WO2019029624A1 - 通信方法和设备 - Google Patents

通信方法和设备 Download PDF

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Publication number
WO2019029624A1
WO2019029624A1 PCT/CN2018/099632 CN2018099632W WO2019029624A1 WO 2019029624 A1 WO2019029624 A1 WO 2019029624A1 CN 2018099632 W CN2018099632 W CN 2018099632W WO 2019029624 A1 WO2019029624 A1 WO 2019029624A1
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Prior art keywords
mcs
index
terminal
granularity
communication
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PCT/CN2018/099632
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English (en)
French (fr)
Inventor
焦淑蓉
彭金磷
张鹏
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华为技术有限公司
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Publication of WO2019029624A1 publication Critical patent/WO2019029624A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the embodiments of the present application relate to the field of communications technologies, and in particular, to a communication method and device.
  • the international telecommunication union defines three types of application scenarios for 5G and future communication systems: enhanced mobile broadband (eMBB), ultra reliable and low latency communications. , URLLC) and massive machine type communications (mMTC).
  • eMBB enhanced mobile broadband
  • URLLC ultra reliable and low latency communications
  • mMTC massive machine type communications
  • the URLLC service requires extremely high latency, and the transmission delay is required to be within 0.5 milliseconds (millisecond, ms) without considering reliability. Under the premise of 99.999% reliability, the transmission delay is required to be 1 ms. Within.
  • the URLLC service When the URLLC service is transmitted, when the quality of the physical channel is poor or the data is required to receive high reliability, it is necessary to use more physical resources and use a lower encoding rate to transmit the data of the URLLC service, while transmitting the URLLC.
  • the service needs to meet the requirements of low latency, so the transmission time of the URLLC service is short, which results in the need to allocate more resources in the frequency domain. If the resource allocation granularity in the prior art is still adopted, this may cause the indication information for indicating the allocated frequency domain resource to occupy more bits, that is, increase the information size of the control channel, and increase the information of the control channel. The size will cause a decrease in reliability, which further affects the reliable reception of data of the URLLC service.
  • the embodiment of the present invention provides a communication method and device, which are used to avoid increasing the information size of the control channel and ensure the reliability of the URLLC service.
  • the embodiment of the present application provides a communication method, where the method is applied to a network device, including:
  • the resource allocation domain of the control information carries information about a frequency domain resource allocated to the terminal, wherein a granularity of the allocated frequency resource is the determined granularity.
  • the granularity of the frequency domain resource used for communication is allocated to the terminal according to the determined MCS, including:
  • the determined MCS belongs to the first MCS set, determining that the granularity of the frequency domain resource allocated for communication to the terminal is the first granularity
  • the determined MCS belongs to the second MCS set, determining that the granularity of the frequency domain resource allocated for the terminal for communication is the second granularity
  • the first granularity is greater than the second granularity, and any one of the first MCS sets is different from any one of the second MCS sets.
  • the method further comprises transmitting an index of the determined MCS to the terminal.
  • the determined index of the MCS occupies a preset K bit positions in the resource allocation domain, where the K is greater than or equal to An integer of 1, wherein the third set of MCSs is a subset of the first set of MCSs.
  • bit positions other than the K bit positions in the resource allocation field are used to indicate information of frequency domain resources.
  • the method further includes: when the determined MCS belongs to the first MCS set, determining that the first granularity comprises N resource blocks (RBs); Said N is greater than M, and said M is the number of RBs in the second granularity;
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain.
  • the method further includes:
  • the MCS domain of the control information is filled with a preset index, where the preset index is used to indicate that the resource allocation domain needs to be parsed The index of the determined MCS.
  • the preset index is specifically an index number 0 or a reserved MCS index number.
  • the determined index of the MCS occupies the MCS field in the control information.
  • the embodiment of the present application provides a communication method, where the method is applied to a terminal, including:
  • the resource allocation domain of the control information carries information of a frequency domain resource allocated to the terminal;
  • the determining, according to the MCS domain of the control information, the granularity of the frequency domain resource allocated by the network device to the terminal for communication including:
  • the network device determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to the first granularity
  • the network device determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to the second granularity
  • the first granularity and the second granularity are different, and the intersection of the first MCS index set and the second MCS index set is an empty set.
  • any one of the first MCS index sets is smaller than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • the method further comprises determining an index of an MCS for the terminal to communicate with the network device according to the MCS domain.
  • the determining, according to the MCS domain, an index of an MCS that communicates with the network device includes:
  • the MCS used by the terminal to communicate with the network device when the index indicated by the MCS domain belongs to the third MCS index set.
  • Index wherein the third MCS index set is a subset of the first MCS index set;
  • the index indicated by the MCS domain is an index of the MCS that communicates with the network device.
  • bit positions other than the K bit positions in the resource allocation field are used to indicate information of frequency domain resources.
  • the method further includes:
  • the index indicated by the MCS domain belongs to the first MCS index set, determining that the first granularity includes N RBs; wherein, the N is greater than M, and the M is the number of RBs in the second granularity;
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain.
  • the index indicated by the MCS domain belongs to the third MCS index set
  • the index indicated by the MCS domain is specifically used to indicate that the usage is resolved from the resource allocation domain.
  • the third MCS index set includes an index of zero.
  • the determining, by the network device, the granularity of the frequency domain resource used for the communication by the network device according to the MCS domain of the control information specifically including:
  • the network device determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to be a first granularity, where the fourth MCS index set is The intersection of the first MCS index set is an empty set, and the intersection of the fourth MCS index set and the second MCS index set is also an empty set.
  • the method further includes:
  • the index indicated by the MCS belongs to the fourth MCS index set, determining, according to the information on the K bit positions preset in the resource allocation domain, the communication for the terminal to communicate with the network device.
  • the index of the MCS is a value that specifies the index of the MCS.
  • any one of the first MCS index sets is greater than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • the method further includes:
  • an embodiment of the present application provides a communications device, including:
  • a processing module configured to determine an MCS that communicates with the terminal; and determine, according to the determined MCS, a granularity of the frequency domain resource allocated to the terminal for communication;
  • a sending module configured to send control information to the terminal, where a resource allocation domain of the control information carries information about a frequency domain resource allocated to the terminal, where a granularity of the allocated frequency resource is the determined granularity.
  • the processing module is specifically configured to: when the determined MCS belongs to the first MCS set, determine that the granularity of the frequency domain resource allocated for the terminal for communication is the first granularity; When the MCS belongs to the second MCS set, determining that the granularity of the frequency domain resource allocated for communication to the terminal is the second granularity;
  • the first granularity is greater than the second granularity, and any one of the first MCS sets is different from any one of the second MCS sets.
  • the sending module is further configured to send an index of the determined MCS to the terminal.
  • the determined index of the MCS occupies a preset K bit positions in the resource allocation domain, where the K is greater than or equal to An integer of 1, wherein the third set of MCSs is a subset of the first set of MCSs.
  • bit positions other than the K bit positions in the resource allocation field are used to indicate information of frequency domain resources.
  • the processing module is further configured to: when the determined MCS belongs to the first MCS set, determine that the first granularity includes N RBs; wherein the N is greater than M, The M is the number of RBs in the second granularity;
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain.
  • the processing module is further configured to: when the determined MCS belongs to the third MCS set, fill a preset index in an MCS field of the control information, where the preset The index is used to indicate that an index of the determined MCS needs to be parsed from the resource allocation domain.
  • the preset index is specifically an index number 0 or a reserved MCS index number.
  • the determined index of the MCS occupies the MCS field in the control information.
  • the communication device in the foregoing third aspect may be a network device or a chip inside the network device.
  • the embodiment of the present application provides a communications device, including:
  • a receiving module configured to receive control information sent by the network device, where the resource allocation domain of the control information carries information about a frequency domain resource allocated to the terminal;
  • a processing module configured to determine, according to an MCS domain of the control information, a granularity of the frequency domain resource allocated by the network device to the terminal for communication; and the terminal parsing the content according to the granularity of the frequency domain resource A resource allocation field of the control information, determining information of the frequency domain resource used by the terminal for communication.
  • the processing module is specifically configured to: when the index indicated by the MCS domain belongs to the first MCS index set, determine that the network device allocates a frequency domain for communication to the terminal The granularity of the resource is the first granularity; when the index indicated by the MCS domain belongs to the second MCS index set, determining that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to the second granularity;
  • the first granularity and the second granularity are different, and the intersection of the first MCS index set and the second MCS index set is an empty set.
  • any one of the first MCS index sets is smaller than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • the processing module is further configured to determine, according to the MCS domain, an index of an MCS used by the communications device to communicate with the network device.
  • the processing module is specifically configured to:
  • the index indicated by the MCS domain belongs to the third MCS index set, determining, according to the information on the K bit positions preset in the resource allocation domain, the communication for the communication device to communicate with the network device An index of the MCS, wherein the third MCS index set is a subset of the first MCS index set;
  • the index indicated by the MCS domain does not belong to the third MCS index set, determining that the index indicated by the MCS domain is an index of the MCS used by the communications device to communicate with the network device.
  • bit positions other than the K bit positions in the resource allocation field are used to indicate information of frequency domain resources.
  • the processing module is further configured to: when the index indicated by the MCS domain belongs to the first MCS index set, determine that the first granularity includes N RBs; wherein the N is greater than M, the M is the number of RBs in the second granularity;
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain.
  • the index indicated by the MCS domain belongs to the third MCS index set
  • the index indicated by the MCS domain is specifically used to indicate that the usage is resolved from the resource allocation domain.
  • the third MCS index set includes an index of zero.
  • the processing module is specifically configured to:
  • the network device determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to be a first granularity, where the fourth MCS index set is The intersection of the first MCS index set is an empty set, and the intersection of the fourth MCS index set and the second MCS index set is also an empty set.
  • the processing module is further configured to: when the index indicated by the MCS belongs to the fourth MCS index set, according to the preset K bit positions in the resource allocation domain The information determines an index of the MCS for the communication device to communicate with the network device.
  • any one of the first MCS index sets is greater than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • the processing module is further configured to: when the index indicated by the MCS belongs to the second MCS index set, according to the preset K bit positions in the resource allocation domain And determining an index of the MCS for the communication device to communicate with the network device.
  • the communication device in the fourth aspect may be a terminal or a chip inside the terminal.
  • the embodiment of the present application provides a network device, including: a processor and a transceiver, where the processor and the transceiver are used to perform the communication method according to any one of the embodiments of the present application.
  • the embodiment of the present application provides a terminal, including: a processor and a transceiver; and a processor and a transceiver, for performing the communication method according to any one of the embodiments of the present application.
  • an embodiment of the present application provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement a communication method as provided by the first aspect of the present application.
  • an embodiment of the present application provides a storage medium, including: a readable storage medium and a computer program, where the computer program is used to implement a communication method as provided by the second aspect of the present application.
  • the embodiment of the present application provides a program product, where the program product includes a computer program, where the computer program is stored in a readable storage medium, and at least one processor of the communication device can read from the readable storage medium. Taking the computer program, the at least one processor executes the computer program such that the communication device implements the communication method provided by the first aspect of the present application.
  • an embodiment of the present application provides a program product, where the program product includes a computer program, where the computer program is stored in a readable storage medium, and at least one processor of the communication device can read from the readable storage medium. Taking the computer program, the at least one processor executes the computer program such that the communication device implements the communication method provided by the second aspect of the present application.
  • the communication method and device provided by the embodiment of the present application determine the MCS that communicates with the terminal through the network device, determine the granularity of the frequency domain resource used for communication according to the determined MCS, and then send the control information to the terminal. Determining, by the network device, the granularity of the frequency domain resource used for communication by the network device according to the MCS domain of the control information, and parsing the resource allocation domain of the control information according to the granularity of the frequency domain resource, and determining The terminal is used for information of a frequency domain resource for communication. Therefore, the network device dynamically adjusts the granularity of the frequency domain resource used for communication to the terminal according to the MCS that communicates with the terminal.
  • the terminal obtains the granularity of the dynamically changed frequency domain resource by parsing the MCS domain, and thus accurately obtains the granularity of the frequency domain resource after the dynamic change.
  • Information about the frequency domain resources of the communication causes the information of the frequency domain resource in the resource allocation domain to occupy more bit positions, thereby avoiding increasing the information size of the control channel and ensuring the reliability of the URLLC service. Sex.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied;
  • FIG. 2 is a flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a communication method according to another embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a chip of a network device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a chip of a terminal according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied.
  • the communication system includes a network device and at least one terminal, the network device including, for example, a radio access network device.
  • the terminal is connected to the radio access network device in a wireless manner, and the radio access network device is connected to the core network device by wireless or wired.
  • the core network device and the wireless access network device may be independent physical devices, or may integrate the functions of the core network device with the logical functions of the wireless access network device on the same physical device, or may be a physical device.
  • the functions of some core network devices and the functions of some wireless access network devices are integrated.
  • the terminal can be fixed or mobile. FIG.
  • the communication system may further include other network devices, such as a wireless relay device and a wireless backhaul device, which are not shown in FIG. 1.
  • the embodiment of the present application does not limit the number of core network devices, radio access network devices, and terminals included in the communication system.
  • the radio access network device is a network device that the terminal accesses to the communication system in a wireless manner, and may be a base station NodeB, an evolved base station eNodeB, a base station in a 5G communication system, a base station in a future communication system, or a connection in a WiFi system.
  • the specific technology and the specific device configuration adopted by the network device are not limited in the embodiment of the present application.
  • a terminal may also be called a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), or the like.
  • the terminal can be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, and an industrial control.
  • Wireless terminal wireless terminal in self driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wisdom A wireless terminal in a smart city, a wireless terminal in a smart home, and the like.
  • Radio access network equipment and terminals can be deployed on land, indoors or outdoors, hand-held or on-board; they can also be deployed on the water; they can also be deployed on aircraft, balloons and satellites in the air.
  • the application scenarios of the radio access network device and the terminal are not limited.
  • the embodiments of the present application can be applied to downlink signal transmission, and can also be applied to uplink signal transmission, and can also be applied to device to device (D2D) signal transmission.
  • the transmitting device is a radio access network device, and the corresponding receiving device is a terminal.
  • the transmitting device is a terminal, and the corresponding receiving device is a wireless access network device.
  • the transmitting device is a terminal, and the corresponding receiving device is also a terminal.
  • the embodiment of the present application does not limit the transmission direction of the signal.
  • the radio access network device and the terminal and the terminal and the terminal can communicate through a licensed spectrum, or can communicate through an unlicensed spectrum, or simultaneously through the licensed spectrum and the unlicensed spectrum. Communication.
  • the radio access network device and the terminal and the terminal and the terminal can communicate through a spectrum of 6 gigahertz (GHz) or less, or can communicate through a spectrum of 6 GHz or higher, and can simultaneously use a spectrum below 6 GHz and The spectrum above 6 GHz is communicated.
  • GHz gigahertz
  • the embodiments of the present application do not limit the spectrum resources used between the radio access network device and the terminal.
  • FIG. 2 is a flowchart of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2, the method in this embodiment may include:
  • the network device determines an MCS that communicates with the terminal.
  • the MCS includes the coded rate information and the modulation mode information, and the network device can determine the network device according to, for example, the CQI reported by the terminal (such as a noise ratio condition, data sent by the terminal, terminal reliability requirements, etc.).
  • the MCS that communicates with the terminal may be either an MCS for uplink communication or an MCS for downlink communication, and may also include both.
  • the network device determines, according to the determined MCS, a granularity of allocating frequency domain resources used for communication to the terminal.
  • the network device determines the granularity of the frequency domain resource according to the determined MCS, where the frequency domain resource indicates that the network device allocates a frequency domain resource for communication to the terminal.
  • the size of the different frequency domain resources may be different for the different MCSs, or the MCS of the different groups may be different from the frequency of the different frequency domain resources, and each group of the MCS includes at least one MCS, which is not limited in this embodiment.
  • the granularity of the frequency domain resource indicates the size of the unit frequency domain resource allocated for communication to the terminal.
  • the granularity of the frequency domain resource may be a resource block group (RBG), that is, the network device allocates frequency domain resources for communication to the terminal in units of resource block groups, and each RBG consists of P RBs.
  • RBG resource block group
  • Composition, P is an integer greater than or equal to 1. or,
  • the network device sends control information to the terminal.
  • the terminal receives control information sent by the network device.
  • the network device determines the frequency domain resource allocated to the terminal according to the determined granularity of the frequency domain resource, and the granularity of the frequency domain resource allocated for the terminal is the granularity determined in S202. Then, the network device needs to inform the terminal of the frequency domain resources allocated by the terminal, that is, which frequency domain resources corresponding to the granularity are allocated to the terminal. Therefore, the network device in this embodiment sends control information to the terminal, where the control information is, for example, Downlink Control Information (DCI), where the control information includes a resource allocation domain, and the resource allocation domain carries the Information about a frequency domain resource allocated by the terminal, and the information is, for example, location information of the frequency domain resource.
  • DCI Downlink Control Information
  • the terminal receives the control information sent by the network device.
  • the terminal determines, according to the MCS domain of the control information, a granularity of the frequency domain resource allocated by the network device to the terminal for communication.
  • the control information sent by the network device includes an MCS domain
  • the terminal obtains the MCS by parsing the MCS domain of the control information.
  • the network device allocates the granularity of the frequency domain resource used for communication to the terminal, and the network device is based on the MCS.
  • the terminal may determine, based on the MCS indicated by the MCS domain, the granularity of the network device to allocate the frequency domain resource for communication to the terminal.
  • the terminal parses a resource allocation domain of the control information according to a granularity of the frequency domain resource, and determines information about a frequency domain resource used by the terminal for communication.
  • the terminal parses the resource allocation domain of the control information according to the granularity of the frequency domain resource determined in S204, so as to obtain the information of the frequency domain resource used by the terminal in the resource allocation domain for communication.
  • the larger the granularity of the frequency domain resource the less the bit position in the resource allocation domain of the resolution control information required to acquire the information of the frequency domain resource.
  • the system bandwidth includes 100 RBs. If the RBG (that is, the granularity of the frequency domain resources) is 10 RBs, the system bandwidth is divided into 10 RBGs, and correspondingly, the resource allocation domain is required.
  • the information of the 10 bit positions indicates the information of the frequency domain resource used by the terminal for communication.
  • the information of the first bit position is 1, it indicates that the first RBG is the frequency domain resource used by the terminal for communication, if the first one If the bit position information is 0, it indicates that the first RBG is not a frequency domain resource used by the terminal for communication.
  • the RBG i.e., the granularity of the frequency domain resource
  • the system bandwidth is divided into 5 RBGs, and correspondingly, information of 5 bit positions in the resource allocation domain is required to indicate information of the frequency domain resources used by the terminal for communication. Therefore, according to the granularity of the frequency domain resource, it can be determined that the information in the resource allocation domain is parsed into several bit positions, and the information of the frequency domain resource used by the terminal for communication can be obtained.
  • the MCS that communicates with the terminal is determined by the network device, and the granularity of the frequency domain resource used for communication is allocated to the terminal according to the determined MCS, and then the control information is sent to the terminal. Determining, by the network device, the granularity of the frequency domain resource used for communication by the network device according to the MCS domain of the control information, and parsing the resource allocation domain of the control information according to the granularity of the frequency domain resource, and determining The terminal is used for information of a frequency domain resource for communication. Therefore, the network device dynamically adjusts the granularity of the frequency domain resource used for communication to the terminal according to the MCS dynamically used by the network device.
  • the terminal obtains the granularity of the dynamically changed frequency domain resource by parsing the MCS domain, and then accurately Obtain information about the frequency domain resources used for communication.
  • the problem that the granularity of the frequency domain resource cannot be dynamically adjusted in the prior art causes the information of the frequency domain resource in the resource allocation domain to occupy more bit positions, thereby avoiding increasing the information size of the control channel and ensuring the reliability of the URLLC service. Sex.
  • FIG. 3 is a flowchart of a communication method according to another embodiment of the present disclosure. As shown in FIG. 3, the method in this embodiment may include:
  • the network device determines an MCS that communicates with the terminal.
  • the network device determines that the granularity of the frequency domain resource allocated for the communication is the first granularity; when the determined MCS belongs to the second MCS set, The network device determines that the granularity of the frequency domain resources allocated for communication to the terminal is the second granularity.
  • the first MCS set and the second MCS set are present, and the first MCS set includes at least one MCS, and the second MCS set also includes at least one MCS, and the intersection of the first MCS set and the second MCS set is an empty set.
  • the code rate corresponding to any one of the MCSs in the first MCS set is smaller than the code rate corresponding to any one of the MCSs in the second MCS set.
  • the coding rate corresponding to different MCSs may also be different. Generally, for the same modulation mode, the smaller the coding rate, the smaller the index of the MCS indicating the coding rate.
  • the coding code rate corresponding to the MCS may be considered to be smaller than the preset first coding rate.
  • the network device determines that the granularity of the frequency domain resource used for the communication is the first granularity; when the determined MCS belongs to the second MCS set, the coding code rate corresponding to the MCS may be considered to be greater than or equal to the preset first coding.
  • the code rate the network device determines that the granularity of the frequency domain resource allocated for communication to the terminal is the second granularity.
  • the smaller the code rate the more air interface resources are required. Accordingly, the more frequency domain resources are required, if smaller, the frequency domain resources are allocated. Granularity, then more bit position information is needed to indicate the location of the frequency domain resources allocated to the terminal, but if a larger granularity is used for allocation when allocating the frequency domain resources, fewer bit positions are needed. It is used to indicate the location of the frequency domain resource allocated to the terminal; therefore, using a higher granularity of the frequency domain resource for allocation, the location of the frequency domain resource allocated to the terminal can be indicated without increasing the bit position. Therefore, the first granularity in the embodiment is greater than the second granularity.
  • the network device when the determined MCS belongs to the first MCS set, the network device further determines that the first granularity includes N RBs; when the determined MCS belongs to the second MCS set, The network device also determines that the second granularity includes M RBs. Moreover, N is greater than M.
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain, and the information of the frequency domain resource having the first granularity occupies a part of the bit position in the resource allocation domain.
  • the network device sends control information to the terminal.
  • the terminal receives control information sent by the network device.
  • the network device transmits an index of the determined MCS to the terminal.
  • the index of the MCS may be sent to the terminal by using the foregoing control information, where the index of the MCS carrying the control information may include the following manner.
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain, and the information of the frequency domain resource having the first granularity occupies a part of the bit position in the resource allocation domain, Such as Q bit positions.
  • the network device further determines whether the determined MCS belongs to the third MCS set, where the third MCS set is a subset of the foregoing first MCS set, for example, the third MCS set is the first MCS set, or the first The three MCS sets are true subsets of the first MCS set.
  • the determined MCS belongs to the third MCS set, it indicates that the coding code rate corresponding to the MCS is less than or equal to the lowest coding rate corresponding to the MCS indicated by the MCS domain, indicating that the bit position in the MCS domain is insufficient for indicating the MCS.
  • Index and also indicates that the granularity of the frequency domain resource allocated for communication to the terminal is the first granularity, and at the first granularity, the bit position in the resource allocation domain is sufficient for indicating the location of the frequency domain resource allocated to the terminal,
  • the information indicating the frequency domain resource allocated for the terminal occupies a part of the bit position of the resource allocation domain, for example, Q bit positions, and the resource allocation field is redundant except for the bit position indicating the position of the frequency domain resource.
  • Bit position It can be seen that there are redundant bit positions in the resource allocation domain, but the insufficient bit positions in the MCS domain are used to indicate the index of the MCS. Therefore, the network device sends the index of the MCS to the terminal and occupies the preset K in the resource allocation domain. Bit position, the K being an integer greater than or equal to one.
  • a bit position other than the K bit positions in the resource allocation field is used to indicate information of a frequency domain resource, that is, a Q+K bit position is included in a resource allocation field, where K The bit position is used to indicate the index of the MCS, and the other Q bit positions are used to indicate information of the frequency domain resource.
  • the extra bit position in the resource allocation domain is used to indicate the index of the MCS, so that the bit position in the resource allocation domain is effectively utilized, and the MCS domain does not need to increase the bit position, thereby avoiding adding control information. the size of.
  • the MCS determined by the MCS does not belong to the third MCS set, it indicates that the coding code rate indicated by the MCS is greater than or equal to the lowest coding rate corresponding to the MCS indicated by the MCS domain, indicating that the bit position in the MCS domain is sufficient for indicating the
  • the index of the MCS also indicates that the index of the MCS does not occupy the bit position in the resource allocation domain. Then, the index of the MCS sent by the network device to the terminal occupies the MCS domain in the control information.
  • the index of the MCS occupies K bit positions of the resource allocation domain, and the bit position in the MCS domain no longer indicates the index of the MCS. Therefore, the network device fills a preset index in the MCS domain of the control information, where the preset index is used to indicate that an index of the determined MCS needs to be parsed from the resource allocation domain. For example, the preset index is index number 0 or the reserved MCS index number.
  • the terminal determines that the granularity of the frequency domain resource used by the network device to allocate the communication to the terminal is the first granularity; when the MCS When the index indicated by the domain belongs to the second MCS index set, the terminal determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to the second granularity.
  • the terminal can obtain an index indicated by the MCS domain according to the MCS domain in the analysis control information. And determining whether the index indicated by the obtained MCS domain belongs to the first MCS index set or the second MCS index set, and when the index indicated by the MCS domain belongs to the first MCS index set, the terminal determines that the network device sends the The granularity of the frequency domain resource allocated by the terminal for communication is a first granularity; when the index indicated by the MCS domain belongs to the second MCS index set, the terminal determines that the network device allocates the terminal for communication The granularity of the frequency domain resource is the second granularity.
  • any one of the first MCS index sets is smaller than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • the index indicated by the MCS domain belongs to the first MCS index set, it indicates that the index indicated by the MCS domain is smaller than (or less than or equal to) the preset first MCS index, and also indicates that the code rate is less than (or less than or equal to) the first pre-
  • the coding rate is determined, and the terminal determines that the granularity of the frequency domain resource allocated by the network device to the terminal for communication is coarse granularity, that is, the first granularity.
  • the index indicated by the MCS domain belongs to the second MCS index set, it indicates that the index indicated by the MCS domain is greater than or equal to (or greater than) the preset first MCS index, and also indicates that the code rate is greater than or equal to (or greater than) the first pre-
  • the coding rate is determined, and the terminal determines that the granularity of the frequency domain resource allocated by the network device to the terminal for communication is fine-grained, that is, the second granularity.
  • the terminal parses a resource allocation domain of the control information according to a granularity of the frequency domain resource, and determines information about a frequency domain resource used by the terminal for communication.
  • the terminal further determines an index of the MCS in communication with the network device based on the MCS domain.
  • the terminal in this embodiment may further determine the size of the TBS according to the obtained index of the MCS, and may also determine the coding rate.
  • the terminal parses the MCS field in the control information, obtains an index indicated by the MCS domain, and then determines whether the index indicated by the MCS domain belongs to the third MCS index set, where the third MCS index set is the foregoing A subset of the first MCS index set, for example, the third MCS index set is a true subset of the first MCS index set, or the third MCS index set is the first MCS index set itself.
  • the index of the MCS in the third MCS index set is less than (or less than or equal to) the preset second MCS index, and further indicates that the code rate is less than (or less than or equal to) the preset second code rate.
  • the preset second encoding code rate is less than or equal to the preset first encoding rate.
  • the preset second MCS index is less than or equal to the preset first MCS index. If the preset second MCS index is smaller than the preset first MCS index, the third MCS index set is the real part of the first MCS index set. If the preset second MCS index is equal to the preset first MCS index, the third MCS index set is the first MCS index set itself. In an embodiment, in the same modulation mode, a smaller MCS index corresponds to a smaller code rate, and a larger MCS index corresponds to a larger code rate.
  • the index indicated by the MCS domain may be pre-defined that when the index indicated by the MCS domain belongs to the third MCS index set, the index of the MCS occupies a preset K bit position in the resource allocation domain; and/or, the index indicated by the MCS domain is not When belonging to the third MCS index set, the index of the MCS occupies the MCS domain.
  • the index of the MCS is greater than or equal to the index of the MCS of the preset MCS index. Therefore, if the terminal interprets the MCS domain, the index of the MCS can be obtained, and the index of the MCS is greater than or equal to the preset second MCS index. Since the index of the MCS that is smaller than the preset second MCS index occupies the bit position of the resource allocation domain, the terminal first interprets the MCS domain and then interprets the resource allocation domain. Specifically, the K bit positions in the resource allocation domain are interpreted. An index of the MCS is obtained, and an index of the MCS is smaller than a preset second MCS index.
  • the information indicating that part of the bit position in the resource allocation domain is used to indicate the index of the MCS, and the terminal according to the preset K bit positions in the resource allocation domain
  • the information determines an index of the MCS that is in communication with the network device.
  • a bit position other than the K bit positions in the resource allocation field is used to indicate information of a frequency domain resource, for example, the resource allocation field includes a total of T bit positions, wherein the preset K bits
  • the terminal determines the index indicated by the MCS domain.
  • the index of the MCS in the third MCS index set is used to indicate that the index of the real MCS (ie, the index of the MCS employed by the terminal to communicate with the network device) occupies a bit position in the resource allocation domain, An index of the MCS that communicates with the network device needs to be resolved from the resource allocation domain. Therefore, when the terminal determines that the index indicated by the MCS domain belongs to the third MCS index set, the terminal determines, according to the index indicated by the MCS domain, that the network device needs to be parsed from the resource allocation domain.
  • the third MCS index set includes index 0.
  • the terminal when the terminal determines that the index indicated by the MCS domain belongs to the first MCS index set, the terminal further determines that the first granularity includes N RBs, and the terminal parses the resources in the control information according to the first granularity. Allocating information of the Q bit positions of the domain, determining information of the frequency domain resource used by the terminal for communication; and when the index indicated by the MCS field determined by the terminal belongs to the second MCS index set, the terminal further determines that the second granularity includes M RBs, the terminal parses all bit positions of the resource allocation domain according to the second granularity, and determines information of the frequency domain resources used by the terminal for communication. Where N is greater than M.
  • the index of the MCS in the fourth MCS index set is used to indicate that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to the first granularity.
  • the terminal further determines whether the index indicated by the MCS domain belongs to the fourth MCS index set, and when the index indicated by the MCS domain belongs to the fourth MCS index set, the terminal determines The granularity of the frequency domain resource allocated by the network device to the terminal for communication is a first granularity, wherein an intersection of the fourth MCS index set and the first MCS index set is an empty set, and the fourth MCS The intersection of the index set and the second MCS index is also an empty set.
  • the terminal may compare the index indicated by the MCS domain with the first MCS index set and the second MCS index set to determine that the network device gives The terminal allocates the granularity of the frequency domain resource used for the communication.
  • the terminal may compare the index indicated by the MCS domain with the first MCS index set and the second MCS index set to determine that the network device gives The terminal allocates the granularity of the frequency domain resource used for the communication.
  • the index of the MCS in the fourth MCS index set is used to indicate that the index of the real MCS occupies the bit position in the resource allocation domain, and needs to be preset from the K bit positions in the resource allocation domain.
  • the information that resolves the index of the MCS that communicates with the network device Therefore, when the terminal determines that the index indicated by the MCS domain belongs to the fourth MCS index set, the terminal determines, according to the information on the K bit positions preset in the resource allocation domain, the MCS that communicates with the network device. index of.
  • the fourth MCS index set includes a reserved MCS index number, such as index number 29 or 30 or 31, and the embodiment is not limited thereto.
  • the third MCS index set includes an index number 0, and the fourth MCS index set includes a reserved MCS index number as an example for illustration. That is, when the index indicated by the MCS field obtained by the terminal is index number 0, the index number 0 no longer indicates an MCS, but indicates that an index of the MCS needs to be parsed from the resource allocation domain, and therefore, the terminal The information of the preset K bit positions in the resource allocation domain is parsed, and the information obtained by the parsing is used as an index of the MCS. When the index indicated by the MCS field acquired by the terminal is the reserved MCS index number, the terminal may determine that the reserved MCS index number is not an index of the real MCS, and then parse the preset K bits in the resource allocation domain.
  • the location information will be parsed as the index of the MCS.
  • the index indicated by the MCS field obtained by the terminal is neither the index number 0 nor the reserved MCS index number, it indicates that the index indicated by the MCS domain is the index of the real MCS, and then the terminal indicates the index indicated by the MCS domain.
  • the index indicated by the MCS domain is the index of the real MCS, and then the terminal indicates the index indicated by the MCS domain.
  • the smaller the index of the MCS in the same modulation mode the smaller the coding rate is, but the larger the index of the MCS in the same modulation mode, the coding may be represented.
  • any one of the first MCS index sets is greater than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • the terminal determines that the granularity of the frequency domain resource allocated by the network device to the terminal for communication is coarse granularity, that is, the first granularity.
  • the index indicated by the MCS domain belongs to the second MCS index set, it indicates that the index indicated by the MCS domain is less than or equal to (or less than) the preset third MCS index, and also indicates that the code rate is greater than or equal to (or greater than) the first pre-
  • the coding rate is determined, and the terminal determines that the granularity of the frequency domain resource allocated by the network device to the terminal for communication is fine-grained, that is, the second granularity.
  • the determination of the granularity other further solutions are similar to the above description, and reference may be made to the description in the above embodiments, and details are not described herein again.
  • the MCS table shown in Table 1 may be referred to as a first MCS table.
  • index numbers 0-28 can be divided into a first MCS index set and a second MCS index set.
  • the index number 0 in Table 1 is divided into a third MCS index set, and the reserved MCS index number, that is, the index numbers 29, 30, and 31 are divided into fourth MCS index sets.
  • at least one index number after the index number 0 and the index number 0 may be divided into the first MCS index set, for example, the index numbers 0 and 1 are divided into the first MCS index set, or the index number is 0.
  • -2 is divided into a first MCS index set, which is not limited in this embodiment.
  • this embodiment divides the index number 0 into the first MCS index set, that is, the third MCS index set is the first MCS index set itself.
  • the table 1 is divided into three index sets, and the index number is 0 is the first MCS index set (ie, the third MCS index set), the index number 1-28 is the second MCS index set, and the reserved MCS index number (ie, index number 29-30) is the fourth MCS index set.
  • the terminal determines that the index indicated by the MCS domain is the index number 0
  • the terminal determines that the network device allocates the granularity of the frequency domain resource used for the communication to the terminal to the first granularity, and determines that the index number 0 is not used.
  • the index of the MCS that the terminal communicates with the network device and then the terminal parses the information of the K bit positions preset in the resource allocation domain to obtain an index of the MCS used by the terminal to communicate with the network device.
  • the terminal determines that the index number indicated by the MCS domain is an index of the MCS used by the terminal to communicate with the network device.
  • the terminal determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to be the first granularity. And determining that the index number 0 is not an index of the MCS used by the terminal to communicate with the network device, and then the terminal parses the information of the K bit positions preset in the resource allocation domain to obtain an index of the MCS used by the terminal to communicate with the network device. .
  • the index numbers 0-31 can be divided into a first MCS index set and a second MCS index set.
  • the reserved MCS index number that is, the index numbers 29, 30, and 31 are divided into the first MCS index set, and the index number 0-28 in the first table is divided into the second MCS index set.
  • the terminal determines that the index indicated by the MCS domain is any one of index numbers 29 to 31, the terminal determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to the first granularity, and Determining that the index indicated by the MCS domain is not an index of the MCS used by the terminal to communicate with the network device, and then the terminal parses the information of the preset K bit positions in the resource allocation domain to obtain an index of the MCS used by the terminal to communicate with the network device. .
  • the terminal determines that the index number indicated by the MCS field is an index of the MCS used by the terminal to communicate with the network device.
  • the terminal may search the pre-stored second MCS table according to the index to obtain the MCS that communicates with the network device.
  • the MCS indicated by each index in the second MCS table is different from the MCS indicated by each index in the first MCS table, or at most one is the same.
  • the first MCS table and the second MCS table in the present application may be specified by a standard, or the network device and the terminal negotiate with each other, and may be determined in other manners.
  • the application is not limited.
  • the terminal device looks up the pre-saved first MCS table to obtain the MCS with which it communicates with the network device.
  • the method or the step implemented by the terminal may also be implemented by a chip inside the terminal.
  • the method or step implemented by the network device may also be implemented by a chip inside the network device.
  • FIG. 4 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • the communication device in this embodiment may be a network device, or may be a chip inside the network device, including: a processing module 11 and a sending module. 12.
  • the processing module 11 is configured to determine an MCS that communicates with the terminal; and determine, according to the determined MCS, a granularity of the frequency domain resource allocated for the terminal for communication.
  • the sending module 12 is configured to send control information to the terminal, where the resource allocation domain of the control information carries information about a frequency domain resource allocated to the terminal, where a granularity of the allocated frequency resource is the determining Granularity.
  • the processing module 11 is specifically configured to: when the determined MCS belongs to the first MCS set, determine that the granularity of the frequency domain resource allocated for the terminal for communication is the first granularity; when the determined MCS belongs to When the second MCS is set, determining that the granularity of the frequency domain resource used for communication to the terminal is the second granularity;
  • the first granularity is greater than the second granularity, and any one of the first MCS sets is different from any one of the second MCS sets.
  • the sending module 12 is further configured to send the determined index of the MCS to the terminal.
  • the determined index of the MCS occupies a preset K bit positions in the resource allocation domain, where the K is an integer greater than or equal to 1.
  • the third MCS set is a subset of the first MCS set.
  • a bit position other than the K bit positions in the resource allocation field is used to indicate information of a frequency domain resource.
  • the processing module 11 is further configured to: when the determined MCS belongs to the first MCS set, determine that the first granularity includes N RBs; wherein the N is greater than M, the M The number of RBs in the second granularity;
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain.
  • the processing module 11 is further configured to: when the determined MCS belongs to the third MCS set, fill a preset index in an MCS field of the control information, where the preset index is used by The index indicating that the determined MCS needs to be parsed from the resource allocation domain is indicated.
  • the preset index is specifically an index number 0 or a reserved MCS index number.
  • the determined index of the MCS occupies an MCS field in the control information.
  • the network device described in this embodiment may be used to perform the technical solution executed by the network device/network device chip in the foregoing method embodiments, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the method embodiment. The corresponding description will not be repeated here.
  • FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the network device in this embodiment may include: a processor 21 and a transceiver 22.
  • the processor 21 is communicatively coupled to the transceiver 22.
  • the above sending module 12 can be the transceiver 22 in this embodiment.
  • transceiver 22 includes a transmitter and a receiver, and then transmission module 12 above may be a transmitter in transceiver 22.
  • the above processing module 11 can be embedded in the hardware 21 or in the processor 21 of the terminal.
  • the transceiver 22 may include a necessary radio frequency communication device such as a mixer.
  • the processor 21 may include a central processing unit (CPU), a digital signal processor (DSP), a microcontroller (Microcontroller Unit (MCU), and an application specific integrated circuit (ASIC). Or at least one of a Field-Programmable Gate Array (FPGA).
  • CPU central processing unit
  • DSP digital signal processor
  • MCU microcontroller
  • ASIC application specific integrated circuit
  • FPGA Field-Programmable Gate Array
  • the network device of this embodiment may further include a memory 23 for storing program instructions, and the processor 21 is configured to invoke program instructions in the memory 23 to execute the foregoing solution.
  • the program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solution of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically the processor 21, to execute the terminal in each embodiment of the present application. All or part of the steps.
  • the foregoing computer readable storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. The medium of the code.
  • the network device described in this embodiment may be used to implement the technical solution of the network device or its internal chip in the foregoing method embodiments of the present application, and the implementation principle and the technical effect are similar, and the function of each module may refer to the method embodiment. The corresponding description in the description will not be repeated here.
  • FIG. 6 is a schematic structural diagram of a chip of a network device according to an embodiment of the present disclosure.
  • the chip of the network device in this embodiment may include: a processor 31 and an input/output port 32.
  • the processor 31 is communicatively coupled to the input and output port 32.
  • the above sending module 12 may be the input and output port 32 in this embodiment.
  • the input and output port 32 includes an input port and an output port
  • the above transmitting module 12 may be an output port in the input and output port 32.
  • the above processing module 11 can be embedded in the hardware 31 or in the processor 31 of the chip.
  • the network device of this embodiment may further include a memory 33 for storing program instructions, and the processor 31 is configured to invoke program instructions in the memory 33 to execute the foregoing solution.
  • the chip of the network device described in this embodiment may be used to implement the technical solution of the network device or its internal chip in the foregoing method embodiments of the present application, and the implementation principle and the technical effect are similar, wherein the functions of each module may refer to the method. Corresponding descriptions in the embodiments are not described herein again.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • the communication device in this embodiment may be a terminal, or may be a chip inside the terminal, and includes: a receiving module 41 and a processing module 42.
  • the receiving module 41 is configured to receive control information sent by the network device, where the resource allocation domain of the control information carries information about a frequency domain resource allocated by the terminal.
  • the processing module 42 is configured to determine, according to the MCS domain of the control information, a granularity that the network device allocates a frequency domain resource for communication to the terminal, and the terminal parses the granularity according to the granularity of the frequency domain resource.
  • the resource allocation domain of the control information determines information of the frequency domain resource used by the terminal for communication.
  • the processing module 42 is specifically configured to: when the index indicated by the MCS domain belongs to the first MCS index set, determine, by the network device, the granularity of the frequency domain resource used for communication by the terminal. The first granularity is determined. When the index indicated by the MCS domain belongs to the second MCS index set, determining that the network device allocates the frequency domain resource for communication to the terminal is a second granularity.
  • the first granularity and the second granularity are different, and the intersection of the first MCS index set and the second MCS index set is an empty set.
  • any one of the first MCS index sets is smaller than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • processing module 42 is further configured to determine, according to the MCS domain, an index of an MCS used by the communications device to communicate with the network device.
  • processing module 42 is specifically configured to:
  • the index indicated by the MCS domain belongs to the third MCS index set, determining, according to the information on the K bit positions preset in the resource allocation domain, the communication for the communication device to communicate with the network device An index of the MCS, wherein the third MCS index set is a subset of the first MCS index set;
  • the index indicated by the MCS domain does not belong to the third MCS index set, determining that the index indicated by the MCS domain is an index of the MCS used by the communications device to communicate with the network device.
  • a bit position other than the K bit positions in the resource allocation field is used to indicate information of a frequency domain resource.
  • the processing module 42 is further configured to: when the index indicated by the MCS domain belongs to the first MCS index set, determine that the first granularity includes N RBs, where the N is greater than M, M is the number of RBs in the second granularity.
  • the information of the frequency domain resource having the second granularity occupies all the bit positions in the resource allocation domain.
  • the index indicated by the MCS domain belongs to the third MCS index set
  • the index indicated by the MCS domain is specifically used to indicate that the communication is used to resolve the communication from the resource allocation domain.
  • the third MCS index set includes an index of 0.
  • processing module 42 is specifically configured to:
  • the network device determines that the network device allocates the granularity of the frequency domain resource used for communication to the terminal to be a first granularity, where the fourth MCS index set is The intersection of the first MCS index set is an empty set, and the intersection of the fourth MCS index set and the second MCS index set is also an empty set.
  • the processing module 42 is further configured to: when the index indicated by the MCS belongs to the fourth MCS index set, determine according to information on K preset bit positions in the resource allocation domain.
  • any one of the first MCS index sets is greater than any one of the second MCS index sets, and the first granularity is greater than the second granularity.
  • the processing module 42 is further configured to: when the index indicated by the MCS belongs to the second MCS index set, according to the information on the preset K bit positions in the resource allocation domain, Determining an index of the MCS for the communication device to communicate with the network device.
  • the terminal described in this embodiment may be used to perform the technical solution of the terminal/terminal chip in the foregoing method embodiments, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the corresponding description in the method embodiment. , will not repeat them here.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • the terminal in this embodiment may include: a processor 51 and a transceiver 52.
  • the processor 51 is communicatively coupled to the transceiver 52.
  • the above receiving module 41 may be the transceiver 52 in this embodiment.
  • the transceiver 52 includes a transmitter and a receiver, and the above receiving module 41 can be a transmitter in the transceiver 52.
  • the above processing module 42 can be embedded in the hardware 51 or in the processor 51 of the terminal.
  • the transceiver 52 can include a necessary radio frequency communication device such as a mixer.
  • the processor 51 may include at least one of a CPU, a DSP, an MCU, an ASIC, or an FPGA.
  • the network device of this embodiment may further include a memory 53 for storing a program instruction, and the processor 51 is configured to invoke a program instruction in the memory 53 to execute the foregoing solution.
  • the program instructions may be implemented in the form of a software functional unit and can be sold or used as a standalone product, which may be any form of computer readable storage medium. Based on such understanding, all or part of the technical solution of the present application may be embodied in the form of a software product, including a plurality of instructions for causing a computer device, specifically the processor 51, to execute the terminal in each embodiment of the present application. All or part of the steps.
  • the aforementioned computer readable storage medium includes: a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.
  • the terminal described in this embodiment may be used to implement the technical solution of the terminal or its internal chip in the foregoing method embodiments of the present application, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the corresponding method embodiment. The description is not repeated here.
  • FIG. 9 is a schematic structural diagram of a chip of a terminal according to an embodiment of the present invention.
  • the chip of the terminal in this embodiment may include: a processor 61 and an input/output port 62.
  • the processor 61 is communicatively coupled to the input and output port 62.
  • the above receiving module 41 may be the input/output port 62 in this embodiment.
  • the input and output port 62 includes an input port and an output port, and the above receiving module 41 may be an input port in the input and output port 62.
  • the above processing module 42 can be embedded in hardware or in a processor 61 independent of the chip.
  • the network device of this embodiment may further include a memory 63 for storing program instructions, and the processor 61 is configured to invoke program instructions in the memory 63 to execute the foregoing solution.
  • the chip of the terminal described in this embodiment may be used to implement the technical solution of the terminal or its internal chip in the foregoing method embodiments of the present application, and the implementation principle and the technical effect are similar.
  • the function of each module may refer to the method embodiment. The corresponding description in the description will not be repeated here.
  • the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • the functional modules in the embodiments of the present application may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

Abstract

本申请提供一种通信方法和设备，此方法包括：网络设备确定与终端通信的MCS，根据该MCS确定给终端分配用于通信的频域资源的粒度，向终端发送控制信息。终端根据控制信息的MCS域，确定网络设备给终端分配用于通信的频域资源的粒度，根据频域资源的粒度，解析控制信息的资源分配域，确定终端用于通信的频域资源的信息。因此，网络设备根据与终端通信的MCS动态调整给终端分配用于通信的频域资源的粒度，终端根据MCS域来获知频域资源的粒度，以准确获得用于通信的频域资源的信息。解决了现有技术中资源分配域中频域资源的信息会占用更多的比特位置的问题，避免了增加控制信道的信息大小，保证了URLLC业务的可靠性。

Description

通信方法和设备
本申请要求于2017年08月11日提交中国专利局、申请号为201710687831.4、申请名称为“通信方法和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域，尤其涉及一种通信方法和设备。
背景技术
移动通信技术已经深刻地改变了人们的生活，但人们对更高性能的移动通信技术的追求从未停止。为了应对未来爆炸性的移动数据流量增长、海量移动通信的设备连接、不断涌现的各类新业务和应用场景，第五代(the fifth generation，5G)通信系统应运而生。国际电信联盟(international telecommunication union，ITU)为5G以及未来的通信系统定义了三大类应用场景：增强型移动宽带(enhanced mobile broadband，eMBB)、高可靠低时延通信(ultra reliable and low latency communications，URLLC)以及海量机器类通信(massive machine type communications，mMTC)。其中，URLLC业务对时延要求极高，不考虑可靠性的情况下，传输时延要求在0.5毫秒(millisecond，ms)以内；在达到99.999％的可靠性的前提下，传输时延要求在1ms以内。
在传输URLLC业务时，当物理信道的质量较差或者要求数据能够得到高可靠性的接收时，需要采用较多的物理资源和采用低的编码码率来传输URLLC业务的数据，而在传输URLLC业务时需要满足低时延的要求下，所以URLLC业务的传输时间较短，这样就造成需要在频域上分配更多的资源。如果仍采用现有技术中的资源分配粒度，这会造成用于指示分配的频域资源的指示信息会占用更多的比特位，也就是增加了控制信道的信息大小，增加了控制信道的信息大小会造成可靠性下降，进一步影响了URLLC业务的数据的可靠接收。
发明内容
本申请实施例提供一种通信方法和设备，用于避免增加控制信道的信息大小，保证URLLC业务的可靠性。
第一方面，本申请实施例提供一种通信方法，所述方法应用于网络设备，包括：
确定与终端通信的MCS；
根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度；
向所述终端发送控制信息，所述控制信息的资源分配域中携带为所述终端分配的频域资源的信息，其中，所述分配的频率资源的粒度为所述确定的粒度。
在一种可能的设计中，根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度，包括：
当确定的MCS属于第一MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第一粒度；
当确定的MCS属于第二MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第二粒度；
其中，第一粒度大于第二粒度，所述第一MCS集合中的任意一个MCS与所述第二MCS集合中的任意一个MCS不同。
在一种可能的设计中，所述方法还包括：向终端发送所述确定的MCS的索引。
在一种可能的设计中，在所述确定的MCS属于第三MCS集合时，所述确定的MCS的索引占用所述资源分配域中预设的K个比特位置，所述K为大于或等于1的整数，其中，所述第三MCS集合为所述第一MCS集合的子集。
在一种可能的设计中，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
在一种可能的设计中，所述方法还包括：在所述确定的MCS属于所述第一MCS集合时，确定所述第一粒度包括N个资源块(Resource Block，RB)；其中，所述N大于M，所述M为第二粒度中RB的数量；
其中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置。
在一种可能的设计中，所述方法还包括：
在所述确定的MCS属于所述第三MCS集合时，在所述控制信息的MCS域中填充预设的索引，所述预设的索引用于指示需从所述资源分配域中解析出所述确定的MCS的索引。
在一种可能的设计中，所述预设的索引具体为索引号0或者预留的MCS索引号。
在一种可能的设计中，在所述确定的MCS不属于第三MCS集合时，所述确定的MCS的索引占用所述控制信息中的MCS域。
第二方面，本申请实施例提供一种通信方法，所述方法应用于终端，包括：
接收网络设备发送的控制信息；所述控制信息的资源分配域携带为所述终端分配的频域资源的信息；
根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度；
根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。
在一种可能的设计中，所述根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度，包括：
当所述MCS域所指示的索引属于第一MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度；
当所述MCS域所指示的索引属于第二MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第二粒度；
其中，第一粒度和第二粒度不同，所述第一MCS索引集合和所述第二MCS索引 集合的交集为空集。
在一种可能的设计中，所述第一MCS索引集合中的任意一个MCS索引均小于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于第二粒度。
在一种可能的设计中，所述方法还包括：根据所述MCS域，确定用于所述终端与所述网络设备通信的MCS的索引。
在一种可能的设计中，所述根据所述MCS域，确定与所述网络设备通信的MCS的索引包括：
当所述MCS域所指示的索引属于第三MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述终端与所述网络设备通信的MCS的索引，其中，所述第三MCS索引集合是所述第一MCS索引集合的子集；
当所述MCS域所指示的索引不属于第三MCS索引集合时，所述MCS域所指示的索引即为与所述网络设备通信的MCS的索引。
在一种可能的设计中，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
在一种可能的设计中，所述方法还包括：
在所述MCS域所指示的索引属于第一MCS索引集合时，确定所述第一粒度包括N个RB；其中，所述N大于M，所述M为第二粒度中RB的数量；
其中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置。
在一种可能的设计中，当所述MCS域所指示的索引属于所述第三MCS索引集合时，所述MCS域所指示的索引具体用于指示从所述资源分配域中解析所述用于所述终端与网络设备通信的MCS的索引。
在一种可能的设计中，所述第三MCS索引集合包括索引0。
在一种可能的设计中，所述根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度，具体还包括：
当所述MCS域所指示的索引属于第四MCS索引集合，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度，其中，所述第四MCS索引集合与所述第一MCS索引集合的交集为空集，所述第四MCS索引集合与所述第二MCS索引集合的交集也为空集。
在一种可能的设计中，所述方法还包括：
当所述MCS所指示的索引属于所述第四MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述终端与所述网络设备通信的MCS的索引。
在一种可能的设计中，所述第一MCS索引集合中的任意一个MCS索引均大于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于所述第二粒度。
在一种可能的设计中，所述方法还包括：
当所述MCS所指示的索引属于所述第二MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息，确定所述用于所述终端与所述网络设备通信的MCS的索引。
第三方面，本申请实施例提供一种通信设备，包括：
处理模块，用于确定与终端通信的MCS；以及根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度；
发送模块，用于向所述终端发送控制信息，所述控制信息的资源分配域中携带为所述终端分配的频域资源的信息，其中，所述分配的频率资源的粒度为所述确定的粒度。
在一种可能的设计中，所述处理模块，具体用于：当确定的MCS属于第一MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第一粒度；当确定的MCS属于第二MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第二粒度；
其中，第一粒度大于第二粒度，所述第一MCS集合中的任意一个MCS与所述第二MCS集合中的任意一个MCS不同。
在一种可能的设计中，所述发送模块，还用于向终端发送所述确定的MCS的索引。
在一种可能的设计中，在所述确定的MCS属于第三MCS集合时，所述确定的MCS的索引占用所述资源分配域中预设的K个比特位置，所述K为大于或等于1的整数，其中，所述第三MCS集合为所述第一MCS集合的子集。
在一种可能的设计中，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
在一种可能的设计中，所述处理模块，还用于在所述确定的MCS属于所述第一MCS集合时，确定所述第一粒度包括N个RB；其中，所述N大于M，所述M为第二粒度中RB的数量；
其中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置。
在一种可能的设计中，所述处理模块，还用于在所述确定的MCS属于所述第三MCS集合时，在所述控制信息的MCS域中填充预设的索引，所述预设的索引用于指示需从所述资源分配域中解析出所述确定的MCS的索引。
在一种可能的设计中，所述预设的索引具体为索引号0或者预留的MCS索引号。
在一种可能的设计中，在所述确定的MCS不属于第三MCS集合时，所述确定的MCS的索引占用所述控制信息中的MCS域。
需要说明的是，上述第三方面的通信设备，可以是网络设备，也可以是网络设备内部的芯片。
第四方面，本申请实施例提供一种通信设备，包括：
接收模块，用于接收网络设备发送的控制信息；所述控制信息的资源分配域携带为所述终端分配的频域资源的信息；
处理模块，用于根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度；以及所述终端根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。
在一种可能的设计中，所述处理模块，具体用于：当所述MCS域所指示的索引属于第一MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度；当所述MCS域所指示的索引属于第二MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第二粒度；
其中，第一粒度和第二粒度不同，所述第一MCS索引集合和所述第二MCS索引 集合的交集为空集。
在一种可能的设计中，所述第一MCS索引集合中的任意一个MCS索引均小于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于第二粒度。
在一种可能的设计中，所述处理模块，还用于根据所述MCS域，确定用于所述通信设备与所述网络设备通信的MCS的索引。
在一种可能的设计中，所述处理模块，具体用于：
当所述MCS域所指示的索引属于第三MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述通信设备与所述网络设备通信的MCS的索引，其中，所述第三MCS索引集合是所述第一MCS索引集合的子集；
当所述MCS域所指示的索引不属于第三MCS索引集合时，确定所述MCS域所指示的索引为所述用于所述通信设备与所述网络设备通信的MCS的索引。
在一种可能的设计中，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
在一种可能的设计中，所述处理模块，还用于在所述MCS域所指示的索引属于第一MCS索引集合时，确定所述第一粒度包括N个RB；其中，所述N大于M，所述M为第二粒度中RB的数量；
其中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置。
在一种可能的设计中，当所述MCS域所指示的索引属于所述第三MCS索引集合时，所述MCS域所指示的索引具体用于指示从所述资源分配域中解析所述用于所述通信设备与网络设备通信的MCS的索引。
在一种可能的设计中，所述第三MCS索引集合包括索引0。
在一种可能的设计中，所述处理模块，具体用于：
当所述MCS域所指示的索引属于第四MCS索引集合，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度，其中，所述第四MCS索引集合与所述第一MCS索引集合的交集为空集，所述第四MCS索引集合与所述第二MCS索引集合的交集也为空集。
在一种可能的设计中，所述处理模块，还用于：当所述MCS所指示的索引属于所述第四MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述通信设备与所述网络设备通信的MCS的索引。
在一种可能的设计中，所述第一MCS索引集合中的任意一个MCS索引均大于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于所述第二粒度。
在一种可能的设计中，所述处理模块，还用于：当所述MCS所指示的索引属于所述第二MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息，确定所述用于所述通信设备与所述网络设备通信的MCS的索引。
需要说明的是，上述第四方面的通信设备，可以是终端，也可以是终端内部的芯片。
第五方面，本申请实施例提供一种网络设备，包括：处理器和收发机；处理器和收发机用于执行第一方面本申请实施例任一所述的通信方法。
第六方面，本申请实施例提供一种终端，包括：处理器和收发机；处理器和收发 机用于执行第二方面本申请实施例任一所述的通信方法。
第七方面，本申请实施例提供一种存储介质，包括：可读存储介质和计算机程序，所述计算机程序用于实现如本申请第一方面提供的通信方法。
第八方面，本申请实施例提供一种存储介质，包括：可读存储介质和计算机程序，所述计算机程序用于实现如本申请第二方面提供的通信方法。
第九方面，本申请实施例提供一种程序产品，所述程序产品包括计算机程序，所述计算机程序存储在可读存储介质中，通信设备的至少一个处理器可以从所述可读存储介质读取所述计算机程序，所述至少一个处理器执行所述计算机程序使得通信设备实施本申请第一方面提供的通信方法。
第十方面，本申请实施例提供一种程序产品，所述程序产品包括计算机程序，所述计算机程序存储在可读存储介质中，通信设备的至少一个处理器可以从所述可读存储介质读取所述计算机程序，所述至少一个处理器执行所述计算机程序使得通信设备实施本申请第二方面提供的通信方法。
本申请实施例提供的通信方法和设备，通过网络设备确定与终端通信的MCS，根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度，然后向所述终端发送控制信息。终端根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度，根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。因此，网络设备根据与终端通信的MCS动态调整给终端分配用于通信的频域资源的粒度，相应地，终端通过解析MCS域来获知动态变化后的频域资源的粒度，进而准确获得用于通信的频域资源的信息。解决了在现有技术中无法动态调整频域资源的粒度而造成资源分配域中频域资源的信息会占用更多的比特位置的问题，避免了增加控制信道的信息大小，保证了URLLC业务的可靠性。
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图1是本申请实施例应用的通信系统的架构示意图；
图2为本申请一实施例提供的通信方法的流程图；
图3为本申请另一实施例提供的通信方法的流程图；
图4为本申请一实施例提供的通信设备的结构示意图；
图5为本申请一实施例提供的网络设备的结构示意图；
图6为本申请一实施例提供的网络设备的芯片的结构示意图；
图7为本申请一实施例提供的通信设备的结构示意图；
图8为本申请一实施例提供的终端的结构示意图；
图9为本申请一实施例提供的终端的芯片的结构示意图。
具体实施方式
图1是本申请实施例应用的通信系统的架构示意图。如图1所示，该通信系统包括网络设备和至少一个终端，该网络设备例如包括无线接入网设备。终端通过无线的 方式与无线接入网设备相连，无线接入网设备通过无线或有线方式与核心网设备连接。核心网设备与无线接入网设备可以是独立的不同的物理设备，也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上，还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端可以是固定位置的，也可以是可移动的。图1只是示意图，该通信系统中还可以包括其它网络设备，如还可以包括无线中继设备和无线回传设备，在图1中未画出。本申请的实施例对该通信系统中包括的核心网设备、无线接入网设备和终端的数量不做限定。
无线接入网设备是终端通过无线方式接入到该通信系统中的网络设备，可以是基站NodeB、演进型基站eNodeB、5G通信系统中的基站、未来通信系统中的基站或WiFi系统中的接入节点等，本申请的实施例对该网络设备所采用的具体技术和具体设备形态不做限定。
终端也可以称为终端(Terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。终端可以是手机(mobile phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality，VR)终端、增强现实(Augmented Reality，AR)终端、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。
无线接入网设备和终端可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和人造卫星上。本申请的实施例对无线接入网设备和终端的应用场景不做限定。
本申请的实施例可以适用于下行信号传输，也可以适用于上行信号传输，还可以适用于设备到设备(device to device，D2D)的信号传输。对于下行信号传输，发送设备是无线接入网设备，对应的接收设备是终端。对于上行信号传输，发送设备是终端，对应的接收设备是无线接入网设备。对于D2D的信号传输，发送设备是终端，对应的接收设备也是终端。本申请的实施例对信号的传输方向不做限定。
无线接入网设备和终端之间以及终端和终端之间可以通过授权频谱(licensed spectrum)进行通信，也可以通过免授权频谱(unlicensed spectrum)进行通信，也可以同时通过授权频谱和免授权频谱进行通信。无线接入网设备和终端之间以及终端和终端之间可以通过6吉兆赫(gigahertz，GHz)以下的频谱进行通信，也可以通过6GHz以上的频谱进行通信，还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线接入网设备和终端之间所使用的频谱资源不做限定。
图2为本申请一实施例提供的通信方法的流程图，如图2所示，本实施例的方法可以包括：
S201、网络设备确定与终端通信的MCS。
本实施例中，MCS包含了编码码率信息和调制方式信息，网络设备例如可以根据终端上报的CQI(例如噪声比条件、终端发送的数据、终端对接收可靠性要求等)等，确定网络设备与终端通信的MCS。网络设备与终端通信的MCS既可以是用于上行通 信的MCS，也可以是用于下行通信的MCS，还可以包括二者。
S202、网络设备根据确定的MCS，确定给所述终端分配用于通信的频域资源的粒度。
本实施例中，网络设备根据确定的MCS确定频域资源的粒度，该频域资源是指示网络设备给终端分配用于通信的频域资源。例如：可以是不同的MCS对应不同的频域资源的粒度，或者，可以是不同组的MCS对应不同的频域资源的粒度，每组MCS包括至少一种MCS，本实施例对此不做限定。其中，该频域资源的粒度表示给终端分配用于通信的单位频域资源的大小。
其中，上述的频域资源的粒度可以为资源块组(Resource block group，RBG)，也就是网络设备以资源块组为单位为终端分配用于通信的频域资源，每个RBG由P个RB组成，P为大于或等于1的整数。或者，
上述的频域资源的粒度可以为
Figure PCTCN2018099632-appb-000001
有关
Figure PCTCN2018099632-appb-000002
的说明可以参见现有技术中的相关描述，此处不再赘述。
S203、所述网络设备向所述终端发送控制信息。终端接收网络设备发送的控制信息。
本实施例中，网络设备根据上述确定的频域资源的粒度，确定为终端分配的频域资源，而且为终端分配的频域资源的粒度即为S202中确定的粒度。然后网络设备需要告知终端其为终端分配的频域资源，即所述粒度对应的哪些频域资源分配给终端了。因此，本实施例的网络设备向终端发送控制信息，其中，该控制信息例如是下行控制信息(Downlink Control Information，DCI)，该控制信息中包括资源分配域，该资源分配域中携带了为该终端分配的频域资源的信息，该信息例如是该频域资源的位置信息。
相应地，终端接收网络设备发送的控制信息。
S204、所述终端根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度。
本实施例中，上述网络设备发送的控制信息中包括MCS域，终端通过解析控制信息的MCS域来获得MCS，由于网络设备为终端分配用于通信的频域资源的粒度，是网络设备根据MCS确定的，因此，终端可以基于MCS域指示的MCS，确定网络设备给终端分配用于通信的频域资源的粒度。
S205、所述终端根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。
本实施例中，终端根据S204中确定的频域资源的粒度，去解析控制信息的资源分配域，从而获得资源分配域中携带的终端用于通信的频域资源的信息。例如：频域资源的粒度越大，获取频域资源的信息所需解析控制信息的资源分配域中的比特位置越少。以频域资源的粒度为RBG为例，系统带宽中包括100个RB，如果RBG(即频域资源的粒度)为10个RB，则系统带宽划分为10个RBG，相应地需要资源分配域中10个比特位置的信息指示终端用于通信的频域资源的信息，例如若第1个比特位置的信息为1，则说明第1个RBG为终端用于通信的频域资源，若第1个比特位置的信息为0，则说明第1个RBG不是终端用于通信的频域资源。如果RBG(即频域资源的粒 度)为20个RB，则系统带宽划分为5个RBG，相应地需要资源分配域中5个比特位置的信息指示终端用于通信的频域资源的信息。因此，根据频域资源的粒度，可以确定去资源分配域中解析几个比特位置的信息，就可以获得终端用于通信的频域资源的信息。
本实施例中，通过网络设备确定与终端通信的MCS，根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度，然后向所述终端发送控制信息。终端根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度，根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。因此，网络设备根据其与终端通信所采用的MCS动态调整给终端分配用于通信的频域资源的粒度，相应地，终端通过解析MCS域来获知动态变化后的频域资源的粒度，进而准确获得用于通信的频域资源的信息。解决了在现有技术中无法动态调整频域资源的粒度而造成资源分配域中频域资源的信息会占用更多的比特位置的问题，避免了增加控制信道的信息大小，保证了URLLC业务的可靠性。
图3为本申请另一实施例提供的通信方法的流程图，如图3所示，本实施例的方法可以包括：
S301、网络设备确定与终端通信的MCS。
本实施例中，S301的具体实现过程可以参见图2所示实施例中的相关描述，此处不再赘述。
S302、当确定的MCS属于第一MCS集合时，所述网络设备确定给所述终端分配用于通信的频域资源的粒度为第一粒度；当确定的MCS属于第二MCS集合时，所述网络设备确定给所述终端分配用于通信的频域资源的粒度为第二粒度。
本实施例中存在第一MCS集合和第二MCS集合，而且第一MCS集合包括至少一个MCS，第二MCS集合也包括至少一个MCS，第一MCS集合与第二MCS集合的交集为空集。在一实施例中，第一MCS集合中的任意一个MCS对应的码率均小于第二MCS集合中的任意一个MCS所对应的码率。其中，不同的MCS对应的编码码率也可以不相同，一般而言，对于相同的调制方式，编码码率越小，指示该编码码率的MCS的索引也会越小。在网络设备确定MCS之后，确定该MCS属于第一MCS集合还是第二MCS集合，当确定的MCS属于第一MCS集合时，也可以认为该MCS对应的编码码率小于预设第一编码码率，网络设备确定给该终端分配用于通信的频域资源的粒度为第一粒度；当确定的MCS属于第二MCS集合时，也可以认为该MCS对应的编码码率大于等于预设第一编码码率，网络设备确定给该终端分配用于通信的频域资源的粒度为第二粒度。
针对同一个传输块，在相同的调制方式下，编码码率越小，表示所需的空口资源越多，相应地，所需的频域资源越多，如果在分配频域资源时采用较小的粒度，则需要较多的比特位置的信息用于指示分配给终端的频域资源的位置，但如果在分配频域资源时采用较大的粒度的用于分配，则需要较少的比特位置用于指示分配给终端的频域资源的位置；因此采用更高的粒度的频域资源用于分配，则可以无需增加比特位置，就可以指示分配给终端的频域资源的位置。因此，本实施例中的上述第一粒度大于第二粒度。
在一些实施例中，在所述确定的MCS属于第一MCS集合时，所述网络设备还确定所述第一粒度包括N个RB；在所述确定的MCS属于第二MCS集合时，所述网络设备还确定第二粒度包括M个RB。而且，N大于M。其中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置，具有第一粒度的频域资源的信息占用所述资源分配域中的部分比特位置。
S303、所述网络设备向所述终端发送控制信息。终端接收网络设备发送的控制信息。
本实施例中，S303的具体实现过程可以参见图2所示实施例中的相关描述，此处不再赘述。
在一些实施例中，网络设备向终端发送上述确定的MCS的索引。其中，该MCS的索引可以通过上述控制信息发送给终端，其中，控制信息中携带该MCS的索引可以包括如下方式。
在一些实施方式中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置，具有第一粒度的频域资源的信息占用所述资源分配域中的部分比特位置，如Q个比特位置。网络设备还确定上述确定的MCS是否属于第三MCS集合，其中，该第三MCS集合为上述第一MCS集合的子集，例如：该第三MCS集合即为第一MCS集合，或者，该第三MCS集合为该第一MCS集合的真子集。
当上述确定的MCS属于第三MCS集合时，表示该MCS对应的编码码率小于等于MCS域所指示的MCS所对应的的最低编码码率，说明MCS域中的比特位置不够用于指示该MCS的索引，而且还表示给终端分配用于通信的频域资源的粒度为第一粒度，在第一粒度下，资源分配域中的比特位置足够用于指示给终端分配的频域资源的位置，说明为终端分配的频域资源的信息占用了资源分配域的部分比特位置，例如Q个比特位置，该资源分配域除了用于指示该频域资源的位置的比特位置之外，还会有多余的比特位置。由此可知，资源分配域中存在多余的比特位置，但是MCS域中不够比特位置用于指示MCS的索引，因此，网络设备向终端发送该MCS的索引占用该资源分配域中预设的K个比特位置，所述K为大于或等于1的整数。在一些实施例中，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息，即资源分配域中包括Q+K个比特位置，其中，K个比特位置用于指示MCS的索引，另外Q个比特位置用于指示频域资源的信息。因此，本实施例将资源分配域中多余的比特位置用于指示该MCS的索引，使得资源分配域中的比特位置得到有效的利用，而且MCS域也无需再增加比特位置，避免了增加控制信息的大小。
当上述确定的MCS不属于第三MCS集合时，表示该MCS指示的编码码率大于或等于MCS域所指示的MCS所对应的最低编码码率，说明MCS域中的比特位置足够用于指示该MCS的索引，也表示该MCS的索引不占用资源分配域中的比特位置。则网络设备向终端发送的该MCS的索引占用该控制信息中的MCS域。
在一些实施例中，在网络设备确定的MCS属于所述第三MCS集合时，该MCS的索引占用资源分配域的K个比特位置，而MCS域中的比特位置不再指示该MCS的索引，因此，所述网络设备在所述控制信息的MCS域中填充预设的索引，所述预设的索引用于指示需从所述资源分配域中解析出所述确定的MCS的索引。例如：该预设的 索引为索引号0或者预留的MCS索引号。
S304、当所述MCS域所指示的索引属于第一MCS索引集合时，所述终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度；当所述MCS域所指示的索引属于第二MCS索引集合时，所述终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第二粒度。
本实施例中，终端根据解析控制信息中的MCS域，可以获得MCS域所指示的索引。然后确定获得的MCS域所指示的索引属于第一MCS索引集合还是属于第二MCS索引集合，当MCS域所指示的索引属于第一MCS索引集合时，所述终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度；当所述MCS域所指示的索引属于第二MCS索引集合时，所述终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第二粒度。
在一些实施例中，所述第一MCS索引集合中的任意一个MCS索引均小于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于第二粒度。
当MCS域所指示的索引属于第一MCS索引集合时，表示MCS域所指示的索引小于(或者小于等于)预设第一MCS索引，而且还表示编码码率小于(或者小于等于)第一预设编码码率，终端确定网络设备给终端分配用于通信的频域资源的粒度为粗粒度，也就是第一粒度。当MCS域所指示的索引属于第二MCS索引集合时，表示MCS域所指示的索引大于等于(或者大于)预设第一MCS索引，而且还表示编码码率大于等于(或者大于)第一预设编码码率，终端确定网络设备给终端分配用于通信的频域资源的粒度为细粒度，也就是第二粒度。
S305、所述终端根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。
本实施例中，S305的具体实现过程可以参见图2所示实施例的相关描述，此处不再赘述。
在一些实施例中，终端还根据该MCS域，确定与网络设备通信的MCS的索引。另外，本实施例的终端还可以根据获得的MCS的索引，确定TBS的大小，还可以确定编码码率，具体实现过程与现有技术类似，此处不再赘述。
其中，终端如何确定MCS的索引存在如下方式。
在一些实施方式中，终端解析控制信息中的MCS域，可以获得MCS域所指示的索引，然后确定该MCS域指示的索引是否属于第三MCS索引集合，其中，该第三MCS索引集合为上述第一MCS索引集合的子集，例如：该第三MCS索引集合为该第一MCS索引集合的真子集，或者，该第三MCS索引集合为该第一MCS索引集合本身。在一些实施例中，该第三MCS索引集合中的MCS的索引小于(或者小于等于)预设第二MCS索引，而且还表示编码码率小于(或者小于等于)预设第二编码码率，预设第二编码码率小于或等于预设第一编码码率。其中，该预设第二MCS索引小于或等于上述预设第一MCS索引，如果该预设第二MCS索引小于预设第一MCS索引，则第三MCS索引集合为第一MCS索引集合的真子集，如果该预设第二MCS索引等于预设第一MCS索引，则第三MCS索引集合为该第一MCS索引集合本身。在一实施例中，在相同的调制方式下，较小的MCS索引对应的编码码率较小，较大的MCS 索引对应的编码码率较大。
本实施例中，可以预先规定了，MCS域指示的索引属于第三MCS索引集合时，该MCS的索引占用资源分配域中预设的K个比特位置；和/或，MCS域指示的索引不属于第三MCS索引集合时，该MCS的索引占用MCS域。
由于大于等于预设第二MCS索引的该MCS的索引占用MCS域的比特位置，因此，终端解读MCS域，就可以获得该MCS的索引，该MCS的索引大于等于预设第二MCS索引。由于小于预设第二MCS索引的该MCS的索引占用资源分配域的比特位置，因此，终端先解读MCS域再解读资源分配域，具体地，解读资源分配域中的K个比特位置，就可以获得该MCS的索引，该MCS的索引小于预设第二MCS索引。
当终端确定该MCS域指示的索引属于第三MCS索引集合时，说明资源分配域中有部分比特位置的信息用于指示MCS的索引，终端根据资源分配域中预设的K个比特位置上的信息确定与所述网络设备通信的MCS的索引。在一些实施例中，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息，例如资源分配域共包括T个比特位置，其中预设的K个比特位置用于指示MCS的索引，相应地，Q个比特位置用于指示为终端分配的频域资源的信息，该Q＝T-K。因此，本实施例中利用于资源分配域中空闲的比特位置用于指示MCS的索引，无需增加MCS域的比特位置，进而避免了增加控制信息的大小。
当该MCS域指示的索引不属于第三MCS索引集合时，说明MCS的索引占用了MCS域，而且资源分配域中没有比特位置用于指示MCS的索引，终端确定所述MCS域所指示的索引为用于终端与所述网络设备通信的MCS的索引。
在一些实施例中，第三MCS索引集合中的MCS的索引用于指示真正的MCS的索引(即终端与所述网络设备通信所采用的MCS的索引)占用了资源分配域中的比特位置，需从所述资源分配域中解析与网络设备通信的MCS的索引。因此，当终端确定所述MCS域所指示的索引属于所述第三MCS索引集合时，终端根据所述MCS域所指示的索引，确定需要从所述资源分配域中解析所述与网络设备通信的MCS的索引。可选地，该第三MCS索引集合包括索引0。
在一些实施例中，在终端确定所述MCS域指示的索引属于第一MCS索引集合时，所述终端还确定所述第一粒度包括N个RB，终端根据第一粒度，解析控制信息中资源分配域的Q个比特位置的信息，确定终端用于通信的频域资源的信息；在终端确定的所述MCS域指示的索引属于第二MCS索引集合时，所述终端还确定第二粒度包括M个RB，所述终端根据第二粒度，解析资源分配域的所有比特位置，确定终端用于通信的频域资源的信息。其中，N大于M。
在上述各实施例的基础上，在一些实施例中，第四MCS索引集合中的MCS的索引用于指示网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度。终端确定所述MCS域所指示的索引之后，还确定该MCS域所指示的索引是否属于第四MCS索引集合，当该MCS域所指示的索引属于第四MCS索引集合时，所述终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度，其中，所述第四MCS索引集合与所述第一MCS索引集合的交集为空集，所述第四MCS索引集合与所述第二MCS索引结合的交集也为空集。可选地，当所述MCS域指示的索引不属于第 四MCS索引集合时，终端可以将该MCS域指示的索引与第一MCS索引集合，第二MCS索引集合进行比较，以确定网络设备给所述终端分配用于通信的频域资源的粒度，具体实现过程可以参见上述描述，此处不再赘述。
在一些实施例中，第四MCS索引集合中的MCS的索引用于指示真正的MCS的索引占用了资源分配域中的比特位置，需从所述资源分配域中预设的K个比特位置上的信息，解析与网络设备通信的MCS的索引。因此，当终端确定所述MCS域所指示的索引属于所述第四MCS索引集合时，终端根据所述资源分配域中预设的K个比特位置上的信息确定与所述网络设备通信的MCS的索引。可选地，该第四MCS索引集合包括预留的MCS索引号，例如索引号29或30或31，本实施例并不限于此。
以第三MCS索引集合包括索引号0，上述第四MCS索引集合包括预留的MCS索引号为例进行举例说明。也就是，当终端获得的MCS域所指示的索引为索引号0时，该索引号0不再指示一种MCS，而是指示需从所述资源分配域中解析出MCS的索引，因此，终端解析资源分配域中预设的K个比特位置的信息，将解析获得的信息作为MCS的索引。当终端获取的MCS域所指示的索引为预留的MCS索引号时，终端可以确定该预留的MCS索引号并不是真正的MCS的索引，然后再解析资源分配域中预设的K个比特位置的信息，将解析获得的信息作为MCS的索引。当终端获得的MCS域所指示的索引既不是索引号0也不是预留的MCS索引号，则说明该MCS域所指示的索引就是真正的MCS的索引，然后终端将该MCS域所指示的索引作为该MCS的索引。
另外，在上述实施例中，主要是以在相同的调制方式下MCS的索引越小，来表示编码码率越小，但是也可以以在相同的调制方式下MCS的索引越大，来表示编码码率越小。在另一些实施例中，所述第一MCS索引集合中的任意一个MCS索引均大于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于所述第二粒度。
在一些实施例中，当MCS域所指示的索引属于第一MCS索引集合时，表示MCS域所指示的索引大于(或者大于等于)预设第三MCS索引，而且还表示编码码率小于(或者小于等于)第一预设编码码率，终端确定网络设备给终端分配用于通信的频域资源的粒度为粗粒度，也就是第一粒度。当MCS域所指示的索引属于第二MCS索引集合时，表示MCS域所指示的索引小于等于(或者小于)预设第三MCS索引，而且还表示编码码率大于等于(或者大于)第一预设编码码率，终端确定网络设备给终端分配用于通信的频域资源的粒度为细粒度，也就是第二粒度。在该判断粒度的情况下，其它进一步的方案与上述的描述方案类似，可以参见上述各实施例中的记载，此处不再赘述。
下面为以表格的形式示出MCS索引的例子，如表一所示，结合表一对实施方案进行描述。在申请中，表一所示的MCS表格可以被称之为第一MCS表格。
表一
Figure PCTCN2018099632-appb-000003
Figure PCTCN2018099632-appb-000004
在一些实施例中，基于表一所示的MCS的索引列表，可以将索引号0-28分为第一MCS索引集合和第二MCS索引集合。其中，将表一中的索引号0划分为第三MCS索引集合，将预留的MCS索引号，也即将索引号29、30、31划分为第四MCS索引集合。本实施例中，可以将索引号0以及索引号0以后的至少一个索引号划分为第一MCS索引集合，例如；将索引号0和1划分为第一MCS索引集合，或者，将索引号0-2划分为第一MCS索引集合，本实施例对此不做限定。为了描述方便，本实施例以将索引号0划分为第一MCS索引集合，即第三MCS索引集合为第一MCS索引集合本身，此时可以认为将表一划分为三个索引集合，索引号0为第一MCS索引集合(即第三MCS索引集合)，索引号1-28为第二MCS索引集合，预留的MCS索引号(即 索引号29-30)为第四MCS索引集合。
当终端确定MCS域所指示的索引为索引号0时，则终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度，并且确定该索引号0并不是用于终端与网络设备通信的MCS的索引，然后终端解析资源分配域中预设的K个比特位置的信息，获得用于终端与网络设备通信的MCS的索引。当终端确定的MCS域所指示的索引号为索引号1到28中的任一个索引号时，则终端确定该MCS域所指示的索引号为用于终端与网络设备通信的MCS的索引。当终端确定的MCS域所示的索引号为索引号29到31中的任一个索引号时，则终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度，并且确定该索引号0并不是用于终端与网络设备通信的MCS的索引，然后终端解析资源分配域中预设的K个比特位置的信息，获得用于终端与网络设备通信的MCS的索引。
在一些实施例中，基于表一所示的MCS的索引列表，可以将索引号0-31分为第一MCS索引集合和第二MCS索引集合。其中，将预留的MCS索引号，也即将索引号29、30、31划分为第一MCS索引集合，将表一中的索引号0-28划分为第二MCS索引集合。
当终端确定MCS域所指示的索引为索引号29到31中的任一个索引号时，则终端确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度，并且确定MCS域所指示的索引并不是用于终端与网络设备通信的MCS的索引，然后终端解析资源分配域中预设的K个比特位置的信息，获得用于终端与网络设备通信的MCS的索引。当终端确定的MCS域所指示的索引号为索引号0到28中的任一个索引号时，则终端确定该MCS域所指示的索引号为用于终端与网络设备通信的MCS的索引。
当用于终端与网络设备同行的MCS的索引从资源分配域中解析获得时，终端可以根据该索引去查找预先保存的第二MCS表格获得其与网络设备通信的MCS。其中，第二MCS表格中各个索引所指示的MCS和第一MCS表格中的各个索引所指示的MCS不一样，或者最多只有一个是样的。在本申请第一MCS表格和第二MCS表格可以是由标准规定的，或者网络设备和终端相互协商确定的，也可以有其它方式确定。至于所述第一MCS表格和所述第二MCS表格如何确定，以及表格中各个参数在不同索引下的取值，本申请均不作限定。
当用于终端与网络设备通信的MCS的索引从MCS域中解析获得时，终端设备查找预先保存的第一MCS表格获得其与网络设备通信的MCS。
可以理解的是，上述各个实施例中，由终端实现的方法或步骤，也可以是由终端内部的芯片实现的。由网络设备实现的方法或者步骤，也可以是由网络设备内部的芯片实现的。
图4为本申请一实施例提供的通信设备的结构示意图，如图4所示，本实施例的通信设备可以为网络设备，也可以为网络设备内部的芯片，包括：处理模块11和发送模块12。
处理模块11，用于确定与终端通信的MCS；以及根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度。
发送模块12，用于向所述终端发送控制信息，所述控制信息的资源分配域中携带 为所述终端分配的频域资源的信息，其中，所述分配的频率资源的粒度为所述确定的粒度。
可选的，所述处理模块11，具体用于：当确定的MCS属于第一MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第一粒度；当确定的MCS属于第二MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第二粒度；
其中，第一粒度大于第二粒度，所述第一MCS集合中的任意一个MCS与所述第二MCS集合中的任意一个MCS均不相同。
可选的，所述发送模块12，还用于向终端发送所述确定的MCS的索引。
可选的，在所述确定的MCS属于第三MCS集合时，所述确定的MCS的索引占用所述资源分配域中预设的K个比特位置，所述K为大于或等于1的整数，其中，所述第三MCS集合为所述第一MCS集合的子集。
可选的，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
可选的，所述处理模块11，还用于在所述确定的MCS属于所述第一MCS集合时，确定所述第一粒度包括N个RB；其中，所述N大于M，所述M为第二粒度中RB的数量；
其中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置。
可选的，所述处理模块11，还用于在所述确定的MCS属于所述第三MCS集合时，在所述控制信息的MCS域中填充预设的索引，所述预设的索引用于指示需从所述资源分配域中解析出所述确定的MCS的索引。
可选的，所述预设的索引具体为索引号0或者预留的MCS索引号。
可选的，在所述确定的MCS不属于第三MCS集合时，所述确定的MCS的索引占用所述控制信息中的MCS域。
本实施例以上所述的网络设备，可以用于执行上述各方法实施例中网络设备/网络设备芯片执行的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图5为本申请一实施例提供的网络设备的结构示意图，如图5所示，本实施例的网络设备可以包括：处理器21和收发机22。处理器21与收发机22通信连接。
在硬件实现上，以上发送模块12可以是本实施例中的收发机22。或者，收发机22包括发射器和接收机，则以上发送模块12可以为收发机22中的发射器。以上处理模块11可以以硬件形式内嵌于或独立于终端的处理器21中。
所述收发机22可以包括混频器等必要的射频通信器件。所述处理器21可以包括中央处理单元(Central Processing Unit，CPU)、数字信号处理器(digital signal processor，DSP)、微控制器(Microcontroller Unit，MCU)、专用集成电路(Application Specific Integrated Circuit，ASIC)或现场可编程逻辑门阵列(Field－Programmable Gate Array，FPGA)中的至少一个。
可选地，本实施例的网络设备还可以包括存储器23，存储器23用于存储程序指令，处理器21用于调用存储器23中的程序指令执行上述方案。
所述程序指令可以以软件功能单元的形式实现并能够作为独立的产品销售或使用， 所述存储器23可以是任意形式的计算机可读取存储介质。基于这样的理解，本申请的技术方案的全部或部分可以以软件产品的形式体现出来，包括若干指令用以使得一台计算机设备，具体可以是处理器21，来执行本申请各个实施例中终端的全部或部分步骤。而前述的计算机可读存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
本实施例以上所述的网络设备，可以用于执行本申请上述各方法实施例中网络设备或其内部芯片的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图6为本申请一实施例提供的网络设备的芯片的结构示意图，如图6所示，本实施例的网络设备的芯片可以包括：处理器31和输入输出端口32。处理器31与输入输出端口32通信连接。
在硬件实现上，以上发送模块12可以是本实施例中的输入输出端口32。或者，输入输出端口32包括输入端口和输出端口，则以上发送模块12可以为输入输出端口32中的输出端口。以上处理模块11可以以硬件形式内嵌于或独立于芯片的处理器31中。
可选地，本实施例的网络设备还可以包括存储器33，存储器33用于存储程序指令，处理器31用于调用存储器33中的程序指令执行上述方案。
本实施例以上所述的网络设备的芯片，可以用于执行本申请上述各方法实施例中网络设备或其内部芯片的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图7为本申请一实施例提供的通信设备的结构示意图，如图7所示，本实施例的通信设备可以为终端，也可以为终端内部的芯片，包括：接收模块41和处理模块42。
接收模块41，用于接收网络设备发送的控制信息；所述控制信息的资源分配域携带为所述终端分配的频域资源的信息。
处理模块42，用于根据所述控制信息的MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度；以及所述终端根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。
可选的，所述处理模块42，具体用于：当所述MCS域所指示的索引属于第一MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度；当所述MCS域所指示的索引属于第二MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第二粒度。
其中，第一粒度和第二粒度不同，所述第一MCS索引集合和所述第二MCS索引集合的交集为空集。
可选的，所述第一MCS索引集合中的任意一个MCS索引均小于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于第二粒度。
可选的，所述处理模块42，还用于根据所述MCS域，确定用于所述通信设备与所述网络设备通信的MCS的索引。
可选的，所述处理模块42，具体用于：
当所述MCS域所指示的索引属于第三MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述通信设备与所述网络设备通信的MCS的索引，其中，所述第三MCS索引集合是所述第一MCS索引集合的子集；
当所述MCS域所指示的索引不属于第三MCS索引集合时，确定所述MCS域所指示的索引为所述用于所述通信设备与所述网络设备通信的MCS的索引。
可选的，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
可选的，所述处理模块42，还用于在所述MCS域所指示的索引属于第一MCS索引集合时，确定所述第一粒度包括N个RB；其中，所述N大于M，所述M为第二粒度中RB的数量。
其中，具有第二粒度的频域资源的信息占用所述资源分配域中的所有比特位置。
可选的，当所述MCS域所指示的索引属于所述第三MCS索引集合时，所述MCS域所指示的索引具体用于指示从所述资源分配域中解析所述用于所述通信设备与网络设备通信的MCS的索引。
可选的，所述第三MCS索引集合包括索引0。
可选的，所述处理模块42，具体用于：
当所述MCS域所指示的索引属于第四MCS索引集合，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度，其中，所述第四MCS索引集合与所述第一MCS索引集合的交集为空集，所述第四MCS索引集合与所述第二MCS索引集合的交集也为空集。
可选的，所述处理模块42，还用于：当所述MCS所指示的索引属于所述第四MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述通信设备与所述网络设备通信的MCS的索引。
可选的，所述第一MCS索引集合中的任意一个MCS索引均大于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于所述第二粒度。
可选的，所述处理模块42，还用于：当所述MCS所指示的索引属于所述第二MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息，确定所述用于所述通信设备与所述网络设备通信的MCS的索引。
本实施例以上所述的终端，可以用于执行上述各方法实施例中终端/终端芯片执行的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图8为本申请一实施例提供的终端的结构示意图，如图8所示，本实施例的终端可以包括：处理器51和收发机52。处理器51与收发机52通信连接。
在硬件实现上，以上接收模块41可以是本实施例中的收发机52。或者，收发机52包括发射器和接收机，则以上接收模块41可以为收发机52中的发射器。以上处理模块42可以以硬件形式内嵌于或独立于终端的处理器51中。
所述收发机52可以包括混频器等必要的射频通信器件。所述处理器51可以包括CPU、DSP、MCU、ASIC或FPGA中的至少一个。
可选地，本实施例的网络设备还可以包括存储器53，存储器53用于存储程序指 令，处理器51用于调用存储器53中的程序指令执行上述方案。
所述程序指令可以以软件功能单元的形式实现并能够作为独立的产品销售或使用，所述存储器53可以是任意形式的计算机可读取存储介质。基于这样的理解，本申请的技术方案的全部或部分可以以软件产品的形式体现出来，包括若干指令用以使得一台计算机设备，具体可以是处理器51，来执行本申请各个实施例中终端的全部或部分步骤。而前述的计算机可读存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本实施例以上所述的终端，可以用于执行本申请上述各方法实施例中终端或其内部芯片的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
图9为本申请一实施例提供的终端的芯片的结构示意图，如图9所示，本实施例的终端的芯片可以包括：处理器61和输入输出端口62。处理器61与输入输出端口62通信连接。
在硬件实现上，以上接收模块41可以是本实施例中的输入输出端口62。或者，输入输出端口62包括输入端口和输出端口，则以上接收模块41可以为输入输出端口62中的输入端口。以上处理模块42可以以硬件形式内嵌于或独立于芯片的处理器61中。
可选地，本实施例的网络设备还可以包括存储器63，存储器63用于存储程序指令，处理器61用于调用存储器63中的程序指令执行上述方案。
本实施例以上所述的终端的芯片，可以用于执行本申请上述各方法实施例中终端或其内部芯片的技术方案，其实现原理和技术效果类似，其中各个模块的功能可以参考方法实施例中相应的描述，此处不再赘述。
需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。在本申请的实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用 计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。

Claims (34)

  1. 一种通信方法，其特征在于，所述方法应用于网络设备，包括：
    确定与终端通信的调制编码策略MCS；
    根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度；
    向所述终端发送控制信息，所述控制信息的资源分配域中携带为所述终端分配的频域资源的信息，其中，所述分配的频率资源的粒度为所述确定的粒度。
  2. 根据权利要求1所述的方法，其特征在于，所述根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度，包括：
    当确定的MCS属于第一MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第一粒度；
    当确定的MCS属于第二MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第二粒度；
    其中，第一粒度大于第二粒度，所述第一MCS集合中的任意一个MCS和所述第二MCS集合中的任意一个MCS不同。
  3. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    向终端发送所述确定的MCS的索引。
  4. 根据权利要求3所述的方法，其特征在于，在所述确定的MCS属于第三MCS集合时，所述确定的MCS的索引占用所述资源分配域中预设的K个比特位置，所述K为大于或等于1的整数，其中，所述第三MCS集合为所述第一MCS集合的子集。
  5. 根据权利要求4所述的方法，其特征在于，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
  6. 根据权利要求4或5所述的方法，其特征在于，还包括：
    在所述确定的MCS属于所述第三MCS集合时，在所述控制信息的MCS域中填充预设的索引，所述预设的索引用于指示需从所述资源分配域中解析出所述确定的MCS的索引。
  7. 根据权利要求6所述的方法，其特征在于，所述预设的索引具体为索引号0或者预留的MCS索引号。
  8. 根据权利要求4到7任一项所述的方法，其特征在于，在所述确定的MCS不属于第三MCS集合时，所述确定的MCS的索引占用所述控制信息中的MCS域。
  9. 一种通信方法，其特征在于，所述方法应用于终端，包括：
    接收网络设备发送的控制信息；所述控制信息的资源分配域携带为终端分配的频域资源的信息；
    根据所述控制信息的调制编码策略MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度；
    根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。
  10. 根据权利要求9所述的方法，其特征在于，所述根据所述控制信息的调制编码策略MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度，包括：
    当所述MCS域所指示的索引属于第一MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度；
    当所述MCS域所指示的索引属于第二MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第二粒度；
    其中，第一粒度和第二粒度不同，所述第一MCS索引集合和所述第二MCS索引集合的交集为空集。
  11. 根据权利要求10所述的方法，其特征在于，所述第一MCS索引集合中的任意一个MCS索引均小于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于第二粒度。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：根据所述MCS域，确定用于所述终端与所述网络设备通信的MCS的索引。
  13. 根据权利要求12所述的方法，其特征在于，所述根据所述MCS域，确定与所述网络设备通信的MCS的索引包括：
    当所述MCS域所指示的索引属于第三MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述终端与所述网络设备通信的MCS的索引，其中，所述K为大于或等于1的整数，所述第三MCS索引集合是所述第一MCS索引集合的子集；
    当所述MCS域所指示的索引不属于第三MCS索引集合时，所述MCS域所指示的索引即为所述用于所述终端与所述网络设备通信的MCS的索引。
  14. 根据权利要求13所述的方法，其特征在于，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
  15. 根据权利要求13或14所述的方法，其特征在于，当所述MCS域所指示的索引属于所述第三MCS索引集合时，所述MCS域所指示的索引具体用于指示从所述资源分配域中解析所述用于所述终端与网络设备通信的MCS的索引。
  16. 根据权利要求13到15任一项所述的方法，其特征在于，所述第三MCS索引集合包括索引0。
  17. 一种通信设备，其特征在于，包括：
    处理模块，用于确定与终端通信的调制编码策略MCS；以及根据确定的MCS确定给所述终端分配用于通信的频域资源的粒度；
    发送模块，用于向所述终端发送控制信息，所述控制信息的资源分配域中携带为所述终端分配的频域资源的信息，其中，所述分配的频率资源的粒度为所述确定的粒度。
  18. 根据权利要求17所述的通信设备，其特征在于，所述处理模块，具体用于：当确定的MCS属于第一MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第一粒度；当确定的MCS属于第二MCS集合时，确定给所述终端分配用于通信的频域资源的粒度为第二粒度；
    其中，第一粒度大于第二粒度，所述第一MCS集合中的任意一个MCS与所述第二MCS集合中的任意一个MCS不同。
  19. 根据权利要求18所述的通信设备，其特征在于，所述发送模块，还用于向终 端发送所述确定的MCS的索引。
  20. 根据权利要求19所述的通信设备，其特征在于，在所述确定的MCS属于第三MCS集合时，所述确定的MCS的索引占用所述资源分配域中预设的K个比特位置，所述K为大于或等于1的整数，其中，所述第三MCS集合为所述第一MCS集合的子集。
  21. 根据权利要求20所述的通信设备，其特征在于，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
  22. 根据权利要求20或21所述的通信设备，其特征在于，所述处理模块，还用于在所述确定的MCS属于所述第三MCS集合时，在所述控制信息的MCS域中填充预设的索引，所述预设的索引用于指示需从所述资源分配域中解析出所述确定的MCS的索引。
  23. 根据权利要求22所述的通信设备，其特征在于，所述预设的索引具体为索引号0或者预留的MCS索引号。
  24. 根据权利要求20到23任一项所述的通信设备，其特征在于，在所述确定的MCS不属于第三MCS集合时，所述确定的MCS的索引占用所述控制信息中的MCS域。
  25. 一种通信设备，其特征在于，包括：
    接收模块，用于接收网络设备发送的控制信息；所述控制信息的资源分配域携带为终端分配的频域资源的信息；
    处理模块，用于根据所述控制信息的调制编码策略MCS域，确定所述网络设备给所述终端分配用于通信的频域资源的粒度；以及所述终端根据所述频域资源的粒度，解析所述控制信息的资源分配域，确定所述终端用于通信的频域资源的信息。
  26. 根据权利要求25所述的通信设备，其特征在于，所述处理模块，具体用于：当所述MCS域所指示的索引属于第一MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第一粒度；当所述MCS域所指示的索引属于第二MCS索引集合时，确定所述网络设备给所述终端分配用于通信的频域资源的粒度为第二粒度；
    其中，第一粒度和第二粒度不同，所述第一MCS索引集合和所述第二MCS索引集合的交集为空集。
  27. 根据权利要求26所述的通信设备，其特征在于，所述第一MCS索引集合中的任意一个MCS索引均小于所述第二MCS索引集合中的任意一个MCS索引，所述第一粒度大于第二粒度。
  28. 根据权利要求27所述的通信设备，其特征在于，所述处理模块，还用于根据所述MCS域，确定用于所述通信设备与所述网络设备通信的MCS的索引。
  29. 根据权利要求28所述的通信设备，其特征在于，所述处理模块，具体用于：
    当所述MCS域所指示的索引属于第三MCS索引集合时，根据所述资源分配域中预设的K个比特位置上的信息确定所述用于所述通信设备与所述网络设备通信的MCS的索引，其中，所述K为大于或等于1的整数，所述第三MCS索引集合是所述第一MCS索引集合的子集；
    当所述MCS域所指示的索引不属于第三MCS索引集合时，确定所述MCS域所指示的索引为所述用于所述通信设备与所述网络设备通信的MCS的索引。
  30. 根据权利要求29所述的通信设备，其特征在于，所述资源分配域中除所述K个比特位置之外的比特位置用于指示频域资源的信息。
  31. 根据权利要求29或30所述的通信设备，其特征在于，当所述MCS域所指示的索引属于所述第三MCS索引集合时，所述MCS域所指示的索引具体用于指示从所述资源分配域中解析所述用于所述通信设备与网络设备通信的MCS的索引。
  32. 根据权利要29到31任一项所述的通信设备，其特征在于，所述第三MCS索引集合包括索引0。
  33. 一种存储介质，其特征在于，包括：可读存储介质和计算机程序，所述计算机程序用于实现如权利要求1到16任一项所述的通信方法。
  34. 一种程序产品，其特征在于，所述程序产品包括计算机程序，所述计算机程序存储在可读存储介质中，通信设备的至少一个处理器可以从所述可读存储介质读取所述计算机程序，所述至少一个处理器执行所述计算机程序使得通信设备实施如权利要求1到16任一项的通信方法。
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