CN113163516B

CN113163516B - Signal transmission method and device

Info

Publication number: CN113163516B
Application number: CN202010074190.7A
Authority: CN
Inventors: 王加庆; 杨美英; 罗晨; 郑方政
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-01-22
Filing date: 2020-01-22
Publication date: 2024-02-09
Anticipated expiration: 2040-01-22
Also published as: WO2021147560A1; CN113163516A

Abstract

The application discloses a signal transmission method and a signal transmission device, which are used for fully utilizing useless DCI bits for indicating a terminal to sleep, so as to improve the receiving quality and the link maintenance performance of the terminal. The signal transmission method provided by the application comprises the following steps: determining an energy-saving signal to be transmitted; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information; and sending the energy-saving signal to a terminal.

Description

Signal transmission method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a signal transmission method and apparatus.

Background

In a New wireless (NR) system of 5G, the current working states of a terminal (UE) are divided into three types: IDLE state (rrc_idle), inactive state (rrc_active), and Connected state (rrc_connected). Only UEs in rrc_connected allow detection of physical downlink control channels (Physical Downlink Control Channel, PDCCH) scrambled by e.g. Cell-radio network temporary identity (Cell-Radio Network Temporary Identifier, C-RNTI). Since the power consumption of the NR terminal in rrc_connected mode (mode) has a determining effect on the system power consumption, NR version 16 (Rel-16) standardizes UE power saving (power saving) in a Connected state. In the rrc_connected state, the UE needs to continuously monitor the downlink control channel PDCCH (e.g., C-RNTI scrambling) to learn the transmission information of the downlink PDSCH. Whereas packet-based data streams are typically bursty, with data transmission for a period of time, but no data transmission for a longer period of time next, continuous monitoring of the PDCCH necessarily results in rapid power consumption by the UE. Therefore, when there is no data transmission, power consumption can be reduced by stopping receiving the PDCCH (at this time, stopping PDCCH blind detection). Therefore, the 3GPP is designed to achieve the power saving purpose through the DRX (Discontinuous Reception ) mechanism, as shown in fig. 1. During the DRX cycle, the UE monitors the PDCCH only during the On period (On duration), and during the discontinuous reception time (Opportunity for DRX), i.e., the DRX deactivation period (DRX OFF), the UE does not receive the PDCCH to reduce power consumption, i.e., to enter a sleep mode.

NR Rel-16 introduces a group common based PDCCH as a Power-save signal before the DRX activation period (DRXON), the PDCCH is transmitted in DRX OFF and scrambled with a Power save radio network temporary identifier (PS-RNTI), only if the Power-save signal carries a UE wake-up indication, the UE will wake up the receiver in the following DRX period, otherwise the UE of Rel-16 will continue to sleep. It should be noted that, for the group common PDCCH-based power saving signal transmitted by the RRC-connected mode in DRX OFF, the downlink control information (Downlink Control Information, DCI) format is reused for the design of DCI format (format) 2_x (x=0, 1,2, 3) in Rel-15, that is, the power saving information of each UE in the group is separated, each UE power saving information occupies one packet, the base station higher layer signaling informs the start point and the length of the UE packet, and multiple power saving information packets corresponding to multiple UEs are serially concatenated to form the whole DCI.

According to the Rel-16 standard, if the UE decodes the power saving signal before the DRX active cycle (DRX ON) cycle, the receiver is woken up to perform a PDCCH detection (monitoring) operation in the following DRX cycle (cycle), otherwise a sleep operation is performed in the following DRX cycle. However, if there is no data transmission for a plurality of DRX cycles, the UE cannot perform Channel State Information (CSI) reporting (report) and transmit Sounding Reference Signals (SRS), which results in that the UE cannot feed back link quality, cannot perform link adaptation ON the power saving signal, cannot obtain uplink timing information at the initial stage of DRX ON, and cannot perform fast uplink synchronization. The Rel-16 processing method is that the default UE does not execute CSI report and SRS transmission thereof in DRX OFF unless the higher layer signaling configures the UE to execute CSI report and SRS transmission thereof in DRX OFF, but once the higher layer signaling is configured as such, the UE will wake up in every DRX OFF period, which will greatly lose power saving performance. Meanwhile, the UE is in a sleep state continuously for a plurality of DRX cycles, which may have a destructive effect on the accuracy of the reception beam of the UE and the RRM measurement link maintenance performance thereof.

Disclosure of Invention

The embodiment of the application provides a signal transmission method and a signal transmission device, which are used for fully utilizing useless DCI bits for indicating the sleep of a terminal, thereby improving the receiving quality and the link maintenance performance of the terminal.

At a network side, for example, at a base station side, a signal transmission method provided in an embodiment of the present application includes:

determining an energy-saving signal to be transmitted; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

and sending the energy-saving signal to a terminal.

By the method, the energy-saving signal to be transmitted is determined; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information; and sending the energy-saving signal to the terminal, thereby fully utilizing useless DCI bits for indicating the sleep of the terminal and improving the receiving quality and the link maintenance performance of the terminal.

Optionally, the power saving signal is transmitted during a discontinuous reception, DRX, deactivation period.

Optionally, the first energy saving information specifically includes one or a combination of the following information:

the terminal receives the beam information or the base station transmits the beam information;

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

Optionally, the second energy saving information specifically includes one or a combination of the following information:

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

Optionally, the method further comprises:

and sending the configuration information of the first energy saving information and/or the second energy saving information through high-level signaling.

Correspondingly, on the terminal side, the signal transmission method provided by the embodiment of the application comprises the following steps:

receiving an energy-saving signal; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

And executing energy-saving operation according to the energy-saving signal instruction.

Optionally, the method further comprises:

and acquiring configuration information of the first energy saving information and/or the second energy saving information through high-layer signaling.

Optionally, executing the energy saving operation according to the energy saving signal instruction specifically includes:

if the energy-saving signal carries first indication information for indicating the terminal to enter an awake state, analyzing the first energy-saving information further according to the pre-acquired configuration information of the first energy-saving information; if the energy-saving signal carries second indication information for indicating the terminal to enter a sleep state, analyzing the second energy-saving information further according to the pre-acquired configuration information of the second energy-saving information.

Optionally, the method further comprises:

and when the first energy saving information or the second energy saving information carries beam indication information, updating a receiving beam according to the beam indication information.

On the network side, a signal transmission device provided in an embodiment of the present application includes:

a memory for storing program instructions;

and the processor is used for calling the program instructions stored in the memory and executing according to the obtained program:

and sending the energy-saving signal to a terminal.

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

Optionally, the processor is further configured to call program instructions stored in the memory, and execute according to the obtained program:

On the terminal side, a signal transmission device provided in an embodiment of the present application includes:

a memory for storing program instructions;

On the network side, another signal transmission device provided in the embodiment of the present application includes:

a determining unit, configured to determine an energy-saving signal to be transmitted; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

and the transmitting unit is used for transmitting the energy-saving signal to the terminal.

On the terminal side, another signal transmission device provided in the embodiment of the present application includes:

a receiving unit for receiving the energy-saving signal; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

And the execution unit is used for executing energy-saving operation according to the energy-saving signal instruction.

Another embodiment of the present application provides a computing device including a memory for storing program instructions and a processor for invoking the program instructions stored in the memory to perform any of the methods described above in accordance with the obtained program.

Another embodiment of the present application provides a computer storage medium storing computer-executable instructions for causing the computer to perform any one of the methods described above.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a DRX cycle (cycle) provided in an embodiment of the present application;

fig. 2 is a flow chart of a signal transmission method at a network side according to an embodiment of the present application;

Fig. 3 is a flow chart of a signal transmission method at a terminal side according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a signal transmission device at a network side according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a signal transmission device at a terminal side according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another signal transmission device at the network side according to the embodiment of the present application;

fig. 7 is a schematic structural diagram of another signal transmission device at the terminal side according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G NR, and the like. Terminal devices and network devices are included in these various systems.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connection functionality, or other processing device connected to a wireless modem. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more core networks via the RAN, and may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in, or vehicle-mounted mobile devices that exchange voice and/or data with the radio access network. Such as personal communication services (personal communication service, PCS) phones, cordless phones, session initiation protocol (session initiated protocol, SIP) phones, wireless local loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells. A base station may also be referred to as an access point, or may refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be operable to inter-convert the received air frames with internet protocol (internet protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communications, GSM) or code division multiple access (code division multiple access, CDMA), a network device (NodeB) in a wideband code division multiple access (wide-band code division multiple access, WCDMA), an evolved network device (evolutional node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station in a 5G network architecture (next generation system), a home evolved base station (home evolved node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like.

Various embodiments of the present application are described in detail below with reference to the drawings attached hereto. It should be noted that, the display sequence of the embodiments of the present application only represents the sequence of the embodiments, and does not represent the advantages or disadvantages of the technical solutions provided by the embodiments.

Base station side:

referring to fig. 2, at a network side, for example, at a base station side, a signal transmission method provided in an embodiment of the present application includes:

s101, determining an energy-saving signal to be transmitted;

the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

that is, in this embodiment of the present application, the energy saving signal includes indication information for indicating that the terminal enters a sleep or wake-up state, and energy saving information corresponding to the indication information, where when the indication information is the indication information for indicating that the terminal enters the wake-up state, the energy saving information corresponding to the indication information includes first energy saving information configured when the terminal is in the wake-up state; when the indication information is used for indicating the terminal to enter a sleep state, the energy-saving information corresponding to the indication information comprises second energy-saving information configured when the terminal is in the sleep state;

S102, the energy-saving signal is sent to the terminal.

The concrete explanation is as follows:

first, the following concepts are clarified:

active Time, namely DRX ON period, namely activation period;

outside Active Time, namely the DRX OFF duration, is also referred to as the deactivation period.

Both the first power saving information and the second power saving information are transmitted during the DRX OFF, i.e., deactivation, period. Except that the R16 power saving signal is standardized, one DCI based on the UE group, i.e. the corresponding energy saving information of multiple UEs is carried in one DCI, and it is assumed that the first UE corresponds to 5 bits of energy saving information, the second UE corresponds to 4 bits of energy saving information, the third UE corresponds to 6 bits of energy saving information, and the base station concatenates these 5, 4 and 6 bits serially together to form the DCI. For each UE, the first bit of the power saving information is called a wake-up indication, e.g. a value of 1 indicates that the UE is woken up in a subsequent DRX cycle, and a value of 0 indicates that the UE does not wake up the receiver to sleep in the subsequent DRX cycle. The location of transmitting the power saving signal is within a deactivation period before each DRX cycle, i.e., the DRX OFF of the previous DRX cycle. When the UE is indicated to sleep in R16, the first bit, i.e. wake-up indication, in the m bits of energy-saving information corresponding to the UE is 0, and the remaining m-1 bits are also zero (garbage bits), so that the energy-saving information does not carry any energy-saving information except the wake-up indication since the UE is indicated to sleep. In the embodiment of the application, when the UE is indicated to wake up, the remaining m-1 bits represent Scell dormmiry (secondary cell sleep) information, and when the UE is indicated to sleep, the remaining m-1 bits are used to indicate other information, so that the information becomes useful information.

Optionally, the base station may configure energy saving information for the UE by using high-layer signaling, including first energy saving information and second energy saving information, where the first energy saving information includes energy saving information when configured for the UE to be indicated as awake; the second energy saving information includes information carried when the UE is instructed to sleep, that is, information carried by an energy saving signal except for sleep indication information, where the energy saving signal may be, for example, a PDCCH sent in a DRX OFF period, and when the UE is instructed to enter a sleep state, a corresponding DCI bit still exists, but the current protocol is all zeros, that is, only the sleep indication information is indicated for the sleeping UE in the prior art, and other energy saving information is not carried, and in the embodiment of the present application, other energy saving information (that is, the second energy saving information described above) is also carried through the DCI bit.

That is, the method further comprises:

and the base station sends the configuration information of the first energy saving information and/or the second energy saving information through high-layer signaling. For example: the base station configures the position of the first energy saving information and/or the second energy saving information in the group common energy saving signal for the UE through high-layer signaling and the corresponding energy saving information type. For example, when the base station configures the starting point, the length and the wake-up indication information of the first energy saving information and/or the second energy saving information in the energy saving signal for each UE in DRX ON by utilizing RRC signaling, the type of the energy saving information corresponding to m-1 bits at the back is in a wake-up state; the base station configures the location and type of the information carried in the remaining m-1 bits in the energy-saving information for the UE by using RRC signaling when the wake-up indication information is in the sleep state, for example: m=5, the beam information occupies 2 bits immediately after the wake-up indication information, and the CSI-report indication information occupies one bit after the beam indication information, and the wake-up indication information is added by 4 bits, and the last bit is not allocated with energy saving information. The foregoing is merely illustrative and does not exclude other configuration methods. The base station must transmit a power save signal through a physical layer power save signal, for example, through a physical layer PDCCH.

Optionally, the base station carries, during the DRX OFF time, energy saving information, i.e. first energy saving information, using an energy saving signal (e.g. a physical layer energy saving signal or a channel (e.g. PDCCH)), where the first energy saving information includes at least one of the following related information:

the UE receives the beam information or the base station transmits the beam information;

a channel Tracking Reference Signal (TRS) is transmitted;

channel state information reporting (CSI report);

physical layer RSRP measurement (L1-RSRP measurement);

sounding Reference Signal (SRS) transmission;

the content-related information may be the content itself, or may be instruction information or configuration information of the content.

Wherein RSRP is the reference signal received power (Reference Signal Receive Power).

Optionally, the base station carries configuration information when the UE is instructed to sleep, i.e. the second energy saving information described above, through an energy saving signal (e.g. a physical layer energy saving signal or a channel (e.g. PDCCH)) during the DRX OFF time.

Optionally, the information carried by the UE during sleep, namely the second energy saving information, includes at least one of the following related information:

TRS sending;

CSI report；

L1-RSRP measurement；

SRS transmission;

UE side:

referring to fig. 3, on a terminal side, a signal transmission method provided in an embodiment of the present application includes:

s201, receiving an energy-saving signal;

s202, executing energy-saving operation according to the energy-saving signal instruction.

Optionally, the method further comprises:

Optionally, performing the power saving operation according to the power saving signal indication includes, for example: if the energy-saving signal carries first indication information for indicating the terminal to enter an awake state, the first energy-saving information is further analyzed; if the energy-saving signal carries second indication information for indicating the terminal to enter a sleep state, the second energy-saving information is further analyzed. That is, if the UE detects a power saving signal and wakes up, the receiver is waken up to perform a PDCCH monitoring operation in a subsequent DRX cycle; otherwise, the UE continues to keep the sleep state in the subsequent DRX period, and does not execute the PDCCH monitoring operation.

The UE decodes the energy-saving signal (the energy-saving signal can be a sequence or a PDCCH channel, the decoding PDCCH is used for decoding the energy-saving signal, the information carried by the energy-saving signal is called energy-saving information, DCI is analyzed from the PDCCH, namely the energy-saving information is analyzed), if the wake-up indication information indicates the UE to wake up, the UE analyzes the energy-saving information (namely the first energy-saving information) corresponding to the wake-up state according to the high-level indication; if the wake-up indication information indicates the UE to enter a sleep state, the UE analyzes indication information (namely second energy-saving information) corresponding to the sleep state according to the higher-layer indication.

If the energy saving information (the first energy saving information may be the first energy saving information or the second energy saving information) carries beam indication information, the UE updates the received beam according to the transmission beam indication information carried by the energy saving signal in subsequent signal or channel reception.

The energy saving information (may be the first energy saving information or the second energy saving information) may further carry a TRS instruction.

Specific examples of several embodiments are given below.

Example 1:

as described in the foregoing background section, rel-16 is currently standardized for a group common PDCCH-based power saving signal that carries a serial concatenation of multiple UE power saving information packets. The information packet for each UE in the Rel-16 standard consists of two parts, the first part: UE wake-up indication information, second part: secondary cell sleep (SCells dormancy) indication information. Wherein the UE wake-up indication is composed of 1 bit, and the two states respectively indicate whether the UE executes wake-up operation or sleep operation in the adjacent DRX cycle; the SCells dormamry indication indicates that the UE performs PDCCH monitoring operations on those SCells after being woken up. So, in the present standard, when the UE is not woken up, the first part of the corresponding information packet is, for example, bit 0, which indicates that the UE is not woken up in the subsequent DRX, and the second part SCells dormmiry indicates that the information must be all zero bits. Therefore, when a UE is instructed to sleep, the UE's corresponding power saving information packet is all zero bits, which, although not useful at all, must be transmitted as overhead. Considering that the number of UEs simultaneously awakened by the power saving signal tends to be small, this certainly results in a huge waste of DCI.

Thus, in the embodiment of the present application, the base station may further utilize the energy saving information, although the UE is indicated as a sleep state. The base station configures the UE with energy saving information, i.e., first energy saving information, for the UE to be "indicated as energy saving information at wake-up" and/or configures the UE with information carried when the UE is indicated as sleep ", i.e., second energy saving information, using higher layer signaling, e.g., radio resource control (Radio Resource Control, RRC) signaling or a medium access control unit (MAC CE).

Accordingly, the behavior of the UE side:

the UE decodes the energy-saving signal firstly, and if the wake-up indication information indicates that the UE is wake-up, the UE corresponds to the energy-saving information according to the wake-up state analyzed by the high-level indication; if the wake-up indication information indicates that the UE is in sleep, the UE corresponds to energy-saving information according to the sleep state analyzed by the high-level indication.

If the base station does not configure "information carried when the UE is instructed to sleep" for the UE, the default state is that the corresponding information bit packet in the energy-saving signal DCI is all zero or NULL when the UE sleeps.

Example 2:

as described in embodiment 1, the energy saving information of the UE is pre-configured by RRC signaling, and the base station may configure the base station with the energy saving information (i.e., the first energy saving information) when the UE is indicated to wake up, where the wake up indication itself is a part of the energy saving information; the base station also configures other indication information (namely second energy-saving information) for the UE, the UE is indicated to be asleep by the energy-saving signal, because the DRX ON timer (timer) starts to be started when the UE is indicated to be awake, and the DRX ON timer in the DRX cycle configured by the UE is not started when the UE is indicated to be asleep, the information carried by the energy-saving signal takes effect when the DRX ON timer is not started when the UE is indicated to be in a sleep state. The UE does not perform the PDCCH monitoring operation when the DRX ON timer is not active, and the UE cannot obtain the transmit/receive beam update information. Because the beam update information in Rel-15 and Rel-16, namely the transmission configuration information (transmission configuration information, TCI) state (state), is configured to the UE through RRC signaling and then updated through the MAC CE in the connected state, but when no data arrives, the UE is indicated by the power saving signal to enter the sleep state in the following DRX cycle, and the UE does not perform PDCCH detection in the sleep state, namely in the inactive Time (Active Time), and the base station cannot transmit the beam information updated by the MAC CE. When a plurality of DRX cycles are continued, the UE is instructed to be in a sleep state, the transmission beam information and/or the reception beam information cannot be updated. Since the power saving signal is directed to a group of UEs, wherein some UEs in the group are in a sleep state, some UEs in an awake state may have been instructed by the base station to update the transmit beam information or receive the beam information, and the UEs in the sleep state cannot receive the beam update information, when the base station has data to transmit to the UEs, the UEs cannot correctly receive the power saving signal transmitted by the updated beam. The beam information, optionally, refers to a transmission beam of the control resource set (control resource set, CORESET), the base station informs the UE of the configured CORESET transmission beam, and the terminal can receive the transmission signal by using the corresponding reception beam. In the Rel-16 power saving signal design, even though a plurality of transmission opportunities are configured for the UE, each transmission opportunity corresponds to one CORESET, at present, one UE is configured with at most three CORESETs, and also one CORESET needs to be configured to be dedicated to a beam failure recovery (beam failure recovery) process sometimes, and cannot be configured to the power saving signal; therefore, the base station needs to frequently update the transmission beam of CORESET corresponding to the energy-saving signal in the Active time, and the UE in the sleep state cannot receive the beam update. Alternatively, when the UE is configured with DRX, the base station is configured through RRC signaling, and when the UE is indicated to sleep by the power saving signal, the corresponding power saving information packet includes a start position and a size of transmit/receive beam information configured for the UE (the transmit beam is from the base station perspective and the receive beam is from the terminal perspective). The base station uses the physical layer energy-saving signal to carry transmitting and/or receiving beam information while instructing the UE to perform a UE sleep operation, where the transmitting and/or receiving beam information may include transmitting beam information corresponding to one or more CORESETs configured by the base station for the energy-saving signal.

When the energy-saving signal indicates that the UE is in a sleep state, the energy-saving signal can also carry TRS, CSI report, L1-RSRP measurement and SRS information. The power save signal triggers TRS (Tracking RS) during UE sleep, e.g., a fine synchronization procedure before the UE receives paging (paging) in DRX OFF may be utilized. The power saving signal can trigger the CSI-RS report during the sleep period of the UE, and the UE can perform the CSI-report when the DRX ON timer is not started, so that the channel condition of the base station or the power saving signal is facilitated, and the link adaptation is performed ON the power saving signal. The power saving signal may trigger a periodic L1-RSRP measurement during sleep of the UE, and the UE may perform an RRM measurement procedure with the periodic L1-RSRP measurement when the DRX ON timer is not started. The energy-saving signal can trigger SRS transmission during the sleep period of the UE, and the UE can transmit the SRS signal when the DRX ON timer is not started, so that the uplink synchronization information of the base station or the UE is facilitated. In short, the base station indicates that the UE can carry the link maintenance message when performing the sleep operation, and makes full use of the energy-saving signal.

The solution provided in the embodiment of the present application does not exclude that the base station carries one or a combination of the following related information in the power saving signal when the UE is instructed to wake up: the UE receives beam information or base station transmits beam information, TRS transmission, CSI report, L1-RSRP measurement and SRS transmission. The content-related information may be the content itself, or may be instruction information or configuration information of the content.

Example 3:

and the UE receives the energy-saving signal and executes energy-saving operation according to the energy-saving signal instruction.

The UE decodes the energy-saving signal firstly, if the wake-up indication information indicates that the UE is wake-up, the UE analyzes the energy-saving information corresponding to the wake-up state according to the high-level indication; if the wake-up indication information indicates that the UE is asleep, the UE analyzes the indication information corresponding to the sleep state according to the high-level indication.

If the wake-up indication information indicates that the UE carries beam indication information in the energy-saving information corresponding to sleep, the receiving beam is updated according to the new sending beam carried by the energy-saving signal in subsequent signal/channel receiving. If the UE energy saving information also carries TRS or CSI report or L1-RSRP measurement or SRS sending indication/configuration information, the UE receives a TRS signal or periodic CSI report or periodic L1-RSRP measurement or periodic SRS signal according to the indication of the energy saving signal in a DRX period which is not started by a subsequent DRX ON timer.

In summary, in the embodiment of the present application, the base station configures the UE with the energy-saving information by using the higher layer signaling, and configures the UE with the energy-saving information when the UE is instructed to wake up, and configures the UE with the information carried when the UE is instructed to sleep, so that the Rel-16 energy-saving signal can be fully utilized to instruct the UE of useless DCI bits when the UE is asleep, thereby achieving the purposes of improving the reception quality and maintaining the link.

Referring to fig. 4, on a network side, a signal transmission apparatus provided in an embodiment of the present application includes:

the processor 500, configured to read the program in the memory 520, performs the following procedures:

the power saving signal is transmitted to the terminal through the transceiver 510.

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

Transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

Optionally, the processor 500 is further configured to call the program instructions stored in the memory, and execute according to the obtained program:

configuration information of the first energy saving information and/or the second energy saving information is transmitted by a transceiver 510 through higher layer signaling.

A transceiver 510 for receiving and transmitting data under the control of the processor 500.

Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 500 and various circuits of memory represented by memory 520, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

The processor 500 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD).

Referring to fig. 5, on a terminal side, a signal transmission device provided in an embodiment of the present application includes:

the processor 600, configured to read the program in the memory 620, performs the following procedures:

receiving the power saving signal through the transceiver 610; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

Optionally, the processor 600 is further configured to call the program instructions stored in the memory, and execute according to the obtained program:

A transceiver 610 for receiving and transmitting data under the control of the processor 600.

Wherein in fig. 5, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 600 and various circuits of memory represented by memory 620, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 610 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 630 may also be an interface capable of interfacing with an inscribed desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 in performing operations.

Alternatively, the processor 600 may be a CPU (Central processing Unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable Gate array), or CPLD (Complex Programmable Logic Device ).

Referring to fig. 6, at a network side, another signal transmission apparatus provided in an embodiment of the present application includes:

a determining unit 11, configured to determine an energy-saving signal to be transmitted; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

a transmitting unit 12, configured to transmit the energy saving signal to a terminal.

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

Optionally, the sending unit 12 is further configured to:

Referring to fig. 7, at a terminal side, another signal transmission apparatus provided in an embodiment of the present application includes:

a receiving unit 21 for receiving the energy saving signal; the energy-saving signal comprises first indication information for indicating the terminal to enter a wake-up state and first energy-saving information corresponding to the first indication information, or comprises second indication information for indicating the terminal to enter a sleep state and second energy-saving information corresponding to the second indication information;

And an execution unit 22 for executing the energy saving operation according to the energy saving signal instruction.

Optionally, the receiving unit 21 is further configured to:

Optionally, the execution unit 22 is further configured to:

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Embodiments of the present application provide a computing device, which may be specifically a desktop computer, a portable computer, a smart phone, a tablet computer, a personal digital assistant (Personal Digital Assistant, PDA), and the like. The computing device may include a central processing unit (Center Processing Unit, CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a display device, such as a liquid crystal display (Liquid Crystal Display, LCD), cathode Ray Tube (CRT), etc.

The memory may include Read Only Memory (ROM) and Random Access Memory (RAM) and provides the processor with program instructions and data stored in the memory. In the embodiments of the present application, the memory may be used to store a program of any of the methods provided in the embodiments of the present application.

The processor is configured to execute any of the methods provided in the embodiments of the present application according to the obtained program instructions by calling the program instructions stored in the memory.

The present embodiments provide a computer storage medium storing computer program instructions for use with an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.

The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), etc.

The method provided by the embodiment of the application can be applied to the terminal equipment and also can be applied to the network equipment.

The Terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (RAN), or the like, and may optionally be capable of communicating with one or more core networks via a radio access network (Radio Access Network, RAN), for example, the Terminal may be a Mobile phone (or "cellular" phone), or a computer with Mobile properties, or the like, for example, the Terminal may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.

The network device may be a base station (e.g., an access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to inter-convert the received air frames with IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate attribute management for the air interface. For example, the base station may be a base station (BTS, base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, or a gNB in a 5G system, etc. The embodiments of the present application are not limited.

The above-described method process flow may be implemented in a software program, which may be stored in a storage medium, and which performs the above-described method steps when the stored software program is called.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

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 flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A method of signal transmission, the method comprising:

determining an energy-saving signal which needs to be transmitted and is based on a Physical Downlink Control Channel (PDCCH); the energy-saving signal comprises at least one first indication information for indicating each terminal in one terminal group to enter a wake-up state respectively, and first energy-saving information corresponding to each first indication information respectively, or the energy-saving signal comprises at least one second indication information for indicating each terminal in one terminal group to enter a sleep state respectively, and second energy-saving information corresponding to each second indication information respectively;

transmitting the energy-saving signal to a terminal in a Discontinuous Reception (DRX) deactivation period;

the second energy-saving information comprises information for indicating the terminal to perform communication configuration, and specifically comprises one or a combination of the following information: the terminal receives the beam information or the base station transmits the beam information; transmitting a channel tracking reference signal; reporting channel state information; the physical layer reference signal received power, RSRP, measurement; and sending the sounding reference signal.

2. The method of claim 1, wherein the first energy saving information comprises one or a combination of the following information:

transmitting a channel tracking reference signal;

reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

3. The method according to claim 1, wherein the method further comprises:

4. A method of signal transmission, the method comprising:

receiving a PDCCH-based power saving signal during a DRX deactivation period; the energy-saving signal comprises at least one first indication information for indicating each terminal in one terminal group to enter a wake-up state respectively, and first energy-saving information corresponding to each first indication information respectively, or the energy-saving signal comprises at least one second indication information for indicating each terminal in one terminal group to enter a sleep state respectively, and second energy-saving information corresponding to each second indication information respectively;

executing energy-saving operation according to the energy-saving signal indication;

5. The method according to claim 4, wherein the method further comprises:

6. The method of claim 4, wherein performing a power saving operation in accordance with the power saving signal indication comprises:

7. The method according to claim 4, wherein the method further comprises:

8. A signal transmission device, comprising:

a memory for storing program instructions;

Determining a PDCCH-based energy-saving signal to be transmitted; the energy-saving signal comprises at least one first indication information for indicating each terminal in one terminal group to enter a wake-up state respectively, and first energy-saving information corresponding to each first indication information respectively, or the energy-saving signal comprises at least one second indication information for indicating each terminal in one terminal group to enter a sleep state respectively, and second energy-saving information corresponding to each second indication information respectively;

transmitting the energy-saving signal to the terminal in the DRX deactivation period;

9. The apparatus of claim 8, wherein the first energy saving information comprises one or a combination of:

transmitting a channel tracking reference signal;

Reporting channel state information;

the physical layer reference signal received power, RSRP, measurement;

and sending the sounding reference signal.

10. The apparatus of claim 8, wherein the processor is further configured to invoke program instructions stored in the memory to perform according to the obtained program:

11. A signal transmission device, comprising:

a memory for storing program instructions;

12. The apparatus of claim 11, wherein the processor is further configured to invoke program instructions stored in the memory to perform according to the obtained program:

13. The apparatus of claim 11, wherein performing the power saving operation in accordance with the power saving signal indication comprises:

14. The apparatus of claim 11, wherein the processor is further configured to invoke program instructions stored in the memory to perform according to the obtained program:

15. A signal transmission device, comprising:

a determining unit, configured to determine a PDCCH-based power saving signal that needs to be transmitted; the energy-saving signal comprises at least one first indication information for indicating each terminal in one terminal group to enter a wake-up state respectively, and first energy-saving information corresponding to each first indication information respectively, or the energy-saving signal comprises second indication information for indicating each terminal in one terminal group to enter a sleep state respectively, and second energy-saving information corresponding to each second indication information respectively;

a transmitting unit, configured to transmit the power saving signal to a terminal in a DRX deactivation cycle;

16. A signal transmission device, comprising:

a receiving unit for receiving a PDCCH-based power saving signal during a DRX deactivation period; the energy-saving signal comprises at least one first indication information for indicating each terminal in one terminal group to enter a wake-up state respectively, and first energy-saving information corresponding to each first indication information respectively, or the energy-saving signal comprises at least one second indication information for indicating each terminal in one terminal group to enter a sleep state respectively, and second energy-saving information corresponding to each second indication information respectively;

an execution unit for executing energy-saving operation according to the energy-saving signal instruction;

17. A computer storage medium having stored thereon computer executable instructions for causing the computer to perform the method of any one of claims 1 to 7.