WO2017194003A1 - 一种数据传输方法、网络设备及用户设备 - Google Patents

一种数据传输方法、网络设备及用户设备 Download PDF

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Publication number
WO2017194003A1
WO2017194003A1 PCT/CN2017/084173 CN2017084173W WO2017194003A1 WO 2017194003 A1 WO2017194003 A1 WO 2017194003A1 CN 2017084173 W CN2017084173 W CN 2017084173W WO 2017194003 A1 WO2017194003 A1 WO 2017194003A1
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Prior art keywords
time domain
domain resource
indication information
random access
resource unit
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PCT/CN2017/084173
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English (en)
French (fr)
Inventor
张弛
李俊超
龚政委
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17795621.6A priority Critical patent/EP3451781B1/en
Priority to BR112018073216A priority patent/BR112018073216A2/pt
Priority to JP2018559256A priority patent/JP2019519147A/ja
Publication of WO2017194003A1 publication Critical patent/WO2017194003A1/zh
Priority to US16/186,835 priority patent/US11129199B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a data transmission method, a network device, and a user equipment.
  • the network device In the existing random access procedure of the user equipment UE specified in the Long Term Evolution (LTE) communication system, the network device must send a system message block SIB2 broadcast message including a predefined random access resource index number to the UE.
  • the UE queries the pre-stored random access resource configuration table according to the index number, so as to determine a corresponding random access resource that can initiate a random access procedure, and the random access resource is in a predefined different uplink and downlink subframe. There is a corresponding clear definition under the ratio.
  • the index number is semi-statically provided by the network device through the high layer signaling (SIB2 broadcast message), that is, the UE sends the index number associated with the uplink and downlink subframe ratio according to the network device, and the table is determined to determine which random numbers can be used.
  • SIB2 broadcast message the high layer signaling
  • the semi-static random access resource allocation scheme is a resource allocation scheme under the predefined upper and lower downlink subframe ratio limitation, which limits the wireless distribution of the communication system.
  • the flexibility of the resource cannot be applied to the communication system in which the uplink and downlink resources of the cell are dynamically determined by the network device.
  • the embodiments of the present invention provide a data transmission method, a network device, and a user equipment, which dynamically indicate resources of a random access channel through physical layer control signaling, so as to improve allocation flexibility of random access resources.
  • an embodiment of the present invention provides a data transmission method, including:
  • the network device sends the first indication information and the second indication information to the user equipment, where the first indication information is used to indicate a frequency domain resource of the physical random access channel of the user equipment, and the second indication information is physical layer control. Signaling, the second indication information is used to indicate a time domain resource of the physical random access channel, where the frequency domain resource and the random access resource determined by the time domain resource are used to carry the user equipment Random access information.
  • the network device receives the random access information of the user equipment that is carried on the random access resource.
  • the second indication information may be a public physical layer downlink control signaling, or may be a group physical layer downlink control command.
  • the network device sends a cell to the cell. All the user equipments in the network send the second indication information. If the second indication information is the group physical layer downlink control signaling, the network device sends the second indication information to some user equipments in the cell.
  • the first indication information indicates the frequency domain resource of the physical random access channel of the user equipment
  • the second indication information indicates the time domain resource of the physical random access channel
  • the second indication information is physical.
  • the layer control signaling is a method for semi-statically indicating a random access resource by periodically transmitting an SIB broadcast message in the prior art. Since the physical layer control signaling is notified in real time, the physical layer control signaling can be dynamically The time domain resource of the random access channel is indicated. Therefore, the embodiment of the present invention can satisfy the requirement that the communication system dynamically indicates the random access resource. It is beneficial to improve the allocation flexibility of random access resources.
  • the second indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the transmission time interval refers to a length of an independent decoding transmission in a radio link, and is a time domain resource unit concept of a logical layer, such as a transmission time interval TTI parameter in an LTE system; the transmission time period is in a physical
  • the layer allocates a duration parameter of the time domain resource, which is a time domain resource unit concept of the physical layer, such as a subframe subframe parameter in the LTE system.
  • the second indication information is scrambled according to a preset identifier, where the preset identifier is used by the user equipment to descramble the second indication information, and determining the The time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the preset identifier may be a preset specific radio network temporary identifier RNTI for scrambling and descrambling the second indication information, where the preset identifier is used to identify the time domain resource unit n+k to be used as the physical
  • the time domain resource of the random access channel may be, for example, a physical random access channel wireless network temporary identifier.
  • the second indication information includes a first indication field, where the first indication field is used to indicate that the time domain resource unit n+k is used as the physical random connection. Time domain resources into the channel.
  • the first indication field may be, for example, one of the second indication information carrying the 0 or 1 identification information, and the network device may set the 0 or 1 identification information for indicating the time domain resource unit n+ to the user equipment.
  • k is used as a time domain resource of the physical random access channel.
  • the first indication field is further used to indicate a value of k.
  • the first indication information includes a system message or a radio resource control signaling.
  • an embodiment of the present invention provides a data transmission method, including:
  • the network device sends the third indication information to the user equipment, where the third indication information is physical layer control signaling, and the third indication information is used to indicate frequency domain resources and time domain of the physical random access channel of the user equipment.
  • the random access resource determined by the resource, the frequency domain resource, and the time domain resource is used to carry random access information of the user equipment.
  • the network device receives the random access information of the user equipment that is carried on the random access resource.
  • the third indication information may be a public physical layer downlink control signaling, or may be a group physical layer downlink control instruction.
  • the network device sends a cell to the cell. All the user equipments in the network send the third indication information. If the third indication information is the group physical layer downlink control signaling, the network device sends the third indication information to some user equipments in the cell.
  • the third indication information indicates the frequency domain resource and the time domain resource of the physical random access channel of the user equipment, and the third indication information is physical layer control signaling, which is compared with the prior art.
  • a method for periodically transmitting an SIB broadcast message to semi-statically indicate a random access resource Since the physical layer control signaling is notified in real time, the physical layer control signaling can dynamically indicate the time-frequency resource of the random access channel.
  • the embodiment of the invention can meet the requirement that the communication system dynamically indicates the random access resource, and is beneficial to improving the allocation flexibility of the random access resource.
  • the third indication information includes a second indication field, where the second indication field is used to indicate the frequency domain resource.
  • the second indication field may be, for example, a bit in the third indication information that carries multiple 0 or 1 identification information, where the bit is used to indicate which part of the frequency domain resource on the time domain resource unit can be used as
  • the frequency domain resource of the physical random access channel of the user equipment for example, the identifier information sequence 001 corresponding to the bit is used to indicate the frequency domain resource with the index of 1 as the frequency domain resource of the physical random access channel.
  • the third indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the transmission time interval refers to a length of an independent decoding transmission in a radio link, and is a time domain resource unit concept of a logical layer, such as a transmission time interval TTI parameter in an LTE system; the transmission time period is in a physical
  • the layer allocates a duration parameter of the time domain resource, which is a time domain resource unit concept of the physical layer, such as a subframe subframe parameter in the LTE system.
  • the format of the third indication information is a preset format, where the preset format is used to indicate that the time domain resource unit n+k is used as the physical random connection. Time domain resources into the channel.
  • the third indication information is scrambled according to a preset identifier, where the preset identifier is used by the user equipment to descramble the third indication information, and determining the The time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the preset identifier may be a preset specific radio network temporary identifier RNTI for scrambling and descrambling the third indication information, for example, may be a physical random access channel radio network temporary identifier.
  • the third indication information includes a third indication field, where the third indication field is used to indicate that the time domain resource unit n+k is used as the physical random connection. Time domain resources into the channel.
  • the third indication field may be, for example, one of the third indication information carrying the 0 or 1 identification information, and the network device may set the 0 or 1 identification information to indicate the time domain resource unit n+ to the user equipment.
  • k is used as a time domain resource of the physical random access channel.
  • the third indication field may also be used to indicate a value of k.
  • an embodiment of the present invention provides a data transmission method, including:
  • the user equipment receives the first indication information and the second indication information from the network device, where the first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment, and the second indication information is a physical layer control instruction
  • the second indication information is used to indicate a time domain resource of the physical random access channel, where the frequency domain resource and the random access resource determined by the time domain resource are used to carry the random connection of the user equipment. Enter information.
  • the user equipment determines a frequency domain resource of the physical random access channel according to the first indication information, determines a time domain resource of the physical random access channel according to the second indication information, and at the frequency
  • the random access resource determined by the domain resource and the time domain resource carries random access information, and the random access information is sent to the network device.
  • the second indication information may be a public physical layer downlink control signaling or a group downlink control command.
  • the network device is in the cell. All the user equipments send the second indication information. If the second indication information is the group physical layer downlink control signaling, the network device sends the second indication information to some user equipments in the cell.
  • the first indication information indicates the frequency domain resource of the physical random access channel of the user equipment
  • the second indication information indicates the time domain resource of the physical random access channel
  • the second indication information is physical.
  • the layer control signaling is a method for semi-statically indicating a random access resource by periodically transmitting an SIB broadcast message in the prior art. Since the physical layer control signaling is notified in real time, the physical layer control signaling can be dynamically The time domain resource of the random access channel is indicated. Therefore, the embodiment of the present invention can meet the requirement that the communication system dynamically indicates the random access resource, and is beneficial to improving the allocation flexibility of the random access resource.
  • the second indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the transmission time interval refers to a length of an independent decoding transmission in a radio link, and is a time domain resource unit concept of a logical layer, such as a transmission time interval TTI parameter in an LTE system; the transmission time period is in a physical
  • the layer allocates a duration parameter of the time domain resource, which is a time domain resource unit concept of the physical layer, such as a subframe subframe parameter in the LTE system.
  • the second indication information is scrambled according to a preset identifier, where the preset identifier is used by the user equipment to descramble the second indication information, and determining the The time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the preset identifier is used to identify that the time domain resource unit n+k is used as the time domain resource of the physical random access channel, and the preset identifier may be a preset second indication for scrambling and descrambling.
  • the specific radio network temporary identifier RNTI of the information may be, for example, a physical random access channel radio network temporary identifier.
  • the second indication information includes a first indication field, where the first indication field is used to indicate that the time domain resource unit n+k is used as the physical random connection. Time domain resources into the channel.
  • the first indication field may be, for example, one of the second indication information carrying the 0 or 1 identification information, and the network device may set the 0 or 1 identification information for indicating the time domain resource unit n+ to the user equipment.
  • k is used as stated The time domain resource of the physical random access channel.
  • the first indication field is further used to indicate a value of k.
  • the first indication information includes a system message or a radio resource control signaling.
  • an embodiment of the present invention provides a data transmission method, including:
  • the user equipment receives the third indication information from the network device, where the third indication information is physical layer control signaling, and the third indication information is used to indicate frequency domain resources and time domain resources of the physical random access channel of the user equipment. And the random access resource determined by the frequency domain resource and the time domain resource is used to carry random access information of the user equipment.
  • the third indication information is physical layer control signaling
  • the third indication information is used to indicate frequency domain resources and time domain resources of the physical random access channel of the user equipment.
  • the random access resource determined by the frequency domain resource and the time domain resource is used to carry random access information of the user equipment.
  • the user equipment determines, according to the third indication information, a time domain resource and a frequency domain resource of the physical random access channel, and the random access resource determined by the frequency domain resource and the time domain resource. Carrying random access information and transmitting the random access information to the network device.
  • the third indication information may be a public physical layer downlink control signaling, or may be a group physical layer downlink control instruction.
  • the network device sends a cell to the cell. All the user equipments in the network send the third indication information. If the third indication information is the group physical layer downlink control signaling, the network device sends the third indication information to some user equipments in the cell.
  • the third indication information indicates the frequency domain resource and the time domain resource of the physical random access channel of the user equipment, and the third indication information is physical layer control signaling, which is compared with the prior art.
  • a method for periodically transmitting an SIB broadcast message to semi-statically indicate a random access resource Since the physical layer control signaling is notified in real time, the physical layer control signaling can dynamically indicate the time-frequency resource of the random access channel.
  • the embodiment of the invention can meet the requirement that the communication system dynamically indicates the random access resource, and is beneficial to improving the allocation flexibility of the random access resource.
  • the third indication information includes a second indication field, where the second indication field is used to indicate the frequency domain resource.
  • the second indication field may be, for example, a bit in the third indication information that carries multiple 0 or 1 identification information, where the bit is used to indicate which part of the frequency domain resource on the time domain resource unit can be used as
  • the frequency domain resource of the physical random access channel of the user equipment for example, the identifier information sequence 001 corresponding to the bit is used to indicate the frequency domain resource with the index of 1 as the frequency domain resource of the physical random access channel.
  • the third indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the transmission time interval refers to a length of an independent decoding transmission in a radio link, and is a time domain resource unit concept of a logical layer, such as a transmission time interval TTI parameter in an LTE system; the transmission time period is in a physical
  • the layer allocates a time length parameter of the time domain resource, which is a time domain resource unit concept of the physical layer, such as a subframe subframe in the LTE system. parameter.
  • the format of the third indication information is a preset format, where the preset format is used to indicate that the time domain resource unit n+k is used as the physical random connection. Time domain resources into the channel.
  • the time domain resource is determined by the user equipment when detecting that the format of the third indication information is a preset format.
  • the third indication information is scrambled according to a preset identifier, where the preset identifier is used by the user equipment to descramble the third indication information, and determining the The time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the preset identifier may be a preset specific radio network temporary identifier RNTI for scrambling and descrambling the third indication information, for example, may be a physical random access channel radio network temporary identifier.
  • the third indication information includes a third indication field, where the third indication field is used to indicate that the time domain resource unit n+k is used as the physical random connection. Time domain resources into the channel.
  • the third indication field may be, for example, one of the third indication information carrying the 0 or 1 identification information, and the network device may set the 0 or 1 identification information to indicate the time domain resource unit n+ to the user equipment.
  • k is used as a time domain resource of the physical random access channel.
  • the third indication field is further used to indicate a value of k.
  • an embodiment of the present invention provides a network device, where the network device includes a function module, where the function module is used to perform the part described in any one of the first aspect or the second aspect of the embodiment of the present invention or All steps.
  • the embodiment of the present invention provides a user equipment, where the user equipment includes a function module, where the function module is used to perform the part described in the third aspect or the fourth aspect of the embodiment of the present invention or All steps.
  • an embodiment of the present invention provides a network device, including:
  • processor an interface circuit, a memory, and a bus, wherein the processor, the interface circuit, and the memory are connected by the bus and complete communication with each other;
  • the interface circuit is configured to communicate with a user equipment under control of the processor, the memory storing executable program code;
  • the processor is configured to invoke the executable program code to perform some or all of the steps as described in any of the first or second aspects of the embodiments of the present invention.
  • the eighth aspect of the present invention provides a user equipment, including:
  • processor a processor, a memory, a communication interface, and a bus, wherein the processor, the memory, and the communication interface are connected by the bus and complete communication with each other;
  • the communication interface is configured to communicate with a network device, the memory storing executable program code
  • the processor is configured to invoke the executable program code to perform some or all of the steps as described in any one of the third or fourth aspects of the embodiments of the present invention.
  • an embodiment of the present invention provides a computer readable storage medium, the computer readable storage medium
  • the program code is stored.
  • the program code includes instructions for performing some or all of the steps described in the first or second aspect of the embodiments of the present invention.
  • an embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores program code.
  • the program code includes instructions for performing some or all of the steps described in the third or fourth aspect of the embodiments of the present invention.
  • 1 is a schematic diagram of configuration of seven time-division duplex TDD uplink and downlink subframes used by eIMTA in 3GPP in the prior art;
  • FIG. 2 is a system architecture diagram of an example communication system according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 3.1 is a schematic diagram of time-frequency resources of a physical random access channel according to an embodiment of the present disclosure
  • FIG. 3.2 is a schematic diagram of time-frequency resources of another physical random access channel according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart of another data transmission method according to an embodiment of the present invention.
  • FIG. 4.1 is a schematic diagram of still another time-frequency resource of a physical random access channel according to an embodiment of the present disclosure.
  • FIG. 5 is a functional block diagram of a network device according to an embodiment of the present invention.
  • FIG. 6 is a functional block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 1 is currently the third.
  • TDD Time division duplexing
  • 3GPP 3 rd Generation partnership Project
  • eIMTA enhanced adaptive interference management and business
  • the base station informs the user equipment (User Equipment, UE) of the cell of the physical random access channel PRACH time-frequency resource set available to the cell through a high-level message (SIB2 broadcast message).
  • SIB2 broadcast message As shown in Table 1, Table 1 is a list of time-frequency resources that can be used for random access defined in the current 3GPP 36.211 for TDD frame structure.
  • Each row in the table represents a configuration of a random access resource, which is specifically indicated by the index number PRACH configuration index, and each of the different uplink and downlink subframe configurations (Up Link/Down Link configuration, UL/DL configuration)
  • the preamble format Preamble Format4 is an exception. Mark as(*).
  • the index number PRACH configuration index is semi-statically provided by higher layer signaling (SIB2 broadcast message).
  • the UE can determine different random access resources corresponding to the uplink and downlink subframe ratios. That is to say, the UE must receive the predefined uplink-downlink subframe ratio sent by the base station, so that the table can determine which time-frequency resources should be used to initiate the random access procedure.
  • communication systems such as the 5th Generation (5G) communication system, the current name of the related technology of the 5G communication system in the standard is New Radio (NR) technology
  • NR New Radio
  • D-TDD Dynamic-Time Division Duplexing
  • the uplink and downlink resources of a cell will be dynamically determined by the network side. That is, there is no longer a limited finite uplink and downlink subframe configuration, so that the existing scheme provides a semi-static index by high-level signaling to indicate that the scheme of random access resources is no longer applicable.
  • FIG. 2 is a system architecture diagram of an example communication system according to an embodiment of the present invention, including a core network device, a network device, and a user equipment.
  • the example communication system may be an LTE communication system or a future communication system that utilizes 5G new air interface NR technology.
  • the core network device may include, for example, a Mobility Management Entity (MME) or a Serving GateWay (S-GW), where the MME is mainly responsible for the signaling processing part, that is, the control plane function. Includes access control, mobility management, attach and detach, session management, and gateway selection.
  • the S-GW is mainly responsible for the user plane function of user data forwarding, that is, routing and forwarding of data packets under the control of the MME.
  • the network device may include, for example, an Evolved Node B (eNode B) or a base station in a future 5G network, and is mainly responsible for radio resource management, quality of service (QoS) management, and data compression on the air interface side.
  • eNode B Evolved Node B
  • QoS quality of service
  • the eNode B is mainly responsible for forwarding control plane signaling to the MME and forwarding user plane service data to the S-GW.
  • the user equipment UE may, for example, comprise a handheld device having a wireless communication function, an in-vehicle device, a wearable device, a computing device or connected to a wireless modulation
  • the other processing devices of the demodulator, as well as the mobile station (MS), the terminal equipment (Terminal Equipment), etc., are referred to as user equipments or UEs in the present application for convenience of description.
  • a data transmission method provided by an embodiment of the present invention includes the following steps:
  • the network device sends first indication information and second indication information to the user equipment, where the first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment, and the second indication information is physical Layer control signaling, the second indication information is used to indicate a time domain resource of the physical random access channel, where the frequency domain resource and the random access resource determined by the time domain resource are used to carry the user Random access information of the device.
  • the user equipment receives the first indication information and the second indication information from the network device, where the first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment, and the second indication information is a physical layer.
  • a control instruction where the second indication information is used to indicate a time domain resource of the physical random access channel, where the frequency domain resource and the random access resource determined by the time domain resource are used to carry the user equipment Random access information.
  • the user equipment determines a frequency domain resource of the physical random access channel according to the first indication information, determines a time domain resource of the physical random access channel according to the second indication information, and at the frequency
  • the random access resource determined by the domain resource and the time domain resource carries random access information, and the random access information is sent to the network device.
  • the network device receives the random access information of the user equipment that is carried on the random access resource.
  • the second indication information may be a public physical layer downlink control signaling, or may be a group physical layer downlink control command.
  • the network device sends a cell to the cell. All the user equipments in the network send the second indication information. If the second indication information is the group physical layer downlink control signaling, the network device sends the second indication information to some user equipments in the cell.
  • the first indication information includes a system message or a radio resource control signaling.
  • the first indication information indicates the frequency domain resource of the physical random access channel of the user equipment
  • the second indication information indicates the time domain resource of the physical random access channel
  • the second indication information is physical.
  • the layer control signaling is a method for semi-statically indicating a random access resource by periodically transmitting an SIB broadcast message in the prior art. Since the physical layer control signaling is notified in real time, the physical layer control signaling can be dynamically The time domain resource of the random access channel is indicated. Therefore, the embodiment of the present invention can meet the requirement that the communication system dynamically indicates the random access resource, and is beneficial to improving the allocation flexibility of the random access resource.
  • the second indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the transmission time interval refers to a length of an independent decoding transmission in a radio link, and is a time domain resource unit concept of a logical layer, such as a Transmission Time Interval (TTI) parameter in an LTE system;
  • TTI Transmission Time Interval
  • the transmission time period is a time length parameter of the time domain resource allocated in the physical layer, and is a time domain resource unit concept of the physical layer, such as a subframe subframe parameter in the LTE system.
  • the second indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the second indication information, and the time domain resource is determined.
  • Unit n+k is used as a time domain resource for the physical random access channel.
  • the preset identifier is used to identify that the time domain resource unit n+k is used as the time domain resource of the physical random access channel, and the preset identifier may be a preset second indication for scrambling and descrambling.
  • the specific Radio Network Temporary Identifier (RNTI) of the information may be, for example, a physical random access channel radio network temporary identifier.
  • FIG. 3.1 is a schematic diagram of time-frequency resources of a physical random access channel according to an embodiment of the present invention.
  • the first indication information is a system information block (SIB) broadcast message
  • the SIB broadcast message indicates a frequency domain resource that can be used by a physical random access channel (PRACH) of the UE in the cell, as shown in FIG. 3.1.
  • the second indication information is a Downlink Control Information (DCI), where the DCI of the first, second, and third time domain resource units is a temporary use of the physical random access channel wireless network. Identifying the scrambled DCI, the DCI of the fourth and fifth time domain resource units is the DCI scrambled using the physical random access channel radio network temporary identifier.
  • the random access process between the network device and the user equipment may include:
  • the network device sends the SIB broadcast message and the DCI to the user equipment;
  • the network device Receiving, by the user equipment, the SIB broadcast message and the DCI from the network device, determining, according to the SIB broadcast message, a frequency domain resource F1 that can be used by the PRACH of the UE in the cell, and using the physical random access channel, the wireless network, the temporary identifier, and the descrambling
  • the DCI after descrambling the DCI in the fourth time domain resource unit and the fifth time domain resource unit, determines that the frequency domain resource F1 in the fourth time domain resource unit and the fifth time domain resource unit is a random connection that can be used by the PRACH.
  • the input resource that is, the resource marked by the dotted line frame and the solid line frame in the figure, and carries the random access information on the random access resource, and sends the random access information to the network device;
  • the network device receives the random access information that is sent by the user equipment and is carried on the random access resource.
  • the second indication information includes a first indication field, where the first indication field is used to indicate that the time domain resource unit n+k is used as the physical random access channel. Time domain resources.
  • the first indication field may be, for example, one of the second indication information carrying the 0 or 1 identification information, and the network device may set the 0 or 1 identification information for indicating the time domain resource unit n+ to the user equipment.
  • k is used as a time domain resource of the physical random access channel.
  • FIG. 3.2 is a schematic diagram of time-frequency resources of another physical random access channel according to an embodiment of the present invention.
  • the first indication information is a system message block SIB broadcast message
  • the SIB broadcast message indicates that the frequency domain resource that the physical random access channel PRACH in the UE cell can use is shown in the dotted line frame in FIG. 3.2
  • the second indication information is downlink control.
  • the message DCI includes a first indication field, where the first indication field is a bit carrying 0 or 1 identification information, and 1 is a time domain resource unit of the current DCI corresponding to the physical random access channel of the user equipment.
  • the identification information of the first indication domain in the DCI of the first, second, and third time domain resource units is 0, and the corresponding time domain resource unit is not used as the time domain of the PRACH.
  • the identification information of the first indication domain in the DCI of the fourth and fifth time domain resource units is 1, and the corresponding time domain resource unit is used as the time domain resource of the PRACH.
  • the random access process between the network device and the user equipment may specifically include:
  • the network device sends the SIB broadcast message and the DCI to the user equipment;
  • the receiving, by the user equipment, the SIB broadcast message and the DCI from the network device determining, according to the SIB broadcast message, a frequency domain resource F2 that can be used by the PRACH of the UE in the cell, and detecting the fourth time domain resource unit and the fifth time
  • the first indication field in the DCI of the domain resource unit is 1, and the frequency domain resource F2 in the fourth time domain resource unit and the fifth time domain resource unit is determined to be a random access resource that can be used by the PRACH, that is, a dotted frame in the figure. a resource jointly marked by a solid line frame, and carrying random access information on the random access resource, and sending random access information to the network device;
  • the network device receives the random access information that is sent by the user equipment and is carried on the random access resource.
  • the first indication field is further used to indicate a value of k.
  • another data transmission method provided by an embodiment of the present invention includes the following steps:
  • the network device sends third indication information to the user equipment, where the third indication information is physical layer control signaling, where the third indication information is used to indicate frequency domain resources of the physical random access channel of the user equipment.
  • the time domain resource, the random access resource determined by the frequency domain resource and the time domain resource is used to carry random access information of the user equipment.
  • the user equipment receives the third indication information from the network device, where the third indication information is physical layer control signaling, and the third indication information is used to indicate frequency domain resources of the physical random access channel of the user equipment. And the time domain resource, the random access resource determined by the frequency domain resource and the time domain resource is used to carry random access information of the user equipment.
  • the user equipment determines, according to the third indication information, a time domain resource and a frequency domain resource of the physical random access channel, and the random access resource determined by the frequency domain resource and the time domain resource. Carrying random access information and transmitting the random access information to the network device.
  • the network device receives the random access information of the user equipment that is carried on the random access resource.
  • the third indication information may be a public physical layer downlink control signaling, or may be a group physical layer downlink control instruction.
  • the network device sends a cell to the cell. All the user equipments in the network send the third indication information. If the third indication information is the group physical layer downlink control signaling, the network device sends the third indication information to some user equipments in the cell.
  • the third indication information indicates the frequency domain resource and the time domain resource of the physical random access channel of the user equipment, and the third indication information is physical layer control signaling, which is compared with the prior art.
  • a method for periodically transmitting an SIB broadcast message to semi-statically indicate a random access resource Since the physical layer control signaling is notified in real time, the physical layer control signaling can dynamically indicate the time-frequency resource of the random access channel.
  • the embodiment of the invention can meet the requirement that the communication system dynamically indicates the random access resource, and is beneficial to improving the allocation flexibility of the random access resource.
  • the third indication information includes a second indication field, where the second indication field is used to indicate the frequency domain resource.
  • the second indication field may be, for example, a bit in the third indication information that carries multiple 0 or 1 identification information, where the bit is used to indicate which part of the frequency domain resource on the time domain resource unit can be used as
  • the frequency domain resource of the physical random access channel of the user equipment for example, the identifier information sequence 001 corresponding to the bit is used to indicate the frequency domain resource with the index of 1 as the frequency domain resource of the physical random access channel.
  • FIG. 4.1 FIG. 4, which is a schematic diagram of another time-frequency resource of a physical random access channel according to an embodiment of the present invention.
  • the third indication information is a downlink control message DCI, where the DCI includes a second indication field, and as shown, when the UE detects the fourth and fifth time domain resources in the downlink (DL) control domain.
  • the unit includes a DCI, determining that the fourth and fifth time domain resources can be used as the time domain resource of the PRACH of the UE, and secondly, determining the location of the frequency domain resource according to the second indication field in the DCI, such as the PRACH frequency domain in the 001 mapping diagram. position.
  • the third indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the transmission time interval refers to a length of an independent decoding transmission in a radio link, and is a time domain resource unit concept of a logical layer, such as a transmission time interval TTI parameter in an LTE system; the transmission time period is in a physical
  • the layer allocates a duration parameter of the time domain resource, which is a time domain resource unit concept of the physical layer, such as a subframe subframe parameter in the LTE system.
  • the format of the third indication information is a preset format, where the preset format is used to indicate that the time domain resource unit n+k is used as the physical random access channel. Time domain resources.
  • the third indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the third indication information, and determine the time domain resource.
  • Unit n+k is used as a time domain resource for the physical random access channel.
  • the preset identifier may be a preset specific radio network temporary identifier RNTI for scrambling and descrambling the third indication information, for example, may be a physical random access channel radio network temporary identifier.
  • the third indication information includes a third indication field, where the third indication field is used to indicate that the time domain resource unit n+k is used as the physical random access channel. Time domain resources.
  • the third indication field may be, for example, one of the third indication information carrying the 0 or 1 identification information, and the network device may set the 0 or 1 identification information to indicate the time domain resource unit n+ to the user equipment.
  • k is used as a time domain resource of the physical random access channel.
  • the third indication field is further used to indicate a value of k.
  • FIG. 5 is a functional block diagram of a network device according to an embodiment of the present invention.
  • the network device 500 can include a sending unit 501, where:
  • the sending unit 501 is configured to send first indication information and second indication information to the user equipment, where the first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment, and the second The indication information is physical layer control signaling, the second indication information is used to indicate a time domain resource of the physical random access channel, and the frequency domain resource and the random access resource determined by the time domain resource are used for Carrying random access information of the user equipment.
  • the first indication information includes a system message or a radio resource control signaling.
  • the second indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the second indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the second indication information, and determining that the time domain resource unit n+k is used as Time domain resources of the physical random access channel.
  • the second indication information includes a first indication field, where the first indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the first indication field is further used to indicate a value of k.
  • the sending unit 501 of the network device 500 is configured to send third indication information to the user equipment, where the third indication information is physical layer control signaling, and the third indication information is used to indicate physical random access of the user equipment.
  • the third indication information is physical layer control signaling, and the third indication information is used to indicate physical random access of the user equipment.
  • the third indication information includes a second indication field, where the second indication field is used to indicate the frequency domain resource.
  • the third indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the format of the third indication information is a preset format, where the preset format is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the third indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the third indication information, and determining that the time domain resource unit n+k is used as Time domain resources of the physical random access channel.
  • the third indication information includes a third indication field, where the third indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the third indication field is further used to indicate a value of k.
  • each unit (transmission unit 501) described above may be used to perform the relevant steps of the foregoing method embodiments.
  • network device 500 is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above.
  • a person skilled in the art may know that the composition of the network device 500 may specifically be the network device shown in FIG. 7.
  • the function of the sending unit 501 may be implemented by the network device shown in FIG. 7.
  • the processor 701 may call the executable program code in the memory 703, and send the first indication information to the user equipment through the interface circuit 702. And the second indication information, or the third indication information is sent to the user equipment through the interface circuit 702.
  • the embodiment of the present invention can meet the requirement that the communication system dynamically indicates the random access resource, and is beneficial to improve the allocation flexibility of the random access resource.
  • FIG. 6 is a functional block diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment 600 can include a receiving unit 601, where:
  • the receiving unit is configured to receive first indication information and second indication information from a network device, where the first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment, and the second The indication information is a physical layer control instruction, where the second indication information is used to indicate a time domain resource of the physical random access channel, and the frequency domain resource and the random access resource determined by the time domain resource are used for carrying Random access information of the user equipment.
  • the first indication information includes a system message or a radio resource control signaling.
  • the second indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the second indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the second indication information, and determining that the time domain resource unit n+k is used as Time domain resources of the physical random access channel.
  • the second indication information includes a first indication field, where the first indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the first indication field is further used to indicate a value of k.
  • the receiving unit 601 of the user equipment 600 is configured to: receive third indication information from the network device, where the third indication information is physical layer control signaling, and the third indication information is used to indicate physicality of the user equipment
  • the third indication information includes a second indication field, where the second indication field is used to indicate the frequency domain resource.
  • the third indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the format of the third indication information is a preset format, where the preset format is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the time domain resource is determined by the user equipment when detecting that the format of the third indication information is a preset format.
  • the third indication information is scrambled according to the preset identifier, where the preset identifier is used to descramble the user equipment.
  • the third indication information and determining that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the third indication information includes a third indication field, where the third indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the third indication field is further used to indicate a value of k.
  • each of the above units (receiving unit 601) is used to perform the relevant steps of the above method.
  • the user device 600 is presented in the form of a unit.
  • a "unit” herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or other devices that provide the functionality described above.
  • a person skilled in the art may know that the user equipment 600 may be in the form of a user equipment as shown in FIG. 8.
  • the function of the receiving unit 601 may be implemented by the user equipment shown in FIG. 8.
  • the processor 801 may call the executable program code in the memory 803, and send the first indication information to the network device through the communication interface 802. And the second indication information, or the third indication information is sent to the network device through the communication interface 802.
  • the embodiment of the present invention can meet the requirement that the communication system dynamically indicates the random access resource, and is beneficial to improve the allocation flexibility of the random access resource.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • the network device includes a processor 701 and an interface circuit 702, a memory 703, and a bus 704.
  • the processor 701, the interface circuit 702, and the memory 703 are connected by a bus 704 and complete communication with each other.
  • the network device further includes a communication interface 705, configured to communicate with other devices on the network side, where other devices on the network side include, but are not limited to, other network devices, or core network devices.
  • the interface circuit 702 is configured to communicate with a user equipment under the control of the processor 701, where the memory 703 stores executable program code;
  • the processor 701 is configured to invoke the executable program code to perform the following operations:
  • the interface circuit 702 Transmitting, by the interface circuit 702, the first indication information and the second indication information to the user equipment, where the first indication information is used to indicate a frequency domain resource of the physical random access channel of the user equipment, and the second indication information
  • the second indication information is used to indicate a time domain resource of the physical random access channel, and the frequency domain resource and the random access resource determined by the time domain resource are used for a bearer The random access information of the user equipment.
  • the first indication information includes a system message or a radio resource control signaling.
  • the second indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the second indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the second indication information, and determining that the time domain resource unit n+k is used as Time domain resources of the physical random access channel.
  • the second indication information includes a first indication field, where the first indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the first indication field is further used to indicate a value of k.
  • the processor 701 is configured to invoke the executable program code to perform the following operations:
  • the third indication information is sent to the user equipment by using the interface circuit 702, where the third indication information is physical layer control signaling, and the third indication information is used to indicate a frequency domain of the physical random access channel of the user equipment.
  • the third indication information includes a second indication field, where the second indication field is used to indicate the frequency domain resource.
  • the third indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the format of the third indication information is a preset format, where the preset format is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the third indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the third indication information, and determining that the time domain resource unit n+k is used as Time domain resources of the physical random access channel.
  • the third indication information includes a third indication field, where the third indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the third indication field is further used to indicate a value of k.
  • the processor 701 herein may be a processor or a collective name of multiple processing elements.
  • the processor may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • DSPs digital signal processors
  • FPGAs Field Programmable Gate Arrays
  • the memory 703 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the operation of the access network management device. And the memory 703 may include random access memory (RAM), and may also include non-volatile memory such as a magnetic disk memory, a flash memory, or the like.
  • RAM random access memory
  • the bus 704 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus 704 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.
  • each unit function can be implemented based on the structure of the network device.
  • FIG. 8 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment provided by the embodiment of the present invention includes a processor 801 and a communication interface 802, a memory 803, and a bus 804.
  • the processor 801, the communication interface 802, and the memory 803 are connected by a bus 804 and complete each other. Communication.
  • the communication interface 802 is configured to communicate with a network device under control of the processor 801, where the memory 803 stores executable program code;
  • the processor 801 is configured to invoke the executable program code to perform the following operations:
  • first indication information is used to indicate a frequency domain resource of a physical random access channel of the user equipment
  • second indication information is a physical layer control instruction
  • the second indication information is used to indicate a time domain resource of the physical random access channel, where the frequency domain resource and the random access resource determined by the time domain resource are used to carry the user Random access information of the device.
  • the first indication information includes a system message or a radio resource control signaling.
  • the second indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the second indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the second indication information, and determining that the time domain resource unit n+k is used as Time domain resources of the physical random access channel.
  • the second indication information includes a first indication field, where the first indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the first indication field is further used to indicate a value of k.
  • the processor 801 is configured to invoke the executable program code to perform the following operations:
  • the third indication information from the network device, where the third indication information is physical layer control signaling, and the third indication information is used to indicate frequency domain resources of the physical random access channel of the user equipment.
  • the time domain resource, the random access resource determined by the frequency domain resource and the time domain resource is used to carry random access information of the user equipment.
  • the third indication information includes a second indication field, where the second indication field is used to indicate the frequency domain resource.
  • the third indication information is carried on the time domain resource unit n;
  • the time domain resource is a time domain resource unit n+k separated from the time domain resource unit n by a time domain resource unit, where the time domain resource unit is a transmission time interval on a preset time domain, or The time domain resource unit is a transmission time period on a preset time domain, n is an integer greater than or equal to 0, and k is an integer greater than or equal to 0.
  • the format of the third indication information is a preset format, where the preset format is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the time domain resource is determined by the user equipment when detecting that the format of the third indication information is a preset format.
  • the third indication information is scrambled according to the preset identifier, where the preset identifier is used by the user equipment to descramble the third indication information, and determining that the time domain resource unit n+k is used as Time domain resources of the physical random access channel.
  • the third indication information includes a third indication field, where the third indication field is used to indicate that the time domain resource unit n+k is used as a time domain resource of the physical random access channel.
  • the third indication field is further used to indicate a value of k.
  • the processor 801 herein may be a processor or a collective name of multiple processing elements.
  • the processor may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • DSPs digital singal processors
  • FPGAs Field Programmable Gate Arrays
  • the communication interface 802 can include one or more of an antenna, at least one amplifier, a transceiver, a coupler, an LNA (Low Noise Amplifier), a duplexer, and the like.
  • the communication interface 804 can also communicate with the network device via wireless communication, which can use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service) , General Packet Radio Service), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), e-mail, SMS ( Short Messaging Service, short message service, etc.
  • GSM Global System of Mobile communication
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • SMS Short Messaging Service, short message service, etc.
  • the memory 803 may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code or parameters, data, and the like required for the operation of the access network management device.
  • the memory 703 may include random access memory (RAM), and may also include non-volatile memory such as a magnetic disk memory, a flash memory, or the like.
  • the bus 804 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus 804 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.
  • the user equipment may also include an input device 805 and an output device 806 coupled to bus 804 for connection to other portions, such as processor 801, via bus 804.
  • each unit function can be implemented based on the structure of the user equipment.
  • each step method flow may be implemented based on the network device shown in FIG. 7 and the structure of the user equipment shown in FIG. 8 described above.
  • the embodiment of the invention further provides a computer readable storage medium for storing computer software instructions for the network device, which comprises a program designed to execute the above method embodiment. Data transfer can be achieved by executing a stored program.
  • the embodiment of the invention further provides a computer readable storage medium for storing computer software instructions for the user equipment, which comprises a program designed to execute the above method embodiment. Data transfer can be achieved by executing a stored program.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or in other distributed forms, such as over the Internet or other wired or wireless telecommunication systems.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明实施例公开了一种数据传输方法、网络设备及用户设备，包括：网络设备向用户设备发送第一指示信息和第二指示信息，第一指示信息用于指示用户设备的物理随机接入信道的频域资源，第二指示信息为物理层控制信令，第二指示信息用于指示物理随机接入信道的时域资源，频域资源和时域资源对应的随机接入资源用于承载用户设备的随机接入信息。本发明实施例，通过物理层控制信令动态指示随机接入信道的资源，有利于提高随机接入资源的分配灵活性。

Description

一种数据传输方法、网络设备及用户设备 技术领域
本发明涉及无线通信技术领域，尤其涉及一种数据传输方法、网络设备及用户设备。
背景技术
现有长期演进(Long Term Evolution，LTE)通信***中规定的用户设备UE的随机接入过程，必须由网络设备向UE发送包括预先定义好的随机接入资源索引号的***消息块SIB2广播消息，由UE根据该索引号查询预存的随机接入资源配置表，从而确定对应的可以发起随机接入过程的随机接入资源，且该随机接入资源在预先定义好的不同的上下行子帧配比下均有对应的明确定义。上述索引号是由网络设备通过高层信令(SIB2广播消息)半静态的提供，也就是说，UE是根据网络设备发送与上下行子帧配比关联的索引号，查表确定可以在哪些随机接入资源上发起随机接入过程。
本技术方案的发明人在研究过程中发现，由于上述半静态随机接入资源分配方案是在预先定义好的上下行子帧配比限定下的一种资源分配方案，这限制了通信***分配无线资源的灵活性，无法适用于小区的上下行资源由网络设备动态的决定的通信***。
发明内容
本发明实施例提供了一种数据传输方法、网络设备及用户设备，通过物理层控制信令动态指示随机接入信道的资源，以期提高随机接入资源的分配灵活性。
第一方面，本发明实施例提供了一种数据传输方法，包括：
网络设备向用户设备发送第一指示信息和第二指示信息，所述第一指示信息用于指示所述用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制信令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
进一步的，所述网络设备接收承载于所述随机接入资源上的所述用户设备的所述随机接入信息。
其中，所述第二指示信息具体可以是公共物理层下行控制信令，也可以是组物理层下行控制指令，在第二指示信息为公共物理层下行控制信令的情况下，网络设备向小区内的所有用户设备发送第二指示信息，在第二指示信息为组物理层下行控制信令的情况下，网络设备向小区内的部分用户设备发送第二指示信息。
可以看出，本发明实施例通过第一指示信息指示用户设备的物理随机接入信道的频域资源，通过第二指示信息指示物理随机接入信道的时域资源，且第二指示信息为物理层控制信令，相对于现有技术中通过周期性发送SIB广播消息来半静态指示随机接入资源的方法，由于物理层控制信令是实时通知的，故而通过该物理层控制信令能够动态指示随机接入信道的时域资源，因此，本发明实施例可以满足通信***动态指示随机接入资源的需求， 有利于提高随机接入资源的分配灵活性。
结合第一方面，在一些可能的实现方式中，所述第二指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
其中，所述传输时间间隔是指无线链路中的一个独立解码传输的长度，为逻辑层的时域资源单位概念，如LTE***中的传输时间间隔TTI参数；所述传输时间段是在物理层分配时域资源的一个时长参数，为物理层的时域资源单位概念，如LTE***中的子帧subframe参数。
结合第一方面，在一些可能的实现方式中，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述预设标识可以是预先设置的用于加扰和解扰第二指示信息的特定无线网络临时标识RNTI，所述预设标识用于标识时域资源单元n+k用作所述物理随机接入信道的时域资源，例如，可以是物理随机接入信道无线网络临时标识。
结合第一方面，在一些可能的实现方式中，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述第一指示域例如可以是第二指示信息中的一个承载有0或1标识信息的比特位，网络设备可以设置0或1标识信息用于向用户设备指示时域资源单元n+k用作所述物理随机接入信道的时域资源。
结合第一方面，在一些可能的实现方式中，所述第一指示域还用于指示k的取值。
其中，所述第一指示域例如可以是第二指示信息中的3个承载有0或1标识信息的比特位，该3个比特位用于指示k的具体取值。如000对应k＝0，001对应k＝1，010对应k＝2,011对应k＝3，100对应k＝4,101对应k＝5,110对应k＝6,111对应k＝7。
结合第一方面，在一些可能的实现方式中，所述第一指示信息包括***消息或无线资源控制信令。
第二方面，本发明实施例提供了一种数据传输方法，包括：
网络设备向用户设备发送第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示所述用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
进一步的，所述网络设备接收承载于所述随机接入资源上的所述用户设备的所述随机接入信息。
其中，所述第三指示信息具体可以是公共物理层下行控制信令，也可以是组物理层下行控制指令，在第三指示信息为公共物理层下行控制信令的情况下，网络设备向小区内的所有用户设备发送第三指示信息，在第三指示信息为组物理层下行控制信令的情况下，网络设备向小区内的部分用户设备发送第三指示信息。
可以看出，本发明实施例通过第三指示信息指示用户设备的物理随机接入信道的频域资源和时域资源，且第三指示信息为物理层控制信令，相对于现有技术中通过周期性发送SIB广播消息来半静态指示随机接入资源的方法，由于物理层控制信令是实时通知的，故而通过该物理层控制信令能够动态指示随机接入信道的时频资源，因此，本发明实施例可以满足通信***动态指示随机接入资源的需求，有利于提高随机接入资源的分配灵活性。
结合第二方面，在一些可能的实现方式中，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
其中，所述第二指示域例如可以是第三指示信息中的承载有多个0或1标识信息的比特位，该比特位用于指示时域资源单元上的具体哪一部分频域资源可以作为用户设备的物理随机接入信道的频域资源，如比特位对应的标识信息序列001用于指示索引为1的频域资源作为物理随机接入信道的频域资源。
结合第二方面，在一些可能的实现方式中，所述第三指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
其中，所述传输时间间隔是指无线链路中的一个独立解码传输的长度，为逻辑层的时域资源单位概念，如LTE***中的传输时间间隔TTI参数；所述传输时间段是在物理层分配时域资源的一个时长参数，为物理层的时域资源单位概念，如LTE***中的子帧subframe参数。
结合第二方面，在一些可能的实现方式中，所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
结合第二方面，在一些可能的实现方式中，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述预设标识可以是预先设置的用于加扰和解扰第三指示信息的特定无线网络临时标识RNTI，例如，可以是物理随机接入信道无线网络临时标识。
结合第二方面，在一些可能的实现方式中，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述第三指示域例如可以是第三指示信息中的一个承载有0或1标识信息的比特位，网络设备可以设置0或1标识信息用于向用户设备指示时域资源单元n+k用作所述物理随机接入信道的时域资源。
结合第二方面，在一些可能的实现方式中，所述第三指示域还可以用于指示k的取值。
其中，所述第三指示域例如可以是第三指示信息中的3个承载有0或1标识信息的比特位，该3个比特位用于指示k的具体取值。如000对应k＝0，001对应k＝k1，010对应k＝2,011对应k＝3，100对应k＝4,101对应k＝5,110对应k＝6,111对应k＝7。
第三方面，本发明实施例提供了一种数据传输方法，包括：
用户设备接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息用于指示用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制指令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
进一步的，所述用户设备根据所述第一指示信息确定物理随机接入信道的频域资源，根据所述第二指示信息确定所述物理随机接入信道的时域资源，以及在所述频域资源和所述时域资源所确定的随机接入资源上承载随机接入信息，并向所述网络设备发送所述随机接入信息。
其中，所述第二指示信息具体可以是公共物理层下行控制信令，也可以是组下行控制指令，在第二指示信息为公共物理层下行控制信令的情况下，网络设备向小区内的所有用户设备发送第二指示信息，在第二指示信息为组物理层下行控制信令的情况下，网络设备向小区内的部分用户设备发送第二指示信息。
可以看出，本发明实施例通过第一指示信息指示用户设备的物理随机接入信道的频域资源，通过第二指示信息指示物理随机接入信道的时域资源，且第二指示信息为物理层控制信令，相对于现有技术中通过周期性发送SIB广播消息来半静态指示随机接入资源的方法，由于物理层控制信令是实时通知的，故而通过该物理层控制信令能够动态指示随机接入信道的时域资源，因此，本发明实施例可以满足通信***动态指示随机接入资源的需求，有利于提高随机接入资源的分配灵活性。
结合第三方面，在一些可能的实现方式中，所述第二指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
其中，所述传输时间间隔是指无线链路中的一个独立解码传输的长度，为逻辑层的时域资源单位概念，如LTE***中的传输时间间隔TTI参数；所述传输时间段是在物理层分配时域资源的一个时长参数，为物理层的时域资源单位概念，如LTE***中的子帧subframe参数。
结合第三方面，在一些可能的实现方式中，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述预设标识用于标识时域资源单元n+k用作所述物理随机接入信道的时域资源，所述预设标识可以是预先设置的用于加扰和解扰第二指示信息的特定无线网络临时标识RNTI，例如，可以是物理随机接入信道无线网络临时标识。
结合第三方面，在一些可能的实现方式中，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述第一指示域例如可以是第二指示信息中的一个承载有0或1标识信息的比特位，网络设备可以设置0或1标识信息用于向用户设备指示时域资源单元n+k用作所述 物理随机接入信道的时域资源。
结合第三方面，在一些可能的实现方式中，所述第一指示域还用于指示k的取值。
其中，所述第一指示域例如可以是第二指示信息中的3个承载有0或1标识信息的比特位，该3个比特位用于指示k的具体取值。如000对应k＝0，001对应k＝k1，010对应k＝2,011对应k＝3，100对应k＝4,101对应k＝5,110对应k＝6,111对应k＝7。
结合第三方面，在一些可能的实现方式中，所述第一指示信息包括***消息或无线资源控制信令。
第四方面，本发明实施例提供了一种数据传输方法，包括：
用户设备接收来自网络设备的第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
进一步的，所述用户设备根据所述第三指示信息确定物理随机接入信道的时域资源和频域资源，以及在所述频域资源和所述时域资源所确定的随机接入资源上承载随机接入信息，并向所述网络设备发送所述随机接入信息。
其中，所述第三指示信息具体可以是公共物理层下行控制信令，也可以是组物理层下行控制指令，在第三指示信息为公共物理层下行控制信令的情况下，网络设备向小区内的所有用户设备发送第三指示信息，在第三指示信息为组物理层下行控制信令的情况下，网络设备向小区内的部分用户设备发送第三指示信息。
可以看出，本发明实施例通过第三指示信息指示用户设备的物理随机接入信道的频域资源和时域资源，且第三指示信息为物理层控制信令，相对于现有技术中通过周期性发送SIB广播消息来半静态指示随机接入资源的方法，由于物理层控制信令是实时通知的，故而通过该物理层控制信令能够动态指示随机接入信道的时频资源，因此，本发明实施例可以满足通信***动态指示随机接入资源的需求，有利于提高随机接入资源的分配灵活性。
结合第四方面，在一些可能的实现方式中，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
其中，所述第二指示域例如可以是第三指示信息中的承载有多个0或1标识信息的比特位，该比特位用于指示时域资源单元上的具体哪一部分频域资源可以作为用户设备的物理随机接入信道的频域资源，如比特位对应的标识信息序列001用于指示索引为1的频域资源作为物理随机接入信道的频域资源。
结合第四方面，在一些可能的实现方式中，所述第三指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
其中，所述传输时间间隔是指无线链路中的一个独立解码传输的长度，为逻辑层的时域资源单位概念，如LTE***中的传输时间间隔TTI参数；所述传输时间段是在物理层分配时域资源的一个时长参数，为物理层的时域资源单位概念，如LTE***中的子帧subframe 参数。
结合第四方面，在一些可能的实现方式中，所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
所述时域资源是所述用户设备在检测到所述第三指示信息的格式为预设格式的情况下确定的。
结合第四方面，在一些可能的实现方式中，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述预设标识可以是预先设置的用于加扰和解扰第三指示信息的特定无线网络临时标识RNTI，例如，可以是物理随机接入信道无线网络临时标识。
结合第四方面，在一些可能的实现方式中，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述第三指示域例如可以是第三指示信息中的一个承载有0或1标识信息的比特位，网络设备可以设置0或1标识信息用于向用户设备指示时域资源单元n+k用作所述物理随机接入信道的时域资源。
结合第四方面，在一些可能的实现方式中，所述第三指示域还用于指示k的取值。
其中，所述第三指示域例如可以是第三指示信息中的3个承载有0或1标识信息的比特位，该3个比特位用于指示k的具体取值。如000对应k＝0，001对应k＝k1，010对应k＝2,011对应k＝3，100对应k＝4,101对应k＝5,110对应k＝6,111对应k＝7。
第五方面，本发明实施例提供了一种网络设备，所述网络设备包括功能模块，所述功能模块用于执行本发明实施例第一方面或第二方面任一方法中所描述的部分或全部步骤。
第六方面，本发明实施例提供了一种用户设备，所述用户设备包括功能模块，所述功能模块用于执行本发明实施例第三方面或第四方面任一方法中所描述的部分或全部步骤。
第七方面，本发明实施例提供了一种网络设备，包括：
处理器、接口电路、存储器和总线，所述处理器、所述接口电路和所述存储器通过所述总线连接并完成相互间的通信；
所述接口电路用于在所述处理器的控制下与用户设备进行通信，所述存储器存储有可执行程序代码；
所述处理器用于调用所述可执行程序代码，执行如本发明实施例第一方面或第二方面任一法中所描述的部分或全部步骤。
第八方面，本发明实施例提供了一种用户设备，包括：
处理器、存储器、通信接口和总线，所述处理器、所述存储器和所述通信接口通过所述总线连接并完成相互间的通信；
所述通信接口用于与网络设备进行通信，所述存储器存储有可执行程序代码；
所述处理器用于调用所述可执行程序代码，执行如本发明实施例第三方面或第四方面任一方法中所描述的部分或全部步骤。
第九方面，本发明实施例提供了一种计算机可读存储介质，所述计算机可读存储介质 存储了程序代码。所述程序代码包括用于执行本发明实施例第一方面或第二方面任一方法中所描述的部分或全部步骤的指令。
第十方面，本发明实施例提供了一种计算机可读存储介质，所述计算机可读存储介质存储了程序代码。所述程序代码包括用于执行本发明实施例第三方面或第四方面任一方法中所描述的部分或全部步骤的指令。
附图说明
为了更清楚地说明本发明实施例，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1是现有技术中3GPP中eIMTA使用的7种时分双工TDD上下行子帧配置示意图；
图2是本发明实施例提供的一种示例通信***的***架构图；
图3是本发明实施例提供的一种数据传输方法的流程示意图；
图3.1是本发明实施例提供的一种物理随机接入信道的时频资源的示意图；
图3.2是本发明实施例提供的另一种物理随机接入信道的时频资源的示意图；
图4是本发明实施例提供的另一种数据传输方法的流程示意图；
图4.1是本发明实施例提供的又一种物理随机接入信道的时频资源的示意图；
图5是本发明实施例提供的一种网络设备的功能单元框图；
图6是本发明实施例提供的一种用户设备的功能单元框图；
图7是本发明实施例提供的一种网络设备的结构示意图；
图8是本发明实施例提供的一种用户设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行描述。
为便于理解本发明实施例的技术方案，这里首先介绍一下现有长期演进(Long Term Evolution，LTE)通信***中的随机接入资源的分配方案，如图1所示，图1是目前第三代伙伴计划协议(3rd Generation Partnership Project，3GPP)的增强干扰管理和业务自适应(enhanced Interference Management and Traffic Adaptation，eIMTA)协议中规定的7种时分双工(Time Division Duplexing，TDD)上下行子帧配置示意图。LTE通信***的随机接入过程中，基站通过高层消息(SIB2广播消息)通知小区的用户设备(User Equipment，UE)该小区可用的物理随机接入信道PRACH时频资源集合。如表1所示，表1是当前3GPP36.211中为TDD帧结构定义的可以用于随机接入的时频资源列表。表中每一行代表一种随机接入资源的配置，具体由索引号PRACH configuration index指示，且在不同的上下行链路子帧配比(Up Link/Down Link configuration，UL/DL configuration)下每一种随机接入资源配置均有明确定义；表中每个四元元素组
Figure PCTCN2017084173-appb-000001
唯一指定一个特定的随机接入资源，其中元素组中的第一个元素fRA用于指示随机接入资源的频域资源，如元素组(0,1,0,2)中的第一个元素0用于指示随机接入资源的频域资源为索引为0的频域资源，第二个元素
Figure PCTCN2017084173-appb-000002
用于指示发送前导码Preamble的***帧，
Figure PCTCN2017084173-appb-000003
为0时，表示所有***帧均可 以发送Preamble，
Figure PCTCN2017084173-appb-000004
为1时，表示偶数***帧可以发送Preamble，
Figure PCTCN2017084173-appb-000005
为2时表示奇数***帧可以发送Preamble；第三个元素
Figure PCTCN2017084173-appb-000006
用于指示Preamble是位于一个***帧的前半帧或者后半帧，
Figure PCTCN2017084173-appb-000007
为0时，表示Preamble位于一个***帧的前半帧，
Figure PCTCN2017084173-appb-000008
为1时，表示Preamble位于一个***帧的后半帧；第四个元素
Figure PCTCN2017084173-appb-000009
用于指定Preamble起始的上行子帧号，该子帧号位于两个连续的上行下行交换点downlink-to-uplink switch point之间，且从0开始计数，前导码格式Preamble Format4是个例外，其
Figure PCTCN2017084173-appb-000010
标记为(*)。索引号PRACH configuration index由高层信令(SIB2广播消息)半静态的提供。
表1 LTE TDD随机接入时频资源配置
Figure PCTCN2017084173-appb-000011
Figure PCTCN2017084173-appb-000012
从上表中可以看出，当前LTE通信***的TDD技术中，基站半静态的指定了某个索引号PRACH configuration index后，UE可以确定不同的上下行子帧配比对应的随机接入资源，也就是说，UE必须接收基站发送的预先定义好的上下行子帧配比，才可以通过查表确定应该在哪些时频资源上发起随机接入过程。而未来通信***(如第五代网络(5th Generation，5G)通信***，目前标准中5G通信***的相关技术的正式名称为新空口(New Radio，NR)技术)为了更加高效的使用有限的无线资源，动态时分双工(Dynamic-Time Division Duplexing，D-TDD)技术将会成为提高无线资源利用灵活性的必要技术，在D-TDD技术中，小区的上下行资源将由网络侧动态的决定，即不再有预先定义好的有限的上下行子帧配置，使得现有方案通过高层信令半静态提供索引号来指示随机接入资源的方案不再适用。
在上述现有技术背景下，本发明实施例提供了一种数据传输方法、网络设备及用户设备，用于未来通信***中动态指示物理随机接入信道的时频资源。请参阅图2，图2是本发明实施例提供的一种示例通信***的***架构图，包括核心网设备、网络设备和用户设备。该示例通信***可以是LTE通信***，也可以是利用5G新空口NR技术的未来通信***。以LTE通信***为例，核心网设备例如可以包括移动性管理实体(Mobility Management Entity，MME)或服务网关(Serving GateWay，S-GW)，其中MME主要负责信令处理部分，即控制面功能，包括接入控制、移动性管理、附着与去附着、会话管理功能以及网关选择等功能。S-GW主要负责用户数据转发的用户面功能，即在MME的控制下进行数据包的路由和转发。网络设备例如可以包括演进型移动基站(Evolved Node B，eNode B)，也可以为未来5G网络中的基站，主要负责空口侧的无线资源管理、服务质量(Quality of Service，QoS)管理、数据压缩和加密等功能中的至少一项。往核心网侧，eNode B主要负责向MME转发控制面信令以及向S-GW转发用户面业务数据。用户设备UE例如可以包括具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制 解调器的其它处理设备，以及移动台(Mobile station,简称MS)，终端设备(Terminal Equipment)等等，为方便描述，本申请中，简称为用户设备或UE。
下面结合附图详细描述本发明的实施例，以便本领域技术人员理解。
如图3所示，本发明实施例提供的一种数据传输方法包括以下步骤：
S301，网络设备向用户设备发送第一指示信息和第二指示信息，所述第一指示信息用于指示所述用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制信令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
S302，用户设备接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息用于指示用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制指令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
进一步的，所述用户设备根据所述第一指示信息确定物理随机接入信道的频域资源，根据所述第二指示信息确定所述物理随机接入信道的时域资源，以及在所述频域资源和所述时域资源所确定的随机接入资源上承载随机接入信息，并向所述网络设备发送所述随机接入信息。
进一步的，所述网络设备接收承载于所述随机接入资源上的所述用户设备的所述随机接入信息。
其中，所述第二指示信息具体可以是公共物理层下行控制信令，也可以是组物理层下行控制指令，在第二指示信息为公共物理层下行控制信令的情况下，网络设备向小区内的所有用户设备发送第二指示信息，在第二指示信息为组物理层下行控制信令的情况下，网络设备向小区内的部分用户设备发送第二指示信息。
其中，所述第一指示信息包括***消息或无线资源控制信令。
可以看出，本发明实施例通过第一指示信息指示用户设备的物理随机接入信道的频域资源，通过第二指示信息指示物理随机接入信道的时域资源，且第二指示信息为物理层控制信令，相对于现有技术中通过周期性发送SIB广播消息来半静态指示随机接入资源的方法，由于物理层控制信令是实时通知的，故而通过该物理层控制信令能够动态指示随机接入信道的时域资源，因此，本发明实施例可以满足通信***动态指示随机接入资源的需求，有利于提高随机接入资源的分配灵活性。
具体实现中，所述第二指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
其中，所述传输时间间隔是指无线链路中的一个独立解码传输的长度，为逻辑层的时域资源单位概念，如LTE***中的传输时间间隔(Transmission Time Interval，TTI)参数；所述传输时间段是在物理层分配时域资源的一个时长参数，为物理层的时域资源单位概念，如LTE***中的子帧subframe参数。
可选的，本发明实施例中，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述预设标识用于标识时域资源单元n+k用作所述物理随机接入信道的时域资源，所述预设标识可以是预先设置的用于加扰和解扰第二指示信息的特定无线网络临时标识(Radio Network Temporary Identifier，RNTI)，例如，可以是物理随机接入信道无线网络临时标识。
举例来说，请参阅图3.1，图3.1是本发明实施例提供的一种物理随机接入信道的时频资源的示意图。假设第一指示信息为***消息块(System Information Block，SIB)广播消息，SIB广播消息指示小区内UE的物理随机接入信道(Physical Random Access Channel，PRACH)可以使用的频域资源，如图3.1中的虚线框所示，第二指示信息为下行控制消息(Downlink Control Information，DCI)，其中，第一、第二、第三时域资源单元的DCI为未使用物理随机接入信道无线网络临时标识加扰的DCI，第四、第五时域资源单元的DCI为使用物理随机接入信道无线网络临时标识加扰的DCI。网络设备与用户设备之间的随机接入过程可以包括：
网络设备向用户设备发送所述SIB广播消息和所述DCI；
用户设备接收来自网络设备的所述SIB广播消息和所述DCI，根据所述SIB广播消息确定小区内的UE的PRACH可以使用的频域资源F1，使用物理随机接入信道无线网络临时标识解扰DCI，解扰第四时域资源单元和第五时域资源单元中的DCI成功后，确定第四时域资源单元和第五时域资源单元中的频域资源F1为PRACH可以使用的随机接入资源，即图中虚线框和实线框共同标注的资源，并在该随机接入资源上承载随机接入信息，以及向网络设备发送随机接入信息；
网络设备接收用户设备发送的承载于所述随机接入资源上的随机接入信息。
可选的，本发明实施例中，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述第一指示域例如可以是第二指示信息中的一个承载有0或1标识信息的比特位，网络设备可以设置0或1标识信息用于向用户设备指示时域资源单元n+k用作所述物理随机接入信道的时域资源。
举例来说，请参阅图3.2，图3.2是本发明实施例提供的另一种物理随机接入信道的时频资源的示意图。假设第一指示信息为***消息块SIB广播消息，SIB广播消息指示UE小区内的物理随机接入信道PRACH可以使用的频域资源如图3.2中的虚线框所示，第二指示信息为下行控制消息DCI，DCI中包含第一指示域，第一指示域为承载0或1标识信息的比特位，1代表当前DCI对应的时域资源单元用作用户设备的物理随机接入信道的时域资源，如图3.2中的实线框所示，第一、第二、第三时域资源单元的DCI中的第一指示域的标识信息为0，对应的时域资源单元不作为PRACH的时域资源，第四、第五时域资源单元的DCI中的第一指示域的标识信息为1，对应的时域资源单元作为PRACH的时域资源。网络设备与用户设备之间的随机接入过程具体可以包括：
网络设备向用户设备发送所述SIB广播消息和所述DCI；
用户设备接收来自网络设备的所述SIB广播消息和所述DCI，根据所述SIB广播消息确定小区内的UE的PRACH可以使用的频域资源F2，检测到第四时域资源单元和第五时域资源单元的DCI中的第一指示域为1，确定第四时域资源单元和第五时域资源单元中的频域资源F2为PRACH可以使用的随机接入资源，即图中虚线框和实线框共同标注的资源，并在该随机接入资源上承载随机接入信息，以及向网络设备发送随机接入信息；
网络设备接收用户设备发送的承载于所述随机接入资源上的随机接入信息。
进一步可选的，本发明实施例中，所述第一指示域还用于指示k的取值。
其中，所述第一指示域例如可以是第二指示信息中的3个承载有0或1标识信息的比特位，该3个比特位用于指示k的具体取值。如000对应k＝0，001对应k＝1，010对应k＝2,011对应k＝3，100对应k＝4,101对应k＝5,110对应k＝6,111对应k＝7。
如图4所示，本发明实施例提供的另一种数据传输方法包括以下步骤：
S401，网络设备向用户设备发送第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示所述用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
S402，用户设备接收来自网络设备的第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示所述用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
进一步的，所述用户设备根据所述第三指示信息确定物理随机接入信道的时域资源和频域资源，以及在所述频域资源和所述时域资源所确定的随机接入资源上承载随机接入信息，并向所述网络设备发送所述随机接入信息。
进一步的，所述网络设备接收承载于所述随机接入资源上的所述用户设备的所述随机接入信息。
其中，所述第三指示信息具体可以是公共物理层下行控制信令，也可以是组物理层下行控制指令，在第三指示信息为公共物理层下行控制信令的情况下，网络设备向小区内的所有用户设备发送第三指示信息，在第三指示信息为组物理层下行控制信令的情况下，网络设备向小区内的部分用户设备发送第三指示信息。
可以看出，本发明实施例通过第三指示信息指示用户设备的物理随机接入信道的频域资源和时域资源，且第三指示信息为物理层控制信令，相对于现有技术中通过周期性发送SIB广播消息来半静态指示随机接入资源的方法，由于物理层控制信令是实时通知的，故而通过该物理层控制信令能够动态指示随机接入信道的时频资源，因此，本发明实施例可以满足通信***动态指示随机接入资源的需求，有利于提高随机接入资源的分配灵活性。
可选的，本发明实施例中，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
其中，所述第二指示域例如可以是第三指示信息中的承载有多个0或1标识信息的比特位，该比特位用于指示时域资源单元上的具体哪一部分频域资源可以作为用户设备的物理随机接入信道的频域资源，如比特位对应的标识信息序列001用于指示索引为1的频域资源作为物理随机接入信道的频域资源。
举例来说，请参阅图4.1，图4,1是本发明实施例提供的又一种物理随机接入信道的时频资源的示意图。假设第三指示信息为下行控制消息DCI，该DCI中包括第二指示域，如图所示，当UE在下行链路(Down Link，DL)控制域中检测到第四和第五时域资源单元包括DCI，确定第四和第五时域资源可以用作UE的PRACH的时域资源，其次，根据DCI中的第二指示域确定频域资源的位置，如001对应图中的PRACH频域位置。
可选的，本发明实施例中，所述第三指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
其中，所述传输时间间隔是指无线链路中的一个独立解码传输的长度，为逻辑层的时域资源单位概念，如LTE***中的传输时间间隔TTI参数；所述传输时间段是在物理层分配时域资源的一个时长参数，为物理层的时域资源单位概念，如LTE***中的子帧subframe参数。
可选的，本发明实施例中，所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，本发明实施例中，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述预设标识可以是预先设置的用于加扰和解扰第三指示信息的特定无线网络临时标识RNTI，例如，可以是物理随机接入信道无线网络临时标识。
可选的，本发明实施例中，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
其中，所述第三指示域例如可以是第三指示信息中的一个承载有0或1标识信息的比特位，网络设备可以设置0或1标识信息用于向用户设备指示时域资源单元n+k用作所述物理随机接入信道的时域资源。
进一步可选的，本发明实施例中，所述第三指示域还用于指示k的取值。
其中，所述第三指示域例如可以是第三指示信息中的3个承载有0或1标识信息的比特位，该3个比特位用于指示k的具体取值。如000对应k＝0，001对应k＝1，010对应k＝2,011对应k＝3，100对应k＝4,101对应k＝5,110对应k＝6,111对应k＝7。
下面结合附图描述本发明实施例用于实现以上方法的装置。
请参阅图5，图5是本发明实施例提供的一种网络设备的功能单元框图。
如图5所示，该网络设备500可以包括发送单元501，其中：
所述发送单元501，用于向用户设备发送第一指示信息和第二指示信息，所述第一指示信息用于指示所述用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制信令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
其中，所述第一指示信息包括***消息或无线资源控制信令。
可选的，所述第二指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第一指示域还用于指示k的取值。
或者，
上述网络设备500的发送单元501用于向用户设备发送第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示所述用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
其中，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
可选的，所述第三指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
进一步可选的，所述第三指示域还用于指示k的取值。
需要说明的是，上述各单元(发送单元501)可以用于执行上述方法实施例的相关步骤。
在本实施例中，网络设备500是以单元的形式来呈现。这里的“单元”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。本领域技术员人可以知晓该网络设备500的组成形式具体可以是图7所示的网络设备。
举例来说，上述发送单元501的功能可以由图7所示的网络设备来实现，具体可以是处理器701调用存储器703中的可执行程序代码，通过接口电路702向用户设备发送第一指示信息和第二指示信息，或者，通过接口电路702向用户设备发送第三指示信息。
可以看出，本发明实施例可以满足通信***动态指示随机接入资源的需求，有利于提高随机接入资源的分配灵活性。
请参阅图6，图6是本发明实施例提供的一种用户设备的功能单元框图。
如图6所示，该用户设备600可以包括接收单元601，其中：
所述接收单元，用于接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息用于指示所述用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制指令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
其中，所述第一指示信息包括***消息或无线资源控制信令。
可选的，所述第二指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第一指示域还用于指示k的取值。
或者，
所述用户设备600的接收单元601用于：接收来自网络设备的第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示所述用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
可选的，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
可选的，所述第三指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
所述时域资源是所述用户设备在检测到所述第三指示信息的格式为预设格式的情况下确定的。
可选的，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰 所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
进一步可选的，所述第三指示域还用于指示k的取值。
需要说明的是，上述各单元(接收单元601)用于执行上述方法的相关步骤。
在本实施例中，用户设备600是以单元的形式来呈现。这里的“单元”可以指特定应用集成电路(application-specific integrated circuit，ASIC)，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。本领域技术员人可以知晓该用户设备600的组成形式具体可以是图8所示的用户设备。
举例来说，上述接收单元601的功能可以由图8所示的用户设备来实现，具体可以是处理器801调用存储器803中的可执行程序代码，通过通信接口802向网络设备发送第一指示信息和第二指示信息，或者，通过通信接口802向网络设备发送第三指示信息。
可以看出，本发明实施例可以满足通信***动态指示随机接入资源的需求，有利于提高随机接入资源的分配灵活性。
请参阅图7，图7是本发明实施例提供的一种网络设备的结构示意图。
如图所示，本发明实施例提供的网络设备包括处理器701和接口电路702、存储器703和总线704，该处理器701、接口电路702和存储器703通过总线704连接并完成相互间的通信。
可选的，所述网络设备还包括通信接口705，用于与网络侧的其他设备之间的通信，其中，网络侧的其他设备包括但不限于其他网络设备，或，核心网设备。
所述接口电路702用于在所述处理器701的控制下与用户设备进行通信，所述存储器703存储有可执行程序代码；
所述处理器701用于调用所述可执行程序代码，执行以下操作：
通过所述接口电路702向用户设备发送第一指示信息和第二指示信息，所述第一指示信息用于指示所述用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制信令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
其中，所述第一指示信息包括***消息或无线资源控制信令。
可选的，所述第二指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第一指示域还用于指示k的取值。
或者，
所述处理器701用于调用所述可执行程序代码，执行以下操作：
通过所述接口电路702向用户设备发送第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示所述用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
可选的，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
可选的，所述第三指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示域还用于指示k的取值。
需要说明的是，这里的处理器701可以是一个处理器，也可以是多个处理元件的统称。例如，该处理器可以是中央处理器(Central Processing Unit，CPU)，也可以是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)。
存储器703可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或接入网管理设备运行所需要参数、数据等。且存储器703可以包括随机存储器(RAM)，也可以包括非易失性存储器(non-volatile memory)，例如磁盘存储器，闪存(Flash)等。
总线704可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。该总线704可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
前述图5所示的实施例中，各单元功能可以基于该网络设备的结构实现。
请参阅图8，图8是本发明实施例提供的一种用户设备的结构示意图。
如图所示，本发明实施例提供的用户设备包括处理器801和通信接口802、存储器803和总线804，该处理器801、通信接口802和存储器803通过总线804连接并完成相互间的 通信。
所述通信接口802用于在所述处理器801的控制下与网络设备进行通信，所述存储器803存储有可执行程序代码；
所述处理器801用于调用所述可执行程序代码，执行以下操作：
通过所述通信接口802接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息用于指示用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制指令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
其中，所述第一指示信息包括***消息或无线资源控制信令。
可选的，所述第二指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第一指示域还用于指示k的取值。
或者，
所述处理器801用于调用所述可执行程序代码，执行以下操作：
通过所述通信接口802接收来自网络设备的第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
可选的，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
可选的，所述第三指示信息承载于时域资源单元n上；
所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
可选的，所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
所述时域资源是所述用户设备在检测到所述第三指示信息的格式为预设格式的情况下确定的。
可选的，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
可选的，所述第三指示域还用于指示k的取值。
需要说明的是，这里的处理器801可以是一个处理器，也可以是多个处理元件的统称。例如，该处理器可以是中央处理器(Central Processing Unit，CPU)，也可以是特定集成电路(Application Specific Integrated Circuit，ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)。
通信接口802可以包括天线、至少一个放大器、收发信机、耦合器、LNA(Low Noise Amplifier，低噪声放大器)、双工器等中的一项或多项。通信接口804还可以通过无线通信与网络设备通信，所述无线通信可以使用任一通信标准或协议，包括但不限于GSM(Global System of Mobile communication，全球移动通讯***)、GPRS(General Packet Radio Service，通用分组无线服务)、CDMA(Code Division Multiple Access，码分多址)、WCDMA(Wideband Code Division Multiple Access,宽带码分多址)、LTE(Long Term Evolution,长期演进)、电子邮件、SMS(Short Messaging Service，短消息服务)等。
存储器803可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码或接入网管理设备运行所需要参数、数据等。且存储器703可以包括随机存储器(RAM)，也可以包括非易失性存储器(non-volatile memory)，例如磁盘存储器，闪存(Flash)等。
总线804可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。该总线804可以分为地址总线、数据总线、控制总线等。为便于表示，图8中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
该用户设备还可以包括输入设备805和输出设备806，连接于总线804，以通过总线804与处理器801等其它部分连接。
前述图6所示的实施例中，各单元功能可以基于该用户设备的结构实现。
前述图3和图4所示的实施例中，各步骤方法流程可以基于图7所示的网络设备和上述图8所示的用户设备的结构实现。
本发明实施例还提供了一种计算机可读存储介质，用于储存为上述网络设备所用的计算机软件指令，其包含用于执行上述方法实施例所设计的程序。通过执行存储的程序，可以实现数据传输。
本发明实施例还提供了一种计算机可读存储介质，用于储存为上述用户设备所用的计算机软件指令，其包含用于执行上述方法实施例所设计的程序。通过执行存储的程序，可以实现数据传输。
尽管在此结合各实施例对本发明进行了描述，然而，在实施所要求保护的本发明过程中，本领域技术人员通过查看所述附图、公开内容、以及所附权利要求书，可理解并实现所述公开实施例的其他变化。在权利要求中，“包括”(comprising)一词不排除其他组成部分或步骤，“一”或“一个”不排除多个的情况。单个处理器或其他单元可以实现权利要求 中列举的若干项功能。相互不同的从属权利要求中记载了某些措施，但这并不表示这些措施不能组合起来产生良好的效果。
本领域技术人员应明白，本发明的实施例可提供为方法、装置(设备)、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。计算机程序存储/分布在合适的介质中，与其它硬件一起提供或作为硬件的一部分，也可以采用其他分布形式，如通过Internet或其它有线或无线电信***。
本发明是参照本发明实施例的方法、装置(设备)和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上对本发明实施例进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (25)

  1. 一种数据传输方法，其特征在于，包括：
    向用户设备发送第一指示信息和第二指示信息，所述第一指示信息用于指示所述用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制信令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第二指示信息承载于时域资源单元n上；
    所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为时域上的传输时间间隔，或者，所述时域资源单元为时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
  3. 根据权利要求2所述的方法，其特征在于，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  4. 根据权利要求2所述的方法，其特征在于，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  5. [根据细则91更正 02.08.2017]　
    根据权利要求1-4任一项所述的方法，其特征在于，所述第一指示信息包括***消息或无线资源控制信令。
  6. 一种数据传输方法，其特征在于，包括：
    向用户设备发送第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示所述用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
  7. 根据权利要求6所述的方法，其特征在于，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
  8. 根据权利要求6或7任一项所述的方法，其特征在于，所述第三指示信息承载于时域资源单元n上；
    所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
  9. 根据权利要求8所述的方法，其特征在于，
    所述第三指示信息的格式为预设格式，所述预设格式用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  10. 根据权利要求8所述的方法，其特征在于，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  11. 根据权利要求8所述的方法，其特征在于，所述第三指示信息包含第三指示域， 所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  12. 一种数据传输方法，其特征在于，包括：
    接收来自网络设备的第一指示信息和第二指示信息，所述第一指示信息用于指示用户设备的物理随机接入信道的频域资源，所述第二指示信息为物理层控制指令，所述第二指示信息用于指示所述物理随机接入信道的时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
  13. 根据权利要求12所述的方法，其特征在于，所述第二指示信息承载于时域资源单元n上；
    所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
  14. 根据权利要求13所述的方法，其特征在于，所述第二指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第二指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  15. 根据权利要求13所述的方法，其特征在于，所述第二指示信息包含第一指示域，所述第一指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  16. 根据权利要求12-15任一项所述的方法，其特征在于，所述第一指示信息包括***消息或无线资源控制信令。
  17. 一种数据传输方法，其特征在于，包括：
    接收来自网络设备的第三指示信息，所述第三指示信息为物理层控制信令，所述第三指示信息用于指示用户设备的物理随机接入信道的频域资源和时域资源，所述频域资源和所述时域资源所确定的随机接入资源用于承载所述用户设备的随机接入信息。
  18. 根据权利要求17所述的方法，其特征在于，所述第三指示信息包括第二指示域，所述第二指示域用于指示所述频域资源。
  19. 根据权利要求17或18任一项所述的方法，其特征在于，所述第三指示信息承载于时域资源单元n上；
    所述时域资源为与所述时域资源单元n间隔k个时域资源单元的时域资源单元n+k，所述时域资源单元为预设的时域上的传输时间间隔，或者，所述时域资源单元为预设的时域上的传输时间段，n为大于或等于0的整数，k为大于或等于0的整数。
  20. 根据权利要求19所述的方法，其特征在于，所述时域资源是所述用户设备在检测到所述第三指示信息的格式为预设格式的情况下确定的。
  21. 根据权利要求19所述的方法，其特征在于，所述第三指示信息根据预设标识加扰，所述预设标识用于所述用户设备解扰所述第三指示信息，并确定所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  22. 根据权利要求19所述的方法，其特征在于，所述第三指示信息包含第三指示域，所述第三指示域用于指示所述时域资源单元n+k用作所述物理随机接入信道的时域资源。
  23. 一种网络设备，其特征在于，包括：
    处理器、接口电路、存储器和总线，所述处理器、所述接口电路和所述存储器通过所述总线连接并完成相互间的通信；
    所述接口电路用于在所述处理器的控制下与用户设备进行通信，所述存储器存储有可执行程序代码；
    所述处理器用于调用所述可执行程序代码，执行如权利要求1至11中任一权利要求所描述的方法。
  24. 一种用户设备，其特征在于，包括：
    处理器、存储器、通信接口和总线，所述处理器、所述存储器和所述通信接口通过所述总线连接并完成相互间的通信；
    所述通信接口用于与网络设备进行通信，所述存储器存储有可执行程序代码；
    所述处理器用于调用所述可执行程序代码，执行如权利要求12至22任一权利要求所描述的方法。
  25. 一种可读存储介质，其特征在于，包括指令，当所述指令被运行时，如权利要求1-22中任意一项所述的方法被实现。
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