WO2020164123A1 - 一种通信方法及设备 - Google Patents

一种通信方法及设备 Download PDF

Info

Publication number
WO2020164123A1
WO2020164123A1 PCT/CN2019/075249 CN2019075249W WO2020164123A1 WO 2020164123 A1 WO2020164123 A1 WO 2020164123A1 CN 2019075249 W CN2019075249 W CN 2019075249W WO 2020164123 A1 WO2020164123 A1 WO 2020164123A1
Authority
WO
WIPO (PCT)
Prior art keywords
verification
information
terminal device
verification criteria
criteria
Prior art date
Application number
PCT/CN2019/075249
Other languages
English (en)
French (fr)
Inventor
毕文平
余政
程型清
谢信乾
费永强
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19915304.0A priority Critical patent/EP3911046A4/en
Priority to CN201980091857.XA priority patent/CN113424604B/zh
Priority to PCT/CN2019/075249 priority patent/WO2020164123A1/zh
Publication of WO2020164123A1 publication Critical patent/WO2020164123A1/zh
Priority to US17/401,566 priority patent/US20210377895A1/en

Links

Images

Classifications

    • 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
    • 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
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment

Definitions

  • This application relates to the field of communication technology, and in particular to a communication party and equipment.
  • the uplink data sent by the UE may reach a base station (evolved Node-B, eNB) at different times, which may cause interference between users. Therefore, the eNB estimates the uplink timing of the UE and sends a Timing Advance (TA) to the UE according to the estimated uplink timing. The UE adjusts the uplink transmission time according to the TA to make the uplink data sent by each UE in the cell reach the eNB. the same.
  • a base station evolved Node-B, eNB
  • TA Timing Advance
  • the uplink scheduling-free transmission process is as follows: when the UE has uplink data to send, the base station does not need to perform dynamic uplink scheduling on the UE, and the UE performs uplink transmission on the pre-configured transmission resources according to the predetermined transmission mode. In the uplink scheduling-free transmission process, the UE must have a valid TA before performing uplink scheduling-free transmission.
  • the embodiments of the present application provide a communication method and device, which are used to solve the problem of how to determine the validity of the TA by combining multiple TA verification criteria in the prior art.
  • an embodiment of the present application provides a communication method, including: the terminal device determines first information and second information, and the first information is used by the terminal device to determine the validity of the TA.
  • the terminal device determines N TA verification criteria according to the second information, and determines the validity of the TA according to the first information and the N TA verification criteria.
  • the N is an integer greater than or equal to 1
  • the TA verification criterion includes: the TA verification criterion is established when a set condition is satisfied.
  • the terminal device determines the validity of the TA by combining the first information and the N TA verification criteria, which can effectively and reasonably jointly use different verification criteria to verify the validity of the TA, thereby improving the accuracy of the TA validity verification. Therefore, unnecessary TA update steps can be avoided, thereby ensuring that the system does not waste power consumption while ensuring that it does not interfere with the system.
  • the first information may be predefined, or the first information may also be configured by a network device.
  • the first information may be configured by the network device through high-level signaling, and the high-level signaling may be radio resource control signaling (radio resource control, RRC) or media access control control unit (media access control).
  • RRC radio resource control
  • MACCE media access control control unit
  • DCI downstream control information
  • the second information may be predefined, or the second information may also be configured by the network device.
  • the terminal device may The first information and the Y TA verification criteria determine the validity of the TA. If the terminal device determines that at least one of the X TA verification criteria is established, the terminal device may determine that the TA is invalid.
  • any TA verification criterion in the X verification criteria when any TA verification criterion in the X verification criteria is established, it can be determined that the terminal device has undergone a large movement, such as a change in the serving cell. In this case, the TA can be determined to be invalid, so that the terminal device can quickly Determine the effectiveness of TA.
  • all the TA verification criteria in the X verification criteria are not established, it can indicate that the terminal device has not produced a large movement, so that the terminal device can further determine the effectiveness of the TA in combination with the Y TA verification criteria. In this way, it can be based on different scenarios. Setting different verification schemes can improve the speed and accuracy of TA verification.
  • the N TA verification criteria are divided into two categories according to their priority or the degree of correlation with TA effectiveness.
  • One type of verification criteria is strongly related to TA effectiveness (ie X TA verification criteria), and the other type of verification criteria If the correlation with the effectiveness of TA is weak (ie Y TA verification criteria), by classifying N verification criteria, the effectiveness of TA can be evaluated more accurately. For example, there is only one of the X TA verification criteria with strong correlation If it is established, then the TA is invalid. Only when none of the strongly related verification criteria are established, and only when one or more of the weakly related Y TA verification criteria are established, the TA is invalid.
  • the terminal device determines the validity of the TA according to the first information and the Y TA verification criteria
  • the terminal device determines that at least the Y TA verification criteria are If M TA verification criteria are established, the terminal device may determine that the TA is invalid, the M is an integer greater than 0 and less than or equal to Y, and the M is determined by the terminal device according to the first information.
  • the terminal device when the terminal device determines the validity of the TA according to the first information and the Y TA verification criteria, if the terminal device determines that the Y TA verification criteria are less than M TA verification criteria are established, the terminal device may determine that the TA is valid, the M is an integer greater than 0 and less than or equal to Y, and the M is determined by the terminal device according to the first information.
  • the threshold value M by determining the threshold value M according to the first information, different verification criteria can be effectively and reasonably used in combination to design and verify the validity of the TA, thereby improving the accuracy of the TA validity verification.
  • the N TA verification criteria may include a first set of TA verification criteria and a second set of TA verification criteria, and the first set of TA verification criteria includes one or more TA verification criteria, so
  • the second TA verification criterion set includes one or more TA verification criteria, and the TA verification criteria included in the first TA verification criterion set are different from the TA verification criteria included in the second TA verification criterion set. That is, no verification criterion belongs to the first TA verification criterion and the second verification criterion at the same time.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, if the terminal device determines that at least one TA verification criterion in the first set of TA verification criteria is established, then The terminal device may determine that the TA is invalid.
  • the N TA verification criteria are divided into two categories according to their priority or the degree of correlation with the effectiveness of the TA.
  • One type of verification criteria is strongly related to the effectiveness of the TA (that is, the first set of TA verification criteria).
  • One type of verification criterion has a weak correlation with the effectiveness of TA (ie the second set of TA verification criteria).
  • the effectiveness of TA can be more accurately evaluated, such as the first TA verification with strong correlation As long as one of the criterion sets is established, the TA is invalid. Only when the first TA verification criterion set with strong correlation is not established, the TA is invalid only when one or more of the second TA verification criterion set with weak correlation are established.
  • the terminal device determines the validity of the TA according to the first information and the second set of TA verification criteria, if the terminal device determines the second set of TA verification criteria At least M TA verification criteria are established, the terminal device may determine that the TA is invalid, the m is an integer greater than 0, and the m is determined by the terminal device according to the first information. In the above design, by determining the threshold value m according to the first information, different verification criteria can be effectively and reasonably used in combination to design and verify the validity of the TA, thereby improving the accuracy of the TA validity verification.
  • the terminal device when the terminal device determines the validity of the TA according to the first information and the second set of TA verification criteria, if the terminal device determines the second set of TA verification criteria If less than m TA verification criteria are established, the terminal device may determine that the TA is valid, the m is an integer greater than 0, and the m is determined by the terminal device according to the first information.
  • the terminal device by determining the threshold value m according to the first information, different verification criteria can be effectively and reasonably used in combination to design and verify the validity of the TA, thereby improving the accuracy of the TA validity verification.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, if the terminal device can determine that the N TA verification criteria When at least S TA verification criteria are established, the terminal device determines that the TA is invalid, 0 ⁇ S ⁇ N, and the S is an integer determined by the terminal device according to the first information.
  • the threshold value S by determining the threshold value S according to the first information, different verification criteria can be effectively and reasonably used in combination to design and verify the validity of the TA, thereby improving the accuracy of the TA validity verification.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, if the terminal device can determine that the N TA verification criteria are small or medium
  • the terminal device determines that the TA is valid.
  • different verification criteria can be effectively and reasonably used in combination to design and verify the validity of the TA, thereby improving the accuracy of the TA validity verification.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, if the terminal device determines that there is at least 1 of the R TA verification criteria When each TA verification criterion is established, the terminal device determines that the TA is invalid, and the R TA verification criteria are determined by the terminal device according to the N TA verification criteria and the first rule, 0 ⁇ R ⁇ N, R is an integer determined by the terminal device according to the first information, and the first rule is predefined or configured by the network device.
  • the efficiency and accuracy of the TA effectiveness verification can be improved.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, if the terminal device determines that all TAs in the R TA verification criteria are verified When none of the criteria are established, the terminal device determines that the TA is valid, the R TA verification criteria are determined by the terminal device according to the N TA verification criteria and the first rule, 0 ⁇ R ⁇ N, and the R is An integer determined by the terminal device according to the first information, and the first rule is predefined or configured by the network device.
  • the efficiency and accuracy of the TA effectiveness verification can be improved.
  • the first rule may be to determine the R TA verification criteria according to the priority of the N TA verification criteria.
  • the first rule may be to determine the R TA verification criteria according to the priority of the N TA verification criteria in descending order, or the first rule may also be based on the N TA verification criteria.
  • the priority of the TA verification criteria determines the R TA verification criteria in descending order.
  • the first rule may be to determine the R TA verification criteria according to the correlation of the N TA verification criteria, where the correlation may refer to the correlation between the TA verification criteria and the TA, etc. .
  • the first rule may be that the R TA verification criteria are determined in descending order of relevance of the N TA verification criteria, or the first rule may be that the R TA verification criteria are determined in accordance with the N TA verification criteria. The relevance of the verification criteria determines the R TA verification criteria in descending order.
  • the N TA verification criteria may include a first TA verification criterion, and the first TA verification criterion includes: if the first timer does not expire, the first TA verification criterion is not established; If the first timer expires and the first reference signal receiving power (Reference Signal Receiving Power, RSRP) value is less than the set threshold, the first TA verification criterion is not established; if the first timer expires and the first RSRP value If it is greater than or equal to the set threshold, the first TA verification criterion is established.
  • RSRP Reference Signal Receiving Power
  • the influence and misjudgment of the effectiveness of the TA in the initial measurement inaccuracy stage of RSRP can be effectively eliminated, and the stability and accuracy of the TA verification can be improved, thereby improving the system performance and reducing unnecessary operations of updating the TA, saving users Power consumption.
  • the first RSRP value may be the difference between two measured RSRP values.
  • the first RSRP value may be the RSRP value of the serving cell when the TA was acquired last time and the current RSRP of the serving cell.
  • the difference between the values, or the first RSRP value may also be the difference between the average value of the RSRP value of the serving cell measured in a period of time and the current RSRP value of the serving cell, etc., where the RSRP value may be
  • the linear value can also be a decibel (dB) value.
  • the N TA verification criteria may include a second TA verification criterion
  • the second TA verification criterion includes: if the second RSRP value is less than the first threshold, the second TA verification criterion Not established; if the second RSRP value is greater than or equal to the first threshold and the second timer does not expire, the second TA verification criterion is not established; if the second RSRP value is greater than or equal to the first threshold , And the second timer expires, the second TA verification criterion is established.
  • TA Timer also called Time Alignment Timer for idle mode
  • the TA Timer For example, for users with small location changes, although the TA Timer has expired, the user's location changes are small and have little impact on TA. Therefore, TA is still available. Therefore, when the RSRP value is small, the effect of the second timer on TA may not be considered. For the effect of effectiveness, the effect of the second timer on the effectiveness of TA is considered when the RSRP value is large.
  • the second RSRP value may be the difference between the RSRP value of the serving cell when the TA was last acquired and the current RSRP value of the serving cell.
  • the second RSRP value may be the difference between two measured RSRP values.
  • the second RSRP value may be the RSRP value of the serving cell when the TA was acquired last time and the current RSRP of the serving cell.
  • the difference between the values, or the second RSRP value may also be the difference between the average value of the RSRP value of the serving cell measured in a period of time and the current RSRP value of the serving cell, etc., where the RSRP value may be
  • the linear value can also be a decibel (dB) value.
  • the N TA verification criteria may include a third TA verification criterion
  • the third TA verification criterion includes: if a third timer does not expire, the third TA verification criterion is not established; if If the third timer expires and the third RSRP value is greater than the set threshold, the third TA verification criterion is not established; if the third timer expires and the third RSRP value is less than or equal to the set threshold, the third TA verification criteria are established.
  • the third RSRP value may be the measured RSRP value.
  • the third RSRP value may be the current RSRP value of the serving cell, or the third RSRP value may also be the measured RSRP value of the serving cell within a period of time.
  • the N TA verification criteria may include a fourth TA verification criterion
  • the fourth TA verification criterion includes: if the fourth RSRP value is greater than the second threshold, the fourth TA verification criterion is not established ; The fourth RSRP value is less than or equal to the second threshold, and the second timer does not expire, the fourth TA verification criterion is not established; if the fourth RSRP value is less than or equal to the second threshold, and The second timer expires, and the fourth TA verification criterion is established.
  • the fourth RSRP value may be a measured RSRP value.
  • the fourth RSRP value may be the current RSRP value of the serving cell, or the fourth RSRP value may be the measured value of the serving cell within a period of time.
  • an embodiment of the present application provides a communication method, including: a network device determines first information and second information, where the first information is used by the terminal device to determine the validity of the TA, and the second information Used for the terminal device to determine N TA verification criteria, where N is an integer greater than or equal to 1.
  • the network device sends the first information and the second information to the terminal device.
  • the network device sends the first information and the second information to the terminal device, so that the terminal device can determine the validity of the TA by combining the first information and N TA verification criteria, so that the terminal device can be effectively and reasonably used jointly
  • Different verification criteria are used to design and verify the effectiveness of TA, thereby improving the accuracy of TA effectiveness verification, which can ensure that the system does not waste power consumption while ensuring that it will not interfere with the system.
  • the network device may also only send the first information, which is used to enable the UE to determine the validity of the TA according to the first information and multiple verification criteria.
  • the second information may be pre-configured for the terminal device.
  • the network device may also only send the second information.
  • the first information may be pre-configured for the terminal device.
  • the network device may also send a first rule to the terminal device, where the first rule is to determine the N TA verification criteria in descending order of priority.
  • R TA verification criteria when the TA of the terminal device changes, the TA verification criterion with the higher priority will change the parameters used, so the R TA verification criteria are determined by combining the priority of the N TA verification criteria.
  • the R TA verification criteria can improve the efficiency and accuracy of TA validity verification when verifying the validity of the TA.
  • the first rule may be to determine the R TA verification criteria according to the priority of the N TA verification criteria.
  • the first rule may be to determine the R TA verification criteria according to the priority of the N TA verification criteria in descending order, or the first rule may also be based on the N TA verification criteria.
  • the priority of the TA verification criteria determines the R TA verification criteria in descending order.
  • the first rule may be to determine the R TA verification criteria according to the correlation of the N TA verification criteria, where the correlation may refer to the correlation between the TA verification criteria and the TA, etc. .
  • the first rule may be that the R TA verification criteria are determined in descending order of relevance of the N TA verification criteria, or the first rule may be that the R TA verification criteria are determined in accordance with the N TA verification criteria. The relevance of the verification criteria determines the R TA verification criteria in descending order.
  • this application provides a device, which may be a terminal device, a network device, or a chip.
  • the device has the function of implementing any one of the above-mentioned first aspect or second aspect. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • an apparatus including a processor, a communication interface, and a memory.
  • the communication interface is used to transmit information, and/or messages, and/or data between the device and other devices.
  • the memory is used to store computer-executable instructions.
  • the processor executes the computer-executable instructions stored in the memory, so that the device executes the communication method according to the first aspect or any one of the first aspects. , Or the communication method described in the second aspect or any one of the second aspects above.
  • the present application also provides a system, which includes the terminal device in any embodiment of the foregoing first aspect and the network device in any embodiment of the foregoing second aspect.
  • the present application also provides a computer-readable storage medium having instructions stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the methods described in the above aspects.
  • the present application also provides a computer program product including instructions, which when run on a computer, cause the computer to execute the methods described in the foregoing aspects.
  • FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the application
  • Figure 2 is a schematic diagram of a CP provided by an embodiment of the application.
  • FIG. 3 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 4 is a schematic diagram of a first TA verification criterion provided by an embodiment of the application.
  • FIG. 5 is a schematic flowchart of a communication method provided by an embodiment of this application.
  • FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 7 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a communication device provided by an embodiment of the application.
  • the communication method provided in this application can be applied to various communication systems, for example, the Internet of Things (IoT), the narrowband Internet of Things (NB-IoT), and the long term evolution (long term evolution).
  • LTE can also be a fifth generation (5G) communication system
  • 5G fifth generation
  • NR 5G new radio
  • GSM global system for mobile communication
  • GSM global system for mobile communication
  • UMTS mobile communication system
  • code division multiple access code division multiple access
  • CDMA code division multiple access
  • the terminal device involved in the embodiments of the present application is a device that provides users with voice and/or data connectivity, for example, a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • the terminal device can also be another processing device connected to the wireless modem.
  • the terminal device can communicate with one or more core networks through a radio access network (RAN).
  • Terminal equipment can also be called wireless terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point (access point) , Remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment), etc.
  • the terminal device can be a mobile terminal, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal.
  • a mobile terminal such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal.
  • the terminal device can be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device, which is compatible with wireless The access network exchanges language and/or data.
  • the terminal device can also be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), and other equipment.
  • Common terminal devices include, for example: mobile phones, tablet computers, laptops, handheld computers, mobile internet devices (MID), wearable devices, such as smart watches, smart bracelets, pedometers, etc., but this application is implemented Examples are not limited to this.
  • the network devices involved in the embodiments of the present application can be used to convert received air frames and Internet Protocol (IP) packets to each other, and serve as a router between the terminal device and the rest of the access network, where The rest of the access network can include IP networks and so on.
  • IP Internet Protocol
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment can be a base transceiver station (BTS) in the global system for mobile communication (GSM) or code division multiple access (CDMA), or it can be a broadband code division multiple access.
  • GSM global system for mobile communication
  • CDMA code division multiple access
  • the base station (NodeB) in (wideband code division multiple access, WCDMA), can also be the evolutionary base station (evolutional Node B, eNB or e-NodeB) in LTE, or the new radio controller (NR) controller), it can be the gNode B (gNB) in the 5G system, it can be a centralized unit, it can be a new wireless base station, it can be a remote radio module, it can be a micro base station, it can be a relay (relay ), which may be a distributed unit, may be a reception point (transmission reception point, TRP) or transmission point (transmission point, TP), or any other wireless access device, but the embodiment of the application is not limited thereto.
  • Network equipment can cover 1 or more cells.
  • a communication system provided in an embodiment of this application includes a network device and six terminal devices, namely UE1 to UE6.
  • UE1 to UE6 can send uplink data to a network device, and the network device can receive uplink data sent by UE1 to UE6.
  • UE4 to UE6 can also form a sub-communication system.
  • the network device can send downlink information to UE1, UE2, UE3, UE5, and UE5 can send downlink information to UE4, UE6 based on the device-to-device (D2D) technology.
  • Fig. 1 is only a schematic diagram, and does not specifically limit the type of the communication system, and the number and types of devices included in the communication system.
  • the UE may be in three states: an idle state, an inactive state (inactive), and a connected state (connected).
  • the connected state UE can communicate with the base station and transmit data through the base station dynamic scheduling, while for the idle state UE, it cannot transmit data through the base station dynamic scheduling. It needs to perform random access first, and then the data can be transmitted after the RRC connection is established. Transmission, or message 3 in the random access process, carries a small amount of uplink data.
  • the inactive state can be regarded as an intermediate state of these two states.
  • the UE and the core network retain the context of the radio resource control (RRC) message in the connected state, so it can be faster than the idle state Enter the connected state.
  • RRC radio resource control
  • Orthogonal frequency division multiplexing is used in the LTE system, and its composition structure is shown in Figure 2.
  • One of the benefits of this access is that as long as the time difference between different terminal devices reaching the network device does not exceed the length of the cyclic prefix (CP), then there will be no interference between different terminal devices.
  • terminal equipment In the same cell, different terminal devices have different locations, and the uplink data sent by the terminal devices may reach the network device at different times, which may cause interference between users. Therefore, terminal equipment must use an effective timing advance (Timing Advance, TA) when performing uplink scheduling-free transmission, so that the data sent by each terminal equipment during uplink scheduling-free transmission can reach the network equipment at the same time, thereby avoiding the terminal Interference between devices. For example, if there is no TA, the time at which user 1 in the center of the cell and user 2 on the edge of the cell arrive at the base station are very different, which may cause severe interference between user 1 and user 2. That is, when the time difference between the time when the data transmitted by user 1 arrives at the base station and the time when the data transmitted by user 2 arrives at the base station exceeds the CP, severe inter-symbol interference will occur.
  • Timing Advance Timing Advance
  • the base station In order to ensure the orthogonality of uplink transmission and avoid intra-cell interference, the base station requires signals from different UEs in the same subframe but with different frequency domain resources to arrive at the base station at substantially the same time. As long as the base station receives the uplink data sent by the UE within the CP, it can decode the uplink data correctly. Therefore, uplink synchronization requires that the time for signals from different UEs in the same subframe to reach the base station falls within the CP.
  • LTE proposes an uplink timing advance (uplink timing advance) mechanism.
  • TA is generally used for UE uplink transmission.
  • the radio transmission delay caused by the distance is estimated, and the data packet is sent out in advance by the corresponding time TA.
  • the TA is essentially a negative offset (negative offset) between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe.
  • the base station can control the time when uplink signals from different UEs arrive at the base station by appropriately controlling the offset of each UE. For UEs far away from the base station, due to a larger transmission delay, it is necessary to send uplink data earlier than UEs closer to the base station.
  • the network device can estimate the uplink timing of the terminal device and send TA to the terminal device according to the estimated uplink timing.
  • the terminal device adjusts the uplink transmission time according to the TA so that the uplink data sent by each terminal device in the cell arrives at the network device at the same time.
  • LTE release-16 decided to standardize the transmission mechanism on pre-defined resources, that is, communication that does not require dynamic downlink control information (downlink control information, DCI) scheduling , So it is also called dispatch-free transmission.
  • the uplink scheduling-free transmission process is as follows: when the UE has uplink data to send, the base station does not need to perform dynamic uplink scheduling on the UE, and the UE performs uplink transmission on the pre-configured transmission resources according to the predetermined transmission mode.
  • the TA value may be out of date or inapplicable.
  • the problem to be solved is how to Ensure the effectiveness of the uplink TA.
  • the UE For the connected UE, the UE maintains a TA timer. When the TA timer expires (there is no uplink signal transmission during this period), the UE updates the TA by sending a preamble; when the TA timer does not expire , The base station measures whether the TA is valid through the transmission of the uplink signal, and then triggers the user to update the TA through the TA command (command).
  • the serving cell change and idle mode time alignment timer can be used to verify the validity of the TA in the idle state.
  • Timer for idle mode serving cell reference signal receiving power (Reference Signal Receiving Power, RSRP) changes to verify the effectiveness of TA.
  • RSRP Reference Signal Receiving Power
  • the current technology does not provide a scheme on how to use the above verification criteria to determine the effectiveness of TA.
  • the current verification method is not very accurate. Taking the time calibration timer in the idle mode as an example, when the time calibration timer does not expire, the UE determines that the TA is valid, otherwise, it determines that the TA is invalid. However, the time calibration timer has certain inaccuracy. For example, for a UE with a small position change, although the time calibration timer has expired, the position change of the UE is small, and the impact on the TA is small, so the TA is still available , That is, the TA is still valid.
  • the embodiments of the present application provide a communication method and device, which are used to solve the problem of low accuracy of the method for the UE to verify the validity of the TA in the prior art.
  • the method and the device are based on the same inventive concept, and because the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.
  • the "TA is valid” or "TA is valid” involved in the embodiments of this application can be understood as the TA is accurate or usable, that is, it can be guaranteed that the terminal device using the TA to send uplink data can be transmitted with other terminal devices
  • the uplink data arrives at the network device in approximately the same time, or within the delay range tolerated by the CP, so there is no interference between users.
  • the "TA is invalid" or "TA invalid” involved in the embodiments of this application can be understood as the TA is inaccurate or unavailable.
  • the terminal equipment uses the uplink data sent by the TA and the uplink data sent by other terminal equipment to arrive.
  • the time difference of the network equipment is relatively large, or exceeds the delay range tolerated by the CP, which may cause interference between users.
  • Fig. 3 is a flowchart of a communication method provided by this application.
  • the method can be applied to the terminal equipment in the communication system shown in FIG. 1, and the method includes:
  • S301 The terminal device determines first information and second information, where the first information is used by the terminal device to determine the validity of the TA.
  • the first information may be predefined, or the first information may also be configured by a network device.
  • the first information may be a verification threshold, which is used to indicate the number of TA verification criteria that the terminal device considers when verifying the validity of the TA or the number of TA verification criteria that are considered when the terminal device verifies the validity of the TA. Quantity.
  • the first information may be determined by the network device according to the terminal device's serving cell attributes (such as serving cell radius, etc.) and/or terminal device attributes (such as the mobility of the terminal device, etc.) and sent to the terminal device.
  • the first information may also be determined by the terminal device according to the attributes of the serving cell (such as the radius of the serving cell, etc.) and/or its own attributes (such as the mobility of the terminal device, etc.).
  • the first information may also be a verification threshold pre-configured in the terminal device.
  • the first information may be configured by the network device through high-level signaling.
  • the high-level signaling may be radio resource control (RRC) or media access control control element (MAC CE). ), it may also be downlink control information (DCI) through physical layer signaling, which is not specifically limited in the embodiment of the present application.
  • RRC radio resource control
  • MAC CE media access control control element
  • DCI downlink control information
  • the TA verification criterion is only an exemplary naming, and the TA verification criterion can also be named TA verification validity, verification criterion, verification validity, first criterion, or other names, such as XX, it should be understood that if the XX can also implement the functions implemented by the TA verification criteria in the embodiments of this application, XX can also be understood as the TA verification criteria in the embodiments of this application.
  • the criteria for verifying the validity of the TA are collectively referred to as the TA verification criteria in the embodiments of the present application.
  • the first information may be the first factor ⁇ , 0 ⁇ 1, which is used to indicate that the verification threshold is or That is, the number of TA verification criteria considered when instructing the terminal device to verify the validity of the TA is or N is the number of TA verification criteria indicated by the second information.
  • ⁇ may be determined by the network device according to the terminal device's serving cell attributes (such as serving cell radius, etc.) and/or terminal device attributes (such as terminal device mobility, etc.) and sent to the terminal device, or ⁇ may also be determined by the terminal device according to the attributes of the serving cell (such as the radius of the serving cell, etc.) and/or its own attributes (such as the mobility of the terminal device, etc.).
  • ⁇ may also be a pre-configured verification threshold in the terminal device.
  • the first information may also be a serving cell attribute (such as a serving cell radius, etc.) and/or a terminal device attribute, so that the terminal device can determine the verification threshold according to the first information.
  • the first information may be sent by the network device to the terminal device, or the first information may also be pre-configured by the terminal device, or the first information may also be obtained by the terminal device in other ways.
  • the accuracy of TA validity verification can be effectively improved, and different TA verification scenarios can be adapted. For example, for a cell with weak mobility or a small radius, the verification threshold can be appropriately larger, so that TA is invalid only when multiple verification criteria are established; for users with strong mobility or a cell with a large radius, the verification threshold You can set a smaller value, such as 1, then when any TA verification criterion is determined to be invalid, the TA is invalid.
  • the terminal device determines N TA verification criteria according to the second information.
  • the N is an integer greater than or equal to 1
  • the TA verification criterion includes: the TA verification criterion is established when a set condition is satisfied.
  • TA verification criteria are established can be understood as determining that TA is invalid according to the TA verification criteria.
  • TA verification criteria are established can also be referred to as "TA verification criteria satisfying conditions”.
  • TA verification criteria are not established can be understood as determining that TA is valid according to the TA verification criteria.
  • TA verification criterion is not established can also be referred to as "TA verification criterion does not meet the conditions”.
  • the TA verification criterion is to determine the validity of the TA according to the TA timer, when the TA timer expires, it can be determined that the TA is invalid, that is, the TA verification criterion is established. Otherwise, it can be determined that the TA is valid, that is, the TA verification criterion is not established.
  • the TA verification criterion is to determine the validity of the TA based on the RSRP of the serving cell, when the RSRP of the serving cell is less than the preset threshold, it can be determined that the TA is invalid, that is, the TA verification criterion is established. Otherwise, the TA can be determined to be valid. That is, the TA verification criterion is not established.
  • the TA verification criterion is established can also be understood as determining that the TA is valid according to the TA verification criterion.
  • TA verification criteria are established can also be referred to as "TA verification criteria satisfying conditions”.
  • TA verification criteria are not established can be understood to mean that TA is determined to be invalid according to the TA verification criteria.
  • TA verification criterion is not established can also be referred to as "TA verification criterion does not meet the conditions”.
  • the TA verification criterion is to determine the validity of the TA according to the TA timer, when the TA timer expires, the TA may be determined to be invalid, that is, the TA verification criterion is not established, otherwise, the TA may be determined to be valid, that is, the TA verification criterion is established.
  • the TA verification criterion is to determine the validity of the TA according to the RSRP of the serving cell, when the RSRP of the serving cell is less than the preset threshold, the TA may be determined to be invalid, that is, the TA verification criterion is not established. Otherwise, the TA may be determined to be valid. That is, the TA verification criteria are established.
  • the embodiments of the present application take "TA verification criterion established” to indicate that the TA is determined to be invalid according to the TA verification criterion, and "TA verification criterion is not established” to indicate that the TA is determined to be valid according to the TA verification criterion as an example.
  • the "TA verification criterion is established” means the process of determining the validity of the TA when the TA is determined to be valid according to the TA verification criterion
  • the "TA verification criterion is established” means the process of determining the validity of the terminal device when the TA is determined to be valid according to the TA verification criterion Similar, the difference is that the description about whether the TA verification criterion is established is opposite.
  • TA verification criterion is established means that TA is invalid according to the TA verification criterion, and the terminal device executes A when it determines that the TA verification criterion is established, then the corresponding If the "TA verification criterion is established” means that the TA is determined to be valid according to the TA verification criterion, the terminal device executes A when it determines that a certain TA verification criterion is not established.
  • the second information may be predefined, or the second information may also be configured by the network device.
  • the second information may be N TA verification criteria.
  • the second information may be configured by the network device through high-level signaling, and the high-level signaling may be radio resource control (radio resource control, RRC) or media access control control element (MAC CE). ), it may also be downlink control information (DCI) through physical layer signaling, which is not specifically limited in the embodiment of the present application.
  • RRC radio resource control
  • MAC CE media access control control element
  • DCI downlink control information
  • the second information may also be the first parameter, so that the terminal device can determine N TA verification criteria according to the first parameter and multiple predefined TA verification criteria.
  • the first parameter may be an integer greater than or equal to 1.
  • the second information may indicate that 5 of the multiple TA verification criteria predefined in the terminal device are used as the N TA verification criteria, for example, the 5 TA verification criteria may be the five TA verification criteria with the highest priority among the predetermined multiple TA verification criteria in the terminal device, or they may be multiple predetermined ones in the terminal device The top 5 TA verification criteria in the TA verification criteria.
  • the first parameter can also be greater than 0 and less than or equal to 1.
  • the second information is 0.3 and the terminal device has predefined 10 TA verification criteria as an example, the second information can indicate the 10 predefined TA verification criteria in the terminal device.
  • the 10*0.3 TA verification criteria in the criteria that is, 3 TA verification criteria are used as the N TA verification criteria.
  • these 3 TA verification criteria may be among the 10 predetermined TA verification criteria in the terminal device.
  • the three TA verification criteria with the highest priority may alternatively be the first three TA verification criteria among the ten predetermined TA verification criteria in the terminal device.
  • the second information may also be an identifier or an index, which is used to instruct the terminal device to use multiple TA verification criteria included in the TA verification criteria group corresponding to the representation or index as N TA verification criteria.
  • the second information may also indicate the N TA verification criteria in other forms, which will not be listed here.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria.
  • the terminal device determines the validity of the TA by combining the first information and the N TA verification criteria, and can effectively and reasonably use different verification criteria to design and verify the validity of the TA, thereby improving the effectiveness of the TA verification. Accuracy, in turn, can ensure that the system does not waste power consumption while ensuring that it will not interfere with the system.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, it can be implemented in the following manner: if the terminal device determines all TA verification criteria in the X TA verification criteria If none is true, the terminal device may determine the validity of the TA according to the first information and the Y TA verification criteria. If the terminal device determines that at least one of the X TA verification criteria is established, the terminal device may determine that the TA is invalid.
  • X may be equal to 1, and X TA verification criteria may include determining that TA is invalid when the serving cell changes. Therefore, when the serving cell of the terminal device changes, the terminal device may determine that the TA is invalid. When the serving cell of the terminal device changes, the terminal device needs to switch the cell, and the distance between the terminal device and the network device may change greatly, and the TA will not be retained with the cell switch, so the TA is certain at this time Need to be updated. Therefore, if the serving cell of the terminal device changes, the terminal device can determine that the TA is invalid. If the serving cell of the terminal device has not changed, the terminal device can further determine the validity of the TA according to the Y TA verification criteria and the first information.
  • the terminal device when the terminal device further determines the validity of the TA according to the Y TA verification criteria and the first information, it can be implemented in the following manner: if the terminal device determines at least M TA verification criteria in the Y TA verification criteria If yes, the terminal device may determine that the TA is invalid, the M is an integer greater than 0 and less than or equal to Y, and the M is determined by the terminal device according to the first information. If the terminal device determines that less than M of the Y TA verification criteria are established, the terminal device may determine that the TA is valid.
  • the terminal device determines that M is equal to 5 according to the first information, when at least 5 of the 10 TA verification criteria are established, the terminal device can determine that TA is invalid, otherwise, it can determine TA is valid.
  • the N TA verification criteria may be divided into a first TA verification criteria set and a second TA verification criteria set, and the first TA verification criteria set includes one or more TA verification criteria , The second TA verification criterion set includes one or more TA verification criteria, and neither the TA verification criterion included in the first TA verification criterion set nor the TA verification criterion included in the second TA verification criterion set Same, that is, no verification criterion belongs to both the first TA verification criterion and the second verification criterion.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria
  • the terminal device may determine that the TA is invalid. If the terminal device determines that all TA verification criteria in the first TA verification criterion set are invalid, the terminal device may determine the validity of the TA according to the second TA verification criterion set and the first information. Sex. Wherein, the terminal device may determine the validity of the TA according to the second TA verification criterion set and the first information, and may refer to the terminal device to further determine the TA according to the Y TA verification criteria and the first information. The validity process will not be repeated here.
  • the terminal device determines the validity of the TA according to the first information and the second TA verification criterion set
  • the terminal device may determine that the TA is invalid, the m is an integer greater than 0, and the m is determined by the terminal device according to the first information.
  • the terminal device may determine that the TA is valid, the m is an integer greater than 0, and the m is the terminal Determined by the device according to the first information.
  • the N TA verification criteria are divided into two categories according to their priority or the degree of correlation with TA effectiveness.
  • One type of verification criteria is strongly related to TA effectiveness (ie, X TA verification criteria or first TA verification criteria set), another type of verification criteria has a weak correlation with TA effectiveness (ie Y TA verification criteria or the second TA verification criteria set), by classifying N verification criteria, more accurate evaluation can be achieved.
  • the validity of TA For example, if only one of the strong correlation verification criteria of a type of TA is established, then the TA is invalid. Only when the strong correlation verification criteria of the first type are not established, only one or TA is invalid when multiple is established.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, it may also be implemented in the following manner: if the terminal device can determine When at least S of the N TA verification criteria are established, the terminal device determines that the TA is invalid, 0 ⁇ S ⁇ N, and the S is an integer determined by the terminal device according to the first information . If the terminal device can determine that less than S of the N TA verification criteria are established, the terminal device determines that the TA is valid.
  • the terminal device determines that S is equal to 3 according to the first information, when at least 3 of the 8 TA verification criteria are established, the terminal device can determine that TA is invalid, otherwise, it can determine TA is valid.
  • the terminal device determines the validity of the TA according to the first information and the N TA verification criteria, it can also be implemented in the following manner: if the terminal device determines R When at least one of the TA verification criteria is established, the terminal device determines that the TA is invalid, and the R TA verification criteria are determined by the terminal device according to the N TA verification criteria and the first rule, 0 ⁇ R ⁇ N, the R is an integer determined by the terminal device according to the first information, and the first rule is predefined or configured by the network device. If the terminal device determines that all of the R TA verification criteria are not established, the terminal device determines that the TA is valid.
  • the first rule may be to determine the R TA verification criteria according to the priority of the N TA verification criteria.
  • the first rule may be to determine the R TA verification criteria according to the priority of the N TA verification criteria in descending order, or the first rule may also be based on the N TA verification criteria.
  • the priority of the TA verification criteria determines the R TA verification criteria in descending order. It should be noted that the priority of different TA verification criteria can be the same or different.
  • the priority of TA validity is determined according to the serving cell change> the priority of TA validity is determined according to the TA timer ⁇ determined according to the RSRP change of the serving cell Priority of TA effectiveness.
  • the priority of the TA verification criterion may be configured by the network device through a higher layer, or may be specified by the protocol, or may be predefined by the terminal device, which is not specifically limited here.
  • the terminal device determines the verification threshold R according to the first information, and sorts the N TA verification criteria according to the priority from high to low, and selects the first R TA verification criteria. If at least one of the R TA verification criteria is established, the terminal device can determine that the TA is invalid, otherwise, the terminal device can determine that the TA is valid. Or, if all the R TA verification criteria are established, the terminal device can determine that the TA is invalid, otherwise, the terminal device can determine that the TA is valid.
  • the first rule may also be to determine the R TA verification criteria according to the correlation of the N TA verification criteria, where the correlation may refer to the correlation between the TA verification criteria and the TA Wait.
  • the first rule may be that the R TA verification criteria are determined in descending order of relevance of the N TA verification criteria, or the first rule may be that the R TA verification criteria are determined in accordance with the N TA verification criteria. The relevance of the verification criteria determines the R TA verification criteria in descending order. It should be noted that the correlation of different TA verification criteria can be the same or different.
  • the correlation of TA validity is determined according to the change of serving cell> the correlation of TA validity is determined according to TA timer ⁇ determined by the change of RSRP of serving cell Correlation of TA effectiveness.
  • the priority of the TA verification criterion may be configured by the network device through a higher layer, or may be specified by the protocol, or may be predefined by the terminal device, which is not specifically limited here.
  • the efficiency and accuracy of the TA effectiveness verification can be improved.
  • the RSRP of the serving cell Since the RSRP of the serving cell has many influencing factors, such as shadow, multipath, etc., it is affected by factors such as shadow and multipath. RSRP changes greatly, but in fact, TA changes very little, and TA is still effective. In addition, the initial stage of RSRP measurement has poor stability and poor unreliability. Therefore, errors are likely to occur when determining the validity of TA based on changes in the RSRP of the serving cell.
  • the N TA verification criteria may include a first TA verification criterion, and the first TA verification criterion includes: if the first timer does not expire, the first TA verification criterion is invalid ; If the first timer expires and the first RSRP value is less than the set threshold, the first TA verification criterion is not established; if the first timer expires and the first RSRP value is greater than or equal to the set threshold, the The first TA verification criterion is established, as shown in Figure 4.
  • the first RSRP value may be the difference between two measured RSRP values.
  • the first RSRP value may be the difference between the RSRP value of the serving cell when the TA was acquired last time and the current RSRP value of the serving cell, or
  • the first RSRP value may also be the difference between the average value of the RSRP value of the serving cell measured in a period of time and the current RSRP value of the serving cell, etc., which is not specifically limited in the embodiment of the present application.
  • the RSRP value can be a linear value (linear value) or a decibel (dB) value.
  • the first timer may be sent by the network device to the terminal device, may also be specified by the protocol, or may also be determined by the terminal device according to its own properties (such as mobility).
  • the first RSRP value may not be considered when verifying the validity of the TA.
  • the influence of the first RSRP value on the TA validity is considered. This can effectively eliminate the influence and misjudgment of the validity of the TA during the initial measurement inaccuracy by RSRP, and improve the stability and accuracy of the TA verification, thereby improving system performance, reducing unnecessary TA update operations, and saving user power consumption.
  • the N TA verification criteria may include a fifth TA verification criterion
  • the fifth TA verification criterion includes: if before the first moment, the first TA verification criterion is not established; if after the first moment and If the first RSRP value is less than the set threshold, the first TA verification criterion is not established; if after the first moment and the first RSRP value is greater than or equal to the set threshold, the first TA verification criterion is established.
  • the N TA verification criteria may further include a third TA verification criterion, and the third TA verification criterion includes: if the third timer does not expire, the third TA verification criterion does not hold; if the third timer expires and the third 3. If the RSRP value is greater than the set threshold, the third TA verification criterion is not established; if the third timer expires and the third RSRP value is less than or equal to the set threshold, the third TA verification criterion is established.
  • the third timer may be the same as the first timer or different from the first timer.
  • the third RSRP value may be a measured RSRP value.
  • the third RSRP value may be the current RSRP value of the serving cell, or the third RSRP value may also be the average value of the RSRP values of the serving cell measured in a period of time, etc.
  • the RSRP value can be a linear value (linear value) or a decibel (dB) value.
  • TA timer has certain inaccuracy. For example, for a terminal device with a small position change, although the TA timer has expired, the user's position change is small, which has little impact on the TA, so the TA is still valid. Therefore, errors are prone to occur when determining the validity of the TA according to the TA timer.
  • the N TA verification criteria may include a second TA verification criterion
  • the second TA verification criterion includes: if the second RSRP value is less than the first threshold, the second TA verification The criterion is not established; if the second RSRP value is greater than or equal to the first threshold and the second timer does not expire, the second TA verification criterion is not established; if the second RSRP value is greater than or equal to the first Threshold, and the second timer expires, the second TA verification criterion is established.
  • the second timer may be used to record the effective time of the TA.
  • the second timer may be the TA timer in the connected state, or the time alignment timer (Time Alignment Timer for idle mode) in the idle state.
  • the second RSRP value may be the difference between two measured RSRP values.
  • the second RSRP value may be the difference between the RSRP value of the serving cell and the current RSRP value of the serving cell when the TA was last acquired, or the second RSRP value
  • the RSRP value may also be the difference between the average value of the RSRP value of the serving cell measured in a period of time and the current RSRP value of the serving cell, etc., which is not specifically limited in the embodiment of the present application.
  • the RSRP value can be a linear value (linear value) or a decibel (dB) value.
  • the terminal device may not start the second timer.
  • the terminal device restarts the second timer.
  • the N TA verification criteria may further include a fourth TA verification criterion, and the fourth TA verification criterion includes: if the fourth RSRP value is greater than a second threshold, the fourth TA verification criterion is not established; the fourth RSRP value Is less than or equal to the second threshold and the second timer does not expire, the fourth TA verification criterion is not established; if the fourth RSRP value is less than or equal to the second threshold and the second timer expires, The fourth TA verification criterion is established.
  • the fourth RSRP value may be a measured RSRP value.
  • the fourth RSRP value may be the current RSRP value of the serving cell, or the fourth RSRP value may also be the average value of the RSRP values of the serving cell measured in a period of time, etc.
  • the RSRP value can be a linear value (linear value) or a decibel (dB) value.
  • the terminal device may not start the second timer.
  • the terminal device restarts the second timer.
  • the second timer may not be considered when verifying the validity of the TA.
  • the second RSRP value is large (that is, when the second RSRP value is greater than or equal to the first threshold)
  • the second timer can be considered when verifying the validity of the TA.
  • the validity misjudgment caused by the TA timer can be effectively eliminated, and the stability and accuracy of the TA validity verification can be improved. Thereby, the system performance can be improved, and unnecessary operations of updating TA can be reduced, and user power consumption can be saved.
  • the terminal device can transmit uplink data through early data transmission (EDT).
  • EDT early data transmission
  • This method can be understood as when the terminal device determines that the TA is invalid, it can be in the random access process , Allow the terminal device to send uplink data after a downlink data transmission (Allows one uplink data transmission optionally followed by one downlink data transmission during the random access procedure), or this method can also be understood as when the terminal device determines that the TA is invalid,
  • the user uplink data can be carried in the third message in the random access process.
  • the terminal device can also initiate a random access procedure.
  • the terminal device may also obtain a new TA in a two-step random access channel (RACH) manner.
  • RACH random access channel
  • the terminal device may also send a first message to the network device when determining that the TA is invalid, the first message is used to notify the network device of one or more of the following: TA is invalid; TA is updated; the first resource is released, The first resource is a pre-configured transmission resource.
  • FIG. 5 is a flowchart of a communication method provided by this application.
  • the method can be applied to the network equipment in the communication system shown in FIG. 1, and the method includes:
  • the network device determines first information and second information, where the first information is used by the terminal device to determine the validity of the TA, and the second information is used by the terminal device to determine N TA verification criteria, and the N is an integer greater than or equal to 1.
  • first information and the second information please refer to the related descriptions of the first information and the second information in the method shown in FIG. 3, which will not be repeated here.
  • the network device sends the first information and the second information to the terminal device.
  • the network device sends the first information and the second information to the terminal device, so that the terminal device can determine the validity of the TA by combining the first information and N TA verification criteria, so that the terminal device can be effectively and reasonably used jointly
  • Different verification criteria are used to design and verify the effectiveness of TA, thereby improving the accuracy of TA effectiveness verification, which can ensure that the system does not waste power consumption while ensuring that it will not interfere with the system.
  • the second information may also be predefined by the terminal device, and the network device may also only send the first information.
  • the first information is used to enable the UE to determine the validity of the TA according to the first information and the verification criterion.
  • the network device may also send a first rule to the terminal device, where the first rule is to determine the R TA verification criteria in descending order of priority of the N TA verification criteria.
  • the first rule may be the related description of the first rule in the method shown in FIG. 3, which will not be repeated here.
  • the embodiment of the application provides a communication device, which is specifically used to implement the function of the terminal device in the embodiment shown in FIG. 3.
  • the device may be the terminal device itself or in the terminal device.
  • the chip or chipset or part of the chip used to perform the related method functions.
  • the structure of the communication device may be as shown in FIG. 6, including a storage unit 601 and a processing unit 602. Among them, the storage unit 601 is used to store a computer program.
  • the processing unit 602 is configured to call the computer program stored in the storage unit 601 and execute: determine first information and second information, the first information is used by the communication device to determine the validity of the TA;
  • the information determines N TA verification criteria, where N is an integer greater than or equal to 1, and the TA verification criteria include: the TA verification criteria are established when the set conditions are met; according to the first information and the N TA verification criteria determine the effectiveness of TA.
  • the processing unit 602 When determining the validity of the TA according to the first information and the N TA verification criteria, it may be specifically used to: if the processing unit 602 determines that all TA verification criteria in the X TA verification criteria are not established, Then determine the validity of the TA according to the first information and the Y TA verification criteria; if the processing unit 602 determines that at least one TA verification criterion in the X TA verification criteria is established, it determines the TA is invalid.
  • the processing unit 602 when determining the validity of the TA according to the first information and the Y TA verification criteria, is specifically configured to: if the processing unit 602 determines that the Y TA verifications In the criteria, at least M TA verification criteria are established, it is determined that the TA is invalid, the M is an integer greater than 0 and less than or equal to Y, and the M is determined by the processing unit 602 according to the first information.
  • the processing unit 602 when determining the validity of the TA according to the first information and the N TA verification criteria, may be specifically configured to: if the processing unit 602 determines When at least S of the N TA verification criteria are established, it is determined that the TA is invalid, 0 ⁇ S ⁇ N, and the S is an integer determined by the processing unit 602 according to the first information.
  • the processing unit 602 when determining the validity of the TA according to the first information and the N TA verification criteria, may also be specifically configured to: if the processing unit 602 determines that at least one of the R TA verification criteria is When one TA verification criterion is established, it is determined that the TA is invalid.
  • the R TA verification criteria are determined by the processing unit 602 according to the N TA verification criteria and the first rule, 0 ⁇ R ⁇ N, and the R It is an integer determined by the processing unit 602 according to the first information, and the first rule is predefined or configured by a network device.
  • the first rule is to determine the R TA verification criteria in a descending order of priority of the N TA verification criteria.
  • the N TA verification criteria include a first TA verification criterion
  • the first TA verification criterion includes: if the first timer does not expire, the first TA verification criterion is not established; If the timer expires and the first RSRP value is less than the set threshold, the first TA verification criterion is not established; if the first timer expires and the first RSRP value is greater than or equal to the set threshold, the first TA verifies The guidelines are established.
  • the N TA verification criteria include a second TA verification criterion
  • the second TA verification criterion includes: if the second RSRP value is less than the first threshold, the second TA verification criterion is not established; if If the second RSRP value is greater than or equal to the first threshold, and the second timer does not expire, the second TA verification criterion is not established; if the second RSRP value is greater than or equal to the first threshold, and the first 2. The timer expires, and the second TA verification criterion is established.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the communication device may be as shown in FIG. 7, and the processing unit 602 may be the processor 702.
  • the processor 702 may be a central processing unit (CPU), or a digital processing module, and so on.
  • the storage unit 601 may be a memory 703 for storing a program executed by the processor 702.
  • the memory 703 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory, such as random access memory (random access memory). -access memory, RAM).
  • the memory 703 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the processor 702 is configured to execute the program code stored in the memory 703, and is specifically configured to execute the actions of the above-mentioned processing unit 602, which will not be repeated in this application.
  • the communication device further includes: a communication interface 701.
  • the communication interface 701 may be a transceiver, an interface circuit such as a transceiver circuit, etc., or a transceiver chip.
  • the embodiment of the present application does not limit the specific connection medium between the communication interface 701, the processor 702, and the memory 703.
  • the memory 703, the processor 702, and the communication interface 701 are connected by a bus 704 in FIG. 7.
  • the bus is represented by a thick line in FIG. 7.
  • the connection modes between other components are only for schematic illustration. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.
  • the embodiment of the present application provides a communication device, which is specifically used to implement the function of the network device in the embodiment shown in FIG. 5.
  • the device can be the network device itself or in the network device.
  • the structure of the communication device may be as shown in FIG. 8, including a processing unit 801 and a sending unit 802.
  • the processing unit 801 is configured to determine first information and second information, where the first information is used by the terminal device to determine the validity of the TA, and the second information is used for the terminal device to determine N TA verifications
  • the criterion is that the N is an integer greater than or equal to 1; the sending unit 802 is configured to send the first information and the second information to the terminal device.
  • the processing unit 801 may also only determine the first information, and the sending unit 802 may only send the first information to the terminal device.
  • the sending unit 802 may be further configured to send a first rule to the terminal device, where the first rule is to determine the R TAs in descending order of priority of the N TA verification criteria Verification criteria.
  • the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of the present application may be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • the communication device may be as shown in FIG. 9, and the processing unit 801 may be the processor 902.
  • the processor 902 may be a CPU, or a digital processing module, and so on.
  • the sending unit 802 may be a communication interface 901, and the communication interface 901 may be a transceiver, an interface circuit such as a transceiver circuit, etc., or a transceiver chip or the like.
  • the network device further includes: a memory 903, configured to store a program executed by the processor 801.
  • the memory 903 may be a non-volatile memory, such as HDD or SSD, or may also be a volatile memory, such as RAM.
  • the memory 903 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the processor 902 is configured to execute the program code stored in the memory 903, and is specifically configured to execute the actions of the aforementioned processing unit 801, which will not be repeated in this application.
  • the embodiment of the present application does not limit the specific connection medium between the communication interface 901, the processor 902, and the memory 903.
  • the memory 903, the processor 902, and the communication interface 901 are connected by a bus 904 in FIG. 9.
  • the bus is represented by a thick line in FIG. 9, and the connection mode between other components is only for schematic illustration. , Is not limited.
  • the bus can be divided into address bus, data bus, control bus, etc. For ease of representation, only one thick line is used in FIG. 9, but it does not mean that there is only one bus or one type of bus.
  • the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

Landscapes

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

Abstract

一种通信方法及设备，用于解决现有技术中UE验证TA有效性的方法准确性较低的问题。该方法包括：所述终端设备确定第一信息以及第二信息，所述第一信息用于所述终端设备确定TA的有效性。所述终端设备根据所述第二信息确定N个TA验证准则，并根据所述第一信息和所述N个TA验证准则确定TA的有效性。其中，所述N为大于或等于1的整数，所述TA验证准则包括：满足设定的条件时所述TA验证准则成立。

Description

一种通信方法及设备 技术领域
本申请涉及通信技术领域，尤其涉及一种通信方及设备。
背景技术
同一小区内，不同用户设备(userequipment，UE)位置不同，UE发送的上行数据到达基站(evolved Node-B，eNB)的时间可能不同，这会造成用户间的干扰。因此，eNB通过估计UE的上行定时，并根据估计的上行定时向UE发送时间提前量(Timing Advance，TA)，UE根据TA调整上行传输时间，使小区内各个UE发送的上行数据到达eNB的时间相同。
上行免调度传输的过程为：当UE有上行数据需要发送时，不需要基站对UE进行动态的上行调度，UE在预先配置的传输资源上按照预先规定的发送方式进行上行传输。上行免调度传输过程中要求UE在进行上行免调度传输前必须具有有效的TA。
虽然现有技术中给出了TA有效性的相关的几种属性(即TA验证准则)，但是目前并没有具体方案解决如何利用这些属性来确定TA的有效性。
发明内容
本申请实施例提供了一种通信方法及设备，用于解决现有技术中如何结合多个TA验证准则确定TA的有效性的问题。
第一方面，本申请实施例提供了一种通信方法，包括：所述终端设备确定第一信息以及第二信息，所述第一信息用于所述终端设备确定TA的有效性。所述终端设备根据所述第二信息确定N个TA验证准则，并根据所述第一信息和所述N个TA验证准则确定TA的有效性。其中，所述N为大于或等于1的整数，所述TA验证准则包括：满足设定的条件时所述TA验证准则成立。本申请实施例中终端设备通过结合第一信息以及N个TA验证准则确定TA有效性，可以有效、合理的联合使用不同的验证准则来验证TA的有效性，从而可以提高TA有效性验证的准确率，可以避免不必要的TA更新步骤，进而可以在保证系统不浪费功耗的同时又可以保证不会对系统产生干扰。
在一种可能的设计中，所述第一信息可以为预定义的，或者，所述第一信息也可以为网络设备配置的。
在一种可能的设计中，第一信息可以是网络设备通过高层信令配置的，高层信令可以为无线资源控制信令(radio resource control，RRC)或媒体接入控制控制单元(media access control control element，MACCE)，也可以是通过物理层信令如下行控制信息(downlink control information，DCI)。
在一种可能的设计中，所述第二信息可以为预定义的，或者，所述第二信息也可以为所述网络设备配置的。
在一种可能的设计中，所述N个TA验证准则包括X个TA验证准则和Y个TA验证准则，X大于等于1，Y大于等于0，且X+Y＝N，所述终端设备根据所述第一信息和所述N个TA验证准则确定TA的有效性时，若所述终端设备确定所述X个TA验证准则中的所 有TA验证准则均不成立，则所述终端设备可以根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性。若所述终端设备确定所述X个TA验证准则中至少有一个TA验证准则成立，则所述终端设备可以确定所述TA无效。上述设计中，当X个验证准则中任一TA验证准则成立时，可以确定终端设备发生了较大的移动，如服务小区发生变化等，这种情况下可以确定TA无效，从而终端设备可以快速确定TA的有效。当X个验证准则中所有TA验证准则均不成立时，可以表明终端设备没有产生较大的移动，从而终端设备可以进一步结合Y个TA验证准则确定TA的有效性，通过这种方式可以根据不同场景设定不同的验证方案，从而可以提高TA验证的速度以及准确性。此外，将N个TA验证准则根据优先级或者与TA有效性的相关程度分为两类，一类验证准则是与TA有效性强相关的(即X个TA验证准则)，另外一类验证准则与TA有效性的相关性较弱的(即Y个TA验证准则)，通过将N个验证准则分类，可以更准确的评估TA的有效性，如强相关的X个TA验证准则中只要有一个成立，那么说明TA无效，只有当强相关的一类验证准则均不成立时，弱相关的Y个TA验证准则中只有在一个或多个成立时TA才无效。
在一种可能的设计中，所述终端设备根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性时，若所述终端设备确定所述Y个TA验证准则中至少M个TA验证准则成立，所述终端设备可以确定所述TA无效，所述M为大于0，且小于等于Y的整数，所述M为所述终端设备根据所述第一信息确定的。上述设计中，通过根据第一信息确定门限值M，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
在一种可能的设计中，所述终端设备根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性时，若所述终端设备确定所述Y个TA验证准则中小于M个TA验证准则成立，所述终端设备可以确定所述TA有效，所述M为大于0，且小于等于Y的整数，所述M为所述终端设备根据所述第一信息确定的。上述设计中，通过根据第一信息确定门限值M，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
在一种可能的设计中，所述N个TA验证准则可以包括第一TA验证准则集合和第二TA验证准则集合，所述第一TA验证准则集合中包括一个或多个TA验证准则，所述第二TA验证准则集合中包括一个或多个TA验证准则，所述第一TA验证准则集合中包括的TA验证准则和所述第二TA验证准则集合中包括的TA验证准则均不相同，即没有一个验证准则同时属于所述第一TA验证准则和所述第二验证准则。所述终端设备根据所述第一信息和所述N个TA验证准则确定TA的有效性时，若所述终端设备确定所述第一TA验证准则集合中至少有一个TA验证准则成立，则所述终端设备可以确定所述TA无效。上述设计中，通过将N个TA验证准则根据优先级或者与TA有效性的相关程度分为两类，一类验证准则是与TA有效性强相关的(即第一TA验证准则集合)，另外一类验证准则与TA有效性的相关性较弱的(即第二TA验证准则集合)，通过将N个验证准则分类，可以更准确的评估TA的有效性，如强相关的第一TA验证准则集合中只要有一个成立，那么说明TA无效，只有当强相关的第一TA验证准则集合均不成立时，弱相关的第二TA验证准则集合中只有在一个或多个成立时TA才无效。在一种可能的设计中，所述终端设备根据所述第一信息和所述第二TA验证准则集合确定所述TA的有效性时，若所述终端设备确定所述第二TA验证准则集合中至少M个TA验证准则成立，所述终端设备可以确定所述 TA无效，所述m为大于0的整数，所述m为所述终端设备根据所述第一信息确定的。上述设计中，通过根据第一信息确定门限值m，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
在一种可能的设计中，所述终端设备根据所述第一信息和所述第二TA验证准则集合确定所述TA的有效性时，若所述终端设备确定所述第二TA验证准则集合中小于m个TA验证准则成立，所述终端设备可以确定所述TA有效，所述m为大于0的整数，所述m为所述终端设备根据所述第一信息确定的。上述设计中，通过根据第一信息确定门限值m，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
在一种可能的设计中，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，若所述终端设备可以确定所述N个TA验证准则中至少S个TA验证准则成立时，所述终端设备确定所述TA无效，0＜S≤N，所述S为所述终端设备根据所述第一信息确定的整数。上述设计中，通过根据第一信息确定门限值S，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
在一种可能的设计中，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，若所述终端设备可以确定所述N个TA验证准则中小于S个TA验证准则成立时，所述终端设备确定所述TA有效。上述设计中，通过根据第一信息确定门限值S，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
在一种可能的设计中，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，若所述终端设备确定R个TA验证准则中至少有1个TA验证准则成立时，所述终端设备确定所述TA无效，所述R个TA验证准则为所述终端设备根据N个TA验证准则及第一规则确定的，0＜R≤N，所述R为所述终端设备根据所述第一信息确定的整数，所述第一规则为预定义的或网络设备配置的。上述设计中，通过将N个TA验证准则以及第一规则确定R个TA验证准则，然后联合R个TA验证准则验证TA的有效性，可以提高TA有效性验证的效率以及准确性。
在一种可能的设计中，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，若所述终端设备确定R个TA验证准则中所有TA验证准则均不成立时，所述终端设备确定所述TA有效，所述R个TA验证准则为所述终端设备根据N个TA验证准则及第一规则确定的，0＜R≤N，所述R为所述终端设备根据所述第一信息确定的整数，所述第一规则为预定义的或网络设备配置的。上述设计中，通过将N个TA验证准则以及第一规则确定R个TA验证准则，然后联合R个TA验证准则验证TA的有效性，可以提高TA有效性验证的效率以及准确性。
在一种可能的设计中，所述第一规则可以为按照所述N个TA验证准则的优先级确定所述R个TA验证准则。如，所述第一规则可以为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则，或者，所述第一规则也可以为按照所述N个TA验证准则的优先级由低到高的顺序确定所述R个TA验证准则。上述设计中，由于终端设备的TA发生变化时，优先级越高的TA验证准则虽采用的参数的变化越大，因此通过结合N个TA验证准则的优先级确定R个TA验证准则，在根据R个TA验证准则验证TA 有效性时可以提高TA有效性验证的效率以及准确性。在一种可能的设计中，所述第一规则可以为按照所述N个TA验证准则的相关性确定所述R个TA验证准则，其中，相关性可以指TA验证准则与TA的相关性等。如，所述第一规则可以为按照所述N个TA验证准则的相关性由高到低的顺序确定所述R个TA验证准则，或者，所述第一规则可以为按照所述N个TA验证准则的相关性由低到高的顺序确定所述R个TA验证准则。
在一种可能的设计中，所述N个TA验证准则可以包括第一TA验证准则，所述第一TA验证准则包括：若第一定时器未超时，则所述第一TA验证准则不成立；若第一定时器超时且第一参考信号接收功率(Reference Signal Receiving Power，RSRP)值小于设定的阈值，所述第一TA验证准则不成立；若第一定时器超时且所述第一RSRP值大于或等于设定的阈值，所述第一TA验证准则成立。上述设计中，由于RSRP的影响因素很多(如阴影、多径等)，因此有些场景下RSRP变化很大但其实TA变化很小，TA仍然有效。此外，RSRP测量的初始阶段，稳定性差，不可靠。因此，第一定时器过期之前，由于RSRP测量时间段存在不准确性，变化较大，因此可以不考虑RSRP变化，当第一定时器过期的时候再考虑RSRP对TA有效性的影响。通过上述设计，可以有效消除RSRP在初始测量不准确阶段对于TA有效性的影响及误判，提升了TA验证的稳定及准确性，从而可以提升系统性能减少不必要的更新TA的操作，节省用户功耗。
在一种可能的设计中，所述第一RSRP值可以两个测量的RSRP值的差值，如第一RSRP值可以为最近一次获取TA时服务小区的RSRP值与所述服务小区当前的RSRP值之间的差值，或者第一RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值与所述服务小区当前的RSRP值之间的差值等等，其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。
在一种可能的设计中，所述N个TA验证准则可以包括第二TA验证准则，所述第二TA验证准则包括：若第二RSRP值小于第一阈值，则所述第二TA验证准则不成立；若所述第二RSRP值大于或等于所述第一阈值，且第二定时器不超时，所述第二TA验证准则不成立；若所述第二RSRP值大于或等于所述第一阈值，且第二定时器超时，所述第二TA验证准则成立。上述设计中，由于第二定时器，即TA Timer(也可称为空闲态时间对齐定时器，Time Alignment Timer for idle mode)是存在一定不准确性的。例如对于位置变化小的用户而言，TA Timer虽然过期了，但是用户的位置变化很小，对TA影响很小，因此TA仍然可用，因此在RSRP值较小时可以不考虑第二定时器对TA有效性的影响，在RSRP值较大时再考虑第二定时器对TA有效性的影响。通过上述设计，可以有效消除TA timer带来的有效性误判，提升了TA有效性验证的稳定及准确性。从而可以提升系统性能减少不必要的更新TA的操作，节省用户功耗。
在一种可能的设计中，所述第二RSRP值可以为最近一次获取TA时服务小区的RSRP值与所述服务小区当前的RSRP值之间的差值。
在一种可能的设计中，所述第二RSRP值可以两个测量的RSRP值的差值，如第二RSRP值可以为最近一次获取TA时服务小区的RSRP值与所述服务小区当前的RSRP值之间的差值，或者第二RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值与所述服务小区当前的RSRP值之间的差值等等，其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。在一种可能的设计中，所述N个TA验证准则可以包括第三TA验证准则，所述第三TA验证准则包括：若第三定时器未超时，所述第三TA验证准则不成 立；若第三定时器超时且第三RSRP值大于设定的阈值，所述第三TA验证准则不成立；若第三定时器超时且所述第三RSRP值小于或等于设定的阈值，所述第三TA验证准则成立。
在一种可能的设计中，第三RSRP值可以为测量的RSRP值，如第三RSRP值可以为所述服务小区当前的RSRP值，或者第三RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值等等，其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。
在一种可能的设计中，所述N个TA验证准则可以包括第四TA验证准则，所述第四TA验证准则包括：若第四RSRP值大于第二阈值，所述第四TA验证准则不成立；所述第四RSRP值小于或等于所述第二阈值，且第二定时器不超时，所述第四TA验证准则不成立；若所述第四RSRP值小于或等于所述第二阈值，且第二定时器超时，所述第四TA验证准则成立。
在一种可能的设计中，第四RSRP值可以为测量的RSRP值，如第四RSRP值可以为所述服务小区当前的RSRP值，或者第四RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值等等，其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。
第二方面，本申请实施例提供了一种通信方法，包括：网络设备确定第一信息和第二信息，其中，所述第一信息用于终端设备确定TA的有效性，所述第二信息用于所述终端设备确定N个TA验证准则，所述N为大于或等于1的整数。所述网络设备向所述终端设备发送所述第一信息和所述第二信息。本申请实施例中网络设备通过向终端设备发送第一信息以及第二信息，使得终端设备可以通过结合第一信息以及N个TA验证准则确定TA有效性，从而终端设备可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，进而可以提高TA有效性验证的准确率，可以在保证系统的不浪费功耗同时又可以保证不会对系统产生干扰。
在一种可能的设计中，网络设备也可以只发送第一信息，该第一信息用于使得UE根据第一信息和多个验证准则确定TA的有效性。上述设计中，第二信息可以为终端设备预配置的。
在一种可能的设计中，网络设备也可以只发送第二信息。上述设计中，第一信息可以为终端设备预配置的。
在一种可能的设计中，所述网络设备还可以向所述终端设备发送第一规则，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。上述设计中，由于终端设备的TA发生变化时，优先级越高的TA验证准则虽采用的参数的变化越大，因此通过结合N个TA验证准则的优先级确定R个TA验证准则，在根据R个TA验证准则验证TA有效性时可以提高TA有效性验证的效率以及准确性。
在一种可能的设计中，所述第一规则可以为按照所述N个TA验证准则的优先级确定所述R个TA验证准则。如，所述第一规则可以为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则，或者，所述第一规则也可以为按照所述N个TA验证准则的优先级由低到高的顺序确定所述R个TA验证准则。上述设计中，由于终端设备的TA发生变化时，优先级越高的TA验证准则虽采用的参数的变化越大，因此通过结合N个TA验证准则的优先级确定R个TA验证准则，在根据R个TA验证准则验证TA 有效性时可以提高TA有效性验证的效率以及准确性。
在一种可能的设计中，所述第一规则可以为按照所述N个TA验证准则的相关性确定所述R个TA验证准则，其中，相关性可以指TA验证准则与TA的相关性等。如，所述第一规则可以为按照所述N个TA验证准则的相关性由高到低的顺序确定所述R个TA验证准则，或者，所述第一规则可以为按照所述N个TA验证准则的相关性由低到高的顺序确定所述R个TA验证准则。
第三方面，本申请提供一种装置，该装置可以是终端设备、或者网络设备，还可以是芯片。该装置具有实现上述第一方面、或者第二方面中任一实施例的功能。该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块。
第四方面，提供了一种装置，包括：处理器、通信接口和存储器。通信接口用于该装置与其他装置之间传输信息、和/或消息、和/或数据。该存储器用于存储计算机执行指令，当该装置运行时，该处理器执行该存储器存储的该计算机执行指令，以使该装置执行如上述第一方面或第一方面中任一所述的通信方法、或者上述第二方面或第二方面中任一所述的通信方法。
第五方面，本申请还提供一种系统，该系统包括上述第一方面的任一实施例中的终端设备、上述第二方面的任一实施例中的网络设备。
第六方面，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
第七方面，本申请还提供一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
附图说明
图1为本申请实施例提供的一种通信系统的架构示意图；
图2为本申请实施例提供的一种CP示意图；
图3为本申请实施例提供的一种通信方法的流程示意图；
图4为本申请实施例提供的一种第一TA验证准则的示意图；
图5为本申请实施例提供的一种通信方法的流程示意图；
图6为本申请实施例提供的一种通信装置的结构示意图；
图7为本申请实施例提供的一种通信装置的结构示意图；
图8为本申请实施例提供的一种通信装置的结构示意图；
图9为本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
下面将结合附图对本申请实施例作进一步地详细描述。
本申请提供的通信方法可以应用于各类通信系统中，例如，可以是物联网(internet of things，IoT)、窄带物联网(narrow band internet of things，NB-IoT)、长期演进(long term evolution，LTE)，也可以是第五代(5G)通信系统，还可以是LTE与5G混合架构、也可以是5G新无线(newradio，NR)系统、全球移动通信系统(global system for mobile  communication，GSM)，移动通信系统(universal mobile telecommunications system，UMTS)，码分多址接入(code division multiple access，CDMA)系统，以及未来通信发展中出现的新的通信系统等。只要通信系统中存在一个实体需要发送传输方向指示信息，另一个实体需要接收该指示信息，并根据该指示信息确定一定时间内的传输方向，均可以采用本申请实施例提供的通信方法。
本申请实施例中涉及的终端设备，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。终端设备也可以是连接到无线调制解调器的其他处理设备。终端设备可以通过无线接入网(radio access network，RAN)与一个或多个核心网进行通信。终端设备也可以称为无线终端、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户设备(user device)、或用户装备(user equipment)等等。终端设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，终端设备还可以是个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。常见的终端设备例如包括：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，例如智能手表、智能手环、计步器等，但本申请实施例不限于此。
本申请实施例中所涉及的网络设备，可以用于将收到的空中帧与网络协议(internet protocol，IP)分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可以包括IP网络等。网络设备还可以协调对空中接口的属性管理。例如，网络设备可以是全球移动通信系统(global system for mobilecommunication，GSM)或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)中的基站(NodeB)，还可以是LTE中的演进型基站(evolutional Node B，eNB或e-NodeB)，还可以是新无线控制器(new radio controller，NR controller)，可以是5G系统中的gNode B(gNB)，可以是集中式网元(centralized unit)，可以是新无线基站，可以是射频拉远模块，可以是微基站，可以是中继(relay)，可以是分布式网元(distributed unit)，可以是接收点(transmission reception point，TRP)或传输点(transmission point，TP)或者任何其它无线接入设备，但本申请实施例不限于此。网络设备可以覆盖1个或多个小区。
参阅图1所示，为本申请实施例提供的一种通信系统，该通信系统包括网络设备和六个终端设备，即UE1～UE6。在该通信系统中，UE1～UE6可以发送上行数据给网络设备，网络设备可以接收UE1～UE6发送的上行数据。此外，UE4～UE6也可以组成一个子通信系统。网络设备可以发送下行信息给UE1、UE2、UE3、UE5，UE5可以基于设备到设备(device-to-device，D2D)技术发送下行信息给UE4、UE6。图1仅是一种示意图，并不对通信系统的类型，以及通信系统内包括的设备的数量、类型等进行具体限定。
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。
在通信系统中，UE可能处于三种状态：空闲(idle)态、非激活态(inactive)和连接态(connected)。connected态UE可以通过基站动态调度与基站进行通信，传输数据，而对于idle态UE而言，其不能通过基站动态调度来传输数据，需要首先进行随机接入，建立RRC连接以后才能够进行数据的传输，或者是在随机接入过程中的消息3中携带少量的上行数据。Inactive态可以看做是这两种状态的一种中间状态，UE和核心网保留了connected态时无线资源控制(radio resource control，RRC)消息的上下文，因此相比于idle态可以以更快速度的进入connected态。根据目前LTE协议的规定，在UE由RRCconnected态转入idle态的时候，RRC的配置消息是不保留的，但是由connected态转为inactive态的时候是保留RRC消息的上下文的。
上行传输的一个重要特征是不同终端设备在进行上行传输时在时频上正交多址接入(orthogonal multiple access)，即来自同一小区的不同终端设备的上行传输之间互不干扰。在LTE系统中采用了正交频分复用方式(orthogonal frequency division multiplexing，OFDM)，其组成结构如图2所示。这种接入的好处之一是只要不同的终端设备到达网络设备的时间差不超过循环前缀(cyclic prefix，CP)长度，那么不同的终端设备间就不会产生干扰。
同一小区内，不同终端设备位置不同，终端设备发送的上行数据到达网络设备的时间可能不同，这会造成用户间的干扰。因此，终端设备在进行上行免调度传输时，必须使用有效的时间提前量(Timing Advance，TA)，以使各个终端设备进行上行免调度传输时发送的数据可以同时到达网络设备，从而可以避免终端设备间的干扰。例如，如果没有TA的时候，小区中心的用户1和小区边缘的用户2到达基站的时间有着很大的差别，这可能会导致用户1和用户2之间可能会产生严重干扰。也就是当用户1传输的数据到达基站的时间与用户2传输的数据到达基站的时间差超过CP时，会产生严重的符号间干扰。
为了保证上行传输的正交性，避免小区内(intra-cell)干扰，基站要求来自同一子帧但不同频域资源的不同UE的信号到达基站的时间基本上是对齐的。基站只要在CP范围内接收到UE所发送的上行数据，就能够正确地解码上行数据，因此，上行同步要求来自同一子帧的不同UE的信号到达基站的时间都落在CP之内。
为了保证接收侧(基站侧)的时间同步，LTE提出了上行定时提前(uplink timing advance)的机制。TA，一般用于UE上行传输。为了使UE的上行包在希望的时间到达基站，预估由于距离引起的射频传输时延，提前相应时间TA发出数据包。
在UE侧看来，TA本质上是接收到下行子帧的起始时间与传输上行子帧的时间之间的一个负偏移(negative offset)。基站通过适当地控制每个UE的偏移，可以控制来自不同UE的上行信号到达基站的时间。对于离基站较远的UE，由于有较大的传输延迟，就要比离基站较近的UE提前发送上行数据。
网络设备可以通过估计终端设备的上行定时，并根据估计的上行定时向终端设备发送TA，终端设备根据TA调整上行传输时间，使小区内各个终端设备发送的上行数据到达网络设备的时间相同。
对于机器类通信，其业务有时候在很长一段时间内才有一次通信，而且其通信数据包较小。为了达到节能，减少信令开销的目的，LTE release-16决定标准化在预先定义好的资源上进行传输的机制，也就是不需要动态的下行链路控制信息(downlink control information， DCI)调度的通信，因此也叫做免调度传输。上行免调度传输的过程为：当UE有上行数据需要发送时，不需要基站对UE进行动态的上行调度，UE在预先配置的传输资源上按照预先规定的发送方式进行上行传输。
在免调度传输的时候，处于idle态的用户，由于其上行传输是不连续的，相邻传输的时间较长，因此TA值有可能是过时的或不适用的，那么需要解决的问题就是如何保证上行TA的有效性。
对于连接态UE，UE保持一个TA定时器(TA timer)，当TA timer超时(在此期间没有上行信号的传输)，UE通过发送前导码(preamble)来更新TA；当TA timer没有超时的时候，基站通过上行信号的传输来测量TA是否有效，然后通过TA命令(command)来触发用户更新TA。
对于空闲态UE，在Rel-16标准化讨论过程中同意在验证空闲态的TA有效性时可以采用服务小区改变、空闲模式的时间校准定时器(也可称为空闲态时间对齐定时器，Time Alignment Timer for idle mode)、服务小区参考信号接收功率(Reference Signal Receiving Power，RSRP)变化来验证TA有效性。
但是目前的技术中并没有给出如何利用以上验证准则来确定TA有效性的方案。此外，目前的验证方法并不太准确，以空闲模式的时间校准定时器为例，当时间校准定时器没有超时的时候，UE确定TA有效，反之，则确定TA无效。但是，时间校准定时器是存在一定不准确性的，例如对于位置变化小的UE而言，时间校准定时器虽然过期了，但是UE的位置变化很小，对TA影响很小，因此TA仍然可用，即该TA仍然为有效的。
基于此本申请实施例提供一种通信方法及设备，用于解决现有技术中UE验证TA有效性的方法准确性较低的问题。其中，方法和装置是基于同一发明构思的，由于方法及设备解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。
本申请实施例中所涉及的多个，是指两个或两个以上。
本申请实施例中所涉及的“TA是有效的”或“TA有效”可以理解为TA是准确的或可用的，即可以保证该终端设备采用该TA发送的上行数据可以与其他终端设备发送的上行数据到达网络设备的时间大致相同，或在CP容忍的延时范围内，从而没有用户间干扰。
本申请实施例中所涉及的“TA是无效的”或“TA无效”可以理解为TA是不准确的或不可用的，终端设备采用该TA发送的上行数据与其他终端设备发送的上行数据到达网络设备的时间相差较大，或超过了CP容忍的延时范围，从而可能造成用户间干扰。
另外，需要理解的是，在本申请的描述中，“第一”、“第二”等词汇，仅用于区分描述的目的，而不能理解为指示或暗示相对重要性，也不能理解为指示或暗示顺序。
参见图3，为本申请提供的一种通信方法的流程图。该方法可以应用于图1所示通信系统中的终端设备，该方法包括：
S301，终端设备确定第一信息以及第二信息，所述第一信息用于所述终端设备确定TA的有效性。
其中，所述第一信息可以为预定义的，或者，所述第一信息也可以为网络设备配置的。
一种示例性说明中，第一信息可以是验证门限，用于指示终端设备验证TA有效性时考虑的TA验证准则的数量或指示终端设备验证TA有效性时考虑的同时成立的TA验证准则的数量。在该示例性说明中，第一信息可以是网络设备根据终端设备的服务小区属性(如服务小区半径等)和/或终端设备属性(如终端设备的移动性等)确定并发送给终端设备的， 或者，第一信息也可以是终端设备根据服务小区属性(如服务小区半径等)和/或自身属性(如终端设备的移动性等)确定的。或者，第一信息也可以是终端设备中预配置的验证门限。
举例说明，第一信息可以是网络设备通过高层信令配置的，高层信令可以为无线资源控制信令(radio resource control，RRC)或媒体接入控制控制单元(media access control control element，MAC CE)，也可以是通过物理层信令如下行控制信息(downlink control information，DCI)，本申请实施例在这里不做具体限定。
需要说明的是，本申请实施例中，TA验证准则仅是一种示例性命名，TA验证准则也可以命名为TA验证有效性、验证准则、验证有效性、第一准则，或者其他名称，如XX，应理解，若该XX也可以实现本申请实施例中的TA验证准则所实现的功能，也可以将XX理解为本申请实施例中的TA验证准则。为了描述方便，本申请实施例中将验证TA有效性的准则统一称为TA验证准则。
另一种示例性说明中，第一信息可以是第一因子α，0＜α≤1，用于指示验证门限为
Figure PCTCN2019075249-appb-000001
或
Figure PCTCN2019075249-appb-000002
也就是指示终端设备验证TA有效性时所考虑TA验证准则的数量为
Figure PCTCN2019075249-appb-000003
或
Figure PCTCN2019075249-appb-000004
个，N为第二信息所指示的TA验证准则的数量。在该示例性说明中，α可以是网络设备根据终端设备的服务小区属性(如服务小区半径等)和/或终端设备属性(如终端设备的移动性等)确定并发送给终端设备的，或者，α也可以是终端设备根据服务小区属性(如服务小区半径等)和/或自身属性(如终端设备的移动性等)确定的。或者，α也可以是终端设备中预配置的验证门限。
另一种示例性说明中，第一信息也可以是服务小区属性(如服务小区半径等)和/或终端设备属性，从而终端设备可以根据第一信息确定验证门限。在该示例性说明中，第一信息可以是网络设备发送给终端设备的，或者，第一信息也可以是终端设备预先配置的，或者，第一信息也可以是终端设备通过其他方式获取的。
通过基于服务小区属性(如服务小区半径等)和/或终端设备属性确定验证门限，可以有效提升TA有效性验证的准确性，可以适配不同的TA验证场景。例如对于移动性较弱或半径较小的小区，验证门限可以适当大一些，这样TA只有当多个验证准则都成立时才无效；对于移动性较强的用户或者半径较大的小区，验证门限可以设置小一些，例如1，那么当任意一个TA验证准则确定无效时，TA都是无效的。
S302，所述终端设备根据所述第二信息确定N个TA验证准则。其中，所述N为大于或等于1的整数，所述TA验证准则包括：满足设定的条件时所述TA验证准则成立。
示例性的，N个TA验证准则可以但不限于包括如下个TA验证准则中的一个或多个：根据服务小区RSRP确定TA的有效性；根据服务小区RSRP变化确定TA的有效性；根据服务小区变化确定TA的有效性；根据TA timer确定TA的有效性，其中，TA timer可以为连接态时的TA timer，也可以是空闲态时的时间校准定时器(Time Alignment Timer for idle mode)；根据邻区RSRP(Neighbour cell RSRP)确定TA的有效性；根据邻区RSRP变化(Neighbour cell RSRP change)确定TA的有效性；根据终端设备接收到的多个网络设备的信号到达时差(TDOA of>＝2eNBs，Time Difference of Arrival)确定TA有效性；根据定时提前的历史数据(TA History)确定TA有效性；基于终端设备不同的订阅(Subscription based UE differentiation)确定TA有效性，该准则是根据用户服务小区的覆盖范围来确定TA的有效性，如，对于服务小区覆盖范围十分有限的小区，只要服务小区没有改变，则 终端设备的TA始终是有效的；等等，当然TA验证准则还可以包括其他，这里不再一一列举。
“TA验证准则成立”可以理解为根据TA验证准则确定TA无效。“TA验证准则成立”也可以称为“TA验证准则满足条件”。“TA验证准则不成立”可以理解为根据TA验证准则确定TA有效。“TA验证准则不成立”也可以称为“TA验证准则不满足条件”。
例如，若TA验证准则为根据TA timer确定TA有效性，当TA timer超时时，可以确定TA无效，也就是该TA验证准则成立，反之，则可以确定TA有效，也就是该TA验证准则不成立。又例如，若TA验证准则为根据服务小区RSRP确定TA的有效性，当服务小区RSRP小于预设阈值，则可以确定TA无效，也就是该TA验证准则成立，反之，则可以确定TA有效，也就是该TA验证准则不成立。
或者，“TA验证准则成立”也可以理解为根据TA验证准则确定TA有效。“TA验证准则成立”也可以称为“TA验证准则满足条件”。“TA验证准则不成立”可以理解为根据TA验证准则确定TA无效。“TA验证准则不成立”也可以称为“TA验证准则不满足条件”。
例如，若TA验证准则为根据TA timer确定TA有效性，当TA timer超时时，可以确定TA无效，也就是该TA验证准则不成立，反之，则可以确定TA有效，也就是该TA验证准则成立。又例如，若TA验证准则为根据服务小区RSRP确定TA的有效性，当服务小区RSRP小于预设阈值，则可以确定TA无效，也就是该TA验证准则不成立，反之，则可以确定TA有效，也就是该TA验证准则成立。
为了方便描述，本申请实施例以“TA验证准则成立”表示根据TA验证准则确定TA无效，“TA验证准则不成立”表示根据TA验证准则确定TA有效为例进行说明。当“TA验证准则成立”表示根据TA验证准则确定TA有效时终端设备确定TA有效性的过程，与当“TA验证准则成立”表示根据TA验证准则确定TA有效时终端设备确定TA有效性的过程类似，区别在于关于TA验证准则是否成立的描述相反，例如，在“TA验证准则成立”表示根据TA验证准则确定TA无效的情况下，终端设备在确定TA验证准则成立时执行A，那么，对应的，在“TA验证准则成立”表示根据TA验证准则确定TA有效的情况下，则终端设备在确定某TA验证准则不成立时执行A。
所述第二信息可以为预定义的，或者，所述第二信息也可以为所述网络设备配置的。
一种实现方式中，第二信息可以为N个TA验证准则。
举例说明，第二信息可以是网络设备通过高层信令配置的，高层信令可以为无线资源控制信令(radio resource control，RRC)或媒体接入控制控制单元(media access control control element，MAC CE)，也可以是通过物理层信令如下行控制信息(downlink control information，DCI)，本申请实施例在这里不做具体限定。
另一种实现方式中，第二信息也可以是第一参数，从而终端设备可以根据第一参数和预定义的多个TA验证准则确定N个TA验证准则。
其中，第一参数可以是大于等于1的整数，以第二信息为5为例，则第二信息可以指示终端设备中预定义的多个TA验证准则中的5个TA验证准则作为所述N个TA验证准则，示例性的，这5个TA验证准则可以是终端设备中预定的多个TA验证准则中优先级最高的5个TA验证准则，或者，也可以是终端设备中预定的多个TA验证准则中的前5个TA验证准则。
或者，第一参数也可以大于0且小于等于1，以第二信息为0.3，终端设备预定义了 10个TA验证准则为例，则第二信息可以指示终端设备中预定义的10个TA验证准则中的10*0.3个TA验证准则，也就是3个TA验证准则作为所述N个TA验证准则，示例性的，这3个TA验证准则可以是终端设备中预定的10个TA验证准则中优先级最高的3个TA验证准则，或者，也可以是终端设备中预定的10个TA验证准则中的前3个TA验证准则。
另一种实现方式中，第二信息也可以为一个标识或索引，用于指示终端设备将所述表示或索引对应的TA验证准则组中包括的多个TA验证准则作为N个TA验证准则。
当然，第二信息也可以以其他形式指示N个TA验证准则，这里不再一一列举。
S303，所述终端设备根据所述第一信息和所述N个TA验证准则确定TA的有效性。
本申请实施例中终端设备通过结合第一信息以及N个TA验证准则确定TA有效性，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率，进而可以在保证系统的不浪费功耗同时又可以保证不会对系统产生干扰。
一种可能的实施方式中，所述N个TA验证准则可以包括X个TA验证准则和Y个TA验证准则，X大于等于1，Y大于等于0，且X+Y＝N。所述终端设备根据所述第一信息和所述N个TA验证准则确定TA的有效性时，可以通过如下方式实现：若所述终端设备确定所述X个TA验证准则中的所有TA验证准则均不成立，则所述终端设备可以根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性。若所述终端设备确定所述X个TA验证准则中至少有一个TA验证准则成立，则所述终端设备可以确定所述TA无效。
作为一种示例性说明，X可以等于1，X个TA验证准则可以包括当服务小区改变时确定TA无效，因此，当终端设备的服务小区改变时，终端设备可以确定TA无效。由于终端设备的服务小区改变时，终端设备需要进行小区的切换，终端设备到网络设备的距离可能会产生较大的变化，而且TA也不会随着小区切换而保留，因此此时TA是一定需要更新的。因此，若终端设备的服务小区改变，终端设备可以确定TA无效。若终端设备的服务小区没有改变，终端设备可以根据Y个TA验证准则和第一信息进一步确定TA的有效性。
进一步的，当终端设备根据Y个TA验证准则和第一信息进一步确定TA的有效性时，可以通过如下方式实现：若所述终端设备确定所述Y个TA验证准则中至少M个TA验证准则成立，所述终端设备可以确定所述TA无效，所述M为大于0，且小于等于Y的整数，所述M为所述终端设备根据所述第一信息确定的。若所述终端设备确定所述Y个TA验证准则中小于M个TA验证准则成立，所述终端设备可以确定所述TA有效。
示例性的，假设Y等于10，若终端设备根据第一信息确定M等于5，则当10个TA验证准则中至少5个TA验证准则成立时，终端设备可以确定TA无效，反之，则可以确定TA有效。
通过根据第一信息确定验证门限M，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
另一种可能的实施方式中，所述N个TA验证准则可以分为第一TA验证准则集合和第二TA验证准则集合，所述第一TA验证准则集合中包括一个或多个TA验证准则，所述第二TA验证准则集合中包括一个或多个TA验证准则，所述第一TA验证准则集合中包括的TA验证准则和所述第二TA验证准则集合中包括的TA验证准则均不相同，即没有一个验证准则同时属于所述第一TA验证准则和所述第二验证准则。所述终端设备根据所述第 一信息和所述N个TA验证准则确定TA的有效性时，若所述终端设备确定所述第一TA验证准则集合中至少有一个TA验证准则成立，则所述终端设备可以确定所述TA无效。若所述终端设备确定所述第一TA验证准则集合中的所有TA验证准则均不成立，则所述终端设备可以根据所述第二TA验证准则集合和所述第一信息确定所述TA的有效性。其中，所述终端设备可以根据所述第二TA验证准则集合和所述第一信息确定所述TA的有效性的过程，可以参阅终端设备根据Y个TA验证准则和第一信息进一步确定TA的有效性的过程，这里不再重复赘述。
进一步的，所述终端设备根据所述第一信息和所述第二TA验证准则集合确定所述TA的有效性时，若所述终端设备确定所述第二TA验证准则集合中至少M个TA验证准则成立，所述终端设备可以确定所述TA无效，所述m为大于0的整数，所述m为所述终端设备根据所述第一信息确定的。若所述终端设备确定所述第二TA验证准则集合中小于m个TA验证准则成立，所述终端设备可以确定所述TA有效，所述m为大于0的整数，所述m为所述终端设备根据所述第一信息确定的。
本申请实施例中通过将N个TA验证准则根据优先级或者与TA有效性的相关程度分为两类，一类验证准则是与TA有效性强相关的(即X个TA验证准则或第一TA验证准则集合)，另外一类验证准则与TA有效性的相关性较弱的(即Y个TA验证准则或第二TA验证准则集合)，通过将N个验证准则分类，可以更准确的评估TA的有效性，如强相关的一类TA验证准则中只要有一个成立，那么说明TA无效，只有当强相关的一类验证准则均不成立时，弱相关的一类验证准则中只有在一个或多个成立时TA才无效。另一种可能的实施方式中，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，还可以通过如下方式实现：若所述终端设备可以确定所述N个TA验证准则中至少S个TA验证准则成立时，所述终端设备确定所述TA无效，0＜S≤N，所述S为所述终端设备根据所述第一信息确定的整数。若所述终端设备可以确定所述N个TA验证准则中小于S个TA验证准则成立时，所述终端设备确定所述TA有效。
示例性的，假设N等于8，若终端设备根据第一信息确定S等于3，则当8个TA验证准则中至少3个TA验证准则成立时，终端设备可以确定TA无效，反之，则可以确定TA有效。
通过根据第一信息确定验证门限S，可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，从而可以提高TA有效性验证的准确率。
另一种可能的实施方式中，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，还可以通过如下方式实现：若所述终端设备确定R个TA验证准则中至少有1个TA验证准则成立时，所述终端设备确定所述TA无效，所述R个TA验证准则为所述终端设备根据N个TA验证准则及第一规则确定的，0＜R≤N，所述R为所述终端设备根据所述第一信息确定的整数，所述第一规则为预定义的或网络设备配置的。若所述终端设备确定R个TA验证准则中所有TA验证准则均不成立时，所述终端设备确定所述TA有效。
在一种可能的设计中，所述第一规则可以为按照所述N个TA验证准则的优先级确定所述R个TA验证准则。如，所述第一规则可以为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则，或者，所述第一规则也可以为按照所述N个TA验证准则的优先级由低到高的顺序确定所述R个TA验证准则。需要说明的是，不同TA 验证准则的优先级可以相同，也可以不同，例如，根据服务小区改变确定TA有效性的优先级＞根据TA timer确定TA有效性的优先级≥根据服务小区RSRP变化确定TA有效性的优先级。TA验证准则优先级可以是网络设备通过高层配置的，也可以通过协议规定，或者也可以是终端设备预定义的，这里不做具体限定。
示例性的，终端设备根据第一信息确定验证门限R，将N个TA验证准则按照优先级从高到低进行排序选择前R个TA验证准则。若这R个TA验证准则中至少1个TA验证准则成立，终端设备可以确定TA无效，反之，终端设备可以确定TA有效。或者，若这R个TA验证准则全部成立，终端设备可以确定TA无效，反之，终端设备可以确定TA有效。
在一种可能的设计中，所述第一规则还可以为按照所述N个TA验证准则的相关性确定所述R个TA验证准则，其中，相关性可以指TA验证准则与TA的相关性等。如，所述第一规则可以为按照所述N个TA验证准则的相关性由高到低的顺序确定所述R个TA验证准则，或者，所述第一规则可以为按照所述N个TA验证准则的相关性由低到高的顺序确定所述R个TA验证准则。需要说明的是，不同TA验证准则的相关性可以相同，也可以不同，例如，根据服务小区改变确定TA有效性的相关性＞根据TA timer确定TA有效性的相关性≥根据服务小区RSRP变化确定TA有效性的相关性。TA验证准则优先级可以是网络设备通过高层配置的，也可以通过协议规定，或者也可以是终端设备预定义的，这里不做具体限定。
通过将N个TA验证准则、第一信息以及第一规则确定R个TA验证准则，然后联合R个TA验证准则验证TA的有效性，可以提高TA有效性验证的效率以及准确性。
由于服务小区RSRP的影响因素很多，如阴影、多径等，受到阴影、多径等因素的影响，RSRP变化很大但其实TA变化很小，TA仍然有效。此外，RSRP测量的初始阶段，稳定性差，不可靠性差，因此，基于服务小区RSRP变化确定TA有效性时容易产生误差。基于此，本申请实施例中，所述N个TA验证准则可以包括第一TA验证准则，所述第一TA验证准则包括：若第一定时器未超时，则所述第一TA验证准则不成立；若第一定时器超时且第一RSRP值小于设定的阈值，所述第一TA验证准则不成立；若第一定时器超时且所述第一RSRP值大于或等于设定的阈值，所述第一TA验证准则成立，如图4所示。
其中，第一RSRP值可以两个测量的RSRP值的差值，如第一RSRP值可以为最近一次获取TA时服务小区的RSRP值与所述服务小区当前的RSRP值之间的差值，或者第一RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值与所述服务小区当前的RSRP值之间的差值等等，本申请实施例在这里不做具体限定。其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。
其中，第一定时器可以是网络设备向终端设备发送的，也可以是协议规定的，或者，也可以是终端设备根据自身性质(如移动性)确定的。
本申请实施例中通过设定第一定时器，第一定时器过期之前，由于RSRP测量时间段存在不准确性，变化较大，因此在验证TA有效性时可以不考虑第一RSRP值，当第一定时器过期的时候再考虑第一RSRP值对TA有效性的影响。这样可以有效消除RSRP在初始测量不准确阶段对于TA有效性的影响及误判，提升了TA验证的稳定及准确性，从而可以提升系统性能减少不必要的更新TA的操作，节省用户功耗。
或者，所述N个TA验证准则可以包括第五TA验证准则，所述第五TA验证准则包括：若在第一时刻之前，则所述第一TA验证准则不成立；若在第一时刻之后且第一RSRP 值小于设定的阈值，所述第一TA验证准则不成立；若在第一时刻之后且所述第一RSRP值大于或等于设定的阈值，所述第一TA验证准则成立。
所述N个TA验证准则还可以包括第三TA验证准则，所述第三TA验证准则包括：若第三定时器未超时，所述第三TA验证准则不成立；若第三定时器超时且第三RSRP值大于设定的阈值，所述第三TA验证准则不成立；若第三定时器超时且所述第三RSRP值小于或等于设定的阈值，所述第三TA验证准则成立。其中，第三定时器可以与第一定时器相同，也可以与第一定时器不同。第三RSRP值可以为测量的RSRP值，如第三RSRP值可以为所述服务小区当前的RSRP值，或者第三RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值等等，本申请实施例在这里不做具体限定。其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。
TA timer是存在一定不准确性的。例如对于位置变化小的终端设备而言，TA timer虽然过期了，但是用户的位置变化很小，对TA影响很小，因此TA仍然有效。因此，根据TA timer确定TA有效性时容易产生误差。基于此，本申请实施例中，所述N个TA验证准则可以包括第二TA验证准则，所述第二TA验证准则包括：若第二RSRP值小于第一阈值，则所述第二TA验证准则不成立；若所述第二RSRP值大于或等于所述第一阈值，且第二定时器不超时，所述第二TA验证准则不成立；若所述第二RSRP值大于或等于所述第一阈值，且第二定时器超时，所述第二TA验证准则成立。其中，第二定时器可以用于记录TA有效的时间，如，第二定时器可以为连接态时的TA timer，或者空闲态时的时间校准定时器(Time Alignment Timer for idle mode)。第二RSRP值可以两个测量的RSRP值的差值，如第二RSRP值可以为最近一次获取TA时服务小区的RSRP值与所述服务小区当前的RSRP值之间的差值，或者第二RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值与所述服务小区当前的RSRP值之间的差值等等，本申请实施例在这里不做具体限定。其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。
进一步的，若第二RSRP值小于第一阈值，终端设备还可以不启动第二定时器，当第二RSRP值大于等于第一阈值后，终端设备再启动第二定时器。
所述N个TA验证准则还可以包括第四TA验证准则，所述第四TA验证准则包括：若第四RSRP值大于第二阈值，所述第四TA验证准则不成立；所述第四RSRP值小于或等于所述第二阈值，且第二定时器不超时，所述第四TA验证准则不成立；若所述第四RSRP值小于或等于所述第二阈值，且第二定时器超时，所述第四TA验证准则成立。
第四RSRP值可以为测量的RSRP值，如第四RSRP值可以为所述服务小区当前的RSRP值，或者第四RSRP值也可以为一段时间内测量服务小区的RSRP值的平均值等等，本申请实施例在这里不做具体限定。其中，RSRP值可以为线性值(linear value)，也可以为分贝(dB)值。
进一步的，若第四RSRP值大于第二阈值，终端设备还可以不启动第二定时器，当第四RSRP值小于等于第一阈值后，终端设备再启动第二定时器。
由于RSRP变化在一定程度上可以反映终端设备的移动距离，本申请实施例中通过在第二RSRP值较小时(即第二RSRP值小于第一阈值时)可以认为终端设备的移动距离较小，因此，可以在验证TA有效性可以不考虑第二定时器。在第二RSRP值较大时(即第二RSRP值大于等于第一阈值时)可以认为终端设备的移动距离较大，因此，可以在验证 TA有效性再考虑第二定时器。通过这种方式，可以有效消除TA timer带来的有效性误判，提升了TA有效性验证的稳定及准确性。从而可以提升系统性能减少不必要的更新TA的操作，节省用户功耗。
在具体实施时，若终端设备确定TA无效，终端设备可以通过提前数据传输(Earlydata transmission，EDT)传输上行数据，这种方式可以理解为在终端设备确定TA无效时，可以在随机接入过程中，允许终端设备在一个下行数据传输后发送上行数据(Allows one uplink data transmission optionally followed by one downlink data transmission during the random access procedure)，或者，这种方式也可以理解为在终端设备确定TA无效时，可以在随机接入过程中的第三消息中携带用户上行数据。
或者，若终端设备确定TA无效，终端设备也可以发起随机接入(randomaccessprocedure)过程。或者，终端设备也可以按照两步随机接入信道(random access channel，RACH)的方式获得新的TA。
此外，终端设备在确定TA无效时还可以向网络设备发送第一消息，第一消息用于通知所述网络设备以下内容中的一项或多项：TA无效；更新TA；释放第一资源，第一资源为预配置传输资源。
参见图5，为本申请提供的一种通信方法的流程图。该方法可以应用于图1所示通信系统中的网络设备，该方法包括：
S501，网络设备确定第一信息和第二信息，其中，所述第一信息用于终端设备确定TA的有效性，所述第二信息用于所述终端设备确定N个TA验证准则，所述N为大于或等于1的整数。
第一信息和第二信息可以参阅图3所示方法中第一信息和第二信息的相关描述，这里不再重复赘述。
S502，所述网络设备向所述终端设备发送所述第一信息和所述第二信息。
本申请实施例中网络设备通过向终端设备发送第一信息以及第二信息，使得终端设备可以通过结合第一信息以及N个TA验证准则确定TA有效性，从而终端设备可以有效、合理的联合使用不同的验证准则来设计验证TA的有效性，进而可以提高TA有效性验证的准确率，可以在保证系统的不浪费功耗同时又可以保证不会对系统产生干扰。
在具体实施中，第二信息也可以为终端设备预定义的，网络设备也可以只发送第一信息，该第一信息用于使得UE根据第一信息和验证准则确定TA的有效性。
此外，所述网络设备还可以向所述终端设备发送第一规则，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。其中，第一规则可以图3所示方法中第一规则的相关描述，这里不再重复赘述。
基于与方法实施例的同一发明构思，本申请实施例提供一种通信装置，具体用于实现图3所述实施例中终端设备的功能，该装置可以是终端设备本身，也可以是终端设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。该通信装置的结构可以如图6所示，包括存储单元601以及处理单元602。其中，存储单元601，用于存储计算机程序。处理单元602，用于调用所述存储单元601存储的计算机程序，执行：确定第一信息以及第二信息，所述第一信息用于所述通信装置确定TA的有效性；根据所述第二信息确定N个TA验证准则，所述N为大于或等于1的整数，所述TA验证准则包括：满足设定的条件时所述TA验证准则成立；根据所述第一信息和所述N个TA验证准则确定TA的有效 性。
一种实现方式中，所述N个TA验证准则可以包括X个TA验证准则和Y个TA验证准则，X大于等于1，Y大于等于0，且X+Y＝N，所述处理单元602，在根据所述第一信息和所述N个TA验证准则确定TA的有效性时，可以具体用于：若所述处理单元602确定所述X个TA验证准则中的所有TA验证准则均不成立，则根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性；若所述处理单元602确定所述X个TA验证准则中至少有一个TA验证准则成立，则确定所述TA无效。
进一步的，所述处理单元602，在根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性时，具体用于：若所述处理单元602确定所述Y个TA验证准则中至少M个TA验证准则成立，确定所述TA无效，所述M为大于0，且小于等于Y的整数，所述M为所述处理单元602根据所述第一信息确定的。
另一种实现方式中，所述处理单元602，在根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，可以具体用于：若所述处理单元602确定所述N个TA验证准则中至少S个TA验证准则成立时，确定所述TA无效，0＜S≤N，所述S为所述处理单元602根据所述第一信息确定的整数。
所述处理单元602，在根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，还可以具体用于：若所述处理单元602确定R个TA验证准则中至少有1个TA验证准则成立时，确定所述TA无效，所述R个TA验证准则为所述处理单元602根据N个TA验证准则及第一规则确定的，0＜R≤N，所述R为所述处理单元602根据所述第一信息确定的整数，所述第一规则为预定义的或网络设备配置的。
示例性的，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。
一种示例性说明，所述N个TA验证准则包括第一TA验证准则，所述第一TA验证准则包括：若第一定时器未超时，则所述第一TA验证准则不成立；若第一定时器超时且第一RSRP值小于设定的阈值，所述第一TA验证准则不成立；若第一定时器超时且所述第一RSRP值大于或等于设定的阈值，所述第一TA验证准则成立。
一种示例性说明，所述N个TA验证准则包括第二TA验证准则，所述第二TA验证准则包括：若第二RSRP值小于第一阈值，则所述第二TA验证准则不成立；若所述第二RSRP值大于或等于所述第一阈值，且第二定时器不超时，所述第二TA验证准则不成立；若所述第二RSRP值大于或等于所述第一阈值，且第二定时器超时，所述第二TA验证准则成立。
本申请实施例中对模块的划分是示意性的，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，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
其中，集成的模块既可以采用硬件的形式实现时，通信装置可以如图7所示，处理单元602可以为处理器702。处理器702，可以是一个中央处理模块(central processing unit，CPU)，或者为数字处理模块等等。存储单元601可以是存储器703，用于存储处理器702执行的程序。存储器703可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机 存取存储器(random-access memory，RAM)。存储器703是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。
处理器702用于执行存储器703存储的程序代码，具体用于执行上述处理单元602的动作，本申请在此不再赘述。
该通信装置还包括：通信接口701，通信接口701可以是收发器、也可以为接口电路如收发电路等、也可以为收发芯片等等。
本申请实施例中不限定上述通信接口701、处理器702以及存储器703之间的具体连接介质。本申请实施例在图7中以存储器703、处理器702以及通信接口701之间通过总线704连接，总线在图7中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图7中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
基于与方法实施例的同一发明构思，本申请实施例提供一种通信装置，具体用于实现图5所述实施例中网络设备的功能，该装置可以是网络设备本身，也可以是网络设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。该通信装置的结构可以如图8所示，包括处理单元801以及发送单元802。其中，处理单元801，用于确定第一信息和第二信息，其中，所述第一信息用于终端设备确定TA的有效性，所述第二信息用于所述终端设备确定N个TA验证准则，所述N为大于或等于1的整数；发送单元802，用于向所述终端设备发送所述第一信息和所述第二信息。
在具体实施中，处理单元801也可以只确定第一信息，发送单元802可以只向所述终端设备发送所述第一信息。
所述发送单元802，还可以用于：向所述终端设备发送第一规则，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。
本申请实施例中对模块的划分是示意性的，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，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
其中，集成的模块既可以采用硬件的形式实现时，通信装置可以如图9所示，处理单元801可以为处理器902。处理器902，可以是一个CPU，或者为数字处理模块等等。发送单元802可以为通信接口901，通信接口901可以是收发器、也可以为接口电路如收发电路等、也可以为收发芯片等等。该网络设备还包括：存储器903，用于存储处理器801执行的程序。存储器903可以是非易失性存储器，比如HDD或SSD等，还可以是volatile memory，例如RAM。存储器903是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。
处理器902用于执行存储器903存储的程序代码，具体用于执行上述处理单元801的动作，本申请在此不再赘述。
本申请实施例中不限定上述通信接口901、处理器902以及存储器903之间的具体连接介质。本申请实施例在图9中以存储器903、处理器902以及通信接口901之间通过总线904连接，总线在图9中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图9中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (21)

  1. 一种通信方法，其特征在于，包括：
    终端设备确定第一信息以及第二信息，所述第一信息用于所述终端设备确定TA的有效性；
    所述终端设备根据所述第二信息确定N个TA验证准则，所述N为大于或等于1的整数，所述TA验证准则包括：满足设定的条件时所述TA验证准则成立；
    所述终端设备根据所述第一信息和所述N个TA验证准则确定TA的有效性。
  2. 根据权利要求1所述的方法，其特征在于，所述N个TA验证准则包括X个TA验证准则和Y个TA验证准则，X大于等于1，Y大于等于0，且X+Y＝N，所述终端设备根据所述第一信息和所述N个TA验证准则确定TA的有效性，包括：
    若所述终端设备确定所述X个TA验证准则中的所有TA验证准则均不成立，则所述终端设备根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性；
    若所述终端设备确定所述X个TA验证准则中至少有一个TA验证准则成立，则所述终端设备确定所述TA无效。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性，包括：
    若所述终端设备确定所述Y个TA验证准则中至少M个TA验证准则成立，所述终端设备确定所述TA无效，所述M为大于0，且小于等于Y的整数，所述M为所述终端设备根据所述第一信息确定的。
  4. 根据权利要求1所述的方法，其特征在于，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性，包括：
    若所述终端设备确定所述N个TA验证准则中至少S个TA验证准则成立时，所述终端设备确定所述TA无效，0＜S≤N，所述S为所述终端设备根据所述第一信息确定的整数。
  5. 根据权利要求1所述的方法，其特征在于，所述终端设备根据所述第一信息和所述N个TA验证准则确定所述TA的有效性，包括：
    若所述终端设备确定R个TA验证准则中至少有1个TA验证准则成立时，所述终端设备确定所述TA无效，所述R个TA验证准则为所述终端设备根据N个TA验证准则及第一规则确定的，0＜R≤N，所述R为所述终端设备根据所述第一信息确定的整数，所述第一规则为预定义的或网络设备配置的。
  6. 根据权利要求5所述的方法，其特征在于，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。
  7. 根据权利要求1至6任一项所述的方法，其特征在于，所述N个TA验证准则包括第一TA验证准则，所述第一TA验证准则包括：
    若第一定时器未超时，则所述第一TA验证准则不成立；
    若第一定时器超时且第一RSRP值小于设定的阈值，所述第一TA验证准则不成立；
    若第一定时器超时且所述第一RSRP值大于或等于设定的阈值，所述第一TA验证准则成立。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，所述N个TA验证准则包 括第二TA验证准则，所述第二TA验证准则包括：
    若第二RSRP值小于第一阈值，则所述第二TA验证准则不成立；
    若所述第二RSRP值大于或等于所述第一阈值，且第二定时器不超时，所述第二TA验证准则不成立；
    若所述第二RSRP值大于或等于所述第一阈值，且第二定时器超时，所述第二TA验证准则成立。
  9. 一种通信方法，其特征在于，包括：
    网络设备确定第一信息和第二信息，其中，所述第一信息用于终端设备确定TA的有效性，所述第二信息用于所述终端设备确定N个TA验证准则，所述N为大于或等于1的整数；
    所述网络设备向所述终端设备发送所述第一信息和所述第二信息。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：所述网络设备向所述终端设备发送第一规则，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。
  11. 一种通信装置，其特征在于，包括：
    存储单元，用于存储计算机程序；
    处理单元，用于调用所述存储单元存储的计算机程序，执行：
    确定第一信息以及第二信息，所述第一信息用于所述通信装置确定TA的有效性；
    根据所述第二信息确定N个TA验证准则，所述N为大于或等于1的整数，所述TA验证准则包括：满足设定的条件时所述TA验证准则成立；
    根据所述第一信息和所述N个TA验证准则确定TA的有效性。
  12. 根据权利要求11所述的通信装置，其特征在于，所述N个TA验证准则包括X个TA验证准则和Y个TA验证准则，X大于等于1，Y大于等于0，且X+Y＝N，所述处理单元，在根据所述第一信息和所述N个TA验证准则确定TA的有效性时，具体用于：
    若所述处理单元确定所述X个TA验证准则中的所有TA验证准则均不成立，则根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性；
    若所述处理单元确定所述X个TA验证准则中至少有一个TA验证准则成立，则确定所述TA无效。
  13. 根据权利要求12所述的通信装置，其特征在于，所述处理单元，在根据所述第一信息和所述Y个TA验证准则确定所述TA的有效性时，具体用于：
    若所述处理单元确定所述Y个TA验证准则中至少M个TA验证准则成立，确定所述TA无效，所述M为大于0，且小于等于Y的整数，所述M为所述处理单元根据所述第一信息确定的。
  14. 根据权利要求11所述的通信装置，其特征在于，所述处理单元，在根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，具体用于：
    若所述处理单元确定所述N个TA验证准则中至少S个TA验证准则成立时，确定所述TA无效，0＜S≤N，所述S为所述处理单元根据所述第一信息确定的整数。
  15. 根据权利要求11所述的通信装置，其特征在于，所述处理单元，在根据所述第一信息和所述N个TA验证准则确定所述TA的有效性时，具体用于：
    若所述处理单元确定R个TA验证准则中至少有1个TA验证准则成立时，确定所述 TA无效，所述R个TA验证准则为所述处理单元根据N个TA验证准则及第一规则确定的，0＜R≤N，所述R为所述处理单元根据所述第一信息确定的整数，所述第一规则为预定义的或网络设备配置的。
  16. 根据权利要求15所述的通信装置，其特征在于，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。
  17. 根据权利要求11至16任一项所述的通信装置，其特征在于，所述N个TA验证准则包括第一TA验证准则，所述第一TA验证准则包括：
    若第一定时器未超时，则所述第一TA验证准则不成立；
    若第一定时器超时且第一RSRP值小于设定的阈值，所述第一TA验证准则不成立；
    若第一定时器超时且所述第一RSRP值大于或等于设定的阈值，所述第一TA验证准则成立。
  18. 根据权利要求11至17任一项所述的通信装置，其特征在于，所述N个TA验证准则包括第二TA验证准则，所述第二TA验证准则包括：
    若第二RSRP值小于第一阈值，则所述第二TA验证准则不成立；
    若所述第二RSRP值大于或等于所述第一阈值，且第二定时器不超时，所述第二TA验证准则不成立；
    若所述第二RSRP值大于或等于所述第一阈值，且第二定时器超时，所述第二TA验证准则成立。
  19. 一种通信装置，其特征在于，包括：
    处理单元，用于确定第一信息和第二信息，其中，所述第一信息用于终端设备确定TA的有效性，所述第二信息用于所述终端设备确定N个TA验证准则，所述N为大于或等于1的整数；
    发送单元，用于向所述终端设备发送所述第一信息和所述第二信息。
  20. 根据权利要求19所述的装置，其特征在于，所述发送单元，还用于：向所述终端设备发送第一规则，所述第一规则为按照所述N个TA验证准则的优先级由高到低的顺序确定所述R个TA验证准则。
  21. 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中存储程序，所述程序在被一个或多个处理器读取并执行时可实现权利要求1至10任一项所述的方法。
PCT/CN2019/075249 2019-02-15 2019-02-15 一种通信方法及设备 WO2020164123A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19915304.0A EP3911046A4 (en) 2019-02-15 2019-02-15 COMMUNICATION METHOD AND DEVICE
CN201980091857.XA CN113424604B (zh) 2019-02-15 2019-02-15 一种通信方法及设备
PCT/CN2019/075249 WO2020164123A1 (zh) 2019-02-15 2019-02-15 一种通信方法及设备
US17/401,566 US20210377895A1 (en) 2019-02-15 2021-08-13 Communication Method and Device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/075249 WO2020164123A1 (zh) 2019-02-15 2019-02-15 一种通信方法及设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/401,566 Continuation US20210377895A1 (en) 2019-02-15 2021-08-13 Communication Method and Device

Publications (1)

Publication Number Publication Date
WO2020164123A1 true WO2020164123A1 (zh) 2020-08-20

Family

ID=72044163

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/075249 WO2020164123A1 (zh) 2019-02-15 2019-02-15 一种通信方法及设备

Country Status (4)

Country Link
US (1) US20210377895A1 (zh)
EP (1) EP3911046A4 (zh)
CN (1) CN113424604B (zh)
WO (1) WO2020164123A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022197227A1 (en) * 2021-03-18 2022-09-22 Telefonaktiebolaget Lm Ericsson (Publ) Wireless device, network node, and methods in a wireless communications network
WO2022213901A1 (zh) * 2021-04-06 2022-10-13 展讯通信（上海）有限公司 数据处理方法、装置和用户设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118525572A (zh) * 2022-01-11 2024-08-20 上海诺基亚贝尔股份有限公司 对上行链路同步的增强

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281626A (zh) * 2011-07-06 2011-12-14 电信科学技术研究院 一种上行定时提前量的确定方法及装置
CN106550415A (zh) * 2015-09-22 2017-03-29 中兴通讯股份有限公司 上行同步方法、设备和系统
WO2019029732A1 (zh) * 2017-08-11 2019-02-14 华为技术有限公司 通信方法和装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20065197A0 (fi) * 2006-03-27 2006-03-27 Nokia Corp Nousevan siirtotien synkronointiparametrin voimassaolon päättely pakettiradiojärjestelmässä
US20140071856A1 (en) * 2012-09-10 2014-03-13 At&T Mobility Ii Llc Timing advance information for adapting neighbor relations
CN107079502A (zh) * 2014-11-04 2017-08-18 瑞典爱立信有限公司 用于改进的随机接入传输的无线通信设备、网络节点及其中的方法
CN106792775B (zh) * 2015-11-23 2021-10-19 华为技术有限公司 一种接入方法、装置及系统
US10367677B2 (en) * 2016-05-13 2019-07-30 Telefonaktiebolaget Lm Ericsson (Publ) Network architecture, methods, and devices for a wireless communications network
CN107995636B (zh) * 2016-10-26 2021-08-13 华为技术有限公司 免授权传输的方法、终端设备和网络设备
US20210297976A1 (en) * 2018-08-09 2021-09-23 Telefonaktiebolaget Lm Ericsson (Publ) Maintaining validity of timing advance
ES2848975T3 (es) * 2018-12-14 2021-08-13 Asustek Comp Inc Procedimientos y aparatos para aplicar la longitud del temporizador de alineación de tiempo para recursos de enlace ascendente preconfigurados en un sistema de comunicación inalámbrica

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102281626A (zh) * 2011-07-06 2011-12-14 电信科学技术研究院 一种上行定时提前量的确定方法及装置
CN106550415A (zh) * 2015-09-22 2017-03-29 中兴通讯股份有限公司 上行同步方法、设备和系统
WO2019029732A1 (zh) * 2017-08-11 2019-02-14 华为技术有限公司 通信方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3911046A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022197227A1 (en) * 2021-03-18 2022-09-22 Telefonaktiebolaget Lm Ericsson (Publ) Wireless device, network node, and methods in a wireless communications network
WO2022213901A1 (zh) * 2021-04-06 2022-10-13 展讯通信（上海）有限公司 数据处理方法、装置和用户设备

Also Published As

Publication number Publication date
US20210377895A1 (en) 2021-12-02
CN113424604B (zh) 2023-04-28
CN113424604A (zh) 2021-09-21
EP3911046A4 (en) 2022-01-26
EP3911046A1 (en) 2021-11-17

Similar Documents

Publication Publication Date Title
US20080189970A1 (en) Measurement gap pattern scheduling to support mobility
TW202021394A (zh) 一種通道監聽方法及裝置、終端設備、網路設備
US12063613B2 (en) System and method for determining timing advance validity for a communication method and device
WO2020237594A1 (zh) 一种bwp的管理方法及装置、终端
WO2021155742A1 (zh) 信号传输方法及装置
US20210377895A1 (en) Communication Method and Device
EP3723429B1 (en) Information indication method, terminal device and network device
JP2009165133A (ja) ユーザ装置にアクティブ期間の開始点を設定する方法及び装置
WO2020200134A1 (zh) 一种随机接入方法及通信装置
WO2021017603A1 (zh) 一种节能信号的传输方法、基站及终端设备
WO2018201486A1 (zh) 一种消息发送方法、消息接收方法及对应设备
WO2014019552A1 (zh) 业务控制方法、终端和网络侧设备
WO2021081838A1 (zh) 一种drx配置方法及装置、终端设备、网络设备
WO2021056581A1 (zh) 上行信号的发送和接收方法以及装置
WO2017117793A1 (zh) 一种系统信息发送、更新方法及设备
WO2016161606A1 (zh) 消息发送/接收方法、覆盖增强等级确定/获取方法及相关设备
WO2019001205A1 (zh) 一种功率余量报告发送、接收方法及设备
WO2021159513A1 (zh) 上行传输方法以及装置
CN112217618B (zh) 信息传输方法及装置
WO2023050916A1 (zh) Pucch功率控制方法、终端、装置及存储介质
CN112217617A (zh) 信息传输方法及装置
WO2021213136A1 (zh) 一种通信方法和终端设备
WO2018201338A1 (zh) 通信方法和设备
WO2021077319A1 (zh) 无线通信方法、装置和通信设备
CN110463284B (zh) 用于确定功率控制配置的方法和设备

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: 19915304

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2019915304

Country of ref document: EP

Effective date: 20210813