WO2018024078A1 - 上行数据传输方法及装置 - Google Patents

上行数据传输方法及装置 Download PDF

Info

Publication number
WO2018024078A1
WO2018024078A1 PCT/CN2017/092152 CN2017092152W WO2018024078A1 WO 2018024078 A1 WO2018024078 A1 WO 2018024078A1 CN 2017092152 W CN2017092152 W CN 2017092152W WO 2018024078 A1 WO2018024078 A1 WO 2018024078A1
Authority
WO
WIPO (PCT)
Prior art keywords
message
value
random number
generated
random access
Prior art date
Application number
PCT/CN2017/092152
Other languages
English (en)
French (fr)
Inventor
叶能
李祥明
李安新
陈晓航
赵群
蒋惠玲
Original Assignee
株式会社Ntt都科摩
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ntt都科摩 filed Critical 株式会社Ntt都科摩
Priority to JP2019506195A priority Critical patent/JP6899426B2/ja
Priority to CN201780043832.3A priority patent/CN109479249B/zh
Priority to US16/323,207 priority patent/US10764856B2/en
Priority to EP17836260.4A priority patent/EP3496474A4/en
Publication of WO2018024078A1 publication Critical patent/WO2018024078A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/20—Hop count for routing purposes, e.g. TTL
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to a wireless communication system, and more particularly to an uplink data transmission method and corresponding apparatus in a wireless communication system.
  • 5G In the rapid development of the fourth generation of mobile communication (4G), the fifth generation of mobile communication (5G) standards have also been put on the agenda.
  • ITU International Telecommunication Union
  • 5G will have three typical application scenarios: First, enhanced mobile broadband (eMBB, Enhanced Mobile Broadband).
  • eMBB enhanced mobile broadband
  • 20Gbps which can support the development of large-bandwidth applications such as virtual reality, live video and sharing, and cloud access anytime and anywhere
  • MTC Massive Machine Type Communication
  • the number of connections reaches 1 million / square kilometers; the third is Ultra Reliable and Low Latency Communication (URLLC), which means that the delay of 5G networks can reach 1 millisecond, which promotes such as intelligent manufacturing, remote Development of low-latency services such as mechanical control, assisted driving and autonomous driving.
  • URLLC Ultra Reliable and Low Latency Communication
  • the number of connections between people and objects supported by the 5G network should reach 1 million/square kilometers.
  • the amount of uplink traffic in the 5G network will be greatly increased.
  • the signaling overhead when the base station performs uplink scheduling in the 5G network will also increase greatly. Therefore, in the 5G network, how to carry out uplink data transmission is one of the current research hotspots.
  • An embodiment of the present application provides an uplink data transmission method.
  • the method includes:
  • An embodiment of the present application also provides a User Equipment (UE).
  • the UE includes:
  • a first random number generating module configured to generate a first random number
  • a timing advance TA acquisition module configured to determine whether to perform a random access procedure according to the first random number; if performing a random access procedure, obtaining a TA value from the eNB through a random access procedure; if not performing a random process, listening to the other The TA message broadcast by the UE obtains the TA value therefrom;
  • a data transmission module configured to perform uplink data transmission according to the obtained TA value
  • a TA message generating module configured to generate a TA message according to the acquired TA value
  • a broadcast module for broadcasting generated TA messages for broadcasting generated TA messages.
  • the embodiment of the present application further provides a non-transitory computer readable storage medium storing machine readable instructions, the machine readable instructions being executable by a processor to perform the following operations:
  • the uplink data transmission method in the embodiment of the present application does not require all UEs to perform a random access procedure.
  • some UEs obtain a TA value through a random access procedure, and some UEs obtain a TA value from TA messages broadcast by other UEs. Since not all UEs perform a random access procedure, access delay, signaling overhead, and power consumption due to collision of the UE random access procedure can be greatly reduced. Even in the 5G large connection IoT application scenario, good uplink access performance can be obtained.
  • FIG. 1 shows a flow of an uplink data transmission method according to an embodiment of the present application
  • FIG. 2 shows the structure of a TA message according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of an internal structure of a UE according to an embodiment of the present application.
  • the uplink traffic of the 5G network will be greatly increased.
  • the signaling overhead when the base station performs uplink scheduling will also be greatly increased.
  • how to carry out uplink data transmission in 5G networks has become a hot research technology.
  • a base station In a Long Term Evolution (LTE) system, a base station (eNB) needs to perform the following signaling interaction when establishing a connection with a user terminal (UE).
  • eNB base station
  • UE user terminal
  • the UE initiates a random access procedure through a random access channel (RACH) to the eNB.
  • RACH random access channel
  • the eNB may calculate the transmission delay of the UE signal, that is, the distance of the UE from the UE may be known, so that the UE determines whether the UE transmits the data signal according to the transmission delay of the UE signal. Time advance (TA, Timing Advance). Then, the eNB notifies the UE of the determined TA value through the Access Grant Channel (AGCH).
  • TA Timing Advance
  • the TA value can be advanced to implement uplink synchronization of the transmission signals of different UEs at the eNB.
  • the UE can obtain the foregoing timing advance TA only through a random access procedure. Then, if the 5G large connection IoT application scenario still uses this method, as the number of users increases, if all users perform the random access process, the collision of random access processes between different users will It occurs frequently, which leads to huge access delay and power consumption of the UE, which imposes a huge burden on the 5G network.
  • an embodiment of the present application proposes an uplink data transmission method, in which all UEs are not required to perform a random access procedure, and some UEs can obtain a TA value from other UEs, thereby The uplink synchronization of the transmission signals of different UEs at the eNB can still be implemented, thereby greatly reducing collisions that may occur in the random access process of the UE, reducing the delay and power consumption of the random access procedure, and particularly applicable to the large connectivity of the 5G. Networked application scenarios.
  • FIG. 1 shows a flow of an uplink data transmission method according to an embodiment of the present application.
  • the uplink data transmission method described in this embodiment of the present application includes the following steps:
  • Step 101 Generate a first random number before performing random access.
  • a random number generator is maintained inside the UE, therefore, In this step, the UE generates a first random number through the random number generator.
  • Step 102 Determine whether to initiate a random access procedure according to the generated first random number. If the random access procedure is initiated, step 103 is performed; if the random access procedure is not initiated, step 104 is performed.
  • the generated first random number may be compared with the first threshold stored by itself, and it is determined whether the generated first random number is smaller than a first threshold stored by itself, if the generated first random number If the first threshold is smaller than the first threshold, the random access procedure may be initiated. If the generated first random number is greater than or equal to the first threshold stored by itself, the random access procedure is not initiated.
  • determining conditions for performing the random access procedure that the first random number is smaller than the first threshold are only an example.
  • other determining conditions for performing random access may also be configured, for example, The random access process may be performed under the condition that the first random number is greater than the first threshold. The setting of these conditions is not intended to limit the scope of protection of the present application.
  • the foregoing first threshold may be pre-determined and stored in the UE; in addition, the foregoing first threshold may also be sent by the eNB to each UE, for example, broadcast to each UE.
  • different first thresholds may be configured for different UEs to give different types of UE different probability of performing a random access procedure, and implementing refined random access control.
  • a UE eg, a head device of an MTC cluster
  • a higher first threshold thereby increasing the probability that it may initiate a random access procedure
  • a lower first threshold can be configured, thereby reducing the probability that it can initiate a random access procedure, and the like.
  • Step 103 Obtain a TA value from the eNB through a random access procedure, and then perform step 105.
  • Step 104 Listen to the TA message broadcast by other UEs, obtain a TA value therefrom, and then perform step 105.
  • the structure of the foregoing TA message may be as shown in FIG. 2, including: a TA field 201 for carrying a TA value and a hop field 202 for carrying a TA hop count.
  • the above TA message may also include a cell identity field 203 for carrying a cell identity.
  • the TA hop count represents the UE from the eNB to the receiving the TA message, and the TA value carried by the TA message passes through several UEs.
  • the TA hop count is mainly used to control the accuracy of the TA, and avoids that the TA received by the UE after multiple times of forwarding is not accurate and cannot meet the system requirements for delay.
  • the UE may set a time window T. If a TA message from another UE is received in the time window T, the TA value may be obtained from the received TA message; otherwise, return to step 101 to restart the judgment. Whether a random access procedure can be initiated.
  • the setting of the time window T is also considered in consideration of the system delay, and the UE is prevented from receiving the TA value too late.
  • the TA value is directly obtained from the TA field 201 of the TA message; if more than received For one TA message, the number of TA hops carried by each TA message hop field 202 is checked, and the TA message with the least number of TA hops is determined therefrom. If there is only one TA message with the least number of TA hops, the TA value is directly obtained from the TA field 201 of the TA message; if there are multiple TA messages with the least number of TA hops, it is further determined that each TA message cell identifier field 203 is carried.
  • the TA values carried in the TA field 201 of each TA message are linearly combined, and then the TA value of the TA value is determined according to the combined TA value; if not, the cell with the highest received power strength is found. Or the TA message corresponding to the serving cell, and determine its own TA value according to the TA message from the cell with the highest received power strength or its own serving cell.
  • Step 105 Perform uplink data transmission according to the obtained TA value.
  • Step 106 Determine whether the uplink data transmission is successful.
  • step 107 is performed;
  • step 101 If the uplink data transmission is unsuccessful, return to step 101 to restart determining whether the random access procedure can be initiated.
  • the UE determines whether the uplink data transmission is successful through an acknowledgment message returned by the eNB, such as an ACK/NACK message. Moreover, if an uplink data transmission is successful within the number of retransmissions allowed by the system, it can still be determined that the uplink data transmission is successful. If the maximum number of retransmissions of the system is not successfully transmitted, it is determined that the uplink data transmission is unsuccessful. At this time, the process returns to step 101 to restart the determination of whether the random access procedure can be initiated.
  • an acknowledgment message returned by the eNB
  • Step 107 Generate a second random number.
  • the UE In this step, the UE generates the second random number by using a random number generator maintained by itself.
  • Step 108 Determine whether it can be used as a TA broadcast device according to the generated second random number. If yes, execute step 109; otherwise, end the flow and enter the sleep mode.
  • the generated second random number may be compared with a second threshold stored by itself to determine whether the generated second random number is smaller than a second threshold stored by itself, if the generated second random number If it is smaller than the second threshold stored by itself, it is determined that it can be used as a TA broadcast device; if the generated second random number is greater than or equal to the second threshold stored by itself, it is determined that it cannot be a TA broadcast device.
  • the determination condition of the TA broadcast device that the second random number is smaller than the second threshold is only an example.
  • other determination conditions for the TA broadcast device may be configured.
  • the UE may be set as the TA broadcast device if the second random number is greater than the second threshold, and vice versa. Again, the setting of these conditions is not intended to limit the scope of protection of the present application.
  • the foregoing second threshold may be pre-determined and stored in the UE; the second threshold may also be sent by the eNB to each UE, for example, broadcast to each UE.
  • different second thresholds may also be configured for different UEs, for example, UEs that are capable and willing to perform TA broadcast (ie, UEs capable and willing to be called TA broadcast devices)
  • the higher first threshold can be configured to increase the probability that it will be broadcasted as a TA broadcast device for TA broadcasts; and for a UE that is not capable of transmitting broadcast messages as a TA broadcast device, it can be configured as 0, thereby preventing it from becoming a TA broadcast device.
  • Step 109 Generate a TA message according to the acquired TA value.
  • the UE may generate the TA message shown in FIG. 2 according to the acquired TA value, including: adding the acquired TA value to the TA field 201 and generating the TA hop count to the hop count field 202.
  • the UE may also add the identity of the cell in which it is located to the cell identity field 203.
  • the specific method for the UE to generate the TA hops includes: if the acquired TA value is directly obtained from the eNB through the random access procedure, the generated TA hop count is 0; if the acquired TA value is broadcasted from other UEs, the TA message
  • the obtained TA hop count is the number of TA hops carried by the hop count field 202 in the received TA message plus one. That is, 1 is added to the TA hop value carried by the received TA message. This indicates that the TA value increases the forwarding of the UE again.
  • Step 110 Broadcast the generated TA message.
  • the UE can broadcast the generated TA message through LTE sideband transmission (Sidelink).
  • the generated TA message can be carried by a physical layer shared channel (PSSCH) channel.
  • PSSCH physical layer shared channel
  • the UE may broadcast the generated TA message multiple times, for example, setting the broadcast maximum number B or the length Tb of the broadcast time window in the UE, in this case, the UE
  • the above step 110B may be repeatedly performed or the above step 110 may be repeatedly executed in the time window Tb, and then the above flow is ended to enter the sleep mode.
  • the power of the UE broadcast TA message is limited by the maximum broadcast power of the UE and the broadcast time window length Tb.
  • a further determining step may be further added:
  • Step 109A If the TA value is a TA message from another UE, and the number of TA hops carried by the TA message hop field 202 is greater than or equal to a predetermined third threshold, the process ends, and the sleep mode is entered without generating and Broadcast the TA message; otherwise, proceed to step 109.
  • the foregoing third threshold may be pre-determined and stored in the UE, or may be sent by the eNB to the UE, for example, broadcast to the UE.
  • the setting of the foregoing third threshold can comprehensively consider the accuracy of the TA value and the number of TA messages broadcasted in the entire cell.
  • the access delay of the UE can be reduced while increasing the access probability of the UE. For example, if the power of the UE broadcast TA message is P, the distance d from the transmitting end of the TA message to the receiving end that can receive the TA message can be obtained, and the delay Td of the propagated signal at this distance d can be determined. Then the product of Td and the third threshold described above is less than the maximum upstream delay that can be tolerated.
  • the uplink data transmission method in the embodiment of the present application does not require all UEs to perform a random access procedure.
  • some UEs obtain a TA value through a random access procedure, and some UEs obtain a TA value from TA messages broadcast by other UEs. Since not all UEs perform a random access procedure, access delay, signaling overhead, and power consumption due to collision of the UE random access procedure can be greatly reduced. Even in the 5G large connection IoT application scenario, good uplink access performance can be obtained.
  • the eNB may also Whether the UE performs a random access procedure for direct designation, for example, the identity of the UE that can perform the random access procedure, and the like.
  • the UE performs a random access procedure for direct designation, for example, the identity of the UE that can perform the random access procedure, and the like.
  • the UE performs a random access procedure for direct designation, for example, the identity of the UE that can perform the random access procedure, and the like.
  • the UE performs a random access procedure for direct designation, for example, the identity of the UE that can perform the random access procedure, and the like.
  • the UE performs a random access procedure for direct designation, for example, the identity of the UE that can perform the random access procedure, and the like.
  • the TA value may be obtained from TA messages broadcast by other UEs (step 104).
  • the system may preset that some UEs may perform the random access procedure without performing the above process of generating the first random number and determining whether random access can be performed according to the first random number. For example, for a head user system in an MTC cluster, a user who can perform random access can be directly preset.
  • the UE may not perform the step of generating the second random number and determining whether it is the TA broadcast device according to the second random number (steps 107 and 108 are not performed). And directly performing the step of generating the TA message and broadcasting the generated TA message (steps 109 and 110). In this way, all UEs that successfully transmit uplink data are set to broadcast TA messages to other UEs.
  • the previous solution has better flexibility and controllability than the above simplified solution, which can avoid the frequency congestion of LTE Sidelink and excessive power consumption, and is also more suitable for a user-intensive scenario requiring TA. . In such a scenario where the user who needs to obtain the TA is dense, in fact, many UEs are not required to be TA broadcast devices, and most UEs can obtain TA values by broadcasting a small number of UEs.
  • an embodiment of the present application further provides a UE that implements the foregoing method.
  • FIG. 3 shows the internal structure of the UE 300 according to the embodiment of the present application.
  • the UE 300 includes: a processor 301, a memory 302, a sending device 303, and a receiving device 304.
  • the processor 301 is configured to execute the following instruction modules stored in 302:
  • the first random number generating module 3021 is configured to generate a first random number
  • a TA obtaining module 3022 configured to determine, according to the first random number, whether to perform a random access procedure; if performing a random access procedure, obtaining, by the receiving device 304, a TA value from the eNB through a random access procedure; if not performing a random process, Obtaining a TA value from the TA message broadcasted by other UEs by the receiving device 304;
  • the data transmission module 3023 is configured to perform uplink data transmission by the sending device 303 according to the obtained TA value.
  • the second random number generating module 3024 is configured to generate a second random number.
  • the TA message generating module 3025 is configured to determine, according to the second random number, whether it is a TA broadcast device, and if it is a TA broadcast device, generate a TA message according to the acquired TA value.
  • the broadcast module 3026 is configured to broadcast the generated TA message by using the sending device 303.
  • the foregoing UE may further include: a first storage module for storing the first threshold; in this case, the TA obtaining module 3022 compares the generated first random number with a first threshold stored by the storage module, and determines Whether the generated first random number is smaller than the first threshold stored by itself, and if the generated first random number is smaller than the first threshold stored by itself, the random access procedure is initiated; if the generated first random number is greater than or equal to The first threshold of its own storage does not initiate a random access procedure.
  • the foregoing UE may further include: a second storage module for storing the second threshold; in this case, the TA message generating module 3025 compares the generated second random number with a second threshold stored by itself, and determines Whether the generated second random number is smaller than the second threshold stored by itself, and if the generated second random number is smaller than the second threshold stored by itself, it is determined that it is a TA broadcast device.
  • a second storage module for storing the second threshold in this case, the TA message generating module 3025 compares the generated second random number with a second threshold stored by itself, and determines Whether the generated second random number is smaller than the second threshold stored by itself, and if the generated second random number is smaller than the second threshold stored by itself, it is determined that it is a TA broadcast device.
  • the foregoing TA message may include: a TA field, a hop field, and a cell identifier.
  • the TA message generating module 3025 adds the acquired TA value to the TA field of the TA message; generates a hop count field of the TA message added to the TA message; and adds the identity of the cell in which the cell is located to the cell identity field of the TA message.
  • the above broadcast module 3026 can repeatedly broadcast the generated TA message within the set broadcast time window length.
  • the TA message generating module 3025 may further determine that if the TA value is a TA message from another UE, and the number of TA hops carried by the TA message is greater than or equal to a predetermined third threshold, End without generating a TA message.
  • the UE may not include the second random number generation module 3024 described above.
  • the TA message generating module 3025 does not need to make any determination, and can directly generate a TA message according to the acquired TA value.
  • the UEs in the embodiments of the present invention do not necessarily perform a random access procedure, except that the TA value is obtained from the eNB through a random access procedure, and may also be obtained from TA messages broadcast by other UEs.
  • the TA value thereby greatly reducing access delay, signaling overhead, and power consumption due to collision of random access procedures between UEs. Therefore, even in the application scenario of the 5G large connection Internet of Things, good uplink access performance can be obtained.
  • the hardware structure of the UE 300 may include one or more components shown in the figure, or may not include some components.
  • processor 301 is only illustrated as one, but may be multiple processors.
  • the processing may be performed by one processor, or may be performed by one or more processors simultaneously, sequentially, or by other methods.
  • the processor 301 can be installed by more than one chip.
  • the memory 302 is a computer readable recording medium, and may be, for example, a read only memory (ROM), a programmable read only memory (EPROM, Erasable). At least one of Programmable ROM, Electrically Programmable Read Only Memory (EEPROM), Random Access Memory (RAM), and other suitable storage medium.
  • the memories 602 and 702 may also be referred to as registers, caches, main memories (primary storage devices), and the like.
  • the memories 602 and 702 can respectively store executable programs (program codes), software modules, and the like for implementing the uplink data transmission method according to the embodiment of the present application.
  • the UE 300 may include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD, Programmable Logic Device), and a field programmable gate.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA Field Programmable Gate Array
  • the processor 301 can be installed by at least one of these hardwares.
  • the channel and/or symbol can also be a signal (signaling).
  • the signal can also be a message.
  • the information, parameters, and the like described in the present specification may be expressed by absolute values, may be represented by relative values with predetermined values, or may be represented by other corresponding information.
  • wireless resources can be indicated by a specified index.
  • the formula or the like using these parameters may be different from those explicitly disclosed in the present specification.
  • the information, signals, and the like described in this specification can be expressed using any of a variety of different techniques.
  • data, commands, instructions, information, signals, bits, symbols, chips, etc. which may be mentioned in all of the above description, may pass voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of them. Combined to represent.
  • information, signals, and the like may be output from the upper layer to the lower layer, and/or from the lower layer to the upper layer.
  • Information, signals, etc. can be input or output via a plurality of network nodes.
  • Input or output information, signals, etc. can be stored in a specific place (such as memory), also It can be managed through a management table. Information or signals input or output may be overwritten, updated or supplemented. The output information, signals, etc. can be deleted. The input information, signals, etc. can be sent to other devices.
  • the notification of the information is not limited to the mode/embodiment described in the specification, and may be performed by other methods.
  • the notification of the information may be through physical layer signaling (for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and upper layer signaling (for example, radio resource control).
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Media Access Control
  • the physical layer signaling may be referred to as L1/L2 (Layer 1/Layer 2) control information (L1/L2 control signal), L1 control information (L1 control signal), and the like.
  • the RRC signaling may also be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.
  • the MAC signaling can be notified, for example, by a MAC Control Unit (MAC CE).
  • MAC CE MAC Control Unit
  • the notification of the predetermined information is not limited to being explicitly performed, and may be performed implicitly (for example, by not notifying the predetermined information or by notifying the other information).
  • the determination can be performed by a value (0 or 1) represented by 1 bit, or by a true or false value (boolean value) represented by true (true) or false (false), and can also be compared by numerical values ( For example, comparison with a predetermined value).
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, should be interpreted broadly to mean commands, command sets, code, generations. Code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, steps, functions, and the like.
  • software, commands, information, and the like may be transmitted or received via a transmission medium.
  • a transmission medium For example, when using wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) from a website, server, or other remote source
  • wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • base station (BS, Base Station)", “radio base station”, “eNB”, “gNB”, “cell”, “sector”, “cell group”, “carrier”, and “component carrier”
  • BS Base Station
  • radio base station eNB
  • gNB gNodeB
  • cell a cell
  • cell group a carrier
  • component carrier a component carrier
  • the base station is sometimes referred to by a fixed station, a NodeB, an eNodeB (eNB), an access point, a transmission point, a reception point, a femto cell, a small cell, and the like.
  • a base station can accommodate one or more (eg, three) cells (also referred to as sectors). When the base station accommodates multiple cells, the entire coverage area of the base station can be divided into a plurality of smaller areas, and each smaller area can also pass through the base station subsystem (for example, a small indoor base station (RFH, remote head (RRH), Remote Radio Head))) to provide communication services.
  • the term "cell” or “sector” refers to a portion or the entirety of the coverage area of a base station and/or base station subsystem that performs communication services in the coverage.
  • the base station is sometimes referred to by a fixed station, a NodeB, an eNodeB (eNB), an access point, a transmission point, a reception point, a femto cell, a small cell, and the like.
  • eNB eNodeB
  • Mobile stations are sometimes also used by those skilled in the art as subscriber stations, mobile units, subscriber units, Wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or several Other appropriate terms are used to refer to it.
  • the wireless base station in this specification can also be replaced with a user terminal.
  • each mode/embodiment of the present invention can be applied to a configuration in which communication between a radio base station and a user terminal is replaced with communication between a plurality of user-to-device (D2D) devices.
  • D2D user-to-device
  • the function of the above-described eNB can be regarded as a function of the UE 300.
  • words such as "upstream” and "downstream” can also be replaced with "side”.
  • the uplink channel can also be replaced with a side channel.
  • the user terminal in this specification can also be replaced with a wireless base station.
  • the functions of the UE 300 described above can be regarded as functions of the eNB.
  • the node may be considered, for example, but not limited to, a Mobility Management Entity (MME), a Serving-Gateway (S-GW, etc.), or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • LTE-Advanced Long-term evolution
  • LTE-B Long-term evolution
  • SUPER 3G Super 3rd generation mobile communication system
  • IMT-Advanced 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • FAA Future Radio Access
  • New-RAT Radio Access Technology
  • NR New Radio
  • NX new radio access
  • FX future generation radio access
  • GSM registered trademark
  • Global System for Mobile communications code division multiple access Access 2000
  • CDMA2000 Code Division Multiple access Access 2000
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • determination used in the present specification sometimes includes various actions. For example, regarding “judgment (determination)", calculation, calculation, processing, deriving, investigating, looking up (eg, table, database, or other) may be performed. Search in the data structure, ascertaining, etc. are considered to be “judgment (determination)”. Further, regarding “judgment (determination)”, reception (for example, receiving information), transmission (for example, transmission of information), input (input), output (output), and access (for example) may also be performed (for example, Accessing data in memory, etc. is considered to be “judgment (determination)”.
  • judgment (determination) it is also possible to solve, select, select, choose, establish (establishing), comparison (comparing), etc. are considered to be “judgment (determination)”. That is to say, regarding “judgment (determination)", several actions can be regarded as performing "judgment (determination)”.
  • connection means any direct or indirect connection or combination between two or more units, This includes the case where there is one or more intermediate units between two units that are “connected” or “coupled” to each other.
  • the combination or connection between the units may be physical, logical, or a combination of the two.
  • connection can also be replaced with "access”.
  • two units may be considered to be electrically connected by using one or more wires, cables, and/or printed, and as a non-limiting and non-exhaustive example by using a radio frequency region.
  • the electromagnetic energy of the wavelength of the region, the microwave region, and/or the light is "connected” or "bonded” to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请提供了一种上行数据传输方法和执行该方法的用户终端(UE)。本申请的方法包括：A、生成第一随机数；B、根据生成的第一随机数判断是否发起随机接入过程，如果发起随机接入过程，则通过随机接入过程从基站获得时间提前量(TA)值；如果不发起随机接入过程，则监听其他UE广播的TA消息从中获得TA值；C、根据获得的TA值进行上行数据传输；D、若上行数据传输成功，则继续执行E；如果上行数据传输不成功，则返回A；E、根据获取的TA值生成TA消息，并广播所生成的TA消息。通过本申请的方法可以减少时延以及功率消耗。

Description

上行数据传输方法及装置 技术领域
本申请涉及无线通信系统，特别涉及无线通信系统中的上行数据传输方法及相应装置。
发明背景
在第四代移动通信(4G)飞速发展的今天，第五代移动通信(5G)标准制定也提上了日程。根据国际电信联盟(ITU)的定义，5G将拥有三大类典型的应用场景：一是增强型的移动宽带(eMBB，Enhanced Mobile Broadband)，在这一场景下智能终端用户上网峰值速率可以达到10Gbps甚至20Gbps，从而能够支撑虚拟现实、视频直播和分享以及随时随地云接入等大带宽应用的发展；二是大连接物联网(mMTC，Massive Machine Type Communication)，这要求5G网络支撑的人和物的联接数量达到100万个/平方公里；三是低时延超可靠通信(uRLLC，Ultra Reliable and Low Latency Communication)，这意味着5G网络的时延可达1毫秒，从而推动诸如智能制造、远程机械控制、辅助驾驶以及自动驾驶等低时延业务的发展。
如前所述，在上述大连接物联网的应用场景下，5G网络支撑的人和物的联接数量要达到100万个/平方公里。在如此海量的终端需要接入的情况下，5G网络中上行的业务量将大大增加。相对应地，5G网络中基站进行上行调度时的信令开销也将大大增加。因此，在5G网络中，如何进行上行数据传输，是目前的研究热点之一。
发明内容
本申请的实施例给出了一种上行数据传输方法。该方法包括：
A、生成第一随机数；
B、根据生成的第一随机数判断是否发起随机接入过程，如果发起随机接入过程，则通过随机接入过程从基站获得时间提前量TA值；如果不发起随机接入过程，则监听其他用户终端UE广播的TA消息从中获得TA值；
C、根据获得的TA值进行上行数据传输；
D、若上行数据传输成功，则继续执行E；如果上行数据传输不成功，则返回A；
E、根据获取的TA值生成TA消息，并广播所生成的TA消息。
本申请的实施例还给出了一种用户设备(UE)。该UE包括：
第一随机数生成模块，用于生成第一随机数；
时间提前量TA获取模块，用于根据第一随机数确定是否执行随机接入过程；如果执行随机接入过程，则通过随机接入过程从eNB获得TA值；如果不执行随机过程，则监听其他UE广播的TA消息从中获得TA值；
数据传输模块，用于根据获得的TA值进行上行数据传输；
TA消息生成模块，用于根据获取的TA值生成TA消息；以及
广播模块，用于广播生成的TA消息。
本申请实施例还提供了一种非易失性计算机可读存储介质，所述存储介质中存储有机器可读指令，所述机器可读指令可以由处理器执行以完成以下操作：
A、生成第一随机数；
B、根据生成的第一随机数判断是否发起随机接入过程，如果发起随机接入过程，则通过随机接入过程从基站获得时间提前量TA值；如果不发起随机接入过程，则监听其他用户终端UE广播的TA消息从中 获得TA值；
C、根据获得的TA值进行上行数据传输；
D、若上行数据传输成功，则继续执行E；如果上行数据传输不成功，则返回A；
E、根据获取的TA值生成TA消息，并广播所生成的TA消息。
通过上述方案可以看出，本申请实施例给出的上行数据传输方法无需所有的UE都执行随机接入过程。在该方法中，部分UE通过随机接入过程获得TA值，而部分UE从其他UE广播的TA消息中获得TA值。由于不是所有的UE都执行随机接入过程，因而可以大大减少由于UE随机接入过程的碰撞而带来的接入时延，信令开销以及功率消耗。即使是在5G的大连接物联网的应用场景下也可以获得很好的上行接入性能。
附图简要说明
图1显示了本申请实施例所述的上行数据传输方法流程；
图2显示了本申请实施例所述的TA消息的结构；以及
图3为本申请实施例所述的UE的内部结构示意图。
具体实施方式
如前所述，在大连接物联网的应用场景下，5G网络的上行业务量将大大增加，相对应地，基站进行上行调度时的信令开销也将大大增加。为此，如何在5G网络中进行上行数据传输，已成为目前研究的热点技术。
在长期演进(LTE)系统中，基站(eNB)在与用户终端(UE)建立连接时需要进行如下的信令交互。
首先，UE通过随机接入信道(RACH)发起随机接入过程，向eNB 发送随机接入请求。
随后，eNB在解码UE的随机接入请求时，可以计算出该UE信号的传输时延，即可以知道该UE距离自身的距离，从而根据该UE信号的传输时延确定UE在传输数据信号时的时间提前量(TA，Timing Advance)。然后，eNB通过接入准许信道(AGCH)将确定的TA值通知UE。
此后，UE在业务信道(TCH)上传输信号时即可提前TA值，以实现不同UE的传输信号在eNB处的上行同步。
通过上述随机接入过程可以看出，在传统的LTE系统中，UE只有通过随机接入过程才能得到上述时间提前量TA。那么，如果在5G的大连接物联网的应用场景下仍然沿用这样的方式，随着用户数的激增，如果所有用户都执行随机接入过程，那么不同用户之间随机接入过程的碰撞将会频繁发生，从而会导致巨大的接入时延和UE的功率消耗，从而给5G网络带来巨大的负担。
为了解决这样的问题，本申请的实施例提出了一种上行数据传输方法，在这种方法中，不需要所有的UE都执行随机接入过程，部分UE可以从其他UE处获得TA值，从而仍然可以实现不同UE的传输信号在eNB处的上行同步，因而可以大大减少UE在随机接入过程可能发生的碰撞，减小随机接入过程的时延以及功率消耗，特别适用5G的大连接物联网的应用场景。
具体而言，图1显示了本申请实施例所述的上行数据传输方法的流程。
如图1所示，本申请实施例所述的上行数据传输方法包括如下步骤：
步骤101，在进行随机接入之前，生成第一随机数。
在本申请的实施例中，UE的内部会维护一个随机数生成器，因此， 在本步骤中，UE会通过该随机数生成器生成第一随机数。
步骤102，根据所生成的第一随机数判断是否发起随机接入过程，如果发起随机接入过程，则执行步骤103；如果不发起随机接入过程，则执行步骤104。
在本步骤中，具体可以将所生成的第一随机数与自身存储的第一门限进行比较，判断所生成的第一随机数是否小于自身存储的第一门限，如果所生成的第一随机数小于自身存储的第一门限，则可以发起随机接入过程；而如果所生成的第一随机数大于或等于自身存储的第一门限，则不发起随机接入过程。
需要说明的是，上述满足第一随机数小于第一门限的进行随机接入过程的判断条件只是一个举例，在本申请的实施例中，还可以配置其他的进行随机接入的判断条件，例如，还可以设置在第一随机数大于第一门限的条件下进行随机接入过程。这些条件的设置并不用于限制本申请的保护范围。
在本申请的实施例中，上述第一门限可以是预先确定并存储在UE中的；此外，上述第一门限也可以是由eNB发送给各个UE的，例如广播给各个UE的。
而且，在本申请的实施例中，针对不同的UE还可以配置不同的第一门限，以给予不同类型UE不同的进行随机接入过程的概率，实现精细化的随机接入控制。例如，对于有能力做为中继节点发送广播消息且有意愿完成消息广播的UE(例如MTC簇的头设备)可以配置较高的第一门限，从而增加其可以发起随机接入过程的概率；而对于没有能力作为中继节点发送广播消息的UE则可以配置较低的第一门限，从而降低其可以发起随机接入过程的概率等等。
步骤103，通过随机接入过程从eNB获得TA值，然后执行步骤105。
步骤104，监听其他UE广播的TA消息，从中获得TA值，然后执行步骤105。
在本申请的实施例中，上述TA消息的结构可以如图2所示，包括：用于承载TA值的TA字段201以及用于承载TA跳数的跳数字段202。上述TA消息还可以包括用于承载小区标识的小区标识字段203。其中，上述TA跳数代表从eNB到接收该TA消息的UE，该TA消息承载的TA值共经过了几个UE。TA跳数主要用于控制TA的精确度，避免经过过多次的转发UE接收到的TA已经不精确且不能满足系统对于时延的要求了。
在本步骤中，UE可以设置一个时间窗T，如果在时间窗T内接收到来自其他UE的TA消息，则可以从接收的TA消息中获得TA值；否则，则返回步骤101，重新开始判断是否可以发起随机接入过程。时间窗T的设置也是考虑系统时延的要求，避免UE过晚地接收到TA值。
具体而言，如果在时间窗T内，UE接收到来自其他UE的TA消息，且只接收到1个TA消息，则直接从该TA消息的TA字段201中获取TA值；如果接收到多于1个TA消息，则检查各个TA消息跳数字段202承载的TA跳数，从中确定TA跳数最少的TA消息。如果TA跳数最少的TA消息只有1个，则直接从该TA消息的TA字段201中获取TA值；如果TA跳数最少的TA消息有多个，则进一步判断各TA消息小区标识字段203承载的小区标识是否相同，如果相同，则对各个TA消息TA字段201承载的TA值进行线性合并，然后根据合并后的TA值确定自身的TA值；如果不同，则从中找到接收功率强度最大的小区或自己的服务小区对应的TA消息，并根据来自接收功率强度最大的小区或自己的服务小区的TA消息确定自身的TA值。
步骤105，根据获得的TA值进行上行数据传输。
步骤106，判断上行数据传输是否成功，
如果上行数据传输成功，则执行步骤107；
如果上行数据传输不成功，则返回步骤101，重新开始判断是否可以发起随机接入过程。
在本步骤中，UE是通过eNB返回的确认消息，例如ACK/NACK消息来确定上行数据传输是否成功的。而且，如果在系统允许的重传次数之内，某次上行数据传输成功，则依然可确定上行数据传输是成功的。而如果达到系统设置的重传最大次数仍没有传输成功，则确定上行数据传输不成功，此时将返回步骤101，重新开始判断是否可以发起随机接入过程。
步骤107，生成第二随机数。
在本步骤中，UE通过自身维护的随机数生成器生成上述第二随机数。
步骤108，根据生成的第二随机数判断自身是否可以作为TA广播设备，如果是，则执行步骤109；否则，结束本流程，进入睡眠模式。
具体在本步骤中，可以将所生成的第二随机数与自身存储的第二门限进行比较，判断所生成的第二随机数是否小于自身存储的第二门限，如果所生成的第二随机数小于自身存储的第二门限，则确定自身可以作为TA广播设备；如果所生成的第二随机数大于或等于自身存储的第二门限，则确定自身不能作为TA广播设备。
需要说明的是，上述第二随机数小于第二门限的成为TA广播设备的判断条件也只是一个举例，在本申请的实施例中，还可以配置其他的成为TA广播设备的判断条件。例如，可以设置在第二随机数大于第二门限的情形下UE可以作为TA广播设备，反之则不可以。同样，这些条件的设置并不用于限制本申请的保护范围。
在本申请的实施例中，上述第二门限可以是预先确定并存储在UE中的；上述第二门限也可以是eNB发送给各个UE的，例如广播给各个UE的。
而且，在本申请的实施例中，针对不同的UE还可以配置不同的第二门限，例如，对于有能力且有意愿进行TA广播的UE(即有能力且有意愿称为TA广播设备的UE)可以配置较高的第一门限，从而增加其作为TA广播设备进行TA广播的概率；而对于没有能力作为TA广播设备发送广播消息的UE则可以配置为0，从而免其成为TA广播设备。
步骤109，根据获取的TA值生成TA消息。
在本步骤中，UE可以根据获取的TA值生成图2所示的TA消息，其中包括：将获取的TA值加入TA字段201以及生成TA跳数加入跳数字段202。当TA消息包括小区标识字段的情况下，UE还可以将自身所在小区的标识加入小区标识字段203。
其中，UE生成TA跳数的具体方法包括：如果获取的TA值是通过随机接入过程直接从eNB获取的，则生成的TA跳数为0；如果获取的TA值从其他UE广播的TA消息中获取的，则生成的TA跳数为所接收TA消息中跳数字段202所承载的TA跳数加1。也即，在所接收TA消息所承载的TA跳数值的基础之上加1。这表明，该TA值又增加了一次UE的转发。
步骤110，广播生成的TA消息。
在本步骤中，UE可以通过LTE边带传输(Sidelink)来广播生成的TA消息。具体而言，可以用物理层边带共享信道(Physical sidelink shared channel，PSSCH)信道承载生成的TA消息。
在本申请的实施例中，UE可以多次广播生成的TA消息，例如在UE设置广播最大次数B或广播时间窗的长度Tb，在这种情况下，UE 可以重复执行上述步骤110B次或者在时间窗Tb内重复执行上述步骤110，然后，再结束上述流程，进入睡眠模式。
而且，在本步骤中，UE广播TA消息的功率受到UE最大广播功率以及上述广播时间窗长度Tb的限制。
此外，为了避免由于TA值转发次数过多造成的TA值的偏差过大，在执行上述步骤109之前，还可以进一步增加一个判断步骤：
步骤109A，如果TA值是来自其他UE的TA消息，且该TA消息跳数字段202承载的TA跳数大于或等于预先确定的第三门限，则结束上述流程，进入睡眠模式，而无需生成并广播TA消息；否则，继续执行步骤109。
上述第三门限可以是预先确定并存储在UE中的，也可以是由eNB发送给UE的，例如广播给UE的。上述第三门限的设置可以综合考虑TA值的精确度以及在整个小区内广播的TA消息数目，通过设置合适的第三门限可以在降低UE的接入时延同时增大UE的接入概率。例如，如果UE广播TA消息的功率为P，则可以得到从TA消息的发送端到可以接收该TA消息的接收端的距离d，进而可以确定在这个距离d上的传播的信号的时延Td。则Td和上述第三门限的乘积要小于可以忍受的最大上行时延。
通过上述方法可以看出，本申请实施例给出的上行数据传输方法无需所有的UE都执行随机接入过程。在该方法中，部分UE通过随机接入过程获得TA值，而部分UE从其他UE广播的TA消息中获得TA值。由于不是所有的UE都执行随机接入过程，因而可以大大减少由于UE随机接入过程的碰撞而带来的接入时延，信令开销以及功率消耗。即使是在5G的大连接物联网的应用场景下也可以获得很好的上行接入性能。
作为上述方案的替代方案，在本申请的实施例中，也可以由eNB对 UE是否进行随机接入过程进行直接指定，例如下发可以执行随机接入过程的UE的标识等等。在这种情况下，某个UE如果被指定为可以执行随机接入过程，则无需执行上述生成第一随机数以及根据第一随机数进行判断的步骤(不执行步骤101和102)，而直接进行随机接入过程，并获得TA值(步骤103)。某个UE如果没有被指定为可以执行随机接入过程，则可以从其他UE广播的TA消息中获得TA值(步骤104)。
或者，系统可以预先设定某些UE可以不用执行上述生成第一随机数以及根据第一随机数判断是否可以执行随机接入的过程，而可以直接执行随机接入过程。例如，对于MTC簇中的头(Head)用户系统可直接预设为可以进行随机接入的用户。
另外，也作为上述方案的简化替代方案，在成功传输了上行数据之后，UE可以不执行生成第二随机数以及根据第二随机数判断自身是否为TA广播设备的步骤(不执行步骤107和108)，而直接执行生成TA消息并广播所生成TA消息的步骤(步骤109和110)。这样，即设定了所有成功传输了上行数据的UE都要广播TA消息给其他UE。当然，之前的方案与上述简化方案相比，具有更好的灵活性以及可控性，可以避免LTE Sidelink的频率拥堵以及过度的功率开销，而且也更适合于需要获得TA的用户比较密集的场景。在这种需要获得TA的用户比较密集的场景下，其实并不需要很多的UE成为TA广播设备，通过少量UE的广播即可使多数UE获得TA值。
对应上述上行数据传输方法，本申请的实施例还提供了实现上述方法的UE。图3显示本申请实施例所述的UE 300的内部结构。
如图3所示，本申请实施例所述的UE 300包括：处理器301、存储器302、发送装置303以及接收装置304。处理器301和存储器302、发 送装置303以及接收装置304通过连接单元305进行通信。处理器301用于执行302中存储的以下指令模块：
第一随机数生成模块3021，用于生成第一随机数；
TA获取模块3022，用于根据第一随机数确定是否执行随机接入过程；如果执行随机接入过程，则通过接收装置304通过随机接入过程从eNB获得TA值；如果不执行随机过程，则通过接收装置304监听其他UE广播的TA消息，从中获得TA值；
数据传输模块3023，用于根据获得的TA值通过发送装置303进行上行数据传输。
第二随机数生成模块3024，用于生成第二随机数。
TA消息生成模块3025，用于根据第二随机数确定是否作为TA广播设备，如果作为TA广播设备，则根据获取的TA值生成TA消息。
广播模块3026，用于通过发送装置303广播生成的TA消息。
上述UE还可以进一步包括：用于存储第一门限的第一存储模块；在这种情况下，上述TA获取模块3022将所生成的第一随机数与存储模块存储的第一门限进行比较，判断所生成的第一随机数是否小于自身存储的第一门限，如果所生成的第一随机数小于自身存储的第一门限，则发起随机接入过程；如果所生成的第一随机数大于或等于自身存储的第一门限，则不发起随机接入过程。
上述UE还可以进一步包括：用于存储第二门限的第二存储模块；在这种情况下，上述TA消息生成模块3025将所生成的第二随机数与自身存储的第二门限进行比较，判断所生成的第二随机数是否小于自身存储的第二门限，如果所生成的第二随机数小于自身存储的第二门限，则确定自身为TA广播设备。
如前所述，上述TA消息可以包括：TA字段、跳数字段和小区标识 字段；此时，上述TA消息生成模块3025将获取的TA值加入TA消息的TA字段；生成TA跳数加入TA消息的跳数字段；以及将自身所在小区的标识加入TA消息的小区标识字段。
此外，上述广播模块3026可以在设置的广播时间窗长度内重复广播生成的TA消息。
另外，上述TA消息生成模块3025在生成TA消息之前，还可以进一步判断：如果TA值是来自其他UE的TA消息，且该TA消息承载的TA跳数大于或等于预先确定的第三门限，则结束，而不生成TA消息。
如前所述，作为替代简化方案，UE可以不包括上述第二随机数生成模块3024。在这种情况下，上述TA消息生成模块3025无需进行任何判断，可以直接根据获取的TA值生成TA消息。
通过上述UE设备可以看出，本申请实施例给出的UE不一定都执行随机接入过程，除了通过随机接入过程从eNB获得TA值之外，还可以从其他UE广播的TA消息中获得TA值，从而大大减少由于UE之间随机接入过程的碰撞而带来的接入时延，信令开销以及功率消耗。因此，即使是在5G的大连接物联网的应用场景下也可以获得很好的上行接入性能。
在以上的说明中，UE 300的硬件结构可以包括一个或者多个图中所示的各部件，也可以不包括部分部件。
例如，处理器301仅图示出一个，但也可以为多个处理器。此外，可以通过一个处理器来执行处理，也可以通过一个以上的处理器同时、依次、或采用其它方法来执行处理。另外，处理器301可以通过一个以上的芯片来安装。
存储器302是计算机可读取记录介质，例如可以由只读存储器(ROM，Read Only Memory)、可编程只读存储器(EPROM，Erasable  Programmable ROM)、电可编程只读存储器(EEPROM，Electrically EPROM)、随机存取存储器(RAM，Random Access Memory)、其它适当的存储介质中的至少一个来构成。存储器602和702也可以称为寄存器、高速缓存、主存储器(主存储装置)等。存储器602和702可以分别保存用于实施本申请的实施方式所涉及的上行数据传输方法的可执行程序(程序代码)、软件模块等。此外，UE 300可以包括微处理器、数字信号处理器(DSP，Digital Signal Processor)、专用集成电路(ASIC，Application Specific Integrated Circuit)、可编程逻辑器件(PLD，Programmable Logic Device)、现场可编程门阵列(FPGA，Field Programmable Gate Array)等硬件，可以通过该硬件来实现各功能块的部分或全部。例如，处理器301可以通过这些硬件中的至少一个来安装。
另外，关于本说明书中说明的用语和/或对本说明书进行理解所需的用语，可以与具有相同或类似含义的用语进行互换。例如，信道和/或符号也可以为信号(信令)。此外，信号也可以为消息。
此外，本说明书中说明的信息、参数等可以用绝对值来表示，也可以用与规定值的相对值来表示，还可以用对应的其它信息来表示。例如，无线资源可以通过规定的索引来指示。进一步地，使用这些参数的公式等也可以与本说明书中明确公开的不同。
本说明书中说明的信息、信号等可以使用各种各样不同技术中的任意一种来表示。例如，在上述的全部说明中可能提及的数据、命令、指令、信息、信号、比特、符号、芯片等可以通过电压、电流、电磁波、磁场或磁性粒子、光场或光子、或者它们的任意组合来表示。
此外，信息、信号等可以从上层向下层、和/或从下层向上层输出。信息、信号等可以经由多个网络节点进行输入或输出。
输入或输出的信息、信号等可以保存在特定的场所(例如内存)，也 可以通过管理表进行管理。输入或输出的信息、信号等可以被覆盖、更新或补充。输出的信息、信号等可以被删除。输入的信息、信号等可以被发往其它装置。
信息的通知并不限于本说明书中说明的方式/实施方式，也可以通过其它方法进行。例如，信息的通知可以通过物理层信令(例如，下行链路控制信息(DCI，Downlink Control Information)、上行链路控制信息(UCI，Uplink Control Information))、上层信令(例如，无线资源控制(RRC，Radio Resource Control)信令、广播信息(主信息块(MIB，Master Information Block)、系统信息块(SIB，System Information Block)等)、媒体存取控制(MAC，Medium Access Control)信令)、其它信号或者它们的组合来实施。
另外，物理层信令也可以称为L1/L2(第1层/第2层)控制信息(L1/L2控制信号)、L1控制信息(L1控制信号)等。此外，RRC信令也可以称为RRC消息，例如可以为RRC连接建立(RRC Connection Setup)消息、RRC连接重配置(RRC Connection Reconfiguration)消息等。此外，MAC信令例如可以通过MAC控制单元(MAC CE(Control Element))来通知。
此外，规定信息的通知(例如，“为X”的通知)并不限于显式地进行，也可以隐式地(例如，通过不进行该规定信息的通知，或者通过其它信息的通知)进行。
关于判定，可以通过由1比特表示的值(0或1)来进行，也可以通过由真(true)或假(false)表示的真假值(布尔值)来进行，还可以通过数值的比较(例如与规定值的比较)来进行。
软件无论被称为软件、固件、中间件、微代码、硬件描述语言，还是以其它名称来称呼，都应宽泛地解释为是指命令、命令集、代码、代 码段、程序代码、程序、子程序、软件模块、应用程序、软件应用程序、软件包、例程、子例程、对象、可执行文件、执行线程、步骤、功能等。
此外，软件、命令、信息等可以经由传输介质被发送或接收。例如，当使用有线技术(同轴电缆、光缆、双绞线、数字用户线路(DSL，Digital Subscriber Line)等)和/或无线技术(红外线、微波等)从网站、服务器、或其它远程资源发送软件时，这些有线技术和/或无线技术包括在传输介质的定义内。
本说明书中使用的“系统”和“网络”这样的用语可以互换使用。
在本说明书中，“基站(BS，Base Station)”、“无线基站”、“eNB”、“gNB”、“小区”、“扇区”、“小区组”、“载波”以及“分量载波”这样的用语可以互换使用。基站有时也以固定台(fixed station)、NodeB、eNodeB(eNB)、接入点(access point)、发送点、接收点、毫微微小区、小小区等用语来称呼。
基站可以容纳一个或多个(例如三个)小区(也称为扇区)。当基站容纳多个小区时，基站的整个覆盖区域可以划分为多个更小的区域，每个更小的区域也可以通过基站子系统(例如，室内用小型基站(射频拉远头(RRH，Remote Radio Head)))来提供通信服务。“小区”或“扇区”这样的用语是指在该覆盖中进行通信服务的基站和/或基站子系统的覆盖区域的一部分或整体。
在本说明书中，“移动台(MS，Mobile Station)”、“用户终端(user terminal)”、“用户装置(UE，User Equipment)”以及“终端”这样的用语可以互换使用。基站有时也以固定台(fixed station)、NodeB、eNodeB(eNB)、接入点(access point)、发送点、接收点、毫微微小区、小小区等用语来称呼。
移动台有时也被本领域技术人员以用户台、移动单元、用户单元、 无线单元、远程单元、移动设备、无线设备、无线通信设备、远程设备、移动用户台、接入终端、移动终端、无线终端、远程终端、手持机、用户代理、移动客户端、客户端或者若干其它适当的用语来称呼。
此外，本说明书中的无线基站也可以用用户终端来替换。例如，对于将无线基站和用户终端间的通信替换为多个用户终端间(D2D，Device-to-Device)的通信的结构，也可以应用本发明的各方式/实施方式。此时，可以将上述的eNB所具有的功能当作UE 300所具有的功能。此外，“上行”和“下行”等文字也可以替换为“侧”。例如，上行信道也可以替换为侧信道。
同样，本说明书中的用户终端也可以用无线基站来替换。此时，可以将上述的UE 300所具有的功能当作eNB所具有的功能。
在本说明书中，设为通过基站进行的特定动作根据情况有时也通过其上级节点(upper node)来进行。显然，在具有基站的由一个或多个网络节点(network nodes)构成的网络中，为了与终端间的通信而进行的各种各样的动作可以通过基站、除基站之外的一个以上的网络节点(可以考虑例如移动管理实体(MME，Mobility Management Entity)、服务网关(S-GW，Serving-Gateway)等，但不限于此)、或者它们的组合来进行。
本说明书中说明的各方式/实施方式可以单独使用，也可以组合使用，还可以在执行过程中进行切换来使用。此外，本说明书中说明的各方式/实施方式的处理步骤、序列、流程图等只要没有矛盾，就可以更换顺序。例如，关于本说明书中说明的方法，以示例性的顺序给出了各种各样的步骤单元，而并不限定于给出的特定顺序。
本说明书中说明的各方式/实施方式可以应用于利用长期演进(LTE，Long Term Evolution)、高级长期演进(LTE-A，LTE-Advanced)、超越 长期演进(LTE-B，LTE-Beyond)、超级第3代移动通信系统(SUPER 3G)、高级国际移动通信(IMT-Advanced)、第4代移动通信系统(4G，4th generation mobile communication system)、第5代移动通信系统(5G，5th generation mobile communication system)、未来无线接入(FRA，Future Radio Access)、新无线接入技术(New-RAT，Radio Access Technology)、新无线(NR，New Radio)、新无线接入(NX，New radio access)、新一代无线接入(FX，Future generation radio access)、全球移动通信系统(GSM(注册商标)，Global System for Mobile communications)、码分多址接入2000(CDMA2000)、超级移动宽带(UMB，Ultra Mobile Broadband)、IEEE 802.11(Wi-Fi(注册商标))、IEEE 802.16(WiMAX(注册商标))、IEEE 802.20、超宽带(UWB，Ultra-WideBand)、蓝牙(Bluetooth(注册商标))、其它适当的无线通信方法的系统和/或基于它们而扩展的下一代系统。
本说明书中使用的“根据”这样的记载，只要未在其它段落中明确记载，则并不意味着“仅根据”。换言之，“根据”这样的记载是指“仅根据”和“至少根据”这两者。
本说明书中使用的“判断(确定)(determining)”这样的用语有时包含多种多样的动作。例如，关于“判断(确定)”，可以将计算(calculating)、推算(computing)、处理(processing)、推导(deriving)、调查(investigating)、搜索(looking up)(例如表、数据库、或其它数据结构中的搜索)、确认(ascertaining)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，也可以将接收(receiving)(例如接收信息)、发送(transmitting)(例如发送信息)、输入(input)、输出(output)、存取(accessing)(例如存取内存中的数据)等视为是进行“判断(确定)”。此外，关于“判断(确定)”，还可以将解决(resolving)、选择(selecting)、选定(choosing)、建立 (establishing)、比较(comparing)等视为是进行“判断(确定)”。也就是说，关于“判断(确定)”，可以将若干动作视为是进行“判断(确定)”。
本说明书中使用的“连接的(connected)”、“结合的(coupled)”这样的用语或者它们的任何变形是指两个或两个以上单元间的直接的或间接的任何连接或结合，可以包括以下情况：在相互“连接”或“结合”的两个单元间，存在一个或一个以上的中间单元。单元间的结合或连接可以是物理上的，也可以是逻辑上的，或者还可以是两者的组合。例如，“连接”也可以替换为“接入”。在本说明书中使用时，可以认为两个单元是通过使用一个或一个以上的电线、线缆、和/或印刷电气连接，以及作为若干非限定性且非穷尽性的示例，通过使用具有射频区域、微波区域、和/或光(可见光及不可见光这两者)区域的波长的电磁能等，被相互“连接”或“结合”。
在本说明书或权利要求书中使用“包括(including)”、“包含(comprising)”、以及它们的变形时，这些用语与用语“具备”同样是开放式的。进一步地，在本说明书或权利要求书中使用的用语“或(or)”并非是异或。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请保护的范围之内。

Claims (21)

  1. 一种上行数据传输方法，其特征在于，包括：
    A、生成第一随机数；
    B、根据生成的第一随机数判断是否发起随机接入过程，如果发起随机接入过程，则通过随机接入过程从基站获得时间提前量TA值；如果不发起随机接入过程，则监听其他用户终端UE广播的TA消息从中获得TA值；
    C、根据获得的TA值进行上行数据传输；
    D、若上行数据传输成功，则继续执行E；如果上行数据传输不成功，则返回A；
    E、根据获取的TA值生成TA消息，并广播所生成的TA消息。
  2. 根据权利要求1所述的方法，其特征在于，所述根据生成的第一随机数判断是否发起随机接入过程包括：
    将所生成的第一随机数与自身存储的第一门限进行比较，判断所生成的第一随机数是否小于自身存储的第一门限，如果所生成的第一随机数小于自身存储的第一门限，则发起随机接入过程；如果所生成的第一随机数大于或等于自身存储的第一门限，则不发起随机接入过程。
  3. 根据权利要求2所述的方法，其特征在于，所述第一门限为预先确定的；或者为从基站接收的。
  4. 根据权利要求1所述的方法，其特征在于，在执行E之前，进一步包括：
    生成第二随机数，并根据生成的第二随机数确定自身是否为TA广播设备，如果自身是TA广播设备，则执行E；否则，结束。
  5. 根据权利要求4所述的方法，其特征在于，根据生成的第二随机数确定自身是否为TA广播设备包括：
    将所生成的第二随机数与自身存储的第二门限进行比较，判断所生成的第二随机数是否小于自身存储的第二门限，如果所生成的第二随机数小于自身存储的第二门限，则确定自身为TA广播设备。
  6. 根据权利要求5所述的方法，其特征在于，所述第二门限为预先确定的；或者为从基站接收的。
  7. 根据权利要求1所述的方法，其特征在于，所述TA消息包括：TA字段、跳数字段和小区标识字段；
    所述根据获取的TA值生成TA消息包括：
    将获取的TA值加入TA消息的TA字段；
    生成TA跳数加入TA消息的跳数字段；以及
    将自身所在小区的标识加入TA消息的小区标识字段。
  8. 根据权利要求7所述的方法，其特征在于，所述生成TA跳数包括：
    如果获取的TA值是通过随机接入过程直接从基站获取的，则生成的TA跳数为0；
    如果获取的TA值是从其他UE广播的TA消息中获取的，则生成的TA跳数为所接收TA消息中跳数字段所承载的TA跳数加1。
  9. 根据权利要求1所述的方法，其特征在于，所述广播所生成的TA消息包括：通过LTE Sidelink广播生成的TA消息。
  10. 根据权利要求1所述的方法，其特征在于，所述监听其他UE广播的TA消息，从中获得TA值包括：
    设置一个时间窗T，如果在时间窗T内接收到来自其他UE的TA消息，则从接收的TA消息中获得TA值。
  11. 根据权利要求10所述的方法，其特征在于，所述TA消息包括：TA字段、跳数字段和小区标识字段；
    所述从接收的TA消息中获得TA值包括：
    如果只接收到1个TA消息，则直接从所述TA消息中获取TA值；
    如果接收到多于1个TA消息，则检查各个TA消息承载的TA跳数，从中确定TA跳数最少的TA消息；
    如果TA跳数最少的TA消息只有1个，则直接从所述TA消息中获取TA值；
    如果TA跳数最少的TA消息有多个，则进一步判断各TA消息承载的小区标识是否相同，
    如果相同，则对各个TA消息承载的TA值进行线性合并，然后根据合并后的TA值确定自身的TA值；
    如果不同，则确定接收功率强度最大的小区或自己的服务小区对应的TA消息，并所确定的TA消息确定自身的TA值。
  12. 根据权利要求1所述的方法，其特征在于，进一步包括：在设置的广播时间窗长度内重复广播生成的TA消息。
  13. 根据权利要求1所述的方法，其特征在于，所述TA消息进一步包括：跳数字段；
    在生成TA消息之前，所述方法进一步包括：如果TA值是来自其他UE的TA消息，且该TA消息承载的TA跳数大于或等于预先确定的第三门限，则结束。
  14. 一种用户设备UE，其特征在于，包括：
    第一随机数生成模块，用于生成第一随机数；
    时间提前量TA获取模块，用于根据第一随机数确定是否执行随机接入过程；如果执行随机接入过程，则通过随机接入过程从eNB获得TA值；如果不执行随机过程，则监听其他UE广播的TA消息从中获得TA值；
    数据传输模块，用于根据获得的TA值进行上行数据传输；
    TA消息生成模块，用于根据获取的TA值生成TA消息；以及
    广播模块，用于广播生成的TA消息。
  15. 根据权利要求14所述的UE，其特征在于，进一步包括：第一存储模块，用于存储第一门限；
    所述TA获取模块将所生成的第一随机数与存储模块存储的第一门限进行比较，判断所生成的第一随机数是否小于自身存储的第一门限，如果所生成的第一随机数小于自身存储的第一门限，则发起随机接入过程；如果所生成的第一随机数大于或等于自身存储的第一门限，则不发起随机接入过程。
  16. 根据权利要求14所述的UE，其特征在于，进一步包括：
    第二随机数生成模块，用于生成第二随机数；
    所述TA消息生成模块在生成TA消息之前，先根据第二随机数确定自身是否为TA广播设备，如果自身为TA广播设备，则根据获取的TA值生成TA消息；否则，不生成TA消息。
  17. 根据权利要求16所述的方法，其特征在于，进一步包括：第二存储模块，用于存储第二门限；
    所述TA消息生成模块将所生成的第二随机数与自身存储的第二门限进行比较，判断所生成的第二随机数是否小于自身存储的第二门限，如果所生成的第二随机数小于自身存储的第二门限，则确定自身为TA广播设备。
  18. 根据权利要求14所述的UE，其特征在于，所述TA消息包括：TA字段、跳数字段和小区标识字段；
    所述TA消息生成模块将获取的TA值加入TA消息的TA字段；生成TA跳数加入TA消息的跳数字段；以及将自身所在小区的标识加入 TA消息的小区标识字段。
  19. 根据权利要求14所述的UE，其特征在于，所述广播模块在设置的广播时间窗长度内重复广播生成的TA消息。
  20. 根据权利要求14所述的UE，其特征在于，所述TA消息生成模块在生成TA消息之前，进一步判断：如果TA值是来自其他UE的TA消息，且该TA消息承载的TA跳数大于或等于预先确定的第三门限，则结束操作。
  21. 一种非易失性计算机可读存储介质，其特征在于，所述存储介质中存储有机器可读指令，所述机器可读指令可以由处理器执行以完成以下操作：
    A、生成第一随机数；
    B、根据生成的第一随机数判断是否发起随机接入过程，如果发起随机接入过程，则通过随机接入过程从基站获得时间提前量TA值；如果不发起随机接入过程，则监听其他用户终端UE广播的TA消息从中获得TA值；
    C、根据获得的TA值进行上行数据传输；
    D、若上行数据传输成功，则继续执行E；如果上行数据传输不成功，则返回A；
    E、根据获取的TA值生成TA消息，并广播所生成的TA消息。
PCT/CN2017/092152 2016-08-05 2017-07-07 上行数据传输方法及装置 WO2018024078A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2019506195A JP6899426B2 (ja) 2016-08-05 2017-07-07 上りデータ伝送方法及び装置
CN201780043832.3A CN109479249B (zh) 2016-08-05 2017-07-07 上行数据传输方法及装置
US16/323,207 US10764856B2 (en) 2016-08-05 2017-07-07 Uplink data transmission method and apparatus
EP17836260.4A EP3496474A4 (en) 2016-08-05 2017-07-07 UPLINK DATA TRANSFER METHOD AND DEVICE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610639207.2 2016-08-05
CN201610639207.2A CN107690183A (zh) 2016-08-05 2016-08-05 上行数据传输方法及装置

Publications (1)

Publication Number Publication Date
WO2018024078A1 true WO2018024078A1 (zh) 2018-02-08

Family

ID=61073209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/092152 WO2018024078A1 (zh) 2016-08-05 2017-07-07 上行数据传输方法及装置

Country Status (5)

Country Link
US (1) US10764856B2 (zh)
EP (1) EP3496474A4 (zh)
JP (1) JP6899426B2 (zh)
CN (2) CN107690183A (zh)
WO (1) WO2018024078A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110268739A (zh) * 2019-05-09 2019-09-20 北京小米移动软件有限公司 接入控制方法、装置及可读存储介质

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110475338B (zh) * 2018-05-11 2021-09-07 华为技术有限公司 上行传输的方法和用户设备
CN110720184B (zh) * 2018-08-29 2021-03-26 深圳市大疆创新科技有限公司 一种tdd通信方法及设备
EP3998838A4 (en) * 2019-07-12 2023-03-29 Beijing Xiaomi Mobile Software Co., Ltd. METHOD AND APPARATUS FOR INDICATING TIME ADVANCE, COMMUNICATION DEVICE AND STORAGE MEDIA
US20220210825A1 (en) * 2020-12-28 2022-06-30 Samsung Electronics Co., Ltd. Method and apparatus of uplink timing adjustment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101646234A (zh) * 2009-09-01 2010-02-10 中兴通讯股份有限公司 一种定时提前量的获取方法
CN102165840A (zh) * 2008-09-25 2011-08-24 诺基亚公司 用于设备到设备通信的同步
EP2408253A1 (en) * 2010-07-13 2012-01-18 Alcatel Lucent Method for random access to a wireless or mobile communication network, and corresponding transceiver equipment
CN103491622A (zh) * 2012-06-12 2014-01-01 电信科学技术研究院 上行传输方法和设备
CN105453627A (zh) * 2013-08-06 2016-03-30 夏普株式会社 终端装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2427018B1 (en) * 2010-09-07 2016-02-17 Alcatel Lucent Access to a wireless communications network by a transceiver equipment selecting a non-zero timing advance value used for sending a Random Access Channel preamble to a LTE base station
CN105979576B (zh) * 2011-04-02 2019-09-13 华为技术有限公司 辅助定时提前量的获取方法和设备
US9215645B2 (en) * 2011-05-02 2015-12-15 Telefonaktiebolaget L M Ericsson (Publ) Controlling network accesses by radio terminals associated with access classes
US20120314652A1 (en) * 2011-06-09 2012-12-13 Pantech Co., Ltd. Apparatus and method for performing random access in wireless communication system
US9019921B2 (en) * 2012-02-22 2015-04-28 Lg Electronics Inc. Method and apparatus for transmitting data between wireless devices in wireless communication system
CN103702408B (zh) * 2012-09-27 2017-03-15 上海贝尔股份有限公司 上行同步的方法和装置
JP5926394B2 (ja) * 2012-09-27 2016-05-25 京セラ株式会社 移動通信システム、ユーザ端末、基地局及びプロセッサ
EP2778802B1 (en) * 2013-03-11 2019-07-31 Kapsch TrafficCom AB A method for communication within a co-operative system
RU2748647C2 (ru) * 2013-04-10 2021-05-28 Телефонактиеболагет Л М Эрикссон (Пабл) Оборудование пользователя и способ осуществления и обеспечения связи типа "устройство-устройство" (d2d) в сети радиосвязи
EP2983425B1 (en) 2014-08-08 2019-03-06 Panasonic Intellectual Property Corporation of America D2D Data Transmission - Timing Advance for Idle Mode UE
CN105517139A (zh) * 2014-09-25 2016-04-20 中兴通讯股份有限公司 一种设备到设备通信的同步方法和用户设备
US10080120B2 (en) * 2014-12-15 2018-09-18 Huawei Technologies Co., Ltd System and method for machine type communication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102165840A (zh) * 2008-09-25 2011-08-24 诺基亚公司 用于设备到设备通信的同步
CN101646234A (zh) * 2009-09-01 2010-02-10 中兴通讯股份有限公司 一种定时提前量的获取方法
EP2408253A1 (en) * 2010-07-13 2012-01-18 Alcatel Lucent Method for random access to a wireless or mobile communication network, and corresponding transceiver equipment
CN103491622A (zh) * 2012-06-12 2014-01-01 电信科学技术研究院 上行传输方法和设备
CN105453627A (zh) * 2013-08-06 2016-03-30 夏普株式会社 终端装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3496474A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110268739A (zh) * 2019-05-09 2019-09-20 北京小米移动软件有限公司 接入控制方法、装置及可读存储介质
CN110268739B (zh) * 2019-05-09 2022-09-20 北京小米移动软件有限公司 接入控制方法、装置及可读存储介质

Also Published As

Publication number Publication date
US20190215792A1 (en) 2019-07-11
CN107690183A (zh) 2018-02-13
EP3496474A4 (en) 2020-03-11
JP2019527986A (ja) 2019-10-03
CN109479249A (zh) 2019-03-15
JP6899426B2 (ja) 2021-07-07
CN109479249B (zh) 2021-07-16
EP3496474A1 (en) 2019-06-12
US10764856B2 (en) 2020-09-01

Similar Documents

Publication Publication Date Title
US11102744B2 (en) Downlink synchronization method, and apparatus and system cross-reference to related applications
TWI746774B (zh) 用於經由共享射頻頻帶用信號發送公用陸上行動網路識別符的技術
WO2018024078A1 (zh) 上行数据传输方法及装置
US10362599B2 (en) Method for obtaining uplink synchronization and configuring uplink connection
RU2613024C2 (ru) Короткие идентификаторы для широковещательной прямой связи между устройствами (D2D)
WO2018082685A1 (zh) 随机接入的方法、网络设备和用户设备
JP6775665B2 (ja) プライマリセル変更のための方法、デバイス及びコンピュータプログラム
JP2018536348A (ja) 要求に応じてシステム情報を一斉同報するための方法およびデバイス
JP7300997B2 (ja) 物理ブロードキャストチャネルペイロード中で同期信号ブロックインデックスを通信するための技法
WO2021159856A1 (zh) 一种基于ue能力进行通信的方法和ue及网络侧设备
US11546108B2 (en) Downlink signal monitoring and transmitting method, and parameter configuration method and apparatus
WO2018024136A1 (zh) 一种随机接入方法及终端
JP7468595B2 (ja) 基地局装置、端末装置及び通信システム
US20220330291A1 (en) Method and apparatus of communication for reduced-capability user equipment in wireless communication system
US20240031092A1 (en) Terminal device and network device
WO2022133692A1 (zh) 状态切换的方法、终端设备和网络设备
JP7332687B2 (ja) ユーザ装置及び無線基地局
JP7413349B2 (ja) ランダムアクセス方法、データ受信方法及びその装置、通信システム
US11234257B2 (en) User equipment, base station, and uplink transmission timing control method
TW201531133A (zh) 一種用於傳輸上行回應消息的方法和設備
WO2018024055A1 (zh) 上行数据传输方法及装置
JP7486397B2 (ja) プライマリセル変更のための方法、デバイス及びコンピュータプログラム
WO2023013004A1 (ja) 端末
WO2023065929A1 (zh) 一种接入通信网络的方法和装置
WO2020140290A1 (zh) 无线通信方法及设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17836260

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019506195

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2017836260

Country of ref document: EP

Effective date: 20190305