CN115996484A - Wireless connection reestablishing method and device, electronic equipment and storage medium - Google Patents
Wireless connection reestablishing method and device, electronic equipment and storage medium Download PDFInfo
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- CN115996484A CN115996484A CN202111211939.9A CN202111211939A CN115996484A CN 115996484 A CN115996484 A CN 115996484A CN 202111211939 A CN202111211939 A CN 202111211939A CN 115996484 A CN115996484 A CN 115996484A
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Abstract
The embodiment of the disclosure provides a wireless connection reestablishing method, a wireless connection reestablishing device, electronic equipment and a storage medium. Wherein the method comprises the following steps: the user equipment sends a connection reestablishment request message to a network side; the user equipment receives a response message of the network side to the connection reestablishment request, wherein the response message carries uplink authorization; and the user equipment sends a connection reestablishment completion message to the network side according to the uplink grant. According to the wireless connection reestablishment scheme provided by the implementation of the present disclosure, through optimizing the service flow, the delay of the connection reestablishment process can be effectively reduced, the user data transmission rate can be recovered as soon as possible, and the user experience is significantly improved.
Description
Technical Field
The present invention relates to, but not limited to, the field of mobile communications, and in particular, to a wireless connection reestablishing method, apparatus, electronic device, and storage medium.
Background
In the field of mobile communication, whether LTE, 5G or future evolution systems, wireless connection reconfiguration is an important ring for guaranteeing mobile communication quality. In the related specification, there is a basic flow definition for the radio connection reestablishment process. How to continuously optimize the process, further shortening the communication delay is an important aspect of further improving the communication quality.
Disclosure of Invention
The embodiment of the disclosure provides a wireless connection reestablishing method, a device, electronic equipment and a storage medium, which can effectively reduce the delay of a wireless connection reestablishing process, recover the user data transmission rate as soon as possible and remarkably improve the user experience by optimizing a service flow.
The embodiment of the disclosure provides a wireless connection reestablishing method, which comprises the following steps:
the user equipment sends a connection reestablishment request message to a network side;
the user equipment receives a response message of the network side to the connection reestablishment request message, wherein the response message carries uplink authorization;
and the user equipment sends a connection reestablishment completion message to the network side according to the uplink grant.
The embodiment of the disclosure also provides a wireless connection reestablishing method, which comprises the following steps:
receiving a connection reestablishment request message sent by user equipment;
transmitting a response message to the connection reestablishment request message to the user equipment according to the connection reestablishment request message;
receiving a connection reestablishment completion message sent by the user equipment;
wherein the response message carries an uplink grant.
The embodiment of the disclosure also provides a wireless connection reestablishing device, which comprises:
the request module is configured to send a connection reestablishment request message to the network side;
the receiving module is configured to receive a response message of the network side to the connection reestablishment request message, wherein the response message carries uplink authorization;
and the reestablishment module is used for sending a connection reestablishment completion message to the network side according to the uplink authorization.
The embodiment of the disclosure also provides a wireless connection reestablishing device, which comprises:
the receiving module is used for receiving a connection reestablishment request message sent by the user equipment;
a sending module, configured to send a response message to the connection reestablishment request message to the user equipment according to the connection reestablishment request message;
the response module is used for receiving a connection reestablishment completion message sent by the user equipment;
wherein the response message carries an uplink grant.
The embodiment of the disclosure also provides an electronic device, including:
one or more processors;
storage means for storing one or more programs,
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement a wireless connection reestablishment method as described in any one of the embodiments of the present disclosure.
The embodiments of the present disclosure also provide a computer readable storage medium having a computer program stored thereon, wherein the program when executed by a processor implements a wireless connection reestablishment method according to any of the embodiments of the present disclosure.
Other aspects will become apparent upon reading and understanding the accompanying drawings and detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a wireless connection reestablishing method in a related scheme;
fig. 2 is a flow chart of another wireless connection reestablishment method in a related aspect;
fig. 3 is a flowchart of a wireless connection reestablishment method according to an embodiment of the disclosure;
fig. 4 is a flowchart of another wireless connection reestablishment method according to an embodiment of the present disclosure;
fig. 5 is a flowchart of another wireless connection reestablishment method according to an embodiment of the present disclosure;
fig. 6 is a block diagram of a wireless connection reestablishing device according to an embodiment of the present disclosure;
fig. 7 is a block diagram of another wireless connection reestablishment device according to an embodiment of the present disclosure.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
Before the embodiments are described in detail, abbreviations for the relevant terms referred to in this disclosure are as follows:
in a related art design implementation scheme of the UE NR protocol stack, after the UE satisfies a condition for triggering RRC connection reestablishment, the UE triggers an RRC connection reestablishment process, AS shown in fig. 1, firstly, the RRC sends an rrcresitaglessrequest to the AS DP, the AS DP sends the message to the PHY, then the PHY sends the message to the network, after the network receives the rrcresitaglessrequest, the network sends the rrcresitaglessent to the UE, the PHY sends the message to the RRC layer through the AS DP after receiving the rrcresitaglessprior, after the RRC layer performs a related process, sends the rrcresitaglesscomplete to the AS DP, the AS DP buffers the message in a data buffer, and since the rrcresitaglessure does not carry the configuration of the resource, the network must send the UL to the UE through the PDCCH in an appropriate time after the rrcresitaglessure is sent to the UE for the UE to send RRCReestablishmentComplete, PHY, the PHY sends the message to the RRC layer, and the AS DP sends the message to the PHY to the AS DP after the RRC layer performs a related process, and the AS DP sends the message to the rrcresitaglesscomplete to the data buffer in the data buffer.
After the network transmits rrcreestablischent, the network must transmit UL grant to the UE for the UE to transmit rrcreestablischentcomplete in an appropriate time after rrcreestablischent is transmitted, which is difficult to regulate. If the network sends UL grant immediately after rrcreestablight is sent, this will result in that when the AS DP receives the UL grant, RRC has not sent rrcreestablight complete to AS DP, and AS there is no data in the data buffer, AS specified by the protocol, AS DP will ignore the received UL grant, after RRC processes rrcreestablight, and after rrcreestablight is sent to AS DP, AS there is no UL grant sent by the network, AS the data to be sent in the data buffer reaches a certain time limit, AS DP needs to initiate a random access procedure, AS shown in fig. 2; after the random access procedure is successful, the rrcreestablischentcomplete may be sent to the network.
It can be seen that, in the related technical solution, when the network sends the RRCReestablishment, the UL grant is sent immediately, which increases the RRC random access procedure with a high probability, and generally the RRC random access procedure may take tens of milliseconds to hundreds of milliseconds to be different, so as to increase the delay of the network receiving the rrcreestablishentity; if the network transmits the UL grant a fixed longer time after transmitting the rrcreestablishent, although the RRC random access procedure can be avoided, it is apparent that this fixed longer time also increases the delay of the network to receive the rrcreestablishcomplete. It can be understood that, in the RRC connection reestablishment procedure defined in the related technical solution, the delay of the RRC connection reestablishment completed as a whole is long, and there is a large space for optimization.
In the description of the embodiments of the present disclosure, AS DP, RRC, and PHY refer to related processing units of the UE NR protocol stack, which are also referred to AS DP processing units, RRC processing units, and PHY processing units.
An embodiment of the present disclosure provides a wireless connection reestablishing method, as shown in fig. 3, including:
step 301, a user equipment UE sends a connection reestablishment request message to a network;
step 302, the UE receives a response message of the network side to the connection reestablishment request message, where the response message carries an uplink grant ULGrant;
step 303, the UE sends a connection reestablishment completion message to the network side according to the uplink grant ULGrant.
In some exemplary embodiments, the connection reestablishment request message is a radio resource control RRC connection reestablishment request message RRCReestablishmentRequest; the response message of the connection reestablishment request is a response message RRCReeastablent of the RRC connection reestablishment request; the connection reestablishment completion message is an RRC connection reestablishment completion message rrcreestablishcomplete.
In some exemplary embodiments, step 301 is sending an RRCReestablishmentRequest message if a trigger radio resource control, RRC, connection reestablishment condition is met. The specific triggering RRC connection reestablishment conditions include a number of situations defined in the relevant specifications, the skilled person will be aware of specific aspects thereof, which are not specifically discussed herein. For example, a handover failure, a radio link failure, an integrity protection failure, an RRC reconfiguration failure, etc., may trigger an RRC connection reestablishment.
In some exemplary embodiments, the uplink grant ULGrant is configured in a newly added cell of the connection re-establishment request response message.
In some exemplary embodiments, the new increment is Configured UL grant.
In some exemplary embodiments, as shown in fig. 4, the UE receives a response message to the connection reestablishment request message in step 302, including:
the physical layer PHY of the UE sends the received response message to the radio resource control layer RRC of the UE through the access layer data plane AS DP of the UE;
the radio resource control layer RRC stores the uplink grant ULGrant in the response message.
In some exemplary embodiments, step 303 comprises:
after the radio resource control layer RRC executes radio resource control processing according to the response message, the connection reestablishment completion message is sent to the access layer data plane AS DP;
the access layer data plane AS DP stores the connection reestablishment completion message;
the radio resource control layer RRC configures the uplink grant ULGrant to the physical layer PHY;
the physical layer PHY informs the access layer data plane AS DP of the uplink grant;
the access layer data plane AS DP sends the connection reestablishment completion message to the network side through the physical layer PHY based on the resources indicated by the uplink grant.
In some exemplary embodiments, the method further comprises:
based on determining that the data buffer area of the access layer data plane AS DP has data to be sent, the access layer data plane AS DP acquires the uplink grant ULGrant.
In some exemplary embodiments, the method steps 301-303 are applied to a user equipment UE.
The embodiment of the disclosure further provides a wireless connection reestablishing method, as shown in fig. 5, including:
step 501, receiving a connection reestablishment request message sent by user equipment UE;
step 502, according to the connection reestablishment request message, sending a response message to the connection reestablishment request message to the UE;
step 503, receiving a connection reestablishment completion message sent by the UE;
wherein the response message carries an uplink grant ULGrant.
In some exemplary embodiments, the connection reestablishment request message is a radio resource control RRC connection reestablishment request message RRCReestablishmentRequest; the response message of the connection reestablishment request is a response message RRCReeastablent of the RRC connection reestablishment request; the connection reestablishment completion message is an RRC connection reestablishment completion message rrcreestablishcomplete.
In some exemplary embodiments, the uplink grant ULGrant is configured in a newly added cell of the connection reestablishment request response message.
In some exemplary embodiments, the additional cell is Configured UL grant. That is, the network side configures the uplink grant ULGrant in the newly added cell Configured UL grant of the connection reestablishment request response message, and the UE sends a connection reestablishment completion message to the network side according to the uplink grant ULGrant in the newly added cell.
It should be noted that, in step 503, the network receives the rrcreescitalopmentcomplete message from the UE, and then responds to the message according to the relevant scheme, and specific aspects are not specifically discussed herein.
In some example embodiments, the uplink grant ULGrant is configured as a type 1configured grant Type1 of configurable grant configuration;
alternatively, the uplink grant ULGrant is configured as a type 2configured grant Type2 of configurable grant configuration.
In some example embodiments, the uplink grant ULGrant configuration is of the type 1configured grant Type1 of the configured grant configuration grant configuration in 3gpp ts 38.331.
In some example embodiments, the uplink grant ULGrant configuration is of the type 2configured grant Type2 of the configured grant configuration grant configuration in 3gpp ts 38.331.
In some exemplary embodiments, newly added cell Configured UL grant in RRC Reestablishment message is configured as configured grant Type1 of configured grantconfig by default, configured UL grant will automatically activate after configuration.
In some exemplary embodiments, if network control is required for activation of newly added cell Configured UL grant, configuration is implemented at configured grant Type2 of ConfiguredGrantConfig.
In some exemplary embodiments, the method is applied to traffic with high latency requirements and periodic transmission requirements. Wherein the high latency requirement includes: the time interval from sending the RRC connection reestablishment request rrcreestablischentrequest message to sending the rrcreestablischentcomplete message is less than a preset delay threshold. Alternatively, one skilled in the art may define the latency requirement in other ways, not limited to the aspects of the examples of the present disclosure.
In some exemplary embodiments, the method is applied to RRC connection reestablishment of all traffic scenarios, so as to reduce reestablishment delay and ensure communication quality.
In some exemplary embodiments, the method steps 501-503 are applied to a network side device.
The embodiment of the present disclosure further provides a wireless connection reestablishing device 60, as shown in fig. 6, including:
a request module 601 configured to send a connection reestablishment request message to a network side;
a receiving module 602, configured to receive a response message of the network side to the connection reestablishment request message, where the response message carries an uplink grant ULGrant;
and a reestablishing module 603, configured to send a connection reestablishment completion message to the network side according to the uplink grant ULGrant.
The embodiment of the present disclosure also provides a user equipment UE, including the wireless connection reestablishing device 60 as described above.
The embodiment of the present disclosure further provides a wireless connection reestablishing device 70, as shown in fig. 7, including:
a receiving module 701, configured to receive a connection reestablishment request message sent by a user equipment UE;
a sending module 702 configured to send a response message to the connection reestablishment request message to the UE according to the connection reestablishment request message;
a response module 703, configured to receive a connection reestablishment completion message sent by the UE;
wherein the response message carries an uplink grant ULGrant.
The embodiment of the present disclosure also provides a network side device, including the wireless connection reestablishing device 70 described above.
The embodiment of the disclosure also provides an electronic device, which is characterized by comprising:
one or more processors;
storage means for storing one or more programs,
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the wireless connection reestablishment method described in any one of the embodiments above.
The disclosed embodiments also provide a storage medium having a computer program stored therein, wherein the computer program is configured to perform the wireless connection reestablishment method described in any one of the embodiments above when executed.
It can be seen that according to the wireless connection reestablishment scheme provided by the embodiment of the disclosure, the UE can timely send the rrcreestablemaster to the network, so that delay of the RRC connection reestablishment process is effectively reduced, the user data transmission rate is recovered as soon as possible, and user experience is significantly improved.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the specification and drawings of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (12)
1. A wireless connection reestablishment method, comprising:
the user equipment sends a connection reestablishment request message to a network side;
the user equipment receives a response message of the network side to the connection reestablishment request message, wherein the response message carries uplink authorization;
and the user equipment sends a connection reestablishment completion message to the network side according to the uplink grant.
2. The method of claim 1, wherein,
the uplink grant is configured in a newly added cell of the response message.
3. The method of claim 1 or 2, wherein,
the user equipment receiving a response message to the connection reestablishment request message, including:
the physical layer of the user equipment sends the received response message to a radio resource control layer through an access layer data plane;
the radio resource control layer maintains an uplink grant in the response message.
4. The method of claim 3, wherein,
the user equipment sends a connection reestablishment completion message to the network side according to the uplink grant, and the connection reestablishment completion message comprises:
after the radio resource control layer executes radio resource control processing according to the response message, the radio resource control layer sends the connection reestablishment completion message to the access layer data plane;
the access layer data surface stores the connection reestablishment completion message;
the radio resource control layer configures the uplink grant to the physical layer;
the physical layer informing the access layer data plane of the uplink grant;
and the access layer data plane sends the connection reestablishment completion message to the network side through the physical layer based on the resource indicated by the uplink authorization.
5. The method of claim 4, wherein the method further comprises:
and acquiring the uplink authorization by the access layer data plane based on determining that the data buffer area of the access layer data plane has data to be sent.
6. A wireless connection reestablishment method, comprising:
receiving a connection reestablishment request message sent by user equipment;
transmitting a response message to the connection reestablishment request message to the user equipment according to the connection reestablishment request message;
receiving a connection reestablishment completion message sent by the user equipment;
wherein the response message carries an uplink grant.
7. The method of claim 6, wherein,
the uplink grant is configured in a newly added cell of the response message.
8. The method of claim 7, wherein,
the uplink grant configuration is type1 of a configurable grant configuration;
alternatively, the uplink grant configuration is a type2 configurable grant configuration.
9. A wireless connection reestablishment device, comprising:
the request module is configured to send a connection reestablishment request message to the network side;
the receiving module is configured to receive a response message of the network side to the connection reestablishment request message, wherein the response message carries uplink authorization;
and the reestablishment module is used for sending a connection reestablishment completion message to the network side according to the uplink authorization.
10. A wireless connection reestablishment device, comprising:
the receiving module is used for receiving a connection reestablishment request message sent by the user equipment;
a sending module, configured to send a response message to the connection reestablishment request message to the user equipment according to the connection reestablishment request message;
the response module is used for receiving a connection reestablishment completion message sent by the user equipment;
wherein the response message carries an uplink grant.
11. An electronic device, comprising:
one or more processors;
storage means for storing one or more programs,
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the wireless connection re-establishment method of any of claims 1-8.
12. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the radio connection re-establishment method according to any of the claims 1-8.
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| CN202111211939.9A CN115996484A (en) | 2021-10-18 | 2021-10-18 | Wireless connection reestablishing method and device, electronic equipment and storage medium |
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| CN202111211939.9A CN115996484A (en) | 2021-10-18 | 2021-10-18 | Wireless connection reestablishing method and device, electronic equipment and storage medium |
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