the embodiment of the present application, the receiving unit and the transmitting unit may be integrated into the transceiving unit.

The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may 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 loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, special purpose computer, computer network, network appliance, user equipment, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., Digital Video Disk (DVD)), or a semiconductor medium (e.g., Solid State Drive (SSD)), among others.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A method for scheduling resources, comprising:

determining K for transmitting scheduling requests SR of terminal equipment₁A time slot of, wherein K₁Is an integer of 2 or more;

determining the K₁K for transmitting SR of the terminal device in each of the time slots₂A plurality of SR resources, wherein one SR resource corresponds to one or more symbols, K₂Is an integer of 2 or more;

at said K₁×K₂And transmitting the SR of the terminal equipment to network equipment on the SR resource.

2. The method according to claim 1,

for said K₁An ith time slot of the time slots, for K in the ith time slot₂A jth SR resource in the SR resources, a cyclic shift value of the SR of the terminal device transmitted on the jth SR resource being determined according to i and j;

wherein i is 0 or more and K or less₁An integer of-1, j is 0 or more and K or less₂-an integer of 1.

3. The method of claim 2, wherein the cyclic shift value of the terminal device SR transmitted on the jth SR resource is determined according to i and j, and comprises:

the cyclic shift value of the terminal equipment SR transmitted on the jth SR resource is determined according to i, j and the terminal equipment identifier; or

Receiving a cyclic shift parameter from a network device, wherein a cyclic shift value of the terminal device SR transmitted on the jth SR resource is determined according to i, j and the cyclic shift parameter.

4. The resource scheduling method according to claim 3,

information for indicating the cyclic shift parameterThe number of bits of the field is according to K₁、K₂And a number of cyclic shifts supportable by one of the SR resources.

5. The method of claim 2, wherein the cyclic shift value of the terminal device SR transmitted on the jth SR resource is determined according to i and j, and comprises:

the cyclic shift value of the terminal equipment SR transmitted on the jth SR resource is determined according to i, j and a pseudo-random sequence;

the initialization value of the pseudo-random sequence is determined according to the identifier of the terminal device, or the value of the pseudo-random sequence is determined according to the cell identifier of the cell where the terminal device is located and the identifier of the terminal device.

6. The method according to any of claims 1-5, wherein K is the number of bits in the resource block₁×K₂The sending, to a network device, the SR of the terminal device on the SR resource includes:

at K₁×K₂×K₃Sending the SR of the terminal device to the network device on the SR resource, K₁×K₂×K₃One SR resource is the K₁×K₂K of SR resource₃Repeating for the second time; wherein, K₃Is an integer of 2 or more.

7. A method for scheduling resources, comprising:

determining K for transmitting scheduling requests SR of a terminal device₁A time slot, wherein K₁Is an integer of 2 or more;

determining the K₁K for transmitting SR of the terminal device in each of the time slots₂A plurality of SR resources, wherein one SR resource corresponds to one or more symbols, K₂Is an integer greater than or equal to 2;

at said K₁×K₂Receiving the data on one SR resourceSR of the terminal device.

8. The resource scheduling method according to claim 7,

for said K₁An ith time slot of the time slots, for K in the ith time slot₂A j-th SR resource in the SR resources, wherein the cyclic shift value of the SR of the terminal equipment transmitted on the j-th SR resource is determined according to i and j;

9. The method of claim 8, wherein the cyclic shift value of the terminal device SR transmitted on the jth SR resource is determined according to i and j, and comprises:

And sending a cyclic shift parameter to the terminal equipment, wherein the cyclic shift value of the SR of the terminal equipment transmitted on the jth SR resource is determined according to i, j and the cyclic shift parameter.

10. The method for scheduling resources according to claim 9,

the number of bits used to indicate the information field of the cyclic shift parameter is according to K₁、K₂And a number of cyclic shifts supportable by one of the SR resources.

11. The method of claim 8, wherein the cyclic shift value of the terminal device SR transmitted on the jth SR resource is determined according to i and j, and comprises:

the cyclic shift value of the SR of the terminal equipment transmitted on the jth SR resource is determined according to i, j and a pseudo-random sequence;

the initialization value of the pseudo-random sequence is determined according to the identifier of the terminal device, or the value of the pseudo-random sequence is determined according to the cell identifier of the cell in which the terminal device is located and the identifier of the terminal device.

12. The method according to any of claims 7-11, wherein at said K, K is₁×K₂Receiving the SR of the terminal device on the SR resource, including:

at K₁×K₂×K₃Receiving the SR of the terminal equipment on the SR resource, the K₁×K₂×K₃One SR resource is the K₁×K₂K of SR resource₃Repeating for the second time; wherein, K₃Is an integer of 2 or more.

13. An apparatus, characterized in that it is configured to implement the resource scheduling method according to any one of claims 1 to 6.

14. An apparatus comprising a processor and a memory, the memory having stored therein instructions that, when invoked and executed, cause the apparatus to perform the resource scheduling method of any one of claims 1 to 6.

15. An apparatus, characterized in that it is configured to implement the resource scheduling method according to any one of claims 7 to 12.

16. An apparatus comprising a processor and a memory, the memory having stored therein instructions that, when invoked and executed, cause the apparatus to perform the resource scheduling method of any one of claims 7 to 12.

17. A communication system comprising the apparatus of claim 13 or 14 and the apparatus of claim 15 or 16.

18. A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the resource scheduling method of any one of claims 1 to 12.