WO2017185907A1 - 一种共享物理资源的方法和装置 - Google Patents

一种共享物理资源的方法和装置 Download PDF

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Publication number
WO2017185907A1
WO2017185907A1 PCT/CN2017/077360 CN2017077360W WO2017185907A1 WO 2017185907 A1 WO2017185907 A1 WO 2017185907A1 CN 2017077360 W CN2017077360 W CN 2017077360W WO 2017185907 A1 WO2017185907 A1 WO 2017185907A1
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Prior art keywords
terminal device
physical resources
physical
information
physical resource
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PCT/CN2017/077360
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English (en)
French (fr)
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李旭
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for sharing physical resources.
  • wireless communication is an important technology to promote the development of education, medical, business, government, car networking, and Internet of Things. Although the performance of wireless communication technology continues to improve, it still cannot meet the needs of some fields. Among them, delay and resource utilization are important indicators to measure the performance of wireless communication technologies.
  • a physical resource can be allocated in a grant-free mode.
  • the grant mode when the terminal device has data to send, it first applies for physical resources, then allocates physical resources through scheduling, and finally uses the allocated physical resources to send data.
  • Grant-free mode physical resources are pre-allocated for terminal devices. When the terminal device has data to send, it directly uses the pre-allocated physical resource to send data, and no longer needs to be scheduled. When the terminal device has no data to send, the pre-allocated physical resource is idle. Therefore, although the grant-free mode reduces latency, it also reduces resource utilization.
  • multiple terminal devices can share physical resources in grant-free mode. Pre-allocate multiple physical resources for multiple terminal devices.
  • the terminal device When the terminal device has data to be transmitted, the terminal device first selects a physical resource according to a certain method, and then sends the data using the selected physical resource.
  • the problems faced by this mode include: on the one hand, the amount of data that each terminal device needs to transmit may change dynamically, resulting in the dynamic change of the number of selected physical resources. On the other hand, when multiple terminal devices select the same physical resource at the same time, a conflict will occur.
  • ALOHA technology is an effective technology for sharing physical resources.
  • each terminal device can select and transmit the physical resource only at the beginning of one time segment.
  • the amount of data sent by the terminal device needs to match the physical resource granularity, that is, the amount of data sent each time must be less than or equal to the amount of data carried by one time segment of the physical resource.
  • the amount of data that each physical resource can carry in one time segment is getting smaller and smaller, and the amount of data that the terminal device needs to send each time may dynamically change when the terminal
  • the amount of data sent by the device does not match the granularity of the physical resource, that is, the amount of data that the terminal device needs to send is greater than the amount of data carried by one time segment of one physical resource, and the existing ALOHA technology cannot be directly used.
  • the embodiments of the present invention provide a method and an apparatus for sharing a physical resource, so as to solve the problem that the amount of data that the terminal device needs to send does not match the bearer granularity of the physical resource when the existing unlicensed mode shares the physical resource.
  • the first aspect provides a method for sharing a physical resource, where the application is applied to any one of the at least two terminal devices that share the at least one physical resource, including:
  • the terminal device acquires the group information of the terminal device, and the terminal device selects the indication information of any one of the physical resources, where the group information includes the number N of physical resources that can be shared in the packet and the attribute information of the physical resource.
  • the indication information is used to indicate a mapping relationship between the terminal device and any one of the physical resources, and the attribute information of the physical resource includes time-frequency information and encoding information of the physical resource;
  • the terminal device determines, according to the amount of data to be transmitted by the terminal device and the attribute information of the physical resource, the number Q of physical resources that the terminal device needs to use, 1 ⁇ Q ⁇ N;
  • the terminal device uses the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device, where N, X, and Q are positive integers, and 1 ⁇ X ⁇ Q.
  • the terminal device needs to determine the number of physical resources Q required by the terminal device according to the amount of data that the terminal device needs to transmit, and select at least one physical resource from the N physical resources to send the terminal device to be
  • the transmitted data solves the problem that the amount of data sent by the terminal device does not match the bearer granularity of the physical resource, reduces the probability of collision of the terminal device when sharing the physical resource, and improves the utilization of the physical resource.
  • the terminal device acquires the group information of the terminal device, and the terminal device selects the indication information of the any one of the physical resources, including:
  • the terminal device sends a resource request to the base station, where the resource request includes context information of the terminal device;
  • the terminal device receives, by the base station, packet information of a packet in which the terminal device is located based on the context information of the terminal device, and indication information that the terminal device selects any one of the physical resources.
  • the terminal device acquires the indication information that the terminal device selects any physical resource, including:
  • the terminal device acquires a probability vector expression or a probability array expression that the terminal device selects any physical resource.
  • the terminal device acquires the indication information that the terminal device selects any physical resource, including:
  • the terminal device acquires a conditional probability vector expression or a conditional probability array expression that the terminal device selects any physical resource.
  • the terminal device acquires the indication information that the terminal device selects any physical resource, including:
  • the terminal device acquires a correspondence between a device identifier of the terminal device and an arbitrary physical resource identifier when the terminal device selects any physical resource.
  • the terminal device determines, according to the amount of data to be transmitted by the terminal device and the attribute information of the physical resource, the number Q of physical resources that the terminal device needs to use, include:
  • the terminal device determines, according to the attribute information of the physical resource, a data bearer quantity specified by the physical resource, where the attribute information of the physical resource includes time-frequency information and encoding information of the physical resource;
  • the terminal device divides the amount of data to be transmitted by the terminal device by the data carrying capacity specified by each physical resource to obtain the number Q of resources to be used.
  • the terminal device uses the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device, including:
  • the terminal device performs the following processing cyclically until the X physical resources are selected to send the data to be transmitted by the terminal device or X ⁇ 0:
  • the data to be transmitted by the terminal device is sent by using the selected X physical resources
  • the X when X is selected for the first time among the N physical resources, the X is equal to Q.
  • the terminal device adopts an initial attempt to select Q physical resources, and if the selection fails, reduces the strategy of selecting the number of physical resources, thereby gradually reducing the number of physical resources selected, thereby being able to transmit data according to the needs of the terminal device.
  • the number of physical resources is flexibly selected, and the number of selected physical resources is highly accurate, which improves the utilization of physical resources.
  • the terminal device uses the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device, including:
  • the terminal device acquires a preset selection probability vector or a probability array P X corresponding to the preset selection of the X physical resources by the terminal device, and attempts to select X among the N physical resources by using the selection probability vector or the probability array P X Physical resources;
  • the loop performs the following processing until the X physical resources are selected to send the data to be transmitted by the terminal device:
  • the terminal device acquires a preset conditional probability vector or a conditional probability array P Y ⁇ X of the Y physical resources under the condition that the terminal device selects X physical resources, and selects X physical entities by using the Under the condition of resources, continue to select the conditional probability vector or conditional probability array P Y ⁇ X of Y physical resources to continue to try to select Y physical resources among the remaining NX physical resources, Y is a preset positive integer, and satisfies X +Y ⁇ Q;
  • the X when attempting to select X physical resources for the first time among the N physical resources, the X is a preset positive integer less than or equal to Q.
  • the terminal device adopts an initial attempt to select fewer physical resources. If the selection succeeds, the strategy of selecting more physical resources is gradually selected on the basis of success until the required Q physical resources are successfully selected, thereby enabling According to the amount of data that the terminal device needs to send, multiple physical resources are flexibly selected, and the signaling overhead in the process of preempting the physical resource by using the method is small.
  • the terminal device uses the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device, including:
  • the terminal device searches for the corresponding Qs from the corresponding relationship by using the device identifier corresponding to the terminal device, based on the correspondence between the device identifier and the physical resource identifier corresponding to the Q physical resources that need to be occupied.
  • Physical resource identifier
  • the terminal device selects the Q physical resources corresponding to the Q physical resource identifiers that are found by the N physical resources to send the data to be transmitted by the terminal device.
  • the terminal device selects the required number of physical resources based on the predetermined amount of the terminal device identifier, the number of required physical resources, and the physical resource identifier according to the size of the data to be transmitted.
  • the method of preempting the physical resource method has a small signaling overhead and is simple to implement.
  • a method for sharing physical resources including:
  • the base station determines, according to the context information of the at least one terminal device, packet information of a packet in which each terminal device is located, and indication information that the terminal device selects any one of the physical resources, and feeds back the terminal device to each terminal device.
  • the grouping information of the group in which the terminal device is located and the indication information of the physical resource includes the number N of physical resources that can be shared in the group where the terminal device is located, and the attribute information of the physical resource.
  • the indication information is used to indicate a mapping relationship between the terminal device and any one of the physical resources, and the attribute information of the physical resource includes time-frequency information and encoding information of the physical resource.
  • the base station can group all the terminal devices according to the context information of all the terminal devices, and feed back to each terminal device the indication information that the terminal device selects any physical resource, so that the terminal device can select any physical resource based on the terminal device.
  • the indication information when the data needs to be sent, selects at least one physical resource from the physical resources in the packet to transmit data according to the size of the data to be sent, and reduces physical resource selection when multiple terminal devices share physical resources. The probability of a conflict.
  • the base station feeds back, to each terminal device, indication information that the terminal device selects any physical resource, including:
  • the base station feeds back to the terminal device a probability vector expression or a probability array expression that the terminal device selects any physical resource.
  • the base station feeds back, to each terminal device, indication information that the terminal device selects any physical resource, including:
  • the base station feeds back, to the terminal device, a conditional probability vector expression or a conditional probability array expression that the terminal device selects any physical resource.
  • the base station feeds back, to each terminal device, indication information that the terminal device selects any physical resource, including:
  • the base station feeds back, to the terminal device, a correspondence between a device identifier of the terminal device and an arbitrary physical resource identifier when the terminal device selects any physical resource.
  • a third aspect provides a terminal device that shares a physical resource, including:
  • a transceiver unit configured to acquire group information of the terminal device, and the terminal device selects an indication information of any one of the physical resources, where the group information includes the number N of physical resources that can be shared in the packet and the attribute information of the physical resource.
  • the indication information is used to indicate a mapping relationship between the terminal device and any one of the physical resources, and the attribute information of the physical resource includes time-frequency information and encoding information of the physical resource;
  • a processing unit configured to determine, according to the amount of data to be transmitted by the terminal device, and the attribute information of the physical resource, the number of physical resources that the terminal device needs to use, Q ⁇ 1 ⁇ Q ⁇ N;
  • the processing unit is further configured to use the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device, where N, X, and Q are positive integers, 1 ⁇ X ⁇ Q.
  • the transceiver unit when the transceiver unit acquires the group information of the terminal device, and the terminal device selects the indication information of any one of the physical resources, the transceiver unit is specifically configured to:
  • the transceiver unit selects any of the terminal devices When the physical resource indication information is used, it is specifically used to:
  • the transceiver unit is specifically configured to: when acquiring, by the terminal device, the indication information of any physical resource:
  • conditional probability vector expression or a conditional probability array expression that the terminal device selects any one of the physical resources.
  • the transceiver unit is specifically configured to: when acquiring, by the terminal device, the indication information of any physical resource:
  • the processing unit determines, according to the amount of data to be transmitted by the terminal device and the attribute information of the physical resource, the number Q of physical resources that the terminal device needs to use.
  • the processing unit dynamically selects X physical resources from the N physical resources and sends the data to be transmitted by the terminal device by using the indication information
  • the processing unit is specifically used to :
  • the loop performs the following processing until the X physical resources are selected to send the data to be transmitted by the terminal device or X ⁇ 0:
  • the data to be transmitted by the terminal device is sent by using the selected X physical resources
  • the X when X is selected for the first time among the N physical resources, the X is equal to Q.
  • the processing unit dynamically selects X physical resources from the N physical resources and sends the data to be transmitted by the terminal device by using the indication information
  • the processing unit is specifically used to :
  • the loop performs the following processing until the X physical resources are selected to send the data to be transmitted by the terminal device:
  • the X when attempting to select X physical resources for the first time among the N physical resources, the X is a preset positive integer less than or equal to Q.
  • the processing unit dynamically selects X physical resources from the N physical resources and sends the data to be transmitted by the terminal device by using the indication information
  • the processing unit is specifically used to :
  • the Q physical resources corresponding to the Q physical resource identifiers that are searched are selected from the N physical resources to send the data to be transmitted by the terminal device.
  • a fourth aspect provides a network device that shares physical resources, including:
  • a transceiver unit configured to receive a resource request sent by the at least one terminal device, where the resource request includes context information of the terminal device;
  • a processing unit configured to determine, according to context information of the at least one terminal device, packet information of a packet where each terminal device is located, and indication information that the terminal device selects any one of the physical resources;
  • the transceiver unit is further configured to feed back, to each terminal device, group information of a packet where the terminal device is located, and indication information of the terminal device to select any physical resource, where the group information includes a group where the terminal device is located.
  • the transceiver unit when the transceiver unit feeds back, to each terminal device, the terminal device selects an indication of any physical resource, the transceiver unit is specifically configured to:
  • the transceiver unit when the transceiver unit feeds back, to each terminal device, the terminal device selects an indication of any physical resource, the transceiver unit is specifically configured to:
  • the transceiver unit when the transceiver unit feeds back, to each terminal device, the terminal device selects an indication of any physical resource, the transceiver unit is specifically configured to:
  • a terminal device includes a processor, a memory, and a transceiver, wherein the memory stores a computer readable program, and the processor controls the location by running a program in the memory
  • the transceiver implements a method for sharing physical resources related to the first aspect.
  • a base station in a sixth aspect, includes a processor, a memory, and a transceiver, wherein the memory stores a computer readable program, and the processor controls the sending and receiving by running a program in the memory A method of implementing a shared physical resource related to the second aspect.
  • a communication system includes a first device and a second device, where the first device is a terminal device related to the third aspect or a terminal device related to the fifth aspect, the second device The device is the network device involved in the fourth aspect or the base station involved in the sixth aspect.
  • the scheme for sharing physical resources in the embodiment of the present invention requires the number of transmissions of the terminal device. According to the amount of data that the terminal device needs to transmit, the number Q of physical resources required by the terminal device is determined, so that at least one physical resource is selected from the N physical resources to send the data to be transmitted by the terminal device, and the solution is solved.
  • the problem that the amount of data sent by the terminal device does not match the bearer granularity of the physical resource reduces the probability of the terminal device colliding when sharing the physical resource, and improves the utilization of the physical resource.
  • FIG. 1 is a schematic diagram of multiple terminal devices sharing physical resources by multi-channel slotted ALOHA technology
  • FIG. 2 is a schematic diagram of an application scenario in an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for sharing physical resources according to an embodiment of the present invention.
  • 4A is a flowchart of dynamically selecting X physical resources from N physical resources according to an embodiment of the present invention
  • FIG. 4B is another flowchart of dynamically selecting X physical resources from N physical resources according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for sharing physical resources according to Embodiment 1 of the present invention.
  • FIG. 6 is a flowchart of determining a probability vector or a probability array when any physical resource is selected according to the first embodiment of the present invention
  • FIG. 7 is a flowchart of a method for sharing physical resources according to Embodiment 2 of the present invention.
  • FIG. 8 is a flowchart of determining a conditional probability vector or a conditional probability array when any physical resource is selected according to Embodiment 2 of the present invention.
  • FIG. 9 is a flowchart of a method for sharing physical resources according to Embodiment 3 of the present invention.
  • FIG. 10 is a flowchart of determining a mapping relationship between a physical resource identifier and a terminal device identifier when selecting any physical resource according to Embodiment 3 of the present invention
  • FIG. 11 is a schematic structural diagram of a terminal device sharing a physical resource according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another terminal device sharing physical resources according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a network device sharing a physical resource according to an embodiment of the present disclosure
  • FIG. 14 is a schematic structural diagram of another network device sharing physical resources according to an embodiment of the present invention.
  • the terminal device D1, the terminal device D2, the terminal device D3, and the terminal device D4 share the physical resource f1 and the physical resource f2.
  • the probability that the terminal device D1 selects the physical resource f1 is 0.2
  • the probability of selecting the physical resource f2 is 0.8
  • the probability vector or probability array is [0.2, 0.8].
  • the probability that the terminal device D2 selects the physical resource f1 is 0.3
  • the probability of selecting the physical resource f2 is 0.7
  • the probability vector or probability array is [0.3, 0.7].
  • the probability that the terminal device D3 selects the physical resource f1 is 0.5, the probability of selecting the physical resource f2 is 0.5, and the probability vector or probability array is [0.5, 0.5].
  • the probability that the terminal device D4 selects the physical resource f1 is 0.5, the probability of selecting the physical resource f2 is 0.5, and the probability vector or probability array is [0.5, 0.5].
  • the same terminal device may select the physical resource f1 or the physical resource f2 based on its own selection probability vector or probability array of two physical resources. Thus, rationally optimizing the selection probability vector or probability array can effectively reduce the probability of collision.
  • each terminal device can only select one physical resource and send data at the beginning of one time segment. For example, when the amount of data of the terminal device is large, multiple physical resources cannot be selected in one time segment, that is, the problem that the amount of data that the terminal device needs to send and the granularity of the physical resource do not match.
  • the network architecture of the application provided by the embodiment of the present invention includes a base station and at least one terminal device.
  • FIG. 2 shows a connection diagram between the base station 20 and three terminal devices, such as the terminal device 21, the terminal device 22, and the terminal device 23.
  • Base station 20 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include various components associated with signal transmission and reception, such as processors, modulators, multiplexers, demodulation , demultiplexer or antenna.
  • the base station 20 can communicate with the accessed terminal devices, such as the access terminal device 21, the access terminal device 22, and the access terminal device 23. However, it will be appreciated that base station 20 can communicate with substantially any number of access terminal devices similar to access terminal devices 21, 22, and 23.
  • Access terminal devices 21, 22, and 23 can be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device.
  • base station 20, access terminal device 21 and/or access terminal device 22 and/or access terminal device 23 may be transmitting wireless communication devices and/or receiving wireless communication devices.
  • the transmitting wireless communication device can encode the data for transmission.
  • the transmitting wireless communication device can have, for example, generate, obtain, store in memory, etc., a certain number of information bits to be transmitted over the channel to the receiving wireless communication device.
  • Such information bits may be included in a transport block or a plurality of transport blocks of data, which may be segmented to produce a plurality of code blocks.
  • the transmitting wireless communication device can encode each code block using a polar code encoder to improve the reliability of data transmission, thereby ensuring communication quality.
  • the terminal device 21, the terminal device 22, and the terminal device 23 After the terminal device 21, the terminal device 22, and the terminal device 23 initially access the base station 20, respectively report the context information of the terminal device to the base station, and the base station 20 targets the terminal device 21 and the terminal device 22 for the context information corresponding to each terminal device that is accessed.
  • the terminal device 23 performs grouping, and determines the number of the physical resources, the time-frequency information, and the encoding information that can be shared in the packet.
  • the terminal device 21 needs to transmit the uplink data, it needs to acquire the group information of the terminal device 21, specifically Obtaining the number N of physical resources that can be used in the packet in which the terminal device 21 is located, time-frequency information, and encoding information, and determining the number of physical resources to be used based on the amount of data that the terminal device 21 needs to transmit, and thus Other terminal devices preempt the physical resources, so that the terminal device does not need the base station to schedule physical resources when transmitting data.
  • the physical resources in the embodiment of the present invention include time-frequency resources composed of time and frequency.
  • the time-frequency information of the physical resource can be specified.
  • one physical resource is one physical resource block group (RBG), and one RBG includes four physical resource blocks (Physical Resource Blocks, PRBs).
  • PRBs Physical Resource Blocks
  • One PRB includes 12 subcarriers.
  • the scheme for sharing a physical resource in the embodiment of the present invention is applied in a scenario in which M terminal devices share N physical resources, and each terminal device flexibly selects multiple physical resources to send according to the amount of data that each needs to send.
  • the data is dedicated to solving the problem that the amount of data sent by the terminal device does not match the granularity of the physical resource when the physical resource is shared by the grant-free mode, and the probability of collision of the terminal device when the physical resource is shared is reduced, and the utilization of the physical resource is improved.
  • an embodiment of the present invention provides a method for sharing a physical resource, where the method is applied to any one of at least two terminal devices that share at least one physical resource, and the specific process includes the following steps:
  • Step 30 The terminal device acquires group information of the terminal device, and the terminal device selects indication information of any physical resource, where the group information includes the number N of physical resources that can be shared in the packet and the attribute information of the physical resource.
  • the indication information is used to describe a mapping relationship between the terminal device and any one of the physical resources, and the attribute information of the physical resource includes time-frequency information and encoding information of the physical resource.
  • Step 31 The terminal device is based on the amount of data to be transmitted by the terminal device and attribute information of the physical resource. Determining the number Q of physical resources that the terminal device needs to use, 1 ⁇ Q ⁇ N.
  • Step 32 The terminal device dynamically selects X physical resources from the N physical resources to send data to be transmitted by the terminal device by using the indication information, where N, X, and Q are positive integers, and 1 ⁇ X ⁇ Q .
  • the packet information of the terminal device includes the number N of physical resources that can be shared in the corresponding packet and the attribute information of the physical resource, and other related parameter information that enables the terminal device to access the corresponding physical resource.
  • the terminal device acquires the grouping information of the terminal device, and the terminal device selects the indication information of any one of the physical resources, and the specific process is:
  • the terminal device sends a resource request to the base station, where the resource request includes context information of the terminal device;
  • the terminal device when the terminal device obtains the indication information of the any physical resource, the terminal device may include the following three methods:
  • the first mode is: the terminal device acquires a probability vector expression or a probability array expression that the terminal device selects any physical resource.
  • the second mode is: the terminal device acquires a conditional probability vector expression or a conditional probability array expression that the terminal device selects any physical resource.
  • the third mode is: the terminal device acquires a correspondence between the device identifier of the terminal device and any one of the physical resource identifiers when the terminal device selects any physical resource.
  • the terminal device when determining, by the terminal device, the number Q of the physical resources that the terminal device needs to use, determining, according to the attribute information of the physical resource, a data bearer quantity specified by the physical resource, where the attribute information of the physical resource includes Time-frequency information and encoding information of the physical resource; dividing the amount of data to be transmitted by the terminal device by the data carrying capacity specified by each physical resource to obtain the number Q of resources to be used.
  • the foregoing indication information may be described in three manners. Therefore, when the X physical resources are dynamically selected from the N physical resources in step 32 to transmit the data to be transmitted by the terminal device, the corresponding includes the following. Three implementation methods.
  • the terminal device uses the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device.
  • the indication information For the first implementation method, refer to FIG. 4A:
  • the terminal device acquires a preset selection probability vector or probability array P X corresponding to the preset selection of the X physical resources by the terminal device.
  • S42 The terminal device attempts to select X physical resources among the N physical resources by using the selection probability vector or the probability array P X .
  • S43 The terminal device determines whether the selection is successful. When the selection is successful, S44 is performed; when the selection fails, S45 is performed.
  • the terminal device sends the data to be transmitted by the terminal device by using the selected X physical resources.
  • the success of the selection means that the terminal device can successfully preempt the X physical resources by using the probability vector and the probability array when selecting X physical resources.
  • S45 If the selection fails, let X decrement Y to obtain a new X, and return to S41, where Y is a preset positive integer.
  • the selection failure here refers to the probability vector and probability array of the terminal device adopting the selection of X physical resources cannot be successful. Preempt X physical resources.
  • the number of selected physical resources X can only be any positive integer less than or equal to Q, because the sum of the components in the probability vector is 1. Therefore, when the physical resource is selected by the probability vector, finally, at least one physical resource can be successfully selected; since the sum of the components in the probability array is less than or equal to 1, when the physical resource is selected by using the probability array, the unsuccessful selection may eventually occur. The case of any physical resource.
  • the terminal device adopts an initial attempt to select Q physical resources, and if the selection fails, reduces the strategy of selecting the number of physical resources to gradually reduce the number of physical resources to be selected.
  • the terminal device uses the indication information to dynamically select X physical resources from the N physical resources to send the data to be transmitted by the terminal device.
  • the indication information For the second implementation method, refer to FIG. 4B:
  • the terminal device acquires a preset condition probability vector or condition probability array P X corresponding to the preset terminal device selecting X physical resources.
  • the X when attempting to select X physical resources for the first time among the N physical resources, the X is a preset positive integer less than or equal to Q.
  • the terminal device attempts to select X physical resources among the N physical resources by using the conditional probability vector or the conditional probability array P X .
  • S3 The terminal device determines whether the X physical resources are successfully selected. When the selection succeeds, S5 is performed; when the selection fails, S4 is executed.
  • the terminal device determines that no physical resource is selected, and the process ends.
  • the selection failure here means that the terminal device cannot successfully preempt the X physical resources by using the conditional probability vector and the conditional probability array when selecting X physical resources; the selection success refers to the conditional probability when the terminal device adopts the X physical resources.
  • Vector and conditional probability arrays can successfully preempt X physical resources.
  • the terminal device continues to select the conditional probability vector or the conditional probability array P Y ⁇ X of the Y physical resources under the condition that the X physical resources are selected, and continues to try to select Y among the remaining NX physical resources.
  • Physical resource, Y is a preset positive integer, and satisfies X+Y ⁇ Q;
  • the above processing is performed cyclically until the terminal device selects to send X physical resources to transmit data to be transmitted by the terminal device:
  • the second implementation method is the same as the first implementation method. If the physical resource selection succeeds, the number of selected physical resources X can only be any positive integer less than or equal to Q, due to the conditional probability. The sum of the components in the vector is 1, so when the physical resource is selected by the conditional probability vector, finally at least one physical resource can be successfully selected; since the sum of the components in the conditional probability array is less than or equal to 1, the conditional probability array is used to select the physics. When resources are used, there may be cases where unsuccessful selection of any physical resource occurs.
  • the terminal device adopts an initial attempt to select fewer physical resources. If the selection succeeds, the policy of selecting more physical resources is gradually selected on the basis of success until the required Q physical resources are successfully selected.
  • the terminal device uses the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device, and the third implementation method is:
  • the Q physical resources corresponding to the Q physical resource identifiers that are searched are selected from the N physical resources to send the data to be transmitted by the terminal device.
  • the physical device is selected by using the terminal device identifier, the number of required physical resources, and the mapping relationship between the physical resource identifier, and thus the number of selected physical resources X can only be selected. For Q.
  • the first embodiment describes a method for sharing physical resources by using a probability vector or a probability array in the first implementation method.
  • the terminal device first attempts to select the number of physical resources required by the terminal device, and if the selection fails, the physical resource selection is reduced. The number of tactics is high. It is applicable to scenarios where the number of physical resources shared by the terminal device is large.
  • the specific steps are as shown in Figure 5:
  • Step 50 Any terminal device acquires group information of the terminal device, and the terminal device selects a probability vector expression or a probability array expression of any one of the physical resources.
  • the packet information includes the number N of physical resources that can be shared within the packet, and time-frequency information and coding information of the physical resource.
  • each terminal device has a probability vector for selecting one physical resource, and a probability vector for selecting L physical resources, and the value range of L is greater than or equal to 2 and less than or equal to N, so that the ith terminal device selects L devices.
  • the probability vector of the physical resource, L is greater than or equal to 1.
  • the probability array for each terminal device to select L physical resources can also be obtained in this way, and L is greater than or equal to 1.
  • p i,j represents the probability that the i th terminal device selects the jth physical resource; the value range of j is greater than or equal to 1 and less than or equal to N, and the value range of p i,j is greater than or equal to 0 and less than or equal to 1, The value ranges from 0 to less than or equal to 1.
  • the probability vector or probability array of the ith terminal device selecting L physical resources is among them The probability that the i th terminal device selects the jth , j 2 , . . . , j L physical resources; the value range of j 1, j 2 , . . . , j L is greater than or equal to 1 and less than or equal to N and satisfies j 1 ⁇ j 2 ⁇ ... ⁇ j L , The value ranges from 0 to less than or equal to 1, The value ranges from 0 to less than or equal to 1.
  • determining a probability vector or a probability array for each terminal device to select one physical resource, and selecting a probability vector or a probability array of the at least two physical resources may be, but not limited to, the following methods:
  • Step S61 The terminal device sends a resource request to the base station, where the resource request includes context information of the terminal device, where the context information includes but is not limited to a packet probabilities, a packet length probability distribution, a service type, and a quality of service. Service, QoS) requirements and other information.
  • context information includes but is not limited to a packet probabilities, a packet length probability distribution, a service type, and a quality of service. Service, QoS) requirements and other information.
  • Step S62 The base station determines, according to context information of all current access terminal devices, a packet message of each terminal device. Interest rate, each terminal device selects a probability vector expression or a probability array expression of any physical resource.
  • the base station when the base station determines the group information of each terminal device according to the context information of all the current access terminal devices, in an optional implementation manner, the base station generates a packet probability according to the terminal device, a packet length probability distribution, and a time frequency of the physical resource.
  • Information coding information of physical resources, based on minimizing the maximum collision probability of all physical resources, or minimizing the average collision probability on all physical resources as a criterion, determining an optimization problem and solving, obtaining each physical device to select K physical resources Probability vector expression or probability array expression.
  • the time-frequency information A of the physical resource may be specified in the protocol in advance, and the coded information B of the physical resource is determined according to the channel state information, thereby obtaining the data carrying capacity C specified by each physical resource. Since C is a function of A and B, C is used. (A, B) indicates the amount of data carried by each physical resource.
  • the terminal device i sends the packet probability f i and the packet length probability distribution g i (x), where x is the packet length, the probability distribution of the Q physical resources required at the current moment is
  • the first part of the formula indicates that the terminal device i selects the physical resource X when the Q resources are selected, and the second part indicates that the user i selects the Q physical resources and fails to select the physical resources X when the Q-1 and Q-2 physical resources are selected. Therefore, the probability of a preemption conflict in physical resource X is:
  • the first part of the formula indicates that no terminal device i selects the physical resource X, and the second part indicates that only one terminal device selects the physical resource X; when the criterion of minimizing the maximum collision probability of all physical resources is used, For the goal, obtain an optimized P i (K); when minimizing the average probability of collision on all physical resources, For the goal, obtain an optimized P i (K).
  • the base station determines the grouping information of each terminal device according to the context information of all the current access terminal devices, in another optional implementation manner, based on the packet sending probability of the terminal device in the packet defined in the protocol, The packet length probability distribution of the terminal device in the packet, the number of terminal devices in the packet, the time-frequency information and the coding information of the physical resource of the packet, and the correspondence relationship between the probability that the terminal device selects any physical resource.
  • the terminal devices can be grouped. Each group of terminal devices only preempts a part of the total physical resource resources. The specific grouping of the terminal devices can preempt the physical resources based on the terminal devices. The probability is determined, and the specific principle is not unique.
  • Step S63 The base station feeds back a resource response message to the terminal device, where the resource response message carries the group information and selects a probability vector expression or a probability array expression of any physical resource.
  • the base station feeds back, by the terminal device dedicated channel, information of the number N of physical resources that can be used in the packet and the multicast channel that can be used by the packet to the terminal device, and the base station feeds back the information to the terminal device in the packet through the multicast channel.
  • Time-frequency information and coding information of physical resources that can be used by a packet are examples of time-frequency information and coding information of physical resources that can be used by a packet.
  • the probability values corresponding to different feedback bit values defined in the protocol are specified.
  • Interval. Determining, by the base station, the feedback bit information corresponding to the probability according to the protocol, and determining, by the base station, the feedback bit information corresponding to the probability, where the base station uses the terminal device dedicated channel to feed back the feedback bit information to the terminal device.
  • the terminal device queries the protocol according to the received feedback bit information, and obtains a probability vector or a probability array expression for selecting any physical resource.
  • Step 51 In the case that the i-th terminal device has data to be transmitted, step 52 is performed; in the case that the i-th terminal device has no data to be transmitted, step 58 is performed.
  • Step 52 Determine L' physical resources according to the amount of data to be sent.
  • the value range of L' is greater than or equal to 1 and less than or equal to N.
  • Step 53 The i-th terminal device selects L′ physical resources by using a probability vector P i, L′ corresponding to the L′ physical resources in the probability vector or the probability array.
  • Step 54 Determine whether the L' physical resources are successfully selected. If the selection is successful, go to step 55. If the selection fails, go to step 56.
  • Step 55 The i-th terminal device transmits data by using the selected L' physical resources and ends.
  • Step 57 It is judged whether L' ⁇ 0 is satisfied, and if yes, step 58 is performed; otherwise, step 53 is performed to continue selecting the physical resource.
  • Step 58 The i-th terminal device does not send data and ends.
  • the second embodiment describes a method for sharing physical resources by using a conditional probability vector or a conditional probability array in the second implementation method.
  • the terminal device first attempts to select fewer physical resources, and if the selection succeeds, gradually selects more on the basis of success. For a large number of physical resources, the number of physical resources to be preempted is high. This method is applicable to scenarios where the number of physical resources shared by the terminal device is small.
  • the specific steps are as shown in Figure 7:
  • Step 70 Any terminal device acquires grouping information of the terminal device, and the terminal device selects a conditional probability vector or a conditional probability array of any one of the physical resources.
  • a probability vector or an probability array in which each terminal device has selected L physical resources is given.
  • the conditional probability vector or the conditional probability array of the G physical resources under the condition that the F physical resources are selected the i-th terminal device is taken as an example, and the value range of i is greater than or equal to 1 and less than or equal to M; the ith The probability vector of the terminal device selecting L physical resources is
  • the conditional probability vector of the ith terminal device selecting the G physical resources under the condition that F physical resources are selected is
  • Represents the i-th terminal device selects the first k 1, k 2, ..., under k F physical resources, select the first j 1, j 2, ..., the conditional probability of j L physical resources; k 1, k 2 ,...,k F has a value range of greater than or equal to 1 and less than or equal to N. The value ranges from 0 to less than or equal to 1, The value range is greater than or equal to 0 and less than or equal to 1.
  • each terminal device can select the conditional probability array of G physical resources under the condition that F physical resources are selected.
  • determining, by each terminal device, a conditional probability vector or a conditional probability array of any physical resource may be used but is not limited to the following methods:
  • Step S81 The terminal device sends a resource request to the base station, where the resource request includes context information of the terminal device, where the context information includes but is not limited to a packet probability, a packet length probability distribution, a service type, and a quality of service. Service, QoS) requirements and other information.
  • context information includes but is not limited to a packet probability, a packet length probability distribution, a service type, and a quality of service. Service, QoS) requirements and other information.
  • Step S82 The base station determines grouping information of each terminal device according to context information of all current access terminal devices, and each terminal device selects a conditional probability vector expression or a conditional probability array expression of any one of the physical resources.
  • the base station when the base station determines the group information of each terminal device according to the context information of all the current access terminal devices, in an optional implementation manner, the base station generates a packet probability according to the terminal device, a packet length probability distribution, and a time frequency of the physical resource.
  • Information coding information of physical resources, based on minimizing the maximum collision probability of all physical resources, or minimizing the average collision probability on all physical resources as a criterion, determining an optimization problem and solving, obtaining each physical device to select K physical resources Probability vector expression or probability array expression.
  • the packet is based on a packet probability of the terminal device in the packet defined in the protocol.
  • the terminal devices can be grouped. Each group of terminal devices only preempts a part of the total physical resource resources. The specific grouping of the terminal devices can preempt the physical resources based on the terminal devices. The probability is determined, and the specific principle is not unique.
  • Step S83 The base station feeds back a resource response message to the terminal device, where the resource response message carries the group information and a conditional probability vector expression or a conditional probability array expression for selecting any physical resource.
  • the base station feeds back, by the terminal device dedicated channel, information of the number N of physical resources that can be used in the packet and the multicast channel that can be used by the packet to the terminal device, and the base station feeds back the information to the terminal device in the packet through the multicast channel.
  • Time-frequency information and coding information of physical resources that can be used by a packet are examples of time-frequency information and coding information of physical resources that can be used by a packet.
  • the probability value interval corresponding to different feedback bit values is defined in the protocol. Determining, by the base station, a conditional probability of any one of the physical resources, and determining, according to the protocol, feedback bit information corresponding to the probability; the base station adopting the terminal device dedicated channel, and feeding back the feedback bit to the terminal device. The terminal device queries the protocol according to the received feedback bit information, and obtains a conditional probability vector or a conditional probability array expression for selecting any physical resource.
  • Step 71 In the case that the i-th terminal device has data to be transmitted, step 72 is performed; in the case that the i-th terminal device has no data to be transmitted, step 75 is performed.
  • Step 72 Determine L' physical resources according to the amount of data to be sent, and the value range of L' is greater than or equal to 1 and less than or equal to N.
  • Step 73 The i-th terminal device selects a probability value corresponding to L * physical resources by using a conditional probability vector or a conditional probability array.
  • Step 74 Determine whether the L * physical resources are successfully selected. If the selection fails, step 75 is performed; if the selection is successful, step 76 is performed.
  • Step 75 The i-th terminal device does not send data and ends.
  • Step 76 The i-th terminal device continues to select the probability value corresponding to the L** physical resources by using the conditional probability vector or the conditional probability array.
  • L ** physical resources L ** is a preset positive integer, and the range of values satisfying L * + L ** is greater than or equal to 1 and less than or equal to L'.
  • Step 77 Determine whether the L ** physical resources are successfully selected. If the selection is successful, go to step 78. If the selection fails, go to step 710.
  • Step 710 The i-th terminal device sends data by using the selected L * physical resources and ends.
  • the third embodiment describes a method for sharing physical resources by means of resource mapping in the foregoing third implementation method.
  • the M terminal devices use the grant-free mode to share any one of the N physical resources.
  • the specific steps are as shown in FIG. 9. Shown as follows:
  • Step 90 The base station determines the mapping relationship between the physical resource identifier and the terminal device identifier when the i-th terminal device selects L physical resources, and the value range of i is greater than or equal to 1 and less than or equal to M; the value range of L is greater than or equal to 1 is less than or equal to N.
  • the base station determines, when the i-th terminal device selects one physical resource, the mapping relationship between the physical resource identifier and the terminal device identifier, and when selecting the L physical resources, the physical resource identifier and The mapping relationship between the identifiers of the terminal devices, and the value range of L is greater than or equal to 1 and less than or equal to N, so that the mapping relationship between the physical resource identifier and the device identifier when the ith terminal device selects L physical resources is obtained, and the value of L is obtained.
  • the range is greater than or equal to 1 and less than or equal to N.
  • mapping between the physical resource identifier of each physical resource and the terminal device identifier is determined by each terminal device, but is not limited to the following method, as shown in FIG. 10:
  • Step S101 The terminal device sends a resource request to the base station, where the resource request includes context information of the terminal device, where the context information includes but is not limited to a packet probability, a packet length probability distribution, a service type, and a quality of service. Service, QoS) requirements and other information.
  • context information includes but is not limited to a packet probability, a packet length probability distribution, a service type, and a quality of service. Service, QoS) requirements and other information.
  • Step S102 The base station determines the grouping information of each terminal device according to the context information of all the current access terminal devices, and each terminal device selects a mapping relationship between the physical resource identifier of any physical resource and the terminal device identifier.
  • the protocol defines a terminal device identifier, a number of required physical resources, and a mapping relationship with the physical resource identifier.
  • Step S103 The base station feeds back a resource response message to the terminal device, where the resource response message carries the packet information, the device identifier of the terminal device, and the physical resource identifier and the terminal device identifier of the terminal device that selects any physical resource. Mapping relations.
  • Step 91 In the case that the ith terminal device has data to be transmitted, step 92 is performed; otherwise, step 95 is performed.
  • Step 92 Determine L' physical resources according to the amount of data to be sent.
  • Step 93 The i-th terminal device obtains the mapping relationship between the physical resource identifier and the device identifier when selecting the L′ physical resources, and determines the L′ physical resources corresponding to the L′ physical resource identifiers; the value range of the L′ It is greater than or equal to 1 and less than or equal to N.
  • the protocol defines a terminal device identifier, a number of required physical resources, and a mapping relationship with the physical resource identifier.
  • the terminal device queries the protocol according to the terminal device identifier, and obtains L′ physical resource identifiers corresponding to the device identifier when the L′ physical resources are selected, thereby selecting L′ physical resources.
  • Step 94 The i-th terminal device transmits data by using the selected L' physical resources and ends.
  • Step 95 The i-th terminal device does not send data and ends.
  • FIG. 11 is a schematic structural diagram of a terminal device sharing a physical resource according to an embodiment of the present invention.
  • the terminal device 1100 can be used to perform the execution process of the terminal device in the method shown in FIG. 3-10.
  • the terminal device 1100 includes: a transceiver unit 110 and a processing unit 111, where:
  • the transceiver unit 110 is configured to acquire packet information of the terminal device, and the terminal device selects indication information of any physical resource, where the packet information includes the number N of physical resources that can be shared in the packet and attributes of the physical resource. And the indication information is used to indicate a mapping relationship between the terminal device and any one of the physical resources, where the attribute information of the physical resource includes time-frequency information and encoding information of the physical resource;
  • the processing unit 111 is configured to determine, according to the amount of data to be transmitted by the terminal device, and the attribute information of the physical resource, the number Q of physical resources that the terminal device needs to use, 1 ⁇ Q ⁇ N;
  • the processing unit 111 is further configured to use the indication information to dynamically select X physical resources from the N physical resources to send data to be transmitted by the terminal device, where N, X, and Q are positive integers, 1 ⁇ X. ⁇ Q.
  • the transceiver unit 110 acquires the group information of the terminal device, and the terminal device selects the indication information of any one of the physical resources, the transceiver unit 110 is specifically configured to:
  • the transceiver unit 110 when the receiving and receiving unit 110 selects the indication information of the any physical resource, the transceiver unit 110 is specifically configured to:
  • the transceiver unit 110 when the receiving and receiving unit 110 selects the indication information of the any physical resource, the transceiver unit 110 is specifically configured to:
  • conditional probability vector expression or a conditional probability array expression that the terminal device selects any one of the physical resources.
  • the transceiver unit 110 when the receiving and receiving unit 110 selects the indication information of the any physical resource, the transceiver unit 110 is specifically configured to:
  • the processing unit 111 determines the number Q of physical resources that the terminal device needs to use, based on the amount of data to be transmitted by the terminal device and the attribute information of the physical resource, specifically, the processing unit 111 is specifically configured to:
  • the processing unit 111 dynamically selects X items from the N physical resources by using the indication information.
  • the resource sends the data to be transmitted by the terminal device it is specifically used to:
  • the loop performs the following processing until the X physical resources are selected to send the data to be transmitted by the terminal device or X ⁇ 0:
  • the data to be transmitted by the terminal device is sent by using the selected X physical resources
  • the X when X is selected for the first time among the N physical resources, the X is equal to Q.
  • the processing unit 111 dynamically selects X physical resources from the N physical resources and sends the data to be transmitted by the terminal device by using the indication information
  • the processing unit 111 is specifically configured to:
  • the loop performs the following processing until the X physical resources are selected to send the data to be transmitted by the terminal device:
  • the X when attempting to select X physical resources for the first time among the N physical resources, the X is a preset positive integer less than or equal to Q.
  • the processing unit 111 dynamically selects X physical resources from the N physical resources and sends the data to be transmitted by the terminal device by using the indication information
  • the processing unit 111 is specifically configured to:
  • the Q physical resources corresponding to the Q physical resource identifiers that are searched are selected from the N physical resources to send the data to be transmitted by the terminal device.
  • the terminal device 1100 according to the embodiment of the present invention may be a separate component, or may be integrated into other components.
  • the terminal device 1100 provided by the embodiment of the present invention may be a base station in an existing communication network, or may be A component integrated in a base station.
  • each of the above “units” may be through a specific application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or others that provide the above functions.
  • ASIC application-specific integrated circuit
  • processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or others that provide the above functions.
  • the device is implemented.
  • FIG. 12 is a schematic structural diagram of another terminal device according to an embodiment of the present invention.
  • the terminal device 1200 can be used to perform the execution process of the terminal device in the method shown in FIG. 3-10.
  • the end device 1200 can be a wireless terminal, which can be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • a radio access network eg, RAN, Radio Access Network
  • the computers can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • PCS personal communication service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a wireless terminal may also be called a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, and a Remote Terminal.
  • Remote Terminal Access Terminal
  • User Terminal User Agent, User Device, or User Equipment.
  • the terminal device 1200 includes a processor 1201, a memory 1202, and a transceiver 1203, wherein:
  • the processor 1201, the memory 1202, and the transceiver 1203 are connected to each other through a bus 1204.
  • the processor 1201 is configured to invoke a program stored in the memory 1202, and execute: obtaining, by the transceiver 1203, packet information of the terminal device, and the terminal device selecting indication information of any physical resource, where The packet information includes the number N of physical resources that can be shared in the packet and the attribute information of the physical resource, where the indication information is used to indicate a mapping relationship between the terminal device and any physical resource, and attributes of the physical resource.
  • the information includes time-frequency information and encoding information of the physical resource; determining, according to the amount of data to be transmitted by the terminal device and the attribute information of the physical resource, the number of physical resources that the terminal device needs to use, Q ⁇ 1 ⁇ Q ⁇ N; using the indication information, dynamically selecting X physical resources from the N physical resources to send the data to be transmitted by the terminal device, N, X, and Q are positive integers, 1 ⁇ X ⁇ Q.
  • the transceiver 1203 can be a wired transceiver, a wireless transceiver, or a combination thereof.
  • the wired transceiver can be, for example, an Ethernet interface.
  • the Ethernet interface can be an optical interface, an electrical interface, or a combination thereof.
  • the wireless transceiver can be, for example, a wireless local area network transceiver, a cellular network transceiver, or a combination thereof.
  • the processor 1201 may be a CPU, an NP or a combination of a CPU and an NP.
  • the processor 1201 may further include a hardware chip.
  • the hardware chip described above may be an application specific integrated circuit ASIC, a PLD, or a combination thereof.
  • the above PLD may be a CPLD, an FPGA, a GAL, or any combination thereof.
  • the memory 1202 can include volatile memory, such as RAM; the memory 1202 can also include non-volatile memory, such as ROM, flash memory, HDD or SSD; the memory 1202 can also include a combination of the types of memory described above.
  • the memory 1202 can be used to store messages received by the transceiver 1203, as well as programs executed by the processor 1201.
  • bus 1204 can include any number of interconnected buses and bridges, specifically connected by one or more processors represented by processor 1201 and various circuits of memory represented by memory 1202.
  • the bus 1204 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus 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 12, but it does not mean that there is only one bus or one type of bus.
  • Bus 1204 can also couple various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
  • FIG. 13 is a schematic structural diagram of a network device sharing a physical resource according to an embodiment of the present invention.
  • the network The device 1300 can be used to perform the execution process of the base station in the foregoing method embodiment.
  • the network device 1300 includes: a transceiver unit 130 and a processing unit 131, where:
  • the transceiver unit 130 is configured to receive a resource request sent by the at least one terminal device, where the resource request includes context information of the terminal device;
  • the processing unit 131 is configured to determine, according to context information of the at least one terminal device, packet information of a packet where each terminal device is located, and indication information that the terminal device selects any one of the physical resources;
  • the transceiver unit 130 is further configured to feed back, to each terminal device, group information of a packet where the terminal device is located, and indication information of the terminal device to select any physical resource, where the group information includes a location where the terminal device is located.
  • the number of physical resources that can be shared in the packet and the attribute information of the physical resource, where the indication information is used to indicate a mapping relationship between the terminal device and any one of the physical resources, and the attribute information of the physical resource includes the Time-frequency information and coding information of physical resources.
  • the transceiver unit 130 is specifically configured to:
  • the transceiver unit 130 is specifically configured to:
  • the transceiver unit 130 is specifically configured to:
  • the network device 1300 involved in the foregoing embodiments may be a separate component, or may be integrated into other components.
  • the terminal device provided by the embodiment of the present invention may be a base station in an existing communication network, or may be integrated. The components within the base station.
  • each of the above “units” may be through a specific application-specific integrated circuit (ASIC), a processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or others that provide the above functions.
  • ASIC application-specific integrated circuit
  • processor and memory that executes one or more software or firmware programs, integrated logic circuits, and/or others that provide the above functions.
  • the device is implemented.
  • the network device 1400 can be used to perform the execution process of the base station in the foregoing method embodiment.
  • the network device 1400 may include a base station, or a radio resource management device for controlling the base station, or include a base station and a radio resource management device for controlling the base station; wherein the base station may be a macro station or a small station, such as a small cell (small cell)
  • the base station may also be a home base station, such as a Home NodeB (HNB), a Home eNodeB (HeNB), etc., and the base station may also include a relay node (relay) )Wait.
  • HNB Home NodeB
  • HeNB Home eNodeB
  • the network device may be an evolved NodeB (eNodeB).
  • eNodeB evolved NodeB
  • the network device may include: a Node B (NodeB) and/or a radio network controller (Radio). Network Controller, RNC).
  • Radio Radio Network Controller
  • the network device 1400 includes: a processor 1401, a memory 1402, and a transceiver 1403, wherein:
  • the processor 1401, the memory 1402, and the transceiver 1403 are connected to each other through a bus 1404.
  • the transceiver 1403 can be a wired transceiver, a wireless transceiver, or a combination thereof.
  • the wired transceiver can be, for example, an Ethernet interface.
  • the Ethernet interface can be an optical interface, an electrical interface, or a combination thereof.
  • the wireless transceiver can be, for example, a wireless local area network transceiver, a cellular network transceiver, or a combination thereof.
  • the processor 1401 may be a CPU, an NP or a combination of a CPU and an NP.
  • the processor 1401 may further include a hardware chip.
  • the hardware chip described above may be an application specific integrated circuit ASIC, a PLD, or a combination thereof.
  • the above PLD may be a CPLD, an FPGA, a GAL, or any combination thereof.
  • the memory 1402 may include volatile memory, such as RAM; the memory 1402 may also include non-volatile memory, such as ROM, flash memory, HDD or SSD; the memory 1402 may also include a combination of the above-described types of memory.
  • the memory 1402 can be used to store messages received by the transceiver 1403, as well as programs executed by the processor 1401.
  • the processor 1401 is configured to invoke a program stored in the memory 1402, and execute: receiving, by the transceiver 1403, a resource request sent by at least one terminal device, where the resource request includes context information of the terminal device; Determining, according to the context information of the at least one terminal device, packet information of a packet in which each terminal device is located, and indication information of the terminal device selecting any one of the physical resources; and feeding back, by the transceiver 1403, the terminal information to each terminal device The packet information of the packet in which the terminal device is located and the indication information of the physical resource selected by the terminal device, where the packet information includes the number N of physical resources that can be shared in the packet where the terminal device is located, and attribute information of the physical resource.
  • the indication information is used to indicate a mapping relationship between the terminal device and any one of the physical resources, and the attribute information of the physical resource includes time-frequency information and encoding information of the physical resource.
  • bus 1404 can include any number of interconnected buses and bridges, specifically connected by one or more processors represented by processor 1401 and various circuits of memory represented by memory 1402.
  • the bus 1404 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus.
  • PCI peripheral component interconnect
  • EISA extended industry standard architecture
  • the bus 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 14, but it does not mean that there is only one bus or one type of bus.
  • the bus 1404 can also couple various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
  • any one of the M terminal devices that share the N physical resources acquires the grouping information of the terminal device, and the terminal device selects the indication information of any one of the physical resources.
  • the packet information includes the number N of the physical resources that can be shared in the packet and the attribute information of the physical resource, where the indication information is used to indicate a mapping relationship between the terminal device and any one of the physical resources, where the physical resource is
  • the attribute information includes time-frequency information and encoding information of the physical resource; determining, according to the amount of data to be transmitted by the terminal device and attribute information of the physical resource, the number of physical resources that the terminal device needs to use, Q, 1 ⁇ Q ⁇ N; using the indication information, dynamically selecting X physical resources from the N physical resources to send the data to be transmitted by the terminal device, N, X, and Q are positive integers, 1 ⁇ X ⁇ Q, When the terminal device needs to send data, it can determine the number Q of physical resources required by the terminal device according to the amount of data that the terminal device needs to transmit
  • embodiments of the present invention can be provided as a method, system, or computer program product.
  • the present invention can be implemented in an entirely hardware embodiment, an entirely software embodiment, or in combination with software and hardware.
  • 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 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

一种共享物理资源的方法和装置，以解决现有的非授权模式共享物理资源时，终端设备需要发送的数据量与物理资源的承载粒度不匹配的问题。该方法为，共享N个物理资源的M个终端设备中的任一终端设备，获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息；基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q；利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，这样能够解决终端设备发送的数据量与物理资源的承载粒度不匹配的问题，降低共享物理资源时终端设备发生冲突的概率，并提高物理资源的利用率。

Description

一种共享物理资源的方法和装置
本申请要求在2016年4月27日提交中国专利局、申请号为201610270158.X、发明名称为“一种共享物理资源的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及一种共享物理资源的方法和装置。
背景技术
随着无线通信相关领域的发展，无线通信是推动教育、医疗、企业、政府、车联网、物联网等领域发展的重要技术。无线通信技术的性能虽然不断提高，但是依然无法满足部分领域的需求。其中，时延和资源利用率是衡量无线通信技术性能的重要指标。
为了降低时延，可以采用非授权(grant-free)模式分配物理资源。授权(grant)模式下，终端设备有数据需要发送时，首先申请物理资源，然后通过调度分配物理资源，最后使用分配的物理资源发送数据。Grant-free模式下，为终端设备预分配物理资源。终端设备有数据需要发送时，直接使用预分配的物理资源发送数据，不再需要调度；终端设备没有数据需要发送时，预分配的物理资源处于闲置状态。所以，grant-free模式虽然降低了时延，但是也降低了资源利用率。
为了提高资源利用率，多个终端设备可以在grant-free模式下共享物理资源。为多个终端设备预分配多个物理资源。终端设备有数据需要发送时，首先终端设备按照一定的方法选择物理资源，然后使用选择的物理资源发送数据。该模式面临的问题包括：一方面每个终端设备需要发送的数据量可能动态变化导致选择物理资源的个数动态变化，另一方面多个终端设备同时选择同1个物理资源时将发生冲突。
ALOHA技术是共享物理资源的有效技术。
现有的ALOHA技术中，每个终端设备只能在1个时间分段的开始选择该物理资源并进行发送。需要终端设备发送的数据量与物理资源粒度匹配，即每次发送的数据量必须小于或者等于该物理资源的1个时间分段承载的数据量。但是，随着物理资源粒度的逐渐细化，每个物理资源在1个时间分段内所能承载的数据量越来越小，同时终端设备每次需要发送的数据量可能动态变化，当终端设备发送的数据量与物理资源粒度不匹配时，即终端设备需要发送的数据量大于1个物理资源的1个时间分段承载的数据量，无法直接使用现有的ALOHA技术。
发明内容
本发明实施例提供一种共享物理资源的方法和装置，以解决现有的非授权模式共享物理资源时，终端设备需要发送的数据量与物理资源的承载粒度不匹配的问题。
本发明实施例提供的具体技术方案如下：
第一方面，提供一种共享物理资源的方法，应用在共享至少一个物理资源的至少两个终端设备中的任一终端设备，包括：
所述终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
所述终端设备基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N；
所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q。
这样，终端设备需要发送数据时能够根据终端设备需要传输的数据量，确定所述终端设备所需的物理资源个数Q，从而从N个物理资源中选择至少一个物理资源发送所述终端设备待传输的数据，解决了终端设备发送的数据量与物理资源的承载粒度不匹配的问题，降低共享物理资源时终端设备发生冲突的概率，并提高物理资源的利用率。
结合第一方面，一种可能的设计方式中，所述终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，包括：
所述终端设备向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息；
所述终端设备接收所述基站基于所述终端设备的上下文信息反馈的所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息。
结合第一方面，一种可能的设计方式中，所述终端设备获取所述终端设备选择任意个物理资源的指示信息，包括：
所述终端设备获取所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
结合第一方面，一种可能的设计方式中，所述终端设备获取所述终端设备选择任意个物理资源的指示信息，包括：
所述终端设备获取所述终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
结合第一方面，一种可能的设计方式中，所述终端设备获取所述终端设备选择任意个物理资源的指示信息，包括：
所述终端设备获取所述终端设备选择任意个物理资源时，所述终端设备的设备标识符与任意个物理资源标识之间的对应关系。
结合第一方面，一种可能的设计方式中，所述终端设备基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，包括：
所述终端设备基于所述物理资源的属性信息确定所述物理资源规定的数据承载量，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
所述终端设备将所述终端设备待传输的数据量除以每个物理资源规定的数据承载量得到需要使用的资源个数Q。
结合第一方面，一种可能的设计方式中，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，包括：
所述终端设备循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据或X≤0为止：
获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX， 利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
若选择成功，采用选择到的X个物理资源发送所述终端设备待传输的数据；
若选择失败，令X递减Y得到新的X，Y为预设的正整数；
其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X等于Q。
这种实现方法中，终端设备采用最初尝试选择Q个物理资源，若选择失败则减少选择物理资源个数的策略，来逐步降低物理资源的选择个数，从而能够根据终端设备需要发送的数据量的多少，灵活地选择多个物理资源，最终选择出来的物理资源的个数准确度高，提高物理资源的利用率。
结合第一方面，一种可能的设计方式中，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，包括：
所述终端设备获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
若选择失败，则确定选择不到任意一个物理资源；
若选择成功，循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据：
所述终端设备获取预设的所述终端设备在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X,采用所述的在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X继续尝试在剩余的N-X个物理资源中选择Y个物理资源，Y为预设的正整数，且满足X+Y≤Q；
若选择失败，则确定选择到X个物理资源；
若选择成功，判断X+Y是否等于Q，若是，则将X递加Y得到新的X，确定选择到X个物理资源；否则，将X递加Y得到新的X；
其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X为预设的小于等于Q的正整数。
这种实现方法中，终端设备采用最初尝试选择较少的物理资源，若选择成功则在成功的基础上逐步选择更多物理资源的策略，直到成功选择到所需要的Q个物理资源，从而能够根据终端设备需要发送的数据量的多少，灵活地选择多个物理资源，利用这种方法抢占物理资源方法过程中信令开销较小。
结合第一方面，一种可能的设计方式中，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，包括：
所述终端设备基于设备标识符与需要占用的Q个物理资源分别对应的物理资源标识之间的对应关系，使用所述终端设备对应的设备标识符从所述对应关系中查找到对应的Q个物理资源标识；
所述终端设备从N个物理资源中选择查找到的Q个物理资源标识分别对应的Q个物理资源发送所述终端设备待传输的数据。
这种方法中，终端设备根据需要发送的数据量大小，基于预先规定的终端设备标识符、所需物理资源的个数，与物理资源标识符的映射关系选择出需要的物理资源个数，利用这种方法抢占物理资源方法过程中信令开销较小，且实现简单。
第二方面，提供一种共享物理资源的方法，包括：
基站接收至少一个终端设备发送的资源请求，所述资源请求中包括所述终端设备的上下文信息；
所述基站基于所述至少一个终端设备的上下文信息，确定每个终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，并向每个终端设备反馈所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括所述终端设备所在的分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息。
这样，基站能够根据所有终端设备的上下文信息对所有终端设备进行分组，并向每个终端设备反馈该终端设备选择任意个物理资源的指示信息，使终端设备能够基于该终端设备选择任意个物理资源的指示信息，在需要发送数据时，根据需要发送的数据量的大小，从所在分组内的物理资源中选择出至少一个物理资源来发送数据，降低多个终端设备共享物理资源时，物理资源选择发生冲突的概率。
结合第二方面，一种可能的设计方式中，所述基站向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息，包括：
所述基站向所述终端设备反馈所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
结合第二方面，一种可能的设计方式中，所述基站向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息，包括：
所述基站向所述终端设备反馈所述终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
结合第二方面，一种可能的设计方式中，所述基站向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息，包括：
所述基站向所述终端设备反馈所述终端设备选择任意个物理资源时，所述终端设备的设备标识符与任意个物理资源标识之间的对应关系。
第三方面，提供一种共享物理资源的终端设备，包括：
收发单元，用于获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
处理单元，用于基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N；
所述处理单元，还用于利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q。
结合第三方面，一种可能的设计方式中，所述收发单元在获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息时，具体用于：
向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息；
接收所述基站基于所述终端设备的上下文信息反馈的所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息。
结合第三方面，一种可能的设计方式中，所述收发单元在获取所述终端设备选择任意 个物理资源的指示信息时，具体用于：
获取所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
结合第三方面，一种可能的设计方式中，所述收发单元在获取所述终端设备选择任意个物理资源的指示信息时，具体用于：
获取所述终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
结合第三方面，一种可能的设计方式中，所述收发单元在获取所述终端设备选择任意个物理资源的指示信息时，具体用于：
获取所述终端设备选择任意个物理资源时，所述终端设备的设备标识符与任意个物理资源标识之间的对应关系。
结合第三方面，一种可能的设计方式中，所述处理单元在基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q时，具体用于：
基于所述物理资源的属性信息确定所述物理资源规定的数据承载量，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
将所述终端设备待传输的数据量除以每个物理资源规定的数据承载量得到需要使用的资源个数Q。
结合第三方面，一种可能的设计方式中，所述处理单元在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据或X≤0为止：
获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
若选择成功，采用选择到的X个物理资源发送所述终端设备待传输的数据；
若选择失败，令X递减Y得到新的X，Y为预设的正整数；
其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X等于Q。
结合第三方面，一种可能的设计方式中，所述处理单元在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
若选择失败，则确定选择不到任意一个物理资源；
若选择成功，循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据：
获取预设的所述终端设备在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X,采用所述的在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X继续尝试在剩余的N-X个物理资源中选择Y个物理资源，Y为预设的正整数，且满足X+Y≤Q；
若选择失败，则确定选择到X个物理资源；
若选择成功，判断X+Y是否等于Q，若是，则将X递加Y得到新的X，确定选择到X个物理资源；否则，将X递加Y得到新的X；
其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X为预设的小于等于Q的正整数。
结合第三方面，一种可能的设计方式中，所述处理单元在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
基于设备标识符与需要占用的Q个物理资源分别对应的物理资源标识之间的对应关系，使用所述终端设备对应的设备标识符从所述对应关系中查找到对应的Q个物理资源标识；
从N个物理资源中选择查找到的Q个物理资源标识分别对应的Q个物理资源发送所述终端设备待传输的数据。
第四方面，提供一种共享物理资源的网络设备，包括：
收发单元，用于接收至少一个终端设备发送的资源请求，所述资源请求中包括所述终端设备的上下文信息；
处理单元，用于基于所述至少一个终端设备的上下文信息，确定每个终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息；
所述收发单元，还用于向每个终端设备反馈所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括所述终端设备所在的分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息。
结合第四方面，一种可能的设计方式中，所述收发单元在向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息时，具体用于：
向所述终端设备反馈所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
结合第四方面，一种可能的设计方式中，所述收发单元在向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息时，具体用于：
向所述终端设备反馈所述终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
结合第四方面，一种可能的设计方式中，所述收发单元在向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息时，具体用于：
向所述终端设备反馈所述终端设备选择任意个物理资源时，所述终端设备的设备标识符与任意个物理资源标识之间的对应关系。
第五方面，提供一种终端设备，该终端设备包括处理器、存储器、收发器，其中，所述存储器中存有计算机可读程序，所述处理器通过运行所述存储器中的程序，控制所述收发器，实现第一方面涉及的共享物理资源的方法。
第六方面，提供一种基站，该基站包括处理器、存储器、收发器，其中，所述存储器中存有计算机可读程序，所述处理器通过运行所述存储器中的程序，控制所述收发器，实现第二方面涉及的共享物理资源的方法。
第七方面，提供一种通信系统，该通信系统包括第一设备和第二设备，其中，所述第一设备为第三方面涉及的终端设备或第五方面涉及的终端设备，所述第二设备为第四方面涉及的网络设备或第六方面涉及的基站。
相较于现有技术，采用本发明实施例中的共享物理资源的方案，终端设备需要发送数 据时能够根据终端设备需要传输的数据量，确定所述终端设备所需的物理资源个数Q，从而从N个物理资源中选择至少一个物理资源发送所述终端设备待传输的数据，解决了终端设备发送的数据量与物理资源的承载粒度不匹配的问题，降低共享物理资源时终端设备发生冲突的概率，并提高物理资源的利用率。
附图说明
图1为多通道时隙ALOHA技术多个终端设备共享物理资源的示意图；
图2为本发明实施例中的应用场景示意图；
图3为本发明实施例中共享物理资源的方法流程图；
图4A为本发明实施例中一种从N个物理资源中动态选择X个物理资源的流程图；
图4B为本发明实施例中另一种从N个物理资源中动态选择X个物理资源的流程图；
图5为本发明实施例一中共享物理资源的方法流程图；
图6为本发明实施例一中确定选择任意个物理资源时的概率向量或概率数组的流程图；
图7为本发明实施例二中共享物理资源的方法流程图；
图8为本发明实施例二中确定选择任意个物理资源时的条件概率向量或条件概率数组的流程图；
图9为本发明实施例三中共享物理资源的方法流程图；
图10为本发明实施例三中确定选择任意个物理资源时物理资源标识与终端设备标识符的映射关系时的流程图；
图11为本发明实施例中一种共享物理资源的终端设备结构示意图；
图12为本发明实施例中另一种共享物理资源的终端设备结构示意图；
图13为本发明实施例中一种共享物理资源的网络设备结构示意图；
图14为本发明实施例中另一种共享物理资源的网络设备结构示意图。
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清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，并不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1所示，多通道时隙ALOHA技术中，终端设备D1、终端设备D2、终端设备D3和终端设备D4共享物理资源f1和物理资源f2。终端设备D1选择物理资源f1的概率为0.2，选择物理资源f2的概率为0.8，选择概率向量或概率数组为[0.2,0.8]。终端设备D2选择物理资源f1的概率为0.3，选择物理资源f2的概率为0.7，选择概率向量或概率数组为[0.3,0.7]。终端设备D3选择物理资源f1的概率为0.5，选择物理资源f2的概率为0.5，选择概率向量或概率数组为[0.5,0.5]。终端设备D4选择物理资源f1的概率为0.5，选择物理资源f2的概率为0.5，选择概率向量或概率数组为[0.5,0.5]。同1个终端设备基于自身对两个物理资源的选择概率向量或概率数组，可以选择物理资源f1或者物理资源f2。从而，合理地优化选择概率向量或概率数组，可以有效降低发生冲突的概率。
但是，每个终端设备只能在1个时间分段的开始选择一个物理资源并进行数据发送， 如当终端设备数据量较大时，无法在1个时间分段内选择多个物理资源，即终端设备需要发送的数据量与物理资源粒度出现了不匹配的问题。
本发明实施例提供的应用的网络架构中包括基站和至少一个终端设备，其中，图2中示出了基站20与三个终端设备，如终端设备21、终端设备22、终端设备23的连接示意图。基站20可附加地包括发射机链和接收机链，本领域普通技术人员可以理解，它们均可包括与信号发送和接收相关的多个部件，例如处理器、调制器、复用器、解调器、解复用器或天线等。基站20可以与接入的终端设备，例如接入终端设备21、接入终端设备22和接入终端设备23通信。然而，可以理解，基站20可以与类似于接入终端设备21、22和23的基本上任意数目的接入终端设备通信。接入终端设备21、22和23可以是例如蜂窝电话、智能电话、便携式电脑、手持通信设备、手持计算设备、卫星无线电装置、全球定位系统、PDA和/或任意其它适合设备。在给定时间，基站20、接入终端设备21和/或接入终端设备22和/或接入终端设备23可以是发送无线通信装置和/或接收无线通信装置。当发送数据时，发送无线通信装置可对数据进行编码以用于传输。具体地，发送无线通信装置可具有，例如生成、获得、在存储器中保存等，要通过信道发送至接收无线通信装置的一定数目的信息比特。这种信息比特可包含在数据的传输块或多个传输块中，其可被分段以产生多个码块。此外，发送无线通信装置可使用极性码编码器来对每个码块编码，以提高数据传输的可靠性，进而保证通信质量。
终端设备21、终端设备22、终端设备23初始接入基站20后，分别向基站上报自身的上下文信息，基站20针对接入的每个终端设备对应的上下文信息，对终端设备21、终端设备22、终端设备23进行分组，并确定分组内能够共享的物理资源的个数、时频信息和编码信息，若终端设备21在有上行数据需要发送时，需要获取终端设备21的分组信息，具体的，获取终端设备21所在的分组内能够使用的物理资源的个数N、时频信息和编码信息，基于终端设备21需要传输的数据量，确定需要使用的物理资源的个数，从而与分组内其他终端设备来抢占物理资源，使得终端设备在发送数据时不再需要基站调度物理资源。
需要说明的是，本发明实施例中的物理资源包括用时间和频率构成的时频资源。物理资源的时频信息可以被规定，例如3GPP里面20M带宽下，1个物理资源为一个物理资源块组(resource block group，RBG)，一个RBG包括四个物理资源块(Physical Resource Block，PRB)，一个PRB包括12个子载波。
本发明实施例中的共享物理资源的方案，应用在M个终端设备共享N个物理资源的场景下，每个终端设备都根据各自需要发送的数据量的多少而灵活选择多个物理资源来发送数据，致力于解决基于grant-free模式共享物理资源时，终端设备发送的数据量与物理资源粒度不匹配的问题，降低共享物理资源时终端设备发生冲突的概率，提高物理资源的利用率。
参阅图3所示，本发明实施例提供一种共享物理资源的方法，所述方法应用在共享至少一个物理资源的至少两个终端设备中的任一终端设备，具体流程包括如下步骤：
步骤30：终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于描述所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息。
步骤31：所述终端设备基于所述终端设备待传输的数据量和所述物理资源的属性信息 确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N。
步骤32：所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q。
需要说明的是，终端设备的分组信息中除包括对应分组内能够共享的物理资源的个数N和物理资源的属性信息，还包括其他使终端设备能够接入对应物理资源的相关参数信息。
具体的，所述终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，具体过程为：
所述终端设备向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息；
接收所述基站基于所述终端设备的上下文信息反馈的所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息。
其中，步骤30中，所述终端设备在获取所述终端设备选择任意个物理资源的指示信息时，在具体实施时，可以包括以下三种方式：
第一种方式为：所述终端设备获取所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
第二种方式为：所述终端设备获取所述终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
第三种方式为：所述终端设备获取所述终端设备选择任意个物理资源时，所述终端设备的设备标识符与任意个物理资源标识之间的对应关系。
具体的，所述终端设备确定所述终端设备需要使用的物理资源的个数Q时，基于所述物理资源的属性信息确定所述物理资源规定的数据承载量，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；将所述终端设备待传输的数据量除以每个物理资源规定的数据承载量得到需要使用的资源个数Q。
实际应用中，由于Q取正整数，因此，将所述终端设备待传输的数据量除以每个物理资源规定的数据承载量得到的数值不为正整数时，进行向上取整得到正整数Q。
在该实施例中，由于上述指示信息可以采用三种方式描述，因此，步骤32中从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，对应的也包括以下三种实现方法。
可选的，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，第一种实现方法流程可参阅图4A所示：
循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据或令X递减到X≤0为止，尝试在N个物理资源中第一次选择X个物理资源时，所述X等于Q。
S41：终端设备获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX。
S42：终端设备利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源。
S43：终端设备确定是否选择成功，在选择成功时，执行S44；在选择失败时，执行S45。
S44：若选择成功，终端设备采用选择到的X个物理资源发送所述终端设备待传输的数据。这里的选择成功指的是终端设备采用选择X个物理资源时的概率向量和概率数组能够成功抢占到X个物理资源。
S45：若选择失败，令X递减Y得到新的X，返回S41，Y为预设的正整数，这里的选择失败指的是终端设备采用选择X个物理资源时的概率向量和概率数组不能成功抢占到X个物理资源。
需要说明的是，第一种实现方法中，若物理资源选择成功时，最终得到的物理资源的选择个数X只能为小于等于Q的任一正整数，由于概率向量中各分量之和为1，因此采用概率向量选择物理资源时，最终肯定能够成功选择到至少一个物理资源；由于概率数组中各分量之和小于等于1，因此采用概率数组选择物理资源时，最终可能出现未成功选择到任何一个物理资源的情形。
这种实现方法中，终端设备采用最初尝试选择Q个物理资源，若选择失败则减少选择物理资源个数的策略，来逐步降低物理资源的选择个数。
可选的，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，第二种实现方法流程可参阅图4B所示：
S1：终端设备获取预设的所述终端设备选择X个物理资源时对应的条件概率向量或条件概率数组PX。
其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X为预设的小于等于Q的正整数。
S2：终端设备利用所述条件概率向量或条件概率数组PX尝试在N个物理资源中选择X个物理资源。
S3：终端设备确定是否成功选择X个物理资源，在选择成功时，执行S5；在选择失败时，执行S4。
S4：若选择失败，终端设备确定选择不到任意一个物理资源，流程结束。这里的选择失败指的是终端设备采用选择X个物理资源时的条件概率向量和条件概率数组不能成功抢占到X个物理资源；选择成功指的是终端设备采用选择X个物理资源时的条件概率向量和条件概率数组能够成功抢占到X个物理资源。
S5：若选择成功，终端设备采用在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X继续尝试在剩余的N-X个物理资源中选择Y个物理资源，Y为预设的正整数，且满足X+Y≤Q；
S6：确定是否成功选择Y个物理资源，在选择成功时，执行S8；在选择失败时，执行S7。
S7：若选择失败，终端设备确定选择到X个物理资源；
S8：若选择成功，终端设备判断X+Y是否等于Q，若是，执行S10；否则，执行S9。
S9：将X递加Y得到新的X，返回S5。
S10：将X递加Y得到新的X，终端设备确定选择到X个物理资源。
循环执行上述处理，直至终端设备选择到X个物理资源发送所述终端设备待传输的数据：。
需要说明的是，第二种实现方法与第一种实现方法相同，若物理资源选择成功时，最终得到的物理资源的选择个数X只能为小于等于Q的任一正整数，由于条件概率向量中各分量之和为1，因此采用条件概率向量选择物理资源时，最终肯定能够成功选择到至少一个物理资源；由于条件概率数组中各分量之和小于等于1，因此采用条件概率数组选择物理资源时，最终可能出现未成功选择到任何一个物理资源的情形。
这种实现方法中，终端设备采用最初尝试选择较少的物理资源，若选择成功则在成功的基础上逐步选择更多物理资源的策略，直到成功选择到所需要的Q个物理资源。
可选的，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，第三种实现方法为：
基于设备标识符与需要占用的Q个物理资源分别对应的物理资源标识之间的对应关系，使用所述终端设备对应的设备标识符从所述对应关系中查找到对应的Q个物理资源标识；
从N个物理资源中选择查找到的Q个物理资源标识分别对应的Q个物理资源发送所述终端设备待传输的数据。
需要说明的是，第三种实现方法中，使用终端设备标识符、所需物理资源的个数，与物理资源标识符的映射关系选择物理资源，因此得到的物理资源的选择个数X只能为Q。
下面通过几个实施例来详细说明上述三种实现方法。
实施例一
实施例一描述了上述第一种实现方法中采用概率向量或概率数组的方式共享物理资源的方法，终端设备首先尝试选择终端设备所需要的物理资源的个数，若选择失败则减少选择物理资源个数的策略；这种方法得到抢占物理资源的个数精度较高，适用于终端设备共享的物理资源个数较多的场景，具体步骤如图5所示：
步骤50：任一终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的时频信息和编码信息。
具体的，每个终端设备有选择1个物理资源的概率向量，和选择L个物理资源的概率向量，L的取值范围为大于等于2小于等于N，从而得到第i个终端设备选择L个物理资源的概率向量，L大于等于1，同理，每个终端设备选择L个物理资源的概率数组也可以采用这种方式得到，L大于等于1。
以第i个终端设备为例，i的取值范围为大于等于1小于等于M；第i个终端设备选择1个物理资源的概率向量或概率数组为Pi,1＝[pi,1,…,pi,j,…,pi,N]。
其中pi，j代表第i个终端设备选择第j个物理资源的概率；j的取值范围为大于等于1小于等于N，pi,j的取值范围为大于等于0小于等于1，
Figure PCTCN2017077360-appb-000001
的取值范围为大于等于0小于等于1。
第i个终端设备选择L个物理资源的概率向量或概率数组为
Figure PCTCN2017077360-appb-000002
其中
Figure PCTCN2017077360-appb-000003
代表第i个终端设备选择第j1,j2,…,jL个物理资源的概率；j1,j2,…,jL的取值范围为大于等于1小于等于N且满足j1<j2<…<jL，
Figure PCTCN2017077360-appb-000004
的取值范围为大于等于0小于等于1，
Figure PCTCN2017077360-appb-000005
的取值范围为大于等于0小于等于1。
可选的，确定每个终端设备选择1个物理资源的概率向量或概率数组，和选择至少两个物理资源的概率向量或概率数组时可以采用但不局限于如下方法：
具体的，可参阅图6所示。
步骤S61：终端设备向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息，所述上下文信息包括但不局限于发包概率、包长度概率分布、业务类型，服务质量(Quality of Service，QoS)需求等信息。
步骤S62：基站根据当前所有接入终端设备的上下文信息确定每个终端设备的分组信 息，每个终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
具体的，基站根据当前所有接入终端设备的上下文信息确定每个终端设备的分组信息时，一种可选的实施方式中，基站根据终端设备发包概率，包长度概率分布，物理资源的时频信息，物理资源的编码信息，基于最小化所有物理资源的最大冲突概率，或者最小化所有物理资源上的平均冲突概率为准则，确定优化问题并求解，得到每个终端设备选择K个物理资源的概率向量表达式或概率数组表达式。
物理资源的时频信息A可以事先在协议中规定，物理资源的编码信息B根据信道状态信息确定，从而得到每个物理资源规定的数据承载量C，由于C是A，B的函数，用C(A,B)表示每个物理资源规定的数据承载量。
例如，设终端设备i发包概率fi,包长度概率分布gi(x)，其中x为包长度，则当前时刻需要使用Q个物理资源的概率分布为
Figure PCTCN2017077360-appb-000006
设终端设备i选择K个物理资源的选择概率为Pi(K)＝[pi,(1,2,…K),pi,(2,2,…K+1),…]；则对于任意一个物理资源X，被终端设备i选到的概率为
Figure PCTCN2017077360-appb-000007
公式中第一部分表示终端设备i选择Q个资源时选择到物理资源X，第二部分表示用户i选择Q个物理资源失败后，选择Q-1、Q-2个物理资源时选择到物理资源X；所以物理资源X发生抢占冲突的概率为：
Figure PCTCN2017077360-appb-000008
公式中第一部分表示没有终端设备i选择物理资源X，第二部分表示只有一个终端设备选择物理资源X；当以最小化所有物理资源的最大冲突概率为准则时，以
Figure PCTCN2017077360-appb-000009
为目标，获得优化的Pi(K)；当以最小化所有物理资源上的平均冲突概率为准则时，以
Figure PCTCN2017077360-appb-000010
为目标，获得优化的Pi(K)。
具体的，基站根据当前所有接入终端设备的上下文信息确定每个终端设备的分组信息时，另一种的可选的实施方式中，基于协议中定义的分组内终端设备的发包概率，所述分组内终端设备的包长度概率分布，所述分组内终端设备个数，所述分组的物理资源的时频信息和编码信息，与所述终端设备选择任意个物理资源的概率的对应关系。
由于系统中有些终端设备抢占一些物理资源的概率为0，可以将终端设备进行分组，每组终端设备只抢占总物理资源资源中的一部分，具体的对终端设备的分组可以基于终端设备抢占物理资源的概率确定，具体原则不唯一。
步骤S63:基站向终端设备反馈资源响应消息，所述资源响应消息中携带分组信息和选择任意个物理资源的概率向量表达式或概率数组表达式。
具体的，基站通过终端设备专用信道向终端设备反馈分组内能够使用的物理资源的个数N和该分组能够使用的组播信道等信息，基站通过组播信道，向分组内终端设备反馈所述分组所能使用的物理资源的时频信息和编码信息。
具体的，在固定反馈比特的情况下，协议中定义不同的反馈比特取值对应的概率取值 区间。基站根据所述终端设备选择任意个物理资源的概率，对照所述协议，确定该概率对应的反馈比特信息；所述基站采用所述终端设备专用信道，向所述终端设备反馈所述反馈比特信息；终端设备根据接收到的所述反馈比特信息，查询协议，得到选择任意个物理资源的概率向量或概率数组表达式。
步骤51：在第i个终端设备有数据需要传输的情形下，执行步骤52；在第i个终端设备没有数据需要传输的情形下，执行步骤58。
步骤52：根据需要发送的数据量的多少确定选择L′个物理资源，L′的取值范围为大于等于1小于等于N。
步骤53：第i个终端设备采用概率向量或概率数组中选择L′个物理资源对应的概率值Pi,L′选择L′个物理资源。
步骤54：判断是否成功选择了L′个物理资源，如果选择成功，执行步骤55；如果选择失败，执行步骤56。
步骤55：第i个终端设备采用选择的L′个物理资源发送数据并结束。
步骤56：设置L′＝L′-Y，Y为预设的正整数，可选的，本实施例中Y设置为1，令L’依次递减1。
步骤57：判断是否满足L′≤0，若是，则执行步骤58；否则，执行步骤53继续选择物理资源。
步骤58：第i个终端设备不发送数据并结束。
实施例二
实施例二描述了上述第二种实现方法中采用条件概率向量或条件概率数组的方式共享物理资源的方法，终端设备首先尝试选择较少物理资源，若选择成功则在成功的基础上逐步选择更多的物理资源，这种方法得到抢占物理资源的个数精度较高，适用于终端设备共享的物理资源个数较少的场景，具体步骤如图7所示：
步骤70：任一终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的条件概率向量或条件概率数组。
具体的，实施例一中给出了每个终端设备有选择L个物理资源的概率向量或概率数组。针对在选择了F个物理资源条件下，选择G个物理资源的条件概率向量或条件概率数组，以第i个终端设备为例，i的取值范围为大于等于1小于等于M；第i个终端设备选择L个物理资源的概率向量为
Figure PCTCN2017077360-appb-000011
其中
Figure PCTCN2017077360-appb-000012
代表第i个终端设备选择第j1,j2,…,jL个物理资源的概率；j1,j2,…,jL的取值范围为大于等于1小于等于N且满足
Figure PCTCN2017077360-appb-000013
的取值范围为大于等于0小于等于1,
Figure PCTCN2017077360-appb-000014
的取值范围为大于等于0小于等于1。
第i个终端设备在选择了F个物理资源条件下，选择G个物理资源的条件概率向量为
Figure PCTCN2017077360-appb-000015
其中
Figure PCTCN2017077360-appb-000016
代表第i个终端设备在选择了第k1,k2,…,kF个物理资源的条件下，选择第j1,j2,…,jL个物理资源的条件概率；k1,k2,…,kF的取值范围为大于等于1小于等于N，
Figure PCTCN2017077360-appb-000017
的取值范围为大于等于0小于等于1,
Figure PCTCN2017077360-appb-000018
的取值范围为大于等于0小于等于1，同理，每个终端设备在选择了F个物理资源条件下，选择G个物理 资源的条件概率数组也可以采用这种方式得到。
可选的，确定每个终端设备选择任意个物理资源的条件概率向量或条件概率数组时可以采用但不局限于如下方法：
具体的，可参阅图8所示。
步骤S81：终端设备向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息，所述上下文信息包括但不局限于发包概率、包长度概率分布、业务类型，服务质量(Quality of Service，QoS)需求等信息。
步骤S82：基站根据当前所有接入终端设备的上下文信息确定每个终端设备的分组信息，每个终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
具体的，基站根据当前所有接入终端设备的上下文信息确定每个终端设备的分组信息时，一种可选的实施方式中，基站根据终端设备发包概率，包长度概率分布，物理资源的时频信息，物理资源的编码信息，基于最小化所有物理资源的最大冲突概率，或者最小化所有物理资源上的平均冲突概率为准则，确定优化问题并求解，得到每个终端设备选择K个物理资源的概率向量表达式或概率数组表达式。
具体的，基站根据当前所有接入终端设备的上下文信息确定每个终端设备的分组信息时，另一种可选的实施方式中，基于协议中定义的分组内终端设备的发包概率，所述分组内终端设备的包长度概率分布，所述分组内终端设备个数，所述分组的物理资源的时频信息和编码信息，与所述终端设备选择任意个物理资源的条件概率的对应关系。
由于系统中有些终端设备抢占一些物理资源的概率为0，可以将终端设备进行分组，每组终端设备只抢占总物理资源资源中的一部分，具体的对终端设备的分组可以基于终端设备抢占物理资源的概率确定，具体原则不唯一。
步骤S83:基站向终端设备反馈资源响应消息，所述资源响应消息中携带分组信息和选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
具体的，基站通过终端设备专用信道向终端设备反馈分组内能够使用的物理资源的个数N和该分组能够使用的组播信道等信息，基站通过组播信道，向分组内终端设备反馈所述分组所能使用的物理资源的时频信息和编码信息。
具体的，在固定反馈比特的情况下，协议中定义不同的反馈比特取值对应的概率取值区间。基站根据所述终端设备选择任意个物理资源的条件概率，对照所述协议，确定该概率对应的反馈比特信息；所述基站采用所述终端设备专用信道，向所述终端设备反馈所述反馈比特信息；终端设备根据接收到的所述反馈比特信息，查询协议，得到选择任意个物理资源的条件概率向量或条件概率数组表达式。
步骤71：在第i个终端设备有数据需要传输的情形下，执行步骤72；在第i个终端设备没有数据需要传输的情形下，执行步骤75。
步骤72：根据需要发送的数据量的多少确定选择L′个物理资源，L′的取值范围为大于等于1小于等于N。
步骤73：第i个终端设备采用条件概率向量或条件概率数组中选择L*个物理资源对应的概率值
Figure PCTCN2017077360-appb-000019
选择L*个物理资源；L*的取值范围为大于等于1小于等于L′，L*为预设的小于等于Q的正整数，可选的，本实施例中L*设置为1。
步骤74：判断是否成功选择了L*个物理资源，如果选择失败，执行步骤75；如果选择成功，则执行步骤76。
步骤75：第i个终端设备不发送数据并结束。
步骤76：第i个终端设备采用条件概率向量或条件概率数组中继续选择L**个物理资源对应的概率值
Figure PCTCN2017077360-appb-000020
继续选择L**个物理资源；L**为预设的正整数，且满足L*+L**的取值范围为大于等于1小于等于L′。
步骤77：判断是否成功选择了L**个物理资源，如果选择成功，执行步骤78；如果选择失败，则执行步骤710。
步骤78：设置L*＝L*+L**。
步骤79：判断是否满足L*＝L′,若是，则执行步骤410；否则执行步骤46继续选择物理资源。
步骤710：第i个终端设备采用选择的L*个物理资源发送数据并结束。
实施例三
实施例三描述了上述第三种实现方法中采用资源映射的方式共享物理资源的方法，应用M个终端设备采用grant-free模式共享N个物理资源中的任意一个终端设备，具体步骤如图9所示：
步骤90：基站确定第i个终端设备选择L个物理资源时，物理资源标识与终端设备标识符的映射关系，i的取值范围为大于等于1小于等于M；L的取值范围为大于等于1小于等于N。
具体的，以第i个终端设备为例，基站确定第i个终端设备选择1个物理资源时，物理资源标识与终端设备标识符的映射关系，和选择L个物理资源时，物理资源标识与终端设备标识符的映射关系,L的取值范围为大于等于1小于等于N，从而得到第i个终端设备选择L个物理资源时，物理资源标识与设备标识符的映射关系，L的取值范围为大于等于1小于等于N。
可选的，确定每个终端设备选择任意个物理资源的物理资源标识与终端设备标识符的映射关系时可以采用但不局限于如下方法，如图10所示：
步骤S101：终端设备向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息，所述上下文信息包括但不局限于发包概率、包长度概率分布、业务类型，服务质量(Quality of Service，QoS)需求等信息。
步骤S102：基站根据当前所有接入终端设备的上下文信息确定每个终端设备的分组信息，每个终端设备选择任意个物理资源的物理资源标识与终端设备标识符的映射关系。
具体的，协议中定义终端设备标识符、所需物理资源的个数，与物理资源标识符的映射关系。
步骤S103:基站向终端设备反馈资源响应消息，所述资源响应消息中携带分组信息、所述终端设备的设备标识符和所述终端设备选择任意个物理资源的物理资源标识与终端设备标识符的映射关系。
步骤91：在第i个终端设备有数据需要传输的情形下，执行步骤92；否则执行步骤95。
步骤92：根据需要发送的数据量的多少确定选择L′个物理资源。
步骤93：第i个终端设备获取选择L′个物理资源时，物理资源标识与设备标识符的映射关系，确定与L′个物理资源标识对应的L′个物理资源；L′的取值范围为大于等于1小于等于N。
具体的，协议中定义终端设备标识符、所需物理资源的个数，与物理资源标识符的映射关系。
终端设备根据终端设备标识符，查询协议，得到选择L′个物理资源时与该设备标识符对应的L′个物理资源标识，从而选择出L′个物理资源。
步骤94：第i个终端设备采用选择的L′个物理资源发送数据并结束。
步骤95：第i个终端设备不发送数据并结束。
如图11所示，为本发明实施例提供的共享物理资源的终端设备结构示意图。该终端设备1100可以用于执行图3-图10所示的方法中终端设备的执行过程。该终端设备1100包括：收发单元110和处理单元111，其中：
收发单元110，用于获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
处理单元111，用于基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N；
所述处理单元111，还用于利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q。
可选的，所述收发单元110在获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息时，具体用于：
向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息；
接收所述基站基于所述终端设备的上下文信息反馈的所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息。
可选的，所述收发单元110在获取所述终端设备选择任意个物理资源的指示信息时，具体用于：
获取所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
可选的，所述收发单元110在获取所述终端设备选择任意个物理资源的指示信息时，具体用于：
获取所述终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
可选的，所述收发单元110在获取所述终端设备选择任意个物理资源的指示信息时，具体用于：
获取所述终端设备选择任意个物理资源时，所述终端设备的设备标识符与任意个物理资源标识之间的对应关系。
可选的，所述处理单元111在基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q时，具体用于：
基于所述物理资源的属性信息确定所述物理资源规定的数据承载量，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
将所述终端设备待传输的数据量除以每个物理资源规定的数据承载量得到需要使用的资源个数Q。
可选的，所述处理单元111在利用所述指示信息，从N个物理资源中动态选择X个物 理资源发送所述终端设备待传输的数据时，具体用于：
循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据或X≤0为止：
获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
若选择成功，采用选择到的X个物理资源发送所述终端设备待传输的数据；
若选择失败，令X递减Y得到新的X，Y为预设的正整数；
其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X等于Q。
可选的，所述处理单元111在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
若选择失败，则确定选择不到任意一个物理资源；
若选择成功，循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据：
获取预设的所述终端设备在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X,采用所述的在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X继续尝试在剩余的N-X个物理资源中选择Y个物理资源，Y为预设的正整数，且满足X+Y≤Q；
若选择失败，则确定选择到X个物理资源；
若选择成功，判断X+Y是否等于Q，若是，则将X递加Y得到新的X，确定选择到X个物理资源；否则，将X递加Y得到新的X；
其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X为预设的小于等于Q的正整数。
可选的，所述处理单元111在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
基于设备标识符与需要占用的Q个物理资源分别对应的物理资源标识之间的对应关系，使用所述终端设备对应的设备标识符从所述对应关系中查找到对应的Q个物理资源标识；
从N个物理资源中选择查找到的Q个物理资源标识分别对应的Q个物理资源发送所述终端设备待传输的数据。
本发明实施例上述涉及的终端设备1100，可以是独立的部件，也可以是集成于其他部件中，例如本发明实施例提供的上述终端设备1100可以是现有通信网络中的基站，也可以是集成于基站内的部件。
需要说明的是，本发明实施例中的终端设备1100的各个单元的功能实现以及交互方式可以进一步参照相关方法实施例的描述，在此不再赘述。
另外，以上各“单元”可以通过特定应用集成电路(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来实现。
基于相同的构思，如图12所示，为本发明实施例提供的另一种终端设备结构示意图。该终端设备1200可以用于执行图3-图10所示的方法中终端设备的执行过程。其中：该终 端设备1200可以是无线终端，无线终端可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(例如，RAN，Radio Access Network)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(PCS，Personal Communication Service)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(WLL，Wireless Local Loop)站、个人数字助理(PDA，Personal Digital Assistant)等设备。无线终端也可以称为订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户设备(User Equipment)。
参见图12，该终端设备1200包括：处理器1201、存储器1202和收发器1203，其中：
所述处理器1201、存储器1202、收发器1203通过总线1204相互连接。
所述处理器1201，用于调用所述存储器1202中存储的程序，执行：通过所述收发器1203获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N；利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q。
收发器1203可以是有线收发器，无线收发器或其组合。有线收发器例如可以为以太网接口。以太网接口可以是光接口，电接口或其组合。无线收发器例如可以为无线局域网收发器，蜂窝网络收发器或其组合。处理器1201可以是CPU，NP或者CPU和NP的组合。处理器1201还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路ASIC，PLD或其组合。上述PLD可以是CPLD，FPGA，GAL或其任意组合。存储器1202可以包括易失性存储器，例如RAM；存储器1202也可以包括非易失性存储器，例如ROM，快闪存储器，HDD或SSD；存储器1202还可以包括上述种类的存储器的组合。
存储器1202可以用于存储所述收发器1203接收到的消息，以及处理器1201执行的程序。
其中，在图12中，总线1204可以包括任意数量的互联的总线和桥，具体由处理器1201代表的一个或多个处理器和存储器1202代表的存储器的各种电路连接在一起。所述总线1204可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图12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。总线1204还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路连接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
如图13所示，为本发明实施例提供的共享物理资源的网络设备结构示意图。该网络 设备1300可以用于执行上述方法实施例中基站的执行过程。参见图13，该网络设备1300包括：收发单元130和处理单元131，其中：
收发单元130，用于接收至少一个终端设备发送的资源请求，所述资源请求中包括所述终端设备的上下文信息；
处理单元131，用于基于所述至少一个终端设备的上下文信息，确定每个终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息；
所述收发单元130，还用于向每个终端设备反馈所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括所述终端设备所在的分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息。
可选的，所述收发单元130在向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息时，具体用于：
向所述终端设备反馈所述终端设备选择任意个物理资源的概率向量表达式或概率数组表达式。
结合第四方面，一种可能的设计方式中，所述收发单元130在向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息时，具体用于：
向所述终端设备反馈所述终端设备选择任意个物理资源的条件概率向量表达式或条件概率数组表达式。
可选的，所述收发单元130在向每个终端设备反馈所述终端设备选择任意个物理资源的指示信息时，具体用于：
向所述终端设备反馈所述终端设备选择任意个物理资源时，所述终端设备的设备标识符与任意个物理资源标识之间的对应关系。
本发明实施例上述涉及的网络设备1300，可以是独立的部件，也可以是集成于其他部件中，例如本发明实施例提供的上述终端设备可以是现有通信网络中的基站，也可以是集成于基站内的部件。
需要说明的是，本发明实施例中的网络设备1300的各个单元的功能实现以及交互方式可以进一步参照相关方法实施例的描述，在此不再赘述。
另外，以上各“单元”可以通过特定应用集成电路(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来实现。
基于相同的构思，如图14所示，本发明实施例提供的另一种网络设备结构示意图。该网络设备1400可以用于执行上述方法实施例中基站的执行过程。该网络设备1400可包括基站，或用于控制基站的无线资源管理设备，或包括基站和用于控制基站的无线资源管理设备；其中基站可为宏站或小站，比如：小小区(small cell)、微小区(pico cell)等，基站也可为家庭基站，比如：家庭节点B(Home NodeB，HNB)、家庭演进节点B(Home eNodeB，HeNB)等，基站也可包括中继节点(relay)等。比如：对于LTE系统，该网络设备可为演进节点B(evolved NodeB，eNodeB)，对于TD-SCDMA系统或WCDMA系统，该网络设备可包括：节点B(NodeB)和/或无线网络控制器(Radio Network Controller，RNC)。
参见图14，该网络设备1400包括：处理器1401、存储器1402、收发器1403，其中：
所述处理器1401、存储器1402、收发器1403通过总线1404相互连接。
收发器1403可以是有线收发器，无线收发器或其组合。有线收发器例如可以为以太网接口。以太网接口可以是光接口，电接口或其组合。无线收发器例如可以为无线局域网收发器，蜂窝网络收发器或其组合。处理器1401可以是CPU，NP或者CPU和NP的组合。处理器1401还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路ASIC，PLD或其组合。上述PLD可以是CPLD，FPGA，GAL或其任意组合。存储器1402可以包括易失性存储器，例如RAM；存储器1402也可以包括非易失性存储器，例如ROM，快闪存储器，HDD或SSD；存储器1402还可以包括上述种类的存储器的组合。
存储器1402可以用于存储所述收发器1403接收到的消息，以及处理器1401执行的程序。
所述处理器1401，用于调用所述存储器1402中存储的程序，执行：通过所述收发器1403接收至少一个终端设备发送的资源请求，所述资源请求中包括所述终端设备的上下文信息；基于所述至少一个终端设备的上下文信息，确定每个终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息；通过所述收发器1403向每个终端设备反馈所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括所述终端设备所在的分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息。
其中，在图14中，总线1404可以包括任意数量的互联的总线和桥，具体由处理器1401代表的一个或多个处理器和存储器1402代表的存储器的各种电路连接在一起。所述总线1404可以是外设部件互连标准(peripheral component interconnect，简称PCI)总线或扩展工业标准结构(extended industry standard architecture，简称EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图14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。总线1404还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路连接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
综上所述，本发明实施例中，共享N个物理资源的M个终端设备中的任一终端设备，获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N；利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q，这样，终端设备需要发送数据时能够根据终端设备需要传输的数据量，确定所述终端设备所需的物理资源个数Q，从而从N个物理资源中选择至少一个物理资源发送所述终端设备待传输的数据，解决了终端设备发送的数据量与物理资源的承载粒度不匹配的问题，降低共享物理资源时终端设备发生冲突的概率，并提高物理资源的利用率。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、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。
本发明是参照根据本发明实施例的方法、设备(系统)、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。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (14)

  1. 一种共享物理资源的方法，其特征在于，应用在共享至少一个物理资源的至少两个终端设备中的任一终端设备，包括：
    所述终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
    所述终端设备基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N；
    所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q。
  2. 如权利要求1所述的方法，其特征在于，所述终端设备获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，包括：
    所述终端设备向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息；
    所述终端设备接收所述基站基于所述终端设备的上下文信息反馈的所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息。
  3. 如权利要求1所述的方法，其特征在于，所述终端设备基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，包括：
    所述终端设备基于所述物理资源的属性信息确定所述物理资源规定的数据承载量，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
    所述终端设备将所述终端设备待传输的数据量除以每个物理资源规定的数据承载量得到需要使用的资源个数Q。
  4. 如权利要求1-3任一项所述的方法，其特征在于，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，包括：
    所述终端设备循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据或X≤0为止：
    获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
    若选择成功，采用选择到的X个物理资源发送所述终端设备待传输的数据；
    若选择失败，令X递减Y得到新的X，Y为预设的正整数；
    其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X等于Q。
  5. 如权利要求1-3任一项所述的方法，其特征在于，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，包括：
    所述终端设备获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
    若选择失败，则确定选择不到任意一个物理资源；
    若选择成功，循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输 的数据：
    采用在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X继续尝试在剩余的N-X个物理资源中选择Y个物理资源，Y为预设的正整数，且满足X+Y≤Q；
    若选择失败，则确定选择到X个物理资源；
    若选择成功，判断X+Y是否等于Q，若是，则将X递加Y得到新的X，确定选择到X个物理资源；否则，将X递加Y得到新的X；
    其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X为预设的小于等于Q的正整数。
  6. 如权利要求1-3任一项所述的方法，其特征在于，所述终端设备利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，包括：
    所述终端设备基于设备标识符与需要占用的Q个物理资源分别对应的物理资源标识之间的对应关系，使用所述终端设备对应的设备标识符从所述对应关系中查找到对应的Q个物理资源标识；
    所述终端设备从N个物理资源中选择查找到的Q个物理资源标识分别对应的Q个物理资源发送所述终端设备待传输的数据。
  7. 一种共享物理资源的方法，其特征在于，包括：
    基站接收至少一个终端设备发送的资源请求，所述资源请求中包括所述终端设备的上下文信息；
    所述基站基于所述至少一个终端设备的上下文信息，确定每个终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，并向每个终端设备反馈所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括所述终端设备所在的分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息。
  8. 一种终端设备，其特征在于，包括：
    收发器、处理器和存储器，其中，所述存储器用于存储指令，所述处理器用于调用所述指令执行以下处理：
    通过所述收发器获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
    基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q，1≤Q≤N；
    利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据，N，X，Q均为正整数，1≤X≤Q。
  9. 如权利要求8所述的终端设备，其特征在于，所述收发器在获取所述终端设备的分组信息，以及所述终端设备选择任意个物理资源的指示信息，时，具体用于：
    向基站发送资源请求，所述资源请求中包括所述终端设备的上下文信息；
    接收所述基站基于所述终端设备的上下文信息反馈的所述终端设备所在的分组的分 组信息以及所述终端设备选择任意个物理资源的指示信息。
  10. 如权利要求8所述的终端设备，其特征在于，所述处理器在基于所述终端设备待传输的数据量和所述物理资源的属性信息确定所述终端设备需要使用的物理资源的个数Q时，具体用于：
    所述终端设备基于所述物理资源的属性信息确定所述物理资源规定的数据承载量，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息；
    所述终端设备将所述终端设备待传输的数据量除以每个物理资源规定的数据承载量得到需要使用的资源个数Q。
  11. 如权利要求8-10任一项所述的终端设备，其特征在于，所述处理器在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
    循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据或X≤0为止：
    获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
    若选择成功，采用选择到的X个物理资源发送所述终端设备待传输的数据；
    若选择失败，令X递减Y得到新的X，Y为预设的正整数；
    其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X等于Q。
  12. 如权利要求8-10任一项所述的终端设备，其特征在于，所述处理器在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
    获取预设的所述终端设备选择X个物理资源时对应的选择概率向量或概率数组PX，利用所述选择概率向量或概率数组PX尝试在N个物理资源中选择X个物理资源；
    若选择失败，则确定选择不到任意一个物理资源；
    若选择成功，循环执行如下处理，直至选择到X个物理资源发送所述终端设备待传输的数据：
    获取预设的所述终端设备在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X,采用所述的在选择X个物理资源的条件下，继续选择Y个物理资源的条件概率向量或条件概率数组PY∣X继续尝试在剩余的N-X个物理资源中选择Y个物理资源，Y为预设的正整数，且满足X+Y≤Q；
    若选择失败，则确定选择到X个物理资源；
    若选择成功，判断X+Y是否等于Q，若是，则将X递加Y得到新的X，确定选择到X个物理资源；否则，将X递加Y得到新的X；
    其中，尝试在N个物理资源中第一次选择X个物理资源时，所述X为预设的小于等于Q的正整数。
  13. 如权利要求8-10任一项所述的终端设备，其特征在于，所述处理器在利用所述指示信息，从N个物理资源中动态选择X个物理资源发送所述终端设备待传输的数据时，具体用于：
    基于设备标识符与需要占用的Q个物理资源分别对应的物理资源标识之间的对应关系，使用所述终端设备对应的设备标识符从所述对应关系中查找到对应的Q个物理资源标识；
    从N个物理资源中选择查找到的Q个物理资源标识分别对应的Q个物理资源发送所述终端设备待传输的数据。
  14. 一种共享物理资源的网络设备，其特征在于，包括：
    收发器、处理器和存储器，其中，所述存储器用于存储指令，所述处理器用于调用所述指令执行以下处理：
    通过所述收发器接收至少一个终端设备发送的资源请求，所述资源请求中包括所述终端设备的上下文信息；
    基于所述至少一个终端设备的上下文信息，确定每个终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息；
    通过所述收发器向每个终端设备反馈所述终端设备所在的分组的分组信息以及所述终端设备选择任意个物理资源的指示信息，所述分组信息包括所述终端设备所在的分组内能够共享的物理资源的个数N和物理资源的属性信息，所述指示信息用于指示所述终端设备与任意个物理资源之间的映射关系，所述物理资源的属性信息包括所述物理资源的时频信息和编码信息。
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