WO2022022679A1 - 一种信号传输的方法及其相关设备 - Google Patents
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- WO2022022679A1 WO2022022679A1 PCT/CN2021/109575 CN2021109575W WO2022022679A1 WO 2022022679 A1 WO2022022679 A1 WO 2022022679A1 CN 2021109575 W CN2021109575 W CN 2021109575W WO 2022022679 A1 WO2022022679 A1 WO 2022022679A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present application relates to the field of communication technologies, and in particular, to a signal transmission method and related devices.
- Symbol shutdown is a power saving technique in long term evolution (LTE) systems.
- LTE long term evolution
- OFDM orthogonal frequency division multiplexing
- the network device When the symbol is turned off, in order to ensure normal communication between the terminal device and the network device, the network device needs to send the CRS in at least 4 OFDM symbols in a subframe. On this basis, how to further reduce the power consumption of network equipment on the premise of ensuring that the communication performance of the terminal equipment (for example, the performance of the terminal equipment to quickly respond to service requirements, the throughput performance of the terminal equipment, etc.) issues that need to be addressed urgently.
- the embodiments of the present application provide a signal transmission method and related devices, which can turn off the CRS in the subframe on the premise that the communication performance of the terminal device is not degraded, thereby further reducing the power consumption of the network device.
- a first aspect of the embodiments of the present application provides a method for signal transmission.
- the method may be executed by a network device, or may be executed by a component of the network device (for example, a processor, a chip, or a chip system, etc.)
- the method includes: the network device first acquires N parameters of the target cell, where the N parameters are used to indicate the real-time status of the target cell, and N is an integer greater than or equal to 1.
- the network device determines that at least one of the N parameters is less than or equal to a corresponding threshold, and determines that each connected terminal device in the target cell is in a discontinuous reception (DRX) sleep period or within the target cell
- DRX discontinuous reception
- the network device may first obtain N parameters of the target cell, where N is an integer greater than or equal to 1.
- N is an integer greater than or equal to 1.
- each parameter can be used to indicate the real-time status of the target cell, for example, the load status and/or performance status of the target cell, and so on.
- the network device may determine whether at least one of the N parameters is less than or equal to a corresponding threshold. If the network device determines that at least one of the N parameters is less than or equal to the corresponding threshold, it then determines that each connected terminal device in the target cell is in the DRX sleep period or there is no connected terminal in the target cell.
- the network device may send less CRS. Specifically, in the first subframe of the target cell, the network device turns off at least one first OFDM symbol, where the first OFDM symbol is used to carry the CRS corresponding to the first port and/or the second port.
- the network device determines that at least one of the N parameters is less than or equal to the corresponding threshold, and determines that each connected terminal device in the target cell is in the DRX sleep period or has no connected terminal in the target cell. After that, at least one first OFDM symbol is turned off in the first subframe, and the first OFDM symbol can be used to carry the CRS corresponding to the first port and/or the second port. Since each connected terminal device in the target cell is in the DRX sleep period or there is no connected state terminal in the target cell, the network device turns off the CRS on at least one OFDM symbol in the first subframe, which will not affect the terminal device's communication performance. Therefore, compared with the traditional symbol turn-off technology, the embodiments of the present application can turn off more OFDM symbols on the premise that the communication performance of the terminal device is not degraded, so as to further reduce the power consumption of the network device.
- the network device may selectively turn off several first OFDM symbols in the first subframe.
- the number of first OFDM symbols to be turned off is 1, 2, ..., M-1 or M, which improves the flexibility and selectivity of the scheme.
- both the CRS corresponding to the first port and the CRS corresponding to the second port are used to instruct the terminal device to measure the reference signal receiving power (RSRP) of the target cell.
- RSRP reference signal receiving power
- the network device determining that each connected state terminal device in the target cell is in the DRX sleep period includes: the network device determining that each connected state terminal device in the target cell is in the DRX sleep period, wherein, The DRX cycle of each connected state terminal device has the same start time and the same end time. It can be seen from the foregoing implementation manner that the network device can align the DRX cycles of all connected terminal devices in the target cell in advance, and then obtain the status of each connected terminal device in real time, so as to determine whether all connected terminal devices in the target cell are in DRX sleep period.
- the network device determining that each connected state terminal device in the target cell is in the DRX sleep period or the target cell has no connected state terminal device includes: the network device determining each connected state terminal device in the target cell The devices are all in the DRX sleep period or there are no connected terminals in the target cell. The start time or end time of the DRX cycle of each connected terminal is not necessarily the same, and the network device can still obtain the status of each connected terminal in real time. Determine whether all connected terminal devices in the target cell are in the DRX sleep period.
- the network device turning off at least one first OFDM symbol in the first subframe of the target cell includes: the network device is in the first subframe of the target cell. In the subframe, at least one first OFDM symbol and each second OFDM symbol are turned off, and each second OFDM symbol is used to carry CRSs corresponding to the remaining ports except the first port and the second port. It can be seen from the foregoing implementation manner that when the target cell is configured with at least 3 ports, the network device can transmit less CRSs corresponding to the first port and the second port in the first subframe, and do not transmit any CRS except the first port and the second port. The CRSs corresponding to the remaining ports are turned off, so that the CRSs on multiple OFDM symbols are turned off, so as to reduce the power consumption of the network device.
- the network device may select the serial number to be 1, 2, 3, 6, 7 or 8, and in fact no
- the subframe carrying the system information block (system information block, SIB) message and/or the radio access response (radio access response, RAR) message is used as the first subframe of the target cell.
- SIB system information block
- RAR radio access response
- the network device can choose the sequence number to be 3, 4, 7, 8 or 9, and actually does not carry SIB messages and/or the subframe of the RAR message, as the first subframe of the target cell.
- TDD time division duplexing
- the method further includes: the network device determines that at least one parameter is less than or equal to a corresponding threshold, and determines that each connected terminal device in the target cell is In the discontinuous reception DRX sleep period or after there is no connected state terminal in the target cell, in the second subframe of the target cell, each second OFDM symbol is turned off and the first OFDM symbol is not turned off.
- the network device can normally send the CRS corresponding to the first port and the second port in the second subframe, instead of sending the CRS corresponding to the first port and the second port in the second subframe.
- the CRSs corresponding to the remaining ports are used to further reduce the power consumption of the network equipment.
- the network device can select a sequence number of 4, 5 or 9, and does not carry a non-paging occasion (paging occasion, PO) of SIB messages and/or RAR messages ) subframe is taken as the second subframe of the target cell, and the second number is determined to be 4.
- the network device may select a non-PO subframe with a sequence number of 1, 5 or 6 and no SIB message and/or RAR message as the first subframe of the target cell. Two subframes, and the second number is determined to be 4, 3, 2 or 1.
- the method further includes: the network device sends notification information to terminal equipment located in a neighboring cell of the target cell, where the notification information is used to indicate that the terminal equipment in the neighboring cell is in a third location of the target cell.
- the CRS corresponding to the first port and/or the second port is received. If the target cell is an FDD-based cell, the sequence number of the third subframe is 0, 4, 5 or 9. If the target cell is a TDD-based cell, the sequence number of the third subframe is 0, 1, 5 or 6.
- the network equipment can notify the neighboring cell terminal equipment to receive the CRS corresponding to the first port and/or the second port in the third subframe of the target cell, thereby ensuring that the neighboring cell terminal equipment can normally measure the target cell's CRS. RSRP.
- the first port is protocol port (port) 0, and the second port is port1.
- the N parameters include: one or more of parameters such as uplink service load, downlink service load, the number of terminal devices, the rate of information transmission, and the delay of information transmission, so that the network device The load status and performance status of the target cell, etc. are determined based on at least one of the N parameters.
- a second aspect of the embodiments of the present application provides a method for signal transmission.
- the method may be executed by a network device, or may be executed by a component of the network device (for example, a processor, a chip, or a chip system, etc.)
- the method includes: the network device first obtains N parameters of the secondary carrier cell, the N parameters are used to indicate the real-time status of the secondary carrier cell, and N is an integer greater than or equal to 1; determining at least one of the N parameters One of the parameters is less than or equal to the corresponding threshold, and after it is determined that the secondary carrier cell is in the first state, in the first subframe of the secondary carrier cell, at least one first OFDM symbol is turned off, and the first OFDM symbol is used to carry CRS corresponding to the first port and/or the second port.
- the network device may first acquire N parameters of the secondary carrier cell, where N is an integer greater than or equal to 1.
- N is an integer greater than or equal to 1.
- each parameter can be used to indicate the real-time status of the secondary carrier cell, for example, the load status and/or performance status of the secondary carrier cell, and so on.
- the network device may determine whether at least one of the N parameters is less than or equal to a corresponding threshold. If the network device determines that at least one of the N parameters is less than or equal to the corresponding threshold, the network device then determines the state of the secondary carrier cell.
- the network device turns off at least one first OFDM symbol in the first subframe of the secondary carrier cell, where the first OFDM symbol is used to carry the CRS corresponding to the first port and/or the second port.
- the network device determines that at least one of the N parameters of the secondary carrier cell is less than or equal to the corresponding threshold, and determines that the secondary carrier cell has been configured to the terminal device and is not activated, the network device network device In the first subframe of the secondary carrier cell, at least one first OFDM symbol is turned off, and the first OFDM symbol is used to carry the CRS corresponding to the first port and/or the second port. Since the secondary carrier cell is in the first state, the network device turns off the CRS on at least one OFDM symbol in the first subframe, which will not affect the communication performance of the terminal device. Therefore, compared with the traditional symbol turn-off technology, the embodiments of the present application can turn off more OFDM symbols on the premise that the communication performance of the terminal device is not degraded, so as to further reduce the power consumption of the network device.
- the network device may selectively turn off several first OFDM symbols in the first subframe.
- the number of first OFDM symbols to be turned off is 1, 2, ..., M-1 or M, which improves the flexibility and selectivity of the scheme.
- the CRS corresponding to the first port and the CRS corresponding to the second port are both used to instruct the terminal device to measure the RSRP of the secondary carrier cell.
- the network device turning off at least one first OFDM symbol in the first subframe of the secondary carrier cell includes: the network device is in the secondary carrier cell In the first subframe of , at least one first OFDM symbol and each second OFDM symbol are turned off, and each second OFDM symbol is used to carry CRSs corresponding to the remaining ports except the first port and the second port.
- the network device can transmit less CRSs corresponding to the first port and the second port in the first subframe, and do not transmit any CRS except the first port and the second port.
- the CRSs corresponding to the remaining ports are turned off, so that the CRSs on multiple OFDM symbols are turned off, so as to reduce the power consumption of the network device.
- the network device may select a subframe with a sequence number of 1, 2, 3, 4, 5, 6, 7, 8 or 9 as the secondary carrier cell the first subframe of .
- the network device may select a subframe with a sequence number of 1, 3, 4, 5, 6, 7, 8 or 9 as the first subframe of the secondary carrier cell. a subframe.
- the method further includes: the network device determines that at least one parameter is less than or equal to a corresponding threshold, and determines that the secondary carrier cell is in the second state, then keeps silent in each subframe of the secondary carrier cell, In order to further reduce the power consumption of network equipment.
- the method further includes: the network device determines that at least one parameter is less than or equal to a corresponding threshold, and determines that the secondary carrier cell is in the first state, and then does not send physical data in each subframe of the secondary carrier cell.
- Control format indicator channel (physical control format indicator channel, PCFICH), physical hybrid automatic repeat indicator channel (physical hybrid arq indicator channel, PHICH), downlink physical control channel (physical downlink control channel, PDCCH) and downlink physical shared channel (physical downlink shared channel, PDSCH) to further reduce the power consumption of network devices.
- the method further includes: the network device determines that at least one parameter is less than or equal to a corresponding threshold, and determines that the secondary carrier cell is in the third state, then does not send the PHICH in each subframe of the secondary carrier cell , common PDCCH, paging messages, SIB messages and RAR messages to further reduce the power consumption of network devices.
- the first state is that the secondary carrier cell has been configured to the terminal device and is not activated.
- the second state is that the secondary carrier cell is not configured to the terminal device.
- the third state is that the secondary carrier cell has been configured to the terminal device and has been activated.
- the first port is port0
- the second port is port1.
- the N parameters include: one or more of parameters such as uplink service load, downlink service load, the number of terminal devices, the rate of information transmission, and the delay of information transmission, so that the network device The load status and performance status of the target cell, etc. are determined based on at least one of the N parameters.
- a third aspect of the embodiments of the present application provides a processor, configured to execute the method described in any one of the foregoing first aspect or the second aspect.
- a fourth aspect of the embodiments of the present application provides a network device, where the network device includes a unit for executing any one of the methods in the first aspect.
- a transceiving unit (which may include a transmitting unit and a receiving unit), configured to perform the operation of sending and receiving signals or information in any one of the solutions in the first aspect; and a processing unit, configured to perform any one of the first aspect. Operations other than sending and receiving in the scheme, such as information determination, etc.
- a fifth aspect of the embodiments of the present application provides a network device, where the network device includes a unit for executing any one of the methods in the second aspect.
- a transceiving unit (which may include a sending unit and a receiving unit), configured to perform the operation of sending and receiving signals or information in any one of the solutions in the second aspect; and a processing unit, configured to perform any one of the second aspect. Operations other than sending and receiving in the scheme, such as information determination, etc.
- a sixth aspect of the embodiments of the present application provides a communication apparatus, and the communication apparatus may be a network device in the above method design, or a chip provided in a terminal device.
- the communication apparatus includes: a processor, coupled with a memory, for executing computer programs or instructions in the memory, so as to implement the method executed by the network device in any possible implementation manner of the above solution.
- the communication device further includes a memory.
- the communication device further includes a communication interface, and the processor is coupled to the communication interface.
- the communication interface may be a transceiver, or an input/output interface, for signal transmission and reception, or input/output of computer programs or instructions.
- the communication interface may be an input/output interface, used for signal transmission and reception, or input/output of computer programs or instructions, wherein the input corresponds to the operation of receiving or obtaining, and the output The corresponding send operation.
- the transceiver may be a transceiver circuit.
- the input/output interface may be an input/output circuit.
- a seventh aspect of the embodiments of the present application provides a computer program, which, when executed by a processor, is used to execute the method described in any one of the first aspect or the second aspect.
- An eighth aspect of the embodiments of the present application provides a computer program product, the program product includes: computer program code, when the program code is executed by a communication unit, a processing unit or a transceiver, When the processor runs, the communication device is caused to perform the method described in any one of the first aspect or the second aspect.
- a ninth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program or instruction, and the computer program or instruction causes a communication apparatus (for example, a network device) to execute the above-mentioned first The method of one aspect or the second aspect.
- a communication apparatus for example, a network device
- the transceiver or the transceiver unit can be replaced with an input/output interface, the receiving operation corresponds to input or acquisition, and the sending operation corresponds to output.
- the embodiments of the present application have the following advantages:
- the network device determines that at least one of the N parameters is less than or equal to the corresponding threshold, and determines that each connected terminal device in the target cell is in the DRX sleep period or after there is no connected terminal in the target cell , then at least one first OFDM symbol is turned off in the first subframe, and the first OFDM symbol can be used to carry the CRS corresponding to the first port and/or the second port. Since each connected terminal device in the target cell is in the DRX sleep period or there is no connected state terminal in the target cell, the network device turns off the CRS on at least one OFDM symbol in the first subframe, which will not affect the terminal device's communication performance. Therefore, compared with the existing symbol turn-off technology, the embodiment of the present application can turn off more OFDM symbols on the premise that the communication performance of the terminal device is not degraded, so as to further reduce the power consumption of the network device.
- FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application
- FIG. 2 is a schematic flowchart of a method for signal transmission provided by an embodiment of the present application
- FIG. 3 is a schematic diagram of a DRX cycle provided by an embodiment of the present application.
- FIG. 4 is a schematic diagram of a subframe of a target cell provided by an embodiment of the present application.
- FIG. 5 is another schematic diagram of a subframe of a target cell provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of a first subframe provided by an embodiment of the present application.
- FIG. 7 is another schematic diagram of a first subframe provided by an embodiment of the present application.
- FIG. 8 is another schematic diagram of a first subframe provided by an embodiment of the present application.
- FIG. 9 is still another schematic diagram of a first subframe provided by an embodiment of the present application.
- FIG. 10 is another schematic flowchart of a signal transmission method provided by an embodiment of the present application.
- FIG. 11 is a schematic diagram of a multi-carrier scenario provided by an embodiment of the present application.
- FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of the present application.
- FIG. 13 is another schematic structural diagram of a network device provided by an embodiment of the present application.
- FIG. 14 is another schematic structural diagram of a network device provided by an embodiment of the present application.
- the naming or numbering of the steps in this application does not mean that the steps in the method flow must be executed in the time/logical sequence indicated by the naming or numbering, and the named or numbered process steps can be implemented according to the The technical purpose is to change the execution order, as long as the same or similar technical effects can be achieved.
- the division of units in this application is a logical division. In practical applications, there may be other division methods. For example, multiple units may be combined or integrated into another system, or some features may be ignored. , or not implemented, in addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, and the indirect coupling or communication connection between units may be electrical or other similar forms. There are no restrictions in the application.
- units or sub-units described as separate components may or may not be physically separated, may or may not be physical units, or may be distributed into multiple circuit units, and some or all of them may be selected according to actual needs. unit to achieve the purpose of the scheme of this application.
- At least one refers to one or more, and "a plurality” refers to two or more.
- And/or which describes the association relationship of the associated objects, means that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
- the character “/” generally indicates that the associated objects are an “or” relationship.
- At least one (item) of the following or its similar expression refers to any combination of these items, including any combination of single item (item) or plural item (item).
- At least one (a) of a, b or c may represent: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b, c Can be single or multiple.
- the technical solutions of the embodiments of the present application can be applied to various LTE communication systems, such as FDD and TDD systems.
- the term "system” is interchangeable with "network”.
- the communication system may also be applicable to future-oriented communication technologies, and the technical solutions provided by the embodiments of the present application are all applicable.
- the system architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
- the evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
- FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application.
- the application scenario includes a terminal device 101 and a network device 102 .
- the terminal device 101 is wirelessly connected to the network device 102, and the network device 102 is used to access the terminal device 101 to the wireless network.
- the terminal device 101 is also called user equipment (UE), mobile station (MS), mobile terminal (MT), etc., and is a device that provides voice and/or data connectivity to users.
- the device, or a chip provided in the device for example, a handheld device, a vehicle-mounted device, etc. with a wireless connection function.
- some examples of terminal devices are: mobile phone (mobile phone), tablet computer, notebook computer, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart grid wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, etc.
- the network device 102 may be any device with a wireless transceiver function, or a chip provided in a specific wireless transceiver function device.
- the network equipment 102 includes but is not limited to: base stations (eg, base station BS, base station NodeB, evolved base station eNodeB or eNB, base station gNodeB or gNB in the fifth generation 5G communication system, base station in future communication system, access in WiFi system) node, wireless relay node, wireless backhaul node), etc.
- the base station can be: a macro base station, a micro base station, a pico base station, a small base station, a relay station, and the like. Multiple base stations may support a network of one or more technologies mentioned above, or a future evolution network.
- a base station may contain one or more co-sited or non-co-sited transmission reception points (TRPs).
- the network device 102 may also be a wireless controller, a central unit (central unit, CU), or a distributed unit (distributed unit, DU), etc. in a cloud radio access network (cloud radio access network, CRAN) scenario.
- the following description will be given by taking the network device 102 as a base station as an example.
- the multiple network devices 102 may be base stations of the same type, or may be base stations of different types.
- the base station can communicate with the terminal device 101, and can also communicate with the terminal device 101 through a relay station.
- the terminal device 101 can support communication with multiple base stations of different technologies.
- the terminal device 101 can support communication with a base station supporting an LTE network, a base station supporting a 5G network, and a base station supporting an LTE network. Dual connectivity of base stations for 5G networks.
- the terminal device 101 is connected to a RAN node of the wireless network.
- RAN nodes are: gNB, TRP, evolved Node B (evolved Node B, eNB), next generation evolved Node B (next generation evolved Node B, LTE ng-eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B , HNB), base band unit (BBU), or Wifi access point (access point, AP), etc.
- RNC radio network controller
- Node B Node B
- BSC base station controller
- BTS base transceiver station
- BTS home base station
- home base station for example, home evolved NodeB, or home Node B , HNB
- BBU base band unit
- Wifi access point access point, AP
- energy-saving techniques such as symbol shutdown can generally be performed.
- the network device 102 needs to send the CRS in at least 4 OFDM symbols of a subframe.
- how to further reduce the power consumption of the network device 102 on the premise that the communication performance of the terminal device 101 is not degraded has become an urgent problem to be solved.
- FIG. 2 is a schematic flowchart of a signal transmission method provided by an embodiment of the present application.
- the method may be executed by a network device, or may be executed by a component of the network device (such as a processor, a chip, or a chip system, etc.). Taking the execution by a network device as an example, the method includes:
- the network device acquires N parameters of the target cell, where the N parameters are used to indicate the real-time status of the target cell, and N is an integer greater than or equal to 1.
- the network device may acquire N parameters of the target cell in real time.
- each parameter may be used to indicate the real-time status of the target cell, for example, the load status and/or the performance status, and so on.
- the N parameters acquired by the network device may include parameters such as uplink traffic load, downlink traffic load, the number of terminal devices in the target cell, the rate of information transmission, and the delay of information transmission, etc. one or more.
- the network device may obtain the downlink traffic load of the target cell, that is, determine that the utilization rate of downlink physical resource blocks (PRBs) of the target cell is 50%.
- PRBs physical resource blocks
- the network device may acquire that the number of connected terminal devices in the target cell is 15 and so on.
- the target cell can be a cell in various scenarios, and can also be called a carrier in various scenarios, which will be introduced separately below:
- the target cell may be a cell in a single-carrier scenario (also referred to as a single-carrier cell), and a single-carrier cell is a single carrier allocated by a network device to a certain sector.
- a single-carrier cell is a single carrier allocated by a network device to a certain sector.
- the target cell may be a primary carrier cell or a secondary carrier cell in a multi-carrier scenario.
- CA carrier aggregation
- a network device can allocate one primary carrier and at least one secondary carrier to terminal devices of a certain sector.
- the primary carrier cell is the primary carrier allocated by the network equipment to the terminal equipment of a certain sector
- the secondary carrier cell is the secondary carrier allocated by the network equipment to the terminal equipment of a certain sector.
- the network device determines that at least one of the N parameters is less than or equal to the corresponding threshold, and determines that each connected terminal device in the target cell is in the DRX sleep period or has no connected terminal in the target cell, then the target In the first subframe of the cell, at least one first OFDM symbol is turned off, and the first OFDM symbol is used to carry the CRS corresponding to the first port and/or the second port.
- the network device may select one or more parameters from the N parameters for judgment. For example, the network device can select a certain parameter from N parameters, and judge whether the parameter is less than or equal to the corresponding threshold. For another example, the network device can select multiple parameters from the N parameters, and judge each selected parameter separately. Whether each parameter is less than or equal to the corresponding threshold.
- the network device is set with a corresponding threshold for each of the N parameters, and the threshold can be set in various ways. In a possible implementation manner, the network device may be preset with a threshold corresponding to each parameter in advance. In another possible implementation manner, the network device may dynamically set the threshold corresponding to each parameter based on the indication information of the terminal device in the target cell. In another possible implementation manner, the network device may also dynamically set the threshold corresponding to each parameter based on the real-time condition of the target cell.
- the above-mentioned threshold value may be a specific numerical value.
- the description is given by taking the parameter being the number of connected terminal devices in the target cell as an example.
- the threshold corresponding to the number of connected terminal devices is 20, at this time, it is equivalent to that the network device has set a value range or a condition for this parameter, that is, the number of connected terminal devices in the target cell is between 0 and 0. If it is within the range of 20, it is determined that the parameter satisfies the condition, and if it is outside the range of 0 to 20, it is determined that the parameter does not meet the condition. For example, when the network device determines that the number of connected terminal devices in the target cell is 15, it is determined that the parameter satisfies the condition, and the next step of judgment can be entered.
- the network device determines whether all terminal devices in the target cell are in the DRX sleep period. In another possible implementation manner, if the network device determines that at least one of the N parameters is less than or equal to the corresponding threshold, the network device may also determine whether there is a connected terminal in the target cell.
- the terminal device in the connected state refers to a terminal device that has established a radio resource control (RRC) connection with the network device
- the DRX cycle of the terminal device in the connected state includes a DRX activation period and a DRX sleep period. Therefore, in this embodiment, when all terminal equipments in the target cell are in the DRX sleep period, it can be understood that all connected terminal equipments in the target cell are in the DRX sleep period.
- at least one terminal equipment in the target cell is in the DRX activation period, it can be understood as the target cell.
- At least one connected terminal device in the cell is in the DRX activation period, and there is no connected state terminal in the target cell, which can be understood as no terminal in the cell has established an RRC connection with the network device, which will not be described in detail later.
- the network device may align the DRX cycles of all connected state terminal devices in the target cell, that is, the DRX cycles of all connected state terminal devices in the target cell are of equal length, and all connected state terminal devices have the same length.
- the DRX cycles have the same start time and the same end time. It is worth noting that although the DRX cycles of all terminal devices are aligned, the lengths of the DRX activation periods of different terminal devices may be the same or different. Similarly, the lengths of the DRX sleep periods of different terminal devices may be the same or different. For example, it is assumed that terminal equipments A, B, and C are located in the same target cell, and the DRX cycles of the three terminal equipments are all 20ms and are aligned.
- the DRX activation period of terminal equipment A is 5ms
- the DRX activation period of terminal equipment B is 5ms
- the DRX activation period of terminal equipment C is 10ms
- the DRX sleep period of terminal equipment A is 15ms
- the DRX sleep period of terminal equipment B is 15ms
- the DRX sleep period of terminal device C is 10ms
- the network device can determine the state of the current time by monitoring which stage of the DRX cycle of the three terminal devices the current time is in. Time 0 is used as the start time of the DRX cycle of the three terminal devices.
- the network device determines that the current time falls within the DRX activation period of the terminal devices A, B, and C, and can determine that the target cell enters the DRX activation period. If the current time is the 8th ms, the network device determines that the current time falls within the DRX activation period of the terminal device C, and can determine that the target cell enters the DRX activation period. If the current time is the 15th ms, the network device determines that the current time falls within the DRX activation period of the terminal. In the DRX sleep period of devices A, B, and C, it can be determined that the target cell enters the DRX sleep period.
- the network device determines that at least one terminal device in the target cell is in the DRX active period, it can be determined that the target cell enters the DRX active period at the current time, and if the network device determines that all terminal devices in the target cell are in the DRX dormant period, it can be determined that The target cell enters the DRX sleep period at the current time.
- the network device can also determine which stage of the DRX cycle all connected terminal devices in the target cell are in, that is, in the DRX activation period or in the DRX sleep period), and the network device can determine the target cell in real time.
- the time domain information ie, the subframe of the target cell is in which phase of the DRX cycle of all connected terminal devices, that is, in the DRX active period or in the DRX sleep period.
- FIG. 3 is a schematic diagram of a DRX cycle provided by an embodiment of the present application. As shown in FIG. 3 , for the convenience of drawing, the DRX cycle is set to be 20ms, the target cell includes a plurality of subframes, and every 10 subframes constitute a frame.
- the DRX active period and the DRX dormant period alternately occur. Therefore, some subframes of the target cell are in the DRX active period, and another part of the subframes are in the DRX dormant period.
- the sequence numbers of 10 subframes included in each frame are respectively 0 to 9, and subframes with different sequence numbers can carry the same signal or different signals.
- the subframe in this embodiment is an example of a non-multicast broadcast single frequency network (multicast broadcast single frequency network, MBSFN) subframe.
- MBSFN multicast broadcast single frequency network
- the subframe in this embodiment may be an FDD-based downlink subframe, which may include 14 OFDM symbols or 12 OFDM symbols.
- the subframes in this embodiment may be TDD-based downlink subframes and special subframes, which may include 14 OFDM symbols or 12 OFDM symbols symbol.
- the following description and the accompanying drawings take an example that a subframe includes 14 OFDM symbols as an example.
- the network device When at least one terminal device in the target cell is in the DRX activation period (hereinafter referred to as entering the DRX activation period for the convenience of description) and all terminal devices in the target cell are in the DRX dormancy period (hereinafter referred to as entering the DRX dormancy period), the network device is in the DRX dormancy period.
- Different CRS processing is performed in the subframes of the target cell respectively. It can be understood that, in the case where the target cell has no connected terminal, the CRS processing performed by the network device can be the same as when all terminal devices in the target cell process the DRX sleep period.
- FIG. 4 is a schematic diagram of a subframe of a target cell according to an embodiment of the present application.
- some OFDM symbols are set to transmit (carry) the CRS configured for port0 (also called with The CRS corresponding to port0, ie R0) and/or the CRS configured for port1 (also referred to as the CRS corresponding to port1, ie R1), the OFDM symbol used for sending R0 and/or R1 is the first OFDM symbol.
- the OFDM symbols that are set to transmit the remaining CRSs except R0 and R1, such as the CRS configured for port2 (ie R2), the CRS configured for port3 (ie R3), etc.
- the OFDM symbols of the remaining CRSs other than R0 and R1 are the second OFDM symbols, which will not be described in detail later.
- the network device When the network device determines that at least one terminal device in the target cell is in the DRX activation period, the network device normally sends the CRS in each subframe of the target cell. If the target cell is configured with different numbers of protocol ports, when the network device normally sends the CRS, it also corresponds to different situations. As shown in Figure 4, it is assumed that the target cell is configured with two protocol ports, namely port0 and port1. After entering the DRX activation period, the network device may send R0 and R1 in four first OFDM symbols in each subframe of the target cell.
- FIG. 4 only takes the example that the target cell is equipped with two ports for schematic illustration, and does not limit the number of ports configured in the target cell in this application.
- the target cell may also be configured with only one protocol port, that is, port0.
- the network device may send R0 in four first OFDM symbols in each subframe of the target cell.
- FIG. 5 which is another schematic diagram of a subframe of a target cell provided by an embodiment of the present application
- the network device may send R0 and R1 in four first OFDM symbols, and send R2 and R3 in two second OFDM symbols.
- FIG. 4 and FIG. 5 only take the FDD-based downlink subframe as an example for schematic illustration.
- the subframes of the target cell can also be TDD-based downlink subframes and special subframes.
- the network device normally sends CRS in the TDD-based downlink subframe, please refer to the aforementioned network device to normally send CRS in the FDD-based downlink subframe. related descriptions, which will not be repeated here.
- a network device when a network device normally sends CRS in a TDD-based special subframe, it can only send CRS in the downlink pilot time slot (DwPTS) in the special subframe, while the DwPTS contains The number of OFDM symbols varies with different special subframe configurations.
- DwPTS downlink pilot time slot
- the DwPTS in the special subframe only includes 3 OFDM symbols.
- the network device can only send R0 and R1 in one first OFDM symbol in the special subframe at most.
- the network device may send R0 and R1 in one first OFDM symbol of the special subframe, and send R2 and R3 in one second OFDM symbol.
- the special subframe ratio is 1, the DwPTS in the special subframe includes 9 OFDM symbols. At this time, if the target cell is configured with 2 ports, the network device can transmit R0 and R1 in the first OFDM symbols in the special subframe at most.
- the 3 first OFDM symbols of the subframe are sent as R0 and R1, and the 2 second OFDM symbols are sent as R2 and R3.
- the DwPTS in the special subframe includes 12 OFDM symbols.
- the network device can transmit R0 and R1 in the four first OFDM symbols of the special subframe at most.
- the frame is sent as R0 and R1 in the 4 first OFDM symbols and as R2 and R3 in the 2 second OFDM symbols.
- the network device determines that all terminal devices in the target cell are in the DRX sleep period, less CRS may be sent, that is, the network device turns off at least one first OFDM symbol in the first subframe of the target cell. It can be understood that when a certain first OFDM symbol is turned off, that is, on the first OFDM symbol, the network device does not send CRS.
- the first subframe of the target cell generally refers to a part of the subframes in each frame of the target cell, and is a subframe with a specific sequence number.
- the first subframe may be an FDD-based downlink subframe or a TDD-based downlink subframe, which will be introduced separately below:
- the target cell is an FDD-based cell
- subframes with sequence numbers 1, 2, 3, 6, 7, or 8 in each frame of the target cell some of these subframes
- the OFDM symbol is used to carry the CRS (for example, the first OFDM symbol and the second OFDM symbol, etc.), while another part of the OFDM symbol can be used to carry other signals (but actually bear the specific communication requirements), that is, this part
- Other signals such as SIB messages, RAR messages, etc., may be carried in the subframe.
- the network device may select the subframe that does not actually carry the SIB message and/or the RAR message, as the first subframe of the target cell.
- the target cell is a TDD-based cell
- the subframes with sequence numbers 3, 4, 7, 8 or 9 in each frame of the target cell that is, the sequence numbers are 3, 4, 7 , 8 or 9 downlink subframes
- a part of OFDM symbols in this subframe is used to carry CRS
- another part of OFDM symbols can be used to carry other signals, such as SIB messages, RAR messages and so on.
- the network device may select the subframe that does not actually carry the SIB message and/or the RAR message, as the first subframe of the target cell.
- the network device may transmit less CRS in the first subframe.
- the network device can transmit less CRS in various ways, which will be described below with reference to FIG. 6 to FIG. 9 .
- FIG. 6 is a schematic diagram of a first subframe provided by an embodiment of the present application
- FIG. 7 is another schematic diagram of a first subframe provided by an embodiment of the present application
- FIG. 8 is another schematic diagram of the first subframe provided by an embodiment of the present application.
- a schematic diagram, FIG. 9 is still another schematic diagram of a first subframe provided by an embodiment of the present application.
- the target cell is an FDD-based cell and is configured with one port (ie, port0).
- the network device turns off at least one (ie, 4, 3, 2, or 1) first OFDM symbol in the first subframe, that is, in the first subframe, either no R0 is sent, or in the 1, 2, or 3 th R0 is sent in one OFDM symbol (in FIG. 6 , three first OFDM symbols are turned off, that is, R0 is only sent in one first OFDM symbol as an example).
- the CRS on 1 to 4 OFDM symbols can be turned off.
- the network device turns off at least one first OFDM symbol in the first subframe, that is, Either R0 and R1 are not sent in the first subframe, or R0 and R1 are sent in 1, 2 or 3 first OFDM symbols (in FIG. Sending R0 and R1 in one OFDM symbol is taken as an example.
- FIG. 8 two first OFDM symbols are turned off, that is, R0 and R1 are only sent in two first OFDM symbols.
- FIG. 9 one first OFDM symbol is turned off. symbols, i.e. R0 and R1 are only sent in the 3 first OFDM symbols as an example).
- the CRS on 1 to 4 OFDM symbols can be turned off.
- the network device turns off at least one first port in the first subframe.
- OFDM symbol and one second OFDM symbol that is, the network device either does not transmit CRS in the first subframe, or only transmits R0 and R1 in 1, 2 or 3 first OFDM symbols, and only in 1 second OFDM symbol R2 and R3 are sent on the symbol.
- the target cell is further configured with more ports, for example, 8 ports, etc., the network device turns off at least one first OFDM symbol and part of the second OFDM symbol in the first subframe.
- the network device turns off at least one first port in the first subframe.
- the OFDM symbol and all second OFDM symbols that is, the network device either does not transmit CRS in the first subframe, or only transmits R0 and R1 in 1, 2 or 3 first OFDM symbols, and does not transmit R2 and R3 (if The network device sends R0 and R1 in one first OFDM symbol in the first subframe, which can be the same as the situation shown in Figure 7. If the network device sends R0 and R1 in two first OFDM symbols in the first subframe , which can be the same as the situation shown in FIG.
- the network device transmits R0 and R1 in the three first OFDM symbols in the first subframe, it can be the same as the situation shown in FIG. 9 ). Compared with the case where the CRS is normally transmitted, the CRS on 3 to 6 OFDM symbols can be turned off.
- the network device also sends R0 and R1 only in 1, 2 or 3 first OFDM symbols of the first subframe, that is, the network In the first subframe, the device either does not send CRS, or only sends R0 and R1 without sending R2, R3 and other CRSs.
- the target cell is a TDD-based cell and the first subframe is a TDD-based downlink subframe, since the structures of the FDD-based downlink subframe and the TDD-based downlink subframe are similar, then For the relevant description of the network device sending less CRS in the downlink subframe based on TDD, reference may be made to the above description, which will not be repeated here.
- the network equipment After entering the DRX dormancy period, the network equipment transmits less CRS in the first subframe of the target cell, as shown in Table 2:
- the network normally sends the CRS in the remaining subframes except the first subframe.
- the network can not only transmit less CRS in the first subframe of the target cell, but can also transmit less CRS in the second subframe of the target cell.
- the second subframe of the target cell generally refers to a part of the subframes in each frame of the target cell, and is a subframe with a specific sequence number.
- the second subframe may be an FDD-based downlink subframe, a TDD-based downlink subframe, or a TDD-based special subframe. The following will be introduced respectively:
- the target cell is an FDD-based cell
- some OFDM symbols in this subframe are used to carry CRS
- another part of the OFDM symbol can be used to carry other signals (actually whether it can carry or not depends on the specific communication requirements), that is, this subframe can carry other signals, such as paging messages, SIB messages, RAR messages and so on.
- this subframe can carry other signals, such as paging messages, SIB messages, RAR messages and so on.
- some subframes can be set as PO subframes in advance, for example, in this subframe with sequence number 4, 5 or 9, the subframe with sequence number 4 can be set as PO subframe frame, indicating that the subframe can be used to carry paging messages.
- the network device may select the subframes that are non-PO subframes and do not actually carry SIB messages and/or RAR messages, as the second subframe of the target cell .
- the target cell is a TDD-based cell
- the subframes (which may be downlink subframes or special subframes) with sequence numbers 1, 5 or 6 in each frame of the target cell )
- a part of OFDM symbols in this subframe is used to carry CRS
- another part of OFDM symbols can be used to carry other signals, such as paging messages, SIB messages, RAR messages and so on.
- the network device may select the subframes that are non-PO subframes and do not actually carry SIB messages and/or RAR messages, as the second subframes of the target cell .
- the network device may transmit less CRS in the second subframe. Specifically, in the second subframe of the target cell, the network device turns off each second OFDM symbol and does not turn off the first OFDM symbol, that is, the network device only normally sends R0 and/or R1 in the second subframe , without sending CRS such as R2 and R3.
- the network device when the second subframe is an FDD-based downlink subframe, the network device only sends R0 and/or R1 on the 4 first OFDM symbols of the second subframe, and does not send R2, R3, etc. CRS.
- the network device When the second subframe is a TDD-based downlink subframe, the network device only sends R0 and/or R1 on the four first OFDM symbols of the second subframe, and does not send CRSs such as R2 and R3.
- the second subframe is a special TDD-based subframe, the network device only sends R0 and/or R1 on 1 to 4 first OFDM symbols of the second subframe, and does not send CRSs such as R2 and R3.
- the network device may also turn off the CRS on at least one OFDM symbol.
- the network equipment After entering the DRX dormancy period, the network equipment transmits less CRS in the second subframe of the target cell, as shown in Table 3:
- the idle state terminal equipment and the terminal equipment located in the adjacent cell of the target cell (also referred to as the adjacent cell terminal equipment) will continuously measure the RSRP of the target cell.
- CRS processing can be performed on the idle terminal equipment and the neighboring cell terminal equipment respectively.
- the network device may send notification information to the neighboring cell terminal equipment through the target cell and the neighboring cell, where the notification information is used to indicate that the neighboring cell terminal equipment receives R0 and/or R1 ( R0 and R1 can be used to instruct the terminal equipment to measure the RSRP of the target cell).
- the third subframe may be a subframe with a sequence number of 0, 4, 5 or 9.
- the third subframe may be a subframe with a sequence number of 0, 1, 5 or 6.
- the subframe with the sequence number 0 needs to carry the Master Information Block (MIB) message, so the network device needs to send the CRS normally in the subframe with the sequence number 0.
- MIB Master Information Block
- the network device In an FDD-based cell, the network device normally transmits at least R0 and/or R1 in the subframes with sequence numbers 4, 5 or 9, and in a TDD-based cell , the network device normally sends at least R0 and/or R1 in the subframe with the sequence number 1, 5 or 6.
- the network equipment at least guarantees normal transmission of R0 and/or R1 in the third subframe, so the neighboring cell terminal equipment can receive R0 and/or R1 in the third subframe of the target cell, thereby ensuring that the RSRP measurement is not will be affected.
- the terminal equipment in the idle state can also receive R0 and/or R1 in the third subframe of the target cell, so as to ensure that the RSRP measurement will not be affected.
- the difference between the idle state terminal device and the neighboring cell terminal device is that the idle state terminal device can receive R0 and/or R1 in the third subframe of the target without notification from the network device.
- the neighboring cell terminal device requires the network device to send a notification message in advance, and then receives R0 and/or R1 in the third subframe of the target based on the notification message.
- the notification message may contain some special disguised information, for example, The notification message can notify the neighboring cell terminal equipment that the target cell is an MBSFN cell (but the target cell is actually a regular cell), so that the neighboring cell terminal equipment receives R0 and/or R1 in the third subframe of the target.
- the network device determines that at least one of the N parameters is less than or equal to the corresponding threshold, and determines that each terminal device in the target cell is in the DRX sleep period, it turns off at least one of the N parameters in the first subframe.
- a first OFDM symbol where the first OFDM symbol may be used to carry the CRS corresponding to the first port and/or the second port. Since each terminal device in the target cell is in the DRX sleep period, the network device turns off the CRS on at least one OFDM symbol in the first subframe, which will not affect the communication performance of the terminal device. Therefore, compared with the traditional symbol turn-off technology, the embodiments of the present application can turn off more OFDM symbols on the premise that the communication performance of the terminal device is not degraded, so as to further reduce the power consumption of the network device.
- FIG. 10 is another schematic flowchart of a signal transmission method provided by an embodiment of the present application.
- the method can be executed by a network device, and can also be executed by a component of the network device (for example, a processor, a chip, or a chip system, etc.). Taking the execution by a network device as an example, the method includes:
- the network device acquires N parameters of the secondary carrier cell, the parameters are used to indicate the real-time status of the secondary carrier cell, and N is an integer greater than or equal to 1.
- the network device can acquire N parameters of the secondary carrier cell in real time.
- each parameter can be used to indicate the real-time status of the secondary carrier cell, such as load status and performance status, etc. Wait.
- the N parameters acquired by the network device may include parameters such as uplink traffic load, downlink traffic load, the number of terminal devices in the secondary carrier cell, the rate of information transmission, and the delay of information transmission. one or more of.
- FIG. 11 is a schematic diagram of a multi-carrier scenario provided by an embodiment of the present application. As shown in FIG. 11 , this embodiment can be applied to a multi-carrier scenario.
- the network device can allocate one primary carrier and at least one secondary carrier to the terminal equipment of a certain sector (n secondary carriers are shown in FIG. 11, n is an integer greater than or equal to 1), and the secondary carrier A cell is a secondary carrier allocated by a network device to a terminal device of a certain sector.
- the network device After determining that at least one of the N parameters is less than or equal to a preset threshold, the network device determines the state of the secondary carrier cell.
- the network device After acquiring the N parameters of the secondary carrier cell, the network device can determine whether at least one of the N parameters is less than or equal to a corresponding threshold. If it is determined that at least one of the N parameters is less than or equal to the corresponding threshold, the network device then determines the state of the secondary carrier cell.
- the secondary carrier cell has three states, which are the first state, the second state and the third state, respectively.
- the first state means: the secondary carrier cell has been configured to the terminal device and is not activated, that is, the secondary carrier cell has been configured by the network device to one or more terminal devices, but the secondary carrier cell has not been activated by the network device.
- the second state means that the secondary carrier cell is not allocated to the terminal equipment, that is, the secondary carrier cell is not allocated to any terminal equipment by the network equipment.
- the third state refers to: the secondary carrier cell has been configured to the terminal equipment and has been activated, that is, the secondary carrier cell has been allocated to one or more terminal equipments by the network equipment, and the secondary carrier cell has been activated by the network equipment.
- the network device After determining that the secondary carrier cell is in the first state, the network device turns off at least one first OFDM symbol in the first subframe of the secondary carrier cell, and the first OFDM symbol is used to carry the first port and/or the second OFDM symbol. CRS corresponding to the port.
- the CRS may be sent less. Specifically, the network device turns off at least one first OFDM symbol in the first subframe of the secondary carrier cell, that is, the network device either does not send R0 and/or R1 in the first subframe of the secondary carrier cell, or Sent in 1, 2 or 3 OFDM symbols as R0 and R1.
- the first subframe of the target cell generally refers to a part of the subframes in each frame of the target cell, and is a subframe with a specific sequence number.
- the first subframe can be determined in various ways, which will be introduced separately below:
- the network device selects the secondary carrier cell with a sequence number of 1, 2, 3, 4, 5, 6, 7, 8 or 9 in each frame , as the first subframe of the secondary carrier cell.
- the network device selects the secondary carrier cell with a sequence number of 1, 3, 4, 5, 6, 7, 8 or 9 in each frame of the secondary carrier cell.
- the subframe (which may be a downlink subframe or a special subframe) is used as the first subframe of the secondary carrier cell.
- the network device may transmit less CRS in the first subframe.
- the network device sending less CRS in the first subframe of the secondary carrier cell please refer to the description of the network device sending less CRS in the first subframe of the target cell in the embodiment shown in FIG. 2 , which is not repeated here. Repeat.
- the network device determines that the secondary carrier cell has been configured to the terminal device and is not activated, in the FDD-based cell or in the TDD-based cell, the subframe with sequence number 0 needs to carry the MIB message, so the network device is in the In the subframe with the sequence number 0, the CRS needs to be sent normally.
- the network device After determining that the secondary carrier cell is in the second state, the network device does not send the CRS in all subframes of the secondary carrier cell.
- the CRS may not be sent, that is, the CRS may not be sent in all subframes of the secondary carrier cell.
- the secondary carrier cell is an FDD-based cell
- all subframes of the secondary carrier cell include subframes with sequence numbers 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
- the secondary carrier cell is a TDD-based cell
- all subframes of the secondary carrier cell include subframes with sequence numbers of 0, 1, 3, 4, 5, 6, 7, 8, and 9.
- step 1003 and step 1004 may be selectively performed. For example, only step 1003 is performed, and another example, only step 1004 is performed. For another example, both step 1003 and step 1004 are performed, which is not limited here.
- the CRS is normally sent in all subframes of the secondary carrier cell.
- the subframe of the secondary carrier cell can also be used to send other downlink signals.
- the transmission of other downlink signals can be appropriately reduced, which will be introduced separately below.
- the network device keeps silent in all subframes of the secondary carrier cell. For example, the network device does not transmit a synchronization channel (SCH), a physical broadcast channel (PBCH), PCFICH, PHICH, PDCCH, PDSCH, etc. in all subframes.
- SCH synchronization channel
- PBCH physical broadcast channel
- PCFICH PCFICH
- PHICH PHICH
- PDCCH Physical Downlink Control Channel
- the network device does not send PCFICH, PHICH, PDCCH and PDSCH in all subframes of the secondary carrier cell, but sends SCH and PBCH normally.
- the network device does not send the PHICH, the common PDCCH (used by all terminal devices in the secondary carrier cell), Paging messages, SIB messages and RAR messages, while SCH, PBCH, PCFICH, dedicated PDCCH (for some terminal equipment in the secondary carrier cell) and data signals are normally sent.
- the network device after the network device determines that at least one of the N parameters of the secondary carrier cell is less than or equal to the corresponding threshold, and determines that the secondary carrier cell has been configured to the terminal device and has not been activated, the network device network device in the secondary carrier cell In the first subframe of the carrier cell, at least one first OFDM symbol is turned off, and the first OFDM symbol is used to carry the CRS corresponding to the first port and/or the second port. Since the secondary carrier cell is in the first state, the network device turns off the CRS on at least one OFDM symbol in the first subframe, which will not affect the communication performance of the terminal device. Therefore, compared with the traditional symbol turn-off technology, the embodiments of the present application can turn off more OFDM symbols on the premise that the communication performance of the terminal device is not degraded, so as to further reduce the power consumption of the network device.
- FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of the present application. As shown in FIG. 12 , the network device includes a transceiver unit and a processing unit 1202 .
- the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
- the processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like.
- the device used to implement the receiving function in the transceiver unit may be regarded as the receiving unit 1201
- the device used to implement the transmitting function in the transceiver unit may be regarded as the transmitting unit 1203, that is, the transceiver unit includes the receiving unit 1201 and the transmitting unit 1203.
- the transceiver unit may also sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit.
- the receiving unit 1201 may also sometimes be referred to as a receiver, a receiver, or a receiving circuit or the like.
- the sending unit 1203 may also be referred to as a transmitter, a transmitter, or a transmission circuit in some cases. It should be understood that the transceiver unit is configured to perform the sending and receiving operations of the network device in the embodiment shown in FIG. 2 , and the processing unit 1202 is configured to perform other operations on the network device in the embodiment shown in FIG. 2 except for the transceiver operations.
- the receiving unit 1201 is used to acquire N parameters of the target cell, the parameters are used to indicate the real-time status of the target cell, and N is an integer greater than or equal to 1;
- a processing unit 1202 configured to determine whether at least one of the N parameters is less than or equal to a corresponding threshold, and determine whether each connected terminal device in the target cell is in the DRX sleep period or there is no connected terminal in the target cell;
- the sending unit 1203 is configured to determine that at least one of the N parameters is less than or equal to the corresponding threshold, and to determine that each connected terminal device in the target cell is in the DRX sleep period or there is no connected terminal in the target cell, then In the first subframe of the target cell, at least one first OFDM symbol is turned off, and the first OFDM symbol is used to carry the CRS corresponding to the first port and/or the second port.
- the number of the first OFDM symbols to be turned off is 4, 3, 2 or 1.
- both the CRS corresponding to the first port and the CRS corresponding to the second port are used to instruct the terminal device to measure the RSRP of the target cell.
- the processing unit 1202 is further configured to determine that each connected state terminal device in the target cell is in the DRX sleep period, wherein the DRX cycle of each connected state terminal device has the same start time and same termination time.
- the sending unit 1203 is further configured to turn off at least one first OFDM symbol and every second OFDM symbol in the first subframe of the target cell , and each second OFDM symbol is used to carry CRSs corresponding to the remaining ports except the first port and the second port.
- the sequence number of the first subframe is 1, 2, 3, 6, 7 or 8, and the first subframe does not carry SIB messages and/or RAR information.
- the sequence number of the first subframe is 3, 4, 7, 8 or 9, and the first subframe does not carry SIB messages and/or RAR messages.
- the sending unit 1203 is further configured to determine that at least one parameter is less than or equal to a corresponding threshold, and determine that each connected terminal device in the target cell is in After the discontinuous reception DRX sleep period or there is no connected terminal in the target cell, in the second subframe of the target cell, each second OFDM symbol is turned off and the first OFDM symbol is not turned off.
- the target cell is an FDD-based cell
- the sequence number of the second subframe is 4, 5 or 9
- the second subframe is a non-PO subframe and does not carry SIB messages and/or RAR messages.
- the target cell is a TDD-based cell
- the sequence number of the second subframe is 1, 5 or 6
- the second subframe is a non-PO subframe, and does not carry SIB messages and/or RAR messages.
- the sending unit 1203 is further configured to send notification information to the terminal equipment located in the adjacent cell of the target cell, where the notification information is used to indicate that the terminal equipment in the adjacent cell is in the third sub-cell of the target cell
- the CRS corresponding to the first port and/or the second port is received; if the target cell is an FDD-based cell, the sequence number of the third subframe is 0, 4, 5 or 9; if the target cell is a TDD-based cell , the sequence number of the third subframe is 0, 1, 5 or 6.
- the first port is port0
- the second port is port1.
- the N parameters include one or more of: uplink traffic load, downlink traffic load, the number of terminal devices, the rate of information transmission, and the delay of information transmission.
- FIG. 13 is another schematic structural diagram of a network device provided by an embodiment of the present application.
- the network device includes a transceiver unit and a processing unit 1302 .
- the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like.
- the processing unit may also be referred to as a processor, a processing single board, a processing module, a processing device, and the like.
- the device used for implementing the receiving function in the transceiver unit may be regarded as the receiving unit 1301, and the device used for implementing the transmitting function in the transceiver unit may be regarded as the transmitting unit 1303, that is, the transceiver unit includes the receiving unit 1301 and the transmitting unit 1303. .
- the transceiver unit may also sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit.
- the receiving unit 1301 may also sometimes be referred to as a receiver, a receiver, or a receiving circuit or the like.
- the sending unit 1303 may also be sometimes referred to as a transmitter, a transmitter, or a transmission circuit or the like.
- transceiver unit is configured to perform sending and receiving operations of the network device in the embodiment shown in FIG. 2
- processing unit 1302 is configured to perform other operations on the network device in the embodiment shown in FIG. 10 except for the transceiver operations.
- the receiving unit 1301 is configured to acquire N parameters of the secondary carrier cell, the parameters are used to indicate the real-time status of the secondary carrier cell, and N is an integer greater than or equal to 1;
- a processing unit 1302 configured to determine whether at least one of the N parameters is less than or equal to a corresponding threshold, and determine whether the secondary carrier cell is in the first state;
- the sending unit 1303 is configured to determine that at least one of the N parameters is less than or equal to the corresponding threshold, and after determining that the secondary carrier cell is in the first state, then in the first subframe of the secondary carrier cell, turn off at least one first An OFDM symbol, where the first OFDM symbol is used to carry the CRS corresponding to the first port and/or the second port.
- the number of the first OFDM symbols to be turned off is 4, 3, 2 or 1.
- the CRS corresponding to the first port and the CRS corresponding to the second port are both used to instruct the terminal device to measure the RSRP of the secondary carrier cell.
- the sending unit 1303 is further configured to turn off at least one first OFDM symbol and each second OFDM symbol in the first subframe of the secondary carrier cell OFDM symbols, each second OFDM symbol is used to carry CRSs corresponding to the remaining ports except the first port and the second port.
- the sequence number of the first subframe is 1, 2, 3, 4, 5, 6, 7, 8 or 9.
- the sequence number of the first subframe is 1, 3, 4, 5, 6, 7, 8 or 9.
- the sending unit 1303 is further configured to determine that at least one parameter is less than or equal to a corresponding threshold, and determine that the secondary carrier cell is in the second state, then keep silent in each subframe of the secondary carrier cell.
- the sending unit 1303 is further configured to determine that at least one parameter is less than or equal to a corresponding threshold, and determine that the secondary carrier cell is in the first state, then do not send the physical control in each subframe of the secondary carrier cell Format indicator channel PCFICH, physical hybrid automatic repeat indicator channel PHICH, downlink physical control channel PDCCH and downlink physical shared channel PDSCH.
- the sending unit 1303 is further configured to determine that at least one parameter is less than or equal to a corresponding threshold, and determine that the secondary carrier cell is in the third state, then do not send the PHICH, Common PDCCH, paging message, SIB message and RAR message.
- the first state is that the secondary carrier cell has been configured to the terminal device and is not activated.
- the second state is that the secondary carrier cell is not configured to the terminal device.
- the third state is that the secondary carrier cell has been configured to the terminal device and has been activated.
- the first port is port0
- the second port is port1.
- the N parameters include one or more of: uplink traffic load, downlink traffic load, the number of terminal devices, the rate of information transmission, and the delay of information transmission.
- FIG. 14 is another schematic structural diagram of a network device provided by an embodiment of the present application.
- the network device 1400 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiments.
- FIG. 14 only shows the main components of the network device.
- the network device 1400 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
- the processor is mainly used to process communication protocols and communication data, control the entire network device, execute software programs, and process data of the software programs, for example, to support the network device to perform the actions described in the above method embodiments, such as Receive the usage threshold of the wake-up signal, and determine whether to monitor the wake-up signal according to the usage threshold and the eDRX cycle.
- the memory is mainly used to store software programs and data, for example, to store the usage threshold of the wake-up signal described in the above embodiments.
- the control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal.
- the control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
- Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
- the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
- the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
- the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves.
- the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
- FIG. 14 only shows one memory and one processor. In an actual network device, there may be multiple processors and multiple memories.
- the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.
- the processor may include a baseband processor and/or a central processing unit.
- the baseband processor is mainly used to process communication protocols and communication data
- the central processing unit is mainly used to control the entire network device. , execute the software program, and process the data of the software program.
- the processor in FIG. 14 may integrate the functions of the baseband processor and the central processing unit.
- the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus.
- a network device may include multiple baseband processors to adapt to different network standards, a network device may include multiple central processors to enhance its processing capability, and various components of the network device may be connected through various buses.
- the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
- the central processing unit can also be expressed as a central processing circuit or a central processing chip.
- the function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
- an antenna and a control circuit with a transceiving function may be regarded as the transceiver 1401 of the network device 1400, for example, used to support the network device to perform the aforementioned receiving and transmitting functions.
- the processor with processing functions as the processor 1402 of the network device 1400 .
- the network device 1400 includes a transceiver 1401 and a processor 1402 .
- a transceiver may also be referred to as a transceiver, a transceiver, or the like.
- the device used to implement the receiving function in the transceiver 1401 may be regarded as a receiving unit, and the device used to implement the transmitting function in the transceiver 1401 may be regarded as a transmitting unit, that is, the transceiver 1401 includes a receiving unit and a transmitting unit,
- the receiving unit may also be called a receiver, an input port, a receiving circuit, etc.
- the sending unit may be called a transmitter, a transmitter or a transmitting circuit, and the like.
- the processor 1402 may be configured to execute the instructions stored in the memory, so as to control the transceiver 1401 to receive signals and/or send signals, so as to complete the functions of the network device in the foregoing method embodiments.
- the function of the transceiver 1401 may be implemented by a transceiver circuit or a dedicated chip for transceiver.
- the embodiment of the present application also relates to a processor for executing the method in the embodiment shown in FIG. 2 or FIG. 10 .
- the embodiment of the present application also relates to a computer program, which, when executed by a processor, is used to execute the method in the embodiment shown in FIG. 2 or FIG. 10 .
- Embodiments of the present application also relate to a computer program product, the program product comprising: computer program code, when the program code is run by a communication unit, a processing unit or a transceiver, or a processor of a communication device (eg, a network device) , so that the communication device executes the method in the embodiment shown in FIG. 2 or FIG. 10 .
- Embodiments of the present application also relate to a computer-readable storage medium, where the computer-readable storage medium stores a computer program or instruction, and the computer program or instruction causes a communication apparatus (eg, a network device) to execute as shown in FIG. 2 or FIG. 10 method in the illustrated embodiment.
- a communication apparatus eg, a network device
- the disclosed system, apparatus and method may be implemented in other manners.
- the apparatus embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
- the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
- the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
- the integrated unit if implemented in the form of a software functional unit and sold or used as an independent product, may be stored in a computer-readable storage medium.
- the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that contribute to the prior art, or all or part of the technical solutions, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .
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Abstract
本申请实施例公开了一种信号传输的方法及其相关设备,可以在保证终端设备的通信性能不下降的前提下,关断子帧中的CRS,从而进一步降低网络设备的功耗。本申请的方法包括:获取目标小区的N个参数,参数用于指示目标小区的实时状况,N为大于或等于1的整数;确定N个参数中的至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于非连续接收DRX休眠期后或目标小区内无连接态终端,则在目标小区的第一子帧中,关断至少一个第一正交频分复用OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的小区特定参考信号CRS。
Description
本申请要求于2020年7月31日提交中国专利局、申请号为202010765245.9、申请名称为“一种信号传输的方法及其相关设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,尤其涉及一种信号传输的方法及其相关设备。
符号关断是长期演进(long term evolution,LTE)系统中的节能技术。在符号关断技术中,在保证小区特定参考信号(cell specific reference signal,CRS)等信号正常传输的情况下,可在没有数据传输的正交频分复用(orthogonal frequency division multiplexing,OFDM)符号内,将网络设备的功放关闭,以减小网络设备的功耗。
在符号关断时,为了保证终端设备与网络设备之间的正常通信,网络设备需在一个子帧的至少4个OFDM符号中发送CRS。在此基础上,如何在保证终端设备的通信性能(例如,终端设备迅速响应业务需求的性能、终端设备的吞吐率性能等等)不下降的前提下,进一步减小网络设备的功耗,成为了亟需解决的问题。
发明内容
本申请实施例提供了一种信号传输的方法及其相关设备,可以在保证终端设备的通信性能不下降的前提下,关断子帧中的CRS,从而进一步降低网络设备的功耗。
本申请实施例的第一方面提供了一种信号传输的方法,该方法可以由网络设备执行,也可以由网络设备的部件(例如处理器、芯片、或芯片系统等)执行,以由网络设备执行为示例,该方法包括:网络设备先获取目标小区的N个参数,该N个参数用于指示目标小区的实时状况,N为大于或等于1的整数。接着,网络设备确定N个参数中的至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于非连续接收(discontinuous reception,DRX)休眠期后或目标小区内无连接态终端,则在目标小区的第一子帧中关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
具体地,为了监测目标小区的实时状况,网络设备可先获取目标小区的N个参数,N为大于或等于1的整数。在这N个参数中,每个参数均可用于指示目标小区的实时状况,例如,目标小区的负载状态和/或性能状况等等。
然后,网络设备可判断N个参数中的至少一个参数是否小于或等于相应的阈值。若网络设备确定N个参数中的至少一个参数小于或等于相应的阈值,再判断目标小区内每个连接态终端设备均处于DRX休眠期或目标小区内无连接态终端。
最后,若网络设备确定目标小区内的每个连接态终端设备均处于DRX休眠期或目标小区内无连接态终端,网络设备则可以少发CRS。具体地,网络设备在目标小区的第一子 帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
从上述方法可以看出:网络设备确定N个参数中的至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于DRX休眠期或目标小区内无连接态终端后,则在第一子帧中关断至少一个第一OFDM符号,第一OFDM符号可用于承载第一端口和/或第二端口对应的CRS。由于目标小区内的每个连接态终端设备均处于DRX休眠期中或目标小区内无连接态终端,网络设备在第一子帧中关断至少一个OFDM符号上的CRS,并不会影响终端设备的通信性能。故相对于传统的符号关断技术,本申请实施例可在保证终端设备的通信性能不下降的前提下,关断更多的OFDM符号,以进一步降低网络设备的功耗。
在一种可能的实现方式中,例如,第一子帧中具有M个第一OFDM符号,M为大于或等于1的整数。为了实现节能,网络设备可选择性地关断第一子帧中的若干个第一OFDM符号,具体地,第一OFDM符号被关断的数量为1、2、...、M-1或M个,提高了方案的灵活度和可选择性。
在一种可能的实现方式中,第一端口对应的CRS和第二端口对应的CRS均用于指示终端设备测量目标小区的参考信号接收功率(reference signal receiving power,RSRP)。
在一种可能的实现方式中,网络设备确定目标小区内的每个连接态终端设备均处于DRX休眠期包括:网络设备确定目标小区内的每个连接态终端设备均处于DRX休眠期,其中,每个连接态终端设备的DRX周期具有相同的起始时间和相同的终止时间。从前述实现方式可知,网络设备可预先将目标小区中所有连接态终端设备的DRX周期对齐,然后实时获取每个连接态终端设备的状态,从而确定目标小区内的所有连接态终端设备是否均处于DRX休眠期。
在一种可能的实现方式中,网络设备确定目标小区内的每个连接态终端设备均处于DRX休眠期或目标小区内无连接态终端,包括:网络设备确定目标小区内的每个连接态终端设备均处于DRX休眠期或目标小区内无连接态终端,其中,各个连接态终端的DRX周期起始时间或终止时间不一定相同,网络设备仍可实时获取每个连接态终端设备的状态,从而确定目标小区内的所有连接态终端设备是否均处于DRX休眠期。
在一种可能的实现方式中,若目标小区配置有至少3个端口,则网络设备在目标小区的第一子帧中,关断至少一个第一OFDM符号包括:网络设备在目标小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,每个第二OFDM符号用于承载除第一端口和第二端口外的其余端口对应的CRS。从前述实现方式可知,当目标小区配置有至少3个端口时,网络设备可在第一子帧中少发第一端口和第二端口对应的CRS,且不发送除第一端口和第二端口外的其余端口对应的CRS,从而关断多个OFDM符号上的CRS,以减小网络设备的功耗。
在一种可能的实现方式中,若目标小区为基于频分双工(frequency division duplexing,FDD)的小区,网络设备可选择序号为1、2、3、6、7或8,且实际上未承载系统信息块(system information block,SIB)消息和/或无线接入响应(radio access response,RAR)消 息的子帧,作为目标小区的第一子帧。
在一种可能的实现方式中,若目标小区为基于时分双工(time division duplexing,TDD)的小区,网络设备可选择序号为3、4、7、8或9,且实际上未承载SIB消息和/或RAR消息的子帧,作为目标小区的第一子帧。
在一种可能的实现方式中,若目标小区配置有至少3个端口,该方法还包括:网络设备确定至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于非连续接收DRX休眠期或目标小区内无连接态终端后,则在目标小区的第二子帧中,关断每个第二OFDM符号且不关断第一OFDM符号。从前述实现方式可知,当目标小区配置有至少3个端口时,网络设备可在第二子帧中正常发送第一端口和第二端口对应的CRS,而不发送除第一端口和第二端口外的其余端口对应的CRS,以进一步减小网络设备的功耗。
在一种可能的实现方式中,若目标小区为基于FDD的小区,网络设备可选择序号为4、5或9,且不承载SIB消息和/或RAR消息的非寻呼时机(paging occasion,PO)子帧作为目标小区的第二子帧,并确定第二数量为4。
在一种可能的实现方式中,若目标小区为基于TDD的小区,网络设备可选择序号为1、5或6,且不承载SIB消息和/或RAR消息的非PO子帧作为目标小区的第二子帧,并确定第二数量为4、3、2或1。
在一种可能的实现方式中,该方法还包括:网络设备向位于目标小区的相邻小区内的终端设备发送通知信息,通知信息用于指示相邻小区内的终端设备在目标小区的第三子帧中,接收第一端口和/或第二端口对应的CRS。若目标小区为基于FDD的小区,则第三子帧的序号为0、4、5或9。若目标小区为基于TDD的小区,则第三子帧的序号0、1、5或6。从前述实现方式可知,网络设备可通知邻区终端设备在目标小区的第三子帧中,接收第一端口和/或第二端口对应的CRS,从而保证邻区终端设备能够正常测量目标小区的RSRP。
在一种可能的实现方式中,第一端口为协议端口(port)0,第二端口为port1。
在一种可能的实现方式中,N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延等参数中的一个或多个,从而令网络设备基于这N个参数中的至少一个参数确定目标小区的负载状况和性能状况等等。
本申请实施例的第二方面提供了一种信号传输的方法,该方法可以由网络设备执行,也可以由网络设备的部件(例如处理器、芯片、或芯片系统等)执行,以由网络设备执行为示例,该方法包括:网络设备先获取辅载波小区的N个参数,该N个参数用于指示辅载波小区的实时状况,N为大于或等于1的整数;确定N个参数中的至少一个所述参数小于或等于相应的阈值,且确定辅载波小区处于第一状态后,则在辅载波小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
具体地,为了监测辅载波小区的实时状态,网络设备可先获取辅载波小区的N个参数,N为大于或等于1的整数。在这N个参数中,每个参数均可用于指示辅载波小区的实时状况,例如,辅载波小区的负载状态和/或性能状况等等。
然后,网络设备可判断N个参数中的至少一个参数是否小于或等于相应的阈值。若网络设备确定N个参数中的至少一个参数小于或等于相应的阈值,网络设备再确定辅载波小区的状态。
最后,确定辅载波小区处于第一状态后,可基于辅载波小区的状态少发CRS。具体地,网络设备在辅载波小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
从上述方法可以看出:网络设备确定辅载波小区的N个参数中的至少一个参数小于或等于相应的阈值,且确定辅载波小区已被配置至终端设备且未被激活后,网络设备网络设备在辅载波小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。由于辅载波小区处于第一状态,网络设备在第一子帧中关断至少一个OFDM符号上的CRS,并不会影响终端设备的通信性能。故相对于传统的符号关断技术,本申请实施例可在保证终端设备的通信性能不下降的前提下,关断更多的OFDM符号,以进一步降低网络设备的功耗。
在一种可能的实现方式中,传统的方案中,第一子帧中具有M个第一OFDM符号,M为大于或等于1的整数。为了实现节能,网络设备可选择性地关断第一子帧中的若干个第一OFDM符号,具体地,第一OFDM符号被关断的数量为1、2、...、M-1或M个,提高了方案的灵活度和可选择性。
在一种可能的实现方式中,第一端口对应的CRS和第二端口对应的CRS均用于指示终端设备测量辅载波小区的RSRP。
在一种可能的实现方式中,若辅载波小区配置有至少3个端口,则网络设备在辅载波小区的第一子帧中,关断至少一个第一OFDM符号包括:网络设备在辅载波小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,每个第二OFDM符号用于承载除第一端口和第二端口外的其余端口对应的CRS。从前述实现方式可知,当目标小区配置有至少3个端口时,网络设备可在第一子帧中少发第一端口和第二端口对应的CRS,且不发送除第一端口和第二端口外的其余端口对应的CRS,从而关断多个OFDM符号上的CRS,以减小网络设备的功耗。
在一种可能的实现方式中,若辅载波小区为基于FDD的小区,网络设备可选择序号为1、2、3、4、5、6、7、8或9的子帧,作为辅载波小区的第一子帧。
在一种可能的实现方式中,若辅载波小区为基于TDD的小区,网络设备可选择序号为1、3、4、5、6、7、8或9的子帧,作为辅载波小区的第一子帧。
在一种可能的实现方式中,该方法还包括:网络设备确定至少一个参数小于或等于相应的阈值,且确定辅载波小区处于第二状态,则在辅载波小区的每个子帧中保持静默,以进一步减小网络设备的功耗。
在一种可能的实现方式中,该方法还包括:网络设备确定至少一个参数小于或等于相应的阈值,且确定辅载波小区处于第一状态,则在辅载波小区的每个子帧中不发送物理控制格式指示信道(physical control format indicator channel,PCFICH)、物理混合自动重传指示信道(physical hybrid arq indicator channel,PHICH)、下行物理控制信道(physical downlink control channel,PDCCH)和下行物理共享信道(physical downlink shared channel,PDSCH),以进一步减小网络设备的功耗。
在一种可能的实现方式中,该方法还包括:网络设备确定至少一个参数小于或等于相应的阈值,且确定辅载波小区处于第三状态,则在辅载波小区的每个子帧中不发送PHICH、公共PDCCH、寻呼消息、SIB消息和RAR消息,以进一步减小网络设备的功耗。
在一种可能的实现方式中,第一状态为辅载波小区已被配置至终端设备且未被激活。
在一种可能的实现方式中,第二状态为辅载波小区未被配置至终端设备。
在一种可能的实现方式中,第三状态为辅载波小区已被配置至终端设备且已被激活。
在一种可能的实现方式中,第一端口为port0,第二端口为port1。
在一种可能的实现方式中,N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延等参数中的一个或多个,从而令网络设备基于这N个参数中的至少一个参数确定目标小区的负载状况和性能状况等等。
本申请实施例的第三方面提供了一种处理器,用于执行上述第一方面或第二方面中任意一项所述的方法。
本申请实施例的第四方面提供了一种网络设备,所述网络设备包括用于执行第一方面中任意一项所述的方法的单元。如收发单元(可以包括发送单元和接收单元),用于执行第一方面中任意一项所述的方案中信号或信息收发的操作;处理单元,用于执行第一方面中任意一项所述的方案中除收发之外的操作,如信息确定等。
本申请实施例的第五方面提供了一种网络设备,所述网络设备包括用于执行第二方面中任意一项所述的方法的单元。如收发单元(可以包括发送单元和接收单元),用于执行第二方面中任意一项所述的方案中信号或信息收发的操作;处理单元,用于执行第二方面中任意一项所述的方案中除收发之外的操作,如信息确定等。
本申请实施例的第六方面提供了一种通信装置,该通信装置可以为上述方法设计中的网络设备,或者,为设置在终端设备中的芯片。该通信装置包括:处理器,与存储器耦合,可用于执行存储器中的计算机程序或指令,以实现上述方案其任意一种可能的实现方式中网络设备所执行的方法。可选地,该通信装置还包括存储器。可选地,该通信装置还包括通信接口,处理器与通信接口耦合。
当该通信装置为网络设备时,该通信接口可以是收发器,或,输入/输出接口,用于信号的收发,或计算机程序或指令的输入/输出。
当该通信装置为设置于网络设备中的芯片时,该通信接口可以是输入/输出接口,用于信号的收发,或计算机程序或指令的输入/输出,其中输入对应接收或获取的操作,输出对应发送的操作。
可选地,该收发器可以为收发电路。可选地,该输入/输出接口可以为输入/输出电路。
本申请实施例的第七方面提供了一种计算机程序,该程序在被处理器执行时,用于执行上述第一方面或第二方面中任意一项所述的方法。
本申请实施例的第八方面提供了一种计算机程序产品,所述程序产品包括:计算机程 序代码,当所述程序代码被通信装置(例如,网络设备)的通信单元、处理单元或收发器、处理器运行时,使得通信设备执行上述第一方面或第二方面中任意一项所述的方法。
本申请实施例的第九方面提供了一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序或指令,所述计算机程序或指令使得通信装置(例如,网络设备)执行上述第一方面或第二方面所述的方法。
本申请实施例中,如果上述装置对应芯片,收发器或收发单元可以替换为输入/输出接口,则接收的操作对应输入或者获取,发送操作对应的是输出。
从以上技术方案可以看出,本申请实施例具有以下优点:
本申请实施例中,网络设备确定N个参数中的至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于DRX休眠期或目标小区内无连接态终端后,则在第一子帧中关断至少一个第一OFDM符号,第一OFDM符号可用于承载第一端口和/或第二端口对应的CRS。由于目标小区内的每个连接态终端设备均处于DRX休眠期中或目标小区内无连接态终端,网络设备在第一子帧中关断至少一个OFDM符号上的CRS,并不会影响终端设备的通信性能。故相对于现有的符号关断技术,本申请实施例可在保证终端设备的通信性能不下降的前提下,关断更多的OFDM符号,以进一步降低网络设备的功耗。
图1为本申请实施例提供的一种应用场景的示意图;
图2为本申请实施例提供的信号传输的方法的一个流程示意图;
图3为本申请实施例提供的DRX周期的一个示意图;
图4为本申请实施例提供的目标小区的子帧的一个示意图;
图5为本申请实施例提供的目标小区的子帧的另一示意图;
图6为本申请实施例提供的第一子帧的一个示意图;
图7为本申请实施例提供的第一子帧的另一示意图;
图8为本申请实施例提供的第一子帧的又一示意图;
图9为本申请实施例提供的第一子帧的再一示意图;
图10为本申请实施例提供的信号传输的方法的另一流程示意图;
图11为本申请实施例提供的多载波场景的一个示意图;
图12为本申请实施例提供的网络设备的一个结构示意图;
图13为本申请实施例提供的网络设备的另一结构示意图;
图14为本申请实施例提供的网络设备的又一结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行详细描述。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情 况下可以互换,以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或模块的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或模块,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块。在本申请中出现的对步骤进行的命名或者编号,并不意味着必须按照命名或者编号所指示的时间/逻辑先后顺序执行方法流程中的步骤,已经命名或者编号的流程步骤可以根据要实现的技术目的变更执行次序,只要能达到相同或者相类似的技术效果即可。本申请中所出现的单元的划分,是一种逻辑上的划分,实际应用中实现时可以有另外的划分方式,例如多个单元可以结合成或集成在另一个系统中,或一些特征可以忽略,或不执行,另外,所显示的或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,单元之间的间接耦合或通信连接可以是电性或其他类似的形式,本申请中均不作限定。并且,作为分离部件说明的单元或子单元可以是也可以不是物理上的分离,可以是也可以不是物理单元,或者可以分布到多个电路单元中,可以根据实际的需要选择其中的部分或全部单元来实现本申请方案的目的。
应理解,本申请实施例中“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A、B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一(项)个”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a、b或c中的至少一项(个),可以表示:a,b,c,a和b,a和c,b和c,或a、b和c,其中a、b、c可以是单个,也可以是多个。
另外,需要理解的是,在本申请的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序,也不代表个数。
本申请实施例的技术方案可以应用于各种LTE通信系统,例如:FDD、TDD系统等。术语“系统”可以和“网络”相互替换。例如,3GPP-LTE系统和基于LTE演进的各种版本、以及第五代(5 Generation,5G)通信系统、新空口(new radio,NR)等通信系统。此外,所述通信系统还可以适用于面向未来的通信技术,都适用本申请实施例提供的技术方案。本申请实施例描述的系统架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
为了便于理解,下面将结合图1,对本申请实施例的应用场景进行简单的介绍。图1为本申请实施例提供的一种应用场景的示意图,如图1所示,该应用场景包括终端设备101和网络设备102。其中,终端设备101与网络设备102无线连接,网络设备102用于将终端设备101接入到无线网络。
其中,终端设备101又称之为用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等,是一种向用户提供语音和/或数据连通性的设备,或,设置于该设备内的芯片,例如,具有无线连接功允许的手持式设备、车载设备等。目前,一些终端设备的举例为:手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备,虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
网络设备102可以是任意一种具有无线收发功能的设备,或,设置于具体无线收发功能的设备内的芯片。网络设备102包括但不限于:基站(例如基站BS,基站NodeB、演进型基站eNodeB或eNB、第五代5G通信系统中的基站gNodeB或gNB、未来通信系统中的基站、WiFi系统中的接入节点、无线中继节点、无线回传节点)等。基站可以是:宏基站,微基站,微微基站,小站,中继站等。多个基站可以支持上述提及的一种或者多种技术的网络,或者未来演进网络。基站可以包含一个或多个共站或非共站的传输接收点(transmission reception point,TRP)。网络设备102还可以是云无线接入网络(cloud radio access network,CRAN)场景下的无线控制器、集中单元(central unit,CU)或者分布单元(distributed unit,DU)等。以下以网络设备102为基站为例进行说明。所述多个网络设备102可以为同一类型的基站,也可以为不同类型的基站。基站可以与终端设备101进行通信,也可以通过中继站与终端设备101进行通信。终端设备101可以支持与不同技术的多个基站进行通信,例如,终端设备101可以支持与支持LTE网络的基站通信,也可以支持与支持5G网络的基站通信,还可以支持与LTE网络的基站以及5G网络的基站的双连接。例如将终端设备101接入到无线网络的RAN节点。目前,一些RAN节点的举例为:gNB、TRP、演进型节点B(evolved Node B,eNB)、下一代演进型节点B(next generation evolved Node B,LTE ng-eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(base band unit,BBU),或Wifi接入点(access point,AP)等。
在如图1所示的场景中,为了减小网络设备102的功耗,通常可以执行符号关断等节能技术。在符号关断时,为了保证终端设备101与网络设备102之间的正常通信,网络设备102需在一个子帧的至少4个OFDM符号中发送CRS。在此基础上,如何在保证终端设备101的通信性能不下降的前提下,进一步减小网络设备102的功耗,成为了亟需解决的问题。
为了解决上述问题,本申请实施例提供了一种信号传输的方法。图2为本申请实施例提供的信号传输的方法的一个流程示意图。如图2所示,该方法可以由网络设备执行,也可以由网络设备的部件(例如处理器、芯片、或芯片系统等)执行,以由网络设备执行为示例,该方法包括:
201、网络设备获取目标小区的N个参数,该N个参数用于指示目标小区的实时状况,N为大于或等于1的整数。
本实施例中,网络设备可实时获取目标小区的N个参数。网络设备所获取的N个参数中,每个参数均可用于指示目标小区的实时状况,例如,负载状况和/或性能状况等等。在一种可能的实现方式中,网络设备所获取的N个参数可包括上行业务负载、下行业务负载、目标小区内的终端设备的数量、信息传输的速率和信息传输的时延等参数中的一个或多个。例如,网络设备可获取目标小区的下行业务负载,即确定目标小区的下行物理资源块(physical resource block,PRB)的利用率为50%。又如,网络设备可获取目标小区内的连接态终端设备的数量为15个等等。需要说明的是,目标小区可以为多种场景下的小区,也可称之为多种场景下的载波,以下将分别进行介绍:
在一种可能的实现方式中,目标小区可为单载波场景中的小区(也可称为单载波小区),单载波小区即为网络设备为某个扇区所分配的单个载波。
在另一种可能的实现方式中,目标小区可为多载波场景中的主载波小区或辅载波小区。基于载波聚合(carrier aggregation,CA)技术,网络设备可为某个扇区的终端设备分配一个主载波和至少一个辅载波。主载波小区即为网络设备为某个扇区的终端设备所分配的主载波,辅载波小区即为网络设备为某个扇区的终端设备所分配的辅载波。
202、网络设备确定N个参数中的至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于DRX休眠期或目标小区内无连接态终端后,则在目标小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
网络设备获取到目标小区的N个参数后,可从N个参数中选择一个或多个参数进行判断。例如,网络设备可从N个参数中选择某个参数,并判断该参数是否小于或等于相应的阈值,又如,网络设备可从N个参数中选择多个参数,并分别判断被选中的每个参数是否小于或等于相应的阈值。需要说明的是,网络设备为N个参数中的每个参数均设置有相应的阈值,该阈值可通过多种方式设置。在一种可能的实现方式中,网络设备可提前预置有每个参数所对应的阈值。在另一种可能的实现方式中,网络设备可基于目标小区内终端设备的指示信息,动态设置每个参数所对应的阈值。在另一种可能的实现方式中,网络设备还可基于目标小区的实时状况,动态地设置每个参数所对应的阈值。
此外,上述所提及的阈值可以是一个具体的数值。以参数是目标小区内连接态终端设备的数量为例进行说明。当连接态终端设备的数量所对应的阈值为20个时,此时,相当于网络设备为该参数设定了一个取值范围或者一个条件,即目标小区内连接态终端设备的数量在0~20的范围内时,则确定该参数满足条件,若在0~20的范围外,则确定该参数不满足条件。如,当网络设备确定目标小区内连接态终端设备的数量为15个时,则确定该参数满足条件,可进入下一步的判断。
若网络设备确定N个参数中的至少一个参数小于或等于对应的阈值,网络设备再判断目标小区内所有终端设备是否处于DRX休眠期。在另一种可能的实现方式中,若网络设备确定N个参数中的至少一个参数小于或等于对应的阈值,网络设备还可判断目标小区内是 否有连接态终端。
需要说明的是,连接态终端设备是指与网络设备建立了无线资源控制(radio resource control,RRC)连接的终端设备,连接态终端设备的DRX周期具有DRX激活期和DRX休眠期。因此,本实施例中目标小区内所有终端设备处于DRX休眠期可理解为目标小区内所有连接态终端设备处于DRX休眠期,同理,目标小区内至少一个终端设备处于DRX激活期可理解为目标小区内至少一个连接态终端设备处于DRX激活期,目标小区内无连接态终端,可理解为小区内没有终端与网络设备建立了RRC连接,后续不再赘述。
在一种可能的实现方式中,网络设备可将目标小区内所有连接态终端设备的DRX周期对齐,即目标小区内所有连接态终端设备的DRX周期都是等长的,且所有连接态终端设备的DRX周期具有相同的起始时间和相同的终止时间。值得注意的是,虽然所有终端设备的DRX周期已对齐,但是不同终端设备的DRX激活期的长度可相同也可不同,同理,不同终端设备的DRX休眠期的长度可相同也可不同。例如,设终端设备A、B、C位于同一目标小区内,三个终端设备的DRX周期均为20ms且已对齐。其中,终端设备A的DRX激活期为5ms,终端设备B的DRX激活期为5ms,终端设备C的DRX激活期为10ms,故终端设备A的DRX休眠期为15ms,终端设备B的DRX休眠期为15ms,终端设备C的DRX休眠期为10ms,网络设备可通过监测当前时间位于三个终端设备的DRX周期的哪一个阶段,从而确定当前时间所处的状态。以0时刻作为三个终端设备的DRX周期的起始时间,若当前时间为第4ms,则网络设备确定当前时间落入终端设备A、B、C的DRX激活期,可确定目标小区进入DRX激活期,若当前时间为第8ms,则网络设备确定当前时间落入终端设备C的DRX激活期,可确定目标小区进入DRX激活期,若当前时间为第15ms,则网络设备确定当前时间落入终端设备A、B、C的DRX休眠期,可确定目标小区进入DRX休眠期。因此,若网络设备确定目标小区内至少一个终端设备处于DRX激活期,则可确定目标小区在当前时间进入DRX激活期内,若网络设备确定目标小区内所有终端设备处于DRX休眠期,则可确定目标小区在当前时间进入DRX休眠期内。
由于目标小区内所有连接态终端设备的DRX周期已对齐(需要说明的是,目标小区内各个连接态终端设备的DRX周期即使不对齐(即不同的连接态终端设备的DRX周期具有不同的起始时间或不同的终止时间),网络设备也可判断目标小区内所有连接态终端设备处于DRX周期中的哪一个阶段,即处于DRX激活期中或处于DRX休眠期中),网络设备可实时判断目标小区的时域信息(即目标小区的子帧)处于所有连接态终端设备的DRX周期中的哪一个阶段,即处于DRX激活期中或处于DRX休眠期中。具体地,当目标小区内所有终端设备处于DRX休眠期时,也可理解为目标小区的子帧处于DRX休眠期中。同理,当目标小区内至少一个终端设备处于DRX激活期时,也可理解为目标小区的子帧处于DRX激活期中。为了进一步理解,以下结合图3对DRX周期进行说明。图3为本申请实施例提供的DRX周期的一个示意图。如图3所示,为了方便作图,设DRX周期为20ms,目标小区包含多个子帧,每10个子帧构成一个帧。在多个DRX周期中,DRX激活期和DRX休眠期交替出现,因此,目标小区的一部分子帧则处于DRX激活期中,另一部分子帧则处于DRX休眠期中。
基于图3可知,在目标小区的多个帧中,每个帧所包含的10个子帧的序号分别为0至 9,不同序号的子帧可承载相同的信号也可承载不同的信号。需要说明的是,本实施例中的子帧以为非多播单频网络(multicast broadcast single frequency network,MBSFN)子帧举例。在一种可能的实现方式中,若目标小区为基于FDD的小区,本实施例中的子帧可为基于FDD的下行子帧,其可包括14个OFDM符号或12个OFDM符号。在另一种可能的实现方式中,若目标小区为基于TDD的小区,本实施例中的子帧可为基于TDD的下行子帧和特殊子帧,其可包括14个OFDM符号或12个OFDM符号。为了便于说明,下文和附图均以一个子帧包括14个OFDM符号为例进行介绍。
当即目标小区内至少一个终端设备处于DRX激活期(为了方便说明,以下简称为进入DRX激活期)和目标小区内所有终端设备处于DRX休眠期(以下简称为进入DRX休眠期)时,网络设备在目标小区的子帧中分别进行不同的CRS处理。可以理解的是,在目标小区无连接态终端的情况下,网络设备所进行的CRS处理和在目标小区内所有终端设备处理DRX休眠期的情况下,网络设备所进行的CRS处理可以是相同的,那么,下文将以在目标小区内所有终端设备处理DRX休眠期的情况下,网络设备所进行的CRS处理进行示意性介绍,后续不再赘述。为了便于理解,以下结合图4对DRX周期中的不同CRS处理进行介绍。图4为本申请实施例提供的目标小区的子帧的一个示意图。
值得注意的是,在一个子帧的14个OFDM符号中,有某些OFDM符号(也可称为OFDM符号周期)被设置成用于发送(承载)为port0配置的CRS(也可称为与port0对应的CRS,即R0)和/或为port1配置的CRS(也可称为与port1对应的CRS,即R1),用于发送R0和/或R1的OFDM符号即为第一OFDM符号。此外,还有另一部分OFDM符号被设置成用于发送除R0和R1外的其余CRS,例如为port2配置的CRS(即R2)、为port3配置的CRS(即R3)等等,用于发送除R0和R1外的其余CRS的OFDM符号即为第二OFDM符号,后续不再赘述。
当网络设备确定目标小区内至少一个终端设备处于DRX激活期时,网络设备在目标小区的每个子帧中正常发送CRS。若目标小区配置有不同数量的协议端口,网络设备在正常发送CRS时,也对应不同的情况。如图4所示,设目标小区配置有2个协议端口,即port0和port1。进入DRX激活期后,网络设备在目标小区的每个子帧中,可在4个第一OFDM符号中发送R0和R1。
应理解,图4中仅以目标小区配有两个port为例进行示意性说明,并不对本申请中目标小区所配置的port的数量构成限制。例如,目标小区也可仅配置有1个协议端口,即port0。进入DRX激活期后,网络设备在目标小区的每个子帧中,可在4个第一OFDM符号中发送R0。又如(如图5所示,图5为本申请实施例提供的目标小区的子帧的另一示意图),设目标小区配置有4个port,即port0、port1、port2和port3。进入DRX激活期后,网络设备在目标小区的每个子帧中,可在4个第一OFDM符号中发送R0和R1,在2个第二OFDM符号上发送R2和R3。
还应理解,图4和图5中仅以基于FDD的下行子帧为例进行示意图说明。目标小区的子帧还可以为基于TDD的下行子帧和特殊子帧,网络设备在基于TDD的下行子帧中正常发送CRS的情况可参考前述网络设备在基于FDD的下行子帧中正常发送CRS的相关说明,此 处不再赘述。值得注意的是,当网络设备在基于TDD的特殊子帧中正常发送CRS时,只能在特殊子帧中的下行导频时隙(downlink pilot time slot,DwPTS)发送CRS,而DwPTS所包含的OFDM符号的数量随着不同的特殊子帧配比而改变。例如,当特殊子帧配比为0时,特殊子帧中的DwPTS仅包含3个OFDM符号。此时,若目标小区配置有2个port,网络设备最多只能在特殊子帧中的1个第一OFDM符号中发送R0和R1。若目标小区配置有4个port,网络设备可在特殊子帧的1个第一OFDM符号中发送R0和R1,在1个第二OFDM符号中发送R2和R3。又如,当特殊子帧配比为1时,特殊子帧中的DwPTS则包含9个OFDM符号。此时,若目标小区配置有2个port,网络设备最多可在特殊子帧的其中3个第一OFDM符号中发送为R0和R1,若目标小区配置有4个port,网络设备最多可在特殊子帧的3个第一OFDM符号中发送为R0和R1,并在2个第二OFDM符号中发送为R2和R3。还如,当特殊子帧配比为4时,特殊子帧中的DwPTS则包含12个OFDM符号。此时,若目标小区配置有2个port,网络设备最多可在特殊子帧的4个第一OFDM符号中发送为R0和R1,若目标小区配置有4个port,网络设备最多可在特殊子帧的4个第一OFDM符号中发送为R0和R1,并在2个第二OFDM符号中发送为R2和R3。
基于上述说明,进入DRX激活期后,网络设备在目标小区的子帧中正常发送CRS的各种情况,如表1所示:
表1
当网络设备确定目标小区内所有终端设备处于DRX休眠期时,则可以少发CRS,即网络设备在目标小区的第一子帧中,关断至少一个第一OFDM符号。可以理解的是,关断某个第一OFDM符号即在该第一OFDM符号上,网络设备不发送CRS。具体地,目标小区的第一子帧通常指目标小区的每个帧中的部分子帧,且为具有特定序号的子帧。第一子帧可以是基于FDD的下行子帧,也可以是基于TDD的下行子帧,下文将分别进行介绍:
在一种可能的实现方式中,若目标小区为基于FDD的小区,对于目标小区的每个帧中序号为1、2、3、6、7或8的子帧,这部分子帧中有一部分OFDM符号用于承载CRS(例 如,第一OFDM符号和第二OFDM符号等等),而另一部分OFDM符号则可用于承载其它信号(但实际上承不承载看具体的通信需求),即这部分子帧中可承载其它信号,例如SIB消息,RAR消息等等。对于序号为1、2、3、6、7或8的这部分子帧,网络设备可从中选择出实际上未承载SIB消息和/或RAR消息的子帧,作为目标小区的第一子帧。
在另一种可能的实现方式中,若目标小区为基于TDD的小区,对于目标小区的每个帧中序号为3、4、7、8或9的子帧(即序号为3、4、7、8或9的下行子帧),这部分子帧中有一部分OFDM符号用于承载CRS,而另一部分OFDM符号则可用于承载其它信号,例如SIB消息,RAR消息等等。对于序号为3、4、7、8或9的这部分子帧,网络设备可从中选择出实际上未承载SIB消息和/或RAR消息的子帧,作为目标小区的第一子帧。
网络设备在确定目标小区的第一子帧后,可在第一子帧中少发CRS。网络设备可通过多种方式少发CRS,下文将结合图6至图9进行介绍。图6为本申请实施例提供的第一子帧的一个示意图,图7为本申请实施例提供的第一子帧的另一示意图,图8为本申请实施例提供的第一子帧的又一示意图,图9为本申请实施例提供的第一子帧的再一示意图。
在一种可能的实现方式中,若目标小区为基于FDD的小区,且配置有1个port(即port0)。网络设备在第一子帧中关断至少一个(即4、3、2、或1个)第一OFDM符号,即在第一子帧中要么不发送R0,要么在1、2或3个第一OFDM符号中发送R0(图6中以关断3个第一OFDM符号,即仅在1个第一OFDM符号发送R0作为示例)。较之于正常发送CRS的情况,则可以关断1至4个OFDM符号上的CRS。
在另一种可能的实现方式中,若目标小区为基于FDD的小区,且配置有2个port(即port0和port1),网络设备在第一子帧中关断至少一个第一OFDM符号,即在第一子帧中要么不发送R0和R1,要么在1、2或3个第一OFDM符号中发送R0和R1(图7中以关断3个第一OFDM符号,即仅在1个第一OFDM符号发送R0和R1作为示例,图8中以关断2个第一OFDM符号,即仅在2个第一OFDM符号发送R0和R1作为示例,图9中以关断1个第一OFDM符号,即仅在3个第一OFDM符号发送R0和R1作为示例)。较之于正常发送CRS的情况,则可以关断1至4个OFDM符号上的CRS。
在另一种可能的实现方式中,若目标小区为基于FDD的小区,且配置有4个port(即port0、port1、port2和port3),网络设备在第一子帧中关断至少一个第一OFDM符号以及一个第二OFDM符号,即网络设备在第一子帧中要么不发CRS,要么仅在1、2或3个第一OFDM符号中发送R0和R1,且仅在1个第二OFDM符号上发送R2和R3。此外,若目标小区还配置有更多port,例如,8个port等等,则网络设备在第一子帧中关断至少一个第一OFDM符号以及部分第二OFDM符号。
在另一种可能的实现方式中,若目标小区为基于FDD的小区,且配置有4个port(即port0、port1、port2和port3),网络设备在第一子帧中关断至少一个第一OFDM符号以及所有第二OFDM符号,即网络设备在第一子帧中要么不发CRS,要么仅在1、2或3个第一OFDM符号中发送R0和R1,且不发送R2和R3(若网络设备在第一子帧中的1个第一OFDM符号发送R0和R1,可和图7所示的情况相同,若网络设备在第一子帧中的2个第一OFDM符号发送R0和R1,可和图8所示的情况相同,若网络设备在第一子帧中的3个第一OFDM 符号发送R0和R1,可和图9所示的情况相同)。较之于正常发送CRS的情况,则可以关断3至6个OFDM符号上的CRS。此外,若目标小区还配置有更多port,例如,8个port等等,则网络设备也仅在第一子帧的1、2或3个第一OFDM符号中,发送R0和R1,即网络设备在第一子帧中要么不发CRS,要么仅发送R0和R1,而不发送R2、R3以及其余CRS。
在另一种可能的实现方式中,若目标小区为基于TDD的小区,且第一子帧为基于TDD的下行子帧,由于基于FDD的下行子帧和基于TDD的下行子帧结构相似,则网络设备在基于TDD的下行子帧中少发CRS的相关说明可参考上述说明,此处不再赘述。
基于上述说明,进入DRX休眠期后,网络设备在目标小区的第一子帧中少发CRS的各种情况,如表2所示:
表2
更进一步地,若目标小区配置有1或2个port,则网络在除第一子帧外的其余子帧中,正常发送CRS,具体可参考表1中第一行和第二行的相关说明,此处不再赘述。若目标小区配置有至少3个port,在进入DRX休眠期后,网络设备不仅可在目标小区的第一子帧中少发CRS,还可在目标小区的第二子帧中少发CRS。其中,目标小区的第二子帧通常指目标小区的每个帧中的部分子帧,且为具有特定序号的子帧。第二子帧可以是基于FDD的下行子帧,也可以是基于TDD的下行子帧,还可以是基于TDD的特殊子帧。下文将分别进行介绍:
在一种可能的实现方式中,若目标小区为基于FDD的小区,对于目标小区的每个帧中序号为4、5或9的子帧,这部分子帧中有一部分OFDM符号用于承载CRS,而另一部分OFDM符号则可用于承载其它信号(实际上承不承载看具体的通信需求),即这部分子帧中可承载其它信号,例如寻呼消息,SIB消息,RAR消息等等。在这部分子帧中,有某些子帧可被提前设置为PO子帧,例如,在序号为4、5或9的这部分子帧中,可将序号为4的子帧设置为PO子帧,表示该子帧可用于承载寻呼消息。对于序号为4、5或9的这部分子帧,网络设备可从中选择出为非PO子帧,且实际上未承载SIB消息和/或RAR消息的子帧,作为目标小区的第二子帧。
在另一种可能的实现方式中,若目标小区为基于TDD的小区,对于目标小区的每个帧中序号为1、5或6的子帧(可能是下行子帧,也可能是特殊子帧),这部分子帧中有一部分OFDM符号用于承载CRS,而另一部分OFDM符号则可用于承载其它信号,例如寻呼消息,SIB消息,RAR消息等等。对于序号为1、5或6的这部分子帧,网络设备可从中选择出为非PO子帧,且实际上未承载SIB消息和/或RAR消息的子帧,作为目标小区的第二子帧。
网络设备在确定目标小区的第二子帧后,可在第二子帧中少发CRS。具体地,网络设备在目标小区的第二子帧中,关断每个第二OFDM符号且不关断第一OFDM符号,即网络设备在第二子帧中,仅正常发送R0和/或R1,而不发送R2、R3等CRS。
可以理解的是,当第二子帧为基于FDD的下行子帧时,则网络设备仅在第二子帧的4个第一OFDM符号上发送R0和/或R1,而不发送R2、R3等CRS。当第二子帧为基于TDD的下行子帧时,则网络设备仅在第二子帧的4个第一OFDM符号上发送R0和/或R1,而不发送R2、R3等CRS。当第二子帧为基于TDD的特殊子帧时,则网络设备仅在第二子帧的1至4个第一OFDM符号上发送R0和/或R1,而不发送R2、R3等CRS。较之正常发送CRS的情况,网络设备也可关断至少1个OFDM符号上的CRS。
基于上述说明,进入DRX休眠期后,网络设备在目标小区的第二子帧中少发CRS的各种情况,如表3所示:
表3
更进一步地,由于空闲态终端设备和位于目标小区的相邻小区内的终端设备(也可称为邻区终端设备)会持续测量目标小区的RSRP。为了保证这部分终端设备的RSRP测量不会受到影响,可对空闲态终端设备和邻区终端设备分别进行CRS处理。
具体地,网络设备可通过目标小区以及相邻小区,向邻区终端设备发送通知信息,该通知信息用于指示邻区终端设备在目标小区的第三子帧中接收为R0和/或R1(R0、R1可用于指示终端设备测量目标小区的RSRP)。其中,若目标小区为基于FDD的小区,则第三子帧可以是序号为0、4、5或9的子帧。若目标小区为基于TDD的小区,则第三子帧可以是序号为0、1、5或6的子帧。在基于FDD的小区中或基于TDD的小区中,序号为0的子帧均需承载主信息块(Master Information Block,MIB)消息,故网络设备在序号为0的子帧中需正常发送CRS。基于前述正常发送CRS和少发CRS的相关说明可知,在基于FDD的小区中,网络设备在序号为4、5或9的子帧中至少正常发送R0和/或R1,在基于TDD的小区中,网络设备在序号为1、5或6的子帧中至少正常发送R0和/或R1。因此,网络设备在 第三子帧中,至少保证了R0和/或R1的正常发送,故邻区终端设备可在目标小区的第三子帧中接收R0和/或R1,从而保证RSRP测量不会受到影响。
同理,空闲态终端设备也可在目标小区的第三子帧中接收到R0和/或R1,从而保证RSRP测量不会受到影响。空闲态终端设备与邻区终端设备之间的区别在于,空闲态终端设备不需网络设备通知,即可在目标的第三子帧中接收到R0和/或R1。然而,邻区终端设备则需要网络设备提前发送通知消息,然后基于该通知消息在目标的第三子帧中接收到R0和/或R1,该通知消息可以包含某种特殊的伪装信息,例如,该通知消息可通知邻区终端设备,目标小区为MBSFN小区(但目标小区实际上为常规小区),使得邻区终端设备在目标的第三子帧中接收到R0和/或R1。
本实施例中,网络设备确定N个参数中的至少一个参数小于或等于相应的阈值,并确定目标小区内的每个终端设备均处于DRX休眠期后,则在第一子帧中关断至少一个第一OFDM符号,第一OFDM符号可用于承载第一端口和/或第二端口对应的CRS。由于目标小区内的每个终端设备均处于DRX休眠期中,网络设备在第一子帧中关断至少一个OFDM符号上的CRS,并不会影响终端设备的通信性能。故相对于传统的符号关断技术,本申请实施例可在保证终端设备的通信性能不下降的前提下,关断更多的OFDM符号,以进一步降低网络设备的功耗。
图10为本申请实施例提供的信号传输的方法的另一流程示意图。如图10所示,该方法可以由网络设备执行,也可以由网络设备的部件(例如处理器、芯片、或芯片系统等)执行,以由网络设备执行为示例,该方法包括:
1001、网络设备获取辅载波小区的N个参数,参数用于指示辅载波小区的实时状况,N为大于或等于1的整数。
本实施例中,网络设备可实时获取辅载波小区的N个参数,网络设备所获取的N个参数中,每个参数均可用于指示辅载波小区的实时状况,例如,负载状况和性能状况等等。在一种可能的实现方式中,网络设备所获取的N个参数可包括上行业务负载、下行业务负载、辅载波小区内的终端设备的数量、信息传输的速率和信息传输的时延等参数中的一个或多个。图11为本申请实施例提供的多载波场景的一个示意图。如图11所示,本实施例可应用于多载波场景中。具体地,基于CA技术,网络设备可为某个扇区的终端设备分配一个主载波和至少一个辅载波(图11中以n个辅载波示意,n为大于或等于1的整数),辅载波小区即为网络设备为某个扇区的终端设备所分配的辅载波。
1002、网络设备确定N个参数中的至少一个参数小于或等于预置的阈值后,确定辅载波小区的状态。
网络设备获取到辅载波小区的N个参数后,可判断N个参数中的至少一个参数是否小于或等于相应的阈值。若确定N个参数中的至少一个参数小于或等于相应的阈值,网络设备再确定辅载波小区的状态。具体地,辅载波小区具有三种状态,分别为第一状态、第二状态和第三状态。第一状态指:辅载波小区已被配置至终端设备且未被激活,即辅载波小区已被网络设备配置至一个或多个终端设备,但该辅载波小区未被网络设备激活。第二状态指:辅载波小区未被配置至终端设备,即辅载波小区未被网络设备配置至任一终端设 备。第三状态指:辅载波小区已被配置至终端设备且已被激活,即辅载波小区已被网络设备配置至一个或多个终端设备,且该辅载波小区已被网络设备激活。
1003、网络设备确定辅载波小区处于第一状态后,则在辅载波小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
当网络设备确定辅载波小区已被配置至终端设备且未被激活时,则可以少发CRS。具体地,网络设备在辅载波小区的第一子帧中,关断至少一个第一OFDM符号,即网络设备在辅载波小区的第一子帧中,要么不发送R0和/或R1,要么在1、2或3个OFDM符号中发送为R0和R1。其中,目标小区的第一子帧通常指目标小区的每个帧中的部分子帧,且为具有特定序号的子帧。第一子帧可通过多种方式确定,下文将分别进行介绍:
在一种可能的实现方式中,若辅载波小区为基于FDD的小区,网络设备则选择辅载波小区的每个帧中序号为1、2、3、4、5、6、7、8或9的子帧,作为辅载波小区的第一子帧。
在另一种可能的实现方式中,若辅载波小区为基于TDD的小区,网络设备则选择辅载波小区的每个帧中序号为1、3、4、5、6、7、8或9的子帧(可能是下行子帧,也可能是特殊子帧),作为辅载波小区的第一子帧。
网络设备在确定辅载波小区的第一子帧后,可在第一子帧中少发CRS。网络设备在辅载波小区的第一子帧中少发CRS的介绍可参考图2所示实施例中,网络设备在目标小区的第一子帧中少发CRS的相关说明部分,此处不再赘述。
此外,当网络设备确定辅载波小区已被配置至终端设备且未被激活时,在基于FDD的小区中或基于TDD的小区中,序号为0的子帧均需承载MIB消息,故网络设备在序号为0的子帧中需正常发送CRS。
1004、网络设备确定辅载波小区处于第二状态后,则在辅载波小区的所有子帧中不发送CRS。
当网络设备确定辅载波小区未被配置至终端设备时,则可以不发CRS,即在辅载波小区的所有子帧中不发送CRS。需要说明的是,若辅载波小区为基于FDD的小区,则辅载波小区的所有子帧中,包括序号为0、1、2、3、4、5、6、7、8和9的子帧。若辅载波小区为基于TDD的小区,则辅载波小区的所有子帧中,包括序号为0、1、3、4、5、6、7、8和9的子帧。
应理解,本实施例中可选择性地执行步骤1003和步骤1004。例如,仅执行步骤1003,又如,仅执行步骤1004,再如,步骤1003和步骤1004均执行,此处不做限定。
更进一步地,当网络设备确定辅载波小区处于第三状态,则在辅载波小区的所有子帧中正常发送CRS。
此外,辅载波小区的子帧还可用于发送其它下行信号,为了进一步减小网络设备的功耗,当辅载波小区处于不同的状态时,可适当减少其它下行信号的发送,下文将分别进行介绍:
在一种可能的实现方式中,若确定辅载波小区处于第二状态,网络设备则在辅载波小 区的所有子帧中保持静默。例如,网络设备在所有子帧中不发送同步信道(synchronization channel,SCH)、物理广播信道(physical broadcast channel,PBCH)、PCFICH、PHICH、PDCCH和PDSCH等等。
在另一种可能的实现方式中,若确定辅载波小区处于第一状态,网络设备则在辅载波小区的所有子帧中不发送PCFICH、PHICH、PDCCH和PDSCH,而SCH和PBCH则正常发送。
在另一种可能的实现方式中,若辅载波小区处于第三状态,网络设备则在辅载波小区的所有子帧中不发送PHICH、公共PDCCH(供辅载波小区内的所有终端设备使用)、寻呼消息、SIB消息和RAR消息,而SCH、PBCH、PCFICH、专用PDCCH(供辅载波小区内的部分终端设备专用)和数据信号则正常发送。
本实施例中,网络设备确定辅载波小区的N个参数中的至少一个参数小于或等于相应的阈值,且确定辅载波小区已被配置至终端设备且未被激活后,网络设备网络设备在辅载波小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。由于辅载波小区处于第一状态,网络设备在第一子帧中关断至少一个OFDM符号上的CRS,并不会影响终端设备的通信性能。故相对于传统的符号关断技术,本申请实施例可在保证终端设备的通信性能不下降的前提下,关断更多的OFDM符号,以进一步降低网络设备的功耗。
以上是对本申请实施例提供的信号传输的方法所进行的详细说明,以下将对本申请实施例提供的通信装置进行介绍。在本申请实施例中,可以将具有收发功能的天线和射频电路视为终端的收发单元,将具有处理功能的处理器视为终端的处理单元。图12为本申请实施例提供的网络设备的一个结构示意图,如图12所示,该网络设备包括收发单元和处理单元1202。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器,处理单板,处理模块、处理装置等。可选的,可以将收发单元中用于实现接收功能的器件视为接收单元1201,将收发单元中用于实现发送功能的器件视为发送单元1203,即收发单元包括接收单元1201和发送单元1203。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元1201有时也可以称为接收机、接收器、或接收电路等。发送单元1203有时也可以称为发射机、发射器或者发射电路等。应理解,收发单元用于执行图2所示实施例中网络设备的发送操作和接收操作,处理单元1202用于执行图2所示实施例中网络设备上除了收发操作之外的其他操作。
具体地,接收单元1201,用于获取目标小区的N个参数,参数用于指示目标小区的实时状况,N为大于或等于1的整数;
处理单元1202,用于确定N个参数中的至少一个参数是否小于或等于相应的阈值,且确定目标小区内的每个连接态终端设备是否均处于DRX休眠期或目标小区内无连接态终端;
发送单元1203,用于确定N个参数中的至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于DRX休眠期后或目标小区内无连接态终端,则在目标小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
在一种可能的实现方式中,第一OFDM符号被关断的数量为4、3、2或1。
在一种可能的实现方式中,第一端口对应的CRS和第二端口对应的CRS均用于指示终端设备测量目标小区的RSRP。
在一种可能的实现方式中,处理单元1202还用于确定目标小区内的每个连接态终端设备均处于DRX休眠期,其中,每个连接态终端设备的DRX周期具有相同的起始时间和相同的终止时间。
在一种可能的实现方式中,若目标小区配置有至少3个端口,发送单元1203还用于在目标小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,每个第二OFDM符号用于承载除第一端口和第二端口外的其余端口对应的CRS。
在一种可能的实现方式中,若目标小区为基于FDD的小区,第一子帧的序号为1、2、3、6、7或8,且第一子帧不承载SIB消息和/或RAR消息。
在一种可能的实现方式中,若目标小区为基于TDD的小区,第一子帧的序号为3、4、7、8或9,且第一子帧不承载SIB消息和/或RAR消息。
在一种可能的实现方式中,若目标小区配置有至少3个端口,发送单元1203还用于确定至少一个参数小于或等于相应的阈值,并确定目标小区内的每个连接态终端设备均处于非连续接收DRX休眠期后或目标小区内无连接态终端,则在目标小区的第二子帧中,关断每个第二OFDM符号且不关断第一OFDM符号。
在一种可能的实现方式中,若目标小区为基于FDD的小区,则第二子帧的序号为4、5或9,第二子帧为非PO子帧,且不承载SIB消息和/或RAR消息。
在一种可能的实现方式中,若目标小区为基于TDD的小区,则第二子帧的序号为1、5或6,第二子帧为非PO子帧,且不承载SIB消息和/或RAR消息。
在一种可能的实现方式中,发送单元1203还用于向位于目标小区的相邻小区内的终端设备发送通知信息,通知信息用于指示相邻小区内的终端设备在目标小区的第三子帧中,接收第一端口和/或第二端口对应的CRS;若目标小区为基于FDD的小区,则第三子帧的序号为0、4、5或9;若目标小区为基于TDD的小区,则第三子帧的序号0、1、5或6。
在一种可能的实现方式中,第一端口为port0,第二端口为port1。
在一种可能的实现方式中,N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延中的一个或多个。
图13为本申请实施例提供的网络设备的另一结构示意图。如图13所示,该网络设备包括收发单元和处理单元1302。收发单元也可以称为收发器、收发机、收发装置等。处理单元也可以称为处理器,处理单板,处理模块、处理装置等。可选的,可以将收发单元中用于实现接收功能的器件视为接收单元1301,将收发单元中用于实现发送功能的器件视为发送单元1303,即收发单元包括接收单元1301和发送单元1303。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元1301有时也可以称为接收机、接收器、或接收电路等。发送单元1303有时也可以称为发射机、发射器或者发射电路等。应理解,收发单元用于执行图2所示实施例中网络设备的发送操作和接收操作,处理单元1302用于执行图10所示实施例中网络设备上除了收发操作之外的其他操作。
具体地,接收单元1301,用于获取辅载波小区的N个参数,参数用于指示辅载波小区的实时状况,N为大于或等于1的整数;
处理单元1302,用于确定N个参数中的至少一个参数是否小于或等于相应的阈值,且确定辅载波小区是否处于第一状态;
发送单元1303,用于确定N个参数中的至少一个参数小于或等于相应的阈值,且确定辅载波小区处于第一状态后,则在辅载波小区的第一子帧中,关断至少一个第一OFDM符号,第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
在一种可能的实现方式中,第一OFDM符号被关断的数量为4、3、2或1。
在一种可能的实现方式中,第一端口对应的CRS和第二端口对应的CRS均用于指示终端设备测量辅载波小区的RSRP。
在一种可能的实现方式中,若辅载波小区配置有至少3个端口,发送单元1303还用于在辅载波小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,每个第二OFDM符号用于承载除第一端口和第二端口外的其余端口对应的CRS。
在一种可能的实现方式中,若辅载波小区为基于FDD的小区,则第一子帧的序号为1、2、3、4、5、6、7、8或9。
在一种可能的实现方式中,若辅载波小区为基于TDD的小区,则第一子帧的序号为1、3、4、5、6、7、8或9。
在一种可能的实现方式中,发送单元1303还用于确定至少一个参数小于或等于相应的阈值,且确定辅载波小区处于第二状态,则在辅载波小区的每个子帧中保持静默。
在一种可能的实现方式中,发送单元1303还用于确定至少一个参数小于或等于相应的阈值,且确定辅载波小区处于第一状态,则在辅载波小区的每个子帧中不发送物理控制格式指示信道PCFICH、物理混合自动重传指示信道PHICH、下行物理控制信道PDCCH和下行物理共享信道PDSCH。
在一种可能的实现方式中,发送单元1303还用于确定至少一个参数小于或等于相应的阈值,且确定辅载波小区处于第三状态,则在辅载波小区的每个子帧中不发送PHICH、公共PDCCH、寻呼消息、SIB消息和RAR消息。
在一种可能的实现方式中,第一状态为辅载波小区已被配置至终端设备且未被激活。
在一种可能的实现方式中,第二状态为辅载波小区未被配置至终端设备。
在一种可能的实现方式中,第三状态为辅载波小区已被配置至终端设备且已被激活。
在一种可能的实现方式中,第一端口为port0,第二端口为port1。
在一种可能的实现方式中,N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延中的一个或多个。
图14为本申请实施例提供的网络设备的又一结构示意图。如图14所示,网络设备1400可适用于图1所示出的系统中,执行上述方法实施例中网络设备的功能。为了便于说明,图14仅示出了网络设备的主要部件。如图14所示,网络设备1400包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理,以及对整个网络设备进行控制,执行软件程序,处理软件程序的数据,例如用于支持 网络设备执行上述方法实施例中所描述的动作,如接收唤醒信号的使用门限,根据该使用门限和eDRX周期确定是否监听唤醒信号。存储器主要用于存储软件程序和数据,例如存储上述实施例中所描述唤醒信号的使用门限等。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器,主要用于收发电磁波形式的射频信号。输入输出装置,例如触摸屏、显示屏,键盘等主要用于接收用户输入的数据以及对用户输出数据。
当网络设备开机后,处理器可以读取存储单元中的软件程序,解释并执行软件程序的指令,处理软件程序的数据。当需要通过无线发送数据时,处理器对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到网络设备时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器,处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解,为了便于说明,图14仅示出了一个存储器和一个处理器。在实际的网络设备中,可以存在多个处理器和多个存储器。存储器也可以称为存储介质或者存储设备等,本申请实施例对此不做限定。
作为一种可选的实现方式,处理器可以包括基带处理器和/或中央处理器,基带处理器主要用于对通信协议以及通信数据进行处理,中央处理器主要用于对整个网络设备进行控制,执行软件程序,处理软件程序的数据。图14中的处理器可以集成基带处理器和中央处理器的功能,本领域技术人员可以理解,基带处理器和中央处理器也可以是各自独立的处理器,通过总线等技术互联。本领域技术人员可以理解,网络设备可以包括多个基带处理器以适应不同的网络制式,网络设备可以包括多个中央处理器以增强其处理能力,网络设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中,也可以以软件程序的形式存储在存储单元中,由处理器执行软件程序以实现基带处理功能。
在本申请实施例中,可以将具有收发功能的天线和控制电路视为网络设备1400的收发器1401,例如,用于支持网络设备执行前述的接收功能和发送功能。将具有处理功能的处理器视为网络设备1400的处理器1402。如图14所示,网络设备1400包括收发器1401和处理器1402。收发器也可以称为收发机、收发装置等。可选的,可以将收发器1401中用于实现接收功能的器件视为接收单元,将收发器1401中用于实现发送功能的器件视为发送单元,即收发器1401包括接收单元和发送单元,接收单元也可以称为接收机、输入口、接收电路等,发送单元可以称为发射机、发射器或者发射电路等。
处理器1402可用于执行该存储器存储的指令,以控制收发器1401接收信号和/或发送信号,完成上述方法实施例中网络设备的功能。作为一种实现方式,收发器1401的功能可以考虑通过收发电路或者收发的专用芯片实现。
本申请实施例还涉及一种处理器,用于执行如图2或图10所示实施例中的方法。
本申请实施例还涉及一种计算机程序,该程序在被处理器执行时,用于执行如图2或 图10所示实施例中的方法。
本申请实施例还涉及一种计算机程序产品,所述程序产品包括:计算机程序代码,当所述程序代码被通信装置(例如,网络设备)的通信单元、处理单元或收发器、处理器运行时,使得通信设备执行如图2或图10所示实施例中的方法。
本申请实施例还涉及一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序或指令,所述计算机程序或指令使得通信装置(例如,网络设备)执行如图2或图10所示实施例中的方法。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统,装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
Claims (59)
- 一种信号传输的方法,其特征在于,所述方法包括:获取目标小区的N个参数,所述参数用于指示所述目标小区的实时状况,N为大于或等于1的整数;确定所述N个参数中的至少一个所述参数小于或等于相应的阈值,并确定所述目标小区内的每个连接态终端设备均处于非连续接收DRX休眠期或目标小区内无连接态终端后,则在所述目标小区的第一子帧中,关断至少一个第一正交频分复用OFDM符号,所述第一OFDM符号用于承载第一端口和/或第二端口对应的小区特定参考信号CRS。
- 根据权利要求1所述的方法,其特征在于,所述第一OFDM符号被关断的数量为4、3、2或1。
- 根据权利要求1或2所述的方法,其特征在于,所述第一端口对应的CRS和所述第二端口对应的CRS均用于指示终端设备测量所述目标小区的参考信号接收功率RSRP。
- 根据权利要求1至3任意一项所述的方法,其特征在于,所述确定所述目标小区内的每个终端设备均处于DRX休眠期包括:确定所述目标小区内的每个连接态终端设备均处于DRX休眠期,其中,所述每个连接态终端设备的DRX周期具有相同的起始时间和相同的终止时间,或,不同的连接态终端设备的DRX周期具有不同的起始时间和/或不同的终止时间。
- 根据权利要求1至3任意一项所述的方法,其特征在于,若所述目标小区配置有至少3个端口,则所述在所述目标小区的第一子帧中,关断至少一个第一OFDM符号包括:在所述目标小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,所述每个第二OFDM符号用于承载除所述第一端口和所述第二端口外的其余端口对应的CRS。
- 根据权利要求1至5任意一项所述的方法,其特征在于,若目标小区为基于频分双工FDD的小区,所述第一子帧的序号为1、2、3、6、7或8,且所述第一子帧不承载系统信息块SIB消息和/或无线接入响应RAR消息。
- 根据权利要求1至5任意一项所述的方法,其特征在于,若目标小区为基于时分双工TDD的小区,所述第一子帧的序号为3、4、7、8或9,且所述第一子帧不承载SIB消息和/或RAR消息。
- 根据权利要求5所述的方法,其特征在于,若所述目标小区配置有至少3个端口,所述方法还包括:确定所述至少一个参数小于或等于相应的阈值,并确定所述目标小区内的每个连接态终端设备均处于非连续接收DRX休眠期后或无连接态终端,则在所述目标小区的第二子帧中,关断所述每个第二OFDM符号且不关断所述第一OFDM符号。
- 根据权利要求8所述的方法,其特征在于,若所述目标小区为基于FDD的小区,则所述第二子帧的序号为4、5或9,所述第二子帧为非寻呼时机PO子帧,且不承载SIB消息和/或RAR消息。
- 根据权利要求8所述的方法,其特征在于,若所述目标小区为基于TDD的小区, 则所述第二子帧的序号为1、5或6,所述第二子帧为非PO子帧,且不承载SIB消息和/或RAR消息。
- 根据权利要求8至10任意一项所述的方法,其特征在于,所述方法还包括:向位于所述目标小区的相邻小区内的终端设备发送通知信息,所述通知信息用于指示所述相邻小区内的终端设备在所述目标小区的第三子帧中,接收所述第一端口和/或第二端口对应的CRS;若所述目标小区为基于FDD的小区,则所述第三子帧的序号为0、4、5或9;若所述目标小区为基于TDD的小区,则所述第三子帧的序号0、1、5或6。
- 根据权利要求1至11任意一项所述的方法,其特征在于,所述第一端口为协议端口port0,所述第二端口为port1。
- 根据权利要求1至12任意一项所述的方法,其特征在于,所述N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延中的一个或多个。
- 一种信号传输的方法,其特征在于,所述方法包括:获取辅载波小区的N个参数,所述参数用于指示所述辅载波小区的实时状况,N为大于或等于1的整数;确定所述N个参数中的至少一个所述参数小于或等于相应的阈值,且确定所述辅载波小区处于第一状态后,则在所述辅载波小区的第一子帧中,关断至少一个第一OFDM符号,所述第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
- 根据权利要求14所述的方法,其特征在于,所述第一OFDM符号被关断的数量为4、3、2或1。
- 根据权利要求14或15所述的方法,其特征在于,所述第一端口对应的CRS和所述第二端口对应的CRS均用于指示终端设备测量所述辅载波小区的RSRP。
- 根据权利要求14至16任意一项所述的方法,其特征在于,若辅载波小区配置有至少3个端口,则所述在辅载波小区的第一子帧中,关断至少一个第一OFDM符号包括:在辅载波小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,所述每个第二OFDM符号用于承载除第一端口和第二端口外的其余端口对应的CRS。
- 根据权利要求14至17任意一项所述的方法,其特征在于,若所述辅载波小区为基于FDD的小区,则所述第一子帧的序号为1、2、3、4、5、6、7、8或9。
- 根据权利要求14至17任意一项所述的方法,其特征在于,若所述辅载波小区为基于TDD的小区,则所述第一子帧的序号为1、3、4、5、6、7、8或9。
- 根据权利要求14至19任意一项所述的方法,其特征在于,所述方法还包括:确定所述至少一个参数小于或等于相应的阈值,且确定所述辅载波小区处于所述第二状态,则在所述辅载波小区的每个子帧中保持静默。
- 根据权利要求14至20任意一项所述的方法,其特征在于,所述方法还包括:确定所述至少一个参数小于或等于相应的阈值,且确定所述辅载波小区处于第一状态,则在所述辅载波小区的每个子帧中不发送物理控制格式指示信道PCFICH、物理混合自动重 传指示信道PHICH、下行物理控制信道PDCCH和下行物理共享信道PDSCH。
- 根据权利要求14至21任意一项所述的方法,其特征在于,所述方法还包括:确定所述至少一个参数小于或等于相应的阈值,且确定所述辅载波小区处于第三状态,则在所述辅载波小区的每个子帧中不发送PHICH、公共PDCCH、寻呼消息、SIB消息和RAR消息。
- 根据权利要求14至22任意一项所述的方法,其特征在于,所述第一状态为所述辅载波小区已被配置至终端设备且未被激活。
- 根据权利要求20所述的方法,其特征在于,所述第二状态为所述辅载波小区未被配置至终端设备。
- 根据权利要求22所述的方法,其特征在于,所述第三状态为所述辅载波小区已被配置至终端设备且已被激活。
- 根据权利要求14至25任意一项所述的方法,其特征在于,所述第一端口为port0,所述第二端口为port1。
- 根据权利要求14至26任意一项所述的方法,其特征在于,所述N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延中的一个或多个。
- 一种通信装置,其特征在于,所述通信装置包括:接收单元,用于获取目标小区的N个参数,所述参数用于指示所述目标小区的实时状况,N为大于或等于1的整数;处理单元,用于确定所述N个参数中的至少一个所述参数是否小于或等于相应的阈值,并确定所述目标小区内的每个连接态终端设备是否均处于非连续接收DRX休眠期或目标小区内无连接态终端;发送单元,用于确定所述N个参数中的至少一个所述参数小于或等于相应的阈值,并确定所述目标小区内的每个连接态终端设备均处于非连续接收DRX休眠期或目标小区内无连接态终端后,则在所述目标小区的第一子帧中,关断至少一个第一OFDM符号,所述第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
- 根据权利要求28所述的装置,其特征在于,所述第一OFDM符号被关断的数量为4、3、2或1。
- 根据权利要求28或29所述的装置,其特征在于,所述第一端口对应的CRS和所述第二端口对应的CRS均用于指示终端设备测量所述目标小区的参考信号接收功率RSRP。
- 根据权利要求28至30任意一项所述的装置,其特征在于,所述处理单元用于确定所述目标小区内的每个连接态终端设备均处于DRX休眠期,其中,所述每个连接态终端设备的DRX周期具有相同的起始时间和相同的终止时间,或,不同的连接态终端设备的DRX周期具有不同的起始时间和/或不同的终止时间。
- 根据权利要求28至30任意一项所述的装置,其特征在于,若所述目标小区配置有至少3个端口,则所述发送单元用于在所述目标小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,所述每个第二OFDM符号用于承载除所述第一端口和 所述第二端口外的其余端口对应的CRS。
- 根据权利要求28至32任意一项所述的装置,其特征在于,若目标小区为基于FDD的小区,所述第一子帧的序号为1、2、3、6、7或8,且所述第一子帧不承载SIB消息和/或RAR消息。
- 根据权利要求28至32任意一项所述的装置,其特征在于,若目标小区为基于TDD的小区,所述第一子帧的序号为3、4、7、8或9,且所述第一子帧不承载SIB消息和/或RAR消息。
- 根据权利要求32所述的装置,其特征在于,若所述目标小区配置有至少3个端口,所述发送单元还用于确定所述至少一个参数小于或等于相应的阈值,并确定所述目标小区内的每个连接态终端设备均处于非连续接收DRX休眠期后或无连接态终端,则在所述目标小区的第二子帧中,关断所述每个第二OFDM符号且不关断所述第一OFDM符号。
- 根据权利要求35所述的装置,其特征在于,若所述目标小区为基于FDD的小区,则所述第二子帧的序号为4、5或9,所述第二子帧为非寻呼时机PO子帧,且不承载SIB消息和/或RAR消息。
- 根据权利要求35所述的装置,其特征在于,若所述目标小区为基于TDD的小区,则所述第二子帧的序号为1、5或6,所述第二子帧为非PO子帧,且不承载SIB消息和/或RAR消息。
- 根据权利要求35至37任意一项所述的装置,其特征在于,所述发送单元还用于向位于所述目标小区的相邻小区内的终端设备发送通知信息,所述通知信息用于指示所述相邻小区内的终端设备在所述目标小区的第三子帧中,接收所述第一端口和/或第二端口对应的CRS;若所述目标小区为基于FDD的小区,则所述第三子帧的序号为0、4、5或9;若所述目标小区为基于TDD的小区,则所述第三子帧的序号0、1、5或6。
- 根据权利要求28至38任意一项所述的装置,其特征在于,所述第一端口为协议端口port0,所述第二端口为port1。
- 根据权利要求28至39任意一项所述的装置,其特征在于,所述N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延中的一个或多个。
- 一种通信装置,其特征在于,所述通信装置包括:接收单元,用于获取辅载波小区的N个参数,所述参数用于指示所述辅载波小区的实时状况,N为大于或等于1的整数;处理单元,用于所述N个参数中的至少一个所述参数是否小于或等于相应的阈值,且确定所述辅载波小区是否处于第一状态;发送单元,用于确定所述N个参数中的至少一个所述参数小于或等于相应的阈值,且确定所述辅载波小区处于第一状态后,则在所述辅载波小区的第一子帧中,关断至少一个第一OFDM符号,所述第一OFDM符号用于承载第一端口和/或第二端口对应的CRS。
- 根据权利要求41所述的装置,其特征在于,所述第一OFDM符号被关断的数量为 4、3、2或1。
- 根据权利要求41或42所述的装置,其特征在于,所述第一端口对应的CRS和所述第二端口对应的CRS均用于指示终端设备测量所述辅载波小区的RSRP。
- 根据权利要求41至43任意一项所述的装置,其特征在于,若辅载波小区配置有至少3个端口,则所述发送单元用于在辅载波小区的第一子帧中,关断至少一个第一OFDM符号和每个第二OFDM符号,所述每个第二OFDM符号用于承载除第一端口和第二端口外的其余端口对应的CRS。
- 根据权利要求41至44任意一项所述的装置,其特征在于,若所述辅载波小区为基于FDD的小区,则所述第一子帧的序号为1、2、3、4、5、6、7、8或9。
- 根据权利要求41至44任意一项所述的装置,其特征在于,若所述辅载波小区为基于TDD的小区,则所述第一子帧的序号为1、3、4、5、6、7、8或9。
- 根据权利要求41至46任意一项所述的装置,其特征在于,所述发送单元还用于确定所述至少一个参数小于或等于相应的阈值,且确定所述辅载波小区处于所述第二状态,则在所述辅载波小区的每个子帧中保持静默。
- 根据权利要求41至47任意一项所述的装置,其特征在于,所述发送单元还用于确定所述至少一个参数小于或等于相应的阈值,且确定所述辅载波小区处于第一状态,则在所述辅载波小区的每个子帧中不发送PCFICH、PHICH、PDCCH和PDSCH。
- 根据权利要求41至48任意一项所述的装置,其特征在于,所述发送单元还用于确定所述至少一个参数小于或等于相应的阈值,且确定所述辅载波小区处于第三状态,则在所述辅载波小区的每个子帧中不发送PHICH、公共PDCCH、寻呼消息、SIB消息和RAR消息。
- 根据权利要求41至49任意一项所述的装置,其特征在于,所述第一状态为所述辅载波小区已被配置至终端设备且未被激活。
- 根据权利要求47所述的装置,其特征在于,所述第二状态为所述辅载波小区未被配置至终端设备。
- 根据权利要求49所述的装置,其特征在于,所述第三状态为所述辅载波小区已被配置至终端设备且已被激活。
- 根据权利要求41至52任意一项所述的装置,其特征在于,所述第一端口为port0,所述第二端口为port1。
- 根据权利要求41至53任意一项所述的装置,其特征在于,所述N个参数包括:上行业务负载、下行业务负载、终端设备的数量、信息传输的速率和信息传输的时延中的一个或多个。
- 一种通信装置,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现权利要求1至13中任一项所述的方法。
- 一种通信装置,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现权利要求14至 27中任一项所述的方法。
- 一种芯片,包括:处理器和接口,所述处理器通过所述接口和存储器耦合,所述处理器用于执行所述存储器中的计算机程序或代码,当所述计算机程序或代码被执行时,如权利要求1至13或14至27中任一项所述的方法被执行。
- 一种计算机可读存储介质,其特征在于,当指令在计算机装置上运行时,使得所述计算机装置执行如权利要求1至13或14至27任一项所述的方法。
- 一种计算机程序产品,其特征在于,所述计算机程序产品存储有指令,所述指令在由计算机执行时,使得所述计算机实施权利要求1至13或14至27任一项所述的方法。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100254471A1 (en) * | 2009-04-07 | 2010-10-07 | Hyunsoo Ko | Method of transmitting power information in wireless communication system |
CN102340852A (zh) * | 2010-07-20 | 2012-02-01 | 电信科学技术研究院 | 移动通信系统基站节能方法及装置 |
CN104618995A (zh) * | 2015-01-08 | 2015-05-13 | 大唐移动通信设备有限公司 | 一种符号关断的处理方法和设备 |
CN104717047A (zh) * | 2013-12-16 | 2015-06-17 | 中国移动通信集团公司 | 符号关断方法及装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8902830B2 (en) * | 2010-12-28 | 2014-12-02 | Motorola Mobility Llc | Energy-saving base station and method |
US10003986B2 (en) * | 2014-09-26 | 2018-06-19 | Futurewei Technologies, Inc. | Device, network, and method for communications with variable-duration reference signals |
DE102015110330A1 (de) * | 2015-06-26 | 2016-12-29 | Intel IP Corporation | Verfahren zum Energiesparen und Energiesparschaltung für eine Mobilvorrichtung |
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2020
- 2020-07-31 CN CN202010765245.9A patent/CN114070696B/zh active Active
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2021
- 2021-07-30 JP JP2023506320A patent/JP2023535833A/ja active Pending
- 2021-07-30 EP EP21851102.0A patent/EP4181581A4/en active Pending
- 2021-07-30 WO PCT/CN2021/109575 patent/WO2022022679A1/zh unknown
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2023
- 2023-01-20 US US18/157,215 patent/US20230156598A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100254471A1 (en) * | 2009-04-07 | 2010-10-07 | Hyunsoo Ko | Method of transmitting power information in wireless communication system |
CN102340852A (zh) * | 2010-07-20 | 2012-02-01 | 电信科学技术研究院 | 移动通信系统基站节能方法及装置 |
CN104717047A (zh) * | 2013-12-16 | 2015-06-17 | 中国移动通信集团公司 | 符号关断方法及装置 |
CN104618995A (zh) * | 2015-01-08 | 2015-05-13 | 大唐移动通信设备有限公司 | 一种符号关断的处理方法和设备 |
Non-Patent Citations (1)
Title |
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See also references of EP4181581A4 |
Also Published As
Publication number | Publication date |
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CN114070696A (zh) | 2022-02-18 |
US20230156598A1 (en) | 2023-05-18 |
EP4181581A1 (en) | 2023-05-17 |
EP4181581A4 (en) | 2024-03-06 |
CN114070696B (zh) | 2023-03-10 |
JP2023535833A (ja) | 2023-08-21 |
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