CN111434063B

CN111434063B - Information transmission method, equipment and computer storage medium

Info

Publication number: CN111434063B
Application number: CN201780097264.5A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2023-03-07
Anticipated expiration: 2037-12-27
Also published as: WO2019127148A1; CN111434063A

Abstract

The embodiment of the invention provides a method, equipment and a computer storage medium for information transmission; the method comprises the following steps: in a preset first time period, after LBT detection fails to be carried out on an unauthorized frequency spectrum after listening first and then speaking, carrying out LBT detection on the unauthorized frequency spectrum according to set detection times, and when an LBT detection result is successful, sending a first Radio Resource Control (RRC) signaling to be sent on the unauthorized frequency spectrum; after the first RRC signaling is sent, timing according to a set second time period; and when the RRC response signaling aiming at the first RRC signaling is received in the second time period, confirming that the transmission is not overtime. Therefore, the method avoids that the larger delay is mistaken as an error to trigger an error processing flow, avoids the repeated occupation of network resources, improves the robustness of signaling transmission under the condition of unauthorized frequency spectrum, and improves the efficiency of information transmission.

Description

Information transmission method, equipment and computer storage medium

Technical Field

The embodiments of the present invention relate to the field of wireless communication technologies, and in particular, to a method and an apparatus for information transmission, and a computer storage medium.

Background

Unlicensed spectrum is a spectrum divided by countries and regions that can be used for radio device communication, and this spectrum can be generally considered as a shared spectrum, i.e., a spectrum can be used by communication devices in different communication systems without applying a proprietary spectrum license as long as the communication devices meet the regulatory requirements set on the spectrum by the country or region.

In a Long Term Evolution (LTE) system-based Licensed-Assisted Access (LAA-LTE) system, user Equipment (UE) simultaneously operates on multiple carriers (frequency bands) in a Carrier Aggregation (CA) manner. Wherein, a Primary Carrier (Primary Carrier) of the LTE UE, corresponding to a Primary Cell (Pcell, primary Cell) in the CA technology, operates on the licensed spectrum; a Secondary Carrier (Secondary Carrier) of an LTE UE, corresponding to a Secondary Cell (Scell, secondary Cell) in CA technology, may operate in a licensed spectrum or an unlicensed spectrum.

At present, when information is transmitted by using an unlicensed spectrum, a sending end needs to perform a Listen Before Talk (LBT) process, and the sending end can send the information only after the LBT process is successful. Therefore, the LBT mechanism increases the delay in the information transmission process, which causes the receiving end to trigger an error processing procedure due to a long delay, causes repeated occupation of network resources, and affects the effect of information transmission.

Disclosure of Invention

The embodiment of the invention provides a method, equipment and a computer storage medium for information transmission; repeated occupation of network resources is avoided, and the efficiency of information transmission is improved.

The technical scheme of the embodiment of the invention can be realized as follows:

in a first aspect, an embodiment of the present invention provides a method for information transmission, where the method is applied to a sending end device, and the method includes:

in a preset first time period, after the first Listen Before Talk (LBT) detection fails on an unauthorized frequency spectrum, carrying out the LBT detection on the unauthorized frequency spectrum according to a set detection number, and when the LBT detection result is successful, sending a first Radio Resource Control (RRC) signaling to be sent on the unauthorized frequency spectrum;

after the first RRC signaling is sent, timing according to a set second time period;

and when the RRC response signaling aiming at the first RRC signaling is received in the second time period, confirming that the transmission is not overtime.

In a second aspect, an embodiment of the present invention provides an information transmission method, where the method is applied to a receiving end device, and the method includes:

after receiving a first Radio Resource Control (RRC) signaling, performing Listen Before Talk (LBT) detection on an unlicensed spectrum;

and when the LBT detection result is successful, sending RRC response signaling aiming at the first RRC signaling on the unlicensed spectrum.

In a third aspect, an embodiment of the present invention provides a network device, including a first detection portion, a first transmission portion, a timing portion, and an acknowledgement portion; wherein the content of the first and second substances,

the first detection part is configured to perform LBT detection on an unlicensed frequency spectrum according to a set detection number after the first listen before talk LBT detection fails on the unlicensed frequency spectrum within a preset first time period;

the first sending part is configured to send a first Radio Resource Control (RRC) signaling to be sent on the unlicensed spectrum when the detection result of the detection part LBT is successful;

the timing part is configured to time according to a set second time period after the sending part sends the first RRC signaling;

the confirming part is configured to confirm that the transmission is not timed out when the RRC response signaling for the first RRC signaling is received within the second time period.

In a fourth aspect, an embodiment of the present invention provides a network device, including: a receiving part, a second detecting part and a second sending part; wherein the content of the first and second substances,

the receiving part is configured to receive a first Radio Resource Control (RRC) signaling;

the second detection part is configured to perform Listen Before Talk (LBT) detection on the unlicensed spectrum after the receiving part receives the first RRC signaling;

the second sending part is configured to send an RRC response signaling for the first RRC signaling on the unlicensed spectrum when the LBT detection result is successful.

In a fifth aspect, an embodiment of the present invention provides a network device, including: a network interface, a memory, and a processor; wherein the content of the first and second substances,

the network interface is used for receiving and sending signals in the process of receiving and sending information with other external network elements;

the memory for storing a computer program operable on the first processor;

the processor is configured to, when executing the computer program, perform the steps of the method of the first aspect or the second aspect.

In a sixth aspect, an embodiment of the present invention provides a computer storage medium, where a data replication transmission program is stored, and the data replication transmission program, when executed by at least one processor, implements the steps of the method according to the first aspect or the second aspect.

The embodiment of the invention provides a method, equipment and a computer storage medium for information transmission; by prolonging the current timing period, the method avoids that a larger delay is mistaken as an error to trigger an error processing flow, avoids repeated occupation of network resources, improves the robustness of signaling transmission under the condition of unauthorized frequency spectrum, and improves the efficiency of information transmission.

Drawings

Fig. 1 is a block diagram of a wireless communication system according to an embodiment of the present invention;

fig. 2 is a block diagram of another wireless communication system according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating a method for transmitting information according to an embodiment of the present invention;

fig. 4 is a schematic flowchart of another information transmission method according to an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a network device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a specific hardware structure of a network device according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating another network device according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a specific hardware structure of another network device according to an embodiment of the present invention.

Detailed Description

So that the manner in which the features and technical contents of the embodiments of the present invention can be understood in detail, a detailed description of the embodiments of the present invention will be given below with reference to the accompanying drawings.

It should be noted that the technical solutions of the embodiments of the present invention may be applied to various communication systems, for example: global System for Mobile communications ("GSM") systems, code Division Multiple Access ("CDMA") systems, wideband Code Division Multiple Access ("WCDMA") systems, general Packet Radio Service ("GPRS"), universal Mobile telecommunications System ("UMTS"), long Term Evolution ("LTE") systems, and evolutions of LTE systems, such as the Advanced Long Term Evolution ("LTE-a") System, the New Radio (NR ") System, and the NR System, such as the NR (NR-to-unlicensed spectrum) System on unlicensed spectrum, or the next generation communication System.

In addition, the technical solution of the embodiment of the present invention may also be applied to Device-to-Device (D2D) Communication, machine-to-Machine (M2M) Communication, machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication.

Without loss of generality, referring to fig. 1, which illustrates an example of a wireless communication system 100 to which subsequent embodiments may be applied, the system 100 may include a base station 105, a communication device (also referred to as User Equipment (UE)) 115, and a core network 130. The base stations 105 may communicate with the communication devices 115 over communication links 125 under the control of a base station controller (not shown), which may be part of the core network 130 or base station 105 in various embodiments. The base stations 105 may communicate control information or user data with the core network 130 over backhaul links 132. In an embodiment, the base stations 105 may communicate with each other directly or indirectly through backhaul links 134, which backhaul links 134 may be wired or wireless communication links. The system 100 may support operation on multiple carriers (waveform signals of different frequencies). Multicarrier transmitters may transmit modulated signals simultaneously on multiple carriers. For example, each communication link 125 may be a multi-carrier signal modulated according to the various radio technologies described above. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

In fig. 1, the communication link 125 or backhaul link 132 may generally use a licensed or dedicated spectrum without other interfering devices. However, in many cases, it may be difficult or expensive to obtain licensed spectrum for wireless backhaul. In addition to licensed spectrum dedicated to a particular use or entity, many countries and regions have unlicensed spectrum available in various ways. Although the unlicensed spectrum may not be dedicated to a particular use or vendor, interference in the band may be mitigated by technical rules governing both hardware and the deployment method of wireless units using the band. The rules differ between bands and countries have different rules governing operating requirements and/or maximum transmission power in unlicensed spectrum.

The base station 105 may communicate wirelessly with the device 115 via one or more base station antennas. Each of the base station 105 sites may provide communication coverage for a respective geographic area 110. In some embodiments, the base station 105 may be referred to as a base station transceiver, a wireless base station, an access point, a wireless transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a network device in an NR network, such as a 5G base station (gNB), or a network device in a future evolved PLMN network, etc. . The coverage area 110 for a base station can be divided into sectors, which constitute only a portion of the coverage area (not shown). The system 100 may include different types of base stations 105 (e.g., macro, micro, or pico base stations). For different technologies, there may be overlapping coverage areas.

In this embodiment, the system 100 is preferably a New Radio (NR) system, an evolution system of the NR system, or preferably an LTE/LTE-a network. In the NR system or an evolution system of the NR system, a 5G base station (gNB) and a UE are generally used to describe the base station 105 and the device 115, respectively, in the system shown in fig. 1; in an LTE/LTE-a network, the terms evolved node B (eNB) and UE may be used generally to describe the base station 105 and device 115, respectively, in the system shown in fig. 1.

And in the system shown in fig. 1, different types of base stations 105 may provide coverage for various geographic areas. For example, each base station 105 may provide communication coverage for a macro cell, a small cell, or other type of cell. The term "cell" is a 3GPP term that can be used to describe a base station, a carrier associated with a base station, or a coverage area (e.g., sector, etc.) of a carrier or base station depending on the context. A macro cell typically covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions with the network provider. A small cell is a lower power base station that may operate in the same or different (e.g., licensed, unlicensed, etc.) frequency band as a macro cell. Small cells include pico cells, femto cells, and micro cells. A pico cell will typically cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions with the network provider. A femto cell will also typically cover a relatively small geographic area (e.g., a home) and may provide restricted access by UEs having an association with the femto cell (e.g., UEs in a Closed Subscriber Group (CSG), UEs for users in the home, etc.). The base station used for the macro cell may be referred to as a macro base station. A base station for a pico cell may be referred to as a pico base station. And, a base station for a femto cell may be referred to as a femto base station or a home base station. The base station 105 may support one or more (e.g., two, three, four, etc.) cells.

The core network 130 may communicate with the base stations 105 via a backhaul 132 (e.g., S1, etc.). Base stations 105 may also communicate with each other (e.g., directly or indirectly) via backhaul links 134 (e.g., X2, etc.) or via backhaul links 132 (e.g., through core network 130). The wireless communication system 100 may support synchronous operation or asynchronous operation. For synchronous operation, the base stations may have similar frame timing, and transmissions from different base stations may be approximately aligned in time. For asynchronous operation, the base stations may have different frame timings, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operations.

A communication network that may accommodate some of the various disclosed embodiments may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. The Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels. A Medium Access Control (MAC) layer may perform priority processing and multiplexing of logical channels into transport channels. The MAC layer may also use Hybrid ARQ (HARQ) to provide retransmissions at the MAC layer to improve link efficiency. In the Control plane, a Radio Resource Control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between the UE and the network for user plane data. At the Physical (PHY) layer, transport channels may be mapped to physical channels.

UEs 115 are dispersed throughout the wireless communication system 100, and each UE may be stationary or mobile. A UE115 may also be referred to by those skilled in the art as an access terminal, subscriber unit, subscriber station, mobile, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. The terminal device may be a Station (ST) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in a fifth-generation communication (5G) network or a terminal device in a Public Land Mobile Network (PLMN) network evolved in the future, and so on. In the embodiment of the present invention, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc..

The wireless communication system 100 shown in fig. 1 may support operation over multiple carriers, which may be referred to as Carrier Aggregation (CA) or multi-Carrier operation. The carriers may also be referred to as Component Carriers (CCs), layers, channels, etc. The terms "carrier," "CC," "cell," and "channel" may be used interchangeably herein. A carrier for downlink may be referred to as a downlink CC, and a carrier for uplink may be referred to as an uplink CC. A UE115 may be configured with multiple downlink CCs and one or more uplink CCs for carrier aggregation.

For the wireless communication system 100 shown in fig. 1, the UE115 is configured with a UE-specific primary carrier (e.g., a primary cell or PCell) or one or more secondary carriers (e.g., a secondary cell or SCell). The PCell may include a downlink primary CC (e.g., downlink PCC) and an uplink primary CC (e.g., uplink PCC). The SCell may include a downlink secondary CC (e.g., a downlink SCC) and, if configured, an uplink secondary CC (e.g., an uplink SCC). Control information including scheduling of an SCell may be performed on the SCell or on a different cell (e.g., PCell or SCell), which may be referred to as cross-carrier control signaling. The PCell may be identified by the UE115 (e.g., as the strongest available carrier, etc.) prior to establishing a connection with the base station 105. Once the UE115 establishes a connection with the base station 105 via the PCell, one or more scells may be configured via higher layer signaling (e.g., RRC, etc.). The configuration of the SCell may include transmitting all System Information (SI) for the SCell, e.g., through RRC signaling.

In some cases, both PCell and SCell are supported by the same base station 105. In other cases, the PCell may be supported by one base station 105, and one or more scells may be supported by the same base station 105 or different base stations 105. The techniques described herein may be applied to carrier aggregation schemes that utilize pcells and any number of scells supported by one or more base stations 105.

Fig. 2 illustrates an example of a wireless communication system 200 (in which UE 115-a is served by a carrier 225) in accordance with various embodiments. In one embodiment, the carrier 225-a may be one or more primary carriers (e.g., primary cell or PCell) and the other carriers (e.g., 225-b, 225-n, etc.) may be one or more secondary carriers (e.g., secondary cell or Scell). The PCell may include a primary downlink CC and an uplink primary CC. The SCell may include a secondary downlink CC and, if configured, a secondary uplink CC. In some cases, both the PCell 225-a and scells 225-b, 225-n are supported by the same base station 105-a. In other cases, the PCell 225-a may be supported by one base station 105, and one or more scells 225 may be supported by a different base station 105 (not shown). The techniques described herein may be applied to carrier aggregation schemes that utilize pcells and any number of scells supported by one or more base stations 105.

For the wireless communication system shown in fig. 1 or fig. 2, in the related art, the PCell is set to be implemented on a licensed spectrum; in the NR system, in order to improve the utilization rate of the spectrum, the PCell may also be implemented on an unlicensed spectrum. In order to avoid interference of unlicensed spectrum caused by multiple radio access technologies, the usage of unlicensed spectrum is currently regulated through a listen-before-talk LBT mechanism. When data needs to be sent through the unlicensed spectrum, it is first required to monitor that the unlicensed spectrum has no signal transmission, that is, when LBT succeeds, data can be sent on the unlicensed spectrum; otherwise, LBT fails and data transmission needs to be scheduled again.

After the PCell is implemented on the unlicensed spectrum, due to an LBT mechanism of the unlicensed spectrum, a delay in an existing RRC signaling transmission process is increased, so that a large delay is mistaken as an error to trigger an error processing procedure, thereby causing a reduction in robustness of signaling transmission under the unlicensed spectrum. In the RRC signaling transmission process, both the UE and the base station need to receive and respond to the corresponding RRC signaling, so that in the RRC signaling transmission process under the unlicensed spectrum, each time of signaling transmission, both the sending end and the receiving end need to consider the time delay caused by the LBT mechanism.

Based on this, the following examples are proposed.

Example one

Referring to fig. 3, a flow of a method for information transmission according to an embodiment of the present invention is shown, where the method is applied to a sending end device when performing RRC signaling transmission in an unlicensed spectrum, and the flow of the method may include:

s301: in a preset first time period, after primary LBT detection fails on an unauthorized frequency spectrum, LBT detection is carried out on the unauthorized frequency spectrum according to a set detection frequency, and when an LBT detection result is successful, a first RRC signaling to be sent is sent on the unauthorized frequency spectrum;

in this embodiment, the sending end device may refer to a device that performs RRC signaling transmission in an RRC signaling transmission process, and specifically may be a base station eNB or a gNB, or may be a UE. It should be noted that, in the first time period, after the first LBT detection on the unlicensed spectrum is failed, the sending end may try LBT detection for multiple times, and when the detection is successful, send the first RRC signaling to be sent. The robustness of RRC signaling transmission is improved by carrying out LBT detection for multiple times when RRC signaling is sent.

S302: after the first RRC signaling is sent, timing according to a set second time period;

it should be noted that, at present, a delay timing mechanism is provided for the transmission scheme of the RRC signaling, but since the RRC signaling is transmitted through the PCell at present, and in the LTE/LTE-a system supporting the CA technology, the PCell uses a high-reliability licensed spectrum, in the present delay timing mechanism, the timing period for characterizing the occurrence of the delay error is shorter, so when the PCell is implemented through the unlicensed spectrum, the second time period for characterizing the occurrence of the delay error should be longer than the current timing period, and by extending the current timing period, the larger delay is prevented from being mistaken as an error to trigger an error handling procedure, so that the robustness of the signaling transmission under the unlicensed spectrum is improved.

Specifically, if the timing period of the current delay timing mechanism is a standard timing period, the second time period is obtained by extending the standard timing period according to the network quality indicator of the unlicensed spectrum. In detail, in the LBT detection process for the unlicensed spectrum in step S301, the unlicensed spectrum may be measured, so that the network quality indicator of the unlicensed spectrum is obtained according to the measurement result, and as can be understood, the network quality indicator is used to represent the network quality of the unlicensed spectrum. Based on this, when the network quality index represents that the network quality of the unlicensed spectrum is poor, a longer time period needs to be prolonged for the standard timing period; when the network quality index represents that the network quality of the unlicensed spectrum is good, a short time period can be prolonged for the standard timing period. In specific implementation, different grades can be divided according to network quality indexes, the grades from low to high respectively indicate that the network quality of the unlicensed spectrum is good to bad, and then a corresponding extension time period is determined according to each network quality index grade, so that the corresponding grades of the extension time period are increased according to the grades from low to high of the network quality index grade, and a longer time period is extended according to a standard timing time period when the network quality of the unlicensed spectrum is poor; when the network quality of the unlicensed spectrum is good, a short period of time may be extended for the standard timing period.

S303: and when an RRC response signaling aiming at the first RRC signaling is received in the second time period, confirming that the transmission is not overtime.

It can be understood that, when the second time period is set, the LBT detection condition of the receiving end has been considered, and then the sending end receives the RRC response signaling for the first RRC signaling in the second time period, which indicates that the RRC signaling transmission is not overtime.

For the technical solution shown in fig. 3, when the RRC response signaling for the first RRC signaling is not received in the second time period, it indicates that the receiving end may delay the RRC response signaling due to failure of LBT detection, and therefore, the method may further include: and performing LBT detection again for the unlicensed spectrum, and sending second RRC signaling associated with the first RRC signaling. Preferably, when the second RRC signaling is sent, the sending may refer to S301, so that after the second RRC signaling is sent, the timing is continued according to the set second time period, and since the first RRC signaling and the second RRC signaling have an association, the second RRC signaling is a repeated sending of the first RRC signaling. Therefore, the delay timing for the first RRC signaling can be further increased, the situation that a larger delay is mistaken for an error to trigger an error processing flow is avoided, and the robustness of signaling transmission under the condition of an unauthorized spectrum is further improved.

It should be noted that, when the receiving end may cause the RRC response signaling to be delayed due to the LBT detection failure, the sending end may send the RRC signaling to the receiving end again, for example, a second RRC signaling, in order to enable the receiving end to know that the second RRC signaling is sent again for the first RRC signaling, specifically, the second RRC signaling may carry an association identifier for representing that the association relationship with the first RRC signaling exists. Specifically, the association representation may be a transmission identifier transit id and a repetition index added in the second RRC signaling, where the transmission identifier is used to represent that the second RRC signaling is repeatedly transmitted for the first RRC signaling, and the repetition index is used to represent the number of times the second RRC signaling is repeatedly transmitted for the first RRC signaling. Therefore, after the receiving end receives the second RRC signaling, whether the second RRC signaling is the RRC signaling which is repeatedly sent aiming at the first RRC signaling is confirmed; if so, it may be ignored and proceed to perform the LBT detection procedure to send RRC response signaling for the first RRC signaling.

Furthermore, when the second RRC signaling does not contain the transmission identification transmission id, the association indication in the second RRC signaling may contain only the repetition index. It can be understood that, in the RRC Reconfiguration process, the two steps are only included, in which the base station sends the RRC Reconfiguration signaling to the UE, and the UE responds to the base station that the RRC Reconfiguration Complete signaling after receiving the RRC Reconfiguration signaling.

It can be understood that, in the embodiment of the present invention, the implementation of the technical solution is described and illustrated by taking the RRC reconfiguration process as an example, and the technical solution of the embodiment of the present invention can be applied to other interaction processes related to RRC signaling, such as RRC connection establishment, RRC connection release, and RRC connection maintenance, according to the needs of a specific application scenario.

Example two

Based on the same inventive concept of the foregoing embodiment, referring to fig. 4, it shows a flow of a method for transmitting information according to an embodiment of the present invention, where the method may be applied to a receiving end device when performing RRC signaling transmission in an unlicensed spectrum, and in this embodiment, the receiving end device may refer to a device that receives RRC signaling in an RRC signaling transmission process, and specifically may be a base station eNB or a gNB, or may be a UE. The method flow can comprise the following steps:

s401: after receiving the first RRC signaling, carrying out LBT detection aiming at an unlicensed frequency spectrum;

s402: and when the LBT detection result is successful, sending RRC response signaling aiming at the first RRC signaling on the unlicensed spectrum.

Specifically, the receiving end needs to respond to the first RRC signaling after receiving the first RRC signaling; therefore, the receiving end and the transmitting end belong to relative concepts in the embodiment of the present invention, that is, the receiving end in the embodiment belongs to the transmitting end for the RRC response signaling. Therefore, for the RRC response signaling, for step S401, the receiving end may be implemented according to step S301 in the foregoing embodiment, which specifically includes: and in a preset first time period, after the first LBT detection on the unauthorized frequency spectrum fails, LBT detection is carried out on the unauthorized frequency spectrum according to the set detection times, and when the LBT detection result is successful, the RRC response signaling is sent on the unauthorized frequency spectrum.

It can be understood that, since the receiving end still needs to perform multiple LBT detections when responding to the first RRC signaling, when the receiving end does not send the RRC response signaling within the second time period in the foregoing embodiment, the receiving end receives the second RRC signaling associated with the first RRC signaling, based on which, the technical solution shown in fig. 4 may further include:

detecting, when second RRC signaling is received, whether the second RRC signaling is associated with the first RRC signaling: if yes, ignoring the second RRC signaling, continuing to perform LBT detection on the unlicensed spectrum and sending RRC response signaling of the first RRC signaling; otherwise, performing LBT detection for the unlicensed spectrum and sending RRC reply signaling for the second RRC signaling.

Specifically, the receiving end device may detect whether an association identifier for characterizing an association relationship with the first RRC signaling is carried in the second RRC signaling to determine whether the second RRC signaling is associated with the first RRC signaling. Specifically, whether a transmission identifier and a repetition index are included in a second RRC signaling is detected, wherein the transmission identifier is used for representing that the second RRC signaling is repeatedly sent for a first RRC signaling, and the repetition index is used for representing the number of times that the second RRC signaling is repeatedly sent for the first RRC signaling. When the second RRC signaling includes the transmission identifier transmission id and the repetition index, it may be determined that the second RRC signaling is the RRC signaling repeatedly sent for the first RRC signaling.

In addition, the second RRC signaling may include only the repetition index instead of the transmission identification id. Therefore, it may be detected only whether the repetition index is included in the second RRC signaling; if so, it may be confirmed that the second RRC signaling is RRC signaling repeatedly transmitted for the first RRC signaling.

It can be understood that, in the RRC Reconfiguration process, the two steps are only included in which the base station sends the RRC Reconfiguration signaling to the UE, and the UE responds to the base station that the RRC Reconfiguration Complete signaling after receiving the RRC Reconfiguration signaling.

It can be understood that, in the embodiment of the present invention, the implementation of the technical solution is described and illustrated by taking the RRC reconfiguration procedure as an example, and the technical solution of the embodiment of the present invention can be applied to other interaction procedures related to RRC signaling, such as procedures of RRC connection establishment, RRC connection release, and RRC connection maintenance, according to the needs of a specific application scenario.

EXAMPLE III

Based on the same inventive concept of the foregoing embodiment, referring to fig. 5, which shows a composition of a network device 50 provided in the embodiment of the present invention, where the network device 50 may be a sending end device when performing RRC signaling transmission in the case of an unlicensed spectrum, and includes: a first detection section 501, a first transmission section 502, a timing section 503, and a confirmation section 504; wherein the content of the first and second substances,

the first detection part 501 is configured to perform, in a preset first time period, LBT detection on an unlicensed spectrum according to a set number of times of detection after the first listen before talk LBT detection on the unlicensed spectrum fails;

the first transmitting part 502 is configured to transmit a first radio resource control, RRC, signaling to be transmitted on the unlicensed spectrum when the detection result of the detecting part LBT is successful;

the timing part 503 is configured to count time according to a set second time period after the sending part sends the first RRC signaling;

the confirming part 504 is configured to confirm that the transmission is not timed out when the RRC response signaling for the first RRC signaling is received within the second time period.

In the above scheme, the first detecting portion 501 is further configured to perform LBT detection again for the unlicensed spectrum when an RRC response signaling for the first RRC signaling is not received within the second time period;

the first transmitting portion 502 is further configured to transmit a second RRC signaling associated with the first RRC signaling.

In the foregoing scheme, the second RRC signaling carries an association identifier for characterizing an association relationship with the first RRC signaling.

In the above scheme, the association indication includes a transmission identifier and a repetition index, where the transmission identifier is used to represent that the second RRC signaling is repeatedly sent for the first RRC signaling, and the repetition index is used to represent the number of times that the second RRC signaling is repeatedly sent for the first RRC signaling.

In the above scheme, the association representation includes only the repetition index; wherein the repetition index number is used for representing the number of times that the second RRC signaling is repeatedly sent aiming at the first RRC signaling.

In the above scheme, the second time period is obtained by extending a set standard timing period according to the network quality indicator of the unlicensed spectrum.

It is to be understood that, in this embodiment, "part" may be part of a circuit, part of a processor, part of a program or software, or the like, and may also be a unit, and may also be a module or a non-modular.

In addition, each component in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit. The integrated unit can be realized in a hardware mode, and can also be realized in a software functional module mode.

Based on the understanding that the technical solution of the present embodiment essentially or partly contributes to the prior art, or all or part of the technical solution may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Accordingly, the present embodiment provides a computer storage medium storing an information transfer program that, when executed by at least one processor, performs the steps of the method of the first of the above-described embodiments.

Based on the foregoing network device 50 and computer storage medium, referring to fig. 6, which shows a specific hardware structure of a network device 50 provided in an embodiment of the present invention, the specific hardware structure may include: a first network interface 601, a first memory 602, and a first processor 603; the various components are coupled together by a bus system 604. It is understood that the bus system 604 is used to enable connected communication between these components. The bus system 604 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 604 in fig. 6. The first network interface 601 is configured to receive and transmit signals in a process of receiving and transmitting information with other external network elements;

a first memory 602 for storing a computer program capable of running on the first processor 603;

a first processor 603 configured to, when running the computer program, perform:

It will be appreciated that the first memory 602 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The first memory 602 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

The first processor 603 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the first processor 603. The first Processor 603 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the first memory 602, and the first processor 603 reads the information in the first memory 602, and completes the steps of the method in combination with the hardware thereof.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Specifically, when the first processor 603 in the network device 50 is further configured to run the computer program, the method steps described in the first embodiment are executed, and are not described herein again.

Example four

Based on the same inventive concept of the foregoing embodiment, referring to fig. 7, which shows a composition of a network device 70 provided in the embodiment of the present invention, where the network device 70 may be a receiving end device when performing RRC signaling transmission in the case of unlicensed spectrum, and includes: a receiving section 701, a second detecting section 702, a second transmitting section 703; wherein the content of the first and second substances,

the receiving part 701 is configured to receive a first radio resource control RRC signaling;

the second detecting part 702 is configured to perform listen before talk LBT detection on the unlicensed spectrum after the receiving part 701 receives the first RRC signaling;

the second sending part 703 is configured to send an RRC response signaling for the first RRC signaling over the unlicensed spectrum when the LBT detection result is successful.

In the above scheme, the second detecting portion 702 is configured to: and in a preset first time period, after the first LBT detection on the unauthorized frequency spectrum fails, carrying out LBT detection on the unauthorized frequency spectrum according to a set detection frequency.

In the foregoing solution, the second detecting portion 702 is further configured to:

when the receiving part 701 receives a second RRC signaling, it is detected whether the second RRC signaling is associated with the first RRC signaling: if yes, ignoring the second RRC signaling, continuing to perform LBT detection aiming at the unlicensed spectrum and sending an RRC response signaling of the first RRC signaling; otherwise, LBT detection is performed for the unlicensed spectrum and the second sending part 703 is triggered to send RRC response signaling for the second RRC signaling.

In the above scheme, the second detecting portion 702 is configured to:

detecting whether the second RRC signaling comprises a transmission identifier and a repeated index number; or, detecting whether the second RRC signaling only includes a repeated index number;

the transmission identifier is used for representing that the second RRC signaling is sent repeatedly for the first RRC signaling, and the repeated index number is used for representing the number of times that the second RRC signaling is sent repeatedly for the first RRC signaling.

In addition, the present embodiment provides a computer storage medium storing an information transmission program that, when executed by at least one processor, implements the steps of the method described in the second embodiment. For specific description of the computer storage medium, refer to the description in embodiment three, and are not described herein again.

Based on the above network device 70 and the computer storage medium, referring to fig. 8, a specific hardware structure of the network device 70 provided by the embodiment of the present invention is shown, which may include: a second network interface 801, a second memory 802, and a second processor 803; the various components are coupled together by a bus system 804. It is understood that the bus system 804 is used to enable communications among the components. The bus system 804 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are identified in FIG. 8 as the bus system 804. Wherein the content of the first and second substances,

the second network interface 801 is configured to receive and transmit signals in a process of receiving and transmitting information with other external network elements;

a second memory 802 for storing a computer program capable of running on the second processor 803;

a second processor 803, configured to, when running the computer program, perform:

It can be understood that, in this embodiment, components in the specific hardware structure of the network device 70 are similar to corresponding components in the third embodiment, and are not described herein again.

Specifically, the second processor 803 in the network device 70 is further configured to execute the method steps described in the second embodiment when running the computer program, which is not described herein again.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Industrial applicability

In the embodiment, the current timing period is prolonged, so that the situation that a larger delay is mistaken as an error to trigger an error processing flow is avoided, the repeated occupation of network resources is avoided, the robustness of signaling transmission under the condition of unauthorized spectrum is improved, and the efficiency of information transmission is improved.

Claims

1. A method for information transmission is applied to a sending terminal device, and comprises the following steps:

in a preset first time period, after LBT detection fails to be carried out on an unauthorized frequency spectrum after listening first and then speaking, carrying out LBT detection on the unauthorized frequency spectrum according to set detection times, and when an LBT detection result is successful, sending a first Radio Resource Control (RRC) signaling to be sent on the unauthorized frequency spectrum;

when receiving an RRC response signaling aiming at the first RRC signaling within the second time period, confirming that the transmission is not overtime; and

performing LBT detection again for the unlicensed spectrum and transmitting second RRC signaling associated with the first RRC signaling when RRC response signaling for the first RRC signaling is not received within the second time period,

the second time period is obtained by extending a set standard timing period according to the network quality index of the unlicensed spectrum, where the standard timing period is a timing period of a current delay timing mechanism.

2. The method according to claim 1, wherein the second RRC signaling carries an association identifier for characterizing an association relationship with the first RRC signaling.

3. The method of claim 2, wherein the association representation comprises a transmission identifier, a repetition index, and a transmission identifier, wherein the transmission identifier is used for representing that the second RRC signaling is repeatedly transmitted for the first RRC signaling, and the repetition index is used for representing the number of times the second RRC signaling is repeatedly transmitted for the first RRC signaling.

4. The method according to claim 2, wherein the associated representation only comprises the repetition index repeat index; wherein the repetition index number is used for representing the number of times that the second RRC signaling is repeatedly sent aiming at the first RRC signaling.

5. A method for information transmission, the method is applied to a receiving end device, and the method comprises the following steps:

when the LBT detection result is successful, sending RRC response signaling aiming at the first RRC signaling on the unlicensed spectrum; and

detecting, when a second RRC signaling is received, whether the second RRC signaling is associated with the first RRC signaling: if yes, ignoring the second RRC signaling, continuing to perform LBT detection aiming at the unlicensed spectrum and sending an RRC response signaling of the first RRC signaling; otherwise, performing LBT detection for the unlicensed spectrum and sending RRC reply signaling for the second RRC signaling.

6. The method of claim 5, wherein the performing listen-before-talk (LBT) detection for unlicensed spectrum comprises:

and in a preset first time period, after the first LBT detection on the unauthorized frequency spectrum fails, LBT detection is carried out on the unauthorized frequency spectrum according to a set detection frequency.

7. The method of claim 5, wherein the detecting whether the second RRC signaling is associated with the first RRC signaling comprises:

detecting whether the second RRC signaling comprises a transmission identifier and a repeated index number; or, detecting whether the second RRC signaling only includes a repeat index number;

the transmission identifier is used for representing that the second RRC signaling is repeatedly sent for the first RRC signaling, and the repetition index number is used for representing the number of times that the second RRC signaling is repeatedly sent for the first RRC signaling.

8. A network device includes a first detection section, a first transmission section, a timing section, and an acknowledgement section; wherein, the first and the second end of the pipe are connected with each other,

the first detection part is configured to perform LBT detection on an unlicensed spectrum according to a set detection number after the first listen before talk LBT detection fails on the unlicensed spectrum in a preset first time period;

the confirmation part is configured to confirm that the transmission is not timed out when the RRC response signaling aiming at the first RRC signaling is received in the second time period,

the first detection part is further configured to perform LBT detection again for the unlicensed spectrum when no RRC response signaling for the first RRC signaling is received within the second time period;

the first transmitting portion further configured to transmit second RRC signaling associated with the first RRC signaling,

the second time period is obtained by extending a set standard timing time period according to the network quality index of the unlicensed spectrum, where the standard timing time period is a timing time period of a current delay timing mechanism.

9. The network device according to claim 8, wherein the second RRC signaling carries an association identifier for characterizing an association relationship with the first RRC signaling.

10. The network device of claim 9, wherein the association representation comprises a transport identifier, which is used to characterize that the second RRC signaling is repeatedly transmitted for the first RRC signaling, and a repetition index, which is used to characterize the number of times the second RRC signaling is repeatedly transmitted for the first RRC signaling.

11. The network device of claim 9, wherein the association representation comprises only a repetition index repetionindex; wherein the repetition index number is used for representing the number of times that the second RRC signaling is repeatedly sent aiming at the first RRC signaling.

12. A network device, comprising: a receiving part, a second detecting part and a second sending part; wherein the content of the first and second substances,

the second transmitting part is configured to transmit RRC response signaling for the first RRC signaling on the unlicensed spectrum when the LBT detection result is successful,

the second detection portion further configured to:

when the receiving part receives second RRC signaling, detecting whether the second RRC signaling is associated with the first RRC signaling: if yes, ignoring the second RRC signaling, continuing to perform LBT detection aiming at the unlicensed spectrum and sending an RRC response signaling of the first RRC signaling; otherwise, performing LBT detection for the unlicensed spectrum and triggering the second transmitting part to transmit RRC response signaling for the second RRC signaling.

13. The network device of claim 12, wherein the second detection portion is configured to: and in a preset first time period, after the first LBT detection on the unauthorized frequency spectrum fails, carrying out LBT detection on the unauthorized frequency spectrum according to a set detection frequency.

14. The network device of claim 12, wherein the second detection portion is configured to:

15. A network device, comprising: a network interface, a memory, and a processor; wherein, the first and the second end of the pipe are connected with each other,

the memory for storing a computer program operable on the processor;

the processor, when running the computer program, is configured to perform the steps of the method of any one of claims 1 to 4 or any one of claims 5 to 7.

16. A computer storage medium storing a data replication transmission program that when executed by at least one processor implements the steps of the method of any one of claims 1 to 4 or any one of claims 5 to 7.