CN106162762B - A kind of method and device of determining switching timing time - Google Patents
A kind of method and device of determining switching timing time Download PDFInfo
- Publication number
- CN106162762B CN106162762B CN201510140210.5A CN201510140210A CN106162762B CN 106162762 B CN106162762 B CN 106162762B CN 201510140210 A CN201510140210 A CN 201510140210A CN 106162762 B CN106162762 B CN 106162762B
- Authority
- CN
- China
- Prior art keywords
- timing time
- switching timing
- reference value
- handover
- time reference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000008447 perception Effects 0.000 abstract description 4
- 238000013468 resource allocation Methods 0.000 abstract 3
- 230000002123 temporal effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 230000036963 noncompetitive effect Effects 0.000 description 4
- 101100533725 Mus musculus Smr3a gene Proteins 0.000 description 3
- 230000002860 competitive effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses the method and devices of determining switching timing time a kind of, this method comprises: obtaining adjacent area preamble resource allocation information；According to the adjacent area preamble resource allocation information of the acquisition and preset algorithm, switching timing temporal reference value is calculated；The switching timing time is determined according to the switching timing temporal reference value and system configuration of the calculating.The embodiment of the present invention can adaptively adjust the switching timing time based on adjacent area preamble resource allocation information, so as to avoid causing the UE that should carry out link re-establishment in time that cannot rebuild in time due to the switching timing time being arranged excessive, to improve user's perception, and, can be avoided because the switching timing time setting it is too small caused by handover failure, to improve network performance.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method and an apparatus for determining a handover timing time.
Background
The timer related to handover in LTE system is T304 timer, defined as: the length of The Timer (The Timer for UE to Wait for Handover successful) of The UE is a parameter related to Handover in The LTE system, inter-system Handover, or CCO (Cell Change Order) assisted inter-system redirection.
When the timer is used for handover in an LTE system, handover to LTE, and inter-system Cell Change Order (CCO) to GSM, the timer is terminated only if the operation is successful, and the expiration of the timer means failure of corresponding interoperation and a series of subsequent reconfigurations. If the value is set to be too large, although the handover success probability is increased, the UE which should perform link re-establishment in time cannot be re-established in time, and thus user perception is seriously affected. Similarly, if the setting is too small, the switching failure is easily triggered, which not only affects the switching success rate, but also hinders the user perception to a certain extent.
In the initial stage of TD-LTE network establishment, T304 is uniformly set to 200ms for management. However, the unified setting is not reasonable for some specific scenarios, for example, the configuration information of the neighboring cell, especially the configuration information of the preamble resource, is not referred to. In a region with a complex network structure and overlapped coverage of multiple cells, due to collision of preamble resources of adjacent cells, uplink synchronization delay is lengthened, and at this time, a timer T304 in charge of controlling handover in a connected state is shorter, thereby affecting handover success rate and causing unnecessary risk of disconnection.
In addition, the LTE introduces a timer 304 to control the 'intra-E-UTRAN handover' and 'inter-system handover into E-UTRAN', and the UE waits for receiving the RRC connection reconfiguration message with 'mobility control Info'. The timer will stop after completing the random access of the new cell, and after the timer is overtime, the UE needs to recover the original cell configuration and initiate an RRC reestablishment request. Since LTE supports two modes of random access: competitive random access and non-competitive random access. In the contention random access process, the UE randomly selects the random access preamble, which may cause multiple UEs to use the same random access preamble to cause random access collision, and therefore, a subsequent random access contention resolution procedure needs to be added. In the non-competitive random access process, the eNodeB allocates a unique random access preamble to each UE needing random access, so that the conflict generated by different UEs in the access process is avoided, and the random access can be quickly completed. If a certain scene supports two random access modes at the same time, the eNodeB preferentially selects non-competitive random access, and only when the non-competitive random access resources are not distributed enough, the UE is instructed to initiate competitive random access. The two ways directly affect the access delay of the terminal in switching to the new cell, the too long setting of the waiting time of the timer may cause the handover failure to fail to back off and initiate the RRC connection reestablishment process in time, and the too short setting may cause the terminal to prematurely abandon the possible successful handover attempt and prematurely initiate the RRC connection reestablishment, resulting in network KPI deterioration, so the handover timing time lengths of the T304 timer should be different, but no related technical scheme has been proposed at present.
Disclosure of Invention
In view of this, in order to solve the existing technical problems, embodiments of the present invention provide:
a method of determining a handover timing time, comprising:
acquiring neighbor cell preamble resource configuration information;
calculating a switching timing time reference value according to the acquired neighbor preamble resource configuration information and a preset algorithm;
and determining the switching timing time according to the calculated switching timing time reference value and the system configuration.
In a specific embodiment, the neighbor preamble resource configuration information includes one or more of the following items: a PRACH configuration index, a leading maximum transmission time, and a hybrid automatic repeat request (HARQ) maximum transmission time of the Msg 3.
In one embodiment, determining the switching timing time according to the calculated switching timing time reference value and the system configuration includes:
and comparing the switching timing time reference value with the switching timing time supported by the system, and selecting the switching timing time supported by the system, wherein the switching timing time is not less than the switching timing time reference value, and the difference between the switching timing time reference value and the switching timing time reference value is not more than the difference between the switching timing time supported by other systems and the switching timing time reference value, as the switching timing time.
In a specific embodiment, when the neighboring cell resource configuration information changes, the switching timing time is re-determined.
The embodiment of the invention also provides a device for determining the switching timing time, which comprises the following steps: the device comprises an information acquisition module, a calculation module and a determination module; wherein,
the information acquisition module is used for acquiring preamble resource configuration information of the adjacent cell;
the computing module is used for computing a switching timing time reference value according to the acquired neighbor preamble resource configuration information and a preset algorithm;
and the determining module is used for determining the switching timing time according to the calculated switching timing time reference value and the system configuration.
In an embodiment, the information obtaining module is specifically configured to obtain one or more of the following: a PRACH configuration index, a leading maximum transmission time, and a hybrid automatic repeat request (HARQ) maximum transmission time of the Msg 3.
In an embodiment, the determining module is specifically configured to compare the handover timing time reference value with handover timing times supported by a system, and select a handover timing time supported by the system, where the handover timing time is not less than the handover timing time reference value and a difference between the handover timing time reference value and the handover timing time reference value is not greater than a difference between handover timing times supported by other systems and the handover timing time reference value, as the handover timing time.
In a specific embodiment, the determining module is further configured to re-determine the switching timing time when the neighboring cell resource configuration information changes.
The method and the device for determining the switching timing time in the embodiment of the invention obtain the preamble resource configuration information of the adjacent cell; calculating a switching timing time reference value according to the acquired neighbor preamble resource configuration information and a preset algorithm; and determining the switching timing time according to the calculated switching timing time reference value and the system configuration. The embodiment of the invention can adaptively adjust the switching timing time based on the preamble resource configuration information of the adjacent region, thereby avoiding that the UE which needs to be subjected to link reconstruction in time can not be reconstructed in time due to overlarge switching timing time setting, improving the user perception, avoiding the switching failure due to the overlong switching timing time setting, and improving the network performance.
Drawings
Fig. 1 is a flowchart illustrating a method for determining a handover timing time according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an apparatus for determining a handover timing according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for determining a handover timing time according to embodiment 1 of the present invention.
Detailed Description
In order to avoid that a UE that should perform link reestablishment in time cannot reestablish in time due to an excessively large switching timing time setting and avoid a handover failure due to an excessively small switching timing time setting, an embodiment of the present invention provides a method for determining a switching timing time, where as shown in fig. 1, the method includes:
step 101: acquiring neighbor preamble resource configuration information;
step 102: calculating a switching timing time reference value according to the acquired neighbor preamble resource configuration information and a preset algorithm;
step 103: and determining the switching timing time according to the calculated switching timing time reference value and the system configuration.
It should be noted that the switching timing time described in the embodiment of the present invention corresponds to the timing time of the timer T304.
In a specific embodiment, the neighbor preamble resource configuration information includes one or more of the following items: physical random access channel PRACH configuration index (RACH-configdivided), preamble maximum number of transmissions (preambleTransMax), hybrid automatic repeat request HARQ maximum number of transmissions of Msg3 (maxHARQ-Msg3 Tx). Wherein:
RACH-configDedicated belongs to RACH configuration information, and a value of PRACH configuration index configuration is valid only when PRACH configuration index configuration indication is equal to CFG; otherwise, the value configured by the PRACH configuration index is invalid; preambleTransMax belongs to RACH configuration information; maxHARQ-Msg3Tx belongs to RACH configuration information.
It should be noted that, in step 102, the handover timing time reference value is calculated according to the obtained preamble resource configuration information of the neighboring cell and the preset algorithm, that is, the time required by the flows related to these parameters is considered uniformly through RACH-configdetermined configured in the neighboring cell and other information such as preamble transmax, maxHARQ-Msg3Tx and other basic information, and then the time required by the access process in the new cell is calculated uniformly as the handover timing time reference value in combination with the time related to the related flows.
In one embodiment, the determining the switching timing time according to the calculated switching timing time reference value and the system configuration in step 103 includes:
and comparing the switching timing time reference value with the switching timing time supported by the system, and selecting the switching timing time supported by the system, wherein the switching timing time is not less than the switching timing time reference value, and the difference between the switching timing time reference value and the switching timing time reference value is not more than the difference between the switching timing time supported by other systems and the switching timing time reference value, as the switching timing time. Here, the latency supported by T304 may include 50ms, 100ms, 150ms, 200ms, 500ms, 1000ms, 2000ms, depending on the system configuration.
In a specific embodiment, when the neighboring cell resource configuration information changes, the switching timing time is re-determined.
The embodiment of the present invention further provides a device for determining a switching timing time, as shown in fig. 2, the device includes: an information acquisition module 21, a calculation module 22 and a determination module 23; wherein,
the information obtaining module 21 is configured to obtain preamble resource configuration information of the neighboring cell;
the calculating module 22 is configured to calculate a switching timing time reference value according to the acquired neighbor preamble resource configuration information and a preset algorithm;
the determining module 23 is configured to determine the switching timing time according to the calculated switching timing time reference value and the system configuration.
In an embodiment, the information obtaining module 21 is specifically configured to obtain one or more of the following: a PRACH configuration index, a leading maximum transmission time, and a hybrid automatic repeat request (HARQ) maximum transmission time of the Msg 3.
In an embodiment, the determining module 23 is specifically configured to compare the handover timing time reference value with the handover timing times supported by the systems, and select a handover timing time supported by the systems, which is not less than the handover timing time reference value and has a difference with the handover timing time reference value that is not greater than a difference between the handover timing times supported by other systems and the handover timing time reference value, as the handover timing time.
In a specific embodiment, the determining module 23 is further configured to re-determine the switching timing time when the neighboring cell resource configuration information changes.
The technical solution of the present invention is further described in detail by the following specific examples.
Example 1
Fig. 3 is a schematic flowchart of a method for determining a handover timing time according to embodiment 1 of the present invention, and as shown in fig. 3, the flowchart includes:
step 301: and obtaining RACH-configDedcated configuration information.
The setting of T304 needs to take the above three factors into consideration to set a reasonable value to ensure that each parameter relates to the execution of a specific flow, otherwise, either partial parameter setting is invalid or excessive redundancy delay is caused to affect the timeliness of the terminal initiating the reconstruction.
The RACH-configDedcred configuration information relates to whether the Msg1 of the terminal initiates random access is collided, if the configuration information is based on competition, collision is likely to occur, and the requirement of Mac content resolution naturally exists, namely the configuration of another Timer value is required, namely the configuration of a Mac-contentResolutiontimer; after the Mac-ContentionResolution Timer times out, the terminal will retry to initiate Msg1 (if the Msg1 transmission times do not exceed the maximum configured times on the network side), and the setting of the T304 timing time needs to take the Timer into account.
Step 302: and acquiring PremapleTransMax configuration information.
The prematchmax configuration information relates to the maximum number of times that the terminal can try to send the Preamble number, for example, the time from each Preamble to the next Preamble is 10-20 ms (there is a dynamic range decision and a backoff delay of the terminal itself), and if the network configures the maximum number of times that the terminal sends is 8 times, the setting of the T304 timing time needs to consider the time required by the terminal to complete all attempts.
Step 303: and acquiring the configuration information of the maxHARQ-Msg3 Tx.
The maxHARQ-Msg3Tx configuration information relates to the time delay that the terminal can delay in the uplink access and uplink synchronization process. Since the Msg3 supports HARQ, the maximum retransmission number configured on the network side affects the maximum time required for successful transmission of Msg3, and the setting of the T304 timing time needs to take the retransmission number into account.
Step 304: and checking basic configuration information related to the existing network LTE cell T304 timer, and acquiring duration setting of all LTE cell T304 timers of the existing network.
Step 305: and performing time delay evaluation on the access process of the new cell, namely calculating a switching timing time reference value according to an algorithm preset by the acquired configuration information machine.
The access delay of the Attach, the delay of the UE from idle state to active state, and the user plane delay may be referred to, where the delay of the new cell access process is mainly referred to for evaluating the delay of the UE from idle state to active state, and this indicator represents the time of the UE from idle state to active state, and directly affects the delay of the processes such as call setup (E-RAB), TAU, etc., and is one of the important indicators for measuring the user network access delay experience.
Step 306: and determining the switching timing time according to the calculated switching timing time reference value and the system configuration.
Specifically, the switching timing time reference value is compared with the waiting time of a timer (T304) supported by the system, and the switching timing time supported by the system, which is not less than the switching timing time reference value and has a difference value with the switching timing time reference value not greater than the difference value between the switching timing time supported by other systems and the switching timing time reference value, is selected as the switching timing time.
It should be noted that the handover timing time may also be set by directly referring to the configuration of the preamble in the neighboring cell, for example, the contention-based configuration is 500ms, and the non-contention-based configuration is 200 ms.
According to the above description, the timer T304 in the LTE network may set different waiting times based on the difference of the neighboring cell resource configurations, and the waiting time of the timer T304 may be adaptively adjusted along with the change of the neighboring cell configuration information, so that the problem that when the timer waiting time is set too long, the handover failure cannot be timely backed off and an RRC connection reestablishment process is initiated, and when the timer waiting time is set too short, the terminal prematurely abandons a handover attempt that may be successful and initiates an RRC connection reestablishment prematurely, which causes network KPI to deteriorate, may be solved. In addition, the method considers the main factors influencing the random access delay, and fully considers the factors to set the T304 waiting time length so as to effectively improve the robustness of the network and the user experience.
Each Unit may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), or a Programmable logic Array (FPGA) in the electronic device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (6)
1. A method of determining a handover timing time, the method comprising:
acquiring neighbor cell preamble resource configuration information;
calculating a switching timing time reference value according to the acquired neighbor preamble resource configuration information and a preset algorithm;
determining a switching timing time according to the calculated switching timing time reference value and system configuration, including:
and comparing the switching timing time reference value with the switching timing time supported by the system, and selecting the switching timing time supported by the system, wherein the switching timing time is not less than the switching timing time reference value, and the difference between the switching timing time reference value and the switching timing time reference value is not more than the difference between other switching timing time supported by the system and the switching timing time reference value, as the switching timing time.
2. The method of claim 1, wherein the neighbor preamble resource configuration information includes one or more of: a PRACH configuration index, a leading maximum transmission time, and a hybrid automatic repeat request (HARQ) maximum transmission time of the Msg 3.
3. The method according to any of claims 1 to 2, wherein the handover timing time is re-determined when the neighbor cell resource configuration information changes.
4. An apparatus for determining a timing of a handover, the apparatus comprising: the device comprises an information acquisition module, a calculation module and a determination module; wherein,
the information acquisition module is used for acquiring preamble resource configuration information of the adjacent cell;
the computing module is used for computing a switching timing time reference value according to the acquired neighbor preamble resource configuration information and a preset algorithm;
the determining module is used for determining the switching timing time according to the calculated switching timing time reference value and the system configuration;
the determining module is specifically configured to compare the handover timing time reference value with a handover timing time supported by a system, and select a handover timing time supported by the system, where the handover timing time is not less than the handover timing time reference value and a difference between the handover timing time reference value and the handover timing time reference value is not greater than a difference between other handover timing times supported by the system and the handover timing time reference value, as the handover timing time.
5. The apparatus of claim 4,
the information acquisition module is specifically configured to acquire one or more of the following: a PRACH configuration index, a leading maximum transmission time, and a hybrid automatic repeat request (HARQ) maximum transmission time of the Msg 3.
6. The apparatus according to any one of claims 4 to 5,
the determining module is further configured to re-determine the switching timing time when the neighboring cell resource configuration information changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510140210.5A CN106162762B (en) | 2015-03-27 | 2015-03-27 | A kind of method and device of determining switching timing time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510140210.5A CN106162762B (en) | 2015-03-27 | 2015-03-27 | A kind of method and device of determining switching timing time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106162762A CN106162762A (en) | 2016-11-23 |
| CN106162762B true CN106162762B (en) | 2019-07-02 |
Family
ID=57339726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510140210.5A Active CN106162762B (en) | 2015-03-27 | 2015-03-27 | A kind of method and device of determining switching timing time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106162762B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108668297B (en) * | 2017-03-29 | 2021-11-02 | 中国移动通信集团贵州有限公司 | Method, device and system for adjusting wireless switching timer |
| WO2018230997A1 (en) * | 2017-06-15 | 2018-12-20 | Lg Electronics Inc. | Method for performing a handover procedure in a wireless communication system and a device therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572920A (en) * | 2008-04-28 | 2009-11-04 | 中兴通讯股份有限公司 | Method for improving service efficiency of special leader sequence and terminal switching method |
| CN101998488A (en) * | 2009-08-20 | 2011-03-30 | 中兴通讯股份有限公司 | Method and device for setting longest preserve time of special random access preamble |
| CN102076042A (en) * | 2011-02-01 | 2011-05-25 | 华为技术有限公司 | Method for switching terminal, and terminal |
| CN103298049A (en) * | 2012-03-05 | 2013-09-11 | 中兴通讯股份有限公司 | Method and device for processing timer switching |
| CN103329595A (en) * | 2010-08-13 | 2013-09-25 | 捷讯研究有限公司 | Handover latency reduction |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102550068B (en) * | 2009-10-02 | 2016-02-10 | 三菱电机株式会社 | Mobile communication system |
-
2015
- 2015-03-27 CN CN201510140210.5A patent/CN106162762B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572920A (en) * | 2008-04-28 | 2009-11-04 | 中兴通讯股份有限公司 | Method for improving service efficiency of special leader sequence and terminal switching method |
| CN101998488A (en) * | 2009-08-20 | 2011-03-30 | 中兴通讯股份有限公司 | Method and device for setting longest preserve time of special random access preamble |
| CN103329595A (en) * | 2010-08-13 | 2013-09-25 | 捷讯研究有限公司 | Handover latency reduction |
| CN102076042A (en) * | 2011-02-01 | 2011-05-25 | 华为技术有限公司 | Method for switching terminal, and terminal |
| CN103298049A (en) * | 2012-03-05 | 2013-09-11 | 中兴通讯股份有限公司 | Method and device for processing timer switching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106162762A (en) | 2016-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210168894A1 (en) | State transitions for idle mode transmissions using pre-configured dedicated resources | |
| US20230363009A1 (en) | Data transmission method and apparatus, and computer readable storage medium | |
| KR102557593B1 (en) | Beam failure recovery method and user terminal | |
| CN110022607B (en) | Beam failure recovery method, device and equipment | |
| US8773987B2 (en) | Method, device, and system for judging random access contention resolution | |
| EP2894924B1 (en) | Method and base station for reallocation of resources | |
| JP7486471B2 (en) | User Equipment, Methods and Integrated Circuits | |
| WO2019138284A1 (en) | Contention based random access for beam failure recovery | |
| JP7069395B2 (en) | Random access method and terminal | |
| US20210400736A1 (en) | Uplink transmission method and device, computer readable storage medium and terminal | |
| JP2009201114A (en) | Method and apparatus for improving random access procedure for handover | |
| US10143012B2 (en) | Random access procedure in wireless device, radio base station and methods therein | |
| WO2019228298A1 (en) | Data transmission method, parameter optimization method and apparatus, and device | |
| WO2020140936A1 (en) | Random access method, terminal, and network device | |
| WO2022206668A1 (en) | Random access information reporting method and user equipment | |
| CN106162762B (en) | A kind of method and device of determining switching timing time | |
| CN113728718A (en) | Random access procedure for unlicensed portions of bandwidth | |
| KR101984678B1 (en) | Resource reuse apparatus, user equipment, and method | |
| CN110049577B (en) | Method and device for reestablishing Radio Resource Control (RRC) | |
| TWI824322B (en) | Small data transmission procedure to random access procedure fallback | |
| KR102449111B1 (en) | Access control method and related product | |
| WO2019136631A1 (en) | Random access techniques in wireless networks | |
| WO2020156188A1 (en) | Random access method, device and apparatus | |
| CN111526597B (en) | Two-step random access method, equipment and device | |
| RU2791244C1 (en) | Random access method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |