RU2783045C1 - Method for transmitting information, method for detecting information, terminal apparatus and network apparatus - Google Patents

Abstract

FIELD: wireless communication.

SUBSTANCE: method includes transmitting downlink control information (DCI) to the terminal apparatus based on the current type of random access, wherein the DCI is used to schedule a random access response corresponding to the current type of random access, the DCI is encrypted with the random access radio network temporary identifier (RA-RNTI), and the RA-RNTI is associated with the current type of random access.

EFFECT: possibility for the terminal apparatus of receiving corresponding random access response messages with differentiation if at least two types of random access procedures are supported, thereby ensuring the subsequent correct syntactic data analysis and successful completion of the random access procedures.

20 cl, 6 dwg

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority on the basis of Chinese Patent Application No. 201910093607.1 filed January 30, 2019 and incorporated herein by reference in its entirety.

FIELD OF TECHNOLOGY

[0002] This invention relates to telecommunication technologies, namely to a method for transmitting information, to a method for detecting information, to a terminal device and a network device.

prior art

[0003] In a future network deployment such as a 5G network deployment, the terminal device R15 (User Equipment, UE) and UE R16 may coexist in a cell. Therefore, there is the following application scenario: in the case where R15 UE initiates 4-step random access association procedure, and R16 UE initiates 2-step random access association procedure, the response sent by the network device to the UE the random access message may be a Msg2 message (corresponding to a 4-step random access procedure) or an MsgB message (corresponding to a 2-step random access procedure). In this application scenario, it is necessary to ensure that the UEs can receive random access response messages corresponding to the current differential random access types in order to avoid data parsing errors.

essence of the invention

[0004] Embodiments of the present invention provide an information transfer method, an information discovery method, a terminal device, and a network device for solving the problem that terminal devices cannot receive random access response messages corresponding to their current differentiation random access types in case if there are at least two types of random access procedures.

[0005] In order to solve the above technical problem, embodiments of the present invention are implemented as follows.

[0006] In accordance with the first embodiment of the present invention provides an information transmission method applicable to a network device, including:

DCI transmission to the terminal based on the current random access type, where

The DCI is used to schedule a random access response message corresponding to the current random access type.

[0007] According to a second embodiment of the present invention, provides an information discovery method applied to a terminal device, including:

performing discovery for the target DCI based on the current random access type, where

the target DCI is used to schedule a random access response message corresponding to the current random access type.

[0008] According to a third embodiment of the present invention, a network device is provided, including:

a transmission module configured to transmit DCI to a terminal device based on the current random access type, where

The DCI is used to schedule a random access response message corresponding to the current random access type.

[0009] In accordance with the fourth embodiment of the present invention provides a terminal device, including:

a discovery module configured to perform discovery for the target DCI based on the current random access type, where

the target DCI is used to schedule a random access response message corresponding to the current random access type.

[0010] According to a fifth embodiment, the present invention provides a network device including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where, when the computer program is executed by the processor, the steps of the above communication method can be implemented.

[0011] According to a sixth embodiment, the present invention provides a terminal device including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the above information detection method can be implemented.

[0012] According to a seventh embodiment of the present invention, a computer-readable storage medium is provided on which a computer program is stored, wherein when the computer program is executed by a processor, the steps of the information transmission method or the steps of the information detection method can be implemented.

[0013] In embodiments of the present invention, the network device transmits the DCI to the terminal device based on the current random access type, where the DCI is used to schedule a random access response message corresponding to the current random access type, thus the network device and the terminal device can have an agreed understanding of the random access procedure. This ensures that the terminal can receive appropriate differentiated random access response messages if at least two types of random access procedures are supported, thereby ensuring subsequent correct parsing of the data and successful completion of the random access procedures.

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For the sake of clarity in describing the technical solutions in the embodiments of the present invention, the accompanying drawings corresponding to various embodiments of the present invention are briefly listed below. Obviously, the following accompanying drawings illustrate only some of the embodiments of the present invention, and experts in the art can develop other drawings based on the accompanying drawings without creative effort.

[0015] FIG. 1 is a flowchart of a method for transmitting information according to an embodiment of the present invention;

[0016] FIG. 2 is a flowchart of an information detection method according to an embodiment of the present invention;

[0017] FIG. 3 is a first schematic block diagram of a network device according to an embodiment of the present invention;

[0018] FIG. 4 is a first schematic block diagram of a terminal device according to an embodiment of the present invention;

[0019] FIG. 5 is a second schematic block diagram of a terminal device according to an embodiment of the present invention; and

[0020] FIG. 6 is a second schematic block diagram of a network device according to an embodiment of the present invention.

DESCRIPTION OF EMBODIMENTS

[0021] For the sake of clarity in describing the technical solutions in the embodiments of the present invention, the following briefly describes the accompanying drawings corresponding to the various embodiments of the present invention. Obviously, the following accompanying drawings illustrate only some of the embodiments of the present invention, and experts in the art can develop other drawings based on the accompanying drawings without creative effort.

[0022] First of all, it is necessary to indicate that the wireless communication system in the embodiments of the present invention includes a terminal device and a network device. A terminal device may also be referred to as a terminal or user equipment (User Equipment, UE). The terminal may be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a Personal Digital Assistant (PDA), a Mobile Internet Device (MID). ), wearable device (Wearable Device) or car device. The specific type of terminal is not limited in the embodiments of the present invention. The network device may be a base station or a core network. The base station can be a 5G or later base station (eg gNB or 5G NR NB) or a base station in other communication systems (eg eNB, WLAN access point or other access points). The base station can be called NodeB, enhanced NodeB, access point, base transceiver station (Base Transceiver Station, BTS), radio base station, radio transceiver, basic service set (Basic Service Set, BSS), extended service set (Extended Service Set, ESS), NodeB, Evolved NodeB (eNB), Home NodeB, Home Evolved NodeB, WLAN access point, Wi-Fi node, or some other relevant terms in the art. The base station is not limited to a specific technical term, as long as the same technical effect is achieved.

[0023] The following is a detailed description of the present invention with reference to embodiments and the accompanying drawings.

[0024] FIG. 1 is a flowchart of a method for transmitting information according to an embodiment of the present invention. The method is applied to a network device. As shown in FIG. 1, the method includes the following step:

[0025] Step 101: Transmission of DCI to the terminal based on the current random access type.

[0026] Downlink control information (downlink control information, DCI) is used to schedule a random access response message corresponding to the current random access type. For example, if the current random access type is 4-hop RACH, DCI is used to schedule the Msg2 message; or if the current random access type is 2-hop RACH, DCI is used to schedule the MsgB message.

[0027] In a particular implementation, DCI may be carried on a Physical Downlink Control Channel (PDCCH) and transmitted in the target search space within a specified time window. The network device may detect the current random access type to know the type of random access procedure initiated by the terminal, such as 4-hop RACH or 2-hop RACH.

[0028] According to the information transmission method in this embodiment of the present invention, the network device transmits the DCI to the terminal device based on the current random access type, where the DCI is used to schedule a random access response message corresponding to the current random access type, thus the network the device and the terminal may have an agreed understanding of the random access procedure. This ensures that the terminal can receive appropriate differentiated random access response messages if at least two types of random access are supported, thereby ensuring that the data is subsequently correctly parsed and the random access procedures complete successfully.

[0029] In the present embodiment of the present invention, in the case where the resources required for at least two types of random access are configured in one cell, for example, in the case where the resources required for both 4-step random access associative procedures are configured and 2-step random access association procedures, the network device may use different methods to allow the terminal device to receive Msg2 messages or MsgB messages with differentiation to avoid conflicting understanding between the network device and the terminal device.

[0030] In particular, in order to ensure that the terminal device receives differential access random access response messages, indication information may be added to the DCI in this embodiment of the present invention. More specifically, the DCI includes indication information, and the indication information is used to indicate a random access type corresponding to a random access response message scheduled by the DCI.

[0031] Thus, when receiving a random access response message, the terminal can first blindly discover the DCI, then analyze the indication information in the blindly discovered DCI, and finally determine whether the scheduled blindly discovered DCI response message matches the current random access type. If yes, then the terminal determines that the blindly detected DCI is the required target DCI; or, if not, determines that the blindly discovered DCI is not the required target DCI and skips receiving the data scheduled by the blindly discovered DCI, thereby receiving the corresponding differentiated random access response messages.

[0032] For example, the indication information added to the DCI is not necessarily a 1-bit indication variable. Any one of the 16 bits reserved in DCI format 1_0 that is CRC-encrypted using RA-RNTI is indicated as an indicator variable for the RACH type (2-hop RACH or 4-hop RACH). If the value of the indicator variable is 0, this indicates that the corresponding DCI is scheduling a Msg2 message, or if the value of the indicator variable is 1, this indicates that the corresponding DCI is scheduling a MsgB message. Thus, if the terminal most recently initiates a 2-hop RACH (4-hop RACH) and the RACH type indicator variable in the detected DCI is 1 (0), a Transport Block (TB) is received on the corresponding physical downlink common channel communication (Physical Downlink Shared Channel, PDSCH) within the threshold window can be delivered to a higher layer. Otherwise, the terminal processes the data block scheduled by the blindly discovered DCI in a predetermined manner.

[0033] The preset method includes any of the following:

skipping the receipt of any data block scheduled by the blindly discovered DCI; and

rejecting any received block of data scheduled by the blindly detected DCI.

[0034] Similarly, in addition to the above definition, it can alternatively be defined that if the value of the indicator variable is 0, this indicates that the corresponding DCI is scheduling an MsgB message, or if the value of the indicator variable is 1, this indicates that the corresponding DCI schedules the Msg2 message.

[0035] In this embodiment of the present invention, in order to ensure that the terminal device receives differentiated random access response messages, the network device may configure different Search Spaces for the DCI (PDCCH) that schedules different types of random access response messages. For example, 4-hop RACH and 2-hop RACH can be configured with any of the following combinations:

A and B, A and D, and B and C, where

A indicates that the search space corresponding to the DCI scheduling Msg2 is the first search space, and the first search space is configured in the first CORESET;

B indicates that the search space corresponding to the DCI scheduling MsgB is the second search space, and the second search space is configured in the first CORESET;

C indicates that the search space corresponding to the DCI scheduling Msg2 is the first search space, and the first search space is configured in the second CORESET; and

D indicates that the search space corresponding to the DCI scheduling MsgB is the second search space, and the second search space is configured in the second CORESET.

[0036] Additionally, before step 101, the method may also include:

transmission of PDCCH configuration information to the end device, where

the PDCCH configuration information includes at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one random access type. This search space configuration information can be understood as general search space configuration information.

[0037] For example, in the case where the serving cell is configured with the resources required for both the 4-hop RACH and the 2-hop RACH, the PDCCH configuration information may include two types of search space configuration information, of which one is configured for DCI scheduling MsgB and the other configured for DCI scheduling Msg2.

[0038] It follows that the PDCCH configuration information can be broadcast via a system message. The system message may include at least one of the search scope parameter, control resource set information, blind detection frequency, and the like. Alternatively, the PDCCH configuration information may be sent via RRC signaling.

[0039] Thus, with the PDCCH configuration information transmitted to the tag, the tag can learn the corresponding configuration, thereby effectively performing PDCCH discovery.

[0040] Further, step 101 may include:

transmitting the DCI to the terminal in the target search space, where the target search space corresponds to the current random access type.

[0041] Thus, the DCI is transmitted in the target search space, allowing the terminal to discover the target DCI in the target search space, thereby allowing differential access random access response messages to be received.

[0044] In this embodiment, in order to ensure that the terminal device receives differential random access response messages, a variable associated with the type of random access may be added to the formula for calculating the temporal identity of the radio network with random access (Random Access Radio Network Temporary Identity , RA-RNTI) for DCI encryption, so that the end device uses the same RA-RNTI to perform Cyclic Redundancy Check (CRC). If the CRC check is successful, the TB received on the corresponding PDSCH within the threshold window is delivered to the higher layer.

[0043] The DCI further transmitted by the network device in step 101 may be encrypted with the RA-RNTI, where the RA-RNTI is associated with the current random access type.

[0044] Hereinafter, RA-RNTI may be calculated using the following formula:

RA-RNTI=

1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where

s_id is the Orthogonal Frequency Division Multiplexing (OFDM) symbol index of the first Physical Random Access Channel (PRACH) time domain resource symbol, and t_id is the slot index of the first PRACH time domain resource slot;

f_id is the frequency domain index of the PRACH RO event on the PRACH time domain resource;

A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, or the number of slots in a preset time window;

B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, or the number of ROs for frequency division multiplexing (frequency division multiplexing, FDM) on the PRACH time domain resource;

ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, or a numeric value specified by the end device;

n1, n2, n3, n4, and n5 are predetermined coefficients, where coefficient values may be integers; and

E_id is a variable associated with the random access type, where the variable is optionally an index of the random access type, which has an integer value.

[0045] For example, if the triggered RACH types include 2-hop RACH and 4-hop RACH, E_id is not necessarily a binary variable. For example, E_id is 0 or 1, where 0 means 4-hop RACH and 1 means 2-hop RACH; or 0 means 2-hop RACH and 1 means 4-hop RACH.

[0046] In an embodiment, n1=n2=n3=n4=1, A=80, B=8, n5=14x80x8x2, and E_id=ra_type_id, in which case:

RA-RNTI=

1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id+14×80×8×2×ra_type_id where ra_type_id represents the random access type and 0 represents the 4-hop RACH and 1 represents 2 step RACH.

[0047] In another embodiment, n1=n2=n3=n4=2, A=80, B=8, n5=1, and E_id=ra_type_id, in which case:

RA-RNTI=

1+ra_type_id+2×s_id+2×14×t_id+2×14×80×f_id+2×14×80×8×ul_carrier_id where ra_type_id represents random access type and 0 represents 4-hop RACH and 1 represents 2 step RACH.

[0048] In another embodiment, n1=n2=n3=1, A=80, B=8, n4=2, n5=14x80x8, and E_id=ra_type_id, in which case:

RA-RNTI=

1+s_id+14×t_id+14×80×f_id+14×80×8×ra_type_id+14×80×8×2×ul_carrier_id where ra_type_id represents random access type and 0 represents 4-hop RACH and 1 represents 2 step RACH.

[0049] FIG. 2 is a flowchart of an information detection method according to an embodiment of the present invention. The method is applied to the terminal device. As shown in FIG. 2, the method includes the following step:

[0050] Step 201: Perform target DCI discovery based on the current random access type.

[0051] The target DCI is used to schedule a random access response message corresponding to the current random access type. The target DCI may be understood as being required by the DCI terminal. For example, if the current random access type is 4-hop RACH, the target DCI is used to schedule the Msg2 message; or if the current random access type is 2-hop RACH, the target DCI is used to schedule the MsgB message. Performing discovery for the target DCI may be implemented by performing an appropriate PDCCH discovery.

[0052] According to the information discovery method in this embodiment of the present invention, target DCI discovery is performed based on the current random access type, so that the network device and terminal device can have an agreed understanding of the random access procedure. This ensures that the terminal can receive appropriate differentiated random access response messages if at least two types of random access are supported, thereby ensuring that the data is subsequently parsed correctly and the random access procedures complete successfully.

[0053] In this embodiment of the present invention, step 201 may further include:

performing blind discovery for DCI, where blind discovery for DCI may be performed via blind discovery for PDCCH;

judging, based on the indication information included in the blindly discovered DCI, whether the random access response message scheduled by the blindly discovered DCI matches the current random access type; and

in case the random access response message scheduled by the blindly discovered DCI matches the current random access type, determining that the blindly discovered DCI is the target DCI; where

the indication information is used to indicate the random access type corresponding to the random access response message scheduled by the blindly detected DCI.

[0054] Further, the method may further include:

in case the random access response message scheduled by the blindly discovered DCI does not match the current random access type, determining that the blindly discovered DCI is not the target DCI; and

processing a block of data in a predetermined manner scheduled by DCI blind detection, where

preset method includes any of the following:

skipping the receipt of any data block scheduled by the blindly discovered DCI; and

rejecting any received block of data scheduled by the blindly discovered DCI.

[0055] Before step 201 thereafter, the method may further include:

receiving PDCCH configuration information from the network device, where

the PDCCH configuration information includes at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one random access type.

[0056] Additionally, step 201 may include:

performing discovery for the target DCI in the target search space based on the current random access type and PDCCH configuration information, where

the target search space matches the current random access type.

[0057] Additionally, step 201 may include:

performing, based on the current random access type, discovery of the target DCI encrypted with RA-RNTI, where

RA-RNTI is associated with the current random access type. Performing discovery on a target DCI encrypted with RA-RNTI can be understood as using the RA-RNTI to decrypt the DCI, ie, to discover the target DCI encrypted with RA-RNTI.

[0058] Additionally, RA-RNTI is calculated using the following formula:

RA-RNTI=

1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where

s_id is the OFDM symbol index of the first PRACH time domain resource symbol, t_id is the slot index of the first PRACH time domain resource slot, and f_id is the RO frequency domain index on the PRACH time domain resource;

A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, and the number of intervals in the preset time window;

B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, and the number of FDM ROs on the PRACH time domain resource;

ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, and a numeric value specified by the end device;

n1, n2, n3, n4, and n5 are preset coefficients; and

E_id is a variable associated with the random access type.

[0059] The above embodiments describe the information transmission method and the information acquisition method in the present invention, and the following describes the network device and terminal device in the present invention with reference to the embodiments and the drawings.

[0060] FIG. 3 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in FIG. 3 network device 30 includes:

the first transmission module 31 configured to transmit DCI to the terminal device based on the current random access type, where

The DCI is used to schedule a random access response message corresponding to the current random access type.

[0061] The network device in this embodiment of the present invention transmits the DCI to the terminal device based on the current random access type, where the DCI is used to schedule a random access response message corresponding to the current random access type, so that the network device and the terminal device can have a consistent understanding random access procedures. This ensures that the terminal can receive appropriate differentiated random access response messages if at least two types of random access are supported, thereby ensuring that the data is subsequently parsed correctly and the random access procedures complete successfully.

[0062] In this embodiment of the present invention, the DCI further includes indication information, and the indication information is used to indicate the random access type corresponding to the random access response message scheduled by the DCI.

[0063] Hereinafter, the network device further includes:

a second transmission module configured to transmit PDCCH configuration information to the terminal device, where

the PDCCH configuration information includes at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one random access type.

[0064] Additionally, the first transmission module is specifically configured to:

DCI transmission to a terminal in the target search space, where

the target search space matches the current random access type.

[0065] Additionally, the DCI is encrypted with the RA-RNTI, and the RA-RNTI is associated with the current random access type.

[0066] Additionally, RA-RNTI is calculated using the following formula:

RA-RNTI=

1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where

s_id is the OFDM symbol index of the first PRACH time domain resource symbol, t_id is the slot index of the first PRACH time domain resource slot, and f_id is the RO frequency domain index on the PRACH time domain resource;

A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, or the number of intervals in a preset time window;

B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, or the number of FDM ROs on the PRACH time domain resource;

ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, or a numeric value specified by the end device;

n1, n2, n3, n4, and n5 are preset coefficients; and

E_id is a variable associated with the random access type.

[0067] FIG. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 4, terminal 40 includes:

discovery module 41, configured to perform discovery for the target DCI based on the current random access type, where

the target DCI is used to schedule a random access response message corresponding to the current random access type.

[0068] The terminal device in this embodiment of the present invention performs target DCI discovery based on the current random access type, so that the network device and the terminal device can have an agreed understanding of the random access procedure. This ensures that the terminal can receive appropriate differentiated random access response messages if at least two types of random access are supported, thereby ensuring that the data is subsequently parsed correctly and the random access procedures complete successfully.

[0069] In this embodiment of the present invention, the detection detection module 41 includes:

a detection unit configured to perform blind detection for DCI;

an evaluator configured to determine, based on the indication information included in the blindly discovered DCI, whether the random access response message scheduled by the blindly discovered DCI corresponds to the current random access type; and

a determination unit configured to: in a case where the random access response message scheduled by the blindly discovered DCI matches the current random access type, determining that the blindly discovered DCI is the target DCI; where

the indication information is used to indicate the random access type corresponding to the random access response message scheduled by the blindly detected DCI.

[0070] Hereinafter, the determination unit is further configured such that:

in case the random access response message scheduled by the blindly discovered DCI does not match the current random access type, determining that the blindly discovered DCI is not the target DCI; and

terminal device further includes:

a processing module configured to process a predetermined block of data scheduled by a blindly detected DCI, where

preset method includes one of the following:

skipping the receipt of any data block scheduled by the blindly discovered DCI; and

rejecting any received block of data scheduled by the blindly detected DCI.

[0071] Hereinafter, the terminal further includes:

a receiving module configured to receive PDCCH configuration information from a network device, where

the PDCCH configuration information includes at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one type of random access.

[0072] Additionally, the detection module 41 is specifically configured to:

performing target DCI discovery in the target search space based on the current random access type and the PDCCH configuration information, where

the target search space matches the current random access type.

[0073] Additionally, the detection module 41 is specifically configured to:

execution based on the current random access type detection of the target DCI encrypted by RA-RNTI, where

RA-RNTI is associated with the current random access type.

[0074] Additionally, RA-RNTI is calculated using the following formula:

RA-RNTI=

1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where

s_id is the OFDM symbol index of the first PRACH time domain resource symbol, t_id is the slot index of the first PRACH time domain resource slot, and f_id is the RO frequency domain index on the PRACH time domain resource;

A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, or the number of intervals in a preset time window;

B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, or the number of FDM ROs on the PRACH time domain resource;

ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, or a numeric value specified by the end device;

n1, n2, n3, n4, and n5 are preset coefficients; and

E_id is a variable associated with the random access type.

[0075] In addition, an embodiment of the present invention further provides a network device including a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the processes of the above embodiment of the information transmission method are implemented to achieve the same technical effects. To avoid repetition, the details are again not described here.

[0076] An embodiment of the present invention further provides a terminal device including a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the processes of the above embodiment of the information detection method are implemented to achieve the same technical effects. To avoid repetition, the details are again not described here.

[0077] In particular, FIG. 5 is a schematic diagram of a terminal hardware structure for implementing embodiments of the present invention. Terminal device 500 includes, but is not limited to, components such as RF unit 501, network module 502, audio output unit 503, input unit 504, sensor 505, display unit 506, user input unit 507, interface unit 508, memory 509, processor 510; and power supply 511. One skilled in the art can appreciate that a tag is not limited to the tag structure shown in FIG. 5. The terminal device may include more or fewer components than shown in the figure, or combine some of the components, or arrange the components differently. In this embodiment, the tag includes, but is not limited to, a mobile phone, a tablet personal computer, a laptop computer, a PDA, an on-board tag, a wearable device, a pedometer, and the like.

[0078] The processor 510 is configured to detect a target DCI based on the current random access type, where the target DCI is used to schedule a random access response message corresponding to the current random access type.

[0079] In accordance with this embodiment of the invention, the network device and the terminal device can have an agreed understanding of the random access procedure, ensuring that the terminal device can receive the corresponding differential random access response messages in the case where at least two random access types are supported, which ensures the subsequent correct analysis of the data and the successful completion of random access procedures.

[0080] It should be understood that in this embodiment of the present invention, the RF unit 501 may be configured to receive and transmit information or to receive and transmit a signal during a call, and in particular, after receiving downlink data from a base station, transmits data downlink to processor 510 for processing. It may also transmit uplink data to the base station. Typically, the RF unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the RF unit 501 can further communicate with the network and other devices via a wireless communication system.

[0081] The terminal device provides the user with wireless broadband Internet access via the network module 502, for example, helping the user to send or receive email, browse a web page, or access streaming media. http://baike.baidu.com/view/ 1524.htm

[0082] The audio output unit 503 can convert audio data into audio signals and output the audio signal as audio, where the audio data is received by the RF module 501 or the network module 502 or stored in the memory 509. In addition, the audio output unit 503 can further provide audio output (for example, sound received ring tone or received message sound) that is associated with a specific function performed by the terminal device 500. The audio output unit 503 includes a loudspeaker, a buzzer, a telephone handset, etc.

[0083] The input unit 504 is configured to receive an audio signal or a video signal. Input unit 504 may include a graphics processing unit (GPU) 5041 and a microphone 5042. image capture mode. The processed image frame may be displayed on the display unit 506. The image frame processed by the graphics processing unit 5041 may be stored in the memory 509 (or other storage medium) or may be transmitted by the radio frequency unit 501 or the network module 502. The microphone 5042 may receive sound and may convert sound to audio data. In the phone call mode, the processed audio data can be converted into a format for transmission by the RF unit 501 to the mobile base station and output.

[0084] Terminal device 500 further includes at least one sensor 505, such as an optical sensor, a motion sensor, and other sensors. Specifically, the optical sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 5061 based on the intensity of the ambient light. When the terminal device 500 approaches the ear, the proximity sensor may turn off the display panel 5061 and/or the backlight. As a type of motion sensor, an accelerometer sensor can detect accelerations in all directions (typically three axes), can determine the magnitude and direction of gravity when the mobile phone is in a static state, and can be used to determine the position of a terminal device. recognition (for example, switching the screen between portrait and landscape orientation, related games and calibration of the position of the magnetometer), functions related to vibration recognition (for example, pedometer and touch), etc. The sensor 505 may further include a fingerprint sensor, a sensor pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. Details are not described here.

[0085] The display unit 506 is configured to display information entered by the user or information provided to the user. The display unit 506 may include a display panel 5061. The display panel 5061 may be configured as a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

[0086] The user input block 507 may be configured to receive input information about numbers or characters and generate a key input associated with user settings and control of the functions of the terminal device. Specifically, the user input unit 507 includes a touch pad 5071 and other input devices 5072. The touch pad 5071 is also referred to as a touch screen and can collect user touch operations on or near the touch pad (e.g., an operation performed by a user on the touch pad 5071 or near it using any suitable object or accessory such as a finger or stylus). The touch panel 5071 may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch orientation, detects the signal caused by the touch operation, and transmits the signal to the touch controller. The touch controller receives touch information from the touch detection device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 510, receives and executes the command sent by the processor 510. In addition, the touch panel 5071 can be used in a variety of types, for example, in the form of a resistive, capacitive, infrared or surface-acoustic touch panel. In addition to the touchpad 5071, the user input unit 507 may further include other input devices 5072. In particular, other input devices 5072 may include, but are not limited to, a physical keyboard, a function key (e.g., a volume key or a power/ power off), trackball, mouse and joystick. Details are not described here.

[0087] In addition, the touch panel 5071 may cover the display panel 5061. When a touch operation is detected on or near the touch panel 5071, the touch panel 5071 passes the touch operation to the processor 510 to determine the type of touch event. The processor 510 then provides the appropriate visual output to the display panel 5061 based on the type of touch event. FIG. 5, the touch panel 5071 and the display panel 5061 serve as two separate components to implement the input and output functions of the terminal device. However, in some embodiments, the touch panel 5071 and the display panel 5061 may be combined to implement the input and output functions of the terminal device. In particular, it is not limited here.

[0088] Interface box 508 is an interface for connecting an external device to terminal device 500. For example, an external device may include a wired or wireless headphone port, an external power supply (or charger) port, a wired or wireless data port, a memory card port, a device port equipped with an identification module, an audio input/output (I/O) port, a video input/output port, or a headphone port. Interface unit 508 may be configured to receive input (eg, data and power information) from an external device and transmit the received input to one or more elements in terminal device 500; or may be configured to transfer data between terminal device 500 and an external device.

[0089] The memory 509 may be configured to store programs and various types of data. The memory 509 may mainly include a program storage area and a data storage area. The program storage area may store an operating system, an application program required by at least one function (for example, a sound reproduction function or a picture reproduction function), and the like. The data storage area may store data (for example, audio data and a phone book) created based on the use of a mobile phone. In addition, memory 509 may include high speed random access memory and may further include non-volatile memory, such as at least one magnetic disk storage device or flash memory device, or other volatile solid state storage devices.

[0090] The processor 510 is the control center of the terminal device, uses various interfaces and lines to connect all parts of the entire terminal device, and performs various functions and data processing of the terminal device by starting or executing a software program and/or module stored in memory 509 and calling data stored in the memory 509, thereby performing general monitoring on the terminal device. Processor 510 may include one or more processors. Processor 510 may further integrate an application processor and a modem processor. The application processor mainly processes an operating system, a user interface, an application program, and the like. The modem's processor primarily handles wireless communications. Thus, alternatively, the modem processor may not be integrated into the processor 510.

[0091] The terminal device 500 may further include a power source 511 (eg, a battery) that supplies power to the components. The power supply 511 may further be connected in series with the processor 510 using the power management system to implement functions such as charge control, discharge control, and power management with the power management system.

[0092] In addition, terminal device 500 may further include some functional modules that are not shown. Details are not described here.

[0093] FIG. 6 is a schematic diagram of a network device hardware structure for implementing embodiments of the present invention. Network device 60 includes, among other things, a bus 61, a transceiver 62, an antenna 63, a bus interface 64, a processor 65, and a memory 66.

[0094] In this embodiment of the invention, network device 60 further includes a computer program stored in memory 66 and capable of running on processor 65. When the computer program is executed by processor 65, the following step is performed:

transmitting the DCI to the terminal based on the current random access type, where the DCI is used to schedule a random access response message corresponding to the current random access type.

[0095] The transceiver 62 is configured to transmit and receive data under the control of the processor 65.

[0096] FIG. 6, in a bus architecture (represented by bus 61), bus 61 may include any number of interconnected buses and bridges, and bus 61 connects various circuits including one or more processors, represented by processor 65, and memory, represented by memory 66. Bus 61 can further connect various other circuits such as a peripheral device, a voltage regulator, and a power management circuit. This is generally accepted in the art and therefore is not described further in this description. Bus interface 64 provides an interface between bus 61 and transceiver 62. Transceiver 62 may be a single element or may be multiple elements, such as multiple receivers and transmitters, and provides a unit for communicating with various other devices in a transmission medium. Data processed by processor 65 is transmitted wirelessly via antenna 63. In addition, antenna 63 receives and transmits data to processor 65.

[0097] The processor 65 is responsible for bus 61 control and general processing, and may further provide various functions including timing, peripheral interface, voltage regulation, power control, and other control functions. Memory 66 may be used to store data for use by processor 65 when processor 65 is performing an operation.

[0098] Additionally, processor 65 may be a CPU, ASIC, FPGA, or CPLD.

[0099] An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the processes of the above embodiment of the information transmission method or the above embodiment of the information detection method can be implemented with the same technical effects. . To avoid repetition, the details are not described here. For example, a computer-readable storage medium is a Read-Only Memory (ROM), Random Access Memory (RAM), a magnetic disk, or an optical disk.

[00100] It should be noted that in this specification, the terms "comprise" and "comprise" or any variations thereof are intended to cover non-exclusive inclusion, such as a process, method, item, or apparatus, including a list of elements, where it not only includes data elements, but also includes other elements not explicitly listed, or additionally includes elements inherent in such a process, method, item, or device. Unless further restricted, an element preceded by the phrase "includes..." does not preclude the existence of other identical elements in a process, method, item, or device incorporating that element.

[00101] In accordance with the above description of the embodiments, a person skilled in the art can clearly understand that the methods in the above embodiments can be implemented using software in combination with the necessary common hardware platform, and, of course, alternatively can be implemented using equipment. However, in most cases, the first option is the preferred option. Based on such an understanding, the technical solutions of the present invention, in essence, or part contributing to the development of the prior art, can be implemented in the form of a software product. The computer program product is stored on a storage medium (e.g., ROM/RAM, magnetic disk, or optical disk) and includes several instructions for specifying a terminal device (which may be a mobile phone, computer, server, air conditioner, network device, etc. ) to perform the methods described in the embodiments of this invention.

[00102] Embodiments of the present invention are described above with reference to the accompanying drawings, but the present invention is not limited to these embodiments. These embodiments are illustrative only and not restrictive. On the basis of the claimed technical solution, a person skilled in the art can obtain many variations without departing from the essence of the present invention and the protection scope of the claims. All of these changes fall within the protection of this invention.

Claims (104)

1. An information transmission method applied to a network device, including: transmitting downlink DCI control information to a terminal device based on a current random access type, where The DCI is used to schedule a random access response message corresponding to the current random access type, The DCI is encrypted with the temporary random access radio network identifier RA-RNTI, and the RA-RNTI is associated with the current random access type, RA-RNTI is calculated using the following formula: RA-RNTI= 1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where s_id is the orthogonal frequency division multiplex OFDM symbol index of the first time domain resource symbol PRACH of the physical random access channel; t_id is the slot index of the first PRACH time domain resource slot; f_id is the frequency domain index of the PRACH RO event on the PRACH time domain resource; A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, or the number of intervals in a preset time window; B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, or the number of ROs for FDM with frequency division on the PRACH time domain resource; ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, or a numeric value specified by the end device; n1, n2, n3, n4 and n5 are preset coefficients; and E_id is a variable associated with the random access type. 2. The method of claim 1, wherein the DCI contains indication information, and the indication information is used to indicate a random access type corresponding to a random access response message scheduled by the DCI. 3. The method of claim 1, wherein before transmitting the downlink DCI control information to the terminal based on the current random access type, the method further comprises: transmission of information about the PDCCH configuration of the physical downlink control channel to the terminal device, while the PDCCH configuration information contains at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one type of random access. 4. The method of claim 3, wherein transmitting the DCI downlink control information to the terminal based on the current random access type comprises: transmitting the DCI to the terminal in the target search space, where the target search space corresponds to the current random access type. 5. Information detection method applied to the terminal device, including: performing discovery on a target DCI encrypted with RA-RNTI based on the current random access type, where the target DCI is used to schedule a random access response message corresponding to the current random access type; RA-RNTI is calculated using the following formula: RA-RNTI= 1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where s_id is the orthogonal frequency division multiplex OFDM symbol index of the first time domain resource symbol PRACH of the physical random access channel; t_id is the slot index of the first PRACH time domain resource slot; f_id is the frequency domain index of the PRACH RO event on the PRACH time domain resource; A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, or the number of intervals in a preset time window; B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, or the number of ROs for FDM with frequency division on the PRACH time domain resource; ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, or a numeric value specified by the end device; n1, n2, n3, n4 and n5 are preset coefficients; and E-id is a variable associated with the type of random access. 6. The method of claim 5, wherein performing target DCI discovery based on the current random access type includes: performing blind discovery for DCI; determining, based on the indication information contained in the blindly discovered DCI, whether the random access response message scheduled by the blindly discovered DCI corresponds to the current random access type; and in case the random access response message scheduled by the blindly discovered DCI matches the current random access type, determining that the blindly discovered DCI is the target DCI; where the indication information is used to indicate the random access type corresponding to the random access response message scheduled by the blindly detected DCI. 7. The method according to p. 6, including: determining that the blindly discovered DCI is not a target DCI if the random access response message scheduled by the blindly discovered DCI does not match the current random access type; and processing a preset data block scheduled by a blindly detected DCI, where preset method includes any of the following: skipping the receipt of any data block scheduled by the blindly discovered DCI; and rejecting any received block of data scheduled by the blindly discovered DCI. 8. The method of claim 5, wherein before performing target DCI discovery based on the current random access type, the method further comprises: obtaining PDCCH configuration information from the network device, where the PDCCH configuration information contains at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one type of random access. 9. The method of claim 8, wherein performing target DCI discovery based on the current random access type includes: performing discovery for the target DCI in the target search space based on the current random access type and PDCCH configuration information, where the target search space matches the current random access type. 10. Network device, including: the first transmission module configured to transmit DCI to the terminal based on the current random access type, where The DCI encrypted with RA-RNTI is used to schedule a random access response message corresponding to the current random access type; RA-RNTI is calculated using the following formula: RA-RNTI= 1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where s_id is the orthogonal frequency division multiplex OFDM symbol index of the first time domain resource symbol PRACH of the physical random access channel; t_id is the slot index of the first PRACH time domain resource slot; f_id is the frequency domain index of the PRACH RO event on the PRACH time domain resource; A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, or the number of intervals in a preset time window; B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, or the number of ROs for FDM with frequency division on the PRACH time domain resource; ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, or a numeric value specified by the end device; n1, n2, n3, n4 and n5 are preset coefficients; and E_id is a variable associated with the random access type. 11. The apparatus of claim 10, wherein the DCI contains indication information, and the indication information is used to indicate a random access type corresponding to a random access response message scheduled by the DCI. 12. The device according to claim 10, containing: a second transmission module configured to transmit PDCCH configuration information to the terminal device, where the PDCCH configuration information contains at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one type of random access. 13. The apparatus of claim 12, wherein the first transmission module is specifically configured to: transmitting the DCI to the terminal in the target search space, where the target search space corresponds to the current random access type. 14. Terminal device, including: a discovery module configured to perform discovery for the target DCI based on the current random access type, where the target DCI encrypted with the RA-RNTI is used to schedule a random access response message corresponding to the current random access type; RA-RNTI is calculated using the following formula: RA-RNTI= 1+n1×s_id+n2×14×t_id+n3×14×A×f_id+n4×14×A×B×ul_carrier_id+n5×E_id, where s_id is the orthogonal frequency division multiplex OFDM symbol index of the first time domain resource symbol PRACH of the physical random access channel; t_id is the slot index of the first PRACH time domain resource slot; f_id is the frequency domain index of the PRACH RO event on the PRACH time domain resource; A is any of the following numeric values: a natural number configured by the network device, a preset value, a numeric value specified by the end device, or the number of intervals in a preset time window; B is any of the following numeric values: a network device-configured natural number, a preset value, a terminal-specified numeric value, or the number of ROs for FDM with frequency division on the PRACH time domain resource; ul_carrier_id is any of the following numeric values: a natural number configured by the network device, a preset value, or a numeric value specified by the end device; n1, n2, n3, n4 and n5 are preset coefficients; and E_id is a variable associated with the random access type. 15. The terminal device according to claim 14, in which the discovery module contains: a detection unit configured to perform blind detection for DCI; a judging unit configured to judge, based on the indication information contained in the blindly detected DCI, whether the random access response message scheduled by the blindly detected DCI matches the current random access type; and a determination unit configured for a case where the random access response message scheduled by the blindly discovered DCI matches the current random access type, determining that the blindly discovered DCI is the target DCI; where the indication information is used to indicate the random access type corresponding to the random access response message scheduled by the blindly detected DCI. 16. The terminal device according to claim 15, where the determining unit is further configured for the case where the random access response message scheduled by the blindly discovered DCI does not match the current random access type, determining that the blindly discovered DCI is not the target DCI, where terminal device further includes: a processing module configured to process a preset block of data scheduled by blindly detected DCI, where the preset method includes one of the following: skipping the receipt of any data block scheduled by the blindly discovered DCI; and rejecting any received block of data scheduled by the blindly detected DCI. 17. The terminal device according to claim 14, further containing: a receiving module configured to receive PDCCH configuration information from a network device, where the PDCCH configuration information contains at least two types of search space configuration information, and each type of search space configuration information is configured for DCI scheduling response messages corresponding to one type of random access. 18. The terminal device according to claim 17, where the detection module is specially configured for: performing target DCI discovery in the target search space based on the current random access type and the PDCCH configuration information, where the target search space corresponds to the current random access type. 19. A computer-readable storage medium in which the computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the method for transmitting information according to any one of paragraphs. 1-4 completed. 20. A computer-readable storage medium in which the computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, the steps of the method for detecting information according to any one of paragraphs. 5-9 completed.

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