System information sending method, device, computer equipment and storage medium

Abstract

The present invention discloses a method, an apparatus, a computer device and a storage medium for sending system information. A relay node can obtain the MSI broadcast by a base station, forward the MSI to the terminal node it serves, obtain the on-demand system information requirement of the terminal node, request the on-demand system information required by the terminal node from the base station, and then send the on-demand system information sent by the base station to the corresponding terminal node. In addition, the relay node can also send the updated system information sent by the base station to the terminal node, etc., thereby solving the problem of sending system information in the relay scenario.

Description

Technical Field

[0001] The present invention relates to wireless network technology, and in particular to a system information sending method, device, computer equipment and storage medium. Background Art

[0002] The 5G New Radio (NR) system introduces a system information broadcast mechanism, including Minimized System Information (MSI) and Other System Information (OSI). Among them, MSI is required to be obtained by the end node, while OSI can be obtained on demand, so OSI can also be called on-demand system information.

[0003] In the prior art, the situation where the end node is within the coverage of the base station is mainly considered, and the system information can be directly broadcast to the end node. However, there is no effective solution to the problem of sending system information in the relay scenario in the prior art. Summary of the invention

[0004] In view of this, the present invention provides a system information sending method, an apparatus, a computer device and a storage medium, which can solve the problem of sending system information in a relay scenario.

[0005] The specific technical solutions are as follows:

[0006] A method for sending system information, comprising:

[0007] The relay node obtains the MSI broadcast by the base station and forwards the MSI to the served end node;

[0008] The relay node obtains the on-demand system information requirement of the terminal node and requests the on-demand system information from the base station;

[0009] The relay node sends the on-demand system information sent by the base station to the corresponding terminal node.

[0010] A method for sending system information, comprising:

[0011] The relay node sends the updated system information obtained from the base station to the end node in the connected state.

[0012] A method for sending system information, comprising:

[0013] The base station broadcasts the MSI to the relay node so that the relay node forwards the MSI to the served end node;

[0014] The base station obtains an on-demand system information request from the relay node, where the on-demand system information request carries the on-demand system information requirement obtained by the relay node from the end node;

[0015] The base station sends the on-demand system information to the corresponding end node through the relay node.

[0016] A method for sending system information, comprising:

[0017] The base station sends the updated system information to the end nodes in the connected state through the relay nodes.

[0018] A method for sending system information, comprising:

[0019] The end node obtains the MSI broadcast by the base station through the relay node;

[0020] The end node sends the on-demand system information requirement to the relay node so that the relay node requests the on-demand system information from the base station;

[0021] The end node obtains the on-demand system information sent by the base station through the relay node.

[0022] A method for sending system information, comprising:

[0023] The end node in the connected state obtains the updated system information sent by the base station through the relay node.

[0024] A relay node comprises: a first forwarding unit, a request unit and a second forwarding unit;

[0025] The first forwarding unit is used to obtain the MSI broadcast by the base station and forward the MSI to the served end node;

[0026] The requesting unit is configured to obtain the on-demand system information requirement of the end node and request the on-demand system information from the base station;

[0027] The second forwarding unit is configured to send the on-demand system information sent by the base station to a corresponding end node.

[0028] A relay node comprises: a third forwarding unit;

[0029] The third forwarding unit is used to send the updated system information obtained from the base station to the end node in the connected state.

[0030] A base station comprises: a first processing unit and a second processing unit;

[0031] The first processing unit is configured to broadcast the MSI to the relay node so that the relay node forwards the MSI to the served end node;

[0032] The second processing unit is used to obtain an on-demand system information request from the relay node, wherein the on-demand system information request carries the on-demand system information requirement obtained by the relay node from the end node; and send the on-demand system information to the corresponding end node through the relay node.

[0033] A base station comprises: a third processing unit;

[0034] The third processing unit is used to send the updated system information to the end node in the connected state through the relay node.

[0035] An end node comprises: a first acquisition unit, a sending unit and a second acquisition unit;

[0036] The first acquisition unit is used to acquire the MSI broadcasted by the base station through the relay node;

[0037] The sending unit is configured to send an on-demand system information requirement to the relay node, so that the relay node requests the on-demand system information from the base station;

[0038] The second acquisition unit is configured to acquire, through the relay node, the on-demand system information sent by the base station.

[0039] An end node includes: a third acquisition unit;

[0040] The third acquisition unit is used to acquire the updated system information sent by the base station through the relay node when the end node is in a connected state.

[0041] A computer device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method when executing the program.

[0042] A computer-readable storage medium stores a computer program, which implements the above method when executed by a processor.

[0043] Based on the above introduction, it can be seen that by adopting the scheme described in the present invention, the relay node can obtain the MSI broadcast by the base station, forward the MSI to the end node it serves, and obtain the on-demand system information requirements of the end node, request the on-demand system information required by the end node from the base station, and then send the on-demand system information sent by the base station to the corresponding end node. In addition, the relay node can also send the updated system information sent by the base station to the end node, etc., thereby solving the problem of sending system information in the relay scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1This is a flow chart of the first embodiment of the method for sending system information according to the present invention.

[0045] Figure 2 This is a flow chart of a second embodiment of the method for sending system information according to the present invention.

[0046] Figure 3 This is a flow chart of a third embodiment of the method for sending system information according to the present invention.

[0047] Figure 4 This is a schematic diagram of the interaction method between the end node, relay node and gNB described in the present invention.

[0048] Figure 5 It is a schematic diagram of the composition structure of the first embodiment of the relay node of the present invention.

[0049] Figure 6 It is a schematic diagram of the composition structure of the second embodiment of the relay node of the present invention.

[0050] Figure 7 It is a schematic diagram of the composition structure of the first embodiment of the base station of the present invention.

[0051] Figure 8 It is a schematic diagram of the composition structure of the second embodiment of the base station of the present invention.

[0052] Fig. 9 This is a schematic diagram of the composition structure of the first embodiment of the terminal node described in the present invention.

[0053] Fig.10 This is a schematic diagram of the structure of the second embodiment of the terminal node of the present invention.

[0054] Fig.11 A block diagram of an exemplary computer system / server 12 suitable for use in implementing embodiments of the present invention is shown. DETAILED DESCRIPTION

[0055] In response to the problems existing in the prior art, the present invention proposes a system information sending method suitable for a relay scenario, which mainly involves the interaction between a base station (gNB), a relay node and an end node.

[0056] In order to make the technical solution of the present invention clearer and more understandable, the solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0057] Obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0058] Figure 1 FIG. 1 is a flow chart of the first embodiment of the method for sending system information according to the present invention. Figure 1 As shown, the following specific implementation methods are included.

[0059] In 101, the relay node obtains the MSI broadcast by the gNB and forwards the MSI to the served end node.

[0060] In the relay scenario, after the MSI broadcast by the gNB is received by the relay node, if the relay node supports the relay function, including but not limited to the synchronization source function, the relay node will forward the MSI, that is, forward the MSI to the end node it serves.

[0061] The MSI may further carry OSI scheduling information, and accordingly, the end node obtains the OSI scheduling information.

[0062] In 102, the relay node obtains the on-demand system information requirement of the end node and requests the on-demand system information from the gNB.

[0063] For the end node in the non-connected state, after obtaining the MSI and OSI scheduling information forwarded by the relay node, it can determine whether it needs to request other required system information based on the system information broadcast by the current cell, that is, whether there is an on-demand system information requirement. The non-connected state may include the idle state and the inactive state.

[0064] If there is an on-demand system information requirement, the end node may interact with the relay node so that the relay node learns the on-demand system information requirement of the end node. The interaction may be performed through a non-cellular or cellular link.

[0065] The relay node can summarize the on-demand system information requirements of each end node and make a unified request to the gNB based on the summary results.

[0066] For example, the relay node obtains the on-demand system information requirements of two end nodes, end node a and end node b. The on-demand system information required by end node a is on-demand system information 1 and on-demand system information 2, and the on-demand system information required by end node b is on-demand system information 2 and on-demand system information 3. Then the relay node needs to request on-demand system information 1, on-demand system information 2 and on-demand system information 3 from the gNB.

[0067] The manner in which the relay node requests the on-demand system information from the gNB may include:

[0068] 1) The relay node requests on-demand system information from the gNB through random access;

[0069] 2) The relay node requests on-demand system information from the gNB via dedicated radio resource control (RRC) signaling.

[0070] The relay node may choose the above method 1) or 2) to request on-demand system information from the gNB.

[0071] In 103, the relay node sends the on-demand system information sent by the gNB to the corresponding end node.

[0072] The gNB can send the on-demand system information required by the end node to the corresponding end node through the relay node based on the request of the relay node.

[0073] Specifically, the gNB may send the on-demand system information to the relay node via the RRC connection between the gNB and the relay node, and the relay node may then send the on-demand system information to the corresponding end node via the connection between the gNB and the end node.

[0074] Alternatively, the gNB broadcasts the on-demand system information, and then the relay node transmits the on-demand system information to the corresponding end node through transparent transmission by means of RRC dedicated signaling.

[0075] The gNB can determine the sending method of the on-demand system information according to a predetermined criterion. For example, if the current remaining rate of the physical broadcast channel (PBCH) resources is lower than the remaining rate of the physical downlink shared channel (PDSCH) resources, or the on-demand system information required by the end node is only required by the end node served by a certain relay node, then the former sending method can be used, that is, the on-demand system information is sent to the relay node through the RRC connection between the relay node, and then the relay node sends the on-demand system information to the corresponding end node through the connection between the relay node and the end node. For another example, if the on-demand system information required by the end node is required by the end node served by multiple relay nodes, or the current remaining rate of the PBCH resources is greater than a predetermined threshold, then the latter sending method can be used, that is, the gNB broadcasts the on-demand system information, and then the relay node transmits the on-demand system information to the corresponding end node through transparent transmission in the form of RRC dedicated signaling. The above criteria are only for example purposes and are not intended to limit the technical solutions of the present invention.

[0076] Accordingly, the manner in which the relay node sends the on-demand system information sent by the gNB to the corresponding end node may include:

[0077] 1) The relay node obtains the on-demand system information sent by the gNB through the RRC connection between the relay node and the gNB, and sends the on-demand system information to the corresponding end node through the connection between the relay node and the end node;

[0078] 2) The relay node transmits the on-demand system information broadcast by the gNB to the corresponding end node through transparent transmission of the relay node in the form of RRC dedicated signaling.

[0079] In the above embodiment, the situation when the end node is in a non-connected state is mainly described. If the end node is in a connected state, the relay node can send the updated system information obtained from the gNB to the end node in the connected state.

[0080] The following three implementation methods are available:

[0081] 1) The relay node transparently transmits the system information sent by the gNB to the end node through the RRC connection between the gNB and the end node to the end node;

[0082] 2) The relay node obtains the system information sent by the gNB through the RRC connection between the relay node and the end node, and sends the system information to the end node through the connection between the relay node and the end node;

[0083] 3) The relay node relays the paging message sent by the gNB to the end node, and relays the system information broadcast by the gNB to the end node, so that the end node reads the corresponding system information block from the system information according to the paging message.

[0084] For method 3), the paging mechanism needs to be enhanced to relay the paging message of the gNB to the end node, and also relay the system information to the end node. This method requires that the configuration of the paging occasion and discontinuous reception cycle (DRX cycle) of the end node is not affected by the relay and the delay introduced by it.

[0085] Figure 2 FIG. 1 is a flow chart of the second embodiment of the method for sending system information according to the present invention. Figure 2 As shown, the following specific implementation methods are included.

[0086] In 201, the gNB broadcasts the MSI to the relay node so that the relay node forwards the MSI to the served end node.

[0087] In the relay scenario, after the MSI broadcast by the gNB is received by the relay node, the relay node will forward the MSI, that is, forward the MSI to the end node it serves.

[0088] In 202, the gNB obtains an on-demand system information request from the relay node, where the on-demand system information request carries the on-demand system information requirement obtained by the relay node from the end node.

[0089] The relay node can aggregate the on-demand system information requirements of the served end nodes in the non-connected state and make unified requests to the gNB, that is, send an on-demand system information request to the gNB.

[0090] Specifically, the manner in which the gNB obtains the on-demand system information request from the relay node may include:

[0091] 1) The gNB obtains the on-demand system information request sent by the relay node through random access;

[0092] 2) The gNB obtains the on-demand system information request sent by the relay node via RRC dedicated signaling.

[0093] Based on the obtained on-demand system information request, the gNB can know what kind of on-demand system information the relay node has requested.

[0094] In 203, the gNB sends the on-demand system information to the corresponding end node through the relay node.

[0095] The manner in which the gNB sends the on-demand system information to the corresponding end node through the relay node may include:

[0096] 1) The gNB sends the on-demand system information to the relay node through the RRC connection between the gNB and the relay node, so that the relay node sends the on-demand system information to the corresponding end node through the connection between the gNB and the end node;

[0097] 2) The gNB broadcasts the on-demand system information so that the relay node can transmit the on-demand system information to the corresponding end node through transparent transmission by means of RRC dedicated signaling.

[0098] The gNB can determine the method for sending the on-demand system information according to predetermined criteria. For example, if the current PBCH resource remaining rate is lower than the PDSCH resource remaining rate, or the on-demand system information required by the end node is only required by the end node served by a certain relay node, then the former sending method can be used. If the on-demand system information required by the end node is required by the end node served by multiple relay nodes, or the current PBCH resource remaining rate is greater than a predetermined threshold, then the latter sending method can be used. The above criteria are for illustration only and are not intended to limit the technical solutions of the present invention.

[0099] In addition, the gNB can also send the updated system information to the end nodes in the connected state through the relay node.

[0100] Specific implementation methods may include:

[0101] 1) The gNB sends system information to the end node through the RRC connection between the gNB and the end node, and the relay node transparently transmits the system information;

[0102] 2) The gNB sends the system information to the relay node through the RRC connection between the gNB and the relay node, so that the relay node sends the system information to the end node through the connection between the gNB and the end node;

[0103] 3) The gNB relays the paging message to the end node through the relay node, and relays the broadcast system information to the end node through the relay node, so that the end node reads the corresponding system information block from the system information according to the paging message.

[0104] For method 3), the paging mechanism needs to be enhanced to relay the paging message of the gNB to the end node, and also relay the system information to the end node. This method requires that the configuration of the paging occasion and DRX cycle of the end node is not affected by the relay and the delay introduced by it.

[0105] Figure 3 FIG. 1 is a flow chart of the third embodiment of the method for sending system information according to the present invention. Figure 3 As shown, the following specific implementation methods are included.

[0106] In 301, the end node obtains the MSI broadcast by the gNB through the relay node.

[0107] In the relay scenario, after the MSI broadcast by the gNB is received by the relay node, the relay node will forward the MSI, that is, forward the MSI to the end node it serves.

[0108] In 302, the end node sends an on-demand system information request to the relay node so that the relay node requests the on-demand system information from the gNB.

[0109] When the end node is in a non-connected state and has an on-demand system information requirement, the on-demand system information requirement can be sent to the relay node. The non-connected state may include an idle state and an inactive state.

[0110] For an end node in a non-connected state, after obtaining the information forwarded by the relay node, it can determine whether it needs to request other required system information based on the system information broadcasted by the current cell, that is, whether there is an on-demand system information requirement.

[0111] If there is an on-demand system information requirement, the end node may interact with the relay node to send the on-demand system information requirement to the relay node, so that the relay node learns the on-demand system information requirement of the end node.

[0112] The relay node can summarize the on-demand system information requirements of each end node and make a unified request to the gNB based on the summary results.

[0113] In 303, the end node obtains the on-demand system information sent by the gNB through the relay node.

[0114] The method in which the end node obtains the on-demand system information sent by the gNB through the relay node may include:

[0115] 1) The end node obtains the on-demand system information sent by the relay node through the connection between the end node and the relay node. The on-demand system information is sent to the relay node by the gNB through the RRC connection between the gNB and the relay node;

[0116] 2) The end node obtains the on-demand system information broadcast by the gNB, and the relay node transmits the on-demand system information broadcast by the gNB to the end node through transparent transmission of the relay node in the form of RRC dedicated signaling.

[0117] In addition, for the end nodes in the connected state, they can also obtain the updated system information sent by the gNB through the relay node.

[0118] Specific implementation methods may include:

[0119] 1) The end node obtains the system information sent by the gNB through the RRC connection between the end node and the gNB, and the relay node transparently transmits the system information;

[0120] 2) The end node obtains the system information sent by the relay node through the connection between the end node and the relay node. The system information is sent to the relay node by the gNB through the RRC connection between the gNB and the relay node.

[0121] 3) The end node obtains the paging message sent by the gNB through the relay of the relay node, and obtains the system information broadcast by the gNB through the relay of the relay node, and reads the corresponding system information block from the system information according to the paging message.

[0122] For method 3), the paging mechanism needs to be enhanced to relay the paging message of the gNB to the end node, and also relay the system information to the end node. This method requires that the configuration of the paging occasion and DRX cycle of the end node is not affected by the relay and the delay introduced by it.

[0123] Based on the above introduction, Figure 4 This is a schematic diagram of the interaction method between the end node, relay node and gNB described in the present invention.

[0124] like Figure 4 As shown, it is assumed that the relay node serves two end nodes in total, and both end nodes are in idle state.

[0125] The relay node receives the MSI broadcast by the gNB and can transparently forward it, transmitting the MSI to the end node through the connection with the end node.

[0126] The end node determines whether it has an on-demand system information requirement, and if so, sends the on-demand system information requirement to the relay node.

[0127] The relay node aggregates the on-demand system information requirements of each end node, and sends an on-demand system information request to the gNB based on the aggregated results.

[0128] The gNB sends the requested on-demand system information to the end node through the relay node.

[0129] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions in other embodiments.

[0130] In summary, by adopting the schemes described in the above method embodiments, the relay node can obtain the MSI broadcast by the base station, forward the MSI to the end node it serves, and obtain the on-demand system information requirements of the end node, request the on-demand system information required by the end node from the base station, and then send the on-demand system information sent by the base station to the corresponding end node. In addition, the relay node can also send the updated system information sent by the base station to the end node, etc., thereby solving the problem of sending system information in the relay scenario.

[0131] The above is an introduction to a method embodiment. The following is a further explanation of the solution of the present invention through an apparatus embodiment.

[0132] Figure 5 FIG. 1 is a schematic diagram of the structure of the first embodiment of the relay node of the present invention. Figure 5 As shown, it includes: a first forwarding unit 501, a requesting unit 502 and a second forwarding unit 503.

[0133] The first forwarding unit 501 is configured to obtain the MSI broadcasted by the base station, and forward the MSI to the served end node.

[0134] The requesting unit 502 is configured to obtain the on-demand system information requirement of the terminal node and request the on-demand system information from the base station.

[0135] The second forwarding unit 503 is configured to send the on-demand system information sent by the base station to the corresponding end node.

[0136] The request unit 502 may obtain the on-demand system information requirement of the end node in the unconnected state.

[0137] In addition, the requesting unit 502 may request the base station for the on-demand system information by random access, or request the base station for the on-demand system information by RRC dedicated signaling.

[0138] The second forwarding unit 503 may obtain the on-demand system information sent by the base station through the RRC connection between the base station and the relay node, and send the on-demand system information to the corresponding end node through the connection between the relay node and the end node.

[0139] Alternatively, the second forwarding unit 503 may transmit the on-demand system information broadcast by the base station to the corresponding end node via transparent transmission of the relay node in the form of RRC dedicated signaling.

[0140] Figure 6 FIG. 2 is a schematic diagram of the structure of the relay node according to the second embodiment of the present invention. Figure 6 As shown, it includes: a third forwarding unit 601.

[0141] The third forwarding unit 601 is configured to send the updated system information obtained from the base station to the end node in the connected state.

[0142] Specifically, the third forwarding unit 601 may transparently transmit to the end node the system information that the base station sends to the end node through the RRC connection between the base station and the end node.

[0143] Alternatively, the third forwarding unit 601 may obtain the system information sent by the base station through the RRC connection between the base station and the relay node, and send the system information to the end node through the connection between the relay node and the end node.

[0144] Alternatively, the third forwarding unit 601 may relay the paging message sent by the base station to the end node, and relay the system information broadcast by the base station to the end node, so that the end node reads the corresponding system information block from the system information according to the paging message.

[0145] In practical applications, the relay node can include Figure 5 and Figure 6 The components shown in .

[0146] Figure 7 FIG. 1 is a schematic diagram of the structure of the first embodiment of the base station of the present invention. Figure 7 As shown, it includes: a first processing unit 701 and a second processing unit 702.

[0147] The first processing unit 701 is configured to broadcast the MSI to the relay node, so that the relay node forwards the MSI to the served end node.

[0148] The second processing unit 702 is configured to obtain an on-demand system information request from a relay node, the on-demand system information request carrying the on-demand system information requirement obtained by the relay node from the end node; and send the on-demand system information to the corresponding end node via the relay node.

[0149] Specifically, the second processing unit 702 may obtain an on-demand system information request sent by the relay node through a random access manner, or obtain an on-demand system information request sent by the relay node through an RRC dedicated signaling manner.

[0150] In addition, the second processing unit 702 may send the on-demand system information to the relay node through the RRC connection between the relay node, so that the relay node sends the on-demand system information to the corresponding end node through the connection between the relay node and the end node.

[0151] Alternatively, the second processing unit 702 may broadcast the on-demand system information so that the relay node transmits the on-demand system information to the corresponding end node through transparent transmission in a manner of RRC dedicated signaling.

[0152] The second processing unit 702 may determine a method for delivering the on-demand system information according to a predetermined criterion.

[0153] Figure 8 FIG. 2 is a schematic diagram of the structure of the second embodiment of the base station of the present invention. Figure 8 As shown, it includes: a third processing unit 801.

[0154] The third processing unit 801 is configured to send updated system information to an end node in a connected state through a relay node.

[0155] Specifically, the third processing unit 801 may send the system information to the end node through the RRC connection between the end node and the relay node transparently transmits the system information.

[0156] Alternatively, the third processing unit 801 may send the system information to the relay node via the RRC connection between the relay node and the relay node, so that the relay node sends the system information to the end node via the connection between the relay node and the end node.

[0157] Alternatively, the third processing unit 801 may relay the paging message to the end node via the relay node, and relay the broadcasted system information to the end node via the relay node, so that the end node reads the corresponding system information block from the system information according to the paging message.

[0158] In practical applications, the base station can include Figure 7 and Figure 8 The components shown in .

[0159] Fig. 9FIG. 1 is a schematic diagram of the structure of the first embodiment of the terminal node of the present invention. Fig. 9 As shown, it includes: a first acquiring unit 901, a sending unit 902 and a second acquiring unit 903.

[0160] The first acquiring unit 901 is configured to acquire the MSI broadcasted by the base station through a relay node.

[0161] The sending unit 902 is configured to send the on-demand system information requirement to the relay node, so that the relay node requests the on-demand system information from the base station.

[0162] The second acquiring unit 903 is configured to acquire the on-demand system information sent by the base station through the relay node.

[0163] When the end node is in a non-connected state and has an on-demand system information requirement, the sending unit 902 sends the on-demand system information requirement to the relay node.

[0164] The second acquisition unit 903 may acquire the on-demand system information sent by the relay node through the connection between the relay node and the terminal node. The on-demand system information is sent by the base station to the relay node through the RRC connection between the base station and the relay node.

[0165] Alternatively, the second acquisition unit 903 may acquire the on-demand system information broadcast by the base station, and the relay node transmits the on-demand system information broadcast by the base station to the end node in the form of RRC dedicated signaling through transparent transmission of the relay node.

[0166] Fig.10 FIG. 2 is a schematic diagram of the structure of the second embodiment of the terminal node of the present invention. Fig.10 As shown, it includes: a third acquisition unit 1001.

[0167] The third acquisition unit 1001 is used to acquire updated system information sent by the base station through the relay node when the end node is in a connected state.

[0168] Specifically, the third acquisition unit 1001 may acquire the system information sent by the base station through an RRC connection with the base station, and the relay node transparently transmits the system information.

[0169] Alternatively, the third acquisition unit 1001 may acquire the system information sent by the relay node through the connection between the relay node and the terminal node, where the system information is sent by the base station to the relay node through the RRC connection between the base station and the relay node.

[0170] Alternatively, the third acquisition unit 1001 may acquire the paging message sent by the base station through relaying of the relay node, and acquire the system information broadcast by the base station through relaying of the relay node, and read the corresponding system information block from the system information according to the paging message.

[0171] In practical applications, the terminal node can include Fig. 9 and Fig.10 The components shown in .

[0172] For the specific working processes of the above-mentioned device embodiments, please refer to the corresponding descriptions in the above-mentioned method embodiments, which will not be repeated here.

[0173] By adopting the scheme described in the above-mentioned device embodiments, the relay node can obtain the MSI broadcast by the base station, forward the MSI to the end node it serves, and obtain the on-demand system information requirements of the end node, request the on-demand system information required by the end node from the base station, and then send the on-demand system information sent by the base station to the corresponding end node. In addition, the relay node can also send the updated system information sent by the base station to the end node, etc., thereby solving the problem of sending system information in the relay scenario.

[0174] Fig.11 A block diagram of an exemplary computer system / server 12 suitable for use in implementing embodiments of the present invention is shown. Fig.11 The computer system / server 12 shown is merely an example and should not bring any limitation to the functionality and scope of use of embodiments of the present invention.

[0175] like Fig.11 As shown, computer system / server 12 is in the form of a general purpose computing device. Components of computer system / server 12 may include, but are not limited to: one or more processors (processing units) 16, memory 28, and bus 18 connecting different system components (including memory 28 and processor 16).

[0176] Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor or a local bus using any of a variety of bus architectures. By way of example, these architectures include, but are not limited to, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MAC) bus, an Enhanced ISA bus, a Video Electronics Standards Association (VESA) local bus, and a Peripheral Component Interconnect (PCI) bus.

[0177] Computer system / server 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by computer system / server 12, including volatile and nonvolatile media, removable and non-removable media.

[0178] The memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory 32. The computer system / server 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, the storage system 34 may be used to read and write non-removable, non-volatile magnetic media ( Fig.11 not shown, usually called a "hard drive"). Although Fig.11 Not shown in the figure, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing to a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to the bus 18 via one or more data medium interfaces. The memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the various embodiments of the present invention.

[0179] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in the memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. The program modules 42 generally perform the functions and / or methods of the embodiments described herein.

[0180] The computer system / server 12 may also communicate with one or more external devices 14 (e.g., keyboards, pointing devices, displays 24, etc.), one or more devices that enable a user to interact with the computer system / server 12, and / or any device that enables the computer system / server 12 to communicate with one or more other computing devices (e.g., network cards, modems, etc.). Such communication may be performed through input / output (I / O) interfaces 22. Furthermore, the computer system / server 12 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) through a network adapter 20. Fig.11 As shown, the network adapter 20 communicates with other modules of the computer system / server 12 via the bus 18. It should be understood that although not shown in the figure, other hardware and / or software modules can be used in conjunction with the computer system / server 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0181] The processor 16 executes various functional applications and data processing by running the programs stored in the memory 28, such as implementing Figure 1 , 2 Or the method in the embodiment shown in 3.

[0182] The present invention also discloses a computer-readable storage medium on which a computer program is stored, which, when executed by a processor, will implement the following Figure 1 , 2 Or the method in the embodiment shown in 3.

[0183] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or device.

[0184] Computer-readable signal media may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0185] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0186] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0187] In the several embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation.

[0188] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0189] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0190] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform some steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, ROM, RAM, disk or optical disk and other media that can store program codes.

[0191] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for sending system information, characterized in that: include: The relay node obtains the minimized system information MSI broadcast by the base station, and forwards the MSI to the served end node; The relay node obtains the on-demand system information requirement of the terminal node, and requests the on-demand system information from the base station; The relay node sends the on-demand system information sent by the base station to the corresponding terminal node, The MSI further carries other system information OSI scheduling information, and the terminal node obtains the OSI scheduling information. The step of the relay node sending the on-demand system information sent by the base station to the corresponding terminal node includes: When the current physical broadcast channel (PBCH) resource remaining rate is greater than a predetermined threshold, the relay node transmits the on-demand system information broadcast by the base station to the corresponding end node via transparent transmission of the relay node in the form of radio resource control RRC dedicated signaling.

2. The method according to claim 1, characterized in that The relay node acquires the on-demand system information requirements of the terminal node including: The relay node obtains the on-demand system information requirement of the end node in the unconnected state.

3. The method according to claim 1, characterized in that: The requesting the base station for the on-demand system information comprises: The relay node requests the on-demand system information from the base station in a random access manner; Alternatively, the relay node requests the on-demand system information from the base station through RRC dedicated signaling.

4. A method for sending system information, characterized in that: include: The base station broadcasts the minimized system information MSI to the relay node, so that the relay node forwards the MSI to the served end node; The base station obtains an on-demand system information request from the relay node, where the on-demand system information request carries the on-demand system information requirement obtained by the relay node from the end node; The base station sends the on-demand system information to the corresponding terminal node through the relay node, The MSI further carries other system information OSI scheduling information, and the terminal node obtains the OSI scheduling information. The base station sending the on-demand system information to the corresponding end node through the relay node includes: When the current physical broadcast channel (PBCH) resource remaining rate is greater than a predetermined threshold, the base station broadcasts the on-demand system information so that the relay node transmits the on-demand system information to the corresponding end node through transparent transmission in the form of wireless resource control RRC dedicated signaling.

5. The method according to claim 4, characterized in that The base station obtaining the on-demand system information request from the relay node includes: The base station obtains the on-demand system information request sent by the relay node in a random access manner; Alternatively, the base station obtains the on-demand system information request sent by the relay node through RRC dedicated signaling.

6. A method for sending system information, characterized in that: include: The end node obtains the minimized system information MSI broadcast by the base station through the relay node; The end node sends the on-demand system information requirement to the relay node so that the relay node requests the on-demand system information from the base station; The end node obtains the on-demand system information sent by the base station through the relay node, The MSI further carries other system information OSI scheduling information, and the terminal node obtains the OSI scheduling information. The end node obtaining the on-demand system information sent by the base station through the relay node includes: When the current physical broadcast channel (PBCH) resource remaining rate is greater than a predetermined threshold, the end node obtains the on-demand system information broadcast by the base station, and the relay node transmits the on-demand system information broadcast by the base station to the end node in the form of wireless resource control RRC dedicated signaling through transparent transmission of the relay node.

7. The method according to claim 6, characterized in that The end node sending the on-demand system information requirement to the relay node includes: When the end node is in a non-connected state and has an on-demand system information requirement, the on-demand system information requirement is sent to the relay node.

8. A relay node, characterized in that: include: A first forwarding unit, a request unit, and a second forwarding unit; The first forwarding unit is used to obtain the minimized system information MSI broadcast by the base station, and forward the MSI to the served end node; The requesting unit is configured to obtain the on-demand system information requirement of the end node and request the on-demand system information from the base station; The second forwarding unit is configured to send the on-demand system information sent by the base station to a corresponding end node, The MSI further carries other system information OSI scheduling information, and the terminal node obtains the OSI scheduling information. Among them, when the current physical broadcast channel (PBCH) resource remaining rate is greater than a predetermined threshold, the second forwarding unit transmits the on-demand system information broadcast by the base station to the corresponding end node through transparent transmission of the relay node in the form of wireless resource control RRC dedicated signaling.

9. The relay node according to claim 8, characterized in that: The requesting unit obtains the on-demand system information requirement of the end node in the unconnected state.

10. The relay node according to claim 8, characterized in that: The requesting unit requests the on-demand system information from the base station in a random access manner; Alternatively, the requesting unit requests the on-demand system information from the base station through an RRC dedicated signaling method.

11. A base station, characterized in that: include: A first processing unit and a second processing unit; The first processing unit is configured to broadcast minimized system information (MSI) to a relay node, so that the relay node forwards the MSI to a served end node; The second processing unit is configured to obtain an on-demand system information request from the relay node, wherein the on-demand system information request carries an on-demand system information requirement obtained by the relay node from the end node; and send the on-demand system information to the corresponding end node through the relay node. The MSI further carries other system information OSI scheduling information, and the terminal node obtains the OSI scheduling information. Among them, when the current physical broadcast channel (PBCH) resource remaining rate is greater than a predetermined threshold, the second processing unit broadcasts the on-demand system information so that the relay node transmits the on-demand system information to the corresponding end node through transparent transmission in the form of wireless resource control RRC dedicated signaling.

12. The base station according to claim 11, characterized in that The second processing unit obtains the on-demand system information request sent by the relay node in a random access manner; Alternatively, the second processing unit obtains the on-demand system information request sent by the relay node via RRC dedicated signaling.

13. An end node, characterized in that: include: A first acquiring unit, a sending unit, and a second acquiring unit; The first acquisition unit is configured to acquire the minimized system information MSI broadcasted by the base station through the relay node; The sending unit is configured to send an on-demand system information requirement to the relay node, so that the relay node requests the on-demand system information from the base station; The second acquisition unit is configured to acquire the on-demand system information sent by the base station through the relay node, The MSI further carries other system information OSI scheduling information, and the terminal node obtains the OSI scheduling information. Among them, when the current physical broadcast channel (PBCH) resource remaining rate is greater than a predetermined threshold, the second acquisition unit obtains the on-demand system information broadcast by the base station, and the relay node transmits the on-demand system information broadcast by the base station to the end node through transparent transmission of the relay node in the form of wireless resource control RRC dedicated signaling.

14. The end node according to claim 13, characterized in that: When the end node is in a non-connected state and has an on-demand system information requirement, the sending unit sends the on-demand system information requirement to the relay node.

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