WO2021023311A1 - 数据传输方法、装置及计算机可读存储介质 - Google Patents
数据传输方法、装置及计算机可读存储介质 Download PDFInfo
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- H—ELECTRICITY
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- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Definitions
- This application relates to a wireless communication network, for example, to a data transmission method, device, and computer-readable storage medium.
- This application provides a data transmission method, device, and computer-readable storage medium, which can optimize the signaling process of MT-EDT, reduce signaling overhead, and ensure the security and efficiency of data transmission.
- An embodiment of the application provides a data transmission method, including:
- the first communication node receives the first information sent by the second communication node, where the first information includes configuration information of the transmission resource.
- An embodiment of the application provides a data transmission method, including:
- the second communication node sends the first information to the first communication node, where the first information includes configuration information of the transmission resource.
- An embodiment of the application provides a data transmission method, including:
- the first communication node receives the air interface third transmission (message 2) sent by the second communication node.
- the air interface third transmission includes at least one of the following features: the air interface third transmission includes downlink data, and the air interface third transmission indication The first communication node sends a large amount of uplink data to the second communication node;
- the first communication node sends an air interface fourth transmission (message 3) to the second communication node according to the air interface third transmission, and the air interface fourth transmission triggers the wireless resource control RRC connection between the second communication node and the first communication node.
- an air interface fourth transmission (message 3)
- the air interface fourth transmission triggers the wireless resource control RRC connection between the second communication node and the first communication node.
- An embodiment of the application provides a data transmission method, including:
- the second communication node sends an air interface third transmission (message 2) to the first communication node.
- the air interface third transmission includes at least one of the following features: the air interface third transmission includes downlink data, and the air interface third transmission indicates the first A communication node sends a large amount of uplink data to a second communication node;
- the second communication node receives the air interface fourth transmission (message 3) sent by the first communication node, and the air interface fourth transmission triggers a radio resource control RRC connection between the second communication node and the first communication node.
- An embodiment of the application provides a data transmission device, including a processor, which is configured to implement the method of any of the foregoing embodiments when a computer program is executed.
- the embodiments of the present application also provide a computer-readable storage medium that stores a computer program, and when the computer program is executed by a processor, the method of any of the foregoing embodiments is implemented.
- FIG. 1 is a schematic diagram of the basic flow of MT-EDT provided by an embodiment
- FIG. 2 is a schematic flowchart of a data transmission method provided by an embodiment
- FIG. 3 is a schematic flowchart of another data transmission method provided by an embodiment
- FIG. 5 is a schematic flowchart of still another data transmission method provided by an embodiment
- FIG. 6 is a schematic flowchart of another data transmission method provided by an embodiment
- FIG. 7 is a schematic flowchart of an MT-EDT rollback process triggered by a terminal according to an embodiment
- FIG. 8 is a schematic flowchart of another MT-EDT rollback process triggered by a terminal according to an embodiment
- FIG. 9 is a schematic structural diagram of a data transmission device provided by an embodiment.
- FIG. 10 is a schematic structural diagram of another data transmission device provided by an embodiment
- FIG. 11 is a schematic structural diagram of another data transmission device provided by an embodiment
- FIG. 12 is a schematic structural diagram of still another data transmission device provided by an embodiment
- FIG. 13 is a schematic structural diagram of a UE provided by an embodiment
- FIG. 14 is a schematic structural diagram of a base station provided by an embodiment.
- the terminal In the version 15 (Release 15, Rel-15) Internet of Things standards (such as Narrow Band Internet of Things, NB-IoT), enhanced Machine Type Communication (eMTC), etc.), it currently supports Efficient uplink small data packet transmission (such as MO-EDT). That is, the terminal can directly encapsulate the uplink small data in the uplink signaling of the random access process and send it to the network, and the terminal and the network complete the conflict resolution, which means that the data transmission is successful. There is no need to establish a wireless connection between the terminal and the network, and the terminal is always maintained in an idle state.
- Efficient uplink small data packet transmission such as MO-EDT
- FIG. 1 shows a schematic diagram of the basic flow of MT-EDT provided by an embodiment. As shown in Figure 1, the basic process of MT-EDT mainly includes the following steps:
- Step 1 (When the terminal is in the RRC_idle (RRC idle) state (the terminal will enter the RRC_idle state after the inactivity timer expires)) the base station (evolutional NodeB (eNB) as shown in Figure 1) receives Core network equipment (Mobility Management Entity (MME) as shown in Figure 1, MME is based on the paging message triggered by the data notification sent by the Serving GateWay (S-GW)) After the message (S1Paging), it is determined that the MT-EDT process needs to be triggered.
- RRC_idle RRC idle
- S-GW Serving GateWay
- the base station sends the first transmission of the air interface (ie paging message) to the terminal (User Equipment (UE) as shown in Figure 1) through the air interface, and the paging message carries the terminal-specific (ie non-contention) random access Incoming resources and related information of the terminal dedicated wireless network temporary identity (Radio Network Tempory Identity, RNTI) used to identify the terminal's uplink and downlink transmission.
- the terminal dedicated wireless network temporary identity Radio Network Tempory Identity, RNTI
- Step 2 The terminal obtains the non-competitive random access resource according to the related information of the non-competitive random access resource, and sends the second air interface transmission to the base station, that is, the non-competitive random access resource is used to send the random access prefix, which can maximize To reduce conflicts between terminals.
- Step 3 After receiving the random access prefix sent by the terminal on the non-competitive random access resource, the base station triggers the relevant process to request the downlink data (DL Data) of the terminal from the core network, and then the base station sends the third air interface transmission to the terminal ( That is, the downlink transmission including downlink data), the downlink transmission is scrambled with the terminal-specific RNTI.
- the downlink transmission may further include updated timing advance information for the terminal.
- Step 4 After receiving the downlink data, the terminal sends the fourth air interface transmission to the base station (ie, uplink transmission scrambled by the terminal's dedicated RNTI).
- the uplink transmission may include the terminal's uplink physical layer confirmation for the received downlink data, or media access control (MAC) layer confirmation, or radio resource control (Radio Resource Control, RRC) layer confirmation, or Application layer confirmation.
- MAC media access control
- RRC Radio Resource Control
- a paging message In the first transmission on the air interface, a paging message usually contains paging records for multiple terminals. If the paging record for a terminal needs to carry complete non-competitive random access resource related information and terminal dedicated RNTI related information, it will occupy dozens of bits or more, which will result in a paging record that can be accommodated by the paging message Decrease, which in turn leads to a decrease in paging capacity.
- Some common solutions that can be used to optimize the information carried in paging records include:
- the base station can try to ensure that different dedicated offsets are allocated to different terminals that use the MT-EDT function at the same time, and that the non-competitive random access prefix calculated by the terminal is not different from other functions (such as the physical layer downlink control channel command (Physical Downlink)).
- Control Channel order, PDCCH order) Triggered non-competitive random access) Random access prefix conflicts of terminals using non-competitive random access resources.
- Solution 1-2 For the eMTC terminal, in order to further save the 3-4 bit dedicated offset carried in the paging message, the terminal can also calculate the dedicated offset for the access prefix in the non-competitive random access resource.
- the problem with this solution is that different terminals using the MT-EDT function at the same time may obtain the same dedicated offset by modulating, resulting in unexpected conflicts, and the dedicated offset calculated by the terminal itself cannot be It is ensured that the random access prefix finally obtained does not conflict with the random access prefix of the terminal that uses the non-competitive random access resource due to other functions (such as the non-competitive random access triggered by the PDCCH order).
- scheme 1-1 can be used.
- the non-competitive random access prefix is shared among multiple functions, it is difficult for a fixed-length offset to avoid conflicts between terminals using this function and avoid conflicts between terminals with this function and other functions. demand.
- the offset length or value range is as large as possible, but this will result in less offset available for other functions, and if you use this function
- resources may be wasted, and the fixed-length dedicated offset carried in the paging message may also cause unnecessary signaling overhead.
- the aforementioned common solution 1-1 is mainly optimized for the first transmission signaling overhead of the air interface when the eMTC terminal uses the MT-EDT function.
- the non-competitive random access resources also need to include the initial carrier sequence number assigned by the base station and the initial sub-carrier on the carrier Sequence number. If the carrier sequence number (4 bits) and the subcarrier sequence number (6 bits) are included in the non-competitive random access resource related information of the paging signaling, there will be 10 bits of overhead. There is no proposal for optimizing this overhead.
- the base station will carry terminal-specific (ie non-competition) random access resources in the paging message and related information about the terminal-specific RNTI used to identify the terminal's uplink and downlink transmission.
- terminal-specific RNTI used to identify the terminal's uplink and downlink transmission.
- the random access resources are configured according to the coverage level (or the number of transmission repetitions), that is, different coverage levels correspond to different random access resources.
- the base station Since the base station cannot accurately know the coverage level of the idle terminal, the base station is likely to select the random access resource corresponding to the maximum coverage level or the coverage level used by the terminal when the connection was released last time and send it to the terminal in the paging message If the terminal moves to an area where the coverage conditions are very good or the coverage conditions have changed compared with the last time the connection was released, the use of the random access resources by the terminal is likely to cause waste.
- a common optimization method for the above-mentioned problems is that the base station configures multiple sets of dedicated random access resources for the terminal so that the terminal selects the most suitable resource according to the actual coverage situation, and the base station learns the resources actually used by the terminal through blind detection.
- the base station configures multiple sets of dedicated random access resources for the terminal so that the terminal selects the most suitable resource according to the actual coverage situation, and the base station learns the resources actually used by the terminal through blind detection.
- two or more sets of random access resources for different coverage levels are provided. Access to resources will cause resource waste and unnecessary signaling overhead in some scenarios.
- the base station after the base station receives the random access prefix sent by the terminal on the non-competitive random access resource, it triggers the relevant process to request the downlink data of the terminal from the core network, and then the base station sends the air interface first to the terminal Three transmissions, that is, downlink transmissions that include downlink data.
- the terminal receives the third transmission of the air interface after sending the random access prefix, which is similar to the traditional random access process and the terminal receives the random access response (Random Access Response, RAR) after sending the random access prefix, but there are the following differences:
- the terminal After sending the random access prefix, the terminal starts to monitor the RAR after a short interval (the number of fixed-length subframes, such as 3 subframes), but for the MT-EDT function, the base station needs to obtain data from the core network before it can send the air The third transmission of the interface. If the terminal moves to a new cell after the last connection is released, the terminal sends a random access prefix at the new base station.
- the above data acquisition process may also include the process of the new base station acquiring the terminal context from the old base station, resulting in the base station
- the third transmission on the air interface is further delayed. In order to avoid unnecessary monitoring to cause power consumption, after the terminal sends the random access prefix, it is best to wait for a period of time before starting to monitor the third transmission on the air interface.
- the terminal needs to receive the RAR message within a certain length of the RAR message receiving window (RAR window).
- RAR window the third transmission on the air interface is likely to be much larger than the RAR message because it contains downlink data. Therefore, the original RAR message listening window is no longer suitable for the terminal to receive the third transmission on the air interface.
- a common optimization method for the above problems is to configure an extended RAR response receiving window for the terminal to determine the time required to receive the third transmission on the air interface, and to configure a new offset relative to the end of the second transmission on the air interface. Determine the starting position for receiving the third transmission on the air interface.
- these extended reception windows and offsets should be configured through broadcast signaling.
- a fixed set of extended receiving window and offset configuration cannot meet the needs of different scenarios.
- the base station After the base station receives the random access prefix sent by the terminal on the non-competitive random access resource, it triggers the relevant process to request the downlink data of the terminal from the core network, and then the base station sends the air interface first to the terminal Three transmissions, that is, downlink transmissions that include downlink data.
- the terminal After receiving the downlink data, the terminal transmits it to its application layer, and the application layer may notify the terminal that it needs to transmit the uplink data as an acknowledgement or response to the received downlink data.
- the downlink data may be a network command that triggers the terminal to report stored operation data, abnormal reports and other information, which may be relatively large.
- the network can include the uplink authorization in the third transmission of the air interface, so that the terminal directly includes a small amount of data in the fourth transmission of the air interface, or send a buffer status report to apply for a larger uplink authorization.
- the above method is less efficient.
- the MO-EDT standard of related technologies also supports the network side to decide whether to roll back the MO-EDT process according to whether the terminal reports release auxiliary information (that is, whether the terminal has cached uplink data to be sent) and whether the network side has cached data
- the terminal controls the transfer of the terminal to the connected state, and transmits more service data in the connected state.
- the terminal usually sends the Access Stratum (AS) or Non-Access Stratum (NAS) release auxiliary information to the network with the first uplink RRC message, and the network can use the first downlink The RRC message returns the terminal to the connected state.
- AS Access Stratum
- NAS Non-Access Stratum
- the network side may send a downlink RRC message when sending the air interface third transmission to return the terminal to the connected state.
- this procedure cannot be applied to the situation where the aforementioned terminal further discovers that there is relatively large uplink data to be transmitted after receiving the third transmission on the air interface.
- all terminals can receive the first transmission of the air interface and parse the paging message and the paging record contained therein.
- There may be a malicious pseudo terminal which uses the dedicated random access resource related information provided in the paging record for the target terminal to send a dedicated random access prefix to the base station.
- the base station estimates the uplink timing advance (TA) based on the received random access prefix, and obtains downlink service data for the terminal from the core network , And send these contents to the terminal in the second transmission on the air interface.
- TA uplink timing advance
- the base station For the User Plane Cellular Internet of Things (CIoT) Evolved Packet System (EPS) optimization (user plane CIoT EPS optimization, UP) solution, the base station will obtain the terminal’s security key and perform AS on the downlink service data Layer encryption.
- the second transmission of the above air interface can still be received by the pseudo terminal, but the service data in it is encrypted at the NAS layer (control plane CIoT EPS optimization (CP) solution) or AS layer encryption, the pseudo terminal cannot Resolve.
- CIoT User Plane Cellular Internet of Things
- CP control plane CIoT EPS optimization
- the terminal Due to the existence of the above pseudo terminal, if the terminal is only required to send the physical layer or MAC layer confirmation after receiving the second transmission of the air interface, although the pseudo terminal cannot parse the downlink service data, it can still forge the uplink confirmation, causing the base station or core network to make an incorrect judgment The data has been received by the target terminal.
- some common optimization schemes include: For the CP scheme, the terminal should send an uplink NAS protocol data unit (Protocol Data Unit, PDU) (including NAS signaling or NAS data) ) In order to verify the terminal confirmation at the NAS layer.
- PDU Protocol Data Unit
- the terminal For the UP scheme, the terminal should send encrypted uplink RRC signaling to verify the terminal confirmation at the AS layer.
- the problem with the above scheme is that for the CP scheme, new NAS signaling may need to be defined, and for the UP scheme, the uplink RRC signaling may require further downlink RRC signaling to confirm, causing unnecessary signaling load. , Resulting in the program's advantages over the traditional data transmission program is further reduced.
- the embodiments of the present application provide a mobile communication network (including but not limited to the fifth-generation mobile communication network (5th-Generation, 5G)).
- the network architecture of the network may include network-side devices (for example, one or more types of Base Station, Transmission Node, Access Point (AP, Access Point), Relay, Node B (Node B, NB), Terrestrial Radio Access (UTRA, Universal Terrestrial Radio Access), Evolved Terrestrial Radio Access (EUTRA, Evolved) Universal Terrestrial Radio Access, etc.), terminal (User Equipment (UE), user equipment data card and relay, mobile equipment, etc.).
- a data transmission method, device, and computer-readable storage medium that can run on the above network architecture are provided, which can optimize the signaling process of MT-EDT, reduce signaling overhead, and ensure data transmission. Safety and efficiency.
- Fig. 2 shows a schematic flow chart of a data transmission method provided by an embodiment.
- the method provided in this embodiment is applicable to a first communication node, and the first communication node may be a terminal (such as UE, mobile Equipment, etc.), the method includes the following steps:
- the first communication node receives first information sent by the second communication node, where the first information includes configuration information of transmission resources.
- the configuration information of the transmission resource includes at least one of the following information:
- Offset configuration information of dedicated resources frequency domain resource information of non-competitive random access resources; monitoring the mapping relationship between the first transmission resource on the air interface and non-competitive random access resources; frequency domain resources of non-competitive random access resources Information offset configuration information; time domain resource information offset configuration information of non-competitive random access resources; at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; random access resources Information on how to use it.
- FIG. 3 shows a schematic flowchart of another data transmission method provided by an embodiment. As shown in FIG. 3, in addition to the above step S110, the following steps may also be included:
- the first communication node obtains the transmission resource offset offset within the range of the configuration information of the transmission resource.
- the configuration information of the transmission resource includes at least one of the length of the transmission resource offset and the value range parameter, that is, the transmission resource offset offset within the range of the transmission resource configuration information is not greater than the length of the transmission resource offset And the transmission resource offset offset of the value range parameter.
- Transmission resources include at least one of the following resources: random access resources, competing random access resources, non-competing random access resources, uplink transmission authorized resources, downlink transmission scheduling resources, scheduling-free resources, scheduling-free uplink transmission resources, free Schedule downlink transmission resources, random access prefix in random access resources, C-RNTI designated by the terminal; other types of RNTI.
- the method for the first communication node to obtain the transmission resource offset offset includes at least one of the following two methods:
- the first communication node receives the transmission resource offset offset within the range of the transmission resource configuration information sent by the second communication node in a broadcast message or a dedicated message (the value of the offset can be a positive number, zero Or negative).
- the first communication node determines the transmission resource offset offset within the range of the configuration information of the transmission resource based on the terminal identifier or the cell identifier (for example, the terminal may be based on the length or length of the transmission resource offset of a terminal feature ID)
- the value range is modulo to obtain the transmission resource offset).
- the first communication node determines the starting position X of the transmission resource, and superimposes the transmission resource offset offset on the starting position X to obtain the actually used transmission resource position (X+offset).
- the starting position X is determined based on at least one of the terminal identification and the cell identification.
- This embodiment can be used to determine the location of the transmission resource, so that the first communication node sends a subsequent message at the location of the transmission resource (for example, the second transmission on the air interface, etc.).
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource;
- Step 1 The first communication node determines the effective value of the offset of the dedicated resource according to at least one of the length of the offset of the dedicated resource and the value range parameter.
- Step 2 The first communication node determines the dedicated resource according to the effective value of the offset of the dedicated resource.
- Step 3 After receiving the air interface first transmission (message 0 (message 0)) sent by the second communication node, the first communication node sends the air interface second transmission (message 1) to the second communication node according to the dedicated resource.
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource; the offset configuration information of the dedicated resource includes the offset configuration information of at least two sets of dedicated resources for the first communication node with different functions.
- the offset configuration information includes at least one of the length of the offset of the dedicated resource and the value range parameter.
- the function of using dedicated resources is at least one of the following functions: handover, PDCCH order, Early Data Transmission (EDT), MO-EDT, MT-EDT; the function is the offset configuration of dedicated resources One of the content of the information.
- the dedicated resources include at least one of non-competitive random access resources, dedicated random access resources, and dedicated terminal identifiers.
- Non-competitive random access resources or dedicated random access resources include at least one of the following parameters: random access prefix in eMTC system; carrier sequence number and subcarrier sequence number in random access frequency domain resources in NB-IoT system ; Random access time domain resources; New Radio (NR) systems based on single sideband (Single Side Band, SSB) random access resources (such as the number of SSBs or Random access prefix on each SSB, etc.).
- NR New Radio
- SSB Single Side Band
- the dedicated terminal identifier includes at least one of the following parameters: Cell-Radio Network Tempory Identity (C-RNTI) designated by the terminal; other types of RNTI.
- C-RNTI Cell-Radio Network Tempory Identity
- the configuration information of transmission resources includes frequency domain resource information of non-competitive random access resources, and the frequency domain resource information of non-competitive random access resources includes initial At least one of the carrier list and the initial subcarrier list;
- the initial carrier list includes N carriers, the initial subcarrier list includes T subcarriers, and N and T are positive integers;
- the method further includes at least one of the following two methods:
- the first communication node modulates N according to the carrier sequence number of the first transmission of the air interface monitored at the current moment, and determines the initial carrier sequence number of the non-competitive random access resource; after receiving the first transmission of the air interface sent by the second communication node , The first communication node sends the air interface second transmission to the second communication node according to the initial carrier sequence number of the non-competitive random access resource.
- Method 2 The first communication node modulates T according to the subcarrier sequence number of the first transmission of the air interface monitoring at the current moment, and determines the initial subcarrier sequence number of the non-competitive random access resource; After the transmission, the first communication node sends the air interface second transmission to the second communication node according to the initial subcarrier sequence number of the non-competitive random access resource.
- the configuration information of transmission resources includes the mapping relationship between the resources for monitoring the first transmission of the air interface and the non-competitive random access resources; the method also includes the following two step:
- Step 1 The first communication node determines the non-competitive random access resource according to the mapping relationship between the carrier monitoring the first transmission of the air interface at the current moment and the resource monitoring the first transmission of the air interface and the non-competitive random access resource.
- Step 2 After receiving the air interface first transmission sent by the second communication node, the first communication node sends the air interface second transmission to the second communication node according to the non-competitive random access resource, and the non-competitive random access resource includes at least At least one of the initial carrier sequence number and the initial subcarrier sequence number of the non-competitive random access resource.
- the configuration information of transmission resources includes the offset configuration information of the frequency domain resource information of the non-competitive random access resources, and the configuration information of the non-competitive random access resources.
- the offset configuration information of the frequency domain resource information includes N carriers, where N is a positive integer; if m i sub-carrier resources are configured on each carrier i, the sub-carrier resources on these carriers are arranged together (e.g. Connection method or a combination method), a set of initial frequency domain resource groups of non-competitive random access resources that can be used for non-competitive random access can be obtained, and the resource group includes M resources,
- the method also includes the following steps:
- the first communication node After receiving the air interface first transmission sent by the second communication node, the first communication node sends the air interface second transmission to the second communication node according to the initial frequency domain resource of the non-competitive random access resource; the non-competitive random access resource
- the initial frequency domain resource is obtained by using at least one of the following methods: the first communication node determines the frequency domain resource information of the non-competitive random access resource according to the offset configuration information of the frequency domain resource information of the non-competitive random access resource According to the offset of the frequency domain resource information of the non-competitive random access resource, the first communication node obtains the initial frequency of the non-competitive random access resource from the initial frequency domain resource group of the non-competitive random access resource Domain resources; the first communication node modulates M according to the terminal identifier to determine the initial frequency domain resources of the non-competitive random access resources; when the number of carriers transmitted by the air interface first is greater than M, the first communication node monitors the air The carrier sequence number of the first
- the first communication node additionally receives the offset corresponding to the non-competitive initial frequency domain resource carried in the first transmission of the air interface, and according to the offset, the first communication node can obtain information from multiple non-contention corresponding to the currently monitored paging carrier A certain non-competitive initial frequency domain resource is obtained from the initial frequency domain resource.
- the first communication node extracts the initial carrier sequence number used for non-competitive random access and the initial subcarrier sequence number on the carrier according to the obtained determined non-competitive initial frequency domain resources and the arrangement manner of the resources.
- the configuration information of the transmission resource includes information about the use mode of the random access resource; the information about the use mode of the random access resource includes at least one of the following information:
- the use mode information of each random access resource corresponds to a set of random access resources; the use mode information of random access resources is used to mark the coverage level of random access resources; the use mode information of random access resources is used to mark the first
- the communication node uses the random access resource to send the characteristics of the uplink transmission after the second transmission on the air interface; the method further includes the following steps:
- the first communication node After receiving the first air interface transmission sent by the second communication node, the first communication node selects a set of random access resources and sends the second air interface transmission to the second communication node.
- the signaling overhead occupied by the configuration of multiple sets of random access resources can be used to provide as much information as possible. For example, different random access resources can be used to distinguish whether the first communication node needs to be in the fourth air interface after receiving downlink data. Send additional uplink data during transmission.
- the network brings the characteristic information of the first communication node (for example, Subscription Based UE Differentiation Information) or status information to the second communication node in the paging message, or the second communication node
- the communication node stores some terminal characteristic information or state information in the access layer context of the first communication node when the connection is released last time.
- the second communication node After receiving the paging message from the core network, the second communication node carries multiple sets of random access resource related information in the paging message to the first communication node, and the second communication node determines the first communication node based on the characteristic information or status information.
- the type of the communication node, and the use mode of multiple sets of random access resources is marked according to the type of the first communication node.
- the configuration information of transmission resources includes at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; each set of downlink transmission reception timer configuration information includes type information, timing At least one of the length of the timer and the offset of the timer's starting position; the type information is used to indicate whether the state of the first communication node is stationary or non-stationary, or is used to indicate whether the first communication node is always in a cell or from Other cells move; the timer start position offset is set to the offset relative to the previous uplink transmission end position of the first communication node.
- the downlink transmission reception timer configuration information can be used as a reference configuration, and the second communication node can further extend different reference configurations to configurations for different coverage levels, which is not specifically limited in this application.
- the method further includes the following two steps:
- Step 1 The first communication node receives the third air interface transmission (message 2) sent by the second communication node.
- Step 2 The first communication node sends a fourth air interface transmission (message 3) to the second communication node, and the fourth air interface transmission includes the identity of the first communication node.
- the identity of the first communication node includes at least one of a NAS identity (for example, Serving-Temporary Mobile Subscriber Identity, S-TMSI) and a recovery ID (for example, ResumeID).
- NAS identity for example, Serving-Temporary Mobile Subscriber Identity, S-TMSI
- ResumeID for example, ResumeID
- the second communication node After receiving the identification of the first communication node, the second communication node compares the identification with the saved identification of the first communication node associated with the paging message. If they are consistent, the fourth transmission on the air interface is considered to be from the target first communication node. A communication node. In this embodiment, since no new uplink NAS signaling or RRC signaling is introduced, additional downlink NAS or RRC confirmation signaling can be avoided, and signaling overhead can be saved.
- the first communication node identifier can be included in the uplink media access control element (MAC CE), or can be added to the uplink service data (for example, the uplink sent by the application layer to confirm the downlink service data). Business data).
- MAC CE uplink media access control element
- the first transmission on the air interface mentioned in the above embodiment may be a paging message; the second transmission on the air interface may be at least one of a random access message and a random access prefix; the third transmission on the air interface may be downlink data information . At least one of a random access response message and a random access prefix response; the fourth transmission of the air interface may be at least one of an uplink message and an uplink data information.
- the first information may be at least one of a broadcast message, a dedicated message, a unicast message, and configuration signaling.
- Fig. 4 shows a schematic flow diagram of another data transmission method provided by an embodiment.
- the method provided in this embodiment is applicable to a second communication node, which may be a base station (e.g., eNB, AP, etc.), the method includes the following steps.
- a base station e.g., eNB, AP, etc.
- the second communication node sends first information to the first communication node, where the first information includes configuration information of the transmission resource.
- the configuration information of the transmission resource includes at least one of the following information:
- Offset configuration information of dedicated resources frequency domain resource information of non-competitive random access resources; monitoring the mapping relationship between the first transmission resource on the air interface and non-competitive random access resources; frequency domain resources of non-competitive random access resources Information offset configuration information; time domain resource information offset configuration information of non-competitive random access resources; at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; random access resources Information on how to use it.
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource;
- the offset configuration information of the dedicated resource includes at least the length of the offset of the dedicated resource and the value range parameter One; the method also includes the following steps: after sending the air interface first transmission (message 0) to the first communication node, the second communication node receives the air interface second transmission (message 1) sent by the first communication node according to dedicated resources .
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource; the offset configuration information of the dedicated resource includes the offset configuration information of at least two sets of dedicated resources for the first communication node with different functions.
- the offset configuration information includes at least one of the length of the offset of the dedicated resource and the value range parameter.
- the function of using dedicated resources is at least one of the following functions: handover, PDCCH order, Early Data Transmission (EDT), MO-EDT, MT-EDT; the function is the offset configuration of dedicated resources One of the content of the information.
- the dedicated resources include at least one of non-competitive random access resources, dedicated random access resources, and dedicated terminal identifiers.
- Non-competitive random access resources or dedicated random access resources include at least one of the following parameters: random access prefix in eMTC system; carrier sequence number and subcarrier sequence number in random access frequency domain resources in NB-IoT system ; Random access time domain resources; SSB-based random access resources in the NR system (such as the number of SSBs per random access occasion or the random access prefix on each SSB, etc.).
- the dedicated terminal identifier includes at least one of the following parameters: C-RNTI designated by the terminal; other types of RNTI.
- the configuration information of transmission resources includes frequency domain resource information of non-competitive random access resources, and the frequency domain resource information of non-competitive random access resources includes initial At least one of the carrier list and the initial subcarrier list;
- the initial carrier list includes N carriers, the initial subcarrier list includes T subcarriers, and N and T are positive integers;
- the method also includes at least one of the following two methods:
- Method 1 After sending the first air interface transmission to the first communication node, the second communication node receives the air interface second transmission sent by the first communication node according to the initial carrier sequence number of the non-competitive random access resource.
- Method 2 After sending the air interface first transmission to the first communication node, the second communication node receives the air interface second transmission sent by the first communication node according to the initial subcarrier sequence number of the non-competitive random access resource.
- the configuration information of the transmission resources includes the mapping relationship between the resources of the first transmission on the monitoring air interface and the non-competitive random access resources; the method further includes the following steps:
- the second communication node After sending the air interface first transmission to the first communication node, the second communication node receives the air interface second transmission sent by the first communication node according to the non-competitive random access resource.
- the non-competitive random access resource includes at least the non-competitive random access resource. At least one of the initial carrier sequence number and the initial subcarrier sequence number of the incoming resource.
- the configuration information of transmission resources includes the offset configuration information of the frequency domain resource information of the non-competitive random access resources, and the configuration information of the non-competitive random access resources.
- the offset configuration information of the frequency domain resource information includes N carriers, where N is a positive integer; if m i subcarrier resources are configured on each carrier i, the initial frequency domain resource group of the non-competitive random access resource includes M Resources, The method also includes the following steps:
- the second communication node After sending the air interface first transmission to the first communication node, the second communication node receives the air interface second transmission sent by the first communication node according to the initial frequency domain resource of the non-competitive random access resource.
- the configuration information of the transmission resource includes information about the use mode of the random access resource; the information about the use mode of the random access resource includes at least one of the following information:
- the use mode information of each random access resource corresponds to a set of random access resources; the use mode information of random access resources is used to mark the coverage level of random access resources; the use mode information of random access resources is used to mark the first
- the communication node uses the random access resource to send the characteristics of the uplink transmission after the second transmission on the air interface; the method further includes the following steps:
- the second communication node After sending the air interface first transmission to the first communication node, the second communication node receives the air interface second transmission sent by the first communication node according to the selected set of random access resources.
- the configuration information of transmission resources includes at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; each set of downlink transmission reception timer configuration information includes type information, timing At least one of the length of the timer and the offset of the start position of the timer;
- the type information is used to indicate whether the state of the first communication node is stationary or non-stationary, or is used to indicate whether the first communication node is always in one cell or moving from another cell; the timer start position offset is set to relative The offset of the end position of the uplink transmission before the first communication node.
- the method further includes the following two steps:
- Step 1 The second communication node sends a third air interface transmission (message 2) to the first communication node.
- Step 2 The second communication node receives a fourth air interface transmission (message 3) sent by the first communication node, and the fourth air interface transmission includes the identity of the first communication node.
- the identifier of the first communication node includes at least one of a NAS identifier (for example, S-TMSI) and a recovery ID (for example, ResumeID).
- a NAS identifier for example, S-TMSI
- a recovery ID for example, ResumeID
- the first transmission on the air interface mentioned in the above embodiment may be a paging message; the second transmission on the air interface may be at least one of a random access message and a random access prefix; the third transmission on the air interface may be downlink data information . At least one of a random access response message and a random access prefix response; the fourth transmission of the air interface may be at least one of an uplink message and an uplink data information.
- the first information may be at least one of a broadcast message, a dedicated message, a unicast message, and configuration signaling.
- Fig. 5 shows a schematic flow diagram of another data transmission method provided by an embodiment.
- the method provided in this embodiment is applicable to a first communication node, and the first communication node may be a terminal (such as a UE, Mobile equipment, etc.), the method is mainly aimed at problem 4, the method includes the following steps.
- the first communication node receives the air interface third transmission (message 2) sent by the second communication node, and the air interface third transmission includes at least one of the following features: the air interface third transmission includes downlink data, and the air interface third transmission The transmission instructs the first communication node to send a large amount of uplink data to the second communication node.
- the air interface third transmission includes downlink data
- the air interface third transmission includes downlink data
- the air interface third transmission instructs the first communication node to send a large amount of uplink data to the second communication node.
- the first communication node sends a fourth air interface transmission (message 3) to the second communication node according to the third transmission of the air interface, and the fourth transmission of the air interface triggers a radio resource control RRC connection between the second communication node and the first communication node. .
- the first communication node initiates a fallback procedure in the fourth transmission of the air interface, triggering the radio resource control RRC connection between the second communication node and the first communication node.
- the first communication node Since the first communication node has used the dedicated random access resource for access in the second transmission of the air interface, it is no longer necessary to include conflict resolution related information in the fallback procedure signaling initiated by the first communication node. Secondly, because there is already a data transmission channel between the first communication node and the second communication node (for the CP scheme, at least the Signal Resource Bearers (SRB) can be used or SRB1 is established and used for data transmission.
- the UP scheme can use activated data resource bearers (Data Resource Bearers, DRB) for data transmission) without triggering the configuration process of SRB or DRB.
- DRB Data Resource Bearers
- the fourth transmission on the air interface includes any one of an RRC connection establishment complete message, an RRC connection recovery complete message, and an RRC connection reconfiguration complete message.
- the fourth transmission on the air interface further includes any one of an RRC connection establishment request message, an RRC connection recovery request message, and an RRC connection reconfiguration request message.
- the method also includes the following two steps:
- the first communication node receives the fifth air interface transmission (message 4) sent by the second communication node.
- the fifth air interface transmission includes any one of an RRC connection establishment message, an RRC connection recovery message, and an RRC connection reconfiguration message .
- Step 2 The first communication node sends the sixth transmission of the air interface to the second communication node according to the fifth transmission of the air interface.
- the sixth transmission of the air interface includes an RRC connection establishment complete message, an RRC connection recovery complete message, and an RRC connection reconfiguration complete message Any of them.
- the fourth transmission on the air interface includes the identity of the first communication node.
- the identifier of the first communication node includes at least one of a NAS identifier (for example, S-TMSI) and a recovery ID (for example, ResumeID).
- the identifier of the first communication node is used by the second communication node to verify the target first communication node.
- the second communication node After receiving the identification of the first communication node, the second communication node compares the identification with the saved identification of the first communication node associated with the paging message. If they are consistent, the fourth transmission on the air interface is considered to be from the target first communication node. A communication node. In this embodiment, since no new uplink NAS signaling or RRC signaling is introduced, additional downlink NAS or RRC confirmation signaling can be avoided, and signaling overhead can be saved.
- Fig. 6 shows a schematic flowchart of another data transmission method provided by an embodiment.
- the method provided in this embodiment is applicable to a second communication node, and the second communication node may be a base station (e.g., eNB, AP, etc.), this method is mainly aimed at problem 4, the method includes the following steps.
- the second communication node sends an air interface third transmission (message 2) to the first communication node.
- the air interface third transmission includes at least one of the following features: the air interface third transmission includes downlink data, and the air interface third transmission Instruct the first communication node to send a large amount of uplink data to the second communication node.
- the second communication node receives a fourth air interface transmission (message 3) sent by the first communication node, and the fourth air interface transmission triggers a radio resource control RRC connection between the second communication node and the first communication node.
- a fourth air interface transmission (message 3) sent by the first communication node
- the fourth air interface transmission triggers a radio resource control RRC connection between the second communication node and the first communication node.
- the first communication node initiates a fallback procedure in the fourth transmission of the air interface, triggering the radio resource control RRC connection between the second communication node and the first communication node.
- the fourth transmission on the air interface includes any one of an RRC connection establishment complete message, an RRC connection recovery complete message, and an RRC connection reconfiguration complete message.
- the fourth transmission on the air interface further includes any one of an RRC connection establishment request message, an RRC connection recovery request message, and an RRC connection reconfiguration request message.
- the method also includes the following two steps:
- Step 1 The second communication node sends a fifth air interface transmission (message 4) to the first communication node.
- the fifth air interface transmission includes any one of an RRC connection establishment message, an RRC connection recovery message, and an RRC connection reconfiguration message.
- Step 2 The second communication node receives the air interface sixth transmission sent by the first communication node, and the air interface sixth transmission includes any one of an RRC connection establishment complete message, an RRC connection recovery complete message, and an RRC connection reconfiguration complete message.
- the fourth transmission on the air interface includes the identity of the first communication node.
- the identifier of the first communication node includes at least one of a NAS identifier (for example, S-TMSI) and a recovery ID (for example, ResumeID).
- the identifier of the first communication node is used by the second communication node to verify the target first communication node.
- the terminal receives the length or value range parameter of the non-contention random access prefix offset used for the MT-EDT function configured in the system message by the network.
- the offset can be set to a shorter length or value range, such as 2 bits, which occupies less paging signaling overhead; when there are more terminals using the MT-EDT function, The offset can be set to a larger length or value range, for example, 5 bits, so as to support non-competitive random access for more terminals.
- the base station can include in the paging signaling not more than the length or value range allocated for different terminals
- the terminal is based on the starting value or reference value of the non-competitive random access prefix (for example, the maximum value of the competing random access prefix plus 1) and the non-competitive random access prefix offset.
- the terminal can obtain the non-competitive random access prefix offset used by itself by modulating the length or value range parameter based on a terminal characteristic ID.
- the terminal receives multiple non-competitive random access prefix offsets configured in the system message for multiple functions (such as MT-EDT function and random access function triggered by PDCCH order).
- the length of the shift or the value range parameter; or the network divides all available non-competitive random access prefix offsets and provides them to different functions.
- the MT-EDT function is allocated a 4-bit non-competitive random access prefix offset length
- the PDCCH order function is allocated a 2-bit non-competitive random access prefix offset length.
- the base station may include different non-competitive random access prefix offsets allocated to different terminals that are not greater than the offset length or value range parameter corresponding to the corresponding function in the paging signaling or PDCCH order signaling.
- the terminal can obtain the non-competitive random access prefix offset used by itself by modulating the length or value range corresponding to the corresponding function based on a terminal feature ID.
- the terminal receives the length or value range parameter of the dedicated C-RNTI offset for the MT-EDT function and the starting value of the dedicated C-RNTI configured in the system message by the network At least one of.
- the base station can include in the paging signaling the dedicated C-RNTI offset allocated to different terminals that is not greater than the length or value range parameter.
- the terminal is based on the initial value of the dedicated C-RNTI (configured by the base station or according to other RNTI The range is derived) and the dedicated C-RNTI offset to obtain the actual dedicated C-RNTI that should be used.
- the terminal may modulate the length or value range of the dedicated C-RNTI offset based on a terminal feature ID to obtain the dedicated C-RNTI offset used by itself.
- the terminal receives the length or value range parameters of multiple dedicated C-RNTI offsets for multiple functions configured by the network in a system message. Or the network will segment all available dedicated C-RNTI offsets and provide them to different functions.
- the base station carries multiple sets of random access resource related information to the terminal in the paging message, and each set of random access resource related information may include the use mode information of the random access resource .
- the base station After receiving the paging message from the core network, the base station determines whether it is a mobile terminal according to the characteristic information or status information. If the terminal is a mobile terminal, the base station carries multiple sets of random access resource related information to the terminal in the paging message, and uses the usage information to mark the multiple sets of random access resources corresponding to different coverage levels; if the terminal is stationary For the terminal, the base station carries multiple sets of random access resource related information to the terminal in the paging message, and uses the usage mode information to mark that the multiple sets of random access resources correspond to the fourth transmission of different air interfaces.
- the first use mode is used to indicate that the terminal will include data in subsequent uplink transmissions (such as the first uplink transmission after the random access prefix), and a larger uplink authorization needs to be requested;
- the second use mode is used to instruct the terminal in the subsequent uplink transmissions.
- the uplink transmission (such as the first uplink transmission after the random access prefix) does not contain data, and the network can allocate a smaller uplink authorization. If the relevant information of each set of random access resources respectively contains coverage level information, it can be considered to implicitly indicate that these random access resources correspond to different coverage levels.
- a usage mode indication when the terminal uses the set of random access resources, it indicates that the terminal is at coverage level n and will include data in the uplink transmission after the random access prefix.
- Indicate with another usage method when the terminal uses the set of random access resources, it indicates that the terminal is at coverage level n and will not include data in the uplink transmission after the random access prefix.
- the terminal After receiving the first transmission (paging message) on the air interface, the terminal selects one of the multiple sets of coverage levels to initiate random access (that is, sends the second transmission on the air interface) according to actual needs.
- the base station broadcasts two sets of downlink transmission and reception timer configuration information.
- the use mode information of random access resources respectively mark the two sets of downlink transmission and reception timer configuration information (for stationary terminals and non-stationary terminals respectively), or the use mode information of random access resources respectively mark the two sets of downlink transmission and reception timers Configuration information (respectively for terminals that are always in this cell or terminals that move from other cells).
- the start position offset of the timer can be set to a smaller value, or the timer duration can be set to a smaller value.
- the start position offset of the timer can be set to a larger value, or the timer duration can be set to a larger value.
- the base station can provide downlink transmission and reception timer configuration information for multiple sets of coverage levels. If the terminal moves after the last connection is released, the terminal will select the downlink transmission reception timer configuration information for the non-stationary terminal and adapt to the coverage level used to send the random access prefix to receive the third air interface. transmission. The base station will also determine whether the paged terminal has moved and the applicable coverage level based on the situation of receiving the dedicated random access prefix, so as to send the third air interface to the terminal within the appropriate timer starting position and timer duration. transmission.
- FIG. 7 shows a schematic flowchart of a terminal-triggered rollback process of MT-EDT according to an embodiment.
- the terminal can send any of the related technology RRC connection establishment request message, RRC connection recovery request message, and RRC connection reconfiguration request message in the fourth transmission of the air interface to request the establishment/recovery/reconfiguration of the air interface (such as RRC) Connect, the message can carry part of the uplink data or buffer status report at the same time.
- the base station After receiving the fourth transmission of the air interface, the base station sends the fifth transmission of the air interface to the terminal, which may include an air interface establishment message/recovery message/reconfiguration message, but does not need to include conflict resolution related information, and does not need to trigger the base station and the core network again The establishment or restoration of inter-connection.
- the terminal After receiving the fifth transmission of the air interface, the terminal enters the connected state and sends the sixth transmission of the air interface to the base station, which may include an air interface establishment completion message/recovery completion message/reconfiguration completion message.
- a terminal using the CP scheme can use this seventh exemplary embodiment.
- FIG. 8 shows a schematic flowchart of another terminal-triggered MT-EDT rollback process provided by an embodiment.
- the terminal may directly include the air interface establishment completion message/recovery completion message/reconfiguration completion message in the fourth transmission of the air interface, and switch to the connected state. If the subsequent base station needs to modify the terminal configuration, it can initiate an air interface connection reconfiguration process.
- a terminal using the UP scheme can use the eighth exemplary embodiment.
- FIG. 9 shows a schematic structural diagram of a data transmission device provided by an embodiment.
- the data transmission device may be configured in a first communication node. As shown in FIG. 9, it includes a receiving module 10. In an embodiment, it further includes: a processing module 11 and a sending module 12.
- the receiving module 10 is configured to receive first information sent by the second communication node, where the first information includes configuration information of transmission resources.
- the data transmission device provided in this embodiment implements the data transmission method of the embodiment shown in FIG. 2 or FIG. 3, and the implementation principle of the data transmission device provided in this embodiment is similar, and will not be repeated here.
- the configuration information of the transmission resource includes at least one of the following information:
- Offset configuration information of dedicated resources frequency domain resource information of non-competitive random access resources; monitoring the mapping relationship between the first transmission resource on the air interface and non-competitive random access resources; frequency domain resources of non-competitive random access resources Information offset configuration information; time domain resource information offset configuration information of non-competitive random access resources; at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; random access resources Information on how to use it.
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource; the offset configuration information of the dedicated resource includes at least one of the length of the offset of the dedicated resource and the value range parameter; processing Module 11 is configured to determine the effective value of the offset of the dedicated resource according to at least one of the length of the offset of the dedicated resource and the value range parameter; determine the effective value of the offset of the dedicated resource according to the effective value of the offset of the dedicated resource.
- the sending module 12 is configured to send the second air interface transmission (message 1) to the second communication node after the receiving module 10 receives the air interface first transmission (message 0) sent by the second communication node according to the dedicated resources.
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource; the offset configuration information of the dedicated resource includes the offset configuration information of at least two sets of dedicated resources for the first communication node with different functions ,
- the offset configuration information of each set of dedicated resources includes at least one of the length of the offset of the dedicated resource and the value range parameter.
- the function of using dedicated resources is at least one of the following functions: handover, physical layer downlink control channel command (PDCCH order), early data transmission EDT, initial call early data transmission MO-EDT, End-call advance data transmission MT-EDT; the function is one of the content of the offset configuration information of the dedicated resource.
- PDCCH order physical layer downlink control channel command
- EDT early data transmission
- MO-EDT initial call early data transmission
- MT-EDT End-call advance data transmission
- the function is one of the content of the offset configuration information of the dedicated resource.
- the dedicated resources include at least one of non-competitive random access resources, dedicated random access resources, and dedicated terminal identifiers.
- the non-competitive random access resource or the dedicated random access resource includes at least one of the following parameters: the random access prefix in the enhanced machine-type communication eMTC system; the random access prefix in the narrowband Internet of Things NB-IoT system Access to the carrier sequence number and subcarrier sequence number in the frequency domain resources; random access time domain resources; random access resources based on single sideband SSB in the new radio access technology NR system;
- the dedicated terminal identifier includes at least one of the following parameters: the cell radio network temporary identifier C-RNTI designated by the terminal; other types of wireless network temporary identifier RNTI.
- the configuration information of the transmission resource includes frequency domain resource information of the non-competitive random access resource, and the frequency domain resource information of the non-competitive random access resource includes at least one of an initial carrier list and an initial subcarrier list;
- the initial carrier list includes N carriers, and the initial subcarrier list includes T subcarriers, where N and T are positive integers;
- the processing module 11 is set to modulo N according to the carrier sequence number of the first transmission on the air interface at the current moment to determine non-competition The initial carrier sequence number of the random access resource;
- the sending module 12 is configured to send the second communication node to the second communication node according to the initial carrier sequence number of the non-competitive random access resource after the receiving module 10 receives the air interface first transmission sent by the second communication node Send the second transmission of the air interface; and/or;
- the processing module 11 is configured to modulate T according to the subcarrier sequence number of the first transmission of the air interface monitored at the current moment to determine the initial subcarrier sequence number of the non-com
- the configuration information of the transmission resource includes the mapping relationship between the resource for monitoring the first transmission of the air interface and the non-competitive random access resource; the processing module 11 is configured to monitor the carrier of the first transmission of the air interface and monitor according to the current moment.
- the mapping relationship between the first transmission resource of the air interface and the non-competitive random access resource determines the non-competitive random access resource; the sending module 12 is configured to, after the receiving module 10 receives the first transmission of the air interface sent by the second communication node, Send the second air interface transmission to the second communication node according to the non-competitive random access resource.
- the non-competitive random access resource includes at least one of the initial carrier sequence number and the initial subcarrier sequence number of the non-competitive random access resource.
- the configuration information of the transmission resource includes the offset configuration information of the frequency domain resource information of the non-competitive random access resource, and the offset configuration information of the frequency domain resource information of the non-competitive random access resource includes N items.
- Carrier N is a positive integer; if m i sub-carrier resources are configured on each carrier i, the initial frequency domain resource group of non-competitive random access resources includes M resources,
- the sending module 12 is configured to, after the receiving module 10 receives the air interface first transmission sent by the second communication node, send the air interface second transmission to the second communication node according to the initial frequency domain resource of the non-competitive random access resource;
- the initial frequency domain resource of the competing random access resource is obtained by using at least one of the following methods: the first communication node determines the non-competitive random access resource according to the offset configuration information of the frequency domain resource information of the non-competitive random access resource The first communication node obtains the non-competitive random access from the initial frequency-domain resource group of the non-com
- the initial frequency domain resource of the input resource; the first communication node modulates M according to the terminal identifier, and determines the initial frequency domain resource of the non-competitive random access resource; when the number of carriers for the first transmission of the air interface is greater than M, the first communication node According to the carrier sequence number of the first transmission of the air interface monitored at the current moment, the initial frequency domain resource of the non-competitive random access resource is determined by modulating M; when the number of carriers of the first transmission of the air interface is less than M, the first communication node Each resource sequence number in the initial frequency domain resource group of the random access resource is modulo the number of carriers monitored for the first transmission on the air interface to determine the initial frequency domain resource of the non-competitive random access resource.
- the transmission resource configuration information includes at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; each set of downlink transmission reception timer configuration information includes type information, timer length, and timing
- the type information is used to indicate whether the state of the first communication node is stationary or non-stationary, or is used to indicate whether the first communication node is always in one cell or moving from another cell. Come; the timer start position offset is set to the offset relative to the first communication node's previous uplink transmission end position.
- the configuration information of the transmission resource includes information about the use mode of the random access resource; the information about the use mode of the random access resource includes at least one of the following information:
- the use mode information of each random access resource corresponds to a set of random access resources; the use mode information of random access resources is used to mark the coverage level of random access resources; the use mode information of random access resources is used to mark the first
- the communication node uses random access resources to send the characteristics of the uplink transmission after the second transmission of the air interface; the processing module 11 is configured to select a set of random access after the receiving module 10 receives the first transmission of the air interface sent by the second communication node Resource; sending module 12, configured to send a second air interface transmission to the second communication node.
- the processing module 11 is configured to obtain the transmission resource offset offset within the range of the configuration information of the transmission resource; determine the starting position X of the transmission resource, and superimpose the transmission resource offset on the starting position X Measure the offset to get the actual used transmission resource location (X+offset).
- the transmission resources include at least one of the following resources: random access resources, competing random access resources, non-competitive random access resources, scheduling-free resources, scheduling-free uplink transmission resources, scheduling-free downlink transmission resources .
- the starting position X is determined based on at least one of the terminal identity and the cell identity.
- the receiving module 10 is set to receive the transmission resource offset within the range of the configuration information of the transmission resource sent by the second communication node in a broadcast message or a dedicated message; the processing module 11 is set to Determine the transmission resource offset offset within the range of the configuration information of the transmission resource based on the terminal identifier or the cell identifier.
- the receiving module 10 is further configured to receive the third air interface transmission (message 2) sent by the second communication node; the sending module 12 is further configured to send the air interface fourth transmission (message 2) to the second communication node. 3)
- the fourth transmission on the air interface includes the identity of the first communication node.
- the identifier of the first communication node includes at least one of a non-access stratum NAS identifier and a recovery identifier ID.
- the first transmission on the air interface is a paging message; the second transmission on the air interface is at least one of a random access message and a random access prefix; and the third transmission on the air interface is downlink data information and random access. At least one of a response message and a random access prefix response; the fourth transmission on the air interface is at least one of an uplink message and uplink data information.
- the first information is at least one of a broadcast message, a dedicated message, a unicast message, and configuration signaling.
- FIG. 10 shows a schematic structural diagram of another data transmission device provided by an embodiment.
- the data transmission device may be configured in a second communication node. As shown in FIG. 10, it includes: a sending module 20. In an embodiment, it further includes: a receiving module 21.
- the sending module 20 is configured to send first information to the first communication node, where the first information includes configuration information of the transmission resource.
- the data transmission device provided in this embodiment implements the data transmission method of the embodiment shown in FIG. 4, and the implementation principle of the data transmission device provided in this embodiment is similar, and will not be repeated here.
- the configuration information of the transmission resource includes at least one of the following information:
- Offset configuration information of dedicated resources frequency domain resource information of non-competitive random access resources; monitoring the mapping relationship between the first transmission resource on the air interface and non-competitive random access resources; frequency domain resources of non-competitive random access resources Information offset configuration information; time domain resource information offset configuration information of non-competitive random access resources; at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; random access resources Information on how to use it.
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource; the offset configuration information of the dedicated resource includes at least one of the length of the offset of the dedicated resource and the value range parameter; receive;
- the module 21 is configured to receive the second air interface transmission (message 1) sent by the first communication node according to the dedicated resource after the sending module 20 sends the air interface first transmission (message 0) to the first communication node.
- the configuration information of the transmission resource includes the offset configuration information of the dedicated resource; the offset configuration information of the dedicated resource includes the offset configuration information of at least two sets of dedicated resources for the first communication node with different functions ,
- the offset configuration information of each set of dedicated resources includes at least one of the length of the offset of the dedicated resource and the value range parameter.
- the function of using dedicated resources is at least one of the following functions: handover, physical layer downlink control channel command (PDCCH order), early data transmission EDT, initial call early data transmission MO-EDT, End-call advance data transmission MT-EDT; the function is one of the content of the offset configuration information of the dedicated resource.
- PDCCH order physical layer downlink control channel command
- EDT early data transmission
- MO-EDT initial call early data transmission
- MT-EDT End-call advance data transmission
- the function is one of the content of the offset configuration information of the dedicated resource.
- the dedicated resources include at least one of non-competitive random access resources, dedicated random access resources, and dedicated terminal identifiers.
- the non-competitive random access resource or the dedicated random access resource includes at least one of the following parameters: the random access prefix in the enhanced machine-type communication eMTC system; the random access prefix in the narrowband Internet of Things NB-IoT system Access to the carrier sequence number and sub-carrier sequence number in frequency domain resources; random access time domain resources; random access resources based on single sideband SSB in the new radio access technology NR system; dedicated terminal identification includes at least one of the following parameters Item: The cell radio network temporary identification C-RNTI designated by the terminal; other types of wireless network temporary identification RNTI.
- the configuration information of the transmission resource includes frequency domain resource information of the non-competitive random access resource, and the frequency domain resource information of the non-competitive random access resource includes at least one of an initial carrier list and an initial subcarrier list;
- the initial carrier list includes N carriers, and the initial subcarrier list includes T subcarriers. N and T are positive integers;
- the receiving module 21 is configured to receive the first air interface transmission after the sending module 20 sends the air interface first transmission to the first communication node.
- the second transmission of the air interface sent by the communication node according to the initial carrier sequence number of the non-competitive random access resource; and/or the receiving module 21 is configured to receive the first transmission of the air interface after the sending module 20 sends the first air interface transmission to the first communication node A second transmission on the air interface sent in a communication section according to the initial subcarrier sequence number of the non-competitive random access resource.
- the configuration information of the transmission resource includes the mapping relationship between the resource for monitoring the first transmission of the air interface and the non-competitive random access resource; the receiving module 21 is configured to send the air interface first transmission module 20 to the first communication node. After a transmission, the second air interface transmission sent by the first communication node according to the non-competitive random access resource is received.
- the non-competitive random access resource includes at least the initial carrier sequence number and the initial subcarrier sequence number of the non-competitive random access resource. One item.
- the configuration information of the transmission resource includes the offset configuration information of the frequency domain resource information of the non-competitive random access resource, and the offset configuration information of the frequency domain resource information of the non-competitive random access resource includes N items.
- Carrier N is a positive integer; if m i sub-carrier resources are configured on each carrier i, the initial frequency domain resource group of non-competitive random access resources includes M resources,
- the receiving module 21 is configured to receive the second air interface transmission sent by the first communication node according to the initial frequency domain resource of the non-competitive random access resource after the sending module 20 sends the first air interface transmission to the first communication node.
- the transmission resource configuration information includes at least two sets of downlink transmission reception timer configuration information for different types of first communication nodes; each set of downlink transmission reception timer configuration information includes type information, timer length, and timing
- the type information is used to indicate whether the state of the first communication node is stationary or non-stationary, or is used to indicate whether the first communication node is always in one cell or moving from another cell. Come; the timer start position offset is set to the offset relative to the first communication node's previous uplink transmission end position.
- the configuration information of the transmission resource includes information about the use mode of the random access resource; the information about the use mode of the random access resource includes at least one of the following information:
- the use mode information of each random access resource corresponds to a set of random access resources; the use mode information of random access resources is used to mark the coverage level of random access resources; the use mode information of random access resources is used to mark the first
- the communication node uses random access resources to send the characteristics of the uplink transmission after the second transmission of the air interface; the receiving module 21 is configured to receive the first communication node according to the selection after the sending module 20 sends the first transmission of the air interface to the first communication node A set of random access resources are sent for the second transmission on the air interface.
- the sending module 20 is further configured to send a third air interface transmission (message 2) to the first communication node; the receiving module 21 is further configured to receive a fourth air interface transmission (message 2) sent by the first communication node. 3) The fourth transmission on the air interface includes the identity of the first communication node.
- the identifier of the first communication node includes at least one of a non-access stratum NAS identifier and a recovery identifier ID.
- the first transmission on the air interface is a paging message; the second transmission on the air interface is at least one of a random access message and a random access prefix; and the third transmission on the air interface is downlink data information and random access. At least one of a response message and a random access prefix response; the fourth transmission on the air interface is at least one of an uplink message and uplink data information.
- the first information is at least one of a broadcast message, a dedicated message, a unicast message, and configuration signaling.
- FIG. 11 shows a schematic structural diagram of another data transmission device provided by an embodiment.
- the data transmission device may be configured in a first communication node. As shown in FIG. 11, it includes a receiving module 30 and a sending module 31.
- the receiving module 30 is configured to receive a third air interface transmission (message 2) sent by the second communication node.
- the air interface third transmission includes at least one of the following features: the air interface third transmission includes downlink data, and the air interface third transmission
- the transmission instructs the first communication node to send large-flow uplink data to the second communication node;
- the sending module 31 is configured to send a fourth air interface transmission (message 3) to the second communication node according to the third air interface transmission, and the fourth air interface
- the transmission triggers a radio resource control RRC connection between the second communication node and the first communication node.
- the data transmission device provided in this embodiment implements the data transmission method of the embodiment shown in FIG. 5, and the implementation principle of the data transmission device provided in this embodiment is similar, and will not be repeated here.
- the fourth transmission on the air interface includes any one of an RRC connection establishment complete message, an RRC connection recovery complete message, and an RRC connection reconfiguration complete message.
- the fourth transmission on the air interface further includes any one of an RRC connection establishment request message, an RRC connection recovery request message, and an RRC connection reconfiguration request message.
- the receiving module 30 is further configured to receive a fifth air interface transmission (message 4) sent by the second communication node.
- the fifth air interface transmission includes an RRC connection establishment message, an RRC connection recovery message, and an RRC connection reconfiguration Any one of the messages;
- the sending module 31 is also set to send the sixth air interface transmission to the second communication node according to the fifth air interface transmission.
- the air interface sixth transmission includes an RRC connection establishment complete message and an RRC connection recovery complete message , Any one of the RRC connection reconfiguration complete messages.
- the fourth transmission on the air interface includes the identity of the first communication node.
- the identifier of the first communication node includes at least one of a non-access stratum NAS identifier and a recovery identifier ID.
- FIG. 12 shows a schematic structural diagram of yet another data transmission device provided by an embodiment.
- the data transmission device may be configured in a second communication node.
- the data transmission device includes a sending module 40 and a receiving module 41.
- the sending module 40 is configured to send an air interface third transmission (message 2) to the first communication node.
- the air interface third transmission includes at least one of the following features: the air interface third transmission includes downlink data, and the air interface third transmission Instruct the first communication node to send large-flow uplink data to the second communication node; the receiving module 41 is configured to receive the air interface fourth transmission (message 3) sent by the first communication node, and the air interface fourth transmission triggers the second communication node to communicate with The radio resource of the first communication node controls the RRC connection.
- the data transmission device provided in this embodiment implements the data transmission method of the embodiment shown in FIG. 6, and the implementation principle of the data transmission device provided in this embodiment is similar, and will not be repeated here.
- the fourth transmission on the air interface includes any one of an RRC connection establishment complete message, an RRC connection recovery complete message, and an RRC connection reconfiguration complete message.
- the fourth transmission on the air interface further includes any one of an RRC connection establishment request message, an RRC connection recovery request message, and an RRC connection reconfiguration request message.
- the sending module 40 is further configured to send a fifth air interface transmission (message 4) to the first communication node.
- the fifth air interface transmission includes an RRC connection establishment message, an RRC connection recovery message, and an RRC connection reconfiguration message
- the receiving module 41 is also set to receive the sixth transmission of the air interface sent by the first communication node.
- the sixth transmission of the air interface includes an RRC connection establishment complete message, an RRC connection recovery complete message, and an RRC connection reconfiguration complete message Any of them.
- the fourth transmission on the air interface includes the identity of the first communication node.
- the identifier of the first communication node includes at least one of a non-access stratum NAS identifier and a recovery identifier ID.
- An embodiment of the present application further provides a data transmission device, including a processor, which is configured to implement the method provided in any embodiment of the present application when the computer program is executed.
- the service transmission device may be the first communication node provided by any embodiment of the application, or may be the second communication node provided by any embodiment of the application, which is not specifically limited in this application.
- the following embodiments respectively provide a schematic structural diagram of a data transmission apparatus as a UE and a base station.
- FIG. 13 shows a schematic structural diagram of a UE provided by an embodiment.
- the UE can be implemented in various forms.
- the UE in this application can include, but is not limited to, mobile phones, smart phones, notebook computers, and digital broadcast receivers. , Personal Digital Assistant (PDA), Tablet PC (Portable Device, PAD), Portable Media Player (PMP), navigation device, vehicle terminal equipment, vehicle display terminal, vehicle electronic rearview mirror, etc.
- Mobile terminal equipment such as digital television (television, TV), desktop computer, etc.
- the UE 50 may include a wireless communication unit 51, an audio/video (A/V) input unit 52, a user input unit 53, a sensing unit 54, an output unit 55, a memory 56, and an interface unit. 57.
- Figure 13 shows a UE including various components, but it should be understood that implementation of all the illustrated components is not required. More or fewer components can be implemented instead.
- the wireless communication unit 51 allows radio communication between the UE 50 and the base station or network.
- the A/V input unit 52 is configured to receive audio or video signals.
- the user input unit 53 may generate key input data according to commands input by the user to control various operations of the UE 50.
- the sensing unit 54 detects the current state of the UE 50, the location of the UE 50, the presence or absence of the user's touch input to the UE 50, the orientation of the UE 50, the acceleration or deceleration movement and direction of the UE 50, and so on, and generates a signal for controlling the UE Command or signal for 50 operations.
- the interface unit 57 is used as an interface through which at least one external device can connect to the UE 50.
- the output unit 55 is configured to provide output signals in a visual, audio, and/or tactile manner.
- the memory 56 may store a software program for processing and control operations executed by the processor 58, etc., or may temporarily store data that has been output or will be output.
- the memory 56 may include at least one type of storage medium.
- the UE 50 can cooperate with a network storage device that performs the storage function of the memory 56 through a network connection.
- the processor 58 generally controls the overall operation of the UE 50.
- the power supply unit 59 receives external power or internal power under the control of the processor 58 and provides appropriate power required to operate various elements and components.
- the processor 58 executes at least one functional application and data processing by running a program stored in the memory 56, for example, to implement the method provided in the embodiment of the present application.
- FIG. 14 shows a schematic structural diagram of a base station provided by an embodiment.
- the base station includes a processor 60, a memory 61, and a communication interface 62; the number of processors 60 in the base station may be one or more 14 takes a processor 60 as an example; the processor 60, the memory 61, and the communication interface 62 in the base station may be connected by a bus or other methods.
- the connection by a bus is taken as an example.
- the bus represents one or more of several types of bus structures, including a memory bus or a memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any bus structure among multiple bus structures.
- the memory 61 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present application.
- the processor 60 executes at least one functional application and data processing of the base station by running software programs, instructions, and modules stored in the memory 61, that is, realizes the above-mentioned data transmission method.
- the memory 61 may include a program storage area and a data storage area.
- the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal, and the like.
- the memory 61 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the memory 61 may include a memory remotely provided with respect to the processor 60, and these remote memories may be connected to the base station through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
- the communication interface 62 can be configured to receive and send data.
- the embodiment of the present application also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
- a computer program is stored on the computer-readable storage medium.
- the computer storage media in the embodiments of the present application may adopt any combination of one or more computer-readable media.
- the computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium.
- the computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the above.
- Computer-readable storage media include (non-exhaustive list): electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (Read-Only Memory) , ROM), erasable programmable read-only memory (erasable programmable Read-Only Memory, EPROM), flash memory, optical fiber, portable compact disc read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical storage devices, Magnetic storage device, or any suitable combination of the above.
- the computer-readable storage medium may be any tangible medium that contains or stores a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.
- the computer-readable signal medium may include a data signal propagated in baseband or as a part of a carrier wave, and the computer-readable program code is carried in the data signal. This propagated data signal can take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
- the computer-readable signal medium may also be any computer-readable medium other than the computer-readable storage medium.
- the computer-readable medium may send, propagate, or transmit the program for use by or in combination with the instruction execution system, apparatus, or device .
- the program code contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
- suitable medium including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
- the computer program code used to perform the operations of the present disclosure can be written in one or more programming languages or a combination of multiple programming languages.
- the programming languages include object-oriented programming languages-such as Java, Smalltalk, C++, Ruby, Go also includes conventional procedural programming languages-such as "C" language or similar programming languages.
- the program code can be executed entirely on the user's computer, partly on the user's computer, executed as an independent software package, partly on the user's computer and partly executed on a remote computer, or entirely executed on the remote computer or server.
- the remote computer can be connected to the user's computer through any kind of network-including Local Area Network (LAN) or Wide Area Network (WAN)-or it can be connected to an external computer (for example, use an Internet service provider to connect via the Internet).
- LAN Local Area Network
- WAN Wide Area Network
- user terminal encompasses any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicle-mounted mobile stations.
- the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
- some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
- the embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware.
- Computer program instructions can be assembly instructions, instruction set architecture (Instruction Set Architecture, ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
- the block diagram of any logical flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
- the computer program can be stored on the memory.
- the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to ROM, random access memory RAM, optical storage devices and systems (Digital Versatile Disc (DVD) Or (Compact Disk, CD) etc.
- Computer readable media may include non-transitory storage media.
- the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FGPA), and processors based on multi-core processor architecture.
- DSP Digital Signal Processing
- ASICs application specific integrated circuits
- FGPA programmable logic devices
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Abstract
本文公开了一种数据传输方法、装置及计算机可读存储介质。该方法包括:第一通信节点接收第二通信节点发送的第一信息,第一信息包括传输资源的配置信息。
Description
本申请要求在2019年08月08日提交中国专利局、申请号为201910731740.5的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
本申请涉及无线通信网络,例如涉及一种数据传输方法、装置及计算机可读存储介质。
随着通信技术的不断发展,物联网标准已经可以高效地支持始呼提前数据传输(Mobile Originated Early Data Transmission,MO-EDT),但是对终呼提前数据传输(Mobile Terminated Early Data Transmission,MT-EDT)还没有完善的数据传输方案。
发明内容
本申请提供一种数据传输方法、装置及计算机可读存储介质,能够优化MT-EDT的信令流程,减小信令开销,保证数据传输的安全性和高效性。
本申请实施例提供一种数据传输方法,包括:
第一通信节点接收第二通信节点发送的第一信息,第一信息包括传输资源的配置信息。
本申请实施例提供一种数据传输方法,包括:
第二通信节点向第一通信节点发送第一信息,第一信息包括传输资源的配置信息。
本申请实施例提供一种数据传输方法,包括:
第一通信节点接收第二通信节点发送的空中接口第三传输(message 2),空中接口第三传输包括以下特征中的至少一项:空中接口第三传输包括下行数据,空中接口第三传输指示第一通信节点向第二通信节点发送大流量上行数据;
第一通信节点根据空中接口第三传输,向第二通信节点发送空中接口第四传输(message 3),空中接口第四传输触发第二通信节点与第一通信节点的无 线资源控制RRC连接。
本申请实施例提供一种数据传输方法,包括:
第二通信节点向第一通信节点发送空中接口第三传输(message 2),空中接口第三传输包括以下特征中的至少一项:空中接口第三传输包括下行数据,空中接口第三传输指示第一通信节点向第二通信节点发送大流量上行数据;
第二通信节点接收第一通信节点发送的空中接口第四传输(message 3),空中接口第四传输触发第二通信节点与第一通信节点的无线资源控制RRC连接。
本申请实施例提供一种数据传输装置,包括:处理器,处理器用于在执行计算机程序时实现上述任一实施例的方法。
本申请实施例还提供了一种计算机可读存储介质,存储有计算机程序,计算机程序被处理器执行时实现上述任一实施例的方法。
关于本申请的以上实施例和其他方面以及其实现方式,在附图说明、具体实施方式和权利要求中提供更多说明。
图1为一实施例提供的MT-EDT的基本流程示意图;
图2为一实施例提供的一种数据传输方法的流程示意图
图3为一实施例提供的另一种数据传输方法的流程示意图;
图4为一实施例提供的又一种数据传输方法的流程示意图;
图5为一实施例提供的再一种数据传输方法的流程示意图;
图6为一实施例提供的还一种数据传输方法的流程示意图;
图7为一实施例提供的一种终端触发的MT-EDT回退流程的流程示意图;
图8为一实施例提供的另一种终端触发的MT-EDT回退流程的流程示意图;
图9为一实施例提供的一种数据传输装置的结构示意图;
图10为一实施例提供的另一种数据传输装置的结构示意图;
图11为一实施例提供的又一种数据传输装置的结构示意图;
图12为一实施例提供的再一种数据传输装置的结构示意图;
图13为一实施例提供的一种UE的结构示意图;
图14为一实施例提供的一种基站的结构示意图。
下文中将结合附图对本申请的实施例进行说明。
在版本15(Release 15,Rel-15)物联网标准中(例如窄带物联网(Narrow Band Internet of Things,NB-IoT)、增强机器类通信(enhanced Machine Type Communication,eMTC)等),目前已经支持高效地上行小数据包传输(如MO-EDT)。即终端可以直接将上行小数据封装在随机接入过程的上行信令中发送给网络,终端与网络完成冲突解决即认为数据传输成功。终端与网络间无需建立无线连接,终端始终维持在空闲状态。
在Rel-16物联网标准中,正在讨论引入新的MT-EDT功能,该功能主要针对于下行小数据包传输为主的物联网应用或业务。图1示出了一实施例提供的MT-EDT的基本流程示意图。如图1所示,MT-EDT的基本流程主要包括下述步骤:
步骤1、(终端处于RRC_idle(RRC空闲)状态时(终端在不活动定时器超时后就会进入RRC_idle状态))基站(如图1所示的演进型节点B(evolutional NodeB,eNB))收到核心网设备(如图1所示的移动性管理实体(Mobility Management Entity,MME),MME是基于服务网关(Serving GateWay,S-GW)发送的数据通知触发的寻呼消息)发来的寻呼消息(S1Paging)后,确定需要触发MT-EDT流程。基站通过空中接口向终端(如图1所示的用户设备(User Equipment,UE))发送空中接口第一传输(即寻呼消息),寻呼消息中携带终端专用(即非竞争)的随机接入资源以及用于识别终端上下行传输的终端专用无线网络临时标识(Radio Network Tempory Identity,RNTI)的相关信息。
步骤2、终端根据非竞争随机接入资源的相关信息获知非竞争随机接入资源,并向基站发送空中接口第二传输,即使用非竞争随机接入资源来发送随机接入前缀,可以最大限度地减少终端之间的冲突。
步骤3、基站收到终端在非竞争随机接入资源上发送的随机接入前缀后,触 发相关流程向核心网索要终端的下行数据(DL Data),之后基站向终端发送空中接口第三传输(即包含下行数据的下行传输),该下行传输用终端专用RNTI加扰。该下行传输中可进一步包含针对该终端的更新的定时提前量信息。
步骤4、终端收到下行数据后,向基站发送空中接口第四传输(即用终端专用RNTI加扰的上行传输)。该上行传输中可以包含终端针对所接收到的下行数据的上行物理层确认,或媒体接入控制(Media Access Control,MAC)层确认,或无线资源控制(Radio Resource Control,RRC)层确认,或应用层确认。
然而,在上述图1所示的MT-EDT的基本流程中,主要存在以下五个问题:
问题1
在空中接口第一传输中,通常会在一个寻呼消息中包含针对多个终端的寻呼记录。如果针对一个终端的寻呼记录中需要携带完整的非竞争随机接入资源相关信息和终端专用RNTI的相关信息,会占用数十比特甚至更多,这会导致寻呼消息能够容纳的寻呼记录减少,进而导致寻呼容量降低。
一些常见的可用于优化寻呼记录所携带信息的方案包括:
方案1-1:对于eMTC终端,在寻呼消息中携带由基站分配的固定长度的(例如3-4比特)、针对非竞争随机接入资源中的接入前缀的专用偏移量。终端在最大的竞争随机接入前缀上叠加这个专用偏移量来获取到专用的非竞争随机接入前缀,即CF preamble=numberOfRA-Preambles+preamble index。该专用偏移量的取值范围决定了能够支持的非竞争随机接入的最大数量。基站可以尽量保证为同时使用MT-EDT功能的不同终端分配不同的专用偏移量,且保证终端计算得到的非竞争随机接入前缀不与因其他功能(例如物理层下行控制信道指令(Physical Downlink Control Channel order,PDCCH order)触发的非竞争随机接入)使用非竞争随机接入资源的终端的随机接入前缀冲突。
方案1-2:对于eMTC终端,为了进一步节省寻呼消息中携带的3-4比特专用偏移量,也可以由终端自己计算得到该针对非竞争随机接入资源中的接入前缀的专用偏移量,例如用终端的标识(UE_ID)来取模专用偏移量的最大个数,即CF preamble=numberOfRA-Preambles+UE_ID mod(64-numberOfRA-Preambles)。但是该方案存在的问题是:同时使用MT-EDT功能的不同终端有可能取模得到相同的专用偏移量,导致出现不期望的冲突,且这个 由终端自己计算得到的专用偏移量也无法保证最终得到的随机接入前缀不与因其他功能(例如PDCCH order触发的非竞争随机接入)使用非竞争随机接入资源的终端的随机接入前缀冲突。
考虑到方案1-2存在的问题,可以使用方案1-1。但是因为非竞争随机接入前缀是在多个功能之间共享的,固定长度的偏移量难以兼顾避免使用本功能终端之间的冲突和避免本功能与其他功能终端之间的冲突这两种需求。一般来说,为了减少使用本功能的终端之间的冲突,希望偏移量的长度或取值范围越大越好,但这样会导致其他功能可使用的偏移量偏少,而且如果使用本功能的终端较少,则可能出现资源浪费,且寻呼消息中携带固定长度的专用偏移量也会造成不必要的信令开销。
此外,前述常见方案1-1主要针对eMTC终端使用MT-EDT功能时空中接口第一传输的信令开销进行优化。对于配置了多载波的NB-IoT系统,参考PDCCH order触发的非竞争随机接入功能可知,其非竞争随机接入资源中还需包含基站指配的初始载波序号以及该载波上的初始子载波序号,如果将该载波序号(4比特)和子载波序号(6比特)包含在寻呼信令的非竞争随机接入资源相关信息中,会有10比特开销。尚无针对此开销进行优化的方案提出。
问题2
在空中接口第一传输中,基站会在寻呼消息中携带终端专用(即非竞争)的随机接入资源以及用于识别终端上下行传输的终端专用RNTI的相关信息。我们已知对于eMTC和NB-IoT系统,其随机接入资源是按照覆盖等级(或传输重复次数)来配置的,即不同覆盖等级会对应不同的随机接入资源。由于基站无法准确获知空闲态终端所处覆盖等级,基站很可能会选择与最大覆盖等级或终端上次释放连接时所使用的覆盖等级对应的随机接入资源并放在寻呼消息中发给终端,如果终端移动到覆盖条件非常好或相比上次连接释放时覆盖条件有变化的区域,则终端使用该随机接入资源很可能会造成浪费。
针对上述问题常见的优化方法是,基站为终端配置多套专用随机接入资源,以便终端根据实际所处的覆盖情况选用最合适的资源,基站通过盲检获知终端实际使用的资源。但是考虑到在寻呼消息中携带多套随机接入资源会造成更大的信令开销,且对于静止终端其覆盖等级通常不会变化,此时提供两套或多套 针对不同覆盖等级的随机接入资源,在一些场景下会造成资源浪费和不必要的信令开销。
问题3
在上述MT-EDT的基本流程中,基站收到终端在非竞争随机接入资源上发送的随机接入前缀后,触发相关流程向核心网索要终端的下行数据,之后基站向终端发送空中接口第三传输,即包含下行数据的下行传输。终端发送随机接入前缀之后接收空中接口第三传输,类似于传统随机接入过程中终端发送完随机接入前缀后接收随机接入响应消息(Random Access Response,RAR),但又存在以下不同:
终端在发送完随机接入前缀之后间隔较短时间(固定长度的子帧数,例如3个子帧)即开始监听RAR,但对于MT-EDT功能,由于基站需要从核心网获取数据后才能发送空中接口第三传输,如果终端在上次连接释放后移动到新的小区,终端在新的基站发送随机接入前缀,上述数据获取过程还可能包含新基站向旧基站获取终端上下文的过程,导致基站发送空中接口第三传输进一步延迟。为避免无谓的监听造成耗电,终端发送随机接入前缀结束后,最好等待一段时间再开始监听空中接口第三传输。
另外,在传统随机接入过程中,由于RAR消息较短,且为了避免监听由随机接入无线网络临时标识(Random Access-Radio Network Temporary Identifier,RA-RNTI)加扰的RAR消息的多个终端之间发生冲突,终端需要在一定长度的RAR消息接收窗(RAR window)内接收RAR消息。而MT-EDT功能中,空中接口第三传输因包含下行数据,很可能会比RAR消息大很多,因此原有的RAR消息监听窗也不再适用于终端对空中接口第三传输的接收。
针对上述问题常见的优化方法是,为终端配置扩展的RAR响应接收窗用于确定接收空中接口第三传输所需的时长,以及配置新的相对于空中接口第二传输结束的偏移量用于确定接收空中接口第三传输的起始位置。通常,这些扩展接收窗和偏移量应通过广播信令进行配置。但是考虑到终端状态的变化,一套固定的扩展接收窗和偏移量配置无法满足不同的场景需要。
问题4
在上述MT-EDT的基本流程中,基站收到终端在非竞争随机接入资源上发 送的随机接入前缀后,触发相关流程向核心网索要终端的下行数据,之后基站向终端发送空中接口第三传输,即包含下行数据的下行传输。终端收到下行数据后传递给其应用层,应用层有可能通知终端需要传递上行数据作为对所接收下行数据的确认或应答。例如在一些应用中,下行数据可能是一个网络命令,触发终端上报存储的操作数据、异常报告等信息,这些信息有可能较大。
一般的,网络可以在空中接口第三传输中包含上行授权,以便终端在空中接口第四传输中直接包含少量数据,或发送缓冲区状态报告以便申请更大的上行授权。但是在前述终端可能存在较大上行数据作为对收到的下行数据的应答的场景下,采用上述方式的效率较低。
相关技术的MO-EDT标准中另外支持网络侧根据终端是否上报释放辅助信息(即指示终端是否有缓存的上行数据需要发送)以及网络侧是否有缓存数据,来决定是否将MO-EDT流程回退到普通的连接建立过程,即网络侧控制将终端转移到连接态,并在连接态传递更多的业务数据。在该流程中,终端通常伴随第一条上行RRC消息向网络发送接入层(Access Stratum,AS)或非接入层(Non-Access Stratum,NAS)释放辅助信息,网络可以利用第一条下行RRC消息将终端回退到连接态。在MT-EDT相关讨论中也提及类似方案。如果网络在发送空中接口第三传输之前,获知有更多下行数据需要发送给终端,则网络侧可以在发送空中接口第三传输时发送下行RRC消息将终端回退到连接态。但该流程无法应用到前述终端在收到空中接口第三传输后进一步发现有较大上行数据需要传输的情况。
问题5
在上述MT-EDT的基本流程中,所有终端都可以接收空中接口第一传输,解析寻呼消息及其包含的寻呼记录。这里有可能存在恶意的伪终端,利用针对目标终端的寻呼记录中提供的专用随机接入资源相关信息向基站发送专用随机接入前缀。基站收到随机接入前缀后,无法识别其是否来自真正的目标终端,基站会根据收到的随机接入前缀估计上行定时提前(Timing Advance,TA),向核心网获取针对终端的下行业务数据,并将这些内容包含在空中接口第二传输中发给终端。
对于用户面蜂窝物联网(Cellular Internet of Things,CIoT)演进的包系统 (Evolved PacketSystem,EPS)优化(user plane CIoT EPSoptimization,UP)方案,基站会获取终端的安全密钥并对下行业务数据做AS层加密。上述空中接口第二传输仍然可以被伪终端接收,但其中的业务数据由于做了NAS层加密(对控制面CIoT EPS优化(control plane CIoT EPS optimization,CP)方案)或AS层加密,伪终端无法解析。由于上述伪终端存在,如果只是要求终端收到空中接口第二传输后发送物理层或MAC层确认,尽管伪终端无法解析下行业务数据,但仍然可以伪造上行确认,导致基站或核心网错误地判断数据已被目标终端收到。
为了确保基站及核心网能够准确判断业务数据送达目标终端,一些常见的优化方案包括:对于CP方案,终端应发送上行NAS协议数据单元(Protocol Data Unit,PDU)(包含NAS信令或NAS数据)以便在NAS层对终端确认进行校验,对于UP方案,终端应发送经过加密的上行RRC信令以便在AS层对终端确认进行校验。但上述方案存在的问题在于,对于CP方案,有可能需要定义新的NAS信令,对于UP方案,该上行RRC信令有可能需要进一步的下行RRC信令来确认,造成不必要的信令负荷,导致该方案相对传统数据传输方案的优势被进一步降低。
本申请实施例提供了一种移动通信网络(包括但不限于第五代移动通信网络(5th-Generation,5G)),该网络的网络架构可以包括网络侧设备(例如一种或多种类型的基站,传输节点,接入节点(AP,Access Point),中继,节点B(Node B,NB),陆地无线电接入(UTRA,Universal Terrestrial Radio Access),演进型陆地无线电接入(EUTRA,Evolved Universal Terrestrial Radio Access)等),终端(用户设备(User Equipment,UE),用户设备数据卡和中继(relay),移动设备等)。在本申请实施例中,提供一种可运行于上述网络架构上的数据传输方法、装置及计算机可读存储介质,能够优化MT-EDT的信令流程,减小信令开销,保证数据传输的安全性和高效性。
下面,对数据传输方法、装置进行描述。
图2示出了一实施例提供的一种数据传输方法的流程示意图,如图2所示,本实施例提供的方法适用于第一通信节点,第一通信节点可以为终端(如UE、移动设备等),该方法包括如下步骤:
S110、第一通信节点接收第二通信节点发送的第一信息,第一信息包括传输资源的配置信息。
传输资源的配置信息包括以下信息中的至少一项:
专用资源的偏移量配置信息;非竞争随机接入资源的频域资源信息;监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;非竞争随机接入资源的频域资源信息的偏移量配置信息;非竞争随机接入资源的时域资源信息的偏移量配置信息;针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;随机接入资源的使用方式信息。
在一实施例中,图3示出了一实施例提供的另一种数据传输方法的流程示意图,如图3所示,除包括上述步骤S110外,还可以包括如下步骤:
S120、第一通信节点获取处于传输资源的配置信息范围内的传输资源偏移量offset。
传输资源的配置信息包括传输资源偏移量的长度和取值范围参数中的至少一项,即处于传输资源的配置信息范围内的传输资源偏移量offset为不大于传输资源偏移量的长度和取值范围参数的传输资源偏移量offset。
传输资源包括以下资源中的至少一项:随机接入资源,竞争随机接入资源,非竞争随机接入资源,上行传输授权资源,下行传输调度资源,免调度资源,免调度上行传输资源,免调度下行传输资源,随机接入资源中的随机接入前缀,终端指定的C-RNTI;其他类型的RNTI。
第一通信节点获取传输资源偏移量offset的方法包括以下两种方法中的至少一项:
方法1、第一通信节点接收第二通信节点在广播消息或专用消息中发送的处于传输资源的配置信息范围内的传输资源偏移量offset(该偏移量的取值可为正数,零或负数)。
方法2、第一通信节点基于终端标识或所在小区标识确定处于传输资源的配置信息范围内的传输资源偏移量offset(例如,终端可以基于一个终端特征ID对该传输资源偏移量的长度或取值范围取模来获取传输资源偏移量)。
S130、第一通信节点确定传输资源的起始位置X,并在起始位置X上叠加 传输资源偏移量offset,得到实际使用的传输资源位置(X+offset)。
起始位置X是基于终端标识和小区标识中的至少一项确定的。
该实施例可用于确定传输资源位置,以使得第一通信节点在传输资源位置上发送后续的消息(例如空中接口第二传输等)。
在一实施例中,针对问题1,传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量配置信息包括专用资源的偏移量的长度和取值范围参数中的至少一项;方法还包括如下三个步骤:
步骤1、第一通信节点根据专用资源的偏移量的长度和取值范围参数中的至少一项,确定专用资源的偏移量的有效值。
步骤2、第一通信节点根据专用资源的偏移量的有效值,确定专用资源。
步骤3、在接收第二通信节点发送的空中接口第一传输(消息0(message 0))后,第一通信节点根据专用资源,向第二通信节点发送空中接口第二传输(message 1)。
传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量配置信息包括针对不同功能的第一通信节点的至少两套专用资源的偏移量配置信息,每套专用资源的偏移量配置信息均包括专用资源的偏移量的长度和取值范围参数中的至少一项。
使用专用资源的功能为以下功能中的至少一项:切换(handover)、PDCCH order、提前数据传输(Early Data Transmission,EDT)、MO-EDT、MT-EDT;功能是专用资源的偏移量配置信息的内容之一。
专用资源包括:非竞争随机接入资源、专用随机接入资源、专用终端标识中的至少一项。
非竞争随机接入资源或者专用随机接入资源包括以下参数中的至少一项:eMTC系统中的随机接入前缀;NB-IoT系统中的随机接入频域资源中的载波序号、子载波序号;随机接入时域资源;新无线接入技术(New Radio,NR)系统中基于单边带(Single Side Band,SSB)的随机接入资源(如每个随机接入时机的SSB个数或每个SSB上的随机接入前缀等)。
专用终端标识包括以下参数中的至少一项:终端指定的小区无线网络临时 标识(Cell-Radio Network Tempory Identity,C-RNTI);其他类型的RNTI。
在一实施例中,针对问题1,在多载波NB-IoT系统中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息,非竞争随机接入资源的频域资源信息包括初始载波列表和初始子载波列表中的至少一项;初始载波列表包括N个载波,初始子载波列表包括T个子载波,N、T为正整数;方法还包括以下两种方法中的至少一项:
方法1、第一通信节点根据当前时刻监听空中接口第一传输的载波序号对N取模,确定非竞争随机接入资源的初始载波序号;在接收第二通信节点发送的空中接口第一传输后,第一通信节点根据非竞争随机接入资源的初始载波序号,向第二通信节点发送空中接口第二传输。
方法2、第一通信节点根据当前时刻监听空中接口第一传输的子载波序号对T取模,确定非竞争随机接入资源的初始子载波序号;在接收第二通信节点发送的空中接口第一传输后,第一通信节点根据非竞争随机接入资源的初始子载波序号,向第二通信节点发送空中接口第二传输。
在一实施例中,针对问题1,在多载波NB-IoT系统中,传输资源的配置信息包括监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;方法还包括如下两个步骤:
步骤1、第一通信节点根据当前时刻监听空中接口第一传输的载波与监听空中接口第一传输的资源和非竞争随机接入资源的映射关系,确定非竞争随机接入资源。
步骤2、在接收第二通信节点发送的空中接口第一传输后,第一通信节点根据非竞争随机接入资源,向第二通信节点发送空中接口第二传输,非竞争随机接入资源至少包括非竞争随机接入资源的初始载波序号和初始子载波序号中的至少一项。
在一实施例中,针对问题1,在多载波NB-IoT系统中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息的偏移量配置信息,非竞争随机接入资源的频域资源信息的偏移量配置信息包括N个载波,N为正整数;若每个载波i上配置了m
i个子载波资源,则将这些载波上的子载波资源排列在一起(例如采用级联方式或一种组合方式),可得到一组可用于非竞争随机接入的非竞 争随机接入资源的初始频域资源组,该资源组包括M个资源,
方法还包括如下步骤:
在接收第二通信节点发送的空中接口第一传输后,第一通信节点根据非竞争随机接入资源的初始频域资源,向第二通信节点发送空中接口第二传输;非竞争随机接入资源的初始频域资源采用以下方法中的至少一种得到:第一通信节点根据非竞争随机接入资源的频域资源信息的偏移量配置信息,确定非竞争随机接入资源的频域资源信息的偏移量;第一通信节点根据非竞争随机接入资源的频域资源信息的偏移量,从非竞争随机接入资源的初始频域资源组中得到非竞争随机接入资源的初始频域资源;第一通信节点根据终端标识对M取模,确定非竞争随机接入资源的初始频域资源;当空中接口第一传输的载波数量大于M时,第一通信节点根据当前时刻监听空中接口第一传输的载波序号对M取模,确定非竞争随机接入资源的初始频域资源;当空中接口第一传输的载波数量小于M时,第一通信节点根据非竞争随机接入资源的初始频域资源组中的每个资源序号对监听空中接口第一传输的载波数量取模,确定非竞争随机接入资源的初始频域资源。
相当于将多个非竞争初始频域资源映射到一个寻呼载波。第一通信节点另外接收空中接口第一传输中携带的非竞争初始频域资源对应的偏移量,根据该偏移量第一通信节点可以从与当前监听的寻呼载波对应的多个非竞争初始频域资源里得到一个确定的非竞争初始频域资源。
第一通信节点根据得到的确定的非竞争初始频域资源以及资源的排列方式来提取出用于非竞争随机接入的初始载波序号以及该载波上的初始子载波序号。
在一实施例中,针对问题2,传输资源的配置信息包括随机接入资源的使用方式信息;随机接入资源的使用方式信息包括以下信息中的至少一项:
每个随机接入资源的使用方式信息对应一套随机接入资源;随机接入资源的使用方式信息用于标记随机接入资源的覆盖等级;随机接入资源的使用方式信息用于标记第一通信节点使用随机接入资源发送空中接口第二传输之后的上行传输的特征;方法还包括如下步骤:
在接收第二通信节点发送的空中接口第一传输后,第一通信节点选择一套 随机接入资源,向第二通信节点发送空中接口第二传输。
多套随机接入资源配置所占用的信令开销能够用于提供尽可能多的信息,例如不同的随机接入资源可用于区分第一通信节点在收到下行数据后是否需要在空中接口第四传输中发送额外的上行数据。
在该实施例中,网络将第一通信节点的特征信息(例如基于订阅的用户差异化信息(Subscription Based UE Differentiation Information))或状态信息在寻呼消息中带给第二通信节点,或第二通信节点在上次连接释放时将一些终端特征信息或状态信息存储在该第一通信节点的接入层上下文中。收到核心网发来的寻呼消息后,第二通信节点在寻呼消息中携带多套随机接入资源的相关信息给第一通信节点,第二通信节点根据特征信息或状态信息判断第一通信节点的类型,并根据第一通信节点的类型来标记多套随机接入资源的使用方式。
在一实施例中,针对问题3,传输资源的配置信息包括针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;每套下行传输接收定时器配置信息包括类型信息、定时器长度和定时器起始位置偏移量中的至少一种;类型信息用于指示第一通信节点的状态为静止或非静止,或者用于指示第一通信节点是始终处于一个小区或者是从其他小区移动而来;定时器起始位置偏移量设置为相对于第一通信节点之前上行传输结束位置的偏移量。
下行传输接收定时器配置信息可以作为基准配置,第二通信节点可以进一步将不同的基准配置扩展为针对不同覆盖等级的配置,本申请对此不作具体限制。
在一实施例中,针对问题5,方法还包括如下两个步骤:
步骤1、第一通信节点接收第二通信节点发送的空中接口第三传输(message 2)。
步骤2、第一通信节点向第二通信节点发送空中接口第四传输(message 3),空中接口第四传输包括第一通信节点的标识。
第一通信节点的标识包括NAS标识(例如临时移动用户标识(Serving-Temporary Mobile Subscriber Identity,S-TMSI)和恢复ID(例如ResumeID)中的至少一项。第一通信节点的标识用于第二通信节点校验目标第一通信节点。
第二通信节点收到该第一通信节点的标识后,将该标识和所保存的与寻呼消息关联的第一通信节点标识进行比对,如果一致则认为该空中接口第四传输来自目标第一通信节点。在该实施例中,由于没有引入新的上行NAS信令或RRC信令,因此可以避免额外的下行NAS或RRC确认信令,节省信令开销。
第一通信节点标识可以包含在上行媒体接入控制元件(Media Access Control control element,MAC CE)中,也可以附加在上行业务数据中(例如应用层发送的用于对下行业务数据进行确认的上行业务数据)。
上述实施例中提到的空中接口第一传输可以为寻呼消息;空中接口第二传输可以为随机接入消息和随机接入前缀中的至少一种;空中接口第三传输可以为下行数据信息、随机接入响应消息、随机接入前缀响应中的至少一种;空中接口第四传输可以为上行消息和上行数据信息中的至少一种。
第一信息可以为广播消息、专用消息、单播消息、配置信令中的至少一种。
图4示出了一实施例提供的又一种数据传输方法的流程示意图,如图4所示,本实施例提供的方法适用于第二通信节点,第二通信节点可以为基站(如eNB、AP等),该方法包括如下步骤。
S210、第二通信节点向第一通信节点发送第一信息,第一信息包括传输资源的配置信息。
传输资源的配置信息包括以下信息中的至少一项:
专用资源的偏移量配置信息;非竞争随机接入资源的频域资源信息;监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;非竞争随机接入资源的频域资源信息的偏移量配置信息;非竞争随机接入资源的时域资源信息的偏移量配置信息;针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;随机接入资源的使用方式信息。
在一实施例中,针对问题1,传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量配置信息包括专用资源的偏移量的长度和取值范围参数中的至少一项;方法还包括如下步骤:在向第一通信节点发送空中接口第一传输(message 0)后,第二通信节点接收第一通信节点根据专用资源发送的空中接口第二传输(message 1)。
传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量 配置信息包括针对不同功能的第一通信节点的至少两套专用资源的偏移量配置信息,每套专用资源的偏移量配置信息均包括专用资源的偏移量的长度和取值范围参数中的至少一项。
使用专用资源的功能为以下功能中的至少一项:切换(handover)、PDCCH order、提前数据传输(Early Data Transmission,EDT)、MO-EDT、MT-EDT;功能是专用资源的偏移量配置信息的内容之一。
专用资源包括:非竞争随机接入资源、专用随机接入资源、专用终端标识中的至少一项。
非竞争随机接入资源或者专用随机接入资源包括以下参数中的至少一项:eMTC系统中的随机接入前缀;NB-IoT系统中的随机接入频域资源中的载波序号、子载波序号;随机接入时域资源;NR系统中基于SSB的随机接入资源(如每个随机接入时机的SSB个数或每个SSB上的随机接入前缀等)。
专用终端标识包括以下参数中的至少一项:终端指定的C-RNTI;其他类型的RNTI。
在一实施例中,针对问题1,在多载波NB-IoT系统中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息,非竞争随机接入资源的频域资源信息包括初始载波列表和初始子载波列表中的至少一项;初始载波列表包括N个载波,初始子载波列表包括T个子载波,N、T为正整数;
方法还包括以下两种方法中的至少一项:
方法1、在向第一通信节点发送空中接口第一传输后,第二通信节点接收第一通信节点根据非竞争随机接入资源的初始载波序号发送的空中接口第二传输。
方法2、在向第一通信节点发送空中接口第一传输后,第二通信节点接收第一通信节点根据非竞争随机接入资源的初始子载波序号发送的空中接口第二传输。
在一实施例中,针对问题1,在多载波NB-IoT系统中,传输资源的配置信息包括监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;方法还包括如下步骤:
在向第一通信节点发送空中接口第一传输后,第二通信节点接收第一通信节点根据非竞争随机接入资源发送的空中接口第二传输,非竞争随机接入资源至少包括非竞争随机接入资源的初始载波序号和初始子载波序号中的至少一项。
在一实施例中,针对问题1,在多载波NB-IoT系统中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息的偏移量配置信息,非竞争随机接入资源的频域资源信息的偏移量配置信息包括N个载波,N为正整数;若每个载波i上配置了m
i个子载波资源,则非竞争随机接入资源的初始频域资源组包括M个资源,
方法还包括如下步骤:
在向第一通信节点发送空中接口第一传输后,第二通信节点接收第一通信节点根据非竞争随机接入资源的初始频域资源发送的空中接口第二传输。
在一实施例中,针对问题2,传输资源的配置信息包括随机接入资源的使用方式信息;随机接入资源的使用方式信息包括以下信息中的至少一项:
每个随机接入资源的使用方式信息对应一套随机接入资源;随机接入资源的使用方式信息用于标记随机接入资源的覆盖等级;随机接入资源的使用方式信息用于标记第一通信节点使用随机接入资源发送空中接口第二传输之后的上行传输的特征;方法还包括如下步骤:
在向第一通信节点发送空中接口第一传输后,第二通信节点接收第一通信节点根据选择的一套随机接入资源发送的空中接口第二传输。
在一实施例中,针对问题3,传输资源的配置信息包括针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;每套下行传输接收定时器配置信息包括类型信息、定时器长度和定时器起始位置偏移量中的至少一种;
类型信息用于指示第一通信节点的状态为静止或非静止,或者用于指示第一通信节点是始终处于一个小区或者是从其他小区移动而来;定时器起始位置偏移量设置为相对于第一通信节点之前上行传输结束位置的偏移量。
在一实施例中,针对问题5,方法还包括如下两个步骤:
步骤1、第二通信节点向第一通信节点发送空中接口第三传输(message 2)。
步骤2、第二通信节点接收第一通信节点发送的空中接口第四传输(message 3),空中接口第四传输包括第一通信节点的标识。
第一通信节点的标识包括NAS标识(例如S-TMSI)和恢复ID(例如ResumeID)中的至少一项。第一通信节点的标识用于第二通信节点校验目标第一通信节点。
上述实施例中提到的空中接口第一传输可以为寻呼消息;空中接口第二传输可以为随机接入消息和随机接入前缀中的至少一种;空中接口第三传输可以为下行数据信息、随机接入响应消息、随机接入前缀响应中的至少一种;空中接口第四传输可以为上行消息和上行数据信息中的至少一种。
第一信息可以为广播消息、专用消息、单播消息、配置信令中的至少一种。
图5示出了一实施例提供的再一种数据传输方法的流程示意图,如图5所示,本实施例提供的方法适用于第一通信节点,第一通信节点可以为终端(如UE、移动设备等),该方法主要针对问题4,该方法包括如下步骤。
S310、第一通信节点接收第二通信节点发送的空中接口第三传输(message 2),空中接口第三传输包括以下特征中的至少一项:空中接口第三传输包括下行数据,空中接口第三传输指示第一通信节点向第二通信节点发送大流量上行数据。
S320、第一通信节点根据空中接口第三传输,向第二通信节点发送空中接口第四传输(message 3),空中接口第四传输触发第二通信节点与第一通信节点的无线资源控制RRC连接。
即第一通信节点在空中接口第四传输中发起回退流程,触发第二通信节点与第一通信节点的无线资源控制RRC连接。
由于第一通信节点在空中接口第二传输中已使用专用随机接入资源进行接入,因此在第一通信节点发起的回退流程信令中不再需要包含冲突解决相关信息。其次,由于第一通信节点与第二通信节点之间已经存在数据传输通道(对CP方案,至少可以使用信令资源承载(Signal Resource Bearers,SRB)0或建立并使用SRB1用于数据传输,对UP方案,可以使用已激活的数据资源承载(Data Resource Bearers,DRB)用于数据传输),也无需触发SRB或DRB的配置过程。最后,由于第二通信节点与网络间接口已经存在,则第二通信节点收到用于完成RRC连接建立或恢复或重配置的消息后,也不再需要触发S1接 口建立或恢复的流程。
在一实施例中,空中接口第四传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,空中接口第四传输还包括RRC连接建立请求消息、RRC连接恢复请求消息、RRC连接重配置请求消息中的任意一种。方法还包括如下两个步骤:
步骤1、第一通信节点接收第二通信节点发送的空中接口第五传输(message 4),空中接口第五传输包括RRC连接建立消息、RRC连接恢复消息、RRC连接重配置消息中的任意一种。
步骤2、第一通信节点根据空中接口第五传输,向第二通信节点发送空中接口第六传输,空中接口第六传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,针对问题5,空中接口第四传输包括第一通信节点的标识。第一通信节点的标识包括NAS标识(例如S-TMSI)和恢复ID(例如ResumeID)中的至少一项。第一通信节点的标识用于第二通信节点校验目标第一通信节点。
第二通信节点收到该第一通信节点的标识后,将该标识和所保存的与寻呼消息关联的第一通信节点标识进行比对,如果一致则认为该空中接口第四传输来自目标第一通信节点。在该实施例中,由于没有引入新的上行NAS信令或RRC信令,因此可以避免额外的下行NAS或RRC确认信令,节省信令开销。
图6示出了一实施例提供的还一种数据传输方法的流程示意图,如图6所示,本实施例提供的方法适用于第二通信节点,第二通信节点可以为基站(如eNB、AP等),该方法主要针对问题4,该方法包括如下步骤。
S410、第二通信节点向第一通信节点发送空中接口第三传输(message 2),空中接口第三传输包括以下特征中的至少一项:空中接口第三传输包括下行数据,空中接口第三传输指示第一通信节点向第二通信节点发送大流量上行数据。
S420、第二通信节点接收第一通信节点发送的空中接口第四传输(message 3),空中接口第四传输触发第二通信节点与第一通信节点的无线资源控制RRC连接。
即第一通信节点在空中接口第四传输中发起回退流程,触发第二通信节点与第一通信节点的无线资源控制RRC连接。
在一实施例中,空中接口第四传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,空中接口第四传输还包括RRC连接建立请求消息、RRC连接恢复请求消息、RRC连接重配置请求消息中的任意一种。方法还包括如下两个步骤:
步骤1、第二通信节点向第一通信节点发送空中接口第五传输(message 4),空中接口第五传输包括RRC连接建立消息、RRC连接恢复消息、RRC连接重配置消息中的任意一种。
步骤2、第二通信节点接收第一通信节点发送的空中接口第六传输,空中接口第六传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,针对问题5,空中接口第四传输包括第一通信节点的标识。第一通信节点的标识包括NAS标识(例如S-TMSI)和恢复ID(例如ResumeID)中的至少一项。第一通信节点的标识用于第二通信节点校验目标第一通信节点。
下面以第一通信节点为终端、第二通信节点为基站为例,罗列一些示例性实施方式,用于说明本申请实施例提供的数据传输方法。
在第一个示例性实施方式中,终端接收网络在系统消息中配置的用于MT-EDT功能的非竞争随机接入前缀偏移量的长度或取值范围参数。当使用MT-EDT功能的终端较少时,可以对该偏移量设置较短长度或取值范围,例如2比特,占用寻呼信令开销小;当使用MT-EDT功能的终端较多时,可以对该偏移量设置较大长度或取值范围,例如5比特,以便支持更多终端的非竞争随机接入。根据配置的非竞争随机接入前缀偏移量的长度或取值范围参数,基于前述方案1-1,基站可以在寻呼信令中包含不大于该长度或取值范围的为不同终端分配的不同非竞争随机接入前缀偏移量,终端基于非竞争随机接入前缀的起始值或基准值(例如竞争随机接入前缀最大值加1)以及该非竞争随机接入前缀偏移量来得到实际应使用的非竞争随机接入前缀。或者,基于前述方案1-2,终端可以基于一个终端特征ID对该长度或取值范围参数取模来获取自己使用的非竞 争随机接入前缀偏移量。
在第二个示例性实施方式中,终端接收网络在系统消息中配置的用于多个功能(如MT-EDT功能和PDCCH order触发的随机接入功能)的多个非竞争随机接入前缀偏移量的长度或取值范围参数;或者网络将所有可用的非竞争随机接入前缀偏移量分段并提供给不同功能。例如为MT-EDT功能分配4个比特的非竞争随机接入前缀偏移量长度,为PDCCH order功能分配2个比特的非竞争随机接入前缀偏移量长度。基站可以在寻呼信令中或PDCCH order信令中包含不大于与相应功能对应的偏移量长度或取值范围参数的为不同终端分配的不同非竞争随机接入前缀偏移量。或者,基于前述方案1-2,终端可以基于一个终端特征ID对与相应功能对应的长度或取值范围取模来获取自己使用的非竞争随机接入前缀偏移量。
在第三个示例性实施方式中,终端接收网络在系统消息中配置的用于MT-EDT功能的专用C-RNTI偏移量的长度或取值范围参数和专用C-RNTI的起始值中的至少一项。基站可以在寻呼信令中包含不大于该长度或取值范围参数的为不同终端分配的专用C-RNTI偏移量,终端基于专用C-RNTI的起始值(由基站配置或根据其他RNTI范围推导得出)以及该专用C-RNTI偏移量来得到实际应使用的专用C-RNTI。或者,终端可以基于一个终端特征ID对该专用C-RNTI偏移量的长度或取值范围取模来获取自己使用的专用C-RNTI偏移量。
在第四个示例性实施方式中,终端接收网络在系统消息中配置的用于多个功能的多个专用C-RNTI偏移量的长度或取值范围参数。或网络将所有可用的专用C-RNTI偏移量分段并提供给不同功能。
在第五个示例性实施方式中,基站在寻呼消息中携带多套随机接入资源的相关信息给终端,每套随机接入资源的相关信息中可以包含该随机接入资源的使用方式信息。
在收到核心网发来的寻呼消息后,基站根据特征信息或状态信息判断是否为移动终端。如果终端为移动终端,则基站在寻呼消息中携带多套随机接入资源的相关信息给终端,且利用该使用方式信息,标记该多套随机接入资源对应不同覆盖等级;如果终端为静止终端,则基站在寻呼消息中携带多套随机接入资源的相关信息给终端,且利用该使用方式信息,标记该多套随机接入资源对 应不同空中接口第四传输。
以基站在寻呼消息中携带两套随机接入资源的相关信息给终端为例(为了区分,两套随机接入资源的相关信息分别命名为第一使用方式和第二使用方式)。第一使用方式用于指示终端将在后续的上行传输中(如随机接入前缀之后的第一个上行传输)包含数据,需要请求较大的上行授权;第二使用方式用于指示终端在后续的上行传输中(如随机接入前缀之后的第一个上行传输)不包含数据,网络分配较小的上行授权即可。如果每套随机接入资源的相关信息中分别包含覆盖等级信息,则可以认为隐含地指示了这些随机接入资源是对应不同覆盖等级的。上述使用方式也可以进行组合,例如用一使用方式指示:当终端使用该套随机接入资源时,表明终端处于覆盖等级n且将在随机接入前缀之后的上行传输中包含数据。用另一使用方式指示:当终端使用该套随机接入资源时,表明终端处于覆盖等级n且将在随机接入前缀之后的上行传输中不包含数据。
终端收到空中接口第一传输(寻呼消息)后,根据实际需求选择多套覆盖等级中的一套发起随机接入(即发送空中接口第二传输)。
在第六个示例性实施方式中,基站广播两套下行传输接收定时器配置信息。随机接入资源的使用方式信息分别标记这两套下行传输接收定时器配置信息(分别针对静止终端和非静止终端),或者随机接入资源的使用方式信息分别标记这两套下行传输接收定时器配置信息(分别针对始终处于本小区的终端或从其他小区移动而来的终端)。
针对静止终端或始终处于本小区的终端的下行传输接收定时器配置信息,定时器起始位置偏移量可设置为较小的值,或定时器时长可以设置为较小的值。针对非静止终端或从其他小区移动而来的终端的下行传输接收定时器配置信息,定时器起始位置偏移量可设置为较大的值,或定时器时长可以设置为较大的值。
针对非静止终端,基站可以提供针对多套覆盖等级的下行传输接收定时器配置信息。若终端在上次连接释放后发生了移动,终端会选择针对非静止终端的、且与自己发送随机接入前缀采用的覆盖等级相适配的下行传输接收定时器配置信息来接收空中接口第三传输。基站也会根据接收专用随机接入前缀的情 况判断出该被寻呼终端是否发生了移动以及适用的覆盖等级,从而在合适的定时器起始位置以及定时器时长范围内向终端发送空中接口第三传输。
在第七个示例性实施方式中,图7示出了一实施例提供的一种终端触发的MT-EDT回退流程的流程示意图。终端可以在空中接口第四传输中发送相关技术的RRC连接建立请求消息、RRC连接恢复请求消息、RRC连接重配置请求消息中的任意一种,请求建立/恢复/重配置空中接口(如RRC)连接,该消息中可以同时携带部分上行数据或缓冲区状态报告。基站收到该空中接口第四传输后,向终端发送空中接口第五传输,可包含空中接口建立消息/恢复消息/重配置消息,但无需包含冲突解决相关信息,且无需再次触发基站与核心网间连接的建立或恢复。终端收到空中接口第五传输后,进入连接态,并向基站发送空中接口第六传输,可包含空中接口建立完成消息/恢复完成消息/重配置完成消息。
使用CP方案的终端可以使用该第七个示例性实施方式。
在第八个示例性实施方式中,图8示出了一实施例提供的另一种终端触发的MT-EDT回退流程的流程示意图。终端可以在空中接口第四传输中直接包含空中接口建立完成消息/恢复完成消息/重配置完成消息,并转入连接态。后续基站如果需要修改终端配置,则可以发起空中接口连接重配置流程。
使用UP方案的终端可以使用该第八个示例性实施方式。
图9示出了一实施例提供的一种数据传输装置的结构示意图,该数据传输装置可以配置于第一通信节点中,如图9所示,包括:接收模块10。在一实施例中,还包括:处理模块11和发送模块12。
接收模块10,设置为接收第二通信节点发送的第一信息,第一信息包括传输资源的配置信息。
本实施例提供的数据传输装置为实现图2或图3所示实施例的数据传输方法,本实施例提供的数据传输装置实现原理类似,此处不再赘述。
在一实施例中,传输资源的配置信息包括以下信息中的至少一项:
专用资源的偏移量配置信息;非竞争随机接入资源的频域资源信息;监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;非竞争随机接入资源的频域资源信息的偏移量配置信息;非竞争随机接入资源的时域资源信息的偏移量配置信息;针对不同类型的第一通信节点的至少两套下行传输接收定 时器配置信息;随机接入资源的使用方式信息。
在一实施例中,传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量配置信息包括专用资源的偏移量的长度和取值范围参数中的至少一项;处理模块11,设置为根据专用资源的偏移量的长度和取值范围参数中的至少一项,确定专用资源的偏移量的有效值;根据专用资源的偏移量的有效值,确定专用资源;发送模块12,设置为在接收模块10接收第二通信节点发送的空中接口第一传输(message 0)后,根据专用资源,向第二通信节点发送空中接口第二传输(message 1)。
在一实施例中,传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量配置信息包括针对不同功能的第一通信节点的至少两套专用资源的偏移量配置信息,每套专用资源的偏移量配置信息均包括专用资源的偏移量的长度和取值范围参数中的至少一项。
在一实施例中,使用专用资源的功能为以下功能中的至少一项:切换(handover)、物理层下行控制信道指令(PDCCH order)、提前数据传输EDT、始呼提前数据传输MO-EDT、终呼提前数据传输MT-EDT;功能是专用资源的偏移量配置信息的内容之一。
在一实施例中,专用资源包括:非竞争随机接入资源、专用随机接入资源、专用终端标识中的至少一项。
在一实施例中,非竞争随机接入资源或者专用随机接入资源包括以下参数中的至少一项:增强机器类通信eMTC系统中的随机接入前缀;窄带物联网NB-IoT系统中的随机接入频域资源中的载波序号、子载波序号;随机接入时域资源;新无线接入技术NR系统中基于单边带SSB的随机接入资源;
专用终端标识包括以下参数中的至少一项:终端指定的小区无线网络临时标识C-RNTI;其他类型的无线网络临时标识RNTI。
在一实施例中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息,非竞争随机接入资源的频域资源信息包括初始载波列表和初始子载波列表中的至少一项;初始载波列表包括N个载波,初始子载波列表包括T个子载波,N、T为正整数;处理模块11,设置为根据当前时刻监听空中接口第一传输的载波序号对N取模,确定非竞争随机接入资源的初始载波序号;发送模块12, 设置为在接收模块10接收第二通信节点发送的空中接口第一传输后,根据非竞争随机接入资源的初始载波序号,向第二通信节点发送空中接口第二传输;和/或;处理模块11,设置为根据当前时刻监听空中接口第一传输的子载波序号对T取模,确定非竞争随机接入资源的初始子载波序号;发送模块12,设置为在接收模块10接收第二通信节点发送的空中接口第一传输后,根据非竞争随机接入资源的初始子载波序号,向第二通信节点发送空中接口第二传输。
在一实施例中,传输资源的配置信息包括监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;处理模块11,设置为根据当前时刻监听空中接口第一传输的载波与监听空中接口第一传输的资源和非竞争随机接入资源的映射关系,确定非竞争随机接入资源;发送模块12,设置为在接收模块10接收第二通信节点发送的空中接口第一传输后,根据非竞争随机接入资源,向第二通信节点发送空中接口第二传输,非竞争随机接入资源至少包括非竞争随机接入资源的初始载波序号和初始子载波序号中的至少一项。
在一实施例中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息的偏移量配置信息,非竞争随机接入资源的频域资源信息的偏移量配置信息包括N个载波,N为正整数;若每个载波i上配置了m
i个子载波资源,则非竞争随机接入资源的初始频域资源组包括M个资源,
发送模块12,设置为在接收模块10接收第二通信节点发送的空中接口第一传输后,根据非竞争随机接入资源的初始频域资源,向第二通信节点发送空中接口第二传输;非竞争随机接入资源的初始频域资源采用以下方法中的至少一种得到:第一通信节点根据非竞争随机接入资源的频域资源信息的偏移量配置信息,确定非竞争随机接入资源的频域资源信息的偏移量;第一通信节点根据非竞争随机接入资源的频域资源信息的偏移量,从非竞争随机接入资源的初始频域资源组中得到非竞争随机接入资源的初始频域资源;第一通信节点根据终端标识对M取模,确定非竞争随机接入资源的初始频域资源;当空中接口第一传输的载波数量大于M时,第一通信节点根据当前时刻监听空中接口第一传输的载波序号对M取模,确定非竞争随机接入资源的初始频域资源;当空中接口第一传输的载波数量小于M时,第一通信节点根据非竞争随机接入资源的初始频域资源组中的每个资源序号对监听空中接口第一传输的载波数量取模,确定非竞争随机接入资源的初始频域资源。
在一实施例中,传输资源的配置信息包括针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;每套下行传输接收定时器配置信息包括类型信息、定时器长度和定时器起始位置偏移量中的至少一种;类型信息用于指示第一通信节点的状态为静止或非静止,或者用于指示第一通信节点是始终处于一个小区或者是从其他小区移动而来;定时器起始位置偏移量设置为相对于第一通信节点之前上行传输结束位置的偏移量。
在一实施例中,传输资源的配置信息包括随机接入资源的使用方式信息;随机接入资源的使用方式信息包括以下信息中的至少一项:
每个随机接入资源的使用方式信息对应一套随机接入资源;随机接入资源的使用方式信息用于标记随机接入资源的覆盖等级;随机接入资源的使用方式信息用于标记第一通信节点使用随机接入资源发送空中接口第二传输之后的上行传输的特征;处理模块11,设置为在接收模块10接收第二通信节点发送的空中接口第一传输后,选择一套随机接入资源;发送模块12,设置为向第二通信节点发送空中接口第二传输。
在一实施例中,处理模块11,设置为获取处于传输资源的配置信息范围内的传输资源偏移量offset;确定传输资源的起始位置X,并在起始位置X上叠加传输资源偏移量offset,得到实际使用的传输资源位置(X+offset)。
在一实施例中,传输资源包括以下资源中的至少一项:随机接入资源,竞争随机接入资源,非竞争随机接入资源,免调度资源,免调度上行传输资源,免调度下行传输资源。
在一实施例中,起始位置X是基于终端标识和小区标识中的至少一项确定的。
在一实施例中,接收模块10,是设置为接收第二通信节点在广播消息或专用消息中发送的处于传输资源的配置信息范围内的传输资源偏移量offset;处理模块11,是设置为基于终端标识或所在小区标识确定处于传输资源的配置信息范围内的传输资源偏移量offset。
在一实施例中,接收模块10,还设置为接收第二通信节点发送的空中接口第三传输(message 2);发送模块12,还设置为向第二通信节点发送空中接口第四传输(message 3),空中接口第四传输包括第一通信节点的标识。
在一实施例中,第一通信节点的标识包括非接入层NAS标识和恢复标识ID中的至少一项。
在一实施例中,空中接口第一传输为寻呼消息;空中接口第二传输为随机接入消息和随机接入前缀中的至少一种;空中接口第三传输为下行数据信息、随机接入响应消息、随机接入前缀响应中的至少一种;空中接口第四传输为上行消息和上行数据信息中的至少一种。
在一实施例中,第一信息为广播消息、专用消息、单播消息、配置信令中的至少一种。
图10示出了一实施例提供的另一种数据传输装置的结构示意图,该数据传输装置可以配置于第二通信节点中,如图10所示,包括:发送模块20。在一实施例中,还包括:接收模块21。
发送模块20,设置为向第一通信节点发送第一信息,第一信息包括传输资源的配置信息。
本实施例提供的数据传输装置为实现图4所示实施例的数据传输方法,本实施例提供的数据传输装置实现原理类似,此处不再赘述。
在一实施例中,传输资源的配置信息包括以下信息中的至少一项:
专用资源的偏移量配置信息;非竞争随机接入资源的频域资源信息;监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;非竞争随机接入资源的频域资源信息的偏移量配置信息;非竞争随机接入资源的时域资源信息的偏移量配置信息;针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;随机接入资源的使用方式信息。
在一实施例中,传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量配置信息包括专用资源的偏移量的长度和取值范围参数中的至少一项;接收模块21,设置为在发送模块20向第一通信节点发送空中接口第一传输(message 0)后,接收第一通信节点根据专用资源发送的空中接口第二传输(message 1)。
在一实施例中,传输资源的配置信息包括专用资源的偏移量配置信息;专用资源的偏移量配置信息包括针对不同功能的第一通信节点的至少两套专用资源的偏移量配置信息,每套专用资源的偏移量配置信息均包括专用资源的偏移 量的长度和取值范围参数中的至少一项。
在一实施例中,使用专用资源的功能为以下功能中的至少一项:切换(handover)、物理层下行控制信道指令(PDCCH order)、提前数据传输EDT、始呼提前数据传输MO-EDT、终呼提前数据传输MT-EDT;功能是专用资源的偏移量配置信息的内容之一。
在一实施例中,专用资源包括:非竞争随机接入资源、专用随机接入资源、专用终端标识中的至少一项。
在一实施例中,非竞争随机接入资源或者专用随机接入资源包括以下参数中的至少一项:增强机器类通信eMTC系统中的随机接入前缀;窄带物联网NB-IoT系统中的随机接入频域资源中的载波序号、子载波序号;随机接入时域资源;新无线接入技术NR系统中基于单边带SSB的随机接入资源;专用终端标识包括以下参数中的至少一项:终端指定的小区无线网络临时标识C-RNTI;其他类型的无线网络临时标识RNTI。
在一实施例中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息,非竞争随机接入资源的频域资源信息包括初始载波列表和初始子载波列表中的至少一项;初始载波列表包括N个载波,初始子载波列表包括T个子载波,N、T为正整数;接收模块21,设置为在发送模块20向第一通信节点发送空中接口第一传输后,接收第一通信节点根据非竞争随机接入资源的初始载波序号发送的空中接口第二传输;和/或,接收模块21,设置为在发送模块20向第一通信节点发送空中接口第一传输后,接收第一通信节根据非竞争随机接入资源的初始子载波序号发送的空中接口第二传输。
在一实施例中,传输资源的配置信息包括监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;接收模块21,设置为在发送模块20向第一通信节点发送空中接口第一传输后,接收第一通信节点根据非竞争随机接入资源发送的空中接口第二传输,非竞争随机接入资源至少包括非竞争随机接入资源的初始载波序号和初始子载波序号中的至少一项。
在一实施例中,传输资源的配置信息包括非竞争随机接入资源的频域资源信息的偏移量配置信息,非竞争随机接入资源的频域资源信息的偏移量配置信息包括N个载波,N为正整数;若每个载波i上配置了m
i个子载波资源,则非 竞争随机接入资源的初始频域资源组包括M个资源,
接收模块21,设置为在发送模块20向第一通信节点发送空中接口第一传输后,接收第一通信节点根据非竞争随机接入资源的初始频域资源发送的空中接口第二传输。
在一实施例中,传输资源的配置信息包括针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;每套下行传输接收定时器配置信息包括类型信息、定时器长度和定时器起始位置偏移量中的至少一种;类型信息用于指示第一通信节点的状态为静止或非静止,或者用于指示第一通信节点是始终处于一个小区或者是从其他小区移动而来;定时器起始位置偏移量设置为相对于第一通信节点之前上行传输结束位置的偏移量。
在一实施例中,传输资源的配置信息包括随机接入资源的使用方式信息;随机接入资源的使用方式信息包括以下信息中的至少一项:
每个随机接入资源的使用方式信息对应一套随机接入资源;随机接入资源的使用方式信息用于标记随机接入资源的覆盖等级;随机接入资源的使用方式信息用于标记第一通信节点使用随机接入资源发送空中接口第二传输之后的上行传输的特征;接收模块21,设置为在发送模块20向第一通信节点发送空中接口第一传输后,接收第一通信节点根据选择的一套随机接入资源发送的空中接口第二传输。
在一实施例中,发送模块20,还设置为向第一通信节点发送空中接口第三传输(message 2);接收模块21,还设置为接收第一通信节点发送的空中接口第四传输(message 3),空中接口第四传输包括第一通信节点的标识。
在一实施例中,第一通信节点的标识包括非接入层NAS标识和恢复标识ID中的至少一项。
在一实施例中,空中接口第一传输为寻呼消息;空中接口第二传输为随机接入消息和随机接入前缀中的至少一种;空中接口第三传输为下行数据信息、随机接入响应消息、随机接入前缀响应中的至少一种;空中接口第四传输为上行消息和上行数据信息中的至少一种。
在一实施例中,第一信息为广播消息、专用消息、单播消息、配置信令中的至少一种。
图11示出了一实施例提供的又一种数据传输装置的结构示意图,该数据传 输装置可以配置于第一通信节点中,如图11所示,包括:接收模块30和发送模块31。
接收模块30,设置为接收第二通信节点发送的空中接口第三传输(message 2),空中接口第三传输包括以下特征中的至少一项:空中接口第三传输包括下行数据,空中接口第三传输指示第一通信节点向第二通信节点发送大流量上行数据;发送模块31,设置为根据空中接口第三传输,向第二通信节点发送空中接口第四传输(message 3),空中接口第四传输触发第二通信节点与第一通信节点的无线资源控制RRC连接。
本实施例提供的数据传输装置为实现图5所示实施例的数据传输方法,本实施例提供的数据传输装置实现原理类似,此处不再赘述。
在一实施例中,空中接口第四传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,空中接口第四传输还包括RRC连接建立请求消息、RRC连接恢复请求消息、RRC连接重配置请求消息中的任意一种。
在一实施例中,接收模块30,还设置为接收第二通信节点发送的空中接口第五传输(message 4),空中接口第五传输包括RRC连接建立消息、RRC连接恢复消息、RRC连接重配置消息中的任意一种;发送模块31,还设置为根据空中接口第五传输,向第二通信节点发送空中接口第六传输,空中接口第六传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,空中接口第四传输包括第一通信节点的标识。
在一实施例中,第一通信节点的标识包括非接入层NAS标识和恢复标识ID中的至少一项。
图12示出了一实施例提供的再一种数据传输装置的结构示意图,该数据传输装置可以配置于第二通信节点中,如图12所示,包括:发送模块40和接收模块41。
发送模块40,设置为向第一通信节点发送空中接口第三传输(message 2),空中接口第三传输包括以下特征中的至少一项:空中接口第三传输包括下行数据,空中接口第三传输指示第一通信节点向第二通信节点发送大流量上行数据; 接收模块41,设置为接收第一通信节点发送的空中接口第四传输(message 3),空中接口第四传输触发第二通信节点与第一通信节点的无线资源控制RRC连接。
本实施例提供的数据传输装置为实现图6所示实施例的数据传输方法,本实施例提供的数据传输装置实现原理类似,此处不再赘述。
在一实施例中,空中接口第四传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,空中接口第四传输还包括RRC连接建立请求消息、RRC连接恢复请求消息、RRC连接重配置请求消息中的任意一种。
在一实施例中,发送模块40,还设置为向第一通信节点发送空中接口第五传输(message 4),空中接口第五传输包括RRC连接建立消息、RRC连接恢复消息、RRC连接重配置消息中的任意一种;接收模块41,还设置为接收第一通信节点发送的空中接口第六传输,空中接口第六传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
在一实施例中,空中接口第四传输包括第一通信节点的标识。
在一实施例中,第一通信节点的标识包括非接入层NAS标识和恢复标识ID中的至少一项。
本申请实施例还提供了一种数据传输装置,包括:处理器,处理器用于在执行计算机程序时实现如本申请任意实施例所提供的方法。具体的,该业务传输装置可以为本申请任意实施例所提供的第一通信节点,也可以为本申请任意实施例所提供的第二通信节点,本申请对此不作具体限制。
下述实施例分别提供一种数据传输装置为UE和基站的结构示意图。
图13示出了一实施例提供的一种UE的结构示意图,UE可以以多种形式来实施,本申请中的UE可以包括但不限于诸如移动电话、智能电话、笔记本电脑、数字广播接收器、个人数字助理(Personal Digital Assistant,PDA)、平板电脑(Portable Device,PAD)、便携式多媒体播放器(Portable Media Player,PMP)、导航装置、车载终端设备、车载显示终端、车载电子后视镜等等的移动终端设备以及诸如数字电视(television,TV)、台式计算机等等的固定终端设备。
如图13所示,UE 50可以包括无线通信单元51、音频/视频(Audio/Video,A/V)输入单元52、用户输入单元53、感测单元54、输出单元55、存储器56、接口单元57、处理器58和电源单元59等等。图13示出了包括多种组件的UE,但是应理解的是,并不要求实施所有示出的组件。可以替代地实施更多或更少的组件。
本实施例中,无线通信单元51允许UE 50与基站或网络之间的无线电通信。A/V输入单元52设置为接收音频或视频信号。用户输入单元53可以根据用户输入的命令生成键输入数据以控制UE 50的多种操作。感测单元54检测UE 50的当前状态、UE 50的位置、用户对于UE 50的触摸输入的有无、UE 50的取向、UE 50的加速或减速移动和方向等等,并且生成用于控制UE 50的操作的命令或信号。接口单元57用作至少一个外部装置与UE 50连接可以通过的接口。输出单元55被构造为以视觉、音频和/或触觉方式提供输出信号。存储器56可以存储由处理器58执行的处理和控制操作的软件程序等等,或者可以暂时地存储己经输出或将要输出的数据。存储器56可以包括至少一种类型的存储介质。而且,UE 50可以与通过网络连接执行存储器56的存储功能的网络存储装置协作。处理器58通常控制UE 50的总体操作。电源单元59在处理器58的控制下接收外部电力或内部电力并且提供操作多种元件和组件所需的适当的电力。
处理器58通过运行存储在存储器56中的程序,从而执行至少一种功能应用以及数据处理,例如实现本申请实施例所提供的方法。
图14示出了一实施例提供的一种基站的结构示意图,如图14所示,该基站包括处理器60、存储器61和通信接口62;基站中处理器60的数量可以是一个或多个,图14中以一个处理器60为例;基站中的处理器60、存储器61、通信接口62可以通过总线或其他方式连接,图14中以通过总线连接为例。总线表示几类总线结构中的一种或多种,包括存储器总线或者存储器控制器,外围总线,图形加速端口,处理器或者使用多种总线结构中的任意总线结构的局域总线。
存储器61作为一种计算机可读存储介质,可设置为存储软件程序、计算机可执行程序以及模块,如本申请实施例中的方法对应的程序指令/模块。处理器60通过运行存储在存储器61中的软件程序、指令以及模块,从而执行基站的至少一种功能应用以及数据处理,即实现上述的数据传输方法。
存储器61可包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序;存储数据区可存储根据终端的使用所创建的数据等。此外,存储器61可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中,存储器61可包括相对于处理器60远程设置的存储器,这些远程存储器可以通过网络连接至基站。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
通信接口62可设置为数据的接收与发送。
本申请实施例还提供了一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现如本申请任意实施例所提供的方法。
本申请实施例的计算机存储介质,可以采用一个或多个计算机可读的介质的任意组合。计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质。计算机可读存储介质例如可以是但不限于电、磁、光、电磁、红外线、或半导体的系统、装置或器件,或者任意以上的组合。计算机可读存储介质包括(非穷举的列表):具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机存取存储器(Random Access Memory,RAM)、只读存储器(Read-Only Memory,ROM)、可擦式可编程只读存储器(erasable programmable Read-Only Memory,EPROM)、闪存、光纤、便携式紧凑磁盘只读存储器(Compact Disc Read-Only Memory,CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本申请中,计算机可读存储介质可以是任何包含或存储程序的有形介质,该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。
计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号,数据信号中承载了计算机可读的程序代码。这种传播的数据信号可以采用多种形式,包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质,该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。
计算机可读介质上包含的程序代码可以用任何适当的介质传输,包括但不 限于无线、电线、光缆、射频(Radio Frequency,RF)等等,或者上述的任意合适的组合。
可以以一种或多种程序设计语言或多种程序设计语言组合来编写用于执行本公开操作的计算机程序代码,程序设计语言包括面向对象的程序设计语言—诸如Java、Smalltalk、C++、Ruby、Go,还包括常规的过程式程序设计语言—诸如“C”语言或类似的程序设计语言。程序代码可以完全地在用户计算机上执行、部分地在用户计算机上执行、作为一个独立的软件包执行、部分在用户计算机上部分在远程计算机上执行、或者完全在远程计算机或服务器上执行。在涉及远程计算机的情形中,远程计算机可以通过任意种类的网络——包括局域网(Local Area Network,LAN)或广域网(Wide Area Network,WAN)—连接到用户计算机,或者,可以连接到外部计算机(例如利用因特网服务提供商来通过因特网连接)。
本领域内的技术人员应明白,术语用户终端涵盖任何适合类型的无线用户设备,例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说,本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如,一些方面可以被实现在硬件中,而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中,尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现,例如在处理器实体中,或者通过硬件,或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture,ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤,或者可以表示相互连接的逻辑电路、模块和功能,或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现,例如但不限于ROM、随机访问存储器RAM、光存储器装置和系统(数码多功能光碟(Digital Versatile Disc,DVD)或(Compact Disk,CD)光盘)等。计算机可读介质可以 包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型,例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processing,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、可编程逻辑器件((Field-Programmable Gate Array,FGPA)以及基于多核处理器架构的处理器。
Claims (50)
- 一种数据传输方法,包括:第一通信节点接收第二通信节点发送的第一信息,所述第一信息包括传输资源的配置信息。
- 根据权利要求1所述的方法,其中,所述传输资源的配置信息包括以下信息中的至少一项:专用资源的偏移量配置信息;非竞争随机接入资源的频域资源信息;监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;非竞争随机接入资源的频域资源信息的偏移量配置信息;非竞争随机接入资源的时域资源信息的偏移量配置信息;针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;随机接入资源的使用方式信息。
- 根据权利要求2所述的方法,其中,所述传输资源的配置信息包括所述专用资源的偏移量配置信息;所述专用资源的偏移量配置信息包括目标参数,所述目标参数包括以下参数中的至少一项:专用资源的偏移量的长度和专用资源的偏移量的取值范围;所述方法还包括:所述第一通信节点根据所述目标参数,确定专用资源的偏移量的有效值;所述第一通信节点根据所述专用资源的偏移量的有效值,确定专用资源;在接收所述第二通信节点发送的空中接口第一传输(message 0)后,所述第一通信节点根据所述专用资源,向所述第二通信节点发送空中接口第二传输(message 1)。
- 根据权利要求2所述的方法,其中,所述传输资源的配置信息包括所述专用资源的偏移量配置信息;所述专用资源的偏移量配置信息包括针对不同功能的第一通信节点的至少两套专用资源的偏移量配置信息,每套专用资源的偏移量配置信息包括以下参数中的至少一项:专用资源的偏移量的长度和专用资源的偏移量的取值范围。
- 根据权利要求4所述的方法,其中,使用所述专用资源的功能为以下功能中的至少一项:切换(handover)、物理层下行控制信道指令(PDCCH order)、 提前数据传输EDT、始呼提前数据传输MO-EDT、终呼提前数据传输MT-EDT;所述功能是所述专用资源的偏移量配置信息的内容之一。
- 根据权利要求2所述的方法,其中,所述专用资源包括:非竞争随机接入资源、专用随机接入资源、专用终端标识中的至少一项。
- 根据权利要求6所述的方法,其中,所述非竞争随机接入资源或者所述专用随机接入资源包括以下参数中的至少一项:增强机器类通信eMTC系统中的随机接入前缀;窄带物联网NB-IoT系统中的随机接入频域资源中的载波序号、NB-IoT系统中的随机接入频域资源中的子载波序号;随机接入时域资源;新无线接入技术NR系统中基于单边带SSB的随机接入资源;所述专用终端标识包括以下参数中的至少一项:终端指定的小区无线网络临时标识C-RNTI;其他类型的无线网络临时标识RNTI。
- 根据权利要求2所述的方法,其中,所述传输资源的配置信息包括所述非竞争随机接入资源的频域资源信息,所述非竞争随机接入资源的频域资源信息包括初始载波列表和初始子载波列表中的至少一项;所述初始载波列表包括N个载波,所述初始子载波列表包括T个子载波,N和T均为正整数;所述方法还包括以下方法中的至少一项:所述第一通信节点根据当前时刻监听空中接口第一传输的载波序号对N取模,确定非竞争随机接入资源的初始载波序号;在接收所述第二通信节点发送的空中接口第一传输后,所述第一通信节点根据所述非竞争随机接入资源的初始载波序号,向所述第二通信节点发送空中接口第二传输;所述第一通信节点根据当前时刻监听空中接口第一传输的子载波序号对T取模,确定非竞争随机接入资源的初始子载波序号;在接收所述第二通信节点发送的空中接口第一传输后,所述第一通信节点根据所述非竞争随机接入资源的初始子载波序号,向所述第二通信节点发送空中接口第二传输。
- 根据权利要求2所述的方法,其中,所述传输资源的配置信息包括所述监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;所述方法还包括:所述第一通信节点根据当前时刻监听空中接口第一传输的载波与所述监听 空中接口第一传输的资源和非竞争随机接入资源的映射关系,确定非竞争随机接入资源;在接收所述第二通信节点发送的空中接口第一传输后,所述第一通信节点根据所述非竞争随机接入资源,向所述第二通信节点发送空中接口第二传输,所述非竞争随机接入资源至少包括非竞争随机接入资源的初始载波序号和初始子载波序号中的至少一项。
- 根据权利要求2所述的方法,其中,所述传输资源的配置信息包括所述非竞争随机接入资源的频域资源信息的偏移量配置信息,所述非竞争随机接入资源的频域资源信息的偏移量配置信息包括N个载波,N为正整数;在N个载波中的每个载波i上配置了m i个子载波资源的情况下,非竞争随机接入资源的初始频域资源组包括M个资源, 所述方法还包括:在接收所述第二通信节点发送的空中接口第一传输后,所述第一通信节点根据非竞争随机接入资源的初始频域资源,向所述第二通信节点发送空中接口第二传输;非竞争随机接入资源的初始频域资源采用以下方法中的至少一种得到:所述第一通信节点根据非竞争随机接入资源的频域资源信息的偏移量配置信息,确定非竞争随机接入资源的频域资源信息的偏移量;所述第一通信节点根据所述非竞争随机接入资源的频域资源信息的偏移量,从所述非竞争随机接入资源的初始频域资源组中得到所述非竞争随机接入资源的初始频域资源;所述第一通信节点根据终端标识对M取模,确定所述非竞争随机接入资源的初始频域资源;在空中接口第一传输的载波数量大于M的情况下,所述第一通信节点根据当前时刻监听空中接口第一传输的载波序号对M取模,确定所述非竞争随机接入资源的初始频域资源;在空中接口第一传输的载波数量小于M的情况下,所述第一通信节点根据所述非竞争随机接入资源的初始频域资源组中的每个资源序号对监听空中接口第一传输的载波数量取模,确定所述非竞争随机接入资源的初始频域资源。
- 根据权利要求2所述的方法,其中,所述传输资源的配置信息包括所 述针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;每套下行传输接收定时器配置信息包括类型信息、定时器长度和定时器起始位置偏移量中的至少一种;所述类型信息用于指示所述第一通信节点的状态为静止或非静止,或者用于指示所述第一通信节点是始终处于一个小区或者是从其他小区移动而来;所述定时器起始位置偏移量设置为相对于所述第一通信节点之前上行传输结束位置的偏移量。
- 根据权利要求2所述的方法,其中,所述传输资源的配置信息包括所述随机接入资源的使用方式信息;所述随机接入资源的使用方式信息包括以下信息中的至少一项:每个随机接入资源的使用方式信息对应一套随机接入资源;所述随机接入资源的使用方式信息用于标记所述随机接入资源的覆盖等级;所述随机接入资源的使用方式信息用于标记所述第一通信节点使用所述随机接入资源发送空中接口第二传输之后的上行传输的特征;所述方法还包括:在接收所述第二通信节点发送的空中接口第一传输后,所述第一通信节点选择一套随机接入资源,向所述第二通信节点发送空中接口第二传输。
- 根据权利要求1所述的方法,还包括:所述第一通信节点获取处于所述传输资源的配置信息范围内的传输资源偏移量offset;所述第一通信节点确定传输资源的起始位置X,并在所述起始位置X上叠加所述传输资源偏移量offset,得到实际使用的传输资源位置(X+offset)。
- 根据权利要求13所述的方法,其中,所述传输资源包括以下资源中的至少一项:随机接入资源,竞争随机接入资源,非竞争随机接入资源,免调度资源,免调度上行传输资源,免调度下行传输资源。
- 根据权利要求13所述的方法,其中,所述起始位置X是基于终端标识和小区标识中的至少一项确定的。
- 根据权利要求13所述的方法,其中,所述第一通信节点获取所述传输资源偏移量offset的方法包括以下方法中的至少一项:所述第一通信节点接收所述第二通信节点在广播消息或专用消息中发送的处于所述传输资源的配置信息范围内的传输资源偏移量offset;所述第一通信节点基于终端标识或所在小区标识确定处于所述传输资源的配置信息范围内的所述传输资源偏移量offset。
- 根据权利要求3、8-10、12中任意一项所述的方法,还包括:所述第一通信节点接收所述第二通信节点发送的空中接口第三传输(message 2);所述第一通信节点向所述第二通信节点发送空中接口第四传输(message3),所述空中接口第四传输包括所述第一通信节点的标识。
- 根据权利要求17所述的方法,其中,所述第一通信节点的标识包括非接入层NAS标识和恢复标识ID中的至少一项。
- 根据权利要求17所述的方法,其中,所述空中接口第一传输为寻呼消息;所述空中接口第二传输为随机接入消息和随机接入前缀中的至少一种;所述空中接口第三传输为下行数据信息、随机接入响应消息、随机接入前缀响应中的至少一种;所述空中接口第四传输为上行消息和上行数据信息中的至少一种。
- 根据权利要求1所述的方法,其中,所述第一信息为广播消息、专用消息、单播消息、配置信令中的至少一种。
- 一种数据传输方法,包括:第二通信节点向第一通信节点发送第一信息,所述第一信息包括传输资源的配置信息。
- 根据权利要求21所述的方法,其中,所述传输资源的配置信息包括以下信息中的至少一项:专用资源的偏移量配置信息;非竞争随机接入资源的频域资源信息;监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;非竞争随机接入资源的频域资源信息的偏移量配置信息;非竞争随机接入资源的时域资源信息的偏移量配置信息;针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;随机接入资源的使用方式信息。
- 根据权利要求22所述的方法,其中,所述传输资源的配置信息包括所述专用资源的偏移量配置信息;所述专用资源的偏移量配置信息包括目标参数,所述目标参数包括以下参数中的至少一项:专用资源的偏移量的长度和专用资源的偏移量的取值范围;所述方法还包括:在向所述第一通信节点发送空中接口第一传输(message 0)后,所述第二通信节点接收所述第一通信节点根据专用资源发送的空中接口第二传输(message 1)。
- 根据权利要求22所述的方法,其中,所述传输资源的配置信息包括所述专用资源的偏移量配置信息;所述专用资源的偏移量配置信息包括针对不同功能的第一通信节点的至少两套专用资源的偏移量配置信息,每套专用资源的偏移量配置信息包括以下参数中的至少一项:专用资源的偏移量的长度和专用资源的偏移量的取值范围。
- 根据权利要求24所述的方法,其中,使用所述专用资源的功能为以下功能中的至少一项:切换(handover)、物理层下行控制信道指令(PDCCH order)、提前数据传输EDT、始呼提前数据传输MO-EDT、终呼提前数据传输MT-EDT;所述功能是所述专用资源的偏移量配置信息的内容之一。
- 根据权利要求22所述的方法,其中,所述专用资源包括:非竞争随机接入资源、专用随机接入资源、专用终端标识中的至少一项。
- 根据权利要求26所述的方法,其中,所述非竞争随机接入资源或者所述专用随机接入资源包括以下参数中的至少一项:增强机器类通信eMTC系统中的随机接入前缀;窄带物联网NB-IoT系统中的随机接入频域资源中的载波序号、NB-IoT系统中的随机接入频域资源中的子载波序号;随机接入时域资源;新无线接入技术NR系统中基于单边带SSB的随机接入资源;所述专用终端标识包括以下参数中的至少一项:终端指定的小区无线网络 临时标识C-RNTI;其他类型的无线网络临时标识RNTI。
- 根据权利要求22所述的方法,其中,所述传输资源的配置信息包括所述非竞争随机接入资源的频域资源信息,所述非竞争随机接入资源的频域资源信息包括初始载波列表和初始子载波列表中的至少一项;所述初始载波列表包括N个载波,所述初始子载波列表包括T个子载波,N和T均为正整数;所述方法还包括以下方法中的至少一项:在向所述第一通信节点发送空中接口第一传输后,所述第二通信节点接收所述第一通信节点根据非竞争随机接入资源的初始载波序号发送的空中接口第二传输;在向所述第一通信节点发送空中接口第一传输后,所述第二通信节点接收所述第一通信节点根据非竞争随机接入资源的初始子载波序号发送的空中接口第二传输。
- 根据权利要求22所述的方法,其中,所述传输资源的配置信息包括所述监听空中接口第一传输的资源和非竞争随机接入资源的映射关系;所述方法还包括:在向所述第一通信节点发送空中接口第一传输后,所述第二通信节点接收所述第一通信节点根据非竞争随机接入资源发送的空中接口第二传输,所述非竞争随机接入资源至少包括非竞争随机接入资源的初始载波序号和初始子载波序号中的至少一项。
- 根据权利要求22所述的方法,其中,所述传输资源的配置信息包括所 述针对不同类型的第一通信节点的至少两套下行传输接收定时器配置信息;每套下行传输接收定时器配置信息包括类型信息、定时器长度和定时器起始位置偏移量中的至少一种;所述类型信息用于指示所述第一通信节点的状态为静止或非静止,或者用于指示所述第一通信节点是始终处于一个小区或者是从其他小区移动而来;所述定时器起始位置偏移量设置为相对于所述第一通信节点之前上行传输结束位置的偏移量。
- 根据权利要求22所述的方法,其中,所述传输资源的配置信息包括所述随机接入资源的使用方式信息;所述随机接入资源的使用方式信息包括以下信息中的至少一项:每个随机接入资源的使用方式信息对应一套随机接入资源;所述随机接入资源的使用方式信息用于标记所述随机接入资源的覆盖等级;所述随机接入资源的使用方式信息用于标记所述第一通信节点使用所述随机接入资源发送空中接口第二传输之后的上行传输的特征;所述方法还包括:在向所述第一通信节点发送空中接口第一传输后,所述第二通信节点接收所述第一通信节点根据选择的一套随机接入资源发送的空中接口第二传输。
- 根据权利要求23、28-30、32中任意一项所述的方法,还包括:所述第二通信节点向所述第一通信节点发送空中接口第三传输(message2);所述第二通信节点接收所述第一通信节点发送的空中接口第四传输(message 3),所述空中接口第四传输包括所述第一通信节点的标识。
- 根据权利要求33所述的方法,其中,所述第一通信节点的标识包括非接入层NAS标识和恢复标识ID中的至少一项。
- 根据权利要求33所述的方法,其中,所述空中接口第一传输为寻呼消息;所述空中接口第二传输为随机接入消息和随机接入前缀中的至少一种;所述空中接口第三传输为下行数据信息、随机接入响应消息、随机接入前缀响应 中的至少一种;所述空中接口第四传输为上行消息和上行数据信息中的至少一种。
- 根据权利要求21所述的方法,其中,所述第一信息为广播消息、专用消息、单播消息、配置信令中的至少一种。
- 一种数据传输方法,包括:第一通信节点接收第二通信节点发送的空中接口第三传输(message 2),所述空中接口第三传输包括以下特征中的至少一项:所述空中接口第三传输包括下行数据,所述空中接口第三传输指示所述第一通信节点向所述第二通信节点发送大流量上行数据;所述第一通信节点根据所述空中接口第三传输,向所述第二通信节点发送空中接口第四传输(message 3),所述空中接口第四传输触发所述第二通信节点与所述第一通信节点的无线资源控制RRC连接。
- 根据权利要求37所述的方法,其中,所述空中接口第四传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
- 根据权利要求37所述的方法,其中,所述空中接口第四传输包括RRC连接建立请求消息、RRC连接恢复请求消息、RRC连接重配置请求消息中的任意一种。
- 根据权利要求39所述的方法,还包括:所述第一通信节点接收所述第二通信节点发送的空中接口第五传输(message 4),所述空中接口第五传输包括RRC连接建立消息、RRC连接恢复消息、RRC连接重配置消息中的任意一种;所述第一通信节点根据所述空中接口第五传输,向所述第二通信节点发送空中接口第六传输,所述空中接口第六传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
- 根据权利要求37-40中的任意一项所述的方法,其中,所述空中接口第四传输包括所述第一通信节点的标识。
- 根据权利要求41所述的方法,其中,所述第一通信节点的标识包括非 接入层NAS标识和恢复标识ID中的至少一项。
- 一种数据传输方法,包括:第二通信节点向第一通信节点发送空中接口第三传输(message 2),所述空中接口第三传输包括以下特征中的至少一项:所述空中接口第三传输包括下行数据,所述空中接口第三传输指示所述第一通信节点向所述第二通信节点发送大流量上行数据;所述第二通信节点接收所述第一通信节点发送的空中接口第四传输(message 3),所述空中接口第四传输触发所述第二通信节点与所述第一通信节点的无线资源控制RRC连接。
- 根据权利要求43所述的方法,其中,所述空中接口第四传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
- 根据权利要求43所述的方法,其中,所述空中接口第四传输包括RRC连接建立请求消息、RRC连接恢复请求消息、RRC连接重配置请求消息中的任意一种。
- 根据权利要求45所述的方法,还包括:所述第二通信节点向所述第一通信节点发送空中接口第五传输(message4),所述空中接口第五传输包括RRC连接建立消息、RRC连接恢复消息、RRC连接重配置消息中的任意一种;所述第二通信节点接收所述第一通信节点发送的空中接口第六传输,所述空中接口第六传输包括RRC连接建立完成消息、RRC连接恢复完成消息、RRC连接重配置完成消息中的任意一种。
- 根据权利要求43-46中的任意一项所述的方法,其中,所述空中接口第四传输包括所述第一通信节点的标识。
- 根据权利要求47所述的方法,其中,所述第一通信节点的标识包括非接入层NAS标识和恢复标识ID中的至少一项。
- 一种数据传输装置,包括:处理器,所述处理器设置为在执行计算机程序时实现如权利要求1-48中任一项所述的数据传输方法。
- 一种计算机可读存储介质,存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1-48中任一项所述的数据传输方法。
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