CN110972236B

CN110972236B - Energy-saving signal transmission method, terminal and network side equipment

Info

Publication number: CN110972236B
Application number: CN201811134414.8A
Authority: CN
Inventors: 王加庆; 郑方政; 高秋彬
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2018-09-27
Filing date: 2018-09-27
Publication date: 2022-04-08
Anticipated expiration: 2038-09-27
Also published as: WO2020063657A1; TWI795597B; CN110972236A; TW202014014A

Abstract

The embodiment of the invention provides an energy-saving signal transmission method, a terminal and network side equipment, wherein the method comprises the following steps: the method comprises the steps that a terminal detects an energy-saving signal, wherein the energy-saving signal carries at least one of an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier; and if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, the terminal enters an awakening state. Therefore, the terminal is only indicated to be awakened when the energy-saving signal is detected, and the terminal is accessed to an awakening state, so that the power consumption of the terminal can be saved.

Description

Energy-saving signal transmission method, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an energy saving signal transmission method, a terminal, and a network side device.

Background

In a 5G New Radio (NR) system, a larger bandwidth, a higher throughput, a more complex service, and a more complex processing technique matched thereto are supported. In addition, the terminal needs to detect the downlink control channel in an IDLE state (RRC _ IDLE), an Inactive state (RRC _ Inactive), and a Connected state (RRC _ Connected). In the existing communication system, the detection positions for detecting the downlink control channel are all configured in advance, and a plurality of detection positions are configured in advance, and the terminal needs to detect at each detection position. For example: in a Discontinuous Reception (DRX) scenario, the terminal needs to detect a downlink control channel every active time (On duration) period. This results in a high power consumption of the terminal.

Disclosure of Invention

The embodiment of the invention provides an energy-saving signal transmission method, a terminal and network side equipment, and aims to solve the problem of high power consumption of the terminal.

In order to achieve the above object, an embodiment of the present invention provides an energy saving signal transmission method, including:

the method comprises the steps that a terminal detects an energy-saving signal, wherein the energy-saving signal carries at least one of an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier;

and if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, the terminal enters an awakening state.

Optionally, the energy saving identifier is an identifier or a group identifier of a terminal that needs to be awakened in the energy saving area.

Optionally, the energy-saving signal carries a basic sequence and a scrambling sequence, where one basic sequence is used to represent an energy-saving identifier and one scrambling sequence is used to represent an energy-saving region identifier.

Optionally, the energy saving signal is an N-level energy saving signal, where N is an integer greater than or equal to 1.

Optionally, if N is an integer greater than 1, the N-level energy saving signal is time division multiplexed, or the N-level energy saving signal is frequency division multiplexed.

Optionally, if the N-level energy saving signals are time division multiplexed, the time domain resources occupied by the N-level energy saving signals are integer multiples of a time slot; or

And if the N-level energy-saving signals are subjected to frequency division multiplexing, the frequency domain resource time domain occupied by the N-level energy-saving signals is integral multiple of a specific frequency domain resource value.

Optionally, each stage of the N stages of power saving signals has the following characteristics:

one or more base sequence overlays;

carrying out scrambling operation on the superposed result and a scrambling sequence;

the result after the scrambling operation is segmented to obtain at least one subsequence;

mapping the at least one subsequence to a corresponding transmission resource;

or, each stage of the N stages of power saving signals has the following characteristics:

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

the at least one subsequence performs an Inverse Fast Fourier Transform (IFFT) operation;

carrying out scrambling operation on the result after the IFFT operation and a scrambling sequence;

and mapping the results after the scrambling operation to corresponding transmission resources respectively.

Optionally, the mapping of the at least one sub-sequence to corresponding transmission resources includes:

and the sub-carrier mapping is carried out on the at least one sub-sequence, and the sub-sequence subjected to the sub-carrier mapping is mapped to corresponding transmission resources through an Inverse Fast Fourier Transform (IFFT) operation.

Optionally, the N-level power saving signal is at least used to indicate whether to wake up all terminals corresponding to the power saving region.

Optionally, if the number of terminals to be awakened in the energy saving region is greater than a preset threshold, the N-level energy saving signal is at least used to instruct to awaken all corresponding terminals in the energy saving region.

Optionally, part of the signals in the N-stage power saving signals are indicated by different cyclic shifts of the same sequence as follows:

whether to awaken all corresponding terminals in the energy-saving area; or

And awakening the terminal or part of the terminals corresponding to the energy-saving area, or not awakening any terminal.

Optionally, the N-level energy saving signal includes a multi-level sequence, where a level one of the multi-level sequence is used to indicate whether to wake up all terminals corresponding to the energy saving region; or

The N-level energy-saving signal comprises a specific multi-level sequence which is used for indicating whether to awaken all corresponding terminals in the energy-saving area or not; or

And the N-level energy-saving signal wakes up all corresponding terminals in the energy-saving area through the specific value indication of the energy-saving identification.

Optionally, the N-level power saving signal carries a plurality of power saving identifiers.

Optionally, the N-level power saving signal includes a multi-level sequence, and a single-level sequence carrying one or more base sequences exists in the multi-level sequence, where one base sequence is used to indicate one power saving identifier, or one base sequence combination is used to indicate one power saving identifier, where the base sequence combination is a combination sequence of multiple base sequences belonging to different single-level sequences.

Optionally, a single-stage sequence for indicating whether to wake up all terminals corresponding to the power saving region exists in the multi-stage sequence.

Optionally, the indication of whether to wake up the single-stage sequences of all terminals corresponding to the energy-saving region is different from a size of time domain or frequency domain resources occupied by the single-stage sequences carrying the one or more basic sequences.

Optionally, the time domain or frequency domain resources occupied by the plurality of single-level sequences carrying the base sequence are the same in size.

Optionally, the basic sequence carried by the energy-saving signal includes any one of:

orthogonal sequence, gold sequence, ZC sequences of different roots, Kasami sequence, m sequence, cyclic shift of ZC sequences of the same root, cyclic shift of ZC sequences of different roots; and/or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

Optionally, if the number of terminals that need to be awakened in the same period in the energy saving region is in the first interval, the basic sequence carried by the energy saving signal includes any one of the following items:

cyclic shift of gold sequence, ZC sequence of different roots, Kasami sequence and m sequence;

if the number of terminals to be awakened in the same period in the energy-saving region is in a second interval, the basic sequence carried by the energy-saving signal includes any one of the following items:

orthogonal sequences, m-sequences, cyclic shifts of ZC sequences of the same root, and cyclic shifts of ZC sequences of different roots.

If the number of terminals to be awakened in the same period in the energy-saving region is in a third interval, the basic sequence carried by the energy-saving signal includes any one of the following items:

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

wherein the numerical value of the first interval is smaller than the numerical value of the second interval, and the numerical value of the second interval is smaller than the numerical value of the third interval;

and/or the scrambling code sequence comprises a gold sequence.

Optionally, the detecting, by the terminal, the power saving signal includes:

the terminal detects the correlation among the N-level energy-saving signals, and if the correlation is higher than a preset threshold value, the N-level energy-saving signals are determined to be successfully detected;

and if the correlation is not higher than the preset threshold value, determining that the detection fails, and performing combined detection on the corresponding candidate time position, the candidate frequency domain position or the candidate time-frequency domain position.

The embodiment of the invention also provides an energy-saving signal transmission method, which comprises the following steps:

the method comprises the steps that network side equipment sends an energy-saving signal, wherein the energy-saving signal carries an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of gold sequence, m sequence, ZC sequence of different roots, Kasami sequence and m sequence;

orthogonal sequence, m-sequence, cyclic shift of ZC sequence of same root.

cyclic shift of orthogonal sequence, gold sequence, Kasami sequence, ZC sequence of different roots;

and/or the scrambling code sequence comprises a gold sequence.

An embodiment of the present invention further provides a terminal, including:

the device comprises a detection module, a processing module and a control module, wherein the detection module is used for detecting an energy-saving signal, the energy-saving signal carries at least one of an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier;

and the awakening module is used for entering an awakening state if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened.

An embodiment of the present invention further provides a network side device, including:

the energy saving device comprises a sending module and a processing module, wherein the sending module is used for sending an energy saving signal, the energy saving signal carries an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal needing to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier.

An embodiment of the present invention further provides a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to detect an energy saving signal, where the energy saving signal carries at least one of an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier;

if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, entering an awakening state;

alternatively, the first and second electrodes may be,

the processor is configured to: and if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, entering an awakening state.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

Optionally, the detecting the power saving signal includes:

detecting the correlation among the N-level energy-saving signals, and if the correlation is higher than a preset threshold value, determining that the N-level energy-saving signals are successfully detected;

An embodiment of the present invention further provides a network side device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to send an energy saving signal, where the energy saving signal carries an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

Optionally, the single-stage sequence indicating whether to wake up all terminals corresponding to the energy-saving region is different from a time domain or frequency domain resource occupied by the single-stage sequence carrying the one or more base sequences.

Optionally, time domain or frequency domain resources occupied by the multiple rank sequences carrying the base sequence are the same.

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps in the method for transmitting an energy-saving signal at a terminal side provided in the embodiment of the present invention, or the computer program is executed by the processor to implement the steps in the method for transmitting an energy-saving signal at a network side device side provided in the embodiment of the present invention.

In the embodiment of the invention, a terminal detects an energy-saving signal, wherein the energy-saving signal carries at least one of an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier; and if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, the terminal enters an awakening state. Therefore, the terminal is only indicated to be awakened when the energy-saving signal is detected, and the terminal is accessed to an awakening state, so that the power consumption of the terminal can be saved.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which embodiments of the present invention are applicable;

fig. 2 is a flowchart of a method for transmitting an energy-saving signal according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a power saving signal provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of another power saving signal provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of another power saving signal provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of another power saving signal provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of another power saving signal provided by an embodiment of the present invention;

fig. 8 is a flowchart of another power saving signal transmission method according to an embodiment of the present invention;

fig. 9 is a structural diagram of a terminal according to an embodiment of the present invention;

fig. 10 is a structural diagram of a network side device according to an embodiment of the present invention;

fig. 11 is a block diagram of another terminal provided in an embodiment of the present invention;

fig. 12 is a block diagram of another network-side device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is a schematic diagram of a network structure to which the embodiment of the present invention is applicable, and as shown in fig. 1, the network structure includes a terminal 11 and a network side device 12, where the terminal 11 may be a User Equipment (UE) or other terminal devices, for example: terminal side equipment such as a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device) is not limited to a specific type of terminal in the embodiments of the present invention. The network side device 12 may be a base station, for example: macro station, LTE eNB, 5G NR NB, etc.; the network side device may also be a small station, such as a Low Power Node (LPN), pico, femto, or an Access Point (AP); the base station may also be a network node that is composed of a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) whose management is and controls. It should be noted that, in the embodiment of the present invention, the specific type of the network-side device is not limited.

Referring to fig. 2, fig. 2 is a flowchart of an energy saving signal transmission method according to an embodiment of the present invention, as shown in fig. 2, including the following steps:

201. the method comprises the steps that a terminal detects an energy-saving signal, wherein the energy-saving signal carries at least one of an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier;

202. and if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, the terminal enters an awakening state.

In this embodiment of the present invention, the power saving signal (power saving signal) may be a signal for waking up one or more terminals, for example: the energy saving Signal may be a Wake Up Signal (WUS), but is not limited thereto, and for example: the energy-saving signal may also be another signal defined in the protocol, or another signal pre-agreed by the network side device and the terminal.

In addition, in the embodiment of the present invention, the power saving signals (power saving signals) in the Connected state (RRC-Connected state) and the Idle state (RRC-Idle state) can be designed uniformly, and the WUS is one of the power saving signals, and the WUS and the power saving signals may not be distinguished in the following description.

The energy saving identification may be a wake up ID, and the energy saving region identification may be a wake up area ID. In addition, the power saving signal may include one or more power saving flags, and in some embodiments, one power saving flag corresponds to one terminal, or different combinations among the plurality of power saving flags correspond to different terminals.

The energy-saving area identifier may refer to a home area identifier of a terminal corresponding to the energy-saving identifier, for example, the energy-saving area identifier may refer to a cell identifier (cell ID) in an RRC-Connected state, and may refer to a tracking area identifier (Track area ID) in an RRC-Idle state or a smaller wake-up area obtained by dividing the tracking area (Track area) into a plurality of areas.

One or more terminals can be awakened through at least one of the energy-saving identifier and the energy-saving area identifier, so that the power consumption of the terminals is saved.

As an optional implementation manner, the energy saving identifier is an identifier or a group identifier of a terminal that needs to be woken up in the energy saving area.

In this embodiment, the energy-saving identifier may be an identifier of a terminal or an identifier of a terminal group, so that the terminal may determine whether to wake up the terminal according to the identifier.

Of course, in the embodiment of the present invention, the energy saving identifier corresponds to the terminal that needs to be awakened in the energy saving area, and is not limited to be the identifier of the terminal or the identifier of the terminal group, for example: it is also possible to set some special power saving flags to wake up all terminals corresponding to the power saving areas, that is, the power saving flags correspond to all terminals described herein.

It should be noted that all the terminals corresponding to the energy saving area may refer to all the terminals that need to be woken up in the energy saving area at the current time, for example: the wake-up time refers to all terminals that need to be woken up in a certain or some DRX active time (DRX On duration, abbreviated as DRX On) cycle/paging cycle corresponding to the wake-up time, where the wake-up time is located before the certain or some DRX On cycle/paging cycle, and the wake-up time may be a sending time or a detection time of the energy saving signal. Of course, in some scenarios, all the corresponding terminals may also refer to all the terminals in the energy saving area.

As an optional implementation manner, the energy saving signal carries a base sequence and a scrambling sequence, where one base sequence is used to represent one energy saving identifier and one scrambling sequence is used to represent one energy saving region identifier.

The energy-saving signal carries a basic sequence and a scrambling sequence, which can be understood as that the terminal can detect the basic sequence and the scrambling sequence by detecting the energy-saving signal. And the one base sequence may represent a power-saving flag, the one base sequence may represent a wake-up ID, and the one scrambling sequence may represent a power-saving region flag, and the one scrambling sequence may represent a wake-up area ID. In addition, the power saving signal may include a plurality of basic sequences, so that a plurality of terminals may be woken up.

As an optional implementation manner, the power saving signal is an N-level power saving signal, where N is an integer greater than or equal to 1.

Preferably, N is an integer greater than or equal to 2, so that the terminal can be woken up by the multi-level power saving signal, and thus more terminals can be woken up, or all terminals corresponding to the power saving area can be woken up in a simpler manner.

In this embodiment, the N-level power saving signals may be time division multiplexed or frequency division multiplexed. Specifically, the number of stages of the multi-stage energy saving signal and the time and frequency resources corresponding to each stage of energy saving signal may be determined first.

Preferably, if the N-level energy saving signals are time division multiplexed, the time domain resources occupied by the N-level energy saving signals are integer multiples of a time slot; or

For example: for example, with a level 2 power saving signal, WUS1 occupies 4 OFDM symbols, WUS2 occupies 10 OFDM symbols, or WUS1 occupies 3 OFDM symbols and WUS2 occupies 11 OFDM symbols. In addition, the time domain resources occupied by the power saving signal may be different in different time slots, for example: WUS1 occupies 3 OFDM symbols in the first slot and WUS2 occupies 11 OFDM symbols, while the second slot, WUS1 occupies 2 OFDM symbols and WUS2 occupies 12 OFDM symbols, or the second slot WUS1 is not transmitting, and only used to transmit WUS2, etc.

In the case of frequency division multiplexing, the specific frequency domain resource value may be defined in a protocol, or a protocol between a network side device and a terminal, or a configuration of the network side device to the terminal, and the like, which is not limited in this respect.

one or more base sequence overlays;

the at least one sub-sequence is mapped to a corresponding transmission resource.

The Scrambling operation may be bit-wise multiplying the Scrambling sequence (Scrambling sequence) by the sum of the Base sequence (Base seq), although addition or other operations are not excluded.

This embodiment can realize scrambling in the frequency domain.

In addition, the mapping of the at least one sub-sequence to the corresponding transmission resource may include:

The transmission resource herein may be a time domain resource corresponding to a subcarrier, for example: symbol (Symbol).

For example: as shown in fig. 3, N Base sequences (Base seq) are superimposed and scrambled (for example, multiplied) with a Scrambling sequence (Scrambling sequence), then divided to generate at least one Sub-sequence (Sub-sequence generation), and then mapped to corresponding symbols (Symbol) for transmission, such as Sub-carrier mapping, IFFT operation, Cyclic Prefix (CP) addition, and finally mapped to corresponding symbols (Symbol).

Of course, in the embodiment of the present invention, the frequency domain scrambling code is not limited, and the time domain scrambling code may also be performed, for example: the following characteristics can exist in each stage of the N stages of energy saving signals:

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

In this embodiment, after the superposition, the scrambling operation may not be performed, but an operation of converting to the time domain such as IFFT may be performed after the sub-sequence generation step, and the time domain scrambling operation may be introduced after the IFFT, specifically, the time domain scrambling operation may be introduced before adding the CP after the IFFT, and the length of the time domain scrambling sequence may be an integer multiple of the length of the sub-sequence, or may be agreed between the base station and the terminal.

In addition, in the above embodiment of the frequency domain scrambling code or the time domain scrambling code, the terminal may detect the energy-saving signal only by detecting its corresponding basic sequence, and does not need to detect other superimposed sequences. Of course, in other embodiments, the same shall apply, and will not be described in detail later.

In the embodiment, all the corresponding terminals in the energy-saving area can be awakened directly, so that the energy-saving signal overhead is reduced. In addition, the N-level power saving signal at least indicates whether to wake up all terminals corresponding to the power saving region, where a part of the N-level power saving signal is used to indicate whether to wake up all terminals corresponding to the power saving region.

In the embodiment, when the number of the terminals to be awakened is greater than the preset threshold value, all the corresponding terminals in the energy-saving area can be awakened through the N-level energy-saving signals, so that the energy-saving signal overhead is reduced.

whether to awaken all corresponding terminals in the energy-saving area; or

The partial signal may be a first-stage power saving signal of the N-stage power saving signals, and the different cyclic shifts of the same sequence may be different cyclic shifts of the M sequence. For example: one cyclic shift indicates that the sequence can wake up all the corresponding terminals in the power saving region, another cyclic shift indicates that the corresponding part of the terminals is woken up, and the third cyclic shift indicates that no power saving signal is sent subsequently at the position, i.e. no terminal is woken up.

If only two cyclic shifts are available, the cyclic shifts are only used to indicate whether to wake up all corresponding terminals in the power saving region. The basic sequence corresponding to the first-stage power saving signal does not indicate specific power saving identification information. If the terminal detects the first-stage energy-saving signal, if the first-stage sequence indicates to awaken all the corresponding terminals in the energy-saving area, the corresponding terminal cannot continuously detect the subsequent second-stage energy-saving signal; if the first-stage energy-saving signal indicates to wake up part of the terminals, the terminals continue to detect the energy-saving signals on subsequent possible time-frequency resources; if the third cyclic shift is detected, that is, no energy-saving signal is sent subsequently, the subsequent energy-saving signal and the repeated time slot thereof are not detected, so that the terminal can be prevented from detecting the energy-saving signals in a plurality of basic time units.

In this embodiment, the power consumption of the terminal can be saved by the above indication.

The N-level power saving signal may include a multi-level sequence, and each level of the power saving signal may include a one-level sequence. In time division multiplexing, as shown in fig. 4, a first-stage energy-saving signal (e.g., WUS1) is generated by a Base sequence 1(Base seq1), and a second-stage energy-saving signal (e.g., WUS2) is generated by a plurality of other Base sequences (Base seq1), wherein the manner of generation can be as shown in fig. 3, and is not described herein again. Of course, fig. 4 is only an example of a frequency domain scrambling code, and in this embodiment, a time domain scrambling code may be used.

The primary sequence may be a sequence in a certain stage of power saving signal, for example: the sequence in the first stage power saving signal can be indicated by different cyclic shifts of the sequence as follows:

whether to awaken all corresponding terminals in the energy-saving area; or

In this embodiment, the specific multilevel sequence may be a group of special multilevel sequences, so that whether to wake up all corresponding terminals in the energy saving region may be indicated by a combination of multilevel sequences, for example: whether to awaken all corresponding terminals in the energy-saving area; or awakening the terminal or part of the terminals corresponding to the energy-saving area, or not awakening any terminal.

In addition, in this embodiment, the specific value of the energy saving indicator may be a specific value of an energy saving indicator represented by a certain level sequence, or may be a specific value of an energy saving indicator corresponding to a multi-level basic sequence, or may be that all multi-level basic sequences (one basic sequence corresponds to one energy saving indicator) are configured to the specific value, so as to wake up all corresponding terminals in the energy saving area. The specific value may be equal to 0 or 1, which is not limited, so that all terminals in the energy saving area can be awakened by the specific value, for example: the corresponding multi-level base sequence with wake up ID 0 is used to wake up all corresponding users in wake up area.

As an optional implementation manner, the N-level power saving signal carries a plurality of power saving identifiers.

In this embodiment, a plurality of terminals may be awakened by the plurality of energy saving flags.

Wherein a single-level sequence indicates a certain one of the multi-level sequences, and the presence of a single-level sequence carrying one or more base sequences in the multi-level sequences is understood to mean that at least one of the multi-level sequences is present or the multi-level sequences carries one or more base sequences. For example: the multi-level sequence is a 3-level sequence, wherein the 2 nd level sequence and the 3 rd level sequence respectively carry one or more base sequences.

The above-mentioned basic sequence is used to indicate a power saving flag, it is understood that a basic sequence is used to wake up a terminal, for example: m1 basic sequences corresponding to WUS2 support M1 terminals, M2 basic sequences corresponding to WUS3 support M2 terminals, and the total number of the supported terminals is M1+ M2. For example, the base sequence of WUS2 theoretically supports a maximum of 256 users with a 256-bit Hadamard sequence, while the base sequence of WUS3 supports 256 users with a ZC sequence of 257 length truncated into 256 bits, and the maximum number of terminals supported is 256+ 256-512.

The above-mentioned one basic sequence combination is used to indicate one energy saving flag, and it is understood that a combination of a plurality of basic sequences of different level sequences indicates one energy saving flag. For example: the two sequences from WUS2 and WUS3 together indicate one terminal, i.e., one combination of multilevel sequences indicates one power saving flag. M1 basic sequences corresponding to WUS2 and M2 basic sequences corresponding to WUS3 respectively support M1 × M2 sequences, and the total number of corresponding terminals is M1 × M2. Since any sequence in WUS2 can be combined with M2 base sequences of WUS3, respectively, that is, combining one sequence in WUS2 with WUS3 can obtain M2 base sequence combinations, WUS2 and WUS3 can obtain M1 × M2 base sequence combinations, that is, M1 × M2 energy-saving markers. Taking M1 ═ M2 ═ 256 as an example, the total number of terminals supported is 256 × 256 ^ 2^16, so theoretically all the terminals in the connected state can be supported.

Optionally, a single-stage sequence for indicating whether to wake up all terminals corresponding to the energy saving region exists in the multi-stage sequence.

The single-stage sequence may be the first-stage sequence in the multi-stage sequence, but is not limited thereto. In this embodiment, the single-stage sequence indicating whether to wake up all the terminals corresponding to the energy-saving region and the stage sequence indicating the energy-saving identifier may be implemented in combination, so as to improve the wake-up function of the energy-saving signal.

The different time domain or frequency domain resources may indicate whether to wake up the single-stage sequences of all terminals corresponding to the energy-saving region, where the time domain or frequency domain resources occupied by the single-stage sequences are smaller than the single-stage sequences carrying one or more basic sequences, so that resource overhead may be saved. Of course, this is not limited, and for example, in some scenarios, it may be possible that the single-level sequence indicating whether to wake up all terminals corresponding to the power saving region occupies a larger time or frequency domain resource than the single-level sequence carrying the one or more base sequences.

Of course, in the embodiment of the present invention, the above description is not limited, for example: in other scenarios, the time domain or frequency domain resources occupied by the single-level sequence indicating whether to wake up all corresponding terminals within the power saving region may be the same size as the time domain or frequency domain resources occupied by the single-level sequence carrying the one or more base sequences.

In this embodiment, the same size of time domain or frequency domain resources occupied by different levels of sequences can be achieved, which can improve the resource utilization rate. Of course, in the embodiment of the present invention, this is not limited, and in some scenarios, the time domain or frequency domain resource size occupied by the multiple level sequences carrying the base sequence may be different.

In an optional implementation manner, the base sequence carried by the power saving signal includes any one of the following items:

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

The orthogonal sequence may be a Hadamard sequence or a wash sequence.

It should be noted that the above-mentioned multiple sequences or cyclic shifts of the sequences can be selected according to different scenarios, so as to improve the performance of the power saving signal.

For example: if the number of terminals to be awakened in the same period in the energy-saving region is in a first interval, the basic sequence carried by the energy-saving signal includes any one of the following items:

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

The first interval may refer to a time when the number of terminals that need to be wakened up is small, for example: is smaller than the first threshold value, such as less than or equal to 8. The basic sequence adopts the gold sequence, ZC sequences of different roots, Kasami sequences or cyclic shift of m sequences, and the non-orthogonal sequences are not sensitive to time frequency offset, so that a small number of terminals can be accurately and simply indicated. Of course, in the first interval, it is not excluded that the base sequence takes other sequences, such as: but is not limited to, orthogonal sequences, Kasami sequences, and the like.

The second interval may refer to a time when the number of terminals that need to be woken up is large, for example: greater than the first threshold value but less than or equal to a second threshold value, where the second threshold value is greater than the first threshold value, for example: if the number is greater than 8 but equal to or less than 128 (or 16, 32, 64), these terminals can be accurately indicated by using the orthogonal sequence, the cyclic shift of the ZC sequence of the same root, or the cyclic shift of the ZC sequence of a different root. Of course, in the second interval, other sequences are not excluded from the base sequence, such as: the sequence may be gold sequence, Kasami sequence, etc., and is not limited thereto.

The third interval may refer to a time period when the number of terminals that need to be woken up is large, for example: greater than a second threshold value, such as greater than 128 (or 16, 32, 64). Such terminals can be accurately indicated using cyclic shifts of orthogonal sequences, gold sequences, Kasami sequences, or ZC sequences of different roots. Of course, in the third interval, other sequences are not excluded from the base sequence, such as: but not limited thereto, a gold sequence, a Kasami sequence, a cyclic shift of a ZC sequence of a different root, and the like may be used.

In addition, in this embodiment, the scrambling sequence is preferably a gold sequence, so that the mutual compatibility of the gold sequences is good, and the performance of the scrambling sequence can be improved.

As an optional implementation manner, the detecting, by the terminal, a power saving signal includes:

In this embodiment, when the multi-level energy-saving signal is adopted, the terminal needs to detect the correlation of the multi-level energy-saving signal, and when the correlation is higher than the preset threshold, the terminal determines that the detection is successful, that is, the terminal detects the target sequence required by itself. If the correlation is not higher than the preset threshold value, it is determined that the detection fails, and merging detection needs to be performed at the candidate time position, the candidate frequency domain position or the candidate time-frequency domain position, so as to improve the detection performance of the terminal.

In addition, the candidate time position, the candidate frequency domain position, or the candidate time-frequency domain position may be a candidate time position, a candidate frequency domain position, or a candidate time-frequency domain position determined by the terminal according to a preset rule. For example: if the maximum transmission time T is allocated to the energy-saving signal of the terminal_maxThen several limited candidate time units, such as 1 slot,2 … T, are set at the corresponding candidate time positions_maxAnd slot, the terminal carries out merging detection on the energy-saving signals at the candidate time positions, and if the detection is failed, the terminal considers that no energy-saving signal exists.

It should be noted that various optional implementations provided in the embodiments of the present invention may be implemented in combination with each other, or may be implemented separately, and the following description exemplifies the implementation provided in the embodiments of the present invention with an energy saving signal as a WUS, an energy saving identifier as a wake up ID, an energy saving identifier area as a wake up area ID, a terminal as a UE, and a network side device as a base station.

Example 1:

the maximum number of terminals which need to be awakened before each DRX on in the connected state is 2^16, the awakening of the terminals rarely occurs in practice, the awakening of the terminals inevitably introduces multi-terminal interference, and the awakening performance is difficult to guarantee, so the design of power saving signals in simple design and idle and connected states can be reused, and the maximum number N of awakening users supported by the power saving signals in the connected state and the idle state can be limited_maxIs a medium number, e.g. N_maxOne value of 16/32/64.

Scheme 1:

as shown in fig. 3, K basic sequences, each corresponding to a wake up ID, perform an addition operation first for N sequences; then, frequency domain scrambling is carried out, the length of the frequency domain scrambling sequence is preferably consistent with that of the basic sequence, the scrambling sequence at least corresponds to wake up area ID, and time information such as subframe/time slot of DRX on period starting point and system frame information can also be contained. The scrambling procedure is preferably a bit-wise multiplication of the scrambling sequence with the sum of the base sequences, although the possibility of addition or other operations is not excluded; then dividing the scrambled sequence into M subsequences; each sub-sequence performs operations such as IFFT adding CP and the like to generate a time domain symbol, as shown in fig. 3, the scrambled sequence is divided into 14 sub-sequences and is mapped into 14 OFDM symbols, where 14 is only an example and does not exclude other values. And the divided subsequences and the generated OFDM symbolsThe numbers are not necessarily the same, for example, the scrambled sequence is divided into M sequences, but the number of OFDM symbols generated finally is not necessarily M, and may be, for example, an integer multiple of M, where a first slot generates M symbols, a second slot generates M symbols, and so on. The scrambling sequence is preferably a gold sequence, but is not limited to gold sequences as long as they are well-related, such as orthogonal sequences, m-sequences, Kasami sequences, etc. The base sequence is preferably taken as an orthogonal sequence, which may be a Hadamard/wash sequence, or as a different cyclic shift of a ZC sequence, if the base sequence is taken from a ZC sequence, supporting N_maxThe basic sequence of the user can not correspond to the ZC sequence of different roots for each sequence, but corresponds to the cyclic shift sequence of the ZC sequence, or the cyclic shift sequences of several (such as 1-2) ZC sequences of different roots.

As a more specific example, the base sequence may be taken from N_maxDifferent cyclic shifts of 128-long orthogonal Hadamard/wash sequences or 1-2 root ZC sequences, preferably gold sequences. In the scheme, when the number of the users needing to be awakened is more than N_maxIn this case, it is preferable that wake up IDs of all terminals in a cell that need to be woken up before a DRX on cycle are configured to be the same, so that all users can be woken up only by one sequence. Of course, other methods for waking up all terminals before the DRX on cycle by using one sequence may also be used, as described in the following embodiments.

The foregoing scrambling method does not exclude time domain scrambling, that is, after N basic sequences are summed, scrambling is not performed, but after the sub-sequence generating step, IFFT is performed to convert the N basic sequences into a time domain, and after IFFT, time domain scrambling is introduced before CP is added, where the length of the time domain scrambling sequence may be an integer multiple of the length of the sub-sequence, as agreed between the base station and the terminal. In the subsequent embodiments, except for the frequency domain scrambling, the possibility of time domain scrambling is not excluded, and in general, if the time domain can be accurately synchronized, the time domain scrambling performance is better, otherwise, the frequency domain scrambling performance is better.

The terminal detects the power provision signal only by detecting the corresponding basic sequence, and does not need to detect other superposed sequences.

Scheme 2A:

as shown in fig. 4, a two-stage (two-stage) WUS sequence is used as an example in this scheme, as shown in fig. 4. The two stages of WUS sequences have the same generation principle, each stage of WUS generation is to perform frequency domain scrambling on a basic sequence firstly and then convert the basic sequence into a time domain through operations such as a subsequence generation module and IFFT, and the like. The base sequence for the first level WUS is preferably selectable as multiple cyclic shifts of the m-sequence, such as 2-3 cyclic shifts: one cyclic shift may indicate that the sequence may wake up all UEs corresponding thereto, another cyclic shift may indicate that a part of the UEs corresponding thereto are awake, and a third cyclic shift may indicate that no WUS transmission follows the position, and if there are only two cyclic shifts, it is only used to indicate whether all UEs are awake. The underlying sequence corresponding to the first level WUS does not indicate specific wake up ID information. If the terminal detects the first-level WUS, if the first-level sequence indicates to awaken all the UE, the corresponding terminal cannot continuously detect the subsequent second-level WUS; if the first-level WUS indicates to wake up part of the UE, the terminal continues to detect the WUS on subsequent possible time-frequency resources; if the third cyclic shift of the m-sequence, i.e., no subsequent WUS transmission, is detected at WUS1, the subsequent WUS signal and its repeated slots will not be detected, thus avoiding WUS detection by the terminal for multiple basic time units.

The scrambling sequence is used as described above to indicate that the wake up area ID can be scrambled in the frequency domain, or in the time domain, preferably in the frequency domain. For example, the scrambling code sequence preferably is gold sequence for identifying 5G, which is regarded as 1008 cell IDs, and other sequences such as orthogonal sequence can identify only 30 cell IDs, which is similar to the frequency hopping sequence of PUCCH.

In addition, in the scheme, two WUs are time division multiplexed, for example, the WUS1 occupies 4 OFDM symbols, the WUS2 occupies 10 OFDM symbols, which is a basic structure of a WUS time domain, if a user moves to a cell edge, an eNB transmits WUs of a plurality of slots according to the basic structure, corresponding basic sequences of the WUs of the plurality of slots are consistent, namely, are repeatedly transmitted, a scrambling code sequence is not necessarily the repetition of the previous slot, so that the WUS of a second slot can be different from that of a first slot, and a terminal cannot detect the WUS in the first slot and can detect the WUS in combination with the second slot. The base station may select that the relative time domain resources occupied by the WUS1 and the WUS2 in each slot are fixed, or may change the time domain resources occupied by the WUS1 and the WUS2 in subsequent slots according to a predetermined convention or a signaling instruction, for example, the WUS1 occupies 3 OFDM symbols in the second slot, the WUS2 occupies 11 OFDM symbols in the third slot, the WUS1 occupies 2 OFDM symbols in the third slot, the WUS2 occupies 12 OFDM symbols, or the WUS1 in the second slot is not transmitting and is only used to transmit the WUS 2.

Scheme 2B:

in the scheme 2A, two WUSs are time division multiplexed, while in the scheme 2B, a frequency division multiplexing mode may be adopted, frequency domain resources occupied by each WUS are different, time domain resources are the same, and assuming that the WUS time domain occupies 14 OFDM symbols, as shown in fig. 5, some embodiments in the scheme and those in the scheme 2A may not be described herein again.

Example 2:

if considering that the connection state can support a larger number of terminals before the same DRX on, such as a hot spot area with dense crowds, and support a wake-up mechanism with more than 16 terminals, the implementation of the invention can adopt multi-level WUS to solve the problem of wake-up of a huge number of users.

Scheme 1:

this scheme is exemplified by a 3-level sequence, as shown in fig. 6, and fig. 6 shows an example of a multi-level sequence implementation.

In this example, the first-stage WUS is configured by 3-stage WUS signals, and the first-stage WUS is configured by scrambling the signal with the basis sequence 1, generating a time domain signal through modules such as subsequence generation and IFFT, and mapping the time domain signal onto a time domain resource corresponding to the WUS 1. The preferred base sequence 1 is the same as the previous one, and may adopt an m sequence with 3 cyclic shift values or only two cyclic shift values, if only two cyclic shift values exist, only indicating whether the WUS can wake up all users before the DRX on period, compared with three cyclic shifts, network overhead is saved, from the perspective of the UE, if no WUS is detected at the WUS position, at least the WUS of the whole slot needs to be detected, even the subsequent slot needs to continue to be detected blindly, which is not favorable for reducing power consumption. The scrambling sequence is also a gold sequence, a Kasami sequence or an orthogonal sequence, but from the scrambling point of view, ZC sequences of different roots and their cyclic shifts can also be used as the scrambling sequence point-by-point basis sequences, as long as the number of sequences is large and the mutual performance is good enough. The base sequences 2-M for generating other levels of WUS are preferably orthogonal sequences supporting multiple sequence superposition, but do not exclude other sequences such as cyclic shifts of ZC sequences of different roots, or Kasami or gold sequences. The basic sequence is firstly subjected to frequency domain superposition, then modules such as frequency domain scrambling, subsequence generation and IFFT are used for mapping to WUS of each level. In the above example, the time domain 14 OFDM symbols are divided into 3 parts, for example, WUS1 occupies 2 symbols, and WUS2 and WUS3 occupy 6 OFDM symbols, respectively, and since the time domain length becomes shorter, the size of the frequency domain resource can be increased accordingly, of course, the specific numbers in the above example are only used to illustrate the level of WUS and the occupation of the time domain resource, and other general situations are not excluded, for example, the WUS signal is more than 3 levels, and the proportion of the time domain resource occupied by each level of WUS is other situations. Three WUS lengths are not consistent, 2 different scrambling code lengths are needed, and the method I is as follows: generating scrambling code sequences with different lengths by using a long gold sequence, wherein the performance is lost, and the method II comprises the following steps: two completely different sequences are considered, such as a gold sequence, a Kasami sequence.

The base sequences of the second-level WUS and the third-level WUS are not simply repeated, may be completely different, or may be partially the same, and the correspondence between the base sequences of the multi-level WUS and the wake up ID is as follows:

alt.1: different WUs represent different UEs, and sequences at different levels respectively correspond to different terminals. M1 basic sequences corresponding to WUS2 support M1 users, M2 basic sequences corresponding to WUS3 support M2 users, the number of the supported users is M1+ M2 in total, for example, the basic sequence of WUS1 theoretically supports 256 users at most by using a 256-bit Hadamard sequence, while the basic sequence of WUS2 is truncated into 256 bits by using a length 257 ZC sequence, and the maximum number of the supported users is 256+ 256-512;

alt.2: the two sequences from WUS2 and WUS3 together indicate one UE, i.e., one combination of multilevel sequences indicates one wake up ID. The number of sequences supported by the M1 basic sequences corresponding to WUS2 and the M2 basic sequences corresponding to WUS2 is M1M 2, and the total number of corresponding users is M1M 2. Taking M1 ═ M2 ═ 256 as an example, the total number of supported users is 256 × < 256 > 2^16, so theoretically, all the UEs in the connected state can be supported.

Scheme 2:

the first level WUS in scenario 1 is used to indicate whether all users within the corresponding wake up area are awake. Note that the scenario of waking up all terminals with one sequence is not very common after all, so scheme 2 differs from scheme 1 in that removing the first WUS reduces WUS overhead and then using a special sequence combination of multi-level sequences indicates whether to wake up multiple users with one WUS, as shown in fig. 7. The basic sequence and the scrambling sequence are designed in the same way as in scheme 1.

In this scheme, whether all UEs within the corresponding wake-up area are awake at the current time is indicated by using a specific wake-up ID in the multilevel sequence, as in the framework shown in fig. 7, a special combination such as index [ 00 ] is given in WUS1 and WUS2 to indicate that all UEs are awake by one sequence, so that the behavior of the UEs needs to be detected twice, that is, the base sequence allocated to the UE under the determined wake-up area is detected as in embodiment 1, and that is, the base sequence with the special index such as index [ 00 ] is detected. In order to support more users in

schemes

1 and 2, the base sequence corresponding to each stage of WUS preferably needs to be selected from different cyclic shifts of orthogonal sequences such as Hadamard/wash sequences or ZC sequences.

Scheme 3:

the previous designs all surrounded the sequence that WUS is UE specific, the larger the number of users supported the better the design. If the number of users to be woken up in the same DRX on period is small and is less than or equal to 8 compared with the number of users through Wake up ID configuration, the power save signal architecture shown in fig. 7 can still be adopted, each level of the multi-level WUS is no longer an orthogonal sequence, and the basic sequence can be designed as a ZC sequence of a different root, or a cyclic shift or gold sequence of an m sequence, or a Kasami sequence; since these non-orthogonal sequences are not very sensitive to time-frequency offsets. Assuming that the length of ZC is N127, the cross-correlation of ZC sequences between different roots is 1/sqrt (N) 0.0887, and at most 4 users (4 × 0.0887 ═ 0.3549), and the two stages of WUS are differentiated by different roots for the first stage WUS and by different roots for the second stage, so that 16 users are also supported.

It should be noted that, in the above embodiments, the numbers are merely used for convenience of description, and are not limited, the above-described architecture and the illustrated sequences are also only examples, equivalent substitutions for the enumerated sequences are also within the protection scope, and in the last example, the method for indicating whether to wake up all the corresponding sequences is represented by a specific wake up ID, and may be applied in all embodiments.

In addition, a threshold value of correlation is generally set during multi-stage sequence detection, and if the correlation is higher than the threshold value, the target sequence is simply detected, otherwise, the detection is considered to be failed. If the sequence detection fails, the terminal allocates the maximum transmission time T for the WUS of the UE according to a preset rule_maxIn the corresponding candidate time position, several limited candidate time units are set, such as 1 slot,2 … T_maxAnd slot, the terminal performs merging detection on the WUS at the candidate positions. If the detection fails again, then no WUS signal is deemed to be present. Of course if the presence sequence indicates a subsequent absence of WUS, no subsequent candidate time is detected as described in example 1. The WUS can be transmitted at a plurality of candidate time, the WUS can be transmitted at a plurality of different candidate frequency resources in the same way, or a plurality of candidate positions formed by different time and frequency together, and if the detection of the initial position of the WUS fails, the terminal can jointly detect the WUS at a plurality of subsequent candidate positions until the WUS is detected or all candidate positions are detected.

It should be noted that, in each drawing provided in the embodiment of the present invention, only a time domain multiplexing structure is illustrated, and in each implementation manner provided in the embodiment of the present invention, frequency division multiplexing may be supported, for example: the multi-level signals all support frequency division multiplexing.

Referring to fig. 8, fig. 8 is a flowchart of an energy saving signal transmission method according to an embodiment of the present invention, as shown in fig. 8, including the following steps:

801. the method comprises the steps that network side equipment sends an energy-saving signal, wherein the energy-saving signal carries an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

It should be noted that, this embodiment is used as an implementation of the network side device corresponding to the embodiment shown in fig. 2, and specific implementation thereof may refer to the relevant description of the embodiment shown in fig. 2, so that, in order to avoid repeated description, the embodiment is not described again, and the same beneficial effects may also be achieved.

Referring to fig. 9, fig. 9 is a structural diagram of a terminal according to an embodiment of the present invention, and as shown in fig. 9, a terminal 900 includes:

a detecting module 901, configured to detect an energy saving signal, where the energy saving signal carries at least one of an energy saving identifier and an energy saving area identifier, where the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier;

a wake-up module 902, configured to enter a wake-up state if the terminal is located in the energy-saving region and the energy-saving signal indicates that the terminal needs to be woken up.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

Optionally, the detecting, by the terminal, the power saving signal includes:

It should be noted that, in this embodiment, the terminal 900 may be any implementation manner of the method embodiment in the present invention, and any implementation manner of the terminal in the method embodiment in the present invention may be implemented by the terminal 900 in this embodiment, and achieve the same beneficial effects, and details are not described here again.

Referring to fig. 10, fig. 10 is a structural diagram of a network side device according to an embodiment of the present invention, and as shown in fig. 10, the network side device 1000 includes:

a sending module 1001, configured to send an energy saving signal, where the energy saving signal carries an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

Referring to fig. 11, fig. 11 is a structural diagram of another terminal according to an embodiment of the present invention, and as shown in fig. 11, the terminal includes: a transceiver 1110, a memory 1120, a processor 1100, and a program stored on the memory 1120 and executable on the processor 1200, wherein:

the transceiver 1110 is configured to detect an energy saving signal, where the energy saving signal carries at least one of an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier;

alternatively, the first and second electrodes may be,

the processor 1100 is configured to: and if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, entering an awakening state.

The transceiver 1110 may be used for receiving and transmitting data, among other things, under the control of the processor 1100.

In FIG. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1100, and various circuits of memory, represented by memory 1120, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.

It should be noted that the memory 1120 is not limited to being on the terminal, and the memory 1120 and the processor 1100 may be separated in different geographical locations.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

Optionally, the detecting the power saving signal includes:

It should be noted that, in this embodiment, the terminal may be a terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the terminal in the method embodiment of the present invention may be implemented by the terminal in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.

Referring to fig. 12, fig. 12 is a structural diagram of another network-side device according to an embodiment of the present invention, and as shown in fig. 12, the network-side device includes: a transceiver 1210, a memory 1220, a processor 1200, and a program stored on the memory 1220 and executable on the processor, wherein:

the transceiver 1210 is configured to send an energy saving signal, where the energy saving signal carries an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier.

The transceiver 1210 may be used for receiving and transmitting data under the control of the processor 1200.

In fig. 12, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1200 and memory represented by memory 1220. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1210 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.

The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1200 in performing operations.

It should be noted that the memory 1220 is not limited to be on a network side device, and the memory 1220 and the processor 1200 may be separated and located in different geographical locations.

The energy-saving identification is an identification or a group identification of a terminal needing to be awakened in the energy-saving area.

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

whether to awaken all corresponding terminals in the energy-saving area; or

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

It should be noted that, in this embodiment, the network-side device may be a network-side device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the processing method of the information data block according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

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

Claims

1. A method for energy efficient signal transmission, comprising:

if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, the terminal enters an awakening state;

the energy-saving signal is an N-level energy-saving signal, wherein N is an integer greater than or equal to 1;

the N-level power saving signal comprises multi-level sequences, wherein single-level sequences carrying one or more basic sequences exist in the multi-level sequences, one basic sequence is used for representing one power saving identifier, or one basic sequence combination is used for indicating one power saving identifier, and the basic sequence combination is a combination sequence of a plurality of basic sequences belonging to different single-level sequences.

2. The method of claim 1, wherein the energy-saving identifier is an identifier or a group identifier of a terminal that needs to be woken up in the energy-saving area; and/or

The energy-saving signal carries a basic sequence and a scrambling sequence, wherein one basic sequence is used for representing an energy-saving identifier, and one scrambling sequence is used for representing an energy-saving area identifier.

3. The method of claim 1, wherein the N-level power saving signals are time division multiplexed or the N-level power saving signals are frequency division multiplexed if N is an integer greater than 1.

4. The method of claim 3, wherein the time domain resources occupied by the N-level power saving signals are integer multiples of a time slot if the N-level power saving signals are time division multiplexed; or

5. The method of claim 1, wherein each of the N stages of power save signals is characterized by:

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

6. The method of claim 1, wherein the level-N power save signal is at least used to indicate whether to wake up all corresponding terminals within the power save area.

7. The method of claim 6, wherein some of the N stages of power saving signals are indicated by different cyclic shifts of the same sequence as follows:

whether to awaken all corresponding terminals in the energy-saving area; or

8. The method of claim 6, wherein the N-level power saving signal comprises a multi-level sequence, one level of the multi-level sequence being used to indicate whether to wake up all corresponding terminals within the power saving region; or

9. The method of claim 1, wherein said level N power save signal carries a plurality of said power save flags.

10. The method of claim 9, wherein there is also a single-level sequence in the multi-level sequence for indicating whether to wake up all corresponding terminals within the power save region.

11. The method of claim 10, wherein the single-level sequence indicating whether to wake up all corresponding terminals within the power save region occupies a different size of time or frequency domain resources than the single-level sequence carrying the one or more base sequences; and/or

The time domain or frequency domain resources occupied by the plurality of single-level sequences carrying the base sequence are the same in size.

12. The method of claim 2, wherein the base sequence carried by the power-save signal comprises any one of:

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

13. The method of claim 12, wherein if the number of terminals that need to be woken up in the same period in the power saving region is in a first interval, the basic sequence carried by the power saving signal includes any one of:

orthogonal sequences, m-sequences, cyclic shifts of ZC sequences of the same root, cyclic shifts of ZC sequences of different roots;

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

14. The method of claim 1, wherein the terminal detecting a power save signal comprises:

15. A method for energy efficient signal transmission, comprising:

the method comprises the steps that network side equipment sends an energy-saving signal, wherein the energy-saving signal carries an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier;

16. The method of claim 15, wherein the energy-saving identifier is an identifier or a group identifier of a terminal that needs to be woken up in the energy-saving area; and/or

17. The method of claim 15, wherein if N is an integer greater than 1, the N-level power saving signals are time division multiplexed or the N-level power saving signals are frequency division multiplexed.

18. The method of claim 17, wherein the time domain resources occupied by the N-level power saving signals are integer multiples of a time slot if the N-level power saving signals are time division multiplexed; or

19. The method of claim 15, wherein each of the N stages of power save signals is characterized by:

one or more base sequence overlays;

mapping the at least one subsequence to a corresponding transmission resource;

one or more base sequence overlays;

segmenting the result after superposition to obtain at least one subsequence;

20. The method of claim 15, wherein the level-N power save signal is at least used to indicate whether to wake up all corresponding terminals within the power save area.

21. The method of claim 20, wherein some of the N-level power saving signals are indicated by different cyclic shifts of the same sequence as follows:

whether to awaken all corresponding terminals in the energy-saving area; or

22. The method of claim 20, wherein the N-level power saving signal comprises a multi-level sequence, one level of the multi-level sequence being used to indicate whether to wake up all corresponding terminals within the power saving region; or

23. The method of claim 15, wherein said N-level power save signal carries a plurality of said power save flags.

24. The method of claim 15, wherein there is also a single-level sequence in the multi-level sequence for indicating whether to wake up all corresponding terminals within the power save region.

25. The method of claim 24, wherein the single-level sequence indicating whether to wake up all corresponding terminals within the power save region occupies a different size of time or frequency domain resources than the single-level sequence carrying the one or more base sequences; and/or

26. The method of claim 16, wherein the base sequence carried by the power-save signal comprises any one of:

The scrambling sequence comprises any one of the following items:

gold sequence, orthogonal sequence, m sequence, Kasami sequence, ZC sequence.

27. The method of claim 26, wherein if the number of terminals that need to be woken up in the same period in the power saving region is in a first interval, the basic sequence carried by the power saving signal comprises any one of:

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

28. A terminal, comprising:

the awakening module is used for entering an awakening state if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened;

29. A network-side device, comprising:

the terminal comprises a sending module, a receiving module and a sending module, wherein the sending module is used for sending an energy-saving signal, the energy-saving signal carries an energy-saving identifier and an energy-saving area identifier, the energy-saving identifier corresponds to a terminal needing to be awakened in an energy-saving area, and the energy-saving area is an area indicated by the energy-saving area identifier;

30. A terminal, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to detect an energy saving signal, where the energy saving signal carries at least one of an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier; and the energy-saving control module is used for entering a wake-up state if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be woken up;

alternatively, the first and second electrodes may be,

the processor is configured to: if the terminal is located in the energy-saving area and the energy-saving signal indicates that the terminal needs to be awakened, entering an awakening state;

31. The terminal of claim 30, wherein the energy-saving identifier is an identifier or a group identifier of a terminal that needs to wake up in the energy-saving area; and/or

32. The terminal of claim 30, wherein the level-N power save signal is at least used to indicate whether to wake up all corresponding terminals in the power save area.

33. The terminal of claim 31, wherein if the number of terminals that need to wake up in the same period in the power saving region is in a first interval, the basic sequence carried by the power saving signal includes any one of:

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

34. A network-side device, comprising: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor,

the transceiver is configured to send an energy saving signal, where the energy saving signal carries an energy saving identifier and an energy saving area identifier, the energy saving identifier corresponds to a terminal that needs to be awakened in an energy saving area, and the energy saving area is an area indicated by the energy saving area identifier;

35. The network-side device of claim 34, wherein the energy-saving identifier is an identifier or a group identifier of a terminal that needs to be woken up in the energy-saving area; and/or

36. The network-side device of claim 34, wherein the level-N power-saving signal at least indicates whether to wake up all corresponding terminals in the power-saving region.

37. The network-side device of claim 35, wherein if the number of terminals that need to be woken up in the same period in the power saving region is in a first interval, the basic sequence carried by the power saving signal includes any one of:

cyclic shift of orthogonal sequence, m sequence, ZC sequence of same root;

and/or the scrambling code sequence comprises a gold sequence.

38. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps in the power saving signal transmission method as claimed in any one of claims 1 to 14, or which program, when being executed by a processor, carries out the steps in the power saving signal transmission method as claimed in any one of claims 15 to 27.