CN110392441A - Accidental access method and device - Google Patents
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- CN110392441A CN110392441A CN201810343281.9A CN201810343281A CN110392441A CN 110392441 A CN110392441 A CN 110392441A CN 201810343281 A CN201810343281 A CN 201810343281A CN 110392441 A CN110392441 A CN 110392441A
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- 238000000034 method Methods 0.000 title claims abstract description 171
- 230000000977 initiatory effect Effects 0.000 claims abstract description 56
- 230000008569 process Effects 0.000 claims description 63
- 238000004891 communication Methods 0.000 claims description 23
- 230000011664 signaling Effects 0.000 claims description 7
- 230000000153 supplemental effect Effects 0.000 claims description 6
- 239000013589 supplement Substances 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000010295 mobile communication Methods 0.000 description 9
- 230000004044 response Effects 0.000 description 7
- 238000004590 computer program Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 101150096310 SIB1 gene Proteins 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
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- 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
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Abstract
The embodiment of the present invention discloses accidental access method and device.Wherein, which comprises pass through uplink initiating random access procedure；If initiating the random access procedure by the uplink to fail, the random access procedure is initiated by supplement uplink.Described device is for executing the above method.Accidental access method and device provided in an embodiment of the present invention, since uplink initiating random access procedure can be passed through, and after through the failure of uplink initiating random access procedure, by supplementing uplink initiating random access procedure, the success rate of random access procedure is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of mobile communication, in particular to a random access method and a random access device.
Background
With the popularization of devices such as smart phones and tablet computers, the demand of people for mobile communication is increasing day by day.
The random access technology is an important technology in mobile communication, and is an access process before User Equipment (UE) performs mobile communication, and is mainly used for initial registration of a User and application of a User resource broadband. The random access procedure may be divided into a contention mode random access and a non-contention mode random access. Fig. 1 is a communication flow diagram of a contention-based mode random access procedure in the prior art, as shown in fig. 1, a UE transmits a random access preamble to a base station through an uplink; the method comprises the steps that UE receives a Random Access Channel (RAR) on a downlink, after the UE sends a Random Access preamble, the UE monitors a packet dedicated control Channel by taking a Random Access Radio Network Temporary Identifier (RA-RNTI) as an Identifier in a Random Access Response window, and thus receives the RAR from a base station, wherein the Random Access Response window is a time period; after receiving the RAR, the UE sends an uplink message to the base station through an uplink, wherein the uplink message comprises a competition resolution identification used for the next step in the random access process; and the UE receives a competition resolution message returned by the base station through a downlink, wherein the competition resolution message carries a competition resolving identifier sent by the UE. And if the UE does not receive the RAR within the preset time, the UE sends the random access lead code to the base station again, and the UE stops the random access process until the times that the UE receives the RAR or sends the random access lead code reach the limit times, wherein the preset time corresponds to the random access response window. If the UE does not receive the RAR when the number of times of sending the random access preamble reaches the limit number, the random access fails. In the prior art, a downlink of a cell only corresponds to an uplink, and when the random access fails, the UE can only wait for the next random access.
Therefore, how to provide a random access method to improve the success rate of UE random access is an important issue to be solved in the industry.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the invention provides a random access method and a random access device.
In a first aspect, an embodiment of the present invention provides a random access method, including:
initiating a random access procedure over an uplink;
and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
In a second aspect, the present invention further provides a random access method, including:
if the signal quality of the uplink is larger than or equal to the threshold value, initiating a random access process through the uplink;
and if the signal quality of the uplink is less than the threshold value, initiating the random access process through a supplementary uplink.
In a third aspect, the present invention provides a random access apparatus, including:
an initiating unit, configured to initiate a random access procedure through an uplink;
a first determining unit, configured to initiate the random access procedure through a supplemental uplink if the initiation of the random access procedure through the uplink fails.
In a fourth aspect, the present invention further provides a random access apparatus, including:
a second determining unit, configured to initiate a random access procedure through an uplink if the signal quality of the uplink is greater than or equal to a threshold;
a third determining unit, configured to initiate the random access procedure through a supplemental uplink if the signal quality of the uplink is less than the threshold.
In a fifth aspect, the present invention provides an electronic device, comprising: a first processor, a first memory, and a first communication bus, wherein:
the first processor and the first memory complete mutual communication through the first communication bus;
the first memory stores program instructions executable by the first processor, the first processor invoking the program instructions to perform a random access method capable of:
initiating a random access procedure over an uplink;
and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
In a sixth aspect, the present invention provides a non-transitory computer readable storage medium storing first computer instructions that cause the computer to perform a random access method capable of:
initiating a random access procedure over an uplink;
and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
In a seventh aspect, the present invention provides an electronic device, comprising: a second processor, a second memory, and a second communication bus, wherein:
the second processor and the second memory complete mutual communication through the second communication bus;
the second memory stores program instructions executable by the second processor, the second processor invoking the program instructions to perform a random access method:
if the signal quality of the uplink is larger than or equal to the threshold value, initiating a random access process through the uplink;
and if the signal quality of the uplink is less than the threshold value, initiating the random access process through a supplementary uplink.
In an eighth aspect, the present invention provides a non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores second computer instructions that enable the computer to perform a random access method comprising:
if the signal quality of the uplink is larger than or equal to the threshold value, initiating a random access process through the uplink;
and if the signal quality of the uplink is less than the threshold value, initiating the random access process through a supplementary uplink.
The random access method and the random access device provided by the embodiment of the invention can initiate the random access process through the uplink, and after the random access process initiated through the uplink fails, the random access process is initiated through the supplementary uplink, so that the success rate of the random access is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a communication flow diagram of a contention-based mode random access procedure of the prior art;
fig. 2 is a flowchart illustrating a random access method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a random access method according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a random access apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a random access device according to another embodiment of the present invention;
FIG. 6 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention;
fig. 7 is a schematic physical structure diagram of an electronic device according to another embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the embodiments of the present invention.
In order to meet the increasing communication demand, in the future 5G system, a Supplementary Uplink (SUL) is introduced on the basis of the existing Uplink (UL) to expand the Uplink coverage, and the frequency used by the Supplementary Uplink is lower than that used by the Uplink. Due to the introduction of the SUL, a Downlink (DL) of one cell may correspond to both UL and SUL. Therefore, the embodiment of the present invention provides a random access method, which can initiate a random access procedure through the SUL when a random access procedure initiated through the UL fails, so as to improve a success rate of the random access procedure.
Fig. 2 is a schematic flowchart of a random access method according to an embodiment of the present invention, and as shown in fig. 2, the random access method according to the embodiment of the present invention includes:
s201, initiating a random access process through an uplink;
specifically, the random access apparatus transmits a random access preamble to the base station through an uplink before performing mobile communication, thereby initiating a random access procedure through the UL. The random access device comprises wireless communication equipment such as UE.
S202, if the random access process initiated by the uplink fails, initiating the random access process by a supplementary uplink.
Specifically, after the random access apparatus transmits the random access preamble, if the RAR is not received within a random access response window, the random access apparatus retransmits the random access preamble to the base station, and if the number of times that the random access apparatus transmits the random access preamble reaches a preset number of times and the random access apparatus still does not receive the RAR, the random access apparatus fails to initiate the random access procedure through the UL. The random access device may transmit the random access preamble to the base station through the SUL, thereby initiating the random access procedure through the SUL. If the random access device receives the RAR from the base station within a preset time after transmitting the random access preamble through the SUL, or receives the RAR when the number of times of transmitting the random access preamble is less than or equal to the preset number of times, the random access device performs a subsequent step of a random access process based on a contention mode. The preset time and the preset times are configured by the network side according to actual experience, and the embodiment of the invention is not limited.
For example, when the UE is just powered on or moves from the cell a to the cell B, the UE needs to go through a random access procedure to establish a connection with the base station C of the cell B, so as to access the mobile communication network. When the UE is located at the edge of the cell B, after the UE sends the random access preamble to the base station C through the UL, due to the influence of interference and the like existing in the actual communication environment, the base station C does not receive the random access preamble sent by the UE, and the UE does not receive the RAR in the random access response window, and the UE does not receive the RAR when the number of times of sending the random access preamble reaches the preset number of times, and then the UE sends the random access preamble to the base station C through the SUL.
The random access method provided by the embodiment of the invention can initiate the random access process through the uplink, and after the random access process initiated through the uplink fails, the random access process is initiated through the supplementary uplink, so that the success rate of the random access process is improved.
On the basis of the foregoing embodiments, further, the random access method provided in the embodiments of the present invention further includes:
and if the times of initiating the random access process through the supplementary uplink reach preset times, confirming that the random access fails.
Specifically, if the RAR is not received within the preset time after the random access apparatus transmits the random access preamble through the SUL, the random access apparatus retransmits the random access preamble to the base station, and re-initiates the random access procedure. If the number of times that the random access device initiates the random access procedure through the SUL reaches the preset number of times, and the random access device does not receive RAR before the number of times that the random access device initiates the random access procedure through the SUL reaches the preset number of times, the random access fails. The random access device may notify a higher layer, that is, a Radio Resource Control (RRC) layer, that the random access fails.
Fig. 3 is a flowchart illustrating a random access method according to another embodiment of the present invention, and as shown in fig. 3, the random access method according to the embodiment of the present invention includes:
s301, if the signal quality of an uplink is greater than or equal to a threshold value, initiating a random access process through the uplink;
specifically, before performing mobile communication, the random access apparatus may obtain a Received Signal Strength Indication (RSSI) value of an uplink through measurement, use the RSSI value of the uplink as the Signal quality of the uplink, then compare the Signal quality of the uplink with a threshold, and if the Signal quality of the uplink is greater than or equal to the threshold, send the random access preamble to a base station through an UL to initiate the random access procedure. Wherein the threshold is preset or the random access device is obtained through a system message or a radio resource control signaling.
S302, if the signal quality of the uplink is smaller than the threshold value, initiating the random access process through a supplementary uplink.
Specifically, the random access apparatus compares the signal quality of the uplink with the threshold, and if the signal quality of the uplink is less than the threshold, the random access apparatus transmits the random access preamble to the base station through the SUL to initiate the random access procedure through the SUL.
It is understood that it is a critical state that the signal quality of the uplink is equal to the threshold, and when the signal quality of the uplink is equal to the threshold, the random access device may initiate the random access procedure through UL or initiate the random access procedure through SUL.
For example, when the UE is close to the center of the cell D, since the distance between the UE and the base station of the cell D is close, the signal quality of UL measured by the UE is greater than the threshold, which indicates that the network signal coverage is better at the current location of the UE, and the UE may initiate the random access procedure through UL; when the UE is located at the edge of the cell D, because the distance between the UE and the base station of the cell D is long, the signal quality of the UL measured by the UE is smaller than the threshold, which indicates that the network signal coverage is poor at the current location of the UE, and the UE may initiate the random access process through the SUL, so as to improve the success rate of the random access.
The random access method provided by the embodiment of the invention compares the signal quality of the uplink with the threshold, initiates the random access process through the uplink when the signal quality of the uplink is greater than or equal to the threshold, and initiates the random access process through the supplementary uplink when the signal quality of the uplink is less than the threshold, thereby improving the success rate of the random access process.
On the basis of the foregoing embodiments, further, the random access method provided in the embodiments of the present invention further includes:
and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
Specifically, after the random access apparatus transmits the random access preamble, if the RAR is not received within a random access response window, the random access apparatus retransmits the random access preamble to the base station, and if the number of times that the random access apparatus transmits the random access preamble reaches a preset number of times and the random access apparatus still does not receive the RAR, the random access apparatus fails to initiate the random access procedure through the UL. The random access device may transmit the random access preamble to the base station through the SUL, thereby initiating the random access procedure through the SUL.
On the basis of the foregoing embodiments, further, the random access method provided in the embodiments of the present invention further includes:
and if the times of initiating the random access process through the supplementary uplink reach preset times, confirming that the random access fails.
Specifically, if the RAR is not received within the preset time after the random access apparatus transmits the random access preamble through the SUL, the random access apparatus retransmits the random access preamble to the base station, and re-initiates the random access procedure. If the number of times that the random access device initiates the random access procedure through the SUL reaches the preset number of times, and the random access device does not receive RAR before the number of times that the random access device initiates the random access procedure through the SUL reaches the preset number of times, the random access fails. The random access device may notify the higher layer of the random access failure.
On the basis of the foregoing embodiments, further, the threshold is obtained through a system message or radio resource control signaling; or,
the threshold is preset.
Specifically, the threshold may be preset according to Media Access Control (MAC) protocol specification, or obtained through a system message (for example, SIB1) or radio resource Control signaling (for example, RRC connection setup message). The threshold may be obtained through the system message when a random access procedure for initial access is requested, and may be obtained through radio resource control signaling when other contention-based random access procedures are requested. It is to be understood that the threshold is configured in the system message and the radio resource control signaling.
Fig. 4 is a schematic structural diagram of a random access apparatus according to an embodiment of the present invention, and as shown in fig. 4, the random access apparatus according to the embodiment of the present invention includes an initiating unit 401 and a first determining unit 402, where:
the initiating unit 401 is configured to initiate a random access procedure through an uplink; the first determining unit 402 is configured to initiate the random access procedure through a supplemental uplink if the initiation of the random access procedure through the uplink fails.
Specifically, before performing mobile communication, the initiating unit 401 transmits a random access preamble to the base station through an uplink, thereby initiating a random access procedure through the UL.
After sending the random access preamble, if the first determining unit 402 does not receive RAR within the random access response window, the random access preamble is sent to the base station again, and if the number of times that the first determining unit 402 sends the random access preamble reaches a preset number, and the first determining unit 402 still does not receive RAR, the initiation of the random access procedure through UL fails. The first judging unit 402 may send the random access preamble to the base station through the SUL, so as to initiate the random access procedure through the SUL. If the first determining unit 402 receives the RAR from the base station within a preset time after transmitting the random access preamble through the SUL, or receives the RAR when the number of times of transmitting the random access preamble is less than or equal to the preset number of times, the first determining unit 402 performs a subsequent step of a contention mode based random access procedure. The preset time and the preset times are set according to actual experience, and the embodiment of the invention is not limited.
The random access device provided by the embodiment of the invention can initiate the random access process through the uplink, and after the random access process initiated through the uplink fails, the random access process is initiated through the supplementary uplink, so that the success rate of the random access process is improved.
Fig. 5 is a schematic structural diagram of a random access apparatus according to another embodiment of the present invention, and as shown in fig. 5, the random access apparatus according to the embodiment of the present invention includes a second determining unit 501 and a third determining unit 502, where:
the second determining unit 501 is configured to initiate a random access procedure through an uplink if the signal quality of the uplink is greater than or equal to a threshold; the third determining unit 502 is configured to initiate the random access procedure through a supplemental uplink if the signal quality of the uplink is less than the threshold.
Specifically, before performing mobile communication, the second determining unit 501 may obtain an RSSI value of an uplink through measurement, use the RSSI value of the uplink as the signal quality of the uplink, then compare the signal quality of the uplink with a threshold, and if the signal quality of the uplink is greater than or equal to the threshold, the second determining unit 501 transmits the random access preamble to the base station through the UL to initiate the random access procedure. Wherein the threshold is preset or the second determining unit 501 obtains the threshold through a system message or a radio resource control signaling.
The third judging unit 502 compares the signal quality of the uplink with the threshold, and if the signal quality of the uplink is less than the threshold, the third judging unit 502 sends the random access preamble to the base station through the SUL to initiate the random access procedure through the SUL.
The random access device provided by the embodiment of the invention compares the signal quality of the uplink with the threshold, initiates the random access process through the uplink when the signal quality of the uplink is greater than or equal to the threshold, and initiates the random access process through the supplementary uplink when the signal quality of the uplink is less than the threshold, thereby improving the success rate of the random access process.
The embodiments of the random access apparatus provided in the embodiments of the present invention may be specifically configured to execute the processing flows of the above method embodiments, and the functions of the random access apparatus are not described herein again, and refer to the detailed description of the above method embodiments.
Fig. 6 is a schematic entity structure diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 6, the electronic device includes a first processor (processor)601, a first memory (memory)602, and a first communication bus 603;
the first processor 601 and the first memory 602 complete communication with each other through a first communication bus 603;
the first processor 601 is used to call program instructions in the first memory 602 to perform a method, for example, comprising: initiating a random access procedure over an uplink; and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
An embodiment of the invention discloses a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, the computer is capable of performing a method, for example comprising: initiating a random access procedure over an uplink; and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
Embodiments of the present invention provide a non-transitory computer readable storage medium storing first computer instructions that cause a computer to perform a method, for example, comprising: initiating a random access procedure over an uplink; and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink. .
Fig. 7 is a schematic physical structure diagram of an electronic device according to another embodiment of the present invention, as shown in fig. 7, the electronic device includes a second processor (processor)701, a second memory (memory)702, and a second communication bus 703;
the second processor 701 and the second memory 702 complete communication with each other through a second communication bus 703;
the second processor 701 is configured to call program instructions in the second memory 702 to perform a method, for example, comprising: if the signal quality of the uplink is larger than or equal to the threshold value, initiating a random access process through the uplink; and if the signal quality of the uplink is less than the threshold value, initiating the random access process through a supplementary uplink.
An embodiment of the invention discloses a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, the computer is capable of performing a method, for example comprising: if the signal quality of the uplink is larger than or equal to the threshold value, initiating a random access process through the uplink; and if the signal quality of the uplink is less than the threshold value, initiating the random access process through a supplementary uplink.
Embodiments of the present invention provide a non-transitory computer readable storage medium storing second computer instructions that cause the computer to perform a method, for example, comprising: if the signal quality of the uplink is larger than or equal to the threshold value, initiating a random access process through the uplink; and if the signal quality of the uplink is less than the threshold value, initiating the random access process through a supplementary uplink.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, an apparatus, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A random access method, comprising:
initiating a random access procedure over an uplink;
and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
2. The method of claim 1, further comprising:
and if the times of initiating the random access process through the supplementary uplink reach preset times, confirming that the random access fails.
3. A random access method, comprising:
if the signal quality of the uplink is larger than or equal to the threshold value, initiating a random access process through the uplink;
and if the signal quality of the uplink is less than the threshold value, initiating the random access process through a supplementary uplink.
4. The method of claim 3, further comprising:
and if the random access process initiated through the uplink fails, initiating the random access process through a supplementary uplink.
5. The method of claim 3 or 4, further comprising:
and if the times of initiating the random access process through the supplementary uplink reach preset times, confirming that the random access fails.
6. The method of claim 3, wherein the threshold is obtained through system messages or radio resource control signaling; or,
the threshold is preset.
7. A random access apparatus, comprising:
an initiating unit, configured to initiate a random access procedure through an uplink;
a first determining unit, configured to initiate the random access procedure through a supplemental uplink if the initiation of the random access procedure through the uplink fails.
8. A random access apparatus, comprising:
a second determining unit, configured to initiate a random access procedure through an uplink if the signal quality of the uplink is greater than or equal to a threshold;
a third determining unit, configured to initiate the random access procedure through a supplemental uplink if the signal quality of the uplink is less than the threshold.
9. An electronic device, comprising: a first processor, a first memory, and a first communication bus, wherein:
the first processor and the first memory complete mutual communication through the first communication bus;
the first memory stores program instructions executable by the first processor, the first processor invoking the program instructions to perform the method of claim 1 or 2.
10. A non-transitory computer-readable storage medium storing first computer instructions that cause a computer to perform the method of claim 1 or 2.
11. An electronic device, comprising: a second processor, a second memory, and a second communication bus, wherein:
the second processor and the second memory complete mutual communication through the second communication bus;
the second memory stores program instructions executable by the second processor, the second processor invoking the program instructions to perform the method of any of claims 3 to 6.
12. A non-transitory computer-readable storage medium storing second computer instructions that cause a computer to perform the method of any one of claims 3 to 6.
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| WO2021170110A1 (en) * | 2020-02-28 | 2021-09-02 | 华为技术有限公司 | Communication method and apparatus |
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| Title |
|---|
| ERICSSON: "Random Access Fallback to SUL", 《3GPP TSG-RAN WG2 NR AH#3 TDOC R2-1800686》 * |
| XIAOMI: "Random access failure consideration for SUL", 《3GPP TSG-RAN2 NR AH-1801 R2-1800236 》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021170110A1 (en) * | 2020-02-28 | 2021-09-02 | 华为技术有限公司 | Communication method and apparatus |
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