CN110351882A

CN110351882A - A kind of indicating means, relevant device and the system of Request System information

Info

Publication number: CN110351882A
Application number: CN201810309176.3A
Authority: CN
Inventors: 徐海博; 姚楚婷; 邝奕如; 王键; 刘海涛
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2019-10-18
Anticipated expiration: 2038-04-04
Also published as: CN110351882B; WO2019192492A1

Abstract

The embodiment of the invention provides indicating means, relevant device and the systems of a kind of Request System information.Wherein, this method is applied in CU-DU separation system or relay system, this method comprises: terminal device sends media access control sub-protocol data units MAC subPDU to the network equipment, the MAC subPDU includes the first instruction information and media access control Service Data Unit MAC SDU, and the first instruction information indicates that the MAC SDU includes the message of Request System information；The terminal device obtains the system information that the network equipment is sent.Identify that MAC SDU includes the message of Request System information by the first instruction information, it is possible to prevente effectively from the system information request of the refusal terminal of network equipment mistake, can also effectively avoid transmission resource waste.

Description

A kind of indicating means, relevant device and the system of Request System information

Technical field

The present invention relates to the communications field more particularly to a kind of indicating means, relevant device and the systems of Request System information.

Background technique

In order to enhance the network coverage, network capacity is improved, a kind of effective method is deployment relay node.In deploying After in the system architecture of node, UE is connect by relay node with base station, and in this case, the base station that relay node connects can be with As host base station (base station Donor), and host base station may be coupled to core net.

According to third generation cooperative partner program (3rd Generation Partnership Project, abbreviation 3GPP) Agreement regulation, existing system information need to be sent to user equipment from network (network) by way of broadcast mostly (User Equipment, abbreviation UE).For example, being in long term evolution (Long Term Evolution, abbreviation LTE) technology System information (System Information, abbreviation SI) includes Master Information Block (Master Information Block, abbreviation MIB) system basic configuration information and system information block (System Information Block, abbreviation SIB) information, In, the broadcast cycle of Master Information Block system basic configuration information and part system information block message is fixed, the system of rest part The broadcast cycle of information block message is adjustable in fixed range.Even if user equipment does not need currently to obtain system information, still Must broadcasted content in moment listening broadcast channel obtain this two parts information.

In new wireless (New Radio, abbreviation NR) technology, minimum system information (Minimum System Information, abbreviation MSI) it must broadcast, and what the not all user equipment of some system informations required, for this Part system information, network do not need periodic broadcast always, but can be according to the demand of user equipment come on-demand broadcasting.

In 5G NR system, CU-DU isolation technics is introduced, i.e., the base station of NR is logically divided into two nodes, GNB-DU (Distributed Unit) and gNB-CU (Central Unit).UE is connected to gNB-CU by gNB-DU, And CU-DU separation system is known as by the system that gNB-CU is connected to core net, UE is connected to base station by relay node, and It is known as relay system by the system that base station is connected to core net, for CU-DU separation system or relay system, is set in user It is standby when needing Request System information, there is the system information request message that cannot accurately identify user equipment transmission and mistake is refused The system information request of exhausted user equipment, and can be caused comprising unnecessary information in delivery of system information request message The waste of resource.

Summary of the invention

Embodiment provides indicating means, relevant device and the system of a kind of Request System information, can be recognized accurately System information request message avoids the waste of the system information request and transfer resource of the refusal user equipment of mistake.

In a first aspect, the embodiment of the invention provides a kind of method for obtaining system information, the method is applied to CU- In DU separation system or relay system, which comprises

Terminal device sends media access control sub-protocol data units MAC subPDU, the MAC to the network equipment SubPDU includes the first instruction information and media access control Service Data Unit MAC SDU, the first instruction information instruction The MAC SDU includes the message of Request System information；

The terminal device obtains the system information that the network equipment is sent.

Implement the embodiment of the present invention, by sending media access control sub-protocol data units MAC to the network equipment SubPDU, MAC subPDU include the first instruction information and media access control Service Data Unit MAC SDU, so that network is set It is standby to identify that MAC SDU transmission is the message of Request System information according to the first instruction information, it can effectively keep away The system information request for exempting from the refusal terminal device of network equipment mistake, can also avoid the waste of transfer resource.

In an optional implementation, the first instruction information includes MAC that the MAC subPDU includes The value of Logic Channel Identifier LCID in head, the value of the LCID are used to including indicate the MAC SDU transmission be request system The message for information of uniting.

Implement the embodiment of the present invention, the value by the way that LCID is arranged forms the first instruction information, and realization is simple, knows convenient for network Not, high efficient and reliable.

In an optional implementation, the message of the Request System information includes: to be believed by public control logic The radio resource control RRC information of road CCCH transmission, or the radio resource transmitted by dedicated control logic channel DCCH Control protocol RRC information.

Implement the embodiment of the present invention, can be asked by the RRC information of the CCCH RRC information transmitted or DCCH transmission to transmit The message for seeking system information, facilitates the network equipment to identify.

In an optional implementation, when the value of the LCID is the first value, the value of the LCID indicates the MAC What SDU was transmitted is the RRC information by the CCCH or DCCH Request System information transmitted.

Implement the embodiment of the present invention, can be preset by the value to LCID, is with indicate the MAC SDU transmission Pass through the RRC information of the CCCH or DCCH Request System information transmitted, it is only necessary to the value of LCID is identified, it is simple high Effect.

It is described before the terminal device sends MAC subPDU to the network equipment in an optional implementation Method further include:

The terminal device receives the second indication information that the network equipment is sent, and the second indication information is for referring to Show that the network equipment supports the terminal device to use the first value of the LCID.

Implement the embodiment of the present invention, can be used LCID's by second indication information to prenotice terminal device Value is as the first instruction information, and the network equipment can identify the value of LCID, to identify the message of Request System information.

In an optional implementation, the second indication information is contained in the main system of the network equipment broadcast In information MIB, or it is contained in the system information block 1SIB1 of the network equipment broadcast.

Implement the embodiment of the present invention, second indication information can be sent by MIB or SIB1, MIB or SIB1 are existing Form of message, it is simple and convenient without sending second indication information by other message again, economize on resources.

In an optional implementation, the first instruction information includes MAC that the MAC subPDU includes The value of reserved bit in head, what the value of the reserved bit indicated the MAC SDU transmission is the message of Request System information.

Implement the embodiment of the present invention, can be preset by the value to reserved bit, to indicate the MAC SDU transmission Be Request System information message, it is only necessary to the value of reserved bit is identified, is simple and efficient.

In an optional implementation, when the value of the reserved bit is the first value, indicate that the MAC subheader is corresponding MAC SDU transmission be RRC information by CCCH or DCCH the Request System information transmitted；The value of the reserved bit When for second value, indicate the corresponding MAC SDU transmission of the MAC subheader is the RRC connection transmitted by CCCH or DCCH It establishes request message or RRC connection re-establishment request message or RRC connection restores message.

Implement the embodiment of the present invention, can be preset by the value to reserved bit, to indicate that the MAC subheader is corresponding MAC SDU transmission be RRC information by CCCH or DCCH the Request System information transmitted, it is only necessary to reserved bit Value identified, be simple and efficient.

Second aspect, the embodiment of the invention provides a kind of indicating means of Request System information, the method is applied to In CU-DU separation system or relay system, which comprises

The media access control sub-protocol data units MAC subPDU that first network equipment receiving terminal apparatus is sent, institute Stating MAC subPDU includes the first instruction information and media access control Service Data Unit MAC SDU, the first instruction letter Breath indicates that the MAC SDU includes the message of Request System information；

The first network equipment sends request message to second network equipment, and the request message includes the request system The message for information of uniting；

The first network equipment sends system information to the terminal device.

Implement the embodiment of the present invention, what can be sent according to the terminal device received includes the first instruction information and media Access control Service Data Unit MAC SDU, identify MAC SDU transmission by the first instruction information is for requesting The message of system information, it is possible to prevente effectively from the system information request of the refusal terminal device of first network device Errors, may be used also To avoid the waste of transfer resource.

In an optional implementation, MAC subPDU that the first network equipment receiving terminal apparatus is sent it Before, the method also includes:

The first network equipment sends second indication information to the terminal device, and the second indication information is for referring to Show that the first network equipment supports the terminal device to use the first value of the LCID.

In an optional implementation, when the value of the reserved bit is the first value, indicate that the MAC subheader is corresponding MAC SDU transmission be RRC information by CCCH or DCCH the Request System information transmitted；

When the value of the reserved bit is second value, indicate the corresponding MAC SDU transmission of the MAC subheader is to pass through Request message or RRC connection re-establishment request message are established in the RRC connection of CCCH or DCCH transmission or RRC connection recovery disappears Breath.

The third aspect, the embodiment of the invention provides a kind of indicating means of Request System information, the method is applied to In CU-DU separation system or relay system, which comprises

Second network equipment receives the request message that first network equipment is sent, and the request message is the first network After equipment identifies that MAC subPDU is used for Request System information according to the first instruction information, the message of transmission, wherein described MAC subPDU is that terminal device is sent to the first network equipment, the MAC subPDU include the first instruction information and Media access control Service Data Unit MAC SDU, the first instruction information indicate that the MAC SDU includes Request System letter The message of breath；

Second network equipment sends response message to the first network equipment according to the request message, so that institute It states first network equipment and sends system information to the terminal device.

Implement the embodiment of the present invention, the MAC is identified according to the first instruction information by receiving first network equipment SDU includes the request message of transmission after the message of Request System information, can effectively avoid the refusal terminal device of mistake System information request can also avoid the waste of transfer resource.

Fourth aspect, the embodiment of the invention provides a kind of indicating means of Request System information, the method is applied to In CU-DU separation system or relay system, which comprises

Terminal device selects PRACH resource to the network equipment from the first Physical Random Access Channel PRACH resource collection Send random access preamble；The first PRACH resource collection is the user equipment initiating random access procedure to request to be For sending the set of PRACH resource used in random access preamble when information of uniting；

The terminal device sends media access control sub-protocol data units MAC subPDU to the network equipment, described MAC subPDU transmission is to request the message of the first system information；

The terminal device receives the first system information that the network equipment is sent.

Implement the embodiment of the present invention, can be selected from the first PRACH resource collection according to the terminal device received The random access preamble that PRACH resource is sent, the MAC subPDU transmission for identifying that terminal device is sent is to request the first system The message for information of uniting, it is possible to prevente effectively from the system information request of the refusal terminal device of network equipment mistake, can also avoid The waste of transfer resource.

In an optional implementation, the method also includes:

The terminal device receives the second system letter that the network equipment is sent before sending the random access preamble It ceases, includes the first PRACH resource collection in the second system information.

Implement the embodiment of the present invention, by the comprising the first PRACH resource collection for receiving network equipment transmission in advance Two system information, the random access preamble that the PRACH resource selected from the first PRACH resource collection is sent is in order to which network is set It is standby to be identified, it is simple and reliable, improve the accuracy of identification.

In an optional implementation, the method also includes:

The second system information is that the primary system information MIB that the network equipment is broadcasted or the network equipment are wide The system information block 1SIB1 broadcast.

Implement the embodiment of the present invention, second system letter is transmitted by primary system information MIB or system information block 1SIB1 Breath, does not need to transmit second system information by the information of other forms again, has saved transfer resource.

5th aspect, the embodiment of the invention provides the transmission method of a kind of system information request message and response message, It is characterized in that, which comprises

First network equipment sends first message to second network equipment；The first message includes that system information request disappears Breath and cell ID；The cell ID is the mark of cell corresponding to the system information request message；The cell mark Know corresponding cell and belongs to the third network equipment；

The first network equipment receives the second message that second network equipment is sent；The second message indicates institute State the system information that the third network equipment sends cell corresponding to the system information request message；It is wrapped in the second message Containing the cell ID；

Wherein, the first network equipment and the third network equipment are consolidated network equipment or first net Network equipment and the third network equipment are heterogeneous networks equipment.

Implement the embodiment of the present invention, it is ensured that first message is correctly transmitted to second network equipment, can also guarantee It is correctly received the second message of second network equipment transmission.

In an optional implementation, second network equipment maintenance has first information set, first letter Breath set includes the mark and the first contingency table for the cell that second network equipment directly manages, and first contingency table includes The mark of the cell of the device identification of 4th network equipment and the 4th network device management；Wherein, the 4th network is set Standby is the sub-node equipment of second network equipment；The mark of the cell of 4th network device management includes the described 4th The mark of the cell of the mark and the 4th network equipment indirect control for the cell that the network equipment directly manages；

The first network plant maintenance has the second information aggregate, and second information aggregate includes that the first network is set The mark and the second contingency table of the standby cell directly managed, first contingency table include the 5th network equipment device identification and The mark of the cell of 5th network device management；Wherein, the 5th network equipment is the son of the first network equipment Node device；The mark of the cell of 5th network device management includes the cell that the 5th network equipment directly manages The mark of mark and the cell of the 5th network equipment indirect control.

Implement the embodiment of the present invention, passes through the mark and second of mark and the first contingency table and cell using cell The accuracy of contingency table guarantee messaging.

In an optional implementation, in the first message include the third network equipment device identification, It include the device identification of the third network equipment in the second message；

Second network equipment maintenance has third information aggregate, and the third information aggregate includes the 6th network equipment Device identification and third contingency table, the third contingency table include the device identification of the 6th network equipment and with the described 6th The network equipment has the device identification of the 7th network equipment of connection relationship；Wherein, the 6th network equipment is described second The sub-node equipment of the network equipment, the connection relationship include that the 7th network equipment directly connects with the 6th network equipment It connects or the 7th network equipment is indirectly connected with the 6th network equipment；

The first network plant maintenance has the 4th information aggregate, and the 4th information aggregate includes the 8th network equipment Device identification and the 4th contingency table, the 4th contingency table include the device identification of the 8th network equipment and with the described 8th The network equipment has the device identification of the 9th network equipment of connection relationship；Wherein, the 8th network equipment is described first The sub-node equipment of the network equipment, the connection relationship include that the 9th network equipment directly connects with the 8th network equipment It connects or the 9th network equipment is indirectly connected with the 8th network equipment.

Implement the embodiment of the present invention, passes through the device identification of the utilization network equipment and third contingency table and the network equipment Device identification and the 4th contingency table guarantee messaging accuracy.

In an optional implementation, the device identification of the third network equipment is included in the second message；

Second network equipment maintenance has the 5th information aggregate and the 6th information aggregate；

5th information aggregate includes the mark and the 5th contingency table for the cell that second network equipment directly manages, described 5th contingency table includes the mark of the device identification of the tenth network equipment and cell that the tenth network equipment directly manages；Its In, the tenth network equipment and second network equipment have connection relationship, and the connection relationship includes the tenth net Network equipment be directly connected to second network equipment or the tenth network equipment and second LA Management Room in succession It connects；

6th information aggregate includes device identification and the 6th contingency table of the 11st network equipment, the 6th association Table include the 11st network equipment device identification and with the 11st network equipment have connection relationship the 12nd The device identification of the network equipment；Wherein, the 11st network equipment is the sub-node equipment of second network equipment, described Connection relationship includes that the 12nd network equipment is directly connected to or the 12nd network with the 11st network equipment Equipment is indirectly connected with the 11st network equipment；

The first network plant maintenance has the 7th information aggregate, and the 7th information aggregate includes the 13rd network equipment The 7th contingency table of device identification, the 7th contingency table includes the device identification of the 13rd network equipment and with described 13 network equipments have the device identification of the 14th network equipment of connection relationship；Wherein, the 13rd network equipment is The sub-node equipment of the first network equipment, the connection relationship include the 14th network equipment and the 13rd net Network equipment is directly connected to or the 14th network equipment is indirectly connected with the 13rd network equipment.

Implement the embodiment of the present invention, by using cell mark and the 5th contingency table, the device identification of the network equipment and The device identification of 6th contingency table and the network equipment and the 7th contingency table guarantee the accuracy of messaging.

6th aspect, the embodiment of the invention provides the transmission method of a kind of system information request message and response message, It is characterized in that, which comprises

Second network equipment receives the first message that first network equipment is sent, and the first message includes that system information is asked Ask message and cell ID；The cell ID is the mark of cell corresponding to the system information request message；It is described small Mark corresponding cell in area's belongs to the third network equipment；

Second network equipment sends second message to the first network equipment, second message instruction described the Three network equipments send the system information of cell corresponding to the system information request message；It include institute in the second message State cell ID；

Implement the embodiment of the present invention, it is ensured that be correctly received the first message of first network equipment transmission, also can Enough guarantee that second message is correctly transmitted to first network equipment.

7th aspect, the embodiment of the invention provides a kind of terminal device, the terminal device includes:

First transmission unit, for sending media access control sub-protocol data units MAC subPDU to the network equipment；

Wherein, the MAC subPDU includes the first instruction information and media access control Service Data Unit MAC SDU, The first instruction information indicates that the MAC SDU includes the message of Request System information；

First receiving unit, the system information sent for receiving the network equipment.

In an optional implementation, before the terminal device sends MAC subPDU to the network equipment,

First receiving unit is also used to receive the second indication information that the network equipment is sent, second instruction Information is used to indicate the network equipment and the terminal device is supported to use the first value of the LCID.

Eighth aspect, the embodiment of the invention provides a kind of terminal device, the terminal device includes:

First selecting unit, for selecting PRACH resource from the first Physical Random Access Channel PRACH resource collection；

Wherein, the first PRACH resource collection is that the user equipment initiating random access procedure carrys out Request System letter For sending the set of PRACH resource used in random access preamble when breath；

Second transmission unit, for sending random access preamble to the network equipment；

Second transmission unit is also used to send media access control sub-protocol data units MAC to the network equipment SubPDU, the MAC subPDU transmission is to request the message of the first system information；

Second receiving unit, the first system information sent for receiving the network equipment.

In an optional implementation, the terminal device is before sending the random access preamble, and described second Receiving unit is also used to receive the second system information that the network equipment is sent, and described the is included in the second system information One PRACH resource collection.

In an optional implementation, the second system information is the primary system information of network equipment broadcast The MIB or system information block 1SIB1 of network equipment broadcast.

9th aspect, the embodiment of the invention provides a kind of first network equipment, the first network equipment includes:

First receiving unit, the media access control sub-protocol data units MAC sent for receiving terminal apparatus subPDU；

First transmission unit, for sending request message to second network equipment, the request message includes the request The message of system information；

First receiving unit is also used to receive the response message of second network equipment transmission；

First transmission unit is also used to send system information to the terminal device.

In an optional implementation, before the MAC subPDU that the receiving terminal apparatus is sent,

First transmission unit is also used to send second indication information, the second indication information to the terminal device Being used to indicate the first network equipment supports the terminal device to use the first value of the LCID.

Tenth aspect, the embodiment of the invention provides a kind of second network equipment, second network equipment includes:

Second receiving unit, for receiving the request message of first network equipment transmission；

Wherein, to be the first network equipment identify that MAC subPDU is used according to the first instruction information to the request message After Request System information, the message of transmission, wherein the MAC subPDU is sent to the first network for terminal device and sets Standby, the MAC subPDU includes the first instruction information and media access control Service Data Unit MAC SDU, and described first Instruction information indicates that the MAC SDU includes the message of Request System information；

Second transmission unit, for sending response message to the first network equipment, so that the first network equipment System information is sent to the terminal device.

Tenth on the one hand, and the embodiment of the invention provides a kind of first network equipment, the first network equipment includes:

First transmission unit, for sending first message to second network equipment；

Wherein, the first message includes system information request message and cell ID, and the cell ID is the system The mark of cell corresponding to information request message of uniting, cell corresponding to the cell ID belong to the third network equipment；

First receiving unit, the second message sent for receiving second network equipment；

Wherein, the second message indicates that the third network equipment is sent corresponding to the system information request message The system information of cell includes the cell ID in the second message.

In an optional implementation, the first network equipment further includes the first maintenance unit, first dimension Unit is protected for safeguarding the second information aggregate, second information aggregate includes the cell that the first network equipment directly manages Mark and the second contingency table, first contingency table include the 5th network equipment device identification and the 5th network equipment The mark of the cell of management；Wherein, the 5th network equipment is the sub-node equipment of the first network equipment；Described 5th The mark for the cell that the mark of the cell of network device management is directly managed including the 5th network equipment and the 5th net The mark of the cell of network equipment indirect control.

In an optional implementation, first maintenance unit is also used to safeguard the 4th information aggregate, described Four information aggregates include device identification and the 4th contingency table of the 8th network equipment, and the 4th contingency table includes the 8th net The device identification of the device identification of network equipment and the 9th network equipment with the 8th network equipment with connection relationship；Its In, the 8th network equipment is the sub-node equipment of the first network equipment, and the connection relationship includes the 9th net Network equipment be directly connected to the 8th network equipment or the 9th network equipment and the 8th LA Management Room in succession It connects.

In an optional implementation, first maintenance unit is also used to safeguard the 7th information aggregate, described Seven information aggregates include the 7th contingency table of device identification of the 13rd network equipment, and the 7th contingency table includes the described 13rd The equipment mark of the device identification of the network equipment and the 14th network equipment with the 13rd network equipment with connection relationship Know；Wherein, the 13rd network equipment is the sub-node equipment of the first network equipment, and the connection relationship includes described 14th network equipment is directly connected to the 13rd network equipment or the 14th network equipment and the described 13rd The network equipment is indirectly connected with.

12nd aspect, the embodiment of the invention provides a kind of second network equipment, second network equipment includes:

Second receiving unit, for receiving the first message of first network equipment transmission；

Second transmission unit, for sending second message to the first network equipment；

In an optional implementation, second network further includes the second maintenance unit, and second maintenance is single Member is for safeguarding that first information set, the first information set include the mark for the cell that second network equipment directly manages Know and the first contingency table, first contingency table include the 4th network equipment device identification and the 4th network device management Cell mark；Wherein, the 4th network equipment is the sub-node equipment of second network equipment；4th network The mark of the cell of equipment management includes that the mark for the cell that the 4th network equipment directly manages and the 4th network are set The mark of the cell of standby indirect control.

In an optional implementation, second maintenance unit is also used to safeguard third information aggregate, described Three information aggregates include device identification and the third contingency table of the 6th network equipment, and the third contingency table includes the 6th net The device identification of the device identification of network equipment and the 7th network equipment with the 6th network equipment with connection relationship；Its In, the 6th network equipment is the sub-node equipment of second network equipment, and the connection relationship includes the 7th net Network equipment be directly connected to the 6th network equipment or the 7th network equipment and the 6th LA Management Room in succession It connects.

In an optional implementation, second maintenance unit is also used to safeguard the 5th information aggregate and the 6th letter Breath set；

6th information aggregate includes device identification and the 6th contingency table of the 11st network equipment, the 6th association Table include the 11st network equipment device identification and with the 11st network equipment have connection relationship the 12nd The device identification of the network equipment；Wherein, the 11st network equipment is the sub-node equipment of second network equipment, described Connection relationship includes that the 12nd network equipment is directly connected to or the 12nd network with the 11st network equipment Equipment is indirectly connected with the 11st network equipment.

13rd aspect, the embodiment of the invention provides a kind of terminal devices, which is characterized in that the terminal device packet It includes: processor, memory and transceiver, in which:

The processor, the memory and the transceiver are connected with each other, and the memory is for storing computer journey Sequence, the computer program include program instruction, and the processor is configured for calling described program instruction, execute following step It is rapid:

Media access control sub-protocol data units MAC subPDU is sent to the network equipment, the MAC subPDU includes First instruction information and media access control Service Data Unit MAC SDU, the first instruction information indicate the MAC SDU Message including Request System information；

Receive the system information that the network equipment is sent.

Fourteenth aspect, the embodiment of the invention provides a kind of terminal devices, which is characterized in that the terminal device packet It includes: processor, memory and transceiver, in which:

PRACH resource is selected to send from the first Physical Random Access Channel PRACH resource collection to the network equipment random Access lead；When the first PRACH resource collection is that the user equipment initiating random access procedure carrys out Request System information For sending the set of PRACH resource used in random access preamble；

Media access control sub-protocol data units MAC subPDU, the MAC subPDU transmission are sent to the network equipment It is the message for requesting the first system information；

Receive the first system information that the network equipment is sent.

15th aspect, the embodiment of the invention provides a kind of first network equipment, which is characterized in that the first network Equipment includes: processor, memory and transceiver, in which:

Media access control sub-protocol data units the MAC subPDU, the MAC subPDU that receiving terminal apparatus is sent Including the first instruction information and media access control Service Data Unit MAC SDU, the first instruction information indicates the MAC SDU includes the message of Request System information；

Request message is sent to second network equipment, the request message includes the message of the Request System information；

System information is sent to the terminal device.

16th aspect, the embodiment of the invention provides a kind of second network equipments, which is characterized in that second network Equipment includes: processor, memory and transceiver, in which:

The request message that first network equipment is sent is received, the request message is the first network equipment according to first After instruction information identifies that MAC subPDU is used for Request System information, the message of transmission, wherein the MAC subPDU is eventually End equipment is sent to the first network equipment, and the MAC subPDU includes the first instruction information and media access control industry Be engaged in data cell MAC SDU, and the first instruction information indicates that the MAC SDU includes the message of Request System information；

Response message is sent to the first network equipment, so that the first network equipment is sent to the terminal device System information.

17th aspect, the embodiment of the invention provides a kind of first network equipment, which is characterized in that the first network Equipment includes: processor, memory and transceiver, in which:

First message is sent to second network equipment；The first message includes system information request message and cell mark Know；The cell ID is the mark of cell corresponding to the system information request message；Corresponding to the cell ID Cell belongs to the third network equipment；

Receive the second message that second network equipment is sent；The second message indicates the third network equipment hair Send the system information of cell corresponding to the system information request message；It include the cell ID in the second message.

18th aspect, the embodiment of the invention provides a kind of second network equipment, second network equipment includes: place Manage device, memory and transceiver, in which:

The first message that first network equipment is sent is received, the first message includes system information request message and cell Mark；The cell ID is the mark of cell corresponding to the system information request message；Corresponding to the cell ID Cell belong to the third network equipment；

Second message is sent to the first network equipment, the second message indicates that the third network equipment sends institute State the system information of cell corresponding to system information request message；It include the cell ID in the second message.

19th aspect, the embodiment of the invention provides a kind of communication system, including terminal device, first network equipment and Second network equipment；The first network equipment is times of the 7th aspect or eighth aspect or the 7th aspect or eighth aspect Terminal device described in one optional implementation of meaning, the first network equipment are the 9th aspect or the 9th aspect Any one optional implementation described in first network equipment, second network equipment be the tenth aspect, or First network equipment described in any one optional implementation of tenth aspect.

20th aspect, the embodiment of the invention provides a kind of communication systems, including first network equipment and the second net Network equipment；The first network equipment is retouched by any one optional implementation of the tenth one side or the tenth one side The terminal device stated, second network equipment are any one optional realization of the 12nd aspect or the 12nd aspect Second network equipment described in mode.

20th on the one hand, described computer-readable the embodiment of the invention provides a kind of computer readable storage medium Storage medium is stored with computer program, and the computer program includes program instruction, and described program instruction is when by terminal device Processor when executing, so that the processor of the terminal device is executed any one of above-mentioned first aspect or first aspect can Method described in the implementation of choosing；Or described program instruction makes institute when being executed by the processor of first network equipment The processor for stating first network equipment executes any one optional implementation institute of above-mentioned second aspect or second aspect Method or the described program instruction of description make second network equipment when being executed by the processor of second network equipment Processor execute method described in any one optional implementation of the above-mentioned third aspect or the third aspect.

22nd aspect, it is described computer-readable the embodiment of the invention provides a kind of computer readable storage medium Storage medium is stored with computer program, and the computer program includes program instruction, and described program instruction is when by first network When the processor of equipment executes, the processor of the first network equipment is made to execute times of above-mentioned 5th aspect or the 5th aspect Method described in an optional implementation of anticipating or described program instruction are executed when by the processor of second network equipment When, so that the processor of second network equipment is executed any one optional realization of above-mentioned 6th aspect or the 6th aspect Method described in mode.

Implement the embodiment of the present invention, it can be by the way that the value or reserved bit of LCID in the MAC subPDU of transmission, be arranged Value as first instruction information so that first network equipment can according to it is described first instruction information identify MAC SDU pass Defeated is the message of Request System information, it is possible to prevente effectively from the system information of the refusal terminal device of network equipment mistake is asked It asks, the waste of transfer resource can also be avoided, in addition, in the first message and second network equipment hair of the transmission of first network equipment Cell ID or device identification are added in the second message sent, first network equipment and second network equipment are described small by safeguarding Area's mark and contingency table or the information aggregate of the device identification and contingency table, it is ensured that first message or second message are just True is transmitted between first network equipment and second network equipment.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described.

Fig. 1 is a kind of flow diagram of terminal device to network request system information；

Fig. 2 is the system architecture schematic diagram of the 5G access net in the case of a kind of CU-DU separation；

Fig. 3 is flow diagram of the user equipment based on CU-DU separation system Request System information；

Fig. 4 is the chain of command agreement stack schematic diagram of CU-DU separation system；

Fig. 5 A is a kind of single-hop relay framework schematic diagram；

Fig. 5 B is a kind of multi-hop relay configuration diagram；

Fig. 6 is a kind of flow diagram of the indicating means of Request System information provided in an embodiment of the present invention；

Fig. 7 is a kind of MAC PDU structural schematic diagram provided in an embodiment of the present invention；

Fig. 8 is the schematic diagram of a kind of value of LCID provided in an embodiment of the present invention and instruction information；

Fig. 9 is a kind of flow diagram of the indicating means of Request System information provided in an embodiment of the present invention；

Figure 10 is a kind of flow diagram of the indicating means of Request System information provided in an embodiment of the present invention；

Figure 11 is the stream of the transmission method of a kind of system information request message provided in an embodiment of the present invention and response message Journey schematic diagram；

Figure 12 is a kind of schematic diagram of route system provided in an embodiment of the present invention；

Figure 13 is the schematic diagram of another route system provided in an embodiment of the present invention；

Figure 14 is the schematic diagram of another route system provided in an embodiment of the present invention；

Figure 15 is the stream of the transmission method of a kind of system information request message provided in an embodiment of the present invention and response message Journey schematic diagram；

Figure 16 is a kind of structural schematic diagram of terminal device provided in an embodiment of the present invention；

Figure 17 is the structural schematic diagram of another terminal device provided in an embodiment of the present invention；

Figure 18 is a kind of structural schematic diagram of first network equipment provided in an embodiment of the present invention；

Figure 19 is a kind of structural schematic diagram of second network equipment provided in an embodiment of the present invention；

Figure 20 is the structural schematic diagram of another first network equipment provided in an embodiment of the present invention；

Figure 21 is the structural schematic diagram of another second network equipment provided in an embodiment of the present invention；

Figure 22 is the structural schematic diagram of another terminal device provided in an embodiment of the present invention；

Figure 23 is the structural schematic diagram of another terminal device provided in an embodiment of the present invention；

Figure 24 is the structural schematic diagram of another first network equipment provided in an embodiment of the present invention；

Figure 25 is the structural schematic diagram of another second network equipment provided in an embodiment of the present invention；

Figure 26 is the structural schematic diagram of another first network equipment provided in an embodiment of the present invention；

Figure 27 is the structural schematic diagram of another second network equipment provided in an embodiment of the present invention；

Specific embodiment

Below in conjunction with attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.

When some terminal device needs certain system information, which sends request message to network, to request The Web broadcast system message.It is a kind of terminal device to the flow diagram of network request system information, such as Fig. 1 referring to Fig. 1 It is shown, before terminal device is based on Physical Random Access Channel (Physical Random Access, PRACH) transmission random access Lead, with notify network its by send request on demand obtain system information request, receive network transmission random access ring Ying Hou, terminal device sends system information request, after receiving system information request, in response to the system information request, net Network is reserved for sending system information response (when not having with the forms of broadcasting in the resource of down channel broadcast system information When premises equipment requests system information, which can be used for other signals transmission).

In 5G NR system, CU-DU isolation technics is introduced.The base station of NR (gNB) is logically divided into two Node, gNB-CU (Central Unit) and gNB-DU (Distributed Unit), a gNB can have CU and one A or multiple DU compositions.Referring to fig. 2, be the system architecture diagram of 5G access net in the case of a kind of CU-DU separation, CU and DU it Between interface be F1 interface, gNB pass through general User Network Interface (User to Network interface Universal, Uu) it is connected with user equipment (User Equipment, UE), pass through next-generation interface (Next Generation, NG) it is connected with 5G core net.

When terminal device is UE, the base station comprising CU-DU separation in network, the system information that UE needs to obtain on demand by After CU is generated, it is sent to DU, in Request System information, UE needs to send system information request message to CU by DU UE, so System information is obtained by DU broadcast again afterwards.It is that user equipment is based on CU-DU separation system Request System information referring to Fig. 3 Flow diagram.The CU of base station sends the system information of cell to DU, and DU is received and stored, and user equipment triggers system Information request, the DU of Xiang Jizhan send random access preamble, DU receive it is leading after send random access response, UE is being received To after response, system information request message is sent, after DU receives system information request message, passes through a F1 application protocol System information request message is sent to CU by (F1-Application Protocol, F1-AP) message, CU after interpretation again System information transmission command messages are sent to DU by a F1AP message, DU is receiving system information transmission command messages Backward UE broadcast system information.

The chain of command agreement stack of system based on CU-DU shown in Fig. 2 separation is as shown in Figure 4, it can be seen that DU does not have Packet Data Convergence Protocol (Packet Data Convergence Protocol, PDCP), radio resource control (Radio Resource Control, RRC) and Non-Access Stratum protocols (Non-AccessStratum, NAS) only have physics Layer protocol (Physical, PHY), media access control protocol (Medium Access Control, MAC), wireless spread-spectrum technology Agreement (Radio Link Control, RLC), Internet Protocol (Internet Protocol, IP), Flow Control Transmission Protocol (Stream Control Transmission Protocol, SCTP) and F1 application protocol (F1-Application Protocol, F1-AP).The message for the Request System information that UE is sent is RRC information, since DU does not have wireless heterogeneous networks association It discusses (Radio Resource Control, RRC), the RRC information cannot be decoded, DU can only pass through one according to F1 application protocol The RRC information is transmitted to CU by F1AP message, CU have radio resource control (Radio Resource Control, RRC), the RRC information can be decoded, after the RRC information for decoding the Request System information, according to F1 application protocol, passes through one System information transmission command messages are sent to DU by F1AP message, and notice DU removes broadcast system information.

Specifically, being sent out for the UE of RRC Idle state (RRC_Idle) and RRC deactivated state (RRC_Inactive) When sending system information request message, may by common control channel in logic channel (Common Control Channel, CCCH) RRC information is transmitted, and CCCH is also used for transmission RRC connection and establishes to request simultaneously, RRC connection recovery request, RRC RRC informations, the DU such as connection reconstruction request can only know according to media access control protocol (Medium Access Control, MAC) Not Chu UE send be CCCH transmission RRC information, the RRC information can not be decoded, cannot learn the content of RRC information, can not It treats these message with a certain discrimination, and only the RRC information can be transmitted to CU by same message.In addition, DU is doing receiving control When processed, due to cannot correctly distinguish the RRC information, consequently, it is possible to the UE by Request System information of mistake gives refusal, and DU is to forward the RRC information by same message, may include unnecessary information, cause the waste of resource.Therefore, The addition instruction information in the RRC information of the UE Request System information sent is needed, so that DU can correctly identify that UE is sent out The RRC information sent is for Request System information.

In order to enhance the network coverage, network capacity is improved, a kind of effective method is that relaying is disposed between UE and base station Node, in the system architecture for deploying relay node, UE is connected by relay node with base station.Referring to Fig. 5 A and Fig. 5 B, Fig. 5 A is a kind of single-hop relay framework schematic diagram, and Fig. 5 B is a kind of multi-hop relay configuration diagram.When UE needs to obtain system letter When breath, system information request message is sent to relay node, relay node forwards it to host base station, and relay node is receiving After the system information transmission command messages sent to host base station, to UE broadcast system information.

Relay node is similar with DU, without radio resource control (Radio Resource Control, RRC), no The RRC information of UE transmission can be decoded, relay node can only be according to F1 application protocol, by a F1AP message by the RRC information It is transmitted to host base station, host base station has radio resource control (Radio Resource Control, RRC), can The RRC information is decoded, after the RRC information for decoding the Request System information, according to F1 application protocol, passes through a F1AP message System information transmission command messages are sent to relay node, notice relay node removes broadcast system information.

Therefore, gNB-CU, and the system for being connected to core net by gNB-CU are connected to by gNB-DU for UE (CU-DU separation system) or UE are connected to base station, and the system for being connected to core net by base station by relay node (relay system) requires the addition instruction information in the RRC information of the UE Request System information sent, so that DU or relaying section Point can correctly identify that the RRC information that UE is sent is for Request System information, to avoid DU or relay node mistake The UE by Request System information to refusal and cause the waste of transfer resource.

Next the description that Fig. 1-5 will be combined, introduces a kind of instruction of Request System information provided in an embodiment of the present invention Method.

Refer to Fig. 6.Fig. 6 is a kind of process signal of indicating means of Request System information provided in an embodiment of the present invention Figure, this method includes but is not limited to following steps:

S101: terminal device sends media access control sub-protocol data units MAC subPDU to the network equipment, described MAC subPDU includes the first instruction information and media access control Service Data Unit MAC SDU, the first instruction information Indicate that the MAC SDU includes the message of Request System information.

In one possible implementation, the terminal device is applied to CU-DU separation system or relay system, institute State that the network equipment includes base station distribution cells D U or the network equipment includes relay node.

Specifically, terminal device can be user equipment (UE), and UE sends DU from MAC to base station or relay node SubPDU, DU or relay node identify that MAC SDU transmission is according to the first instruction information for including in MAC subPDU The message of Request System information.

Specifically, user equipment (UE) to DU perhaps relay node send MAC subPDU before UE first to DU or in Lead code, DU or relay node are sent after the lead code for receiving UE transmission after node, send random access response to UE, Uplink authorization is provided.Based on the uplink authorization, UE sends the MAC comprising MAC subPDU to DU or relay node again PDU。

In a kind of possible realization, the first instruction information includes patrolling in the MAC subheader that the MAC subPDU includes The value of channel logo LCID is collected, the value of the LCID is used to including indicate the MAC SDU transmission be Request System information Message.

Specifically, UE can transmit the radio resource control of carrying Request System information by public control logic channel CCCH Agreement RRC information processed.For transmitting uplink data, format such as Fig. 7 institute of media access control protocol data unit MAC PDU Show, comprising one or more MAC subPDU, MAC subPDU, there are three types of types in a MAC PDU: transmission MAC SDU's MAC subPDU, the MAC subPDU and transmission added bit of transmission media access control layer protocol integrated test system signaling (MACCE) (padding) MAC subPDU.The each MAC subPDU for transmitting MAC SDU and MACCE includes subheader (subheader), wherein the LCID field in subheader is used to indicate the logic channel where the corresponding MAC SDU of the subheader, or Person's subheader is also used for indicating the type of corresponding MACCE.

Since DU or relay node can interpret the corresponding subheader information of MAC subPDU, it is possible to MAC be arranged For the value of Logic Channel Identifier LCID in head as instruction information, DU or relay node can be according to the LCID in MAC subheader Value determine the MAC subheader corresponding MAC SDU transmission be Request System information message.

Even if the RRC that cannot decode MAC SDU transmission disappears as can be seen that DU or relay node do not have rrc layer agreement Breath, but the value by interpreting the Logic Channel Identifier LCID in the MAC subheader that MAC subPDU includes, can still determine MAC What SDU was transmitted is the message of Request System information, effectively prevents the refusal terminal device of DU or relay node mistake.

In a kind of possible realization, the message of Request System information includes: to be passed by public control logic channel CCCH Defeated radio resource control RRC information, or the radio resource control transmitted by dedicated control logic channel DCCH RRC information.

In a kind of possible realization, when the value of LCID is the first value, the value of the LCID indicates the MAC SDU transmission Be RRC information by the CCCH or DCCH the Request System information transmitted.

It specifically, is the current value of the defined LCID for uplink and patrolling where MAC SDU referring to Fig. 8 Collect the corresponding relationship of the type of channel or MAC control signaling.As shown in Figure 8, LCID include 6 bits, when the value of LCID be When some value between 100001 to 110110, currently without being defined, belong to reserved value, it can be by the way that LCID be arranged For 100001 to 110110 some value therein, such as 110011 the first values of conduct, indicate the LCID's by setting Be worth corresponding MAC SDU transmission is the RRC information by the CCCH or DCCH Request System information transmitted.It can manage Solution also can be set other values and be indicated.When can also be second value by the way that the value of LCID is arranged, MAC be indicated The corresponding MAC SDU transmission being contained in the MAC subPDU is to establish to request by the RRC connection of CCCH transmission Message indicates the corresponding MAC SDU being contained in the MAC subPDU of the MAC subheader when value of LCID is third value Transmission is that the RRC connection re-establishment request message transmitted by CCCH indicates the MAC when value of LCID is four value The corresponding MAC SDU transmission being contained in the MAC subPDU is RRC connection recovery message by CCCH transmission, Wherein, the second value of the LCID, third value and the 4th value can be identical value, or different values.

It is appreciated that DU or relay node are in the MAC subPDU for receiving terminal device transmission, it is only necessary to judge MAC The value for the LCID in MAC subheader that subPDU is included whether be the first value be assured that MAC SDU transmission whether be to ask The message of system information is sought, if the value of LCID is the first value, can determine MAC SDU transmission is disappearing for Request System information Breath, whole process are realized simple.

In a kind of possible realization, terminal device is sent to the network equipment before MAC subPDU, further includes:

It is appreciated that terminal device cannot be supported to use LCID's if the network equipment does not identify the value of LCID First value come indicate MAC SDU transmission be Request System information message, even if terminal device send include LCID first The MAC subPDU of value is also nonsensical, and what the network equipment not can determine that MAC SDU transmission still is the message of Request System information. So the network equipment needs to send an instruction information in advance, the first value of LCID is can be used in notice terminal device.

In a kind of possible realization, second indication information is contained in the primary system information MIB of the network equipment broadcast In, or be contained in the system information block 1SIB1 of the network equipment broadcast.

Specifically, MIB and SIB1 is the information that the network equipment must broadcast, and terminal device also has to listen to, by MIB It include second indication information with SIB1, it is ensured that terminal device reliably receives the second indication information.

In a kind of possible realization, the first instruction information includes pre- in the MAC subheader that the MAC subPDU includes The value of bit is stayed, what the value of the reserved bit indicated the MAC SDU transmission is the message of Request System information.

Specifically, as shown in fig. 7, in the MAC subheader that MAC subPDU includes, there is a reserved bit R, due to DU or Person's relay node can interpret the corresponding subheader information of MAC subPDU, it is possible to and the value by the way that R is arranged is used as instruction information, What DU or relay node can determine MAC SDU transmission according to the value of R is the message of Request System information.

Even if the RRC that cannot decode MAC SDU transmission disappears as can be seen that DU or relay node do not have rrc layer agreement Breath, but the value by interpreting the reserved bit R in the MAC subheader that MAC subPDU includes can still determine that MAC SDU is transmitted Be Request System information message, effectively prevent the refusal terminal device of DU or relay node mistake.

In a kind of possible realization, when the value of the reserved bit is the first value, indicate that the MAC subheader is corresponding What MAC SDU was transmitted is the RRC information by the CCCH or DCCH Request System information transmitted；

Specifically, the MAC SDU that terminal device is sent is the RRC information of Request System information, and terminal device is by the MAC The value of reserved bit R is set as the first value in the corresponding MAC subheader of SDU, and the MAC SDU that terminal device is sent is that RRC connection is built When vertical request message or RRC connection re-establishment request message or RRC connection recovery message, terminal device is by the MAC SDU The value of reserved bit R is set as second value in corresponding MAC subheader, wherein the first value value and second value value can be 0 or 1, i.e., when the first value is 1, when second value 0 or the first value are 0, second value 1, naturally it is also possible to it is other values, this In with no restrictions.

It is appreciated that DU or relay node are in the MAC subPDU for receiving terminal device transmission, it is only necessary to judge MAC The value for the R in MAC subheader that subPDU is included whether be the first value be assured that MAC SDU transmission whether be request system The message for information of uniting, if the value of R is the first value, can determine MAC SDU transmission is the message of Request System information, entirely Process is simple and reliable.

S102: terminal device receives the system information that the network equipment is sent.

In a kind of possible realization, before terminal device receives the system information that the network equipment is sent, net is received The scheduling information for the system information that network equipment is sent, terminal device can be believed by receiving the main system of network equipment broadcast MIB or system information block 1SIB1 is ceased, the scheduling information of the system information, terminal device are obtained from the MIB or SIB1 The system information is received in preset time further according to the scheduling, to obtain the system information of network equipment broadcast.

It is appreciated that, in preset period of time listening broadcast channel, obtaining network equipment broadcast by receiving schedule information System information, it is ensured that terminal device discontinuous reception improves the receiving efficiency of terminal device.

Refer to Fig. 9.Fig. 9 is a kind of process signal of indicating means of Request System information provided in an embodiment of the present invention Figure, this method includes but is not limited to following steps:

S201: the media access control sub-protocol data units MAC that first network equipment receiving terminal apparatus is sent SubPDU, the MAC subPDU include the first instruction information and media access control Service Data Unit MAC SDU, and described the One instruction information indicates that the MACS DU includes the message of Request System information.

Specifically, first network equipment can be the DU or relay node of base station, and user equipment can be UE, and UE is to base Perhaps relay node sends MAC subPDU DU or relay node according to the first instruction for including in MAC subPDU to the DU to stand Information identifies that MAC SDU transmission is the message of Request System information.

In a kind of possible realization, before the MAC subPDU that the first network equipment receiving terminal apparatus is sent, Further include:

It is appreciated that terminal device cannot be supported to use if first network equipment does not identify the value of LCID The first value of LCID come indicate MAC SDU transmission be Request System information message, even if terminal device send include LCID The first value MAC subPDU it is also nonsensical, first network equipment not can determine that still MAC SDU transmission be Request System The message of information.So first network equipment needs to send an instruction information in advance, LCID is can be used in notice terminal device The first value.

In a kind of possible realization, second indication information is contained in the primary system information of the first network device broadcasts In MIB, or it is contained in the system information block 1SIB1 of the first network device broadcasts.

S202: the first network equipment sends message to second network equipment, and the message includes the Request System The message of information.

Specifically, when the RRC information of DU transmission Request System information is to CU or relay node transmission request system The RRC information for information of uniting is to the RRC information of another relay node or a relay node transmission Request System information to place It when master base station, is transmitted by a F1AP message.

In a kind of possible realization, a F1AP message is defined, the F1AP message-specific is in transmission Request System letter The RRC information of breath.It include: the type of message of the F1AP message in the F1AP message；The cell of the cell of UE Request System information Identification code (Cell ID), the Cell ID are the unique identification of cell in the world；RRC comprising Request System information disappears The container of breath.

In a kind of possible realization, it is multiplexed existing F1AP message, what it is when F1AP message transmission is Request System letter The RRC information of breath only includes in the F1AP message: the type of message of the F1AP message；The cell of UE Request System information it is small Area's identification code (Cell ID), the Cell ID are the unique identification of cell in the world；RRC comprising Request System information The container of message；It optionally, can also include: to indicate that is transmitted in the message is the instruction of the RRC information of Request System information Information.

S203: the first network equipment sends system information to the terminal device.

Specifically, first network equipment is receiving the response message of second network equipment transmission and then to the end End equipment sends system information, wherein includes system information transmission order in response message, second network equipment is also by one The response message is sent to first network equipment by F1AP message.

In a kind of possible realization, first network equipment is before sending system information to the terminal device, and first The network equipment can pass through the principal series of reception first network device broadcasts to terminal device transmission timing arrangement information, terminal device Unite information MIB or system information block 1SIB1, obtains schedule information from the MIB or SIB1, terminal device further according to The schedule information obtains the system information of first network device broadcasts in preset period of time listening broadcast channel.

It is appreciated that first network equipment passes through transmission timing arrangement information, so that terminal device is monitored in preset period of time Broadcast channel obtains the system information of network equipment broadcast, it is ensured that terminal device discontinuous reception improves terminal device Receiving efficiency.

Referring to Figure 10.Figure 10 is that a kind of process of the indicating means of Request System information provided in an embodiment of the present invention is shown It is intended to, this method includes but is not limited to following steps:

S301: terminal device selects PRACH resource to network from the first Physical Random Access Channel PRACH resource collection Equipment sends random access preamble；The first PRACH resource collection is the user equipment initiating random access procedure to ask It asks when system information for sending the set of PRACH resource used in random access preamble.

Specifically, the first Physical Random Access Channel PRACH resource collection is that DU or relay node are aimed at and managed What the UE in the cell of reason was configured, it is different from general PRACH resource.

In a kind of possible realization, UE receives the DU or relay node hair before sending the random access preamble The first system information sent includes the first PRACH resource collection in the first system information.

As can be seen that the random access preamble that sends of the PRACH resource that is selected from the first PRACH resource collection of UE so as to It is identified in DU or relay node, new instruction information can be increased without, realized simple.

In a kind of possible realization, the second system information is the primary system information MIB of DU or relay node broadcasts, Or the system information block 1SIB1 of the network equipment broadcast.

As can be seen that DU or relay node transmit the second system by primary system information MIB or system information block 1SIB1 System information, does not need to transmit second system information by the information of other forms again, has saved transfer resource.

S302: the terminal device sends media access control protocol data unit MAC PDU to the network equipment, described Message comprising request the first system information in MAC PDU.

Specifically, due to the random access preamble that DU or relay node are sent according to the UE received, institute can be identified Stating random access preamble is the PRACH resource that UE is selected from the first Physical Random Access Channel PRACH resource collection, DU or in Corresponding ascending resource position UL grant is distributed after node, and the UL grant is sent to by UE by RAR message, later The RRC information confirmation that DU or relay node can be sent by the UE received from the UL grant is disappearing for Request System information Breath.

S303: the terminal device receives the first system information that the network equipment is sent.

In a kind of possible realization, before terminal device receives the system information that the network equipment is sent, net is received The scheduling information for the system information that network equipment is sent, terminal device can be believed by receiving the main system of network equipment broadcast MIB or system information block 1SIB1 is ceased, the scheduling information is obtained from the MIB or SIB1, terminal device is further according to described Scheduling receives the system information in preset time, to obtain the system information of network equipment broadcast.

It is appreciated that the system information is received in preset time according to the scheduling by receiving scheduling information, thus Obtain the system information of network equipment broadcast, it is ensured that terminal device discontinuous reception improves the reception effect of terminal device Rate.

Referring to Figure 11.Figure 11 is a kind of biography of system information request message and response message provided in an embodiment of the present invention The flow diagram of transmission method, this method include but is not limited to following steps:

S401: first network equipment sends first message to second network equipment；The first message includes system information Request message and cell ID；The cell ID is the mark of cell corresponding to the system information request message；It is described Cell corresponding to cell ID belongs to the third network equipment.

S402: the first network equipment receives the second message that second network equipment is sent；The second message Indicate that the third network equipment sends the system information of cell corresponding to the system information request message；Described second disappears It include the cell ID in breath；Wherein, the first network equipment and the third network equipment are consolidated network equipment, or First network equipment described in person and the third network equipment are heterogeneous networks equipment.

Specifically, first network equipment can be relay node, and second network equipment can be another relay node or place Master base station.If first network equipment and the third network equipment are consolidated network equipment, then it represents that first network equipment does not have Sub-node equipment shows first network equipment if first network equipment and the third network equipment are heterogeneous networks equipment There are sub-node equipments.

Specifically, first message and second message can be F1AP message, and system information request message is RRC information.

Specifically, the third network equipment can manage one or more cells, and the cell ID in first message can be The cell ID of cell where the UE of one of Request System information under the third network equipment.

In a kind of possible realization, second network equipment maintenance has first information set, the first information collection The mark and the first contingency table of the cell directly managed including second network equipment are closed, first contingency table includes the 4th The mark of the cell of the device identification of the network equipment and the 4th network device management；Wherein, the 4th network equipment is The sub-node equipment of second network equipment；The mark of the cell of 4th network device management includes the 4th network The mark of the cell of the mark and the 4th network equipment indirect control for the cell that equipment directly manages；

Specifically, referring to Figure 12, as shown in figure 12, including host base station (DgNB), relay node 1 arrive relay node 7 (RN1-RN7).The cell that DgNB is directly managed is cell 18 (CGI18), cell 19 (CGI19), cell 20 (CGI20), DgNB Sub-node equipment include RN1 and RN2, the cell that RN1 is directly managed is cell 16 (CGI16) and cell 17 (CGI17), RN2 The cell directly managed is cell 13 (CGI13), cell 14 (CGI14) and cell 15 (CGI15)；The sub-node equipment packet of RN1 RN3 and RN4 are included, the sub-node equipment of RN2 includes RN5, and the cell that RN3 is directly managed is cell 6 (CGI6), cell 7 (CGI7) With cell 8 (CGI8), the cell that RN4 is directly managed is cell 9 (CGI9) and cell 10 (CGI10), the cell that RN5 is directly managed It is cell 11 (CGI11) and cell 12 (CGI12)；RN3 and RN5 does not have sub-node equipment, and the sub-node equipment of RN4 includes RN6 And the cell that RN7, RN6 are directly managed is cell 1 (CGI1) and cell 2 (CGI2), the cell that RN7 is directly managed is cell 3 (CGI3), cell 4 (CGI4) and cell 5 (CGI5), RN6 and RN7 do not have sub-node equipment.

For DgNB, the content of its contingency table should be: CGI1, CGI2, CGI3, CGI4, CGI5, CGI6, CGI7, CGI8, CGI9, CGI10, CGI16, CGI17 belong to RN1；CGI11, CGI12, CGI13, CGI14, CGI15 belong to RN2. So the information for including in the information aggregate of DgNB maintenance is: CGI1, CGI2, CGI3, CGI4, CGI5, CGI6, CGI7, CGI8, CGI9, CGI10, CGI16, CGI17 belong to RN1；CGI11, CGI12, CGI13, CGI14, CGI15 belong to RN2；CGI18, CGI19, CGI20.

Similar, the information for including in the information aggregate of available RN1 maintenance is: CGI1, CGI2, CGI3, CGI4, CGI5 belongs to RN4；CGI6, CGI7, CGI8 belong to RN5；CGI16, CGI17.The information for including in the information aggregate of RN2 maintenance Be: CGI11, CGI12 belong to RN5；CGI13, CGI14, CGI15.The information for including in the information aggregate of RN3 maintenance is: CGI6, CGI7, CGI8.The information for including in the information aggregate of RN4 maintenance is: CGI1, CGI2 belong to RN6；CGI3, CGI4, CGI5 belong to RN7.The information for including in the information aggregate of RN5 maintenance is: CGI11, CGI12.The information for including in the information aggregate of RN6 maintenance It is: CGI1, CGI2.The information for including in the information aggregate of RN7 maintenance is: CGI3, CGI4, CGI5.

Specifically, the information in the information and second set in first information set can be to establish in sub- relay node and connect Notify that father's relay node or host base station record or more by relay node when connecing the perhaps cell of sub- relay node more new management Newly.For example, RN7 notifies that the cell of its management of RN4 includes CGI3, CGI4, CGI5, and RN4 is being received when RN7 and RN4 establish connection To after notification message, CGI3, CGI4 are added in the information aggregate of its maintenance, CGI5 belongs to the information of RN7 and notifies its pipe of RN1 The cell of reason increases CGI3, CGI4, CGI5, after RN1 receives the notification message, adds in the information aggregate of its maintenance CGI3, CGI4, CGI5 belong to the information of RN4 and notify DgNB, and the cell of management increases CGI3, CGI4, CGI5, and DgNB connects After receiving the notification message, CGI3, CGI4 are added in the information aggregate of its maintenance, CGI5 belongs to the information of RN1, so far, whole A renewal process is completed.

As can be seen that being based on first information set and the second information aggregate, what relay node was sent asks comprising system information Seek the first message of message and second message that host base station is sent, by the inclusion of the CGI of the cell of UE Request System information, It can be carried out correctly routing, to avoid increasing additionally in system information request message and system information response message Information.

It is described comprising the device identification of the third network equipment in the first message in a kind of possible realization It include the device identification of the third network equipment in second message, second network equipment maintenance has third information aggregate, The third information aggregate includes device identification and the third contingency table of the 6th network equipment, and the third contingency table includes described The equipment of the device identification of 6th network equipment and the 7th network equipment with the 6th network equipment with connection relationship Mark；Wherein, the 6th network equipment is the sub-node equipment of second network equipment, and the connection relationship includes described 7th network equipment is directly connected to the 6th network equipment or the 7th network equipment and the 6th network equipment It is indirectly connected with；

Specifically, referring to Figure 13, as shown in figure 13, including host base station (DgNB), relay node 1 arrive relay node 7 (RN1-RN7).The sub-node equipment of DgNB is RN1 and RN2, and the sub-node equipment of RN1 is RN3 and RN4, and the child node of RN2 is set Standby is that RN5, RN3 and RN5 do not have sub-node equipment, and the sub-node equipment of RN4 is RN6 and RN7, and RN6 and RN7 do not have child node to set It is standby.

For DgNB, the content of its contingency table should be: RN3, RN4, RN6, RN7 belong to RN1；RN5 belongs to RN2.So the information for including in the information aggregate of DgNB maintenance is: RN3, RN4, RN6, RN7 belong to RN1；RN5 belongs to RN2, RN1 and RN2.

Similar, the information for including in the information aggregate of available RN1 maintenance is: RN6, RN7 belong to RN4；RN3 and RN4.The information for including in the information aggregate of RN2 maintenance is: RN5.RN4 maintenance information aggregate in include information be: RN6 and RN7。

Specifically, the information in the information in third information aggregate and the 4th set, which can be to establish in sub- relay node, connects Connect notifies father's relay node or host base station to record or update when perhaps sub- relay node updates connection by sub- relay node. For example, RN4 adds the relay node (child node) being directly connected in the information aggregate of its maintenance when RN7 and RN4 establish connection It is the information of RN7 and the relay node of its connection of RN1 is notified to increase RN7, after RN1 receives the notification message, in its maintenance Information aggregate in add RN4 connection relay node include the information of RN7 and notify DgNB its connection relay node increase After receiving the notification message, the relay node that RN1 connection is added in the information aggregate of its maintenance includes by RN7, DgNB RN7, so far, entire renewal process are completed.

As can be seen that the first message comprising system information request message and host base station that send in relay node are sent out In the second message sent, by the inclusion of UE Request System information cell CGI and the cell belonging to relay node mark, Such as a UE under RN7 requests the system information of CGI1, then the first message that RN7 is sent includes CGI1 and RN7, equally It also include CGI1 and RN7 in the second message that DgNB is sent, so that it may it is correctly routed using the mark of relay node, The advantage of this method is the reduction of the information content of relay node and host base station storage.

It is described comprising the device identification of the third network equipment in the second message in a kind of possible realization Second network equipment is host base station, and the first network equipment is relay node；

Specifically, referring to Figure 14, as shown in figure 14, including host base station (DgNB), relay node 1 arrive relay node 7 (RN1-RN7).Because in the 5th set that all relay nodes are all safeguarded with DgNB direct or indirect connection, DgNB The information for including is: CGI1, CGI2 belong to RN6；CGI3, CGI4, CGI5 belong to RN7；CGI6, CGI7, CGI8 belong to RN3； CGI9, CGI10 belong to RN4；CGI11, CGI12 belong to RN5；CGI13, CGI14, CGI15 belong to RN2；CGI16, CGI17 belong to RN1；CGI18, CGI19, CGI20.

The sub-node equipment of DgNB is RN1 and RN2, and the sub-node equipment of RN1 is RN3 and RN4, the sub-node equipment of RN2 It is that RN5, RN3 and RN5 do not have sub-node equipment, the sub-node equipment of RN4 is RN6 and RN7, and RN6 and RN7 do not have child node to set It is standby.

For DgNB, the content of its 6th contingency table should be: RN3, RN4, RN6, RN7 belong to RN1；RN5 belongs to In RN2.So the information for including in the 6th information aggregate of DgNB maintenance is: RN3, RN4, RN6, RN7 belong to RN1；RN5 belongs to RN2, RN1 and RN2.

Similar, the information for including in the 7th information aggregate of available RN1 maintenance is: RN6, RN7 belong to RN4；RN3 And RN4.The information for including in 7th information aggregate of RN2 maintenance is: RN5.The letter for including in 7th information aggregate of RN4 maintenance Breath is: RN6 and RN7.

Specifically, the information in the information in third information aggregate and the 4th set, which can be to establish in sub- relay node, connects Connect notifies father's relay node or host base station to record or update when perhaps sub- relay node updates connection by sub- relay node. For example, RN4 adds the relay node (child node) being directly connected in the information aggregate of its maintenance when RN7 and RN4 establish connection It is the information of RN7 and the relay node of its connection of RN1 is notified to increase RN7, after RN1 receives the notification message, in its maintenance Information aggregate in add RN4 connection relay node include the information of RN7 and notify DgNB its connection relay node increase After receiving the notification message, the relay node that RN1 connection is added in the information aggregate of its maintenance includes by RN7, DgNB RN7, so far, entire renewal process are completed

As can be seen that DgNB maintains the information aggregate comprising CGI, the information aggregate of maintenance more than relay node In contain CGI and relay node mark corresponding relationship, therefore relay node send first message in, it is only necessary to include The CGI of the cell of UE Request System information, and due to having only included it in the information aggregate of each relay node directly or indirectly The mark of the relay node of connection, therefore, in the second message that DgNB is sent, in addition to the cell comprising UE Request System information CGI outside, it is also necessary to the mark including relay node belonging to the cell just can be routed correctly, guarantee message transmission Reliability.Such as a UE under RN7 requests the system information of CGI1, a needs include in the first message that RN7 is sent CGI1, and in the second message that DgNB is sent, other than comprising CGI1, it is also necessary to include RN7.

Referring to Figure 15.Figure 15 is a kind of biography of system information request message and response message provided in an embodiment of the present invention The flow diagram of transmission method, this method include but is not limited to following steps:

S501: the second network equipment receives the first message that first network equipment is sent, and the first message includes system Information request message and cell ID；The cell ID is the mark of cell corresponding to the system information request message； Cell corresponding to the cell ID belongs to the third network equipment.

S502: second network equipment sends second message, the second message instruction to the first network equipment The third network equipment sends the system information of cell corresponding to the system information request message；In the second message Include the cell ID；Wherein, the first network equipment and the third network equipment are consolidated network equipment, Huo Zhesuo It states first network equipment and the third network equipment is heterogeneous networks equipment.

Specifically, similar with above-mentioned S401 and S402, details are not described herein.

It is above-mentioned to illustrate the method for the embodiment of the present invention, following for convenient for better implementing the embodiment of the present invention Above scheme is correspondingly also provided below for cooperating the relevant apparatus for implementing above scheme.

Referring to Figure 16.Figure 16 is a kind of structural schematic diagram of terminal device provided in an embodiment of the present invention.Such as Figure 16 institute Show, terminal device 10 at least may include: the first transmission unit 110, the first receiving unit 120；Wherein:

First transmission unit 110, for sending media access control sub-protocol data units MAC to the network equipment subPDU；

Wherein, the MAC subPDU includes the first instruction information and media access control Service Data Unit MAC SDU, The first instruction information indicates that the MAC SDU includes the message of Request System information.

First receiving unit 120, the system information sent for receiving the network equipment.

In an alternative embodiment, before the terminal device sends MAC subPDU to the network equipment,

First receiving unit 120 is also used to receive the second indication information that the network equipment is sent, and described second Indicate that information is used to indicate the network equipment and the terminal device is supported to use the first value of the LCID.

It will be appreciated that the function of each functional module of the terminal device 10 of the present embodiment can be according to above method embodiment In method specific implementation, details are not described herein again.

Referring to Figure 17.Figure 17 is a kind of structural schematic diagram of terminal device provided in an embodiment of the present invention.Such as Figure 17 institute Show, terminal device 20 at least may include: first selecting unit 210, the second transmission unit 220, the second receiving unit 230；Its In:

First selecting unit 210, for selecting PRACH money from the first Physical Random Access Channel PRACH resource collection Source；

Wherein, the first PRACH resource collection is that the user equipment initiating random access procedure carrys out Request System letter For sending the set of PRACH resource used in random access preamble when breath.

Second transmission unit 220, for sending random access preamble to the network equipment；Second transmission unit 220 is also For sending media access control sub-protocol data units MAC subPDU to the network equipment, the MAC subPDU transmission is Request the message of the first system information.

Second receiving unit 230, the first system information sent for receiving the network equipment.

In an alternative embodiment, before sending the random access preamble, described second connects the terminal device It receives unit 230 and is also used to receive the second system information that the network equipment is sent, include described in the second system information First PRACH resource collection.

Referring to Figure 18.Figure 18 is a kind of structural schematic diagram of first network equipment provided in an embodiment of the present invention.Such as figure Shown in 18, first network equipment 30 at least may include: the first receiving unit 310, the first transmission unit 320；Wherein:

First receiving unit 310, the media access control sub-protocol data units MAC sent for receiving terminal apparatus subPDU；

First transmission unit 320, for sending request message to second network equipment, the request message includes described asks Seek the message of system information.

First receiving unit 310 is also used to receive the response message of second network equipment transmission, and described first sends Unit 320 is also used to send system information to the terminal device.

In an alternative embodiment, before the MAC subPDU that the receiving terminal apparatus is sent, first hair Unit 320 is sent to be also used to send second indication information to the terminal device, the second indication information is used to indicate described the One network equipment supports the terminal device to use the first value of the LCID.

Referring to Figure 19.Figure 19 is a kind of structural schematic diagram of second network equipment provided in an embodiment of the present invention.Such as figure Shown in 19, second network equipment 40 at least may include: the second receiving unit 410, the second transmission unit 420；Wherein:

Second receiving unit 410, for receiving the request message of first network equipment transmission,

Wherein, to be the first network equipment identify that MAC subPDU is used according to the first instruction information to the request message After Request System information, the message of transmission, wherein the MAC subPDU is sent to the first network for terminal device and sets Standby, the MAC subPDU includes the first instruction information and media access control Service Data Unit MAC SDU, and described first Instruction information indicates that the MAC SDU includes the message of Request System information.

Second transmission unit 420, for sending response message to the first network equipment, so that the first network is set It is standby to send system information to the terminal device.

Refer to Figure 20.Figure 20 is a kind of structural schematic diagram of first network equipment provided in an embodiment of the present invention.Such as figure Shown in 20, first network equipment 50 at least may include: the first transmission unit 510, the first receiving unit 520；Wherein:

First transmission unit 510, for sending first message to second network equipment；

Wherein, the first message includes system information request message and cell ID, and the cell ID is the system The mark of cell corresponding to information request message of uniting, cell corresponding to the cell ID belong to the third network equipment.

First receiving unit 520, the second message sent for receiving second network equipment；

In an alternative embodiment, the first network equipment further includes the first maintenance unit 530, first dimension Unit 530 is protected for safeguarding the second information aggregate, second information aggregate includes that the first network equipment directly manages The mark of cell and the second contingency table, first contingency table include the 5th network equipment device identification and the 5th network The mark of the cell of equipment management；Wherein, the 5th network equipment is the sub-node equipment of the first network equipment；It is described The mark of the cell of 5th network device management includes the mark of cell that the 5th network equipment directly manages and described the The mark of the cell of five network equipment indirect controls.

Refer to Figure 21.Figure 21 is a kind of structural schematic diagram of second network equipment provided in an embodiment of the present invention.Such as figure Shown in 21, second network equipment 60 at least may include: the second receiving unit 610, the second transmission unit 620；Wherein:

Second receiving unit 610, for receiving the first message of first network equipment transmission；

Second transmission unit 620, for sending second message to the first network equipment；

In an alternative embodiment, second network further includes the second maintenance unit 630, and second maintenance is single Member 630 is for safeguarding that first information set, the first information set include the cell that second network equipment directly manages Mark and the first contingency table, first contingency table include the 4th network equipment device identification and the 4th network equipment The mark of the cell of management；Wherein, the 4th network equipment is the sub-node equipment of second network equipment；Described 4th The mark for the cell that the mark of the cell of network device management is directly managed including the 4th network equipment and the 4th net The mark of the cell of network equipment indirect control.

Figure 22 is referred to, Figure 22 is a kind of terminal device 100 provided in an embodiment of the present invention, which includes Processor 101, memory 102 and transceiver 103, the processor 101, memory 102 and transceiver 103 pass through 104 phase of bus It connects.

Memory 102 include but is not limited to be random access memory (Random Access Memory, RAM), it is read-only Memory (Read-Only Memory, ROM) or Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only Mmory, EPROM or flash memory), which is used for dependent instruction and data.

The transceiver 103 may include a receiver and a transmitter, for example, wireless radio frequency modules, are described below Processor 101 receive or send some message, specifically can be understood as the processor 101 received by the transceiver or Person sends.

Processor 101 can be one or more central processing units (Central Processing Unit, CPU), locate In the case that reason device 101 is a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

Processor 101 in the terminal device 100 for reading the program code stored in the memory 102, execute with Lower operation:

Processor 101 sends media access control sub-protocol data units MAC to the network equipment by transceiver 103 SubPDU, the MAC subPDU include the first instruction information and media access control Service Data Unit MAC SDU, and described the One instruction information indicates that the MAC SDU includes the message of Request System information.

Processor 101 receives the system information that the network equipment is sent by transceiver 103.

It should be noted that the specific implementation of each operation can also be specifically real according to the method in above method embodiment Existing, details are not described herein again.

Figure 23 is referred to, Figure 23 is a kind of terminal device 200 provided in an embodiment of the present invention, which includes Processor 201, memory 202 and transceiver 203, the processor 201, memory 202 and transceiver 203 pass through 204 phase of bus It connects.

Memory 202 include but is not limited to be random access memory (Random Access Memory, RAM), it is read-only Memory (Read-Only Memory, ROM) or Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only Mmory, EPROM or flash memory), which is used for dependent instruction and data.

The transceiver 203 may include a receiver and a transmitter, for example, wireless radio frequency modules, are described below Processor 201 receive or send some message, specifically can be understood as the processor 201 received by the transceiver or Person sends.

Processor 201 can be one or more central processing units (Central Processing Unit, CPU), locate In the case that reason device 201 is a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

Processor 201 in the terminal device 200 for reading the program code stored in the memory 202, execute with Lower operation:

Processor 201 selects PRACH from the first Physical Random Access Channel PRACH resource collection by transceiver 203 Resource sends random access preamble to the network equipment；The first PRACH resource collection is that user equipment initiation connects at random Enter when process carrys out Request System information for sending the set of PRACH resource used in random access preamble.

Processor 201 sends media access control sub-protocol data units MAC to the network equipment by transceiver 203 SubPDU, the MAC subPDU transmission is to request the message of the first system information.

Processor 201 receives the first system information that the network equipment is sent by transceiver 203.

Figure 24 is referred to, Figure 24 is a kind of first network equipment 300 provided in an embodiment of the present invention, the first network equipment 300 include processor 301, memory 302 and transceiver 303, and the processor 301, memory 302 and transceiver 303 pass through total Line 304 is connected with each other.

Memory 302 include but is not limited to be random access memory (Random Access Memory, RAM), it is read-only Memory (Read-Only Memory, ROM) or Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only Mmory, EPROM or flash memory), which is used for dependent instruction and data.

The transceiver 303 may include a receiver and a transmitter, for example, wireless radio frequency modules, are described below Processor 301 receive or send some message, specifically can be understood as the processor 301 received by the transceiver or Person sends.

Processor 301 can be one or more central processing units (Central Processing Unit, CPU), locate In the case that reason device 301 is a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

Processor 301 in the terminal device 300 for reading the program code stored in the memory 302, execute with Lower operation:

Processor 301 passes through the media access control sub-protocol data units MAC that 303 receiving terminal apparatus of transceiver is sent SubPDU, the MAC subPDU include the first instruction information and media access control Service Data Unit MAC SDU, and described the One instruction information indicates that the MAC SDU includes the message of Request System information.

Processor 301 sends request message to second network equipment by transceiver 303, and the request message includes described The message of Request System information.

Processor 301 sends system information to the terminal device by transceiver 303.

Figure 25 is referred to, Figure 25 is a kind of second network equipment 400 provided in an embodiment of the present invention, second network equipment 400 include processor 401, memory 402 and transceiver 403, and the processor 401, memory 402 and transceiver 403 pass through total Line 404 is connected with each other.

Memory 402 include but is not limited to be random access memory (Random Access Memory, RAM), it is read-only Memory (Read-Only Memory, ROM) or Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only Mmory, EPROM or flash memory), which is used for dependent instruction and data.

The transceiver 403 may include a receiver and a transmitter, for example, wireless radio frequency modules, are described below Processor 401 receive or send some message, specifically can be understood as the processor 401 received by the transceiver or Person sends.

Processor 401 can be one or more central processing units (CentralProcessingUnit, CPU), handle In the case that device 401 is a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

Processor 401 in the terminal device 400 for reading the program code stored in the memory 402, execute with Lower operation:

Processor 401 receives the request message that first network equipment is sent by transceiver 403, and the request message is institute State first network equipment according to the first instruction information identify MAC subPDU for after Request System information, the message of transmission, Wherein, the MAC subPDU is that terminal device is sent to the first network equipment, and the MAC subPDU includes first Indicate that information and media access control Service Data Unit MAC SDU, the first instruction information indicate that the MAC SDU includes The message of Request System information.

Processor 401 sends response message to the first network equipment by transceiver 403, so that the first network Equipment sends system information to the terminal device.

Figure 26 is referred to, Figure 26 is a kind of first network equipment 500 provided in an embodiment of the present invention, the first network equipment 500 include processor 501, memory 502 and transceiver 503, and the processor 501, memory 502 and transceiver 503 pass through total Line 504 is connected with each other.

Memory 502 include but is not limited to be random access memory (Random Access Memory, RAM), it is read-only Memory (Read-Only Memory, ROM) or Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only Mmory, EPROM or flash memory), which is used for dependent instruction and data.

The transceiver 503 may include a receiver and a transmitter, for example, wireless radio frequency modules, are described below Processor 501 receive or send some message, specifically can be understood as the processor 501 received by the transceiver or Person sends.

Processor 501 can be one or more central processing units (Central Processing Unit, CPU), locate In the case that reason device 501 is a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

Processor 501 in the terminal device 500 for reading the program code stored in the memory 502, execute with Lower operation:

Processor 501 sends first message to second network equipment by transceiver 503；The first message includes system Information request message and cell ID；The cell ID is the mark of cell corresponding to the system information request message； Cell corresponding to the cell ID belongs to the third network equipment.

Processor 501 receives the second message that second network equipment is sent by transceiver 503；The second message Indicate that the third network equipment sends the system information of cell corresponding to the system information request message；Described second disappears It include the cell ID in breath.

Figure 27 is referred to, Figure 27 is a kind of second network equipment 600 provided in an embodiment of the present invention, second network equipment 600 include processor 601, memory 602 and transceiver 603, and the processor 601, memory 602 and transceiver 603 pass through total Line 604 is connected with each other.

Memory 602 include but is not limited to be random access memory (Random Access Memory, RAM), it is read-only Memory (Read-Only Memory, ROM) or Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only Mmory, EPROM or flash memory), which is used for dependent instruction and data.

The transceiver 603 may include a receiver and a transmitter, for example, wireless radio frequency modules, are described below Processor 601 receive or send some message, specifically can be understood as the processor 401 received by the transceiver or Person sends.

Processor 601 can be one or more central processing units (Central Processing Unit, CPU), locate In the case that reason device 601 is a CPU, which can be monokaryon CPU, be also possible to multi-core CPU.

Processor 601 in the terminal device 600 for reading the program code stored in the memory 602, execute with Lower operation:

Processor 601 receives the first message that first network equipment is sent by transceiver 603, and the first message includes System information request message and cell ID；The cell ID is the mark of cell corresponding to the system information request message Know；Cell corresponding to the cell ID belongs to the third network equipment

Processor 401 sends second message, the second message instruction to the first network equipment by transceiver 403 The third network equipment sends the system information of cell corresponding to the system information request message；In the second message Include the cell ID.

A kind of computer readable storage medium, above-mentioned computer-readable storage medium are provided in another embodiment of the invention Matter is stored with computer program, and above-mentioned computer program includes program instruction, and above procedure instructs realization when being executed by processor: Media access control sub-protocol data units the MAC subPDU, the MAC that first network equipment receiving terminal apparatus is sent SubPDU includes the first instruction information and media access control Service Data Unit MAC SDU, the first instruction information instruction The MAC SDU includes the message of Request System information；The first network equipment sends request message to second network equipment, The request message includes the message of the Request System information；The first network equipment sends system to the terminal device Information.

Above-mentioned computer readable storage medium can be the above-mentioned terminal device of aforementioned any embodiment, first network equipment Or second the network equipment internal storage unit, such as the hard disk or memory of first network equipment or second network equipment.It is above-mentioned Computer readable storage medium is also possible to the External memory equipment of above-mentioned first network equipment or second network equipment, such as on State the plug-in type hard disk being equipped on first network equipment or second network equipment, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) blocks, flash card (Flash Card) etc..Further, above-mentioned computer can Reading storage medium can also both include the internal storage unit of above-mentioned first network equipment or second network equipment or including outside Store equipment.Above-mentioned computer readable storage medium is for storing above-mentioned computer program and above-mentioned first network equipment or the Other programs and data needed for two network equipments.Above-mentioned computer readable storage medium can be also used for temporarily storing Output or the data that will be exported.

Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, can pass through Computer program is completed to instruct relevant hardware, and the program being somebody's turn to do can be stored in computer-readable storage medium, the journey Sequence is when being executed, it may include such as the process of the embodiment of above-mentioned each method.And storage medium above-mentioned includes: ROM, RAM, magnetic disk Or the medium of the various program storage codes such as CD.

The steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.

Module in the device of that embodiment of the invention can be combined, divided and deleted according to actual needs.

The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims

1. a kind of indicating means of Request System information, which is characterized in that the described method includes:

Terminal device sends media access control sub-protocol data units MACsubPDU, the MACsubPDU packet to the network equipment The first instruction information and media access control Service Data Unit MACSDU are included, the first instruction information indicates the MAC SDU includes the message of Request System information；

2. the method as described in claim 1, which is characterized in that the terminal device is applied to center cell and distribution unit CU-DU separation system or relay system, the network equipment includes base station distribution cells D U or the network equipment includes Relay node.

3. the method as described in claim 1, which is characterized in that the first instruction information includes that the MACsubPDU includes MAC subheader in Logic Channel Identifier LCID value.

4. method as claimed in claim 3, which is characterized in that the message of the Request System information includes: by public control The radio resource control RRC information of logic channel CCCH transmission processed, or pass through dedicated control logic channel DCCH transmission Radio resource control RRC information.

5. the method as claimed in claim 3 or 4, which is characterized in that when the value of the LCID is the first value, the value of the LCID Indicate the MACSDU transmission is the RRC information by the CCCH or DCCH Request System information transmitted.

6. method as claimed in claim 5, which is characterized in that the terminal device to the network equipment send MACsubPDU it Before, the method also includes:

The terminal device receives the second indication information that the network equipment is sent, and the second indication information is used to indicate institute Stating the network equipment supports the terminal device to use the first value of the LCID.

7. method as claimed in claim 6, which is characterized in that the second indication information is contained in the network equipment broadcast Primary system information MIB in, or be contained in the system information block 1SIB1 of network equipment broadcast.

8. method according to claim 1 or 2, which is characterized in that the first instruction information includes the MACsubPDU packet The value of the reserved bit in MAC subheader contained, what the value of the reserved bit indicated the MACSDU transmission is Request System letter The message of breath.

9. method according to claim 8, which is characterized in that the message of the Request System information includes: by public control The radio resource control RRC information of logic channel CCCH transmission processed, or pass through dedicated control logic channel DCCH transmission Radio resource control RRC information.

10. method according to claim 8, which is characterized in that

When the value of the reserved bit is the first value, indicate the MAC subheader corresponding MACSDU transmission be by CCCH or The RRC information of the Request System information of person DCCH transmission；

When the value of the reserved bit is second value, indicate the MAC subheader corresponding MACSDU transmission be by CCCH or Request message or RRC connection re-establishment request message are established in the RRC connection of person DCCH transmission or RRC connection restores message.

11. a kind of indicating means of Request System information, which is characterized in that the described method includes:

Media access control the sub-protocol data units MACsubPDU, the MAC that first network equipment receiving terminal apparatus is sent SubPDU includes the first instruction information and media access control Service Data Unit MACSDU, and the first instruction information indicates institute State the message that MACSDU includes Request System information；

The first network equipment sends request message to second network equipment, and the request message includes the Request System letter The message of breath；

The first network equipment sends system information to the terminal device.

12. method as claimed in claim 11, which is characterized in that the network equipment includes base station distribution cells D U, or The network equipment includes relay node.

13. method as claimed in claim 11, which is characterized in that the first instruction information includes the MACsubPDU packet The value of the Logic Channel Identifier LCID in MAC subheader contained, the value of the LCID are used to include indicating the MACSDU transmission It is the message of Request System information.

14. method as claimed in claim 13, which is characterized in that the message of the Request System information includes: by public The radio resource control RRC information of control logic channel CCCH transmission, or transmitted by dedicated control logic channel DCCH Radio resource control RRC information.

15. method according to claim 13 or 14, which is characterized in that when the value of the LCID is the first value, the LCID Value indicates MACSDU transmission is RRC information by the CCCH or DCCH Request System information transmitted.

16. method as claimed in claim 15, which is characterized in that the first network equipment receiving terminal apparatus was sent Before MACsubPDU, the method also includes:

The first network equipment sends second indication information to the terminal device, and the second indication information is used to indicate institute Stating first network equipment supports the terminal device to use the first value of the LCID.

17. the method described in claim 16, which is characterized in that it is wide that the second indication information is contained in the network equipment In the primary system information MIB broadcast, or it is contained in the system information block 1SIB1 of the network equipment broadcast.

18. a kind of terminal device, which is characterized in that the terminal device includes: processor, memory and transceiver, in which:

The processor, the memory and the transceiver are connected with each other, and the memory is for storing computer program, institute Stating computer program includes program instruction, and the processor is configured for calling described program instruction, executes such as claim 1 To method described in 17 any one.

19. a kind of first network equipment, which is characterized in that the first network equipment includes: processor, memory and transmitting-receiving Device, in which:

20. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey Sequence, the computer program include program instruction, and described program instructs when being executed by a processor, execute the processor such as Method described in claim 1 to 17 any one.

21. a kind of chip system, which is characterized in that the chip system includes at least one processor, memory and interface electricity Road, the memory, the interface circuit and at least one described processor are interconnected by route, at least one processor In be stored with instruction；When described instruction is executed by the processor, any method of claim 1-17 is realized.