CN113163516A

CN113163516A - Signal transmission method and device

Info

Publication number: CN113163516A
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: 2021-07-23
Anticipated expiration: 2040-01-22
Also published as: CN113163516B; WO2021147560A1

Abstract

The application discloses a signal transmission method and a signal transmission device, which are used for fully utilizing useless DCI bits when an indication terminal is in sleep so as to improve the receiving quality and the link maintenance performance of the terminal. The application provides a signal transmission method, which comprises the following steps: determining an energy-saving signal needing to be sent; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping 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 application relates to the field of communications technologies, and in particular, to a signal transmission method and apparatus.

Background

In a New wireless (New Radio, NR) system of 5G, the current working states of a terminal (UE) are divided into three types: IDLE state (RRC _ IDLE), Inactive state (RRC _ Inactive), and Connected state (RRC _ Connected). Only the UE in RRC _ Connected is allowed to detect, for example, a Cell-Radio Network Temporary Identifier (C-RNTI) scrambled Physical Downlink Control Channel (PDCCH). Since power consumption of an NR terminal in RRC _ Connected mode (mode) has a decisive influence on system power consumption, NR release 16(Rel-16) standardizes power saving (power saving) for Connected UEs. In the RRC _ Connected state, the UE needs to continuously monitor a downlink control channel PDCCH (e.g., C-RNTI scrambling) to obtain the transmission information of the downlink PDSCH. While packet-based data streams are usually bursty, with data transmission for a period of time, but no data transmission for the next longer period of time, continuous monitoring of the PDCCH inevitably results in fast power consumption of the UE. Therefore, when there is no data transmission, the 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 a DRX (Discontinuous Reception) mechanism, as shown in fig. 1. During the DRX cycle, the UE monitors the PDCCH only during a reception On period (On duration), and during a discontinuous reception time (Opportunity for DRX), i.e., a DRX OFF period (DRX OFF), the UE does not receive the PDCCH to reduce power consumption, i.e., enter a sleep mode.

The NR Rel-16 introduces a group common (PDCCH) as an energy-saving signal before a DRX active period (DRX ON), the PDCCH is transmitted in the DRX OFF and is scrambled by a Power saving radio network temporary identifier (PS-RNTI), and only if the energy-saving signal carries a UE wake-up indication, the UE can wake up a receiver in the following DRX period, otherwise, the UE of the Rel-16 can continue to sleep. It should be noted that, in the energy saving signal based on the group common PDCCH transmitted by the RRC-connected mode in DRX OFF, the Downlink Control Information (DCI) format reuses the design of DCI format (format)2_ x (x is 0,1,2,3) in Rel-15, that is, the energy saving Information of each UE in the group is separated, each UE occupies one packet, the base station higher layer signaling notifies the start point of the UE packet and the length thereof, and a plurality of energy saving Information packets corresponding to a plurality of UEs are serially concatenated to form the entire DCI.

According to the Rel-16 standard, if the UE resolves the power saving signal before a DRX active cycle (DRX ON) cycle, the receiver is awakened to perform a PDCCH detection (monitoring) operation in the immediately following DRX cycle (cycle), and otherwise a sleep operation is performed in the subsequent 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 a Sounding Reference Signal (SRS), so that the UE cannot feed back link quality, cannot perform link adaptation ON an energy saving signal, cannot obtain uplink timing information even in an initial DRX ON period, and cannot perform fast uplink synchronization. The method of Rel-16 processing is to default that the UE does not perform CSI report and its SRS transmission during DRX OFF unless higher layer signaling configures the UE to perform CSI report and its SRS transmission during DRX OFF, but once higher layer signaling is so configured, it will cause the UE to wake up every DRX OFF cycle, which will result in a large loss of power saving performance. Meanwhile, the UE may be in a sleep state for a plurality of DRX cycles continuously, which may also have a destructive effect on the UE's receive beam accuracy and its RRM measurement link maintenance performance.

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 when an indication terminal is in sleep so as to improve the receiving quality and the link maintenance performance of the terminal.

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

determining an energy-saving signal needing to be sent; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping 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 needing to be sent is determined; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping 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 when the terminal is indicated to sleep, and improving the receiving quality and the link maintenance performance of the terminal.

Optionally, the power saving signal is sent in a discontinuous reception DRX deactivation cycle.

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 sends the beam information;

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a 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;

physical layer reference signal received power, RSRP, measurements;

and sending a 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-layer 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 used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping state and second energy-saving information corresponding to the second indication information;

and executing the energy-saving operation according to the energy-saving signal indication.

Optionally, the method further comprises:

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

Optionally, the performing of 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 awakening state, analyzing the first energy-saving information further according to configuration information of the first energy-saving information acquired in advance; and if the energy-saving signal carries second indication information for indicating the terminal to enter a sleep state, further analyzing the second energy-saving information according to configuration information of the second energy-saving information acquired in advance.

Optionally, the method further comprises:

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

a processor 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;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

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

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

a memory for storing program instructions;

On the network side, another signal transmission apparatus provided in the embodiments of the present application includes:

the determining unit is used for determining the energy-saving signal needing to be sent; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping state and second energy-saving information corresponding to the second indication information;

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

At a terminal side, another signal transmission apparatus provided in an embodiment of the present application includes:

a receiving unit for receiving an energy saving signal; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping state and second energy-saving information corresponding to the second indication information;

and the execution unit is used for executing the energy-saving operation according to the energy-saving signal indication.

Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used for storing program instructions, and the processor is used for calling the program instructions stored in the memory and executing any one of the above methods according to the obtained program.

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

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a DRX cycle (cycle) according to an embodiment of the present disclosure;

fig. 2 is a schematic flowchart of a signal transmission method on a network side according to an embodiment of the present disclosure;

fig. 3 is a schematic flowchart 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 apparatus on a network side according to an embodiment of the present application;

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

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

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

Detailed Description

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

The method and the device are based on the same application concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a universal microwave Access (WiMAX) system, a 5G NR system, and the like. These various systems include terminal devices and network devices.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, 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 Equipments (UEs). Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones) and computers with mobile terminal devices, e.g., mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, communicate with one or more core networks via the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells. A base station may also be referred to as an access point, or 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 configured to interconvert received air frames with 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 embodiment of the present application may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may also be an evolved network device (eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station in a 5G network architecture (next generation system), and may also be a home evolved node B (HeNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like, which are not limited in the embodiments of the present application.

Various embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the display sequence of the embodiment of the present application only represents the sequence of the embodiment, and does not represent the merits of the technical solutions provided by the embodiments.

A base station side:

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

s101, determining an energy-saving signal needing to be sent;

the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping state and second energy-saving information corresponding to the second indication information;

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

and S102, sending the energy-saving signal to a terminal.

The concrete description is as follows:

the following concepts are first defined:

active Time, i.e. DRX ON cycle, i.e. Active period;

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

The first power saving information or the second power saving information is 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, that is, energy saving information corresponding to a plurality of UEs is carried in one DCI, assuming that a first UE corresponds to 5-bit energy saving information, a second UE corresponds to 4-bit energy saving information, and a third UE corresponds to 6-bit energy saving information, the base station concatenates these 5, 4, and 6 bits in series to form the DCI. For each UE, the first bit of the power saving information is called a wake-up indicator, for example, a value of 1 indicates that the UE is awake in the 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 where the power saving signal is transmitted is within a deactivation period prior to each DRX cycle, i.e., DRX OFF of the previous DRX cycle. In R16, when the UE is instructed to sleep, the first bit, i.e. the wake-up indication, in the m bits of power saving information corresponding to the UE is 0, and the remaining m-1 bits are also zero (garbage bits), since the UE is instructed to sleep, the power saving information does not carry any power saving information except the wake-up indication. In the embodiment of the application, when the UE is indicated to be awake, the remaining m-1 bits represent the information of the Scell downlink (SCell sleep), and when the UE is indicated to be asleep, the remaining m-1 bits are used for indicating other information, so that the information becomes useful information.

Optionally, the base station may configure energy saving information for the UE by using a higher layer signaling, where the energy saving information includes first energy saving information and second energy saving information, where the first energy saving information includes energy saving information indicating that the UE is configured to wake up; the second energy saving information includes information carried when the UE is configured to sleep, that is, information carried by an energy saving signal except the sleep indication information, where the energy saving signal may be, for example, a PDCCH sent in a DRX OFF cycle, and when the UE is indicated to enter a sleep state, a corresponding DCI bit still exists, but is all zero in the current protocol, that is, only the sleep indication information is indicated to the sleep UE in the prior art, and other energy saving information is not carried, but in the embodiment of the present application, other energy saving information (i.e., the second energy saving information) is also carried by the DCI bit.

That is, the method further includes:

and the base station sends the configuration information of the first energy-saving information and/or the second energy-saving information through a high-level signaling. For example: and 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 and the energy-saving information type corresponding to the position for the UE through a high-level signaling. For example, when a base station configures the starting point, the length of the first energy saving information and/or the second energy saving information in the energy saving signal and the wake-up indication information are in the wake-up state for each UE by using RRC signaling in DRX ON, the type of energy saving information corresponding to m-1 bits later; in the configuration of the energy saving information for the UE by the base station using the RRC signaling, when the wakeup indication information is in the sleep state, the location and the type of the information carried in the remaining m-1 bits, for example: and m is 5, the beam information occupies 2 bits immediately after the wake-up indication information, the CSI-report indication information occupies one bit after the beam indication information, the sum of the wake-up indication information and the last bit is 4 bits, and no energy-saving information is allocated to the last bit. The above is merely an example and does not exclude other methods of arrangement. The base station must transmit the power saving signal through a physical layer power saving signal, for example, a physical layer PDCCH.

Optionally, the base station uses an energy saving signal (e.g. a physical layer energy saving signal or a channel (e.g. PDCCH)) to carry energy saving information, that is, first energy saving information, in the DRX OFF time, where the first energy saving information includes at least one of the following content-related information:

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

channel Tracking Reference Signal (TRS) transmission;

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 indication information or configuration information of the content.

Wherein, RSRP is Reference Signal Receive Power (Reference Signal Receive Power).

Optionally, the base station carries, in the DRX OFF time, configuration information when the UE is indicated to be asleep, that is, the second energy saving information, through an energy saving signal (e.g., a physical layer energy saving signal or a channel (e.g., PDCCH)).

Optionally, the UE is configured to carry information while sleeping, that is, the second energy saving information, including at least one of the following content-related information:

TRS sending;

CSI report；

L1-RSRP measurement；

SRS transmission;

The UE side:

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

s201, receiving an energy-saving signal;

and S202, executing energy-saving operation according to the energy-saving signal instruction.

Optionally, the method further comprises:

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

The UE firstly decodes an energy-saving signal (the energy-saving signal can be a sequence or a PDCCH channel, the decoded PDCCH is the decoded energy-saving signal, 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), and if the awakening indication information indicates that the UE is awakened, the UE analyzes the energy-saving information (namely first energy-saving information) corresponding to the awakening state according to the high-level indication; and if the awakening indication information indicates that the UE enters the sleep state, the UE analyzes the indication information (namely, the second energy-saving information) corresponding to the sleep state according to the high-level indication.

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

Specific examples of several embodiments are given below.

Example 1:

as described in the background section, Rel-16 currently standardizes a group common PDCCH-based power saving signal, which 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 awakening indication information, and the second part: secondary cell sleep (SCells dormancy) indication information. The UE awakening indication is composed of 1 bit, and the two states respectively represent whether the UE executes awakening operation or sleeping operation in the adjacent DRX cycle; the SCells downlink indication indicates that the UE performs PDCCH monitoring on those SCells after being awakened. Therefore, according to the current standard, when the UE is not awake, the first part of the corresponding information packet, for example, bit 0, indicates that the UE does not wake up in the subsequent DRX, and the second part of SCells downlink indication information must be all zero bits. Therefore, when the UE is instructed to sleep, the energy saving information packet corresponding to the UE is all zero bits, which, although not useful, must be sent as overhead. This undoubtedly results in a huge waste of DCI considering that the number of UEs that are simultaneously awakened by the power-saving signal is often small.

Therefore, 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 energy saving information for the UE by using a higher layer signaling, for example, a Radio Resource Control (RRC) signaling or a media access Control unit (MAC CE), and configures "energy saving information indicated as awake", that is, first energy saving information, for the UE, and/or configures "information carried when the UE is indicated to sleep", that is, second energy saving information, for the UE.

Accordingly, the behavior on the UE side:

the UE firstly decodes the energy-saving signal, and if the awakening indication information indicates that the UE is awakened, the UE corresponds to the energy-saving information according to the awakening state analyzed by the high-level indication; and if the awakening indication information indicates that the UE is in the sleep state, the UE corresponds to the 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 DCI is all zero or NULL when the UE sleeps.

Example 2:

as described in embodiment 1, the energy saving information group of the UE is preconfigured by the RRC signaling, and the base station may configure, for the base station, the energy saving information (i.e. the first energy saving information) when the UE is indicated to be awake, where of course, the awake 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 whose energy saving information indicates sleep, because when the UE is indicated by the energy saving signal to wake up, a DRX ON timer (timer) starts to start, and when the UE is indicated to sleep, the DRX ON timer in the DRX cycle configured by the UE does not start, so that when the UE is indicated to be in the sleep state, the information carried by the energy saving signal takes effect when the DRX ON timer does not start. The UE does not perform PDCCH monitoring operation when the DRX ON timer is not effective, and the UE cannot obtain transmission/reception beam update information. Because the beam update information in Rel-15 and Rel-16, i.e. the Transmission Configuration Information (TCI) state (state), is configured to the UE through RRC signaling in the connected state, and then updated through the MAC CE, the UE will be instructed by the power saving signal to enter the sleep state in the following DRX cycle when no data arrives, and the UE will not perform PDCCH detection in the sleep state, i.e. the inactive Time (Active Time), and the base station cannot transmit the beam information updated by the MAC CE. When the UE is instructed to be in the sleep state for a plurality of DRX cycles, the transmission beam information and/or the reception beam information cannot be updated. Because the energy-saving signal is for a group of UEs, some UEs in the group are in a sleep state, some UEs in an awake state, the UE in the awake state may have been instructed by the base station to update the transmission beam information or the reception beam information, and the UE in the sleep state cannot receive the beam update information, when the base station has data to transmit to the UE, the UE cannot correctly receive the energy-saving signal transmitted by using the updated beam with a high probability. The beam information may optionally refer to a transmission beam of a control resource set (CORESET), and the base station notifies the UE of the configured CORESET transmission beam, so that the terminal can receive and transmit signals by using the corresponding reception beam. In the Rel-16 energy-saving signal design, although even if a plurality of transmission opportunities are configured for a UE, each transmission opportunity corresponds to one core set, currently, at most three core sets are configured for one UE, and one core set sometimes needs to be configured to be dedicated to a beam failure recovery (beam failure recovery) process and cannot be configured for an energy-saving signal; therefore, the base station needs to update the transmit beam of the core set corresponding to the energy-saving signal frequently in the Active time, and the UE in the sleep state cannot receive the beam update. Optionally, when the UE is configured with DRX, the base station is configured through RRC signaling, and when the UE is indicated to be asleep 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 viewed from the base station, and the receive beam is viewed from the terminal). The base station utilizes the physical layer energy saving signal to instruct the UE to perform the UE sleep operation while carrying the transmission and/or reception beam information, which may include transmission 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 may 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 a page (paging) within DRX OFF may be utilized. The energy-saving signal can trigger CSI-RS report during the sleep period of the UE, and the UE can conduct CSI-report when the DRX ON timer is not started so as to be beneficial to the channel condition of a base station or the energy-saving signal, thereby conducting link self-adaptation ON the energy-saving signal. The power saving signal may trigger a periodic L1-RSRP measurement during the UE sleep, and the UE may perform the RRM measurement procedure with a periodic L1-RSRP measurement when the DRX ON timer is not activated. The energy-saving signal can trigger SRS sending during the sleep period of the UE, and the UE can send the SRS signal when the DRX ON timer is not started, thereby being beneficial to the uplink synchronization information of the base station or the UE. In a word, the base station indicates that the UE can carry the link maintenance message when performing the sleep operation, and fully utilizes the energy saving signal.

The scheme provided by the embodiment of the present application does not exclude that the base station carries one or a combination of the following content related information in the energy saving signal when indicating that the UE is awakened: the UE receives beam information or base station sends beam information, TRS sends, CSI report, L1-RSRP measurement and SRS sends. The content-related information may be the content itself, or may be indication information or configuration information of the content.

Example 3:

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

The UE firstly decodes the energy-saving signal, and if the awakening indication information indicates that the UE is awakened, the UE analyzes energy-saving information corresponding to the awakening state according to the high-level indication; and if the awakening indication information indicates that the UE is in sleep, the UE analyzes the indication information corresponding to the sleep state according to the high-level indication.

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

To sum up, in the embodiment of the present application, the base station configures energy saving information for the UE by using a high layer signaling, and configures energy saving information indicated as wake-up for the UE and information carried when the UE is indicated to sleep for the UE, so that the purpose of improving reception quality and maintaining a link can be achieved by fully using useless DCI bits when the Rel-16 energy saving signal indicates that the UE is asleep.

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

the processor 500, which is used to read the program in the memory 520, executes the following processes:

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

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

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

the 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.

Where in fig. 4, 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 500 and memory represented by memory 520. 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 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 (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).

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

the processor 600, which is used to read the program in the memory 620, executes the following processes:

receiving, by the transceiver 610, the power save signal; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping state and second energy-saving information corresponding to the second indication information;

Optionally, the processor 600 is further configured to call the program instruction 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, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 600, and various circuits of memory, represented by memory 620, 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 610 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. For different user devices, the user interface 630 may also be an interface capable of interfacing with a desired device externally, 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), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device).

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

a determining unit 11, configured to determine an energy saving signal to be sent; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping state and second energy-saving information corresponding to the second indication information;

a sending unit 12, configured to send the energy saving signal to a terminal.

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

Optionally, the sending unit 12 is further configured to:

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

a receiving unit 21 for receiving a power saving signal; the energy-saving signal comprises first indication information used for indicating the terminal to enter an awakening state and first energy-saving information corresponding to the first indication information, or the energy-saving signal comprises second indication information used for indicating the terminal to enter a sleeping 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 the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. 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.

The embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central 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 (LCD), a 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 for storing a program of any one of the methods provided by the embodiments of the present application.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained program instructions by calling the program instructions stored in the memory.

Embodiments of the present application provide a computer storage medium for storing computer program instructions for 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 memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

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

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

A network device may be a base station (e.g., 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 interconvert received air frames and 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 management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in 5G system. The embodiments of the present application are not limited.

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

As will be appreciated by one skilled in the art, 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, 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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

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

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

Claims

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

and sending the energy-saving signal to a terminal.

2. The method of claim 1, wherein the power saving signal is transmitted during a Discontinuous Reception (DRX) deactivation cycle.

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

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

4. The method according to claim 1, wherein the second energy saving information specifically comprises one or a combination of the following information:

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

5. The method of claim 1, further comprising:

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

7. The method of claim 6, further comprising:

8. The method of claim 6, wherein performing power saving operation according to the power saving signal indication specifically comprises:

9. The method of claim 6, further comprising:

10. A signal transmission apparatus, comprising:

a memory for storing program instructions;

and sending the energy-saving signal to a terminal.

11. The apparatus of claim 10, wherein the power saving signal is transmitted during a Discontinuous Reception (DRX) deactivation cycle.

12. The apparatus according to claim 10, wherein the first energy saving information specifically includes one or a combination of the following information:

transmitting a channel tracking reference signal;

reporting channel state information;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

13. The apparatus according to claim 10, wherein 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;

physical layer reference signal received power, RSRP, measurements;

and sending a sounding reference signal.

14. The apparatus of claim 10, wherein the processor is further configured to call program instructions stored in the memory to perform, in accordance with the obtained program:

15. A signal transmission apparatus, comprising:

a memory for storing program instructions;

16. The apparatus of claim 15, wherein the processor is further configured to call program instructions stored in the memory to perform, in accordance with the obtained program:

17. The apparatus of claim 15, wherein performing power saving operation according to the power saving signal indication specifically comprises:

18. The apparatus of claim 15, wherein the processor is further configured to call program instructions stored in the memory to perform, in accordance with the obtained program:

19. A signal transmission apparatus, comprising:

20. A signal transmission apparatus, comprising:

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