WO2018045680A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2018045680A1
WO2018045680A1 PCT/CN2016/112780 CN2016112780W WO2018045680A1 WO 2018045680 A1 WO2018045680 A1 WO 2018045680A1 CN 2016112780 W CN2016112780 W CN 2016112780W WO 2018045680 A1 WO2018045680 A1 WO 2018045680A1
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Prior art keywords
primary
cell
cell group
group
serving
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PCT/CN2016/112780
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English (en)
French (fr)
Inventor
李明菊
朱亚军
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2018045680A1 publication Critical patent/WO2018045680A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method and a communication device.
  • 3GPP proposes the concept of LAA (LTE Assisted Access) for using unlicensed spectrum with the help of LTE licensed spectrum.
  • LAA LTE Assisted Access
  • the LAA scheme is based on carrier aggregation function to deploy LTE system in unlicensed frequency band.
  • the unlicensed spectrum can work in two ways.
  • One is the Supplemental Downlink (SDL), that is, only the downlink transmission subframe, and the other is the TDD mode, which includes both the downlink subframe and the uplink subframe.
  • SDL Supplemental Downlink
  • TDD mode which includes both the downlink subframe and the uplink subframe.
  • This situation can only be supplemented by the carrier aggregation technology.
  • the TDD mode can also be used by DC (Dual Connectivity) or independently.
  • the existing scheme only discusses various problems when the unlicensed spectrum and the LTE licensed spectrum work in a carrier aggregation manner, and does not discuss the problem when working in a dual connectivity manner.
  • the connection between the base station where the unlicensed spectrum is deployed and the base station where the licensed spectrum is located is not ideal, and only the dual connection method can be used.
  • the SeNB (Secondary eNB) needs to have a PSCell (Primary Secondary Cell) to provide some functions of the PCell (Primary Cell), such as MIB (Master Information Block, Transmission of the main information block), control of the PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), control of the random access procedure, and RLM (Radio Link Monitoring) Road monitoring) control, etc.
  • PSCell Primary Secondary Cell
  • MIB Master Information Block, Transmission of the main information block
  • control of the PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • control of the random access procedure
  • RLM Radio Link Monitoring
  • PCells working on unlicensed carriers can also be deployed, that is, cells on the unlicensed spectrum operate independently (ie, standalone) to implement communication control.
  • the present invention is based on at least one of the above technical problems, and proposes a new communication scheme, which can improve signal transmission probability on a primary cell group or a primary secondary cell group on an unlicensed frequency band, thereby ensuring a primary cell group.
  • the group or primary secondary cell group can send and receive the necessary information and data in a timely and efficient manner, satisfying the communication delay and efficiency requirements.
  • a communication method comprising the steps of: configuring at least one serving cell to each terminal, each of the serving cells operating on an unlicensed carrier; Selecting at least one of the at least one serving cell as the primary cell or the primary secondary cell of each terminal to form a primary cell group or a primary secondary cell group of each terminal; through the primary cell group or A primary secondary cell group communicates with each of the terminals.
  • At least one primary cell as each terminal is selected from at least one serving cell operating on an unlicensed frequency band to form a primary cell group of each terminal, and further through the primary cell group
  • the unlicensed spectrum works independently and the communication scenario of the primary cell is deployed on the unlicensed frequency band. Since the channel cannot be continuously occupied on the unlicensed frequency band, there is a channel detection mechanism, and therefore, the primary cell The group communicates with each terminal, which can improve the signal transmission probability on the primary cell group of each terminal, thereby ensuring that the primary cell group can timely transmit and receive necessary information and data, and satisfy the communication. Delay and efficiency requirements.
  • the present invention proposes the following three schemes for how to configure the at least one serving cell and how to select and form a primary cell group or a primary secondary cell group of each terminal:
  • the primary serving cell of the primary base station operating on the licensed frequency band configures the at least one serving cell on the secondary base station to each of the terminals, wherein the primary serving cell selects at least one of the at least one serving cell as Each of the terminals is a primary secondary cell on the secondary base station to form a primary secondary cell group of each terminal on the secondary base station.
  • the solution 1 is applicable to a scenario in which the unlicensed frequency band and the licensed frequency band communicate in a dual connectivity manner, that is, the primary serving cell of the primary base station operating on the licensed frequency band configures at least one serving cell on the secondary base station to each terminal, and The primary serving cell selects and forms a primary secondary cell group for each terminal on the secondary base station.
  • the primary serving cell of the primary base station operating on the licensed frequency band configures, for each of the terminals, a primary secondary serving cell operating on the unlicensed frequency band on the secondary base station, and the primary secondary serving serving cell is in the Configuring, on the secondary base station, 0 or at least one cell operating on the unlicensed frequency band, where the 0 or at least one cell and the primary secondary serving cell form the at least one serving cell, where the primary secondary serving cell At least one of the at least one serving cell is selected as the primary secondary cell of the secondary terminal on the secondary base station to form a primary secondary cell group of each terminal on the secondary base station.
  • the second scheme is also applicable to the scenario where the unlicensed frequency band and the licensed frequency band communicate in a dual-connection manner, that is, the primary serving cell of the primary base station working on the licensed frequency band is configured to configure the primary secondary serving cell on the secondary base station to each terminal.
  • the primary auxiliary serving cell configures, on each of the terminals, 0 or at least one cell working on the unlicensed frequency band, and the 0 or at least one cell and the primary auxiliary serving cell jointly form the at least one serving cell.
  • the primary secondary serving cell then selects and composes the primary secondary cell group for each terminal on the secondary base station.
  • configuration signaling for configuring the 0 or at least one cell to each terminal is sent by one or more of the primary secondary serving cells .
  • the configuration signaling may be RRC (Radio Resource Control) signaling.
  • the primary serving cell of the primary base station operating on the unlicensed frequency band configures, on each of the primary base stations, 0 or at least one cell operating on the unlicensed frequency band, the 0 or at least one cell and the The primary serving cell constitutes the at least one serving cell, wherein the primary serving cell selects at least one of the at least one serving cell as a primary cell of each terminal to form a master of each terminal Community group.
  • the third scheme is applicable to the communication scenario in which the unlicensed frequency band works independently and the primary cell is deployed on the unlicensed frequency band, that is, the primary serving cell of the primary base station on the unlicensed frequency band is configured to work on the primary base station in the unlicensed frequency band.
  • the 0 or at least one cell and the primary serving cell jointly form the at least one serving cell, and then the primary serving cell selects and constitutes a primary cell group of each terminal.
  • all cells in the primary cell group or the primary secondary cell group are capable of transmitting a primary information block.
  • any one of the primary cell group or the primary secondary cell group can only be scheduled by the primary cell group or other cells in the primary secondary cell group. And all other cells belonging to one base station with any one of the cells can be scheduled across carriers.
  • the cells in the primary cell group or the primary secondary cell group cannot be scheduled by the primary cell group or the cells other than the primary secondary cell group.
  • the communication method further includes: transmitting, by using the one or more cells in the primary cell group or the primary secondary cell group, transmission of PDCCH and/or PUCCH transmission content. .
  • the communication method further includes: when the user equipment sends a random access preamble on the multiple cells in the primary cell group or the primary secondary cell group (ie, In the case of a random access Preamble (RA Preamble), if the multiple cells belong to the same Timing Advance Group (TAG), the random access response is sent only on one of the multiple cells. .
  • RA Preamble Random access Preamble
  • TAG Timing Advance Group
  • the communication method further includes: when the radio link monitoring result of all the cells in the primary cell group or the primary secondary cell group of any terminal is a radio link failure And determining a radio link failure (RLF) of the primary cell or the primary secondary cell of the any terminal.
  • RLF radio link failure
  • the step of selecting at least one of the at least one serving cell as the primary cell or the primary secondary cell of each terminal specifically, according to the at least one serving cell RSRP (Reference Signal Receiving Power)/RSRQ (Reference Signal Receiving Quality) in descending order and/or sequence of channel occupancy of the at least one serving cell from low to high
  • the technical solution can ensure that the serving cell with better communication environment is selected as the primary cell or the primary secondary cell of the terminal, thereby meeting the delay and efficiency requirements of the communication.
  • the channel occupancy rate is the Channel Occupancy Ratio
  • the channel occupancy rate is a ratio
  • the denominator is the number of power samples on the carrier
  • the numerator is the number of times the power sample value is higher than the LBT channel detection threshold, that is, the detected channel is detected. The number of times the device is occupied and cannot be used by itself.
  • the communication method further includes: the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to a third threshold and/or When the channel occupancy rate is greater than or equal to the fourth threshold, the any cell is removed from the primary cell group or the primary secondary cell group.
  • the communication method further includes: RSRP/RSRQ of the other serving cell other than the primary cell group or the primary secondary cell group is greater than the primary cell group or a fifth threshold of RSRP/RSRQ high of any one of the primary secondary cell groups, and/or a channel occupancy ratio of other serving cells other than the primary cell group or the primary secondary cell group is greater than the primary cell
  • the channel occupancy rate of any one of the group or the primary supplementary cell group is lower than the sixth threshold, the any cell is replaced by the other serving cell.
  • the communication method further includes: the RSRP/RSRQ of the other serving cell other than the primary cell group or the primary secondary cell group is greater than or equal to a seventh threshold and/or Or the channel occupancy rate of the other serving cell is less than or equal to an eighth threshold, and the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to a ninth threshold and/or the When the channel occupancy rate of any cell is greater than or equal to the tenth threshold, the any cell is replaced by the other serving cell.
  • the cell used for uplink transmission in the primary cell group or the primary secondary cell group is the same as or different from the cell used for downlink transmission.
  • a communication apparatus comprising: a configuration unit configured to configure at least one serving cell to each terminal, each of the serving cells operating on an unlicensed carrier; Setting to select at least one of the at least one serving cell as a primary cell or a primary secondary cell of each terminal to form a primary cell group or a primary secondary cell group of each terminal; a communication control unit And configured to communicate with each of the terminals by the primary cell group or the primary secondary cell group.
  • At least one primary cell as each terminal is selected from at least one serving cell operating on an unlicensed frequency band to form a primary cell group of each terminal, and further through the primary cell group
  • the unlicensed frequency band works independently and the communication scenario of the primary cell is deployed on the unlicensed frequency band. Since the channel cannot be continuously occupied on the unlicensed frequency band, there is a channel detection mechanism, so The group communicates with each terminal, which can improve the signal transmission probability on the primary cell group of each terminal, thereby ensuring that the primary cell group can timely transmit and receive necessary information and data, and satisfy the communication. Delay and efficiency requirements.
  • the present invention proposes the following three schemes for how the configuration unit configures the at least one serving cell and how the selection unit selects and forms the primary cell group or the primary secondary cell group of each terminal:
  • the configuration unit is specifically configured to configure the at least one serving cell on the secondary base station by using the primary serving cell of the primary base station that operates on the licensed frequency band; the selecting unit is specifically configured to The primary serving cell selects at least one of the at least one serving cell as the primary secondary cell of the secondary terminal on the secondary base station to form a primary secondary cell group of each terminal on the secondary base station. group.
  • the solution 1 is applicable to a scenario in which the unlicensed frequency band and the licensed frequency band communicate in a dual connectivity manner, that is, the primary serving cell of the primary base station operating on the licensed frequency band configures at least one serving cell on the secondary base station to each terminal, and The primary serving cell selects and forms a primary secondary cell group for each terminal on the secondary base station.
  • the configuration unit is specifically configured to: configure, by the primary serving cell of the primary base station working on the licensed frequency band, the primary secondary serving cell operating on the unlicensed frequency band to the secondary base station, and the primary secondary serving cell Configuring, on each of the secondary base stations, 0 or at least one cell working on an unlicensed frequency band, where the 0 or at least one cell and the primary secondary serving cell form the at least one serving cell;
  • the selecting unit is specifically configured to: select, by using the primary secondary serving cell, at least one of the at least one serving cell as a primary secondary cell of each terminal on the secondary base station, to form each of the The primary secondary cell group of the terminal on the secondary base station.
  • the second scheme is also applicable to the scenario where the unlicensed frequency band and the licensed frequency band communicate in a dual-connection manner, that is, the primary serving cell of the primary base station working on the licensed frequency band is configured to configure the primary secondary serving cell on the secondary base station to each terminal.
  • the primary auxiliary serving cell configures, on each of the terminals, 0 or at least one cell working on the unlicensed frequency band, and the 0 or at least one cell and the primary auxiliary serving cell jointly form the at least one serving cell.
  • the primary secondary serving cell then selects and composes the primary secondary cell group for each terminal on the secondary base station.
  • configuration signaling for configuring the 0 or at least one cell to each terminal is sent by one or more of the primary secondary serving cells .
  • the configuration signaling may be RRC signaling.
  • the configuration unit is specifically configured to: configure, by the primary serving cell of the primary base station operating on the unlicensed frequency band, 0 or at least one cell working on the unlicensed frequency band on the primary base station to each terminal, Depicting 0 or at least one cell and the primary serving cell to form the at least one serving cell; the selecting unit is specifically configured to: select, by the primary serving cell, at least one of the at least one serving cell as the The primary cell of each terminal to form a primary cell group of each terminal.
  • the third scheme is applicable to the unlicensed frequency band working independently, and the communication scenario of the primary cell is deployed on the unlicensed frequency band, that is, the primary serving cell of the primary base station on the unlicensed frequency band is configured to work on the primary base station in the unlicensed frequency band.
  • the 0 or at least one cell and the primary serving cell jointly form the at least one serving cell, and then the primary serving cell selects and constitutes a primary cell group of each terminal.
  • all cells in the primary cell group or the primary secondary cell group are capable of transmitting a primary information block.
  • any one of the primary cell group or the primary secondary cell group can only be scheduled by the primary cell group or other cells in the primary secondary cell group. And all other cells belonging to one base station with any one of the cells can be scheduled across carriers.
  • the cells in the primary cell group or the primary secondary cell group cannot be scheduled by the primary cell group or the cells other than the primary secondary cell group.
  • the communication control unit is configured to: perform PDCCH and/or PUCCH transmission content by using one or more cells in the primary cell group or the primary secondary cell group. transmission.
  • the communication control unit is specifically configured to: when the user equipment sends a random access preamble on multiple cells in the primary cell group or the primary secondary cell group And if the multiple cells belong to the same timing advance group, the random access response is sent only on one of the multiple cells.
  • the communication control unit is specifically configured to: the radio link monitoring result of all the cells in the primary cell group or the primary secondary cell group of any terminal is a radio link failure. At the time, it is determined that the radio link of the primary cell or the primary secondary cell of any of the terminals fails.
  • the selecting unit is specifically configured to: according to an order of RSRP/RSRQ of the at least one serving cell from high to low and/or a channel occupancy of the at least one serving cell, In a low-to-high order, at least one serving cell whose RSRP/RSRQ is greater than or equal to the first threshold and/or the channel occupancy is less than or equal to the second threshold is selected as the primary cell or the primary secondary cell of each terminal.
  • the technical solution can ensure that the serving cell with better communication environment is selected as the primary cell or the primary secondary cell of the terminal, thereby meeting the delay and efficiency requirements of the communication.
  • the channel occupancy rate is the Channel Occupancy Ratio
  • the channel occupancy rate is a ratio
  • the denominator is the number of power samples on the carrier
  • the numerator is the number of times the power sample value is higher than the LBT channel detection threshold, that is, the detected channel is detected. The number of times the device is occupied and cannot be used by itself.
  • the communication device further includes: a first group management unit, configured to RSRP/RSRQ in any one of the primary cell group or the primary secondary cell group
  • a first group management unit configured to RSRP/RSRQ in any one of the primary cell group or the primary secondary cell group
  • the communication device further includes: a second group management unit, configured to RSRP/ of other serving cells except the primary cell group or the primary secondary cell group.
  • the RSRQ is higher than the RSRP/RSRQ of the primary cell group or the primary secondary cell group by a fifth threshold, and/or other serving cells other than the primary cell group or the primary secondary cell group
  • the channel occupancy ratio is lower than the channel occupancy rate of any one of the primary cell group or the primary secondary cell group by a sixth threshold, the any one of the serving cells is replaced by the other serving cell.
  • the communication device further includes: a third group management unit, configured to RSRP/ of other serving cells except the primary cell group or the primary secondary cell group.
  • the RSRQ is greater than or equal to the seventh threshold and/or the channel occupancy of the other serving cell is less than or equal to the eighth threshold, and the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or
  • the ninth threshold is equal to and/or the channel occupancy of the any cell is greater than or equal to the tenth threshold, the any cell is replaced by the other serving cell.
  • the cell used for uplink transmission in the primary cell group or the primary secondary cell group is the same as or different from the cell used for downlink transmission.
  • a communication method comprising: determining, by a terminal, a primary cell group or a primary secondary cell group operating on an unlicensed carrier; and the primary cell group or a primary secondary cell group The cells in the group perform communication; wherein the primary cell group or the primary secondary cell group is composed of at least one serving cell operating on an unlicensed carrier, and each of the serving cells operates in one On an unlicensed carrier.
  • the unlicensed frequency band works independently, and the communication scenario of the primary cell is deployed on the unlicensed frequency band.
  • the channel cannot be continuously occupied on the licensed frequency band, that is, the channel detection mechanism exists. Therefore, by communicating with the cell in the primary cell group, the terminal can improve the signaling or data transmission probability between the primary cell group and the terminal, thereby ensuring the transmission probability.
  • the primary cell group can transmit and receive the necessary signaling or data in a timely and efficient manner, which satisfies the communication delay and efficiency requirements.
  • a primary secondary cell group When a primary secondary cell group is selected from at least one serving cell operating in an unlicensed frequency band, a dual connectivity communication scenario is performed on the unlicensed frequency band and the licensed frequency band, and the channel cannot be continuously occupied on the unlicensed frequency band. That is, the channel detection mechanism exists. Therefore, by communicating with the cells in the primary secondary cell group, the terminal can improve the signaling or data transmission probability between the primary secondary cell group and the terminal, thereby ensuring that the primary secondary cell group can The necessary signaling or data is sent and received in a timely and efficient manner, meeting the delay and efficiency requirements of the communication.
  • the determining, by the terminal, the primary secondary cell group working on the unlicensed carrier may be determined by receiving the notification signaling sent by the primary secondary cell of the primary base station or the primary secondary cell of the secondary base station on the unlicensed frequency band. .
  • a communication apparatus comprising: a determining unit configured to determine a primary cell group or a primary secondary cell group operating on an unlicensed carrier, wherein the primary cell group Or the primary secondary cell group is formed by selecting at least one serving cell operating on the unlicensed carrier, each of the serving cells working on an unlicensed carrier; and the communication unit being set to be opposite to the primary cell The cells in the group or primary secondary cell group communicate.
  • the unlicensed frequency band works independently, and the communication scenario of the primary cell is deployed on the unlicensed frequency band.
  • the channel cannot be continuously occupied on the licensed frequency band, that is, the channel detection mechanism exists. Therefore, by communicating with the cell in the primary cell group, the terminal can improve the signaling or data transmission probability between the primary cell group and the terminal, thereby ensuring the transmission probability.
  • the primary cell group can transmit and receive the necessary signaling or data in a timely and efficient manner, which satisfies the communication delay and efficiency requirements.
  • a primary secondary cell group When a primary secondary cell group is selected from at least one serving cell operating in an unlicensed frequency band, a dual connectivity communication scenario is performed on the unlicensed frequency band and the licensed frequency band, and the channel cannot be continuously occupied on the unlicensed frequency band. That is, the channel detection mechanism exists. Therefore, by communicating with the cells in the primary secondary cell group, the terminal can improve the signaling or data transmission probability between the primary secondary cell group and the terminal, thereby ensuring that the primary secondary cell group can The necessary signaling or data is sent and received in a timely and efficient manner, meeting the delay and efficiency requirements of the communication.
  • the determining unit determines that the primary secondary cell group operating on the unlicensed carrier may be determined by receiving notification signaling sent by the primary secondary cell of the primary base station or the primary secondary cell of the secondary base station on the unlicensed frequency band on the licensed frequency band. of.
  • the signal transmission probability on the primary cell group or the primary secondary cell group on the unlicensed frequency band can be improved, thereby ensuring that the primary cell group or the primary secondary cell group can transmit and receive the necessary timely and effective.
  • Information and data meet the latency and efficiency requirements of communications.
  • FIG. 1 shows a schematic flow chart of a communication method according to a first embodiment of the present invention
  • Figure 2 shows a schematic block diagram of a communication device in accordance with a first embodiment of the present invention
  • Figure 3 shows a schematic block diagram of a communication device in accordance with a second embodiment of the present invention
  • Figure 4 shows a schematic block diagram of a communication device in accordance with a third embodiment of the present invention.
  • Figure 5 is a schematic block diagram showing a communication device in accordance with a fourth embodiment of the present invention.
  • Figure 6 shows a schematic flow chart of a communication method in accordance with a second embodiment of the present invention.
  • Figure 7 shows a schematic block diagram of a communication device in accordance with a fifth embodiment of the present invention.
  • Figure 8 shows a schematic block diagram of a communication device in accordance with a sixth embodiment of the present invention.
  • Fig. 9 shows a schematic block diagram of a communication device in accordance with a seventh embodiment of the present invention.
  • Fig. 1 shows a schematic flow chart of a communication method according to a first embodiment of the present invention.
  • a communication method includes the following steps:
  • Step S10 Configure at least one serving cell to each terminal, and each of the serving cells operates on an unlicensed carrier.
  • Step S12 Select at least one primary cell or primary secondary cell as the each terminal from the at least one serving cell to form a primary cell group or a primary secondary cell group of each terminal.
  • the present invention proposes the following three schemes:
  • the primary serving cell of the primary base station operating on the licensed frequency band configures the at least one serving cell on the secondary base station to each of the terminals, wherein the primary serving cell selects at least one of the at least one serving cell as Each of the terminals is a primary secondary cell on the secondary base station to form a primary secondary cell group of each terminal on the secondary base station.
  • the solution 1 is applicable to a scenario in which the unlicensed frequency band and the licensed frequency band communicate in a dual connectivity manner, that is, the primary serving cell of the primary base station operating on the licensed frequency band configures at least one serving cell on the secondary base station to each terminal, and The primary serving cell selects and forms a primary secondary cell group for each terminal on the secondary base station.
  • the primary serving cell of the primary base station operating on the licensed frequency band configures, for each of the terminals, a primary secondary serving cell operating on the unlicensed frequency band on the secondary base station, and the primary secondary serving serving cell is in the Configuring, on the secondary base station, 0 or at least one cell operating on the unlicensed frequency band, where the 0 or at least one cell and the primary secondary serving cell form the at least one serving cell, where the primary secondary serving cell At least one of the at least one serving cell is selected as the primary secondary cell of the secondary terminal on the secondary base station to form a primary secondary cell group of each terminal on the secondary base station.
  • the second scheme is also applicable to the scenario where the unlicensed frequency band and the licensed frequency band communicate in a dual-connection manner, that is, the primary serving cell of the primary base station working on the licensed frequency band is configured to configure the primary secondary serving cell on the secondary base station to each terminal.
  • the primary auxiliary serving cell configures, on each of the terminals, 0 or at least one cell working on the unlicensed frequency band, and the 0 or at least one cell and the primary auxiliary serving cell jointly form the at least one serving cell.
  • the primary secondary serving cell then selects and composes the primary secondary cell group for each terminal on the secondary base station.
  • configuration signaling for configuring the 0 or at least one cell to each terminal is sent by one or more of the primary secondary serving cells .
  • the configuration signaling may be RRC signaling.
  • the primary serving cell of the primary base station operating on the unlicensed frequency band configures, on each of the primary base stations, 0 or at least one cell operating on the unlicensed frequency band, the 0 or at least one cell and the The primary serving cell constitutes the at least one serving cell, wherein the primary serving cell selects at least one of the at least one serving cell as a primary cell of each terminal to form a master of each terminal Community group.
  • the third scheme is applicable to the communication scenario in which the unlicensed frequency band works independently and the primary cell is deployed on the unlicensed frequency band, that is, the primary serving cell of the primary base station on the unlicensed frequency band is configured to work on the primary base station in the unlicensed frequency band.
  • the 0 or at least one cell and the primary serving cell jointly form the at least one serving cell, and then the primary serving cell selects and constitutes a primary cell group of each terminal.
  • the communication method shown in FIG. 1 further includes:
  • Step S14 communicating with each of the terminals by the primary cell group or the primary secondary cell group.
  • the primary cell group or all cells in the primary secondary cell group are capable of transmitting primary information blocks.
  • the primary information block is sent by a cell in the primary cell group or the primary secondary cell group that detects the downlink channel idle.
  • the primary information block may be sent by one or more of the multiple cells at the same time.
  • the multiple cells may be controlled to send the primary information block at different time points.
  • the transmission period of the main information block for example, the main information block is transmitted in a period of 5 ms or 10 ms.
  • the transmission duration of the main information block can be set to be longer than or equal to the duration occupied by 1 symbol (Symbol) and less than or equal to the duration occupied by 4 symbols.
  • Any one of the primary cell group or the primary secondary cell group can only be scheduled by the primary cell group or other cells in the primary secondary cell group, and can be cross-carrier scheduled with any of the above.
  • a cell belongs to all other cells belonging to one base station.
  • the cells in the primary cell group or the primary secondary cell group cannot be scheduled by the primary cell group or the cells other than the primary secondary cell group.
  • the radio link monitoring result of all the cells in the primary cell group or the primary secondary cell group of any terminal is a radio link failure, determining the wireless chain of the primary cell or the primary secondary cell of any one of the terminals The road failed.
  • step S12 shown in FIG. 1 specifically includes: according to the order of RSRP/RSRQ of the at least one serving cell from high to low and/or channel occupancy of the at least one serving cell. From the low to the high order, at least one serving cell whose RSRP/RSRQ is greater than or equal to the first threshold and/or the channel occupancy is less than or equal to the second threshold is selected as the primary cell or the primary secondary cell of each terminal.
  • the technical solution can ensure that the serving cell with better communication environment is selected as the primary cell or the primary secondary cell of the terminal, thereby meeting the delay and efficiency requirements of the communication.
  • the channel occupancy rate is the Channel Occupancy Ratio
  • the channel occupancy rate is a ratio
  • the denominator is the number of power samples on the carrier
  • the numerator is the number of times the power sample value is higher than the LBT channel detection threshold, that is, the detected channel is detected. The number of times the device is occupied and cannot be used by itself.
  • the communication method further includes: the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to a third threshold and/or the channel occupancy is greater than or equal to a fourth. At the threshold, any one of the cells is removed from the primary cell group or the primary secondary cell group.
  • the communication method further includes: RSRP/RSRQ of the other serving cell other than the primary cell group or the primary secondary cell group is greater than any of the primary cell group or the primary secondary cell group
  • the RSRP/RSRQ high fifth threshold of a cell, and/or the channel occupancy rate of the other serving cell other than the primary cell group or the primary secondary cell group is greater than the primary cell group or the primary secondary cell group
  • the channel occupancy rate of any of the cells is lower than the sixth threshold, the any cell is replaced by the other serving cell.
  • the communication method further includes: the RSRP/RSRQ of the other serving cell other than the primary cell group or the primary secondary cell group is greater than or equal to a seventh threshold and/or a channel of the other serving cell The occupancy rate is less than or equal to the eighth threshold, and the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to a ninth threshold and/or the channel occupancy of the any cell is greater than Or equal to the tenth threshold, replacing any of the cells by the other serving cell.
  • the cell used for uplink transmission in the primary cell group or the primary secondary cell group is the same as or different from the cell used for downlink transmission.
  • the channel cannot be continuously occupied on the unlicensed frequency band, that is, there is a channel detection mechanism, by communicating with each terminal by the primary cell group or the primary secondary cell group, the channel can be improved.
  • the probability of signal transmission on the primary cell group or the primary secondary cell group of each terminal thereby ensuring that the primary cell group or the primary secondary cell group can timely transmit and receive necessary information and data, and satisfy the communication. Delay and efficiency requirements.
  • Fig. 2 shows a schematic block diagram of a communication device in accordance with a first embodiment of the present invention.
  • a communication device 200 includes a configuration unit 202, a selection unit 204, and a communication control unit 206.
  • the configuration unit 202 is configured to configure at least one serving cell to each terminal, each of the serving cells working on an unlicensed carrier; and the selecting unit 204 is configured to select at least one of the at least one serving cell as the Describe a primary cell or a primary secondary cell of each terminal to form a primary cell group or a primary secondary cell group of each terminal; the communication control unit 206 is configured to pass the primary cell group or the primary secondary cell group Communicate with each of the terminals.
  • At least one primary cell as each terminal is selected from at least one serving cell operating on an unlicensed frequency band to form a primary cell group of each terminal, and further through the primary cell group
  • the unlicensed frequency band works independently and the communication scenario of the primary cell is deployed on the unlicensed frequency band. Since the channel cannot be continuously occupied on the unlicensed frequency band, there is a channel detection mechanism, so The group communicates with each terminal, which can improve the signal transmission probability on the primary cell group of each terminal, thereby ensuring that the primary cell group can timely transmit and receive necessary information and data, and satisfy the communication. Delay and efficiency requirements.
  • the present invention proposes the following three schemes for how the configuration unit configures the at least one serving cell and how the selection unit selects and forms the primary cell group or the primary secondary cell group of each terminal:
  • the configuration unit 202 is specifically configured to configure the at least one serving cell on the secondary base station by using the primary serving cell of the primary base station that operates on the licensed frequency band; the selecting unit 204 is specifically configured to pass The primary serving cell selects at least one of the at least one serving cell as the primary secondary cell of each terminal on the secondary base station to form a primary auxiliary of each terminal on the secondary base station. Community group.
  • the solution 1 is applicable to a scenario in which the unlicensed frequency band and the licensed frequency band communicate in a dual connectivity manner, that is, the primary serving cell of the primary base station operating on the licensed frequency band configures at least one serving cell on the secondary base station to each terminal, and The primary serving cell selects and forms a primary secondary cell group for each terminal on the secondary base station.
  • the configuration unit 202 is specifically configured to: configure, by the primary serving cell of the primary base station working on the licensed frequency band, the primary secondary serving cell working on the unlicensed frequency band to the secondary base station, the primary auxiliary service The cell configures, on the secondary base station, 0 or at least one cell working on the unlicensed frequency band, and the 0 or at least one cell and the primary secondary serving cell form the at least one serving cell
  • the selecting unit 204 is specifically configured to: select, by the primary secondary serving cell, at least one of the at least one serving cell as the primary secondary cell of each terminal on the secondary base station, to form the A primary secondary cell group of each terminal on the secondary base station.
  • the second scheme is also applicable to the scenario where the unlicensed frequency band and the licensed frequency band communicate in a dual-connection manner, that is, the primary serving cell of the primary base station working on the licensed frequency band is configured to configure the primary secondary serving cell on the secondary base station to each terminal.
  • the primary auxiliary serving cell configures, on each of the terminals, 0 or at least one cell working on the unlicensed frequency band, and the 0 or at least one cell and the primary auxiliary serving cell jointly form the at least one serving cell.
  • the primary secondary serving cell then selects and composes the primary secondary cell group for each terminal on the secondary base station.
  • configuration signaling for configuring the 0 or at least one cell to each terminal is sent by one or more of the primary secondary serving cells .
  • the configuration signaling may be RRC signaling.
  • the configuration unit 202 is specifically configured to: configure, by the primary serving cell of the primary base station operating on the unlicensed frequency band, 0 or at least one cell working on the unlicensed frequency band on the primary base station to each terminal, The 0 or at least one cell and the primary serving cell form the at least one serving cell; the selecting unit 204 is specifically configured to: select at least one of the at least one serving cell by using the primary serving cell The primary cell of each terminal is configured to form a primary cell group of each terminal.
  • the third scheme is applicable to the unlicensed frequency band working independently, and the communication scenario of the primary cell is deployed on the unlicensed frequency band, that is, the primary serving cell of the primary base station on the unlicensed frequency band is configured to work on the primary base station in the unlicensed frequency band.
  • the 0 or at least one cell and the primary serving cell jointly form the at least one serving cell, and then the primary serving cell selects and constitutes a primary cell group of each terminal.
  • all cells in the primary cell group or the primary secondary cell group are capable of transmitting a primary information block.
  • any one of the primary cell group or the primary secondary cell group can only be scheduled by the primary cell group or other cells in the primary secondary cell group. And all other cells belonging to one base station with any one of the cells can be scheduled across carriers.
  • the cells in the primary cell group or the primary secondary cell group cannot be scheduled by the primary cell group or the cells other than the primary secondary cell group.
  • the communication control unit 206 is specifically configured to: perform PDCCH and/or PUCCH transmission by using one or more cells in the primary cell group or the primary secondary cell group. Transmission.
  • the communication control unit 206 is specifically configured to: when the user equipment sends a random access preamble on multiple cells in the primary cell group or the primary secondary cell group And if the multiple cells belong to the same timing advance group, the random access response is sent only on one of the multiple cells.
  • the communication control unit 206 is specifically configured to: the radio link monitoring result of all the cells in the primary cell group or the primary secondary cell group of any terminal is a wireless link. Upon failure, it is determined that the radio link of the primary cell or the primary secondary cell of any of the terminals fails.
  • the selecting unit 204 is specifically configured to: according to the order of the RSRP/RSRQ of the at least one serving cell from high to low and/or the channel occupancy of the at least one serving cell. From the low to the high order, at least one serving cell whose RSRP/RSRQ is greater than or equal to the first threshold and/or the channel occupancy is less than or equal to the second threshold is selected as the primary cell or the primary secondary cell of each terminal.
  • the technical solution can ensure that the serving cell with better communication environment is selected as the primary cell or the primary secondary cell of the terminal, thereby meeting the delay and efficiency requirements of the communication.
  • the channel occupancy rate is the Channel Occupancy Ratio
  • the channel occupancy rate is a ratio
  • the denominator is the number of power samples on the carrier
  • the numerator is the number of times the power sample value is higher than the LBT channel detection threshold, that is, the detected channel is detected. The number of times the device is occupied and cannot be used by itself.
  • the communication device 300 further includes: a first group based on the configuration unit 202, the selection unit 204, and the communication control unit 206 shown in FIG.
  • the group management unit 302 is configured to: when the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to a third threshold and/or the channel occupancy is greater than or equal to a fourth threshold, The one of the primary cell group or the primary secondary cell group is removed.
  • the communication device 400 further includes: a second group based on the configuration unit 202, the selection unit 204, and the communication control unit 206 shown in FIG.
  • the group management unit 402 is configured to RSRP/RSRQ of other serving cells other than the primary cell group or the primary secondary cell group, and RSRP of any one of the primary cell group or the primary secondary cell group.
  • /RSRQ high fifth threshold, and/or channel occupancy ratio of the other serving cell other than the primary cell group or the primary secondary cell group is greater than any of the primary cell group or the primary secondary cell group When the channel occupancy rate of the cell is lower than the sixth threshold, the any cell is replaced by the other serving cell.
  • the communication device 500 further includes: a third group based on the configuration unit 202, the selection unit 204, and the communication control unit 206 shown in FIG.
  • the group management unit 502 is configured to set the RSRP/RSRQ of the other serving cell other than the primary cell group or the primary secondary cell group to be greater than or equal to a seventh threshold and/or the channel occupancy of the other serving cell is less than or Equal to an eighth threshold, and the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to a ninth threshold and/or the channel occupancy of the any cell is greater than or equal to tenth At the threshold, any of the cells are replaced by the other serving cell.
  • the cell used for uplink transmission in the primary cell group or the primary secondary cell group is the same as or different from the cell used for downlink transmission.
  • the communication device may have the first group management unit 302 shown in FIG. 3 on the basis of the configuration unit 202, the selection unit 204, and the communication control unit 206 shown in FIG. 2. All or any two of the second group management unit 402 shown in FIG. 4 and the third group management unit 502 shown in FIG.
  • Fig. 6 shows a schematic flow chart of a communication method in accordance with a second embodiment of the present invention.
  • the communication method according to the second embodiment of the present invention includes the following steps:
  • Step S60 The terminal determines a primary cell group or a primary secondary cell group that operates on an unlicensed carrier, where the primary cell group or the primary secondary cell group is from at least one serving cell operating on an unlicensed carrier. And consisting of selecting, each of the serving cells working on an unlicensed carrier.
  • the determining, by the terminal, the primary secondary cell group working on the unlicensed carrier may be determined by receiving the notification signaling sent by the primary secondary cell of the primary base station or the primary secondary cell of the secondary base station on the unlicensed frequency band. .
  • Step S62 communicating with the cells in the primary cell group or the primary secondary cell group.
  • the unlicensed frequency band works independently, and the communication scenario of the primary cell is deployed on the unlicensed frequency band.
  • the channel cannot be continuously occupied on the licensed frequency band, that is, the channel detection mechanism exists. Therefore, by communicating with the cell in the primary cell group, the terminal can improve the signaling or data transmission probability between the primary cell group and the terminal, thereby ensuring the transmission probability.
  • the primary cell group can transmit and receive the necessary signaling or data in a timely and efficient manner, which satisfies the communication delay and efficiency requirements.
  • a primary secondary cell group When a primary secondary cell group is selected from at least one serving cell operating in an unlicensed frequency band, a dual connectivity communication scenario is performed on the unlicensed frequency band and the licensed frequency band, and the channel cannot be continuously occupied on the unlicensed frequency band. That is, the channel detection mechanism exists. Therefore, by communicating with the cells in the primary secondary cell group, the terminal can improve the signaling or data transmission probability between the primary secondary cell group and the terminal, thereby ensuring that the primary secondary cell group can The necessary signaling or data is sent and received in a timely and efficient manner, meeting the delay and efficiency requirements of the communication.
  • Fig. 7 shows a schematic block diagram of a communication device in accordance with a fifth embodiment of the present invention.
  • a communication apparatus 700 includes a determining unit 702 and a communication unit 704.
  • the determining unit 702 is configured to determine a primary cell group or a primary secondary cell group operating on an unlicensed carrier, where the primary cell group or the primary secondary cell group is at least from working on an unlicensed carrier.
  • Each of the serving cells is configured to operate on an unlicensed carrier;
  • the communication unit 704 is configured to communicate with the cells in the primary cell group or the primary secondary cell group.
  • the unlicensed frequency band works independently, and the communication scenario of the primary cell is deployed on the unlicensed frequency band.
  • the channel cannot be continuously occupied on the licensed frequency band, that is, the channel detection mechanism exists. Therefore, by communicating with the cell in the primary cell group, the terminal can improve the signaling or data transmission probability between the primary cell group and the terminal, thereby ensuring the transmission probability.
  • the primary cell group can transmit and receive the necessary signaling or data in a timely and efficient manner, which satisfies the communication delay and efficiency requirements.
  • a primary secondary cell group When a primary secondary cell group is selected from at least one serving cell operating in an unlicensed frequency band, a dual connectivity communication scenario is performed on the unlicensed frequency band and the licensed frequency band, and the channel cannot be continuously occupied on the unlicensed frequency band. That is, the channel detection mechanism exists. Therefore, by communicating with the cells in the primary secondary cell group, the terminal can improve the signaling or data transmission probability between the primary secondary cell group and the terminal, thereby ensuring that the primary secondary cell group can The necessary signaling or data is sent and received in a timely and efficient manner, meeting the delay and efficiency requirements of the communication.
  • the determining unit 702 determines that the primary secondary cell group operating on the unlicensed carrier may be sent by using a notification signaling sent by the primary secondary cell of the primary base station or the primary secondary cell of the secondary base station on the unlicensed frequency band. definite.
  • the technical solution of the present invention mainly improves the signal transmission probability by using a primary cell group (PCell Group) or a primary secondary cell group (PSCell Group) operating on an unlicensed frequency band, thereby ensuring a primary cell group or a primary group.
  • the auxiliary cell group can transmit and receive necessary information and data in a timely and effective manner, and meets the delay and efficiency requirements of the communication.
  • the PCell of the primary base station operating on the unlicensed frequency band configures, for each terminal, 0 or at least one cell operating on the unlicensed frequency band on the primary base station, and the PCell selects 0 or 0 out of the 0 or at least one of the cells. At least one, and together with PCell, form the PCell Group for each terminal.
  • Each of the at least one cell operates on an unlicensed carrier, for example, Cell#1 is configured on the unlicensed carrier 1, Cell#2 is configured on the unlicensed carrier 2, and configured on the unlicensed carrier 3. Cell#3... Cell#M is configured on the unlicensed carrier M, and then the PCell selects 0 or at least one Cell and PCell to form a PCell Group for each terminal.
  • the number of cells in the PCell Group can have an upper limit, such as a maximum of 2, 3, or other values.
  • the PCell Group is independent, that is, the PCell Group of different users can be the same or different.
  • the configuration of the PSCell Group is divided into two configuration schemes:
  • the PCell of the primary base station (ie, the MeNB) operating on the licensed frequency band configures, for each terminal, at least one serving cell operating on the unlicensed frequency band on the secondary base station (ie, the SeNB), and the PCell selects the at least one serving cell from the at least one serving cell.
  • Each of the at least one serving cell operates on an unlicensed carrier, for example, SCell #1 is configured on the unlicensed carrier 1, and SCell #2 is configured on the unlicensed carrier 2, and the unlicensed carrier 3 is configured.
  • the SCell #3 is configured on the unlicensed carrier M, and the PCell selects at least one SCell to form a PSCell Group for each terminal.
  • the number of cells in the PSCell Group can have an upper limit, such as a maximum of 2, 3, or other values.
  • the PSCell Group is independent, that is, the PSCell Group of different users can be the same or different.
  • the PCell of the primary base station (ie, the MeNB) operating on the licensed frequency band configures the PSCell operating on the unlicensed frequency band on the secondary base station (ie, the SeNB) to each terminal, and the PSCell is configured to work on the SeNB for each terminal.
  • the PSCell picks 0 or at least one of the 0 or at least one cell, and together with the PSCell constitutes a PSCell Group of each terminal.
  • Each cell in at least one cell works on an unlicensed carrier.
  • SCell #1 is configured on the unlicensed carrier 1
  • SCell #2 is configured on the unlicensed carrier 2
  • unlicensed carrier 3 is configured.
  • SCell #3... SCell#M is configured on the unlicensed carrier M, and then the PSCell picks out 0 or at least one SCell and PSCell together to form a PSCell Group for each terminal.
  • the number of cells in the PSCell Group can have an upper limit, such as a maximum of 2, 3, or other values.
  • the PSCell Group is independent, that is, the PSCell Group of different users can be the same or different.
  • the SCell is first selected to form the SCell Group, and one or more of the SCells are further selected from the SCell Group to form the PSCell Group.
  • the SCell when the SCell is selected, it can be selected by using Event A3, Event A4, Event A5, and the like of LTE.
  • the neighboring cell when Event A3 is used, if the quality of service of the neighboring cell is higher than the quality of service of the current serving cell, the neighboring cell is added to the SCell Group; when Event A4 is used, if the quality of service of the neighboring cell is higher than a certain threshold. The neighboring cell is added to the SCell Group. When the service quality of the serving cell is lower than a threshold and the service command of the neighboring cell is higher than a threshold, the neighboring cell is added to the SCell Group.
  • All SCells are sorted in descending order, and the ordering criteria are: RSRP/RSRQ from large to small and/or channel occupancy from low to high.
  • the SCells that are ranked first and satisfy the predetermined condition are sequentially selected as PSCell #1, PSCell #2, . . . until the selected PSCell reaches the maximum number or all SCells are selected.
  • the predetermined condition is that the RSRP/RSRQ is greater than a threshold, and/or the channel occupancy is less than a threshold.
  • the PSCell is removed from the PSCell Group.
  • All PCells in the PCell Group cannot be scheduled across cells other than the PCell Group, but can be scheduled across cells in the PCell Group. If multiple PCells detect that the channel is idle and need to send cross-carrier scheduling signaling, it is sent by the PCell with a small number.
  • the PCell with a small number indicates the PCell with the largest RSRP/RSRQ and/or the lowest channel occupancy.
  • all PSCells in the PSCell Group cannot be scheduled by SCell across carriers outside the PSCell Group, but can be scheduled across the PSCell across the PSCell Group. If multiple PSCells detect that the channel is idle and need to send cross-carrier scheduling signaling, it is sent by the PSCell with a small number.
  • the PSCell with a small number indicates the PSCell with the largest RSRP/RSRQ and/or the lowest channel occupancy.
  • the information of the PUCCH/PDCCH can be transmitted on all the PCells in the PCell Group. However, the same PUCCH/PDCCH content can be sent only on one PCell at the same time.
  • all PSCells in the PSCell Group can transmit information carried by the PUCCH/PDCCH, but the same PUCCH/PDCCH content can be sent only on one of the PSCells at the same time, which PSCell transmission is dynamically configured or The LBT channel detection result and channel conditions are determined.
  • the user equipment can send a random access preamble on all PCells in the PCell Group.
  • the user equipment may send the RA preamble on multiple PCells if the channel detection of the PRACH (Physical Random Access Channel) channel of the PCell group is idle; but if the PCells belong to the same TAG, The RA response is sent only on one PCell.
  • PRACH Physical Random Access Channel
  • the user equipment can transmit a random access preamble on all PSCells in the PSCell Group. If the PRACH channel detection of multiple PSCells in the PSCell Group is idle, the user equipment may send the RA preamble on multiple PSCells; but if the PSCells belong to the same TAG, the RA response may be sent on only one PSCell.
  • the UE can determine that the PCell is an RLF, and then perform an RRC-reestablishment process.
  • the UE can determine that the PSCell is an RLF, and then send a radio link failure report to the PCell of the primary base station operating in the licensed frequency band.
  • Fig. 8 shows a schematic block diagram of a communication device in accordance with a sixth embodiment of the present invention.
  • a communication apparatus includes a processor 1 and a memory 2.
  • the processor 1 and the memory 2 may be connected by a bus 3 or other means, and the connection through the bus 3 is exemplified in FIG.
  • the memory 2 is used to store a set of program codes, and the processor 1 calls the program code stored in the memory 2 for performing the following operations:
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the primary serving cell selects at least one of the at least one serving cell as the primary secondary cell of the secondary terminal on the secondary base station to form each terminal on the secondary base station.
  • Primary secondary cell group
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the primary serving cell of the primary base station operating on the licensed frequency band the primary secondary serving cell operating on the unlicensed frequency band to the secondary base station, and the primary secondary serving service cell is in the terminal Configuring a secondary base station to configure 0 or at least one cell operating on an unlicensed frequency band, where the 0 or at least one cell and the primary secondary serving cell form the at least one serving cell,
  • the primary auxiliary serving cell selects at least one of the at least one serving cell as the primary secondary cell of the secondary terminal on the secondary base station, to form each terminal on the secondary base station.
  • Primary secondary cell group selects at least one of the at least one serving cell as the primary secondary cell of the secondary terminal on the secondary base station, to form each terminal on the secondary base station.
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the primary serving cell constitutes the at least one serving cell
  • the primary serving cell selects at least one of the at least one serving cell as the primary cell of each terminal to form a primary cell group of each terminal.
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • Transmission of PDCCH and/or PUCCH transmission content is performed by one or more of the primary cell group or the primary secondary cell group.
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the user equipment When the user equipment sends a random access preamble on multiple cells in the primary cell group or the primary secondary cell group, if the multiple cells belong to the same time advancement group, only the A random access response is sent on one of the plurality of cells.
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the radio link monitoring result of all the cells in the primary cell group or the primary secondary cell group of any terminal is a radio link failure, determining whether the radio link of the primary cell or the primary secondary cell of the any terminal fails .
  • the processor 1 calls the program code stored in the memory 2 to perform an operation of selecting at least one of the at least one serving cell as a primary cell or a primary secondary cell of each terminal, Specifically:
  • the at least one serving cell whose channel occupancy is less than or equal to the second threshold is used as the primary cell or the primary secondary cell of each terminal.
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to a third threshold and/or the channel occupancy is greater than or equal to a fourth threshold, from the primary cell group or The one of the cells is removed from the primary secondary cell group.
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the RSRP/RSRQ of the other serving cell other than the primary cell group or the primary secondary cell group is higher than the RSRP/RSRQ of the primary cell group or the primary secondary cell group by a fifth threshold, And/or the channel occupancy rate of the other serving cell other than the primary cell group or the primary secondary cell group is lower than the channel occupancy rate of any of the primary cell group or the primary secondary cell group.
  • the threshold is six, the any cell is replaced by the other serving cell.
  • the processor 1 calls the program code stored in the memory 2, and is also used to perform the following operations:
  • the RSRP/RSRQ of the other serving cell other than the primary cell group or the primary secondary cell group is greater than or equal to a seventh threshold and/or the channel occupancy of the other serving cell is less than or equal to an eighth threshold, and When the RSRP/RSRQ of any one of the primary cell group or the primary secondary cell group is less than or equal to the ninth threshold and/or the channel occupancy of the any cell is greater than or equal to the tenth threshold, by using the other The serving cell replaces any of the cells.
  • Fig. 9 shows a schematic block diagram of a communication device in accordance with a seventh embodiment of the present invention.
  • a communication apparatus includes a processor 1', a memory 2', and a transceiver 4'.
  • the processor 1', the memory 2' and the transceiver 4' may be connected by a bus 3' or other means, as exemplified by the connection through the bus 3' in FIG.
  • the memory 2' is used to store a set of program codes, and the processor 1' calls the program code stored in the memory 2' for performing the following operations:
  • Determining a primary cell group or a primary secondary cell group operating on an unlicensed carrier wherein the primary cell group or the primary secondary cell group is selected from at least one serving cell operating on an unlicensed carrier Composed, each of the serving cells operates on an unlicensed carrier.
  • the units in the communication device of the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • PROM Programmable Read-Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • OTPROM One-Time Programmable Read-Only Memory
  • EEPROM Electronically-Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • the present invention proposes a new communication scheme, which can improve the signal transmission probability on the primary cell group or the primary secondary cell group in the unlicensed frequency band, thereby ensuring The primary cell group or the primary secondary cell group can transmit and receive necessary information and data in a timely and effective manner, which satisfies the communication delay and efficiency requirements.

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Abstract

本发明提供了一种通信方法和通信装置，其中，通信方法包括：向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上；从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组；通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。本发明的技术方案可以提高非授权频段上的主小区群组或主辅助小区群组上的信号发送概率，进而可以保证主小区群组或主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。

Description

通信方法和通信装置
本申请要求于2016年9月9日提交中国专利局，申请号为201610819331.7、发明名称为“通信方法和通信装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体而言，涉及一种通信方法和一种通信装置。
背景技术
随着通信业务量的急剧增加，3GPP授权频谱显得越来越不足以提供更高的网络容量。因此3GPP提出了LAA（LTE Assisted Access，LTE辅助接入）的概念，用于借助LTE授权频谱的帮助来使用非授权频谱，LAA方案是基于载波聚合的功能来将LTE系统部署在非授权频段。
同时，非授权频谱可以有两种工作方式，一种是补充下行（SDL，Supplemental Downlink），即只有下行传输子帧；另一种是TDD模式，既包含下行子帧、也包含上行子帧。补充下行这种情况只能是借助载波聚合技术使用。而TDD模式除了可以借助载波聚合技术使用外，还可以借助DC （Dual Connectivity，双连通）使用，也可以独立使用。
现有方案只讨论了非授权频谱与LTE授权频谱使用载波聚合的方式进行工作时的各种问题，没有讨论使用双连接的方式进行工作时的问题。在很多情况下，非授权频谱部署的基站与授权频谱所在基站之间的连接是非理想的，只能使用双连接的方式。而在双连接的情况下，SeNB（Secondary eNB，辅基站）需要有一个PSCell （Primary Secondary cell，主辅助小区）来提供PCell（Primary cell，主小区）的部分功能，比如MIB（Master Information Block，主要信息块）的发送、PDCCH（Physical Downlink Control Channel，物理下行控制信道）和PUCCH（Physical Uplink Control Channel，物理上行控制信道）的控制、随机接入过程的控制、RLM（Radio Link Monitoring，无线链路监测）控制等。而LAA中即载波聚合工作方式中，非授权频谱上的小区不具备或只具备较弱的这几项功能，无法保证PSCell的有效性。
此外，在非授权频谱上，也可以部署工作在非授权载波上的PCell，即非授权频谱上的小区独立工作（即standalone），以实现对通信的控制。
基于上述两种情况，如何保证非授权频段上的PSCell或PCell能够及时有效地发送和接收必要的信息和数据，保证通信的时延和效率成为亟待解决的技术问题。
发明内容
本发明正是基于上述技术问题至少之一，提出了一种新的通信方案，可以提高非授权频段上的主小区群组或主辅助小区群组上的信号发送概率，进而可以保证主小区群组或主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
有鉴于此，根据本发明的第一方面，提出了一种通信方法，包括以下步骤：向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上；从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组；通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。
在该技术方案中，当从工作在非授权频段上的至少一个服务小区中选出至少一个作为每个终端的主小区，以组成每个终端的主小区群组，进而通过该主小区群组来与每个终端进行通信时，是非授权频谱独立工作、且在非授权频段上部署主小区的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此通过由主小区群组来与每个终端进行通信，可以提高每个终端的主小区群组上的信号发送概率，进而可以保证主小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
当从工作在非授权频段上的至少一个服务小区中选出至少一个作为每个终端的主辅助小区，以组成每个终端的主辅助小区群组，进而通过该主辅助小区群组来与每个终端进行通信时，是在非授权频段和授权频段上进行双连接的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此通过由主辅助小区群组来与每个终端进行通信，可以提高每个终端的主辅助小区群组上的信号发送概率，进而可以保证主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
对于如何配置上述至少一个服务小区以及如何选择并组成每个终端的主小区群组或主辅助小区群组，本发明提出了如下三个方案：
方案一：
工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置所述至少一个服务小区，其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案一适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置至少一个服务小区，并由主服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
方案二：
工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置工作在非授权频段上的主辅助服务小区，所述主辅助服务小区向所述每个终端在所述辅基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主辅助服务小区组成所述至少一个服务小区，其中，所述主辅助服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案二也适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置主辅助服务小区，进而由主辅助服务小区向每个终端在辅基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主辅助服务小区共同组成了上述至少一个服务小区，然后由主辅助服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
进一步地，在所述主辅助服务小区为多个的情况下，向所述每个终端配置所述0个或至少一个小区的配置信令由所述主辅助服务小区中的一个或多个发送。其中，所述的配置信令可以是RRC（Radio Resource Control，无线资源控制）信令。
方案三：
工作在非授权频段上的主基站的主服务小区向所述每个终端在所述主基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主服务小区组成所述至少一个服务小区，其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区，以组成所述每个终端的主小区群组。
方案三适用于非授权频段独立工作、且在非授权频段上部署主小区的通信场景，即由非授权频段上的主基站的主服务小区向每个终端在主基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主服务小区共同组成了上述至少一个服务小区，然后由主服务小区来选择并组成每个终端的主小区群组。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中的所有小区均能够发送主要信息块。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中的任一小区只能够被所述主小区群组或主辅助小区群组中的其它小区跨载波调度，且能跨载波调度与所述任一小区同属于一个基站的所有其它小区。
进一步地，主小区群组或主辅助小区群组内的小区不能被主小区群组或主辅助小区群组之外的小区跨载波调度。
在上述任一技术方案中，优选地，所述的通信方法还包括：通过所述主小区群组或主辅助小区群组中的一个或多个小区来进行PDCCH和/或PUCCH发送内容的传输。
在上述任一技术方案中，优选地，所述的通信方法还包括：当用户设备在所述主小区群组或主辅助小区群组中的多个小区上均发送随机接入前导码（即Random Access Preamble，简称RA Preamble）时，若所述多个小区属于同一个时间提前量组（Timing Advance Group，简称TAG），则仅在所述多个小区中的一个小区上发送随机接入响应。
在上述任一技术方案中，优选地，所述的通信方法还包括：在任一终端的主小区群组或主辅助小区群组中的所有小区的无线链路监测结果均为无线链路失败时，确定所述任一终端的主小区或主辅助小区的无线链路失败（Radio Link Failure，简称RLF）。
在上述任一技术方案中，优选地，从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区的步骤，具体包括：根据所述至少一个服务小区的RSRP（Reference Signal Receiving Power，参考信号接收功率）/RSRQ（Reference Signal Receiving Quality，参考信号接收质量）由高到低的顺序和/或所述至少一个服务小区的信道占用率由低到高的顺序，选择RSRP/RSRQ大于或等于第一阈值和/或信道占用率小于或等于第二阈值的至少一个服务小区作为所述每个终端的主小区或主辅助小区。
该技术方案能够确保选择出通信环境较优的服务小区作为终端的主小区或主辅助小区，进而满足通信的时延和效率要求。其中，信道占用率即为Channel Occupancy Ratio，信道占用率是一个比值，分母为该载波上的功率抽样次数，分子为功率抽样值高于LBT 信道检测门限值的次数，即检测到信道被其它设备占用而自己无法使用的次数。
在上述任一技术方案中，优选地，所述的通信方法还包括：在所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，从所述主小区群组或主辅助小区群组中去除所述任一小区。
在该技术方案中，当任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，说明该小区的通信环境变差，为了满足通信的时延和效率要求，可以将其从主小区群组或主辅助小区群组中去除。
在上述任一技术方案中，优选地，所述的通信方法还包括：在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ比所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ高第五阈值，和/或在所述主小区群组或主辅助小区群组之外的其它服务小区的信道占用率比所述主小区群组或主辅助小区群组中的任一小区的信道占用率低第六阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
在上述任一技术方案中，优选地，所述的通信方法还包括：在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ大于或等于第七阈值和/或所述其它服务小区的信道占用率小于或等于第八阈值，且所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第九阈值和/或所述任一小区的信道占用率大于或等于第十阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，同样地，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中用于上行发送的小区和用于下行发送的小区相同或不同。
根据本发明的第二方面，还提出了一种通信装置，包括：配置单元，设置为向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上；选择单元，设置为从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组；通信控制单元，设置为通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。
在该技术方案中，当从工作在非授权频段上的至少一个服务小区中选出至少一个作为每个终端的主小区，以组成每个终端的主小区群组，进而通过该主小区群组来与每个终端进行通信时，是非授权频段独立工作、且在非授权频段上部署主小区的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此通过由主小区群组来与每个终端进行通信，可以提高每个终端的主小区群组上的信号发送概率，进而可以保证主小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
当从工作在非授权频段上的至少一个服务小区中选出至少一个作为每个终端的主辅助小区，以组成每个终端的主辅助小区群组，进而通过该主辅助小区群组来与每个终端进行通信时，是在非授权频段和授权频段上进行双连接的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此通过由主辅助小区群组来与每个终端进行通信，可以提高每个终端的主辅助小区群组上的信号发送概率，进而可以保证主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
对于配置单元如何配置上述至少一个服务小区以及选择单元如何选择并组成每个终端的主小区群组或主辅助小区群组，本发明提出了如下三个方案：
方案一：
所述配置单元具体设置为，通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置所述至少一个服务小区；所述选择单元具体设置为，通过所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案一适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置至少一个服务小区，并由主服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
方案二：
所述配置单元具体设置为，通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置工作在非授权频段上的主辅助服务小区，所述主辅助服务小区向所述每个终端在所述辅基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主辅助服务小区组成所述至少一个服务小区；所述选择单元具体设置为，通过所述主辅助服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案二也适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置主辅助服务小区，进而由主辅助服务小区向每个终端在辅基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主辅助服务小区共同组成了上述至少一个服务小区，然后由主辅助服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
进一步地，在所述主辅助服务小区为多个的情况下，向所述每个终端配置所述0个或至少一个小区的配置信令由所述主辅助服务小区中的一个或多个发送。其中，所述的配置信令可以是RRC信令。
方案三：
所述配置单元具体设置为，通过工作在非授权频段上的主基站的主服务小区向所述每个终端在所述主基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主服务小区组成所述至少一个服务小区；所述选择单元具体设置为，通过所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区，以组成所述每个终端的主小区群组。
方案三适用于非授权频段独立工作，且在非授权频段上部署主小区的通信场景，即由非授权频段上的主基站的主服务小区向每个终端在主基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主服务小区共同组成了上述至少一个服务小区，然后由主服务小区来选择并组成每个终端的主小区群组。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中的所有小区均能够发送主要信息块。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中的任一小区只能够被所述主小区群组或主辅助小区群组中的其它小区跨载波调度，且能跨载波调度与所述任一小区同属于一个基站的所有其它小区。
进一步地，主小区群组或主辅助小区群组内的小区不能被主小区群组或主辅助小区群组之外的小区跨载波调度。
在上述任一技术方案中，优选地，所述通信控制单元具体设置为：通过所述主小区群组或主辅助小区群组中的一个或多个小区来进行PDCCH和/或PUCCH发送内容的传输。
在上述任一技术方案中，优选地，所述通信控制单元具体设置为：当用户设备在所述主小区群组或主辅助小区群组中的多个小区上均发送随机接入前导码时，若所述多个小区属于同一个时间提前量组，则仅在所述多个小区中的一个小区上发送随机接入响应。
在上述任一技术方案中，优选地，所述通信控制单元具体设置为：在任一终端的主小区群组或主辅助小区群组中的所有小区的无线链路监测结果均为无线链路失败时，确定所述任一终端的主小区或主辅助小区的无线链路失败。
在上述任一技术方案中，优选地，所述选择单元具体设置为：根据所述至少一个服务小区的RSRP/RSRQ由高到低的顺序和/或所述至少一个服务小区的信道占用率由低到高的顺序，选择RSRP/RSRQ大于或等于第一阈值和/或信道占用率小于或等于第二阈值的至少一个服务小区作为所述每个终端的主小区或主辅助小区。
该技术方案能够确保选择出通信环境较优的服务小区作为终端的主小区或主辅助小区，进而满足通信的时延和效率要求。其中，信道占用率即为Channel Occupancy Ratio，信道占用率是一个比值，分母为该载波上的功率抽样次数，分子为功率抽样值高于LBT 信道检测门限值的次数，即检测到信道被其它设备占用而自己无法使用的次数。
在上述任一技术方案中，优选地，所述的通信装置还包括：第一群组管理单元，设置为在所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，从所述主小区群组或主辅助小区群组中去除所述任一小区。
在该技术方案中，当任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，说明该小区的通信环境变差，为了满足通信的时延和效率要求，可以将其从主小区群组或主辅助小区群组中去除。
在上述任一技术方案中，优选地，所述的通信装置还包括：第二群组管理单元，设置为在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ比所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ高第五阈值，和/或在所述主小区群组或主辅助小区群组之外的其它服务小区的信道占用率比所述主小区群组或主辅助小区群组中的任一小区的信道占用率低第六阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
在上述任一技术方案中，优选地，所述的通信装置还包括：第三群组管理单元，设置为在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ大于或等于第七阈值和/或所述其它服务小区的信道占用率小于或等于第八阈值，且所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第九阈值和/或所述任一小区的信道占用率大于或等于第十阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，同样地，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中用于上行发送的小区和用于下行发送的小区相同或不同。
根据本发明的第三方面，还提出了一种通信方法，包括：终端确定工作在非授权载波上的主小区群组或主辅助小区群组；与所述主小区群组或主辅助小区群组中的小区进行通信；其中，所述主小区群组或主辅助小区群组是从工作在非授权载波上的至少一个服务小区中进行选择而组成的，每个所述服务小区工作在一个非授权载波上。
在该技术方案中，当从工作在非授权频段上的至少一个服务小区中选择组成主小区群组时，是非授权频段独立工作、且在非授权频段上部署主小区的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主小区群组中的小区进行通信，可以提高主小区群组与终端之间的信令或数据的发送概率，进而可以保证主小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
当从工作在非授权频段上的至少一个服务小区中选择组成主辅助小区群组时，是在非授权频段和授权频段上进行双连接的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主辅助小区群组中的小区进行通信，可以提高主辅助小区群组与终端之间的信令或数据的发送概率，进而可以保证主辅助小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
其中，终端确定工作在非授权载波上的主辅助小区群组可以是通过接收授权频段上的主基站的主服务小区或非授权频段上的辅基站的主辅助小区发送的通知信令来确定的。
根据本发明的第四方面，还提出了一种通信装置，包括：确定单元，设置为确定工作在非授权载波上的主小区群组或主辅助小区群组，其中，所述主小区群组或主辅助小区群组是从工作在非授权载波上的至少一个服务小区中进行选择而组成的，每个所述服务小区工作在一个非授权载波上；通信单元，设置为与所述主小区群组或主辅助小区群组中的小区进行通信。
在该技术方案中，当从工作在非授权频段上的至少一个服务小区中选择组成主小区群组时，是非授权频段独立工作、且在非授权频段上部署主小区的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主小区群组中的小区进行通信，可以提高主小区群组与终端之间的信令或数据的发送概率，进而可以保证主小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
当从工作在非授权频段上的至少一个服务小区中选择组成主辅助小区群组时，是在非授权频段和授权频段上进行双连接的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主辅助小区群组中的小区进行通信，可以提高主辅助小区群组与终端之间的信令或数据的发送概率，进而可以保证主辅助小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
其中，确定单元确定工作在非授权载波上的主辅助小区群组可以是通过接收授权频段上的主基站的主服务小区或非授权频段上的辅基站的主辅助小区发送的通知信令来确定的。
通过以上技术方案，可以提高非授权频段上的主小区群组或主辅助小区群组上的信号发送概率，进而可以保证主小区群组或主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
 附图说明
图1示出了根据本发明的第一个实施例的通信方法的示意流程图；
图2示出了根据本发明的第一个实施例的通信装置的示意框图；
图3示出了根据本发明的第二个实施例的通信装置的示意框图；
图4示出了根据本发明的第三个实施例的通信装置的示意框图；
图5示出了根据本发明的第四个实施例的通信装置的示意框图；
图6示出了根据本发明的第二个实施例的通信方法的示意流程图；
图7示出了根据本发明的第五个实施例的通信装置的示意框图；
图8示出了根据本发明的第六个实施例的通信装置的示意框图；
图9示出了根据本发明的第七个实施例的通信装置的示意框图。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图1示出了根据本发明的第一个实施例的通信方法的示意流程图。
如图1所示，根据本发明的第一个实施例的通信方法，包括以下步骤：
步骤S10，向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上。
步骤S12，从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组。
对于步骤S10中如何配置上述至少一个服务小区以及步骤S12中如何选择并组成每个终端的主小区群组或主辅助小区群组，本发明提出了如下三个方案：
方案一：
工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置所述至少一个服务小区，其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案一适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置至少一个服务小区，并由主服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
方案二：
工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置工作在非授权频段上的主辅助服务小区，所述主辅助服务小区向所述每个终端在所述辅基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主辅助服务小区组成所述至少一个服务小区，其中，所述主辅助服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案二也适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置主辅助服务小区，进而由主辅助服务小区向每个终端在辅基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主辅助服务小区共同组成了上述至少一个服务小区，然后由主辅助服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
进一步地，在所述主辅助服务小区为多个的情况下，向所述每个终端配置所述0个或至少一个小区的配置信令由所述主辅助服务小区中的一个或多个发送。其中，所述的配置信令可以是RRC信令。
方案三：
工作在非授权频段上的主基站的主服务小区向所述每个终端在所述主基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主服务小区组成所述至少一个服务小区，其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区，以组成所述每个终端的主小区群组。
方案三适用于非授权频段独立工作、且在非授权频段上部署主小区的通信场景，即由非授权频段上的主基站的主服务小区向每个终端在主基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主服务小区共同组成了上述至少一个服务小区，然后由主服务小区来选择并组成每个终端的主小区群组。
图1所示的通信方法还包括：
步骤S14，通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。
以下详细介绍主小区群组或主辅助小区群组与每个终端进行通信的过程：
1、主小区群组或主辅助小区群组中的所有小区均能够发送主要信息块。
具体地，通过主小区群组或主辅助小区群组中检测到下行信道空闲的小区发送所述主要信息块。
其中，若主小区群组或主辅助小区群组中的多个小区检测到下行信道空闲，则在同一时间可以通过多个小区中的一个或多个小区发送所述主要信息块。
为了增加主要信息块的发送机会，可以在主小区群组或主辅助小区群组中的多个小区检测到下行信道空闲时，控制这多个小区在不同的时间点分别发送主要信息块。当然也可以通过改变主要信息块的发送周期，譬如主要信息块以5ms或10ms为周期进行发送。
此外，由于主要信息块只需要发送系统帧号，因此主要信息块的发送时长可以设置为大于或等于1个符号（Symbol）所占用的时长，且小于或等于4个符号所占用的时长。
2、主小区群组或主辅助小区群组中的任一小区只能够被所述主小区群组或主辅助小区群组中的其它小区跨载波调度，且能跨载波调度与所述任一小区同属于一个基站的所有其它小区。
进一步地，主小区群组或主辅助小区群组内的小区不能被主小区群组或主辅助小区群组之外的小区跨载波调度。
3、通过所述主小区群组或主辅助小区群组中的一个或多个小区来进行PDCCH和/或PUCCH发送内容的传输。
4、当用户设备在所述主小区群组或主辅助小区群组中的多个小区上均发送随机接入前导码时，若所述多个小区属于同一个时间提前量组，则仅在所述多个小区中的一个小区上发送随机接入响应。
5、在任一终端的主小区群组或主辅助小区群组中的所有小区的无线链路监测结果均为无线链路失败时，确定所述任一终端的主小区或主辅助小区的无线链路失败。
在本发明的一个实施例中，图1中所示的步骤S12具体包括：根据所述至少一个服务小区的RSRP/RSRQ由高到低的顺序和/或所述至少一个服务小区的信道占用率由低到高的顺序，选择RSRP/RSRQ大于或等于第一阈值和/或信道占用率小于或等于第二阈值的至少一个服务小区作为所述每个终端的主小区或主辅助小区。
该技术方案能够确保选择出通信环境较优的服务小区作为终端的主小区或主辅助小区，进而满足通信的时延和效率要求。其中，信道占用率即为Channel Occupancy Ratio，信道占用率是一个比值，分母为该载波上的功率抽样次数，分子为功率抽样值高于LBT 信道检测门限值的次数，即检测到信道被其它设备占用而自己无法使用的次数。
进一步地，所述的通信方法还包括：在所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，从所述主小区群组或主辅助小区群组中去除所述任一小区。
在该技术方案中，当任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，说明该小区的通信环境变差，为了满足通信的时延和效率要求，可以将其从主小区群组或主辅助小区群组中去除。
进一步地，所述的通信方法还包括：在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ比所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ高第五阈值，和/或在所述主小区群组或主辅助小区群组之外的其它服务小区的信道占用率比所述主小区群组或主辅助小区群组中的任一小区的信道占用率低第六阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
进一步地，所述的通信方法还包括：在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ大于或等于第七阈值和/或所述其它服务小区的信道占用率小于或等于第八阈值，且所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第九阈值和/或所述任一小区的信道占用率大于或等于第十阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，同样地，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
其中，所述主小区群组或主辅助小区群组中用于上行发送的小区和用于下行发送的小区相同或不同。
在图1所示的通信方法中，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此通过由主小区群组或主辅助小区群组来与每个终端进行通信，可以提高每个终端的主小区群组或主辅助小区群组上的信号发送概率，进而可以保证主小区群组或主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
图2示出了根据本发明的第一个实施例的通信装置的示意框图。
如图2所示，根据本发明的第一个实施例的通信装置200，包括：配置单元202、选择单元204和通信控制单元206。
其中，配置单元202设置为向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上；选择单元204设置为从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组；通信控制单元206设置为通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。
在该技术方案中，当从工作在非授权频段上的至少一个服务小区中选出至少一个作为每个终端的主小区，以组成每个终端的主小区群组，进而通过该主小区群组来与每个终端进行通信时，是非授权频段独立工作、且在非授权频段上部署主小区的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此通过由主小区群组来与每个终端进行通信，可以提高每个终端的主小区群组上的信号发送概率，进而可以保证主小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
当从工作在非授权频段上的至少一个服务小区中选出至少一个作为每个终端的主辅助小区，以组成每个终端的主辅助小区群组，进而通过该主辅助小区群组来与每个终端进行通信时，是在非授权频段和授权频段上进行双连接的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此通过由主辅助小区群组来与每个终端进行通信，可以提高每个终端的主辅助小区群组上的信号发送概率，进而可以保证主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
对于配置单元如何配置上述至少一个服务小区以及选择单元如何选择并组成每个终端的主小区群组或主辅助小区群组，本发明提出了如下三个方案：
方案一：
所述配置单元202具体设置为，通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置所述至少一个服务小区；所述选择单元204具体设置为，通过所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案一适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置至少一个服务小区，并由主服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
方案二：
所述配置单元202具体设置为，通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置工作在非授权频段上的主辅助服务小区，所述主辅助服务小区向所述每个终端在所述辅基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主辅助服务小区组成所述至少一个服务小区；所述选择单元204具体设置为，通过所述主辅助服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
方案二也适用于非授权频段和授权频段以双连接的方式进行通信的场景，即由工作在授权频段上的主基站的主服务小区来向每个终端在辅基站上配置主辅助服务小区，进而由主辅助服务小区向每个终端在辅基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主辅助服务小区共同组成了上述至少一个服务小区，然后由主辅助服务小区来选择并组成每个终端在辅基站上的主辅助小区群组。
进一步地，在所述主辅助服务小区为多个的情况下，向所述每个终端配置所述0个或至少一个小区的配置信令由所述主辅助服务小区中的一个或多个发送。其中，所述的配置信令可以是RRC信令。
方案三：
所述配置单元202具体设置为，通过工作在非授权频段上的主基站的主服务小区向所述每个终端在所述主基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主服务小区组成所述至少一个服务小区；所述选择单元204具体设置为，通过所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区，以组成所述每个终端的主小区群组。
方案三适用于非授权频段独立工作，且在非授权频段上部署主小区的通信场景，即由非授权频段上的主基站的主服务小区向每个终端在主基站上配置工作在非授权频段上的0个或至少一个小区，这0个或至少一个小区和主服务小区共同组成了上述至少一个服务小区，然后由主服务小区来选择并组成每个终端的主小区群组。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中的所有小区均能够发送主要信息块。
在上述任一技术方案中，优选地，所述主小区群组或主辅助小区群组中的任一小区只能够被所述主小区群组或主辅助小区群组中的其它小区跨载波调度，且能跨载波调度与所述任一小区同属于一个基站的所有其它小区。
进一步地，主小区群组或主辅助小区群组内的小区不能被主小区群组或主辅助小区群组之外的小区跨载波调度。
在上述任一技术方案中，优选地，所述通信控制单元206具体设置为：通过所述主小区群组或主辅助小区群组中的一个或多个小区来进行PDCCH和/或PUCCH发送内容的传输。
在上述任一技术方案中，优选地，所述通信控制单元206具体设置为：当用户设备在所述主小区群组或主辅助小区群组中的多个小区上均发送随机接入前导码时，若所述多个小区属于同一个时间提前量组，则仅在所述多个小区中的一个小区上发送随机接入响应。
在上述任一技术方案中，优选地，所述通信控制单元206具体设置为：在任一终端的主小区群组或主辅助小区群组中的所有小区的无线链路监测结果均为无线链路失败时，确定所述任一终端的主小区或主辅助小区的无线链路失败。
在上述任一技术方案中，优选地，所述选择单元204具体设置为：根据所述至少一个服务小区的RSRP/RSRQ由高到低的顺序和/或所述至少一个服务小区的信道占用率由低到高的顺序，选择RSRP/RSRQ大于或等于第一阈值和/或信道占用率小于或等于第二阈值的至少一个服务小区作为所述每个终端的主小区或主辅助小区。
该技术方案能够确保选择出通信环境较优的服务小区作为终端的主小区或主辅助小区，进而满足通信的时延和效率要求。其中，信道占用率即为Channel Occupancy Ratio，信道占用率是一个比值，分母为该载波上的功率抽样次数，分子为功率抽样值高于LBT 信道检测门限值的次数，即检测到信道被其它设备占用而自己无法使用的次数。
如图3所示，根据本发明的第二个实施例的通信装置300，在具有图2中所示的配置单元202、选择单元204和通信控制单元206的基础上，还包括：第一群组管理单元302，设置为在所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，从所述主小区群组或主辅助小区群组中去除所述任一小区。
在该技术方案中，当任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，说明该小区的通信环境变差，为了满足通信的时延和效率要求，可以将其从主小区群组或主辅助小区群组中去除。
如图4所示，根据本发明的第三个实施例的通信装置400，在具有图2中所示的配置单元202、选择单元204和通信控制单元206的基础上，还包括：第二群组管理单元402，设置为在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ比所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ高第五阈值，和/或在所述主小区群组或主辅助小区群组之外的其它服务小区的信道占用率比所述主小区群组或主辅助小区群组中的任一小区的信道占用率低第六阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
如图5所示，根据本发明的第四个实施例的通信装置500，在具有图2中所示的配置单元202、选择单元204和通信控制单元206的基础上，还包括：第三群组管理单元502，设置为在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ大于或等于第七阈值和/或所述其它服务小区的信道占用率小于或等于第八阈值，且所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第九阈值和/或所述任一小区的信道占用率大于或等于第十阈值时，通过所述其它服务小区替换所述任一小区。
在该技术方案中，同样地，通过使通信环境较优的其它服务小区替换通信环境较差的任一小区，可以保证主小区群组或主辅助小区群组中的小区均是通信环境较优的小区，进而能够满足通信的时延和效率要求。
其中，所述主小区群组或主辅助小区群组中用于上行发送的小区和用于下行发送的小区相同或不同。
在本发明的其它实施例中，通信装置在具有图2中所示的配置单元202、选择单元204和通信控制单元206的基础上，可以具有图3中所示的第一群组管理单元302、图4中所示的第二群组管理单元402和图5中所示的第三群组管理单元502中的全部或任意两个。
图6示出了根据本发明的第二个实施例的通信方法的示意流程图。
如图6所示，根据本发明的第二个实施例的通信方法，包括以下步骤：
步骤S60，终端确定工作在非授权载波上的主小区群组或主辅助小区群组，其中，所述主小区群组或主辅助小区群组是从工作在非授权载波上的至少一个服务小区中进行选择而组成的，每个所述服务小区工作在一个非授权载波上。
其中，终端确定工作在非授权载波上的主辅助小区群组可以是通过接收授权频段上的主基站的主服务小区或非授权频段上的辅基站的主辅助小区发送的通知信令来确定的。
步骤S62，与所述主小区群组或主辅助小区群组中的小区进行通信。
在该技术方案中，当从工作在非授权频段上的至少一个服务小区中选择组成主小区群组时，是非授权频段独立工作、且在非授权频段上部署主小区的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主小区群组中的小区进行通信，可以提高主小区群组与终端之间的信令或数据的发送概率，进而可以保证主小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
当从工作在非授权频段上的至少一个服务小区中选择组成主辅助小区群组时，是在非授权频段和授权频段上进行双连接的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主辅助小区群组中的小区进行通信，可以提高主辅助小区群组与终端之间的信令或数据的发送概率，进而可以保证主辅助小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
图7示出了根据本发明的第五个实施例的通信装置的示意框图。
如图7所示，根据本发明的第五个实施例的通信装置700，包括：确定单元702和通信单元704。
其中，确定单元702设置为确定工作在非授权载波上的主小区群组或主辅助小区群组，其中，所述主小区群组或主辅助小区群组是从工作在非授权载波上的至少一个服务小区中进行选择而组成的，每个所述服务小区工作在一个非授权载波上；通信单元704设置为与所述主小区群组或主辅助小区群组中的小区进行通信。
在该技术方案中，当从工作在非授权频段上的至少一个服务小区中选择组成主小区群组时，是非授权频段独立工作、且在非授权频段上部署主小区的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主小区群组中的小区进行通信，可以提高主小区群组与终端之间的信令或数据的发送概率，进而可以保证主小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
当从工作在非授权频段上的至少一个服务小区中选择组成主辅助小区群组时，是在非授权频段和授权频段上进行双连接的通信场景，由于在非授权频段上不能连续占用信道，即存在信道检测机制，因此终端通过与主辅助小区群组中的小区进行通信，可以提高主辅助小区群组与终端之间的信令或数据的发送概率，进而可以保证主辅助小区群组能够及时有效地发送和接收必要的信令或数据，满足了通信的时延和效率要求。
其中，确定单元702确定工作在非授权载波上的主辅助小区群组可以是通过接收授权频段上的主基站的主服务小区或非授权频段上的辅基站的主辅助小区发送的通知信令来确定的。
综上，本发明的技术方案主要是通过工作在非授权频段上的主小区群组（PCell Group）或主辅助小区群组（PSCell Group）来提高信号发送概率，进而保证主小区群组或主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
具体地，主要分为以下几个方面：
一、PCell Group或PSCell Group的配置。
1、PCell Group的配置：
工作在非授权频段上的主基站的PCell向每个终端在主基站上配置工作在非授权频段上的0个或至少一个Cell，进而PCell从这0个或至少一个Cell中挑选出0个或至少一个，并与PCell一起组成每个终端的PCell Group。
其中，至少一个Cell中的每个Cell工作在一个非授权载波上，譬如在非授权载波1上配置了Cell#1，在非授权载波2上配置了Cell#2，在非授权载波3上配置了Cell#3……在非授权载波M上配置了Cell#M，进而PCell从中挑选出0个或至少一个Cell与PCell共同组成每个终端的PCell Group。PCell Group中的小区数量可以有一个上限值，如最大为2、3或其它值等。对于不同的用户来说，其PCell Group是独立的，即不同用户的PCell Group可以是一样的也可以是不一样的。
2、PSCell Group的配置，具体分为两种配置方案：
方案1：
工作在授权频段上的主基站（即MeNB）的PCell向每个终端在辅基站（即SeNB）上配置工作在非授权频段上的至少一个服务小区，进而PCell从该至少一个服务小区中选出至少一个作为每个终端在SeNB上的PSCell，以组成每个终端在辅基站上的PSCell Group。
其中，至少一个服务小区中的每个服务小区工作在一个非授权载波上，譬如在非授权载波1上配置了SCell#1，在非授权载波2上配置了SCell#2，在非授权载波3上配置了SCell#3……在非授权载波M上配置了SCell#M，进而PCell从中挑选出至少一个SCell组成每个终端的PSCell Group。PSCell Group中的小区数量可以有一个上限值，如最大为2、3或其它值等。对于不同的用户来说，其PSCell Group是独立的，即不同用户的PSCell Group可以是一样的也可以是不一样的。
方案2：
工作在授权频段上的主基站（即MeNB）的PCell向每个终端在辅基站（即SeNB）上配置工作在非授权频段上的PSCell，进而PSCell向每个终端在SeNB上配置工作在非授权频段上的0个或至少一个小区，进而PSCell从这0个或至少一个小区中挑选出0个或至少一个，并与PSCell一起组成每个终端的PSCell Group。
其中，至少一个小区中的每个小区工作在一个非授权载波上，譬如在非授权载波1上配置了SCell#1，在非授权载波2上配置了SCell#2，在非授权载波3上配置了SCell#3……在非授权载波M上配置了SCell#M，进而PSCell从中挑选出0个或至少一个SCell与PSCell共同组成每个终端的PSCell Group。PSCell Group中的小区数量可以有一个上限值，如最大为2、3或其它值等。对于不同的用户来说，其PSCell Group是独立的，即不同用户的PSCell Group可以是一样的也可以是不一样的。
3、选择PSCell Group中的PSCell的一种具体方式：
首先进行SCell的选择，以组成SCell Group，进而从SCell Group中进一步选择一个或多个作为PSCell，以构成PSCell Group。
其中，在进行SCell的选择时，可以采用LTE的Event A3、Event A4和Event A5等来选择。
譬如，在采用Event A3时，若邻小区的服务质量比当前服务小区的服务质量高时，将邻小区加入SCell Group；在采用Event A4时，若邻小区的服务质量高于一定门限值时，将邻小区加入SCell Group；在采用Event A5时，若服务小区的服务质量低于一个门限值，而邻小区的服务指令高于一个门限值时，将邻小区加入SCell Group。
4、PSCell Group内的PSCell的添加、去除和替换：
（1）PSCell的添加。
将所有的SCell进行降序排序，排序的准则为：RSRP/RSRQ由大到小和/或信道占用率由低到高的顺序。排在最前面的且满足预定条件的SCell依次选为PSCell#1、PSCell#2……，直到选择的PSCell到达最大数目或者所有的SCell选择完为止。其中，预定条件是指RSRP/RSRQ大于一个门限值，和/或信道占用率小于一个门限值。
（2）PSCell的去除。
当PSCell Group内的某个PSCell的RSRP/RSRQ小于某个门限值，和/或信道占用率大于一个门限值时，将该PSCell从PSCell Group内去除。
（3）PSCell的替换
方式一：若某个SCell的RSRP/RSRQ比PSCell Group内的一个PSCell的RSRP/RSRQ高一定值，和/或某个SCell的信道占用率比该PSCell的信道占用率低一定值，则通过该SCell替换该PSCell。
方式二：若某个SCell的RSRP/RSRQ高于门限值1，和/或信道占用率低于门限值2；且PSCell Group内的一个PSCell的RSRP/RSRQ低于门限值3，和/或信道占用率高于门限值4，则通过该SCell替换该PSCell。
5、PCell Group内的PCell的添加、去除和替换的方案类似于PSCell Group内的PSCell的添加、去除和替换的方案，不再赘述。
二、PCell Group或PSCell Group的功能。
1、MIB的发送：
PCell Group里所有的PCell都要发送MIB。
类似地，PSCell Group里所有的PSCell都要发送MIB。
2、跨载波调度功能：
PCell Group里所有的PCell不能被PCell Group以外的小区跨载波调度，但是可以被PCell Group内的小区跨载波调度。如果多个PCell检测到信道空闲，且需要发送跨载波调度信令，则由编号小的PCell发送。其中，编号小的PCell表示的是RSRP/RSRQ最大和/或信道占用率最低的PCell。
类似地，PSCell Group里所有的PSCell不能被PSCell Group以外的SCell跨载波调度，但是可以被PSCell Group内的PSCell跨载波调度。如果多个PSCell检测信道空闲，且需要发送跨载波调度信令，则由编号小的PSCell发送。其中，编号小的PSCell表示的是RSRP/RSRQ最大和/或信道占用率最低的PSCell。
3、PUCCH/PDCCH承载信息的发送：
PCell Group里所有的PCell上都可以发送PUCCH/PDCCH承载的信息，但是相同的PUCCH/PDCCH内容，在同一时间可以只在其中一个PCell上发送，具体由哪个PCell发送是动态配置或由LBT（Listen Before Talk，先听后说）信道检测结果进行确定的。
类似地，PSCell Group里所有的PSCell上都可以发送PUCCH/PDCCH承载的信息，但是相同的PUCCH/PDCCH内容，在同一时间可以只在其中一个PSCell上发送，具体由哪个PSCell发送是动态配置或由LBT信道检测结果和信道条件进行确定的。
4、随机接入过程的控制：
用户设备可以在PCell Group里所有的PCell上发送随机接入前导码。若PCell Group内的多个PCell的PRACH（Physical Random Access Channel，物理随机接入信道）信道检测空闲，则用户设备可以在多个PCell上发送RA preamble；但是若这些PCell属于同一个TAG，则可以仅在一个PCell上发送RA response。
类似地，用户设备可以在PSCell Group里所有的PSCell上发送随机接入前导码。若PSCell Group内的多个PSCell的PRACH信道检测空闲，则用户设备可以在多个PSCell上发送RA preamble；但是若这些PSCell属于同一个TAG，则可以仅在一个PSCell上发送RA response。
5、无线链路检测（RLM）：
在PCell Group里的所有PCell都被检测为RLF时，UE才能判定PCell为RLF，进而会执行RRC-reestablishment过程。
而在PSCell Group里的所有PSCell都被检测为RLF时，UE才能判定PSCell为RLF，进而会向工作在授权频段上的主基站的PCell发送无线链路失败报告。
图8示出了根据本发明的第六个实施例的通信装置的示意框图。
如图8所示，根据本发明的第六个实施例的通信装置，包括：处理器1和存储器2。在本发明的一些实施例中，处理器1和存储器2可以通过总线3或其他方式连接，图8中以通过总线3连接为例。
其中，存储器2用于存储一组程序代码，处理器1调用存储器2中存储的程序代码，用于执行以下操作：
向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上；
从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组；
通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置所述至少一个服务小区，
其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置工作在非授权频段上的主辅助服务小区，所述主辅助服务小区向所述每个终端在所述辅基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主辅助服务小区组成所述至少一个服务小区，
其中，所述主辅助服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
通过工作在非授权频段上的主基站的主服务小区向所述每个终端在所述主基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主服务小区组成所述至少一个服务小区，
其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区，以组成所述每个终端的主小区群组。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
通过所述主小区群组或主辅助小区群组中的一个或多个小区来进行PDCCH和/或PUCCH发送内容的传输。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
当用户设备在所述主小区群组或主辅助小区群组中的多个小区上均发送随机接入前导码时，若所述多个小区属于同一个时间提前量组，则仅在所述多个小区中的一个小区上发送随机接入响应。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
在任一终端的主小区群组或主辅助小区群组中的所有小区的无线链路监测结果均为无线链路失败时，确定所述任一终端的主小区或主辅助小区的无线链路失败。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，执行从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区的操作，具体为：
根据所述至少一个服务小区的RSRP/RSRQ由高到低的顺序和/或所述至少一个服务小区的信道占用率由低到高的顺序，选择RSRP/RSRQ大于或等于第一阈值和/或信道占用率小于或等于第二阈值的至少一个服务小区作为所述每个终端的主小区或主辅助小区。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
在所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，从所述主小区群组或主辅助小区群组中去除所述任一小区。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ比所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ高第五阈值，和/或在所述主小区群组或主辅助小区群组之外的其它服务小区的信道占用率比所述主小区群组或主辅助小区群组中的任一小区的信道占用率低第六阈值时，通过所述其它服务小区替换所述任一小区。
作为一种可选的实施方式，处理器1调用存储器2中存储的程序代码，还用于执行以下操作：
在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ大于或等于第七阈值和/或所述其它服务小区的信道占用率小于或等于第八阈值，且所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第九阈值和/或所述任一小区的信道占用率大于或等于第十阈值时，通过所述其它服务小区替换所述任一小区。
图9示出了根据本发明的第七个实施例的通信装置的示意框图。
如图9所示，根据本发明的第七个实施例的通信装置，包括：处理器1'、存储器2'和收发机4'。在本发明的一些实施例中，处理器1'、存储器2'和收发机4'可以通过总线3'或其他方式连接，图9中以通过总线3'连接为例。
其中，存储器2'用于存储一组程序代码，处理器1'调用存储器2'中存储的程序代码，用于执行以下操作：
确定工作在非授权载波上的主小区群组或主辅助小区群组，其中，所述主小区群组或主辅助小区群组是从工作在非授权载波上的至少一个服务小区中进行选择而组成的，每个所述服务小区工作在一个非授权载波上。
通过收发机4'与所述主小区群组或主辅助小区群组中的小区进行通信。
本发明实施例的方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本发明实施例的通信装置中的单元可以根据实际需要进行合并、划分和删减。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质包括只读存储器（Read-Only Memory，ROM）、随机存储器（Random Access Memory，RAM）、可编程只读存储器（Programmable Read-only Memory，PROM）、可擦除可编程只读存储器（Erasable Programmable Read Only Memory，EPROM）、一次可编程只读存储器（One-time Programmable Read-Only Memory，OTPROM）、电子抹除式可复写只读存储器（Electrically-Erasable Programmable Read-Only Memory，EEPROM）、只读光盘（Compact Disc Read-Only Memory，CD-ROM）或其他光盘存储器、磁盘存储器、磁带存储器、或者能够用于携带或存储数据的计算机可读的任何其他介质。
以上结合附图详细说明了本发明的技术方案，本发明提出了一种新的通信方案，可以提高非授权频段上的主小区群组或主辅助小区群组上的信号发送概率，进而可以保证主小区群组或主辅助小区群组能够及时有效地发送和接收必要的信息和数据，满足了通信的时延和效率要求。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (24)

  1. 一种通信装置，其特征在于，包括：
    配置单元，设置为向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上；
    选择单元，设置为从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组；
    通信控制单元，设置为通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。
  2. 根据权利要求1所述的通信装置，其特征在于：
    所述配置单元具体设置为，通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置所述至少一个服务小区；
    所述选择单元具体设置为，通过所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
  3. 根据权利要求1所述的通信装置，其特征在于：
    所述配置单元具体设置为，通过工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置工作在非授权频段上的主辅助服务小区，所述主辅助服务小区向所述每个终端在所述辅基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主辅助服务小区组成所述至少一个服务小区；
    所述选择单元具体设置为，通过所述主辅助服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组。
  4. 根据权利要求3所述的通信装置，其特征在于，在所述主辅助服务小区为多个的情况下，向所述每个终端配置所述0个或至少一个小区的配置信令由所述主辅助服务小区中的一个或多个发送。
  5. 根据权利要求1所述的通信装置，其特征在于：
    所述配置单元具体设置为，通过工作在非授权频段上的主基站的主服务小区向所述每个终端在所述主基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主服务小区组成所述至少一个服务小区；
    所述选择单元具体设置为，通过所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区，以组成所述每个终端的主小区群组。
  6. 根据权利要求1所述的通信装置，其特征在于，所述主小区群组或主辅助小区群组中的所有小区均能够发送主要信息块。
  7. 根据权利要求1所述的通信装置，其特征在于，所述主小区群组或主辅助小区群组中的任一小区只能够被所述主小区群组或主辅助小区群组中的其它小区跨载波调度，且能跨载波调度与所述任一小区同属于一个基站的所有其它小区。
  8. 根据权利要求1所述的通信装置，其特征在于，所述通信控制单元具体设置为：通过所述主小区群组或主辅助小区群组中的一个或多个小区来进行PDCCH和/或PUCCH发送内容的传输。
  9. 根据权利要求1所述的通信装置，其特征在于，所述通信控制单元具体设置为：
    当用户设备在所述主小区群组或主辅助小区群组中的多个小区上均发送随机接入前导码时，若所述多个小区属于同一个时间提前量组，则仅在所述多个小区中的一个小区上发送随机接入响应。
  10. 根据权利要求1所述的通信装置，其特征在于，所述通信控制单元具体设置为：
    在任一终端的主小区群组或主辅助小区群组中的所有小区的无线链路监测结果均为无线链路失败时，确定所述任一终端的主小区或主辅助小区的无线链路失败。
  11. 根据权利要求1至10中任一项所述的通信装置，其特征在于，所述选择单元具体设置为：
    根据所述至少一个服务小区的RSRP/RSRQ由高到低的顺序和/或所述至少一个服务小区的信道占用率由低到高的顺序，选择RSRP/RSRQ大于或等于第一阈值和/或信道占用率小于或等于第二阈值的至少一个服务小区作为所述每个终端的主小区或主辅助小区。
  12. 根据权利要求11所述的通信装置，其特征在于，还包括：
    第一群组管理单元，设置为在所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，从所述主小区群组或主辅助小区群组中去除所述任一小区。
  13. 根据权利要求11所述的通信装置，其特征在于，还包括：
    第二群组管理单元，设置为在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ比所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ高第五阈值，和/或在所述主小区群组或主辅助小区群组之外的其它服务小区的信道占用率比所述主小区群组或主辅助小区群组中的任一小区的信道占用率低第六阈值时，通过所述其它服务小区替换所述任一小区。
  14. 根据权利要求11所述的通信装置，其特征在于，还包括：
    第三群组管理单元，设置为在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ大于或等于第七阈值和/或所述其它服务小区的信道占用率小于或等于第八阈值，且所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第九阈值和/或所述任一小区的信道占用率大于或等于第十阈值时，通过所述其它服务小区替换所述任一小区。
  15. 一种通信方法，其特征在于，包括：
    向每个终端配置至少一个服务小区，每个所述服务小区工作在一个非授权载波上；
    从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区，以组成所述每个终端的主小区群组或主辅助小区群组；
    通过所述主小区群组或主辅助小区群组与所述每个终端进行通信。
  16. 根据权利要求15所述的通信方法，其特征在于：
    工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置所述至少一个服务小区，其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组；或
    工作在授权频段上的主基站的主服务小区向所述每个终端在辅基站上配置工作在非授权频段上的主辅助服务小区，所述主辅助服务小区向所述每个终端在所述辅基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主辅助服务小区组成所述至少一个服务小区，其中，所述主辅助服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端在所述辅基站上的主辅助小区，以组成所述每个终端在所述辅基站上的主辅助小区群组，
    在所述主辅助服务小区为多个的情况下，向所述每个终端配置所述0个或至少一个小区的配置信令由所述主辅助服务小区中的一个或多个发送；或
    工作在非授权频段上的主基站的主服务小区向所述每个终端在所述主基站上配置工作在非授权频段上的0个或至少一个小区，所述0个或至少一个小区和所述主服务小区组成所述至少一个服务小区，其中，所述主服务小区从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区，以组成所述每个终端的主小区群组。
  17. 根据权利要求15所述的通信方法，其特征在于：
    所述主小区群组或主辅助小区群组中的所有小区均能够发送主要信息块；和/或
    所述主小区群组或主辅助小区群组中的任一小区只能够被所述主小区群组或主辅助小区群组中的其它小区跨载波调度，且能跨载波调度与所述任一小区同属于一个基站的所有其它小区。
  18. 根据权利要求15所述的通信方法，其特征在于，还包括：通过所述主小区群组或主辅助小区群组中的一个或多个小区来进行PDCCH和/或PUCCH发送内容的传输。
  19. 根据权利要求15所述的通信方法，其特征在于，还包括：
    当用户设备在所述主小区群组或主辅助小区群组中的多个小区上均发送随机接入前导码时，若所述多个小区属于同一个时间提前量组，则仅在所述多个小区中的一个小区上发送随机接入响应。
  20. 根据权利要求15所述的通信方法，其特征在于，还包括：
    在任一终端的主小区群组或主辅助小区群组中的所有小区的无线链路监测结果均为无线链路失败时，确定所述任一终端的主小区或主辅助小区的无线链路失败。
  21. 根据权利要求15至20中任一项所述的通信方法，其特征在于，从所述至少一个服务小区中选出至少一个作为所述每个终端的主小区或主辅助小区的步骤，具体包括：
    根据所述至少一个服务小区的RSRP/RSRQ由高到低的顺序和/或所述至少一个服务小区的信道占用率由低到高的顺序，选择RSRP/RSRQ大于或等于第一阈值和/或信道占用率小于或等于第二阈值的至少一个服务小区作为所述每个终端的主小区或主辅助小区。
  22. 根据权利要求21所述的通信方法，其特征在于，还包括：
    在所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第三阈值和/或信道占用率大于或等于第四阈值时，从所述主小区群组或主辅助小区群组中去除所述任一小区；和/或
    在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ比所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ高第五阈值，和/或在所述主小区群组或主辅助小区群组之外的其它服务小区的信道占用率比所述主小区群组或主辅助小区群组中的任一小区的信道占用率低第六阈值时，通过所述其它服务小区替换所述任一小区；和/或
    在所述主小区群组或主辅助小区群组之外的其它服务小区的RSRP/RSRQ大于或等于第七阈值和/或所述其它服务小区的信道占用率小于或等于第八阈值，且所述主小区群组或主辅助小区群组中的任一小区的RSRP/RSRQ小于或等于第九阈值和/或所述任一小区的信道占用率大于或等于第十阈值时，通过所述其它服务小区替换所述任一小区。
  23. 一种通信装置，其特征在于，包括：
    确定单元，设置为确定工作在非授权载波上的主小区群组或主辅助小区群组，其中，所述主小区群组或主辅助小区群组是从工作在非授权载波上的至少一个服务小区中进行选择而组成的，每个所述服务小区工作在一个非授权载波上；
    通信单元，设置为与所述主小区群组或主辅助小区群组中的小区进行通信。
  24. 一种通信方法，其特征在于，包括：
    终端确定工作在非授权载波上的主小区群组或主辅助小区群组；
    与所述主小区群组或主辅助小区群组中的小区进行通信；
    其中，所述主小区群组或主辅助小区群组是从工作在非授权载波上的至少一个服务小区中进行选择而组成的，每个所述服务小区工作在一个非授权载波上。
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