CN106488569B - Method and device for transmitting radio resource control message - Google Patents

Method and device for transmitting radio resource control message Download PDF

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Publication number
CN106488569B
CN106488569B CN201611064581.0A CN201611064581A CN106488569B CN 106488569 B CN106488569 B CN 106488569B CN 201611064581 A CN201611064581 A CN 201611064581A CN 106488569 B CN106488569 B CN 106488569B
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Prior art keywords
radio bearer
srb
drb
resource control
signaling
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CN106488569A (en
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雷艺学
张云飞
郑倩
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information

Abstract

The embodiment of the invention discloses a method for transmitting a radio resource control message, which comprises the following steps: a first terminal receives a Radio Resource Control (RRC) message transmitted by a Signaling Radio Bearer (SRB) and sent by a second terminal; the first terminal searches a Data Radio Bearer (DRB) corresponding to the Signaling Radio Bearer (SRB) from a pre-configured resource mapping table; and the first terminal sends the radio resource control RRC message transmitted by the searched data radio bearer DRB to a base station. The embodiment of the invention also discloses a device for transmitting the radio resource control message. By adopting the embodiment of the invention, the establishment of RRC connection between the R-UE and the eNB is supported, and the RRC control signaling resources of the U2NR and the network side are not influenced, so that the service processing efficiency is improved.

Description

Method and device for transmitting radio resource control message
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting a radio resource control message.
Background
D2D (Device to Device) refers to a communication technology in which User Equipments (UEs) can communicate directly without transmission or forwarding through a base station or other devices. D2D may be deployed within cellular network coverage and/or outside network coverage. The UE-NW relay is a characteristic introduced in D2D communication, has the advantage of flexible deployment, can expand the network coverage range without increasing the existing network equipment, and has important application in the fields of commercial communication, public safety communication (such as earthquake and war), and the like.
As shown in fig. 1, fig. 1 provides a schematic diagram of a further enhanced D2D connection system. The remote UE may access the enhanced UE-to-NW relay through LTE (Long Term Evolution ) RAT (Radio access technologies) or through other RATs (e.g., bluetooth and WiFi), and further establish a connection with the network side and a connection with the user plane. As shown in fig. 2, fig. 2 provides a network architecture in which a remote UE is connected to an eNB and an MME, but the prior art solution does not provide the problem of establishing a signaling bearer between a base station and the remote UE, resulting in inefficient service processing.
Disclosure of Invention
the embodiment of the invention provides a method and a device for transmitting a radio resource control message. The technical problem of low service processing efficiency in the prior art can be solved.
The first aspect of the present invention provides a method for transmitting a radio resource control message, including:
A first terminal receives a Radio Resource Control (RRC) message transmitted by a Signaling Radio Bearer (SRB) and sent by a second terminal;
The first terminal searches a Data Radio Bearer (DRB) corresponding to the Signaling Radio Bearer (SRB) from a pre-configured resource mapping table;
And the first terminal sends the radio resource control RRC message transmitted by the searched data radio bearer DRB to a base station.
The resource mapping table includes a mapping relationship between the same type of the signaling radio bearer SRB of multiple user terminals and the same data radio bearer DRB, or a mapping relationship between multiple types of the signaling radio bearer SRBs of each user terminal and the same data radio bearer DRB.
When the same type of the signaling radio bearer SRB of a plurality of user terminals has a mapping relationship with the same data radio bearer DRB, the signaling radio bearer SRB is a signaling radio bearer SRB with different priorities.
Wherein, the SRBs include multiple SRBs, and the sending, by the first terminal to the base station, the RRC message transmitted via the found DRB includes:
adding identification information to an RLC packet header bearing the radio resource control RRC message at a radio link control layer (RLC), wherein the identification information comprises a user terminal identification and/or an SRB identification;
and sending the radio resource control RRC message carrying the identification information to the base station.
Before the first terminal receives a radio resource control RRC message transmitted by a signaling radio bearer SRB and sent by a second terminal, the method further includes:
And receiving the resource mapping table sent by the base station.
Wherein the DRB includes integrity protection information, and the integrity protection information is used by the base station to verify the integrity and security of the DRB.
accordingly, a second aspect of the present invention provides a radio resource control message transmission apparatus, including:
A message receiving module, configured to receive a radio resource control RRC message transmitted by a signaling radio bearer SRB and sent by a second terminal;
A message processing module, configured to search a resource mapping table configured in advance for a data radio bearer DRB corresponding to the signaling radio bearer SRB;
and the message sending module is used for sending the radio resource control RRC message transmitted by the found data radio bearer DRB to a base station.
The resource mapping table includes a mapping relationship between the same type of the signaling radio bearer SRB of multiple user terminals and the same data radio bearer DRB, or a mapping relationship between multiple types of the signaling radio bearer SRBs of each user terminal and the same data radio bearer DRB.
When the same type of the signaling radio bearer SRB of a plurality of user terminals has a mapping relationship with the same data radio bearer DRB, the signaling radio bearer SRB is a signaling radio bearer SRB with different priorities.
Wherein the message sending module is specifically configured to:
Adding identification information to an RLC packet header bearing the radio resource control RRC message at a radio link control layer (RLC), wherein the identification information comprises a user terminal identification and/or an SRB identification;
and sending the radio resource control RRC message carrying the identification information to the base station.
The message receiving module is further configured to receive the resource mapping table sent by the base station.
Wherein the DRB includes integrity protection information, and the integrity protection information is used by the base station to verify the integrity and security of the DRB.
accordingly, a third aspect of the present invention provides an apparatus for radio resource control message transmission, the apparatus comprising an interface circuit, a memory, and a processor, wherein the memory stores a set of program codes, and the processor is configured to call the program codes stored in the memory to perform the following operations:
Receiving a Radio Resource Control (RRC) message transmitted by a Signaling Radio Bearer (SRB) and sent by a second terminal;
Searching a Data Radio Bearer (DRB) corresponding to the Signaling Radio Bearer (SRB) from a pre-configured resource mapping table;
And sending the radio resource control RRC message transmitted by the searched data radio bearer DRB to a base station.
In the embodiment of the invention, a first terminal firstly receives a radio resource control RRC message which is transmitted by a Signaling Radio Bearer (SRB) and is sent by a second terminal; then searching a data radio bearer DRB corresponding to the signaling radio bearer SRB from a pre-configured resource mapping table; and finally, the radio resource control RRC message transmitted by the found data radio bearer DRB is sent to the base station, so that the establishment of RRC connection between the R-UE and the eNB is supported, the RRC control signaling resources of the U2NR and the network side are not influenced, and the service processing efficiency is improved.
Drawings
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a further enhanced D2D connection system provided by the prior art;
Fig. 2 is a schematic diagram of a network architecture in which a remote UE connects to an eNB and an MME according to a prior art scheme;
Fig. 3 is a flowchart illustrating a method for rrc message transmission according to a first embodiment of the present invention;
Fig. 4 is a schematic diagram of a mapping relationship provided in an embodiment of the present invention;
FIG. 5 is a diagram illustrating another mapping relationship provided by an embodiment of the invention;
Fig. 6 is a flowchart illustrating a method for rrc message transmission according to a second embodiment of the present invention;
Fig. 7 is a schematic structural diagram of an apparatus for transmitting an rrc message according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an apparatus for transmitting an rrc message according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3, fig. 3 is a flowchart illustrating a method for rrc message transmission according to an embodiment of the present invention. As shown in fig. 3, the method in the embodiment of the present invention includes:
s301, the first terminal receives a radio resource control RRC message transmitted by a signaling radio bearer SRB and sent by the second terminal. The first terminal may be a relay UE, and the second terminal may be a remote UE.
in a specific implementation, since the second terminal is not within the coverage of the base station, the second terminal needs to establish an RRC connection with the eNB, first search for the first terminal capable of providing the relay service, and if the first terminal is searched, encapsulate the radio resource control RRC message into the signaling radio bearer SRB, and then transmit the radio resource control RRC message to the first terminal through the signaling radio bearer SRB.
S302, the first terminal searches a data radio bearer DRB corresponding to the signaling radio bearer SRB from a pre-configured resource mapping table.
in a specific implementation, the resource mapping table includes a mapping relationship between the same signaling radio bearer SRB of multiple user terminals and the same data radio bearer DRB, or a mapping relationship between multiple signaling radio bearers SRBs of each user terminal and the same data radio bearer DRB. The resource mapping table may be sent by the base station, or may be locally generated by the first terminal.
as shown in fig. 4, the same SRB between the remote UE and the relay UE is mapped to the same DRB between the relay UE and the base station. For example: SRB0 between R-UE1 and U2NR and SRB0 between R-UE2 and U2NR are mapped onto DRBx between U2NR and eNB; SRB1 between R-UE1 and U2NR and SRB1 between R-UE2 and U2NR are mapped onto DRBv between U2NR and eNB; SRB2 between R-UE1 and U2NR and SRB2 between R-UE2 and U2NR are mapped onto DRBz between U2NR and eNB.
As also shown in fig. 5, the SRBs 0, SRBs 1, and SRBs 2 between different remote UEs and relay UEs are bundled and mapped to the same DRB or DRBs. For example: SRB0, SRB1 and SRB2 between R-UE1 and U2NR are mapped together onto DRBx between U2NR and eNB; SRB0, SRB1 and SRB2 between R-UE2 and U2NR are also mapped together on DRBx between U2NR and eNB.
further, when the same type of the signaling radio bearer SRB of multiple user terminals has a mapping relationship with the same data radio bearer DRB, the signaling radio bearer SRB is a signaling radio bearer SRB with different priorities. For example: priority control is performed among SRB0, SRB1, and SRB2, SRB0> SRB1> SRB 2. When the mapping relation exists between the various signaling radio bearers SRB of each user terminal and the same data radio bearer DRB, the priority among the various SRBs is no longer supported.
S303, the first terminal sends the RRC message transmitted by the DRB to the base station.
In a specific implementation, if SRB0, SRB1, and SRB2 are all mapped to one DRB for carrying, considering carrying signaling connections of multiple remote UEs, C-RNTI (per eNB/macro cell) + U2NR ID + SRB index triplet identifier SRB may be used.
Wherein the DRB includes integrity protection information, and the integrity protection information is used by the base station to verify the integrity and security of the DRB. Unlike traditional DRBs that only support confidentiality, extended DRBs support not only confidentiality but also integrity protection.
in the embodiment of the invention, a first terminal firstly receives a Radio Resource Control (RRC) message which is transmitted by a Signaling Radio Bearer (SRB) and is sent by a second terminal; then searching a data radio bearer DRB corresponding to the signaling radio bearer SRB from a pre-configured resource mapping table; and finally, sending the radio resource control RRC message transmitted by the found data radio bearer DRB to a base station, so as to realize support for establishing RRC connection between the R-UE and the eNB, and simultaneously, not influencing RRC control signaling resources of the U2NR and a network side, and improving service processing efficiency.
referring to fig. 6, fig. 6 is a flowchart illustrating a method for rrc message transmission according to an embodiment of the present invention. As shown in fig. 6, the method in the embodiment of the present invention includes:
S601, the first terminal receives the resource mapping table sent by the base station. The resource mapping table includes a mapping relationship between the same type of the signaling radio bearer SRB and the same type of the data radio bearer DRB of a plurality of user terminals, or a mapping relationship between a plurality of types of the signaling radio bearer SRBs and the same type of the data radio bearer DRB of each user terminal.
S602, the first terminal receives a radio resource control RRC message transmitted by a signaling radio bearer SRB and sent by the second terminal.
In a specific implementation, since the second terminal is not within the coverage of the base station, the second terminal needs to establish an RRC connection with the eNB, first search for the first terminal capable of providing the relay service, and if the first terminal is searched, encapsulate the radio resource control RRC message into the signaling radio bearer SRB, and then transmit the radio resource control RRC message to the first terminal through the signaling radio bearer SRB.
S603, the first terminal searches a data radio bearer DRB corresponding to the signaling radio bearer SRB from a pre-configured resource mapping table.
As shown in fig. 4, the same SRB between the remote UE and the relay UE is mapped to the same DRB between the relay UE and the base station. For example: SRB0 between R-UE1 and U2NR and SRB0 between R-UE2 and U2NR are mapped onto DRBx between U2NR and eNB; SRB1 between R-UE1 and U2NR and SRB1 between R-UE2 and U2NR are mapped onto DRBv between U2NR and eNB; SRB2 between R-UE1 and U2NR and SRB2 between R-UE2 and U2NR are mapped onto DRBz between U2NR and eNB.
As also shown in fig. 5, the SRBs 0, SRBs 1, and SRBs 2 between different remote UEs and relay UEs are bundled and mapped to the same DRB or DRBs. For example: SRB0, SRB1 and SRB2 between R-UE1 and U2NR are mapped together onto DRBx between U2NR and eNB; SRB0, SRB1 and SRB2 between R-UE2 and U2NR are also mapped together on DRBx between U2NR and eNB.
Further, when the same type of the signaling radio bearer SRB of multiple user terminals has a mapping relationship with the same data radio bearer DRB, the signaling radio bearer SRB is a signaling radio bearer SRB with different priorities. For example: priority control is performed among SRB0, SRB1, and SRB2, SRB0> SRB1> SRB 2. When the mapping relation exists between the various signaling radio bearers SRB of each user terminal and the same data radio bearer DRB, the priority among the various SRBs is no longer supported.
S604, the first terminal adds identification information to the RLC packet header carrying the RRC message at the radio link control layer RLC, wherein the identification information comprises the user terminal identification and/or the SRB identification.
s605, the first terminal sends the radio resource control RRC message carrying the identification information to the base station, thereby maintaining the independent RRC context relationship between each remote UE and the base station.
in a specific implementation, after receiving the RRC message carrying the identification information, the base station needs to remove the identification information additionally added by the RLC, and if the base station encapsulates the downlink RRC message, the base station needs to add the identification information to the RRC message.
in the embodiment of the invention, a first terminal firstly receives a Radio Resource Control (RRC) message which is transmitted by a Signaling Radio Bearer (SRB) and is sent by a second terminal; then searching a data radio bearer DRB corresponding to the signaling radio bearer SRB from a pre-configured resource mapping table; and finally, sending the radio resource control RRC message transmitted by the found data radio bearer DRB to a base station, so as to realize support for establishing RRC connection between the R-UE and the eNB, and simultaneously, not influencing RRC control signaling resources of the U2NR and a network side, and improving service processing efficiency.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an apparatus for transmitting rrc message according to an embodiment of the present invention. As shown in the figures, the apparatus in the embodiment of the present invention includes:
a message receiving module 701, configured to receive a radio resource control RRC message sent by the second terminal and transmitted through the SRB.
In a specific implementation, since the second terminal is not within the coverage of the base station, the second terminal needs to establish an RRC connection with the eNB, first search for the first terminal capable of providing the relay service, and if the first terminal is searched, encapsulate the radio resource control RRC message into the signaling radio bearer SRB, and then transmit the radio resource control RRC message to the first terminal through the signaling radio bearer SRB.
A message processing module 702, configured to search a pre-configured resource mapping table for a data radio bearer DRB corresponding to the signaling radio bearer SRB.
In a specific implementation, the resource mapping table includes a mapping relationship between the same signaling radio bearer SRB of multiple user terminals and the same data radio bearer DRB, or a mapping relationship between multiple signaling radio bearers SRBs of each user terminal and the same data radio bearer DRB. The resource mapping table may be sent by the base station, or may be locally generated by the first terminal.
As shown in fig. 4, the same SRB between the remote UE and the relay UE is mapped to the same DRB between the relay UE and the base station. For example: SRB0 between R-UE1 and U2NR and SRB0 between R-UE2 and U2NR are mapped onto DRBx between U2NR and eNB; SRB1 between R-UE1 and U2NR and SRB1 between R-UE2 and U2NR are mapped onto DRBv between U2NR and eNB; SRB2 between R-UE1 and U2NR and SRB2 between R-UE2 and U2NR are mapped onto DRBz between U2NR and eNB.
As also shown in fig. 5, the SRBs 0, SRBs 1, and SRBs 2 between different remote UEs and relay UEs are bundled and mapped to the same DRB or DRBs. For example: SRB0, SRB1 and SRB2 between R-UE1 and U2NR are mapped together onto DRBx between U2NR and eNB; SRB0, SRB1 and SRB2 between R-UE2 and U2NR are also mapped together on DRBx between U2NR and eNB.
further, when the same type of the signaling radio bearer SRB of multiple user terminals has a mapping relationship with the same data radio bearer DRB, the signaling radio bearer SRB is a signaling radio bearer SRB with different priorities. For example: priority control is performed among SRB0, SRB1, and SRB2, SRB0> SRB1> SRB 2. When the mapping relation exists between the various signaling radio bearers SRB of each user terminal and the same data radio bearer DRB, the priority among the various SRBs is no longer supported.
A message sending module 703, configured to send the RRC message transmitted by the found DRB to a base station.
In a specific implementation, if SRB0, SRB1, and SRB2 are all mapped to one DRB for carrying, considering carrying signaling connections of multiple remote UEs, C-RNTI (per eNB/macro cell) + U2NR ID + SRB index triplet identifier SRB may be used.
And, the data radio bearer DRB includes encrypted integrity protection information, and the encrypted integrity protection information is used by the base station to verify integrity and security of the data radio bearer DRB. Unlike traditional DRBs that only support confidentiality, extended DRBs support not only confidentiality but also integrity protection.
Optionally, the RLC packet header carrying the RRC message is added with identification information at a radio link control layer RLC, where the identification information includes a user terminal identifier and/or an SRB identifier, and the RRC message carrying the identification information is sent to the base station, so as to maintain an independent RRC context relationship between each remote UE and the base station. After receiving the radio resource control RRC message carrying the identification information, the base station needs to remove the identification information additionally added by the RLC, and if the base station encapsulates the downlink RRC message, the base station needs to add the identification information into the RRC message.
In the embodiment of the invention, a first terminal firstly receives a Radio Resource Control (RRC) message which is transmitted by a Signaling Radio Bearer (SRB) and is sent by a second terminal; then searching a data radio bearer DRB corresponding to the signaling radio bearer SRB from a pre-configured resource mapping table; and finally, sending the radio resource control RRC message transmitted by the found data radio bearer DRB to a base station, so as to realize support for establishing RRC connection between the R-UE and the eNB, and simultaneously, not influencing RRC control signaling resources of the U2NR and a network side, and improving service processing efficiency.
Referring to fig. 8, fig. 8 is a schematic structural diagram of an apparatus for transmitting rrc message according to an embodiment of the present invention. As shown, the apparatus may include: at least one processor 801, such as a CPU, at least one communication interface 802, at least one memory 803, at least one bus 804. Bus 804 is used to enable, among other things, connectivity communications between these components. The communication interface 802 of the apparatus in the embodiment of the present invention is a wired transmission port, and may also be a wireless device, for example, including an antenna apparatus, for performing signaling or data communication with other node devices. The memory 803 may be a high-speed RAM memory or a non-volatile memory (e.g., at least one disk memory). The memory 803 may optionally be at least one memory device located remotely from the processor 801 as previously described. A set of program code is stored in the memory 803 and the processor 801 is used to call up the program code stored in the memory for performing the following operations:
Receiving a Radio Resource Control (RRC) message transmitted by a Signaling Radio Bearer (SRB) and sent by a second terminal;
searching a Data Radio Bearer (DRB) corresponding to the Signaling Radio Bearer (SRB) from a pre-configured resource mapping table;
and sending the radio resource control RRC message transmitted by the searched data radio bearer DRB to a base station.
The resource mapping table includes a mapping relationship between the same type of the signaling radio bearer SRB of multiple user terminals and the same data radio bearer DRB, or a mapping relationship between multiple types of the signaling radio bearer SRBs of each user terminal and the same data radio bearer DRB.
When the same type of the signaling radio bearer SRB of a plurality of user terminals has a mapping relationship with the same data radio bearer DRB, the signaling radio bearer SRB is a signaling radio bearer SRB with different priorities.
The processor 801 is further configured to perform the following operation steps:
Adding identification information to an RLC packet header bearing the radio resource control RRC message at a radio link control layer (RLC), wherein the identification information comprises a user terminal identification and/or an SRB identification;
and sending the radio resource control RRC message carrying the identification information to the base station.
The processor 801 is further configured to perform the following operation steps:
And receiving the resource mapping table sent by the base station.
Wherein the DRB includes integrity protection information, and the integrity protection information is used by the base station to verify the integrity and security of the DRB.
It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
the content downloading method, the related device and the system provided by the embodiment of the present invention are described in detail above, and a specific example is applied in the text to explain the principle and the embodiment of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (9)

1. A method for radio resource control message transmission, the method comprising:
a first terminal receives a Radio Resource Control (RRC) message transmitted by a Signaling Radio Bearer (SRB) and sent by a second terminal;
the first terminal searches a Data Radio Bearer (DRB) corresponding to the Signaling Radio Bearer (SRB) from a pre-configured resource mapping table, wherein the resource mapping table comprises a mapping relation between the same Signaling Radio Bearer (SRB) of a plurality of user terminals and the same Data Radio Bearer (DRB), or a mapping relation between a plurality of types of Signaling Radio Bearers (SRBs) of each user terminal and the same Data Radio Bearer (DRB), and when the same Signaling Radio Bearer (SRB) of the plurality of user terminals and the same Data Radio Bearer (DRB) have the mapping relation, the Signaling Radio Bearer (SRB) is the Signaling Radio Bearer (SRB) with different priorities;
And the first terminal sends the radio resource control RRC message transmitted by the searched data radio bearer DRB to a base station.
2. the method according to claim 1, wherein the signaling radio bearer SRB comprises multiple signaling radio bearers SRB, and the sending, by the first terminal to the base station, the radio resource control RRC message transmitted over the data radio bearer DRB found comprises:
Adding identification information to an RLC packet header bearing the radio resource control RRC message at a radio link control layer (RLC), wherein the identification information comprises a user terminal identification and/or an SRB identification;
and sending the radio resource control RRC message carrying the identification information to the base station.
3. The method of claim 1, wherein before the first terminal receives a Radio Resource Control (RRC) message transmitted over a Signaling Radio Bearer (SRB) sent by a second terminal, the method further comprises:
And receiving the resource mapping table sent by the base station.
4. the method according to any of claims 1-3, wherein the data radio bearer DRB contains ciphered integrity protection information used by the base station to verify the integrity and security of the data radio bearer DRB.
5. An apparatus for radio resource control message transmission, the apparatus comprising:
A message receiving module, configured to receive a radio resource control RRC message transmitted by a signaling radio bearer SRB and sent by a second terminal;
A message processing module, configured to search a pre-configured resource mapping table for a data radio bearer DRB corresponding to the signaling radio bearer SRB, where the resource mapping table includes a mapping relationship between the same signaling radio bearer SRB of multiple user terminals and the same data radio bearer DRB, or a mapping relationship between multiple types of signaling radio bearers SRBs of each user terminal and the same data radio bearer DRB, and when the same signaling radio bearer SRB of multiple user terminals and the same data radio bearer DRB have a mapping relationship, the signaling radio bearer SRB is a signaling radio bearer SRB with different priorities;
And the message sending module is used for sending the radio resource control RRC message transmitted by the found data radio bearer DRB to a base station.
6. the apparatus of claim 5, wherein the message sending module is specifically configured to:
adding identification information to an RLC packet header bearing the radio resource control RRC message at a radio link control layer (RLC), wherein the identification information comprises a user terminal identification and/or an SRB identification;
And sending the radio resource control RRC message carrying the identification information to the base station.
7. the apparatus of claim 5,
The message receiving module is further configured to receive the resource mapping table sent by the base station.
8. the apparatus of any of claims 5-7, wherein the data radio bearer DRB contains ciphered integrity protection information used by the base station to verify integrity and security of the data radio bearer DRB.
9. an apparatus for radio resource control message transmission, the apparatus comprising interface circuitry, a memory, and a processor, wherein the memory stores a set of program code therein, and wherein the processor is configured to invoke the program code stored in the memory and perform the following:
receiving a Radio Resource Control (RRC) message transmitted by a Signaling Radio Bearer (SRB) and sent by a second terminal;
Searching a Data Radio Bearer (DRB) corresponding to the Signaling Radio Bearer (SRB) from a pre-configured resource mapping table, wherein the resource mapping table comprises a mapping relation between the same Signaling Radio Bearer (SRB) of a plurality of user terminals and the same Data Radio Bearer (DRB), or a mapping relation between a plurality of Signaling Radio Bearers (SRBs) of each user terminal and the same Data Radio Bearer (DRB), and when the same Signaling Radio Bearer (SRB) of a plurality of user terminals and the same Data Radio Bearer (DRB) have the mapping relation, the Signaling Radio Bearer (SRB) is the Signaling Radio Bearer (SRB) with different priorities;
And sending the radio resource control RRC message transmitted by the searched data radio bearer DRB to a base station.
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