WO2018018512A1 - 通信方法和通信装置 - Google Patents
通信方法和通信装置 Download PDFInfo
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- WO2018018512A1 WO2018018512A1 PCT/CN2016/092104 CN2016092104W WO2018018512A1 WO 2018018512 A1 WO2018018512 A1 WO 2018018512A1 CN 2016092104 W CN2016092104 W CN 2016092104W WO 2018018512 A1 WO2018018512 A1 WO 2018018512A1
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- timer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/28—Timers or timing mechanisms used in protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/38—Connection release triggered by timers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/02—Data link layer protocols
Definitions
- the present invention relates to the field of communications and, more particularly, to a communication method and communication device.
- the connection status between the terminal device and the network device Take the connection status between the terminal device and the network device as an example.
- the terminal device When the terminal device is in the active state, the terminal device and the network device are in a connected state.
- the terminal device When the terminal device is in the inactive state, the terminal device and the network device are in the inactive state. There is another connection state between them.
- the network side device When there is no data transmission between the terminal device and the network side device, the network side device indicates that the terminal device enters an inactive state by transmitting radio resource control (RRC) high layer signaling to the terminal device, so as to facilitate the terminal device and The network side devices are in a corresponding connection state.
- RRC radio resource control
- the RRC high-level signaling requires a complicated encapsulation process when transmitting, and the system overhead is large.
- the terminal device parses the RRC high-level signaling with high complexity, it takes a lot of time and power consumption.
- the embodiment of the invention provides a communication method and a communication device.
- the communication device determines the connection state that needs to be entered by receiving the layer 2 PDU, which can reduce system overhead and reduce communication complexity.
- a communication method where the first device receives a layer 2 protocol data unit PDU sent by a second device, and the first device determines the first device according to the layer 2 PDU.
- the connection state that needs to be in between the second device and the second device.
- the process of the first device parsing the layer 2 PDU is relatively simple, which can reduce communication complexity, reduce system overhead, and shorten parsing delay; further, the solution can be applied to connection status between various devices. Determining, high flexibility, good compatibility and scalability; further, the implementation of the program is diversified, regardless of whether the first device is a terminal device or a network-side device, when the connection state needs to be converted , timely conversion of the connection state.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the first device and the second device includes a first connection a state or a second connection state, wherein the first connection state is a connection state between the terminal device and the network side device when the terminal device is in an active state; the second connection state is the A connection state between the terminal device and the network side device when the terminal device is in an inactive state.
- the RRC high-level signaling indicates that the terminal device enters the inactive state from the active state to the inactive state, and the solution is simple and easy to implement.
- the first device determines, according to the layer 2 PDU, a connection state that needs to be in between the first device and the second device, including: the first device is configured according to Whether the layer 2 PDU carries a data packet or determines, according to the first information carried in the layer 2 PDU, a connection state that needs to be in between the first device and the second device, where the first information is And configured to indicate whether there is subsequent data transmission between the first device and the second device.
- the signaling overhead can be saved, and the complexity of the layer 2 PDU is reduced; Determining a connection status, the first information and the data packet may be jointly carried in the layer 2 PDU, and the first information is transmitted to the first information while transmitting the data packet without additional signaling indication
- the device can save signaling overhead and reduce power consumption of the first device.
- the first device determines, according to whether the layer two PDU carries a data packet or according to the first information carried in the layer two PDU, the first device and the first Determining the connection state between the two devices, including: determining, when the first information is used to indicate subsequent data transmission between the first device and the second device, determining the first device and the The two devices need to be in a first connection state; and when the first information is used to indicate that there is no subsequent data transmission between the first device and the second device, determining the first device and the second The devices need to be in the second connection state.
- the first information indicates that different content corresponds to different connection states, so that the first device can quickly and efficiently determine the connection state that needs to be in the connection state.
- the first device determines, according to whether the layer two PDU carries a data packet or according to the first information carried in the layer two PDU, the first device and the first The connection state between the two devices is required to be: when the layer 2 PDU carries the data packet, determining that the first device and the second device need to be in the first connection state; Determining between the first device and the second device when the data packet is not carried To be in the second connection state.
- whether the layer 2 PDU carries data packets may respectively correspond to a connection state, so that the first device can quickly and efficiently determine the connection state that needs to be in the connection state.
- the layer 2 PDU carries the second information, where the second information is used to indicate a connection state that needs to be in between the first device and the second device, where the Determining, by the device, the connection state that needs to be in the first device and the second device according to the Layer 2 PDU, including: the first device according to the second information carried in the Layer 2 PDU, Determining a connection state that needs to be between the second device and the second device.
- the first device may directly determine the state that the user needs to be in accordance with the second information carried by the layer 2 PDU, and shorten the time delay of determining, by the first device, the connection state that needs to be in the The first device determines the efficiency of the connection state that needs to be in.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection
- the communication method further includes: after the first device receives the layer 2 PDU, starting the first timer; or, after the first device sends the third information to the second device, The first timer is started, where the third information is used to indicate that the first device determines to enter the second connection state; if the first timer expires, the first device connects the connection The state is transitioned from the first connected state to the second connected state.
- the first device may perform a transition of the connection state according to the first timer, which facilitates the first device to flexibly control the transition time of the connection state.
- the Layer 2 PDU carries a fourth information, where the fourth information is used to indicate a timing duration of the first timer, and the starting the first timer includes: The fourth information is started, and the first timer is started.
- the second device can manage the timing durations of the first timer and the second timer, it is advantageous for the first device and the second device to switch the connection state at the same time or in a similar time, thereby saving the first Power consumption of the device and the second device.
- the layer 2 PDU carries a fifth information, where the fifth information is used to request to acquire a timing duration of the second timer of the second device
- the communication method further includes: Determining, by the first device, a timing duration of the second timer; the first device sending sixth information to the second device, where the sixth information is used to indicate a timing duration of the second timer; The first timer is started, where: the first device sends the sixth device to the second device After the information is started, the first timer is started; or after the first device sends the sixth information to the second device, and after receiving the seventh information sent by the second device, the first device is started. a timer, wherein the seventh information is used to instruct the second device to determine to enter the second connection state.
- the first device determines the timing duration of the second timer of the second device, so that the first device manages the timing durations of the first timer and the second timer, which is beneficial to the first device and the second device.
- the device switches the connection state at the same time or in the same time, thereby saving power consumption of the first device and the second device.
- the communications method further includes: the first device sending the eighth information to the second device, The eighth information is used to indicate that the first device correctly receives the layer two PDU; or the first device sends ninth information to the second device, where the ninth information is used to indicate the first The connection state between the device and the second device is required.
- the first device may notify the second device of the determined connection state that the need is in, so that the second device can convert the connection state in time, and save power consumption of the second device.
- the first timer is configured with at least one first timing duration, and the at least one first timing duration includes the first timer indicated by the fourth information
- the second timer is configured with at least one second timing duration, and the at least one second timing duration includes a timing duration of the second timer indicated by the sixth information.
- the first timer and the second timer can be configured with a plurality of timing durations, so that the first device and/or the second device can flexibly select the corresponding timing duration to perform the connection state transition.
- the starting the first timer includes: starting the first timer according to the sixth information.
- the first device starts the first timer based on the timing duration configured to the second timer, so that the first device and the second device can simultaneously convert the first connection state to the second connection state.
- the timing duration of the first timer and/or the timing duration of the second timer are configured by a network side device or by a protocol; the first The timer and/or the second timer are based on a terminal configuration or based on a bearer configuration of the terminal.
- the first timer and the second timer are configured in a flexible manner, with good compatibility and expansion. Sex.
- the layer two PDU includes a packet data convergence protocol PDCP layer PDU, a radio link layer control protocol RLC layer PDU, or a MAC layer PDU through a medium access control.
- the Layer 2 PDU includes diverse content, and has better compatibility and scalability.
- the indication field used to carry the first information, the second information, the fourth information, or the fifth information may be located in the layer two PDU
- the header may be located at the end of the layer 2 PDU, and may also be located at any position of the layer 2 PDU.
- the indication field may be a new field in the PDU, or may include a special value in the PDU. Existing field.
- the indication field is located at the head or the tail of the layer 2 PDU, so that the first device can quickly and efficiently obtain the information carried by the indication field, thereby improving the first device to determine that the requirement is in the The efficiency of the connection state.
- a communication method includes: a second device generating a layer two protocol data unit PDU, wherein the layer two PDU is used by the first communication device to determine the first device and the first The connection state that needs to be in between the two devices; the second device sends the layer two PDU to the first device.
- the process of sending the layer 2 PDU by the second device is relatively simple, which can reduce communication complexity, reduce system overhead, and shorten delay.
- the entity is diversified, and the second device is the terminal device or the network device, and the layer 2 PDU can be sent to the first device, so that the first device can determine the connection that needs to be in time. status.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the first device and the second device includes a first connection state or a second connection state, where the first connection state is when the terminal device is in an active state, the terminal device And a connection state between the network device and the network device; the second connection state is a connection state between the terminal device and the network device when the terminal device is in an inactive state.
- the network side device indicates that the terminal device enters the inactive state from the active state through the RRC high layer signaling, which is low in complexity and easy to implement.
- the second device generates a layer 2 PDU, including: the second device, according to whether there is currently a data packet transmission between the first device and the second device, and/or the first device and Whether there is subsequent data transmission between the second devices, the Layer 2 PDU is generated.
- the second device generates the layer 2 PDU according to the transmission between the first device and the second device, so that the first device can determine the required to be in accordance with the layer 2 PDU in time and accurately. Connection Status.
- the second device is configured according to whether a data packet is currently transmitted between the first device and the second device, and/or the first device and the second device are Whether there is data transmission subsequently, the layer 2 PDU is generated, including: when the data packet is currently transmitted between the first device and the second device, the second device generates a device that carries the data packet Layer 2 PDU; when there is no data packet transmission between the first device and the second device, the second device generates the layer 2 PDU that does not carry a data packet; When the second device does not have data transmission subsequently, the second device generates the layer 2 PDU that carries the first information indicating that there is no subsequent data transmission between the first device and the second device. When the data transmission is performed between the first device and the second device, the second device generates a packet carrying a data transmission between the first device and the second device. The layer two PDU of a message.
- the second device may generate the corresponding layer 2 PDU in multiple manners for the first device to determine the connection state that needs to be in, and the solution is highly flexible.
- the communication method further includes: determining, by the second device, a connection state that needs to be in between the first device and the second device;
- the PDU includes: the second device generates the layer 2 PDU carrying second information indicating a connection state that needs to be in between the first device and the second device.
- the second device may directly send the second information to the first device to indicate the connection state that the user needs to be in, and may shorten the time delay of the first device to determine the connection state that needs to be in the The first device determines an efficiency of the connection state that needs to be in.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection
- the communication method further includes: after the second device sends the layer 2 PDU, the second timer is started; or after the second device receives the third information sent by the first device, Activating a second timer, where the third information is used to indicate that the first device determines Entering the second connection state; if the second timer expires, the second device converts the connection state from the first connection state to the second connection state.
- the second device can perform the conversion of the connection state according to the second timer, which is beneficial for the second device to flexibly control the transition time of the connection state.
- the generating, by the second device, the layer 2 PDU includes: the second device generating fourth information that carries a timing duration for indicating the first timer of the first device
- the layer 2 PDU is used by the first device to start a first timer of the first device according to the fourth information.
- the second device can manage the timing durations of the first timer and the second timer, which facilitates the first device and the second device to switch the connection state at the same time or in a similar time, thereby saving the first device. And the power consumption of the second device.
- the generating, by the second device, the layer 2 PDU, the second device generating, by the second device, the layer carrying the fifth information for requesting acquiring the timing duration of the second timer includes: the second device receives the sixth information sent by the first device, the sixth information is used to indicate a timing duration of the second timer;
- the timer includes: after the second device receives the sixth information sent by the first device, starts the second timer according to the sixth information; or the second device receives the first device After the sixth information is sent, and after the seventh information is sent to the first device, the second timer is started according to the sixth information, where the seventh information is used to indicate the second device It is determined to enter the second connection state.
- the first device can manage the timing durations of the first timer and the second timer, it is advantageous for the first device and the second device to switch the connection state at the same time or in a similar time, thereby saving the first Power consumption of the device and the second device.
- the communications method further includes: the second device receiving the sending by the first device
- the eighth information the eighth information is used to indicate that the first device correctly receives the layer two PDU; or the second device receives the ninth information sent by the first device, where the ninth information is used Indicates a connection state that needs to be in between the first device and the second device.
- the second device may receive the ninth information sent by the second device, so that the second device can convert the connection state in time, thereby saving power consumption of the second device.
- the first timer configuration is at least one a first timing duration
- the at least one first timing duration includes a timing duration of the first timer indicated by the fourth information
- the second timer is configured with at least one second timing duration
- the at least one The second timing duration includes a timing duration of the second timer indicated by the sixth information.
- the first timer and the second timer can be configured with a plurality of timing durations, so that the first device and/or the second device can flexibly select the corresponding timing duration to perform the connection state transition.
- the starting the second timer includes: starting the first timer according to the fourth information.
- the second device starts the second timer based on the timing duration configured to the first timer, so that the first device and the second device can simultaneously convert the first connection state to the second connection state.
- the timing duration of the first timer and/or the timing duration of the second timer are configured by a network side device or by a protocol; the first The timer and/or the second timer are based on a terminal configuration or based on a bearer configuration of the terminal.
- the first timer and the second timer are configured in a flexible manner, and have good compatibility and scalability.
- the layer two PDU includes a packet data convergence protocol PDCP layer PDU, a radio link layer control protocol RLC layer PDU, or a MAC layer PDU through a medium access control.
- the Layer 2 PDU includes diverse content, and has better compatibility and scalability.
- the indication field used to carry the first information, the second information, the fourth information, or the fifth information may be located in the layer two PDU
- the header may be located at the end of the layer 2 PDU, and may also be located at any position of the layer 2 PDU.
- the indication field may be a new field in the PDU, or may include a special value in the PDU. Existing field.
- the indication field is located at the head or the tail of the layer 2 PDU, so that the first device can quickly and efficiently obtain the information carried by the indication field, thereby improving the first device to determine that the requirement is in the The efficiency of the connection state.
- a communication method includes: starting a timer; if the timer expires, converting a connection state between the first device and the second device by a first connection state Is the second connection state.
- the first device or the second device is capable of converting the first connection state to the second connection state based on a timer, which is easy to control, has better compatibility, and has scalability.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the first device and the second device includes a first connection state or a second connection state, where the first connection state is when the terminal device is in an active state, the terminal device And a connection state between the network device and the network device; the second connection state is a connection state between the terminal device and the network device when the terminal device is in an inactive state.
- the RRC high-level signaling indicates that the terminal device enters the inactive state from the active state to the inactive state, and the solution does not need additional signaling indication, which can save signaling overhead and reduce power consumption.
- the starting a timer includes: starting the timer after the first device sends a data packet or signaling to the second device; or at the first After the device receives the data packet or the first information of the signaling sent by the second device, the timer is started, where the first information is used to indicate that the second device correctly receives the data packet Or the signaling.
- the first device or the second device can perform the conversion of the connection state based on the timer, which can save signaling overhead and reduce power consumption of the first device.
- the starting a timer includes: starting the timer after the second device receives the data packet or signaling sent by the first device; or in the second device After the data packet or the second information corresponding to the signaling is sent to the first device, the timer is started, where the second information is used to indicate that the first device correctly receives the data packet or The signaling; or starting the timer after the establishment of the radio bearer between the first device and the second device is completed.
- the first device or the second device can perform the conversion of the connection state based on the timer, which can save signaling overhead and reduce power consumption of the second device.
- all the radio bearers between the first device and the second device correspond to a single timer, and the radio bearer between the first device and the second device is established.
- starting the timer includes: starting the timer after all radio bearers are established between the first device and the second device.
- each radio bearer in the radio bearer between the first device and the second device corresponds to a timer, where the first device and the second device are After the establishment of the radio bearer is started, the timer is started, including: after each radio bearer is established between the first device and the second device, starting a corresponding timer; if the timer is set Timeout, the connection state between the first device and the second device is switched from the first connection state to the second connection state, including: if all the timers corresponding to all the radio bearers are timed out, The connection state between the first device and the second device is switched from the first connection state to the second connection state.
- each radio bearer corresponds to a timer, so that the timer can control each radio bearer in a targeted manner with high flexibility and good compatibility.
- a communication device for performing the method of the first aspect or any possible implementation of the first aspect.
- the communication device comprises modules and/or units for performing the method of the first aspect or any of the possible implementations of the first aspect.
- a communication device for performing the method of any of the second aspect or the second aspect.
- the communication device comprises means and/or means for performing the method of any of the possible implementations of the second aspect or the second aspect.
- a communication apparatus for performing the method of any of the possible implementations of the third aspect or the third aspect.
- the communication device comprises means and/or means for performing the method of any of the third or third aspects of the possible implementation.
- a communication device comprising a transceiver, a memory, a processor, and a bus system.
- the transceiver, the memory and the processor are connected by a bus system
- the memory is for storing instructions
- the processor is for executing instructions stored by the memory to control the transceiver to send and receive signals
- the processor executes the instructions stored in the memory, the processor is Performing the method of the first aspect or any possible implementation of the first aspect.
- a communication device including a transceiver, a memory, a processor, and a bus system.
- the transceiver, the memory and the processor are connected by a bus system
- the memory is for storing instructions
- the processor is for executing instructions stored by the memory to control the transceiver to send and receive signals
- the processor executes the instructions stored in the memory, the processor is Performing the method of the second aspect or any possible implementation of the second aspect.
- a communication device including a transceiver, a memory, and a processing And bus system.
- the transceiver, the memory and the processor are connected by a bus system
- the memory is for storing instructions
- the processor is for executing instructions stored by the memory to control the transceiver to send and receive signals
- the processor executes the instructions stored in the memory, the processor is The method of any of the third aspect or any of the possible implementations of the third aspect is performed.
- a computer readable medium for storing a computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.
- a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the second aspect or any of the possible implementations of the second aspect.
- a computer readable medium for storing a computer program comprising instructions for performing the method of any of the third aspect or any of the possible implementations of the third aspect.
- FIG. 1 is a schematic flowchart of a communication method according to an embodiment of the present invention.
- FIG. 2 is a schematic diagram of a layer two PDU according to an embodiment of the invention.
- FIG. 3 is a schematic diagram of a layer two PDU according to another embodiment of the present invention.
- FIG. 4 is a schematic diagram of a layer two PDU according to still another embodiment of the present invention.
- FIG. 5 is a schematic flowchart of a communication method according to another embodiment of the present invention.
- FIG. 6 is an interaction flow diagram of a communication method in accordance with an implementation of the present invention.
- FIG. 7 is a schematic flowchart of a communication method according to still another embodiment of the present invention.
- FIG. 8 is a schematic block diagram of a communication device in accordance with an embodiment of the present invention.
- FIG. 9 is a schematic block diagram of a communication device in accordance with another embodiment of the present invention.
- Figure 10 is a schematic block diagram of a communication device in accordance with still another embodiment of the present invention.
- FIG. 11 is a schematic block diagram of a communication device in accordance with an embodiment of the present invention.
- Figure 12 is a schematic block diagram of a communication device in accordance with yet another embodiment of the present invention.
- FIG. 13 is a schematic block diagram of a communication device in accordance with another embodiment of the present invention.
- a terminal device may also be called an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user.
- Agent or user device may be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), and a wireless communication.
- the network side device can be used to communicate with the mobile device, and the network side can be a Global System of Mobile communication (GSM) or a Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA). It can also be a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an Evolutionary Node B (eNB) in Long Term Evolution (LTE). eNodeB), or a relay station or access point, or an in-vehicle device, a wearable device, and an access network device in a future 5G network.
- GSM Global System of Mobile communication
- BTS Base Transceiver Station
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- eNB Evolutionary Node B
- LTE Long Term Evolution
- eNodeB or a relay station or access point, or an in-vehicle device, a wearable device, and an access network device in a future 5G network.
- connection status between the terminal device and the network side device includes at least the following:
- the idle mode has only one idle (Idle) state. In the Idle state, all connections of the terminal device are closed at the access layer.
- the UTRAN does not establish a context for the terminal device in the idle mode. If a specific terminal device is to be addressed, the paging message can only be sent to all terminal devices or to a plurality of terminal devices listening to the same paging period in one cell.
- the connection status between the terminal device and the network side device when the terminal device is in the active state includes a state in which the terminal device is in a connection mode of a high-level signaling connection.
- connection status between the terminal device and the network side device when the terminal device is in an inactive state When the terminal device is in the inactive state, the RRC connection and the bearer of the terminal device are reserved in the network side device, but the behavior of the terminal device in the access layer is not notified to the network side device.
- FIG. 1 is a schematic flow chart of a communication method 100 in accordance with an embodiment of the present invention.
- the communication method 100 can include:
- the first device receives a layer 2 protocol data unit (PDU) sent by the second device.
- PDU protocol data unit
- the first device determines, according to the layer two PDU, a connection state that needs to be in between the first device and the second device.
- the connection status between the first device and the second device may include multiple types, and the first device may determine, according to the layer two PDU, a connection state that needs to be in.
- the layer 2 PDU may include a Packet Data Convergence Protocol (PDCP) layer PDU, a Radio Link Control (RLC) layer PDU, or a medium access control ( Media Access Control, MAC) layer PDU.
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- MAC medium access control
- the process of the first device parsing the layer 2 PDU is relatively simple, and the communication complexity is reduced, the system overhead is reduced, and the parsing delay is shortened, as compared with the RRC high layer signaling sent by the network device in the prior art.
- two of the first device and the second device are network side devices; or two of the first device and the second device are terminal devices; or one of the first device and the second device
- the network device is a network device
- the first device is a network device.
- the second device is a terminal device; the connection state that needs to be in between the first device and the second device includes a first connection state or a second connection state, where the first connection state is that the terminal device is activated a connection state between the terminal device and the network side device; the second connection state is a connection between the terminal device and the network side device when the terminal device is in an inactive state status.
- the communication method 100 can determine the connection state that needs to be in between various communication devices, has high flexibility, and has good compatibility and scalability.
- the execution subject may be a terminal device or a network side device, and can The terminal device or the network side device determines the connection state that needs to be in accordance with the Layer 2 PDU in time, so that the terminal device or the network side device can efficiently convert the connection state if the connection state needs to be converted.
- the first device can determine, according to the layer two PDU, the connection state that needs to be entered between the first device and the second device, With reference to several specific implementation manners, how the first device determines the connection mode that needs to be entered according to the layer two PDU is described in detail.
- the first device may determine, according to whether the layer two PDU carries a data packet or according to the first information carried in the layer two PDU, the first device and the second device.
- the first device determines, according to the first information carried in the layer 2 PDU, the connection state that needs to be in the first device and the second device, and may include:
- the first device determines that the first device and the second device need to be in the first a connection state; when the first information is used to indicate that there is no subsequent data transmission between the first device and the second device, the first device determines that the first device and the second device It needs to be in the second connection state.
- the layer 2 PDU is an RLC PDU
- a header of the RLC PDU includes an L field for carrying the first information (the L field may be referred to as an indication field), where the indication field is
- the indication field is The values and meanings can be as shown in Table 1.
- the first device After the first device receives the PDU carrying the first information, if the value of the indication field carrying the first information is “0”, the first device determines the first according to the first information. The device and the second device need to be in a second connection state; if the value of the indication field that carries the first information is “1”, the first device determines, according to the first information, the first A device and the second device need to be in a first connection state.
- FIG. 3 is a schematic diagram of a layer two PDU according to another embodiment of the present invention. As shown in FIG.
- the layer 2 PDU is a PDCP PDU
- a header of the PDCP PDU includes an L field for carrying the first information (the L field may be referred to as an indication field), where the indication field is
- the indication field is The values and meanings can be as shown in Table 2.
- the first information and the data packet may be jointly carried in the layer two PDU, and the first information is transmitted to the first information while transmitting the data packet without additional signaling indication.
- the device can save signaling overhead and save power consumption of the first device.
- the layer two PDU includes a special field or a field including a special value.
- the first device determines the connection between the first device and the second device, regardless of the value of the special field or the special value in the field.
- the status is the second connection status.
- the special field may include an indication field.
- the connection state that needs to be in between the first device and the second device is the second connection state.
- connection states between the first device and the second device there are multiple connection states between the first device and the second device, and each connection state corresponds to a special field, and the first device can according to the special field (or special field) included in the layer 2 PDU.
- Position determines the connection state that needs to be entered between the first device and the second device.
- the first connection state corresponds to the special field J
- the second connection state corresponds to the special field L
- the third connection state corresponds to the special field T.
- the first device may determine the The connection state that needs to be entered between the first device and the second device is the third connection state, and the implementation manner of the solution is flexible.
- the first device determines, according to whether the layer 2 PDU carries a data packet, the connection state that needs to be in the first device and the second device, and may include:
- the first device determines that the first device and the second device need to be in a first connection state; when the layer two PDU does not carry a data packet, Determining that the first device needs to be in a second connection between the first device and the second device state.
- whether the layer 2 PDU carries a data packet may be used as an indication.
- the layer 2 PDU is a state packet (or a null packet)
- the layer 2 PDU carries the second information, where the second information is used to indicate a connection state that needs to be in between the first device and the second device, where the first device is configured according to Determining, by the layer 2 PDU, a connection state that needs to be in the first device and the second device, the first device determining, according to the second information carried in the layer two PDU, The connection state between the second device and the second device is required.
- the layer 2 PDU received by the first device carries the second information directly used to indicate the connection state that needs to be in between the first device and the second device, and the first device receives the second information.
- the connection state between the first device and the second device may be directly determined (or learned), and the first device may be configured to determine the connection state that needs to be in the connection state. And increasing the efficiency of the first device to determine the connection state that the user needs to be in.
- the first device determines the connection state that needs to be in accordance with the layer two PDU.
- the first device needs to perform a connection state transition if the connection state that needs to be in the connection state and the connection state that the first device and the second device are currently in are different.
- the detailed description of how the first device performs the connection state transition is different.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection state;
- the communication method 100 may further include: the first device starts a first timer after receiving the layer two PDU; or the first device starts after sending the third information to the second device The first timer, wherein the third information is used to indicate that the first device determines to enter the second connection state (or the third information is used to indicate that the first device correctly receives the layer two PDU); if the first timer expires, the first device converts the connection state from the first connection state to the second connection state.
- the third information may be ACK information.
- the first timer of the first device is used to control the transition of the connection state of the first device. If the layer 2 PDU does not need to be acknowledged, after the first device receives the layer 2 PDU, The first timer is started, which can save signaling overhead and save power consumption of the first device. If the layer 2 PDU needs to be acknowledged, the first device starts the first after sending the third information.
- the timer can enable the second device to know the situation of the first device in time, so that the second device can convert the connection state in time.
- the first device may obtain the timing duration of the first timer based on the protocol convention or based on other manners, which will be described in detail later.
- the first device and the second device are currently in a first connection state, and the connection state that needs to be in the first device and the second device is a first connection state, where The first device maintains the first connection state.
- the layer 2 PDU carries the fourth information, where the fourth information is used to indicate the timing duration of the first timer, and the starting the first timer may include: according to the foregoing Four information, the first timer is started.
- the first device can obtain the timing duration of the first timer.
- 4 is a schematic diagram of a layer two PDU according to still another embodiment of the present invention.
- the MAC control element is translated as a MAC Control Element.
- the layer 2 PDU is a MAC PDU
- the tail of the MAC PDU includes an indication field for carrying the third information.
- the value of the indication field and its meaning can be as shown in Table 3.
- T value meaning 00 T1 01 T2 10 T3 11 T4
- the first device may start the first timer according to the fourth information carried by the layer 2 PDU, so that the first device sends the first device after a certain timing according to the indication of the second device.
- the connection state with the second device is switched from the first connection state to the second connection state.
- the layer 2 PDU carries a fifth information, where the fifth information is used to request to acquire a timing duration of the second timer of the second device.
- the communications method 100 further includes: the first The device determines a timing duration of the second timer; the first device sends sixth information to the second device, where the sixth information is used to indicate a timing duration of the second timer; a timer, including: the first device is sending the sixth information to the second device After the first device is started, after the first device sends the sixth information to the second device, and after receiving the seventh information sent by the second device, the first device is started. a timer, wherein the seventh information is used to instruct the second device to determine to enter the second connection state.
- the first device can learn that the second device requests to connect the connection state between the first device and the second device by using the first connection state. Converting to the second connection state, the first device can determine that the first device and the second device need to be in the second connection state according to the layer two PDU carrying the fifth information, so that the first device can start The first timer is described.
- the first device may start the first timer according to the sixth information.
- the first device may start the first timer based on the timing duration configured to the second timer, so that the first device and the second device and the second device can simultaneously switch from the first connection state to the second connection state. .
- the sixth information does not need to be acknowledged, after the first device receives the layer 2 PDU, and the first device sends the sixth information to the second device, The first timer is started; if the sixth information needs to be confirmed, the first device sends the sixth information after sending the sixth information to the second device, and receives the seventh information sent by the second device. Thereafter, the first timer is started.
- the third information and the sixth information may be different information, and may be the same information (or information carried in the same field).
- the sixth information may be used not only to indicate the timing duration of the second timer, but also to indicate that the first device determines to enter the second connection state.
- the first device may be agreed by the first device and the second device in advance. If the information received or sent by the first device does not need to be acknowledged, multiple transmissions of the information may be used to ensure correct reception of the data or signaling.
- the second device may send multiple Layer 2 PDUs to the first device, so that the first device can correctly receive the Layer 2 PDU. In this case, the first device does not need to send the third information to the second device.
- the first device After receiving the layer 2 PDU, the first device starts the first timer, and the corresponding second device starts the second timer after sending the multiple layer 2 PDUs. If the information received or sent by the first device needs to be confirmed, the first device needs to send or receive corresponding confirmation information (for example, the third information or the sixth information) to start the first timer.
- the communications method 100 further includes: the first device sending the eighth information to the second device, The eighth information is used to indicate that the first device correctly receives the layer two PDU; and/or the first device sends ninth information to the second device, where the ninth information is used to indicate the The connection state between the first device and the second device is required.
- the first device sends the eighth information to the second device, which can prevent the second device from repeatedly transmitting the layer 2 PDU, and save signaling overhead; the first device sends the second device to the second device.
- the ninth information is capable of timely notifying the connection state that the second device needs to be in, so that the second device can perform the conversion of the connection state in time, thereby saving power consumption of the second device.
- the first device may send the ninth information to the second device by using a high layer signaling, a PDU, or a physical layer signaling procedure.
- the indication field used to carry the first information, the second information, the fourth information, or the fifth information may be located at a head of the layer 2 PDU, or may be located
- the tail of the Layer 2 PDU may also be located at any position of the Layer 2 PDU (in other words, the indication field may be a header field or a suffix field of the Layer 2 PDU).
- the indication field may be a new field in the PDU, or may be an existing field in the PDU that contains a special value, which is not limited herein.
- the first device can quickly obtain the foregoing information after receiving the layer 2 PDU, so that the first device can quickly and efficiently determine the first device and the device.
- the connection state that needs to be entered between the second devices.
- the first timer is configured with at least one first timing duration, where the at least one first timing duration includes a timing duration of the first timer indicated by the fourth information;
- the second timer is configured with at least one second timing duration, and the at least one second timing duration includes a timing duration of the second timer indicated by the sixth information.
- the timing duration of the first timer and/or the timing duration of the second timer may be configured by a network side device or by a protocol; the timing duration of the first timer is / or the timing duration of the second timer is based on a terminal configuration or based on a bearer configuration of the terminal. The timing of the timer is described in detail based on the bearer configuration of the terminal.
- FIG. 5 is a schematic flowchart of a communication method according to another embodiment of the present invention. As shown in FIG. 5, the communication method 200 may include:
- the second device generates a Layer 2 PDU, where the Layer 2 PDU is used by the first communications device. Determining a connection state that needs to be between the first device and the second device;
- the second device sends the layer two PDU to the first device.
- the layer 2 PDU generated by the second device can be used by the first device to determine the connection state that the device needs to be in, and the process for the second device to send the layer 2 PDU is relatively simple, and the communication complexity can be reduced. Reduce system overhead and reduce latency.
- the entity is diversified, and the second device is the terminal device or the network device, and the layer 2 PDU can be sent to the first device, so that the first device can determine the connection that needs to be in time. status.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the device and the second device includes a first connection state or a second connection state, wherein the first connection state is when the terminal device is in an active state, the terminal device and the a connection state between the network side devices; the second connection state is a connection state between the terminal device and the network side device when the terminal device is in an inactive state.
- the second device generates a layer 2 PDU, including: the second device, according to whether there is currently a data packet transmission between the first device and the second device, and/or the first device and the second device. Whether there is subsequent data transmission between the layers, the layer 2 PDU is generated.
- the second device may generate the layer 2 PDU according to the transmission status between the first device and the second device, so that the first device can determine, according to the layer 2 PDU, the required to be in time and accurately. Connection Status.
- the second device generates the layer according to whether there is currently data packet transmission between the first device and the second device, and/or whether there is subsequent data transmission between the first device and the second device.
- the second PDU may include: when the data packet is currently transmitted between the first device and the second device, the second device generates the layer two PDU that carries the data packet; When there is no data packet transmission between the device and the second device, the second device generates the layer 2 PDU that does not carry the data packet; there is no data subsequently between the first device and the second device.
- the second device And transmitting, by the second device, the layer 2 PDU carrying first information indicating that there is no subsequent data transmission between the first device and the second device; in the first device and the When there is data transmission between the second device, the second device generates the layer 2 PDU carrying first information for indicating subsequent data transmission between the first device and the second device.
- the communications method further includes: determining, by the second device, a connection state that needs to be in between the first device and the second device;
- the PDU includes: the second device generates the layer 2 PDU carrying second information indicating a connection state that needs to be in between the first device and the second device.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection state;
- the communication method further includes: after the second device sends the layer two PDU, starting a second timer; or the second device starts the second after receiving the third information sent by the first device a timer, wherein the third information is used to indicate that the first device determines to enter the second connection state; if the second timer expires, the second device uses the connection state by the first A connection state is converted to the second connection state.
- the second device generates the layer 2 PDU that carries fourth information indicating a timing duration of the first timer of the first device, where the first device is configured according to the first device.
- the fourth information starts the first timer.
- the second device may start the second timer according to the fourth information.
- the second device may start the second timer based on the timing duration configured to the first timer, so that the first device and the second device and the second device can simultaneously switch from the first connection state to the second connection state. .
- the layer 2 PDU carries the fifth information
- the second device generates the layer 2 PDU, where the second device generates the time duration for requesting to acquire the second timer.
- the layer 2 PDU of the fifth information; the communication method further includes: the second device receives the sixth information sent by the first device, and the sixth information is used to indicate the timing of the second timer
- the second timer includes: after receiving the sixth information sent by the first device, the second device starts the second timer according to the sixth information; or the After receiving the sixth information sent by the first device, and sending the seventh information to the first device, the second device starts the second timer according to the sixth information, where the seventh The information is used to indicate that the second device determines to enter the second connection state.
- the communications method further includes: the second device receiving the eighth Information, the eighth information is used to indicate that the first device correctly receives the layer two PDU; or the second device receives the ninth information sent by the first device, where the ninth information is used to indicate The connection state between the first device and the second device is required.
- the second device in the communication method 200 may correspond to the foregoing communication method.
- the second device in 100, the first device in the communication method 200 may be the first device in the communication method 100, the layer 2 PDU, the first timer, the second timer, and the layer in the communication method 200
- the various information carried in the PDU refer to the related description in the communication method 100.
- the present invention is not described herein again.
- FIG. 6 is an interaction flow diagram of a communication method in accordance with an implementation of the present invention.
- the description of each term in the embodiments of the present invention is the same as the foregoing various embodiments.
- the second device generates the layer two PDU.
- the second device sends the layer two PDU to the first device.
- the first device determines, according to the layer 2 PDU, a connection state that needs to be in between the first device and the second device.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device needs to be in the first connection state, The first device maintains the first connection state;
- the layer is The second PDU does not need to be acknowledged. After performing S330, perform 340 and 350. If the layer 2 PDU needs to be confirmed, perform S330 and execute 360, 370 and 380;
- the first device starts the first timer after receiving the layer two PDUs.
- the second device After the second device sends the layer 2 PDU, the second device starts a second timer.
- the first device sends the third information to the second device.
- the second device After receiving the third information sent by the first device, the second device starts a second timer.
- the moment when the first device and the second device start the corresponding timer may be agreed according to the protocol.
- the first device and the second device may agree that the layer two PDUs need not be acknowledged and
- the layer 2 PDU is used to trigger a timer, and after the second device sends the layer 2 PDU, the second timer is started, and the first device starts the first timer after receiving the layer 2 PDU.
- the content of the layer 2 PDU is not considered, and the corresponding timer is started.
- the first device and the second device can agree to start the timer without confirming the layer two PDU and determining that the connection state transition occurs.
- the second device may determine that the connection state needs to be converted before sending the layer two PDU, so that after sending the layer two PDU, the second timer is started; the first device receives the layer two PDU. Then, according to the layer 2 PDU, it is determined that the connection state needs to be converted, so that after receiving the layer two PDU, the first timer is started.
- the first device and the second device may agree that the layer 2 PDU is required for confirmation, and the first device starts the first timer after sending the third information, where the second device is After receiving the third information, the second timer is started.
- the first device starts the first timer
- the second device starts the second timer
- the second device starts the second timer
- the first device and the second device may obtain the timing duration based on the protocol agreement or based on other methods.
- FIG. 7 is a schematic flowchart of a communication method according to still another embodiment.
- the execution body of the communication method may be a first device or a second device.
- the communication method 400 may include:
- connection state between the first device and the second device is changed from the first connection state to the second connection state.
- the first device or the second device can convert the first connection state to the second connection state based on a timer, and can save signaling overhead without complicated signaling, and has better compatibility and Scalability.
- the execution body of the communication method 400 is the first device, the first device starts the timer of the first device (ie, the first timer); if the execution entity of the solution is the second device, the second device The timer of the second device (ie, the second timer) is started.
- First device or second device For related descriptions of the timers and the start timers, refer to related descriptions in the embodiments of the present invention, and details are not described herein.
- the connection state that needs to be in between the first device and the second device includes a first connection state or a second connection state, where the first connection state is that the terminal device is activated. a connection state between the terminal device and the network side device; the second connection state is a connection between the terminal device and the network side device when the terminal device is in an inactive state status.
- the starting timer includes: starting the timer after the first device sends a data packet or signaling to the second device; or receiving, at the first device After the data packet sent by the second device or the first information of the signaling, the timer is started, where the first information is used to indicate that the second device correctly receives the data packet or the Signaling.
- the executor of the solution may be a first device, and after the radio bearer setup between the first device and the second device is completed, the timer is started.
- the starting timer includes: after the second device receives the data packet or signaling sent by the second device, starting the timer; or at the first device After the second device sends the data packet or the second information corresponding to the signaling, the timer is started, where the second information is used to indicate that the first device correctly receives the data packet or the Decoding; or starting a timer after the first device establishes radio bearer between the first device and the second device.
- the execution body of the solution may be a second device.
- all radio bearers between the first device and the second device correspond to a single timer, where the first device is between the first device and the second device.
- the timer is started, including:
- the timer is started after all radio bearers are established between the first device and the second device.
- each radio bearer in the radio bearer between the first device and the second device corresponds to a timer, where the first device is connected to the second device.
- the timer is started, including: after each radio bearer is established between the first device and the second device, starting a corresponding timer; if the time set by the timer expires The switching the connection state between the first device and the second device from the first connection state to the second connection state, including: if all timers corresponding to all the radio bearers are timed out, The connection state between the first device and the second device is cut by the first connection state Change to the second connection state.
- the eight radio bearers correspond to eight timers; after each radio bearer is established, the corresponding timer is started.
- the timers corresponding to all radio bearers in the eight radio bearers are timed out, and the first device and the second device convert the connection state between the first device and the second device from the first connection state to The second connection state.
- FIG. 8 is a schematic block diagram of a communication device 500 in accordance with an embodiment of the present invention.
- a communication device 500 is a first device, and the communication device 500 includes:
- the receiving module 510 is configured to receive a layer 2 protocol data unit PDU sent by the second device;
- the determining module 520 is configured to determine, according to the layer two PDU, a connection state that needs to be between the first device and the second device.
- the process of parsing the layer 2 PDU by the communication device is relatively simple, can reduce communication complexity, reduce system overhead, and shorten parsing delay; further, the solution can be applied to determine connection state between various communication devices, and is flexible. Highly versatile, with good compatibility and scalability; further, the implementation of the program is diversified, whether the communication device is a terminal device or a network-side device, and the connection state can be timely when the connection state needs to be converted. Conversion.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the device and the second device includes a first connection state or a second connection state, wherein the first connection state is when the terminal device is in an active state, the terminal device and the The connection status between the network side devices; the second connection status is a connection status between the terminal device and the network side device when the terminal device is in an inactive state.
- the determining module 520 is specifically configured to determine, according to whether the layer two PDU carries a data packet or according to the first information carried in the layer two PDU, to determine the first device and the A connection state that needs to be in between the second devices, wherein the first information is used to indicate whether there is subsequent data transmission between the first device and the second device.
- the determining module 520 is specifically configured to: use, in the first information, Determining that the first device and the second device need to be in a first connection state when the data transmission is performed between the first device and the second device; the first information is used to indicate When there is no data transmission between the first device and the second device, it is determined that the first device and the second device need to be in the second connection state.
- the determining module 520 is specifically configured to: when the layer 2 PDU carries a data packet, determine that the first device and the second device need to be in a first connection state; When the Layer 2 PDU does not carry the data packet, it is determined that the first device and the second device need to be in the second connection state.
- the layer 2 PDU carries the second information, where the second information is used to indicate a connection state that needs to be in between the first device and the second device, where the determining module 520 is specific. And configured to determine, according to the second information carried in the layer two PDU, a connection state that needs to be in between the second device and the second device.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection state;
- the communication device 500 further includes: a processing module, configured to: after the receiving module 510 receives the layer two PDU, start a first timer; or the communication device 500 further includes a sending module, Transmitting the third information to the second device; the processing module is configured to: after the third module sends the third information, start the first timer, where the third information is used to indicate the first The device determines to enter the second connection state; the processing module is further configured to: when the first timer expires, convert the connection state from the first connection state to the second connection state.
- the layer 2 PDU carries the fourth information, where the fourth information is used to indicate the timing duration of the first timer, and the processing module is specifically configured to: according to the fourth information, The first timer is started.
- the layer 2 PDU carries a fifth information, where the fifth information is used to request to acquire a timing duration of the second timer of the second device, and the determining module 520 is further configured to determine the a timing of the second timer; the sending module is further configured to send the sixth information to the second device, where the sixth information is used to indicate a timing duration of the second timer; After the sending module sends the sixth information to the second device, start the first timer; or after the sending module sends the sixth information to the second device, After receiving the seventh information sent by the second device, the receiving module 510 starts the first setting And the seventh information is used to indicate that the second device determines to enter the second connection state.
- the communication device further includes: a sending module, where the sending module is configured to: send, to the second device, eighth information, where the eighth information is used to indicate that the first device correctly receives the Layer 2 PDU; and/or sending ninth information to the second device, where the ninth information is used to indicate a connection state that needs to be between the first device and the second device.
- a sending module configured to: send, to the second device, eighth information, where the eighth information is used to indicate that the first device correctly receives the Layer 2 PDU; and/or sending ninth information to the second device, where the ninth information is used to indicate a connection state that needs to be between the first device and the second device.
- the communication device 500 can be applied to the first device in the communication method according to the embodiment of the present invention, and each module in the communication device 500 and the other operations or functions described above are respectively implemented to implement FIG. 1 to FIG. 6 .
- the corresponding processes performed by the first device in the respective embodiments are not described herein for the sake of brevity.
- FIG. 9 is a schematic block diagram of a communication device 600 in accordance with yet another embodiment of the present invention. As shown in FIG. 9, a communication device 600, the communication device 600 can include:
- a generating module 610 configured to generate a layer two protocol data unit PDU, where the layer two PDU is used by the first communications device to determine a connection state that needs to be between the first device and the second device;
- the sending module 620 is configured to send the layer two PDU to the first device.
- the process of transmitting the Layer 2 PDU by the communication device is relatively simple, which can reduce communication complexity, reduce system overhead, and shorten delay.
- the execution entity is diversified, and the communication device is a terminal device or a network side device, and the Layer 2 PDU can be sent to the first device, so that the first device can determine the connection that needs to be in time. status.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the device and the second device includes a first connection state or a second connection state, wherein the first connection state is when the terminal device is in an active state, the terminal device and the a connection state between the network side devices; the second connection state is a connection state between the terminal device and the network side device when the terminal device is in an inactive state.
- the generating module 610 is specifically configured to: generate, according to whether there is currently a data packet transmission between the first device and the second device, and/or whether there is subsequent data transmission between the first device and the second device, Layer two PDU.
- the generating module 610 is specifically configured to: when the data packet is currently transmitted between the first device and the second device, generate the layer 2 PDU that carries the data packet; First Generating a Layer 2 PDU that does not carry a data packet when there is no data packet transmission between the device and the second device; and generating no data transmission between the first device and the second device Carrying the layer 2 PDU for indicating first information that is not subsequently transmitted between the first device and the second device; and subsequently transmitting data between the first device and the second device And generating, by the Layer 2 PDU, the first information that is used to indicate subsequent data transmission between the first device and the second device.
- the communication device 600 further includes: a determining module, where the determining module is configured to determine a connection state that needs to be in between the first device and the second device; and the generating module 610 is specifically configured to generate The layer 2 PDU carrying second information indicating a connection state between the first device and the second device.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection state;
- the communication device 600 further includes: a processing module, configured to: after the sending module 620 sends the layer two PDU, start a second timer; or the communication device further includes: a receiving module, configured to receive The third information sent by the first device, the processing module is configured to start a second timer after the receiving module receives the third information, where the third information is used to indicate the first The device determines to enter the second connection state; the processing module is further configured to: when the second timer expires, convert the connection state from the first connection state to the second connection state.
- the generating module 610 is specifically configured to generate, by using the layer 2 PDU that carries the fourth duration information of the first timer of the first device, for the first The device starts the first timer according to the fourth information.
- the generating module 610 is specifically configured to generate the layer 2 PDU that carries the fifth information for requesting to acquire the timing duration of the second timer.
- the receiving module is further configured to receive the a sixth information sent by the first device, where the sixth information is used to indicate a timing duration of the second timer;
- the processing module is specifically configured to: after the receiving module receives the sixth information, according to The sixth information starts the second timer; or after the receiving module receives the sixth information sent by the first device, and the sending module 620 sends the seventh information to the first device Then, the second timer is started according to the sixth information, where the seventh information is used to indicate that the second device determines to enter the second connection state.
- the communication device 600 includes a receiving module, and the receiving module uses Receiving: the eighth information sent by the first device, where the eighth information is used to indicate that the first device correctly receives the layer two PDU; or receives the ninth information sent by the first device, The ninth information is used to indicate a connection state that needs to be between the first device and the second device.
- the communication device 600 can be applied to the second device in the communication method according to the embodiment of the present invention, and each module in the communication device 600 and the other operations or functions described above are respectively implemented to implement FIG. 1 to FIG. 6 .
- the corresponding processes performed by the second device in the various embodiments shown are not described herein for brevity.
- FIG. 10 is a schematic block diagram of a communication device 700 in accordance with another embodiment of the present invention.
- a communication device 700 the communication device 700 can include:
- the first processing module 710 is configured to start a timer.
- the second processing module 720 is configured to: when the timer expires, convert a connection state between the first device and the second device from a first connection state to a second connection state.
- the communication device is capable of converting the first connection state to the second connection state based on the timer, which is easy to control, has good compatibility and scalability.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the device and the second device includes a first connection state or a second connection state, wherein the first connection state is when the terminal device is in an active state, the terminal device and the a connection state between the network side devices; the second connection state is a connection state between the terminal device and the network side device when the terminal device is in an inactive state.
- the first processing module 710 is specifically configured to: after the first device sends a data packet or signaling to the second device, start the timer; or in the first After the device receives the data packet or the first information of the signaling sent by the second device, the timer is started, where the first information is used to indicate that the second device correctly receives the data packet Or the signaling.
- the first processing module 710 is specifically configured to: after the second device receives the data packet or signaling sent by the first device, start the timer; or in the second device After the data packet or the second information corresponding to the signaling is sent to the first device, the timer is started, where the second information is used to indicate that the first device correctly receives the data packet or The signaling; or starting the timer after the establishment of the radio bearer between the first device and the second device is completed.
- all radio bearers between the first device and the second device correspond to a single timer
- the first processing module 710 is specifically configured to be used in the first device and the second device.
- the timer is started after all radio bearers have been established.
- each radio bearer in the radio bearer between the first device and the second device corresponds to a timer
- the first processing module 710 is specifically configured to: in the first device After the completion of the establishment of each radio bearer with the second device, the corresponding timer is started; the second processing module 720 is specifically configured to: if all the timers corresponding to all the radio bearers are timed out, the The connection state between the first device and the second device is switched from the first connection state to the second connection state.
- the communication device 700 can be applied to the execution body in the communication method 400 according to the embodiment of the present invention, and each module in the communication device 700 and the other operations or functions described above are respectively implemented to implement the various modes shown in FIG.
- the corresponding processes performed by the communication method 400 in the embodiment are not described herein for the sake of brevity.
- the communication device 800 includes a transceiver 810, a memory 820, a processor 830, and a bus system 840.
- the transceiver 810, the memory 820, and the processor 830 are connected by a bus system 840.
- the memory 820 is used to store instructions
- the processor 830 is configured to execute instructions stored in the memory 820 to control the transceiver 810 to send and receive signals.
- the transceiver 810 is configured to receive a layer 2 protocol data unit PDU sent by the second device;
- the processor 830 is configured to determine, according to the layer two PDU, a connection state that needs to be between the first device and the second device.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the device and the second device includes a first connection state or a second connection state, wherein the first connection state is when the terminal device is in an active state, the terminal device and the The connection status between the network side devices; the second connection status is a connection status between the terminal device and the network side device when the terminal device is in an inactive state.
- the processor 830 is specifically configured to: determine, according to whether the layer two PDU carries a data packet, or according to the first information carried in the layer two PDU, the first device and the A connection state that needs to be in between the second devices, wherein the first information is used to indicate whether there is subsequent data transmission between the first device and the second device.
- the processor 830 is specifically configured to: when the first information is used to indicate subsequent data transmission between the first device and the second device, determine the first device And the second device needs to be in a first connection state; when the first information is used to indicate that there is no subsequent data transmission between the first device and the second device, determining the first device and The second device needs to be in a second connection state.
- the processor 830 is specifically configured to: when the layer 2 PDU carries a data packet, determine that the first device and the second device need to be in a first connection state; When the Layer 2 PDU does not carry the data packet, it is determined that the first device and the second device need to be in the second connection state.
- the layer 2 PDU carries the second information, where the second information is used to indicate a connection state that needs to be in between the first device and the second device, where the processor 830 is specific. And configured to determine, according to the second information carried in the layer two PDU, a connection state that needs to be in between the second device and the second device.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection state;
- the processor 830 is further configured to: after the transceiver 810 receives the layer 2 PDU, start a first timer; or the transceiver 810 is further configured to send the third information to the second device, where The processor 830 is further configured to: after the transceiver 810 sends the third information, start the first timer, where the third information is used to indicate that the first device determines to enter the second connection state
- the processor 830 is further configured to: when the first timer expires, convert the connection state from the first connection state to the second connection state.
- the layer 2 PDU carries fourth information, where the fourth information is used to indicate a timing duration of the first timer, and the processor 830 is specifically configured to: according to the fourth information , starting the first timer.
- the layer 2 PDU carries a fifth information, where the fifth information is used to request to acquire a timing duration of the second timer of the second device, and the processor 830 is further configured to: determine the a timing duration of the second timer; the transceiver 810 is further configured to send sixth information to the second device, where the sixth information is used to indicate a timing duration of the second timer; the processor 830 Specifically, after the transceiver 810 sends the sixth information to the second device, start the first timer; or send the sixth device to the second device at the transceiver 810. After the information, and the transceiver 810 receives the seventh information sent by the second device, start the first a timer, wherein the seventh information is used to instruct the second device to determine to enter the second connection state.
- the transceiver 810 is further configured to: send, to the second device, eighth information, where the eighth information is used to indicate that the first device correctly receives the layer two PDU; and/or The second device sends a ninth information, where the ninth information is used to indicate a connection state that needs to be in between the first device and the second device.
- the communication device 800 can be applied to the first device in the communication method according to the embodiment of the present invention, and each module in the communication device 800 and the other operations or functions described above are respectively implemented in FIG. 1 and FIG. The corresponding processes performed by the first device in the respective embodiments are not described herein for the sake of brevity.
- FIG. 12 is a schematic block diagram of a communication device 900 in accordance with yet another embodiment of the present invention.
- the communication device 900 includes a transceiver 910, a memory 920, a processor 930, and a bus system 940.
- the transceiver 910, the memory 920 and the processor 930 are connected by a bus system 940.
- the memory 920 is used to store instructions
- the processor 930 is configured to execute instructions stored in the memory 920 to control the transceiver 910 to send and receive signals.
- the processor 930 is configured to: generate a layer two protocol data unit PDU, where the layer two PDU is used by the first communications device to determine a connection state that needs to be between the first device and the second device; The first device sends the layer two PDU.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the device and the second device includes a first connection state or a second connection state, wherein the first connection state is when the terminal device is in an active state, the terminal device and the a connection state between the network side devices; the second connection state is a connection state between the terminal device and the network side device when the terminal device is in an inactive state.
- the processor 930 is specifically configured to: according to whether there is currently a data packet transmission between the first device and the second device, and/or whether there is subsequent data transmission between the first device and the second device, The layer two PDU is generated.
- the processor 930 is configured to: when the data packet is currently transmitted between the first device and the second device, generate the layer 2 PDU that carries the data packet; Generating the layer 2 PDU that does not carry the data packet when there is no data packet transmission between the first device and the second device; there is no data subsequently between the first device and the second device Pass Transmitting, the layer 2 PDU carrying first information indicating that there is no subsequent data transmission between the first device and the second device; between the first device and the second device When there is data transmission, the layer 2 PDU carrying the first information indicating the subsequent data transmission between the first device and the second device is generated.
- the processor 930 is further configured to: determine a connection state that needs to be in between the first device and the second device, where the processor 930 is specifically configured to: generate a bearer for indication The layer 2 PDU of the second information of the connection state between the first device and the second device is required.
- the first device and the second device are currently in a first connection state, and the connection state between the first device and the second device is a second connection state;
- the processor 930 is further configured to: after the transceiver 910 sends the layer 2 PDU, start a second timer; or after the transceiver 910 receives the third information sent by the first device, start the first a second timer, wherein the third information is used to indicate that the first device determines to enter the second connection state; if the second timer expires, the connection state is converted by the first connection state Is the second connection state.
- the processor 930 is specifically configured to generate, by using the layer 2 PDU that carries the fourth duration information of the first timer of the first device, for the first The device starts the first timer according to the fourth information.
- the processor 930 is specifically configured to generate the layer 2 PDU that carries the fifth information for requesting to acquire the timing duration of the second timer.
- the transceiver 910 is further configured to: And receiving, by the first device, the sixth information, where the sixth information is used to indicate a timing duration of the second timer, and the processor 930 is specifically configured to: receive, by the transceiver 910, the first information.
- the second timer is started according to the sixth information; or after the transceiver 910 receives the sixth information sent by the first device, and the sending and receiving After transmitting the seventh information to the first device, the device 910 starts the second timer according to the sixth information, where the seventh information is used to indicate that the second device determines to enter the second connection state. .
- the transceiver 910 is further configured to: receive the eighth information sent by the first device, where the eighth information is used to indicate that the first device correctly receives the layer two PDU; or And receiving the ninth information sent by the first device, where the ninth information is used to indicate a connection state that needs to be in between the first device and the second device.
- the communication device 900 can be applied to the second device in the communication method according to the embodiment of the present invention, and each module in the communication device 900 and the other operations or functions described above are respectively implemented in FIG. 1 to FIG. 6 .
- the corresponding processes performed by the second device in the various embodiments shown are not described herein for brevity.
- FIG. 13 is a schematic block diagram of a communication device 1000 in accordance with another embodiment of the present invention.
- the communication device 1000 includes a transceiver 1010, a memory 1020, a processor 1030, and a bus system 1040.
- the transceiver 1010, the memory 1020, and the processor 1030 are connected by a bus system 1040.
- the memory 1020 is configured to store instructions
- the processor 1030 is configured to execute instructions stored in the memory 1020 to control the transceiver 1010 to send and receive signals.
- the processor 1030 is configured to: start a timer; if the timer expires, convert a connection state between the first device and the second device from a first connection state to a second connection state.
- the communication device is capable of converting the first connection state to the second connection state based on a timer, which is easy to control, has good compatibility and scalability.
- the first device is a terminal device, and the second device is a network side device; or the first device is a network side device, and the second device is a terminal device;
- the connection state that needs to be in between the device and the second device includes a first connection state or a second connection state, wherein the first connection state is when the terminal device is in an active state, the terminal device and the a connection state between the network side devices; the second connection state is a connection state between the terminal device and the network side device when the terminal device is in an inactive state.
- the processor 1030 is specifically configured to: after the first device sends a data packet or signaling to the second device, start the timer; or receive at the first device After the data packet sent by the second device or the first information of the signaling, the timer is started, where the first information is used to indicate that the second device correctly receives the data packet or the Signaling.
- the processor 1030 is specifically configured to: after the second device receives the data packet or signaling sent by the first device, start the timer; or in the second device After the first device sends the data packet or the second information corresponding to the signaling, the timer is started, where the second information is used to indicate that the first device correctly receives the data packet or the Signaling; or starting the timer after the establishment of the radio bearer between the first device and the second device is completed.
- the processor 1030 is specifically configured to start the timer after all radio bearers are established between the first device and the second device.
- each radio bearer in the radio bearer between the first device and the second device corresponds to a timer
- the processor 1030 is specifically configured to: in the first device and the After the completion of the establishment of each radio bearer between the second devices, the corresponding timer is started; if all the timers corresponding to all the radio bearers are timed out, the connection between the first device and the second device is The state is switched from the first connection state to the second connection state.
- the communication device 1000 may be applied to an execution body in the communication method 400 according to an embodiment of the present invention, and each module in the communication device 1000 and the other operations or functions described above are respectively implemented to implement the method shown in FIG.
- the corresponding processes performed by the communication method 400 in the various embodiments are not described herein for brevity.
- the processor may be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated systems.
- the circuit is used to execute the related program to implement the technical solution provided by the embodiment of the present invention.
- the transceiver enables communication between the mobile terminal device and other devices or communication networks.
- the memory can include read only memory and random access memory and provides instructions and data to the processor.
- a portion of the processor may also include a non-volatile random access memory.
- the processor can also store information about the type of device.
- the bus system may include a power bus, a control bus, and a status signal bus in addition to the data bus.
- a power bus may include a power bus, a control bus, and a status signal bus in addition to the data bus.
- the various buses are labeled as bus systems in the figure.
- each step of the above method may be completed by an integrated logic circuit of hardware in the processor or an instruction in a form of software.
- the communication method disclosed in the embodiment of the present invention may be directly implemented as a hardware processor to perform, or may be performed by a combination of hardware and software modules in the processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.
- B corresponding to A means that B is associated with A, and B can be determined according to A. But it should also be understood that determining B according to A does not mean that it is only based on A. B, it is also possible to determine B based on A and/or other information.
- the term "and/or” herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately while 10 is stored in A. And B, there are three cases of B alone.
- the character "/" in this article generally indicates that the contextual object is an "or" relationship.
- the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present invention.
- the implementation process constitutes any limitation.
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the 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 of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
- the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
- the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method in accordance with various embodiments of the present invention.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
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Abstract
Description
指示字段的取值 | 含义 |
0 | 后续没有数据 |
1 | 后续有数据 |
指示字段的取值 | 含义 |
0 | 不是最后一包数据 |
1 | 是最后一包数据 |
T取值 | 含义 |
00 | T1 |
01 | T2 |
10 | T3 |
11 | T4 |
Claims (50)
- 一种通信方法,其特征在于,所述通信方法包括:第一设备接收第二设备发送的层二协议数据单元PDU;所述第一设备根据所述层二PDU,确定所述第一设备和所述第二设备之间需要处于的连接状态。
- 根据权利要求1所述的通信方法,其特征在于,所述第一设备为终端设备,所述第二设备为网络侧设备;或者,所述第一设备为网络侧设备,所述第二设备为终端设备;所述第一设备和所述第二设备之间需要处于的连接状态包括第一连接状态或第二连接状态,其中,所述第一连接状态为所述终端设备处于激活态时,所述终端设备和所述网络侧设备之间的连接状态;所述第二连接状态为所述终端设备处于非激活态时,所述终端设备和所述网络侧设备之间的连接状态。
- 根据权利要求1或2所述的通信方法,其特征在于,所述第一设备根据所述层二PDU,确定所述第一设备和所述第二设备之间需要处于的连接状态,包括:所述第一设备根据所述层二PDU是否携带数据包或根据所述层二PDU中的携带的第一信息,确定所述第一设备和所述第二设备之间需要处于的连接状态,其中所述第一信息用于指示所述第一设备和所述第二设备之间后续是否有数据传输。
- 根据权利要求3所述的通信方法,其特征在于,所述第一设备根据所述层二PDU是否携带数据包或根据所述层二PDU中的携带的第一信息,确定所述第一设备和所述第二设备之间需要处于的连接状态,包括:在所述第一信息用于指示所述第一设备和所述第二设备之间后续有数据传输时,确定所述第一设备和所述第二设备之间需要处于第一连接状态;在所述第一信息用于指示所述第一设备和所述第二设备之间后续没有数据传输时,确定所述第一设备和所述第二设备之间需要处于第二连接状态。
- 根据权利要求3所述的通信方法,其特征在于,所述第一设备根据所述层二PDU是否携带数据包或根据所述层二PDU中的携带的第一信息,确定所述第一设备和所述第二设备之间需要处于的连接状态,包括:在所述层二PDU携带数据包时,确定所述第一设备和所述第二设备之间需要处于第一连接状态;在所述层二PDU不携带数据包时,确定所述第一设备和所述第二设备之间需要处于第二连接状态。
- 根据权利要求1或2所述的通信方法,其特征在于,所述层二PDU携带第二信息,所述第二信息用于指示所述第一设备和所述第二设备之间需要处于的连接状态,所述第一设备根据所述层二PDU,确定所述第一设备和所述第二设备之间需要处于的连接状态,包括:所述第一设备根据所述层二PDU中的携带的第二信息,确定所述第二设备和所述第二设备之间需要处于的连接状态。
- 根据权1至6中任一项所述的通信方法,其特征在于,所述第一设备和所述第二设备当前处于第一连接状态,所述第一设备和所述第二设备之间需要处于的连接状态为第二连接状态;所述通信方法还包括:所述第一设备在接收到所述层二PDU之后,启动第一定时器;或,所述第一设备在向所述第二设备发送第三信息之后,启动第一定时器,其中,所述第三信息用于指示所述第一设备确定进入所述第二连接状态;若所述第一定时器超时,所述第一设备将所述连接状态由所述第一连接状态转换为所述第二连接状态。
- 根据权利要求7所述的通信方法,其特征在于,所述层二PDU携带第四信息,所述第四信息用于指示所述第一定时器的定时时长,所述启动第一定时器,包括:根据所述第四信息,启动所述第一定时器。
- 根据权利要求7所述的通信方法,其特征在于,所述层二PDU携带第五信息,所述第五信息用于请求获取第二设备的第二定时器的定时时长;所述通信方法还包括:所述第一设备确定所述第二定时器的定时时长;所述第一设备向所述第二设备发送第六信息,所述第六信息用于指示所述第二定时器的定时时长;所述启动第一定时器,包括:所述第一设备在向所述第二设备发送所述第六信息之后,启动所述第一 定时器;或所述第一设备在向所述第二设备发送所述第六信息之后,且接收所述第二设备发送的第七信息之后,启动所述第一定时器,其中所述第七信息用于指示所述第二设备确定进入所述第二连接状态。
- 根据权利要求1至5中任一项所述的通信方法,其特征在于,在所述第一设备接收第二设备发送的层二PDU之后,所述通信方法还包括:所述第一设备向所述第二设备发送第八信息,所述第八信息用于指示所述第一设备正确接收所述层二PDU;和/或所述第一设备向所述第二设备发送第九信息,所述第九信息用于指示所述第一设备和所述第二设备之间需要处于的连接状态。
- 一种通信方法,其特征在于,所述通信方法包括:第二设备生成层二协议数据单元PDU,所述层二PDU用于所述第一通信设备确定所述第一设备和所述第二设备之间需要处于的连接状态;所述第二设备向所述第一设备发送所述层二PDU。
- 根据权利要求11所述的通信方法,其特征在于,所述第一设备为终端设备,所述第二设备为网络侧设备;或者,所述第一设备为网络侧设备,所述第二设备为终端设备;所述第一设备和所述第二设备之间需要处于的连接状态包括第一连接状态或第二连接状态,其中所述第一连接状态为所述终端设备处于激活态时,所述终端设备和所述网络侧设备之间的连接状态;所述第二连接状态为所述终端设备处于非激活态时,所述终端设备和所述网络侧设备之间的连接状态。
- 根据权利要求11或12所述的通信方法,其特征在于,所述第二设备生成层二PDU,包括:所述第二设备根据所述第一设备和所述第二设备之间当前是否有数据包传输和/或所述第一设备和所述第二设备之间后续是否有数据传输,生成所述层二PDU。
- 根据权利要求13所述的通信方法,其特征在于,所述第二设备根据所述第一设备和所述第二设备之间当前是否有数据包传输和/或所述第一设备和所述第二设备之间后续是否有数据传输,生成所述层二PDU,包括:在所述第一设备和所述第二设备之间当前有数据包传输时,所述第二设 备生成携带所述数据包的所述层二PDU;在所述第一设备和所述第二设备之间当前没有数据包传输时,所述第二设备生成不携带数据包的所述层二PDU;在所述第一设备和所述第二设备之间后续没有数据传输时,所述第二设备生成携带用于指示所述第一设备和所述第二设备之间后续没有数据传输的第一信息的所述层二PDU;在所述第一设备和所述第二设备之间后续有数据传输时,所述第二设备生成携带用于指示所述第一设备和所述第二设备之间后续有数据传输的第一信息的所述层二PDU。
- 根据权利要求11或12所述的通信方法,其特征在于,所述通信方法还包括:所述第二设备确定所述第一设备和所述第二设备之间需要处于的连接状态;所述第二设备生成层二PDU,包括:所述第二设备生成携带用于指示所述第一设备和所述第二设备之间需要处于的连接状态的第二信息的所述层二PDU。
- 根据权利要求11至15中任一项所述的方法,其特征在于,所述第一设备和所述第二设备当前处于第一连接状态,所述第一设备和所述第二设备之间需要处于的连接状态为第二连接状态;所述通信方法还包括:所述第二设备在向所述第一设备发送所述层二PDU之后,启动第二定时器;或,所述第二设备在接收所述第一设备发送的第三信息之后,启动第二定时器,其中,所述第三信息用于指示所述第一设备确定进入所述第二连接状态;若所述第二定时器超时,所述第二设备将所述连接状态由所述第一连接状态转换为所述第二连接状态。
- 根据权利要求16所述的通信方法,其特征在于,所述第二设备生成层二PDU,包括:所述第二设备生成携带用于指示所述第一设备的第一定时器的定时时长的第四信息的所述层二PDU,以用于所述第一设备根据所述第四信息启动所述第一定时器。
- 根据权利要求16所述的通信方法,其特征在于,所述第二设备生 成层二PDU,包括:所述第二设备生成携带用于请求获取所述第二定时器的定时时长的第五信息的所述层二PDU;所述通信方法还包括:所述第二设备接收所述第一设备发送的第六信息,所述第六信息用于指示所述第二定时器的定时时长;所述启动第二定时器包括:所述第二设备在接收所述第一设备发送的所述第六信息之后,根据所述第六信息启动所述第二定时器;或所述第二设备在接收所述第一设备发送的所述第六信息之后,且向所述第一设备发送第七信息之后,根据所述第六信息启动所述第二定时器,其中所述第七信息用于指示所述第二设备确定进入所述第二连接状态。
- 根据权利要求11至14中任一项所述的通信方法,其特征在于,在所述第二设备向所述第一设备发送所述层二PDU之后,所述通信方法还包括:所述第二设备接收所述第一设备发送的第八信息,所述第八信息用于指示所述第一设备正确接收所述层二PDU;或所述第二设备接收所述第一设备发送的第九信息,所述第九信息用于指示所述第一设备和所述第二设备之间需要处于的连接状态。
- 一种通信方法,其特征在于,所述通信方法包括:启动定时器;若所述定时器超时,将所述第一设备和所述第二设备之间的连接状态由第一连接状态转换为第二连接状态。
- 根据权利要求20所述的通信方法,其特征在于,所述第一设备为终端设备,所述第二设备为网络侧设备;或者,所述第一设备为网络侧设备,所述第二设备为终端设备;所述第一设备和所述第二设备之间需要处于的连接状态包括第一连接状态或第二连接状态,其中所述第一连接状态为所述终端设备处于激活态时,所述终端设备和所述网络侧设备之间的连接状态;所述第二连接状态为所述终端设备处于非激活态时,所述终端设备和所述网络侧设备之间的连接状态。
- 根据权利要求20或21所述的通信方法,其特征在于,所述启动定时器,包括:在所述第一设备向所述第二设备发送数据包或信令之后,启动所述定时器;或在所述第一设备接收所述第二设备发送的所述数据包或所述信令的第一信息之后,启动所述定时器,其中所述第一信息用于指示所述第二设备正确接收所述数据包或所述信令。
- 根据权利要求20或21所述的通信方法,其特征在于,所述启动定时器,包括:在所述第二设备接收所述第一设备发送的数据包或信令之后,启动所述定时器;或在所述第二设备向所述第一设备发送所述数据包或所述信令对应的第二信息之后,启动所述定时器,其中所述第二信息用于指示所述第一设备正确接收所述数据包或所述信令;或在所述第一设备和第二设备之间的无线承载建立完成之后,启动所述定时器。
- 根据权利要求23所述的通信方法,其特征在于,所述第一设备和所述第二设备之间所有的无线承载对应单个定时器,所述在所述第一设备和第二设备之间的无线承载建立完成之后,启动定时器,包括:在所述第一设备和第二设备之间所有的无线承载建立完成之后,启动所述定时器。
- 根据权利要求23所述的通信方法,其特征在于,所述第一设备和所述第二设备之间所有无线承载中每个无线承载对应一个定时器,所述在所述第一设备和第二设备之间的无线承载建立完成之后,启动定时器,包括:在所述第一设备与所述第二设备之间每个无线承载建立完成之后,启动对应的定时器;所述若所述定时器设定的时间超时,将所述第一设备和所述第二设备之间的连接状态由第一连接状态切换为第二连接状态,包括:若所述所有无线承载对应的所有定时器均超时,将所述第一设备和所述第二设备之间的连接状态由第一连接状态切换为第二连接状态。
- 一种通信装置,其特征在于,所述通信装置为第一设备,所述通信装置包括:接收模块,用于接收第二设备发送的层二协议数据单元PDU;确定模块,用于根据所述层二PDU,确定所述第一设备和所述第二设备之间需要处于的连接状态。
- 根据权利要求26所述的通信装置,其特征在于,所述第一设备为终端设备,所述第二设备为网络侧设备;或者,所述第一设备为网络侧设备,所述第二设备为终端设备;所述第一设备和所述第二设备之间需要处于的连接状态包括第一连接状态或第二连接状态,其中,所述第一连接状态为所述终端设备处于激活态时,所述终端设备和所述网络侧设备之间的连接状态;所述第二连接状态为所述终端设备处于非激活态时,所述终端设备和所述网络侧设备之间的连接状态。
- 根据权利要求26或27所述的通信装置,其特征在于,所述确定模块具体用于根据所述层二PDU是否携带数据包或根据所述层二PDU中的携带的第一信息,确定所述第一设备和所述第二设备之间需要处于的连接状态,其中所述第一信息用于指示所述第一设备和所述第二设备之间后续是否有数据传输。
- 根据权利要求28所述的通信装置,其特征在于,所述确定模块具体用于:在所述第一信息用于指示所述第一设备和所述第二设备之间后续有数据传输时,确定所述第一设备和所述第二设备之间需要处于第一连接状态;在所述第一信息用于指示所述第一设备和所述第二设备之间后续没有数据传输时,确定所述第一设备和所述第二设备之间需要处于第二连接状态。
- 根据权利要求28所述的通信装置,其特征在于,所述确定模块具体用于:在所述层二PDU携带数据包时,确定所述第一设备和所述第二设备之间需要处于第一连接状态;在所述层二PDU不携带数据包时,确定所述第一设备和所述第二设备之间需要处于第二连接状态。
- 根据权利要求26或27所述的通信装置,其特征在于,所述层二PDU携带第二信息,所述第二信息用于指示所述第一设备和所述第二设备之间需要处于的连接状态,所述确定模块具体用于根据所述层二PDU中的携带的第二信息,确定所述第二设备和所述第二设备之间需要处于的连接状态。
- 根据权26至31中任一项所述的通信装置,其特征在于,所述第一设备和所述第二设备当前处于第一连接状态,所述第一设备和所述第二设备之间需要处于的连接状态为第二连接状态;所述通信装置还包括:处理模块,所述处理模块用于在所述接收模块接收到所述层二PDU之后,启动第一定时器;或所述通信装置还包括:发送模块,用于向所述第二设备发送第三信息,所述处理模块用于在所述发送模块发送第三信息之后,启动第一定时器,其中,所述第三信息用于指示所述第一设备确定进入所述第二连接状态;所述处理模块还用于若所述第一定时器超时,将所述连接状态由所述第一连接状态转换为所述第二连接状态。
- 根据权利要求32所述的通信装置,其特征在于,所述层二PDU携带第四信息,所述第四信息用于指示所述第一定时器的定时时长,所述处理模块具体用于根据所述第四信息,启动所述第一定时器。
- 根据权利要求32所述的通信装置,其特征在于,所述层二PDU携带第五信息,所述第五信息用于请求获取第二设备的第二定时器的定时时长;所述确定模块还用于确定所述第二定时器的定时时长;所述发送模块还用于向所述第二设备发送第六信息,所述第六信息用于指示所述第二定时器的定时时长;所述处理模块具体用于:在所述发送模块发送所述第六信息之后,启动所述第一定时器;或在所述发送模块发送所述第六信息之后,且所述接收模块接收所述第二设备发送的第七信息之后,启动所述第一定时器,其中所述第七信息用于指示所述第二设备确定进入所述第二连接状态。
- 根据权利要求26至30中任一项所述的通信装置,其特征在于,所述通信装置还包括发送模块,所述发送模块用于:向所述第二设备发送第八信息,所述第八信息用于指示所述第一设备正确接收所述层二PDU;和/或向所述第二设备发送第九信息,所述第九信息用于指示所述第一设备和所述第二设备之间需要处于的连接状态。
- 一种通信装置,其特征在于,所述通信装置为第二设备,所述通信装置包括:生成模块,用于生成层二协议数据单元PDU,所述层二PDU用于所述第一通信设备确定所述第一设备和所述第二设备之间需要处于的连接状态;发送模块,用于向所述第一设备发送所述层二PDU。
- 根据权利要求36所述的通信装置,其特征在于,所述第一设备为终端设备,所述第二设备为网络侧设备;或者,所述第一设备为网络侧设备,所述第二设备为终端设备;所述第一设备和所述第二设备之间需要处于的连接状态包括第一连接状态或第二连接状态,其中所述第一连接状态为所述终端设备处于激活态时,所述终端设备和所述网络侧设备之间的连接状态;所述第二连接状态为所述终端设备处于非激活态时,所述终端设备和所述网络侧设备之间的连接状态。
- 根据权利要求36或37所述的通信装置,其特征在于,所述生成模块具体用于根据第一设备和第二设备之间当前是否有数据包传输和/或第一设备和第二设备之间后续是否有数据传输,生成所述层二PDU。
- 根据权利要求38所述的通信装置,其特征在于,所述生成模块具体用于:在所述第一设备和所述第二设备之间当前有数据包传输时,生成携带所述数据包的所述层二PDU;在所述第一设备和所述第二设备之间当前没有数据包传输时,生成不携带数据包的所述层二PDU;在所述第一设备和所述第二设备之间后续没有数据传输时,生成携带用于指示所述第一设备和所述第二设备之间后续没有数据传输的第一信息的所述层二PDU;在所述第一设备和所述第二设备之间后续有数据传输时,生成携带用于指示所述第一设备和所述第二设备之间后续有数据传输的第一信息的所述层二PDU。
- 根据权利要求36或37所述的通信装置,其特征在于,所述通信装置还包括:确定模块,所述确定模块用于确定所述第一设备和所述第二设备之间需要处于的连接状态;所述生成模块具体用于生成携带用于指示所述第一设备和所述第二设备之间需要处于的连接状态的第二信息的所述层二PDU。
- 根据权利要求36至40中任一项所述的通信装置,其特征在于,所述第一设备和所述第二设备当前处于第一连接状态,所述第一设备和所述第二设备之间需要处于的连接状态为第二连接状态;所述通信装置还包括:处理模块,所述处理模块用于在所述发送模块发送所述层二PDU之后,启动第二定时器;或所述通信装置还包括:接收模块,用于接收所述第一设备发送的第三信息所述处理模块用于在所述接收模块接收所述第三信息之后,启动第二定时器,其中,所述第三信息用于指示所述第一设备确定进入所述第二连接状态;所述处理模块还用于若所述第二定时器超时,将所述连接状态由所述第一连接状态转换为所述第二连接状态。
- 根据权利要求41所述的通信装置,其特征在于,所述生成模块具体用于生成携带用于指示所述第一设备的第一定时器的定时时长第四信息的所述层二PDU,以用于所述第一设备根据所述第四信息启动所述第一定时器。
- 根据权利要求41所述的通信装置,其特征在于,所述生成模块具体用于生成携带用于请求获取所述第二定时器的定时时长的第五信息的所述层二PDU;所述接收模块还用于接收所述第一设备发送的第六信息,所述第六信息用于指示所述第二定时器的定时时长;所述处理模块具体用于:在所述接收模块接收所述第六信息之后,根据所述第六信息启动所述第二定时器;或在所述接收模块接收所述第六信息之后,且所述发送模块向所述第一设备发送第七信息之后,根据所述第六信息启动所述第二定时器,其中所述第七信息用于指示所述第二设备确定进入所述第二连接状态。
- 根据权利要求36至39中任一项所述的通信装置,其特征在于,所述通信装置包括接收模块,所述接收模块用于:接收所述第一设备发送的第八信息,所述第八信息用于指示所述第一设备正确接收所述层二PDU;或接收所述第一设备发送的第九信息,所述第九信息用于指示所述第一设备和所述第二设备之间需要处于的连接状态。
- 一种通信装置,其特征在于,所述通信装置包括:第一处理模块,用于启动定时器;第二处理模块,用于若所述定时器超时,将所述第一设备和所述第二设备之间的连接状态由第一连接状态转换为第二连接状态。
- 根据权利要求45所述的通信装置,其特征在于,所述第一设备为终端设备,所述第二设备为网络侧设备;或者,所述第一设备为网络侧设备,所述第二设备为终端设备;所述第一设备和所述第二设备之间需要处于的连接状态包括第一连接状态或第二连接状态,其中所述第一连接状态为所述终端设备处于激活态时,所述终端设备和所述网络侧设备之间的连接状态;所述第二连接状态为所述终端设备处于非激活态时,所述终端设备和所述网络侧设备之间的连接状态。
- 根据权利要求45或46所述的通信装置,其特征在于,所述第一处理模块具体用于:在所述第一设备向所述第二设备发送数据包或信令之后,启动所述定时器;或在所述第一设备接收所述第二设备发送的所述数据包或所述信令的第一信息之后,启动所述定时器,其中所述第一信息用于指示所述第二设备正确接收所述数据包或所述信令。
- 根据权利要求45或46所述的通信装置,其特征在于,所述第一处 理模块具体用于:在所述第二设备接收所述第一设备发送的数据包或信令之后,启动所述定时器;或在所述第二设备向所述第一设备发送所述数据包或所述信令对应的第二信息之后,启动所述定时器,其中所述第二信息用于指示所述第一设备正确接收所述数据包或所述信令;或在所述第一设备和第二设备之间的无线承载建立完成之后,启动所述定时器。
- 根据权利要求48所述的通信装置,其特征在于,所述第一设备和所述第二设备之间所有的无线承载对应单个定时器,所述第一处理模块具体用于在所述第一设备和第二设备之间所有的无线承载建立完成之后,启动所述定时器。
- 根据权利要求48所述的通信装置,其特征在于,所述第一设备和所述第二设备之间所有无线承载中每个无线承载对应一个定时器,所述第一处理模块具体用于在所述第一设备与所述第二设备之间每个无线承载建立完成之后,启动对应的定时器;所述第二处理模块具体用于若所述所有无线承载对应的所有定时器均超时,将所述第一设备和所述第二设备之间的连接状态由第一连接状态切换为第二连接状态。
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US20200396778A1 (en) | 2020-12-17 |
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EP3457808A1 (en) | 2019-03-20 |
CN110140417A (zh) | 2019-08-16 |
KR20190034157A (ko) | 2019-04-01 |
JP6818774B2 (ja) | 2021-01-20 |
EP3457808A4 (en) | 2019-07-10 |
CN112203364A (zh) | 2021-01-08 |
US11343862B2 (en) | 2022-05-24 |
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US10841963B2 (en) | 2020-11-17 |
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