CN112312525B

CN112312525B - Power-saving signal configuration and transmission method and device

Info

Publication number: CN112312525B
Application number: CN201910985352.XA
Authority: CN
Inventors: 罗晨; 王加庆; 杨美英; 赵铮
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-08-01
Filing date: 2019-10-16
Publication date: 2022-03-22
Anticipated expiration: 2039-10-16
Also published as: CN112312525A

Abstract

The application discloses a power-saving signal configuration and transmission method and device. In the application, a base station configures power saving signal search space configuration information, first subset indication information and second subset indication information, and sends the power saving signal search space configuration information, the first subset indication information and the second subset indication information to a terminal. The power saving signal search space configuration information comprises a monitoring period, the monitoring period is equal to a short DRX period or a value shorter than the long DRX period, the first subset indication information is used for indicating a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used for indicating a second subset of the monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period.

Description

Power-saving signal configuration and transmission method and device

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a power saving signal configuration and transmission method and apparatus.

Background

In the 5G NR system, in order to obtain downlink scheduling information, a terminal needs to monitor a Physical Downlink Control Channel (PDCCH) at each PDCCH monitoring opportunity (PDCCH monitoring occasion) to determine whether user scheduling information is transmitted. Wherein, one PDCCH monitoring opportunity corresponds to a time length, for example, the time length may be several symbols. A process of performing PDCCH monitoring at one PDCCH monitoring opportunity is a primary PDCCH decoding process, and whether the PDCCH transmits Downlink Control Information (DCI) carrying user scheduling information is determined according to a Cyclic Redundancy Check (CRC) check result. If the PDCCH transmits the user scheduling information, the terminal can obtain a positive CRC check result and can obtain the scheduling information carried in the DCI; otherwise, if the CRC check result is a negative value, the terminal cannot obtain any information in the DCI.

When the terminal configures Discontinuous Reception (DRX), the terminal will not continuously monitor the PDCCH. The terminal monitors the PDCCH only when a DRX activation period (DRX on-duration) or an inactivity timer (inactivity timer) is not timed out, so as to reduce the power consumption of the terminal. The terminal can configure a long DRX period or a short DRX period, and can also configure the long DRX period and the short DRX period at the same time. Wherein the long DRX cycle may be an integer multiple of the short DRX cycle.

Before the active period (on-duration) of the DRX cycle, the base station may send a power-saving signal to the terminal for dynamically indicating whether the terminal performs PDCCH monitoring during the next active period(s) of the DRX cycle. The power saving signal is a physical layer signal of a PDCCH type, and the monitoring process of the power saving signal is consistent with the monitoring behavior of a PDCCH scheduled by a user.

How to match the monitoring opportunity of the power saving signal with the activation period of the DRX is a problem to be solved at present when the terminal configures a long DRX cycle and a short DRX cycle at the same time.

Disclosure of Invention

The embodiment of the application provides a power-saving signal configuration and transmission method and device.

In a first aspect, a power saving signal configuration method is provided, including:

the base station configures power saving signal search space configuration information, first subset indication information and second subset indication information, and transmits the power saving signal search space configuration information and the first subset indication information and the second subset indication information to a terminal. Wherein the power saving signal search space configuration information includes a monitoring period, the monitoring period is equal to a short DRX period or shorter than a long DRX period, the first subset indication information is used to indicate a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used to indicate a second subset of monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period.

Optionally, the monitoring period included in the first subset is every N-1 monitoring periods in the monitoring period, where N is an integer and N is greater than or equal to 0; the second subset comprises M-1 monitoring periods at intervals in the monitoring periods, wherein M is an integer and M is K × M, M is an integer and M is larger than or equal to 1, and K is a multiple of the long DRX period compared with the short DRX period.

Optionally, a value of the first subset indication information is N, a monitoring period included in the first subset indicated by the first subset indication information is N-1 monitoring periods every interval in the monitoring periods, where N is an integer and N is greater than or equal to 0; the value of the second subset indication information is M, the second subset indicated by the second subset indication information includes M-1 monitoring cycles at intervals in the monitoring cycles, M is an integer and M is K × M, M is an integer and M is greater than or equal to 1, and K is a multiple of the long DRX cycle compared with the short DRX cycle.

Optionally, the search space configuration information further includes a first listening opportunity offset and a second listening opportunity offset; the first monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used when the terminal is in a short DRX cycle, and the second monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used when the terminal is in a long DRX cycle.

Alternatively, the monitoring opportunity offset may be a display indication in the search space configuration, or may be calculated by an interval value from the DRX active period starting point configured by the higher layer signaling, or may be an interval range from the DRX active period starting point configured by the search space or the higher layer signaling, or may be a monitoring offset value configured by the search space within the interval range from the DRX active period starting point configured by the search space or the higher layer signaling.

That is, at least one of the first and second listening opportunity offsets is configured by one of:

displaying an indication by searching for the listening opportunity offset indication information in the spatial configuration information;

indicating by an interval value configured by high-layer signaling, wherein the interval value is an interval value from a DRX activation period starting point;

indicating by searching a space or an interval range configured by high-level signaling, wherein the interval range is an interval range from a DRX activation period starting point;

the method comprises the steps of indicating by a monitoring deviation value configured in an interval range configured by a search space or higher layer signaling, wherein the interval range is an interval range from the starting point of the DRX active period.

Optionally, the search space configuration information further includes a first listening time window and a second listening time window; the first monitoring time window is the time slot length of continuously monitoring the electricity-saving signal when the terminal is in a short DRX period, and the second monitoring time window is the time slot length of continuously monitoring the electricity-saving signal when the terminal is in a long DRX period.

Optionally, the search space configuration information further includes a first set of control resources and a second set of control resources associated with the search space; the first set of control resources is used to indicate resources occupied by the power saving signal during the short DRX cycle, and the second set of control resources is used to indicate resources occupied by the power saving signal during the long DRX cycle.

Optionally, the search space configuration information further includes a first power saving signal listening pattern and a second power saving signal listening pattern; the first power saving signal monitor pattern is a power saving signal monitor pattern used when the terminal is in a short DRX cycle, and the second power saving signal monitor pattern is a power saving signal monitor pattern used when the terminal is in a long DRX cycle.

Optionally, the method further comprises: the base station determines a DRX period of the terminal according to DRX configuration information and data transmission conditions of the terminal, searches space configuration information according to the DRX period of the terminal and the power-saving signal, determines a monitoring opportunity of the power-saving signal according to one of the first subset indication information and the second subset indication information, and sends the power-saving signal according to the monitoring opportunity of the power-saving signal; wherein the DRX period of the terminal comprises a short DRX period or a long DRX period.

In a second aspect, a power saving signal transmission method is provided, including: a terminal receives power-saving signal search space configuration information, first subset indication information and second subset indication information sent by a base station; wherein the power saving signal search space configuration information includes a monitoring period, the monitoring period is equal to a short DRX period or shorter than a long DRX period, the first subset indication information is used to indicate a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used to indicate a second subset of monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period. The terminal monitors the power saving signal according to the power saving signal search space configuration information and the first subset indication information and the second subset indication information; and when the terminal is in the short DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the first subset indicated by the first subset indication information, and when the terminal is in the long DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the second subset indicated by the second subset indication information.

Optionally, the monitoring period included in the first subset is every N-1 monitoring periods in the monitoring period, N is an integer and N is greater than or equal to 0; the second subset comprises M-1 monitoring periods at intervals in the monitoring periods, wherein M is an integer and M is K × M, M is an integer and M is larger than or equal to 1, and K is a multiple of the long DRX period compared with the short DRX period.

Optionally, the power saving signal search space configuration information further includes a first monitoring opportunity offset and a second monitoring opportunity offset, wherein the first monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used by the terminal in a short DRX cycle, and the second monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used by the terminal in a long DRX cycle; the terminal monitors the power-saving signal according to the power-saving signal search space configuration information, and the method comprises the following steps: when the terminal is in a short DRX period, monitoring a power-saving signal according to the position offset corresponding to the first monitoring opportunity; and when the terminal is in the long DRX period, monitoring the power-saving signal according to the position offset corresponding to the second monitoring opportunity.

That is, at least one of the first and second listening opportunity offsets is determined by one of:

determining according to the indication information of the offset of the listening opportunity in the configuration information of the search space;

determining according to an interval value configured by a high-level signaling, wherein the interval value is an interval value from a DRX activation period starting point;

determining according to an interval range configured by a search space or a high-level signaling, wherein the interval range is an interval range from a DRX activation period starting point;

and determining according to a monitoring offset value configured in an interval range configured in a search space or higher layer signaling, wherein the interval range is an interval range from the starting point of the DRX active period.

Optionally, the power saving signal search space configuration information further includes a first monitoring opportunity offset and a second monitoring opportunity offset, wherein the first monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used by the terminal in a short DRX cycle, and the second monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used by the terminal in a long DRX cycle; the terminal monitors the power-saving signal according to the power-saving signal search space configuration information, and the method comprises the following steps: when the terminal is in a short DRX period, continuously monitoring the power-saving signal in a first monitoring opportunity offset range corresponding to the first monitoring opportunity offset; and when the terminal is in the long DRX period, continuously monitoring the power-saving signal in a second monitoring opportunity offset range corresponding to the second monitoring opportunity offset.

Optionally, the power saving signal search space configuration information further includes a first monitoring opportunity offset and a second monitoring opportunity offset, wherein the first monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used by the terminal in a short DRX cycle, and the second monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used by the terminal in a long DRX cycle; the terminal monitors the power-saving signal according to the power-saving signal search space configuration information, and the method comprises the following steps: when the terminal is in a short DRX period, monitoring the power-saving signal according to the offset value configured in the offset range of the first monitoring opportunity corresponding to the offset of the first monitoring opportunity; and when the terminal is in the long DRX period, monitoring the power-saving signal according to the offset value configured in the offset range of the second monitoring opportunity corresponding to the offset of the second monitoring opportunity. The offset value may be an indication displayed by an offset value centrally arranged in the search space, or may be an indication hidden by an offset interval from the starting position of the DRX active period arranged by a higher layer signaling.

Optionally, the power saving signal search space configuration information further includes a first monitoring time window and a second monitoring time window, where the first monitoring time window is a time slot length for continuously monitoring the power saving signal when the terminal is in the short DRX cycle, and the second monitoring time window is a time slot length for continuously monitoring the power saving signal when the terminal is in the long DRX cycle; the terminal monitors the power-saving signal according to the power-saving signal search space configuration information, and the method comprises the following steps: when the terminal is in a short DRX period, monitoring a power-saving signal in a corresponding time slot length according to the first monitoring time window; and when the terminal is in the long DRX period, monitoring the power-saving signal in the corresponding time slot length according to the second monitoring time window.

Optionally, the power saving signal search space configuration information further includes a first control resource set and a second control resource set associated with the search space, where the first control resource set is used to indicate time-frequency domain resources occupied by the power saving signal in the short DRX cycle, and the second control resource set is used to indicate time-frequency domain resources occupied by the power saving signal in the long DRX cycle; the terminal monitors the power-saving signal according to the power-saving signal search space configuration information, and the method comprises the following steps: when the terminal is in a short DRX period, monitoring a power-saving signal in a corresponding time-frequency domain resource according to the first control resource set; and when the terminal is in the long DRX period, monitoring the power-saving signal in the corresponding time-frequency domain resource according to the second control resource set.

Optionally, the power saving signal search space configuration information further includes a first power saving signal monitor pattern and a second power saving signal monitor pattern, where the first power saving signal monitor pattern is a power saving signal monitor pattern used when the terminal is in a short DRX cycle, and the second power saving signal monitor pattern is a power saving signal monitor pattern used when the terminal is in a long DRX cycle; the terminal monitors the power-saving signal according to the power-saving signal search space configuration information, and the method comprises the following steps: when the terminal is in a short DRX period, carrying out power-saving signal monitoring according to the first power-saving signal monitoring pattern; and when the terminal is in the long DRX period, carrying out power-saving signal monitoring according to the second power-saving signal monitoring pattern.

In a third aspect, a base station is provided, including: a processing module, configured to configure power saving signal search space configuration information, a first subset indication information and a second subset indication information, where the power saving signal search space configuration information includes a monitoring cycle, the monitoring cycle is equal to a short Discontinuous Reception (DRX) cycle or shorter than a long DRX cycle, the first subset indication information is used to indicate a first subset of monitoring opportunities corresponding to the monitoring cycle, the second subset indication information is used to indicate a second subset of monitoring opportunities corresponding to the monitoring cycle, the first subset corresponds to monitoring opportunities of a power saving signal when a terminal is in the short DRX cycle, and the second subset corresponds to monitoring opportunities of the power saving signal when the terminal is in the long DRX cycle; a sending module, configured to send the power saving signal search space configuration information and the first subset indication information and the second subset indication information to the terminal.

In a fourth aspect, a terminal is provided, including: the receiving module is used for receiving power-saving signal search space configuration information, first subset indication information and second subset indication information sent by a base station; wherein the power saving signal search space configuration information comprises a monitoring period, the monitoring period is equal to a short Discontinuous Reception (DRX) period or shorter than a long DRX period, the first subset indication information is used for indicating a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used for indicating a second subset of the monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period; the processing module is used for monitoring the power-saving signal according to the power-saving signal search space configuration information and the first subset indication information and the second subset indication information; and when the terminal is in the short DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the first subset indicated by the first subset indication information, and when the terminal is in the long DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the second subset indicated by the second subset indication information.

In a fifth aspect, a communication apparatus is provided, including: a processor, memory, transceiver; the processor is configured to read computer instructions in the memory and execute the method according to any one of the above first aspects.

In a sixth aspect, a communication apparatus is provided, including: a processor, memory, transceiver; the processor is configured to read the computer instructions in the memory and execute the method according to any one of the above second aspects.

In a seventh aspect, there is provided a computer-readable storage medium having stored thereon computer-executable instructions for causing the computer to perform the method of any of the above first aspects.

In an eighth aspect, there is provided a computer-readable storage medium having stored thereon computer-executable instructions for causing the computer to perform the method of any of the second aspects above.

In the above embodiment of the present application, one listening cycle is configured for the power saving signal, and the first subset indication information and the second subset indication information are configured for the short DRX cycle and the long DRX cycle, respectively, wherein the first subset indication information is used to indicate a first subset of the listening periods, the second subset indication information is used to indicate a second subset of the listening periods, thereby enabling the terminal to monitor the power saving signal according to the monitoring opportunity corresponding to the first subset when in the short DRX period, monitoring the power saving signal according to the monitoring opportunity corresponding to the second subset when the terminal is in the long DRX period, and furthermore, the terminal can flexibly monitor the power saving signal under the condition that the short DRX period and the long DRX period are configured at the same time, and the problem that the moment of the power saving signal monitoring opportunity is not matched with the starting point of the activation period (on-duration) of the DRX period due to the dynamic change of the short DRX period and the long DRX period is solved.

Drawings

Fig. 1 illustrates a diagram of a DRX cycle;

fig. 2 is a schematic diagram illustrating a configuration flow of a power saving signal implemented at a base station side in an embodiment of the present application;

fig. 3 is a schematic diagram illustrating a power saving signal receiving flow implemented by a terminal side in an embodiment of the present application;

fig. 4 is a schematic structural diagram illustrating a base station in the embodiment of the present application;

fig. 5 is a schematic structural diagram illustrating a terminal in an embodiment of the present application;

fig. 6 is a schematic structural diagram schematically illustrating a communication apparatus in an embodiment of the present application;

fig. 7 schematically shows a structure of another communication apparatus in the embodiment of the present application.

Detailed Description

The embodiment of the application provides a physical layer transmission design scheme of a power-saving signal based on a PDCCH (physical Downlink control channel), which can be suitable for monitoring the power-saving signal under the condition that a terminal is configured with a long DRX period and a short DRX period at the same time.

The DRX mechanism and the configuration of PDCCH monitoring opportunities are first briefly explained below.

Fig. 1 illustrates a DRX cycle. One DRX cycle includes a DRX active period (on-duration) and a DRX inactive period (DRX off, also called openness for DRX). During one DRX cycle, the terminal monitors the PDCCH only during a DRX active period (on-duration) period, and during a DRX inactive period (opportunity for DRX), the terminal enters a sleep mode in which the PDCCH is not received to reduce power consumption.

The DRX information (DRX-Info, i.e., DRX parameter) specifically includes the following items:

-DRX activation timer (DRX-onDurationTimer): the duration of continuously monitoring the PDCCH from the beginning of the DRX period;

-DRX slot offset (DRX-SlotOffset): a time delay from the beginning of the DRX activation timer (DRX-onDurationTimer);

-DRX inactivity timer (DRX-inactivity timer): when the PDCCH indicates that new Uplink (UL) or Downlink (DL) data is transmitted, the PDCCH is started after receiving the data, and when the timer is overtime, the terminal enters an inactive state;

DRX downlink retransmission timer (DRX-retransmission timerdl): for each downlink Hybrid Automatic Repeat reQuest (HARQ) process, the maximum duration before the downlink retransmission data arrives;

DRX uplink retransmission timer (DRX-retransmission timer ul): for each uplink HARQ process, the maximum duration before the uplink retransmission data arrives;

long DRX cycle start offset (DRX-LongCycleStartOffset): the location where the long DRX cycle starts;

-long DRX cycle (DRX-LongCycle): the cycle length of the long DRX is integral multiple of the short DRX;

short DRX cycle (DRX-ShortCycle): the cycle length of the short DRX, which is an optional parameter;

short DRX cycle timer (DRX-ShortCycleTimer): during the running period of the timer, the terminal adopts a short DRX period, the value of the short DRX period is integral multiple of the short DRX, and the parameter is an optional parameter;

DRX downlink HARQ RTT timer (DRX-HARQ-RTT-TimerDL): for each downlink HARQ process, a Media Access Control (MAC) entity needs to perform a minimum duration before a downlink HARQ retransmission;

DRX uplink HARQ RTT timer (DRX-HARQ-RTT-timerll): for each uplink HARQ process, the MAC entity needs to perform a minimum duration before uplink HARQ retransmission.

The terminal is in an active state during any one of a DRX activation timer (DRX-onDurationTimer), a DRX inactivity timer (DRX-inactivity timer), a DRX downlink retransmission timer (DRX-retransmission timer dl), and a DRX uplink retransmission timer (DRX-retransmission timer ul) is in an active state.

Under the condition that the terminal configures a short DRX cycle and a long DRX cycle at the same time, if the terminal receives a MAC CE (i.e., a DRX Command MAC CE, where CE is an acronym of control element and denotes a control unit) carrying a DRX Command or a DRX inactivity timer (DRX-inactivity timer) expires, the terminal enters the short DRX cycle and starts or restarts the short DRX cycle timer (DRX-short cycletimer). When a short DRX cycle timer (DRX-ShortCycleTimer) times out, the terminal enters a long DRX cycle. If new data arrives in the active period of the DRX, the terminal starts or restarts a DRX inactivity timer (DRX-inactivity timer).

The monitoring opportunity of the PDCCH is configured in a mode of searching a space set. One search space is composed of a set of candidate PDCCHs, and the terminal needs to blind-detect the PDCCHs in a desired DCI format (DCI format) within the search space.

The configuration parameters of the search space of the PDCCH may include:

-an index of the set of search spaces, search space ID;

-a control resource set number, i.e. a CORESET ID, for establishing a connection of the search space s to the control resource set p;

PDCCH listening period k_p,sAnd offset value o_p,sThe units are slots (slots), and the terminal determines the slots for monitoring the downlink control channel according to the configuration parameters;

-a monitoring pattern of PDCCH within a time slot;

the number of PDCCH candidates (PDCCH candidates) included in each aggregation level in the search space

The supported aggregation level comprises { 124816 } and is configured through independent parameters;

-a flag searchspactetype for distinguishing whether the current search space is a common search space or a terminal-specific search space;

PDCCH listening time window, i.e. the number of consecutive time slots in which the search space set exists.

Introducing a power-saving signal before the activation period (on-duration) of the DRX can dynamically instruct the terminal whether to perform PDCCH monitoring during the activation period of the next DRX cycle or cycles. Power saving signal a PDCCH type physical layer signal whose monitoring process is consistent with the PDCCH monitoring behavior scheduled by the user.

According to the above description, the monitoring opportunities of PDCCH are periodic and have fixed values, and it is possible to receive PDCCH at each PDCCH monitoring opportunity. If the terminal configures a long DRX cycle and a short DRX cycle at the same time, the monitoring period for the PDCCH-based power saving signal may be affected by the DRX cycle, and the effect includes:

(1) if the monitoring period of the power saving signal based on the PDCCH is configured according to the short DRX period, the long DRX period comprises a plurality of PDCCH monitoring opportunities, namely, the monitoring of the power saving signal is carried out for a plurality of times in one long DRX period, and the condition causes unnecessary power consumption of the terminal.

(2) If the monitoring period of the PDCCH-based power saving signal is configured according to the long DRX cycle, the time when the short DRX cycle timer (DRX-ShortCycleTimer) is started or restarted is different due to burstiness of data arrival, which may cause the time when the terminal performs long DRX cycle monitoring to be unfixed. The terminal monitors the power saving signal according to the long DRX period, which results in that no monitoring opportunity of the power saving signal exists before the active period (on-duration) of the long DRX period, or the monitoring opportunity of the power saving signal has a longer time interval from the active period (on-duration) of the long DRX period.

In order to solve the above problem, an embodiment of the present application provides a physical layer transmission design scheme for a power saving signal based on a PDCCH, which is applicable to a situation that a terminal configures a long DRX cycle and a short DRX cycle at the same time, so that when the terminal is in the short DRX cycle and the long DRX cycle, different monitoring opportunities are used for monitoring the power saving signal, so as to avoid that a time when the power saving signal monitoring opportunity occurs conflicts with a starting point of an active period (on-duration) of the DRX cycle due to dynamic changes of the short DRX cycle and the long DRX cycle.

Some technical terms in the embodiments of the present application will be described first.

In this embodiment, a "terminal," also referred to as User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice and/or data connectivity to a user, for example, a handheld device, a vehicle-mounted device, etc. with a wireless connection function. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.

The "base station" in the embodiment of the present application may be a RAN node or a base station. The RAN is the part of the network that accesses the terminal to the wireless network. A RAN node (or device) is a node (or device) in a radio access network, which may also be referred to as a base station. Currently, some examples of RAN nodes are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP), etc. In addition, in one network configuration, the RAN may include a Centralized Unit (CU) node and a Distributed Unit (DU) node.

It is to be understood that the terms "first," "second," and the like in the embodiments of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used are interchangeable under appropriate circumstances and can be implemented in sequences other than those illustrated or otherwise described herein with respect to the embodiments of the application, for example.

In the embodiment of the present application, for a case that a terminal configures two DRX cycles, that is, a long DRX cycle and a short DRX cycle, a base station configures a search space set for a PDCCH-based power saving signal, where the search space set includes an interception cycle, and the interception cycle is equal to the short DRX cycle or shorter than the long DRX cycle (for example, may be a common divisor of the long DRX cycle, or may not be a common divisor of the long DRX cycle). When the terminal is in the short DRX cycle, the monitoring opportunity of the terminal to the power saving signal is subset 1 of the monitoring opportunity corresponding to the monitoring cycle configured by the search space set. When the terminal is in the long DRX cycle, its monitoring opportunity for the power saving signal is subset 2 of the monitoring opportunity corresponding to the monitoring cycle configured by the search space set. The subset 1 and the subset 2 are determined by the monitoring behavior of the terminal, and respectively correspond to the monitoring rule 1 and the monitoring rule 2 of the terminal. The monitoring mode of the terminal to the power saving signal is different from the conventional monitoring mode of the PDCCH, the monitoring of the PDCCH is not carried out on each monitoring opportunity, but the monitoring of the power saving signal is carried out according to the DRX cycle of the terminal and the corresponding rule 1 or rule 2, and the principle is as follows: when the terminal is in the short DRX cycle, the monitoring of the power saving signal is performed according to rule 1. When the terminal is in the long DRX cycle, the monitoring of the power saving signal is performed according to rule 2.

Referring to fig. 2, a schematic diagram of a configuration flow of a power saving signal according to an embodiment of the present application is provided. As shown, the process may include:

s201: the base station configures power saving signal search space configuration information and first and second subset indication information.

The value of the monitoring period is equal to the value of the short DRX period or shorter than the value of the long DRX period (for example, the value may be a common divisor of the long DRX period, or may not be the common divisor of the long DRX period).

Alternatively, the base station may multiplex a search space set of a conventional PDCCH to configure search space configuration information (i.e., configuration parameters) of the power saving signal. Specifically, the base station may configure a search space set of the PDCCH, where the search space set includes a PDCCH monitoring period, and a value of the monitoring period is equal to a value of the short DRX period or shorter than a value of the long DRX period (for example, the value may be a common divisor of the long DRX period, or may not be the common divisor of the long DRX period).

The base station may further configure corresponding first subset indication information and second subset indication information for the short DRX cycle and the long DRX cycle, respectively. The first subset indication information is used to indicate a first subset of the listening opportunities corresponding to the listening period (i.e., the listening period included in the power saving signal search space configuration information), and the second subset indication information is used to indicate a second subset of the listening opportunities corresponding to the listening period. The first subset corresponds to the monitoring opportunities for power saving signals when the terminal is in the short DRX cycle, and the second subset corresponds to the monitoring opportunities for power saving signals when the terminal is in the long DRX cycle.

The monitoring period contained in the first subset is N-1 monitoring periods in each interval in the monitoring periods, N is an integer and is more than or equal to 0. The second subset includes M-1 monitoring periods at intervals in the monitoring periods, where M is an integer and M is K × M, M is an integer and M ≧ 1, and K is a multiple of the long DRX period compared with the short DRX period.

Optionally, a value of the first subset indication information is N, and a value of the second subset indication information is M, so that the monitoring rule 1 of the power saving signal used by the terminal in the short DRX cycle and the monitoring rule 2 of the power saving signal used by the terminal in the long DRX cycle can be configured to the terminal by configuring the values of the first subset indication information and the second subset indication information.

Where, according to the above description, rule 1 may represent: when the terminal is in a short DRX period, monitoring the power-saving signal once every N monitoring periods; rule 2 may represent: when the terminal is in the long DRX period, monitoring the power-saving signal once every M monitoring periods. When N is 0, it means that the terminal does not monitor the power saving signal when it is in the short DRX cycle, and when N >1, it means that the terminal monitors the power saving signal once every N-1 short DRX cycles within the short DRX cycle. Since M is K × M, M is an integer and M is greater than or equal to 1, it means that the terminal needs to monitor the power saving signal when it is in the long DRX cycle, where K is a multiple of the long DRX cycle compared to the short DRX cycle.

S202: and the base station transmits the power-saving signal search space configuration information and the first subset indication information and the second subset indication information to a terminal.

Optionally, in this step, the base station may send the first subset indication information and the second subset indication information to the terminal by using higher layer signaling. The power-saving signal search space configuration information can be configured in a conventional PDCCH search space configuration set mode.

The process shown in fig. 2 may further include the following steps:

the base station determines the DRX period of the terminal (namely, whether the DRX period of the terminal is a short DRX period or a long DRX period) according to the DRX configuration information and the data transmission condition of the terminal, searches space configuration information according to the DRX period of the terminal and the power-saving signal, determines the monitoring opportunity of the power-saving signal according to one of the first subset indication information and the second subset indication information, and sends the power-saving signal according to the monitoring opportunity of the power-saving signal.

For example, if the terminal is in the short DRX cycle, the base station determines a monitoring opportunity of the power saving signal according to the monitoring cycle configured in the power saving signal search space configuration information and the first subset indication information, and sends the power saving signal according to the monitoring opportunity of the power saving signal. And if the terminal is in the long DRX period, the base station determines the monitoring opportunity of the power-saving signal according to the monitoring period configured in the power-saving signal search space configuration information and the second subset indication information, and sends the power-saving signal according to the monitoring opportunity of the power-saving signal.

In the above embodiment of the present application, although one monitoring cycle is configured for the power saving signal, the first subset indication information and the second subset indication information are configured for the short DRX cycle and the long DRX cycle, respectively, so that the terminal monitors the power saving signal according to the monitoring opportunity corresponding to the first subset when the terminal is in the short DRX cycle, and monitors the power saving signal according to the monitoring opportunity corresponding to the second subset when the terminal is in the long DRX cycle, so that the terminal can flexibly monitor the power saving signal under the condition that the short DRX cycle and the long DRX cycle are configured at the same time, and the problem that a moment at which the monitoring opportunity of the power saving signal occurs is not matched with a starting point of an active period (on-duration) of the DRX cycle due to dynamic changes of the short DRX cycle and the long DRX cycle is solved. The method can be embodied in the following two aspects:

in the first aspect, in the conventional scheme, if the monitoring period of the PDCCH-based power saving signal is configured according to the short DRX cycle, the long DRX cycle includes multiple PDCCH monitoring opportunities, that is, multiple times of monitoring of the power saving signal will be performed in one long DRX cycle, which causes unnecessary power consumption of the terminal. By adopting the above embodiment of the present application, the monitoring opportunity corresponding to the second subset indicated by the second subset indication information is used for monitoring the power saving signal in the long DRX cycle, and the second subset is a subset of the short DRX monitoring cycle, for example, the monitoring of the power saving signal is performed every multiple short DRX cycles, where the lengths of the multiple short DRX cycles are equal to one long DRX cycle, so that the monitoring opportunity of the power saving signal included in the long DRX cycle is less than the PDCCH monitoring opportunity, and thus compared with the above conventional scheme, unnecessary power consumption generated by the terminal can be reduced.

In a second aspect, in a conventional scheme, if a monitoring period of a power saving signal based on a PDCCH is configured according to a long DRX cycle, since data arrival is bursty, a DRX inactivity timer (DRX-inactivity timer) is started after the data arrival, and the timer starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer) after timeout, a time at which the timer DRX-ShortCycleTimer is started or restarted is not fixed, and when the short DRX cycle timer (DRX-ShortCycleTimer) expires, a terminal enters the long DRX cycle, so that a starting point of an activation period of the power saving signal monitoring time by the terminal is not matched with a starting point of the long DRX cycle. In this way, the terminal monitors the power saving signal according to the long DRX cycle, which may result in that there may be no monitoring opportunity for the power saving signal before the active period (on-duration) of the long DRX cycle, or the monitoring opportunity for the power saving signal is longer than the time interval from the active period (on-duration) of the long DRX cycle. By adopting the above embodiment of the present application, the terminal does not always monitor the power saving signal according to the long DRX cycle, but monitors the power saving signal according to the monitoring opportunity corresponding to the first subset in the short DRX cycle, and monitors the power saving signal according to the monitoring opportunity corresponding to the second subset in the long DRX cycle. Compared with the conventional scheme, when the terminal is in the long DRX period, the terminal monitors the power saving signal according to the monitoring opportunity related to the long DRX period, so that the power saving signal can be received before the activation period of each long DRX period, and the longer time interval between the monitoring opportunity of the power saving signal and the activation period (on-duration) of the long DRX period can be avoided, thereby improving the possibility of receiving the power saving signal and reducing unnecessary power consumption generated by the terminal.

Optionally, in some embodiments, the power-saving signal search space configuration information may further include a first listening opportunity offset _1 and a second listening opportunity offset _2 corresponding to the short DRX cycle and the long DRX cycle, respectively. The first listener offset _1 is a listener offset of a power saving signal used when the terminal is in a short DRX cycle, and the second listener offset _2 is a listener offset of a power saving signal used when the terminal is in a long DRX cycle, that is, when the terminal is in a short DRX cycle, the offset of the listener power saving signal is the first listener offset _1, and when the terminal is in a long DRX cycle, the offset of the listener power saving signal is the second listener offset _2. Different monitoring opportunity offsets are configured aiming at the short DRX period and the long DRX period, and the monitoring opportunity of the power saving signal can be more flexibly configured aiming at the monitoring complexity and the reliability of the power saving signal required by different DRX periods.

Alternatively, the units of the first and second listening opportunity offsets offset _1 and offset _2 may be slots, and the starting position of the listening opportunity of the power-saving signal in the short DRX cycle may be determined according to the first listening opportunity offset _1, and the starting position of the listening opportunity of the power-saving signal in the long DRX cycle may be determined according to the second listening opportunity offset _2, by way of example, in units of slots.

Alternatively, the unit of the first and second listener offset offsets offset _1 and offset _2 may be a slot, and the first listener offset needs to satisfy the following relationship, for example, in units of slots:

o_s-DRXmod(k_s-shortDRX)-offset_1＝offset_short

wherein, O_s-DRXFor long DRX cycle start offset, k_s-shortDRXFor the short DRX cycle, amod (B) indicates performing modulo-B mode operation on the a value, offset _1 is the first listening opportunity offset, and offset _ short is the time interval between the power-saving signal and the short DRX cycle, and is configured by higher layer signaling.

The second listening opportunity offset needs to satisfy the following relationship:

o_s-DRX-offset_2＝offset_long

wherein, O_s-DRXOffset _2 is the offset of the second listening opportunity for the long DRX cycle start offset, and offset _ long is the time interval of the power saving signal from the long DRX cycle, configured by higher layer signaling.

Alternatively, the values of the first and second listening opportunity offsets offset _1 and offset _2 may be the same or different.

Optionally, the first listening opportunity offset may be configured in a variety of ways, for example, in any of the following ways:

configuration mode 1: displaying the indication by searching the spatial configuration information, namely, displaying the indication by searching the monitoring opportunity offset indication information in the spatial configuration information;

configuration mode 2: indicating by an interval value configured by high-layer signaling, wherein the interval value is an interval value from a DRX activation period starting point; specifically, an interval value from a DRX activation period start point may be configured through higher layer signaling, and the first listening opportunity offset may be determined according to the interval value;

configuration mode 3: indicating by searching a space or an interval range configured by high-level signaling, wherein the interval range is an interval range from a DRX activation period starting point; specifically, the interval range from the DRX activation period starting point may be configured by a search space or a higher layer signaling, and the first listening opportunity offset may be determined according to the interval value;

configuration mode 4: indicating by a monitoring deviation value configured in an interval range configured by a search space or a high-level signaling, wherein the interval range is an interval range from a DRX activation period starting point; specifically, the monitoring offset value within an interval range from the DRX activation period start point may be configured through a search space or higher layer signaling, and the first monitoring opportunity offset may be determined according to the configured monitoring offset value within the interval range.

Optionally, the second listening opportunity offset may be configured in various manners, for example, the configuration manner may be similar to any one of the above-mentioned configuration manners of the first listening opportunity offset, and will not be described in detail herein.

Optionally, in some embodiments, the power saving signal search space configuration information may further include a first duration _1 and a second duration _2 corresponding to the short DRX cycle and the long DRX cycle, respectively, for indicating a duration of continuously monitoring the power saving signal. Different monitoring time windows are configured aiming at the short DRX period and the long DRX period, so that the monitoring opportunity of the power-saving signal can be configured more flexibly, and the time windows can be configured according to requirements during specific implementation, thereby taking the reliability of power-saving signal transmission and the effective utilization of system resources into consideration.

Specifically, the first duration _1 is a slot length of continuously monitoring the power saving signal before the DRX active period when the terminal is in the short DRX cycle, and the second duration _2 is a slot length of continuously monitoring the power saving signal before the DRX active period when the terminal is in the long DRX cycle. That is, the continuous duration for monitoring the power-saving signal before the active period (on-duration) of the short DRX cycle is duration _1 when the terminal is in the short DRX cycle, and the continuous duration for monitoring the power-saving signal before the active period (on-duration) of the long DRX cycle is duration _2 when the terminal is in the long DRX cycle. The values of duration _1 and duration _2 may be the number of slots.

Optionally, the values of the first listening time window duration _1 and the second listening time window duration _2 may be the same or different.

Optionally, in some embodiments of the present application, the power saving signal search space configuration information may further include a first control resource set CORESET _1 and a second control resource set CORESET _2 associated with the search space, corresponding to the short DRX cycle and the long DRX cycle, respectively. Different control resource sets are configured aiming at the short DRX period and the long DRX period, so that time-frequency resources used by the power-saving signal can be more flexibly configured, and the control resource sets can be configured according to requirements during specific implementation, thereby taking the reliability of power-saving signal transmission and the effective utilization of system resources into consideration.

The first control resource set CORESET _1 is a resource occupied by the power saving signal in the short DRX cycle, and may include a time domain resource or a frequency domain resource, or may include both the frequency domain resource and the time domain resource; the second control resource set CORESET _2 is a resource occupied by the power saving signal in the long DRX cycle, and may include a time domain resource or a frequency domain resource, or may include both a frequency domain resource and a time domain resource.

Optionally, the first control resource set CORESET _1 and the second control resource set CORESET _2 may be the same resource set or different resource sets.

Optionally, in some embodiments, the power saving signal search space configuration information further includes a first power saving signal listening pattern _1 and a second power saving signal listening pattern _2, which correspond to the short DRX cycle and the long DRX cycle, respectively. That is, the first power saving signal monitor pattern _1 is a power saving signal monitor pattern used when the terminal is in the short DRX cycle, and the second power saving signal monitor pattern _2 is a power saving signal monitor pattern used when the terminal is in the long DRX cycle. Different power-saving signal monitoring patterns are configured aiming at the short DRX period and the long DRX period, so that time domain resources used by the power-saving signals can be more flexibly configured, and the power-saving signal monitoring patterns can be configured according to requirements during specific implementation, thereby taking the reliability of power-saving signal transmission and the effective utilization of system resources into consideration.

The power saving signal listening pattern may be used to indicate a time domain resource occupied by the power saving signal, such as a starting symbol of the power saving signal in one slot and a number of symbols of a continuous transmission from the starting symbol.

Alternatively, the first power saving signal listening pattern _1 and the second power saving signal listening pattern _2 may be the same or different.

It should be noted that the embodiments on the base station side may be used independently, or may be combined arbitrarily, and the present application is not limited to this.

For example, the power saving signal search space configuration information configured by the base station includes a monitoring period, and may further include one or more of the following information (parameters):

the number of the monitoring opportunity offset parameters may be one or two (see the foregoing embodiment for the case of two), and if the number of the monitoring opportunity offset parameters is one, the terminal uses the same monitoring opportunity offset parameter in the short DRX cycle and the long DRX cycle;

an on-time window, the number of the on-time window parameters may be one or two (see the foregoing embodiment for the case of two), if the number of the on-time window parameters is one, the terminal uses the same on-time window parameter in the short DRX cycle and the long DRX cycle;

control resource sets, the number of which may be one or two (see the foregoing embodiment for the case of two), and if the number of control resource sets is one, the terminal uses the same control resource set in the short DRX cycle and the long DRX cycle;

the number of listening patterns may be one or two (see the foregoing embodiment for the case of two), and if the number of listening patterns is one, the terminal uses the same listening pattern in the short DRX cycle and the long DRX cycle.

It should be noted that, the above list merely exemplifies several possible cases, and the embodiments of the present application are not limited to the above listed cases.

It should be noted that the configuration of the power-saving signal search space configuration parameter may be implemented by expanding a PDCCH search space configuration parameter or multiplexing a PDCCH search space configuration parameter. The configuration of the above power-saving signal search space configuration parameters may also be performed independently of the PDCCH search space configuration procedure.

And the terminal receives the power-saving signal search space configuration information, the first subset indication information and the second subset indication information which are sent by the receiving station, and monitors the power-saving signal and the PDCCH according to the configuration information.

Referring to fig. 3, a schematic diagram of a power saving signal receiving process provided in an embodiment of the present application, where the process may include:

s301: the terminal receives the power saving signal search space configuration information and the first subset indication information and the second subset indication information transmitted by the base station.

For the content and the transmission mode contained in the power saving signal search space configuration information, and the description of the first subset indication information and the second subset indication information, reference may be made to the foregoing embodiments, and this is not repeated here.

S302: and the terminal monitors the power-saving signal according to the power-saving signal search space configuration information and the first subset indication information and the second subset indication information.

In this step, the terminal monitors the power saving signal according to the monitoring opportunity corresponding to the first subset indicated by the first subset indication information when in the short DRX cycle, and monitors the power saving signal according to the monitoring opportunity corresponding to the second subset indicated by the second subset indication information when in the long DRX cycle.

Optionally, if the power saving signal search space configuration information includes a first monitoring opportunity offset _1 and a second monitoring opportunity offset _2, when the terminal is in the short DRX cycle, determining a starting position of a monitoring opportunity of the power saving signal in the short DRX cycle according to the first monitoring opportunity offset _1 and starting to monitor the power saving signal; and when the terminal is in the long DRX period, determining the starting position of the monitoring opportunity of the power saving signal in the long DRX period according to the second monitoring opportunity offset _2 and starting to monitor the power saving signal.

Optionally, according to different configuration manners of the first listening opportunity offset, the first listening opportunity offset may be determined in a corresponding manner. For example, the determination method may include any one of the following methods:

determination method 1: determining according to the search space configuration information, for example, if the indication of the first listening opportunity offset is displayed by searching for the listening opportunity offset indication information in the search space configuration information, the terminal may determine the first listening opportunity offset according to the indication information;

determination mode 2: determining according to an interval value configured by a high-level signaling, wherein the interval value is an interval value from a DRX activation period starting point; for example, if an interval value from a DRX activation period start point is configured through higher layer signaling, the terminal may determine the first monitoring opportunity offset according to the interval value;

determination mode 3: determining according to an interval range configured by a search space or a high-level signaling, wherein the interval range is an interval range from a DRX activation period starting point; for example, if the interval range from the DRX activation period start point is configured by the search space or the higher layer signaling, the terminal may determine the first monitoring opportunity offset according to the interval value;

determination mode 4: determining according to a monitoring offset value configured in an interval range configured by a search space or a high-level signaling, wherein the interval range is an interval range from a DRX activation period starting point; for example, if the listening offset value within an interval range from the DRX activation period start point is configured through the search space or the higher layer signaling, the terminal may determine the first listening opportunity offset according to the listening offset value configured within the interval range.

Alternatively, the second listening opportunity offset may be determined in various manners, for example, the manner of determination may be similar to any one of the manners of determination of the first listening opportunity offset, and will not be described in detail herein.

Optionally, the monitoring, by the terminal, the power saving signal according to the power saving signal search space configuration information may include: and when the terminal is in a short DRX period, monitoring the power-saving signal according to the position corresponding to the first monitoring opportunity offset, or continuously monitoring the power-saving signal in a first monitoring opportunity offset range corresponding to the first monitoring opportunity offset, or monitoring the power-saving signal according to an offset value configured in the first monitoring opportunity offset range corresponding to the first monitoring opportunity offset. And when the terminal is in the long DRX period, monitoring the power-saving signal according to the position corresponding to the second monitoring opportunity offset, or continuously monitoring the power-saving signal in a second monitoring opportunity offset range corresponding to the second monitoring opportunity offset, or monitoring the power-saving signal according to an offset value configured in the second monitoring opportunity offset range corresponding to the second monitoring opportunity offset.

Optionally, if the power saving signal search space configuration information includes a first listening time window duration _1 and a second listening time window duration _2, when the terminal is in the short DRX cycle, according to the first listening time window duration _1, the terminal monitors the power saving signal within a corresponding time length before the activation period of the short DRX cycle; and when the terminal is in the long DRX period, monitoring the power saving signal in the corresponding time length before the activation period of the long DRX period according to the second monitoring time window duration _2.

Optionally, if the power saving signal search space configuration information further includes a first control resource set CORESET _1 and a second control resource set CORESET _2, when the terminal is in the short DRX cycle, monitoring the power saving signal in the corresponding time domain resource according to the first control resource set CORESET _ 1; and when the terminal is in the long DRX period, monitoring the power saving signal in the corresponding time domain resource according to a second control resource set CORESET _2.

Optionally, if the power saving signal search space configuration information includes a first power saving signal monitoring pattern _1 and a second power saving signal monitoring pattern _2, when the terminal is in the short DRX cycle, performing power saving signal monitoring according to the first power saving signal monitoring pattern _ 1; and when the terminal is in the long DRX period, performing power-saving signal monitoring according to a second power-saving signal monitoring pattern _2.

The following describes in detail the implementation process of the above embodiments of the present application by using several specific examples.

Example 1

Example one is described by taking as an example that the listening opportunities corresponding to the short DRX cycle and the long DRX cycle are subset 1 of the power saving signal search space and subset 2 of the node signal search space, respectively.

According to the flow shown in fig. 2, the configuration process of the power saving signal search space and the first and second subset indication information may include:

the base station sends the parameter configuration of the search space of the power saving signal to the terminal through a high-level signaling, taking the power saving signal based on the PDCCH as an example, the format of the parameter configuration is similar to the parameter configuration of the search space of the conventional PDCCH, wherein the value of the monitoring period is the cycle length of the short DRX cycle or a value shorter than the long DRX cycle (for example, the value may be a common divisor of the long DRX cycle, or may not be the common divisor of the long DRX cycle). The monitoring offset value of the power saving signal is offset for both the short DRX cycle and the long DRX cycle.

In addition, the base station configures relevant parameters of the power-saving signal monitoring behavior for the terminal through a high-level signaling, and the method specifically includes: the monitoring duration related parameter N (N is an integer and N is greater than or equal to 0) when the terminal is in the short DRX cycle, and the monitoring duration related parameter M (M is an integer and M is K × M, M is an integer and M is greater than or equal to 1, and K is a multiple of the long DRX cycle compared with the short DRX cycle) when the terminal is in the long DRX cycle. The meanings of M and N are: when the terminal is in the short DRX period, the power-saving signal is monitored once every N monitoring periods, and when the terminal is in the long DRX period, the power-saving signal is monitored once every M monitoring periods. The listening position of the power saving signal is determined according to the offset value offset configured by the high layer signaling. If the long DRX cycle is 4 times the short DRX cycle, taking N as 2 and M as 4 as an example, when the terminal is in the short DRX cycle, monitoring the power saving signal is performed every 2 monitoring cycles, and when the terminal is in the long DRX cycle, monitoring the power saving signal is performed every 4 monitoring cycles, that is, monitoring the power saving signal is performed every long DRX cycle.

The base station sends the power-saving signal according to the configuration of the power-saving signal search space and the transmission of the terminal data, and the process of sending the power-saving signal may include:

the base station can know the DRX cycle of the terminal, namely the long DRX cycle or the short DRX cycle, according to the parameter configuration of the DRX and the data arrival condition of the terminal, and determines the monitoring opportunity of the power saving signal (such as the monitoring starting position of the power saving signal and the duration of continuously monitoring the power saving signal) according to the current DRX cycle of the terminal, the power saving signal searching space configuration parameter, the first subset indication information (parameter N) and the second subset indication information (parameter M), and sends the power saving signal at the monitoring opportunity of the power saving signal to indicate whether the terminal wakes up from the sleep state to monitor the PDCCH or continues to sleep in the subsequent DRX cycle.

For example, if the current terminal is in the short DRX cycle, that is, the short DRX cycle timer (DRX-ShortCycleTimer) does not time out, the base station sends a power saving signal once every 2 listening periods in the short DRX cycle that needs to be indicated, where the power saving signal is located at the listening offset value offset of the first short DRX cycle. If the current terminal enters the long DRX period, the base station sends a power saving signal once every 4 monitoring periods in the long DRX period needing to be indicated, and the power saving signal is positioned at the position corresponding to the monitoring offset value offset of the first long DRX period. If the power saving signal has an implicit indication function, that is, the terminal continues to sleep without sending the power saving signal at the monitoring opportunity of the power saving signal, and does not enter an active state for DRX, at this time, the base station does not necessarily send the power saving signal for the terminal at the monitoring opportunity of the terminal. If the power saving signal carries explicit indication information, the base station transmits the power saving signal to the terminal at the listening time of the terminal.

According to the flow shown in fig. 3, when the terminal configures a long DRX cycle and a short DRX cycle, the terminal performs power saving signal monitoring according to the following rules:

and if the terminal receives the MAC CE carrying the DRX command, starting DRX, entering a short DRX period by the terminal, and starting or restarting a short DRX period timer (DRX-ShortCycleTimer). At this time, the terminal monitors the power saving signal at the position corresponding to the monitoring offset value offset of the first short DRX cycle when receiving the MAC CE carrying the DRX command according to the monitoring parameters configured by the high-level signaling of the base station.

In the short DRX cycle, the terminal monitors the PDCCH only during the active period. The DRX inactivity timer (DRX-inactivity timer) is started or restarted whenever the terminal receives DCI with a new data indication. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer is overtime, the terminal adopts a short DRX period, and during the short DRX period executed by the terminal, the terminal selects to monitor the power saving signal once in every two monitoring periods, and each monitoring opportunity is positioned at a position corresponding to a monitoring offset value offset of the first short DRX period.

When a short DRX period timer (DRX-ShortCycleTimer) or a MAC CE carrying a long DRX command sent by a base station is received, the terminal enters a long DRX period. When the terminal enters the long DRX cycle, the terminal monitors the power saving signal once every 4 monitoring cycles, and each monitoring opportunity is located at a position corresponding to the monitoring offset value offset of the long DRX cycle.

When the terminal receives the DCI with the new data indication during the activation of the long DRX, a DRX inactivity timer (DRX-inactivity timer) is turned on or restarted. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer expires, the terminal is in a short DRX cycle. During the terminal performing the short DRX cycle, the terminal monitors the power saving signal once every two monitoring cycles, and each monitoring opportunity is located at a position corresponding to the monitoring offset value offset of the first short DRX cycle.

When the terminal is in the short DRX period and a short DRX period timer (DRX-ShortCycleTimer) is not expired, if the terminal receives the MAC CE with the long DRX command sent by the base station, the terminal enters the long DRX period. At this time, the terminal will receive the power saving signal at the position corresponding to the monitoring offset value offset of the first DRX cycle after receiving the MAC CE, and then monitor the power saving signal once every 4 subsequent monitoring cycles.

Further, the terminal monitors the power saving signal at the monitoring opportunity of the power saving signal before the active period (duration) of the DRX cycle, and performs the subsequent DRX monitoring operation according to the condition of monitoring the power saving signal. For example: if the terminal receives the power-saving signal at the monitoring opportunity of the power-saving signal, the terminal enters an active state in the subsequent DRX active period to monitor the PDCCH; otherwise, the terminal continues to be in an inactive state for a subsequent DRX active period. The above-mentioned monitoring action of the candidate DRX is only an example, and the embodiment of the present application is not limited to performing other processing operations.

Example two

Example two is described by taking two listening opportunity offset values respectively corresponding to the short DRX cycle and the long DRX cycle as an example.

the base station sends the parameter configuration of the search space of the power saving signal to the terminal through a high-level signaling, taking the power saving signal based on the PDCCH as an example, the format of the parameter configuration is similar to the parameter configuration of the search space of the conventional PDCCH, wherein the value of the monitoring period is the cycle length of the short DRX cycle or a value shorter than the long DRX cycle (for example, the value may be a common divisor of the long DRX cycle, or may not be the common divisor of the long DRX cycle).

In addition, the base station configures parameters related to the power saving signal monitoring behavior for the terminal through high-level signaling, where the parameters may include: the monitoring duration related parameter N (N is an integer and N is greater than or equal to 0) when the terminal is in the short DRX cycle, and the monitoring duration related parameter M (M is an integer and M is K × M, M is an integer and M is greater than or equal to 1, and K is a multiple of the long DRX cycle compared with the short DRX cycle) when the terminal is in the long DRX cycle. The meanings of M and N are: when the terminal is in the short DRX period, the power saving signal is monitored once every N monitoring periods, and when the terminal is in the long DRX period, the power saving signal is monitored once every M monitoring periods. If the long DRX cycle is 4 times the short DRX cycle, taking N as 2 and M as 4 as an example, when the terminal is in the short DRX cycle, monitoring the power saving signal is performed every 2 monitoring cycles, and when the terminal is in the long DRX cycle, monitoring the power saving signal is performed every 4 monitoring cycles, that is, monitoring is performed every long DRX cycle.

The base station may configure two listening opportunity offset values offset _1 and offset _2 corresponding to the short DRX cycle and the long DRX cycle, respectively. The values of the two listening offset values may be the same or different, and the same situation is the same as in the first example. For different cases, the start position of the listening opportunity in the short DRX cycle is determined according to the offset value offset _1, and the start position of the listening activation in the long DRX cycle is determined according to the offset value offset _2. Offset _2 is greater than offset _1 if the long DRX cycle requires a higher delay for power saving signal processing. Other parameters are similar to the parameter configuration of the conventional search space set of PDCCH, and are not described herein again.

the base station can acquire the DRX cycle of the terminal, namely the long DRX cycle or the short DRX cycle, according to the parameter configuration of the DRX and the data arrival condition of the UE. And determining the monitoring opportunity of the power saving signal (such as the monitoring starting position of the power saving signal and the duration of continuously monitoring the power saving signal) according to the current DRX cycle of the terminal and the power saving signal search space configuration parameter, the first subset indication information (parameter N) and the second subset indication information (parameter M), and transmitting the power saving signal at the monitoring opportunity of the power saving signal to indicate whether the terminal wakes up from the sleep state to monitor the PDCCH or continues to sleep in the subsequent DRX cycle.

For example, if the current terminal is in the short DRX cycle, that is, the short DRX cycle timer (DRX-ShortCycleTimer) is not timed out, the base station sends a power saving signal once every 2 monitoring cycles in the short DRX cycle that needs to be indicated, where the power saving signal is located at a position corresponding to the monitoring offset value offset _1 of the first short DRX cycle. If the current terminal enters the long DRX period, the base station sends a power saving signal once every 4 monitoring periods in the long DRX which needs to be indicated, and the power saving signal is positioned at the monitoring offset value offset _2 of the first long DRX period. If the power saving signal has an implicit indication function, that is, the terminal continues to sleep without sending the power saving signal at the monitoring opportunity of the power saving signal, and does not enter an active state for DRX, at this time, the base station does not necessarily send the power saving signal for the terminal at the monitoring opportunity of the terminal. If the power saving signal carries explicit indication information, the base station transmits the power saving signal to the terminal at the listening time of the terminal.

According to the flow shown in fig. 3, when the terminal configures the long DRX and the short DRX, the terminal performs power saving signal monitoring according to the following rules:

and if the terminal receives the MAC CE carrying the DRX command, starting DRX, entering a short DRX period by the terminal, and starting or restarting a short DRX period timer (DRX-ShortCycleTimer). At this time, the terminal monitors the power saving signal at the position corresponding to the monitoring offset value offset _1 of the first short DRX cycle when receiving the MAC CE carrying the DRX command according to the monitoring parameter configured by the high-level signaling of the base station.

In the short DRX cycle, the terminal monitors the PDCCH only during the active period. The DRX inactivity timer (DRX-inactivity timer) is started or restarted whenever the terminal receives DCI with a new data indication. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer is overtime, the terminal adopts a short DRX period, and during the short DRX period executed by the terminal, the terminal selects to monitor the power saving signal once every two monitoring periods, and each monitoring opportunity is positioned at a position corresponding to a monitoring offset value offset _1 of the first short DRX period.

And when a short DRX period timer (DRX-ShortCycleTimer) is overtime or a MAC CE carrying a long DRX command and transmitted by the base station is received, the terminal enters a long DRX period. When the terminal enters the long DRX cycle, the terminal monitors the power saving signal once every 4 monitoring cycles, and each monitoring opportunity is located at a position corresponding to the monitoring offset value offset _2 of the long DRX cycle.

When the terminal receives the DCI with the new data indication during the activation of the long DRX, a DRX inactivity timer (DRX-inactivity timer) is turned on or restarted. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer expires, the terminal is in a short DRX cycle. During the short DRX cycle, the terminal monitors the power saving signal once every two monitoring periods, and each monitoring opportunity is located at a position corresponding to the monitoring offset value offset _1 of the first short DRX cycle.

And when the terminal is in the short DRX period and a short DRX period timer (DRX-ShortCycleTimer) is not expired, the terminal enters the long DRX period when receiving the MAC CE with the long DRX command sent by the base station. At this time, the terminal receives the power saving signal at the position corresponding to the monitoring offset value offset _2 of the first long DRX cycle after receiving the MAC CE, and monitors the power saving signal every 4 subsequent monitoring cycles.

Example three

Example three corresponds to one listening time window with a short DRX cycle and a long DRX cycle, respectively.

the base station sends the parameter configuration of the search space of the power saving signal to the terminal through a high-level signaling, taking the power saving signal based on the PDCCH as an example, the format of the parameter configuration is similar to the parameter configuration of the search space of the conventional PDCCH, wherein the value of the monitoring period is the cycle length of the short DRX or a value shorter than the long DRX cycle (for example, the value may be a common divisor of the long DRX cycle, or may not be the common divisor of the long DRX cycle).

In addition, the base station configures the relevant parameters of the power-saving signal monitoring behavior for the terminal through high-level signaling: the monitoring duration related parameter N (N is an integer and N is more than or equal to 0) when the terminal is in the short DRX, and the monitoring duration related parameter M (M is an integer and M is K multiplied by M, M is an integer and M is more than or equal to 1, and K is a multiple of the long DRX period compared with the short DRX period) when the terminal is in the long DRX. The meanings of M and N are: when the terminal is in the short DRX period, the power saving signal is monitored once every N monitoring periods, and when the terminal is in the long DRX period, the power saving signal is monitored once every M monitoring periods. If the long DRX cycle is 4 times the short DRX cycle, this embodiment takes N as 2 and M as 4 as an example to describe, that is, when the terminal is in the short DRX cycle, the power saving signal is monitored every 2 monitoring cycles, and when the terminal is in the long DRX cycle, the power saving signal is monitored every 4 monitoring cycles, that is, the power saving signal is monitored every long DRX cycle.

The base station can configure two monitoring opportunity monitoring time windows duration _1 and duration _2, which respectively correspond to the number of time slots for continuously monitoring the power saving signal in the short DRX cycle and the long DRX cycle. The duration _1 is the duration window of the power-saving signal in the short DRX cycle, and the duration _2 is the duration window of the power-saving signal in the long DRX cycle. The values of the two time windows may be the same or different. The same is true for example one. For different situations, for example, when the terminal is in the short DRX cycle, the power saving signal carries power saving information for 2 short DRX cycles; when the terminal is in the long DRX cycle, the power saving signal carries power saving information for 1 long DRX cycle, and then the base station may configure that duration _1 is greater than duration _2.

the base station can acquire the DRX cycle in which the terminal is located, namely a long DRX cycle or a short cycle, according to the parameter configuration of the DRX and the data arrival condition of the terminal, and determines monitoring opportunities of the power saving signal (such as the monitoring starting position of the power saving signal and the duration of continuously monitoring the power saving signal) according to the current DRX cycle in which the terminal is located, the power saving signal search space configuration parameter, the first subset indication information (parameter N) and the second subset indication information (parameter M), and sends the power saving signal at the monitoring opportunities of the power saving signal to indicate whether the terminal wakes up from a sleep state to monitor the PDCCH or continues to sleep in the subsequent DRX cycle.

For example: if the current terminal is in the short DRX cycle, that is, the short DRX cycle timer (DRX-ShortCycleTimer) is not timed out, the base station sends a power saving signal once every 2 monitoring cycles in the short DRX cycle that needs to be indicated, the power saving signal is located at a position corresponding to the monitoring offset value offset of the first short DRX cycle, and the power saving signal monitors duration — 1 slots. If the current terminal enters the long DRX period, the base station sends a power saving signal once every 4 monitoring periods in the long DRX which needs to be indicated, the power saving signal is positioned at the position corresponding to the monitoring offset value offset of the first long DRX period, and the power saving signal monitors continuous duration-2 time slots. If the power saving signal has an implicit indication function, that is, the terminal continues to sleep without sending the power saving signal at the monitoring opportunity of the power saving signal, and does not enter an active state for DRX, at this time, the base station does not necessarily send the power saving signal for the terminal at the monitoring opportunity of the terminal. If the power saving signal carries explicit indication information, the base station transmits the power saving signal to the terminal at the listening time of the terminal.

and if the terminal receives the MAC CE carrying the DRX command, starting DRX, entering a short DRX period by the terminal, and starting or restarting a short DRX period timer (DRX-ShortCycleTimer). At this time, the terminal monitors the power saving signal at the position corresponding to the monitoring offset value offset of the first short DRX cycle when receiving the MAC CE carrying the DRX command according to the monitoring parameters configured by the high-level signaling of the base station, and the power saving signal monitors the duration — 1 slots.

In the short DRX cycle, the terminal monitors the PDCCH only during the active period. The DRX inactivity timer (DRX-inactivity timer) is started or restarted whenever the terminal receives DCI with a new data indication. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer is overtime, the terminal adopts a short DRX period, and during the short DRX period executed by the terminal, the terminal selects to monitor the power saving signal once every two monitoring periods, each monitoring period is located at a position corresponding to the monitoring offset value offset of the first short DRX period, and the power saving signal monitors the continuous duration _1 time slots.

And when a short DRX period timer (DRX-ShortCycleTimer) is overtime or a MAC CE carrying a long DRX command and transmitted by the base station is received, the terminal enters a long DRX period. When the terminal enters the long DRX period, the terminal monitors the power saving signal once every 4 monitoring periods, each monitoring machine is positioned at the position corresponding to the monitoring offset value offset of the long DRX period, and the power saving signal monitors the continuous duration-2 time slots.

During the activation period of the long DRX, when the terminal receives DCI with a new data indication, a DRX inactivity timer (DRX-inactivity timer) is started or restarted. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer expires, the terminal is in a short DRX cycle. Then during the terminal performing the short DRX cycle, the terminal monitors the power saving signal once every two monitoring cycles, each monitoring opportunity is located at a position corresponding to the monitoring offset value offset of the first short DRX cycle, and the power saving signal monitors duration — 1 slots.

And when the terminal is in the short DRX period and a short DRX period timer (DRX-ShortCycleTimer) is not expired, the terminal enters the long DRX period when receiving the MAC CE with the long DRX command sent by the base station. At this time, the terminal receives the power saving signal at the position corresponding to the monitoring offset value offset of the first long DRX cycle after receiving the MAC CE, and monitors the duration — 2 slots, and then monitors the power saving signal once every 4 subsequent monitoring cycles.

Example four

Example four is described by taking as an example that the short DRX cycle and the long DRX cycle respectively correspond to one resource set (i.e., a search resource set).

In addition, the base station configures the relevant parameters of the power-saving signal monitoring behavior for the terminal through high-level signaling: the monitoring duration related parameter N (N is an integer and N is greater than or equal to 0) when the terminal is in the short DRX cycle, and the monitoring duration related parameter M (M is an integer and M is K × M, M is an integer and M is greater than or equal to 1, and K is a multiple of the long DRX cycle compared with the short DRX cycle) when the terminal is in the long DRX cycle. The meanings of M and N are: when the terminal is in the short DRX period, the power saving signal is monitored once every N monitoring periods, and when the terminal is in the long DRX period, the power saving signal is monitored once every M monitoring periods. If the long DRX cycle is 4 times the short DRX cycle, this embodiment takes N as 2 and M as 4 as an example to describe, that is, when the terminal is in the short DRX cycle, the power saving signal is monitored every 2 monitoring cycles, and when the terminal is in the long DRX cycle, the power saving signal is monitored every 4 monitoring cycles, that is, the power saving signal is monitored every long DRX cycle.

The base station can configure two control resource sets, i.e., a control resource set core _1 and a control resource set core _2, which correspond to resource sets where power saving signals are located in the short DRX cycle and the long DRX cycle, respectively. The resource set corresponding to the power-saving signal in the short DRX period is CORESET _1, and the resource set corresponding to the power-saving signal in the long DRX period is CORESET _2. The resource sets may be the same or different. The same is true for example one. For different cases, for example, when the terminal is in the short DRX cycle, the CORESET _1 occupies three symbols in the time domain; when the terminal is in a long DRX period, CORESET _1 occupies two symbols in the time domain.

For example: if the current terminal is in the short DRX cycle, that is, the short DRX cycle timer (DRX-ShortCycleTimer) is not timed out, the base station sends a power saving signal once every 2 monitoring cycles in the short DRX cycle that needs to be indicated, the power saving signal is located at a position corresponding to the monitoring offset value offset of the first short DRX cycle, and the resource set monitored by the power saving signal is CORESET _ 1. If the current terminal enters the long DRX period, the base station sends a power saving signal once every 4 monitoring periods in the long DRX which needs to be indicated, the power saving signal is positioned at the position corresponding to the monitoring offset value offset of the first long DRX period, and the resource set monitored by the power saving signal is CORESET _2. If the power saving signal has an implicit indication function, that is, the terminal continues to sleep without sending the power saving signal at the monitoring opportunity of the power saving signal, and does not enter an active state for DRX, at this time, the base station does not necessarily send the power saving signal for the terminal at the monitoring opportunity of the terminal. If the power saving signal carries explicit indication information, the base station transmits the power saving signal to the terminal at the listening time of the terminal.

and if the terminal receives the MAC CE carrying the DRX command, starting DRX, entering a short DRX period by the terminal, and starting or restarting a short DRX period timer (DRX-ShortCycleTimer). At this time, the terminal monitors the power saving signal at the position corresponding to the monitoring offset value offset of the first short DRX cycle when receiving the MAC CE carrying the DRX command according to the monitoring parameter configured by the high-level signaling of the base station, and the resource set monitored by the power saving signal is CORESET _ 1.

In the short DRX cycle, the terminal monitors the PDCCH only during the active period. The DRX inactivity timer (DRX-inactivity timer) is started or restarted whenever the terminal receives DCI with a new data indication. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer is overtime, the terminal adopts a short DRX period, and during the short DRX period executed by the terminal, the terminal selects to monitor the power saving signal once every two monitoring periods, each monitoring opportunity is positioned at a position corresponding to a monitoring offset value offset of the first short DRX period, and the resource set monitored by the power saving signal is CORESET _ 1.

And when a short DRX period timer (DRX-ShortCycleTimer) is overtime or a MAC CE carrying a long DRX command and transmitted by the base station is received, the terminal enters a long DRX period. When the terminal enters the long DRX cycle, the terminal monitors the power saving signal once every 4 monitoring cycles, each monitoring opportunity is located at a position corresponding to the monitoring offset value offset of the long DRX cycle, and the monitored resource set is CORESET _2.

During the activation period of the long DRX, when the terminal receives DCI with a new data indication, a DRX inactivity timer (DRX-inactivity timer) is started or restarted. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer expires, the terminal is in a short DRX cycle. Then during the terminal performing the short DRX cycle, the terminal monitors the power saving signal once every two monitoring cycles, each monitoring opportunity is located at a position corresponding to the monitoring offset value offset of the first short DRX cycle, and the set of resources monitored by the power saving signal is CORESET _ 1.

And when the terminal is in the short DRX period and a short DRX period timer (DRX-ShortCycleTimer) is not expired, the terminal enters the long DRX period when receiving the MAC CE with the long DRX command sent by the base station. At this time, the terminal receives the power saving signal at the position corresponding to the monitoring offset value offset of the first long DRX cycle after receiving the MAC CE, and if the resource set monitored by the power saving signal is CORESET _2, the power saving signal is monitored every 4 subsequent monitoring cycles.

Example five

Example five is described by taking an example that the short DRX cycle and the long DRX cycle respectively correspond to one listening pattern.

The base station may configure two monitoring patterns pattern _1 and pattern _2, which correspond to the monitoring patterns for the power saving signal in the short DRX cycle and the long DRX cycle, respectively. The resource sets may be the same or different. The same is true for example one. For different situations, for example, the monitoring pattern corresponding to the power saving signal in the short DRX cycle is pattern _1, which is the first symbol, and CORESET occupies three symbols, so that when the terminal is in the short DRX cycle, the symbol of the power saving signal in one slot is {1, 2, 3 }. The monitoring pattern of the power saving signal in the long DRX cycle is pattern _2, which is the 4 th symbol, and CORESET occupies three symbols, so that when the terminal is in the long DRX cycle, the symbol of the power saving signal in one slot is {4, 5, 6 }.

For example: if the current terminal is in the short DRX cycle, that is, the short DRX cycle timer (DRX-ShortCycleTimer) is not timed out, the base station sends a power saving signal once every 2 monitoring cycles in the short DRX cycle that needs to be indicated, the power saving signal is located at a position corresponding to the monitoring offset value offset of the first short DRX cycle, and the monitoring pattern of the power saving signal in one time slot is pattern _ 1. If the current terminal enters the long DRX period, the base station sends a power saving signal once every 4 monitoring periods in the long DRX which needs to be indicated, the power saving signal is positioned at the position corresponding to the monitoring offset value offset of the first long DRX period, and the monitoring pattern of the power saving signal in one time slot is pattern _2. If the power saving signal has an implicit indication function, that is, the terminal continues to sleep without sending the power saving signal at the monitoring opportunity of the power saving signal, and does not enter an active state for DRX, at this time, the base station does not necessarily send the power saving signal for the terminal at the monitoring opportunity of the terminal. If the power saving signal carries explicit indication information, the base station transmits the power saving signal to the terminal at the listening time of the terminal.

and if the terminal receives the MAC CE carrying the DRX command, starting DRX, entering a short DRX period by the terminal, and starting or restarting a short DRX period timer (DRX-ShortCycleTimer). At this time, the terminal monitors the power saving signal at the position corresponding to the monitoring offset value offset of the first short DRX cycle when receiving the MAC CE carrying the DRX command according to the monitoring parameter configured by the high-level signaling of the base station, and the monitoring pattern of the power saving signal in one time slot is pattern _ 1.

In the short DRX cycle, the terminal monitors the PDCCH only during the active period. The DRX inactivity timer (DRX-inactivity timer) is started or restarted whenever the terminal receives DCI with a new data indication. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the draft timer is overtime, the terminal adopts a short DRX period, during the period that the terminal executes the short DRX period, the terminal selects every two monitoring periods to monitor the power saving signal, each monitoring period is positioned at a position corresponding to a monitoring offset value offset of the first short DRX period, and a monitoring pattern of the power saving signal in a time slot is pattern _ 1.

And if the short DRX period timer (DRX-ShortCycleTimer) is overtime or the MAC CE carrying the long DRX command sent by the base station is received, the terminal enters the long DRX period. When the terminal enters the long DRX cycle, the terminal monitors the power saving signal once every 4 monitoring cycles, each monitoring machine is located at a position corresponding to the offset value offset of the long DRX cycle, and the monitoring pattern in one slot is pattern _2.

And if the terminal receives the DCI with the new data indication during the activation period of the long DRX, starting or restarting a DRX inactivity timer (DRX-inactivity timer). When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer expires, the terminal is in a short DRX cycle. Then, during the terminal performing the short DRX cycle, the terminal monitors the power saving signal once every two monitoring cycles, each monitoring opportunity is located at a position corresponding to the monitoring offset value offset of the first short DRX cycle, and the monitoring pattern in one slot is pattern _ 1.

And when the terminal is in the short DRX period and a short DRX period timer (DRX-ShortCycleTimer) is not expired, the terminal enters the long DRX period when receiving the MAC CE with the long DRX command sent by the base station. At this time, the terminal receives the power saving signal at the position corresponding to the monitoring offset value offset of the first long DRX cycle after receiving the MAC CE, and the monitoring pattern of the power saving signal in one time slot is pattern _2, and then monitors the power saving signal once every 4 subsequent monitoring cycles.

Example six

Example six is described by using a combination of two optional parameter configurations, and taking an example that the short DRX cycle and the long DRX cycle respectively correspond to one listening opportunity offset value and one listening time window.

The base station can configure two offset values offset _1 and offset _2 corresponding to the short DRX cycle and the long DRX cycle, respectively. The values of the two listening offset values may be the same or different, and the same situation is the same as in the first example. For different cases, for example, the offset value of the monitored position of the power-saving signal in the short DRX cycle is offset _1, and the monitored position of the power-saving signal in the long DRX cycle is determined according to the offset value offset _2. Offset _2 is greater than offset _1 if the long DRX cycle requires a higher delay for power saving signal processing.

The base station can configure two monitoring time windows duration _1 and duration _2, which respectively correspond to the number of time slots for continuously monitoring the power saving signal in the short DRX cycle and the long DRX cycle. The duration _1 is the duration window of the power-saving signal in the short DRX cycle, and the duration _2 is the duration window of the power-saving signal in the long DRX cycle. The values of the two time windows may be the same or different. The same is true for example one. For different situations, for example, when the terminal is in the short DRX cycle, the power saving signal carries power saving information for 2 short DRX cycles; when the terminal is in the long DRX cycle, the power saving signal carries power saving information for 1 long DRX cycle, and then the base station can configure that duration _1 is greater than duration _2.

For example: if the current terminal is in the short DRX cycle, that is, the short DRX cycle timer (DRX-ShortCycleTimer) is not timed out, the base station sends a power saving signal once every 2 monitoring cycles in the short DRX cycle that needs to be indicated, the power saving signal is located at a position corresponding to the monitoring offset value offset _1 of the first short DRX cycle, and the power saving signal monitors duration _1 slots. If the current terminal enters the long DRX period, the base station sends a power saving signal once every 4 monitoring periods in the long DRX which needs to be indicated, the power saving signal is positioned at the position corresponding to the monitoring offset value offset _2 of the first long DRX period, and the power saving signal monitors the continuous duration _2 time slots. If the power saving signal has an implicit indication function, that is, the terminal continues to sleep without sending the power saving signal at the monitoring opportunity of the power saving signal, and does not enter an active state for DRX, at this time, the base station does not necessarily send the power saving signal for the terminal at the monitoring opportunity of the terminal. If the power saving signal carries explicit indication information, the base station transmits the power saving signal to the terminal at the listening time of the terminal.

and if the terminal receives the MAC CE carrying the DRX command, starting DRX, entering a short DRX period by the terminal, and starting or restarting a short DRX period timer (DRX-ShortCycleTimer). At this time, the terminal monitors the power saving signal at the position corresponding to the monitoring offset value offset _1 of the first short DRX cycle when receiving the MAC CE carrying the DRX command according to the monitoring parameter configured by the high-level signaling of the base station, and monitors the duration _1 time slots for the power saving signal.

In the short DRX cycle, the terminal monitors the PDCCH only during the active period. The DRX inactivity timer (DRX-inactivity timer) is started or restarted whenever the terminal receives DCI with a new data indication. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer is overtime, the terminal adopts a short DRX period, and during the short DRX period executed by the terminal, the terminal selects to monitor the power saving signal once every two monitoring periods, each monitoring period is located at a position corresponding to a monitoring offset value offset _1 of the first short DRX period, and the power saving signal monitors duration _1 time slots.

And when a short DRX period timer (DRX-ShortCycleTimer) is overtime or a MAC CE carrying a long DRX command and transmitted by the base station is received, the terminal enters a long DRX period. When the terminal enters the long DRX cycle, the terminal monitors the power saving signal once every 4 monitoring cycles, each monitoring machine is located at a position corresponding to the monitoring offset value offset _2 of the long DRX cycle, and the power saving signal monitors the duration _2 slots.

During the activation period of the long DRX, when the terminal receives DCI with a new data indication, a DRX inactivity timer (DRX-inactivity timer) is started or restarted. When the timer times out, the terminal enters a sleep period, i.e., an inactive state, and simultaneously the terminal starts or restarts a short DRX cycle timer (DRX-ShortCycleTimer). Before the timer expires, the terminal is in a short DRX cycle. Then the terminal monitors the power saving signal once every two listening periods during the terminal performs the short DRX cycle, each listening opportunity is located at a position corresponding to the listening offset value offset _1 of the first short DRX cycle, and the power saving signal monitors the duration _1 slots.

And when the terminal is in the short DRX period and a short DRX period timer (DRX-ShortCycleTimer) is not expired, the terminal enters the long DRX period when receiving the MAC CE with the long DRX command sent by the base station. At this time, the terminal will receive the power saving signal at the position corresponding to the monitoring offset value offset _2 of the first long DRX cycle after receiving the MAC CE, and the power saving signal monitors for duration _2 slots, and then monitors the power saving signal once every 4 subsequent monitoring cycles.

Example seven

Example seven is described by taking an example that the short DRX cycle and the long DRX cycle respectively correspond to two listening opportunity offset values.

the base station sends the parameter configuration of the search space of the power saving signal to the terminal through high-level signaling, taking the power saving signal based on the PDCCH as an example, the format of the parameter configuration is similar to the parameter configuration of the search space of the conventional PDCCH, wherein the value of the monitoring period is the period length of a short DRX period or the period length of a common divisor of a long DRX period.

In addition, the base station configures parameters related to the power saving signal monitoring behavior for the terminal through high-level signaling, where the parameters may include: if the monitoring period is configured to be the short DRX period, the monitoring duration related parameter N (N is an integer and N is more than or equal to 0) when the terminal is in the short DRX period, and the monitoring duration related parameter M (M is an integer and M is K multiplied by M, M is an integer and M is more than or equal to 1, and K is a multiple of the long DRX period compared with the short DRX period) when the terminal is in the long DRX period. The meanings of M and N are: when the terminal is in the short DRX period, the power saving signal is monitored once every N monitoring periods, and when the terminal is in the long DRX period, the power saving signal is monitored once every M monitoring periods. If the long DRX cycle is 4 times the short DRX cycle, taking N as 2 and M as 4 as an example, when the terminal is in the short DRX cycle, monitoring the power saving signal is performed every 2 monitoring cycles, and when the terminal is in the long DRX cycle, monitoring the power saving signal is performed every 4 monitoring cycles, that is, monitoring is performed every long DRX cycle.

If the monitoring cycle period in the search space of the power saving signal is configured as an integral multiple of the short DRX cycle, the base monitoring process is the same as the above-mentioned configuration as the short DRX cycle.

If the on-duration is configured to be less than the cycle length N1 of the long DRX cycle and the value is not an integer multiple of the short DRX cycle or an on-duration that is a common divisor of the long DRX cycle. In addition, monitoring duration related parameters K1 and K2 can be configured for the terminal (K1 and K2 are integers, K1 is more than or equal to 0, and K2 is more than or equal to 0) and respectively correspond to the short DRX period and the long DRX period. The on duration when the terminal is in the short DRX cycle is K1 × N1, and the on duration when the terminal is in the long DRX cycle is K2 × N1. It is noted that, here, the monitoring duration related parameter includes power saving signal monitoring for only short DRX cycle or one DRX cycle of long DRX cycle.

The base station may configure two listening opportunity offset values offset _1 and offset _2 corresponding to the short DRX cycle and the long DRX cycle, respectively. The values of the two listening offset values may be the same or different, and the same situation is the same as in the first example.

The listening opportunity offset value may be the following:

(1) the indication offset is displayed in the search space configuration,

(2) calculating an interval value offset _ gap from the starting point of the DRX active period configured by the higher layer signaling, that is, the listening offset value offset is:

offset＝offset_DRX–offset_gap

wherein, the offset _ DRX is an offset value of the starting position of the DRX active period. Here, the formula mainly represents the position relationship between the power saving signal and the DRX active period start position, and in addition, whether the monitored position of the power saving signal is located in the current DRX cycle can be considered according to specific values, that is, located in the previous DRX cycle because the interval value offset _ gap from the DRX active period start position is greater than the offset value of the DRX active period start position.

(3) And an interval range offset _ range configured by the search space set or the high layer signaling from the starting point of the DRX active period. The user only needs to continuously monitor the power saving signal within the interval range offset _ range from the beginning point of the DRX active period. If there may be a plurality of power saving signals within one DRX cycle because the power saving signal listening period configuration value is smaller than the DRX cycle, the user only needs to continue listening for the power saving signal within the interval range offset _ range from the start point of the DRX active period.

(4) A certain listening offset value offset configured through a search space within an interval range offset _ range from a DRX active period start point of a search space set or higher layer signaling configuration or an offset interval offset _ gap from a DRX active period start point. That is, the base station configures the offset value offset in the search space, and also configures the range offset _ range of the interval from the start point of the DRX active period by the search space set or the higher layer signaling. If there may be a plurality of power saving signals within one DRX cycle because the power saving signal listening period configuration value is smaller than the DRX cycle, the user only needs to monitor the power saving signal based on the monitoring offset value offset or the offset interval offset _ gap from the DRX active period start point within the interval range offset _ range from the DRX active period start point. Here, the listening cases of the power saving signal 1) and 2) are performed based on the listening offset value offset or the offset interval offset _ gap from the DRX active period start point.

It should be noted that several cases of the above mentioned offset value of the listening opportunity are applicable to both short DRX and long DRX, and therefore, there is no difference between them.

For different cases, the start position of the listening opportunity in the short DRX cycle is determined according to the offset value offset _1, and the start position of the listening activation in the long DRX cycle is determined according to the offset value offset _2. Offset _2 is greater than offset _1 if the long DRX cycle requires a higher delay for power saving signal processing. Other parameters are similar to the parameter configuration of the conventional search space set of PDCCH, and are not described herein again.

And the subsequent user monitors the corresponding power saving signal in the corresponding DRX cycle according to the power saving signal configured by the base station, and the process is the same as that in embodiment two and is not repeated.

Based on the same technical concept, the embodiment of the application also provides a base station.

Referring to fig. 4, a schematic structural diagram of a base station provided in the embodiment of the present application is shown. The base station may include: a processing module 401 and a sending module 402.

A processing module 401, configured to configure power saving signal search space configuration information and first subset indication information and second subset indication information, where the power saving signal search space configuration information includes an interception period, the interception period is equal to a short DRX period or shorter than a long DRX period (for example, the interception period may be a common divisor of the long DRX period, or may not be a common divisor of the long DRX period), the first subset indication information is used to indicate a first subset of interception opportunities corresponding to the interception period, the second subset indication information is used to indicate a second subset of interception opportunities corresponding to the interception period, the first subset corresponds to the interception opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the interception opportunities of the power saving signal when the terminal is in the long DRX period;

a sending module 402, configured to send the power saving signal search space configuration information and the first subset indication information and the second subset indication information to a terminal.

The functions of the modules in the base station can be referred to the description of the functions implemented by the base station in the foregoing embodiments, and are not repeated here.

Based on the same technical concept, the embodiment of the application also provides a terminal.

Referring to fig. 5, a schematic structural diagram of a terminal provided in the embodiment of the present application is shown. The terminal may include: a receiving module 501 and a processing module 502.

A receiving module 501, configured to receive power saving signal search space configuration information and first subset indication information and second subset indication information sent by a base station; wherein the power saving signal search space configuration information includes an interception period, the interception period is equal to the short DRX period or shorter than the long DRX period (for example, the interception period may be a common divisor of the long DRX period, or may not be a common divisor of the long DRX period), the first subset indication information is used to indicate a first subset of the interception opportunities corresponding to the interception period, the second subset indication information is used to indicate a second subset of the interception opportunities corresponding to the interception period, the first subset corresponds to the interception opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the interception opportunities of the power saving signal when the terminal is in the long DRX period;

a processing module 502, configured to monitor a power saving signal according to the power saving signal search space configuration information and the first subset indication information and the second subset indication information; and when the terminal is in the short DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the first subset indicated by the first subset indication information, and when the terminal is in the long DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the second subset indicated by the second subset indication information.

The functions of the modules in the terminal can be referred to the description of the functions implemented by the terminal in the foregoing embodiments, and are not repeated here.

Based on the same technical concept, the embodiment of the application also provides a communication device.

Fig. 6 schematically shows a structure of a communication apparatus in an embodiment of the present application. The communication device may be a base station. As shown, the communication device may include: a processor 601, a memory 602, a transceiver 603, and a bus interface 604.

The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations. The transceiver 603 is used for receiving and transmitting data under the control of the processor 601.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 601, and various circuits of memory, represented by memory 602, 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 processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations.

The processes disclosed in the embodiments of the present application can be applied to the processor 601, or implemented by the processor 601. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The processor 601 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 601 is configured to read the computer instructions in the memory 602 and execute the functions implemented by the base station in the flowchart shown in fig. 2.

Fig. 7 schematically shows a structure of a communication apparatus in an embodiment of the present application. The communication device may be a terminal. As shown, the communication device may include: a processor 701, a memory 702, a transceiver 703, and a bus interface 704.

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations. The transceiver 703 is used for receiving and transmitting data under the control of the processor 701.

The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 702, 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 processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations.

The processes disclosed in the embodiments of the present application may be applied to the processor 701, or implemented by the processor 701. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and completes the steps of the signal processing flow in combination with the hardware thereof.

Specifically, the processor 701 is configured to read the computer instructions in the memory 702 and execute the functions implemented on the terminal side in the flow shown in fig. 3.

An embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are configured to enable the computer to execute the method performed by the base station in the foregoing embodiment.

The embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable the computer to execute the method executed by the terminal in the foregoing embodiment.

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

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

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

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A power saving signal configuration method, comprising:

a base station configures power saving signal search space configuration information and first subset indication information and second subset indication information, wherein the power saving signal search space configuration information comprises a monitoring period, the monitoring period is equal to a short Discontinuous Reception (DRX) period or shorter than a long DRX period, the first subset indication information is used for indicating a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used for indicating a second subset of monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of power saving signals when a terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signals when the terminal is in the long DRX period;

and the base station sends the power-saving signal search space configuration information, the first subset indication information and the second subset indication information to the terminal.

2. The method of claim 1, wherein the first subset includes N-1 listening periods every other one of the listening periods, where N is an integer and N ≧ 0;

the second subset comprises M-1 monitoring periods at intervals in the monitoring periods, wherein M is an integer and M is K × M, M is an integer and M is larger than or equal to 1, and K is a multiple of the long DRX period compared with the short DRX period.

3. The method according to claim 1 or 2, wherein a value of the first subset indication information is N, a listening period included in the first subset indicated by the first subset indication information is N-1 listening periods every interval in the listening period, N is an integer and N ≧ 0;

the value of the second subset indication information is M, the second subset indicated by the second subset indication information includes M-1 monitoring cycles at intervals in the monitoring cycles, M is an integer and M is K × M, M is an integer and M is greater than or equal to 1, and K is a multiple of the long DRX cycle compared with the short DRX cycle.

4. The method of claim 1, wherein the search space configuration information further comprises a first listening opportunity offset and a second listening opportunity offset;

the first monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used when the terminal is in a short DRX cycle, and the second monitoring opportunity offset is a monitoring opportunity offset of a power saving signal used when the terminal is in a long DRX cycle.

5. The method of claim 4, wherein at least one of the first listening opportunity offset and the second listening opportunity offset is configured by any one of:

displaying an indication through monitoring opportunity offset indication information in the search space configuration information;

indicating by an interval value configured by high-level signaling, wherein the interval value is an interval value from a starting point of a DRX activation period;

indicating an interval range configured by searching a space or high-level signaling, wherein the interval range is an interval range from a starting point of a DRX activation period;

and indicating the monitoring deviation value configured in an interval range configured by a search space or high-level signaling, wherein the interval range is the interval range from the starting point of the DRX active period.

6. The method of claim 1, wherein the search space configuration information further comprises a first listening time window and a second listening time window;

the first monitoring time window is the time slot length of continuously monitoring the electricity-saving signal when the terminal is in a short DRX period, and the second monitoring time window is the time slot length of continuously monitoring the electricity-saving signal when the terminal is in a long DRX period.

7. The method of claim 1, wherein the search space configuration information further comprises a first set of control resources and a second set of control resources associated with the search space;

the first set of control resources is used to indicate resources occupied by the power saving signal during the short DRX cycle, and the second set of control resources is used to indicate resources occupied by the power saving signal during the long DRX cycle.

8. The method of claim 1, wherein the search space configuration information further includes a first power saving signal listening pattern and a second power saving signal listening pattern;

the first power saving signal monitor pattern is a power saving signal monitor pattern used when the terminal is in a short DRX cycle, and the second power saving signal monitor pattern is a power saving signal monitor pattern used when the terminal is in a long DRX cycle.

9. The method of any one of claims 1-2, 4-8, further comprising:

the base station determines a DRX period of the terminal according to DRX configuration information and data transmission conditions of the terminal, searches space configuration information according to the DRX period of the terminal and the power-saving signal, determines a monitoring opportunity of the power-saving signal according to one of the first subset indication information and the second subset indication information, and sends the power-saving signal according to the monitoring opportunity of the power-saving signal; wherein the DRX period of the terminal comprises a short DRX period or a long DRX period.

10. A power saving signal transmission method, comprising:

a terminal receives power-saving signal search space configuration information, first subset indication information and second subset indication information sent by a base station; wherein the power saving signal search space configuration information comprises a monitoring period, the monitoring period is equal to a short Discontinuous Reception (DRX) period or shorter than a long DRX period, the first subset indication information is used for indicating a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used for indicating a second subset of the monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period;

the terminal monitors the power saving signal according to the power saving signal search space configuration information, the first subset indication information and the second subset indication information; and when the terminal is in the short DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the first subset indicated by the first subset indication information, and when the terminal is in the long DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the second subset indicated by the second subset indication information.

11. The method of claim 10, wherein the first subset includes N-1 listening periods every other one of the listening periods, where N is an integer and N ≧ 0;

12. The method according to claim 10 or 11, wherein a value of the first subset indication information is N, a listening period included in the first subset indicated by the first subset indication information is N-1 listening periods every interval in the listening period, N is an integer and N ≧ 0;

the value of the second subset indication information is M, the monitoring period included in the second subset indicated by the second subset indication information is M-1 monitoring periods in each monitoring period, M is an integer and M is K × M, M is an integer and M is greater than or equal to 1, and K is a multiple of the long DRX period compared with the short DRX period.

13. The method of claim 10, wherein the power saving signal search space configuration information further comprises a first listening opportunity offset and a second listening opportunity offset, wherein the first listening opportunity offset is a listening opportunity offset for a power saving signal used by the terminal when in a short DRX cycle, and the second listening opportunity offset is a listening opportunity offset for a power saving signal used by the terminal when in a long DRX cycle;

the terminal monitors the power-saving signal according to the power-saving signal search space configuration information, and the method comprises the following steps:

when the terminal is in a short DRX period, monitoring the power-saving signal according to the position corresponding to the first monitoring opportunity offset, or continuously monitoring the power-saving signal in a first monitoring opportunity offset range corresponding to the first monitoring opportunity offset, or monitoring the power-saving signal according to an offset value configured in the first monitoring opportunity offset range corresponding to the first monitoring opportunity offset;

and when the terminal is in the long DRX period, monitoring the power-saving signal according to the position corresponding to the second monitoring opportunity offset, or continuously monitoring the power-saving signal in a second monitoring opportunity offset range corresponding to the second monitoring opportunity offset, or monitoring the power-saving signal according to an offset value configured in the second monitoring opportunity offset range corresponding to the second monitoring opportunity offset.

14. The method of claim 13, wherein at least one of the first listening opportunity offset and the second listening opportunity offset is determined by any one of:

determining according to monitoring opportunity offset indication information in the search space configuration information;

determining according to an interval value configured by a high-level signaling, wherein the interval value is an interval value from a starting point of a DRX activation period;

determining an interval range configured according to a search space or a high-level signaling, wherein the interval range is an interval range from a starting point of a DRX activation period;

and determining according to a monitoring deviation value configured in an interval range configured in a search space or a high-level signaling, wherein the interval range is an interval range from the starting point of the DRX activation period.

15. The method of claim 10, wherein the power saving signal search space configuration information further comprises a first listening time window and a second listening time window, wherein the first listening time window is a length of a slot for the terminal to continuously listen for the power saving signal when the terminal is in a short DRX cycle, and the second listening time window is a length of a slot for the terminal to continuously listen for the power saving signal when the terminal is in a long DRX cycle;

when the terminal is in a short DRX period, monitoring a power-saving signal in a corresponding time slot length according to the first monitoring time window;

and when the terminal is in the long DRX period, monitoring the power-saving signal in the corresponding time slot length according to the second monitoring time window.

16. The method of claim 10, wherein the power saving signal search space configuration information further comprises a first set of control resources and a second set of control resources associated with the search space, wherein the first set of control resources is used to indicate time frequency domain resources occupied by power saving signals for short DRX cycles, and the second set of control resources is used to indicate time frequency domain resources occupied by power saving signals for long DRX cycles;

when the terminal is in a short DRX period, monitoring a power-saving signal in a corresponding time-frequency domain resource according to the first control resource set;

and when the terminal is in the long DRX period, monitoring the power-saving signal in the corresponding time-frequency domain resource according to the second control resource set.

17. The method of claim 10, wherein the power-saving signal search space configuration information further includes a first power-saving signal monitor pattern and a second power-saving signal monitor pattern, wherein the first power-saving signal monitor pattern is a power-saving signal monitor pattern used when the terminal is in a short DRX cycle, and the second power-saving signal monitor pattern is a power-saving signal monitor pattern used when the terminal is in a long DRX cycle;

when the terminal is in a short DRX period, carrying out power-saving signal monitoring according to the first power-saving signal monitoring pattern;

and when the terminal is in the long DRX period, carrying out power-saving signal monitoring according to the second power-saving signal monitoring pattern.

18. A base station, comprising:

a processing module, configured to configure power saving signal search space configuration information, a first subset indication information and a second subset indication information, where the power saving signal search space configuration information includes a monitoring cycle, the monitoring cycle is equal to a short Discontinuous Reception (DRX) cycle or shorter than a long DRX cycle, the first subset indication information is used to indicate a first subset of monitoring opportunities corresponding to the monitoring cycle, the second subset indication information is used to indicate a second subset of monitoring opportunities corresponding to the monitoring cycle, the first subset corresponds to monitoring opportunities of a power saving signal when a terminal is in the short DRX cycle, and the second subset corresponds to monitoring opportunities of the power saving signal when the terminal is in the long DRX cycle;

a sending module, configured to send the power saving signal search space configuration information, the first subset indication information, and the second subset indication information to the terminal.

19. A terminal, comprising:

the receiving module is used for receiving power-saving signal search space configuration information, first subset indication information and second subset indication information sent by a base station; wherein the power saving signal search space configuration information comprises a monitoring period, the monitoring period is equal to a short Discontinuous Reception (DRX) period or shorter than a long DRX period, the first subset indication information is used for indicating a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used for indicating a second subset of the monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period;

the processing module is used for monitoring the power saving signal according to the power saving signal search space configuration information, the first subset indication information and the second subset indication information; and when the terminal is in the short DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the first subset indicated by the first subset indication information, and when the terminal is in the long DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the second subset indicated by the second subset indication information.

20. A communications apparatus, comprising: a processor, memory, transceiver; the processor is used for reading the computer instructions in the memory and executing:

configuring power saving signal search space configuration information, a first subset indication information and a second subset indication information, wherein the power saving signal search space configuration information comprises a monitoring period, the monitoring period is equal to a short Discontinuous Reception (DRX) period or a value shorter than the long DRX period, the first subset indication information is used for indicating a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used for indicating a second subset of monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period;

transmitting, by the transceiver, the power saving signal search space configuration information, the first subset indication information, and the second subset indication information to the terminal.

21. The communication apparatus according to claim 20, wherein the first subset includes N-1 listening periods every other one of the listening periods, N being an integer and N ≧ 0;

22. The communication apparatus according to claim 20 or 21, wherein a value of the first subset indication information is N, a first subset indicated by the first subset indication information includes N-1 listening periods every other one of the listening periods, N is an integer and N ≧ 0;

23. The communications apparatus of claim 20, wherein the search space configuration information further includes a first listening opportunity offset and a second listening opportunity offset;

24. The communications apparatus of claim 23, wherein at least one of the first listening opportunity offset and the second listening opportunity offset is configured by one of:

25. The communications apparatus of claim 20, wherein the search space configuration information further comprises a first listening time window and a second listening time window;

26. The communications apparatus of claim 20, the search space configuration information further includes a first set of control resources and a second set of control resources associated with a search space;

27. The communications apparatus of claim 20, wherein the search space configuration information further comprises a first power saving signal listening pattern and a second power saving signal listening pattern;

28. The communications apparatus of any of claims 20-21, 23-27, wherein the processor is further configured to:

determining a DRX period of the terminal according to DRX configuration information and data transmission conditions of the terminal, searching space configuration information according to the DRX period of the terminal and the power-saving signal, determining a monitoring opportunity of the power-saving signal according to one of the first subset indication information and the second subset indication information, and sending the power-saving signal according to the monitoring opportunity of the power-saving signal; wherein the DRX period of the terminal comprises a short DRX period or a long DRX period.

29. A communications apparatus, comprising: a processor, memory, transceiver; the processor is used for reading the computer instructions in the memory and executing:

receiving, by the transceiver, power saving signal search space configuration information, first subset indication information, and second subset indication information transmitted by a base station; wherein the power saving signal search space configuration information comprises a monitoring period, the monitoring period is equal to a short Discontinuous Reception (DRX) period or shorter than a long DRX period, the first subset indication information is used for indicating a first subset of monitoring opportunities corresponding to the monitoring period, the second subset indication information is used for indicating a second subset of the monitoring opportunities corresponding to the monitoring period, the first subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the short DRX period, and the second subset corresponds to the monitoring opportunities of the power saving signal when the terminal is in the long DRX period;

monitoring a power saving signal according to the power saving signal search space configuration information and the first subset indication information and the second subset indication information; and when the terminal is in the short DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the first subset indicated by the first subset indication information, and when the terminal is in the long DRX period, monitoring the power-saving signal according to the monitoring opportunity corresponding to the second subset indicated by the second subset indication information.

30. The communications apparatus as claimed in claim 29, wherein the first subset includes N-1 listening periods every other one of the listening periods, N is an integer and N ≧ 0;

31. The communication apparatus according to claim 29 or 30, wherein the value of the first subset indication information is N, the first subset indicated by the first subset indication information includes N-1 listening periods every other one of the listening periods, N is an integer and N ≧ 0;

32. The communications apparatus of claim 29, wherein the power saving signal search space configuration information further includes a first listening opportunity offset and a second listening opportunity offset, wherein the first listening opportunity offset is a listening opportunity offset for a power saving signal used by the terminal when in a short DRX cycle and the second listening opportunity offset is a listening opportunity offset for a power saving signal used by the terminal when in a long DRX cycle;

the processor is specifically configured to:

when the mobile terminal is in the short DRX period, monitoring the power-saving signal according to the position corresponding to the first monitoring opportunity offset, or continuously monitoring the power-saving signal in a first monitoring opportunity offset range corresponding to the first monitoring opportunity offset, or monitoring the power-saving signal according to an offset value configured in the first monitoring opportunity offset range corresponding to the first monitoring opportunity offset;

and when the mobile terminal is in the long DRX period, monitoring the power-saving signal according to the position corresponding to the second monitoring opportunity offset, or continuously monitoring the power-saving signal in a second monitoring opportunity offset range corresponding to the second monitoring opportunity offset, or monitoring the power-saving signal according to an offset value configured in the second monitoring opportunity offset range corresponding to the second monitoring opportunity offset.

33. The communications apparatus of claim 32, wherein at least one of the first listening opportunity offset and the second listening opportunity offset is determined by one of:

and determining according to a monitoring offset value configured for the search space in an interval range configured by the search space or higher layer signaling, wherein the interval range is an interval range from the starting point of the DRX activation period.

34. The communications apparatus of claim 29, wherein the power saving signal search space configuration information further includes a first listening time window and a second listening time window, wherein the first listening time window is a length of a slot for the terminal to continuously listen for power saving signals when the terminal is in a short DRX cycle, and the second listening time window is a length of a slot for the terminal to continuously listen for power saving signals when the terminal is in a long DRX cycle;

the processor is specifically configured to:

monitoring a power-saving signal in a corresponding time slot length according to the first monitoring time window when the mobile terminal is in a short DRX period;

and monitoring the power-saving signal in the corresponding time slot length according to the second monitoring time window when the mobile terminal is in the long DRX period.

35. The communications apparatus of claim 29, wherein the power saving signal search space configuration information further includes a first set of control resources and a second set of control resources associated with a search space, wherein the first set of control resources is utilized to indicate time frequency domain resources occupied by power saving signals for short DRX cycles and the second set of control resources is utilized to indicate time frequency domain resources occupied by power saving signals for long DRX cycles;

the processor is specifically configured to:

monitoring power-saving signals in corresponding time-frequency domain resources according to the first control resource set when the mobile terminal is in a short DRX period;

and when the current DRX period is in the long DRX period, monitoring the power saving signal in the corresponding time-frequency domain resource according to the second control resource set.

36. The communications apparatus of claim 29, wherein the power saving signal search space configuration information further comprises a first power saving signal listening pattern and a second power saving signal listening pattern, wherein the first power saving signal listening pattern is a power saving signal listening pattern used when the terminal is in a short DRX cycle, and the second power saving signal listening pattern is a power saving signal listening pattern used when the terminal is in a long DRX cycle;

the processor is specifically configured to:

when the first power saving signal monitoring pattern is in a short DRX period, monitoring the power saving signal according to the first power saving signal monitoring pattern;

and when the current time is in the long DRX period, carrying out power-saving signal monitoring according to the second power-saving signal monitoring pattern.

37. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1-9.

38. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 10-17.