WO2019028924A1 - 一种通信方法及相关设备 - Google Patents

一种通信方法及相关设备 Download PDF

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Publication number
WO2019028924A1
WO2019028924A1 PCT/CN2017/097283 CN2017097283W WO2019028924A1 WO 2019028924 A1 WO2019028924 A1 WO 2019028924A1 CN 2017097283 W CN2017097283 W CN 2017097283W WO 2019028924 A1 WO2019028924 A1 WO 2019028924A1
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WIPO (PCT)
Prior art keywords
network device
cell
request message
collaboration group
message
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PCT/CN2017/097283
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English (en)
French (fr)
Inventor
唐珣
权威
张戬
柴丽
苗金华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2017/097283 priority Critical patent/WO2019028924A1/zh
Priority to CN201780093636.7A priority patent/CN110999455B/zh
Publication of WO2019028924A1 publication Critical patent/WO2019028924A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method and related devices.
  • the cellular communication system is mainly designed for ground terminals. If the cellular communication system can support the drone, it will help the drone to fly long distances, so that the drone can fully utilize functions such as picture capture, video capture, and transportation. Thereby bringing greater convenience to people's lives.
  • the flying height of the drone exceeds the base station, there is no obstruction between the other devices (including the base station and the ground terminal), so the signals sent by many devices are easily received by the drone, and the drone sends the Signals are also easily received by many devices. As shown in FIG.
  • the drone when the drone in the high altitude communicates with the base station 0 providing the service, since there is no obstruction obstruction between the drone and the base station 1, the base station 2, the ground terminal 1 and the ground terminal 2,
  • the signal transmitted by the drone may be received by the base station 1, the base station 2, the ground terminal 1 and the ground terminal 2.
  • the signals transmitted by the base station 1, the base station 2, the ground terminal 1 and the ground terminal 2 may also be received by the drone.
  • the embodiment of the invention discloses a communication method and related device, which can establish a cooperation group to reduce interference when the terminal device communicates and can reduce handover.
  • an embodiment of the present invention provides a communication method, where the method includes: first, a first network device sends a first request message to a second network device, where the first request message is used to request the second network device.
  • the cell is added to the collaboration group, and the collaboration group includes the cell of the first network device; the cell in the collaboration group is used to allocate a part of resources to form a first resource set, and the resource included in the first resource set is periodic.
  • the resource for co-directional transmission in the first resource set occupies the same frequency band
  • the first resource set is used by the network device to communicate with the terminal device; and then the first network device receives the second network device to send The response message for the first request message; then, if the response message indicates that the cell of the second network device is allowed to join the cooperation group, the first network device joins the cell of the second network device to the cooperation group.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices. At the same time, since this method expands the serving cell range of the terminal, there is also an effect of reducing cell switching.
  • the first network device sends a second request message to the second network device, where the second request message is used to request the second The network device enters a low interference mode.
  • the method before the first network device sends the first request message to the second network device, includes: determining, by the first network device, that a cell of the second network device meets a condition for joining the cooperation group.
  • the method further includes: determining, by the first network device, that the cell of the second network device meets a condition for exiting the collaboration group;
  • the first network device sends a third request message to the second network device, where the third request message is used to indicate that the cell of the second network device is deleted from the collaboration group; the first network device uses the second network The cell of the device is deleted from the collaboration group.
  • the method further includes: determining, by the first network device, that the cell is not satisfied as the terminal a condition for providing a service; the first network device sends a fourth request message to the third network device, where the fourth request message is used to request the third network device as an anchor network device that communicates with the terminal device, the third network
  • the cell of the device belongs to the collaboration group and satisfies the conditions for providing services for the terminal.
  • the method further includes: the first network device sends a fifth to the mobility management node MME And a request message, the fifth request message is used to request to establish an S1 connection between the MME and a network device of each cell in the collaboration group for the terminal.
  • the first resource set includes a resource for uplink transmission;
  • the uplink transmission includes data Transmission of a channel and including transmission of at least one of a reference signal, a random access channel, and a control channel.
  • an embodiment of the present invention provides a communication method, where the method includes: first, a second network device receives a first request message sent by a first network device, where the first request message is used to request the second network device
  • the cell is added to the collaboration group, and the collaboration group includes the cell of the first network device; the cell in the collaboration group is used to allocate a part of resources to form a first resource set, and the resource included in the first resource set is periodic.
  • the resource for co-directional transmission in the first resource set occupies the same frequency band
  • the first resource set is used for the network device to communicate with the terminal device; and then the second network device sends the second network device to the first network device
  • the response message is used by the first network device to determine whether to join the second network device to the collaboration group.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices. At the same time, since this method expands the serving cell range of the terminal, there is also an effect of reducing cell switching.
  • the method further includes: determining, by the second network device, that the user meets the condition for joining the collaboration group according to the first request message; if yes, the response message is used by Instructing the first network device to join the second network device to the collaboration group; if not, the response message is used to indicate that the first network device does not join the second network device to the collaboration group.
  • the second network device sends the first request message to the first network device After the response message, if the first network device joins the second network device to the collaboration group, the method further includes: receiving, by the second network device, the third request message sent by the first network device, the third request The message is used to indicate that the cell of the second network device is deleted from the collaboration group.
  • the second network device sends the first request message to the first network device After the response message, if the first network device joins the second network device to the collaboration group, the method further includes: receiving, by the second network device, the fourth request message sent by the first network device, the fourth request The message is used to request the second network device as an anchor network device that communicates with the terminal device; the second network device configures itself as the anchor device according to the fourth request message.
  • the first resource set includes a time-frequency resource for uplink transmission;
  • the transmission of the data channel is included and includes transmission of at least one of a reference signal, a random access channel, and a control channel.
  • the first resource set includes a time-frequency resource for downlink transmission, and the downlink transmission
  • the transmission of the data channel is included and includes transmission of at least one of a synchronization signal, a reference signal for measurement or demodulation, and a control channel.
  • an embodiment of the present invention provides a first network device, where the first network device includes a processor, a memory, and a transceiver, where the memory is used to store an instruction, and the processor is configured to invoke an instruction in the memory to perform the following Operation: First, the first request message is sent to the second network device by using the transceiver, where the first request message is used to request to join the cell of the second network device to the collaboration group, where the collaboration group includes the cell of the first network device The cell in the collaboration group is used to allocate a part of resources to form a first resource set, the resources included in the first resource set are periodic, and resources in the first resource set for co-directional transmission Having the same frequency band, the first resource set is used by the network device to communicate with the terminal device; and then, the transceiver receives the response message sent by the second network device for the first request message; and then, if the response message indicates The cell of the second network device is allowed to join the cooperation group, and the cell of the second network device is added
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices. At the same time, since this method expands the serving cell range of the terminal, there is also an effect of reducing cell switching.
  • the processor is further configured to: pass the The transmitter sends a second request message to the second network device, where the second request message is used to request the second network device to enter a low interference mode.
  • the processor before the processor sends the first request message to the second network device by using the transceiver And the method is further configured to: determine that the cell of the second network device meets a condition for joining the collaboration group.
  • a third possible implementation manner of the third aspect after the processor joins the cell of the second network device to the collaboration group, For determining that the cell of the second network device meets the condition for exiting the cooperation group; sending, by the transceiver, a third request message to the second network device, where the third request message is used to indicate that the second network device is The cell is deleted from the collaboration group; the cell of the second network device is deleted from the collaboration group.
  • the processor is further configured to: determine that the cell of the user does not satisfy the service provided by the terminal a fourth request message is sent by the transceiver to the third network device, where the fourth request message is used to request the third network device to be an anchor network device that communicates with the terminal device, where the cell of the third network device belongs to The collaboration group also satisfies the conditions for providing services to the terminal.
  • the processor is further configured to: send, by using the transceiver, the mobile management node MME And a fifth request message, the fifth request message is used to request to establish an S1 connection between the MME and a network device of each cell in the collaboration group for the terminal.
  • the first resource set includes a time-frequency resource for uplink transmission;
  • the transmission of the data channel is included and includes transmission of at least one of a reference signal, a random access channel, and a control channel.
  • the first resource set includes a time-frequency resource for downlink transmission, and the downlink transmission
  • the transmission of the data channel is included and includes transmission of at least one of a synchronization signal, a reference signal for measurement or demodulation, and a control channel.
  • an embodiment of the present invention provides a second network device, where the second network device includes a processor, a memory, and a transceiver, where the memory is used to store an instruction, and the processor is configured to invoke an instruction in the memory to perform the following Operation: first, receiving, by the transceiver, a first request message sent by the first network device, where the first request message is used to request to add a cell of the second network device to a collaboration group, where the collaboration group includes the first network device a cell in the cooperative group is configured to allocate a part of resources to form a first resource set, where the resources included in the first resource set are periodic, and the first resource set is used for co-directional transmission.
  • the resource occupies the same frequency band, and the first resource set is used by the network device to communicate with the terminal device; and then, the transceiver sends a response message for the first request message to the first network device, where the response message is used for the first
  • a network device determines whether to join the second network device to the collaboration group.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know the resources in the first resource set It is used for the terminal device to use, so when the terminal device communicates with the resources in the first resource set, interference between devices other than the terminal device can be reduced. At the same time, since this method expands the serving cell range of the terminal, there is also an effect of reducing cell switching.
  • the processor is further configured to: determine, according to the first request message, that the self meets a condition for joining the collaboration group; if yes, the response message is used Instructing the first network device to join the second network device to the collaboration group; if not, the response message is used to indicate that the first network device does not join the second network device to the collaboration group.
  • the processor sends, by the transceiver, the first network device to the first After the response message of the request message, if the first network device joins the second network device to the collaboration group, the processor is further configured to: receive, by the transceiver, a third request message sent by the first network device, where The third request message is used to indicate that the cell of the second network device is deleted from the collaboration group.
  • the processor sends, by the transceiver, the first network device to the first After the response message of the request message, if the first network device joins the second network device to the cooperation group, the processor is further configured to receive, by the transceiver, a fourth request message sent by the first network device, where The fourth request message is configured to request the second network device as an anchor network device that communicates with the terminal device; configure itself as the anchor device according to the fourth request message.
  • the first resource set includes a time-frequency resource for uplink transmission;
  • the transmission of the data channel is included and includes transmission of at least one of a reference signal, a random access channel, and a control channel.
  • an embodiment of the present invention provides a first network device, where the first network device includes a first sending unit, a first receiving unit, and an adding unit, wherein each unit is described as follows.
  • a first sending unit configured to send, to the second network device, a first request message, where the first request message is used to request to add a cell of the second network device to the collaboration group, where the cooperation group includes a cell of the first network device;
  • the cells in the collaboration group are used to allocate a part of resources to form a first resource set, the resources included in the first resource set are periodic, and the resources used in the first resource set are used for co-directional transmission.
  • the first resource set is used for the network device to communicate with the terminal device;
  • the first receiving unit is configured to receive a response message sent by the second network device for the first request message, and add a unit, where When the response message indicates that the cell of the second network device is allowed to join the cooperation group, the cell of the second network device is added to the cooperation group.
  • the first network device sends a first request message to the second network device by using the foregoing unit, to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cell joining the cooperation group knows that the resource in the first resource set is used by the terminal device, when the terminal device uses the resource communication in the first resource set, it can be reduced. Less interference with devices outside the terminal device.
  • the first network device further includes a second sending unit, where the second sending unit is configured to send a second request message to the second network device, The second request message is used to request the second network device to enter a low interference mode.
  • the first network device further includes a first determining unit, where the first determining unit is configured Before the first sending unit sends the first request message to the second network device, determining that the cell of the second network device meets the condition for joining the cooperation group.
  • the first network device further includes a third sending unit, a second determining unit, and deleting a unit, where: a second determining unit, configured to determine, after the adding unit adds the cell of the second network device to the cooperation group, that the cell of the second network device meets a condition for exiting the cooperation group; And a third request message is sent to the second network device, where the third request message is used to indicate that the cell of the second network device is deleted from the collaboration group; and the deleting unit is configured to use the cell of the second network device Remove from this collaboration group.
  • the first network device further includes a third determining unit and a fourth sending unit, where a third determining unit, configured to determine that the cell of the user does not satisfy the condition for providing the service to the terminal, and the fourth sending unit is configured to send a fourth request message to the third network device, where the fourth request message is used to request the third
  • the network device acts as an anchor network device in communication with the terminal device, and the cell of the third network device belongs to the collaboration group and satisfies the condition for providing service to the terminal.
  • the first network device further includes a fifth sending unit, where the fifth sending unit is used And sending a fifth request message to the mobility management node MME, where the fifth request message is used to request to establish an S1 connection between the MME and a network device of each cell in the cooperation group for the terminal.
  • the first resource set includes a resource for uplink transmission;
  • the uplink transmission includes data Transmission of a channel and including transmission of at least one of a reference signal, a random access channel, and a control channel.
  • the first resource set includes a resource for downlink transmission, where the downlink transmission includes a data channel Transmission and including transmission of at least one of a synchronization signal, a reference signal for measurement or demodulation, and a control channel.
  • the embodiment of the present invention provides a second network device, where the second network device may include a first receiving unit and a first sending unit, where: the first receiving unit is configured to receive the first sending by the first network device a request message, the first request message is used to request to add a cell of the second network device to a collaboration group, where the collaboration group includes a cell of the first network device; and the cell in the collaboration group is used to allocate a part of resources Forming a first resource set, the resources included in the first resource set are periodic, and resources in the first resource set for co-directional transmission occupy the same frequency band, where the first resource set is used by the network device
  • the first sending unit is configured to send, to the first network device, a response message for the first request message, where the response message is used by the first network device to determine whether to join the second network device to the collaboration group.
  • the first network device sends a first request message to the second network device by using the foregoing unit, to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • the second network device further includes: a determining unit, configured to determine, according to the first request message, that the user meets the condition for joining the collaboration group; If yes, the response message is used to indicate that the first network device joins the second network device to the collaboration group; if not, the response message is used to indicate that the first network device does not join the second network device to the collaboration group.
  • the first sending unit sends the first request message to the first network device After the response message, if the first network device joins the second network device to the collaboration group, the second network device further includes a third receiving unit and a configuration unit, where: the third receiving unit is configured to receive the first a fourth request message sent by the network device, the fourth request message is used to request the second network device as an anchor network device that communicates with the terminal device; the configuration unit is configured to configure itself according to the fourth request message For this anchor device.
  • the first resource set includes a time-frequency resource for uplink transmission;
  • the transmission of the data channel is included and includes transmission of at least one of a reference signal, a random access channel, and a control channel.
  • the first resource set includes a time-frequency resource for downlink transmission, and the downlink transmission
  • the transmission of the data channel is included and includes transmission of at least one of a synchronization signal, a reference signal for measurement or demodulation, and a control channel.
  • an embodiment of the present invention provides a communication method, where the method includes: a central unit CU sending a first message to a plurality of data units DU, where the first message includes a timestamp and a second message, so that the multiple DUs are in the The time indicated by the timestamp sends the second message to the terminal with the same resource.
  • the central unit CU sends a plurality of DUs to send a first message, where the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes a modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, and a control channel element aggregation level. At least one of an indication, a control channel element, and frequency domain location information of the resource.
  • the second message includes downlink transmission block data, an uplink scheduling indication, a downlink scheduling indication, System elimination At least one of a message and a paging message.
  • the method further includes: receiving, by the CU, the multiple third messages sent by the multiple DUs,
  • the third message is a message sent by the terminal to the multiple DUs, and the third message received by the multiple DUs is the same.
  • the CU is configured to perform MAC CE generation, reception, multiplexing, and demultiplexing of the MAC layer. And at least one of a scheduling function, the plurality of DUs having at least one of an uplink HARQ and a downlink bundling transmission function of a MAC layer.
  • an embodiment of the present invention provides a communication method, where the method includes: first, a data unit DU receives a first message sent by a central unit CU, where the first message includes a timestamp and a second message, and the first message is The CU sends the DU and other DUs, so that the DU and the other DUs send the second message to the terminal device with the same resource at the time indicated by the timestamp; then, the DU uses the same resource with the other DUs. The terminal device sends the second message.
  • the central unit CU sends a plurality of DUs to send a first message, where the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes a modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, and a control channel element aggregation level. At least one of an indication, a control channel element, and frequency domain location information of the resource.
  • the second message includes downlink transmission block data, an uplink scheduling indication, a downlink scheduling indication, At least one of a system message and a page message.
  • the CU is configured to perform MAC CE generation, reception, multiplexing, and demultiplexing of the MAC layer. And at least one of a scheduling function, the plurality of DUs having at least one of an uplink HARQ and a downlink bundling transmission function of a MAC layer.
  • the embodiment of the present invention provides a central unit CU, where the central unit includes a sending unit, where the sending unit is configured to send a first message to the plurality of data units DU, where the first message includes a timestamp and a second message.
  • the plurality of DUs send the second message to the terminal with the same resource at the time indicated by the timestamp.
  • the central unit CU sends a first message to the plurality of DUs, and the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes a modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, and a control channel element aggregation level. At least one of an indication, a control channel element, and frequency domain location information of the resource.
  • the second message includes downlink transmission block data, an uplink scheduling indication, a downlink scheduling indication, At least one of a system message and a page message.
  • the central unit CU further includes a receiving unit, where the receiving unit is configured to receive the multiple
  • the third message sent by the DU is the message sent by the terminal to the multiple DUs, and the third message received by the multiple DUs is the same.
  • the CU is configured to perform MAC CE generation, reception, multiplexing, and demultiplexing of the MAC layer. And at least one of a scheduling function, the plurality of DUs having at least one of an uplink HARQ and a downlink bundling transmission function of a MAC layer.
  • an embodiment of the present invention provides a data unit, where the data unit includes a receiving unit and a sending unit, where: the receiving unit is configured to receive a first message sent by the central unit CU, where the first message includes a timestamp and a second And the first message is sent by the CU to the DU and other DUs, so that the DU and the other DU send the second message to the terminal device with the same resource at the time indicated by the timestamp; the sending unit is configured to The other DU sends the second message to the terminal device using the same resource.
  • the central unit CU sends a first message by using a plurality of DUs, and the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes a modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, and a control channel element aggregation level. At least one of an indication, a control channel element, and frequency domain location information of the resource.
  • the second message includes downlink transmission block data, an uplink scheduling indication, a downlink scheduling indication, At least one of a system message and a page message.
  • the CU is configured to perform MAC CE generation, reception, multiplexing, and demultiplexing of the MAC layer. And at least one of a scheduling function, the plurality of DUs having at least one of an uplink HARQ and a downlink bundling transmission function of a MAC layer.
  • an embodiment of the present invention provides a central unit CU, which includes a processor, a memory, and a transceiver.
  • the memory is configured to store an instruction
  • the processor is configured to invoke a program in the memory to perform the following operations: Sending, by the transceiver, a first message to the plurality of data units DU, the first message including a timestamp and a second message, so that the plurality of DUs send the second message to the terminal with the same resource at the time indicated by the timestamp.
  • the first message further includes a modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, and a control channel element. At least one of an aggregation level indication, a control channel element, and frequency domain location information of the resource.
  • the second message includes downlink transport block data, an uplink scheduling indicator, and a downlink Scheduling instructions, At least one of a system message and a page message.
  • the processor is further configured to receive the multiple DUs by using the transceiver Sending a plurality of third messages, where the third message is a message sent by the terminal to the multiple DUs, and the third message received by the multiple DUs is the same.
  • an embodiment of the present invention provides a data unit, where the data unit DU includes a processor, a memory, and a transceiver, where the memory is used to store an instruction, and the processor is configured to invoke a program in the memory to perform the following operations: Receiving, by the transceiver, a first message sent by the central unit CU, the first message includes a timestamp and a second message, and the first message is sent by the CU to the DU and other DUs, so that the DU and the other DU are The time indicated by the timestamp sends the second message to the terminal device with the same resource; and then the second message is sent to the terminal device by using the same resource with the other DU by the transceiver.
  • the central unit CU sends a first message to the plurality of DUs, and the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes a modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, and a control channel element. At least one of an aggregation level indication, a control channel element, and frequency domain location information of the resource.
  • the second message includes downlink transmission block data, an uplink scheduling indication, and a downlink At least one of a scheduling indication, a system message, and a paging message.
  • the CU is configured to perform MAC CE generation, reception, multiplexing, and At least one of a demultiplexing and scheduling function, the plurality of DUs having at least one of an uplink HARQ and a downlink bundling transmission function of a MAC layer.
  • the embodiment of the present invention provides a computer readable storage medium, where the computer readable storage medium stores instructions, when the instruction is run on the first network device, the first aspect or the first aspect
  • the method described in any of the possible implementations is implemented; or the method described in the second aspect or any of the possible implementations of the second aspect is implemented when the instruction is run on the second network device; or
  • the method described in the seventh aspect or any of the possible implementations of the seventh aspect described above is implemented when the instruction is run on the central unit CU; or the eighth aspect is when the instruction is run on the data unit DU Or the method described in any of the possible implementations of the eighth aspect can be implemented.
  • the embodiment of the present invention provides a computer program product, when the computer program product is run on a first network device, the first aspect or the method described in any one of the foregoing possible implementation manners of the foregoing Got To implement; or when the computer program product is run on a second network device, the method described in the second aspect or any of the possible implementations of the second aspect is implemented; when the computer program product is on the central unit CU In operation, the method described in the seventh aspect above or any of the possible implementations of the seventh aspect described above is implemented; or when the computer program product is run on the data unit DU, the eighth aspect or the eighth aspect The method described in one possible implementation is implemented.
  • an embodiment of the present invention provides a chip system including at least one processor, a memory, and an interface circuit, the memory, the transceiver, and the at least one processor being interconnected by a line, the at least one memory Storing instructions; when the instructions are executed by the processor, the first aspect, or any of the possible implementations of the first aspect, or the second aspect, or any possible implementation of the second aspect, or The above seventh aspect, or any of the possible implementation manners of the foregoing seventh aspect, or the foregoing eighth aspect, or the method described in any of the possible implementations of the eighth aspect is implemented.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, if the second network device can join the collaboration group, The first network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • FIG. 1 is a schematic diagram of a scenario of a UAV communication in the prior art
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a composition scenario of a second cell according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a protocol stack according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a multi-carrier scenario according to an embodiment of the present invention.
  • FIG. 6B is a schematic diagram of a single carrier scenario according to an embodiment of the present disclosure.
  • FIG. 7A is a schematic diagram of resource distribution in a first resource set according to an embodiment of the present invention.
  • FIG. 7B is a schematic diagram of resource distribution in a first resource set according to another embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart of establishing an S1 connection according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart of deleting an S1 connection according to an embodiment of the present invention.
  • FIG. 10 is a schematic flowchart diagram of still another communication method according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a transport block according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a first message according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of still another first message according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a first network device according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a second network device according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a central unit according to an embodiment of the present invention.
  • FIG. 17 is a schematic structural diagram of a data unit according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic structural diagram of still another first network device according to an embodiment of the present disclosure.
  • FIG. 19 is a schematic structural diagram of still another second network device according to an embodiment of the present disclosure.
  • FIG. 20 is a schematic structural diagram of still another central unit according to an embodiment of the present invention.
  • FIG. 21 is a schematic structural diagram of still another data unit according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • the communication system includes at least a terminal device 201, a first network device 202, and a second network device 203.
  • the device in the communication system 20 can communicate by using a wireless communication technology, for example, the second generation mobile communication technology (The 2nd-Generation, 2G), the third generation mobile communication technology (The 3rd-Generation, 3G), long term evolution (LTE), 4th Generation mobile communication (4G), 5th-generation mobile communication (5G), or wireless WIreless-Fidelity (WI-FI) technology, or Bluetooth technology, or zigbee technology, or other existing communication technologies, or communication technologies that are subsequently researched, and the like.
  • a wireless communication technology for example, the second generation mobile communication technology (The 2nd-Generation, 2G), the third generation mobile communication technology (The 3rd-Generation, 3G), long term evolution (LTE), 4th Generation mobile communication (4G), 5th-generation mobile communication (5
  • the terminal device 201 may be a handheld device (for example, a mobile phone, a tablet computer, a palmtop computer, etc.) having wireless communication functions, an in-vehicle device (for example, a car, a bicycle, an electric vehicle, an airplane, a ship, a train, a high-speed rail, etc.), Wearable devices (such as smart watches, smart bracelets, pedometers, etc.), smart home devices (eg, refrigerators, televisions, air conditioners, electricity meters, etc.), flight equipment (eg, drones, airplanes), intelligent robots, workshop equipment Other processing devices capable of connecting to a wireless modem, as well as various forms of user equipment, mobile stations (MS), terminals, terminal equipment, and the like.
  • the first network device 202 and the second network device 203 may be devices on the network side, for example, a base station in 5G, a base station in 4G, or any other device that can implement a wireless network access function, and the like.
  • FIG. 3 is a schematic flowchart of a communication method according to an embodiment of the present invention. The process may be implemented based on the communication system shown in FIG. 2, including but not limited to the following steps.
  • Step S301 The first network device sends a first request message to the second network device.
  • the first request message is used to request to add a cell of the second network device to a collaboration group.
  • each cell in the collaboration group may be referred to as a first cell
  • the collaboration group includes At least one first cell
  • the cooperation group includes a cell of the first network device (which may be referred to as a first cell); and a cell in the cooperation group is used to allocate a part of resources to form a first resource set.
  • the first set of resources is used by the first network device and the second network device to communicate with the terminal device.
  • the resources in the first resource set are composed of a part of resources in one cell or are composed of resources in multiple cells, that is, resources in the first resource set are composed of resources in at least one cell, and subsequently Each of the at least one cell may be referred to as a first cell.
  • the multiple first cells may all provide all of their own resources to form the first resource set, and may also provide Part of its own resources to form the first set of resources.
  • the resources in the first resource set may include only the uplink transmission resources, or only the downlink transmission resources, and may include both the uplink transmission resources and the downlink transmission resources.
  • the resource in the first resource set is a periodic resource
  • the resource in the first resource set is a static or semi-static resource, and the resource in the first resource set is used. Communication can reduce signaling interactions, thereby reducing latency and saving communication resources.
  • the first resource set serves only one terminal device or one terminal device group, and the first terminal device group is composed of multiple terminal devices, and at different transmission moments, the first Resources used for co-directional transmission in a resource set occupy the same frequency domain location on the same carrier.
  • the first resource set may include multiple uplink carriers and/or downlink carriers.
  • the plurality of terminal devices in the first terminal device group are all devices that meet the foregoing preset conditions, for example, the heights of the plurality of terminal devices meet the preset condition or the multiple terminal devices. Both are in a preset flight state.
  • the frequency domain resource in the first resource set may be a part of resources in the system bandwidth, for example, a resource block (RB) range, a resource element (RE) range, and the like.
  • the first resource set may include resources of at least one dimension in the time domain, the code domain, and the beam domain, and may also include resources of other dimensions.
  • the unit of the time domain resource may be an existing frame, a subframe, a symbol, a slot, a mini-slot, a symbol group, and the like. It can also be described as another type of scheduling time unit that is subsequently proposed. The following can be described by taking the unit of the time domain as a sub-frame.
  • the first resource set may be negotiated by the first network device with other network devices (steps S301-S305 in the embodiment of the present invention may be a process of negotiating the first resource set), and negotiated. The process can be initiated by the first network device.
  • the first resource set may constitute a second cell, and the second cell also has its own cell identifier, and the first resource set is divided by the at least one first cell.
  • the signal coverage of the second cell is a union of the signal coverage of the at least one first cell, such that when the terminal device is still in the at least one first cell range when moving, The terminal device does not need to perform cell handover.
  • the range of the second cell, or the first cell list in the first resource set may be dynamically changed with the terminal mobile.
  • the range of the second cell, or the first cell list in the first resource set is fixed and does not change with the terminal location. In this case, multiple second cells may exist in the cellular network.
  • Figure 4 illustrates two second cells, each of which represents a first cell
  • the plurality of second cells may constitute a single frequency network, and each of the plurality of second cells
  • the frequency domain resources are the same, and the time-frequency resources used by the second cells may be identical, or the specific time domain resource locations may be different.
  • the carriers of the first cells of the same second cell are the same. If the two first cells are used to form different second cells, the carriers of the two first cells are different.
  • the first resource set does not need to form a second cell, so that the terminal device may switch between the at least one first cell when moving.
  • the terminal device has an S1 link when communicating in the cellular network, and may be an S1 link existing between the core network and a central unit (CU) (which may be the first network device).
  • the S1 link between the core network and the anchor base station can also be described, and the CU is taken as an example for description.
  • the transmission process of the downlink data is: after receiving the data sent by the core network, the CU distributes the data to at least one data unit (DU) (each DU may be a network of a first cell in the at least one first cell)
  • the device may be a base station to which the first cell belongs, and may be referred to as a node base station.
  • the following description uses the DU as an example.
  • Each of the at least one DU then transmits the received data to the terminal device.
  • the transmission process of the uplink data is: the terminal device causes the resources in the first resource set to send uplink data, and the data is received by the at least one DU, and the at least one DU sends the received data to the CU, where the CU Receiving the data sent by the at least one DU and transmitting the received data to the core network. If it is the architecture of the anchor base station and the node base station, there is no need to design a protocol stack separation mode. If it is a CU-DU architecture, the protocol stack needs to be separated between CU-DUs. The specific protocol stack settings are shown in Figure 5. The protocol stacks of CU and DU are separated from the Media Access Control (MAC) layer.
  • MAC Media Access Control
  • the part of the CU may be referred to as a High MAC (also referred to as a high MAC, and functions include, but are not limited to, MAC control element (MAC CE) generation and reception, multiplexing and demultiplexing, at least one of scheduling functions)
  • the portion of the MAC layer in the DU may be referred to as a Low MAC (also referred to as a low MAC, and the functions include, but are not limited to, at least one of a hybrid automatic repeat request (HARQ) and a downlink binding bundling transmission).
  • HARQ hybrid automatic repeat request
  • the at least one DU needs to send the same data to the terminal device by using the same frequency domain resource at the same time.
  • the at least one DU needs to simultaneously send the resource block TB1 to the terminal device in the SFN2, the RB 10-15 of the subframe 3.
  • TB1 is first generated by the High MAC and then transmitted to the low MAC by the low MAC.
  • a specific transmission time needs to be indicated, so that the low MAC of the at least one DU transmits the TB1 at the transmission time.
  • the information indicating the sending time may be a specific frame number and a subframe number, or may be an index value indicating a time (for example, a period of 10 seconds, a total of 10000 milliseconds (ms), and an index of 0 to 9999 may be set. The value is sequentially labeled from 1 ms to 10000 ms), and may be other information indicating the location of the time domain.
  • the time domain includes but is not limited to the following possibilities:
  • the time domain location included in the first resource set may be represented by using at least two of a start position, a length, a period, an offset, and an end position of the time domain, for example, in units of subframes and according to the indication
  • the period and the offset manner are used to indicate the time domain in the first resource set. If the period is T and the offset value is offset, and the total number of subframes in one frame is M, the subframe included in the first resource set
  • the frame number is introduced in the formula, so the frame number between the network device and the other network device is required to be the same, and the cycle of more than one frame length can also be used in this manner.
  • Manner 3 The time domain location included in the first resource set is represented according to the transmission time unit pattern, and the fixed subframe (belonging to a scheduling time unit) pattern is directly determined, that is, the specific first used for the first resource set is directly specified.
  • the frame number and the subframe number for example, specify that subframe 1 and subframe 2 in the singular frame are subframes of the first resource set. It is also possible to specify only the subframe number, that is, the corresponding subframe in each frame belongs to the first resource set.
  • the parameter used to indicate the downlink resource may be the same as or different from the parameter used to indicate the uplink resource.
  • the uplink resource includes N carriers (N is a positive integer greater than 1), and the time position of the uplink resource is in units of symbol groups.
  • Each resource in carrier 1 occupies 1 symbol in the time domain, each symbol interval is 6 symbols, and 4 resource blocks RB are occupied in the frequency domain; each symbol in the carrier 2 occupies 2 symbols in each time domain, and each symbol The group interval is 5 symbols, and the frequency domain occupies 3 RBs; the carrier N contains 3 time domain symbols for each resource, and each symbol group is separated by 4 Symbols occupy 4 RBs in the frequency domain.
  • the downlink resource includes M carriers (M is a positive integer greater than 1), and the time domain is in units of a single subframe length.
  • the carrier 1 period is 2 subframes
  • the offset value is 1, the frequency domain occupies 2 RBs
  • the carrier 2 period is 4 subframes
  • the offset value is 1
  • the frequency domain occupies 3 RBs
  • the carrier M period is 2 subframes.
  • the offset value is 1, and the frequency domain occupies 3 RBs, so one virtual communication area subframe appears every two subframes.
  • the first resource set includes one carrier, as shown in FIG. 6B
  • the time positions of the uplink resources are in units of symbol groups, and each resource includes three time domain symbols, and each symbol group is separated by 4 symbols.
  • the downlink resource is in a single subframe length
  • the period is 2 subframes
  • the offset value is 1, so one virtual communication area subframe appears every two subframes.
  • the downlink resource in the first resource set does not occupy all the symbols in the subframe, but only part of the symbol, such as occupying the last 11 symbols in the subframe, and the first three symbols are still used for the physical downlink control channel (physical downlink) Control channel, PDCCH) (taking 14 symbols in a sub-frame as an example).
  • PDCCH physical downlink control channel
  • a plurality of channels may exist in the first resource set.
  • the first resource set constitutes a second cell
  • the first resource set needs to be divided into more channels to support the second.
  • the normal operation of the community For ease of understanding, the following examples illustrate several possible channel division schemes:
  • the first resource set includes time-frequency resources for downlink transmission and time-frequency resources for uplink transmission, and time-frequency resources for downlink transmission and time-frequency resources for uplink transmission can be used for data. Channel transmission.
  • the first resource set includes time-frequency resources for downlink transmission and time-frequency resources for uplink transmission, and time-frequency resources for downlink transmission and time-frequency resources for uplink transmission can be used for data.
  • Channel transmission includes transmission of at least one of a synchronization signal, a reference signal for measurement or demodulation, and a control channel, the uplink transmission including transmission of at least one of a reference signal, a random access channel, and a control channel.
  • the type of the channel included in the first resource set may be similar to the channel division mode in long term evolution (LTE), and is a compressed version compared to LTE (because the time-frequency resources available in LTE)
  • the resource range is much larger than the resource range of the first resource set).
  • LTE long term evolution
  • the time domain of the time-frequency resource used for downlink transmission in the first resource set includes the last 11 symbols in one subframe (the index of the 11 symbols ranges from 3 to 13)
  • the frequency domain includes 6 RBs, so that the control channel and the synchronization channel respectively occupy a single symbol, the data channel occupies other symbols, and the demodulation reference signal for channel estimation is distributed in the data channel.
  • the control channel may carry scheduling indication information for the terminal device.
  • the control channel may occupy one RB (optional, It is also possible to adopt a frequency hopping design, that is, the frequency domain positions occupied by the two time slots are different); the demodulation reference signal occupies two symbols, respectively symbol 3 and symbol 10; the remaining positions are occupied by the data channel, and the terminal device can also An acknowledgement (ACK)/non-acknowledgement (NACK) of the downlink data is fed back in the data channel.
  • ACK acknowledgement
  • NACK non-acknowledgement
  • Step S302 The second network device receives the first request message sent by the first network device.
  • the second network device may determine whether to join the collaboration group according to some information.
  • the first request message may include the first resource set information, and the second network device may determine whether the cell is in its own cell.
  • the terminal device uses the resource in the first resource set, and if the terminal device in the cell of the second network device uses the resource in the first resource set, the second network device determines not to join the collaboration group, if If no terminal device in the second network device owns the resource in the first resource set, the second network device determines to join the cooperation group. For example, the second network device determines whether the number of resources currently idle in the cell is greater than a preset threshold. If the second network device is greater than, the second network device determines to join the collaboration group.
  • the second network device determines not to join.
  • the collaboration group Or the resource group can be added to the collaboration group when the resource occupancy rate is lower than the preset threshold.
  • the second network device may further determine whether to join the collaboration group by using other information, and the information of the other information is not limited herein, and only needs to be preset.
  • Step S303 The second network device sends a response message for the first request message to the first network device.
  • the second network device sends a response message to the first network device to indicate to the first network device that the second network device allows the cell to join the collaboration group, if it is determined not to join
  • the collaboration group sends the response message to the first network device to indicate to the first network device that the second network device does not allow the cell to join the collaboration group, or does not send to the first network device And responding to the message to indicate to the first network device that the second network device does not allow the cell to join the collaboration group.
  • Step S304 The first network device receives a response message sent by the second network device for the first request message.
  • Step S305 The first network device joins the cell of the second network device to the collaboration group.
  • the first network device joins the cell of the second network device to the collaboration group.
  • the first network device may send the identifier of the collaboration group or the identifier of the second cell to the second network device, and access the collaboration group.
  • Radio network tempory identity (RNTI) of the terminal device channel division mode information in the first resource set, packet data convergence protocol (PDCP), and wireless chain of the first resource set Radio link control (RLC), media access control (MAC), physical layer (PHY) configuration, and so on.
  • RNTI Radio network tempory identity
  • PDCP packet data convergence protocol
  • RLC Radio link control
  • MAC media access control
  • PHY physical layer
  • Uplink transmission after the configuration of the protocol stack, the first network device or a central unit (CU) indicates the start time of the second network device, and the newly added second network device starts from the start time.
  • the uplink data reception can be started, and the cyclic cedundancy check (CRC) can be directly submitted upward after successful verification.
  • Downlink transmission The specified PDCP service data unit (SDU) is transmitted at a specified time. Starting from the new transmission of each HARQ process, the transition is completed after all HARQ processes are covered, thereby starting the formal data transmission.
  • SDU PDCP service data unit
  • the first network device does not join the cell of the second network device to the collaboration group.
  • the first network device may further send a second request message to the second network device, where the second request message is used to request the second network device to enter a low interference mode.
  • the second network device enters the low interference mode after receiving the second request message, and the second network device reduces the first resource set in the cell.
  • the downlink transmission power is sent, or the terminal is sent an indication to enable the terminal device to reduce the transmission power on the uplink resource of the first resource set.
  • the determining message may be sent to the first network device to indicate that the second network device enters the low interference mode.
  • the first network device may send a reject message to indicate that the second network device does not enter the low interference mode.
  • the collaboration group may also need to be adjusted when the terminal device moves, and may also be referred to as an adjustment of the second cell range or an adjustment of the corresponding cell list of the first resource set.
  • the following two possible adjustment methods are exemplified:
  • Method 1 The cell is added to the collaboration group or the cell is deleted.
  • the specific operation procedure when the cell is added may refer to the process in which the first network device adds the cell of the second network device to the collaboration group.
  • the cell deletion is also performed by deleting the cell of the second network device as an example.
  • the manner of deleting other cells is the same as the method of deleting the cell of the second network device.
  • the deletion process includes:
  • the first network device determines that a cell of the second network device meets a condition for exiting the collaboration group.
  • the conditions for exiting the collaboration group are predefined.
  • the specific content of the condition is not limited herein. However, in order to facilitate understanding, the following examples are exemplified, for example, when a specified terminal device is not in the second When the signal range of the cell of the network device is within, the cell of the second network device satisfies the condition for exiting the cooperation group.
  • a cell signal sent by the second network device received by a specified terminal device is weaker than a preset signal threshold, for example, a reference signal receiving power (RSRP)/reference
  • RSRP reference signal receiving power
  • RSS reference rignal receiving quality
  • SINR signal to interference plus noise ratio
  • the cell of the second network device satisfies the cooperation. Group of conditions.
  • the second network device sends a message to the network device to request to exit the collaboration group, the second network device satisfies the condition for exiting the collaboration group.
  • the first network device sends a third request message to the second network device, where the third request message is used to request (or “notify”) the cell of the second network device from the collaboration. Deleted in the group.
  • the first network device deletes a cell of the second network device from the collaboration group.
  • the first network device has information about each cell included in the collaboration group, for example, an identifier of each cell, and the first network device may delete the information of the cell of the second network device from the coordinated group cell list. , thereby deleting the cell of the second network device from the collaboration group.
  • the foregoing step 12 may or may not be.
  • the step 12 indicates that the first network device deletes the cell of the second network device from the collaboration group but does not notify the second network device.
  • the second network device may send a response message to the first network device according to the third request message, if the response indicates that the cell of the second network device can be deleted from the collaboration group, The first network device performs step 13, otherwise step 13 is not performed.
  • Manner 2 An anchor network device in the collaboration group is replaced by another network device by the first network device.
  • the anchor network device is responsible for communicating with the core network through the S1 link, performing maintenance of the cooperative group, and managing or scheduling the first resource set, and generating configuration information and instructing other node network devices to send the same time-frequency resource.
  • the terminal device is provided such that the terminal device communicates with the network device using the resources in the first set of resources.
  • the replacement of the anchor network device in the collaboration group by the first network device into another network device includes the following steps:
  • the first network device determines that its own cell does not satisfy a condition for providing a service for the terminal device.
  • the first resource set is originally provided for use by some designated terminal devices. If the first network device does not satisfy the condition for providing the specified terminal device, then the re-generation anchor network device needs to be replaced to make the new device.
  • the anchor network device provides services for the designated terminal device.
  • the conditions for not providing the service for the specified terminal device are specifically limited herein, and only need to be set in advance. Several optional cases are exemplified below to facilitate understanding. For example, when the signal range of the cell of the first network device cannot cover the designated terminal device, the cell of the first network device does not satisfy the condition for providing the specified terminal device. For another example, the designated terminal device receives a cell in the collaboration group. When the signal of the first network device is stronger than the signal of the cell of the first network device received by the terminal device, the cell of the first network device does not satisfy the condition for providing service to the designated terminal device.
  • the first network device sends a fourth request message to the third network device, where the fourth request message is used to request the third network device to be a terminal device anchor network device, where the third network device
  • the cell may belong to the collaboration group and meet the condition for providing the terminal device, or the cell of the third network device may not be in the cooperation group. In this case, the cell addition action needs to be performed before the anchor point base station is changed.
  • the third network device receives the fourth request message sent by the first network device. After receiving the fourth request message, the third network device can become an anchor network device, thereby replacing the first network device to maintain the collaboration group.
  • the anchor network device when the anchor network device is changed from the first network device to the third network device, to ensure data transmission stability, the following process may be performed, and the following process may be used for downlink data transmission:
  • the first network device sends a PDCP SDU, an RLC SDU segment (downstream only) to the third network device, and directly indicates the handover time point. From the switching time point, data is transmitted by the third network device to the terminal device.
  • the third network device relies on asynchronous adaptive retransmission, and the first few transmissions after the absolute switching point can only be used for new transmission.
  • the uplink PDCP status report may be sent to the terminal device or the terminal device may be required to return the downlink PDCP status report to re-transmit the PDCP PDU.
  • This method also requires the terminal device to clear the HARQ buffer and the RLC buffer.
  • the RLC buffer status information and the buffer data are exchanged between the first network device and the second network device, that is, the RLCbuffer is not cleared, and only the HARQ buffer is cleared.
  • between different network devices may communicate through the X2 port, or may pass through the core.
  • Network communication between different network devices (for example, between the first network device and the second network device, between the first network device and the third network device) may communicate through the X2 port, or may pass through the core.
  • the network device may be considered as
  • the ideal backhual link between the terminal device and the network device is similar to COMP, that is, the joint transmission and reception of multiple antennas, and only needs to maintain an S1 between the anchor network device and the core network device.
  • the connection is complete (including the control plane S1-MME connection and the user plane S1-U connection).
  • the S1 connection between the MME and each network device of the collaboration group may be established, so that the Each network device establishes an S1 link with the core network.
  • the anchor network device sends the information of each cell in the cooperation group and the identifier of the terminal device to the MME, and the MME establishes, between the network devices corresponding to the respective cells, according to the identifiers of the respective cells and the identifier of the terminal device.
  • S1 connection for the terminal device The following is a brief introduction to the process of establishing an S1 connection and deleting an S1 connection.
  • FIG. 8 is a schematic flowchart of establishing an S1 connection, and the process includes but is not limited to the following steps:
  • the first network device sends, to the MME, an identifier of each cell that is added to the collaboration group and an identifier of a terminal device.
  • the MME receives the identifier of the respective cell and the identifier of the certain terminal device, and then performs S1-MME link establishment, the context of the certain terminal (context transmission), or may not establish an S1-MME link. Only the following S1-U links are established;
  • the MME sends an S1-U link establishment indication to the SGW.
  • the SGW sends an S1-U setup request to a network device (for example, a base station) to which the cell belongs.
  • a network device for example, a base station
  • the network device to which the cell belongs sends an S1-U setup complete message to the SGW.
  • the MME sends a notification message to the first network device, and the MME has been notified that an S-link between the certain terminal device and the respective cell has been established between the MME and the respective cells.
  • FIG. 9 is a schematic flowchart of deleting an S1 connection, and the process includes but is not limited to the following steps:
  • the MME receives the identifier of each cell and the identifier of the certain terminal device, and then performs S1-MME link deletion, and the context of the terminal is deleted.
  • the MME sends an S1 link deletion indication to the SGW.
  • the SGW sends an S1-U deletion request to a network device (for example, a base station) to which the cell belongs.
  • a network device for example, a base station
  • the MME sends a notification message to the first network device, and the MME has been notified that the S1 link between the eNB and the respective cell is deleted.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, if the second network device can join the collaboration group. Then the first network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • FIG. 10 is a schematic flowchart diagram of a communication method according to an embodiment of the present invention, where the method includes but is not limited to the following steps:
  • the first message includes a timestamp and a second message, so that the multiple data units (DUs) send the second message to the terminal with the same resource at the time indicated by the timestamp, where
  • the first message may further include other scheduling information, for example, modulation and coding scheme information, channel state information request indication, frequency hopping indication, downlink control information format, control channel element aggregation level indication, control channel element location information, Frequency domain location information for resources, and more.
  • the second message includes at least one of downlink transport block data, an uplink scheduling indication, a downlink scheduling indication, a system message, and a paging message.
  • the multiple DUs may be network devices of multiple cells, and the multiple cells may each allocate a part of resources to form a resource set, which may be referred to as a first resource set.
  • the plurality of cells constitute a virtual cell
  • the resource of the virtual cell is a resource of the first resource set.
  • cell 1, cell 2, cell 3, cell 4, cell 5, cell 6, cell 7, and cell 8 constitute one virtual cell (also referred to as a second cell)
  • cell 7, cell 8, cell 9, Cell 10, cell 11, cell 12, cell 13 and cell 14 constitute another virtual cell (also referred to as a second cell).
  • the PDCP has security functions including data encryption and integrity. If the PDCP layer is placed in the DU, each DU separately performs the data encryption function, which is not conducive to the unified management of the security key. Therefore, the PDCP layer protocol stack is also deployed in the CU.
  • the RLC layer has the functions of packet fragmentation, concatenation, and automatic repeat reQuest (ARQ). If the RLC layer is placed in the DU and the uplink data is fragmented, multiple DUs may only receive partial points. For the ARQ function, multiple DUs respectively instruct the terminal to perform ARQ retransmission, and it is difficult to coordinate resources when multiple DUs belong to the same cell. Therefore, the RLC layer protocol stack is also deployed in the CU.
  • ARQ automatic repeat reQuest
  • Each device (including various network devices and various terminal devices) has a corresponding MAC entity.
  • Functions include MAC CE generation, reception, multiplexing, demultiplexing, scheduling functions, HARQ, and so on.
  • the DUs (or network devices) of the cells constituting the virtual cell should perform unified resource scheduling, so the scheduling function should be deployed in the CU; the basis of the scheduling is data, so each bearer Data multiplexing and demultiplexing should also be deployed in the CU, and the MAC CE needs to be deployed in the CU because it needs to form a TB with the data.
  • the HARQ function needs to follow strict timing requirements.
  • each DU may return the CRC to the CU and feed back the ACK to the terminal device if the CRC check succeeds.
  • Step S1002 The plurality of data units DU receive the first message.
  • Step S1003 The plurality of DUs send the second message to the terminal device at the time indicated by the timestamp.
  • the frequency domain resources used by the multiple DUs to send the second message are the same, and the frequency domain resources used by the multiple DUs to send the second message may be predefined in the protocol, or may be carried by the first message.
  • the plurality of DUs need to simultaneously transmit the data packet TB1 (belonging to the second message) to the terminal device in the SFN2, the data block RB10-15 of the subframe 3.
  • TB1 is first generated by the High MAC and then transmitted to the lower MAC for transmission. While transmitting TB1 to the low MAC, it is also necessary to indicate a specific transmission time (ie, a time stamp).
  • the first message may be pre-configured in a static or semi-static manner, and may also be dynamically scheduled.
  • the structure of the first message may be as shown in FIG. 12 Show.
  • a downlink control channel is also required (for example, to support multiple end)
  • the resources used by the end device are scheduled.
  • the first message may adopt the data structure shown in FIG.
  • a control channel scheduling information is added to indicate the at least one of a specific CCE location, an aggregation level, and a modulation mode of the control channel.
  • the multiple DUs may further receive a third message sent by the terminal device, where the third message received by each DU of the multiple DUs is the same. Then, the plurality of DUs send the received third message to the CU.
  • the central unit CU sends a plurality of DUs to send a first message, where the first message carries a timestamp, so that the multiple DUs can send the terminal to the terminal device at the same time according to the timestamp.
  • the same second message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • FIG. 14 is a schematic structural diagram of a first network device 140 according to an embodiment of the present invention.
  • the first network device 140 may include a first sending unit 1401, a first receiving unit 1402, and an adding unit 1403.
  • the description of each unit is as follows.
  • the first sending unit 1401 is configured to send a first request message to the second network device, where the first request message is used to request to join the cell of the second network device to the collaboration group, where the cooperation group includes the cell of the first network device;
  • the cells in the collaboration group are used to allocate a part of resources to form a first resource set, the resources included in the first resource set are periodic, and the resources used in the first resource set are used for co-directional transmission.
  • the first resource set is used for the network device to communicate with the terminal device; the first receiving unit 1402 is configured to receive a response message sent by the second network device for the first request message, and the adding unit 1403 is configured to When the response message indicates that the cell of the second network device is allowed to join the cooperation group, the cell of the second network device is added to the cooperation group.
  • the first network device sends a first request message to the second network device by using the foregoing unit, to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • the first network device further includes a first determining unit, configured to determine the first before the first sending unit sends the first request message to the second network device The cell of the second network device satisfies the condition of joining the cooperation group.
  • the first network device further includes a third sending unit, a second determining unit, and a deleting unit, wherein: the second determining unit is configured to, in the adding unit, the second network device After the cell joins the cooperation group, determining that the cell of the second network device meets the condition for exiting the cooperation group; the third sending unit is configured to send a third request message to the second network device, where the third request message is used to indicate The cell of the second network device is deleted from the collaboration group; and the deleting unit is configured to delete the cell of the second network device from the collaboration group.
  • the first network device further includes a third determining unit and a fourth sending unit, where: the third determining unit is configured to determine that the cell of the user does not satisfy the condition for providing the terminal for the service; a fourth sending unit, configured to send a fourth request message to the third network device, where the fourth request message is used to request the third network device as the end An anchor network device that communicates with the end device, the cell of the third network device belongs to the collaboration group and satisfies the condition for providing service for the terminal.
  • the first network device further includes a fifth sending unit, configured to send a fifth request message to the mobility management node MME, where the fifth request message is used to request to establish the The S1 connection between the MME and the network device of each cell in the collaboration group for the terminal.
  • a fifth sending unit configured to send a fifth request message to the mobility management node MME, where the fifth request message is used to request to establish the The S1 connection between the MME and the network device of each cell in the collaboration group for the terminal.
  • the first resource set includes a resource for uplink transmission; the uplink transmission includes transmission of a data channel, and includes transmission of at least one of a reference signal, a random access channel, and a control channel. .
  • the first resource set includes a resource for downlink transmission, where the downlink transmission includes transmission of a data channel, and includes a synchronization signal, a reference signal for measurement or demodulation, and a control channel. At least one transmission.
  • each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 3 .
  • the first network device 140 sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, if the second network device can After joining the collaboration group, the first network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • FIG. 15 is a schematic structural diagram of a second network device 150 according to an embodiment of the present invention.
  • the second network device 150 may include a first receiving unit 1501 and a first sending unit 1502, where: the first receiving The unit 1501 is configured to receive a first request message sent by the first network device, where the first request message is used to request to join a cell of the second network device to a collaboration group, where the collaboration group includes a cell of the first network device; The cells in the group are used to allocate a part of the resources to form a first resource set, the resources included in the first resource set are periodic, and the resources used for the same direction transmission in the first resource set occupy the same frequency band.
  • the first resource set is used by the network device to communicate with the terminal device.
  • the first sending unit 1502 is configured to send, to the first network device, a response message for the first request message, where the response message is used by the first network device. Determining whether to join the second network device to the collaboration group.
  • the first network device sends a first request message to the second network device by using the foregoing unit, to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • the second network device further includes a determining unit, configured to determine, according to the first request message, that the self meets the condition for joining the cooperation group; if yes, the response message is used to indicate the The first network device joins the second network device to the collaboration group; if not, the response message is used to indicate that the first network device does not join the second network device to the collaboration group.
  • the second network device further includes a second receiving unit, configured to receive a third request message sent by the first network device, where the third request message is used to indicate that the cell of the second network device is Deleted in the collaboration group.
  • the second network device further includes a third receiving unit and a configuration unit, where: the third receiving unit is configured to receive a fourth request message sent by the first network device, where the fourth request message is used to request the second
  • the network device acts as an anchor network device in communication with the terminal device; the configuration unit is configured to configure itself as the anchor device according to the fourth request message.
  • the first resource set includes time-frequency resources for uplink transmission; the uplink transmission includes transmission of a data channel, and includes at least one of a reference signal, a random access channel, and a control channel. Transmission.
  • the first resource set includes a time-frequency resource for downlink transmission, where the downlink transmission includes transmission of a data channel, and includes a synchronization signal, a reference signal and a control for measurement or demodulation. The transmission of at least one of the channels.
  • each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 3 .
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the cooperation group, if the second network device can After joining the collaboration group, the first network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • FIG. 16 is a schematic structural diagram of a central unit (CU) 160 according to an embodiment of the present invention.
  • the central unit 160 may include a sending unit 1601, where the sending unit 1601 is configured to send a plurality of data units DU.
  • a message, the first message includes a timestamp and a second message such that the plurality of DUs send the second message to the terminal with the same resource at the time indicated by the timestamp.
  • the central unit CU sends a first message to the plurality of DUs, and the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, a control channel element aggregation level indication, a control channel element, and the resource. At least one of the frequency domain location information.
  • the second message includes at least one of downlink transport block data, an uplink scheduling indication, a downlink scheduling indication, a system message, and a paging message.
  • the central unit CU further includes a receiving unit, configured to receive a plurality of third messages sent by the multiple DUs, where the third message is sent by the terminal to the multiple DUs The message and the third message received by the plurality of DUs are the same.
  • the CU has at least one of MAC CE generation, reception, multiplexing, demultiplexing, and scheduling functions of the MAC layer, where the multiple DUs have uplink HARQ and downlink bundling transmissions of the MAC layer. At least one of the features.
  • each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 10 .
  • the central unit CU sends a plurality of DUs to send a first message, the first message carrying a timestamp, so that the plurality of DUs can be directed to the terminal at the same time according to the timestamp.
  • Device sending phase The second message is the same, so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • FIG. 17 is a schematic structural diagram of a data unit (DU) 170 according to an embodiment of the present invention.
  • the data unit 170 may include a receiving unit 1701 and a sending unit 1702, where: the receiving unit 1701 is configured to receive a central unit. a first message sent by the CU, the first message includes a timestamp and a second message, and the first message is sent by the CU to the DU and other DUs, so that the DU and the other DUs are the same at the time indicated by the timestamp
  • the resource sends the second message to the terminal device; the sending unit 1702 is configured to send the second message to the terminal device by using the same resource as the other DU.
  • the central unit CU sends a first message by using a plurality of DUs, and the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, a control channel element aggregation level indication, a control channel element, and a frequency of the resource. At least one of the domain location information.
  • the second message includes at least one of downlink transport block data, an uplink scheduling indication, a downlink scheduling indication, a system message, and a paging message.
  • the CU has at least one of MAC CE generation, reception, multiplexing, demultiplexing, and scheduling functions of the MAC layer, where the multiple DUs have uplink HARQ and downlink bundling transmissions of the MAC layer. At least one of the features.
  • each unit may also correspond to the corresponding description of the method embodiment shown in FIG. 10 .
  • the central unit CU sends a plurality of DUs to send a first message, the first message carrying a timestamp, so that the plurality of DUs can be directed to the terminal at the same time according to the timestamp.
  • the device sends the same second message, so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • FIG. 18 is a first network device 180 according to an embodiment of the present invention.
  • the first network device 180 includes a processor 1801, a memory 1802, and a transceiver 1803.
  • the processor 1801, the memory 1802, and the transceiver The 1803s are connected to each other through a bus.
  • the memory 1802 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or A compact disc read-only memory (CD-ROM) is used for related instructions and data.
  • the transceiver 1903 is configured to receive and transmit data.
  • the processor 1801 may be one or more central processing units (CPUs).
  • the processor 701 is a CPU
  • the CPU may be a single core CPU or a multi-core CPU.
  • the processor 1801 in the first network device 180 is configured to read the program code stored in the memory 1802, and perform the following operations:
  • the cell of the second network device joins a collaboration group, where the collaboration group includes a cell of the first network device; the cell in the collaboration group is used to allocate a part of resources to form a first resource set, where the first resource set includes The resource is periodic, and the resource for co-directional transmission in the first resource set occupies the same frequency band, and the first resource set is used by the network device to communicate with the terminal device; and then, the device is received by the transceiver. And a response message sent by the network device to the first request message. Then, if the response message indicates that the cell of the second network device is allowed to join the cooperation group, the cell of the second network device is added to the cooperation group.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • the processor is further configured to: send, by the transceiver, a second request message to the second network device, where the second request message is used to request the second network device to enter a low interference mode.
  • the processor before the sending, by the transceiver, the first request message to the second network device, the processor is further configured to: determine that the cell of the second network device meets a condition for joining the cooperation group.
  • the method is further configured to: determine that the cell of the second network device meets a condition for exiting the collaboration group; And sending, by the second network device, a third request message, the third request message is used to indicate that the cell of the second network device is deleted from the collaboration group; and the cell of the second network device is deleted from the collaboration group .
  • the processor is further configured to: determine that the cell of the user does not satisfy the condition for providing the service to the terminal; and send, by the transceiver, a fourth request message to the third network device, where the fourth request message is sent And configured to request the third network device as an anchor network device that communicates with the terminal device, where the cell of the third network device belongs to the collaboration group and satisfies a condition for providing service for the terminal.
  • the processor is further configured to send, by using the transceiver, a fifth request message to the mobility management node MME, where the fifth request message is used to request to establish the MME and each cell in the collaboration group.
  • the first resource set includes time-frequency resources for uplink transmission; the uplink transmission includes transmission of a data channel, and includes at least one of a reference signal, a random access channel, and a control channel. Transmission.
  • the first resource set includes a time-frequency resource for downlink transmission, where the downlink transmission includes transmission of a data channel, and includes a synchronization signal, a reference signal and a control for measurement or demodulation. The transmission of at least one of the channels.
  • each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 3 .
  • the first network device 180 sends a first request message to the second network device to request the cell of the second network device to join the cooperation group, if the second network device can After joining the collaboration group, the first network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • FIG. 19 is a second network device 190 according to an embodiment of the present invention.
  • the second network device 190 includes a processor 1901, a memory 1902, and a transceiver 1903.
  • the processor 1901, the memory 1902, and the transceiver The switches 1903 are connected to each other through a bus.
  • the memory 1902 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or A compact disc read-only memory (CD-ROM) is used for related instructions and data.
  • the transceiver 1903 is configured to receive and transmit data.
  • the processor 1901 may be one or more central processing units (CPUs).
  • the processor 701 is a CPU
  • the CPU may be a single core CPU or a multi-core CPU.
  • the processor 1901 in the second network device 190 is configured to read the program code stored in the memory 1902, and perform the following operations:
  • the first request message sent by the first network device is received by the transceiver, where the first request message is used to request to join the cell of the second network device to the collaboration group, where the cooperation group includes the cell of the first network device;
  • the cells in the collaboration group are used to allocate a part of resources to form a first resource set, the resources included in the first resource set are periodic, and the resources used in the first resource set are used for co-directional transmission.
  • the same frequency band, the first resource set is used by the network device to communicate with the terminal device; and then, the transceiver sends a response message for the first request message to the first network device, where the response message is used for the first network
  • the device determines whether to join the second network device to the collaboration group.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • the processor is further configured to: determine, according to the first request message, that the self meets the condition for joining the collaboration group; if yes, the response message is used to indicate that the first network device is to use the second The network device joins the collaboration group; if not, the response message is used to indicate that the first network device does not join the second network device to the collaboration group.
  • the processor sends the response message for the first request message to the first network device by using the transceiver, if the first network device joins the second network device
  • the collaboration group is further configured to receive, by the transceiver, a third request message sent by the first network device, where the third request message is used to indicate that the cell of the second network device is deleted from the collaboration group.
  • the processor after the processor sends a response message for the first request message to the first network device by using the transceiver, if the first network device joins the second network device to the collaboration
  • the processor is further configured to receive, by the transceiver, a fourth request message sent by the first network device, where the fourth request message is used to request the second network device to be an anchor network that communicates with the terminal device.
  • the device configures itself as the anchor device according to the fourth request message.
  • the first resource set includes time-frequency resources for uplink transmission; the uplink transmission includes transmission of a data channel, and includes at least one of a reference signal, a random access channel, and a control channel. Transmission.
  • the first resource set includes a time-frequency resource for downlink transmission, and the downlink transmission
  • the transmission of the data channel is included and includes transmission of at least one of a synchronization signal, a reference signal for measurement or demodulation, and a control channel.
  • each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 3 .
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the cooperation group, if the second network device can After joining the collaboration group, the first network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • FIG. 20 is a central unit (CU) 200 according to an embodiment of the present invention.
  • the central unit 200 includes a processor 2001, a memory 2002, and a transceiver 2003.
  • the processor 2001, the memory 2002, and the transceiver 2003 is connected to each other through a bus.
  • the memory 2002 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or A compact disc read-only memory (CD-ROM) for use in related instructions and data.
  • the transceiver 2003 is for receiving and transmitting data.
  • the processor 2001 may be one or more central processing units (CPUs).
  • the processor 701 is a CPU
  • the CPU may be a single core CPU or a multi-core CPU.
  • the processor 2001 in the central unit 200 is configured to read the program code stored in the memory 2002 and perform the following operations:
  • the central unit CU sends a first message to the plurality of DUs, and the first message carries a timestamp, so that the multiple DUs can send the same second to the terminal device at the same time according to the timestamp.
  • the message so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • the first message further includes modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, a control channel element aggregation level indication, a control channel element, and a frequency of the resource. At least one of the domain location information.
  • the second message includes at least one of downlink transport block data, an uplink scheduling indication, a downlink scheduling indication, a system message, and a paging message.
  • the processor is further configured to receive, by the transceiver, a plurality of third messages sent by the multiple DUs, where the third message is a message sent by the terminal to the multiple DUs, and the The third message received by the plurality of DUs is the same.
  • the CU has at least one of MAC CE generation, reception, multiplexing, demultiplexing, and scheduling functions of the MAC layer, where the multiple DUs have uplink HARQ and downlink bundling transmissions of the MAC layer. At least one of the features.
  • each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 10 .
  • the central unit CU sends a plurality of DUs to send a first message, the first cancellation
  • the time stamp carries a time stamp, so that the plurality of DUs can send the same second message to the terminal device at the same time according to the timestamp, so that the terminal device does not receive the multiple DUs when receiving the second message.
  • FIG. 21 is a data unit (DU) 210 according to an embodiment of the present invention.
  • the data unit 210 includes a processor 2101, a memory 2102, and a transceiver 2103.
  • the processor 2101, the memory 2102, and the transceiver 2103 are connected to each other through a bus.
  • the memory 2102 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read only memory (EPROM), or A compact disc read-only memory (CD-ROM) is used for related instructions and data.
  • the transceiver 703 is configured to receive and transmit data.
  • the processor 2101 may be one or more central processing units (CPUs).
  • the processor 701 is a CPU
  • the CPU may be a single core CPU or a multi-core CPU.
  • the processor 2101 in the data unit 210 is configured to read the program code stored in the memory 2102, and perform the following operations:
  • the first message sent by the central unit CU is received by the transceiver, the first message includes a timestamp and a second message, and the first message is sent by the CU to the DU and other DUs, so that the DU and the other DU Transmitting the second message to the terminal device with the same resource at the time indicated by the timestamp; and then transmitting the second message to the terminal device by using the same resource with the other DU by the transceiver.
  • the first message further includes modulation and coding scheme information, a channel state information request indication, a frequency hopping indication, a downlink control information format, a control channel element aggregation level indication, a control channel element, and a frequency of the resource. At least one of the domain location information.
  • the second message includes at least one of downlink transport block data, an uplink scheduling indication, a downlink scheduling indication, a system message, and a paging message.
  • the CU has at least one of MAC CE generation, reception, multiplexing, demultiplexing, and scheduling functions of the MAC layer, where the multiple DUs have uplink HARQ and downlink bundling transmissions of the MAC layer. At least one of the features.
  • each operation may also correspond to the corresponding description of the method embodiment shown in FIG. 10 .
  • the central unit CU sends a plurality of DUs to send a first message, the first message carrying a timestamp, so that the plurality of DUs can be directed to the terminal at the same time according to the timestamp.
  • the device sends the same second message, so that the terminal device receives the second message without being interfered by the multiple DUs and has an enhancement effect.
  • Embodiments of the present invention provide a computer readable storage medium having instructions stored therein, when the instructions are run on a first network device, the method embodiment described in FIG. 3 is implemented; or Instruction in the first The method embodiment shown in FIG. 3 is implemented when the second network device is running; or the method embodiment shown in FIG. 10 is implemented when the instruction is run on the central unit CU; or when the instruction is on the data unit DU In operation, the method embodiment shown in Figure 10 is implemented.
  • Embodiments of the present invention provide a computer program product, when the computer program product is run on a first network device, the method embodiment shown in FIG. 3 is implemented; or when the computer program product is run on a second network device
  • the method embodiment shown in FIG. 3 is implemented; when the computer program product is run on the central unit CU, the method embodiment shown in FIG. 10 is implemented; or when the computer program product is run on the data unit DU, The method embodiment shown in Figure 10 is implemented.
  • the first network device sends a first request message to the second network device to request the cell of the second network device to join the collaboration group, and if the second network device can join the collaboration group, the first The network device joins the second network device to the collaboration group. Since the cells joining the cooperation group know that the resources in the first resource set are used by the terminal device, when the terminal device uses the resources in the first resource set to communicate, the terminal device can be reduced from the terminal device. Interference between devices.
  • the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例公开一种通信方法及相关设备，该方法包括：第一网络设备向第二网络设备发送第一请求消息，第一请求消息用于请求将第二网络设备的小区加入协作组，协作组包括第一网络设备的小区；协作组中的小区用于各分出一部分资源来组成第一资源集合，第一资源集合所包括的资源是周期性的，并且第一资源集合中的用于同向传输的资源占用相同频段，第一资源集合用于网络设备与终端设备通信；第一网络设备接收第二网络设备发送的针对第一请求消息的响应消息；若响应消息指示允许将第二网络设备的小区加入协作组，第一网络设备将第二网络设备的小区加入协作组。采用本发明实施例，能够减少该终端设备通信时的干扰。

Description

一种通信方法及相关设备 技术领域
本发明涉及通信技术领域，尤其涉及一种通信方法及相关设备。
背景技术
蜂窝通信系统在设计之初主要针对地面终端，如果蜂窝通信系统能够支持无人机将帮助无人机进行远距离飞行，这样无人机就可以充分地发挥图片采集、视频拍摄、运输等功能，从而给人们的生活带来更大便利。当无人机飞行高度超过基站后就会与更多设备(包括基站和地面终端)之间无遮挡物遮挡，因此很多设备发送的信号容易被该无人机接收到，该无人机发送的信号也容易被很多设备接收到。如图1所示，当处于高空中的无人机与提供服务的基站0通信时，由于该无人机与基站1、基站2、地面终端1和地面终端2之间没有遮挡物遮挡，因此该无人机发送的的信号可能被基站1、基站2、地面终端1和地面终端2接收到，基站1、基站2、地面终端1和地面终端2发送的信号也可能被该无人机接收到。
蜂窝通信系统中如何为无人机配置通信资源，以减少无人机与通信系统中的设备之间的通信干扰，以及降低无人机在蜂窝网络中的切换次数，是本领域的技术人员正在研究的技术问题。
发明内容
本发明实施例公开了一种通信方法及相关设备，能够建立协作组来减少终端设备通信时的干扰并能够减少切换。
第一方面，本发明实施例提供了一种通信方法，该方法包括：首先，第一网络设备向第二网络设备发送第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；然后，该第一网络设备接收该第二网络设备发送的针对该第一请求消息的响应消息；接着，若该响应消息指示允许将该第二网络设备的小区加入该协作组，该第一网络设备将该第二网络设备的小区加入该协作组。
通过执行上述步骤，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。同时，由于这种方式扩大了所述终端的服务小区范围，所以也有减少小区切换的效果。
结合第一方面，在第一方面的第一种可能的实现方式中，还包括：该第一网络设备向该第二网络设备发送第二请求消息，该第二请求消息用于请求该第二网络设备进入低干扰模式。
结合第一方面，或者第一方面的上述任一可能的实现方式，在第一方面的第二种可能的实现方式中，该第一网络设备向第二网络设备发送第一请求消息之前，还包括：该第一网络设备确定该第二网络设备的小区满足加入该协作组的条件。
结合第一方面，或者第一方面的上述任一可能的实现方式，在第一方面的第三种可能的实现方式中，该第一网络设备将该第二网络设备的小区加入该协作组之后，还包括：该第一网络设备确定该第二网络设备的小区满足退出该协作组的条件；
该第一网络设备向该第二网络设备发送第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除；该第一网络设备将该第二网络设备的小区从该协作组中删除。
结合第一方面，或者第一方面的上述任一可能的实现方式，在第一方面的第四种可能的实现方式中，该方法还包括：该第一网络设备确定自身的小区不满足为终端提供服务的条件；该第一网络设备向第三网络设备发送第四请求消息，该第四请求消息用于请求该第三网络设备作为与该终端设备通信的锚点网络设备，该第三网络设备的小区属于该协作组且满足为该终端提供服务的条件。
结合第一方面，或者第一方面的上述任一可能的实现方式，在第一方面的第五种可能的实现方式中，该方法还包括：该第一网络设备向移动管理节点MME发送第五请求消息，该第五请求消息用于请求建立该MME与该协作组中各个小区的网络设备之间的针对该终端的S1连接。
结合第一方面，或者第一方面的上述任一可能的实现方式，在第一方面的第六种可能的实现方式中，该第一资源集合包括用于上行传输的资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
结合第一方面，或者第一方面的上述任一可能的实现方式，在第一方面的第七种可能的实现方式中，该第一资源集合包括用于下行传输的资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
第二方面，本发明实施例提供一种通信方法，该方法包括：首先，第二网络设备接收第一网络设备发送的第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；然后，该第二网络设备向该第一网络设备发送针对该第一请求消息的响应消息，该响应消息用于该第一网络设备确定是否将该第二网络设备加入该协作组。
通过执行上述步骤，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。同时，由于这种方式扩大了所述终端的服务小区范围，所以也有减少小区切换的效果。
结合第二方面，在第二方面的第一种可能的实现方式中，还包括：该第二网络设备根据该第一请求消息确定自身满足加入该协作组的条件；若满足，该响应消息用于指示该第一网络设备将该第二网络设备加入该协作组；若不满足，该响应消息用于指示该第一网络设备不将该第二网络设备加入该协作组。
结合第二方面，或者第二方面的上述任一可能的实现方式，在第二方面的第二种可能的实现方式中，该第二网络设备向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该方法还包括：该第二网络设备接收该第一网络设备发送的第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除。
结合第二方面，或者第二方面的上述任一可能的实现方式，在第二方面的第三种可能的实现方式中，该第二网络设备向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该方法还包括：该第二网络设备接收该第一网络设备发送的第四请求消息，该第四请求消息用于请求将该第二网络设备作为与该终端设备通信的锚点网络设备；该第二网络设备根据该第四请求消息将自身配置为该锚点设备。
结合第二方面，或者第二方面的上述任一可能的实现方式，在第二方面的第四种可能的实现方式中，该第一资源集合包括用于上行传输的时频资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
结合第二方面，或者第二方面的上述任一可能的实现方式，在第二方面的第五种可能的实现方式中，该第一资源集合包括用于下行传输的时频资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
第三方面，本发明实施例提供一种第一网络设备，该第一网络设备包括处理器、存储器和收发器，该存储器用于存储指令，该处理器用于调用该存储器中的指令来执行如下操作：首先，通过该收发器向第二网络设备发送第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；然后，通过该收发器接收该第二网络设备发送的针对该第一请求消息的响应消息；接着，若该响应消息指示允许将该第二网络设备的小区加入该协作组，将该第二网络设备的小区加入该协作组。
通过执行上述操作，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。同时，由于这种方式扩大了所述终端的服务小区范围，所以也有减少小区切换的效果。
结合第三方面，在第三方面的第一种可能的实现方式中，该处理器还用于：通过该收 发器向该第二网络设备发送第二请求消息，该第二请求消息用于请求该第二网络设备进入低干扰模式。
结合第三方面，或者第三方面的上述任一可能的实现方式，在第三方面的第二种可能的实现方式中，该处理器通过该收发器向第二网络设备发送第一请求消息之前，还用于：确定该第二网络设备的小区满足加入该协作组的条件。
结合第三方面，或者第三方面的上述任一可能的实现方式，在第三方面的第三种可能的实现方式中，该处理器将该第二网络设备的小区加入该协作组之后，还用于：确定该第二网络设备的小区满足退出该协作组的条件；通过该收发器向该第二网络设备发送第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除；将该第二网络设备的小区从该协作组中删除。
结合第三方面，或者第三方面的上述任一可能的实现方式，在第三方面的第四种可能的实现方式中，该处理器还用于：确定自身的小区不满足为终端提供服务的条件；通过该收发器向第三网络设备发送第四请求消息，该第四请求消息用于请求该第三网络设备作为与该终端设备通信的锚点网络设备，该第三网络设备的小区属于该协作组且满足为该终端提供服务的条件。
结合第三方面，或者第三方面的上述任一可能的实现方式，在第三方面的第五种可能的实现方式中，该处理器还用于：通过该收发器向移动管理节点MME发送第五请求消息，该第五请求消息用于请求建立该MME与该协作组中各个小区的网络设备之间的针对该终端的S1连接。
结合第三方面，或者第三方面的上述任一可能的实现方式，在第三方面的第六种可能的实现方式中，该第一资源集合包括用于上行传输的时频资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
结合第三方面，或者第三方面的上述任一可能的实现方式，在第三方面的第七种可能的实现方式中，该第一资源集合包括用于下行传输的时频资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
第四方面，本发明实施例提供一种第二网络设备，该第二网络设备包括处理器、存储器和收发器，该存储器用于存储指令，该处理器用于调用该存储器中的指令来执行如下操作：首先，通过该收发器接收第一网络设备发送的第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；然后，通过该收发器向该第一网络设备发送针对该第一请求消息的响应消息，该响应消息用于该第一网络设备确定是否将该第二网络设备加入该协作组。
通过执行上述操作，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源 用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。同时，由于这种方式扩大了所述终端的服务小区范围，所以也有减少小区切换的效果。
结合第四方面，在第四方面的第一种可能的实现方式中，该处理器还用于：根据该第一请求消息确定自身满足加入该协作组的条件；若满足，该响应消息用于指示该第一网络设备将该第二网络设备加入该协作组；若不满足，该响应消息用于指示该第一网络设备不将该第二网络设备加入该协作组。
结合第四方面，或者第四方面的上述任一可能的实现方式，在第四方面的第二种可能的实现方式中，该处理器通过该收发器向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该处理器还用于：通过该收发器接收该第一网络设备发送的第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除。
结合第四方面，或者第四方面的上述任一可能的实现方式，在第四方面的第三种可能的实现方式中，该处理器通过该收发器向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该处理器还用于：通过该收发器接收该第一网络设备发送的第四请求消息，该第四请求消息用于请求将该第二网络设备作为与该终端设备通信的锚点网络设备；根据该第四请求消息将自身配置为该锚点设备。
结合第四方面，或者第四方面的上述任一可能的实现方式，在第四方面的第四种可能的实现方式中，该第一资源集合包括用于上行传输的时频资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
结合第四方面，或者第四方面的上述任一可能的实现方式，在第四方面的第五种可能的实现方式中，该第一资源集合包括用于下行传输的时频资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
第五方面，本发明实施例提供了一种第一网络设备，该第一网络设备包括第一发送单元、第一接收单元和添加单元，其中，各个单元的描述如下。第一发送单元，用于向第二网络设备发送第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；第一接收单元，用于接收该第二网络设备发送的针对该第一请求消息的响应消息；添加单元，用于在该响应消息指示允许将该第二网络设备的小区加入该协作组时，将该第二网络设备的小区加入该协作组。
通过运行上述单元，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减 少与该终端设备之外的设备之间的干扰了。
结合第五方面，在第五方面的第一种可能的实现方式中，该第一网络设备还包括第二发送单元，该第二发送单元用于向该第二网络设备发送第二请求消息，该第二请求消息用于请求该第二网络设备进入低干扰模式。
结合第五方面，或者第五方面的上述任一可能的实现方式，在第五方面的第二种可能的实现方式中，该第一网络设备还包括第一确定单元，该第一确定单元用于在该第一发送单元向第二网络设备发送第一请求消息之前，确定该第二网络设备的小区满足加入该协作组的条件。
结合第五方面，或者第五方面的上述任一可能的实现方式，在第五方面的第三种可能的实现方式中，该第一网络设备还包括第三发送单元、第二确定单元和删除单元，其中：第二确定单元，用于在该添加单元将该第二网络设备的小区加入该协作组之后，确定该第二网络设备的小区满足退出该协作组的条件；第三发送单元，用于向该第二网络设备发送第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除；删除单元，用于将该第二网络设备的小区从该协作组中删除。
结合第五方面，或者第五方面的上述任一可能的实现方式，在第五方面的第四种可能的实现方式中，该第一网络设备还包括第三确定单元和第四发送单元，其中：第三确定单元，用于确定自身的小区不满足为终端提供服务的条件；第四发送单元，用于向第三网络设备发送第四请求消息，该第四请求消息用于请求该第三网络设备作为与该终端设备通信的锚点网络设备，该第三网络设备的小区属于该协作组且满足为该终端提供服务的条件。
结合第五方面，或者第五方面的上述任一可能的实现方式，在第五方面的第五种可能的实现方式中，该第一网络设备还包括第五发送单元，该第五发送单元用于向移动管理节点MME发送第五请求消息，该第五请求消息用于请求建立该MME与该协作组中各个小区的网络设备之间的针对该终端的S1连接。
结合第五方面，或者第五方面的上述任一可能的实现方式，在第五方面的第六种可能的实现方式中，该第一资源集合包括用于上行传输的资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
结合第五方面，或者第五方面的上述任一可能的实现方式，在第五方面的第七种可能的实现方式中该第一资源集合包括用于下行传输的资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
第六方面，本发明实施例提供一种第二网络设备，该第二网络设备可以包括第一接收单元和第一发送单元，其中：第一接收单元，用于接收第一网络设备发送的第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；第一发送单元，用于向该第一网络设备发送针对该第一请求消息的响应消息，该响应消息用于该第一网络设备确定是否将该第二网络设备加入该协作组。
通过运行上述单元，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
结合第六方面，在第六方面的第一种可能的实现方式中，该第二网络设备还包括确定单元，该确定单元用于根据该第一请求消息确定自身满足加入该协作组的条件；若满足，该响应消息用于指示该第一网络设备将该第二网络设备加入该协作组；若不满足，该响应消息用于指示该第一网络设备不将该第二网络设备加入该协作组。
结合第六方面，或者第六方面的上述任一可能的实现方式，在第六方面的第二种可能的实现方式中，该第一发送单元向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该第二网络设备还包括第二接收单元，该第二接收单元用于接收该第一网络设备发送的第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除。
结合第六方面，或者第六方面的上述任一可能的实现方式，在第六方面的第三种可能的实现方式中，该第一发送单元向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该第二网络设备还包括第三接收单元和配置单元，其中：该第三接收单元用于接收该第一网络设备发送的第四请求消息，该第四请求消息用于请求将该第二网络设备作为与该终端设备通信的锚点网络设备；该配置单元用于根据该第四请求消息将自身配置为该锚点设备。
结合第六方面，或者第六方面的上述任一可能的实现方式，在第六方面的第四种可能的实现方式中，该第一资源集合包括用于上行传输的时频资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
结合第六方面，或者第六方面的上述任一可能的实现方式，在第六方面的第五种可能的实现方式中，该第一资源集合包括用于下行传输的时频资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
第七方面，本发明实施例提供一种通信方法，该方法包括：中心单元CU向多个数据单元DU发送第一消息，该第一消息包含时间戳和第二消息以便该多个DU在该时间戳指示的时间用相同的资源向终端发送该第二消息。
通过执行上述步骤，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
结合第七方面，在第七方面的第一种可能的实现方式中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
结合第七方面，或者第七方面的上述任一可能的实现方式，在第七方面的第二种可能的实现方式中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消 息和寻呼消息中的至少一项。
结合第七方面，或者第七方面的上述任一可能的实现方式，在第七方面的第三种可能的实现方式中，还包括：该CU接收该多个DU发送的多个第三消息，该第三消息为该终端发送给该多个DU的消息且该多个DU接收到的该第三消息相同。
结合第七方面，或者第七方面的上述任一可能的实现方式，在第七方面的第四种可能的实现方式中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
第八方面，本发明实施例提供一种通信方法，该方法包括：首先，数据单元DU接收中心单元CU发送的第一消息，该第一消息包含时间戳和第二消息且该第一消息由该CU发送给该DU和其他DU，以便该DU和该其他DU在该时间戳指示的时间用相同的资源向终端设备发送该第二消息；然后，该DU与该其他DU使用相同的资源向该终端设备发送该第二消息。
通过执行上述步骤，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
结合第八方面，在第八方面的第一种可能的实现方式中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
结合第八方面，或者第八方面的上述任一可能的实现方式，在第八方面的第二种可能的实现方式中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
结合第八方面，或者第八方面的上述任一可能的实现方式，在第八方面的第三种可能的实现方式中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
第九方面，本发明实施例提供一种中心单元CU，该中心单元包括发送单元，该发送单元用于向多个数据单元DU发送第一消息，该第一消息包含时间戳和第二消息以便该多个DU在该时间戳指示的时间用相同的资源向终端发送该第二消息。
通过执行上述操作，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
结合第九方面，在第九方面的第一种可能的实现方式中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
结合第九方面，或者第九方面的上述任一可能的实现方式，在第九方面的第二种可能的实现方式中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
结合第九方面，或者第九方面的上述任一可能的实现方式，在第九方面的第三种可能的实现方式中，该中心单元CU还包括接收单元，该接收单元用于接收该多个DU发送的多个第三消息，该第三消息为该终端发送给该多个DU的消息且该多个DU接收到的该第三消息相同。
结合第九方面，或者第九方面的上述任一可能的实现方式，在第九方面的第四种可能的实现方式中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
第十方面，本发明实施例提供一种数据单元，数据单元包括接收单元和发送单元，其中：接收单元，用于接收中心单元CU发送的第一消息，该第一消息包含时间戳和第二消息且该第一消息由该CU发送给该DU和其他DU，以便该DU和该其他DU在该时间戳指示的时间用相同的资源向终端设备发送该第二消息；发送单元，用于与该其他DU使用相同的资源向该终端设备发送该第二消息。
通过运行上述单元，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
结合第十方面，在第十方面的第一种可能的实现方式中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
结合第十方面，或者第十方面的上述任一可能的实现方式，在第十方面的第二种可能的实现方式中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
结合第十方面，或者第十方面的上述任一可能的实现方式，在第十方面的第三种可能的实现方式中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
第十一方面，本发明实施例提供一种中心单元CU，该中心单元CU包括处理器、存储器和收发器，存储器用于存储指令，该处理器用于调用该存储器中的程序来执行如下操作：通过该收发器向多个数据单元DU发送第一消息，该第一消息包含时间戳和第二消息以便该多个DU在该时间戳指示的时间用相同的资源向终端发送该第二消息。
通过执行上述操作，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
结合第十一方面，在第十一方面的第一种可能的实现方式中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
结合第十一方面，或者第十一方面的上述任一可能的实现方式，在第十一方面的第二种可能的实现方式中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、 系统消息和寻呼消息中的至少一项。
结合第十一方面，或者第十一方面的上述任一可能的实现方式，在第十一方面的第三种可能的实现方式中，该处理器还用于通过该收发器接收该多个DU发送的多个第三消息，该第三消息为该终端发送给该多个DU的消息且该多个DU接收到的该第三消息相同。
结合第十一方面，或者第十一方面的上述任一可能的实现方式，在第十一方面的第四种可能的实现方式中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
第十二方面，本发明实施例提供一种数据单元，该数据单元DU包括处理器、存储器和收发器，存储器用于存储指令，该处理器用于调用该存储器中的程序来执行如下操作：首先，通过该收发器接收中心单元CU发送的第一消息，该第一消息包含时间戳和第二消息且该第一消息由该CU发送给该DU和其他DU，以便该DU和该其他DU在该时间戳指示的时间用相同的资源向终端设备发送该第二消息；然后，通过该收发器与该其他DU使用相同的资源向该终端设备发送该第二消息。
通过执行上述操作，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
结合第十二方面，在第十二方面的第一种可能的实现方式中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
结合第十二方面，或者第十二方面的上述任一可能的实现方式，在第十二方面的第二种可能的实现方式中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
结合第十二方面，或者第十二方面的上述任一可能的实现方式，在第十二方面的第三种可能的实现方式中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
第三十方面，本发明实施例提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该指令在第一网络设备上运行时，上述第一方面或者上述第一方面的任一可能的实现方式所描述的方法得以实现；或者当该指令在第二网络设备上运行时，上述第二方面或者第二方面的任一可能的实现方式所描述的方法得以实现；或者当该指令在中心单元CU上运行时，上述第七方面或者上述第七方面的任一可能的实现方式所描述的方法得以实现；或者当该指令在数据单元DU上运行时，上述第八方面或者第八方面的任一可能的实现方式所描述的方法得以实现。
第十四方面，本发明实施例提供一种计算机程序产品，当该计算机程序产品在第一网络设备上运行时，上述第一方面或者上述第一方面的任一可能的实现方式所描述的方法得 以实现；或当该计算机程序产品在第二网络设备上运行时，上述第二方面或者第二方面的任一可能的实现方式所描述的方法得以实现；当该计算机程序产品在中心单元CU上运行时，上述第七方面或者上述第七方面的任一可能的实现方式所描述的方法得以实现；或当该计算机程序产品在数据单元DU上运行时，上述第八方面或者第八方面的任一可能的实现方式所描述的方法得以实现。
第十五方面，本发明实施例提供一种芯片系统，该芯片系统包括至少一个处理器，存储器和接口电路，该存储器、该收发器和该至少一个处理器通过线路互联，该至少一个存储器中存储有指令；该指令被该处理器执行时，上述第一方面，或者上述第一方面的任一可能的实现方式，或者上述第二方面，或者第二方面的任一可能的实现方式，或者上述第七方面，或者上述第七方面的任一可能的实现方式，或者上述第八方面，或者第八方面的任一可能的实现方式所描述的方法得以实现。
通过实施本发明实施例，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
附图说明
下面将对背景技术或者实施例所需要使用的附图作简单地介绍。
图1是现有技术中的一种无人机通信的场景示意图；
图2为本发明实施例公开的一种通信系统的结构示意图；
图3为本发明实施例公开的一种通信方法的流程示意图；
图4为本发明实施例公开的一种第二小区的组成场景示意图；
图5为本发明实施例公开的一种协议栈的结构示意图；
图6A为本发明实施例公开的一种多载波的场景示意图；
图6B为本发明实施例公开的一种单载波的场景示意图；
图7A为本发明实施例公开的一种第一资源集合中的资源分布示意图；
图7B为本发明实施例公开的又一种第一资源集合中的资源分布示意图；
图8为本发明实施例公开的一种建立S1连接的流程示意图；
图9为本发明实施例公开的一种删除S1连接的流程示意图；
图10为本发明实施例公开的又一种通信方法的流程示意图；
图11为本发明实施例公开的一种传输块的结构示意图；
图12为本发明实施例公开的一种第一消息的结构示意图；
图13为本发明实施例公开的又一种第一消息的结构示意图；
图14为本发明实施例公开的一种第一网络设备的结构示意图；
图15为本发明实施例公开的一种第二网络设备的结构示意图；
图16为本发明实施例公开的一种中心单元的结构示意图；
图17为本发明实施例公开的一种数据单元的结构示意图；
图18为本发明实施例公开的又一种第一网络设备的结构示意图；
图19为本发明实施例公开的又一种第二网络设备的结构示意图；
图20为本发明实施例公开的又一种中心单元的结构示意图；
图21为本发明实施例公开的又一种数据单元的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图对本发明实施例中的技术方案进行描述。
请参见图2，图2是本申请实施例提供的一种通信系统的结构示意图，该通信系统至少包括终端设备201、第一网络设备202和第二网络设备203。可选的，该通信系统20中的设备可以采用无线通信技术进行通信，例如，该无线通信技术可以为第二代移动通信技术(The 2nd-Generation，2G)、第三代移动通信技术(The 3rd-Generation，3G)、长期演进(long term evolution，LTE)、第四代移动通信技术(the 4th Generation mobile communication，4G)、第五代移动通信技术(the 5th-Generation，5G)、或者无线保真(WIreless-Fidelity，WI-FI)技术、或者蓝牙技术、或者zigbee技术，或者其他现有的通信技术、或后续研究出的通信技术，等等。其中，终端设备201可以为具有无线通信功能的手持设备(例如，手机、平板电脑、掌上电脑等)、车载设备(例如，汽车、自行车、电动车、飞机、船舶、火车、高铁等)、可穿戴设备(例如智能手表、智能手环、计步器等)、智能家居设备(例如，冰箱、电视、空调、电表等)、飞行设备(例如，无人机、飞机)、智能机器人、车间设备、能够连接到无线调制解调器的其它处理设备，以及各种形式的用户设备、移动台(mobile station，MS)、终端设备(terminal)、终端设备(terminal equipment)，等等。第一网络设备202和第二网络设备203可以为网络侧的设备，例如，5G中的基站、4G中的基站，或者其他任何可以实现无线网络接入功能的设备，等等。
请参见图3，图3是本发明实施例提供的一种通信方法的流程示意图，该流程可以基于图2所示的通信系统来实现，该方法包括但不限于如下步骤。
步骤S301：第一网络设备向第二网络设备发送第一请求消息。
具体地，所述第一请求消息用于请求将所述第二网络设备的小区加入协作组，为了描述方便，后续可以称该协作组中的每个小区都为第一小区，该协作组包括至少一个第一小区，所述协作组包括所述第一网络设备的小区(可称为第一小区)；所述协作组中的小区用于各分出一部分资源来组成第一资源集合，所述第一资源集合用于第一网络设备和第二网络设备与终端设备通信。
所述第一资源集合中的资源由一个小区中的部分资源组成或者由多个小区中的资源组成，也即是说，该第一资源集合中的资源由至少一个小区中的资源组成，后续可以称该至少一个小区中的每一个小区为一个第一小区。可选的，当该第一资源集合中的资源由多个第一小区中的资源组成时，该多个第一小区可以都提供自身的全部资源来组成该第一资源集合，也可以都提供自身的部分资源来组成该第一资源集合。该第一资源集合中的资源可以只包含上行传输的资源，也可以只包含下行传输的资源，还可以既包含上行传输的资源也包括下行传输的资源。另外，该第一资源集合中的资源为周期性的资源，也可以理解为该第一资源集合中的资源为静态或者半静态的资源，使用该第一资源集合中的资源进行 通信能够减少信令交互，从而减少时延和节省通信资源。
进一步地，在同一传输时刻，所述第一资源集合仅服务于一个终端设备或者一个终端设备组，所述第一终端设备组由多个终端设备组成，在不同的传输时刻，所述第一资源集合中用于同向传输的资源在同一个载波上占用相同的频域位置。其中，所述第一资源集合可以包含多个上行载波和/或下行载波。在本发明实施例中，该第一终端设备组中的多个终端设备均属于满足上述预设条件的设备，例如，该多个终端设备的高度均满足预设条件或者所述多个终端设备均处于预设的飞行状态。
该第一资源集合中的频域资源可以为系统带宽中的部分资源，例如，一段资源块(resource block，RB)范围、一段资源元素(resource element，RE)范围，等等。该第一资源集合除了包含频域资源外，还可能包括时域、码域和波束域中至少一个维度的资源，当然也可能包含其他维度的资源。当该第一资源集合包含时域资源时，该时域资源的单位可以为现有的的帧、子帧、符号、时隙(slot)、微时隙(mini-slot)、符号组等，也可以为后续提出的其他形式的调度时间单位，后续可以以该时域的单位为子帧为例进行描述。
在本发明实施例中，该第一资源集合可以是该第一网络设备与其他网络设备协商出来的(本发明实施例中的步骤S301-S305可以为协商该第一资源集合的过程)，协商的流程可以由该第一网络设备发起。
在第一种可选方案中，该第一资源集合可以构成一个第二小区，该第二小区也有自身的小区标识，由于该第一资源集合由该至少一个第一小区各分出的部分资源构成，因此该第二小区的信号覆盖范围为该至少一个第一小区的信号覆盖范围取并集，这样一来，当该终端设备在移动时只要还在该至少一个第一小区范围内，则该终端设备就不需要进行小区切换。可选的一种方式，第二小区的范围，或第一资源集合中的第一小区列表，是可以随终端移动动态改变的。可选的另一种方式，第二小区的范围，或第一资源集合中的第一小区列表，是固定的，不随终端位置改变，此种情况下，蜂窝网络中可以存在多个第二小区(图4示意了2个第二小区，其中每个阿拉伯数字代表一个第一小区)，这多个第二小区可以构成一个单频网，该多个第二小区中的各个第二小区用的频域资源相同，该各个第二小区用的时频资源可以完全相同，或者具体的时域资源位置也可以不同。可选的，构成同一个第二小区的各个第一小区的载波相同，若两个第一小区分别用于构成不同的第二小区则这两个第一小区的载波不相同。
在第二种可选方案中，该第一资源集合不需要构成一个第二小区，这样一来该终端设备在移动时可能会在该至少一个第一小区之间切换。
可选的，该终端设备在蜂窝网络中通信时存在一条S1链路，可以是存在于核心网与中心单元(center unit，CU)(可以为该第一网络设备)之间的S1链路，也可以使核心网与锚点基站间的S1链路，后续以CU为例进行描述。下行数据的传输流程为：CU收到核心网发送的数据后将数据分发给至少一个数据单元(data unit，DU)(每个DU可以为上述至少一个第一小区中的一个第一小区的网络设备)，或者也可以是一个第一小区所属的基站，可称为节点基站，后续描述以DU为例。然后该至少一个DU中每个DU将收到的数据发送给该终端设备。上行数据的传输流程为：该终端设备使第一资源集合中的资源发送上行数据，该数据由至少一个DU接收，该至少一个DU将接收到的数据发送给该CU，该CU 接收到该至少一个DU发送的数据后将接收到的数据发送给该核心网。如果是锚点基站和节点基站的架构，不需要设计协议栈分离模式。如果是CU-DU架构，CU-DU间需要进行协议栈分离，具体的协议栈设置如图5所示，CU和DU的协议栈从媒体访问控制(Media Access Control，MAC)层分开，MAC层在CU的部分可以称为High MAC(也称高MAC，功能包括但不限于MAC层MAC控制元素(MAC control element，MAC CE)生成和接收，复用和解复用，调度功能的至少一项)，MAC层在DU的部分可以称为Low MAC(也称低MAC，功能包括但不限于上行混合自动重传请求(hybrid automatic repeat request，HARQ)和下行绑定bundling发送的至少一项)。该至少一个DU需要在相同时间使用相同的频域资源发送相同的数据给该终端设备，例如，该至少一个DU需要在SFN2，子帧3的RB10-15同时发送资源块TB1给该终端设备。为实现这一功能，首先TB1由High MAC生成，再传输给low MAC由low MAC进行发送。在传给low MAC TB1数据包的同时还需要指示具体的发送时刻，以便该至少一个DU的low MAC都在该发送时刻发送该TB1。指示该发送时刻的信息可以是具体的帧号和子帧号，也可以是一个表示时刻的索引值(例如，以10秒钟为一个周期，共10000毫秒(ms)，可以设置0到9999的索引值来依次标记第1ms到第10000ms)，也可以是其他表示时域位置的信息。
当该第一资源集合包含时域资源时，该时域包括但不限于如下几种可能性：
方式一：可以使用时域的起始位置、长度、周期、偏移量和结束位置中至少两项来表示所述第一资源集合包含的时域位置，例如，以子帧为单位并按照指示周期和偏移量的方式来指示该第一资源集合中的时域，假设周期为T，偏移值为offset，一个帧内的子帧总数为M，则该第一资源集合包含的子帧号x可以按照以下公式计算x＝(T*N+offset)mod(M)，其中N为第一资源集合中时域资源位置的序号。如果M能被T整除，则在一个帧中第一资源集合的子帧总是固定的。例如T＝5，M＝10，offset＝1，则每一帧中的子帧1和子帧6都是该第一资源集合中的子帧。
方式二：通过帧号和子帧号联合计算，例如(10*SFN+subframe)＝[(10*SFNstart time+subframestart time)+N*周期值]modulo 10240，其中SFN为帧号，subframe为子帧号，SFNstart time和subframestart time为半静态调度起始的帧号和子帧号。相比于方式一，公式中引入了帧号，所以需要该网络设备与该其他网络设备之间的帧号相同，同时这种方式也可以使用超过一个帧长度的周期。
方式三：根据传输时间单位图样来表示所述第一资源集合包含的时域位置，直接确定固定的子帧(属于一种调度时间单位)图样，即直接规定具体的用于第一资源集合的帧号和子帧号，例如规定单数帧中的子帧1和子帧2为该第一资源集合的子帧。也可以只规定子帧号，即每一帧中相应的子帧都属于该第一资源集合。
另外，当该第一资源集合中包含上行的资源和下行的资源时，指示下行的资源用到的参数与指示上行的资源用到的参数可能相同也可能不相同。例如，假设该第一资源集合包含多载波，如图6A所示，上行资源包含N个载波(N为大于1的正整数)，上行资源的时间位置以符号组为单位。载波1中每个资源时域上占用1个符号，每个符号间隔为6个符号，频域上占用4个资源块RB；载波2中每个资源时域上占用2个符号，每个符号组间隔为5个符号，频域上占用3个RB；载波N每个资源包含3个时域符号，每个符号组间隔4 个符号，频域上占用4个RB。而下行资源包含M个载波(M为大于1的正整数)，时域以单个子帧长度为单位。载波1周期为2个子帧，偏移值为1，频域占用2个RB；载波2周期为4个子帧，偏移值为1，频域占用3个RB；载波M周期为2个子帧，偏移值为1，频域占用3个RB，所以每两个子帧出现一个虚拟通信区子帧。再如，假设该第一资源集合包括一个载波，如图6B所示，上行资源的时间位置以符号组为单位，每个资源包含3个时域符号，每个符号组间隔4个符号。而下行资源以单个子帧长度为单位，周期为2个子帧，偏移值为1，所以每两个子帧出现一个虚拟通信区子帧。可选的，第一资源集合中下行资源并不占据子帧内全部符号，只是占用部分符号，如占用子帧内的后11个符号，前3个符号仍用于物理下行控制信道(physical downlink control channel，PDCCH)(以子帧内包含14个符号为例)。
可选的，该第一资源集合中还可以存在多种信道，例如，当该第一资源集合构成一个第二小区时，该第一资源集合内需要划分出较多的信道来支持该第二小区的正常运行。为了便于理解，以下例举几种可能的信道划分方案：
方案一：该第一资源集合包括用于下行传输的时频资源和用于上行传输的时频资源，且用于下行传输的时频资源和用于上行传输的时频资源均可以用于数据信道的传输。
方案二：该第一资源集合包括用于下行传输的时频资源和用于上行传输的时频资源，且用于下行传输的时频资源和用于上行传输的时频资源均可以用于数据信道的传输。并且所述下行传输包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输，所述上行传输包括参考信号、随机接入信道和控制信道中至少一项的传输。
可选的，该第一资源集合内包含的信道的类型可以与长期演进(long term evolution，LTE)中信道划分方式类似，相对与LTE而言是压缩的版本(因为LTE中可用的时频资源的资源范围远大于该第一资源集合的资源范围)。示例的，如图7A所示，假设该第一资源集合中用于下行传输的时频资源的时域包括一个子帧中的后11个符号(这11个符号的索引范围从3到13)且频域包括6个RB，那么可以使控制信道和同步信道分别占用一个单独的符号，数据信道占用其他的符号，并且在数据信道中分布着用于进行信道估计的解调参考信号。控制信道中可以携带对终端设备的调度指示信息。如图7B所示，假设该第一资源集合中用于上行传输的时频资源的时域包括一个子帧且频域上占用5个RB，那么可以使控制信道占用一个RB(可选的，还可以采用跳频设计，即在两个时隙上占用的频域位置不同)；解调参考信号占用两个符号，分别为符号3和符号10；其余位置为数据信道占用，终端设备也可以在数据信道中反馈下行数据的确认(ACK)/非确认(NACK)。
步骤S302：该第二网络设备接收该第一网络设备发送的第一请求消息。
具体地，该第二网络设备可以根据一些信息确定是否加入到该协作组中，例如，该第一请求消息中可以包含该第一资源集合信息，该第二网络设备可以判断自己的小区中是否有终端设备使用该第一资源集合中的资源，若该第二网络设备自己的小区中有终端设备使用该第一资源集合中的资源则该第二网络设备确定不加入该协作组，若该第二网络设备自己的小区中没有终端设备使用该第一资源集合中的资源则该第二网络设备确定加入该协作组。再如，该第二网络设备判断自己的小区当前空闲的资源的数量是否大于预设阈值，若大于则该第二网络设备确定加入该协作组，若不大于则该第二网络设备确定不加入该协作 组。或者资源占用率低于预设门限值时可以加入该协作组。该第二网络设备还可以通过其他信息来确定是否加入该协作组，该其他信息具体是什么信息此处暂不作限定，只需预先设定即可。
步骤S303：该第二网络设备向该第一网络设备发送针对该第一请求消息的响应消息。
具体地，若确定加入该协作组则该第二网络设备向该第一网络设备发送响应消息以向该第一网络设备指示该第二网络设备允许所述小区加入该协作组，若确定不加入该协作组则该第二网络设备向该第一网络设备发送响应消息以向该第一网络设备指示该第二网络设备不允许所述小区加入该协作组，或者不向该第一网络设备发送响应消息以向该第一网络设备表明该第二网络设备不允许所述小区加入该协作组。
步骤S304：该第一网络设备接收该第二网络设备发送的针对第一请求消息的响应消息。
步骤S305：所述第一网络设备将所述第二网络设备的小区加入所述协作组。
具体地，若所述响应消息指示允许将所述第二网络设备的小区加入所述协作组，则所述第一网络设备将所述第二网络设备的小区加入所述协作组。可选的，若第二网络设备的小区加入了该协作组，该第一网络设备可以向该第二网络设备发送该协作组的标识或所述第二小区的标识，接入该协作组中的终端设备的无线网络临时标识(radio network temporyidentity，RNTI)、上述第一资源集合内的信道划分方式的信息，上述第一资源集合的分组数据汇聚协议(packet data convergence protocol，PDCP)、无线链路层控制协议(radio link control，RLC)、媒体访问控制(media access control，MAC)、物理层(physical layer，PHY)配置，等等。该协作组的标识可以用于物理层的各种序列生成；该终端设备的RNTI可用于生成扰码，以对控制信道或数据信道进行加扰；信道划分方式的信息用于第一资源集合内的信道构成；PDCP、RLC、MAC、PHY配置包括各层协议的配置，可以针对终端设备的不同承载分别配置。可选的，添加该第二网络设备的小区的过程需要考虑新增的该第二网络设备的数据传输过程，以保证该终端设备的数传的稳定性。上行传输：在配置完协议栈后，该第一网络设备或中心单元(center unit，CU)指示新增该第二网络设备的起始时刻，从起始时刻开始该新增的第二网络设备可以开始进行上行数据接收，循环冗余校验(cyclic cedundancycheck，CRC)校验成功后可以直接向上递交。下行传输：在指定时刻传输指定的PDCP服务数据单元(service data unit，SDU)，从每个HARQ进程(process)的新传开始，在覆盖所有HARQ进程后完成过渡，从而开始正式进行数据传输。
可选的，若所述响应消息指示不允许将所述第二网络设备的小区加入所述协作组，则所述第一网络设备不将所述第二网络设备的小区加入所述协作组。
该第一网络设备还可以向该第二网络设备发送第二请求消息，所述第二请求消息用于请求所述第二网络设备进入低干扰模式。相应地，该第二网络设备接收到该第二请求消息后即响应该第二请求消息的请求，进入到低干扰模式，例如，该第二网络设备降低自己的小区中的上述第一资源集合上的下行发送功率，或向终端发送指示使终端设备在上述第一资源集合的上行资源上降低发送功率。可选的，若该第二网络设备进入了低干扰模式则可以向该第一网络设备发送确定消息以表明该第二网络设备进入了低干扰模式。可选的，若第二网络设备未进入低干扰模式则可以向该第一网络设备发送拒绝消息以表明该第二网络设备不进入低干扰模式。
可选的，终端设备移动时该协作组也可能需要调整，也可以称为第二小区范围的调整或第一资源集合相应小区列表的调整，以下例举两种可能的调整的方式：
方式一：该协作组中新增了小区或者删除了小区。其中，增加小区时具体的操作流程可以参照该第一网络设备将该第二网络设备的小区加入到该协作组中的流程。删除小区时同样以删除该第二网络设备的小区要为例来进行描述(删除其他小区的方式与删除该第二网络设备的小区的方式相同)，删除流程包括：
11、所述第一网络设备确定所述第二网络设备的小区满足退出所述协作组的条件。其中，退出协作组的条件是预先定义的，该条件的具体内容此处暂不作限定，但是为了方便理解以下例举几种可选的方式，例如，当某个指定的终端设备不在该第二网络设备的小区的信号范围内时，则该第二网络设备的小区满足退出该协作组的条件。再如，当某个指定的终端设备接收到的由该第二网络设备发送的小区信号弱于某个预设信号阈值时，例如，小区参考信号接收功率(reference signal receiving power，RSRP)/参考信号接收质量(reference rignal receiving quality，RSRQ)/信号与干扰加噪声比(signal to interference plus noise ratio，SINR)低于某预设门限值时，则该第二网络设备的小区满足退出该协作组的条件。再如，当该第二网络设备向该网络设备发送消息请求退出该协作组时，该第二网络设备满足退出该协作组的条件。
12、所述第一网络设备向所述第二网络设备发送第三请求消息，所述第三请求消息用于请求(或者说“通知”)将所述第二网络设备的小区从所述协作组中删除。
13、所述第一网络设备将所述第二网络设备的小区从所述协作组中删除。该第一网络设备具有该协作组所包含的各个小区的信息，例如，各个小区的标识，该第一网络设备可以将从该协作组小区列表中将该第二网络设备的小区的信息删除掉，从而将该第二网络设备的小区从该协作组中删除。可选的，上述步骤12可以有也可以没有，当没有上述步骤12时，表明该第一网络设备从该协作组中删除了该第二网络设备的小区但是不通知该第二网络设备。可选的，步骤12之后该第二网络设备可以根据该第三请求消息向该第一网络设备发送响应消息，若该响应指示可以将该第二网络设备的小区从该协作组中删除，该第一网络设备才执行步骤13，否则不执行步骤13。
方式二：该协作组中的锚点(anchor)网络设备由该第一网络设备换成了另外一个网络设备。该锚点网络设备负责与核心网通过S1链路通信，和进行该协作组的维护，以及管理或调度上述第一资源集合，同时生成配置信息并指示其他节点网络设备在相同的时频资源发送给终端设备以便该终端设备使用该第一资源集合中的资源与网络设备进行通信。该协作组中的锚点网络设备由该第一网络设备换成了另外一个网络设备包括如下步骤：
21、所述第一网络设备确定自身的小区不满足为终端设备提供服务的条件。上述第一资源集合本来就是用来提供给一些指定终端设备使用的，若该第一网络设备不满足为该指定终端设备提供服务的条件，那么就需要更换重新产生锚点网络设备以使新的锚点网络设备为该指定终端设备提供服务。不满足为该指定终端设备提供服务的条件具体是什么内容此处不作限定，只需预先设定好即可，以下例举几种可选情况以方便理解。例如，当该第一网络设备的小区的信号范围无法覆盖该指定终端设备时，该第一网络设备的小区不满足为该指定终端设备提供服务的条件。再如，该指定终端设备接收到的该协作组中一个小区 的信号比该终端设备接收到的该第一网络设备的小区的信号强时，该第一网络设备的小区不满足为该指定终端设备提供服务的条件。
22、所述第一网络设备向第三网络设备发送第四请求消息，所述第四请求消息用于请求将所述第三网络设备作为终端设备锚点网络设备，所述第三网络设备的小区可以属于所述协作组且满足为所述终端设备提供服务的条件，或者所述第三网络设备的小区可以不在协作组中，此时需先执行小区添加动作再改变锚点基站。
23、该第三网络设备接收该第一网络设备发送的第四请求消息。该第三网络设备接收到该第四请求消息之后就可以成为锚点网络设备，从而替代第一网络设备来维护该协作组。
可选的，锚点网络设备由第一网络设备变为第三网络设备时，为保证数据传输的稳定，可执行以下流程，以下过程可以用于下行数传：
如果RLC UM模式和maxHARQ-Tx＝1，第一网络设备向第三网络设备发送PDCP SDU、RLC SDU segment(下行only)，并直接指示切换时间点。从切换时间点开始，由第三网络设备向终端设备发送数据。
如果RLC UM模式和maxHARQ-Tx>1，第三网络设备依赖于异步自适应重传，绝对切换点后最初的几次数传可以只做新传。
如果RLC AM模式和maxHARQ-Tx>1，可以向该终端设备发送上行PDCP status report或要求该终端设备返回下行PDCP status report，以重新进行PDCP PDU上下行发送。该方式还需要该终端设备清空HARQ buffer和RLC buffer。或者，第一网络设备与第二网络设备之间交互RLC buffer状态信息和buffer数据，即RLCbuffer不清空，只清空HARQbuffer。
在本发明实施例中，不同的网络设备之间(例如，第一网络设备与第二网络设备之间，第一网络设备与第三网络设备之间)可能通过X2口通信，也可能通过核心网通信。
可选的，如果该协作组中的各个小区对应的(或者说所属的)各个网络设备之间的通信时延短到可以忽略不计或是低于一个预设门限，可以认为该各个网络设备之间具有理想backhual链路，此时终端设备与该各个网络设备之间的数传模式类似于COMP，即多天线的联合发送接收，而且只需要锚点网络设备与核心网设备之间维持一个S1连接即可(包括控制面S1-MME连接和用户面S1-U连接)。如果该各个网络设备之间没有理想backhaul，可以建立MME与该协作组各个网络设备(即该协作组中的各个小区对应的各个网络设备)之间的针对所述终端设备的S1连接，使得该各个网络设备都与核心网建立S1链路。例如，锚点网络设备向MME发送该协作组中各个小区的信息和该终端设备的标识，MME根据该各个小区的标识和该终端设备的标识建立与该各个小区对应的各个网络设备之间的针对所述终端设备的S1连接。以下简单介绍建立S1连接和删除S1连接的流程。
请参见图8，图8是建立S1连接的大致流程，该流程包括但不限于如下步骤：
31、第一网络设备向MME发送加入到协作组中的各个小区的标识和某个终端设备的标识。
32、该MME接收该各个小区的标识和该某个终端设备的标识，然后进行S1-MME链路建立，该某个终端的上下文(context发送)，或者也可以不建立S1-MME链路，只建立下述的S1-U链路；
33、该MME向SGW发送S1-U链路建立指示；
34、SGW向所述小区所属网络设备(例如基站)发送S1-U建立请求。
35、所述小区所属网络设备向SGW发送S1-U建立完成消息。
36、MME向该第一网络设备发送通知消息，已通知MME与该各个小区之间已经建立了针对该某个终端设备与该各个小区之间的S链路。
请参见图9，图9是删除S1连接的大致流程，该流程包括但不限于如下步骤：
41、第一网络设备向MME发送加入到协作组中的各个小区的标识和某个终端设备的标识。
42、该MME接收该各个小区的标识和该某个终端设备的标识，然后进行S1-MME链路删除，该某个终端的上下文(context)删除；
43、该MME向SGW发送S1链路删除指示；
44、SGW向所述小区所属网络设备(例如基站)发送S1-U删除请求。
45、所述小区所属网络设备向SGW发送S1-U删除完成消息。
46、MME向该第一网络设备发送通知消息，已通知MME与该各个小区之间针对该某个终端设备与该各个小区之间的S1链路已经删除。
在图3所示的方法中，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
请参见图10、图10是本发明实施例提供的一种通信方法的流程示意图，该方法包括但不限于如下步骤：
步骤S1001：中心单元CU向多个数据单元DU发送第一消息。
具体地，所述第一消息包含时间戳和第二消息以便所述多个数据单元(data unit，DU)在所述时间戳指示的时间用相同的资源向终端发送所述第二消息，其中，所述第一消息还可以包括其他调度信息，例如，调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素位置信息、所述资源的频域位置信息，等等。另外，所述第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。可选的，该多个DU可以为多个小区的网络设备，这多个小区可以各分出一部分资源来组成一个资源集合，可以称该资源集合为第一资源集合。可以看做这多个小区构成了一个虚拟小区，该虚拟小区的资源为该第一资源集合的资源。如图4所示，小区1、小区2、小区3、小区4、小区5、小区6、小区7和小区8构成一个虚拟小区(也称第二小区)，小区7、小区8、小区9、小区10、小区11、小区12、小区13和小区14构成另一个虚拟小区(也称第二小区)。
可选的，该DU和(center unit，CU)在MAC层分离，图5为对应的结构示意图，其中，所述CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，所述多个DU具备MAC层的上行HARQ和下行绑定bundling发送功能中至少一项。CU和DU在MAC层分离主要有以下几个原因：
1、PDCP有安全功能包括数据加密和完整性功能，如果PDCP层放在DU，各个DU单独完成数据加密功能，不利于安全秘钥的统一管理，所以PDCP层协议栈也部署在CU。
2、RLC层具有数据包分片、串接和自动重传请求(Automatic Repeat reQuest，ARQ)功能，如果RLC层放在DU，上行数据分片后，可能多个DU都只能收到部分分片，无法凑齐完成的数据包上交给CU；同时对于ARQ功能，多个DU分别指示终端进行ARQ重传，对于多个DU属于同一个小区的情况难以进行资源协调。所以RLC层协议栈也部署在CU。
3、每个设备(包括各种网络设备和各种终端设备)都具有一个相应的MAC实体。功能包括MAC CE生成、接收、复用、解复用、调度功能、HARQ等。例如，上述虚拟小区是一个单一小区，那么组成该虚拟小区的各个小区的DU(或者说网络设备)应该进行统一的资源调度，所以调度功能应该部署在CU；调度的基础是数据，所以各个承载的数据复用和解复用也应该部署在CU，同时MAC CE由于需要与数据共同组成TB，所以也需要部署在CU。但是HARQ功能需要遵循严格的时序要求，例如，HARQ初传发生在子帧n，则HARQ反馈需要出现在子帧n+4，如果反馈结果是NACK则重传需要在子帧n+8发出。对于CU-DU间非理想回传链路(non ideal backhaul)，单向传输时间可能达到20ms，往返时间达到40ms，如果HARQ功能部署在CU就不能满足HARQ时序要求，所以HARQ功能需要部署在DU。对于上行HARQ，各个DU在收到上行数据后，如果CRC校验成功可以回传给CU并向终端设备反馈ACK，如果CRC校验失败则既不向CU回传数据也不向终端设备反馈NACK。终端设备如果收到ACK就能确认数据发送成功，如果在指定反馈时间点收不到ACK则确认数据发送失败，然后可以进行相应的重传动作。对于下行HARQ，如果不能保证每个DU都能收到一致的ACK/NACK反馈，可以不使用HARQ功能，或者使用bundling功能。
步骤S1002：该多个数据单元DU接收该第一消息。
具体地，该多个DU各自解析出该第一消息中的信息中的时间戳和第二消息，当该第一消息中还包含上述其他调度信息时，该多个DU也会解析出这些信息。
步骤S1003：该多个DU均在该时间戳指示的时间向终端设备发送该第二消息。
具体地，该多个DU发送该第二消息使用的频域资源相同，该多个DU发送该第二消息使用的频域资源可以预先定义在协议中，也可以由该第一消息中携带信息来指示。举例来说，该多个DU需要在SFN2，子帧3的数据块RB10-15同时发送数据包TB1(属于该第二消息)给该终端设备。为实现这一功能，首先TB1由High MAC生成，再传输给low MAC进行发送。在给low MAC传输TB1的同时，还需要指示具体的发送时刻(即时间戳)。表示发送时刻的信息可以是具体的帧号、子帧号、时隙号、符号索引中的一项或其中若干项的组合，也可以是一个表示时刻的索引值(例如以10秒钟为一个周期，共10000毫秒，索引值的取值范围是0-9999，对应这10000ms)。发送时刻信息(即时间戳)和数据包TB1(即第二消息)可以组合成一个新TB(即第一消息)，该新TB的结构可以如图11所示。
可选的，该第一消息可以采用静态或半静态的方式预先配置，还可以采用动态调度，另外，当该第一消息还包括其他调度信息时，该第一消息的结构可以如图12所示。
可选的，如果除下行数据信道外，还需要使用下行控制信道(例如，为支持对多个终 端设备使用的资源进行调度)，该第一消息可以采用图13所示的数据结构。其中，相对于以上两种结构新增了一个控制信道调度信息，用于指示控制信道具体的CCE位置、聚集级别、调制方式中的至少一个。
可选的，该多个DU后续还可以接收该终端设备发送的第三消息，该多个DU中各个DU接收到的第三消息相同。然后，该多个DU将接收到的第三消息发送给该CU。
在图10所示的方法中，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
上述详细阐述了本发明实施例的方法，下面提供了本发明实施例的装置。
请参见图14，图14是本发明实施例提供的一种第一网络设备140的结构示意图，该第一网络设备140可以包括第一发送单元1401、第一接收单元1402和添加单元1403，其中，各个单元的描述如下。第一发送单元1401用于向第二网络设备发送第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；第一接收单元1402用于接收该第二网络设备发送的针对该第一请求消息的响应消息；添加单元1403用于在该响应消息指示允许将该第二网络设备的小区加入该协作组时，将该第二网络设备的小区加入该协作组。
通过运行上述单元，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
在一种可选的方案中，该第一网络设备还包括第二发送单元，该第二发送单元用于向该第二网络设备发送第二请求消息，该第二请求消息用于请求该第二网络设备进入低干扰模式。
在又一种可选的方案中，该第一网络设备还包括第一确定单元，该第一确定单元用于在该第一发送单元向第二网络设备发送第一请求消息之前，确定该第二网络设备的小区满足加入该协作组的条件。
在又一种可选的方案中，该第一网络设备还包括第三发送单元、第二确定单元和删除单元，其中：第二确定单元，用于在该添加单元将该第二网络设备的小区加入该协作组之后，确定该第二网络设备的小区满足退出该协作组的条件；第三发送单元，用于向该第二网络设备发送第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除；删除单元，用于将该第二网络设备的小区从该协作组中删除。
在又一种可选的方案中，该第一网络设备还包括第三确定单元和第四发送单元，其中：第三确定单元，用于确定自身的小区不满足为终端提供服务的条件；第四发送单元，用于向第三网络设备发送第四请求消息，该第四请求消息用于请求该第三网络设备作为与该终 端设备通信的锚点网络设备，该第三网络设备的小区属于该协作组且满足为该终端提供服务的条件。
在又一种可选的方案中，该第一网络设备还包括第五发送单元，该第五发送单元用于向移动管理节点MME发送第五请求消息，该第五请求消息用于请求建立该MME与该协作组中各个小区的网络设备之间的针对该终端的S1连接。
在又一种可选的方案中，该第一资源集合包括用于上行传输的资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
在又一种可选的方案中，该第一资源集合包括用于下行传输的资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
需要说明的是，各个单元的实现还可以对应参照图3所示的方法实施例的相应描述。
在图14所描述的第一网络设备140中，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
请参见图15，图15是本发明实施例提供的一种第二网络设备150的结构示意图，该第二网络设备150可以包括第一接收单元1501和第一发送单元1502，其中：第一接收单元1501用于接收第一网络设备发送的第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；第一发送单元1502用于向该第一网络设备发送针对该第一请求消息的响应消息，该响应消息用于该第一网络设备确定是否将该第二网络设备加入该协作组。
通过运行上述单元，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
在一种可选的方案中，该第二网络设备还包括确定单元，该确定单元用于根据该第一请求消息确定自身满足加入该协作组的条件；若满足，该响应消息用于指示该第一网络设备将该第二网络设备加入该协作组；若不满足，该响应消息用于指示该第一网络设备不将该第二网络设备加入该协作组。
在又一种可选的方案中，该第一发送单元向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该第二网络设备还包括第二接收单元，该第二接收单元用于接收该第一网络设备发送的第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除。
在又一种可选的方案中，该第一发送单元向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该第二网络设备还包括第三接收单元和配置单元，其中：该第三接收单元用于接收该第一网络设备发送的第四请求消息，该第四请求消息用于请求将该第二网络设备作为与该终端设备通信的锚点网络设备；该配置单元用于根据该第四请求消息将自身配置为该锚点设备。
在又一种可选的方案中，该第一资源集合包括用于上行传输的时频资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
在又一种可选的方案中，该第一资源集合包括用于下行传输的时频资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
需要说明的是，各个单元的实现还可以对应参照图3所示的方法实施例的相应描述。
在图15所描述的第二网络设备150中，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
请参见图16，图16是本发明实施例提供的一种中心单元(CU)160的结构示意图，该中心单元160可以包括发送单元1601，该发送单1601用于向多个数据单元DU发送第一消息，该第一消息包含时间戳和第二消息以便该多个DU在该时间戳指示的时间用相同的资源向终端发送该第二消息。
通过执行上述操作，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
在又一种可选的方案中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
在又一种可选的方案中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
在又一种可选的方案中，该中心单元CU还包括接收单元，该接收单元用于接收该多个DU发送的多个第三消息，该第三消息为该终端发送给该多个DU的消息且该多个DU接收到的该第三消息相同。
在又一种可选的方案中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
需要说明的是，各个单元的实现还可以对应参照图10所示的方法实施例的相应描述。
在图16所描述的中心单元160中，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相 同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
请参见图17，图17是本发明实施例提供的一种数据单元(DU)170的结构示意图，该数据单元170可以包括接收单元1701和发送单元1702，其中：接收单元1701用于接收中心单元CU发送的第一消息，该第一消息包含时间戳和第二消息且该第一消息由该CU发送给该DU和其他DU，以便该DU和该其他DU在该时间戳指示的时间用相同的资源向终端设备发送该第二消息；发送单元1702用于与该其他DU使用相同的资源向该终端设备发送该第二消息。
通过运行上述单元，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
在一种可选的方案中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
在又一种可选的方案中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
在又一种可选的方案中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
需要说明的是，各个单元的实现还可以对应参照图10所示的方法实施例的相应描述。
在图17所描述的数据单元170中，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
请参见图18，图18是本发明实施例提供的一种第一网络设备180，该第一网络设备180包括处理器1801、存储器1802和收发器1803，所述处理器1801、存储器1802和收发器1803通过总线相互连接。
存储器1802包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器1802用于相关指令及数据。收发器1903用于接收和发送数据。
处理器1801可以是一个或多个中央处理器(central processing unit，CPU)，在处理器701是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该第一网络设备180中的处理器1801用于读取所述存储器1802中存储的程序代码，执行以下操作：
首先，通过该收发器向第二网络设备发送第一请求消息，该第一请求消息用于请求将 该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；然后，通过该收发器接收该第二网络设备发送的针对该第一请求消息的响应消息；接着，若该响应消息指示允许将该第二网络设备的小区加入该协作组，将该第二网络设备的小区加入该协作组。
通过执行上述操作，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
在一种可选的方案中，该处理器还用于：通过该收发器向该第二网络设备发送第二请求消息，该第二请求消息用于请求该第二网络设备进入低干扰模式。
在又一种可选的方案中，该处理器通过该收发器向第二网络设备发送第一请求消息之前，还用于：确定该第二网络设备的小区满足加入该协作组的条件。
在又一种可选的方案中，该处理器将该第二网络设备的小区加入该协作组之后，还用于：确定该第二网络设备的小区满足退出该协作组的条件；通过该收发器向该第二网络设备发送第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除；将该第二网络设备的小区从该协作组中删除。
在又一种可选的方案中，该处理器还用于：确定自身的小区不满足为终端提供服务的条件；通过该收发器向第三网络设备发送第四请求消息，该第四请求消息用于请求该第三网络设备作为与该终端设备通信的锚点网络设备，该第三网络设备的小区属于该协作组且满足为该终端提供服务的条件。
在又一种可选的方案中，该处理器还用于：通过该收发器向移动管理节点MME发送第五请求消息，该第五请求消息用于请求建立该MME与该协作组中各个小区的网络设备之间的针对该终端的S1连接。
在又一种可选的方案中，该第一资源集合包括用于上行传输的时频资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
在又一种可选的方案中，该第一资源集合包括用于下行传输的时频资源，该下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
需要说明的是，各个操作的实现还可以对应参照图3所示的方法实施例的相应描述。
在图18所描述的第一网络设备180中，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
请参见图19，图19是本发明实施例提供的一种第二网络设备190，该第二网络设备190包括处理器1901、存储器1902和收发器1903，所述处理器1901、存储器1902和收发器1903通过总线相互连接。
存储器1902包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器1902用于相关指令及数据。收发器1903用于接收和发送数据。
处理器1901可以是一个或多个中央处理器(central processing unit，CPU)，在处理器701是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该第二网络设备190中的处理器1901用于读取所述存储器1902中存储的程序代码，执行以下操作：
首先，通过该收发器接收第一网络设备发送的第一请求消息，该第一请求消息用于请求将该第二网络设备的小区加入协作组，该协作组包括该第一网络设备的小区；该协作组中的小区用于各分出一部分资源来组成第一资源集合，该第一资源集合所包括的资源是周期性的，并且该第一资源集合中的用于同向传输的资源占用相同频段，该第一资源集合用于该网络设备与终端设备通信；然后，通过该收发器向该第一网络设备发送针对该第一请求消息的响应消息，该响应消息用于该第一网络设备确定是否将该第二网络设备加入该协作组。
通过执行上述操作，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
在一种可选的方案中，该处理器还用于：根据该第一请求消息确定自身满足加入该协作组的条件；若满足，该响应消息用于指示该第一网络设备将该第二网络设备加入该协作组；若不满足，该响应消息用于指示该第一网络设备不将该第二网络设备加入该协作组。
在又一种可选的方案中，该处理器通过该收发器向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该处理器还用于：通过该收发器接收该第一网络设备发送的第三请求消息，该第三请求消息用于指示将该第二网络设备的小区从该协作组中删除。
在一种可选的方案中，该处理器通过该收发器向该第一网络设备发送针对该第一请求消息的响应消息之后，若该第一网络设备将该第二网络设备加入了该协作组，该处理器还用于：通过该收发器接收该第一网络设备发送的第四请求消息，该第四请求消息用于请求将该第二网络设备作为与该终端设备通信的锚点网络设备；根据该第四请求消息将自身配置为该锚点设备。
在又一种可选的方案中，该第一资源集合包括用于上行传输的时频资源；该上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
在又一种可选的方案中，该第一资源集合包括用于下行传输的时频资源，该下行传输 包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
需要说明的是，各个操作的实现还可以对应参照图3所示的方法实施例的相应描述。
在图19所描述的第二网络设备190中，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
请参见图20，图20是本发明实施例提供的一种中心单元(CU)200，该中心单元200包括处理器2001、存储器2002和收发器2003，所述处理器2001、存储器2002和收发器2003通过总线相互连接。
存储器2002包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器2002用于相关指令及数据。收发器2003用于接收和发送数据。
处理器2001可以是一个或多个中央处理器(central processing unit，CPU)，在处理器701是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该中心单元200中的处理器2001用于读取所述存储器2002中存储的程序代码，执行以下操作：
通过该收发器向多个数据单元DU发送第一消息，该第一消息包含时间戳和第二消息以便该多个DU在该时间戳指示的时间用相同的资源向终端发送该第二消息。
通过执行上述操作，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
在一种可选的方案中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
在又一种可选的方案中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
在又一种可选的方案中，该处理器还用于通过该收发器接收该多个DU发送的多个第三消息，该第三消息为该终端发送给该多个DU的消息且该多个DU接收到的该第三消息相同。
在又一种可选的方案中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
需要说明的是，各个操作的实现还可以对应参照图10所示的方法实施例的相应描述。
在图20所描述的中心单元200中，中心单元CU将多个DU发送第一消息，该第一消 息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
请参见图21，图21是本发明实施例提供的一种数据单元(DU)210，该数据单元210包括处理器2101、存储器2102和收发器2103，所述处理器2101、存储器2102和收发器2103通过总线相互连接。
存储器2102包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器2102用于相关指令及数据。收发器703用于接收和发送数据。
处理器2101可以是一个或多个中央处理器(central processing unit，CPU)，在处理器701是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
该数据单元210中的处理器2101用于读取所述存储器2102中存储的程序代码，执行以下操作：
首先，通过该收发器接收中心单元CU发送的第一消息，该第一消息包含时间戳和第二消息且该第一消息由该CU发送给该DU和其他DU，以便该DU和该其他DU在该时间戳指示的时间用相同的资源向终端设备发送该第二消息；然后，通过该收发器与该其他DU使用相同的资源向该终端设备发送该第二消息。
通过执行上述操作，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
在一种可选的方案中，该第一消息还包括调制编码方案信息、信道状态信息请求指示、跳频指示、下行控制信息格式、控制信道元素聚集级别指示、控制信道元素和该资源的频域位置信息中的至少一项。
在又一种可选的方案中，该第二消息包括下行传输块数据、上行调度指示、下行调度指示、系统消息和寻呼消息中的至少一项。
在又一种可选的方案中，该CU具备MAC层的MAC CE生成、接收、复用、解复用和调度功能的至少一项，该多个DU具备MAC层的上行HARQ和下行bundling发送功能中至少一项。
需要说明的是，各个操作的实现还可以对应参照图10所示的方法实施例的相应描述。
在图21所描述的数据单元210中，中心单元CU将多个DU发送第一消息，该第一消息中携带时间戳，这样该多个DU就可以根据该时间戳在相同的时间向该终端设备发送相同的第二消息，这样终端设备在接收该第二消息就不会受到该多个DU的相互干扰且有增强效果。
本发明实施例提供一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当该指令在第一网络设备上运行时，图3所述的方法实施例得以实现；或者当该指令在第 二网络设备上运行时，图3所示的方法实施例得以实现；或者当该指令在中心单元CU上运行时，图10所示的方法实施例得以实现；或者当该指令在数据单元DU上运行时，图10所示的方法实施例得以实现。
本发明实施例提供一种计算机程序产品，当该计算机程序产品在第一网络设备上运行时，图3所示的方法实施例得以实现；或当该计算机程序产品在第二网络设备上运行时，图3所示的方法实施例得以实现；当该计算机程序产品在中心单元CU上运行时，图10所示的方法实施例得以实现；或当该计算机程序产品在数据单元DU上运行时，图10所示的方法实施例得以实现。
本发明实施例提供一种芯片系统，该芯片系统包括至少一个处理器，存储器和接口电路，该存储器、收发器和该至少一个处理器通过线路互联，该至少一个存储器中存储有指令；该指令被该处理器执行时，图3所示的方法实施例或图10所示的方法实施例得以实现。
综上所述，该第一网络设备向该第二网络设备发送第一请求消息，以请求该第二网络设备的小区加入协作组，若该第二网络设备可以加入该协作组则该第一网络设备将该第二网络设备加入该协作组。由于加入协作组的小区都知道该第一资源集合中的资源用于供该终端设备使用，因此当该终端设备使用该第一资源集合中的资源通信时就可以减少与该终端设备之外的设备之间的干扰了。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，可通过计算机程序来指令相关的硬件来完成，该的程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可存储程序代码的介质。

Claims (30)

  1. 一种通信方法，其特征在于，包括：
    第一网络设备向第二网络设备发送第一请求消息，所述第一请求消息用于请求将所述第二网络设备的小区加入协作组，所述协作组包括所述第一网络设备的小区；所述协作组中的小区用于各分出一部分资源来组成第一资源集合，所述第一资源集合所包括的资源是周期性的，并且所述第一资源集合中的用于同向传输的资源占用相同频段，所述第一资源集合用于所述网络设备与终端设备通信；
    所述第一网络设备接收所述第二网络设备发送的针对所述第一请求消息的响应消息；
    若所述响应消息指示允许将所述第二网络设备的小区加入所述协作组，所述第一网络设备将所述第二网络设备的小区加入所述协作组。
  2. 根据权利要求1所述的方法，其特征在于，还包括：
    所述第一网络设备向所述第二网络设备发送第二请求消息，所述第二请求消息用于请求所述第二网络设备进入低干扰模式。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一网络设备向第二网络设备发送第一请求消息之前，还包括：
    所述第一网络设备确定所述第二网络设备的小区满足加入所述协作组的条件。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，所述第一网络设备将所述第二网络设备的小区加入所述协作组之后，还包括：
    所述第一网络设备确定所述第二网络设备的小区满足退出所述协作组的条件；
    所述第一网络设备向所述第二网络设备发送第三请求消息，所述第三请求消息用于指示将所述第二网络设备的小区从所述协作组中删除；
    所述第一网络设备将所述第二网络设备的小区从所述协作组中删除。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备确定自身的小区不满足为终端提供服务的条件；
    所述第一网络设备向第三网络设备发送第四请求消息，所述第四请求消息用于请求所述第三网络设备作为与所述终端设备通信的锚点网络设备，所述第三网络设备的小区属于所述协作组且满足为所述终端提供服务的条件。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备向移动管理节点MME发送第五请求消息，所述第五请求消息用于请求建立所述MME与所述协作组中各个小区的网络设备之间的针对所述终端的S1连接。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，
    所述第一资源集合包括用于上行传输的资源；
    所述上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，
    所述第一资源集合包括用于下行传输的资源，
    所述下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
  9. 一种通信方法，其特征在于，包括：
    第二网络设备接收第一网络设备发送的第一请求消息，所述第一请求消息用于请求将所述第二网络设备的小区加入协作组，所述协作组包括所述第一网络设备的小区；所述协作组中的小区用于各分出一部分资源来组成第一资源集合，所述第一资源集合所包括的资源是周期性的，并且所述第一资源集合中的用于同向传输的资源占用相同频段，所述第一资源集合用于所述网络设备与终端设备通信；
    所述第二网络设备向所述第一网络设备发送针对所述第一请求消息的响应消息，所述响应消息用于所述第一网络设备确定是否将所述第二网络设备加入所述协作组。
  10. 根据权利要求9所述的方法，其特征在于，还包括：
    所述第二网络设备根据所述第一请求消息确定自身满足加入所述协作组的条件；若满足，所述响应消息用于指示所述第一网络设备将所述第二网络设备加入所述协作组；若不满足，所述响应消息用于指示所述第一网络设备不将所述第二网络设备加入所述协作组。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第二网络设备向所述第一网络设备发送针对所述第一请求消息的响应消息之后，若所述第一网络设备将所述第二网络设备加入了所述协作组，所述方法还包括：
    所述第二网络设备接收所述第一网络设备发送的第三请求消息，所述第三请求消息用于指示将所述第二网络设备的小区从所述协作组中删除。
  12. 根据权利要求9-11任一项所述的方法，其特征在于，所述第二网络设备向所述第一网络设备发送针对所述第一请求消息的响应消息之后，若所述第一网络设备将所述第二网络设备加入了所述协作组，所述方法还包括：
    所述第二网络设备接收所述第一网络设备发送的第四请求消息，所述第四请求消息用于请求将所述第二网络设备作为与所述终端设备通信的锚点网络设备；
    所述第二网络设备根据所述第四请求消息将自身配置为所述锚点设备。
  13. 根据权利要求9-12任一项所述的方法，其特征在于，
    所述第一资源集合包括用于上行传输的时频资源；
    所述上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至 少一项的传输。
  14. 根据权利要求9-13任一项所述的方法，其特征在于，
    所述第一资源集合包括用于下行传输的时频资源，
    所述下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
  15. 一种第一网络设备，其特征在于，所述第一网络设备包括处理器、存储器和收发器，所述存储器用于存储指令，所述处理器用于调用所述存储器中的指令来执行如下操作：
    通过所述收发器向第二网络设备发送第一请求消息，所述第一请求消息用于请求将所述第二网络设备的小区加入协作组，所述协作组包括所述第一网络设备的小区；所述协作组中的小区用于各分出一部分资源来组成第一资源集合，所述第一资源集合所包括的资源是周期性的，并且所述第一资源集合中的用于同向传输的资源占用相同频段，所述第一资源集合用于所述网络设备与终端设备通信；
    通过所述收发器接收所述第二网络设备发送的针对所述第一请求消息的响应消息；
    若所述响应消息指示允许将所述第二网络设备的小区加入所述协作组，将所述第二网络设备的小区加入所述协作组。
  16. 根据权利要求15所述的第一网络设备，其特征在于，所述处理器还用于：
    通过所述收发器向所述第二网络设备发送第二请求消息，所述第二请求消息用于请求所述第二网络设备进入低干扰模式。
  17. 根据权利要求15或16所述的第一网络设备，其特征在于，所述处理器通过所述收发器向第二网络设备发送第一请求消息之前，还用于：
    确定所述第二网络设备的小区满足加入所述协作组的条件。
  18. 根据权利要求15-17任一项所述的第一网络设备，其特征在于，所述处理器将所述第二网络设备的小区加入所述协作组之后，还用于：
    确定所述第二网络设备的小区满足退出所述协作组的条件；
    通过所述收发器向所述第二网络设备发送第三请求消息，所述第三请求消息用于指示将所述第二网络设备的小区从所述协作组中删除；
    将所述第二网络设备的小区从所述协作组中删除。
  19. 根据权利要求15-18任一项所述的第一网络设备，其特征在于，所述处理器还用于：
    确定自身的小区不满足为终端提供服务的条件；
    通过所述收发器向第三网络设备发送第四请求消息，所述第四请求消息用于请求所述第三网络设备作为与所述终端设备通信的锚点网络设备，所述第三网络设备的小区属于所 述协作组且满足为所述终端提供服务的条件。
  20. 根据权利要求15-19任一项所述的第一网络设备，其特征在于，所述处理器还用于：
    通过所述收发器向移动管理节点MME发送第五请求消息，所述第五请求消息用于请求建立所述MME与所述协作组中各个小区的网络设备之间的针对所述终端的S1连接。
  21. 根据权利要求15-20任一项所述的第一网络设备，其特征在于，
    所述第一资源集合包括用于上行传输的时频资源；
    所述上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
  22. 根据权利要求15-21任一项所述的第一网络设备，其特征在于，
    所述第一资源集合包括用于下行传输的时频资源，
    所述下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
  23. 一种第二网络设备，其特征在于，所述第二网络设备包括处理器、存储器和收发器，所述存储器用于存储指令，所述处理器用于调用所述存储器中的指令来执行如下操作：
    通过所述收发器接收第一网络设备发送的第一请求消息，所述第一请求消息用于请求将所述第二网络设备的小区加入协作组，所述协作组包括所述第一网络设备的小区；所述协作组中的小区用于各分出一部分资源来组成第一资源集合，所述第一资源集合所包括的资源是周期性的，并且所述第一资源集合中的用于同向传输的资源占用相同频段，所述第一资源集合用于所述网络设备与终端设备通信；
    通过所述收发器向所述第一网络设备发送针对所述第一请求消息的响应消息，所述响应消息用于所述第一网络设备确定是否将所述第二网络设备加入所述协作组。
  24. 根据权利要求23所述的第二网络设备，其特征在于，所述处理器还用于：
    根据所述第一请求消息确定自身满足加入所述协作组的条件；若满足，所述响应消息用于指示所述第一网络设备将所述第二网络设备加入所述协作组；若不满足，所述响应消息用于指示所述第一网络设备不将所述第二网络设备加入所述协作组。
  25. 根据权利要求23或24所述的第二网络设备，其特征在于，所述处理器通过所述收发器向所述第一网络设备发送针对所述第一请求消息的响应消息之后，若所述第一网络设备将所述第二网络设备加入了所述协作组，所述处理器还用于：
    通过所述收发器接收所述第一网络设备发送的第三请求消息，所述第三请求消息用于指示将所述第二网络设备的小区从所述协作组中删除。
  26. 根据权利要求23-25任一项所述的第二网络设备，其特征在于，所述处理器通过所述收发器向所述第一网络设备发送针对所述第一请求消息的响应消息之后，若所述第一网络设备将所述第二网络设备加入了所述协作组，所述处理器还用于：
    通过所述收发器接收所述第一网络设备发送的第四请求消息，所述第四请求消息用于请求将所述第二网络设备作为与所述终端设备通信的锚点网络设备；
    根据所述第四请求消息将自身配置为所述锚点设备。
  27. 根据权利要求23-26任一项所述的第二网络设备，其特征在于，
    所述第一资源集合包括用于上行传输的时频资源；
    所述上行传输包括数据信道的传输，并包括参考信号、随机接入信道和控制信道中至少一项的传输。
  28. 根据权利要求23-27任一项所述的第二网络设备，其特征在于，
    所述第一资源集合包括用于下行传输的时频资源，
    所述下行传输包括数据信道的传输，并包括同步信号、用于测量或解调的参考信号和控制信道中至少一项的传输。
  29. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令在第一网络设备上运行时，权利要求1-8任一所述的方法得以实现；或者当所述指令在第二网络设备上运行时，权利要求9-14任一项所述的方法得以实现。
  30. 一种计算机程序产品，其特征在于，当所述计算机程序产品在第一网络设备上运行时，权利要求1-8任一项所述的方法得以实现；或当所述计算机程序产品在第二网络设备上运行时，权利要求9-14任一项所述的方法得以实现。
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