WO2023116429A1 - 随机接入方法及装置 - Google Patents
随机接入方法及装置 Download PDFInfo
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Definitions
- the present application relates to the communication field, and in particular to a random access method and device.
- 5G mobile communication system With the rapid development of wireless communication, in order to meet and enrich people's growing needs, the fifth generation (5th generation, 5G) mobile communication system came into being.
- IoT Internet of Things
- M2M machine to machine
- Machines can transmit information and data to each other through wireless networks.
- the existing IoT technology proposes narrowband IoT (narrow band, NB-IoT), reduced capability (reduced capability, RedCap), etc.
- NB-IoT narrowband IoT
- RedCap reduced capability
- the power consumption is still above the milliwatt level, and it is impossible to further save power consumption.
- Passive IoT technology can achieve microwatt-level power consumption and ultra-low cost, and has become an important branch of the future evolution of cellular technology.
- the IoT terminal device captures and collects energy and transmits the information stored by itself by collecting radio waves transmitted from the network side.
- RFID radio frequency identification
- the embodiment of the present application provides a random access method and device, which can realize the integrated use of the RFID technology and the mobile network.
- a random access method includes: the first device sends a first inventory command to the second device or the third device, the first device receives a random access request message from the second device, and the first device sends the second device or the third device a random access request message.
- the third device sends a random access success message.
- the first inventory command is used to instruct one or more second devices to perform random access
- the random access request message is used to request access to the first device.
- the random access success message is used to indicate that the second device has successfully accessed the first device.
- the random access success message includes application layer data, and/or the first inventory command includes application layer data.
- the first device sends a first inventory command to the second device, and receives a random access request message from the second device.
- the first inventory command is used to instruct one or more second devices to perform random access
- the random access request message is used to request access to the first device
- the first device sends a random access success message to the second device.
- the first inventory command includes application layer data
- the random access success message includes application layer data.
- the first device may send the first inventory command together with the application layer data to the second device, and/or send the random access success message together with the application layer data to the second device.
- the data of the application layer may include instructions of the application layer, such as read instructions, write instructions, read and write instructions, and read identifiers.
- the first inventory command may further include one or more group identification information, where one piece of group identification information is used to identify one or more second devices.
- a certain group of second devices may be instructed to perform related operations through the group identification information.
- one or more group identification information corresponds to one or more application layer data.
- the data of the application layer may be carried in a radio resource control (radio resource control, RRC) message or a media access control (media access control, MAC) data packet.
- RRC radio resource control
- MAC media access control
- the data of the application layer may be encapsulated in a container (container) of the RRC message, or encapsulated in a MAC data packet sent together with the first inventory command.
- the first inventory command may include parameter information and/or time information.
- the parameter information may include data transmission rate, repetition times, and/or coverage level, and the time information is used to indicate a period of time.
- parameter information and/or time information may be received by the second device from the first device or the third device.
- the random access method provided in the first aspect may further include: after the first inventory command is sent and no random access request message is received within the first time period, The first device continues to wait for the third time period, or stops waiting and sends the next command.
- the first time period is determined by the first device according to the encoding manner and/or the coverage level, or the first time period is preset.
- the third time period is preset.
- a random access method includes: the second device receives a first inventory command from the first device or the third device, the second device sends a random access request message to the first device, and the second device receives a command from the first device or the third device random access success message.
- the first inventory command is used to instruct one or more second devices to perform random access.
- the random access request message is used to request access to the first device.
- the random access success message is used to indicate that the second device has successfully accessed the first device.
- the random access success message includes application layer data, and/or the first inventory command includes application layer data.
- the first inventory command may further include one or more group identification information, where one piece of group identification information is used to identify one or more second devices.
- one or more group identification information corresponds to one or more application layer data.
- the data of the application layer may be carried in a radio resource control RRC message or a medium access control MAC data packet.
- the first inventory command may include parameter information and/or time information, where the parameter information includes data transmission rate, repetition times, and/or coverage level, and the time information is used to indicate a period of time.
- the random access method provided by the second aspect may further include: when sending a random access request message and waiting for a second period of time without receiving a response message, the second device It is determined that this random access fails.
- the second time period is the time for the second device to wait for the response message after sending the message, and the second time period is determined according to parameter information or time information, or the second time period is preset.
- the random access method provided in the second aspect may further include: the second device receives the added time information and/or added time indication information from the third device.
- the increase time information can be used to indicate the time required for data transmission between the third device and the first device
- the increase time indication information can be used to indicate whether to increase the time between the third device and the first device when determining the second time period.
- the time required for data transmission, the second time period is the time for the second device to wait for a response message after sending the message.
- a random access device in a third aspect, includes: a sending module and a receiving module.
- a sending module configured to send the first inventory command to the second device or the third device.
- the first inventory command is used to instruct one or more second devices to perform random access.
- a receiving module configured to receive a random access request message from the second device. Wherein, the random access request message is used to request access to the random access device.
- the sending module is further configured to send a random access success message to the second device or the third device.
- the random access success message is used to indicate that the second device has successfully accessed the random access apparatus.
- the random access success message includes application layer data, and/or the first inventory command includes application layer data.
- the first inventory command further includes one or more group identification information, and one piece of group identification information is used to identify one or more second devices.
- one or more group identification information corresponds to one or more application layer data.
- data of the application layer is carried in a radio resource control RRC message or a medium access control MAC data packet.
- the first inventory command includes parameter information and/or time information, where the parameter information includes data transmission rate, repetition times, and/or coverage level, and the time information is used to indicate a period of time.
- the receiving module is further configured to continue to wait for the third time period, or Stop waiting, send the module, also used to send the next command.
- the first time period is determined according to the encoding method and/or the coverage level, or the first time period is preset.
- the third time period is preset.
- the receiving module and the sending module can be set separately, or can be integrated into one module, that is, the transceiver module. This application does not specifically limit the specific implementation manners of the receiving module and the sending module.
- the random access device described in the third aspect may further include a processing module and a storage module, where programs or instructions are stored in the storage module.
- the processing module executes the program or instruction
- the random access device described in the third aspect can execute the method described in the first aspect.
- the random access device described in the third aspect may be the first device, such as an access network device, or a read-write device, etc., or it may be a chip (system) or other components that can be set on the first device or components, which is not limited in this application.
- a random access device in a fourth aspect, includes: a sending module and a receiving module.
- the receiving module is configured to receive the first inventory command from the first device or the third device. Wherein, the first inventory command is used to instruct one or more random access devices to perform random access.
- a sending module configured to send a random access request message to the first device.
- the random access request message is used to request access to the first device.
- the receiving module is further configured to receive a random access success message from the first device or the third device.
- the random access success message is used to indicate that the random access apparatus has successfully accessed the first device.
- the random access success message includes application layer data, and/or the first inventory command includes application layer data.
- the first inventory command further includes one or more group identification information, and one piece of group identification information is used to identify one or more random access apparatuses.
- one or more group identification information corresponds to one or more application layer data.
- data of the application layer is carried in a radio resource control RRC message or a medium access control MAC data packet.
- the first inventory command includes parameter information and/or time information, where the parameter information includes data transmission rate, repetition times, and/or coverage level, and the time information is used to indicate a period of time.
- the random access device provided in the fourth aspect further includes: a processing module.
- the processing module is configured to determine that the random access fails this time.
- the second time period is the time when the random access device waits for a response message after sending a message, and the second time period is determined according to parameter information or time information, or the second time period is preset.
- the receiving module is configured to receive the added time information and/or added time indication information from the third device.
- the added time information is used to indicate the time required for data transmission between the third device and the first device
- the added time indication information is used to indicate whether to increase the time between the third device and the first device when determining the second time period.
- the second time period is the time for the random access device to wait for a response message after sending the message.
- the receiving module and the sending module can be set separately, or can be integrated into one module, that is, the transceiver module. This application does not specifically limit the specific implementation manners of the receiving module and the sending module.
- the random access apparatus described in the fourth aspect may further include a processing module and a storage module, where programs or instructions are stored in the storage module.
- the processing module executes the program or instruction
- the random access apparatus described in the fourth aspect can execute the method described in the second aspect.
- the random access device described in the fourth aspect may be a second device, such as a terminal device, or a chip (system) or other components or components that can be configured in the second device, and this application does not Do limited.
- a random access device in a fifth aspect, includes: a processor, the processor is coupled with a memory, and the memory is used to store computer programs.
- the processor is configured to execute the computer program stored in the memory, so that the random access method described in any possible implementation manner of the first aspect to the second aspect is executed.
- the random access apparatus described in the fifth aspect may further include a transceiver.
- the transceiver can be a transceiver circuit or an input/output port.
- the transceiver can be used for the random access device to communicate with other devices.
- the input port can be used to realize the receiving function involved in the first aspect to the second aspect
- the output port can be used to realize the sending function involved in the first aspect to the second aspect
- the random access apparatus described in the fifth aspect may be the first device or the second device, or a chip or a chip system provided inside the first device or the second device.
- a communication system in a sixth aspect, includes the random access device according to the third aspect and the random access device according to the fourth aspect.
- the communication system includes the random access apparatus according to the fifth aspect for realizing the method according to the first aspect and the random access device according to the fifth aspect for realizing the method according to the second aspect device.
- the communication system may further include a third device.
- a chip system in a seventh aspect, includes a logic circuit and an input/output port.
- the logic circuit is used to realize the processing function involved in the first aspect to the second aspect
- the input/output port is used to realize the sending and receiving function involved in the first aspect to the second aspect.
- the input port can be used to realize the receiving function involved in the first aspect to the second aspect
- the output port can be used to realize the sending function involved in the first aspect to the second aspect.
- the chip system further includes a memory, which is used for storing program instructions and data for realizing the functions involved in the first aspect to the second aspect.
- the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
- a computer-readable storage medium stores a computer program or an instruction; when the computer program or instruction is run on a computer, any one of the first aspect to the second aspect The random access method described in a possible implementation manner is executed.
- a ninth aspect provides a computer program product, including a computer program or an instruction, when the computer program or instruction is run on a computer, the random access described in any one of the possible implementations from the first aspect to the second aspect is provided.
- the input method is executed.
- FIG. 1 is a schematic diagram of the architecture of some communication systems provided by the embodiments of the present application.
- FIG. 2 is a schematic structural diagram of another communication system provided by an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of an RFID system provided by an embodiment of the present application.
- FIG. 4 is a schematic diagram of an interaction process between a read-write device and a tag device provided in an embodiment of the present application
- FIG. 5 is a schematic diagram of a storage area of a label device provided in an embodiment of the present application.
- FIG. 6 is a schematic flowchart of a random access method provided in an embodiment of the present application.
- FIG. 7 is a schematic flowchart of another random access method provided by the embodiment of the present application.
- FIG. 8 is a schematic diagram of timing provided by the embodiment of the present application.
- FIG. 9 is a schematic structural diagram of a random access device provided in an embodiment of the present application.
- FIG. 10 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application.
- the technical solutions of the embodiments of the present application can be applied to various communication systems, such as universal mobile telecommunications system (universal mobile telecommunications system, UMTS), code division multiple access (code division multiple access, CDMA) system, wireless local area network (wireless local area network) , WLAN), wireless fidelity (wireless fidelity, Wi-Fi) system, wired network, vehicle to everything (vehicle to everything, V2X) communication system, device-to-device (D2D) communication system, car networking Communication systems, 4th generation (4th generation, 4G) mobile communication systems, such as long term evolution (long term evolution, LTE) systems, worldwide interoperability for microwave access (WiMAX) communication systems, 5th generation (5th generation) generation, 5G) mobile communication systems, such as new air interface (new radio, NR) systems, and future communication systems, such as the sixth generation (6th generation, 6G) mobile communication systems, etc.
- universal mobile telecommunications system universal mobile telecommunications system
- CDMA code division multiple access
- the present application presents various aspects, embodiments or features in terms of a system that can include a number of devices, components, modules and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules etc. discussed in connection with the figures. Additionally, combinations of these schemes can also be used.
- a subscript such as W 1 may be a clerical error into a non-subscript form such as W1.
- the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
- the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
- FIG. 1 and FIG. 2 are schematic structural diagrams of a communication system to which the random access method provided by the embodiment of the present application is applicable.
- the communication system includes a first device and a second device.
- the first device may be an access network device (such as a micro base station (micro base station, micro BS) in FIG. 1, an access point, an integrated access and backhaul (IAB) node, or a macro station (macro BS), etc.), or a read-write device
- the second device can be a terminal device.
- the communication system may further include a third device (as shown in (c) in FIG. 1 or as shown in FIG. 2 ).
- the third device may be a stimulus source (helper), and the stimulus source may be a terminal device, or an access network device or a small station.
- the transmission between the second device, the read-write device, or the third device and the access network device belongs to Uu interface transmission, that is, air interface transmission, such as Uu interface private-IoT (P-IoT) transmission, or sidechain Internet of Things transmission on the road private network, and may also be wired transmission.
- Uu interface transmission that is, air interface transmission, such as Uu interface private-IoT (P-IoT) transmission, or sidechain Internet of Things transmission on the road private network, and may also be wired transmission.
- the second device may be deployed in an all-in-one architecture, for details, refer to FIG. 1 .
- the first device can be an access network device, and the second device is located in one or more Within the coverage of a cell (carrier), there may be one or more cells serving the second device.
- the second device may work in accordance with carrier aggregation (carrier aggregation, CA) (or dual connectivity (dual connectivity, DC) or coordinated multi-point transmission, wherein at least one cell provides multiple The radio resources are simultaneously provided to the second device in a numerology.
- the first device can be a read-write device, and the second device can also be located within the coverage provided by the first device or the third device.
- the communication between the two devices can be regarded as the communication between the terminals, and it can also be the communication between the base station or the integrated access and backhaul (IAB) node to the terminal.
- IAB integrated access and backhaul
- the second device may be deployed in a separate architecture, as shown in FIG. 2 , the third device may communicate with the first device (access network device or read-write device) over an air interface, or through wired transmission.
- the third device and the first device have uplink commands and downlink commands
- the third device and the second device only have downlink commands
- an integrated architecture and a split architecture can be distinguished according to whether the second device sends and receives signals to the same device.
- an integrated architecture from the perspective of the second device, the opposite end of the second device for sending and receiving signals is the same device, as shown in (a), (b), and (c) in Figure 1 .
- Separate architecture From the perspective of the second device, the opposite end of the second device to send and receive signals is not the same device. As shown in FIG. 2 , the second device receives a signal from the third device and sends a signal to the first device, and the opposite end of the sending and receiving signal is not the same device.
- the access network device is located on the network side of the above-mentioned communication system and has a wireless transceiver function or a chip or a chip system that can be set on the device, and refers to a wireless access network (radio) that connects terminals to the wireless network.
- An access network (RAN) node or device may be called a base station (base station, BS).
- the access network equipment includes but is not limited to: an access point (access point, AP) in a wireless fidelity (wireless fidelity, Wi-Fi) system, such as a home gateway, a router, a server, a switch, a network bridge, etc., an evolved Node B (evolved Node B, eNB), radio network controller (radio network controller, RNC), node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit, BBU), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP), etc., can also be 5G, such as gNB in the new air interface (new radio, NR) system, or, transmission point (TRP or TP), one or a group of base stations in the 5G system (including multiple An
- the reading and writing equipment can be called tag readers, reading devices, scanners, reading heads, communicators, card readers or readers, etc., and can be handheld or fixed to read (and sometimes write) tags
- the information device can also be a device that communicates with the tag. It can be a terminal, a base station, or a device with read and write functions.
- the above-mentioned terminal device is a terminal that accesses the above-mentioned communication system and has a wireless transceiver function, or a chip or a chip system that can be installed in the terminal.
- the terminal equipment may also be called user equipment (user equipment, UE), user device, access terminal, subscriber unit, subscriber station, mobile station, mobile station (mobile station, MS), remote station, remote terminal, mobile device, A user terminal, terminal, terminal unit, end station, terminal device, wireless communication device, user agent or user device.
- the terminal device in the embodiment of the present application may be an electronic tag, a mobile phone (mobile phone), a wireless data card, a personal digital assistant (personal digital assistant, PDA) computer, a laptop computer (laptop computer), a tablet computer ( Pad), unmanned aerial vehicle, computer with wireless transceiver function, machine type communication (machine type communication, MTC) terminal, virtual reality (virtual reality, VR) terminal equipment, augmented reality (augmented reality, AR) terminal equipment, Internet of Things (internet of things, IoT) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, smart grid Wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home (such as game consoles, smart TVs, smart speakers, smart refrigerators) and fitness equipment, etc.), vehicle-mounted terminals, and RSUs with terminal functions.
- MTC machine type communication
- VR virtual reality
- AR augmented reality
- IoT Internet of Things
- An access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) , a handheld device (handset) with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, and the like.
- SIP session initiation protocol
- WLL wireless local loop
- PDA personal digital assistant
- Handset handheld device with wireless communication function
- computing device or other processing device connected to a wireless modem a wearable device, and the like.
- the electronic tag may be called a smart tag, a tag device, an RFID tag, an RFID transponder, or an RFID data carrier, and the like.
- RFID technology can be divided into three types: active, passive and semi-active.
- Electronic tags can be divided into active tags, semi-passive tags and passive tags. Passive tags can also be called passive IoT devices.
- the terminal device in the embodiment of the present application can be an express terminal in smart logistics (such as a device that can monitor the location of cargo vehicles, a device that can monitor the temperature and humidity of goods, etc.), a wireless terminal in smart agriculture (such as a device that can collect poultry wearable devices related to livestock data, etc.), wireless terminals in smart buildings (such as smart elevators, fire monitoring equipment, and smart meters, etc.), wireless terminals in smart medical care (such as wireless terminals that can monitor the physiological status of people or animals) Wearable devices), wireless terminals in smart transportation (such as smart buses, smart vehicles, shared bicycles, charging pile monitoring equipment, smart traffic lights, and smart monitoring and smart parking equipment, etc.), wireless terminals in smart retail (such as automatic vending Cargo planes, self-checkout machines, and unmanned convenience stores, etc.).
- smart logistics such as a device that can monitor the location of cargo vehicles, a device that can monitor the temperature and humidity of goods, etc.
- a wireless terminal in smart agriculture such as a device that can collect poultry wearable devices
- the terminal device of the present application may be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit built into a vehicle as one or more components or units. Groups, on-board components, on-board chips, or on-board units can implement the methods provided in this application.
- the communication system provided by this application can be applied in fields such as logistics, transportation, identification, anti-counterfeiting, asset management, food, information statistics, transaction, reference application, or security control. For example, it is applied to book management, logistics management, water and electricity charges, access control management, shelf management or industrial production line management, etc. This application does not limit specific application scenarios.
- Fig. 1 and Fig. 2 are only simplified schematic diagrams for easy understanding, and the communication system may also include other devices, such as core network elements, which are not shown in Fig. 1 and Fig. 2 .
- the random access method provided in the embodiment of the present application may also involve communication between an access network device and a core network element.
- Fig. 3 is a schematic structural diagram of a possible RFID system provided by the embodiment of the present application.
- the RFID system includes a tag device (may be referred to as a tag for short), and a read/write device (also referred to as a reader/writer, etc.).
- the read-write device integrates an antenna, and the antenna is used for sending and receiving information.
- the read-write device and the antenna are set separately.
- the tag device After the tag device enters the magnetic field, it receives the radio frequency signal sent by the read-write device, and the tag device sends out the product information (passive tag or passive tag) stored in the chip by virtue of the energy obtained by the induced current. After the product information is taken and decoded, it is sent to the central information system for relevant data processing.
- the product information passive tag or passive tag
- the tag device receives the mask information and flag bits specified by the read-write device. If the storage area information of the tag device matches the received mask information, and the flag bits saved by the tag device are consistent with the received flag bits, it can enter In the inventory process, it initiates random access to the read-write device and completes the corresponding instructions indicated by the read-write device.
- Fig. 4 shows the interaction flow between the tag device and the read-write device.
- the read-write device sends a select command, through which the selected (SL) identifier (or inventory (inventoried) identifier) and a mask (mask) can be indicated to select a group of tag devices.
- the tag device receives the selection command from the read-write device, and judges whether the information stored in the corresponding location of the tag device's own storage area is consistent with the mask information in the selection command. If they are consistent, the tag device considers itself to meet the selection criteria for the read-write device.
- the read-write device sends a query (Query) command, and the query command carries flag information (such as a selection flag or an inventory flag).
- the tag device conforms to the selection criteria of the above-mentioned read-write device.
- the tag device determines whether its own flag bit information is consistent with the flag bit information in the read-write device query command. If they are consistent, the tag device generates a random number between (0, 2 Q-1 ) Number k, and generate a 16-bit random or pseudo-random number (16-bit random or pseudo-random, RN16).
- the RN16 fed back by multiple tag devices may collide, or the read-write device does not receive the RN16 from the tag device.
- the read-write device can pass Send the Query Rep command to adjust the Q value.
- the read-write device does not detect a conflict, that is, only one tag device feeds back RN16 at a certain moment, and the read-write device feeds back a confirmation message to the tag device.
- the tag device After the tag device receives a valid confirmation message from the read-write device, it sends tag information to the read-write device.
- the read-write device receives the tag information from the tag device. If the tag information is valid, it means that the read-write device has completed the inventory of the sticky note, and the read-write device can start to inventory the next tag device. Otherwise, if the tag information is invalid, then The read-write device sends a non-acknowledgement (non-acknowledge, NACK) message to the tag device that feeds back invalid tag information.
- NACK non-acknowledgement
- the label information includes but is not limited to one or more of the following: the protocol control (protocol control, PC) bit of the label device, the product electronic code (electronic product code, EPC) and the 16-bit cyclic redundancy check (cyclic redundancy check). check, CRC-16).
- PC protocol control
- EPC electronic product code
- CRC-16 16-bit cyclic redundancy check
- the confirmation message sent to the tag device is an invalid confirmation message (carrying invalid RN16), in this case
- the tag device does not feed back tag information to the read-write device, and the read-write device cannot detect the tag information for a period of time.
- the read-write device continues to send repeated query commands, and waits for the tag device to feedback RN16.
- a valid confirmation message refers to a confirmation message carrying a valid RN16.
- Effective RN16 that is, the RN16 carried by the tag device in the response message.
- An invalid confirmation message that is, a confirmation message carrying an invalid RN16. The value of invalid RN16 is different from the value of valid RN16.
- T1 After the read-write device sends a downlink message, it waits for the feedback time of the tag device.
- T1 may be the time from when the read-write device sends a command to when the tag device replies with a random number.
- T2 After the tag device sends a message, it waits for the maximum time for the feedback from the read-write device.
- T2 may be the time from when the tag device sends the random number to when it receives a confirmation message from the reader-writer device or a response to the contention resolution message.
- T3 After T1, the time for the read-write device to wait for the feedback from the second device before sending the next command. For example, after the read-write device sends a message, the maximum time to wait for the feedback from the tag device is T1+T3.
- T4 The minimum time interval between two consecutive down commands.
- the storage area of the tag device is divided into four different storage areas, and each storage area consists of one or more storage words.
- the logical storage mapping table is shown in Figure 5, and these storage areas are:
- Reserved storage area used to store passwords required for inactivation and access functions. Among them, storage addresses 00h to 1Fh store the kill passwd (kill passwd), 00h is the least significant bit (least significant bit, LSB), 1Fh is the most significant bit (most significant bit, MSB), and 20h to 3Fh store the access password (access passwd).
- EPC storage area The storage area from address 00h to 0Fh is used to store CRC, the storage area from address 10h to 1Fh is used to store PC bits, and the address 20h and greater than 20h stores information used to identify the attached object of the tag device, such as EPC, optional extension protocol Control (optional extended protocol control, optional XPC).
- EPC optional extension protocol Control
- optional XPC extended protocol control
- tags 00h to 07h store an 8-bit class identification code assigned by the International Organization for Standardization/International Electrotechnical Commission (ISO/IEC) 15693 (the code of EPCglobal is 11100010_2).
- the area above address 07h should contain sufficient identification information, so that the read-write device can uniquely identify the custom commands and (or) optional commands supported by the tag device.
- these identification information will constitute a label device mask designer identifier such as a 12-bit word length and a label model code such as a 12-bit word length.
- the designer ID is stored at 08h to 13h, and the model code is stored at addresses 14h to 1Fh.
- the tag device may store tag and provider-specific data (for example, the serial number of the tag) in an area of the TID area whose address is greater than 1Fh.
- the signaling and data between the read-write device and the tag device are sent through a unified signaling format, and all signaling and data are in one protocol layer.
- mobile networks perform layered design. How to integrate RFID technology with mobile networks has become an urgent problem to be solved.
- the confirmation message and the EPC are sent through a unified signaling format.
- selection commands, query commands, and confirmation messages are air interface signaling
- EPC is application layer data. How to send air interface signaling and application layer data has become an urgent problem to be solved.
- the timing relationship in the process of the existing tag device accessing the reading and writing device is fixed, and it is the timing under the integrated architecture, and the scenario of supplementary coverage is not considered (the scenario shown in (c) in Figure 1) and the scenario of the separated architecture (the scenario shown in FIG. 2 ), the existing timing relationship is not applicable to the scenario of supplementary coverage and the scenario of the separated architecture.
- the interaction between the tag device and the read/write device should generally meet the timing requirements in Table 1 below, and the timing relationship is fixed.
- RTcal is the length of data symbol 0 and data symbol 1
- Tpri 1/BLF
- Tpri is the reflection link pulse repetition interval (backscatter-link pulse-repetition interval)
- BLF is the reflection link frequency (backscatter-link frequency, BLF).
- FIG. 6 is a schematic flow chart of a random access method provided in an embodiment of the present application. This random access method can be applied to the communication between any two nodes shown in Fig. 1 .
- the random access method includes the following steps:
- the first device sends a first inventory command to the second device.
- the second device receives the first inventory command from the first device.
- the first inventory command may be used to instruct one or more second devices to perform random access.
- the first inventory command may include conditions for instructing one or more second devices to perform access, and the second devices meeting the access conditions perform random access.
- the first inventory command may include application layer data.
- the application layer data can be sent to the second device as soon as possible.
- the data of the application layer may include instructions of the application layer, such as read instructions, write instructions, read and write instructions, and read identifiers.
- the data of the application layer may be carried in a radio resource control (radio resource control, RRC) message or a media access control (media access control, MAC) data packet.
- RRC radio resource control
- MAC media access control
- the data of the application layer may be encapsulated in a container (container) of the RRC message, or encapsulated in a MAC data packet sent together with the first inventory command.
- the first inventory command may further include one or more group identification information, and one piece of group identification information is used to identify one or more second devices.
- the first inventory command includes group identification information 1 and group identification information 2, the group identification information 1 is used to identify the second device 1 and the second device 2, and the group identification information 2 is used to identify the second device 3 and the second device 4 .
- the first inventory command may instruct the second device 1, the second device 2, the second device 3, and the second device 4 to access the first device.
- a certain group of second devices may be instructed to perform related operations through the group identification information.
- one or more group identification information corresponds to one or more application layer data.
- the second device corresponding to the group identifier may be instructed to receive corresponding application layer data, and perform corresponding processing or response according to the application layer data.
- the first inventory command includes group identification information 1 and group identification information 2, the group identification information 1 is used to identify the second device 1 and the second device 2, and the group identification information 2 is used to identify the second device 3 and the second device 2.
- Group identification information 1 corresponds to a read command
- group identification information 2 corresponds to a write command.
- the first device can send the read command to the second device 1 and the second device 2 , and send the write command to the second device 3 and the second device 4 .
- the present application does not limit the number of group identification information or the number of second devices identified by the group identification information.
- the group identification information can identify a second device , this application limits the name of the group identification information, and the group identification information may also be called identification information.
- the first inventory command may be, but not limited to, a query (Query) command, or a selection (Select) command, a repeated query command, or a paging passive link (paging passive link) command.
- the first device may be a read-write device or an access network device.
- the random access method provided in the embodiment of the present application may further include: the access network device sending an inventory command to the first device.
- the first device receives an inventory command from the access network device.
- the inventory command may include application layer data, and may also include one or more group identification information.
- the random access method provided in the embodiment of the present application may further include: a core network element sending an inventory command to the first device.
- the first device receives an inventory command from a network element of the core network.
- the inventory command may be triggered by the application layer.
- the application layer For example, an inventory command sent by an application server to a network element of the core network.
- the first inventory command triggered by the application layer of the first device.
- the second device sends a random access request message to the first device.
- the first device receives the random access request message from the second device.
- the random access request message may be used to request access to the first device.
- the second device determines a moment or a time slot for initiating random access, for example, initiating random access to the first device in a time slot ALOHA manner or sending a random number for access.
- the time slot ALOHA method is an anti-collision algorithm.
- the random access request message may include the random number RN16.
- the random number RN16 refers to the above-mentioned relevant description in FIG. 4 , which will not be repeated here.
- the random access request message may include one or more pieces of group identification information and/or random number information.
- the random number information may be a random number RN16.
- the random access request message may also be understood as a response message of the first inventory command, and this application does not limit the name of the random access request message.
- the first device sends a random access success message to the second device.
- the second device receives the random access success message from the first device.
- the random access success message may be used to indicate that the second device has successfully accessed the first device.
- the random access success message includes application layer data
- the first inventory command includes application layer data
- the first inventory command includes application layer data
- the random access success message includes application layer data. That is to say, the application layer data may be sent by the first device to the second device through the first inventory command, or sent to the second device through a random access success message.
- the first inventory command includes application layer data
- the random access success message does not include application layer data, it may mean that there is application layer data to be sent to the second device at S601, and there is no application layer data at S603 To send to the second device.
- the first inventory command does not include application layer data
- the random access success message includes application layer data, which may mean that there is no application layer data to be sent at S601, and there is application layer data to be delivered at S603.
- the first inventory command includes application layer data
- the random access success message includes application layer data. It may mean that at S601 there is application layer data to be sent to the second device, and at S603 there is new application layer data to be delivered.
- the data of the application layer may be carried in an RRC message or a MAC data packet.
- the application layer data and the conflict resolution message may be sent to the second device through the MAC data packet.
- the data of the application layer can be encapsulated in the container (container) of the RRC message, such as the non-access stratum (non-access stratum, NAS) message in the RRC message or encapsulated in the MAC in the packet.
- container such as the non-access stratum (non-access stratum, NAS) message in the RRC message or encapsulated in the MAC in the packet.
- NAS non-access stratum
- the random access success message may be, but not limited to, a conflict resolution message or an acknowledgment message.
- the random access success message may include the random number RN16.
- the RN16 may be the RN16 in the random access request message.
- the first device may send application layer data to the second device after sending the random access success message.
- the random access success message may not include application layer data, and after the contention is resolved, the first device sends the application layer data to the second device.
- the method provided in the embodiment of the present application may further include: the second device sends data to the first device. Accordingly, the first device receives data from the second device.
- the second device may send tag information to the first device.
- tag information For a specific implementation manner of the tag information, reference may be made to the above description in FIG. 4 , which will not be repeated here.
- the step of the second device sending data to the first device may be performed after the first device receives the random access success message.
- the first device sends a first inventory command to the second device, and receives a random access request message from the second device.
- the first inventory command is used to instruct one or more second devices to perform random access
- the random access request message is used to request access to the first device
- the first device sends a random access success message to the second device.
- the first inventory command includes application layer data
- the random access success message includes application layer data. In this way, the first device may send the first inventory command together with the application layer data to the second device, and/or send the random access success message together with the application layer data to the second device.
- FIG. 7 is a schematic flowchart of another random access method provided by the embodiment of the present application.
- the random access method may be applicable to communication between any two nodes shown in FIG. 1 or FIG. 2 .
- it is applied in a communication system including a third device.
- the random access method includes the following steps:
- the first device sends a first inventory command to the third device.
- the third device receives the first inventory command from the first device.
- the first inventory command is used to instruct one or more second devices to perform random access.
- the first inventory command may include application layer data.
- the first inventory command further includes one or more group identification information, and one piece of group identification information is used to identify one or more second devices.
- one or more group identification information corresponds to one or more application layer data.
- data of the application layer is carried in an RRC message or a medium access control MAC data packet.
- the first device may be a read-write device or an access network device.
- the random access method provided in the embodiment of the present application may further include: the access network device sends an inventory command to the first device.
- the first device receives an inventory command from the access network device.
- the inventory command may include application layer data, and may also include one or more group identification information.
- the random access method provided in the embodiment of the present application may further include: a core network element sending an inventory command to the first device.
- the first device receives an inventory command from a network element of the core network.
- the inventory command may be triggered by the application layer.
- an inventory command sent by an application server to a network element of the core network.
- the third device sends a first inventory command to the second device.
- the second device receives the first inventory command from the third device.
- first inventory command received by the third device from the first device may be a command that the third device can interpret
- first inventory command sent by the third device to the second device may be a command that the second device can interpret
- contents and functions of these two commands can be the same or partially the same.
- the third device may send data to the second device, for example, the third device has its own data or message to be sent to the first device, and the data may be sent to the second device in the same step as the first inventory command, It can also be sent separately, which is not limited in this application.
- the second device sends a random access request message to the first device.
- the first device receives the random access request message from the second device.
- the random access request message may be used to request access to the first device.
- the first device sends a random access success message to the third device.
- the third device receives the random access success message from the first device.
- the random access success message is used to indicate that the second device has successfully accessed the first device.
- the random access success message includes application layer data
- the first inventory command includes application layer data
- the data of the application layer may be carried in an RRC message or a MAC data packet.
- the first device may send application layer data to the second device through the third device.
- the random access success message may not include application layer data.
- the first device sends the application layer data to the third device, and the third device sends the application layer data to the second device.
- the third device sends a random access success message to the second device.
- the second device receives the random access success message from the third device.
- the random access success message received by the third device from the first device may be a message that the third device can interpret, and the random access success message sent by the third device to the second device It may be a message that can be interpreted by the second device, and the contents and functions included in the two messages may be the same.
- the method provided in the embodiment of the present application may further include: the second device sends data to the first device. Accordingly, the first device receives data from the second device.
- the second device may send the tag information to the first device.
- the tag information please refer to the above-mentioned illustration in FIG. 4 , which will not be repeated here.
- the step of the second device sending data to the first device may be performed after the first device receives the random access success message.
- the first device sends a first inventory command to the second device through the third device, receives a random access request message from the second device, and sends a random access command to the second device through the third device.
- the first inventory command is used to instruct one or more second devices to perform random access
- the random access request message is used to request access to the first device
- the first inventory command includes application layer data
- random access Success messages include application layer data.
- the first device may issue the first inventory command together with the application layer data, and/or issue the random access success message together with the application layer data.
- possible transmission time points and procedures are defined for the distribution of application layer data, which can realize the integration of RFID technology and mobile network.
- sending the data of the application layer when sending the first inventory command does not need to wait for the contention to be resolved before sending the data of the application layer, which can save the inventory delay and increase the inventory rate.
- timing implementation manners may be used in combination with the above methods shown in FIG. 6 and FIG. 7 , or the following timing implementation manners may be used alone.
- the scenarios shown in (a) in FIG. 1 , (b) in FIG. 1 , and (c) in FIG. 1 can be referred to as A scenario where the communication system does not include the third device, for example, the communication system includes the first device and the second device and does not include the third device.
- the scenario shown in Fig. 2 is called that the communication system includes the first device, the second device, and the second device.
- a three-device scenario hereinafter referred to as a scenario including a third device in a communication system).
- the second device needs to receive a message from the first device through the third device, and the second device needs to send a message to the first device through the third device A device sends a message.
- the second device needs to receive a message from the first device through the third device, and the second device directly sends a response message to the first device.
- the transmission process between the first device and the third device is increased, which may increase the connection between the third device and the third device. The time required to transfer data between the first device.
- the minimum time interval between two downlink commands sent by the device is the fourth time period T4, and the communication system includes the third device and the communication system does not include the third device.
- the value of the fourth time period T4 may be the same.
- the fourth time period T4 may also be understood as a waiting time between two downlink signalings, and this time may be a time for the second device to process the signaling.
- the minimum time interval for the first device or the third device to send the selection command and the query command may be the fourth time period T4.
- the first device sends the query command after a fourth time period T4.
- FIG. 8 is a schematic diagram of timing in a scenario where a third device is included in a communication system provided by an embodiment of the present application, where (a) in FIG. 8 corresponds to the scenario shown in (c) in FIG. 1 , and (c) in FIG. 8 b) corresponds to the scene shown in Figure 2.
- the first device sends a selection command to the third device, and the third device receives the selection command and sends a selection command to the third device.
- the second device sends the selection command.
- the first device sends a query command to the third device, and the third device receives the query command and sends the query command to the second device.
- the time interval for sending two commands by the first device is not affected by the transmission process between the first device and the third device, and may be a fourth time period T4.
- the time interval between sending two commands by the third device is the same as the time interval between sending two commands from the first device, and is not affected by the transmission process between the first device and the third device.
- the first time period may be a time for waiting for feedback from the second device after sending the downlink message.
- the first time period may be a processing delay of the second device for the received downlink message. Or it may also include the downlink message transmission time, or it may also include the preparation time for the next signaling, or, the first time period may include the processing delay of the second device for the received command, and the time delay between the first device and the third device. The time required to transfer data between.
- the first time period may be determined according to a coding method and/or a coverage level.
- the first period of time may be determined according to the encoding method and/or coverage level, and the added time information.
- the first time period is determined according to the coding method, the coverage level, and the added time information
- the first time period is determined according to the coding method and the added time information
- the first time period is determined according to the coverage level and the added time information.
- an overlay may include a basic overlay (eg, (a) in FIG. 1 , or (b) in FIG. 1 ), or a supplementary overlay ((c) in FIG. 1 , or FIG. 2 ). If the second device is in the coverage scenario shown in (a) in FIG. 1 or (b) in FIG. 1 , it may be considered that the coverage level is relatively high. If the second device is in (a) in FIG. 1 or in the coverage scenario shown in FIG. 2 , it may be considered that the coverage level is low.
- a basic overlay eg, (a) in FIG. 1 , or (b) in FIG. 1
- a supplementary overlay ((c) in FIG. 1 , or FIG. 2 ).
- the value of the corresponding first time period is greater.
- timing constraints under different coverages can be determined, and different architectures and scenarios can be better adapted.
- adding time information may be used to indicate the required time for data transmission between the third device and the first device.
- the added time information may include the required time for data transmission between the third device and the first device, and may also include the time for the third device to process the data.
- Tb may be used to represent the time indicated by the added time information.
- the added time information Tb may be determined by the third device or the first device according to the interface or connection between the third device and the first device.
- the first time period may be preset.
- the first time period is the time stipulated in the agreement.
- the first time period may be a time determined by the first device itself.
- T1 represents the time that the first device waits for a feedback from the second device after sending a message in a scenario where the communication system does not include a third device.
- the communication system includes the third device, for the first device, use T1' to represent the first time period; for the third device, use T1" to represent the first time period.
- T1' represents the time that the first device waits for feedback from the second device after sending a message in a scenario where the communication system includes a third device.
- T1" indicates that in a scenario where the communication system includes a third device, after the third device sends a message, it waits for a feedback from the second device.
- the time required for data transmission between the third device and the first device is taken into account when determining the time to wait for the feedback from the second device (the first time period), which can better adapt to different architectures and different scenarios.
- the third time period is the time for waiting for feedback from the second device before sending the next command after the first time period.
- the third time period T3 may be preset.
- the third time period may be specified by the protocol or determined by the first device itself.
- the maximum time for waiting for a feedback from the first device is T1+T3.
- the time may be stipulated by the protocol or notified by other devices.
- the communication system includes a third device
- the random access method provided by the embodiment of the present application may further include: after the first device sends the first inventory command, if no random access request message is received within the first time period , continue to wait for the third time period, or stop waiting and send the next command.
- the first device sends a repeated query command, waits for T1 time, does not receive a response message, and continues to wait for T3 time. If no response message is received after T3 time, the first device may consider that there is no second device accessing at this time, and may perform subsequent inventory.
- the first device sends a repeated query command, waits for T1 time, and does not receive a response message, and may stop waiting, and perform inventory on another second device, or send the next command.
- the present application does not limit whether it is necessary to increase the time required for data transmission between the first device and the third device when determining the time to wait for the feedback from the second device (the second time period) in the scenario including the third device.
- the required time can be determined, for example, according to the agreement.
- the second time period is the time for the second device to wait for a response message after sending the message. It can also be understood as the time to wait for a response after sending an uplink command.
- the duration of waiting for the response message is the second time period.
- the second device may select an access time slot, and send a random access request message in the selected time slot, where the random access request message may include the random number RN16. After the second device sends the random access request message, it may start a timer for waiting for feedback, and when the second time period exceeds the second time period, it determines that the random access has failed.
- the second time period may be determined according to parameter information or time information, or the second time period may be determined according to parameter information and added time information, or the second time period may be preset .
- the first inventory command may include parameter information and/or time information. That is, parameter information and/or time information may be received by the second device from the first device or the third device.
- the second period of time may be protocol specific.
- the first device or the third device sends indication information to the second device, and the indication information may be used to instruct the second device to determine the specific time used from the protocol according to the indication information.
- the first inventory command in S601, S701, and S702 may include parameter information and/or time information.
- the parameter information may include data transmission rate, number of repetitions, encoding method, modulation method (such as on-off keying (OOK), amplitude shift keying (ASK), binary phase shift keying (binary phase shift keying, BPSK) , quadrature phase shift keying (QPSK)), frame structure type (eg long or segment) and/or coverage level.
- modulation method such as on-off keying (OOK), amplitude shift keying (ASK), binary phase shift keying (binary phase shift keying, BPSK) , quadrature phase shift keying (QPSK)
- frame structure type eg long or segment
- coverage level e.g long or segment
- the number of repetitions may be the number of repetitions for sending a certain message by the second device.
- the second device may send the random access request message multiple times, for example, N times, then the number of repetitions is N, and N is an integer greater than or equal to 0.
- the second time period is equal to the product of the parameter and the coefficient in the parameter information.
- the second time period data transmission rate ⁇ repetition times ⁇ coverage level ⁇ coefficient.
- the parameters required for determining the second time period may be one or more of the above parameters. Specific coefficients can also be absent.
- the coefficients may include but not limited to one or more of the following: Tari and Tpri.
- the parameter information includes data transmission rate, repetition times, and coverage level
- the coefficients include Tari and Tpri
- the second time period transmission rate ⁇ repetition times ⁇ coverage level ⁇ Tari ⁇ Tpri.
- the second time period is a value or a value range specified in the protocol.
- the second device may determine the value or value range of the second time period specified in the used protocol according to the configuration information sent by the first device or the third device.
- the configuration information may be at least one item of the above parameter information
- the protocol may be a table of values or value ranges. For example, if the second device is instructed to use rate 1 and coverage level 2, the value or range of values corresponding to the second time period can be found through the protocol lookup table.
- the second time period at least one of (data transmission rate ⁇ number of repetitions ⁇ coverage level) ⁇ coefficient+increase time information indication time.
- parameter information includes data transmission rate, number of repetitions, and coverage level, and coefficients include Tari and Tpri
- the second time period transmission rate*times of repetition*coverage level*Tari*Tpri+time indicated by the added time information.
- the second time period which can be determined according to the parameter information and the added time information, not only considers the coverage level, the number of repetitions and/or the transmission rate, but also takes into account the data transmission time between the third device and the first device.
- the time required can better adapt to the split architecture.
- adding the time indicated by the time information may be an additional time required for calculating the second time period that needs to be added.
- the second time period time determined according to the parameter information+time information added.
- the adding time information may be determined according to the second parameter configuration information, and the second parameter configuration information may be at least one kind of parameter information, such as rate, coverage, etc. as described above. It may also include an indication of the level of time used, etc.
- the second parameter configuration information may be sent by the third device to the second device, and the calculation method refers to the calculation method of the above-mentioned second time period.
- adding time information may be specified by the protocol.
- the second device may determine the final usage time in the protocol according to the configuration information sent by the third device.
- T2 represents the time for the second device to wait for a response message after sending a message in a scenario where the communication system does not include a third device.
- T2' represents the second time period.
- T2' represents the time that the second device waits for a response message after sending a message in a scenario where the communication system includes a third device.
- T2' the time for transmitting a random access request message and the time for transmitting a random access success message between the first device and the third device are added.
- the second device may determine whether to increase Tb according to the increase time indication information.
- the increase time indication information may be used to indicate whether to increase the time required for data transmission between the third device and the first device when determining the second time period.
- the time for transmitting the random access success message between the first device and the third device is increased in T1'.
- the second device may determine whether to increase Tb according to the increase time indication information.
- Tb in (b) of FIG. 8 is only for illustration, and the uplink and downlink transmission times of the same link may be different.
- the value of Tb corresponding to the uplink of the same link may be the same as or different from the value of Tb corresponding to the downlink, which is not limited in the present application.
- time information may be used to indicate a period of time.
- the first device may send the time (time information) of the second time period used by the second device in this inventory, and the second device may directly use the time indicated by the time information as the second time period.
- the time information includes the time required for data transmission between the third device and the first device, and may also include the time for the third device to process data.
- the time information does not include the time required for data transmission between the third device and the first device, but may also include the time for the third device to process data.
- the second time period may be preset.
- the second time period may be specified by an agreement.
- the protocol stipulates a second time period corresponding to different coverage levels or data transmission rates, and the second device uses the value of the second time period corresponding to the coverage level or data transmission rate.
- the first device indicates the coverage level or data transmission rate to the second device in an explicit or implicit manner.
- the first device displays the indicated coverage level through the first inventory command, for example, the indicated coverage level is 1, and the second device uses the time corresponding to the coverage level 1 in the protocol as the value of the second time period.
- the second device judges the coverage level used according to the received message or data, for example, the number of repetitions or the coverage level used is judged by the received message, and the corresponding coverage level information is used in the calculation.
- the second device determines the second time period explicitly or implicitly according to information received from the first device or the third device.
- the random access method provided in the embodiment of the present application may further include: the third device sends time adding information and/or time adding indication information to the second device.
- the second device receives the added time information and/or added time indication information from the third device.
- the increase time indication information may be used to indicate whether to increase the time required for data transmission between the third device and the first device when determining the second time period.
- the added time indication information may be used to indicate whether the second device uses the added time information to determine the second time period.
- the second device determines the second time period according to the parameter information and the added time information. If the added time indication information is "0" indicating that the added time information is not used to determine the second time period, the second device determines the second time period according to the parameter information.
- the second time period may be a time range.
- the second device may not decode the data from the first device before the lower bound value of the second time period, and after reaching the lower bound value of the second time period , to start decoding.
- the upper bound value of the second time period is the maximum time for the second device to wait for the first device to send data, or the maximum time for trying to decode.
- the random access method provided in the embodiment of the present application may further include: when a random access request message is sent and no response message is received after waiting for a second period of time, the second The device determines that this random access fails.
- the second device may wait to enter the next inventory, or perform subsequent operations according to the instruction of the first device.
- the timing relationship between any signaling or messages involved can refer to the above description, and the signaling or messages can be It is not the signaling or messages mentioned in the above embodiments.
- the second time period is a time period for the second device to wait for a response message after sending the message. If it times out, it can be considered that there is a problem with the connection or decoding, and it can enter a state that is not connected to the network test.
- the above method in the embodiment of the present application fully considers various application scenarios, and provides calculation methods for each time period (time slot) under the integrated architecture and the separated architecture, which are used for the first device, the second device, and the third device Determine the waiting time, which can adapt to the time requirements of different architectures and different scenarios.
- the random access method provided by the embodiment of the present application is described in detail above with reference to FIG. 1 to FIG. 7 .
- the random access apparatus provided by the embodiment of the present application will be described in detail below with reference to FIG. 9-FIG. 10 .
- FIG. 9 is a schematic structural diagram of a random access device that can be used to implement the embodiment of the present application.
- the random access apparatus 900 may be the first device, the second device, or the third device, and may also be a chip or other components with corresponding functions applied in the first device, the second device, or the third device.
- a random access apparatus 900 may include a processor 901 .
- the random access apparatus 900 may further include one or more of a memory 902 and a transceiver 903 .
- the processor 901 may be coupled with one or more of the memory 902 and the transceiver 903, such as through a communication bus, or the processor 901 may be used alone.
- the processor 901 is the control center of the random access device 900, and may be one processor, or may be a general term for multiple processing elements.
- the processor 901 is one or more central processing units (central processing unit, CPU), may also be a specific integrated circuit (application specific integrated circuit, ASIC), or is configured to implement one or more An integrated circuit, for example: one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (field programmable gate array, FPGA).
- CPU central processing unit
- ASIC application specific integrated circuit
- An integrated circuit for example: one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate arrays (field programmable gate array, FPGA).
- the processor 901 may execute various functions of the random access apparatus 900 by running or executing software programs stored in the memory 902 and calling data stored in the memory 902 .
- the processor 901 may include one or more CPUs, for example, CPU0 and CPU1 shown in FIG. 9 .
- the random access apparatus 900 may also include multiple processors, for example, the processor 901 and the processor 904 shown in FIG. 9 .
- processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
- a processor herein may refer to one or more communication devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
- the memory 902 may be a read-only memory (read-only memory, ROM) or other types of static storage communication devices that can store static information and instructions, or a random access memory (random access memory, RAM) that can store information and other types of dynamic storage communication devices for instructions, it can also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or Other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disc storage media or other magnetic storage communication devices, or can be used to carry or store desired information in the form of instructions or data structures program code and any other medium that can be accessed by a computer, but not limited to.
- EEPROM electrically erasable programmable read-only memory
- CD-ROM compact disc read-only memory
- Other optical disc storage optical disc storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disc storage
- the memory 902 can be integrated with the processor 901, or can exist independently, and is coupled with the processor 901 through the input/output port (not shown in FIG. 9 ) of the random access device 900, which is not specifically described in this embodiment of the present application. limited.
- the input port can be used to implement the receiving function performed by the first device, the second device, or the third device in any of the above method embodiments
- the output port can be used to realize the receiving function performed by the first device in any of the above method embodiments , the second device, or the sending function performed by the third device.
- the memory 902 may be used to store a software program for executing the solution of the present application, and the execution is controlled by the processor 901 .
- the processor 901 may be used to control the execution of the solution of the present application.
- the transceiver 903 is used for communication with other random access devices.
- the transceiver 903 may be used to communicate with the second device and/or the third device.
- the transceiver 903 may be used to communicate with the first device or the third device.
- the transceiver 903 may be used to communicate with the first device or the second device.
- the transceiver 903 may include a receiver and a transmitter (not separately shown in FIG. 9 ). Wherein, the receiver is used to realize the receiving function, and the transmitter is used to realize the sending function.
- the transceiver 903 may be integrated with the processor 901, or may exist independently, and be coupled to the processor 901 through an input/output port (not shown in FIG. 9 ) of the random access device 900, which is not discussed in this embodiment of the present application. Specific limits.
- the structure of the random access device 900 shown in FIG. 9 does not constitute a limitation to the random access device, and an actual random access device may include more or fewer components than shown in the figure, or Combining certain parts, or different arrangements of parts.
- the above-mentioned actions of the first device in FIGS. 2-8 can be executed by the processor 901 in the random access apparatus 900 shown in FIG. 9 calling the application code stored in the memory 902 to instruct the first device to execute.
- the above-mentioned actions of the second device in FIGS. 2-8 can be executed by the processor 901 in the random access device 900 shown in FIG. 9 calling the application program code stored in the memory 902 to instruct the second device to execute. No restrictions are imposed.
- the random access device 900 can implement any one or more possible design methods involved in the first device in the above method embodiments; when the random access device is the second device , the random access apparatus 900 may implement any one or more possible design manners involved in the second device in the foregoing method embodiments.
- FIG. 10 is a schematic structural diagram of another random access apparatus provided by an embodiment of the present application. For ease of description, FIG. 10 only shows main components of the random access device.
- the random access device 1000 includes a sending module 1001 and a receiving module 1002 .
- the random access apparatus 1000 may be the first device, the second device, or the third device in the foregoing method embodiments.
- the sending module 1001 which may also be referred to as a sending unit, is configured to implement the sending function performed by the first device, the second device, or the third device in any of the above method embodiments.
- the receiving module 1002, which may also be referred to as a receiving unit, is configured to implement the receiving function performed by the first device, the second device, or the third device in any of the above method embodiments.
- the sending module 1001 and the receiving module 1002 can be set separately, or can be integrated into one module, that is, a transceiver module.
- the transceiver module may be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.
- the random access device 1000 may further include a processing module 1003 and a storage module (not shown in FIG. 10 ), where programs or instructions are stored in the storage module.
- the processing module 1003 executes the program or instruction
- the random access device 1000 can execute the method described in any one of the above method embodiments.
- the processing module 1003 may be configured to implement the processing function performed by the first device, the second device, or the third device in any of the above method embodiments.
- the processing module 1003 may be a processor.
- the random access apparatus 1000 is presented in the form of dividing various functional modules in an integrated manner.
- a “module” here may refer to a specific ASIC, a circuit, a processor and a memory executing one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
- the random access device 1000 may take the form of the random access device 900 shown in FIG. 9 .
- the processor 901 in the random access apparatus 900 shown in FIG. 9 may invoke the computer-executed instructions stored in the memory 902, so that the random access method in the foregoing method embodiments is executed.
- the functions/implementation process of the processing module 1003 and the storage module in FIG. 10 may be implemented by the transceiver 903 in the random access apparatus 900 shown in FIG. 9 .
- the function/implementation process of the processing module 1003 in FIG. 10 can be implemented by the processor 901 in the random access device 900 shown in FIG. 9 calling the computer-executed instructions stored in the memory 902,
- the random access device 1000 provided in this embodiment can execute the above random access method, the technical effect it can obtain can refer to the above method embodiment, and details are not repeated here.
- the random access apparatus 1000 shown in FIG. 10 can be applied to the system shown in FIGS. 1-3 to perform the random access method described in any method embodiment above The functionality of the first device.
- the sending module 1001 is configured to send the first inventory command to the second device or the third device.
- the first inventory command is used to instruct one or more second devices to perform random access.
- the receiving module 1002 is configured to receive a random access request message from the second device. Wherein, the random access request message is used to request access to the random access device 1000 .
- the sending module 1001 is further configured to send a random access success message to the second device or the third device.
- the random access success message is used to indicate that the second device has successfully accessed the random access apparatus 1000 .
- the random access success message includes application layer data, and/or the first inventory command includes application layer data.
- the first inventory command further includes one or more group identification information, and one piece of group identification information is used to identify one or more second devices.
- one or more group identification information corresponds to one or more application layer data.
- data of the application layer is carried in a radio resource control RRC message or a medium access control MAC data packet.
- the first inventory command includes parameter information and/or time information, where the parameter information includes data transmission rate, repetition times, and/or coverage level, and the time information is used to indicate a period of time.
- the receiving module 1002 is further configured to continue to wait for the third time period, Or stop waiting, the sending module 1001 is also used to send the next command.
- the first time period is determined according to the encoding method and/or the coverage level, or the first time period is preset.
- the third time period is preset.
- the receiving module 1002 and the sending module 1001 may be set separately, or may be integrated into one module, that is, a transceiver module (not shown in FIG. 10 ). This application does not specifically limit the specific implementation manners of the receiving module 1002 and the sending module 1001 .
- the random access device 1000 may further include a processing module 1003 and a storage module (not shown in FIG. 10 ), where programs or instructions are stored in the storage module.
- the processing module 1003 executes the program or instruction, the random access apparatus 1000 can perform the function of the first device in the random access method described in any method embodiment above.
- the random access apparatus 1000 may be a first device, such as an access network device, or a read-write device, etc., or may be a chip (system) or other components or components that can be set in the first device. There is no limit to this.
- the random access apparatus 1000 shown in FIG. 10 can be applied to the system shown in FIGS. 1-3 to perform the random access method described in any method embodiment above The functionality of the second device.
- the receiving module 1002 is configured to receive a first inventory command from the first device or the third device. Wherein, the first inventory command is used to instruct one or more random access apparatuses 1000 to perform random access.
- a sending module 1001 configured to send a random access request message to the first device. Wherein, the random access request message is used to request access to the first device.
- the receiving module 1002 is further configured to receive a random access success message from the first device or the third device.
- the random access success message is used to indicate that the random access apparatus 1000 has successfully accessed the first device.
- the random access success message includes application layer data, and/or the first inventory command includes application layer data.
- the first inventory command further includes one or more group identification information, and one piece of group identification information is used to identify one or more random access apparatuses 1000 .
- one or more group identification information corresponds to one or more application layer data.
- data of the application layer is carried in a radio resource control RRC message or a medium access control MAC data packet.
- the first inventory command includes parameter information and/or time information, where the parameter information includes data transmission rate, repetition times, and/or coverage level, and the time information is used to indicate a period of time.
- the random access apparatus 1000 may further include: a processing module 1003 .
- the processing module 1003 when the random access request message is sent and no response message is received after waiting for a second period of time, the processing module 1003 is configured to determine that the current random access fails.
- the second time period is the time when the random access apparatus 1000 waits for a response message after sending a message, and the second time period is determined according to parameter information or time information, or the second time period is preset.
- the receiving module 1002 is configured to receive the added time information and/or added time indication information from the third device.
- the added time information is used to indicate the time required for data transmission between the third device and the first device
- the added time indication information is used to indicate whether to increase the time between the third device and the first device when determining the second time period.
- the second time period is the time for the random access device 1000 to wait for a response message after sending the message.
- the receiving module 1002 and the sending module 1001 can be set separately, or can be integrated into one module, that is, a transceiver module. This application does not specifically limit the specific implementation manners of the receiving module 1002 and the sending module 1001 .
- the random access device 1000 may further include a storage module, where programs or instructions are stored in the storage module.
- the processing module 1003 executes the program or the instruction, the random access apparatus 1000 can perform the function of the second device in the random access method described in any method embodiment above.
- the random access apparatus 1000 may be a second device, such as a terminal device, or may be a chip (system) or other components or components that may be configured in the second device, which is not limited in this application.
- An embodiment of the present application provides a communication system.
- the communication system includes: a first device and a second device.
- the first device is used to perform the actions of the first device in the above method embodiments
- the second device is used to perform the actions of the second device in the above method embodiments.
- the communication system may further include: a third device.
- the third device is used to execute the actions of the third device in the above method embodiment, and the specific execution method and process may refer to the above method embodiment, and will not be repeated here.
- An embodiment of the present application provides a chip system, and the chip system includes a logic circuit and an input/output port.
- the logic circuit can be used to implement the processing function involved in the random access method provided by the embodiment of the present application
- the input/output port can be used for the transceiving function involved in the random access method provided in the embodiment of the present application.
- the input port can be used to realize the receiving function involved in the random access method provided by the embodiment of the present application
- the output port can be used to realize the sending function involved in the random access method provided in the embodiment of the present application.
- the processor in the random access device 900 may be used to perform, for example but not limited to, baseband related processing, and the transceiver in the random access device 900 may be used to perform, for example but not limited to, radio frequency transceiving.
- the above-mentioned devices may be respectively arranged on independent chips, or at least partly or all of them may be arranged on the same chip.
- processors can be further divided into analog baseband processors and digital baseband processors.
- the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be set on an independent chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip.
- a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) integrated on the same chip.
- application processors such as but not limited to graphics processors, multimedia processors, etc.
- Such a chip can be called a system chip (system on chip). Whether each device is independently arranged on different chips or integrated and arranged on one or more chips often depends on the specific needs of product design.
- the embodiment of the present invention does not limit the specific implementation forms of the foregoing devices.
- the chip system further includes a memory, where the memory is used to store program instructions and data for implementing functions involved in the random access method provided by the embodiments of the present application.
- the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
- An embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores computer programs or instructions, and when the computer programs or instructions are run on a computer, the random access method provided in the embodiments of the present application is executed .
- An embodiment of the present application provides a computer program product, where the computer program product includes: a computer program or an instruction, and when the computer program or instruction is run on a computer, the random access method provided in the embodiment of the present application is executed.
- the processor in the embodiment of the present application may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processor, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
- the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
- the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
- Volatile memory can be random access memory (RAM), which acts as external cache memory.
- RAM random access memory
- static random access memory static random access memory
- DRAM dynamic random access memory
- DRAM synchronous dynamic random access memory Access memory
- SDRAM synchronous dynamic random access memory
- double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
- enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
- serial link DRAM SLDRAM
- direct memory bus random access memory direct rambus RAM, DR RAM
- the above-mentioned embodiments may be implemented in whole or in part by software, hardware (such as circuits), firmware, or other arbitrary combinations.
- the above-described embodiments may be implemented in whole or in part in the form of computer program products.
- the computer program product comprises one or more computer instructions or computer programs. When the computer instruction or computer program is loaded or executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
- the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as infrared, wireless, microwave, etc.).
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more sets of available media.
- the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media.
- the semiconductor medium may be a solid state drive.
- At least one means one or more, and “multiple” means two or more.
- At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items.
- at least one item (piece) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or multiple .
- sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application.
- the implementation process constitutes any limitation.
- the disclosed systems, devices and methods may be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
- the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
- the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
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Abstract
本申请提供一种随机接入方法及装置,能够解决无线电射频识别技术与移动网络融合使用的问题。该方法包括:第一设备向第二设备、或第三设备发送第一盘存命令,接收来自第二设备的随机接入请求消息,向第二设备、或第三设备发送随机接入成功消息。其中,第一盘存命令用于指示一个或多个第二设备进行随机接入,随机接入请求消息用于请求接入第一设备,随机接入成功消息用于指示第二设备已成功接入第一设备,随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
Description
本申请要求于2021年12月24日提交国家知识产权局、申请号为202111605069.3、申请名称为“随机接入方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信领域,尤其涉及一种随机接入方法及装置。
随着无线通信的快速发展,为满足和丰富人们的日益增长的需求,第五代(5th generation,5G)移动通信系统应运而生。在5G移动通信系统中,物联网(internet of things,IoT)的需求增长迅猛。其中机器到机器(machine to machine,M2M)是IoT发展的重要方向,机器与机器之间可以通过无线网络互相传递信息和数据。为了降低设备功耗,现有物联网技术提出窄带物联网(narrow band,NB-IoT)、低能力(reduced capability,RedCap)等。但功耗依然是毫瓦量级以上的,无法进一步节省功耗。
无源物联网(passive IoT)技术可以实现微瓦级功耗和超低成本,成为蜂窝技术未来演进技术的一个重要分支。示例性地,无线电射频识别(radio frequency identification,RFID)技术中,物联网终端设备通过采集网络侧发射过来的无线电波,捕捉和收集能量并发送自身存储的信息。但是如何将RFID技术与移动网络融合使用成为亟待解决的问题。
发明内容
本申请实施例提供一种随机接入方法及装置,可以实现RFID技术与移动网络融合使用。
为达到上述目的,本申请采用如下技术方案:
第一方面,提供一种随机接入方法。该随机接入方法包括:第一设备向第二设备、或第三设备发送第一盘存命令,第一设备接收来自第二设备的随机接入请求消息,第一设备向第二设备、或第三设备发送随机接入成功消息。其中,第一盘存命令用于指示一个或多个第二设备进行随机接入,随机接入请求消息用于请求接入第一设备。随机接入成功消息用于指示第二设备已成功接入第一设备。随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
基于第一方面所示的随机接入方法,第一设备向第二设备发送第一盘存命令,接收来自第二设备的随机接入请求消息。该第一盘存命令用于指示一个或多个第二设备进行随机接入,随机接入请求消息用于请求接入第一设备,第一设备向第二设备发送随机接入成功消息。其中,第一盘存命令包括应用层的数据,和/或随机接入成功消息包括应用层的数据。如此,第一设备可以将第一盘存命令和应用层的数据一起发给第二设备,和/或将随机接入成功消息和应用层的数据一起发给第二设备。在分层设计的 协议架构中,为应用层数据的下发定义了可能的传输时间点以及流程,可以实现RFID技术与移动网络融合使用。另外,在发送第一盘存命令时发送应用层的数据,不需要等待竞争解决后再下发应用层的数据,可以节省盘存时延,提高盘存速率。
例如,应用层的数据可以包括应用层的指令,如读指令、写指令、读写指令,读标识等。
在一种可能的设计方式中,第一盘存命令还可以包括一个或多个组标识信息,一个组标识信息用于标识一个或多个第二设备。
可选地,可以通过组标识信息指示某组第二设备执行相关的操作。
在一种可能的设计方式中,一个或多个组标识信息与一个或多个应用层数据对应。
在一种可能的设计方式中,应用层的数据可以承载在无线资源控制(radio resource control,RRC)消息、或媒体接入控制(media access control,MAC)数据包中。
例如,应用层的数据可以封装在RRC消息的容器(container)中、或者封装在与第一盘存命令一起下发的MAC数据包中。
在一种可能的设计方式中,第一盘存命令可以包括参数信息、和/或时间信息。
可选地,参数信息可以包括数据传输速率、重复次数、和/或覆盖等级,时间信息用于指示一段时间。
也就是说,参数信息、和/或时间信息可以是第二设备从第一设备或第三设备接收的。
在一种可能的设计方式中,第一方面提供的随机接入方法,还可以包括:在发送第一盘存命令后,且在第一时间段内未接收到随机接入请求消息的情况下,第一设备继续等待第三时间段,或者停止等待并发送下一命令。
可选地,第一时间段是第一设备根据编码方式、和/或覆盖等级确定的,或者第一时间段是预设置的。第三时间段是预设置的。
第二方面,提供一种随机接入方法。该方法包括:第二设备接收来自第一设备、或第三设备的第一盘存命令,第二设备向第一设备发送随机接入请求消息,第二设备接收来自第一设备、或第三设备的随机接入成功消息。其中,第一盘存命令用于指示一个或多个第二设备进行随机接入。随机接入请求消息用于请求接入第一设备。随机接入成功消息用于指示第二设备已成功接入第一设备。随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
在一种可能的设计方式中,第一盘存命令还可以包括一个或多个组标识信息,一个组标识信息用于标识一个或多个第二设备。
在一种可能的设计方式中,一个或多个组标识信息与一个或多个应用层数据对应。
在一种可能的设计方式中,应用层的数据可以承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
在一种可能的设计方式中,第一盘存命令可以包括参数信息、和/或时间信息,参数信息包括数据传输速率、重复次数、和/或覆盖等级,时间信息用于指示一段时间。
在一种可能的设计方式中,第二方面提供的随机接入方法,还可以包括:在发送随机接入请求消息、且等待第二时间段后未收到响应消息的情况下,第二设备确定本次随机接入失败。其中,第二时间段为第二设备发送消息后等待响应消息的时间,第 二时间段是根据参数信息、或时间信息确定的,或者第二时间段是预设置的。
在一种可能的设计方式中,第二方面提供的随机接入方法,还可以包括:第二设备接收来自第三设备的增加时间信息、和/或增加时间指示信息。其中,增加时间信息可用于指示第三设备与第一设备之间传输数据的所需要的时间,增加时间指示信息可用于指示在确定第二时间段时是否增加第三设备与第一设备之间传输数据的所需要的时间,第二时间段为第二设备发送消息后等待响应消息的时间。
此外,第二方面所述的随机接入方法的技术效果可以参考第一方面所述的随机接入方法的技术效果,此处不再赘述。
第三方面,提供一种随机接入装置。该随机接入装置包括:发送模块和接收模块。
发送模块,用于向第二设备、或第三设备发送第一盘存命令。其中,第一盘存命令用于指示一个或多个第二设备进行随机接入。
接收模块,用于接收来自第二设备的随机接入请求消息。其中,随机接入请求消息用于请求接入随机接入装置。
发送模块,还用于向第二设备、或第三设备发送随机接入成功消息。其中,随机接入成功消息用于指示第二设备已成功接入随机接入装置。随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
在一种可能的设计方式中,第一盘存命令还包括一个或多个组标识信息,一个组标识信息用于标识一个或多个第二设备。
在一种可能的设计方式中,一个或多个组标识信息与一个或多个应用层数据对应。
在一种可能的设计方式中,应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
在一种可能的设计方式中,第一盘存命令包括参数信息、和/或时间信息,参数信息包括数据传输速率、重复次数、和/或覆盖等级,时间信息用于指示一段时间。
在一种可能的设计方式中,在发送第一盘存命令后,且在第一时间段内未接收到随机接入请求消息的情况下,接收模块,还用于继续等待第三时间段,或者停止等待,发送模块,还用于发送下一命令。其中,第一时间段是根据编码方式、和/或覆盖等级确定的,或者第一时间段是预设置的。第三时间段是预设置的。
需要说明的是,接收模块和发送模块可以分开设置,也可以集成在一个模块中,即收发模块。本申请对于接收模块和发送模块的具体实现方式,不做具体限定。
可选地,第三方面所述的随机接入装置还可以包括处理模块和存储模块,该存储模块存储有程序或指令。当处理模块执行该程序或指令时,使得第三方面所述的随机接入装置可以执行第一方面所述的方法。
需要说明的是,第三方面所述的随机接入装置可以是第一设备,例如接入网设备、或读写设备等,也可以是可设置于第一设备的芯片(系统)或其他部件或组件,本申请对此不做限定。
此外,第三方面所述的随机接入装置的技术效果可以参考第一方面中任一种可能的实现方式所述的随机接入方法的技术效果,此处不再赘述。
第四方面,提供一种随机接入装置。该随机接入装置包括:发送模块和接收模块。
接收模块,用于接收来自第一设备、或第三设备的第一盘存命令。其中,第一盘 存命令用于指示一个或多个随机接入装置进行随机接入。
发送模块,用于向第一设备发送随机接入请求消息。其中,随机接入请求消息用于请求接入第一设备。
接收模块,还用于接收来自第一设备、或第三设备的随机接入成功消息。其中,随机接入成功消息用于指示随机接入装置已成功接入第一设备。随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
在一种可能的设计方式中,第一盘存命令还包括一个或多个组标识信息,一个组标识信息用于标识一个或多个随机接入装置。
在一种可能的设计方式中,一个或多个组标识信息与一个或多个应用层数据对应。
在一种可能的设计方式中,应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
在一种可能的设计方式中,第一盘存命令包括参数信息、和/或时间信息,参数信息包括数据传输速率、重复次数、和/或覆盖等级,时间信息用于指示一段时间。
在一种可能的设计方式中,第四方面提供的随机接入装置还包括:处理模块。其中,在发送随机接入请求消息、且等待第二时间段后未收到响应消息的情况下,处理模块,用于确定本次随机接入失败。其中,第二时间段为随机接入装置发送消息后等待响应消息的时间,第二时间段是根据参数信息、或时间信息确定的,或者第二时间段是预设置的。
在一种可能的设计方式中,接收模块,用于接收来自第三设备的增加时间信息、和/或增加时间指示信息。其中,增加时间信息用于指示第三设备与第一设备之间传输数据的所需要的时间,增加时间指示信息用于指示在确定第二时间段时是否增加第三设备与第一设备之间传输数据的所需要的时间,第二时间段为随机接入装置发送消息后等待响应消息的时间。
需要说明的是,接收模块和发送模块可以分开设置,也可以集成在一个模块中,即收发模块。本申请对于接收模块和发送模块的具体实现方式,不做具体限定。
可选地,第四方面所述的随机接入装置还可以包括处理模块和存储模块,该存储模块存储有程序或指令。当处理模块执行该程序或指令时,使得第四方面所述的随机接入装置可以执行第二方面所述的方法。
需要说明的是,第四方面所述的随机接入装置可以是第二设备,例如终端设备,也可以是可设置于第二设备的芯片(系统)或其他部件或组件,本申请对此不做限定。
此外,第四方面所述的随机接入装置的技术效果可以参考第二方面中任一种可能的实现方式所述的随机接入方法的技术效果,此处不再赘述。
第五方面,提供一种随机接入装置。该随机接入装置包括:处理器,该处理器与存储器耦合,存储器用于存储计算机程序。
处理器用于执行存储器中存储的计算机程序,以使得如第一方面至第二方面中任一种可能的实现方式所述的随机接入方法被执行。
在一种可能的设计中,第五方面所述的随机接入装置还可以包括收发器。该收发器可以为收发电路或输入/输出端口。所述收发器可以用于该随机接入装置与其他设备通信。
需要说明的是,输入端口可用于实现第一方面至第二方面所涉及的接收功能,输出端口可用于实现第一方面至第二方面所涉及的发送功能。
在本申请中,第五方面所述的随机接入装置可以为第一设备或第二设备,或者设置于第一设备或第二设备内部的芯片或芯片系统。
此外,第五方面所述的随机接入装置的技术效果可以参考第一方面至第二方面中任一种实现方式所述的随机接入方法的技术效果,此处不再赘述。
第六方面,提供一种通信系统。该通信系统包括如第三方面所述的随机接入装置、如第四方面所述的随机接入装置。
或者,该通信系统包括如第五方面所述的用于实现如第一方面所述方法的随机接入装置和如第五方面所述的用于实现如第二方面所述方法的随机接入装置。
可选地,该通信系统还可以包括第三设备。
第七方面,提供了一种芯片系统,该芯片系统包括逻辑电路和输入/输出端口。其中,逻辑电路用于实现第一方面至第二方面所涉及的处理功能,输入/输出端口用于实现第一方面至第二方面所涉及的收发功能。具体地,输入端口可用于实现第一方面至第二方面所涉及的接收功能,输出端口可用于实现第一方面至第二方面所涉及的发送功能。
在一种可能的设计中,该芯片系统还包括存储器,该存储器用于存储实现第一方面至第二方面所涉及功能的程序指令和数据。
该芯片系统,可以由芯片构成,也可以包含芯片和其他分立器件。
第八方面,提供一种计算机可读存储介质,该计算机可读存储介质存储有计算机程序或指令;当该计算机程序或指令在计算机上运行时,使得第一方面至第二方面中任意一种可能的实现方式所述的随机接入方法被执行。
第九方面,提供一种计算机程序产品,包括计算机程序或指令,当该计算机程序或指令在计算机上运行时,使得第一方面至第二方面中任意一种可能的实现方式所述的随机接入方法被执行。
图1为本申请实施例提供的一些通信系统的架构示意图;
图2为本申请实施例提供的另一种通信系统的架构示意图;
图3为本申请实施例提供的一种RFID系统的架构示意图;
图4为本申请实施例提供的一种读写设备与标签设备的交互流程示意图;
图5为本申请实施例提供的一种标签设备的存储区的示意图;
图6为本申请实施例提供的一种随机接入方法的流程示意图;
图7为本申请实施例提供的另一种随机接入方法的流程示意图;
图8为本申请实施例提供的时序的示意图;
图9为本申请实施例提供的一种随机接入装置的结构示意图;
图10为本申请实施例提供的另一种随机接入装置的结构示意图。
下面将结合附图,对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统,例如通用移动通信系统 (universal mobile telecommunications system,UMTS)、码分多址(code division multiple access,CDMA)系统、无线局域网(wireless local area network,WLAN)、无线保真(wireless fidelity,Wi-Fi)系统、有线网络、车到任意物体(vehicle to everything,V2X)通信系统、设备间(device-to-device,D2D)通信系统、车联网通信系统、第4代(4th generation,4G)移动通信系统,如长期演进(long term evolution,LTE)系统、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统,第五代(5th generation,5G)移动通信系统,如新空口(new radio,NR)系统,以及未来的通信系统,如第六代(6th generation,6G)移动通信系统等。
本申请将围绕可包括多个设备、组件、模块等的系统来呈现各个方面、实施例或特征。应当理解和明白的是,各个系统可以包括另外的设备、组件、模块等,并且/或者可以并不包括结合附图讨论的所有设备、组件、模块等。此外,还可以使用这些方案的组合。
另外,在本申请实施例中,“示例地”、“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用示例的一词旨在以具体方式呈现概念。
本申请实施例中,“信息(information)”,“信号(signal)”,“消息(message)”,“信道(channel)”、“信令(singaling)”有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含义是一致的。“的(of)”,“相应的(corresponding,relevant)”和“对应的(corresponding)”有时可以混用,应当指出的是,在不强调其区别时,其所要表达的含义是一致的。
本申请实施例中,有时候下标如W
1可能会笔误为非下标的形式如W1,在不强调其区别时,其所要表达的含义是一致的。
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
为便于理解本申请实施例,首先以图1以及图2中示出的通信系统为例详细说明适用于本申请实施例的通信系统。示例性地,图1以及图2为本申请实施例提供的随机接入方法所适用的通信系统的架构示意图。
该通信系统包括第一设备和第二设备。其中,第一设备可以为接入网设备(例如图1中的微型基站(micro base station,micro BS)、接入点、接入回传一体化(integrated access and backhaul,IAB)节点、或宏站(macro BS)等)、或读写设备,第二设备可以为终端设备。可选地,该通信系统还可以包括第三设备(如图1中的(c)所示或如图2所示)。第三设备可以为激励源(helper),激励源可以为一种终端设备,或者一个接入网设备或者小站。第二设备、读写设备、或第三设备与接入网设备之间属于Uu接口传输,即空口传输,例如Uu接口专网物联网(private-IoT,P-IoT)传输、或侧行链路专网物联网传输,也可能为有线传输。
在一种场景下,第二设备可以部署在一体式架构下,具体可参照图1。
如图1中的(a)、或图1中的(b)所示,以基础覆盖为例,第一设备可以为接入网设备, 第二设备位于接入网设备提供的一个或多个小区(载波)的覆盖范围内,为第二设备服务的小区可以为一个或多个。当为第二设备的服务小区有多个时,第二设备可以按照载波聚合(carrier aggregation,CA)(或双连接(dual connectivity,DC)或协作多点传输方式工作,其中至少一个小区提供多于一种参数集(numerology)同时为第二设备提供无线资源。
如图1中的(c)所示,以补充覆盖为例,第一设备可以为读写设备,第二设备也可以位于第一设备或第三设备提供的覆盖范围内,第一设备与第二设备之间的通信可以看做终端之间的通信,也可以为基站或接入回传一体化(integrated access and backhaul,IAB)节点到终端的通信。
在另一种场景下,第二设备可以部署在分离式架构下,如图2所示,第三设备与第一设备(接入网设备或读写设备)空口传输,也可以是有线传输。分离式架构下,第三设备与第一设备有上行命令和下行命令,第三设备与第二设备只有下行命令,第二设备和第一设备之间有上行命令。
本申请中,可以根据第二设备收发信号的对端是否是同一个设备来区分一体式架构和分离式架构。例如,一体式架构:从第二设备角度看,第二设备收发信号的对端是同一个设备,如图1中的(a)、(b)、和(c)。分离式架构:从第二设备角度看,第二设备收发信号的对端不是同一个设备。如图2所示,第二设备接收来自第三设备的信号,并向第一设备发送信号,收发信号的对端不是同一个设备。
其中,接入网设备为位于上述通信系统的网络侧,且具有无线收发功能的设备或可设置于该设备的芯片或芯片系统,是指将终端接入到无线网络的无线接入网(radio access network,RAN)节点(或设备),可以称为基站(base station,BS)。该接入网设备包括但不限于:无线保真(wireless fidelity,Wi-Fi)系统中的接入点(access point,AP),如家庭网关、路由器、服务器、交换机、网桥等,演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(baseband unit,BBU),无线中继节点、无线回传节点、传输点(transmission and reception point,TRP或者transmission point,TP)等,还可以为5G,如,新空口(new radio,NR)系统中的gNB,或,传输点(TRP或TP),5G系统中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(BBU),或,分布式单元(distributed unit,DU)、集中单元(centralized unit,CU)、包括CU节点和DU节点的RAN设备、具有基站功能的路边单元(road side unit,RSU)等,或者还可以为卫星、或未来各种形式的基站。
其中,读写设备可以称为标签阅读器、读出装置、扫描器、读头、通信器、读卡器或读写器等,可以是手持或固定式读取(有时还可以写入)标签信息的设备,也可以是与标签通信的设备,形态可以为终端,也可以是基站,或者是一个具有读写功能的设备。
上述终端设备为接入上述通信系统,且具有无线收发功能的终端或可设置于该终端的芯片或芯片系统。该终端设备也可以称为用户设备(user equipment,UE)、用户装置、接入终端、用户单元、用户站、移动站、移动台(mobile station,MS)、远方 站、远程终端、移动设备、用户终端、终端、终端单元、终端站、终端装置、无线通信设备、用户代理或用户装置。
例如,本申请的实施例中的终端设备可以是电子标签、手机(mobile phone)、无线数据卡、个人数字助理(personal digital assistant,PDA)电脑、膝上型电脑(laptop computer)、平板电脑(Pad)、无人机、带无线收发功能的电脑、机器类型通信(machine type communication,MTC)终端、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、物联网(internet of things,IoT)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端(例如游戏机、智能电视、智能音箱、智能冰箱和健身器材等)、车载终端、具有终端功能的RSU。接入终端可以是蜂窝电话(cellular phone)、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、具有无线通信功能的手持设备(handset)、计算设备或连接到无线调制解调器的其它处理设备、可穿戴设备等。
其中,电子标签可以称为智能标签、标签设备、RFID标签、RFID应答器、或RFID数据载体等。射频识别技术可分为有源、无源和半有源三种。电子标签可以分为有源标签(active tag)、半无源标签(Semi-passive tag)和无源标签,无源标签也可以称为即无源的物联网设备。
又例如,本申请实施例中的终端设备可以是智慧物流中的快递终端(例如可监控货物车辆位置的设备、可监控货物温湿度的设备等)、智慧农业中的无线终端(例如可收集禽畜的相关数据的可穿戴设备等)、智慧建筑中的无线终端(例如智慧电梯、消防监测设备、以及智能电表等)、智能医疗中的无线终端(例如可监测人或动物的生理状态的可穿戴设备)、智能交通中的无线终端(例如智能公交车、智能车辆、共享单车、充电桩监测设备、智能红绿灯、以及智能监控以及智能停车设备等)、智能零售中的无线终端(例如自动售货机、自助结账机、以及无人便利店等)。又例如,本申请的终端设备可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元,车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请提供的方法。
本申请提供的通信系统可以应用于物流、交通、身份识别、防伪、资产管理、食品、信息统计、交易、查阅应用或安全控制等领域。例如,应用于图书管理、物流管理、水电气收费、门禁管理、货架管理或工业生产线管理等。本申请对于具体的应用场景不做限定。
需要说明的是,本申请实施例提供的随机接入方法,可以适用于图1和图2所示的任意两个节点之间,具体实现可以参考下述方法实施例,此处不再赘述。
应当指出的是,本申请实施例中的方案还可以应用于其他通信系统中,相应的名称也可以用其他通信系统中的对应功能的名称进行替代。
应理解,图1和图2仅为便于理解而示例的简化示意图,该通信系统中还可以包 括其他设备,例如,核心网网元,图1和图2中未予以画出。可选地,本申请实施例提供的随机接入方法还可以涉及接入网设备与核心网网元之间的通信。
对本申请实施例涉及的技术术语或流程进行介绍:
第一,无源RFID技术的基本工作原理:
图3为本申请实施例提供的一种可能的RFID系统的架构示意图。该RFID系统包括标签设备(可简称为标签)、和读写设备(也可称为读写器等)。其中,读写设备集成天线,天线用于收发信息。或者,读写设备与天线是分离设置。
结合图3,标签设备进入磁场后,接收读写设备发出的射频信号,标签设备凭借感应电流所获得的能量发送出存储在芯片中的产品信息(无源标签或被动标签),读写设备读取产品信息并解码后,送至中央信息系统进行有关数据处理。
第二,盘存:
标签设备接收读写设备指定的掩码信息和标志位,若标签设备的存储区信息与收到的掩码信息匹配,以及标签设备保存的标志位与收到的标志位一致时,即可进入盘存流程中,即发起随机接入到读写设备,并完成读写设备指示的相应的指令。
第三,读写设备与标签设备的交互流程:
图4示出了标签设备与读写设备之间的交互流程。在图4中,读写设备发送选择(select)命令,通过选择命令可以指示选择(selected,SL)标识(或盘存(inventoried)标识)以及一段掩码(mask),以便选择一组标签设备。
标签设备接收来自读写设备的选择命令,判断标签设备自身存储区对应位置存储的信息与选择命令中的掩码信息是否一致,若一致,则标签设备认为自身符合读写设备的选择标准。
如图4中的(a)和(b)所示,接下来,读写设备发送查询(Query)命令,查询命令携带标志位信息(例如选择标识或盘存标识)。符合上述读写设备的选择标准标签设备确定自身的标志位信息是否与读写设备查询命令中的标志位信息是否一致,若一致,则标签设备产生(0,2
Q-1)之间的随机数k,并生成一个16位随机数或伪随机数(16-bit random or pseudo-random,RN16)。
在一些情况中,如图4中的(b)所示,多个标签设备反馈的RN16可能出现碰撞,或者读写设备没有收到来自标签设备的RN16,此种情况下,读写设备可以通过发送调重复查询(Query Rep)命令调整Q值。响应于从读写设备接收的重复查询命令,标签设备产生(0,2
Q-1)之间的随机数m,标签设备执行m=m-1,当m值为0时,标签设备向读写设备发送随机数RN16,进入应答(Reply)状态。
在一些情况下,如图4中的(b)所示,读写设备发送重复查询命令后,在规定时段内(图4中T2时间)未检测到标签设备反馈确认消息(acknowledge,ACK)、或者收到的ACK中的RN16与自身的RN16不匹配,则进入仲裁(Arbitrate)状态,并将计数器减到0000h之后,它应翻转从7FFFh开始计数,读写设备继续发送重复查询命令,并等待标签设备反馈随机数RN16。
在另一些情况中,结合图4中的(a),读写设备未检测到冲突,即某一时刻仅有一个标签设备反馈RN16,则读写设备向该标签设备反馈确认消息。标签设备接收到来 自读写设备的有效的确认消息后,向读写设备发送标签信息。读写设备接收到来自标签设备的标签信息,若标签信息有效,说明读写设备对该便签的盘存已完成,读写设备可以开始对下一个标签设备进行盘存,反之,若标签信息无效,则读写设备向反馈无效标签信息的标签设备发送非确认(non-acknowledge,NACK)消息。
其中,标签信息包括但不限于如下一项或多项:标签设备的协议控制(protocol control,PC)位、产品电子码(electronic product code,EPC)和16位的循环冗余校验(cyclic redundancy check,CRC-16)。
在另一些情况下,结合图4中的(b),读写设备在接收到来自标签设备的RN16后,向标签设备发送的确认消息是无效的确认消息(携带无效的RN16),此种情况下,标签设备不向读写设备反馈标签信息,进而读写设备在一段时间内检测不到标签信息。此种情况下,读写设备继续发送重复查询命令,并等待标签设备反馈RN16。
其中,有效的确认消息,指的是携带有效的RN16的确认消息。有效的RN16,即标签设备在应答消息中携带的RN16。无效的确认消息,即携带无效RN16的确认消息。无效的RN16的数值与有效的RN16的数值不同。
下面对图4中示出的时间T1、T2、T3、T4进行阐述。
T1:读写设备发送一条下行消息后,等待标签设备反馈的时间。例如,T1可以是读写设备发送命令后到标签设备回复随机数的时间。
T2:标签设备发送一条消息后,等待读写设备反馈的最大时间。例如,T2可以是标签设备发送随机数后,到收到读写设备确认消息或者竞争解决消息响应的时间。
T3:在T1后,读写设备发送下一条命令前,等待第二设备反馈的时间。例如,读写设备发送一条消息后,等待标签设备反馈的最大时间是T1+T3。
T4:两条连续下行命令之间的最小时间间隔。
第四,标签设备的存储区:
标签设备的存储区被划分为四个不同的存储区,每一个存储区由一个或多个存储字组成。逻辑存储映射表如图5所示,这些存储区分别为:
(1)保留存储区(reserved):用于存储灭活和访问功能所需密码。其中,存储地址00h到1Fh存储灭活密码(kill passwd),00h为最低有效位(least significant bit,LSB),1Fh为最高有效位(most significant bit,MSB),20h到3Fh存储访问密码(access passwd)。
(2)EPC存储区。地址00h到0Fh的存储区域用于存储CRC,地址10h到1Fh的存储区用于存储PC位,20h及大于20h的地址存储用于识别标签设备附着对象的信息,例如EPC、可选的扩展协议控制(optional extended protocol control,optional XPC)。
(3)标签设备标识或标签标识符(tag-identification or tag identifier,TID)存储区。可选的,地址00h到07h存储8位的国际标准化组织及国际电工委员会(international organization for standardization/international electrotechnical commission,ISO/IEC)15693分配的类识别码(EPCglobal的代码为11100010_2)。地址07h以上的区域应含有充足的识别信息,使读写设备能唯一识别标签设备所支持的定制命令和(或)可选择性命令。对于ISO/IEC 15693分配的类号为11100010_2的标签设备,这些识别信息将构成一个比如12位字长的标签设备掩膜设计者标识符和一个比如12位字长的标签模型 码,标签掩膜设计者标识符存储在08h到13h,模型码存储在地址14h到1Fh。标签设备可以在TID区域中地址大于1Fh的区域存储标签和提供商的特有数据(例如,标签的序列号)。
(4)用户存储区。允许存储用户特有数据,该存储区的存储组织结构可以由用户定义。
在RFID协议中,通过统一的信令格式发送读写设备与标签设备之间的信令和数据,所有信令和数据都在一个协议层。在移动网络中,进行分层设计。如何将RFID技术与移动网络融合使用成为亟待解决的问题。例如,在RFID协议中,通过统一的信令格式发送确认消息和EPC。在RFID技术与移动网络融合的场景中,选择命令、查询命令、和确认消息等属于空口信令,EPC属于应用层的数据,如何发送空口信令、和应用层的数据成为亟待解决的问题。
另外,现有的标签设备接入读写设备过程中的时序关系是固定的,且是一体式架构下的时序,没有考虑补充覆盖的场景(如图1中的(c)所示的场景)和分离式架构的场景(如图2所示的场景),现有的时序关系并不适用于补充覆盖的场景和分离式架构的场景。
示例性地,现有技术中,标签设备和读写设备之间的交互通常应满足如下表1的时序要求,时序关系是固定的。
表1
表1中,RTcal为数据符号0和数据符号1的长度,Tpri=1/BLF,Tpri为反射链路脉冲重复间隔(backscatter-link pulse-repetition interval),BLF为反射链路频率(backscatter-link frequency,BLF)。
下面将结合图6-图8对本申请实施例提供的随机接入方法进行具体阐述。
示例性地,图6为本申请实施例提供的一种随机接入方法的流程示意图。该随机 接入方法可以适用于图1所示的任意两个节点之间的通信。
如图6所示,该随机接入方法包括如下步骤:
S601,第一设备向第二设备发送第一盘存命令。相应地,第二设备接收来自第一设备的第一盘存命令。
示例性地,第一盘存命令可用于指示一个或多个第二设备进行随机接入。
示例性地,第一盘存命令可以包括用于指示一个或者多个第二设备进行接入的条件,满足接入条件的第二设备进行随机接入。
示例性地,第一盘存命令可以包括应用层的数据。如此,可以尽快将应用层数据发送至第二设备。
例如,应用层的数据可以包括应用层的指令,如读指令、写指令、读写指令,读标识等。
在一些实施例中,应用层的数据可以承载在无线资源控制(radio resource control,RRC)消息、或媒体接入控制(media access control,MAC)数据包中。
例如,应用层的数据可以封装在RRC消息的容器(container)中、或者封装在与第一盘存命令一起下发的MAC数据包中。
一些实施例中,第一盘存命令还可以包括一个或多个组标识信息,一个组标识信息用于标识一个或多个第二设备。
例如,第一盘存命令包括组标识信息1和组标识信息2,组标识信息1用于标识第二设备1和第二设备2,组标识信息2用于标识第二设备3和第二设备4。该第一盘存命令可指示第二设备1、第二设备2、第二设备3和第二设备4接入第一设备。
可选地,可以通过组标识信息指示某组第二设备执行相关的操作。
一些实施例中,一个或多个组标识信息与一个或多个应用层数据对应。如此,可以指示组标识对应的第二设备接收对应的应用层数据,并根据该应用层数据进行相应处理或响应。
示例性地,假设第一盘存命令包括组标识信息1和组标识信息2,组标识信息1用于标识第二设备1和第二设备2,组标识信息2用于标识第二设备3和第二设备4。组标识信息1与读指令对应,组标识信息2与写指令对应。如此,第一设备可将读指令发送给第二设备1和第二设备2,将写指令发送给第二设备3和第二设备4。
需要说明的是,上述仅为本申请实施例的一个示例,本申请不对组标识信息的数量进行限定,不对组标识信息标识的第二设备的数量进行限定,组标识信息可以标识一个第二设备,本申请对组标识信息的名称进行限定,组标识信息也可以称为标识信息。
可选地,第一盘存命令可以但不局限于是查询(Query)命令、或选择(Select)命令、重复查询命令、或寻呼无源链路(paging passive link)命令。
示例性地,第一设备可以为读写设备、或接入网设备。
当第一设备为读写设备时,本申请实施例提供的随机接入方法,还可以包括:接入网设备向第一设备发送盘存命令。相应地,第一设备接收来自接入网设备的盘存命令。
可选地,盘存命令可以包括应用层的数据,还可以包括一个或多个组标识信息。
当第一设备为接入网设备时,本申请实施例提供的随机接入方法还可以包括:核心网网元向第一设备发送盘存命令。相应地,第一设备接收来自核心网网元的盘存命令。
可选地,盘存命令可以是应用层触发的。例如,应用服务器向核心网网元发送的盘存命令。或者,第一设备应用层触发的第一盘存命令。
S602,第二设备向第一设备发送随机接入请求消息。相应地,第一设备接收来自第二设备的随机接入请求消息。
示例性地,随机接入请求消息可用于请求接入第一设备。
一些实施例中,第二设备确定发起随机接入的时刻或者时隙,例如,通过时隙ALOHA方式向第一设备发起随机接入或者发送随机数进行接入。其中,时隙ALOHA方式是一种防碰撞算法。
可选地,随机接入请求消息可以包括随机数RN16,关于随机数RN16的具体实现方式可参照上述图4中相关阐述,此处不再赘述。
可选地,随机接入请求消息可以包括一个或多个组标识信息和/或随机数信息。例如,随机数信息可以为随机数RN16。
示例性地,随机接入请求消息也可以理解为第一盘存命令的响应消息,本申请不对随机接入请求消息的名称进行限定。
S603,第一设备向第二设备发送随机接入成功消息。相应地,第二设备接收来自第一设备的随机接入成功消息。
示例性地,随机接入成功消息可用于指示第二设备已成功接入第一设备。
在一些实施例中,随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
示例性地,第一盘存命令包括应用层的数据,或者随机接入成功消息包括应用层的数据。也就是说,应用层数据可以是第一设备通过第一盘存命令发给第二设备的,或者通过随机接入成功消息发给第二设备的。
例如,第一盘存命令包括应用层的数据,且随机接入成功消息不包括应用层的数据,可以指在S601时有应用层的数据要发给第二设备,在S603时没有应用层的数据要发送第二设备。
例如,第一盘存命令不包括应用层的数据,且随机接入成功消息包括应用层的数据,可以指在S601时没有应用层的数据要发送,在S603时有应用层的数据要下发。
又示例性地,第一盘存命令包括应用层的数据,且随机接入成功消息包括应用层的数据。可以指在S601时有应用层的数据要发给第二设备,且在S603时有新的应用层的数据要下发。
在一些实施例中,与上述S601类似,在S603中,应用层的数据可以承载在RRC消息、或MAC数据包中。示例性的,应用层数据可以和冲突解决消息一起通过MAC数据包发送至第二设备。
例如,应用层的数据可以封装在RRC消息的容器(container)中、如RRC消息中的非接入层(non-access stratum,NAS)消息或者封装在与随机接入成功消息一起下发的MAC数据包中。
可选地,随机接入成功消息可以但不局限于是冲突解决消息、或确认消息。
可选地,随机接入成功消息可以包括随机数RN16。其中,该RN16可以是随机接入请求消息中的RN16。
在一种可能的设计方式中,第一设备可以在发送随机接入成功消息后,向第二设备发送应用层的数据。
示例性地,随机接入成功消息可以不包括应用层数据,在竞争解决后,第一设备发送应用层的数据给第二设备。
在一种可能的设计方式中,本申请实施例提供的方法,还可以包括:第二设备向第一设备发送数据。相应地,第一设备接收来自第二设备的数据。
示例性地,第二设备可以向第一设备发送标签信息,关于标签信息的具体实现方式可参照上述图4中的阐述,此处不再赘述。
可选地,第二设备向第一设备发送数据这一步骤可以在第一设备收到随机接入成功消息后执行。
基于图6所示的随机接入方法,第一设备向第二设备发送第一盘存命令,接收来自第二设备的随机接入请求消息。该第一盘存命令用于指示一个或多个第二设备进行随机接入,随机接入请求消息用于请求接入第一设备,第一设备向第二设备发送随机接入成功消息。其中,第一盘存命令包括应用层的数据,和/或随机接入成功消息包括应用层的数据。如此,第一设备可以将第一盘存命令和应用层的数据一起发给第二设备,和/或将随机接入成功消息和应用层的数据一起发给第二设备。在分层设计的协议架构中,为应用层数据的下发定义了可能的传输时间点以及流程,可以实现RFID技术与移动网络融合使用。另外,在发送第一盘存命令时发送应用层的数据,不需要等待竞争解决后再下发应用层的数据,可以节省盘存时延,提高盘存速率。
示例性地,图7为本申请实施例提供的另一种随机接入方法的流程示意图。该随机接入方法可以适用于图1、或图2所示的任意两个节点之间的通信。例如应用于包括第三设备的通信系统中。
如图7所示,该随机接入方法包括如下步骤:
S701,第一设备向第三设备发送第一盘存命令。相应地,第三设备接收来自第一设备的第一盘存命令。
示例性地,第一盘存命令用于指示一个或多个第二设备进行随机接入。
示例性地,第一盘存命令可以包括应用层的数据。
一些实施例中,第一盘存命令还包括一个或多个组标识信息,一个组标识信息用于标识一个或多个第二设备。
一些实施例中,一个或多个组标识信息与一个或多个应用层数据对应。
一些实施例中,应用层的数据承载在RRC消息、或媒体接入控制MAC数据包中。
需要说明的是,关于第一盘存命令的具体实现方式可参照上述S601中对应的阐述,此处不再赘述。
示例性地,第一设备可以为读写设备、或接入网设备。
当第一设备为读写设备时,本申请实施例提供的随机接入方法还可以包括:接入网设备向第一设备发送盘存命令。相应地,第一设备接收来自接入网设备的盘存命令。
可选地,盘存命令可以包括应用层的数据,还可以包括一个或多个组标识信息。
当第一设备为接入网设备时,本申请实施例提供的随机接入方法还可以包括:核心网网元向第一设备发送盘存命令。相应地,第一设备接收来自核心网网元的盘存命令。
可选地,盘存命令可以是应用层触发的。例如,应用服务器向核心网网元发送的盘存命令。
S702,第三设备向第二设备发送第一盘存命令。相应地,第二设备接收来自第三设备的第一盘存命令。
需要说明的是,第三设备从第一设备接收的第一盘存命令可以是第三设备能够解读的命令,第三设备向第二设备发送的第一盘存命令可以是第二设备能够解读的命令,这两个命令包括的内容、和功能等可以相同或者部分相同。
可选地,第三设备可以向第二设备发送数据,例如第三设备有自己要发送给第一设备的数据或消息,该数据可以与第一盘存命令再同一步骤中发给第二设备,也可以单独发送,本申请对此不进行限定。
S703,第二设备向第一设备发送随机接入请求消息。相应地,第一设备接收来自第二设备的随机接入请求消息。
示例性地,随机接入请求消息可用于请求接入第一设备。
需要说明的是,关于S703的具体实现方式可参照上述S602,此处不再赘述。
S704,第一设备向第三设备发送随机接入成功消息。相应地,第三设备接收来自第一设备的随机接入成功消息。
可选地,随机接入成功消息用于指示第二设备已成功接入第一设备。
在一些实施例中,随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。具体实现方式可参照上述S603,此处不再赘述。
在一些实施例中,在S704中,应用层的数据可以承载在RRC消息、或MAC数据包中。
需要说明的是,关于随机接入成功消息的具体实现方式可参照上述S603,此处不再赘述。
在一种可能的设计方式中,第一设备可以在发送随机接入成功消息后,通过第三设备向第二设备发送应用层的数据。
示例性地,随机接入成功消息可以不包括应用层数据,在竞争解决后,第一设备发送应用层的数据给第三设备,由第三设备将该应用层数据发给第二设备。
S705,第三设备向第二设备发送随机接入成功消息。相应地,第二设备接收来自第三设备的随机接入成功消息。
需要说明的是,与第一盘存命令类似,第三设备从第一设备接收的随机接入成功消息可以是第三设备能够解读的消息,第三设备向第二设备发送的随机接入成功消息可以是第二设备能够解读的消息,这两个消息包括的内容、和功能等可以相同。
在一种可能的设计方式中,本申请实施例提供的方法,还可以包括:第二设备向第一设备发送数据。相应地,第一设备接收来自第二设备的数据。
示例性地,第二设备可以向第一设备发送标签信息,关于标签信息的具体实现方 式可参照上述图4中的阐述,此处不再赘述。
可选地,第二设备向第一设备发送数据这一步骤可以在第一设备收到随机接入成功消息后执行。
基于图7所示的随机接入方法,第一设备通过第三设备向第二设备发送第一盘存命令,接收来自第二设备的随机接入请求消息,通过第三设备向第二设备发送随机接入成功消息。其中。该第一盘存命令用于指示一个或多个第二设备进行随机接入,随机接入请求消息用于请求接入第一设备,第一盘存命令包括应用层的数据,和/或随机接入成功消息包括应用层的数据。如此,第一设备可以将第一盘存命令和应用层的数据一起下发,和/或将随机接入成功消息和应用层的数据一起下发。在分层设计的协议架构中,为应用层数据的下发定义了可能的传输时间点以及流程,可以实现RFID技术与移动网络融合使用。另外,在发送第一盘存命令时发送应用层的数据,不需要等待竞争解决后再下发应用层的数据,可以节省盘存时延,提高盘存速率。
本申请提供的通信系统中第一设备、第二设备、第三设备之间信令或消息的传输需要遵循时序关系,下面对时序关系进行阐述。
需要说明的是,下述时序的实现方式可以与上述图6、图7所示的方法结合使用,或者下述时序的实现方式可以单独使用。
示例性地,可以将图1中的(a)、和图1中的(b)、和图1中的(c)(在IAB节点与第二设备通信的情况下)所示的场景称为通信系统中不包括第三设备的场景,例如通信系统中包括第一设备和第二设备、且不包括第三设备。图1中的(c)(在激励源与第二设备通信、宏站为第一设备的情况下)和图2所示的场景称为通信系统中包括第一设备、第二设备、和第三设备场景(以下简称为通信系统中包括第三设备的场景)。
通信系统包括第三设备的场景中的一体式架构下,参照图1中的(c),第二设备需通过第三设备接收来自第一设备的消息,第二设备需通过第三设备向第一设备发送消息。在分离式架构下,如图2所示,第二设备需通过第三设备接收来自第一设备的消息,第二设备直接向第一设备发送响应消息。通信系统中包括第三设备的场景与通信系统中不包括第三设备的场景相比,在传输过程中,增加了第一设备和第三设备之间的传输流程,可能会增加第三设备与第一设备之间传输数据的所需要的时间。
下面对第四时间段、第一时间段、第三时间段、和第二时间段的实现方式进行阐述。
在一种可能的设计方式中,设备发送的两条下行命令之间的最小时间间隔为第四时间段T4,通信系统中包括第三设备的场景与通信系统中不包括第三设备的场景中,第四时间段T4的取值可以相同。
可选地,第四时间段T4也可以理解为两条下行信令之间的等待的时间,该时间可以是第二设备处理信令的时间。
示例性地,第一设备或第三设备发送选择命令和查询命令的最小时间间隔可以为第四时间段T4。
对于通信系统中不包括第三设备的场景,第一设备发送选择命令后,间隔第四时间段T4,第一设备发送查询命令。
图8为本申请实施例提供的通信系统中包括第三设备的场景下时序的示意图,其中,图8中的(a)对应图1中的(c)所示的场景,图8中的(b)对应图2所示的场景。
对于通信系统中包括第三设备的场景,如图8中的(a)或图8中的(b)所示,第一设备向第三设备发送选择命令,第三设备接收选择命令并向第二设备发送该选择命令。间隔第四时间段T4,第一设备向第三设备发送查询命令,第三设备接收查询命令并向第二设备发送该查询命令。从第一设备的角度看,第一设备发送两条命令的时间间隔不受第一设备和第三设备之间的传输过程影响,可以为第四时间段T4。从第三设备的角度看,第三设备发送两条命令的时间间隔与第一设备发送两条命令的时间间隔相同,不受第一设备和第三设备之间的传输过程影响。
在一种可能的设计方式中,第一时间段可以是发送下行消息后,等待第二设备反馈的时间。
可选地,第一时间段可以是第二设备对接收的下行消息的处理时延。或者还可以包括下行消息传输时间,或者还可以包括下一条信令的准备时间,或者,第一时间段可以包括第二设备对接收的命令的处理时延、和第一设备和第三设备之间传输数据的所需要的时间。
在一些实施例中,第一时间段可以是根据编码方式、和/或覆盖等级确定的。
或者,在一些实施例中,第一时间段可以是根据编码方式和/或覆盖等级、和增加时间信息确定的。例如根据编码方式、覆盖等级、和增加时间信息确定第一时间段,根据编码方式和增加时间信息确定第一时间段,根据覆盖等级和增加时间信息确定第一时间段。
例如,覆盖可以包括基础覆盖(例如图1中的(a)、或图1中的(b)),或补充覆盖(图1中的(c)、或图2)。若第二设备处于图1中的(a)、或图1中的(b)所示的覆盖场景中,可以认为覆盖等级较高。若第二设备处于图1中的(a)、或图2所示的覆盖场景中,可以认为覆盖等级较低。
例如,若覆盖等级较低,则对应的第一时间段的值更大。
如此,可以确定不同覆盖下的时序约束,可以更好的适配不同架构和不同场景。
可选地,增加时间信息可用于指示第三设备与第一设备之间传输数据的所需要的时间。
可选地,增加时间信息可以包括第三设备与第一设备之间传输数据的所需要的时间,还可以包括第三设备处理数据的时间。
本申请实施例中可以用Tb表示增加时间信息所指示的时间。
例如,增加时间信息Tb可以是第三设备、或第一设备根据第三设备与第一设备之间的接口、或连接确定的。
或者,另一些实施例中,第一时间段可以是预设置的。
例如第一时间段是协议约定的时间。或者,第一时间段可以是第一设备自己确定的时间。
可选地,通信系统不包括第三设备的场景中,用T1表示第一时间段。
结合图4,T1表示通信系统不包括第三设备的场景中,第一设备发送一条消息后, 等待第二设备反馈的时间。
可选地,通信系统包括第三设备的场景中,对于第一设备,用T1'表示第一时间段;对于第三设备,用T1”表示第一时间段。
结合图8中的(a)或图8中的(b),T1'表示通信系统包括第三设备的场景中,第一设备发送一条消息后,等待第二设备反馈的时间。T1”表示通信系统包括第三设备的场景中,第三设备发送一条消息后,等待第二设备反馈的时间。
可选地,通信系统包括第三设备的场景中,在一体式架构下,第二设备通过第三设备向第一设备发送消息,如图8中的(b)所示,对于第一设备,T1'=T1+2×Tb,Tb为第一设备和第三设备之间传输数据的所需要的时间,还可以包括第三设备的处理数据的时间,对于第三设备T1”=T1。T1'中增加第一设备和第三设备之间传输查询命令的时间、以及传输随机接入请求消息的时间。
可选地,通信系统包括第三设备的场景中,在分离式架构下,第二设备可直接向第一设备发送消息,如图8中的(b)所示,对于第一设备,T1'=T1+Tb,Tb为增加时间信息所指示的时间,对于第三设备T1”=T1。T1'中增加第一设备和第三设备之间传输查询命令的时间。
如此,确定等待第二设备反馈的时间时(第一时间段)考虑了第三设备与第一设备之间传输数据的所需要的时间可以更好的适配不同架构和不同场景。
在一种可能的设计方式中,第三时间段为在第一时间段后,发送下一条命令前,等待第二设备反馈的时间。
可选地,第三时间段T3可以是预设置的。
例如,第三时间段可以是协议规定的、或第一设备自己确定的时间。
示例性地,通信系统不包括第三设备的场景中,第一设备发送一条消息后,等待第一设备反馈的最大时间是T1+T3。该时间可以是协议规定的,或者由其他设备通知的。
示例性地,通信系统包括第三设备的场景中,在一体式架构下,第一设备发送一条消息后,等待第一设备反馈的最大时间是T1'+T3=T1+T3+2×Tb;第三设备发送一条消息后,等待第一设备反馈的最大时间是T1”+T3=T1+T3。
示例性地,信系统包括第三设备的场景中,在分离式架构下,第一设备发送一条消息后,等待第一设备反馈的最大时间是T1'+T3=T1+T3+Tb;第三设备发送一条消息后,等待第一设备反馈的最大时间是T1”+T3=T1+T3。
在一种可能的设计方式中,本申请实施例提供的随机接入方法,还可以包括:第一设备发送第一盘存命令后,在第一时间段未接收到随机接入请求消息的情况下,继续等待第三时间段,或者停止等待并发送下一命令。
如图4中的(b)所示,以第一盘存命令为重复查询命令为例,第一设备发送重复查询命令,等待T1时间后,未收到响应消息,继续等待T3时间。若T3时间后,还未收到响应消息,第一设备可以认为此时没有第二设备接入,可以进行后续的盘存。
或者,第一设备发送重复查询命令,等待T1时间后,未收到响应消息,可以停止等待,对另一个第二设备进行盘存、或者发送下一命令。
如此,针对不同架构和不同场景,提出确定等待第一设备反馈的最大时间实现方 式,可以更好的适配不同架构和不同场景。
需要说明的是,本申请不限定在包括第三设备的场景中确定等待第二设备反馈的时间时(第二时间段)时,是否必须增加第一设备和第三设备之间传输数据的所需要的时间,例如可以根据协议规定来确定是否增加。
在一种可能的设计方式中,第二时间段为第二设备发送消息后,等待响应消息的时间。也可以理解为发送完上行命令后,等待响应的时间。
例如,第二设备向第一设备发送随机接入请求消息、或者第一接入消息、或者针对第一盘存命令的响应消息后,等待响应消息的时长为第二时间段。
示例性地,第二设备可以选择一个接入时隙,在该选择的时隙发送随机接入请求消息,该随机接入请求消息可以包括随机数RN16。第二设备发送随机接入请求消息后,可以启动一个定时器,用于等待反馈,当超过第二时间段时,则确定本次随机接入失败。
在一些实施例中,第二时间段可以是根据参数信息、或时间信息确定的,或者,第二时间段可以是根据参数信息和增加时间信息确定的,或者,第二时间段是预设置的。
可选地,第一盘存命令可以包括参数信息、和/或时间信息。也就是说,参数信息、和/或时间信息可以是第二设备从第一设备或第三设备接收的。
在一些实施例中,第二时间段是可以协议规定的。第一设备或第三设备向第二设备发送指示信息,指示信息可用于指示第二设备根据指示信息从协议中确定所使用的具体时间。
示例性地,上述S601、S701、以及S702中的第一盘存命令可以包括参数信息、和/或时间信息。
可选地,参数信息可以包括数据传输速率、重复次数、编码方式、调制方式(例如开关键控(OOK),幅移键控(ASK),二进制相移键控(binary phase shift keying,BPSK),正交相移键控(quadrature phase shift keying,QPSK))、帧结构类型(例如长或段)和/或覆盖等级。
例如,重复次数可以为第二设备发送某一消息的重复次数。例如,在上述S602中第二设备发送随机接入请求消息可以是发送多次,例如发送N次,则重复次数为N,N为大于或等于0的整数。
一些实施例中,第二时间段等于参数信息中的参数与系数的乘积。
示例性地,假设参数信息包括数据传输速率、重复次数、和覆盖等级,则第二时间段=数据传输速率×重复次数×覆盖等级×系数。可选地,确定第二时间段所需要的参数可以为上述参数的一项或者多项。具体的系数也可以没有。
可选地,系数可以包括但不限于如下一项或多项:Tari和Tpri。其中,Tari可以为字符“0”所对应的传输时长、或字符“1”所对应的传输时长,Tpri=1/BLF。
如此,在确定第二时间段时考虑数据传输速率、重复次数、和/或覆盖等级,可以确定不同覆盖、不同重复次数和/或不同传输速率下的时间约束,可以更好的适配不同架构和不同场景。
假设参数信息包括数据传输速率、重复次数、和覆盖等级,系数包括Tari和Tpri, 则第二时间段=传输速率×重复次数×覆盖等级×Tari×Tpri。
一些实施例中,第二时间段为协议规定的取值或者取值范围。具体的,第二设备可以根据第一设备或者第三设备发送的配置信息,确定所使用协议中规定的第二时间段取值或取值范围。
示例性地,配置信息可以为上述参数信息中的至少一项,协议规定的可以为取值或者取值范围的表格。比如指示第二设备使用速率1,覆盖等级2,则可以通过协议查表找到对应第二时间段的取值或者取值范围。
一些实施例中,第二时间段=根据参数信息确定的时间+增加时间信息指示的时间。
示例性地,假设参数信息包括数据传输速率、重复次数、和覆盖等级至少一种,则第二时间段=(数据传输速率×重复次数×覆盖等级)中至少一种×系数+增加时间信息指示的时间。
假设参数信息包括数据传输速率、重复次数、和覆盖等级,系数包括Tari和Tpri,则第二时间段=传输速率×重复次数×覆盖等级×Tari×Tpri+增加时间信息指示的时间。
对于分离式架构下,可以根据参数信息和增加时间信息确定的第二时间段,不仅考虑了覆盖等级、重复次数和/或传输速率,还考虑了第三设备与第一设备之间传输数据的所需要的时间,可以更好的适配分离式架构。
具体的,增加时间信息指示的时间可以为具体需要增加的计算第二时间段所需要额外的时间。
一些实施例中,第二时间段=根据参数信息确定的时间+增加时间信息。
其中增加时间信息可以根据第二参数配置信息确定的,第二参数配置信息可以为参数信息中至少一种,如上述所述,例如速率、覆盖等等。也可以包括所使用时间等级指示等。第二参数配置信息可以由第三设备发送至第二设备,计算方式参考上述第二时间段的计算方式。
可选的,增加时间信息可以为协议规定的。第二设备可以根据第三设备发送的配置信息,在协议中确定最终的使用的时间。
下面结合图4和图8对第二时间段的实现方式进行阐述。
可选地,通信系统不包括第三设备的场景中,用T2表示第二时间段。
结合图4,T2表示通信系统不包括第三设备的场景中,第二设备发送一条消息后,等待响应消息的时间。
可选地,通信系统包括第三设备的场景中,用T2'表示第二时间段。
结合图8中的(a)或图8中的(b),T2'表示通信系统包括第三设备的场景中,第二设备发送一条消息后,等待响应消息的时间。
可选地,通信系统包括第三设备的场景中,在一体式架构下,第二设备通过第三设备向第一设备发送消息,如图8中的(b)所示,T2'=T2+2×Tb,Tb为增加时间信息所指示的时间。T2'中增加第一设备和第三设备之间传输随机接入请求消息的时间、以及传输随机接入成功消息的时间。或者,第二设备可以根据增加时间指示信息确定是否增加Tb。
可选地,增加时间指示信息可用于指示在确定第二时间段时是否增加第三设备与第一设备之间传输数据的所需要的时间。
可选地,通信系统包括第三设备的场景中,在分离式架构下,第二设备可直接向第一设备发送消息,如图8中的(b)所示,T2'=T2+Tb,Tb为增加时间信息所指示的时间。T1'中增加第一设备和第三设备之间传输随机接入成功消息的时间。或者,第二设备可以根据增加时间指示信息确定是否增加Tb。
需要说明的是,图8的(b)中的Tb只是示意,同一链路上行和下行传输时间可能不同。本申请实施例中,同一链路上行对应的Tb取值与下行对应的Tb取值可以相同、或者可以不相同,本申请对此不进行限定。
一些实施例中,时间信息可用于指示一段时间。
示例性地,第一设备可以发送本次盘存中第二设备使用的第二时间段的时间(时间信息),第二设备可直接将时间信息指示的时长作为第二时间段。
例如时间信息包括第三设备与第一设备之间传输数据的所需要的时间,还可以包括第三设备处理数据的时间。
或者,第二设备可以根据时间信息和时间增加信息确定第二时间段,第二时间段=时间信息指示的时间+时间增加信息指示的时间。例如时间信息不包括第三设备与第一设备之间传输数据的所需要的时间,还可以包括第三设备处理数据的时间。
一些实施例中,第二时间段可以是预设置的。
示例性地,第二时间段可以是协议规定的。例如,协议规定不同覆盖等级或者数据传输速率对应的第二时间段,第二设备使用根据覆盖等级或者数据传输速率对应的第二时间段取值。例如,第一设备通过显示或者隐式的方式向第二设备指示覆盖等级或者数据传输速率。
例如,第一设备通过第一盘存命令显示指示覆盖等级,比如指示覆盖等级为1,则第二设备将协议中覆盖等级1对应的时间作为第二时间段的取值。
例如,第二设备根据接收的消息或者数据判断所使用的覆盖等级,如通过接收消息判断使用的重复次数或者覆盖等级,则计算时使用对应覆盖等级信息。
例如,第二设备根据从第一设备或第三设备接收的信息,显示或者隐式的方式确定第二时间段。
在一种可能的设计方式中,本申请实施例提供的随机接入方法,还可以包括:第三设备向第二设备发送增加时间信息、和/或增加时间指示信息。相应地,第二设备接收来自第三设备的增加时间信息、和/或增加时间指示信息。
可选地,增加时间指示信息可用于指示在确定第二时间段时是否增加第三设备与第一设备之间传输数据的所需要的时间。
示例性地,增加时间指示信息可用于指示第二设备是否采用增加时间信息确定第二时间段。
例如,若增加时间指示信息为“1”指示采用增加时间信息确定第二时间段,则第二设备根据参数信息和增加时间信息确定第二时间段。若增加时间指示信息为“0”指示不采用增加时间信息确定第二时间段,则第二设备根据参数信息确定第二时间段。
在一种可能的设计方式中,第二时间段可以为一个时间范围。
示例性地,若第二时间段是一个时间范围,则在第二时间段的下界取值之前,第二设备可以不对来自第一设备的数据解码,在达到第二时间段的下界取值后,开始解 码。第二时间段的上界取值则为第二设备等待第一设备发送数据的最大时间,或者尝试解码的最大时间。
在一种可能的设计方式中,本申请实施例提供的随机接入方法,还可以包括:在发送随机接入请求消息、且等待第二时间段后未收到响应消息的情况下,第二设备确定本次随机接入失败。
可选地,第二设备确定本次随机接入失败后,可以等待进入下次盘存,或者根据第一设备的指示进行后续操作。
需要说明的是,在第一设备、第二设备、第三设备之间传输的流程中,所涉及的任何信令、或消息之间的时序关系均可参考上述阐述,信令、或消息可以不是上述实施例中提到的信令、或消息。
例如,第二时间段为第二设备发送消息后等待响应消息的时长。若超时可认为连接有问题或者解码有问题,可以进入一个与网络测没有连接的状态。
本申请实施例上述方法,充分考虑各个应用场景,提供了一体式架构下、以及分离式架构下各个时间段(时隙)的计算方式,用于第一设备、第二设备、和第三设备确定等待的时长,可适配不同架构和不同场景下的时间要求。
本申请中,除特殊说明外,各个实施例之间相同或相似的部分可以互相参考。在本申请中各个实施例、以及各实施例中的各个实施方式/实施方法/实现方法中,如果没有特殊说明以及逻辑冲突,不同的实施例之间、以及各实施例中的各个实施方式/实施方法/实现方法之间的术语和/或描述具有一致性、且可以相互引用,不同的实施例、以及各实施例中的各个实施方式/实施方法/实现方法中的技术特征根据其内在的逻辑关系可以组合形成新的实施例、实施方式、实施方法、或实现方法。以下所述的本申请实施方式并不构成对本申请保护范围的限定。
以上结合图1-图7详细说明了本申请实施例提供的随机接入方法。以下结合图9-图10详细说明本申请实施例提供的随机接入装置。
图9为可用于执行本申请实施例提供的一种随机接入装置的结构示意图。随机接入装置900可以是第一设备、第二设备、或第三设备,也可以是应用于第一设备、第二设备、或第三设备中的芯片或者其他具有相应功能的部件。如图9所示,随机接入装置900可以包括处理器901。可选地,随机接入装置900还可以包括存储器902和收发器903中的一个或多个。其中,处理器901可以与存储器902和收发器903中的一个或多个耦合,如可以通过通信总线连接,处理器901也可以单独使用。
下面结合图9对随机接入装置的各个构成部件进行具体的介绍:
处理器901是随机接入装置900的控制中心,可以是一个处理器,也可以是多个处理元件的统称。例如,处理器901是一个或多个中央处理器(central processing unit,CPU),也可以是特定集成电路(application specific integrated circuit,ASIC),或者是被配置成实施本申请实施例的一个或多个集成电路,例如:一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(field programmable gate array,FPGA)。
其中,处理器901可以通过运行或执行存储在存储器902内的软件程序,以及调用存储在存储器902内的数据,执行随机接入装置900的各种功能。
在具体的实现中,作为一种实施例,处理器901可以包括一个或多个CPU,例如图9中所示的CPU0和CPU1。
在具体实现中,作为一种实施例,随机接入装置900也可以包括多个处理器,例如图9中所示的处理器901和处理器904。这些处理器中的每一个可以是一个单核处理器(single-CPU),也可以是一个多核处理器(multi-CPU)。这里的处理器可以指一个或多个通信设备、电路、和/或用于处理数据(例如计算机程序指令)的处理核。
可选地,存储器902可以是只读存储器(read-only memory,ROM)或可存储静态信息和指令的其他类型的静态存储通信设备,随机存取存储器(random access memory,RAM)或者可存储信息和指令的其他类型的动态存储通信设备,也可以是电可擦可编程只读存储器(electrically erasable programmable read-only memory,EEPROM)、只读光盘(compact disc read-only memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储通信设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质,但不限于此。存储器902可以和处理器901集成在一起,也可以独立存在,并通过随机接入装置900的输入/输出端口(图9中未示出)与处理器901耦合,本申请实施例对此不作具体限定。
示例性地,输入端口可用于实现上述任一方法实施例中由第一设备、第二设备、或第三设备执行的接收功能,输出端口可用于实现上述任一方法实施例中由第一设备、第二设备、或第三设备执行的发送功能。
其中,所述存储器902可用于存储执行本申请方案的软件程序,并由处理器901来控制执行。上述具体实现方式可以参考下述方法实施例,此处不再赘述。
可选地,收发器903,用于与其他随机接入装置之间的通信。例如,随机接入装置900为第一设备时,收发器903可以用于与第二设备和/或第三设备通信。又例如,随机接入装置900为第二设备时,收发器903可以用于与第一设备、或第三设备通信。又例如,随机接入装置900为第三设备时,收发器903可以用于与第一设备、或第二设备通信。此外,收发器903可以包括接收器和发送器(图9中未单独示出)。其中,接收器用于实现接收功能,发送器用于实现发送功能。收发器903可以和处理器901集成在一起,也可以独立存在,并通过随机接入装置900的输入/输出端口(图9中未示出)与处理器901耦合,本申请实施例对此不作具体限定。
需要说明的是,图9中示出的随机接入装置900的结构并不构成对该随机接入装置的限定,实际的随机接入装置可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。
其中,上述图2-图8中第一设备的动作可以由图9所示的随机接入装置900中的处理器901调用存储器902中存储的应用程序代码以指令第一设备执行。
上述图2-图8中第二设备的动作可以由图9所示的随机接入装置900中的处理器901调用存储器902中存储的应用程序代码以指令第二设备执行,本实施例对此不作任何限制。
当随机接入装置为第一设备时,随机接入装置900可执行上述方法实施例中的第一设备所涉及的任一种或多种可能的设计方式;当随机接入装置为第二设备时,随机 接入装置900可执行上述方法实施例中的第二设备所涉及的任一种或多种可能的设计方式。
需要说明的是,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
图10为本申请实施例提供的另一种随机接入装置的结构示意图。为了便于说明,图10仅示出了该随机接入装置的主要部件。
该随机接入装置1000包括发送模块1001和接收模块1002。该随机接入装置1000可以是前述方法实施例中的第一设备、第二设备、或第三设备。发送模块1001,也可以称为发送单元,用以实现上述任一方法实施例中由第一设备、第二设备、或第三设备执行的发送功能。接收模块1002,也可以称为接收单元,用以实现上述任一方法实施例中由第一设备、第二设备、或第三设备执行的接收功能。
需要说明的是,发送模块1001和接收模块1002可以分开设置,也可以集成在一个模块中,即收发模块。本申请对于接收模块和发送模块的具体实现方式,不做具体限定。该收发模块可以由收发电路、收发机、收发器或者通信接口构成。
可选地,随机接入装置1000还可以包括处理模块1003和存储模块(图10中未示出),该存储模块存储有程序或指令。当处理模块1003执行该程序或指令时,使得随机接入装置1000可以执行上述任一方法实施例所述的方法。
处理模块1003,可以用于实现上述任一方法实施例中由第一设备、第二设备、或第三设备执行的处理功能。该处理模块1003可以为处理器。
在本实施例中,该随机接入装置1000以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指特定ASIC,电路,执行一个或多个软件或固件程序的处理器和存储器,集成逻辑电路,和/或其他可以提供上述功能的器件。在一个简单的实施例中,本领域的技术人员可以想到该随机接入装置1000可以采用图9所示的随机接入装置900的形式。
比如,图9所示的随机接入装置900中的处理器901可以通过调用存储器902中存储的计算机执行指令,使得上述方法实施例中的随机接入方法被执行。
具体地,图10中的处理模块1003和存储模块的功能/实现过程可以通过图9中所示的随机接入装置900中的收发器903来实现。图10中的处理模块1003的功能/实现过程可以通过图9所示的随机接入装置900中的处理器901调用存储器902中存储的计算机执行指令来实现,
由于本实施例提供的随机接入装置1000可执行上述随机接入方法,因此其所能获得的技术效果可参考上述方法实施例,在此不再赘述。
在一种可能的设计方案中,图10所示出的随机接入装置1000可适用于图1-图3所示出的系统中,执行上述任一方法实施例所述的随机接入方法中第一设备的功能。
发送模块1001,用于向第二设备、或第三设备发送第一盘存命令。其中,第一盘存命令用于指示一个或多个第二设备进行随机接入。
接收模块1002,用于接收来自第二设备的随机接入请求消息。其中,随机接入请求消息用于请求接入随机接入装置1000。
发送模块1001,还用于向第二设备、或第三设备发送随机接入成功消息。其中, 随机接入成功消息用于指示第二设备已成功接入随机接入装置1000。随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
在一种可能的设计方式中,第一盘存命令还包括一个或多个组标识信息,一个组标识信息用于标识一个或多个第二设备。
在一种可能的设计方式中,一个或多个组标识信息与一个或多个应用层数据对应。
在一种可能的设计方式中,应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
在一种可能的设计方式中,第一盘存命令包括参数信息、和/或时间信息,参数信息包括数据传输速率、重复次数、和/或覆盖等级,时间信息用于指示一段时间。
在一种可能的设计方式中,在发送第一盘存命令后,且在第一时间段内未接收到随机接入请求消息的情况下,接收模块1002,还用于继续等待第三时间段,或者停止等待,发送模块1001,还用于发送下一命令。其中,第一时间段是根据编码方式、和/或覆盖等级确定的,或者第一时间段是预设置的。第三时间段是预设置的。
需要说明的是,接收模块1002和发送模块1001可以分开设置,也可以集成在一个模块中,即收发模块(图10中未示出)。本申请对于接收模块1002和发送模块1001的具体实现方式,不做具体限定。
可选地,随机接入装置1000还可以包括处理模块1003和存储模块(图10中未示出),该存储模块存储有程序或指令。当处理模块1003执行该程序或指令时,使得随机接入装置1000可以执行上述任一方法实施例所述的随机接入方法中第一设备的功能。
需要说明的是,随机接入装置1000可以是第一设备,例如接入网设备、或读写设备等,也可以是可设置于第一设备的芯片(系统)或其他部件或组件,本申请对此不做限定。
此外,随机接入装置1000的技术效果可以参考图6-图8所示的随机接入方法的技术效果,此处不再赘述。
在一种可能的设计方案中,图10所示出的随机接入装置1000可适用于图1-图3所示出的系统中,执行上述任一方法实施例所述的随机接入方法中第二设备的功能。
接收模块1002,用于接收来自第一设备、或第三设备的第一盘存命令。其中,第一盘存命令用于指示一个或多个随机接入装置1000进行随机接入。
发送模块1001,用于向第一设备发送随机接入请求消息。其中,随机接入请求消息用于请求接入第一设备。
接收模块1002,还用于接收来自第一设备、或第三设备的随机接入成功消息。其中,随机接入成功消息用于指示随机接入装置1000已成功接入第一设备。随机接入成功消息包括应用层的数据,和/或第一盘存命令包括应用层的数据。
在一种可能的设计方式中,第一盘存命令还包括一个或多个组标识信息,一个组标识信息用于标识一个或多个随机接入装置1000。
在一种可能的设计方式中,一个或多个组标识信息与一个或多个应用层数据对应。
在一种可能的设计方式中,应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
在一种可能的设计方式中,第一盘存命令包括参数信息、和/或时间信息,参数信息包括数据传输速率、重复次数、和/或覆盖等级,时间信息用于指示一段时间。
在一种可能的设计方式中,随机接入装置1000还可以包括:处理模块1003。其中,在发送随机接入请求消息、且等待第二时间段后未收到响应消息的情况下,处理模块1003,用于确定本次随机接入失败。其中,第二时间段为随机接入装置1000发送消息后等待响应消息的时间,第二时间段是根据参数信息、或时间信息确定的,或者第二时间段是预设置的。
在一种可能的设计方式中,接收模块1002,用于接收来自第三设备的增加时间信息、和/或增加时间指示信息。其中,增加时间信息用于指示第三设备与第一设备之间传输数据的所需要的时间,增加时间指示信息用于指示在确定第二时间段时是否增加第三设备与第一设备之间传输数据的所需要的时间,第二时间段为随机接入装置1000发送消息后等待响应消息的时间。
需要说明的是,接收模块1002和发送模块1001可以分开设置,也可以集成在一个模块中,即收发模块。本申请对于接收模块1002和发送模块1001的具体实现方式,不做具体限定。
可选地,随机接入装置1000还可以包括存储模块,该存储模块存储有程序或指令。当处理模块1003执行该程序或指令时,使得随机接入装置1000可以执行上述任一方法实施例所述的随机接入方法中第二设备的功能。
需要说明的是,随机接入装置1000可以是第二设备,例如终端设备,也可以是可设置于第二设备的芯片(系统)或其他部件或组件,本申请对此不做限定。
此外,随机接入装置1000的技术效果可以参考图6-图8所示的随机接入方法的技术效果,此处不再赘述。
本申请实施例提供一种通信系统。该通信系统包括:第一设备和第二设备。其中,第一设备用于执行上述方法实施例中第一设备的动作,第二设备用于执行上述方法实施例中第二设备的动作。
可选地,通信系统还可以包括:第三设备。其中,第三设备用于执行上述方法实施例中第三设备的动作,具体执行方法和过程可参照上述方法实施例,此处不再赘述。
本申请实施例提供一种芯片系统,该芯片系统包括逻辑电路和输入/输出端口。其中,逻辑电路可用于实现本申请实施例提供的随机接入方法所涉及的处理功能,输入/输出端口可用于本申请实施例提供的随机接入方法所涉及的收发功能。
示例性地,输入端口可用于实现本申请实施例提供的随机接入方法所涉及的接收功能,输出端口可用于实现本申请实施例提供的随机接入方法所涉及的发送功能。
示例性的,随机接入装置900中的处理器可用于进行,例如但不限于,基带相关处理,随机接入装置900中的收发器可用于进行,例如但不限于,射频收发。上述器件可以分别设置在彼此独立的芯片上,也可以至少部分的或者全部的设置在同一块芯片上。例如,处理器可以进一步划分为模拟基带处理器和数字基带处理器。其中,模拟基带处理器可以与收发器集成在同一块芯片上,数字基带处理器可以设置在独立的芯片上。随着集成电路技术的不断发展,可以在同一块芯片上集成的器件越来越多,例如,数字基带处理器可以与多种应用处理器(例如但不限于图形处理器,多媒体处 理器等)集成在同一块芯片之上。这样的芯片可以称为系统芯片(system on chip)。将各个器件独立设置在不同的芯片上,还是整合设置在一个或者多个芯片上,往往取决于产品设计的具体需要。本发明实施例对上述器件的具体实现形式不做限定。
在一种可能的设计中,该芯片系统还包括存储器,该存储器用于存储实现本申请实施例提供的随机接入方法所涉及功能的程序指令和数据。
该芯片系统,可以由芯片构成,也可以包含芯片和其他分立器件。
本申请实施例提供一种计算机可读存储介质,该计算机可读存储介质存储有计算机程序或指令,当计算机程序或指令在计算机上运行时,使得本申请实施例提供的随机接入方法被执行。
本申请实施例提供一种计算机程序产品,该计算机程序产品包括:计算机程序或指令,当计算机程序或指令在计算机上运行时,使得本申请实施例提供的随机接入方法被执行。
应理解,在本申请实施例中的处理器可以是中央处理单元(central processing unit,CPU),该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的随机存取存储器(random access memory,RAM)可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。
上述实施例,可以全部或部分地通过软件、硬件(如电路)、固件或其他任意组合来实现。当使用软件实现时,上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质 可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况,其中A,B可以是单数或者复数。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系,但也可能表示的是一种“和/或”的关系,具体可参考前后文进行理解。
本申请中,“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a,b,或c中的至少一项(个),可以表示:a,b,c,a-b,a-c,b-c,或a-b-c,其中a,b,c可以是单个,也可以是多个。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法 的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (29)
- 一种随机接入方法,其特征在于,包括:第一设备向第二设备、或第三设备发送第一盘存命令;其中,所述第一盘存命令用于指示一个或多个所述第二设备进行随机接入;所述第一设备接收来自所述第二设备的随机接入请求消息;其中,所述随机接入请求消息用于请求接入所述第一设备;所述第一设备向所述第二设备、或所述第三设备发送随机接入成功消息;其中,所述随机接入成功消息用于指示所述第二设备已成功接入所述第一设备;所述随机接入成功消息包括应用层的数据,和/或所述第一盘存命令包括所述应用层的数据。
- 根据权利要求1所述的随机接入方法,其特征在于,所述第一盘存命令还包括一个或多个组标识信息,一个所述组标识信息用于标识一个或多个所述第二设备。
- 根据权利要求2所述的随机接入方法,其特征在于,所述一个或多个组标识信息与所述一个或多个应用层数据对应。
- 根据权利要求1-3中任一项所述的随机接入方法,其特征在于,所述应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
- 根据权利要求1-4中任一项所述的随机接入方法,其特征在于,所述第一盘存命令包括参数信息、和/或时间信息,所述参数信息包括数据传输速率、重复次数、和/或覆盖等级,所述时间信息用于指示一段时间。
- 根据权利要求1-5中任一项所述的随机接入方法,其特征在于,所述方法还包括:在发送第一盘存命令后,且在第一时间段内未接收到所述随机接入请求消息的情况下,所述第一设备继续等待第三时间段,或者停止等待并发送下一命令;其中,所述第一时间段是所述第一设备根据编码方式、和/或覆盖等级确定的,或者所述第一时间段是预设置的;所述第三时间段是预设置的。
- 一种随机接入方法,其特征在于,包括:第二设备接收来自第一设备、或第三设备的第一盘存命令;其中,所述第一盘存命令用于指示一个或多个所述第二设备进行随机接入;所述第二设备向所述第一设备发送随机接入请求消息;其中,所述随机接入请求消息用于请求接入所述第一设备;所述第二设备接收来自所述第一设备、或所述第三设备的随机接入成功消息;其中,所述随机接入成功消息用于指示所述第二设备已成功接入所述第一设备;所述随机接入成功消息包括应用层的数据,和/或所述第一盘存命令包括所述应用层的数据。
- 根据权利要求7所述的随机接入方法,其特征在于,所述第一盘存命令还包括一个或多个组标识信息,一个所述组标识信息用于标识一个或多个所述第二设备。
- 根据权利要求8所述的随机接入方法,其特征在于,所述一个或多个组标识信息与所述一个或多个应用层数据对应。
- 根据权利要求7-9中任一项所述的随机接入方法,其特征在于,所述应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
- 根据权利要求7-10中任一项所述的随机接入方法,其特征在于,所述第一盘存命令包括参数信息、和/或时间信息,所述参数信息包括数据传输速率、重复次数、和 /或覆盖等级,所述时间信息用于指示一段时间。
- 根据权利要求11所述的随机接入方法,其特征在于,所述方法还包括:在发送所述随机接入请求消息、且等待第二时间段后未收到响应消息的情况下,所述第二设备确定本次随机接入失败;其中,所述第二时间段为所述第二设备发送消息后等待响应消息的时间,所述第二时间段是根据参数信息、或时间信息确定的,或者所述第二时间段是预设置的。
- 根据权利要求7-12中任一项所述的随机接入方法,其特征在于,所述方法还包括:所述第二设备接收来自所述第三设备的增加时间信息、和/或增加时间指示信息;其中,所述增加时间信息用于指示所述第三设备与所述第一设备之间传输数据的所需要的时间,所述增加时间指示信息用于指示在确定第二时间段时是否增加所述第三设备与所述第一设备之间传输数据的所需要的时间,所述第二时间段为所述第二设备发送消息后等待响应消息的时间。
- 一种随机接入装置,其特征在于,包括:发送模块和接收模块;其中,所述发送模块,用于向第二设备、或第三设备发送第一盘存命令;其中,所述第一盘存命令用于指示一个或多个所述第二设备进行随机接入;所述接收模块,用于接收来自所述第二设备的随机接入请求消息;其中,所述随机接入请求消息用于请求接入所述随机接入装置;所述发送模块,还用于向所述第二设备、或所述第三设备发送随机接入成功消息;其中,所述随机接入成功消息用于指示所述第二设备已成功接入所述随机接入装置;所述随机接入成功消息包括应用层的数据,和/或所述第一盘存命令包括所述应用层的数据。
- 根据权利要求14所述的随机接入装置,其特征在于,所述第一盘存命令还包括一个或多个组标识信息,一个所述组标识信息用于标识一个或多个所述第二设备。
- 根据权利要求15所述的随机接入装置,其特征在于,所述一个或多个组标识信息与所述一个或多个应用层数据对应。
- 根据权利要求14-16中任一项所述的随机接入装置,其特征在于,所述应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
- 根据权利要求14-17中任一项所述的随机接入装置,其特征在于,所述第一盘存命令包括参数信息、和/或时间信息,所述参数信息包括数据传输速率、重复次数、和/或覆盖等级,所述时间信息用于指示一段时间。
- 根据权利要求14-18中任一项所述的随机接入装置,其特征在于,在发送第一盘存命令后,且在第一时间段内未接收到所述随机接入请求消息的情况下,所述接收模块,还用于继续等待第三时间段,或者停止等待,所述发送模块,还用于发送下一命令;其中,所述第一时间段是根据编码方式、和/或覆盖等级确定的,或者所述第一时间段是预设置的;所述第三时间段是预设置的。
- 一种随机接入装置,其特征在于,包括:发送模块和接收模块;其中,所述接收模块,用于接收来自第一设备、或第三设备的第一盘存命令;其中,所述第一盘存命令用于指示一个或多个所述随机接入装置进行随机接入;所述发送模块,用于向所述第一设备发送随机接入请求消息;其中,所述随机接入请求消息用于请求接入所述第一设备;所述接收模块,还用于接收来自所述第一设备、或所述第三设备的随机接入成功消息;其中,所述随机接入成功消息用于指示所述随机接入装置已成功接入所述第一设备;所述随机接入成功消息包括应用层的数据,和/或所述第一盘存命令包括所述应用层的数据。
- 根据权利要求20所述的随机接入装置,其特征在于,所述第一盘存命令还包括一个或多个组标识信息,一个所述组标识信息用于标识一个或多个所述随机接入装置。
- 根据权利要求21所述的随机接入装置,其特征在于,所述一个或多个组标识信息与所述一个或多个应用层数据对应。
- 根据权利要求20-22中任一项所述的随机接入装置,其特征在于,所述应用层的数据承载在无线资源控制RRC消息、或媒体接入控制MAC数据包中。
- 根据权利要求20-23中任一项所述的随机接入装置,其特征在于,所述第一盘存命令包括参数信息、和/或时间信息,所述参数信息包括数据传输速率、重复次数、和/或覆盖等级,所述时间信息用于指示一段时间。
- 根据权利要求24所述的随机接入装置,其特征在于,所述装置还包括:处理模块;其中,在发送所述随机接入请求消息、且等待第二时间段后未收到响应消息的情况下,所述处理模块,用于确定本次随机接入失败;其中,所述第二时间段为所述随机接入装置发送消息后等待响应消息的时间,所述第二时间段是根据参数信息、或时间信息确定的,或者所述第二时间段是预设置的。
- 根据权利要求20-25中任一项所述的随机接入装置,其特征在于,所述接收模块,用于接收来自所述第三设备的增加时间信息、和/或增加时间指示信息;其中,所述增加时间信息用于指示所述第三设备与所述第一设备之间传输数据的所需要的时间,所述增加时间指示信息用于指示在确定第二时间段时是否增加所述第三设备与所述第一设备之间传输数据的所需要的时间,所述第二时间段为所述随机接入装置发送消息后等待响应消息的时间。
- 一种随机接入装置,其特征在于,所述随机接入装置包括:处理器;所述处理器,用于执行如权利要求1-13中任一项所述的随机接入方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储有计算机程序或指令,当所述计算机程序或指令在计算机上运行时,使得如权利要求1-13中任一项所述的随机接入方法被执行。
- 一种计算机程序产品,其特征在于,所述计算机程序产品包括:计算机程序或指令,当所述计算机程序或指令在计算机上运行时,使得如权利要求1-13中任一项所述的随机接入方法被执行。
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