CN110875811A

CN110875811A - Transmission method of indication signaling, base station and terminal

Info

Publication number: CN110875811A
Application number: CN201811009965.1A
Authority: CN
Inventors: 胡丽洁; 徐晓东; 侯雪颖; 杨拓; 王启星; 刘光毅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2020-03-10
Anticipated expiration: 2038-08-31
Also published as: CN110875811B

Abstract

The invention provides a transmission method of an indication signaling, a base station and a terminal, wherein the transmission method of the indication signaling applied to the base station comprises the following steps: sending an indication signaling on a designated transmission resource, the designated transmission resource being determined by a time domain and/or frequency domain resource of a transmission SSB, the indication signaling indicating at least one of the following information: first information indicating an active state for at least one next DRX cycle; second information indicating a configuration of DRX parameters for the at least one DRX cycle; third information for indicating a detection state of the PDCCH; fourth information indicating a detection status of at least one paging occasion to follow. The invention can improve the flexibility of the configuration of the DRX in the connection state and achieve the aim of more effective energy saving.

Description

Transmission method of indication signaling, base station and terminal

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a transmission method of an indication signaling, a base station, and a terminal.

Background

In order to meet richer service experience and smoother network use experience of users, 5G introduces larger bandwidth and more antennas, and allows more optional network configurations in system design, but these also bring larger terminal power consumption. If an effective terminal energy-saving design cannot be introduced, the service duration of the terminal is ensured, the service introduction of the terminal is greatly limited, and the use experience of an NR (new wireless) network and the terminal of a user is influenced. On the other hand, ITU (international telecommunications union) defines a higher energy efficiency index for 5G, and the high energy efficiency of the terminal is reflected in: 1) in the data transmission process, more efficient transmission efficiency is adopted; 2) when there is no data transmission, there is lower power consumption. Requirements are provided for energy consumption of the terminal from the 5G deployment requirement and the performance index, and a terminal energy-saving project is established based on the R16.

The research of the project aims to consider the energy-saving design of the terminal on the basis of considering both the delay and the system performance, and the research content is focused on the following 2 aspects in the physical layer:

● research on energy-saving technology in RRC (Radio Resource Control) connection state, to perform transmission adaptive energy-saving research based on user service type, relating to design of energy-saving signal, channel and flow for adapting to user service type in frequency domain dimension, time domain dimension, antenna dimension, DRX (Discontinuous Reception) parameter configuration, user time processing capability and other aspects.

● terminal power saving design for RRM (radio resource management) measurements in synchronous and asynchronous networks. To the operation of RAN1 and RAN 2.

From the statistical result of the energy consumption of the LTE (long term evolution) terminal, more than half of the terminal power consumption occurs in the terminal RRC _ CONNECTED (RRC CONNECTED) state, and in most cases, the terminal detects that no effective data scheduling or only a small amount of data scheduling is received, and at this time, if the frequency of the terminal for performing control channel detection or the bandwidth of data reception can be reduced, the terminal power consumption can be effectively saved. Therefore, it is very meaningful for the physical layer to start the energy-saving design of the connection state from several power consumption leading elements of the connection state, such as bandwidth, the number of activated RF chains, activation time, and the like.

In the prior art, in an enhanced technology of NB-IOT (Narrow Band Internet of Things), an energy-saving design has been considered, a design of an IDLE wakeup signal is considered, a WUS (wakeup signal) is introduced to indicate whether a paging moment of a terminal has an effective paging message to be sent, if no effective paging message is sent, the terminal does not need to detect a control channel for scheduling the paging message, and a low power consumption mode can be continuously maintained, so that an energy-saving effect is achieved.

The WUS signal employs a ZC sequence of 131 length, carries a cell ID, configures the maximum time domain duration of the WUS through a higher layer, and configures a gap (gap) between the WUS and a PDCCH that schedules a paging message, as shown in fig. 1. Since the NB-IOT is a narrowband system, the WUS occupies the whole bandwidth of the NB-IOT in the frequency domain, and occupies one subframe, namely 1ms, in the time domain.

The WUS design in the NB is mainly used to solve the energy consumption problem of IDLE state users detecting invalid PDCCH. For NR, the physical layer power saving technique focuses on a power saving technique considering a connection state. In addition, the WUS occupies the whole bandwidth of the system and the design of the whole subframe is not applicable any more, the system bandwidth of NR is as large as several hundred megabytes, and the occupied whole bandwidth is obviously too large in overhead. For the connected state, the scheduling frequency of the control channel is at the time slot level. While the paging cycle in the idle state is on the order of tens of hundreds of milliseconds. If a slot level (the time domain scheduling unit of LTE is a subframe, which contains 14 OFDM symbols at 15KHz subcarrier intervals, and the time domain scheduling unit of NR is a slot or a mini-slot, and a slot contains 14 OFDM symbols regardless of the subcarrier interval size) is added for each control channel scheduling, the wake-up signal overhead cannot be borne. On the other hand, the complexity of detecting the control channel in the NR connection state is derived from various aspects, such as the detected frequency, the number of detected control channel candidates, the detected bandwidth, and the like. The WUS design in NB-IOT systems only requires a PDCCH indicating whether the paging channel needs to be detected.

The DRX technique is a power saving technique that can be used for a connected terminal. The configuration of the DRX in the connection state in the NR is performed through a high-level signaling, and a series of timer parameters of the terminal are configured, such as an on duration timer, an inactivity timer, an HARQ-RTT timer for uplink and downlink (discontinuous reception-hybrid automatic repeat request-round trip time timer), a retransmission timer for uplink and downlink, a long DRX cycle setting, a short DRX cycle setting, a starting slot offset setting, a slot offset setting, and the like, and a user performs the transition between the active state and the DRX state based on the configuration of the high-level parameters. It is determined when the terminal is in the active period based on these configurations. The PDCCH is detected only in the activation period, and the PDCCH can not be detected at other time, so that the aim of saving energy is fulfilled.

However, the configuration of the connected DRX is performed through a high-level signaling, and the adjustment of the configuration information is not flexible, so that the energy-saving effect cannot be quickly adapted to the service type of the terminal.

Disclosure of Invention

In view of this, the present invention provides a transmission method of indication signaling, a base station, and a terminal, which are used to solve the problem that the existing configuration of DRX in a connected state is performed through high-level signaling, and the energy saving effect cannot be quickly adapted to the service type of the terminal.

In order to solve the above technical problem, the present invention provides a transmission method of an energy saving indication signaling, which is applied to a base station, and comprises:

sending an indication signaling on a designated transmission resource, the designated transmission resource being determined by a time domain and/or frequency domain resource of a transmission SSB, the indication signaling indicating at least one of the following information:

first information indicating an active state for at least one next DRX cycle;

second information indicating a configuration of DRX parameters for the at least one DRX cycle;

third information for indicating a detection state of the PDCCH;

fourth information indicating a detection status of at least one paging occasion to follow.

Optionally, the designated transmission resource is located in an orthogonal frequency division multiplexing OFDM symbol that transmits the SSB.

Optionally, there are 4 OFDM symbols for transmitting the SSB, and the specified transmission resource is located in the 1 st OFDM symbol of the SSB.

Optionally, the designated transmission resources are located on two sides of the frequency domain resource of the primary synchronization signal in the 1 st OFDM symbol, and the subcarriers used for transmission are the same as the subcarriers for transmitting the physical broadcast channel PBCH on the 3 rd OFDM symbol of the SSB.

Optionally, the designated transmission resource is located in an OFDM symbol adjacent to the OFDM symbol of the SSB.

Optionally, the sending the indication signaling on the designated transmission resource includes:

coding the indication signaling by a channel coding mode, or a repeated coding mode, or a coding mode that the information bit and the coding bit have a mapping relation;

sending the coded indication signaling on the specified transmission resource;

or, the indication signaling is carried through a sequence;

transmitting the sequence on the designated transmission resource.

Optionally, the indicating the active state in the next at least one DRX cycle by the first information includes:

indicating whether a time position satisfying a DRX-ShortCycle and DRX-StartOffset parameter constraint relationship and/or a time position satisfying a DRX-LongCycle and DRX-StartOffset parameter constraint relationship and/or a time position satisfying a DRX-SlotOffset parameter constraint starts or not in a next at least one DRX cycle; or,

indicating whether to detect PDCCH during an active period of the next at least one DRX cycle; or

Indicating a time position meeting the restriction relation between the DRX-ShortCycle and the DRX-StartOffset parameter and/or meeting the restriction relation between the DRX-LongCycle and the DRX-StartOffset parameter and/or meeting the restriction relation between the DRX-SlotOffset parameter in at least one next DRX period, and starting a DRX-onDurationTimer; or,

indicating that the PDCCH is detected during an active period of at least one DRX cycle that follows.

Optionally, the DRX parameter includes at least one of: drx-onDurationTimer, drx-InactivityTimer, drx-HARQ-RTT-TimerDL, drx-HARQ-RTT-TimerUL, drx-retransmission TimerDL, drx-retransmission TimerUL, drx-longCycleStartOffset, shortDRX, and drx-SlotOffset.

Optionally, the method further includes:

sending the configuration of a plurality of sets of DRX parameters through a high-level signaling, wherein the configuration of at least part of DRX parameters in each set is different from the configuration of DRX parameters of other sets;

wherein the second information is used to indicate one of the configurations of the multiple sets of DRX parameters.

Optionally, the method further includes:

sending the configuration of a set of DRX parameters through a high-level signaling;

wherein the second information comprises a scaling factor, and the DRX parameter applied to the at least one DRX cycle is determined by the configuration of the DRX parameter configured by the higher layer signaling and the scaling factor.

Optionally, the third information includes: a status indication message, where the status indication message corresponds to a detection status of the PDCCH, each detection status includes a combination of values of n types of configuration information, n is a positive integer greater than or equal to 1, and the n types of configuration information are selected from at least one of the following configuration information: the type of search space, the search space set, the RNTI of the search space, the DCI format, the length of the DCI, and the candidate proportion of the PDCCH.

Optionally, the method further includes:

and sending a corresponding relation between state indication information and the detection state of the PDCCH through a high-level signaling, wherein each piece of state indication information corresponds to one detection state.

Optionally, the third information includes: x bits for indicating a combination of values of y types of configuration information, wherein each type of configuration information corresponds to at least 1 bit of the x bits, and the y types of configuration information are selected from at least one of the following configuration information: the type of search space, the search space set, the RNTI of the search space, the DCIformat, the length of the DCI, and the candidate proportion of the PDCCH.

Optionally, the indication signaling is a common indication signaling; or,

the indication signaling comprises indication signaling of m terminals, wherein m is a positive integer greater than or equal to 1; or

The indication signaling is terminal-specific signaling.

Optionally, the method further includes:

and sending configuration information through a high-level signaling, wherein the configuration information is used for informing a terminal whether to detect the indication signaling.

The invention also provides a transmission method of the indication signaling, which is applied to a terminal and comprises the following steps:

receiving indication signaling on a specified transmission resource, the specified transmission resource being determined by a time domain and/or frequency domain resource transmitting the SSB, the indication signaling indicating at least one of the following information:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

Optionally, the designated transmission resource is located in an OFDM symbol in which the SSB is transmitted.

Optionally, the designated transmission resource is located on both sides of the frequency domain resource of the primary synchronization signal in the 1 st OFDM symbol, and the subcarrier used for transmission is the same as the subcarrier used for transmitting the PBCH on the 3 rd OFDM symbol of the SSB.

Optionally, the method further includes:

receiving the configuration of a plurality of sets of DRX parameters sent by a base station through high-level signaling, wherein the configuration of at least part of DRX parameters in each set is different from the configuration of DRX parameters of other sets;

Optionally, the method further includes:

receiving the configuration of a set of DRX parameters sent by a base station through a high-level signaling;

Optionally, the method further includes:

receiving a corresponding relation between state indication information sent by a base station through a high-level signaling and a detection state of a PDCCH, wherein each state indication information corresponds to one detection state.

Optionally, the indication signaling is a common indication signaling; or,

The indication signaling is terminal-specific signaling.

Optionally, the method further includes:

and receiving configuration information sent by a base station through a high-level signaling, wherein the configuration information is used for informing the terminal whether to detect the indication signaling.

The present invention also provides a base station, comprising:

a transceiver configured to transmit indication signaling on a specified transmission resource, the specified transmission resource being determined by a time domain and/or frequency domain resource on which an SSB is transmitted, the indication signaling indicating at least one of the following information:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

The present invention also provides a terminal, comprising:

a transceiver configured to receive indication signaling on a specified transmission resource, the specified transmission resource being determined by a time domain and/or frequency domain resource of a transmission SSB, the indication signaling indicating at least one of the following information:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

The invention also provides a base station, comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor; wherein the processor implements the method for transmitting the indication signaling applied to the base station when executing the program.

The invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor; wherein the processor implements the method for transmitting the indication signaling applied to the terminal when executing the program.

The present invention also provides a computer-readable storage medium, on which a computer program is stored, which is characterized in that the program, when executed by a processor, implements the steps in the transmission method of the above-mentioned indication signaling.

The technical scheme of the invention has the following beneficial effects:

in the embodiment of the invention, the configuration of the DRX in the connection state is indicated through the indication signaling which is sent periodically, and the transmission resource of the DRX in the connection state has a determined position relation with the transmission resource of the SSB, so that the flexibility of the configuration of the DRX in the connection state is improved, and the aim of more effectively saving energy is fulfilled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a positional relationship between a WUS and a PDCCH that schedules paging messages;

fig. 2 is a flowchart illustrating a method for transmitting indication signaling according to a first embodiment of the present invention;

FIG. 3 is a diagram illustrating a location relationship between transmission resources of indication signaling and transmission resources of SSB according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating the location relationship between the transmission resources of the indication signaling and the transmission resources of the SSB according to another embodiment of the present invention;

fig. 5 is a flowchart illustrating a method for transmitting indication signaling according to a second embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base station according to a third embodiment of the present invention;

fig. 7 is a schematic structural diagram of a terminal according to a fourth embodiment of the present invention;

fig. 8 is a schematic structural diagram of a base station according to a fifth embodiment of the present invention;

fig. 9 is a schematic structural diagram of a terminal according to a sixth embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

Referring to fig. 2, fig. 2 is a flowchart illustrating a method for transmitting an indication signaling according to a first embodiment of the present invention, where the method for transmitting the indication signaling is applied to a base station, and includes:

step 21: transmitting indication signaling on a specified transmission resource determined by time and/or frequency domain resources of a transmission SSB (SS/PBCHLock, synchronization Signal/physical broadcast channel Block), the indication signaling indicating at least one of the following information:

first information indicating an active state in a next at least one DRX (discontinuous reception) cycle;

third information for indicating a detection state of a PDCCH (physical downlink control channel);

In the embodiment of the invention, the transmission resource of the indication signaling is determined by the time domain and/or frequency domain resource for transmitting the SSB, namely, the transmission resource of the indication signaling and the transmission resource of the SSB have a determined position relation, and the indication signaling is also periodically transmitted because the SSB is periodically transmitted, thereby improving the flexibility of the configuration of the DRX in a connection state and achieving the purpose of more effectively saving energy.

The SSBs in the embodiment of the present invention may be all SSBs sent by the base station, or may be SSBs at a specific location.

In addition, in the embodiment of the present invention, the indication instruction may indicate an active state in at least one next DRX cycle, a configuration of DRX parameters in at least one DRX cycle, a detection state of a PDCCH, and a detection state of at least one next paging occasion, and the content of the indication may be more flexible.

The following describes the transmission method of the indication signaling and the indication content of the indication signaling in detail.

First, indicating the transmission mode of signaling

In the embodiment of the present invention, the transmission resource of the indication signaling is determined by the time domain and/or frequency domain resource for transmitting the SSB, that is, the transmission resource of the indication signaling and the transmission resource of the SSB have a determined position relationship.

First, the transmission method and the portable content of the SSB will be explained.

The transmission period of the SSB may be configured as 5,10,20,40,80,160 ms, one SSB in the time domain containing 4 OFDM symbols and 240 consecutive subcarriers in the frequency domain, the subcarriers used in the SSB for transmitting PSS (primary synchronization signal), SSS (secondary synchronization signal), PBCH (physical broadcast channel) and DM-RS (demodulation reference signal) according to NR current design are shown in the table below (from 38.211). That is, the sequence of PSS and SSS is transmitted over 127 subcarriers 56 to 182 of the 1 st and 3 rd OFDM symbols (corresponding to symbol indices of 0, 2). PBCH is transmitted on 2 nd and 4 th OFDM symbols, and simultaneously transmitted on 96 subcarriers of 0-47,192-239 numbers on two sides of 3 rd OFDM symbol, namely SSS. V in the table represents the shift of the subcarriers of the DM-RS mapping.

Table 1: resources (Resources with in-an SS/PBCH block for PSS, SSS, PBCH, and DM-RS for PBCH) occupied by PSS, SSS, PBCH, and DM-RS in SSB

In some embodiments of the present invention, optionally, the designated transmission resource of the indication signaling may be located in an OFDM (orthogonal frequency division multiplexing) symbol in which the SSB is transmitted.

As can be seen from the above table, in the four symbols of the SSB, the same subcarrier position corresponding to the 3 rd OFDM symbol transmission PBCH in the 1 st OFDM symbol (corresponding to the symbol index of 0) is Set to 0 (i.e. Set to 0 in the table), and thus, the 0 position can be used as the designated transmission resource for the indication signaling. That is, the designated transmission resource may be located in the 1 st OFDM symbol of the SSB.

Referring to fig. 3, in some embodiments, the designated transmission resources may be located on both sides of the frequency domain resources of the PSS in the 1 st OFDM symbol, and the subcarriers used for transmission are the same as the subcarriers used for transmission of PBCH on the 3 rd OFDM symbol of the SSB.

In the embodiment of the invention, the indication signaling is carried on the sub-carrier with 0 of the SSB, so that the time-frequency domain resource can be fully utilized, and the additional resource allocation is not needed, thereby avoiding the fragmentation of the resource.

Referring to fig. 4, in some other embodiments, the designated transmission resources may also be located on the side of the frequency domain resources of the PSS in the 1 st OFDM symbol, wherein the partial frequency domain resources of the designated transmission resources are the same as the partial frequency domain resources of the 1 st OFDM symbol of the SSB.

Of course, in some other embodiments of the present invention, optionally, the designated transmission resource may also be located in an OFDM symbol adjacent to the OFDM symbol of the SSB.

In this embodiment of the present invention, the sending the indication signaling on the designated transmission resource includes:

sending the coded indication signaling on the specified transmission resource;

or ,

carrying the indication signaling through a sequence;

transmitting the sequence on the designated transmission resource.

The indication signaling of different terminals can be distinguished by different orthogonal codes and transmitted on the same transmission resource.

Second, indicating content of indication signaling

The first to indicating signaling in the above embodiments may indicate the first information, the second information, the third information and/or the fourth information, which are described below separately.

1. First information indicating an active state for at least one DRX cycle next

In this embodiment of the present invention, the indicating the active state in the next at least one DRX cycle by the first information includes:

a) indicating whether a DRX-onduration timer (discontinuous reception-activation timer) is started or not at a time position satisfying a constraint relation of a DRX-ShortCycle (discontinuous reception-short cycle) and a DRX-StartOffset (discontinuous reception-start offset) parameter and/or satisfying a constraint relation of a DRX-LongCycle (discontinuous reception-long cycle) and a DRX-StartOffset (discontinuous reception-slot offset) parameter and/or satisfying a DRX-SlotOffset (discontinuous reception-slot offset) parameter in a next at least one DRX cycle;

or ,

b) indicating whether to detect PDCCH during an active period of the next at least one DRX cycle;

or

c) Indicating a time position meeting the restriction relation between the DRX-ShortCycle and the DRX-StartOffset parameter and/or meeting the restriction relation between the DRX-LongCycle and the DRX-StartOffset parameter and/or meeting the restriction relation between the DRX-SlotOffset parameter in at least one next DRX period, and starting a DRX-onDurationTimer;

or ,

d) indicating that the PDCCH is detected during an active period of at least one DRX cycle that follows. The following examples are given.

For example, the first information indicates an on duration (active period) of the next DRX cycle, and the terminal does not need to wake up to receive the PDCCH, that is, there is no PDCCH scheduling in the on duration of the next DRX cycle, so that the terminal may continue to maintain an inactive state, thereby achieving the effect of saving energy.

For example, when using the Short DRX Cycle, [ (SFN × 10) + subframe number ] module (DRX-ShortCycle) (DRX-StartOffset) module (DRX-ShortCycle) is satisfied, or, when using the Long DRXCycle, a DRX-duration timer is started at a time position indicated by a start position start offset DRX-slotfast of a subframe satisfying [ (SFN × 10) + subframe number ] module (DRX-LongCycle) ═ DRX-StartOffset.

The indication signaling may indicate whether the next time to start the drx onDurationTimer starts drx onDurationTimer.

Or, whether to detect the PDCCH at the next activation time is indicated.

The activation times include the activation time declared in 38.321: when DRX is configured, the activation times include the following:

-a run period of drx-onDurationTimer or drx-inactivytimer or drx-retransmission timerdl or drx-retransmission timerlor ra-ContentionResolutionTimer;

or

-one SR (scheduling) request is sent on PUCCH, no response has been received (in pending phase);

or

-a random access response has been successfully received, which random access response corresponds to a random access sequence that the MAC (medium access control) entity has not selected from the contention based random access sequences, but has not received the PDCCH indication new data transmission corresponding to the C-RNTI of the MAC entity.

2. Second information indicating configuration of DRX parameters of the at least one DRX cycle

In this embodiment of the present invention, optionally, the DRX parameter includes at least one of the following: drx-onDurationTimer, drx-inactivetytimer, drx-HARQ-RTT-timerl, drx-HARQ-RTT-timerll, drx-HARQ-hybrid automatic repeat request-round trip time timer, drx-retransmission-timerll, drx-retransmission timerll, drx-LongCycleStartOffset, shortDRX (short-period discontinuous reception) and drx-SlotOffset.

The configuration of the DRX parameters is specifically as follows:

in the embodiment of the present invention, the configuration of the DRX parameter may be indicated in the following manner:

a) sending the configuration of a plurality of sets of DRX parameters through a high-level signaling, wherein the configuration of at least part of DRX parameters in each set is different from the configuration of DRX parameters of other sets; wherein the second information is used to indicate one of the configurations of the multiple sets of DRX parameters.

b) Sending the configuration of a set of DRX parameters through a high-level signaling; wherein the second information comprises a scaling factor, and the DRX parameter applied to the at least one DRX cycle is determined by the configuration of DRX parameter configured by the higher layer signaling and the scaling factor.

In the embodiment of the present invention, the scaling factor may be 1/8,1/4,1/2,1,2,4,8, and the like.

For the value of the timer (one or more of the timers described above) in the configuration of the DRX parameter, the value of the timer in the higher-level configuration may be multiplied by a scaling factor, and the obtained result is compared with an optional value in the value range of the timer to find the closest value of the timer, or the closest value of the timer is the largest optional value smaller than the multiplication result, or the smallest optional value larger than the multiplication result, as the value of the timer applied to the at least one DRX cycle. In addition, if the multiplication result is a decimal, the rounding operation may be performed first.

For scaling factors of the long DRX cycle and the short DRX cycle, the period and the offset value of the long DRX cycle are defined simultaneously, and the rounding operation may be performed after multiplying the period and the offset value by the scaling factor. For the value of Short DRX cycle, it may be based on that the proportional relationship between the high-level configuration and the long DRX cycle is k, for example, the period of the long DRX is k times of the Short DRX cycle, and then the corresponding value of the long DRX cycle after being multiplied by the scaling factor and rounded may be directly divided by k to obtain the corresponding value of the Short DRX cycle.

3. Third information indicating a detection state of PDCCH

The complexity of PDCCH detection is derived from that the terminal needs to perform blind detection simultaneously, and the PDCCH has more configurations, for example, more types of search spaces, more search space sets (search space sets), more DCI formats (formats of downlink control information), and more candidate ratios of the PDCCH.

Therefore, the terminal can be combined through various types of configuration information and indicated to the terminal through the indication signaling, the terminal omits unnecessary detection according to the indication signaling, and only performs blind detection on part of the PDCCH, thereby reducing the detection complexity of the terminal. The configuration information includes at least one of: the type of search space, the search space set, the RNTI of the search space, the DCI format, the length of the DCI, and the candidate proportion of the PDCCH.

The combined design set is performed by taking values of different states of part or all of the above configuration information. Here, the PDCCH detection of the connected user is taken as an example, and for the connected terminal, the system information is read only at a fixed time, and the change of the system message is indicated by paging. PDCCH detection for paging (transmission of P-RNTI scrambled control information), random access response (transmission of RA-RNTI or TC-RNTI scrambled control information), and other types 3 common control information for SFI (slot format indication), power control command, interrupt transmission indication (interrupted transmission indicator, etc.) may be considered.

The state of the search space type can be divided into: a common search space, a UE specific search space, and both a common search space and a UE specific search space need to be detected.

The status of DCI format may be divided into: the common search space includes DCI format0_ 0,1_0,2_0,2_1,2_2,2_ 3. The UE specific search space has 0_1,1_1,0_0,1_ 0.

The formats may be further grouped according to the format's DCI size, with the same grouping making a status indication. For example, DCI formats 0_0,1_0,2_2, and 2_3 of a common search space may be merged into the same state because the DCI sizes are the same, and in this case, if the state is indicated, according to the configuration of the search space, if the detection positions of the search spaces of these formats, i.e., monitoring occasions, occur in the same time slot, the terminal may need to blindly detect multiple DCI formats at the same time.

The PDCCH candidate ratio may be divided into 1/4,1/2,1 equal ratios of candidates in search space (search space) configuration; that is, only the first 1/4 candidates, 1/2 candidates, and all candidates need to be detected. As for the value of the proportion, other settings may be available, and the final number of candidates may also be rounded up or rounded down in order to ensure that the number is an integer value.

If the upper search space set is considered, it may be 1/4,1/2,1 equal proportion of all sets; or the configured search space sets are divided into different groups according to IDs, for example, group 1 corresponds to search space IDs 0-1, group 2 corresponds to IDs 2-3, group 3 corresponds to IDs 4-5, and sequential group 5 corresponds to 8-9.

The differentiation of RNTIs, such as for the same type of search space, also distinguishes different RNTI scrambling. However, generally, the same DCIsize does not provide much complexity for blind detection due to different format formats, and therefore, the energy saving effect of RNTI differentiation is limited.

The above configuration information is partially or completely combined to form different indication states of the control information.

a) In some embodiments of the invention, the third information comprises: state indication information, the state indication information corresponds to a detection state of the PDCCH, each detection state includes a combination of values of n types of configuration information, n is a positive integer greater than or equal to 1, and the n types of configuration information are selected from at least one of the following configuration information: the type of search space, the search space set, the RNTI of the search space, the DCI format, the length of the DCI, and the candidate proportion of the PDCCH.

The following examples are given.

Table 23 bit table indication

Taking the status indication information as 110 as an example, indicating that the current user only needs to detect the UE specific search space, if the current time slot exactly corresponds to the paging occasion, since the paging control information belongs to the common control information, it indicates that no paging control information is currently sent, and the user does not need to detect the paging acquisition system message update condition. The detected DCI format includes both DCI format0_ 0,1_0 of fall back and DCI format0_1,1_1, and this state is applicable to the case where a user configures a plurality of UE specific search spaces, because a certain search space can only be a monitor DCI format0_ 0,1_0 or DCI format0_1,1_ 1. Simultaneous monitor DCI format0_ 0,1_0 and DCIformat0_1,1_1 may be needed only in case of multiple search spaces.

For the status indication information of 101, since only the monitor DCI format0_1,1_1 is needed, the user does not need to perform detection for those search spaces configured with detection DCI format0_ 0,1_ 0.

The status indication information is 000, which indicates that the current UE does not need to perform detection of the control channel.

The above table design is only an example, how many kinds of configuration information are combined with the current state indicating information, which kinds of configuration information are combined, and the state division of each configuration information can be configured by a higher layer. That is, the base station may send a corresponding relationship between status indication information and detection statuses of the PDCCH through a high-level signaling, where each of the status indication information corresponds to one of the detection statuses.

b) In some embodiments of the invention, the third information comprises: x bits for indicating a combination of values of y types of configuration information, wherein each type of configuration information corresponds to at least 1 bit of the x bits, and the y types of configuration information are selected from at least one of the following configuration information: the type of the search space, the RNTI of the search space, the dciformate, the length of the DCI, the candidate proportion of the PDCCH, and the search space set.

For example, the third information includes: x bits, which are used to indicate the combination of the values of 2 kinds of configuration information, including searchspace set and candidate proportion. Assuming that the search space sets are divided into 5 groups, 5 bits are used, one group for each bit, indicating which search space sets need to be detected. While the candidate ratios are also indicated, assuming there are 4 candidate ratios, there can be two ways, one is 2 bits for each set of search space set (in this case, x equals 15). The other is a common 2-bit indication for all search space sets (in this case, x equals 7).

The indication information itself may be an individual indication for each UE, or may be a common indication.

For example, if the combination indicated by the current indication information only contains one, i.e., the ratio of PDCCH candidates, and there are 3 ratio states, then 2 bits of indication information are required.

When the common indication is adopted, each message only contains 2 bits, and the UE detecting the message follows the same control channel detection message;

when the UE indicates separately, there are two ways, one is that each UE detects its own indication information. The other is that multiplexing of a plurality of UEs is in the same indication information, and each UE corresponds to different 2 bits in the indication information. The other first, second and fourth information are indicated in a similar manner.

4. Fourth information indicating a detection status of at least one paging occasion to follow.

The indication information can also be used for indicating the paging state in the RRC IDLE state, the effect similar to that of the WUS indicates whether the terminal has effective paging message transmission at the paging moment, if the terminal does not have the effective paging message transmission, the terminal does not need to detect a control channel for scheduling the paging message, the low power consumption mode can be continuously maintained, and the energy-saving effect is achieved. Except that the transmission resources are different from WUS, which occupies the full bandwidth and one or more sub-frame transmissions, where the transmission resources of the indication information are determined by the time and/or frequency domain resources of the transmission synchronization signal/physical broadcast channel block SSB.

Indicating form of indicating signaling

In the embodiment of the present invention, the indication signaling may be indicated in the following manner:

a) the indication signaling may be common indication signaling, that is, the indication content of the signaling is the same for all UEs;

b) the indication signaling comprises indication signaling of m terminals, wherein m is a positive integer greater than or equal to 1;

in this way, the bits occupied by different UEs in the signaling by the indication information are different, and in this way, the control information may be different for different UEs.

c) The indication signaling is terminal-specific signaling.

The indication information may indicate a case where the UE of 1 or more slots needs to detect the control information. Wakeup or configuration information for one or more DRX cycles may also be indicated.

In the embodiment of the present invention, the base station may send configuration information through a high-level signaling, where the configuration information is used to notify a terminal whether to detect the indication signaling.

Referring to fig. 5, fig. 5 is a flowchart illustrating a transmission method of indication signaling according to a second embodiment of the present invention, where the transmission method is applied to a terminal and includes:

step 51: receiving indication signaling on a specified transmission resource, the specified transmission resource being determined by a time domain and/or frequency domain resource transmitting the SSB, the indication signaling indicating at least one of the following information:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

Optionally, the method further includes:

Optionally, the indication signaling is a common indication signaling; or,

The indication signaling is terminal-specific signaling.

Optionally, the method further includes:

Referring to fig. 6, fig. 6 is a schematic structural diagram of a base station according to a third embodiment of the present invention, where the base station 60 includes:

a transceiver 61 configured to send an indication signaling on a specified transmission resource, the specified transmission resource being determined by a time domain and/or frequency domain resource of a transmission SSB, the indication signaling indicating at least one of the following information:

first information indicating an active state in a next at least one Discontinuous Reception (DRX) cycle;

the third information is used for indicating the detection state of the PDCCH to be detected;

Optionally, the base station further includes:

the processor is used for coding the indication signaling through a channel coding mode, or a repeated coding mode, or a coding mode that the information bit and the coding bit have a mapping relation;

the transceiver 61 is further configured to send the encoded indication signaling on the designated transmission resource;

or

A processor configured to carry the indication signaling by a sequence;

the transceiver 61 is further configured to transmit the sequence on the designated transmission resource.

indicating whether a time position of a restriction relationship between a DRX-ShortCycle and a DRX-StartOffset parameter and/or a time position of a restriction relationship between a DRX-LongCycle and a DRX-StartOffset parameter and/or a time position of a restriction of a DRX-SlotOffset parameter starts or not in at least one next DRX cycle; or,

Optionally, the transceiver 61 is further configured to send, through a high-level signaling, configurations of multiple sets of DRX parameters, where a configuration of at least a part of DRX parameters in each set is different from configurations of other sets of DRX parameters; wherein the second information is used to indicate one of the configurations of the multiple sets of DRX parameters.

Optionally, the transceiver 61 is further configured to send a configuration of a set of DRX parameters through a high-layer signaling;

Optionally, the third information includes: a status indication message, where the status indication message corresponds to a detection status of the PDCCH, each detection status includes a combination of values of n types of configuration information, n is a positive integer greater than or equal to 1, and the n types of configuration information are selected from at least one of the following configuration information: the method comprises the following steps of searching the type of a space, searching the space set, Radio Network Temporary Identifier (RNTI) of the searching space, format DCI format of downlink control information, DCI length and candidate proportion of PDCCH.

Optionally, the transceiver 61 is further configured to send a corresponding relationship between status indication information and detection statuses of PDCCHs through a high-level signaling, where each of the status indication information corresponds to one of the detection statuses.

Optionally, the indication signaling is a common indication signaling; or,

The indication signaling is terminal-specific signaling.

Optionally, the transceiver 61 is further configured to send configuration information through a high-level signaling, where the configuration information is used to notify the terminal whether to detect the indication signaling.

Referring to fig. 7, fig. 7 is a schematic structural diagram of a terminal according to a fourth embodiment of the present invention, where the terminal 70 includes:

a transceiver 71 configured to receive indication signaling on a specified transmission resource, the specified transmission resource being determined by a time domain and/or frequency domain resource of a transmission SSB, the indication signaling indicating at least one of the following information:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

Optionally, the transceiver 71 is further configured to receive configurations of multiple sets of DRX parameters sent by the base station through a high-level signaling, where the configuration of at least part of DRX parameters in each set is different from the configurations of DRX parameters in other sets; wherein the second information is used to indicate one of the configurations of the multiple sets of DRX parameters.

Optionally, the transceiver 71 is further configured to receive a configuration of a set of DRX parameters sent by a base station through a high-level signaling; wherein the second information comprises a scaling factor, and the DRX parameter applied to the at least one DRX cycle is determined by the configuration of the DRX parameter configured by the higher layer signaling and the scaling factor.

Optionally, the transceiver 71 is further configured to receive a correspondence between status indication information sent by a base station through a high-level signaling and a detection status of a PDCCH, where each of the status indication information corresponds to one of the detection statuses.

Optionally, the indication signaling is a common indication signaling; or,

The indication signaling is terminal-specific signaling.

Optionally, the transceiver 71 is further configured to receive configuration information sent by a base station through a high-level signaling, where the configuration information is used to notify the terminal whether to detect the indication signaling.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a base station according to a fifth embodiment of the present invention, where the base station 80 includes: a processor 81 and a memory 82. In the embodiment of the present invention, the base station 80 further includes: a computer program stored on the memory 82 and executable on the processor 81, the computer program when executed by the processor 81 performing the steps of:

third information for indicating a detection state of the PDCCH;

The processor 81 is responsible for managing the bus architecture and general processing, and the memory 82 may store data used by the processor 81 in performing operations.

sending the coded indication signaling on the specified transmission resource;

or

Carrying the indication signaling through a sequence;

transmitting the sequence on the designated transmission resource.

Optionally, the computer program may further implement the following steps when being executed by the processor 81:

Optionally, the indication signaling is a common indication signaling; or,

The indication signaling is terminal-specific signaling.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a terminal according to a sixth embodiment of the present invention, where the terminal 90 includes: a processor 91 and a memory 92. In this embodiment of the present invention, the terminal 90 further includes: a computer program stored on the memory 92 and executable on the processor 91, the computer program when executed by the processor 91 performing the steps of:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

The processor 91 is responsible for managing the bus architecture and general processing, and the memory 92 may store data used by the processor 91 in performing operations.

Optionally, the computer program when executed by the processor 91 may further implement the steps of:

Optionally, the indication signaling is a common indication signaling; or,

The indication signaling is terminal-specific signaling.

The present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the transmission method of the indication signaling in any of the above embodiments.

Such computer-readable media, which include both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A transmission method of indication signaling is applied to a base station, and is characterized by comprising the following steps:

transmitting indication signaling on a specified transmission resource, the specified transmission resource being determined by time domain and/or frequency domain resources of a transmission synchronization signal/physical broadcast channel block, SSB, the indication signaling indicating at least one of the following information:

third information, which is used for indicating the detection state of a Physical Downlink Control Channel (PDCCH);

2. The method of claim 1, wherein the designated transmission resources are located in an Orthogonal Frequency Division Multiplexing (OFDM) symbol in which the SSB is transmitted.

3. The method of claim 2, wherein the OFDM symbol in which the SSB is transmitted has 4, and wherein the specified transmission resource is located in the 1 st OFDM symbol of the SSB.

4. The method of claim 3, wherein the designated transmission resources are located on both sides of the frequency domain resource of the primary synchronization signal in the 1 st OFDM symbol, and wherein the subcarriers used for transmission are the same as the subcarriers used for transmission of the Physical Broadcast Channel (PBCH) on the 3 rd OFDM symbol of the SSB.

5. The method of claim 1, wherein the designated transmission resources are located in OFDM symbols adjacent to OFDM symbols of the SSB.

6. The method of claim 1, wherein the sending the indication signaling on the designated transmission resource comprises:

sending the coded indication signaling on the specified transmission resource;

or

Carrying the indication signaling through a sequence;

transmitting the sequence on the designated transmission resource.

7. The method of claim 1, wherein the first information indicating an active state for at least one next DRX cycle comprises:

indicating whether a discontinuous reception-active period timer DRX-onDuration timer is started or not in a time position meeting the constraint relation of a discontinuous reception-short period DRX-short period and a discontinuous reception-starting offset DRX-StartOffset parameter and/or a time position meeting the constraint relation of a discontinuous reception-long period DRX-Long period and a DRX-StartOffset parameter and/or a time position meeting the constraint of a DRX-SlotOffset parameter in at least one next DRX period; or,

indicating whether to detect PDCCH during an active period of the next at least one DRX cycle; or,

8. The method of claim 1, wherein the DRX parameter comprises at least one of: discontinuous reception-active period timer drx-onDurationTimer, discontinuous reception-inactive period timer drx-InactivationTimer, Downlink discontinuous reception-hybrid automatic repeat request-round trip time timer drx-HARQ-RTT-TimerDL, uplink discontinuous reception-hybrid automatic repeat request-round trip time timer drx-HARQ-RTT-TimeUL, downlink discontinuous reception-repeat timer drx-RecransmissionTimerDL, uplink discontinuous reception-repeat timer drx-RecransmissionTimeUL, discontinuous reception-Long period start offset drx-Long period Start offset drx, short period discontinuous reception slotted DRX, and drx-drx.

9. The method of claim 1, further comprising:

10. The method of claim 1, further comprising:

11. The method of claim 1, wherein the third information comprises: a status indication message, where the status indication message corresponds to a detection status of the PDCCH, each detection status includes a combination of values of n types of configuration information, n is a positive integer greater than or equal to 1, and the n types of configuration information are selected from at least one of the following configuration information: the method comprises the following steps of searching the type of a space, searching the space set, Radio Network Temporary Identifier (RNTI) of the searching space, format DCI format of downlink control information, DCI length and candidate proportion of PDCCH.

12. The method of claim 11, further comprising:

13. The method of claim 1, wherein the third information comprises: x bits for indicating a combination of values of y types of configuration information, wherein each type of configuration information corresponds to at least 1 bit of the x bits, and the y types of configuration information are selected from at least one of the following configuration information: the type of search space, the search space set, the RNTI of the search space, the DCI format, the length of the DCI, and the candidate proportion of the PDCCH.

14. The method of claim 1,

the indication signaling is public indication signaling; or,

The indication signaling is terminal-specific signaling.

15. The method of claim 1, further comprising:

16. A transmission method of indication signaling is applied to a terminal, and is characterized by comprising the following steps:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

17. The method of claim 16, wherein the designated transmission resources are located in an OFDM symbol in which the SSB is transmitted.

18. The method of claim 17, wherein the OFDM symbol over which the SSB is transmitted has 4, and wherein the specified transmission resource is located in the 1 st OFDM symbol of the SSB.

19. The method of claim 18, wherein the designated transmission resources are located on both sides of the frequency domain resource of the primary synchronization signal in the 1 st OFDM symbol, and wherein the subcarriers used for transmission are the same as the subcarriers on which PBCH is transmitted on the 3 rd OFDM symbol of the SSB.

20. The method of claim 16, wherein the designated transmission resources are located in OFDM symbols adjacent to OFDM symbols of the SSB.

21. The method of claim 16, wherein the first information indicating an active state for at least one next DRX cycle comprises:

22. The method of claim 16, wherein the DRX parameters comprise at least one of: drx-onDurationTimer, drx-InactivityTimer, drx-HARQ-RTT-TimerDL, drx-HARQ-RTT-TimerUL, drx-retransmission TimerDL, drx-retransmission TimerUL, drx-longCycleStartOffset, shortDRX, and drx-SlotOffset.

23. The method of claim 16, further comprising:

24. The method of claim 16, further comprising:

25. The method of claim 16, wherein the third information comprises: a status indication message, where the status indication message corresponds to a detection status of the PDCCH, each detection status includes a combination of values of n types of configuration information, n is a positive integer greater than or equal to 1, and the n types of configuration information are selected from at least one of the following configuration information: the type of search space, the search space set, the RNTI of the search space, the DCI format, the length of the DCI, and the candidate proportion of the PDCCH.

26. The method of claim 25, further comprising:

27. The method of claim 16, wherein the third information comprises: x bits for indicating a combination of values of y types of configuration information, wherein each type of configuration information corresponds to at least 1 bit of the x bits, and the y types of configuration information are selected from at least one of the following configuration information: the type of search space, the search space set, the RNTI of the search space, the DCI format, the length of the DCI, and the candidate proportion of the PDCCH.

28. The method of claim 16,

the indication signaling is public indication signaling; or,

The indication signaling is terminal-specific signaling.

29. The method of claim 16, further comprising:

30. A base station, comprising:

a transceiver configured to send an indication signaling on a specified transmission resource, the specified transmission resource being determined by a time domain and/or frequency domain resource of a transmission SSB, the indication signaling indicating at least one of the following information:

third information for indicating a detection state of the PDCCH;

31. A terminal, comprising:

first information indicating an active state for at least one next DRX cycle;

third information for indicating a detection state of the PDCCH;

32. A base station comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor implements the method of transmission of indication signaling according to any of claims 1-15 when executing the program.

33. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the method of transmission of indication signaling according to any of claims 16-29.

34. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method for transmission of indication signaling according to any one of claims 1 to 29.