WO2018166229A1

WO2018166229A1 - Resource indication method, and related device and system

Info

Publication number: WO2018166229A1
Application number: PCT/CN2017/111090
Authority: WO
Inventors: 王建中
Original assignee: 深圳市金立通信设备有限公司
Priority date: 2017-03-15
Filing date: 2017-11-15
Publication date: 2018-09-20
Also published as: CN108633002A

Abstract

Disclosed in embodiments of the present invention are a resource indication method, and a related device and system. The method comprises: a user equipment receives a master information block (MIB) broadcast by a network device, the MIB comprising first indication information for indicating time-frequency resources occupied by a public control resource set; the user equipment decodes the public control resource set over the time-frequency resources indicated by the first indication information to obtain second indication information, the second indication information being used for indicating time-frequency resources occupied by a user-level control resource set; the user equipment receives service data over time-frequency resources other than the public control resource set and the time-frequency resources occupied by the user-level control resource set in time-frequency resources allocated to the user equipment. By using the embodiments of the present invention, dynamic multiplexing of time-frequency resources can be implemented.

Description

Resource indication method, related device and system

This application claims the priority of the Chinese Patent Application filed on March 15, 2017, the Chinese Patent Office, the application number is 201710153350.5, and the invention is entitled "a resource indication method, related equipment and system". The manner of introduction is incorporated into this text.

Technical field

The present invention relates to the field of computer technologies, and in particular, to a resource indication method, related device, and system.

Background technique

The fifth-generation mobile communication technology (5th-Generation, 5G) is a multi-technology convergence communication that meets the needs of a wide range of data and connectivity services through technology changes and innovations. In the #71 meeting of the radio access network (RAN), the 3rd Generation Partnership Project (3GPP) established a research project (SI) on 5G new air interface research, mainly 3GPP From the three scenarios of enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC) and massive machine type communications (mMTC) Research on new air interface technology.

In the previous conferences, 3GPP has identified the main research frameworks for new frame structures, channel coding, new multiple access and multiple antennas. The current discussion focuses on the specific implementation of each channel. How to dynamically multiplex resources for the downlink control channel and the downlink data channel is a technical problem that is urgently needed to be solved by those skilled in the art.

Summary of the invention

The embodiment of the invention discloses a resource indication method, a related device and a system, which can dynamically multiplex time-frequency resources.

In a first aspect, an embodiment of the present invention provides a resource indication method, where the method includes: Receiving, by the device, a primary information block (MIB) broadcasted by the network device, where the MIB includes first indication information for indicating a time-frequency resource occupied by the common control resource set; the user equipment decoding the time-frequency resource indicated by the first indication information The second control information is obtained by the public control resource set, where the second indication information is used to indicate the time-frequency resource occupied by the user-level control resource set; and the user equipment includes the public control resource set and the user in the time-frequency resource allocated to the user equipment. The time-frequency resource other than the time-frequency resource occupied by the level control resource set receives the service data.

By performing the foregoing steps, the network device indicates, by using the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and determines the user-level control resource according to the common control resource set. Time-frequency resources occupied by the set, and subsequently, the time-frequency resources of the time-frequency resources allocated by the user equipment, except for the time-frequency resources occupied by the common control resource set and the time-frequency resources occupied by the user-level control resource set The resource is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is also different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of the time-frequency resource is implemented.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the method further includes: the user equipment decoding the user-level control resource set to obtain downlink control information on the time-frequency resource indicated by the second indication information DCI; the DCI includes resource allocation information for indicating a physical resource block PRB occupied by the physical downlink shared channel PDSCH of the user equipment; the user equipment includes the common control resource set and the user level in the time-frequency resource allocated to the user equipment The time-frequency resource receiving service data other than the time-frequency resource occupied by the control resource set includes: the user equipment except the time-frequency resource occupied by the common control resource set and the user-level control resource set on the PRB indicated by the DCI The time-frequency resource receives the PDSCH.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, the second indication information includes a resource indication value RIV field and a symbol field; the RIV field The frequency domain resource is used to indicate the user level control resource set, and the symbol field is used to indicate the time domain resource occupied by the user level control resource set.

With reference to the first aspect, or the first possible implementation manner of the first aspect, or the second possible implementation manner of the first aspect, in the third possible implementation manner of the first aspect, the common control resource set Located on the middle band of the first symbol of the downlink subframe.

Combining the first aspect, or the first possible implementation of the first aspect, or the first aspect In a second possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the first indication information includes an index value of the common control resource set Before the user equipment decodes the common control resource set to obtain the second indication information on the time-frequency resource indicated by the first indication information, the method further includes: determining, by the user equipment, the public control resource set according to the index value Frequency resources.

In conjunction with the second possible implementation of the first aspect, in a fifth possible implementation of the first aspect, the method further includes:

The user equipment calculates a value of the RIV field by using a preset parsing formula to obtain a starting position and a length of the frequency domain resource, where the preset parsing formula is as follows:

b=RIV%N _RB

If(a+b>N _RB )

L=N _RB +2-a;RB _Start =N _RB -1-b

Else

L=a;RB _Start =b

In the preset analysis formula, RIV is a value in the RIV field, N _RB is a system bandwidth, a and b are intermediate quantities, L is a length of the obtained frequency domain resource, and RB _Start is a obtained location. The frequency domain start position of the frequency domain resource.

In a second aspect, the embodiment of the present invention provides a resource indication method, where the method includes: broadcasting a primary information block MIB, where the MIB includes first indication information for indicating a time-frequency resource occupied by a common control resource set, where The common control resource set is used to carry the second indication information indicating the time-frequency resource occupied by the user-level control resource set; the second indication information is sent on the time-frequency resource indicated by the first indication information; The public control resource set and the time-frequency resource other than the time-frequency resource occupied by the user-level control resource set send service data.

By performing the foregoing operations, the network device indicates, by using the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and determines the user-level control resource according to the common control resource set. Time-frequency resources occupied by the set, and subsequent, the time-frequency resources and user-level control resources occupied by the user equipment in addition to the common control resource set A time-frequency resource other than the time-frequency resource occupied by the source set is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is different; instead of pre-configuring the fixed PDCCH and the PDSCH, the time-frequency resource is implemented. Dynamic multiplexing.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the service data of the time-frequency resource except the time-frequency resource occupied by the common control resource set and the user-level control resource set is sent on the current subframe. The method includes: transmitting downlink control information DCI of the user equipment in the user-level control resource set on the time-frequency resource indicated by the second indication information; the DCI includes a physical resource block that is used to indicate the physical downlink shared channel PDSCH of the user equipment. Resource allocation information of the PRB; the PDSCH is transmitted on the PRB indicated by the DCI except the time-frequency resource of the common control resource set and the time-frequency resource occupied by the user-level control resource set.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the second indication information includes a resource indication value RIV field and a symbol field, and the RIV field The frequency domain resource is used to indicate the user level control resource set, and the symbol field is used to indicate the time domain resource occupied by the user level control resource set.

With reference to the second aspect, or the first possible implementation manner of the second aspect, or the second possible implementation manner of the second aspect, in the third possible implementation manner of the second aspect, the common control resource set Located on the middle band of the first symbol of the downlink subframe.

With reference to the second aspect, or the first possible implementation of the second aspect, or the second possible implementation of the second aspect, or the third possible implementation of the second aspect, in the second aspect In the four possible implementation manners, the first indication information includes an index value of the common control resource set, where the index value is used by the user equipment to determine the common control resource set.

With reference to the second possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the method further includes:

The network device performs calculation according to a preset formula to obtain a value RIV in the RIV field, and the preset formula is as follows:

RIV=N _RB (L-1)+RB _Start

Else

RIV=N _RB (N _RB -L+1)+(N _RB -1-RB _Start )

In the preset formula, L is the length of the frequency domain resource, RB _Start is the frequency domain start position of the frequency domain resource, N _RB is the system bandwidth, and a and b are intermediate quantities.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a first receiving unit, an obtaining unit, and a second receiving unit, where the first receiving unit is configured to receive a main information block MIB broadcasted by the network device, where The MIB includes first indication information for indicating a time-frequency resource occupied by the common control resource set, and an acquiring unit, configured to decode the common control resource set to obtain a second indication on the time-frequency resource indicated by the first indication information. Information, the second indication information is used to indicate a time-frequency resource occupied by the user-level control resource set, and the second receiving unit is configured to: in addition to the public control resource set and the user, the time-frequency resource allocated to itself The time-frequency resource other than the time-frequency resource occupied by the level control resource set receives the service data.

By running the foregoing unit, the network device indicates, by using the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and determines the user-level control resource according to the common control resource set. Time-frequency resources occupied by the set, and subsequently, the time-frequency resources of the time-frequency resources allocated by the user equipment, except for the time-frequency resources occupied by the common control resource set and the time-frequency resources occupied by the user-level control resource set The resource is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is also different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of the time-frequency resource is implemented.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the method further includes a decoding unit, where the decoding unit is configured to obtain the user-level control resource set on the time-frequency resource indicated by the second indication information Downstream control information DCI; the DCI includes resource allocation information for indicating a physical resource block PRB occupied by the physical downlink shared channel PDSCH of the user equipment; further, the second receiving unit is specifically configured to use the PRB indicated by the DCI The time-frequency resource except the time-frequency resource occupied by the common control resource set and the user-level control resource set receives the PDSCH.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the second indication information includes an RIV field and a symbol field, where the RIV field is used by And indicating the frequency domain resource occupied by the user-level control resource set, where the symbol field is used to indicate the time domain resource occupied by the user-level control resource set.

Combining the third aspect, or the first possible implementation of the third aspect, or the third aspect In a second possible implementation manner of the third aspect, the common control resource set is located in an intermediate frequency band of the first symbol of the downlink subframe.

With reference to the third aspect, or the first possible implementation of the third aspect, or the second possible implementation of the third aspect, or the third possible implementation of the third aspect, in the third aspect In the four possible implementation manners, the first indication information includes an index value of the common control resource set, and the user equipment further includes: a determining unit, configured to determine, according to the index value, a time-frequency resource occupied by the common control resource set .

With reference to the second possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the terminal further includes a calculating unit, where the calculating unit is configured to calculate the RIV by using a preset analysis formula a value in the field to obtain a starting position and a length of the frequency domain resource, and the preset parsing formula is as follows:

b=RIV%N _RB

If(a+b>N _RB )

L=N _RB +2-a;RB _Start =N _RB -1-b

Else

L=a;RB _Start =b

In the preset analysis formula, the RIV is the value of the RIV field, N _RB is the system bandwidth, a and b are intermediate quantities, L is the length of the obtained frequency domain resource, and RB _Start is the obtained The starting position of the frequency domain of the frequency domain resource.

In a fourth aspect, an embodiment of the present invention provides a network device, where the network device includes a broadcast unit, a first sending unit, and a second sending unit, where the broadcast unit is configured to broadcast a main information block MIB, where the MIB includes a first indication information indicating a time-frequency resource occupied by the common control resource set, where the common control resource set is used to carry second indication information indicating a time-frequency resource occupied by the user-level control resource set; the first sending unit, The second sending unit is configured to send the second indication information on the time-frequency resource indicated by the first indication information, where the second sending unit is configured to divide the common control resource set and the user-level control resource set on the current subframe. Time-frequency resources other than time-frequency resources are sent to transmit service data.

By running the above unit, the network device indicates the common control resource set to the user equipment through the MIB. The time-frequency resource occupied by the user equipment receives the common control resource set on the time-frequency resource and determines the time-frequency resource occupied by the user-level control resource set according to the common control resource set, and subsequently, the user equipment is allocated to itself The time-frequency resource except the time-frequency resource occupied by the common control resource set and the time-frequency resource other than the time-frequency resource occupied by the user-level control resource set are used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, when the PDCCH is different The determined PDSCH is also different; instead of pre-configuring the fixed PDCCH and PDSCH, dynamic multiplexing of time-frequency resources is realized.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the second sending unit is configured to: send the user equipment in the user-level control resource set on the time-frequency resource indicated by the second indication information Downlink control information DCI; the DCI includes resource allocation information for indicating a physical resource block PRB occupied by the physical downlink shared channel PDSCH of the user equipment; and the public control resource set and the user level are deleted on the PRB indicated by the DCI The time-frequency resource other than the time-frequency resource of the control resource set transmits the PDSCH.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the second indication information includes a resource indication value RIV field and a symbol field, and the RIV field The frequency domain resource is used to indicate the user level control resource set, and the symbol field is used to indicate the time domain resource occupied by the user level control resource set.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, in the third possible implementation manner of the fourth aspect, the common control resource set Located on the middle band of the first symbol of the downlink subframe.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, or the second possible implementation manner of the fourth aspect, or the third possible implementation manner of the fourth aspect, in the fourth aspect In the four possible implementation manners, the first indication information includes an index value of the common control resource set, where the index value is used by the user equipment to determine the common control resource set.

With reference to the second possible implementation of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the network device further includes a calculating unit, where the calculating unit is configured to perform calculation according to a preset formula to obtain a The value RIV in the RIV field is as follows:

RIV=N _RB (L-1)+RB _Start

Else

RIV=N _RB (N _RB -L+1)+(N _RB -1-RB _Start )

In a fifth aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a transceiver, where the memory is used to store programs and data, and the transceiver is configured to receive and send signals; the processor calls the memory. And a program for receiving, by the transceiver, a main information block MIB broadcasted by the network device, where the MIB includes first indication information for indicating a time-frequency resource occupied by the common control resource set; Decoding the common control resource set on the time-frequency resource indicated by the first indication information to obtain second indication information, where the second indication information includes time-frequency resources for indicating a user-level control resource set; when being allocated to itself The time-frequency resource except the time-frequency resource occupied by the common control resource set and the user-level control resource set receives the service data.

By performing the foregoing operations, the network device indicates, by using the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and determines the user-level control resource according to the common control resource set. Time-frequency resources occupied by the set, and subsequently, the time-frequency resources of the time-frequency resources allocated by the user equipment, except for the time-frequency resources occupied by the common control resource set and the time-frequency resources occupied by the user-level control resource set The resource is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is also different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of the time-frequency resource is implemented.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the processor is further configured to obtain, by using the transceiver, the user-level control resource set to obtain a downlink on the time-frequency resource indicated by the second indication information. Controlling information DCI; the DCI includes resource allocation information for indicating a physical resource block PRB occupied by a physical downlink shared channel PDSCH of the user equipment; the processor divides the common control by using the transceiver in a time-frequency resource allocated to itself The time-frequency resource receiving service data other than the time-frequency resource occupied by the resource set and the user-level control resource set is specifically: the transceiver controls the public control resource set and the user-level control on the PRB indicated by the DCI. The resource set is outside the time-frequency resource The time-frequency resource receives the PDSCH.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in the second possible implementation manner of the fifth aspect, the second indication information includes a resource indication value RIV field and a symbol field; the RIV field The frequency domain resource is used to indicate the user level control resource set, and the symbol field is used to indicate the time domain resource occupied by the user level control resource set.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, or the second possible implementation manner of the fifth aspect, in the third possible implementation manner of the fifth aspect, the common control resource set Located on the middle band of the first symbol of the downlink subframe.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, or the second possible implementation manner of the fifth aspect, or the second possible implementation manner of the fifth aspect, in the fifth aspect In the four possible implementations, the first indication information includes an index value of the common control resource set, and the user equipment decodes the common control resource set to obtain the second indication information on the time-frequency resource indicated by the first indication information. The processor is further configured to: determine, according to the index value, a time-frequency resource occupied by the common control resource set.

With reference to the second possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the processor is further configured to calculate a value of the RIV field by using a preset analysis formula to obtain a The starting position and length of the frequency domain resource are as follows:

b=RIV%N _RB

If(a+b>N _RB )

L=N _RB +2-a;RB _Start =N _RB -1-b

Else

L=a;RB _Start =b

In a sixth aspect, an embodiment of the present invention provides a network device, where the network device includes a processor, a memory, and a transceiver, where the memory is used to store programs and data, and the transceiver is configured to receive and send. a processor that invokes a program in the memory to perform an operation of: broadcasting, by the transceiver, a primary information block MIB, the MIB including first indication information indicating a time-frequency resource occupied by a common control resource set, The common control resource set is configured to carry the second indication information indicating the time-frequency resource occupied by the user-level control resource set, and the second indication information is sent by the transceiver on the time-frequency resource indicated by the first indication information; The transceiver transmits the service data on the current subframe by using the common control resource set and the time-frequency resource other than the time-frequency resource occupied by the user-level control resource set.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the processor, by using the transceiver, the current control resource set and the time-frequency resource occupied by the user-level control resource set in the current subframe The time-frequency resource sending service data is specifically: sending, by the transceiver, downlink control information DCI of the user equipment in the user-level control resource set on the time-frequency resource indicated by the second indication information; the DCI includes The physical downlink shared channel PDSCH of the device occupies the resource allocation information of the physical resource block PRB; the time-frequency resource transmission except the time-frequency resource of the public control resource set and the user-level control resource set is received on the PRB indicated by the DCI The PDSCH.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in the second possible implementation manner of the sixth aspect, the second indication information includes a resource indication value RIV field and a symbol field, and the RIV field The frequency domain resource is used to indicate the user level control resource set, and the symbol field is used to indicate the time domain resource occupied by the user level control resource set.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, or the second possible implementation manner of the sixth aspect, in the third possible implementation manner of the sixth aspect, the common control resource set Located on the middle band of the first symbol of the downlink subframe.

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, or the second possible implementation manner of the sixth aspect, or the third possible implementation manner of the sixth aspect, in the sixth party In a fourth possible implementation manner, the first indication information includes an index value of the common control resource set, where the index value is used by the user equipment to determine the common control resource set.

With reference to the second possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the processor is further configured to perform calculation according to a preset formula to obtain a value RIV of the RIV field, The preset formula is as follows:

RIV=N _RB (L-1)+RB _Start

Else

RIV=N _RB (N _RB -L+1)+(N _RB -1-RB _Start )

In a seventh aspect, the embodiment of the present invention provides a communication system, where the user equipment is a user equipment and a network device, where the user equipment is the third aspect, or any possible implementation manner of the third aspect, or the fifth aspect, or The user equipment described in any possible implementation manner of the fifth aspect, the network device is the fourth aspect, or any possible implementation manner of the fourth aspect, or the sixth aspect, or any possible of the sixth aspect The network device described in the implementation.

In an eighth aspect, an embodiment of the present invention provides a storage medium for storing instructions that, when executed on a computer, perform the method described in the first aspect or any possible implementation of the first aspect.

In a ninth aspect, an embodiment of the present invention provides a storage medium for storing an instruction that, when executed on a computer, performs the method described in the second aspect or any possible implementation of the second aspect.

By implementing the embodiment of the present invention, the network device indicates, by using the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and determines the user-level according to the common control resource set. Controlling the time-frequency resource occupied by the resource set, and subsequently, the user equipment allocates to the time-frequency resource of the self-control time resource other than the time-frequency resource occupied by the common control resource set and the time-frequency resource occupied by the user-level control resource set. The time-frequency resource is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is also different; instead of being pre-configured The fixed PDCCH and PDSCH implement dynamic multiplexing of time-frequency resources.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below.

1 is a schematic structural diagram of a communication system according to an embodiment of the present invention;

2 is a schematic flowchart of a resource indication method according to an embodiment of the present invention;

3 is a schematic diagram of distribution of time-frequency resources according to an embodiment of the present invention;

4 is a schematic diagram of another time-frequency resource distribution according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another time-frequency resource distribution according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of another time-frequency resource distribution according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

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

FIG. 9 is a schematic structural diagram of still another user equipment according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of still another network device according to an embodiment of the present invention.

detailed description

Various aspects are described herein in connection with user equipment (UE) and/or base stations. A user device may refer to a device that provides a voice and/or data connection to a user. The user device can be connected to a computing device such as a laptop or desktop computer, or it can be a standalone device such as a personal digital assistant (PDA). User equipment may also be referred to as systems, subscriber units, subscriber stations, mobile stations, mobile stations, remote stations, access points, remote terminals, access terminals, user terminals, user agents, or user devices. User equipment can be subscriber stations, wireless devices, cellular phones, PCS phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), handheld devices with wireless connectivity Or other processing device connected to the wireless modem. A base station (e.g., an access point, a Node B, an evolved Node B (eNB), or a gNB) may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface. By converting the received air interface frame to an IP packet, the base station can act as a router between the wireless terminal and the rest of the access network, which can include an Internet Protocol (IP) network. The base station can also manage the attributes of the air interface. Coordination.

Moreover, the various functions described herein can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored or transmitted as one or more instructions or code to a computer readable medium. Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another. A storage medium may be any available media that can be accessed by a computer. By way of example and not limitation, the computer readable medium may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage device or may be used to carry or store in the form of an instruction or data structure The required program code and any other medium that can be accessed by the computer. Also, any connection is properly termed a computer-readable medium. For example, if you use a coaxial cable, fiber optic cable, twisted pair cable, digital subscriber line (DSL), or wireless technology such as infrared, radio, and microwave to send software from a website, server, or other remote source, the coaxial cable Wireless fiber optic cables, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the medium. Disk and optical disks as used herein include compact disk (CD), laser disk, optical disk, digital versatile disk (DVD), floppy disk, Blu-ray disk (BD), in which the disk usually magnetically replicates data, and the disk is optically optically Copy the data. Combinations of the above should also be included in the scope of computer readable media.

The various techniques described herein can be used in various wireless communication systems, such as Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access ( OFDMA) systems, single carrier FDMA (SD-FDMA) systems, and other such systems. As used herein, the terms "system" and "network" are often used interchangeably. A CDMA system may implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, High Speed Packet Access (HSPA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), and the like. UTRA includes Wideband-CDMA (W-CDMA) and other variants of CDMA. In addition, CDMA2000 covers the IS-2000, IS-95, and IS-856 standards. A TDMA system can implement a wireless technology such as the Global System for Mobile Communications (GSM). The OFDMA system can implement wireless technologies such as Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and the like. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) is an upcoming release that uses E-UTRA, which employs OFDMA on the downlink and SC-FDMA on the uplink. Under the name "3rd Generation Partnership Program" HSPA, HSDPA, HSUPA, UTRA, E-UTRA, UMTS, LTE, LTE-A, 5G, SAE, EPC, and GSM are described in the documents of the organization of (3GPP). Further, CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). Further, these wireless communication systems may additionally include a peer-to-peer (eg, mobile to mobile) ad hoc network that typically uses unpaired unlicensed spectrum, 802.xx wireless LAN, Bluetooth, and any other short-range and remote wireless communication technologies. system. For the sake of clarity, terms associated with WCDMA, HSPA, HSDPA, and HSUPA are used in the following description. However, it should be apparent that the appended claims are not intended to be limited to WCDMA, HSPA, HSDPA, and HSUPA unless explicitly stated.

In addition, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, the phrase "X employs A or B" is intended to mean any of the natural inclusive permutations, unless otherwise specified, or apparent from the context. That is, any of the following examples satisfies the phrase "X uses A or B": X uses A; X uses B; or X uses both A and B. In addition, the articles "a" and "an", and, ".

Various aspects will be given in terms of systems that may include multiple devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules, etc. discussed in connection with the Figures. A combination of these schemes can also be used.

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 1, FIG. 1 is a schematic structural diagram of a communication system 10 according to an embodiment of the present invention. The system 10 includes a network device 101 and a user equipment 102, where the network device 101 is used for communication resources (also called " Channels, time-frequency resources, etc. are scheduled, for example, when the communication system is a communication system based on LTE technology, the network device 101 may be a base station (eNodeB, eNB); when the communication system is based on the fifth generation In the communication system of 5th-Generation (5G), the network device 101 may be a base station (gNB) suitable for New Radio (NR); in a communication system based on other technologies, the network device 101 There may be other names, which are not examples here. The user equipment 102 is a terminal device that can communicate with the network device, and the terminal device can be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a mobile internet device (English: mobile internet device, referred to as MID), and a wearable device. (eg smart watches (like iWatch) Etc.), smart bracelets, pedometers, etc.), and so on.

Referring to FIG. 2, FIG. 2 is a schematic flowchart of a resource indication method according to an embodiment of the present invention. The method may be implemented based on the system 10 shown in FIG. 1, and the method includes, but is not limited to, the following steps.

Step S201: The network device broadcasts the main information block MIB.

Specifically, the MIB includes first indication information for indicating a time-frequency resource occupied by a common control resource set, that is, the MIB indicates the public control by using the first indication information carried. On which time-frequency resources are transmitted, the user equipment receiving the MIB can decode the common control resource set on the time-frequency resource indicated by the first indication information; the user equipment acquires the public control The purpose of the resource set is to obtain the second indication information carried by the common control resource set, where the second indication information is used to indicate on which time-frequency resources the at least one user-level control resource set is transmitted, and the user-level control resource set refers to A set of control resources for carrying signaling (or "downlink control information") between the user equipment (or "user") scheduled by the network device in the current downlink subframe. A downlink sub-frame may include one or more user-level control resource sets, and each user-level control resource set corresponds to a group of user equipments, and is used to carry downlink control information of all user equipments in the group of user equipments. Each set of user equipment includes one or more user equipments.

In an optional solution, the common control resource set is located in an intermediate frequency band of the first symbol of the downlink subframe, where the first symbol in the time domain is to ensure that the user equipment can receive the early Publicly controlling a set of resources, so that the user equipment decodes the user-level control resource set according to the second indication information as soon as possible, so that the delay of the user equipment may be reduced; and the intermediate frequency band (or the intermediate frequency band) is in the frequency domain. ")), in order for the common control resource set to be received by more user equipments, because the frequency of frequency domain resources allocated to different user equipments is high or low, if the frequency of carrying the common control resource set is set too high Or too low may cause a part of the user equipment to be unable to receive the common control resource set. Therefore, the embodiment of the present invention specifically sets the frequency of carrying the common control resource set to an intermediate frequency band, where the intermediate frequency band may be close to the bandwidth resource occupied by the cell. Multiple transmission resource blocks in the middle (which can be viewed from high to low or bottom to high) (Transmission Resour) Ce block, TRB), for example, six physical resource blocks (PRBs) in the middle. FIG. 3 is a schematic diagram of a time-frequency resource distribution according to an embodiment of the present invention. In FIG. 3, all orthogonally arranged squares are time-frequency resources allocated to user equipment, wherein a vertical indication indicates a frequency domain, and a horizontal direction Representing the time domain, the squares marked with thick lines represent the time-frequency of the common control resource set Resource location.

Further, when there are multiple common control resource sets, the network device may statically configure index values of several common control resource sets in advance, so that each common control resource set corresponds to its own index value, and then the MIB can pass the index value. Indicates the corresponding common control resource set. It can be understood that indicating the common control resource set by the index value can reduce the signaling overhead of the MIB.

In an optional solution, the second indication information in the common control resource set may include a Resource Indication Value (RIV) field and a preset symbol field, where the RIV field and the symbol field are used together to indicate The time-frequency domain start termination position of each control region, wherein the RIV field is used to indicate the start position of the frequency domain and the length (or width) of the frequency domain, and the symbol field is used to indicate the time domain. Control symbol. The calculation method of the RIV intermediate frequency domain adopts a resource allocation method similar to LTE, and the formula (which may be called a “preset formula”) is as follows:

RIV=N _RB (L-1)+RB _Start

Else 1-1

RIV=N _RB (N _RB -L+1)+(N _RB -1-RB _Start )

In Equation 1-1, L and RB _Start represent the frequency domain length and the frequency domain start position occupied by the user-level control resource set, respectively. N _RB represents the system bandwidth, expressed in terms of the number of RBs. For example, a 10 MHz system bandwidth includes 50 RBs; a 20 MHz system bandwidth includes 100 RBs.

When there are multiple user-level control resource sets, the second indication information may be indicated by multiple sets of RIV fields and symbol fields, where a set of RIV fields and symbol fields correspond to a user-level control resource set, and Table 1 lists The correspondence between the information of the three sets of RIV fields and symbol fields and the three user-level control resource sets.

Table 1

The upper user-associated control resource set illustrated in Table 1 may be referred to as a user-level control resource set 1, a user-level control resource set 2, and a user-level control resource set 3, respectively, where RIV1 is a RIV field indicating the user-level control resource set 1 The value is calculated by using the above preset formula, and Sym_Length1 is a value indicating a symbol field of the user control resource set 1, which is in the range of 1-2, indicating the length of the symbol occupied by the user-level resource set 1, for example, when the value is At 2 o'clock, it means that the symbol occupied by user-level resource set 1 starts from the first symbol of the sub-frame and occupies 2 symbols. Similarly, RIV2 is a value indicating a RIV field of the user level control resource set 2, Sym_Length2 is a value indicating a symbol field of the user control resource set 2; RIV3 is a value indicating a RIV field of the user level control resource set 3, and Sym_Length3 is an indication The user controls the value of the symbol field of resource set 3. Two user-level control resource sets are selectively enumerated in FIG.

Step S202: The user equipment receives the broadcast master information block MIB.

Step S203: The user equipment decodes the first indication information included in the MIB, and determines the time-frequency resource occupied by the common control resource set according to the first indication information.

Step S204: The network device sends the common control resource set on the time-frequency resource occupied by the common control resource set.

Step S205: The user equipment decodes the common control resource set on the time-frequency resource indicated by the first indication information to obtain second indication information.

Specifically, the user equipment parses the first indication message from the MIB after receiving the MIB, and the user equipment may determine, according to the first indication message, which time-frequency resources are carried by the common control resource set, so the user equipment is Decoding the common control resource set on the time-frequency resource indicated by the first indication information, thereby obtaining the second indication information.

Step S206: The user equipment determines, according to the second indication information, a time-frequency resource occupied by the user-level control resource set.

Specifically, the user equipment may learn that the second indication information is used to indicate that the user-level control resource set is transmitted on the time-frequency resources, so the user equipment may determine, according to the second indication information, that the user-level control resource set is occupied. What are the time-frequency resources.

In an optional solution, when the second indication information indicates, by using the RIV field and the symbol field, the user-level control resource set is transmitted on the time-frequency resources, the user equipment may pass the RIV field and the following formula. The frequency domain (in the default parsing formula) is:

b=RIV%N _RB

If(a+b>N _RB )

L=N _RB +2-a;RB _Start =N _RB -1-b 1-2

Else

L=a;RB _Start =b

In addition, the user equipment also needs to obtain the symbol occupied by the user-level control resource set according to the character field. It is understood that the user equipment determines the frequency domain occupied by the user-level control resource set according to the RIV, and determines the frequency domain occupied by the user-level control resource set according to the character field, and then determines the user-level control resource set. The specific time-frequency resource location occupied.

Step S207: The network device sends service data in the current subframe except the time-frequency resource except the time-frequency resource of the common control resource set and the user-level control resource set.

Step S208: The user equipment transmits service data according to time-frequency resources other than time-frequency resources occupied by the user-level control resource set in the time-frequency resources allocated to the user equipment.

Specifically, the network device needs to use time-frequency resources (also referred to as “channels”) to transmit service data (for example, data other than signaling), and specific time-frequency resources are used to transmit the service data according to the public. The control resource set and the time-frequency resource occupied by the user-level control resource set are determined, that is, in the control region of the downlink subframe, except for the common control resource set and the time-frequency resource occupied by the user-level control resource set, the control A time-frequency resource that is idle in the area can be used to transmit service data, that is, a Physical Downlink Shared Channel (PDSCH) multiplexes a Physical Downlink Control Channel (PDCCH). Specifically, the network device carries the downlink control information DCI on the user-level control resource set, and the user equipment obtains the DCI by decoding the user-level control resource set, where the DCI includes The resource allocation information of the physical resource block PRB of the PDSCH, that is, which time-frequency resources are allocated to the user equipment, and the user equipment removes the public control resource set from the time-frequency resources allocated to the user equipment. The user-level control time-frequency resource outside the time-frequency resource occupied by the resource set receives the service data sent by the network device. That is to say, the PRB occupied by the PDSCH of the user equipment can be indicated by the DCI, and the user equipment determines the PRB occupied by the PDSCH of the user equipment according to the determined common control resource set and the time-frequency position of all the user-level control resource sets. Whether there is a control resource in the control area (including the control area), if any, the time-frequency resource occupied by the control resource is excluded, and the rest is the time-frequency resource of the PDSCH of the user equipment.

It should be noted that the order of the above partial steps can be adjusted, and the formed scheme after the adjustment belongs to the embodiment of the present invention as long as there is no logic problem.

For ease of understanding, the following is an example of a more detailed scenario.

Example 1:

In subframe n, the system sends a common control resource set and a user-level control resource set in the downlink control region, and the user-level control resource set occupies the first two symbols of the downlink subframe, and the resource block (RB) 5, the frequency domain length is 20, as shown in Figure 5. The public control resource indicates that the RIV field of the frequency domain includes the RIV information, and takes the 20 MHz system bandwidth as an example. According to the above formula 1-1, RIV=100*19+5=1905 can be calculated; the common control resource indicates the time domain. The symbol field includes Sym_Length information, the information indicated by the information in the symbol field may be the number of occupied symbols, and Sym_Length=2 indicates that 2 symbols are occupied.

After receiving the public control resource set according to the time-frequency resource indicated by the MIB, the user equipment first Parsing the common control resource set to obtain the information of the RIV field, and then calculating the starting RB and the length of the user-level control resource set according to the above formula 1-2, the calculation process is as follows:

b=1905%100=5

L=20; RB _Start = 5

Can be derived through the above calculation, the frequency domain starting position corresponding to the RB _start RIV resource sets information indicating the user-level control ₁ = 5 and the frequency domain of length L ₁ = 20.

The user equipment also determines the number of symbols occupied by the user-level control resource set according to the symbol field Sym_Length, that is, according to the Sym_Length=2, the time-frequency resource carrying the user-level control resource set occupies 2 symbols. The user equipment obtains the time domain information and the frequency domain information to determine which time-frequency resources are occupied by the user-level control resource set.

After determining the time-frequency resource occupied by the common control resource set and the user-level control resource set, the network device may send the service data in the control area except the common control resource set and the time-frequency resource other than the user-level control resource set. The user equipment can receive the service data in the PRB indicated by the DCI, except for the common control resource set and the time-frequency resources (including the control area and the data area) other than the user-level control resource set. For example, the service data of the user equipment 1 and the user equipment N in FIG. 5 are carried on all control symbols of the control area; the service data of the user equipment M is carried on the symbols of the control area except the symbols occupied by the common control resource set.

Example 2:

In subframe n, the system sends a common control resource set and two user-level control resource sets in the downlink control region, and the two user-level control resource sets may be respectively referred to as user-level control resource set 1 and user-level control resource set. 2, wherein the user-level control resource set 1 occupies the first two symbols of the downlink subframe, the starting RB is 5, the frequency domain length is 20, and the user-level control resource set 2 occupies the first symbol, and the starting RB is 60. The frequency domain length is 10, as shown in Figure 6. The common control resource indicates that one RIV field in the two RIV fields of the frequency domain includes RIV1 information, and another RIV field includes RIV2 information. Taking the 20 MHz system bandwidth as an example, RIV1=100* can be calculated according to the above formula 1-1. 19+5=1905, RIV2=100*91+39=9139; when the public control resource is intensively indicated One of the two symbol fields of the domain includes Sym_Length1 information, and the other symbol field includes Sym_Length2 information, and the information indicated by the information in the symbol field may be the number of occupied symbols, where Sym_Length1=2, Sym_Length2=1.

After receiving the common control resource set according to the time-frequency resource indicated by the MIB, the user equipment first parses the common control resource set to obtain the information of the RIV field, and then calculates the start of the two user-level control resource sets according to the above formula 1-2. RB and length, the calculation process is as follows:

b ₁ =1905%100=5

L ₁ =20; RB _{Start, 1} = 5

b ₂ =9139%100=39

L ₂ =100+2-92=10

RB _{Start, 2} = 100-1-39=60

After the above calculation, it can be concluded that the frequency domain starting position RB _{start 1} =5 indicated by the RIV1 information corresponding to the user level control resource set 1 and the frequency domain length being L ₁ =20, and the RIV2 corresponding to the user level control resource set 2 The frequency domain starting position of the information indication is RB _{start 2} = 60 and the frequency domain length is L ₂ = 10.

The user equipment also determines the number of symbols occupied by the two user-level control resource sets according to the symbol fields Sym_Length1 and Sym_Length2, that is, the time-frequency resources of the user-level control resource set 1 are learned according to the Sym_Length1=2 corresponding to the user-level control resource set 1. The two symbols are occupied, and the time-frequency resource carrying the user-level control resource set 2 occupies one symbol according to the Sym_Length1=1 corresponding to the user-level control resource set 2. The user equipment obtains the time domain information and the frequency domain information to determine which time-frequency resources are occupied by the user-level control resource set.

After determining the time-frequency resource occupied by the common control resource set and the user-level control resource set, the network device may send the service data in the control area except the common control resource set and the time-frequency resource other than the user-level control resource set. The user equipment can receive the service data in the PRB indicated by the DCI, except for the common control resource set and the time-frequency resources (including the control area and the data area) other than the user-level control resource set. For example, the service data of the user equipment 1 and the user equipment N in FIG. 6 are carried on all control symbols of the control area; the service data of the user equipment M is carried in the control area except the common control resource set. On symbols other than symbols.

In the method described in FIG. 2, the network device indicates, by the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and determines according to the common control resource set. The time-frequency resource occupied by the user-level control resource set, and subsequently, the time-frequency resource occupied by the user equipment to be allocated to the time-frequency resource of the common control resource set and the time-frequency resource occupied by the user-level control resource set The time-frequency resources are used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCHs are different is different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of the time-frequency resources is implemented.

The method of the embodiments of the present invention is described in detail above. In order to facilitate the implementation of the above embodiments of the embodiments of the present invention, correspondingly, the apparatus of the embodiments of the present invention is provided below.

Referring to FIG. 7, FIG. 7 is a schematic structural diagram of a user equipment 70 according to an embodiment of the present invention. The user equipment 70 may include a first receiving unit 701, an obtaining unit 702, and a second receiving unit 703, where the first receiving The unit 701 is configured to receive a primary information block MIB that is broadcast by the network device, where the MIB includes first indication information for indicating a time-frequency resource occupied by the common control resource set, and the acquiring unit 702 is configured to indicate the first indication information. Decoding the common control resource set on the time-frequency resource to obtain second indication information, where the second indication information is used to indicate a time-frequency resource occupied by the user-level control resource set; and the second receiving unit 703 is configured to allocate to the self-- The time-frequency resource receives the service data in addition to the time-frequency resource occupied by the common control resource set and the time-frequency resource occupied by the user-level control resource set.

In a possible implementation, the user equipment further includes a decoding unit, where the decoding unit is configured to decode the user-level control resource set to obtain downlink control information DCI on the time-frequency resource indicated by the second indication information; Including a physical downlink shared channel PDSCH for indicating the user equipment Resource allocation information of the physical resource block PRB; further, the second receiving unit is specifically configured to: on the PRB indicated by the DCI, except the common control resource set and the time-frequency resource occupied by the user-level control resource set The time-frequency resource receives the PDSCH.

In a further possible implementation, the second indication information includes an RIV field and a symbol field, where the RIV field is used to indicate a frequency domain resource occupied by the user level control resource set, where the symbol field is used for Indicates the time domain resource occupied by the user level control resource set.

In yet another possible implementation, the common control resource set is located in an intermediate frequency band of the first symbol of the downlink subframe.

In a further possible implementation, the first indication information includes an index value of the common control resource set; the user equipment further includes: a determining unit, configured to determine, according to the index value, the time occupied by the common control resource set Frequency resources.

In a further possible implementation, the user equipment further includes a calculating unit, configured to calculate a value of the RIV field by using a preset parsing formula to obtain a starting position and a length of the frequency domain resource, The preset analytical formula is as follows:

b=RIV%N _RB

If(a+b>N _RB )

L=N _RB +2-a;RB _Start =N _RB -1-b

Else

L=a;RB _Start =b

It should be noted that the specific implementation of each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 2 .

In the user equipment 70 described in FIG. 7, the network device indicates, by the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and according to the common control resource. The set determines the time-frequency resource occupied by the user-level control resource set, and subsequently, the time-frequency resource occupied by the user equipment is allocated to its own time-frequency resource except the common control resource set. The time-frequency resource other than the time-frequency resource occupied by the user-level control resource set is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is different; instead, the fixed PDCCH and the PDSCH are configured in advance, and the PDSCH is implemented. Dynamic multiplexing of time-frequency resources.

Referring to FIG. 8, FIG. 8 is a schematic structural diagram of a network device 80 according to an embodiment of the present invention. The network device 80 may include a broadcast unit 801, a first sending unit 802, and a second sending unit 803. a broadcast master information block MIB, where the MIB includes first indication information for indicating a time-frequency resource occupied by a common control resource set, where the common control resource set is used to carry a time-frequency indicating a user-level control resource set a second indication information of the resource; the first sending unit 802 is configured to send the second indication information on a time-frequency resource indicated by the first indication information; and the second sending unit 803 is configured to: The public control resource set and the time-frequency resource other than the time-frequency resource of the user-level control resource set transmit service data.

In a possible implementation manner, the second sending unit is configured to: send downlink control information DCI of the user equipment in the user-level control resource set on the time-frequency resource indicated by the second indication information; Resource allocation information indicating a physical resource block PRB occupied by the physical downlink shared channel PDSCH of the user equipment; the PRB indicated by the DCI is other than the common control resource set and the time-frequency resource occupied by the user-level control resource set The time-frequency resource transmits the PDSCH.

In a further possible implementation, the second indication information includes a resource indication value RIV field and a symbol field, where the RIV field is used to indicate a frequency domain resource occupied by the user level control resource set, where the symbol field is used to indicate This user-level controls the time domain resources occupied by the resource set.

In another possible implementation manner, the first indication information includes the common control resource set An index value for the user equipment to determine the common control resource set.

In a further possible implementation, the network device further includes a calculating unit, configured to perform calculation according to a preset formula to obtain a value RIV in the RIV field, where the preset formula is as follows:

RIV=N _RB (L-1)+RB _Start

Else

RIV=N _RB (N _RB -L+1)+(N _RB -1-RB _Start )

In the network device 80 described in FIG. 8, the network device indicates, by the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and according to the common control resource. The set determines the time-frequency resource occupied by the user-level control resource set, and subsequently, the user equipment allocates to its own time-frequency resource, except for the time-frequency resource occupied by the common control resource set and the user-level control resource set. A time-frequency resource other than the frequency resource is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of the time-frequency resource is implemented.

Referring to FIG. 9, FIG. 9 is a user equipment 90 according to an embodiment of the present invention. The user equipment 90 includes a processor 901, a memory 902, and a transceiver 903. The processor 901, the memory 902, and the transceiver 903 are mutually connected by a bus. connection.

The memory 902 includes, but is not limited to, a random access memory (English: Random Access Memory, RAM for short), a read-only memory (English: Read-Only Memory, ROM for short), and an erasable programmable read-only memory (English: Erasable Programmable Read Only Memory (EPROM), or Portable Read-Only Memory (CD-ROM), which is used for related commands and data. The transceiver 903 is configured to receive and transmit data.

The processor 901 can be one or more central processing units (English: Central Processing Unit, Abbreviation: CPU). In the case where the processor 901 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 901 in the user equipment 90 is configured to read the program code stored in the memory 902, and perform the following operations: receiving, by the transceiver 903, a master information block MIB broadcasted by the network device, the MIB including a set of common control resources First indication information of the occupied time-frequency resource; the second indication information is obtained by the transceiver 903 decoding the common control resource set on the time-frequency resource indicated by the first indication information, where the second indication information is used to indicate The time-frequency resource occupied by the user-level control resource set; the time-frequency resource other than the time-frequency resource occupied by the common control resource set and the time-frequency resource occupied by the user-level control resource set receives service data in the time-frequency resource allocated to itself.

In a possible implementation, the processor 901 is further configured to: obtain, by using the transceiver 903, the downlink control information DCI by decoding the user-level control resource set on the time-frequency resource indicated by the second indication information; the DCI includes The resource allocation information of the physical resource block PRB of the physical downlink shared channel PDSCH of the user equipment is indicated; the processor 901 divides the common control resource set and the user level control by using the transceiver 903 in the time-frequency resource allocated to the user equipment 903. The time-frequency resource other than the time-frequency resource occupied by the resource set receives the service data, specifically: the time-frequency of the common control resource set and the user-level control resource set is removed by the transceiver 903 on the PRB indicated by the DCI. The time-frequency resource other than the resource receives the PDSCH.

In a further possible implementation, the first indication information includes an index value of the common control resource set, and the user equipment decodes the common control resource set on the time-frequency resource indicated by the first indication information to obtain a second indication. Before the information, the processor is further configured to: determine, according to the index value, a time-frequency resource occupied by the common control resource set.

In a further possible implementation, the processor is further configured to calculate a value in the RIV field by using a preset parsing formula to obtain a starting position and a length of the frequency domain resource, where the preset parsing formula is as follows:

b=RIV%N _RB

If(a+b>N _RB )

L=N _RB +2-a;RB _Start =N _RB -1-b

Else

L=a;RB _Start =b

It should be noted that the specific implementation of each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 2 .

In the user equipment 90 described in FIG. 9, the network device indicates, by the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and according to the common control resource. The set determines the time-frequency resource occupied by the user-level control resource set, and subsequently, the user equipment allocates to its own time-frequency resource, except for the time-frequency resource occupied by the common control resource set and the user-level control resource set. A time-frequency resource other than the frequency resource is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of the time-frequency resource is implemented.

Referring to FIG. 10, FIG. 10 is a network device 100 according to an embodiment of the present invention. The network device 100 includes a processor 1001, a memory 1002, and a transceiver 1003. The processor 1001, the memory 1002, and the transceiver 1003 are mutually connected by a bus. connection.

The memory 1002 includes, but is not limited to, a random storage memory (English: Random Access) Memory, referred to as RAM, read-only memory (English: Read-Only Memory, ROM for short), Erasable Programmable Read Only Memory (EPROM), or portable read-only memory (English: Compact Disc Read-Only Memory, abbreviated as: CD-ROM), the memory 1002 is used for related instructions and data. The transceiver 1003 is configured to receive and transmit data.

The processor 1001 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 1001 is a CPU, the CPU may be a single core CPU or a multi-core CPU.

The processor 1001 in the network device 100 is configured to read the program code stored in the memory 1002, and perform the operation of broadcasting the main information block MIB through the transceiver 1003, the MIB including the time for indicating the occupation of the common control resource set. The first indication information of the frequency resource, where the common control resource set is used to carry the second indication information indicating the time-frequency resource occupied by the user-level control resource set; and the time-frequency indicated by the transceiver 1003 in the first indication information The second indication information is sent by the resource; the transceiver 1003 sends the service data in the current subframe except the time-frequency resource except the time-frequency resource of the common control resource set and the user-level control resource set.

In a possible implementation manner, the processor 1001 sends, by using the transceiver 1003, the service data in the current subframe except the time-frequency resource except the time-frequency resource of the common control resource set and the user-level control resource set. The downlink control information DCI of the user equipment in the user-level control resource set is sent by the transceiver 1003 on the time-frequency resource indicated by the second indication information; the DCI includes a physical downlink shared channel PDSCH for indicating the user equipment. Resource allocation information of the physical resource block PRB; the time-frequency resource other than the time-frequency resource of the public control resource set and the user-level control resource set is transmitted on the PRB indicated by the DCI.

In a further possible implementation, the first indication information includes an index value of the common control resource set, and the index value is used by the user equipment to determine the common control resource set.

In a further possible implementation, the processor is further configured to perform calculation according to a preset formula to obtain a value RIV in the RIV field, where the preset formula is as follows:

RIV=N _RB (L-1)+RB _Start

Else

RIV=N _RB (N _RB -L+1)+(N _RB -1-RB _Start )

In the network device 100 described in FIG. 10, the network device indicates, by the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the common control resource set on the time-frequency resource and according to the common control resource. The set determines the time-frequency resource occupied by the user-level control resource set, and subsequently, the user equipment allocates to its own time-frequency resource, except for the time-frequency resource occupied by the common control resource set and the user-level control resource set. A time-frequency resource other than the frequency resource is used as the PDSCH, that is, the PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCH is different is different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of the time-frequency resource is implemented.

In summary, by implementing the embodiment of the present invention, the network device indicates, by using the MIB, the time-frequency resource occupied by the common control resource set to the user equipment, where the user equipment receives the public control resource set on the time-frequency resource and according to the public control. The resource set determines the time-frequency resource occupied by the user-level control resource set, and subsequently, the user equipment allocates to its own time-frequency resource, except for the time-frequency resource and the user-level control resource set occupied by the common control resource set. Time-frequency resources other than time-frequency resources are used as PDSCH, that is, The PDSCH is determined according to the PDCCH, and the PDSCH determined when the PDCCHs are different is also different; instead of pre-configuring the fixed PDCCH and the PDSCH, dynamic multiplexing of time-frequency resources is implemented.

One of ordinary skill in the art can understand that all or part of the process of implementing the above embodiments may be completed by a computer program to instruct related hardware, and the program may be stored in a computer readable storage medium. The flow of an embodiment of the methods as described above may be included. The foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Claims

A resource indication method, comprising:

Receiving, by the user equipment, a primary information block MIB broadcasted by the network device, where the MIB includes first indication information for indicating a time-frequency resource occupied by the common control resource set;

Decoding, by the user equipment, the common control resource set on the time-frequency resource indicated by the first indication information to obtain second indication information, where the second indication information is used to indicate that at least one user-level control resource set occupies a frequency resource; the user equipment receives service data in a time-frequency resource allocated to itself, except for the time-frequency resource except the time-frequency resource occupied by the common control resource set and the user-level control resource set.
The method of claim 1 further comprising:

Decoding, by the user equipment, the user-level control resource set on the time-frequency resource indicated by the second indication information, to obtain downlink control information DCI, where the DCI includes a physical downlink shared channel (PDSCH) for indicating the user equipment. Resource allocation information of the physical resource block PRB;

The time-frequency resource receiving service data of the time-frequency resource other than the common-frequency control resource set and the time-frequency resource occupied by the user-level control resource set in the time-frequency resource allocated to the user equipment includes:

The user equipment receives the PDSCH on the PRB indicated by the DCI, except that the common control resource set and the time-frequency resource occupied by the user-level control resource set occupying the time-frequency resource.
The method according to any one of claims 1-2, wherein the second indication information comprises a resource indication value RIV field and a symbol field, and the RIV field is used to indicate that the user level control resource set is occupied. The frequency domain resource is used to indicate the time domain resource occupied by the user level control resource set.
The method of claim 3, wherein the method further comprises:

The user equipment calculates a value of the RIV field by using a preset parsing formula to obtain a starting position of the frequency domain resource, and the preset parsing formula is as follows:

b = RIV% N RB

If(a+b>N RB )

L=N RB +2-a;RB Start =N RB -1-b

Else

L=a;RB Start =b

In the preset analysis formula, the RIV is the value of the RIV field, N RB is the system bandwidth, a and b are intermediate quantities, L is the length of the obtained frequency domain resource, and RB Start is the obtained The starting position of the frequency domain of the frequency domain resource.
The method according to any one of claims 1-2, wherein the common control resource set is located on an intermediate frequency band of a first symbol of a downlink subframe.
The method according to any one of claims 1-2, wherein the first indication information includes an index value of the common control resource set, and the time frequency indicated by the user equipment in the first indication information Before decoding the common control resource set to obtain the second indication information, the method further includes:

The user equipment determines, according to the index value, a time-frequency resource occupied by the common control resource set.
A resource indication method, comprising:

Broadcasting a primary information block MIB, the MIB includes first indication information for indicating a time-frequency resource occupied by a common control resource set, wherein the common control resource set is used to carry a bearer indicating at least one user-level control resource set Second indication information of the time-frequency resource;

Transmitting the second indication information on a time-frequency resource indicated by the first indication information;

The time-frequency resource except the time-frequency resource occupied by the common control resource set and the user-level control resource set is sent on the current subframe.
The method according to claim 7, wherein the time-frequency resource transmission service except the time-frequency resource occupied by the common control resource set and the user-level control resource set is saved on the current subframe. The data includes:

Transmitting downlink control information DCI of the user equipment in the user-level control resource set on the time-frequency resource indicated by the second indication information; the DCI includes a physical downlink shared channel PDSCH occupied by the user equipment Resource allocation information of the resource block PRB;

Transmitting, by the time-frequency resource other than the time-frequency resource, the common control resource set and the user-level control resource set on the PRB indicated by the DCI, the PDSCH.
The method according to any one of claims 7-8, wherein the second indication information comprises a resource indication value RIV field and a symbol field, where the RIV field is used to indicate that the user level control resource set is occupied. The frequency domain resource is used to indicate the time domain resource occupied by the user level control resource set.
The method of claim 9 wherein the method further comprises:

The network device performs calculation according to a preset encapsulation formula to obtain a value RIV in the RIV field, and the preset formula is as follows:

RIV=N RB (L-1)+RB Start

Else

RIV=N RB (N RB -L+1)+(N RB -1-RB Start )

In the preset formula, L is the length of the frequency domain resource, RB Start is the frequency domain start position of the frequency domain resource, N RB is the system bandwidth, and a and b are intermediate quantities.
The method according to any one of claims 7-8, wherein the common control resource set is located on an intermediate frequency band of a first symbol of a downlink subframe.
The method according to any one of claims 7-8, wherein the first indication information comprises an index value of the common control resource set, and the index value is used by the user equipment to determine the public control Resource set.
A user equipment, comprising:

a first receiving unit, configured to receive a primary information block MIB that is broadcast by the network device, where the MIB includes first indication information used to indicate a time-frequency resource occupied by the common control resource set;

An acquiring unit, configured to decode the common control resource set on the time-frequency resource indicated by the first indication information to obtain second indication information, where the second indication information is used to indicate a time-frequency occupied by a user-level control resource set Resource

The second receiving unit is configured to receive the service data of the time-frequency resource other than the time-frequency resource occupied by the common control resource set and the user-level control resource set in the time-frequency resource allocated to itself.
The user equipment according to claim 13, further comprising:

a decoding unit, configured to decode the user-level control resource set to obtain downlink control information DCI on a time-frequency resource indicated by the second indication information, where the DCI includes a physical downlink shared channel PDSCH for indicating the user equipment Resource allocation information of the physical resource block PRB;

The second receiving unit is configured to receive, by using the common control resource set and the time-frequency resource other than the time-frequency resource occupied by the user-level control resource set, on the PRB indicated by the DCI, to receive the PDSCH.
The user equipment according to any one of claims 13 to 14, wherein the second indication information comprises a RIV field and a symbol field, where the RIV field is used to indicate the frequency occupied by the user level control resource set. A domain resource, where the symbol field is used to indicate a time domain resource occupied by the user level control resource set.
The user equipment according to any one of claims 13-14, wherein the common control resource set is located in an intermediate frequency band of a first symbol of a downlink subframe.
The user equipment according to claim 16, further comprising:

a calculating unit, configured to calculate a value of the RIV field by using a preset parsing formula to obtain a starting position and a length of the frequency domain resource, where the preset parsing formula is as follows:

b=RIV%N RB

If(a+b>N RB )

L=N RB +2-a;RB Start =N RB -1-b

Else

L=a;RB Start =b

In the preset analysis formula, the RIV is the value of the RIV field, N RB is the system bandwidth, a and b are intermediate quantities, L is the length of the obtained frequency domain resource, and RB Start is the obtained The starting position of the frequency domain of the frequency domain resource.
The user equipment according to any one of claims 13 to 14, wherein the first indication information includes an index value of the common control resource set; the user equipment further includes:

And a determining unit, configured to determine, according to the index value, a time-frequency resource occupied by the common control resource set.
A network device, comprising:

a broadcast unit, configured to broadcast a primary information block MIB, where the MIB includes first indication information for indicating a time-frequency resource occupied by a common control resource set, where the common control resource set is used to carry a user-level control resource The second indication information of the time-frequency resource occupied by the set;

a first sending unit, configured to send the second indication information on a time-frequency resource indicated by the first indication information;

And a second sending unit, configured to send, according to the time-frequency resource other than the common-frequency resource group and the time-frequency resource occupied by the user-level control resource set, the service data in the current subframe.
The network device according to claim 19, wherein the second sending unit is specifically configured to:

Transmitting downlink control information DCI of the user equipment in the user-level control resource set on the time-frequency resource indicated by the second indication information; the DCI includes a physical downlink shared channel PDSCH occupied by the user equipment Resource allocation information of the resource block PRB;

Transmitting, by the time-frequency resource other than the time-frequency resource, the common control resource set and the user-level control resource set on the PRB indicated by the DCI, the PDSCH.
The network device according to any one of claims 19 to 20, wherein the second indication information comprises a resource indication value RIV field and a symbol field, and the RIV field is used to indicate the user level control resource set The frequency domain resource is used to indicate the time domain resource occupied by the user level control resource set.
The network device according to claim 21, further comprising:

a calculating unit, configured to perform a calculation according to a preset formula to obtain a value RIV in the RIV field, where the preset formula is as follows:

RIV=N RB (L-1)+RB Start

Else

RIV=N RB (N RB -L+1)+(N RB -1-RB Start )

In the preset formula, L is the length of the frequency domain resource, RB Start is the frequency domain start position of the frequency domain resource, N RB is the system bandwidth, and a and b are intermediate quantities.
The network device according to any one of claims 19 to 20, wherein the common control resource set is located in an intermediate frequency band of a first symbol of a downlink subframe.
The network device according to any one of claims 19 to 20, wherein the first indication information includes an index value of the common control resource set, and the index value is used by the user equipment to determine the public Control resource sets.
A communication system, characterized in that the communication system comprises a user equipment and a network device, the terminal is a user equipment according to any one of claims 13-18, and the network device is any one of claims 19-24 The network device described in the item.