WO2021228074A1

WO2021228074A1 - Information detection method, and information sending method, terminal, and network side device

Info

Publication number: WO2021228074A1
Application number: PCT/CN2021/093012
Authority: WO
Inventors: 姜大洁; 李东儒; 潘学明; 刘选兵
Original assignee: 维沃移动通信有限公司
Priority date: 2020-05-15
Filing date: 2021-05-11
Publication date: 2021-11-18
Also published as: CN113676990B; CN113676990A

Abstract

Provided are an information detection method, an information sending method, a terminal, and a network side device, which relate to the technical field of communications. The information detection method, when applied to a terminal, comprises: detecting a first signal on a target time-frequency resource; and if a first signal that matches a target sequence is detected, detecting a target paging physical downlink control channel (PDCCH) corresponding to the first signal, wherein the first signal is a sequence-based signal, at least one of the first signal and the target paging PDCCH carries first information, and the first information comprises: information corresponding to a terminal identifier or information corresponding to terminal grouping.

Description

Information detection and sending method, terminal and network side equipment

Cross-references to related applications

This application claims the priority of Chinese Patent Application No. 202010414680.7 filed in China on May 15, 2020, the entire content of which is incorporated herein by reference.

Technical field

The present invention relates to the field of communication technology, in particular to an information detection and transmission method, terminal and network side equipment.

Background technique

In the Long Term Evolution (LTE), New Radio (NR) R15, R16 systems, user equipment (User Equipment, UE, also called terminal) in a Discontinuous Reception (DRX) cycle Inside, you can only monitor the paging time (Paging Occasion, PO) on the corresponding paging radio frame (Paging Frame, PF) to see if there is a paging radio on the Physical Downlink Control Channel (PDCCH). Network Temporary Identity (Paging Radio Network Temporary Identity, P-RNTI) to determine whether there is a paging message on the corresponding Physical Downlink Shared Channel (PDSCH).

If the UE analyzes that the P-RNTI is carried on the PDCCH, it will receive the data on the PDSCH according to the PDSCH parameters indicated on the PDCCH; if the paging message (data on the PDSCH) received by the UE contains the UE ID list, The terminal needs to match its UE ID with the UE ID carried in the paging message to determine whether the paging message is calling itself.

If the UE does not resolve the P-RNTI on the PDCCH, it does not need to receive the PDSCH physical channel anymore, and can go to sleep according to the DRX cycle.

If any UE in a group of UEs with the same PO needs to be paged and the UE ID related information is included on the Paging PDSCH corresponding to the PO, then the group of UEs may resolve to carry the P-RNTI on the PDCCH, Then receive the data on the paging PDSCH. Only the UE that needs to be paged finds its own UE ID in the UE ID list contained in the paging message (data on the PDSCH). After receiving the paging message, other UEs do not have the UE ID list contained in the paging message. It found that it has its own UE ID. This phenomenon is called unnecessary paging PDSCH reception, and it costs electricity for UEs that do not need to be paged.

Summary of the invention

The embodiments of the present invention provide an information detection and transmission method, a terminal, and a network side device to solve the problem that the existing paging detection method is not conducive to power saving of the terminal.

In order to solve the above technical problems, the embodiments of the present invention adopt the following solutions:

In the first aspect, an embodiment of the present invention provides an information detection method, which is applied to a terminal, and includes:

Detecting the first signal on the target time-frequency resource;

If the first signal matching the target sequence is detected, then the target paging physical downlink control channel PDCCH corresponding to the first signal is detected;

Wherein, the first signal is a sequence-based signal, and at least one of the first signal and the target paging PDCCH carries first information;

Wherein, the first information includes: information corresponding to a terminal identifier or information corresponding to a terminal group.

In the second aspect, an embodiment of the present invention also provides an information sending method, which is applied to a network side device, and includes:

When the terminal needs to be paged or there is a system information change, sending the first signal on the target time-frequency resource;

After sending the first signal, send the target paging physical downlink control channel PDCCH corresponding to the first signal;

In the third aspect, an embodiment of the present invention also provides a terminal, including:

The first detection module is configured to detect the first signal on the target time-frequency resource;

The second detection module is configured to detect the target paging physical downlink control channel PDCCH corresponding to the first signal if the first signal matching the target sequence is detected;

In a fourth aspect, an embodiment of the present invention also provides a terminal, including: a memory, a processor, and a program or instruction that is stored in the memory and can run on the processor, and the program or instruction is implemented when the processor is executed The steps of the above-mentioned information detection method.

In the fifth aspect, an embodiment of the present invention also provides a network side device, including:

The first sending module is configured to send the first signal on the target time-frequency resource when the terminal needs to be paged or there is a system information change;

The second sending module is configured to send the target paging physical downlink control channel PDCCH corresponding to the first signal after the first signal is sent;

In a sixth aspect, embodiments of the present invention also provide a network-side device, including: a memory, a processor, and a program or instruction stored on the memory and running on the processor, and the program or instruction is executed by the processor When realizing the steps of the above-mentioned information sending method.

In a seventh aspect, an embodiment of the present invention also provides a readable storage medium having a program or instruction stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the foregoing information detection method or the foregoing The steps of the message sending method.

In an eighth aspect, embodiments of the present invention also provide a computer software product, the computer software product is stored in a non-volatile storage medium, and the software product is configured to be executed by at least one processor to implement the above-mentioned information The steps of the detection method or the steps of the above-mentioned information transmission method.

The beneficial effects of the present invention are:

In the above solution, by first detecting the first sequence-based signal on the target time-frequency resource, if the first signal matching the target sequence is detected, the terminal detects the paging PDCCH corresponding to the first signal, thereby enabling Reducing the power consumption of the terminal in the paging detection process is beneficial to the terminal to save power consumption.

Description of the drawings

FIG. 1 shows a schematic flowchart of an information detection method according to an embodiment of the present invention;

Figure 2 shows one of the schematic diagrams of the time sequence relationship of each information detected by the terminal;

Fig. 3 shows the second schematic diagram of the time sequence relationship of various information detected by the terminal;

FIG. 4 shows the third schematic diagram of the time sequence relationship of various information detected by the terminal;

FIG. 5 shows the fourth schematic diagram of the timing relationship of various information detected by the terminal;

FIG. 6 shows a schematic diagram of modules of a terminal according to an embodiment of the present invention;

FIG. 7 shows a structural block diagram of a terminal according to an embodiment of the present invention;

FIG. 8 shows a schematic flowchart of an information sending method according to an embodiment of the present invention;

FIG. 9 shows a schematic diagram of modules of a network side device according to an embodiment of the present invention;

Fig. 10 shows a structural block diagram of a network side device according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

In the description of the embodiments of the present invention, some concepts related to the present invention are first described as follows.

1. Paging mechanism:

The network can send paging to user equipment in idle, inactive and connected states. The paging process can be triggered by the core network to notify a UE to receive a paging request; or triggered by eNodeB/gNB to notify the system Information updates, and notify the UE to receive information such as the Earthquake and Tsunami Warning System (ETWS) and the Commercial Mobile Alert System (CMAS).

In a Discontinuous Reception (DRX) period, the UE can only monitor the Physical Downlink Control Channel (PDCCH) at the paging moment (PO) on the corresponding paging radio frame (PF). ) Carries a paging radio network temporary identity (Paging Radio Network Temporary Identity, P-RNTI), and then determines whether a corresponding physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) carries a paging message.

If the UE does not resolve the P-RNTI on the PDCCH, it does not need to receive the PDSCH physical channel anymore, and can go to sleep according to the DRX cycle. Using this mechanism, in a DRX cycle, the UE can only receive the PDCCH at the time position where the PO appears, and then receive the PDSCH as needed. At other times, you can sleep to save power.

When the system is configured with multiple beams, the UE assumes that the system transmits the same paging message and short message (Short Message) on all beams. How to select one or more beams to receive paging messages and Short Messages belongs to the UE implementation.

Among related technologies, the paging technology will cause unnecessary paging PDSCH reception problems.

2. Downlink Control Information (DCI) bits carried by the paging PDCCH include the following:

The following information is transmitted in DCI format 1_0, and the cyclic redundancy check (Cyclic Redundancy Check, CRC) is scrambled by P-RNTI:

A11. Short message indication, 2 bits, please refer to Table 1 below;

A12. Short Messages (Short Messages), 8 bits. If only paging scheduling information is carried, this bit field is reserved;

A13. Frequency domain resource allocation,

Bit, if only short message is carried, this bit field is reserved;

in,

To control the size of resource set 0.

A14. Time domain resource allocation, 4 bits. If only short messages are carried, this bit field is reserved;

A15. Virtual Resource Block (VRB) to Physical Resource Block (Physical Resource Block, PRB) mapping, 1 bit, if only short messages are carried, this bit field is reserved;

A16. Modulation and coding scheme, 5 bits. If only short messages are carried, this bit field is reserved.

A17. Transport Block (TB) extension, 2 bits. If only short messages are carried, this bit field is reserved.

A18. Reserved bits, 6 bits.

Table 1 Short message indication

比特字段Bit field	短消息指示Short message indication
0000	预留Reserved
0101	DCI中只存在用于寻呼的调度信息Only scheduling information for paging exists in DCI
1010	DCI中只有短消息Only short messages in DCI
1111	寻呼和短消息的调度信息都存在于DCI中The scheduling information of paging and short message is in DCI

Among them, the specific content of Short Messages (8 bits) is:

Short messages can be transmitted on PDCCH using P-RNTI, with or without associated paging messages, using DCI format short message format 1_0.

Table 2 defines the short message, bit 1 is the most meaningful bit.

Table 2 Short Message

Aiming at the problem that the existing paging technology will cause unnecessary paging PDSCH reception, the present invention provides an information detection and transmission method, terminal and network side equipment.

As shown in FIG. 1, an embodiment of the present invention provides an information detection method, which is applied to a terminal, and includes:

Step 11. Detect the first signal on the target time-frequency resource;

It should be noted that the first signal is a sequence-based signal. For example, the first signal is a wake-up signal (Wakeup Signal, WUS). Try to detect the first signal on the time-frequency resource, because when the network side device does not find that there is a terminal that needs to be paged or does not need to change system information, it will not send the first signal. In this case, even if the terminal performs The first signal is also not detected.

Step 12: If the first signal matching the target sequence is detected, the terminal detects the target paging physical downlink control channel PDCCH corresponding to the first signal;

It should be noted that the target paging PDCCH refers to the PDCCH used for paging corresponding to the first signal.

It should be noted that at least one of the first signal and the target paging PDCCH in the embodiment of the present invention carries first information; specifically, the first information includes: information corresponding to the terminal identifier or grouping with the terminal Corresponding information.

It should be noted that the first signal and the target paging PDCCH in the embodiment of the present invention may not carry the first information; specifically, the first information includes: information corresponding to the terminal identifier or grouping with the terminal Corresponding information. At least one item of the first signal and the target paging PDCCH carries some information related to the serving cell of the terminal, for example, the generation formula of the target sequence carries some items or parameters related to the cell ID.

It should be noted that the above-mentioned information corresponding to the terminal identifier refers to information related to the terminal identifier. For example, the information may specifically be the terminal identifier (for example, UE ID), or part of the information in the terminal identifier. ID is International Mobile Subscriber Identity (IMSI), International Mobile Equipment Identity (IMEI), Temporary Mobile Subscriber Identity (TMSI), Service Temporary Mobile Subscriber Identity (Serving Temporary Mobile Subscriber Identity, S-TMSI) (such as 5G-S-TMSI), one of the last 10 bits of S-TMSI (such as 5G-S-TMSI), or other types of UE ID; The information corresponding to the terminal grouping refers to information related to the terminal grouping. For example, the information may specifically be a grouping identifier or part of the information in the grouping identifier.

It should also be noted that detecting the first signal matching the target sequence refers to: the terminal performs sequence correlation operations on the received signal and a target sequence on the target time-frequency resource, and if the sequence correlation result obtained is high If the predetermined threshold is reached, the terminal confirms that the first signal that matches the one target sequence is detected; otherwise, the terminal considers that the first signal that matches the one target sequence is not detected.

It should be noted that, in the above solution, by first detecting the first signal based on the sequence, and then receiving the target paging PDCCH according to the detection result of the first signal, there is no need to perform operations such as PDCCH detection and channel decoding in real time, which can save terminal consumption. And because the target paging PDCCH is used to schedule the paging PDSCH, only when the first signal matching the target sequence is detected, the target paging PDCCH detection is performed, and then the terminal may receive the paging PDSCH When the first signal matching the target sequence is not detected, the target paging PDCCH is not detected, and the terminal will not receive the paging PDSCH, which can reduce the unnecessary paging PDSCH reception of the terminal. Probability, saving the power consumption of the terminal.

It should be noted that the target sequence mentioned in the embodiment of the present invention carries one of the following information:

A11. Information corresponding to the terminal identification;

It should be noted that the information corresponding to the terminal identifier refers to information related to the terminal identifier. For example, the information may specifically be the terminal identifier (for example, UE ID), or may be part of the information in the terminal identifier. Among them, the UE ID is one of IMSI, IMEI, TMSI, 5G-S-TMSI, and the last 10 bits of 5G-S-TMSI, or other types of UE ID.

A12. Information corresponding to the terminal group;

It should be noted that the information corresponding to the terminal grouping refers to information related to the terminal grouping. For example, the information may specifically be a grouping identifier or part of the information in the grouping identifier.

It should be further noted that the target sequence includes at least one common sequence and one specific sequence (specific sequence).

It should also be noted that when the target sequence and the target paging PDCCH both contain information corresponding to the terminal group, the information corresponding to the terminal group contained in the target paging PDCCH belongs to the information contained in the target sequence. A subset or subgroup of information corresponding to the terminal group. For example, the information corresponding to the terminal group contained in the target paging PDCCH belongs to the first set, and the information corresponding to the terminal group contained in the target sequence belongs to the second set, wherein the first set is the first set. The subset or subgroup of the second set, that is, the information corresponding to the terminal group contained in the target sequence and the information corresponding to the terminal group contained in the target paging PDCCH are nested.

The explanation of the above situation is as follows.

Case 1: The first signal indicates grouping information

As shown in Table 3, UEs mapped to a PO are divided into two groups: group A and group B.

For example, the UE is divided into two groups by the method agreed in the agreement. Specifically:

UE group ID=[UE_ID/(N*Ns)] rounded up mod 2, where UE group ID=0: group A; UE group ID=1: group B; UE_ID=5G-S-TMSI mod 1024; N Represents the total number of paging frames in a specific time T; Ns represents the number of paging occasions (PO) in a paging frame.

Among them, group A includes group 1 and group 2, and group B includes group 3 and group 4. Further, each group includes at least one UE.

Table 3 Grouping situation of UE mapped to a PO

The first signal indicates whether the group A and the group B need to monitor the PDCCH rules as shown in Table 4. If the UE of the group A detects the target sequence 1 or 2, or if the UE of the group B detects the target sequence 1 or 3, the UE listens to the PDCCH. Otherwise, the PDCCH is not monitored. Among them, target sequence 1 is a common sequence, and target sequences 2 and 3 are group specific sequences.

Table 4 The mapping of the first signal transmission situation to whether the group A and group B monitor the PDCCH

An example of a rule for PDCCH indicating whether group 1 to group 4 receive PDSCH is shown in Table 5. If the DCI received by the UE of the group 1 indicates that the group 1 needs to receive the PDSCH (that is, the first bit is 1), the UE receives the PDSCH. Otherwise, no PDSCH is received.

Table 5 PDCCH uses 4 bits to indicate whether group 1 to group 4 receive PDSCH

Case 2: The first signal does not indicate grouping information

As shown in Table 6, UEs mapped to a PO are divided into 4 groups: group 1, group 2, group 3, and group 4, where each group includes at least one UE.

Table 6 Grouping situation of UE mapped to a PO

Group 1

Group 2

Group 3

Group 4

The first signal indicates whether the UE mapped to a PO needs to monitor the PDCCH is shown in Table 7. If the UE detects the target sequence 1, the UE monitors the PDCCH. Otherwise, the PDCCH is not monitored.

Table 7: Mapping of the first signal transmission situation to whether the group A and group B monitor the PDCCH

第一信号发送情况The first signal transmission situation	映射到一个PO的UEUE mapped to a PO
发目标序列1Send target sequence 1	监听PDCCHMonitor PDCCH
DTX或者发目标序列2DTX or send target sequence 2	不监听PDCCHDo not monitor PDCCH

An example of a rule for PDCCH indicating whether group 1 to group 4 receive PDSCH is shown in Table 8. If the DCI received by the UE of the group 1 indicates that the group 1 needs to receive the PDSCH (that is, the first bit is 1), the UE receives the PDSCH. Otherwise, the UE does not receive PDSCH.

Table 8 PDCCH uses 4 bits to indicate whether group 1 to group 4 receive PDSCH

It should also be noted here that the target time-frequency resource is located before the paging moment of the corresponding discontinuous reception (DRX) cycle, and the time offset (offset) of the target time-frequency resource from the PO is configured by the network side, or the UE is configured according to Determined by preset rules.

Specifically, the target time-frequency resource is associated with the identity of the terminal or with the grouping information of the terminal; for example, multiple terminals of a PO are divided into N groups, and the target time-frequency resources of each group are different or Orthogonally, the terminals of each group detect the first signal on its corresponding target time-frequency resource; the corresponding relationship between the terminal grouping and the target time-frequency resource is notified to the terminal by the network side (for example, the base station) through signaling, or the terminal Determined according to the mapping relationship defined in the agreement.

It should be further noted that the time slot interval between the target paging PDCCH and the paging PDSCH corresponding to the target paging PDCCH is greater than a preset value, and the preset value is notified by the network side device, or the preset The value is defined by the agreement.

It should also be noted that the information carried in the target sequence in the embodiment of the present invention further includes at least one of the following:

B11. The first indication information used to instruct the terminal to read the system message change;

B12. The second indication information used to instruct the terminal to read the indication information of the commercial mobile warning system and the indication information of the earthquake and tsunami early warning system.

It should be noted here that if the target sequence only carries B11 and/or B12, the terminal does not need to detect the target paging PDCCH.

It should also be noted that, in the embodiment of the present invention, if the indication content of the first signal received by the terminal is inconsistent with the indication content of the target paging PDCCH, the terminal performs the following one:

C11. The terminal does not receive the PDSCH corresponding to the target paging PDCCH;

It should be noted that, because the terminal does not need to detect the subsequent PDSCH, it is beneficial for the terminal to save power.

C12. The terminal receives the PDSCH corresponding to the target paging PDCCH;

C13, depends on the terminal implementation;

That is to say, in this case, the behavior of the terminal side is not defined, and the terminal behavior depends on the specific implementation of the terminal.

It should be further noted that the indication content of the first signal received by the terminal is inconsistent with the indication content of the target paging PDCCH, and includes at least one of the following:

D11. The first signal received by the terminal instructs the terminal to detect the target paging PDCCH, and the DCI in the target paging PDCCH received by the terminal does not include the first information;

For example, the terminal receives the first signal that matches the target sequence, but the DCI-related bits in the target paging PDCCH received by the terminal do not include the terminal identification (UE ID) information or do not include the grouping information where the terminal is located, then this case The indication content indicating that the terminal receives the first signal is inconsistent with the indication content of the target paging PDCCH.

D12. The first signal received by the terminal instructs the terminal to detect the target paging PDCCH, the DCI in the target paging PDCCH received by the terminal does not include the first information, and the DCI in the target paging PDCCH does not indicate system message update;

For example, the terminal receives the first signal matching the target sequence, but the DCI related bits in the target paging PDCCH received by the terminal does not include the UE ID information or the grouping information where the UE is located, and the DCI in the target paging PDCCH The relevant bit does not indicate that the system message is updated, so this situation indicates that the indication content of the first signal received by the terminal is inconsistent with the indication content of the target paging PDCCH.

D13. The first signal received by the terminal indicates system message update, and the DCI in the target paging PDCCH received by the terminal does not indicate system message update;

For example, if the terminal receives the first signal that matches the target sequence of the system message update, but the DCI related bits in the target paging PDCCH do not indicate the system message update, then this situation indicates that the terminal receives the first signal and the indication content is consistent with The indication content of the target paging PDCCH is inconsistent.

It should also be noted that, before the terminal detects the first signal on the target time-frequency resource, if the first parameter of the second signal detected by the terminal is lower than the preset threshold, the terminal performs the following one:

E11. The terminal receives the target paging PDCCH;

That is to say, in this case, the terminal directly receives the target paging PDCCH, regardless of whether the terminal detects the first signal matching the target sequence.

E12. The terminal does not detect the first signal;

That is, in this case, the terminal does not detect the first signal, but directly receives the target paging PDCCH.

It should be noted that the first parameter mentioned above includes: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ) or Signal-to-Noise Ratio (Signal-to-Noise) and interference ratio, SINR); the second signal includes at least one of a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), a synchronization signal and a demodulation reference signal (Demodulation Reference Signal, DMRS).

It should also be noted that the thresholds of indicators such as RSRP, RSRQ or SINR are notified to the terminal by the network side through a system message, for example, the network side is notified through a system information block one (SIB1) message; the terminal detects RSRP, RSRQ or SINR indicators It is an indicator of RSRP, RSRQ or SINR detected once, or a comprehensive value of historical RSRP, RSRQ or SINR indicators, for example, the indicator of RSRP, RSRQ or SINR in a time sliding window; specifically, the relevant indicator of the time sliding window is the network side The terminal is notified through a system message, for example, through a SIB1 message.

It should also be noted that, in order to ensure that the first signal can be received accurately, the terminal needs to obtain the configuration information of the first signal before detecting the first signal on the target time-frequency resource. Specifically, the terminal can use the system message (For example, SIB1 message) After receiving the configuration information of the first signal sent by the network side, the terminal may also determine the configuration information of the first signal according to a protocol agreement.

Specifically, the configuration information includes at least one of the following:

F1, whether to configure the indication information of the first signal;

F2, the instruction information of turning off or turning on the first signal;

F3. Frequency domain resource information of the first signal;

F4. Time-frequency resource information of the first signal;

F5. The pattern of the first signal (pattern);

F6. Power offset information of the first signal compared to the preset signal;

It should be noted that the preset signal includes at least one of a synchronization signal, a CSI-RS, and a DMRS.

The specific implementation of step 12 will be described in detail in different situations as follows.

Case 1: The terminal sequentially detects the first signal, PDCCH, PDSCH, and the detection result of the previous item determines whether to detect the latter one.

Specifically, in this case, the specific implementation of the step 12 is as follows:

Detecting, by the terminal, the first PDCCH corresponding to the first signal;

That is, in this case, the target paging PDCCH corresponds to the first PDCCH.

It should be further noted that in this case, the first PDCCH is the new PDCCH (new PDCCH), that is, the PDCCH that only needs to be detected by the terminal of R17 or a newer version; or the old PDCCH (legacy PDCCH), that is, R15, R16 The terminal needs to detect the PDCCH.

Further, after the terminal detects the first PDCCH corresponding to the first signal, if the DCI of the first PDCCH detected by the terminal includes first information, the terminal receives the first PDCCH scheduled Paging the PDSCH; if the paging PDSCH received by the terminal includes the second information, the terminal initiates random access or reads system messages;

It should be noted here that the second information includes: information corresponding to the terminal identifier.

As shown in Figure 2, it is a schematic diagram of the time sequence relationship of each information in this case. The specific implementation process of this case is as follows:

The terminal detects the first signal (which can be WUS) on the target time-frequency resource. If the detected first signal matches the target sequence, the terminal detects the paging PDCCH (ie, the first PDCCH) corresponding to the first signal; if it is detected If the first signal does not match the target sequence, the terminal does not detect the paging PDCCH corresponding to the first signal.

If the terminal detects the paging PDCCH, and the detected DCI of the paging PDCCH includes information corresponding to its own terminal identification or information corresponding to its own group, the terminal continues to receive the paging PDSCH scheduled by the paging PDCCH, if the terminal If the paging PDCCH is detected, and the DCI of the detected paging PDCCH does not include the information corresponding to its own terminal identifier and the information corresponding to the group where it is located, the terminal does not receive the paging PDSCH scheduled by the paging PDCCH; In the case of paging PDSCH, if the received paging PDSCH carries information corresponding to its own terminal identification, the terminal initiates random access, if the received paging PDSCH does not carry information corresponding to its own terminal identification , The terminal does not initiate random access.

Case 2: The terminal sequentially detects the first signal, PDCCH, the previous detection result determines whether to detect the latter, and the terminal does not detect PDSCH.

Detecting, by the terminal, the first PDCCH corresponding to the first signal;

That is, in this case, the target paging PDCCH corresponds to the first PDCCH.

It should be further noted that, in this case, the first PDCCH is a new PDCCH, that is, a PDCCH that only needs to be detected by terminals of R17 or newer versions; or a legacy PDCCH, that is, a PDCCH that needs to be detected by terminals of R15 and R16.

Further, after the terminal detects the first PDCCH corresponding to the first signal, if the DCI of the first PDCCH detected by the terminal includes the first information, the terminal initiates random access or reads system messages.

It should be noted that, when the terminal detects that the DCI of the first PDCCH includes the first information, it directly initiates random access, that is, at this time, the first PDCCH should carry information for paging PDSCH.

As shown in Figure 3, it is a schematic diagram of the timing relationship of each information in this case. The specific implementation process of this case is as follows:

If the terminal detects the paging PDCCH, and the DCI of the detected paging PDCCH includes information corresponding to its own terminal identification or information corresponding to its own group, the terminal initiates random access; if the terminal detects the paging PDCCH If the DCI does not include information corresponding to its own terminal identifier and information corresponding to its own group, the terminal does not initiate random access.

Case 3: The terminal sequentially detects the first signal, legacy PDCCH and new PDCCH, and the previous detection result determines whether to detect the latter. Among them, the terminal needs to detect the legacy PDCCH and the new PDCCH.

Detecting, by the terminal, the second PDCCH and the third PDCCH corresponding to the first signal;

That is, in this case, the target paging PDCCH corresponds to the second PDCCH and the third PDCCH, where the second PDCCH is the legacy PDCCH, and the third PDCCH is the new PDCCH.

Further, after the terminal detects the second PDCCH and the third PDCCH corresponding to the first signal, if the downlink control information DCI of at least one of the second PDCCH and the third PDCCH is detected by the terminal If the terminal includes the first information, the terminal initiates random access or reads system messages; or, if the DCI of at least one of the second PDCCH and the third PDCCH detected by the terminal includes the first information , It is determined that the terminal receives the paging PDSCH scheduled by the second PDCCH or the third PDCCH; if the paging PDSCH received by the terminal includes the second information, the terminal initiates random access or reads system messages;

It should also be noted that the third PDCCH carries terminal identification information or partial information of the terminal identification related to the paging moment of the terminal, for example, the UE ID is compressed into N bits through a hash function for transmission; wherein, the UE ID It is one of IMSI, IMEI, TMSI, the last 10 bits of 5G-S-TMSI, 5G-S-TMSI, etc., or other types of UE ID; that is, in this case, the terminal needs to use its own UE ID To match the N bits carried by paging DCI to determine whether the paging message is calling itself.

Specifically, the second PDCCH and the third PDCCH are located in the same search space, and further, the terminal monitors the DCI of the third PDCCH at the same monitoring moment as the second PDCCH.

It should also be noted that, in this case, the terminal also needs to obtain short message-related bits in the DCI in the second PDCCH.

It should also be noted that the length of the DCI of the third PDCCH is agreed upon by the protocol or configured by the network side device, and its length may be the same as or different from the length of the DCI of the second PDCCH; specifically, in the third PDCCH The carried paging radio network temporary identifier (P-RNTI) is agreed by the protocol or configured by the network side device.

As shown in Figure 4, it is a schematic diagram of the time sequence relationship of each information in this case. The specific implementation process of this case is as follows:

The terminal detects the first signal (which can be WUS) on the target time-frequency resource. If the detected first signal matches the target sequence, the terminal detects the second PDCCH and the third PDCCH corresponding to the first signal; if the detected first signal is If a signal does not match the target sequence, the terminal does not detect the second PDCCH and the third PDCCH corresponding to the first signal.

If the DCI of at least one of the second PDCCH and the third PDCCH detected by the terminal includes information corresponding to its own terminal identification or information corresponding to its own group, the terminal initiates random access, and if the second PDCCH detected by the terminal If neither the DCI of the third PDCCH nor the information corresponding to its own terminal identification and the information corresponding to its own group are included, the terminal does not initiate random access; or,

If the DCI of at least one of the second PDCCH and the third PDCCH detected by the terminal includes information corresponding to its own terminal identifier or information corresponding to its own group, the terminal continues to receive the paging PDSCH, if the terminal detects the second The DCI of the PDCCH and the third PDCCH does not include information corresponding to its own terminal identification or information corresponding to its own group, the terminal does not receive the paging PDSCH; in the case of the terminal receiving the paging PDSCH, if the received If the paging PDSCH carries information corresponding to its own terminal identifier, the terminal initiates random access. If the received paging PDSCH does not carry information corresponding to its own terminal identifier, the terminal does not initiate random access.

Case 4: The terminal detects the first signal in sequence, legacy PDCCH, new PDCCH and PDSCH. The detection result of the previous item determines whether to detect the latter; among them, the terminal detection first detects the legacy PDCCH, and determines whether to detect the new PDCCH according to the legacy PDCCH detection result. .

Detecting, by the terminal, a second PDCCH corresponding to the first signal;

If the DCI of the second PDCCH detected by the terminal includes the third information, the terminal detects the third PDCCH, and if the DCI of the second PDCCH does not include the third information, the terminal does not detect the third PDCCH.

It should be noted that the third information includes: first information or information indicating detection of the third PDCCH;

It should be further noted that, in this case, the target paging PDCCH corresponds to the second PDCCH and the third PDCCH, where the second PDCCH is the legacy PDCCH, and the third PDCCH is the new PDCCH.

Further, after the terminal detects the third PDCCH, if the DCI of the third PDCCH detected by the terminal includes the first information, the terminal initiates random access or reads system messages; or, if the If the DCI of the third PDCCH detected by the terminal includes the first information, it is determined that the terminal receives the second PDCCH or the paging physical downlink shared channel PDSCH scheduled by the third PDCCH; if the paging PDSCH received by the terminal is If the second information is included, the terminal initiates random access or reads system messages;

It should also be noted that the third PDCCH carries terminal identification information or partial information of the terminal identification related to the paging moment of the terminal, for example, the UE ID is compressed into N bits through a hash function for transmission; wherein, the UE ID It is one of IMSI, IMEI, TMSI, the last 10 bits of 5G-S-TMSI, 5G-S-TMSI, etc., or other types of UE ID; that is, in this case, the terminal needs to use its own UE The ID is matched with the N bits carried by the paging DCI to determine whether the paging message is calling itself.

As shown in Figure 5, it is a schematic diagram of the timing relationship of each information in this case. The specific implementation process of this case is:

The terminal detects the first signal (which can be WUS) on the target time-frequency resource. If the detected first signal matches the target sequence, the terminal detects the second PDCCH corresponding to the first signal; if the detected first signal matches the target sequence The sequence does not match, and the terminal does not detect the second PDCCH corresponding to the first signal.

If the DCI of the second PDCCH detected by the terminal includes information corresponding to its own terminal identifier or information corresponding to its own group, or includes information indicating detection of the third PDCCH, the terminal detects the third PDCCH; otherwise, the terminal does not detect The third PDCCH.

If the DCI of the third PDCCH detected by the terminal includes information related to its own UE ID or information related to the grouping of the UE where it is located, the UE initiates random access; otherwise, the terminal does not initiate random access. or,

If the DCI of the third PDCCH detected by the terminal includes information corresponding to its own terminal identification or information corresponding to the group where it is located, the terminal detects the paging PDSCH; if the DCI of the third PDCCH detected by the terminal does not include information corresponding to its own The terminal does not detect the paging PDSCH for the information corresponding to the terminal identifier or the information corresponding to the group where it is located; if the paging PDSCH received by the terminal carries the information corresponding to its terminal identifier, the terminal initiates random access. The paging PDSCH does not carry information corresponding to its own terminal identification, and the terminal does not initiate random access.

It should also be noted here that the embodiment of the present invention is adapted to the radio resource control (Radio Resource Control, RRC) idle state and the RRC inactive state.

In the embodiment of the present invention, the terminal determines whether it needs to receive paging PDSCH according to the detection results of WUS and PDCCH, where WUS and/or paging PDCCH carries UE ID related information or UE grouping related information, so as to avoid unnecessary PDSCH Receiving, conducive to terminal power saving.

As shown in FIG. 6, an embodiment of the present invention provides a terminal 600, including:

The first detection module 601 is configured to detect the first signal on the target time-frequency resource;

The second detection module 602 is configured to detect the target paging physical downlink control channel PDCCH corresponding to the first signal if the first signal matching the target sequence is detected;

Optionally, the second detection module 602 is configured to:

Detecting the first PDCCH corresponding to the first signal;

Wherein, after the second detection module 602 detects the first PDCCH corresponding to the first signal, the method further includes:

The first receiving module is configured to receive the paging physical downlink shared channel PDSCH scheduled by the first PDCCH if the detected downlink control information DCI of the first PDCCH includes the first information;

The first execution module is configured to initiate random access or read system messages if the received paging PDSCH includes the second information;

Wherein, the second information includes: information corresponding to the terminal identifier.

Optionally, the second detection module 602 is configured to:

Detecting the first PDCCH corresponding to the first signal;

The second execution module is configured to initiate random access or read system messages if the detected downlink control information DCI of the first PDCCH includes the first information.

Optionally, the second detection module 602 is configured to:

Detecting the second PDCCH and the third PDCCH corresponding to the first signal;

Wherein, after the second detection module 602 detects the second PDCCH and the third PDCCH corresponding to the first signal, the method further includes:

The third execution module is configured to initiate random access or read system messages if the detected downlink control information DCI of at least one of the second PDCCH and the third PDCCH includes the first information; or

The fourth execution module is configured to determine to receive the second PDCCH or the third PDCCH scheduling if the detected DCI of at least one of the second PDCCH and the third PDCCH includes first information Paging physical downlink shared channel PDSCH; if the received paging PDSCH includes the second information, initiate random access or read system messages;

Optionally, the second detection module 602 is configured to:

Detecting a second PDCCH corresponding to the first signal;

If the detected downlink control information DCI of the second PDCCH includes third information, the third PDCCH is detected, and the third information includes: the first information or the information indicating the detection of the third PDCCH;

Wherein, after the second detection module 602 detects the third PDCCH, the method further includes:

The fifth execution module is configured to initiate random access or read system messages if the detected DCI of the third PDCCH includes the first information; or

The sixth execution module is configured to determine to receive the second PDCCH or the paging physical downlink shared channel PDSCH scheduled by the third PDCCH if the detected DCI of the third PDCCH includes the first information; If the second information is included in the paging PDSCH, random access is initiated or system messages are read;

Further, the third PDCCH carries terminal identification information related to the paging moment of the terminal, or the third PDCCH carries part of the terminal identification information related to the paging moment of the terminal.

Further, the second PDCCH and the third PDCCH are located in the same search space.

Specifically, the terminal monitors the DCI of the third PDCCH at the same monitoring moment as the second PDCCH.

Further, the terminal further includes:

The obtaining module is configured to obtain short message-related bits in the DCI in the second PDCCH.

Further, the length of the DCI of the third PDCCH is agreed by the protocol or configured by the network side device; the paging radio network temporary identifier P-RNTI carried in the third PDCCH is agreed by the protocol or configured by the network side device.

Specifically, the target sequence carries one of the following information:

Information corresponding to the terminal identification;

Information corresponding to the terminal group.

Further, the target sequence includes at least one common sequence and one group specific sequence.

Specifically, when the target sequence and the target paging PDCCH both contain information corresponding to the terminal group, the information corresponding to the terminal group included in the target paging PDCCH is the information corresponding to the terminal group included in the target sequence. A subset or subgroup of information corresponding to the group.

Specifically, the target time-frequency resource is located before the paging moment of the corresponding discontinuous reception DRX cycle.

Specifically, the time slot interval between the target paging PDCCH and the paging PDSCH corresponding to the target paging PDCCH is greater than a preset value, the preset value is notified by the network side device, or the preset value is determined by Agreement definition.

Specifically, the information carried in the target sequence further includes at least one of the following:

The first indication information used to instruct the terminal to read the system message change;

The second indication information used to instruct the terminal to read the indication information of the commercial mobile warning system and the indication information of the earthquake and tsunami warning system.

Specifically, if the indication content of the first signal received by the terminal is inconsistent with the indication content of the target paging PDCCH, the terminal performs one of the following:

Not receiving the PDSCH corresponding to the target paging PDCCH;

Receiving the PDSCH corresponding to the target paging PDCCH;

Depends on the terminal implementation.

Further, the indication content of the first signal received by the terminal is inconsistent with the indication content of the target paging PDCCH, and includes at least one of the following:

The first signal received by the terminal indicates that the terminal detects the target paging PDCCH, and the DCI in the target paging PDCCH received by the terminal does not include the first information;

The first signal received by the terminal indicates that the terminal detects the target paging PDCCH, the DCI in the target paging PDCCH received by the terminal does not include the first information, and the DCI in the target paging PDCCH does not indicate system message update;

The first signal received by the terminal indicates that the system message is updated, and the DCI in the target paging PDCCH received by the terminal does not indicate that the system message is updated.

Specifically, before the first detection module 601 detects the first signal on the target time-frequency resource, the method further includes:

The seventh execution module is configured to, if the first parameter of the second signal detected by the terminal is lower than a preset threshold, the terminal executes one of the following:

The terminal receives the target paging PDCCH;

The terminal does not detect the first signal;

Wherein, the first parameter includes: reference signal received power, reference signal received quality or signal-to-interference noise ratio, and the second signal includes at least one of channel state information reference signal CSI-RS, synchronization signal and demodulation reference signal DMRS One item.

Optionally, before the first detection module 601 detects the first signal on the target time-frequency resource, the method further includes:

The configuration acquisition module is configured to receive the configuration information of the first signal through a system message, or determine the configuration information of the first signal according to a protocol agreement;

Wherein, the configuration information includes at least one of the following:

Whether to configure the indication information of the first signal;

Instruction information to turn off or turn on the first signal;

Frequency domain resource information of the first signal;

Time-frequency resource information of the first signal;

The pattern style of the first signal;

Power offset information of the first signal compared to the preset signal;

Wherein, the preset signal includes at least one of a synchronization signal, a channel state information reference signal CSI-RS, and a demodulation reference signal DMRS.

Specifically, the target time-frequency resource is associated with the identity of the terminal or with the grouping information of the terminal. For example, from the perspective of the network side, the terminals associated with the same PO are divided into N (N>1) terminal groups, and the target time-frequency resources associated with the PO are also divided into M (M>1) terminals. Resource groups, and then map N terminal groups to M resource groups through a certain mapping rule; the simplest method is M=N, at this time, N terminal groups and N resource groups have a one-to-one correspondence; correspondingly Yes, from the perspective of the terminal, the terminal detects the first signal on the resource group corresponding to the terminal group where it is located, and does not need to detect the first signal on other resource groups. Wherein, the mapping rule for mapping N terminal groups to M resource groups is defined by the protocol or notified to the terminal by the network side through some kind of signaling, such as broadcast signaling. At this time, the first signal on a certain target time-frequency resource may not carry or may carry first information; wherein, the first information includes: information corresponding to a terminal identifier or information corresponding to a terminal group.

It should be noted that the terminal embodiment is a terminal corresponding to the above-mentioned information detection method applied to the terminal, and all the implementation manners of the above-mentioned embodiment are applicable to the terminal embodiment, and can also achieve the same technical effect.

FIG. 7 is a schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present invention.

The terminal 70 includes, but is not limited to: a radio frequency unit 710, a network module 720, an audio output unit 730, an input unit 740, a sensor 750, a display unit 760, a user input unit 770, an interface unit 780, a memory 790, a processor 711, and a power supply 712 and other parts. Those skilled in the art can understand that the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange different components. In the embodiment of the present invention, terminals include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.

Wherein, the processor 711 is configured to detect the first signal on the target time-frequency resource;

In the embodiment of the present invention, the terminal first detects the first sequence-based signal on the target time-frequency resource. If the first signal matching the target sequence is detected, the terminal detects the paging PDCCH corresponding to the first signal, In this way, the power consumption of the terminal in the paging detection process can be reduced, which is beneficial to the terminal to save power consumption.

It should be understood that, in this embodiment of the present invention, the radio frequency unit 710 can be used for receiving and sending signals during the process of sending and receiving information or talking. Specifically, after receiving the downlink data from the network side device, it is processed by the processor 711; in addition, , Send the uplink data to the network side device. Generally, the radio frequency unit 710 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 radio frequency unit 710 can also communicate with the network and other devices through a wireless communication system.

The terminal provides users with wireless broadband Internet access through the network module 720, such as helping users to send and receive emails, browse web pages, and access streaming media.

The audio output unit 730 may convert the audio data received by the radio frequency unit 710 or the network module 720 or stored in the memory 790 into audio signals and output them as sounds. Moreover, the audio output unit 730 may also provide audio output related to a specific function performed by the terminal 70 (for example, call signal reception sound, message reception sound, etc.). The audio output unit 730 includes a speaker, a buzzer, a receiver, and the like.

The input unit 740 is used to receive audio or video signals. The input unit 740 may include a graphics processing unit (GPU) 741 and a microphone 742. The graphics processing unit 741 is used to capture still pictures or video images obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The data is processed. The processed image frame may be displayed on the display unit 760. The image frames processed by the graphics processor 741 may be stored in the memory 790 (or other storage medium) or sent via the radio frequency unit 710 or the network module 720. The microphone 742 can receive sound, and can process such sound as audio data. The processed audio data can be converted into a format that can be sent to the mobile communication network side device via the radio frequency unit 710 for output in the case of a telephone call mode.

The terminal 70 also includes at least one sensor 750, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 761 according to the brightness of the ambient light. The proximity sensor can close the display panel 761 and/or when the terminal 70 is moved to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify terminal posture (such as horizontal and vertical screen switching, related games, Magnetometer posture calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 750 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared Sensors, etc., will not be repeated here.

The display unit 760 is used to display information input by the user or information provided to the user. The display unit 760 may include a display panel 761, and the display panel 761 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

The user input unit 770 may be used to receive inputted number or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 770 includes a touch panel 771 and other input devices 772. The touch panel 771, also known as a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 771 or near the touch panel 771. operate). The touch panel 771 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 711, the command sent by the processor 711 is received and executed. In addition, the touch panel 771 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 771, the user input unit 770 may also include other input devices 772. Specifically, other input devices 772 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.

Further, the touch panel 771 may be covered on the display panel 761. When the touch panel 771 detects a touch operation on or near it, it transmits it to the processor 711 to determine the type of the touch event, and then the processor 711 responds to the touch The type of event provides corresponding visual output on the display panel 761. Although in FIG. 7, the touch panel 771 and the display panel 761 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 771 and the display panel 761 may be integrated. Realize the input and output functions of the terminal, the specifics are not limited here.

The interface unit 780 is an interface for connecting an external device and the terminal 70. For example, the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (Input/Output, I/O) port, video I/O port, headphone port, etc. The interface unit 780 may be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the terminal 70 or may be used to communicate between the terminal 70 and the external device. Transfer data between.

The memory 790 can be used to store software programs and various data. The memory 790 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 (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc. In addition, the memory 790 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.

The processor 711 is the control center of the terminal. It uses various interfaces and lines to connect various parts of the entire terminal. Various functions of the terminal and processing data, so as to monitor the terminal as a whole. The processor 711 may include one or more processing units; preferably, the processor 711 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface and application programs, etc., the modem The processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 711.

The terminal 70 may also include a power source 712 (such as a battery) for supplying power to various components. Preferably, the power source 712 may be logically connected to the processor 711 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.

In addition, the terminal 70 includes some functional modules not shown, which will not be repeated here.

It should also be noted that the processor 710 is also configured to implement other processes in the transmission configuration method applied to the first terminal in the foregoing embodiment, and details are not described herein again.

Preferably, the embodiment of the present invention also provides a terminal, including a processor 711, a memory 790, a program or instruction stored on the memory 790 and running on the processor 711, and the program or instruction is executed by the processor 711 Each process of the embodiment of the information detection method applied to the terminal side is realized at a time, and the same technical effect can be achieved. To avoid repetition, details are not described here.

The embodiment of the present invention also provides a readable storage medium with a program or instruction stored on the readable storage medium. When the program or instruction is executed by a processor, each process of the embodiment of the information detection method applied to the terminal side is implemented, and can be To achieve the same technical effect, in order to avoid repetition, I will not repeat them here. Wherein, the computer readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

As shown in FIG. 8, an embodiment of the present invention also provides an information sending method, which is applied to a network side device, and includes:

Step 801: When the terminal needs to be paged or there is a system information change, send a first signal on the target time-frequency resource;

Step 802: After sending the first signal, send the target paging physical downlink control channel PDCCH corresponding to the first signal;

Further, the target time-frequency resource is located before the paging moment of the corresponding discontinuous reception DRX cycle.

Further, the target time-frequency resource is associated with the identification of the terminal or with the grouping information of the terminal.

It should be noted that all the descriptions of the network-side equipment in the foregoing embodiments are applicable to the embodiments of the information sending method, and the same technical effects can be achieved, and will not be repeated here.

As shown in FIG. 9, an embodiment of the present invention also provides a network side device 900, including:

The first sending module 901 is configured to send the first signal on the target time-frequency resource when the terminal needs to be paged or there is a system information change;

The second sending module 902 is configured to send the target paging physical downlink control channel PDCCH corresponding to the first signal after the first signal is sent;

Preferably, the embodiment of the present invention also provides a network side device, including a processor, a memory, a program or instruction stored in the memory and running on the processor, and the program or instruction implements an application when executed by the processor. The various processes of the embodiment of the information sending method on the network side device side can achieve the same technical effect. In order to avoid repetition, the details are not repeated here.

The embodiment of the present invention also provides a readable storage medium, and a program or instruction is stored on the computer readable storage medium. When the program or instruction is executed by a processor, each process of the information sending method embodiment applied to the network side device side is realized , And can achieve the same technical effect, in order to avoid repetition, I will not repeat it here. Wherein, the computer readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

FIG. 10 is a structural diagram of a network side device according to an embodiment of the present invention, which can realize the details of the above-mentioned information sending method and achieve the same effect. As shown in FIG. 10, the network side device 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, and a bus interface, where:

The processor 1001 is configured to read a program in the memory 1003 and execute the following process:

When the terminal needs to be paged or there is a change in system information, the first signal is sent on the target time-frequency resource through the transceiver 1002; after the first signal is sent, the target page corresponding to the first signal is sent. Call the physical downlink control channel PDCCH;

In FIG. 10, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1001 and various circuits of the memory represented by the memory 1003 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further description will be given herein. The bus interface provides the interface. The transceiver 1002 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.

Among them, the network side device can be a base station (Base Transceiver Station, BTS) in Global System of Mobile communication (GSM) or Code Division Multiple Access (CDMA), or it can be a broadband code division multiple access (BTS). The base station (NodeB, NB) in the Wideband Code Division Multiple Access (WCDMA) can also be an evolved base station (Evolved Node B, eNB or eNodeB) in LTE, or a relay station or access point, or the fifth generation in the future (5 ^th Generation, 5G) base stations in the network, this is not limited.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements that are not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other same elements in the process, method, article, or device that includes the element.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the present disclosure.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which is not repeated here.

In the embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) execute the method described in each embodiment of the present invention.

A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by controlling the relevant hardware through a computer program. The program can be stored in a computer readable storage medium. When executed, it may include the procedures of the above-mentioned method embodiments. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.

It can be understood that the embodiments described in the embodiments of the present disclosure can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, and sub-units can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Equipment (DSP Device, DSPD) ), Programmable Logic Device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, used to implement this disclosure Other electronic units or a combination of the functions described above.

For software implementation, the technology described in the embodiments of the present disclosure can be implemented through modules (for example, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure. The software codes can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.

The above are the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, a number of improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications are also included in the present invention. Within the scope of protection of the invention.

Claims

An information detection method, applied to a terminal, includes:

Detecting the first signal on the target time-frequency resource;

If the first signal matching the target sequence is detected, then the target paging physical downlink control channel PDCCH corresponding to the first signal is detected;

Wherein, the first signal is a sequence-based signal, and at least one of the first signal and the target paging PDCCH carries first information;

Wherein, the first information includes: information corresponding to a terminal identifier or information corresponding to a terminal group.
The information detection method according to claim 1, wherein the detecting the target paging physical downlink control channel PDCCH corresponding to the first signal comprises:

Detecting the first PDCCH corresponding to the first signal;

Wherein, after the detecting the first PDCCH corresponding to the first signal, the method further includes:

If the detected downlink control information DCI of the first PDCCH includes the first information, receiving the paging physical downlink shared channel PDSCH scheduled by the first PDCCH;

If the received paging PDSCH includes the second information, initiate random access or read system messages;

Wherein, the second information includes: information corresponding to the terminal identifier.
The information detection method according to claim 1, wherein the detecting the target paging physical downlink control channel PDCCH corresponding to the first signal comprises:

Detecting the first PDCCH corresponding to the first signal;

Wherein, after the detecting the first PDCCH corresponding to the first signal, the method further includes:

If the detected downlink control information DCI of the first PDCCH includes the first information, random access is initiated or a system message is read.
The information detection method according to claim 1, wherein the detecting the target paging physical downlink control channel PDCCH corresponding to the first signal comprises:

Detecting the second PDCCH and the third PDCCH corresponding to the first signal;

Wherein, after the detecting the second PDCCH and the third PDCCH corresponding to the first signal, the method further includes:

If the detected downlink control information DCI of at least one of the second PDCCH and the third PDCCH includes the first information, initiate random access or read system messages; or

If the detected DCI of at least one of the second PDCCH and the third PDCCH includes the first information, it is determined to receive the paging physical downlink shared channel scheduled by the second PDCCH or the third PDCCH PDSCH; if the received paging PDSCH includes the second information, initiate random access or read system messages;

Wherein, the second information includes: information corresponding to the terminal identifier.
The information detection method according to claim 1, wherein the detecting the target paging physical downlink control channel PDCCH corresponding to the first signal comprises:

Detecting a second PDCCH corresponding to the first signal;

If the detected downlink control information DCI of the second PDCCH includes third information, the third PDCCH is detected, and the third information includes: the first information or the information indicating the detection of the third PDCCH;

Wherein, after the third PDCCH is detected, it further includes:

If the detected DCI of the third PDCCH includes the first information, initiate random access or read system messages; or

If the detected DCI of the third PDCCH includes the first information, it is determined to receive the second PDCCH or the paging physical downlink shared channel PDSCH scheduled by the third PDCCH; if the received paging PDSCH includes the first information 2. Information, initiate random access or read system messages;

Wherein, the second information includes: information corresponding to the terminal identifier.
The information detection method according to claim 4 or 5, wherein the third PDCCH carries terminal identification information related to the paging moment of the terminal, or the third PDCCH carries information related to the paging moment of the terminal Part of the terminal identification information.
The information detection method according to claim 4 or 5, wherein the second PDCCH and the third PDCCH are located in the same search space.
The information detection method according to claim 7, wherein the terminal monitors the DCI of the third PDCCH at the same monitoring moment as the second PDCCH.
The information detection method according to claim 4 or 5, further comprising:

Acquire short message-related bits in the DCI in the second PDCCH.
The information detection method according to claim 4 or 5, wherein the length of the DCI of the third PDCCH is agreed upon by a protocol or configured by a network side device; the paging radio network temporary identifier P-RNTI carried in the third PDCCH It is agreed by the agreement or configured by the network side equipment.
The information detection method according to any one of claims 1 to 5, wherein the target sequence carries one of the following information:

Information corresponding to the terminal identification;

Information corresponding to the terminal group.
The information detection method according to claim 11, wherein the target sequence includes at least one common sequence and one group specific sequence.
The information detection method according to any one of claims 1 to 5, wherein, when the target sequence and the target paging PDCCH both contain information corresponding to the terminal group, the information contained in the target paging PDCCH The information corresponding to the terminal grouping is a subset or subgroup of the information corresponding to the terminal grouping included in the target sequence.
The information detection method according to any one of claims 1 to 5, wherein the target time-frequency resource is located before the paging moment of the corresponding discontinuous reception DRX cycle.
The information detection method according to any one of claims 1 to 5, wherein the time slot interval between the target paging PDCCH and the paging PDSCH corresponding to the target paging PDCCH is greater than a preset value, and The preset value is notified by the network side device, or the preset value is defined by a protocol.
The information detection method according to any one of claims 1 to 5, wherein the information carried in the target sequence further includes at least one of the following:

The first indication information used to instruct the terminal to read the system message change;

The second indication information used to instruct the terminal to read the indication information of the commercial mobile warning system and the indication information of the earthquake and tsunami warning system.
The information detection method according to any one of claims 1 to 5, wherein if the indication content of the first signal received by the terminal is inconsistent with the indication content of the target paging PDCCH, the terminal performs one of the following:

Not receiving the PDSCH corresponding to the target paging PDCCH;

Receiving the PDSCH corresponding to the target paging PDCCH;

Depends on the terminal implementation.
The information detection method according to claim 17, wherein the indication content of the first signal received by the terminal is inconsistent with the indication content of the target paging PDCCH, and includes at least one of the following:

The first signal received by the terminal indicates that the terminal detects the target paging PDCCH, and the DCI in the target paging PDCCH received by the terminal does not include the first information;

The first signal received by the terminal indicates that the terminal detects the target paging PDCCH, the DCI in the target paging PDCCH received by the terminal does not include the first information, and the DCI in the target paging PDCCH does not indicate system message update;

The first signal received by the terminal indicates that the system message is updated, and the DCI in the target paging PDCCH received by the terminal does not indicate that the system message is updated.
The information detection method according to claim 1, wherein before said detecting the first signal on the target time-frequency resource, the method further comprises:

If the first parameter of the second signal detected by the terminal is lower than the preset threshold, the terminal performs one of the following:

The terminal receives the target paging PDCCH;

The terminal does not detect the first signal;

Wherein, the first parameter includes: reference signal received power, reference signal received quality or signal-to-interference noise ratio, and the second signal includes at least one of channel state information reference signal CSI-RS, synchronization signal and demodulation reference signal DMRS One item.
The information detection method according to claim 1, wherein before said detecting the first signal on the target time-frequency resource, the method further comprises:

Receiving the configuration information of the first signal through a system message, or determining the configuration information of the first signal according to a protocol agreement;

Wherein, the configuration information includes at least one of the following:

Whether to configure the indication information of the first signal;

Instruction information to turn off or turn on the first signal;

Frequency domain resource information of the first signal;

Time-frequency resource information of the first signal;

The pattern style of the first signal;

Power offset information of the first signal compared to the preset signal;

Wherein, the preset signal includes at least one of a synchronization signal, a channel state information reference signal CSI-RS, and a demodulation reference signal DMRS.
The information detection method according to claim 1, wherein the target time-frequency resource is associated with an identification of the terminal or with grouping information of the terminal.
An information sending method, applied to a network side device, includes:

When the terminal needs to be paged or there is a system information change, sending the first signal on the target time-frequency resource;

After sending the first signal, send the target paging physical downlink control channel PDCCH corresponding to the first signal;

Wherein, the first signal is a sequence-based signal, and at least one of the first signal and the target paging PDCCH carries first information;

Wherein, the first information includes: information corresponding to a terminal identifier or information corresponding to a terminal group.
A terminal, including:

The first detection module is configured to detect the first signal on the target time-frequency resource;

The second detection module is configured to detect the target paging physical downlink control channel PDCCH corresponding to the first signal if the first signal matching the target sequence is detected;

Wherein, the first signal is a sequence-based signal, and at least one of the first signal and the target paging PDCCH carries first information;

Wherein, the first information includes: information corresponding to a terminal identifier or information corresponding to a terminal group.
The terminal according to claim 23, wherein the second detection module is configured to:

Detecting the first PDCCH corresponding to the first signal;

Wherein, after the second detection module detects the first PDCCH corresponding to the first signal, the method further includes:

The first receiving module, if the detected downlink control information DCI of the first PDCCH includes the first information, receive the paging physical downlink shared channel PDSCH scheduled by the first PDCCH;

The first execution module is configured to initiate random access or read system messages if the received paging PDSCH includes the second information;

Wherein, the second information includes: information corresponding to the terminal identifier.
The terminal according to claim 23, wherein the second detection module is configured to:

Detecting the first PDCCH corresponding to the first signal;

Wherein, after the second detection module detects the first PDCCH corresponding to the first signal, the method further includes:

The second execution module is configured to initiate random access or read system messages if the detected downlink control information DCI of the first PDCCH includes the first information.
The terminal according to claim 23, wherein the second detection module is configured to:

Detecting the second PDCCH and the third PDCCH corresponding to the first signal;

Wherein, after the second detection module detects the second PDCCH and the third PDCCH corresponding to the first signal, the method further includes:

The third execution module is configured to initiate random access or read system messages if the detected downlink control information DCI of at least one of the second PDCCH and the third PDCCH includes the first information; or

The fourth execution module is configured to determine to receive the second PDCCH or the third PDCCH scheduling if the detected DCI of at least one of the second PDCCH and the third PDCCH includes first information Paging physical downlink shared channel PDSCH; if the received paging PDSCH includes the second information, initiate random access or read system messages;

Wherein, the second information includes: information corresponding to the terminal identifier.
The terminal according to claim 23, wherein the second detection module is configured to:

Detecting a second PDCCH corresponding to the first signal;

If the detected downlink control information DCI of the second PDCCH includes third information, the third PDCCH is detected, and the third information includes: the first information or the information indicating the detection of the third PDCCH;

Wherein, after the second detection module detects the third PDCCH, the method further includes:

The fifth execution module is configured to initiate random access or read system messages if the detected DCI of the third PDCCH includes the first information; or

The sixth execution module is configured to determine to receive the second PDCCH or the paging physical downlink shared channel PDSCH scheduled by the third PDCCH if the detected DCI of the third PDCCH includes the first information; if receiving If the second information is included in the paging PDSCH, random access is initiated or system messages are read;

Wherein, the second information includes: information corresponding to the terminal identifier.
A terminal, comprising: a memory, a processor, and a program or instruction stored on the memory and capable of running on the processor, the program or instruction being executed by the processor realizes any one of claims 1 to 21 The steps of the information detection method.
A network side device, including:

The first sending module is configured to send the first signal on the target time-frequency resource when the terminal needs to be paged or there is a system information change;

The second sending module is configured to send the target paging physical downlink control channel PDCCH corresponding to the first signal after the first signal is sent;

Wherein, the first signal is a sequence-based signal, and at least one of the first signal and the target paging PDCCH carries first information;

Wherein, the first information includes: information corresponding to a terminal identifier or information corresponding to a terminal group.
A network side device, comprising: a memory, a processor, and a program or instruction stored on the memory and capable of running on the processor, and the program or instruction is executed by the processor to realize the information according to claim 22 The steps of the sending method.
A readable storage medium having a program or instruction stored on the readable storage medium, and when the program or instruction is executed by a processor, it implements the steps or steps of the information detection method according to any one of claims 1 to 21 The steps of the information transmission method according to claim 22.
A computer software product, the computer software product is stored in a non-volatile storage medium, and the software product is configured to be executed by at least one processor to implement any one of claims 1 to 21 The steps of the information detection method or the steps of the information transmission method according to claim 22.
A terminal configured to execute the steps of the information detection method according to any one of claims 1 to 21.
A network side device configured to execute the steps of the information sending method according to claim 22.