CN109963340B - Method, apparatus and computer readable medium for reducing signaling overhead and data latency - Google Patents
Method, apparatus and computer readable medium for reducing signaling overhead and data latency Download PDFInfo
- Publication number
- CN109963340B CN109963340B CN201711423817.XA CN201711423817A CN109963340B CN 109963340 B CN109963340 B CN 109963340B CN 201711423817 A CN201711423817 A CN 201711423817A CN 109963340 B CN109963340 B CN 109963340B
- Authority
- CN
- China
- Prior art keywords
- information
- terminal device
- resource control
- control connection
- network device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000011664 signaling Effects 0.000 title abstract description 15
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims description 46
- 238000012545 processing Methods 0.000 claims description 18
- 230000015654 memory Effects 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 102100022734 Acyl carrier protein, mitochondrial Human genes 0.000 description 1
- 101000678845 Homo sapiens Acyl carrier protein, mitochondrial Proteins 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- GVVPGTZRZFNKDS-JXMROGBWSA-N geranyl diphosphate Chemical compound CC(C)=CCC\C(C)=C\CO[P@](O)(=O)OP(O)(O)=O GVVPGTZRZFNKDS-JXMROGBWSA-N 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Embodiments of the present disclosure relate to methods, devices, and computer-readable media for reducing signaling overhead and data latency. According to an embodiment of the disclosure, terminal devices in a group of terminal devices may share a resource control connection with a network device. The network device may determine the terminal device that sent the information based on the terminal device identifier in the received information. According to the embodiments of the present disclosure, it is possible to effectively reduce signaling overhead in data transmission and reduce delay of data transmission.
Description
Technical Field
Embodiments of the present disclosure relate generally to communication technology and, more particularly, relate to a method, apparatus, and computer-readable medium for reducing signaling overhead data transmission delay in data transmission.
Background
Currently, standards such as Long Term Evolution (LTE) communication have been proposed in the third generation partnership project (3 GPP). Standards for fifth generation mobile communications (5G) are currently under discussion. Compared with the traditional communication system, the communication system such as 5G has larger system capacity and supports various novel application scenes. In recent years, machine-type communication (such as vehicle-to-vehicle communication, virtual reality, augmented reality, and the like) has been rapidly developed. Machine type communication can be used for large-scale internet of things services, so that a large number of terminal devices can be arranged in the machine type communication. Research is also underway for communications such as mass machine type communications.
Disclosure of Invention
In general, embodiments of the present disclosure relate to methods for reducing signaling overhead and data delay and corresponding terminal devices.
In a first aspect, embodiments of the present disclosure provide a communication method. The method comprises the following steps: receiving, at a network device, first information from a first terminal device of a group of terminals via a resource control connection between the network device and the group of terminal devices, the first information including a first identifier associated with the first terminal device; processing the first information in association with the first terminal device based on the first identifier; and sending an acknowledgement for the first information to the first terminal device based on the first identifier.
In a second aspect, embodiments of the present disclosure provide a method of communication. The method comprises the following steps: at a first terminal device of a group of terminal devices, sending first information to the network device via a resource control connection between the network device and the group of terminal devices, the first information comprising a first identifier associated with the first terminal device; and monitoring for an acknowledgement from the network device for the first information.
In a third aspect, embodiments of the present disclosure provide a network device. The network device includes: at least one processor; and a memory coupled to the at least one processor, the memory having instructions stored therein that, when executed by the at least one processor, cause the terminal device to perform acts comprising: receiving first information from a first terminal device of a group of terminals via a resource control connection between a network device and the group of terminal devices, the first information comprising a first identifier associated with the first terminal device; processing the first information in association with the first terminal device based on the first identifier; and sending an acknowledgement for the first information to the first terminal device based on the first identifier.
In a fourth aspect, embodiments of the present disclosure provide a terminal device. The terminal device includes: at least one processor; and a memory coupled to the at least one processor, the memory having instructions stored therein that, when executed by the at least one processor, cause the terminal device to perform acts comprising: sending first information to a network device via a resource control connection between the network device and a group of terminal devices, the first information including a first identifier associated with the terminal device; and monitoring for an acknowledgement from the network device for the first information.
In a fifth aspect, embodiments of the present disclosure provide a computer-readable storage medium. The computer readable storage medium comprises program code stored thereon, which when executed by an apparatus, causes the apparatus to perform the method according to the first or second aspect.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings, in which:
fig. 1 illustrates a block diagram of an example communication system in which embodiments of the present disclosure may be implemented;
FIG. 2 illustrates an interaction diagram of communications, in accordance with certain embodiments of the present disclosure;
FIG. 3 illustrates a flow diagram of an example method in accordance with certain embodiments of the present disclosure;
FIG. 4 illustrates a flow diagram of an example method in accordance with certain embodiments of the present disclosure;
FIG. 5 illustrates a flow diagram of an example method in accordance with certain embodiments of the present disclosure; and
fig. 6 illustrates a block diagram of a communication device, in accordance with certain embodiments of the present disclosure.
The same or similar reference numbers are used throughout the drawings to refer to the same or like elements.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.
The term "network device" as used herein refers to any suitable entity or device capable of providing a cell or coverage such that a terminal device may access a network through or receive services from it. Examples of network devices include, for example, base stations. The term "base station" (BS) as used herein may refer to a NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB), gNB, Remote Radio Unit (RRU), Radio Head (RH), Remote Radio Head (RRH), relay, or low power node such as a pico base station, femto base station, or the like.
The terms "terminal device" or "user equipment" (UE) as used herein refer to any entity or device capable of wireless communication with network devices or with each other. As an example, the terminal device may include a Mobile Terminal (MT), a Subscriber Station (SS), a Portable Subscriber Station (PSS), a Mobile Station (MS) or an Access Terminal (AT), the above-mentioned device mounted in a vehicle, and a machine or an appliance having a communication function, and the like.
The term "include" and variations thereof as used herein is intended to be open-ended, i.e., "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment". Relevant definitions for other terms will be given in the following description.
Fig. 1 illustrates an example communication system 100 in which embodiments of the present disclosure may be implemented. In this example, communication system 100 includes a group of terminal devices 110 and a network device 120. Terminal device group 110 may include terminal device 110-1, terminal device 110-2. It is understood that any number of terminal devices may be included in terminal device group 110.
The terminal devices in terminal device group 110 may communicate with network device 120. It should be understood that the number of network devices and terminal devices shown in fig. 1 is for illustration purposes only and is not intended to be limiting. Communication system 100 may include any suitable number of network devices and terminal devices.
The communications in communication system 100 may conform to any suitable wireless communication technology and corresponding communication standard. Examples of communication technologies include, but are not limited to, Long Term Evolution (LTE), LTE-advanced (LTE-a), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), global system for mobile communications (GSM), orthogonal frequency division multiple access (OFDM), Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMAX), bluetooth, Zigbee technology, Machine Type Communication (MTC), D2D, or M2M, among others. Moreover, the communication may be performed according to any suitable communication protocol, including, but not limited to, Transmission Control Protocol (TCP)/Internet Protocol (IP), Hypertext transfer protocol (HTTP), User Datagram Protocol (UDP), Session Description Protocol (SDP), and the like.
In current communication systems, a Radio Resource Control (RRC) connection is typically established between a network device and a terminal device for communicating traffic data. Taking RRC connection between the network device and the terminal device as an example, if the terminal device transmits data to the network device, the terminal device is in an RRC _ CONNECTED (RRC _ CONNECTED) state. After the terminal device completes the data transmission, the RRC connection between the terminal device and the network device is released and the terminal device enters an RRC _ IDLE (RRC _ IDLE) state. If the terminal device needs to transmit new data to the network device, the terminal device needs to establish an RRC connection with the network device again. It can be seen that the above procedure is prone to large amounts of signaling overhead, especially in application scenarios such as mtc, since there are a large number of terminal devices in mtc scenarios but less communication data.
In the latest 3GPP standard, Release15 has introduced a new state RRC _ INACTIVE (RRC _ INACTIVE) state to reduce the signaling overhead of active data transmission. However, currently the RRC _ inactive state does not support data transmission, and transitions between states also need to be performed via RRC signaling. Therefore, in mtc and other scenarios, the overhead of signaling is still huge, and it is a huge challenge for both the capacity of the system and the processing capacity of the network entity.
There are currently some discussions on how to efficiently support mtc in 5G systems. It mainly relates to non-orthogonal medium access and unauthorized access. Non-orthogonal medium access allows a certain degree of resource overload to support a large number of terminal devices. Unlicensed access may have appropriate conflict resolution providing an efficient way to grant resources for mtc terminal devices. However, neither non-orthogonal medium access nor unauthorized access involves management such as RRC connection. Therefore, further research into radio resource control connections is needed. For purposes of illustration only, the application of embodiments of the present disclosure in an mtc scenario is described. It is to be appreciated that embodiments of the present disclosure can be applied in any suitable communication scenario. For example, embodiments of the present disclosure may be applied in communication scenarios with a large number of terminal devices.
In order to save signaling overhead for data transmission between a terminal device and a network device, embodiments of the present disclosure provide a method for sharing a resource control connection with a network device by a terminal device in a terminal device group. Fig. 2 shows a schematic diagram of an interaction process 200 between communication entities according to an embodiment of the present disclosure.
In general, according to embodiments of the present disclosure, a resource control connection exists between network device 120 and terminal device group 110. That is, terminal device 110-1, terminal device 110-2. For example, terminal device 110-1 (which may be referred to as a "first terminal device") may send information (which may be referred to as "first information") to network device 120 via the resource control connection, the information including an identifier (which may be referred to as a "first identifier") associated with terminal device 110-1. Terminal device 110-2 may also send information to network device 120 via the resource control connection, the information including an identifier associated with terminal device 110-2. Network device 120 may determine the corresponding terminal device that sent the information based on the identifier contained in the information. In this way, resource control connection between network device 120 and terminal device group 110 is achieved, so that signaling overhead and data transmission delay in data transmission between terminal devices in terminal device group 110 and network device 120 can be effectively reduced.
In an exemplary embodiment, network device 120 may configure 205 its resource control connections with terminal device group 110. For example, network device 120 may configure a Radio Link Control (RLC) layer for the resource control connection. Network device 120 may also configure a Medium Access Control (MAC) layer for the resource control connection. Alternatively or additionally, network device 120 may configure the Physical (PHY) layer for the resource control connection. Network device 120 may configure any one or more of the RLC, MAC, and PHY layers described above based on the corresponding parameters.
In some embodiments, network device 120 may also determine information related to the resource control connection (which may be referred to as "second information"). For example only, the information related to the resource control connection may include an identifier (which may be referred to as a "second identifier") of the resource control connection, e.g., a Logical Channel Identification (LCID). The information related to the resource control connection may further include an identifier (which may be referred to as a "third identifier") related to the terminal device group 110, for example, a Radio Network Temporary Identity (RNTI). It will be appreciated that the information relating to the resource control connection may comprise any specific information identifying the resource control connection. The information related to the resource control connection may also include any specific information identifying the group of terminal devices 110.
Since the resource control connection between network device 120 and terminal device group 110 is pre-configured, if a terminal device in terminal device group 110 wants to transmit data, the corresponding signaling of the connection established for the transmission can be omitted, thereby reducing the signaling overhead between network device 120 and terminal device group 110. In addition, since a new resource control connection does not need to be established, data can be immediately transmitted, thereby reducing delay in data transmission.
After terminal device 110-1 obtains the configuration of the control resource connection and the information related to the control resource connection, terminal device 110-1 may establish a corresponding radio access network protocol stack. In order to support point-to-multipoint transmission without increasing complexity, a transparent mode is applied on the RLC entity for the resource control connection, and a transparent mode is also applied by the Packet Data Convergence (PDCP) sublayer.
In some embodiments, network device 120 may send 215 a configuration for accessing the channel to group of terminal devices 110. As an example, the network device 120 may configure the access channel in the same manner as a Physical Random Access Channel (PRACH). Alternatively, network device 120 may determine the configuration of the access channel, such as the density of the access channel, based on the traffic load in the group of terminal devices 110. The access channel may be utilized by the terminal devices in terminal device group 110 to transmit information to network device 120 via the resource control connection. For example, terminal device 110-1 may transmit a first uplink data packet on the access channel.
In an exemplary embodiment, network device 120 may send 220 control information for the access channel to group of terminal devices 110. Since the access channel is not dedicated to a certain terminal device but is shared by the terminal device group 110, there is a possibility that the access channel may collide with each other. Network device 120 may determine the probability of successful transmission on the access channel based on historical communications for group of terminal devices 110. For example, network device 120 may determine the probability based on historical traffic for group of terminal devices 110. Network device 120 may also dynamically determine the probability based on the number of terminal devices in the current set of terminal devices 110 that are transmitting data. Network device 120 may broadcast control information for the access channel on a Physical Downlink Control Channel (PDCCH). For example, network device 120 may broadcast the probabilities in Uplink Control Information (UCI). Alternatively or additionally, the network device 120 may also broadcast a modulation and coding scheme for uplink transmissions in the UCI.
Terminal device 110-1 may determine 225 whether to transmit on the access channel. An exemplary determination method of the terminal device 110-1 will be described below with reference to fig. 5. If the above determination result is that terminal device 110-1 can transmit on the access channel, terminal device 110-1 sends the first information to network device 120 via resource connection control. If the above determination result is that terminal device 110-1 may not transmit on the access channel currently, terminal device 110-1 may send the first information to network device 120 on the RACH. In some embodiments, terminal device 110-1 may also wait a certain amount of time to again make a determination 225 whether to transmit on the access channel. Terminal device 110-1 sends 230 the first information to network device 120 via the resource connection control. The first information includes an identifier associated with terminal device 110-1. As described above, terminal device 110-1 may establish a corresponding radio access network protocol stack after obtaining the configuration of the control resource connection. The group of terminal devices 110 has a Protocol Data Unit (PDU) session specific to a certain terminal device. The PDU session may be associated with the resource control connection. Each PDU session may contain an identifier of the corresponding terminal device.
If data is to be transferred between terminal device 110-1 and network device 120 via a resource control connection, a separate enhanced service data adaptation protocol (eSDAP) layer is created. The eDAP layer can map between quality of service (QoS) flows and data radio bearers. The eDAP layer may label the IDs (QFIs) of QoS flows in uplink and downlink packets. The eSDAP can mark in the uplink information and downlink information an identifier of the terminal device associated with transmitting/receiving the information. For example, if terminal device 110-11 sends information to network device 120, the eDAP layer can tag the information with an identifier for terminal device 110-11.
In some embodiments, terminal device 110-1 may monitor 250 for an acknowledgement of the first information. Terminal device 110-1 may resend 255 the first information if terminal device 110-1 does not monitor the determination from network device 120 for the first information within a predetermined time. For example, terminal device 110-1 may set a timer after transmission 230, and if the timer expires and terminal device 110-1 has not received an acknowledgement, terminal device 110-1 may retransmit the first information on the access channel. Alternatively, terminal device 110-1 may also transmit the first information again on the Random Access Channel (RACH).
In some embodiments, network device 120 may send 260 third information to terminal device 110-1. As described above, the third information can encapsulate an identifier associated with terminal device 110-1 at the eSDAP layer. Upon receiving the third information, terminal device 110-1 may determine 265 whether the third information is relevant thereto based on an identifier included therein. After terminal device 110-1 determines that the third information includes the identifier associated with terminal device 110-1, terminal device 110-1 may process 270 the third information. If network device 120 transmits the third information in a broadcast, other terminal devices in end-point group 110 (e.g., end-point device 110-2) may also receive the third information. If terminal device 110-2 receives the third information, terminal device 110-2 determines that the identifier included in the third information is not the identifier associated with terminal device 110-2, and terminal device 110-2 discards the third information.
Certain example embodiments according to the present disclosure will now be described in detail. Fig. 3 illustrates a flow diagram of an example method 300 in accordance with certain embodiments of the present disclosure. Method 300 may be implemented at network device 120 as shown in fig. 1.
At block 310, network device 120 receives first information from a first terminal device 110-1 in terminal device group 110 via a resource control connection between network device 120 and terminal device group 110. The first information includes a first identifier associated with terminal device 110-1.
In some embodiments, the resource control connection may be pre-configured. For example, network device 120 may configure a resource control connection between it and group of terminal devices 110. For example, network device 120 may configure a Radio Link Control (RLC) layer for the resource control connection. Network device 120 may also configure a Medium Access Control (MAC) layer for the resource control connection. Alternatively or additionally, network device 120 may configure the Physical (PHY) layer for the resource control connection. Network device 120 may configure any one or more of the RLC, MAC, and PHY layers described above based on the corresponding parameters.
In an example embodiment, network device 120 may broadcast second information related to the resource control connection to group of terminal devices 110. For example, the second information may include a second identifier of the control resource connection. Additionally or alternatively, the second information may also include a third identifier related to the group of terminal devices 110.
In some embodiments, network device 120 may send a configuration for an access channel to group of terminal devices 110. As an example, the network device 120 may configure the access channel in the same manner as a Physical Random Access Channel (PRACH). Alternatively, network device 120 may determine the configuration of the access channel, such as the density of the access channel, based on the traffic load in the group of terminal devices 110.
Wherein p is0Representing the probability of successful transmission on the access channel, M representing the number of terminal devices in the terminal device group 110, i and j representing the labels of the terminal devices, n (t) representing the number of traffic bursts that will arrive at the terminal device during the time interval t, Pi{ n (t) ═ 0} represents the probability distribution obeyed by the number of traffic bursts that will arrive at the terminal device within the duration interval of t. In certain embodiments, Pi{ n (t) ═ 0} may be determined by network device 120 based on historical communications for terminal device group 110. As the number of terminals in the terminal device group 110 communicating with the network device 120 changes, p0Dynamically changing. Network device 120 may change p0And is sent to the terminal devices in the terminal device group 110 from time to time. It will be appreciated that the above probabilities may be determined by any suitable method. The above equation (1) is merely exemplary and not limiting.
The control information may also include a modulation and coding scheme used for uplink transmission. In certain embodiments, a modulation industry coding scheme for uplink transmission may be transmitted on a PDCCH channel, which may be included in Uplink Control Information (UCI).
At block 320, network device 120 processes the first information in association with terminal device 110-2 based on the first identifier. For example only, network device 120 may assign the first information to the corresponding SDAP for processing based on the first identifier.
At block 330, network device 120 sends an acknowledgement for the first information to terminal device 110-1 based on the first identifier. In some embodiments, network device 120 may also send information to terminal device 110-1 indicating the transmission resources allocated to terminal device 110-1. For example, network device 120 may transmit information of the dedicated transmission resource allocated to terminal device 110-1.
In some embodiments, network device 120 may send 260 third information to terminal device 110-1. As described above, the third information can encapsulate an identifier associated with terminal device 110-1 at the eSDAP layer.
Fig. 4 illustrates a flow diagram of an example method 400 in accordance with certain embodiments of the present disclosure. Method 400 may be implemented at any of the terminal devices in group of terminal devices 110 as shown in fig. 1. For purposes of illustration only, method 400 is described below as being implemented at terminal device 110-1.
At block 410, terminal device 110-1 sends the first information to network device 120 via a resource control connection between network device 120 and terminal device group 110. The first information includes a first identifier associated with terminal device 110-1.
In some embodiments, the resource control connection may be pre-configured. For example, terminal device 110-1 may obtain a configuration of the resource control connection. Terminal device 110-1 may receive the configuration of the resource control connection from the network device. Terminal device 110-1 may also access a memory storing a configuration of the resource control connection to obtain the configuration. The configuration may include a configuration of a Radio Link Control (RLC) layer for the resource control connection. The above configuration may also include a configuration of a Medium Access Control (MAC) layer for the resource control connection. Alternatively or additionally, the above configuration comprises a configuration of a Physical (PHY) layer for the resource control connection.
In some embodiments, terminal device 110-1 may receive second information related to the resource control connection. For example, the second information may include a second identifier that controls the resource connection. Additionally or alternatively, the second information may also include a third identifier related to the group of terminal devices 110.
As described above, terminal device 110-1 may determine whether to transmit on the access channel. One decision method 500 will now be exemplarily described with reference to fig. 5. It is to be appreciated that the method 500 is merely exemplary.
Terminal device 110-1 receives control information for an access channel from network device 120 at block 510. Information transmitted via the control resource connection may be transmitted on the channel. Terminal device 110-1 may also receive control information for the access channel from network device 120 indicating at least a probability of successful transmission on the access channel. As described above, the success probability may be denoted as p0。
At block 520, terminal device 110-1 generates a random number p for the (0,1) interval as a predetermined threshold. The random number p may be generated by any method. It is understood that in some embodiments, terminal device 110-1 may also use a preset value as the threshold.
At block 530, terminal device 110-1 may determine whether the random number p is greater than the probability value p0. If the random number p is less than the probability value p0Terminal device 110-1 may transmit the first information on the RACH at block 540. Since a resource control connection such as RRC is already established, the process of creating RACH does not create a resource control connection again, thereby reducing signaling overhead. In some embodiments, if the random number p is less than the probability value p0The terminal device 110-1 may wait for a period of time to generate the random number again for determination.
If the random number p is greater than the probability value p0Terminal device 110-1 will transmit the first information on the access channel at block 550. Terminal device 110-1 may encapsulate the second identifier of the resource control connection and the first identifier of terminal device 110-1 into the first information. Terminal device 110-1 will schedule a Buffer Status Report (BSR) on the access channel if there is data remaining to be transmitted in the buffer of terminal device 110-1.
Returning now to fig. 4, at block 420, terminal device 110-1 monitors for an acknowledgement from network device 120 for the first information. Terminal device 110-1 may receive information from network device 120 indicating transmission resources allocated to terminal device 110-1 in some embodiments. For example, terminal device 110-1 may receive information of the dedicated transmission resource allocated to terminal device 110-1.
Referring again to fig. 5, at block 560, terminal device 110-1 determines that an acknowledgement from network device 120 for the first information was received within a predetermined time.
If terminal device 110-1 does not receive the acknowledgement within the predetermined time, terminal device 110-1 will resend the first information at block 570. In some embodiments, terminal device 110-1 may retransmit the first information on the RACH. Alternatively, terminal device 110-1 may still retransmit the first information on the access channel. In some embodiments, terminal device 110-1 may set a timer. Terminal device 110-1 will cancel the timer if an acknowledgement is received from network device 120 before the timer expires. If an acknowledgement from network device 120 is not received after the timer expires, which means that there may be a collision on the access channel, network device 120 cannot successfully decode the first information and therefore network device 120 cannot send an acknowledgement, terminal device 110-1 will retransmit the first information.
If terminal device 110-1 receives the acknowledgement within the predetermined time, terminal device 110-1 may continue to transmit information using the transmission resources allocated to terminal device 110-1 at block 580.
In some embodiments, terminal device 110-1 may receive the third information from network device 120. Network device 110-1 may determine whether the third information is relevant thereto based on the identifier included therein. After terminal device 110-1 determines that the third information includes the identifier associated with terminal device 110-1, terminal device 110-1 may process 270 the third information. Terminal device 110-1 may discard the third information if terminal device 110-1 determines that the information does not contain an identifier associated with terminal device 110-1.
Fig. 6 is a block diagram of a device 600 in which embodiments according to the present disclosure may be implemented. As shown in fig. 6, the device 600 includes one or more processors 610, one or more memories 620 coupled to the processors 610, one or more transmitters and/or receivers 640 coupled to the processors 610.
The processor 610 may be of any suitable type suitable to the local technical environment, and the processor 610 may include, by way of non-limiting example, one or more general purpose computers, special purpose computers, microprocessors, digital signal processors, and processors based on a multi-core processor architecture. The device 600 may have multiple processors, such as application specific integrated circuit chips, that are synchronized in time with the main processor.
The memory 620 may be of any suitable type suitable to the local technical environment and may be implemented using any suitable data storage technology, including but not limited to non-transitory computer-readable media, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems.
The memory 620 stores at least a portion of the instructions 630. The transmitter/receiver 640 may be adapted for two-way communication. The transmitter/receiver 640 has at least one antenna for communication and the transmitter/receiver 640 may support fiber optic communication, but in practice there may be several access nodes referred to by the present disclosure. The communication interface may represent any necessary interface for communicating with other network elements.
The instructions 630 are assumed to comprise program instructions that, when executed by the associated processor 610, cause the device 600 to operate in accordance with the embodiments described in this disclosure with reference to fig. 2-4. That is, embodiments of the disclosure may be implemented by the processor 610 of the device 600 as executed by computer software, or by hardware, or by a combination of software and hardware.
In general, the various example embodiments of this disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Certain aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While aspects of embodiments of the disclosure have been illustrated or described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
By way of example, embodiments of the disclosure may be described in the context of machine-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform particular tasks or implement particular abstract data types. In various embodiments, the functionality of the program modules may be combined or divided between program modules as described. Machine-executable instructions for program modules may be executed within local or distributed devices. In a distributed facility, program modules may be located in both local and remote memory storage media.
Computer program code for implementing the methods of the present disclosure may be written in one or more programming languages. These computer program codes may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the computer or other programmable data processing apparatus, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. The program code may execute entirely on the computer, partly on the computer, as a stand-alone software package, partly on the computer and partly on a remote computer or entirely on the remote computer or server.
In the context of this disclosure, a machine-readable medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination thereof. More detailed examples of a machine-readable storage medium include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical storage device, a magnetic storage device, or any suitable combination thereof.
Additionally, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking or parallel processing may be beneficial. Likewise, while the above discussion contains certain specific implementation details, this should not be construed as limiting the scope of any invention or claims, but rather as describing particular embodiments that may be directed to particular inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims (34)
1. A method of communication, comprising:
receiving, at a network device, first information from a first terminal device of a group of terminal devices via a resource control connection between the network device and the group of terminal devices, the first information including a first identifier associated with the first terminal device for determining the first terminal device, the resource control connection being shared by the group of terminal devices;
processing the first information in association with the first terminal device based on the first identifier; and
transmitting an acknowledgement for the first information to the first terminal device based on the first identifier.
2. The method of claim 1, further comprising:
configuring the resource control connection; and
broadcasting second information relating to the resource control connection to the group of terminal devices, the second information comprising at least one of:
a second identifier of the resource control connection, an
A third identifier associated with the group of terminal devices.
3. The method of claim 2, wherein configuring the resource control connection comprises configuring at least one of: a radio link control layer for the resource control connection, a medium access control layer for the resource control connection, and a physical layer for the resource control connection.
4. The method of claim 1, further comprising:
sending a configuration for an access channel to the group of terminal devices, information transmitted via the resource control connection being conveyed on the access channel;
sending control information for the access channel to the set of terminal devices, the control information indicating at least a probability of successful transmission on the access channel, the probability being determined based on historical communications for the set of terminal devices.
5. The method of claim 4, wherein the control information further comprises a modulation and coding scheme for uplink transmission.
6. The method of claim 1, wherein processing the first information comprises:
based on the first identifier, assign the first information to a corresponding enhanced service data adaptation protocol (eDAP) for processing.
7. The method of claim 1, wherein sending an acknowledgement for the first information comprises:
transmitting information indicating the transmission resources allocated to the first terminal device to the terminal device.
8. The method of claim 1, further comprising:
broadcasting third information for the first terminal device to the group of terminal devices via the resource control connection, the third information comprising the first identifier associated with the first terminal device.
9. A method for communication, comprising:
at a first terminal device of a set of terminal devices, sending first information to a network device via a resource control connection between the network device and the set of terminal devices, the first information comprising a first identifier associated with the first terminal device for use in determining the first terminal device by the network device, the resource control connection being shared by the set of terminal devices; and
monitoring for an acknowledgement from the network device for the first information.
10. The method of claim 9, further comprising:
obtaining a configuration of the resource control connection; and
receiving second information related to the resource control connection, the second information comprising at least one of:
a second identifier of the resource control connection, an
A third identifier associated with the group of terminal devices.
11. The method of claim 10, wherein obtaining the configuration of the resource control connection comprises obtaining a configuration of at least one of: a radio link control layer for the resource control connection, a medium access control layer for the resource control connection, and a physical layer for the resource control connection.
12. The method of claim 9, wherein sending first information to the network device comprises:
receiving a configuration for an access channel from the network device, information transmitted via the resource control connection being transmitted on the access channel;
receiving control information for the access channel from the network device, the control information indicating at least a probability of successful transmission on the access channel, the probability determined based on historical communications for the set of terminal devices; and
transmitting the first information on the access channel in response to the probability being greater than a predetermined threshold.
13. The method of claim 12, wherein the control information further comprises a modulation and coding scheme for uplink transmission.
14. The method of claim 9, further comprising:
resending the first information in response to not monitoring an acknowledgement from the network device to the first information within a predetermined period of time.
15. The method of claim 9, wherein monitoring for acknowledgements for first information comprises:
receiving information from the network device indicating transmission resources allocated to the first terminal device.
16. The method of claim 9, further comprising:
receiving third information from the network device via the resource control connection;
determining whether an identifier included in the third information is associated with the first terminal device;
processing the third information in response to the identifier being associated with the first terminal device.
17. A network device, comprising:
at least one processor; and
a memory coupled with the at least one processor having instructions stored therein that, when executed by the at least one processor, cause the network device to perform acts comprising:
receiving, from a first terminal device of a group of terminal devices via a resource control connection between the network device and the group of terminal devices, first information comprising a first identifier associated with the first terminal device for determining the first terminal device, the resource control connection being shared by the group of terminal devices;
processing the first information in association with the first terminal device based on the first identifier; and
transmitting an acknowledgement for the first information to the first terminal device based on the first identifier.
18. The network device of claim 17, wherein the actions further comprise:
configuring the resource control connection; and
broadcasting second information relating to the resource control connection to the group of terminal devices, the second information comprising at least one of:
a second identifier of the resource control connection, an
A third identifier associated with the group of terminal devices.
19. The network device of claim 18, wherein configuring the resource control connection comprises configuring at least one of: a radio link control layer for the resource control connection, a medium access control layer for the resource control connection, and a physical layer for the resource control connection.
20. The network device of claim 17, wherein the actions further comprise:
sending a configuration for an access channel to the group of terminal devices, information transmitted via the resource control connection being conveyed on the access channel;
sending control information for the access channel to the set of terminal devices, the control information indicating at least a probability of successful transmission on the access channel, the probability being determined based on historical communications for the set of terminal devices.
21. The network device of claim 20, wherein the control information further comprises a modulation and coding scheme for uplink transmission.
22. The network device of claim 17, wherein processing the first information comprises:
based on the first identifier, assign the first information to a corresponding enhanced service data adaptation protocol (eDAP) for processing.
23. The network device of claim 17, wherein sending an acknowledgement for the first information comprises:
transmitting information indicating the transmission resources allocated to the first terminal device to the terminal device.
24. The network device of claim 17, wherein the actions further comprise:
broadcasting third information for the first terminal device to the group of terminal devices via the resource control connection, the third information comprising the first identifier associated with the first terminal device.
25. A terminal device, comprising:
at least one processor; and
a memory coupled with the at least one processor, the memory having instructions stored therein that, when executed by the at least one processor, cause the terminal device to perform acts comprising:
at a terminal device of a set of terminal devices, sending first information to a network device via a resource control connection between the network device and the set of terminal devices, the first information comprising a first identifier associated with the terminal device for determining the terminal device by the network device, the resource control connection being shared by the set of terminal devices; and
monitoring for an acknowledgement from the network device for the first information.
26. The terminal device of claim 25, the acts further comprising:
obtaining a configuration of the resource control connection; and
receiving second information related to the resource control connection, the second information comprising at least one of:
a second identifier of the resource control connection, and
a third identifier associated with the group of terminal devices.
27. The terminal device of claim 26, wherein obtaining the configuration of the resource control connection comprises obtaining a configuration of at least one of: a radio link control layer for the resource control connection, a medium access control layer for the resource control connection, and a physical layer for the resource control connection.
28. The terminal device of claim 25, wherein sending first information to the network device comprises:
receiving a configuration for an access channel from the network device, information transmitted via the resource control connection being transmitted on the access channel;
receiving control information for the access channel from the network device, the control information indicating at least a probability of successful transmission on the access channel, the probability determined based on historical communications for the set of terminal devices; and
transmitting the first information on the access channel in response to the probability being greater than a predetermined threshold.
29. The terminal device of claim 28, wherein the control information further comprises a modulation and coding scheme for uplink transmission.
30. The terminal device of claim 25, wherein the actions further comprise:
resending the first information in response to not monitoring an acknowledgement from the network device to the first information within a predetermined period of time.
31. The terminal device of claim 25, wherein monitoring for acknowledgements for first information comprises:
receiving information from the network device indicating transmission resources allocated to the terminal device.
32. The terminal device of claim 25, wherein the actions further comprise:
receiving third information from the network device via the resource control connection;
determining whether an identifier included in the third information is associated with the terminal device;
processing the third information in response to the identifier being associated with the terminal device.
33. A computer-readable medium having instructions stored thereon, which, when executed by at least one processing unit of a machine, cause the machine to implement the method recited by any one of claims 1-8.
34. A computer-readable medium having instructions stored thereon, which, when executed by at least one processing unit of a machine, cause the machine to implement the method recited by any of claims 9-16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711423817.XA CN109963340B (en) | 2017-12-25 | 2017-12-25 | Method, apparatus and computer readable medium for reducing signaling overhead and data latency |
| PCT/CN2018/123536 WO2019128997A1 (en) | 2017-12-25 | 2018-12-25 | Method, device and computer-readable medium for reducing signaling overhead and data latency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711423817.XA CN109963340B (en) | 2017-12-25 | 2017-12-25 | Method, apparatus and computer readable medium for reducing signaling overhead and data latency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109963340A CN109963340A (en) | 2019-07-02 |
| CN109963340B true CN109963340B (en) | 2022-07-01 |
Family
ID=67021317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711423817.XA Active CN109963340B (en) | 2017-12-25 | 2017-12-25 | Method, apparatus and computer readable medium for reducing signaling overhead and data latency |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109963340B (en) |
| WO (1) | WO2019128997A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11726940B2 (en) * | 2021-08-06 | 2023-08-15 | Lear Corporation | System for communicating with removable components |
| WO2023220852A1 (en) * | 2022-05-16 | 2023-11-23 | Qualcomm Incorporated | Probability-based random access procedures |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149174A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Method and system for uploading machine service data of machine type communication (MTC) system |
| CN103517404A (en) * | 2012-06-26 | 2014-01-15 | 中兴通讯股份有限公司 | Method and system for communication of machine type communication user equipment |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977416B (en) * | 2010-05-19 | 2015-12-16 | 中兴通讯股份有限公司 | A kind of overload controlling method of MTC device and system |
| CN102378302B (en) * | 2010-08-12 | 2014-12-17 | 华为技术有限公司 | Network access method and system |
| CN102378389B (en) * | 2010-08-20 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of cut-in method of Physical Random Access Channel and device |
| EP2622923A1 (en) * | 2010-09-27 | 2013-08-07 | Fujitsu Limited | Radio bearers for machine type communication |
| US8787212B2 (en) * | 2010-12-28 | 2014-07-22 | Motorola Solutions, Inc. | Methods for reducing set-up signaling in a long term evolution system |
| CN103491643B (en) * | 2012-06-12 | 2018-03-27 | 电信科学技术研究院 | The method for building up and equipment of group communication connection |
| CN104066078A (en) * | 2013-03-21 | 2014-09-24 | 中兴通讯股份有限公司 | Method and system for distributing equipment identifiers |
| CN106686762A (en) * | 2015-11-06 | 2017-05-17 | 电信科学技术研究院 | State switching and state switching control methods and devices |
| CN106961722B (en) * | 2016-01-12 | 2018-09-11 | 展讯通信（上海）有限公司 | The transmission method of data and base station |
| US10701677B2 (en) * | 2016-05-12 | 2020-06-30 | Samsung Electronics Co., Ltd. | Method and apparatus for uplink resource assignment for cellular network using unlicensed bands |
-
2017
- 2017-12-25 CN CN201711423817.XA patent/CN109963340B/en active Active
-
2018
- 2018-12-25 WO PCT/CN2018/123536 patent/WO2019128997A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102149174A (en) * | 2010-02-10 | 2011-08-10 | 中兴通讯股份有限公司 | Method and system for uploading machine service data of machine type communication (MTC) system |
| CN103517404A (en) * | 2012-06-26 | 2014-01-15 | 中兴通讯股份有限公司 | Method and system for communication of machine type communication user equipment |
Non-Patent Citations (1)
| Title |
|---|
| Low latency and low overhead transmission for NR;Huawei, HiSilicon;《3GPP TSG-RAN WG2 Meeting #93bis R2-162662》;20160415;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109963340A (en) | 2019-07-02 |
| WO2019128997A1 (en) | 2019-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102270541B1 (en) | Method and apparatus for wireless communication in wireless communication system | |
| CN107734703B (en) | Resource scheduling method and device | |
| KR101870851B1 (en) | Method and device for triggering buffer state reporting bsr | |
| US9295040B2 (en) | Packet scheduling in communications | |
| CN111727651A (en) | 2-step SCI Transmission of NR V2X | |
| CN108418661B (en) | Data transmission method and device | |
| EP3603175B1 (en) | Apparatus and method for transmitting packet data units | |
| US20210385851A1 (en) | Data transmission method of internet of vehicles, sending terminal and network-side device | |
| CN114208083A (en) | Method and device for releasing sidelink retransmission resource in NR V2X | |
| CN115280859A (en) | Method and apparatus for performing sidelink communication based on sidelink CG resource in NR V2X | |
| CN108322939B (en) | Method and apparatus for wireless communication system supporting multiple physical layer methods | |
| EP3984290A1 (en) | Transceiver device and scheduling device | |
| KR20230124592A (en) | SL DRX operation method considering mode 1 operation of transmitting terminal in NR V2X | |
| CN109963340B (en) | Method, apparatus and computer readable medium for reducing signaling overhead and data latency | |
| CN113544987B (en) | Communication method, device, equipment and readable storage medium | |
| KR102665379B1 (en) | Method and device for selecting candidate resources when operating SL DRX in NR V2X | |
| KR20240038714A (en) | Method and device for performing SL DRX operation in NR V2X | |
| US11503664B2 (en) | Method, system and computer programs for the transmission of infrequent small data in a telecommunication system | |
| JP2024504959A (en) | Method and apparatus for performing prioritization procedure in NR V2X | |
| JP2023526459A (en) | Enhanced buffer status reporting | |
| CN115039489A (en) | Method and apparatus for requesting retransmission of resources in NR V2X | |
| US20230362923A1 (en) | Methods, base station and terminal device for uplink transmission | |
| KR102591454B1 (en) | Method and device for performing sidelink retransmission in NR V2X | |
| JP7373046B2 (en) | Timer-based IUC operation method and device in NR V2X | |
| KR20240053054A (en) | Method and device for operating SL DRX active time of mode 1 terminal in NR V2X |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |