CN110012523B

CN110012523B - Method and apparatus for wireless communication

Info

Publication number: CN110012523B
Application number: CN201810012582.3A
Authority: CN
Inventors: 姜大洁; 潘学明; 陈力; 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-01-05
Filing date: 2018-01-05
Publication date: 2021-02-19
Anticipated expiration: 2038-01-05
Also published as: CN110012523A

Abstract

The embodiment of the invention discloses a wireless communication method and a device, wherein the method comprises the following steps: detecting a first target advance indication signal, the first target advance indication signal being a sequence-based signal; and when the first target advanced indication signal indicates that target Physical Downlink Control Channel (PDCCH) monitoring is performed, determining the format of the target PDCCH according to the sequence format of the first target advanced indication signal, wherein the target PDCCH is a PDCCH related to the first target advanced indication signal. The method of the embodiment of the invention can reduce the blind detection times of the terminal equipment on the PDCCH and reduce the electric quantity consumption of the terminal equipment.

Description

Method and apparatus for wireless communication

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for wireless communication.

Background

The current communication system configures a preconfigured time for detecting a Paging signal for an Idle terminal device, and the Idle terminal device blindly detects a PDCCH corresponding to a Paging-Radio Network Temporary Identity (P-RNTI) in the preconfigured time. Configuring a Discontinuous Reception (DRX) Cycle (Cycle) for the terminal device in the connected state, wherein the DRX Cycle comprises an active period (On Duration) and a dormant period (Opportunity for DRX): in the On Duration, the terminal device monitors and receives the PDCCH, and in the Opportunity for DRX, the terminal device sleeps or does not monitor the PDCCH to reduce power consumption.

Although in order to further reduce the power consumption of the terminal device an early indication signal is introduced. However, if the indication signal indicates the terminal device to blindly detect the Paging signal or the PDCCH in advance, the terminal device needs to blindly detect multiple PDCCH blind detection candidate sets, and still needs to consume a large amount of power of the terminal device.

Disclosure of Invention

The embodiment of the invention aims to provide a wireless communication method and equipment, so as to solve the problem that a terminal device needs to consume a large amount of electricity to monitor a PDCCH.

In a first aspect, a method for wireless communication is provided, which is applied to a terminal device, and includes:

detecting a first target advance indication signal, the first target advance indication signal being a sequence-based signal;

and when the first target advanced indication signal indicates that target Physical Downlink Control Channel (PDCCH) monitoring is performed, determining the format of the target PDCCH according to the sequence format of the first target advanced indication signal, wherein the target PDCCH is a PDCCH related to the first target advanced indication signal.

In a second aspect, a method for wireless communication is provided, which is applied to a network device, and includes:

sending a first target advance indication signal to a terminal device, wherein the first target advance indication signal is a signal based on a sequence, the first target advance indication signal is used for determining a format of a target PDCCH (physical downlink control channel) according to a sequence format of the first target advance indication signal when the terminal device determines that the first target advance indication signal indicates to monitor a PDCCH (physical downlink control channel), and the target PDCCH is a PDCCH related to the first target advance indication signal.

In a third aspect, a terminal device is provided, which includes:

a first processing module, configured to detect a first target early indication signal, where the first target early indication signal is a sequence-based signal;

and a second processing module, configured to determine, when the first target advanced indication signal indicates to perform target physical downlink control channel PDCCH monitoring, a format of the target PDCCH according to a sequence format of the first target advanced indication signal, where the target PDCCH is a PDCCH related to the first target advanced indication signal.

In a fourth aspect, a network device is provided, the network device comprising:

the receiving and sending module is configured to send a first target advanced indication signal to a terminal device, where the first target advanced indication signal is a signal based on a sequence, and the first target advanced indication signal is used by the terminal device to determine a format of a target PDCCH according to a sequence format of the first target advanced indication signal when it is determined that the first target advanced indication signal indicates that target physical downlink control channel PDCCH monitoring is performed, and the target PDCCH is a PDCCH related to the first target advanced indication signal.

In a fifth aspect, a terminal device is provided, the terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of wireless communication according to the first aspect.

In a sixth aspect, a network device is provided, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of wireless communication according to the second aspect.

In a seventh aspect, a computer-readable storage medium is provided, characterized in that the computer-readable storage medium stores thereon a computer program, which when executed by a processor implements the steps of the method for wireless communication according to the first aspect.

In an eighth aspect, a computer-readable storage medium is provided, wherein a computer program is stored on the computer-readable storage medium, which computer program, when executed by a processor, performs the steps of the method of wireless communication according to the second aspect

In the embodiment of the invention, when the terminal equipment determines that the target behavior indicated by the target advanced indication signal is to monitor the target Physical Downlink Control Channel (PDCCH), the format of the target PDCCH is determined according to the target advanced indication signal, and then the format of the PDCCH to be monitored is determined before the PDCCH monitoring is carried out, so that blind detection on all PDCCHs in a PDCCH blind detection candidate set is avoided, the blind detection times of the terminal equipment on the PDCCH are reduced, and the power consumption of the terminal equipment is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic flow diagram of a method of wireless communication in accordance with one embodiment of the present invention.

Fig. 2 is a schematic flow diagram of a method of wireless communication in accordance with another embodiment of the present invention.

Fig. 3 is another schematic flow diagram of a method of wireless communication in accordance with another embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme of the invention can be applied to various communication systems, such as: global System for Mobile communications (GSM), Code Division Multiple Access (CDMA) System, Wideband Code Division Multiple Access (WCDMA) System, General Packet Radio Service (GPRS) System, Long Term Evolution (LTE)/enhanced Long Term Evolution (LTE-a) System, New Radio (NR) System, etc.

A Terminal device (UE), which may also be referred to as a Mobile Terminal (Mobile Terminal), a Mobile User Equipment (UE), or the like, may communicate with one or more core networks via a Radio Access Network (RAN, for example), and the User device may be a Mobile Terminal, such as a Mobile phone (or a "cellular" phone) and a computer having a Mobile Terminal, such as a portable, pocket, handheld, computer-included, or vehicle-mounted Mobile device, which exchange language and/or data with the Radio Access Network.

The network device is a device deployed in a radio access network device and configured to provide a radio communication function for a terminal device, where the network device may be a Base Station, and the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (eNB or e-NodeB) in LTE, or a 5G Base Station (gNB).

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Fig. 1 illustrates a method of wireless communication according to one embodiment of the invention. As shown in fig. 1, the method 100 includes:

s110, detecting a first target advance indication signal, wherein the first target advance indication signal is a signal based on a sequence.

It should be noted that the target advance indication signal in S110 may be a Wake-up signal (WUS) in the existing communication protocol or in the discussion of the standardization organization or a sleep signal (Go-to-sleep signal) in the existing communication protocol. The target-ahead signal is a Sequence-based signal, and the Sequence may be, for example, a ZC Sequence (Zadoff-off Sequence), an m Sequence, a Gold Sequence, or a Computer Generated Sequence (CGS). And the target-early indication signal is a signal based on a sequence, which may be understood as the target-early indication signal itself being a sequence, or the target-early indication signal may be transmitted in the form of a sequence, or may be understood as the target-early indication signal being carried on a sequence.

In this embodiment of the present invention, optionally, the sequence format of the first target early indication signal is characterized by at least one of the following parameters: a root sequence of the first target early indication signal, a scrambling sequence of the first target early indication signal, a cyclic shift of the first target early indication signal, a sequence type of the first target early indication signal, a time-frequency domain resource occupied by the first target early indication signal, a transmission power of the first target early indication signal, and a number of repetitions of the first target early indication signal. That is, the early indication signals of different sequence formats differ by at least one of: root sequence, scrambling sequence, cyclic shift, sequence type, occupied time-frequency domain resource, transmission power and repetition number. And it can be understood that, since the first target early indication signal may be one of multiple early indication signals, the terminal device needs to perform detection in a blind detection manner when detecting the first target early indication signal.

Further, different parameters of the sequence format for characterizing the first target early indication signal have a preset corresponding relationship. It is understood that the preset correspondence between different parameters for characterizing the sequence format of the first target early indication signal may be preset by a protocol or configured by the network device to the terminal device. The network device may configure the preset correspondence for the terminal device through the system message.

For example, the number of repetitions of the first target early indication signal has a predetermined correspondence with the scrambling sequence of the first target early indication signal, or different numbers of repetitions of the first target early indication signal correspond to different scrambling sequences. In this case, after the terminal device determines the scrambling sequence of the first target early indication signal, the number of repetitions of the first target early indication signal may be determined, thereby reducing the complexity of the terminal for detecting the first target early indication signal.

For example, as shown in table 1, there are two sequence formats of the first target early indicator signal, where the sequence type of the sequence format 1 is a ZC sequence, the scrambling sequence is Gold sequence 1, the basic time domain Resource is 11 OFDM symbols after one subframe, the basic time domain Resource is one Physical Resource Block (PRB), and the sequence is not repeated in time, that is, only occupies one subframe. The sequence type of the sequence format 2 is a ZC sequence, the scrambling sequence is a Gold sequence 2, the basic time domain resource is 11 OFDM symbols behind one subframe, the basic time-frequency domain unit is one PRB, and the sequence is repeated 10 times in time, that is, occupies 10 subframes. The terminal equipment performs blind detection on the advanced indication signal, if the first target advanced indication signal is detected through the Gold sequence 1, the terminal equipment determines that the repetition frequency of the first target advanced indication signal is 1, and the terminal equipment cannot detect the first target advanced indication signal at the subsequent time. If the first target early indication signal is detected on 6 time slots through the Gold sequence 2, the terminal device determines that the repetition time of the first target early indication signal is 10, and 4 subsequent time slots are also transmitting the first target early indication signal, at this time, the terminal device may choose not to continue to detect the first target early indication signal on the subsequent time slots, thereby reducing the complexity of the terminal for detecting the first target early indication signal.

TABLE 1

Sequence format	ScramblingSequence of	Number of repetitions
			1	Gold sequence 1	1
2	Gold sequence 2	10

In the embodiment of the present invention, optionally, the terminal device determines the Maximum repetition number or the Maximum Duration (Maximum Duration) of the advance indication signal according to the system message/Msg 4 message/RRC message/DCI/MAC CE and the like sent by the network device. Or the maximum repetition number of the early indication signal and Rmax (the maximum repetition number of the user-specific PDCCH) have a corresponding relationship, and the terminal device can obtain the maximum repetition number of the early indication signal according to Rmax and the corresponding relationship.

Further, the Actual repetition times or the Actual durations (Actual durations) of the advanced indication signals of different terminal devices may be notified to the terminal device by the network device through a system message/Msg 4 message/RRC message/DCI/MAC CE, and the terminal device determines the Actual repetition times or the Actual durations of the advanced indication signals according to the received message sent by the network device. Or the actual repetition number of the early indication signal and R (the actual repetition number of the user-specific PDCCH) have a corresponding relation, and the terminal equipment can obtain the actual repetition number of the early indication signal according to R and the corresponding relation. Or the terminal equipment detects the advanced indication signal in a blind detection mode, so as to determine the actual repetition times or the actual duration of the advanced indication signal.

S120, when the first target advanced indication signal indicates to perform target Physical Downlink Control Channel (PDCCH) monitoring, determining the format of the target PDCCH according to the sequence format of the first target advanced indication signal, wherein the target PDCCH is a PDCCH related to the first target advanced indication signal.

It should be noted that, the target PDCCH is a PDCCH related to the first target-early-indication signal, which may be understood as the PDCCH that the terminal device needs to monitor last time when the first target-early-indication signal indicates the terminal device to perform the operation of monitoring the PDCCH. For example, the terminal device may calculate the starting time of the target PDCCH according to the starting or ending time of the first target advance indication signal and a preset time interval. The preset time interval is the time interval from the starting or ending time of the target advance indicator to the starting time of the target PDCCH. The target PDCCH here may be a Paging PDCCH or a PDCCH other than the Paging PDCCH.

It should be further noted that, if the target behavior is to perform dormancy, the terminal device continues dormancy and does not perform monitoring of the target PDCCH.

It can be understood that, after the terminal device determines the format of the target PDCCH according to the first target advance indication signal in S120, monitoring of the target PDCCH may be performed according to the format of the target PDCCH.

Optionally, in some embodiments, the network device and the terminal device agree in advance or the network device informs the terminal device of the following rules through signaling: if the network device sends the first target advance indication signal to the terminal device, it means that the first target advance indication signal indicates to perform PDCCH monitoring, otherwise (for example, the target advance indication signal is not sent), it means that the first target advance indication signal indicates to perform sleep. In this case, if the terminal device detects the first target advance indication signal, it is determined that PDCCH monitoring is required, otherwise it is determined that sleep is required.

Optionally, in other embodiments, there is a correspondence between the sequence format of the advance indication signal and the behavior of the indication. Or it can be understood that an early indication signal of one sequence format indicates PDCCH monitoring and an early indication signal of another sequence format indicates sleep. In this case, when determining that the sequence format of the first target early indication signal is the first format, the terminal device determines that the first target early indication signal indicates to perform target PDCCH monitoring; and when the terminal equipment determines that the sequence format of the first target early indication signal is the second format, determining that the first target early indication signal indicates to sleep.

Optionally, as an example, in S120, the determining the format of the target PDCCH according to the sequence format of the first target advance indication signal includes: determining the format of the target PDCCH according to the sequence format of the first target early indication signal and a first corresponding relation, wherein the first corresponding relation comprises the corresponding relation between the sequence format of the first target early indication signal and the format of the target PDCCH. That is, the sequence format of the first target advance indication signal may implicitly indicate the format of the target PDCCH.

For example, the correspondence between the sequence format of the first target advance indication signal and the format of the target PDCCH includes at least one of the following correspondences: the corresponding relation between the repetition times of the first target advanced indication signal and a Downlink Control Information (DCI) format of the target PDCCH; a correspondence between the number of repetitions of the first target advanced indicator signal and an aggregation level of a search space of the target PDCCH; a correspondence between the number of repetitions of the first target advanced indicator signal and a control resource set of the target PDCCH; and the corresponding relation between the repetition times of the first target advance indication signal and the repetition times of the target PDCCH.

For example, as shown in table 2, the number of repetitions of the first target advance indication signal corresponds to the number of repetitions of the target PDCCH. In table 2, the number of repetitions of the first target early indication signal is 1, the number of repetitions of the target PDCCH is 1, the number of repetitions of the first target early indication signal is 10, and the number of repetitions of the target PDCCH is 10.

TABLE 2

For another example, as shown in table 3, the number of repetitions of the first target advance indicator signal corresponds to an aggregation level of a search space of the target PDCCH. The sequence format of the first target early indication signal may be two, the sequence type of the sequence format 1 is a ZC sequence, the basic time domain resource is 11 OFDM symbols behind one subframe, the basic time domain resource is one PRB, and the sequence is not repeated in time, that is, occupies only one subframe. The sequence type of the sequence format 2 is a ZC sequence, the basic time domain resource is 11 OFDM symbols behind one subframe, the basic time-frequency domain unit is one PRB, and the sequence is repeated 10 times in time, that is, occupies 10 subframes. And the terminal equipment performs blind detection on the advanced indication signal, and if the terminal equipment determines that the sequence format of the first target advanced indication signal is sequence format 1, the aggregation level of the search space of the target PDCCH is determined to be 1 CCE according to the corresponding relation in the table 3. If the terminal device determines that the sequence format of the first target advanced indication signal is sequence format 2, the aggregation level of the search space of the target PDCCH can be determined to be 2 CCEs according to the corresponding relationship in table 3. And then the terminal equipment starts to monitor the target PDCCH from the determined aggregation level of the search space, and if the blind detection fails, the terminal equipment performs the blind detection of the target PDCCH aiming at other aggregation levels. Therefore, the frequency of PDCCH blind detection of the terminal equipment can be reduced, and the power consumption of the terminal equipment is reduced.

TABLE 3

It should be noted that the first correspondence in the embodiment of the present invention may be preset by a protocol or configured by a network device to a terminal device. Here, the network device may configure the first correspondence for the terminal device through the system message.

In this embodiment of the present invention, optionally, the method 100 further includes: and the terminal equipment performs time-frequency synchronization or time-domain synchronization according to the first target advanced indication signal. That is to say, the early indication signal in the embodiment of the present invention may be used for indicating whether the terminal device needs to perform PDCCH monitoring, and may also be used for performing time-frequency synchronization or time-domain synchronization on the terminal device.

Fig. 2 is a method of wireless communication according to another embodiment of the present invention. The method 200 may be performed by a network device. It is to be understood that the interaction between the terminal device and the network device described from the network device side is the same as that described in the terminal device side, and the related description is appropriately omitted to avoid redundancy. As shown in fig. 2, the method 200 includes:

s210, a first target advanced indication signal is sent to a terminal device, the first target advanced indication signal is a signal based on a sequence, the first target advanced indication signal is used for determining a format of a target PDCCH by the terminal device according to a sequence format of the first target advanced indication signal when the terminal device determines that the first target advanced indication signal indicates to monitor a target Physical Downlink Control Channel (PDCCH), and the target PDCCH is a PDCCH related to the first target advanced indication signal.

Optionally, as an embodiment, the first target early indication signal is further used for performing time-frequency synchronization or time-domain synchronization by the terminal device according to the first target early indication signal.

Optionally, as an embodiment, a sequence format of the first target early indication signal is characterized by at least one of the following parameters: a root sequence of the first target early indication signal, a scrambling sequence of the first target early indication signal, a cyclic shift of the first target early indication signal, a sequence type of the first target early indication signal, a time-frequency domain resource occupied by the first target early indication signal, a transmission power of the first target early indication signal, and a number of repetitions of the first target early indication signal.

Optionally, as an embodiment, different parameters used for characterizing the sequence format of the first target early indication signal have a preset correspondence relationship therebetween.

Optionally, as an embodiment, before sending the first target advance indication signal to the terminal device, the method 200 further includes:

determining a sequence format of the first target advanced indication signal according to the format of the target PDCCH, wherein the first corresponding relationship comprises a corresponding relationship between the sequence format of the first target advanced indication signal and the format of the target PDCCH.

That is, the network device knows the format of the target PDCCH, and the network device may determine, according to the format of the target PDCCH, the sequence format of the first target advance indication signal that needs to be sent to the terminal device. When the terminal device detects the first target advanced indication signal, the format of the target PDCCH can be determined according to the determined sequence format of the first target advanced indication signal and the first corresponding relationship.

Optionally, as an embodiment, the correspondence between the sequence format of the first target advance indication signal and the format of the target PDCCH includes at least one of the following correspondences:

the corresponding relation between the repetition times of the first target advanced indication signal and a Downlink Control Information (DCI) format of the target PDCCH;

a correspondence between the number of repetitions of the first target advanced indicator signal and an aggregation level of a search space of the target PDCCH;

a correspondence between the number of repetitions of the first target advanced indicator signal and a control resource set of the target PDCCH; and the number of the first and second groups,

a correspondence between the number of repetitions of the first target advance indicator signal and the number of repetitions of the target PDCCH.

Optionally, as an embodiment, before sending the first target advance indication signal to the terminal device, the method 200 further includes: when the first target early indication signal is determined to indicate that target PDCCH monitoring is carried out, determining that the sequence format of the first target early indication signal is a first format; determining a sequence format of the first target early indication signal to be a second format upon determining that the first target early indication signal indicates to sleep.

That is, there is a correspondence between the sequence format of the advance indication signal and the behavior of the indication. Or it can be understood that the early indication signal of one sequence format indicates PDCCH monitoring and the early indication signal of another sequence format indicates sleep. The network device knows the behavior indicated by the first target early indication signal, and the network device may determine the sequence format of the first target early indication signal that needs to be sent to the terminal device according to the behavior indicated by the first target early indication signal.

Optionally, as an embodiment, as shown in fig. 3, the method 200 further includes:

and S220, when it is determined that the terminal device does not successfully detect the first target early indication signal, sending a second target early indication signal to the terminal device, wherein the sequence format of the second target early indication signal is different from that of the first target early indication signal.

When the network equipment determines that the terminal equipment does not successfully detect the first target early indication signal, the network equipment can send a second target early indication signal with a sequence format different from that of the first target early indication signal to the terminal equipment, so that the possibility that the terminal equipment successfully detects the early indication signal is improved.

In particular, in some embodiments, the second target advance indication signal is repeated a greater number of times than the first target advance indication signal; or, the time-frequency domain resources occupied by the second advanced indication signal are more than the time-frequency domain resources occupied by the first target advanced indication signal; or, the transmission power of the second early indication signal is greater than that of the first target early indication signal.

That is, if the network device determines that the terminal device does not detect the first target early indication signal, and sends the second target early indication signal to the terminal device, the number of times of repetition of the second target early indication signal is greater than the number of times of repetition of the first target early indication signal, the time-frequency domain resources occupied by the second target early indication signal are greater than the time-frequency domain resources occupied by the first target early indication signal, and the sending power of the second target early indication signal is higher than the sending power of the first target early indication signal. This can improve the reliability of transmission of the advance instruction signal.

For example, as shown in table 4, the sequence formats of the early indicator signal are two, namely sequence format 1 and sequence format 2, the number of repetitions of the early indicator signal in sequence format 1 is 1, and the number of repetitions of the early indicator signal in sequence format 2 is 100. If the sequence format of the first target early indication signal sent by the network device is sequence format 1, but the network device determines that the terminal device has not successfully detected the first target early indication signal, the sequence format of the second target early indication signal sent by the network device to the terminal device is sequence format 2, that is, the number of times of repetition of the second target early indication signal is increased to 100.

TABLE 4

It can be understood that, if the network device sends the advance indication signal with the sequence format of sequence format 2 to the terminal device, and the network device determines that the number of times that the terminal device successfully detects the advance indication signal with the sequence format of sequence format 2 is greater than the preset number of times, when the network device sends the advance indication signal again to the terminal device, the advance indication signal with the sequence format of sequence format 1 may be sent to the terminal device.

Optionally, as an embodiment, before sending the first target advance indication signal to the terminal device, the method 200 further includes: if the first target early indication signal indicates to perform target PDCCH monitoring, determining that the repetition frequency of the first target early indication signal is a first numerical value, and if the first target early indication signal indicates to perform dormancy, determining that the repetition frequency of the first target early indication signal is a second numerical value, wherein the first numerical value is greater than the second numerical value; or the like, or, alternatively,

if the first target advanced indication signal indicates to perform first target PDCCH monitoring, determining the number of time frequency resources occupied by the first target advanced indication signal to be a first number, and if the first target advanced indication signal indicates to perform dormancy, determining the number of time frequency resources occupied by the first target advanced indication signal to be a second number, wherein the first number is larger than the second number; or the like, or, alternatively,

if it is determined that the first target early indication signal indicates to perform target PDCCH monitoring, determining that the transmission power of the first target early indication signal is a first power, and if it is determined that the first target early indication signal indicates to perform dormancy, determining that the transmission power of the first target early indication signal is a second power, where the first power is higher than the second power.

Or it can be understood that, in general, the early indication signal for instructing the terminal device to perform the target PDCCH monitoring is not successfully detected by the terminal device, and is more seriously affected than the early indication signal for instructing the terminal device to perform the sleep is not successfully detected by the terminal device. For example, the network device sending a Paging signal to the terminal device but not receiving the Paging signal will affect the Paging delay and subsequent data transmission. And the early indication signal indicating that the terminal device performs dormancy is not successfully detected by the terminal device, so that the terminal device will unnecessarily perform detection of the target PDCCH, only the electric quantity of the terminal device will be wasted, but the reception of the Paging signal will not be affected, and the subsequent data transmission will not be affected. Therefore, the network device may configure that the number of repetitions of the advanced indication signal indicating that the terminal device performs the target PDCCH monitoring is increased, the number of occupied time-frequency domain resources is greater, and the transmission power is higher than that of the advanced indication signal indicating that the terminal device sleeps, so as to reduce the possibility that the terminal device does not successfully detect the signal indicating that the terminal device performs the PDCCH monitoring, and reduce the influence caused by unsuccessfully detecting the signal indicating that the terminal device performs the PDCCH monitoring.

Optionally, as an embodiment, before sending the first target advance indication signal to the terminal device, the method 200 further includes: determining a sequence format of the first target advance indication signal according to a time interval and a preset time interval between the time when the terminal equipment completes time frequency synchronization or time domain synchronization for the last time and the starting time of the first target advance indication signal;

if the time interval is less than or equal to a preset time interval, determining that the repetition time of the first target advanced indication signal is a third numerical value and/or the number of time-frequency resources occupied by the first target advanced indication signal is a third number, and if the time interval is greater than the preset time interval, determining that the repetition time of the first target advanced indication signal is a fourth numerical value and/or the number of time-frequency resources occupied by the first target advanced indication signal is a fourth number, where the third numerical value is less than the fourth numerical value, and the third number is less than the fourth number.

That is, the network device configures the advanced indication signal with more repetition times and more occupied time-frequency domain resources for the terminal device which is not synchronized for a long time.

Also taking table 4 as an example, two sequence formats of the early indication signal are sequence format 1 and sequence format 2, respectively, where the number of repetitions of the early indication signal in sequence format 1 is 1, and the number of repetitions of the early indication signal in sequence format 2 is 100. If the network device determines that the terminal device does not perform synchronization for a long time (for example, the time interval between the time of last synchronization completion and the start time of the first target advance indication signal is greater than 1280ms), the network device determines that the sequence format of the first target advance indication signal sent to the terminal device is sequence format 2, and the terminal device performs synchronization based on the first target advance indication signal and performs the target behavior indicated by the first target advance indication signal. If the network device determines that the time interval between the time when the terminal device completes synchronization for the last time and the starting time of the first target early indication signal is less than 1280ms, the sequence format of the first target early indication signal sent to the terminal device by the network device is sequence format 1, and the terminal device executes the target behavior indicated by the first target early indication signal when detecting the first target early indication signal.

The method of wireless communication according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 3. A terminal device according to an embodiment of the present invention will be described in detail below with reference to fig. 4.

Fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 4, the terminal device 10 includes:

a first processing module 11, configured to detect a first target advance indication signal, where the first target advance indication signal is a sequence-based signal;

a second processing module 12, configured to determine, when the first target advanced indication signal indicates to perform target physical downlink control channel PDCCH monitoring, a format of the target PDCCH according to a sequence format of the first target advanced indication signal, where the target PDCCH is a PDCCH related to the first target advanced indication signal.

According to the embodiment of the invention, when the terminal equipment determines that the target behavior indicated by the target advanced indication signal is to monitor the target Physical Downlink Control Channel (PDCCH), the format of the target PDCCH is determined according to the target advanced indication signal, and then the format of the PDCCH to be monitored is determined before the PDCCH monitoring is carried out, so that blind detection on all PDCCHs in a PDCCH blind detection candidate set is avoided, the blind detection times of the terminal equipment on the PDCCH are reduced, and the power consumption of the terminal equipment is reduced.

Optionally, as an embodiment, the first processing module 11 is further configured to:

and performing time-frequency synchronization or time-domain synchronization according to the first target advanced indication signal.

Optionally, as an embodiment, the second processing module 12 is specifically configured to:

determining the format of the target PDCCH according to the sequence format of the first target early indication signal and a first corresponding relation, wherein the first corresponding relation comprises the corresponding relation between the sequence format of the first target early indication signal and the format of the target PDCCH.

when the sequence format of the first target early indication signal is determined to be a first format, determining that the first target early indication signal indicates to carry out target PDCCH monitoring;

determining that the first target early indication signal indicates to sleep when the sequence format of the first target early indication signal is determined to be a second format.

Optionally, as an embodiment, the first processing module 11 is specifically configured to:

and detecting the first target early indication signal in a blind detection mode.

The terminal device according to the embodiment of the present invention may refer to the flow corresponding to the method 100 according to the embodiment of the present invention, and each unit/module and the other operations and/or functions in the terminal device are respectively for implementing the corresponding flow in the method 100, and are not described herein again for brevity.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in fig. 5, the network device 20 includes:

a transceiver module 21, configured to send a first target advanced indication signal to a terminal device, where the first target advanced indication signal is a signal based on a sequence, and the first target advanced indication signal is used for determining, by the terminal device, a format of a target PDCCH according to a sequence format of the first target advanced indication signal when it is determined that the first target advanced indication signal indicates that target PDCCH monitoring is performed, where the target PDCCH is a PDCCH related to the first target advanced indication signal.

Optionally, as one embodiment, as shown in fig. 5, the network device further includes a processing module 22;

before the transceiver module 21 sends the first target advance indication signal to the terminal device, the processing module 22 is configured to:

Optionally, as an embodiment, as shown in fig. 5, the network device further includes a processing module 22:

before the transceiver module 21 sends the target advance indication signal to the terminal device, the processing module 22 is configured to:

when the first target early indication signal is determined to indicate that target PDCCH monitoring is carried out, determining that the sequence format of the first target early indication signal is a first format;

determining a sequence format of the first target early indication signal to be a second format upon determining that the first target early indication signal indicates to sleep.

Optionally, as an embodiment, the transceiver module 21 is further configured to:

and when determining that the terminal equipment does not successfully detect the first target early indication signal, sending a second target early indication signal to the terminal equipment, wherein the sequence format of the second target early indication signal is different from that of the first target early indication signal.

Optionally, as an embodiment, the number of repetitions of the second target advance indication signal is greater than the number of repetitions of the first target advance indication signal; or the like, or, alternatively,

the time-frequency domain resources occupied by the second advanced indication signal are more than the time-frequency domain resources occupied by the first target advanced indication signal; or the like, or, alternatively,

the transmission power of the second early indication signal is greater than that of the first target early indication signal.

Optionally, as an embodiment, as shown in fig. 5, the network device further includes a processing module 22;

if the first target early indication signal indicates to perform target PDCCH monitoring, determining that the repetition frequency of the first target early indication signal is a first numerical value, and if the first target early indication signal indicates to perform dormancy, determining that the repetition frequency of the first target early indication signal is a second numerical value, wherein the first numerical value is greater than the second numerical value; or the like, or, alternatively,

if the first target advanced indication signal is determined to indicate to perform target PDCCH monitoring, determining the number of time frequency resources occupied by the first target advanced indication signal to be a first number, and if the first target advanced indication signal is determined to indicate to perform dormancy, determining the number of time frequency resources occupied by the first target advanced indication signal to be a second number, wherein the first number is larger than the second number; or the like, or, alternatively,

determining a sequence format of the first target advance indication signal according to a time interval and a preset time interval between the time when the terminal equipment completes time frequency synchronization or time domain synchronization for the last time and the starting time of the first target advance indication signal;

The network device according to the embodiment of the present invention may refer to the flow corresponding to the method 200 according to the embodiment of the present invention, and each unit/module and the other operations and/or functions in the network device are respectively for implementing the corresponding flow in the method 200, and are not described herein again for brevity.

Fig. 6 shows a schematic structural diagram of a terminal device according to another embodiment of the present invention, and as shown in fig. 6, the terminal device 100 includes: at least one processor 110, memory 120, at least one network interface 130, and a user interface 140. The various components in the terminal device 100 are coupled together by a bus system 150. It will be appreciated that the bus system 150 is used to enable communications among the components of the connection. The bus system 150 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 150 in fig. 6.

The user interface 140 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It will be appreciated that memory 120 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synclink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 120 of the systems and methods described in this embodiment of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 120 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 121 and application programs 122.

The operating system 121 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 122 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing methods of embodiments of the present invention may be included in application 122.

In this embodiment of the present invention, the terminal device 100 further includes: a computer program stored on the memory 120 and capable of running on the processor 110, wherein the computer program, when executed by the processor 110, implements the processes of the method 100 described above and can achieve the same technical effects, and further description is omitted here to avoid repetition.

The method disclosed by the above-mentioned embodiment of the present invention can be applied to the processor 110, or implemented by the processor 110. The processor 110 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 110. The Processor 110 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 120, and the processor 110 reads the information in the memory 120 and performs the steps of the above method in combination with the hardware thereof. In particular, the computer-readable storage medium has stored thereon a computer program which, when executed by the processor 110, implements the steps of the method embodiments as described above in the method 100.

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

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

Fig. 7 shows a schematic structural diagram of a network device according to another embodiment of the present invention. As shown in fig. 7, the network device 200 includes a processor 210, a transceiver 220, a memory 230, and a bus interface. Wherein:

in this embodiment of the present invention, the network device 200 further includes: a computer program stored in the memory 230 and capable of running on the processor 210, where the computer program, when executed by the processor 210, implements the processes in the method 200, and can achieve the same technical effects, and is not described herein again to avoid repetition.

In FIG. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 210 and various circuits of memory represented by memory 230 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 220 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 210 is responsible for managing the bus architecture and general processing, and the memory 130 may store data used by the processor 210 in performing operations.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the

methods

100 and 200, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method of wireless communication applied to a terminal device, the method comprising:

when the first target advanced indication signal indicates to monitor a target Physical Downlink Control Channel (PDCCH), determining the format of the target PDCCH according to the sequence format of the first target advanced indication signal, wherein the target PDCCH is a PDCCH related to the first target advanced indication signal;

wherein the determining the format of the target PDCCH according to the sequence format of the first target early indication signal comprises:

determining a format of the target PDCCH according to a sequence format of the first target early indication signal and a first corresponding relationship, wherein the first corresponding relationship comprises a corresponding relationship between the sequence format of the first target early indication signal and the format of the target PDCCH, and the corresponding relationship between the sequence format of the first target early indication signal and the format of the target PDCCH comprises at least one of the following corresponding relationships:

2. The method of claim 1, further comprising:

3. The method according to claim 1 or 2, wherein the sequence format of the first target advance indication signal is characterized by at least one of the following parameters: a root sequence of the first target early indication signal, a scrambling sequence of the first target early indication signal, a cyclic shift of the first target early indication signal, a sequence type of the first target early indication signal, a time-frequency domain resource occupied by the first target early indication signal, a transmission power of the first target early indication signal, and a number of repetitions of the first target early indication signal.

4. The method according to claim 3, wherein there is a preset correspondence between different parameters of the sequence format used for characterizing the first target early indication signal.

5. The method according to claim 1 or 2, characterized in that the method further comprises:

6. The method of claim 1 or 2, wherein said detecting a first target advance indication signal comprises:

7. A method of wireless communication applied to a network device, the method comprising:

sending a first target advance indication signal to a terminal device, wherein the first target advance indication signal is a signal based on a sequence, the first target advance indication signal is used for determining a format of a target PDCCH (physical downlink control channel) according to a sequence format of the first target advance indication signal when the terminal device determines that the first target advance indication signal indicates to monitor a PDCCH (physical downlink control channel), and the target PDCCH is a PDCCH related to the first target advance indication signal;

before sending the first target advance indication signal to the terminal device, the method further includes:

determining a sequence format of the first target advanced indication signal according to the format of the target PDCCH, wherein the first corresponding relationship comprises a corresponding relationship between the sequence format of the first target advanced indication signal and the format of the target PDCCH; wherein a correspondence between the sequence format of the first target advanced indication signal and the format of the target PDCCH includes at least one of the following correspondences:

8. The method of claim 7, wherein the first target early indication signal is further used for time-frequency synchronization or time-domain synchronization by the terminal device according to the first target early indication signal.

9. The method according to claim 7 or 8, wherein the sequence format of the first target advance indication signal is characterized by at least one of the following parameters: a root sequence of the first target early indication signal, a scrambling sequence of the first target early indication signal, a cyclic shift of the first target early indication signal, a sequence type of the first target early indication signal, a time-frequency domain resource occupied by the first target early indication signal, a transmission power of the first target early indication signal, and a number of repetitions of the first target early indication signal.

10. The method according to claim 9, wherein there is a preset correspondence between different parameters of the sequence format used for characterizing the first target advance indication signal.

11. The method according to claim 7 or 8, wherein before transmitting the first target advance indication signal to a terminal device, the method further comprises:

12. The method according to claim 7 or 8, characterized in that the method further comprises:

13. The method of claim 12,

the number of repetitions of the second target advance indication signal is greater than the number of repetitions of the first target advance indication signal; or the like, or, alternatively,

14. The method of claim 9, wherein prior to transmitting the first target advance indication signal to the terminal device, the method further comprises:

if the first target early indication signal is determined to indicate to perform target PDCCH monitoring, determining that the repetition frequency of the first target early indication signal is a first numerical value, and if the first target early indication signal is determined to indicate to perform dormancy, determining that the repetition frequency of the first target early indication signal is a second numerical value, wherein the first numerical value is larger than the second numerical value; or the like, or, alternatively,

if the first target advanced indication signal is determined to indicate to perform first target PDCCH monitoring, determining the number of time frequency resources occupied by the first target advanced indication signal to be a first number, and if the first target advanced indication signal is determined to indicate to perform dormancy, determining the number of time frequency resources occupied by the first target advanced indication signal to be a second number, wherein the first number is larger than the second number; or the like, or, alternatively,

15. The method of claim 9, wherein prior to transmitting the first target advance indication signal to the terminal device, the method further comprises:

16. A terminal device, comprising:

a second processing module, configured to determine, when the first target advanced indication signal indicates to perform target physical downlink control channel PDCCH monitoring, a format of the target PDCCH according to a sequence format of the first target advanced indication signal, where the target PDCCH is a PDCCH related to the first target advanced indication signal;

wherein the second processing module is specifically configured to: determining the format of the target PDCCH according to the sequence format of the first target early indication signal and a first corresponding relation, wherein the first corresponding relation comprises the corresponding relation between the sequence format of the first target early indication signal and the format of the target PDCCH; wherein a correspondence between the sequence format of the first target advanced indication signal and the format of the target PDCCH includes at least one of the following correspondences:

17. The terminal device of claim 16, wherein the first processing module is further configured to:

18. The terminal device according to claim 16 or 17, wherein the sequence format of the first target advance indication signal is characterized by at least one of the following parameters: a root sequence of the first target early indication signal, a scrambling sequence of the first target early indication signal, a cyclic shift of the first target early indication signal, a sequence type of the first target early indication signal, a time-frequency domain resource occupied by the first target early indication signal, a transmission power of the first target early indication signal, and a number of repetitions of the first target early indication signal.

19. The terminal device according to claim 18, wherein there is a preset correspondence between different parameters used for characterizing the sequence format of the first target early indication signal.

20. The terminal device according to claim 16 or 17, wherein the second processing module is further configured to:

21. The terminal device according to claim 16 or 17, wherein the first processing module is specifically configured to:

22. A network device, comprising:

a transceiver module, configured to send a first target advanced indication signal to a terminal device, where the first target advanced indication signal is a signal based on a sequence, and the first target advanced indication signal is used by the terminal device to determine, when determining that the first target advanced indication signal indicates to perform target physical downlink control channel PDCCH monitoring, a format of a target PDCCH according to a sequence format of the first target advanced indication signal, where the target PDCCH is a PDCCH related to the first target advanced indication signal;

a processing module; the receiving and sending module is configured to determine, according to a format of the target PDCCH, a sequence format of the first target advance indication signal before the receiving and sending module sends the first target advance indication signal to a terminal device, where the first corresponding relationship includes a corresponding relationship between the sequence format of the first target advance indication signal and the format of the target PDCCH; wherein a correspondence between the sequence format of the first target advanced indication signal and the format of the target PDCCH includes at least one of the following correspondences:

23. The network device of claim 22, wherein the first target early indication signal is further used for time-frequency synchronization or time-domain synchronization by the terminal device according to the first target early indication signal.

24. The network device of claim 22 or 23, wherein a sequence format of the first target advance indication signal is characterized by at least one of the following parameters: a root sequence of the first target early indication signal, a scrambling sequence of the first target early indication signal, a cyclic shift of the first target early indication signal, a sequence type of the first target early indication signal, a time-frequency domain resource occupied by the first target early indication signal, a transmission power of the first target early indication signal, and a number of repetitions of the first target early indication signal.

25. The network device of claim 24, wherein different parameters characterizing a sequence format of the first target early indication signal have a preset correspondence relationship.

26. The network device according to claim 22 or 23, wherein before the transceiver module transmits the target-advance-indication signal to a terminal device, the processing module is further configured to:

27. The network device of claim 22 or 23, wherein the transceiver module is further configured to:

28. The network device of claim 27,

29. The network device of claim 24, wherein the network device further comprises a processing module;

wherein, before the transceiver module sends the first target advance indication signal to the terminal device, the processing module is configured to:

30. The network device of claim 24, wherein the network device further comprises a processing module;

31. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method of wireless communication according to any of claims 1 to 6.

32. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method of wireless communication according to any of claims 7-15.

33. A computer-readable medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method of wireless communication according to any one of claims 1 to 15.