CN118055514A

CN118055514A - Message receiving method and device and terminal equipment

Info

Publication number: CN118055514A
Application number: CN202211389509.0A
Authority: CN
Inventors: 杨坤; 林志鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2024-05-17

Abstract

The application discloses a message receiving method, a device and terminal equipment, belonging to the technical field of communication, wherein the message receiving method of the embodiment of the application comprises the following steps: when the terminal equipment performs the random access process, a monitoring window corresponding to the PRACH time-frequency resource can be determined first; the time-frequency resource comprises at least two time-frequency resource units, and each time-frequency resource unit is used for transmitting a first message; and then opening the monitoring window according to a preset rule, monitoring downlink control information scrambled by the random access identifier in the monitoring window, and receiving a second message.

Description

Message receiving method and device and terminal equipment

Technical Field

The present application belongs to the technical field of communications, and in particular, relates to a message receiving method, a device and a terminal device.

Background

Under the condition of limited network coverage, there may be multiple Synchronization signals and PBCH blocks (SSBs) with similar quality, and the terminal only selects one SSB to perform Random access, while in the related technology, for example, in the four-step Random access procedure of Rel-15, the Physical Random access channel (Physical Random ACCESS CHANNEL, PRACH) is single transmission, and in the coverage limited scenario, for example, the cell edge or shadow fading area, the reception success rate of the PRACH often cannot reach the system requirement (1% omission ratio), which results in low Random access success rate of the terminal in the coverage limited scenario and difficult access to the cell.

Disclosure of Invention

The embodiment of the application provides a message receiving method, a message receiving device and terminal equipment, which can improve the success rate of random access.

In a first aspect, a message receiving method is provided, including:

the terminal equipment determines a monitoring window corresponding to the time-frequency resource; the time-frequency resource comprises at least two time-frequency resource units, and each time-frequency resource unit is used for transmitting a first message;

The terminal equipment starts the monitoring window according to a preset rule;

And the terminal equipment monitors the downlink control information scrambled by the random access identifier in the monitoring window and receives a second message.

In a second aspect, there is provided a message receiving apparatus comprising:

The monitoring window determining module is used for determining a monitoring window corresponding to the time-frequency resource; the time-frequency resource comprises at least two time-frequency resource units, and each time-frequency resource unit is used for transmitting a first message;

the monitoring window opening module is used for opening the monitoring window according to a preset rule by the terminal equipment;

And the message receiving module is used for monitoring the downlink control information scrambled by the random access identifier in the monitoring window by the terminal equipment and receiving a second message.

In a third aspect, there is provided a terminal device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the message receiving method as described in the first aspect.

In a fourth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the message receiving method according to the first aspect.

In a fifth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to execute a program or instructions to implement the message receiving method according to the first aspect.

In a sixth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the message receiving method as described in the first aspect.

In the embodiment of the application, when the terminal equipment performs the random access process, a monitoring window corresponding to the time-frequency resource can be determined first; the time-frequency resource comprises at least two time-frequency resource units, and each time-frequency resource unit is used for transmitting a first message; and then opening the monitoring window according to a preset rule, monitoring downlink control information scrambled by the random access identifier in the monitoring window, and receiving a second message. In the embodiment of the application, the terminal equipment can send the first message for multiple times by utilizing a plurality of time-frequency resource units, and starts the monitoring window at different moments according to the preset rule to support the multiple transmission advanced beam-receiving function of the PRACH, thereby reducing the delay of PRACH transmission, improving the receiving success rate of the PRACH and being beneficial to improving the random access success rate of the terminal equipment.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a flow chart of a message receiving method in an embodiment of the application;

FIG. 3 is a schematic diagram of a configuration of a monitoring window in an embodiment of the present application;

FIG. 4 is a schematic diagram of another configuration of a monitoring window in an embodiment of the present application;

FIG. 5 is an overlapping schematic view of a monitoring window in an embodiment of the present application;

fig. 6 is a block diagram of a message receiving apparatus in an embodiment of the present application;

Fig. 7 is a block diagram of a communication device in an embodiment of the application;

fig. 8 is a block diagram of a terminal device in an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as6 th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal device 11 and a network device 12. The terminal device 11 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side device called a notebook, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a Mobile internet appliance (Mobile INTERNET DEVICE, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home device with a wireless communication function, such as a refrigerator, a television, a washing machine, a furniture, etc.), a game machine, a Personal Computer (Personal Computer, a PC), a teller machine, a self-service machine, etc., and the wearable device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal device 11 is not limited in the embodiment of the present application. The network-side device 12 may include an access network device or a core network device, where the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network element. Access network device 12 may include a base station, a WLAN access Point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access Point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a home node B, a home evolved node B, a transmission and reception Point (TRANSMITTING RECEIVING Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility MANAGEMENT ENTITY, MME), access Mobility management functions (ACCESS AND Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and Charging Rules Function (PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified DATA MANAGEMENT, UDM), unified data warehousing (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

NR Rel-15 defines the flow of four-step random access. Specifically, after the terminal device completes downlink Synchronization, checking signal quality of a Synchronization signal and a PBCH block (SSB), and selecting an appropriate SSB according to a threshold value configured by a network side device, for example, RSRP-ThresholdSSB, that is, if there is an SSB signal with a received Power (SS-RSRP) higher than the threshold value, using the SSB signal as a target reference signal meeting a condition; if a plurality of SSB signals exist to meet the condition, selecting one of the SSB signals as a target reference signal; if there is no SSB signal satisfying the condition, one SSB signal is selected from the SSB signal ensemble as the target reference signal. After determining the target reference signal, the terminal equipment determines an RO resource set and a preamble (preamble) resource set associated with the target reference signal according to the association relation between the SSB and random access channel opportunity (RACH occision, RO); the terminal device randomly selects one RO resource and one preamble resource in the resource set, and sends a first message (Msg 1).

Next, the terminal device receives the second message (Msg 2) and determines scheduling information of the base station. Specifically, the terminal monitors DCI 1-0 scrambled by Random Access-RNTI (RA-RNTI) in a Random Access response monitoring window (Random Access Response window, RAR window) to obtain Msg2. Wherein, the RAR window is a first orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol corresponding to a control resource SET (Control RE source SET, CORESET) of the first Type1-PDCCH after Msg1 transmission, and the window length is configured in the system message, and generally, the window length does not exceed 10ms. The Msg2 reception requires that the SSB associated with Msg1 meet a Quasi Co-Location (QCL) assumption, i.e. the transmit beam of Msg2 is the same as the SSB beam.

The RA-RNTI is calculated in the following way:

RA-RNTI＝1+s_id+14×t_id+14×80×f_id+14×80×8×ul_carrier_id

where s_id is the first OFDM symbol id occupied by Msg1, t_id is the slot id occupied by Msg1, f_id is the RO resource id of the frequency domain multiplexing occupied by Msg1, and ul_carrier_id corresponds to the carrier id of Msg1 (NUL is 0, sul is 1).

After receiving the Msg2, the terminal equipment checks that the random access preamble identifier (Random Access Preamble Identity, RAPID) passes, obtains temporary cell RNTI (Temporary Cell RNTI, TC-RNTI), determines a third message (Msg 3) transmission parameter according to RAR information contained in the Msg2, and sends the Msg3. Finally, a fourth message (Msg 4) is monitored, and whether random access is successful or not is judged.

It should be noted that, in the four-step Random access procedure of Rel-15, the Physical Random access channel (Physical Random ACCESS CHANNEL, PRACH) is single transmission, and in a coverage limited scenario, for example, a cell edge or a shadow fading area, the reception success rate of the PRACH often does not reach the system requirement (1% omission ratio), which results in low Random access success rate of the terminal in the coverage limited scenario and difficult access to the cell.

The embodiment of the application provides a message receiving method, which is characterized in that terminal equipment can utilize a plurality of time-frequency resource units to send a first message for a plurality of times in a Random access process, and open a monitoring window at different moments according to a preset rule to support a plurality of times of transmission advanced beam-grafting function of a Physical Random access channel (Physical Random ACCESS CHANNEL, PRACH), thereby reducing the delay of PRACH transmission, improving the receiving success rate of PRACH, and further improving the Random access success rate of the terminal equipment.

The message receiving method provided by the embodiment of the application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

In a first aspect, referring to fig. 2, a flowchart of a message receiving method provided by an embodiment of the present application is shown. The method is applied to the terminal equipment, as shown in fig. 2, and specifically the method can include:

step 201, the terminal equipment determines a monitoring window corresponding to the time-frequency resource; the time-frequency resource comprises at least two time-frequency resource units, and each time-frequency resource unit is used for transmitting a first message.

Step 202, the terminal device opens the monitoring window according to a preset rule.

Step 203, the terminal device monitors the downlink control information scrambled by the random access identifier in the monitoring window, and receives a second message.

It should be noted that the terminal device may be the terminal device 11 in fig. 1, and the embodiments of the present application are not described herein.

In the embodiment of the application, after the first message (Msg 1) is sent in the process of random access of the terminal equipment, a monitoring window corresponding to the time-frequency resource can be determined. Wherein the first message is for transmitting a preamble (preamble). The time-frequency resource comprises at least two time-frequency resource units. The time-frequency resource unit may be an RO resource, one time-frequency resource unit being used for transmitting a first message. The monitoring window may be a RAR window for listening for a random access identity to obtain the second message (Msg 2). The second message may be a random access response message sent by the network side device.

It may be understood that, in the embodiment of the present application, multiple time-frequency resource units may be associated with the same RAR window, and the terminal device may open each RAR window at different times according to a preset rule.

After the RAR window is opened, the terminal device may monitor the downlink control information scrambled by the random access identifier in one or more RAR windows, and receive the second message.

Optionally, before the terminal device determines the monitoring window corresponding to the time-frequency resource, the method further includes:

step S11, the terminal equipment selects N time-frequency resource units from a time-frequency resource set according to the transmission times of the first message; the transmission times of the first message are N, and N is a positive integer greater than 1.

In the embodiment of the application, the terminal equipment can determine the time-frequency resource used for transmitting the first message according to the transmission times of the first message. Specifically, assuming that the number of times of transmission of the first message is N, where N is a positive integer greater than 1, the terminal device may select N time-frequency resource units from the time-frequency resource set as time-frequency resources for transmitting the first message, where one time-frequency resource unit is used for transmitting the first message once.

It should be noted that, the number of transmissions of the first message may be set by the network side device, indicated by the system message, or specified by the protocol, or may be determined by the terminal device itself. As an example, the system message broadcasted by the system carries a threshold value for indicating the transmission times of the first message, and the terminal device determines the transmission times of the first message according to the relationship between the signal quality of the target SSB and the threshold value. For example, a signal quality of the target SSB higher than the threshold value 1 corresponds to the number of transmissions N1; a value below the threshold value 1 and a value above the threshold value 2 corresponds to the number of transmissions N2; a value below the threshold value 2 corresponds to the number of transmissions N3. Or the terminal device may directly use the value indicated in the message sent by the network side device, such as the radio resource control (Radio Resource Control, RRC) message, as the number of transmissions of the first message. Or the terminal equipment firstly determines the transmission times and the random access result of the first message in the random access process, and then determines the transmission times of the first message in the random access process according to the transmission times and the random access result of the first message in the random access process. For example, if the random access result of the previous random access procedure is an access failure, or the first message transmission power of the previous random access procedure reaches the upper limit of the terminal transmission power, the number of transmissions of the first message may be increased based on the previous random access procedure.

After determining the number of transmissions of the first message, the terminal device may determine the number of time-frequency resource units to be selected.

Wherein the set of time-frequency resources comprises at least one of the following time-frequency resources:

a1, time-frequency resources of a random access channel corresponding to the four-step random access flow;

A2, time-frequency resources of a random access channel corresponding to the two-step random access flow;

A3, supporting time-frequency resources of a random access channel corresponding to the four-step random access flow of the repeated transmission of the third message;

a4, supporting the time-frequency resource of the random access channel corresponding to the four-step random access flow of the repeated transmission of the first message.

In the embodiment of the present application, the time-frequency resource set may include at least one time-frequency resource of A1 to A4, and the N time-frequency resource units selected from the time-frequency resource set may be a combination of time-frequency resource units corresponding to any one or more time-frequency resources of A1 to A4.

The time-frequency resources are indicated by a protocol specification or a system message in step 201. In other words, the combination manner of the N time-frequency resource units selected from the time-frequency resource set of the terminal device may be specified by a protocol or indicated by a system message.

When the terminal device sends the first message for multiple times, the first message may be repeatedly transmitted through a single beam, or may be sequentially transmitted through a plurality of different beams.

The terminal equipment determines a transmission mode of the first message according to a third configuration message or protocol rule; the third configuration message is used for indicating a transmission mode of the first message, or the third configuration message is used for indicating a preset condition corresponding to the transmission mode of the first message; the transmission mode includes: the terminal device transmits the first message through a single beam or the terminal device transmits the first message through at least two beams.

The specific transmission mode adopted by the terminal device to transmit the first message can be determined according to a third configuration message or a protocol rule, wherein the third configuration message can be a system message, or can be an RRC message sent by the network side device, and the like. The third configuration message may explicitly indicate the transmission mode of the first message, or may implicitly indicate, for example, a preset condition corresponding to the transmission mode of the first message.

As an example, the third configuration message carries a first threshold value, and the terminal device determines a transmission mode of the first message according to the third configuration message, including: the terminal equipment determines the signal quality of a downlink reference signal; if the signal quality of the downlink reference signal is greater than the first threshold value, the terminal equipment transmits a first message through a single wave beam; and if the signal quality of the downlink reference signal is smaller than the first threshold value, the terminal equipment transmits a first message through at least two beams.

As another example, the terminal device may also determine the transmission mode of the first message according to a transmission rule of the first message specified by the protocol. The terminal device obtains transmission rules of the first message specified by the protocol; if the first message meets the transmission rule, the terminal equipment transmits the first message through a single wave beam; and if the first message does not meet the transmission rule, the terminal equipment transmits the first message through at least two beams. The transmission rule may be a rule corresponding to the number of transmissions of the first message, for example, if the number of transmissions of the first message is smaller than a preset threshold, the first message is transmitted through a single beam, otherwise, if the number of transmissions of the first message is greater than or equal to the preset threshold, the first message is transmitted through at least two beams. The transmission rule may also be a terminal capability of the terminal device, for example, if the terminal capability of the terminal device meets a preset condition, the first message is transmitted through a single beam, otherwise, if the terminal capability of the terminal device does not meet the preset condition, the first message is transmitted through at least two beams, and so on. Wherein the terminal capability of the terminal device is the number of beams supported by the terminal for the first message.

In an alternative embodiment of the present application, the terminal device transmits the first message through a single beam; the step S11 of selecting, by the terminal device, N time-frequency resource units from the time-frequency resource set according to the number of transmissions of the first message includes: and the terminal equipment selects N time-frequency resource units corresponding to the downlink reference signals from the time-frequency resource set according to the association relation between the time-frequency resources and the downlink reference signals.

When the terminal device transmits the first message through a single wave beam, the terminal device can select N time-frequency resource units corresponding to the downlink reference signal from the time-frequency resource set according to the association relationship between the time-frequency resource and the downlink reference signal so as to transmit the first message for N times.

The downlink reference signal may be an SSB signal, or a channel state Information-reference signal (CHANNEL STATE Information-REFERENCE SIGNAL, CSI-RS) indicated by the terminal device through an RRC message.

Taking the downlink reference signal as an SSB signal as an example, the terminal device may select, according to signal quality of each SSB signal, such as SS-RSRP, a target SSB signal as the downlink reference signal in the embodiment of the present application, so as to select a time-frequency resource unit associated with the target SSB channel as a time-frequency resource unit used for transmitting the first message in the present application. In particular, the terminal device may select the target SSB signal according to a threshold value configured by the network side device, such as RSRP-ThresholdSSB. For example, if the SS-RSRP of an SSB signal is higher than the threshold value configured by the network side device, the SSB signal is used as the target SSB signal meeting the condition; if a plurality of SSB signals exist to meet the condition, selecting one of the SSB signals as a target SSB signal; if there is no SSB signal satisfying the condition, one SSB signal is selected from the SSB signal ensemble as the target SSB signal. After the target SSB signal is determined, N RO resources associated with the target SSB signal are selected from the time-frequency resource set according to the association relation between the SSB signal and the RO resources so as to transmit N times of first messages.

In an optional embodiment of the present application, determining, by the terminal device, a monitoring window corresponding to the time-frequency resource in step 202 includes: the terminal equipment configures a monitoring window according to the first configuration message; the first configuration message is used for indicating the number of monitoring windows or the number of first messages corresponding to each monitoring window.

In the scenario where the terminal device transmits the first message via a single beam, the terminal device may configure the monitoring window according to the first configuration message of the system. The first configuration message may explicitly or implicitly indicate the number of monitoring windows.

As an example, the first configuration message carries a first indication, where the first indication is used to indicate that the monitoring window supports a threshold of transmission times of the first message; the terminal device configures a monitoring window according to a first configuration message, and the method comprises the following steps: the terminal equipment determines M monitoring windows according to the transmission times of the first message and the first indication, wherein the M monitoring windows are used for supporting N times of transmission of the first message, and the transmission times of the first message corresponding to each monitoring window are not more than the transmission times threshold.

In the embodiment of the present application, the first configuration message may be a system message or an RRC message sent by the network side device. The first configuration message may carry a first indication, where the first indication is used for the monitoring window to support a threshold of transmission times of the first message, for example, the first indication may indicate that the monitoring window may continuously transmit the first message a times at most, or the first indication may indicate that the first message corresponds to the same monitoring window at most every a times of transmission. The terminal device determines M monitoring windows according to the number of transmissions of the first message and the first indication,

Referring to fig. 3, a schematic configuration diagram of a monitoring window according to an embodiment of the present application is shown. As shown in fig. 3, each transmission of the first message corresponds to one RO resource, assuming that the threshold number of transmission times of the RAR window is 2, each 2 consecutive transmissions of the first message corresponds to the same RAR window, for example, the 1 st transmission and the 2 nd transmission correspond to the first RAR window, the 3 rd transmission and the 4 th transmission correspond to the second RAR window, and so on, until the first message is transmitted N times. It can be understood that the number of transmissions of the first message corresponding to each monitoring window is not greater than the threshold number of transmissions. For the last monitoring window, the number of times of transmission of the corresponding first message is not necessarily equal to the transmission number threshold a, for example, in fig. 3, assuming that the number of times of transmission of the first message n=9, a total of 5 monitoring windows are required, the number of times of transmission corresponding to the first 4 monitoring windows is 2, and the number of times of transmission corresponding to the last monitoring window is 1.

As another example, the first configuration message carries a second indication, where the second indication is used to indicate a transmission period of a physical downlink control channel; the terminal device configures a monitoring window according to a first configuration message, and the method comprises the following steps: and the terminal equipment configures a monitoring window according to the transmission times of the first message and the second instruction so that the time-frequency resource in the transmission period of the physical downlink control channel corresponds to the same monitoring window.

The first configuration message may also carry a second indication indicating a transmission period of the PDCCH, for example, a period of PDCCH TYPE a 1. The terminal device may configure a monitoring window according to the number of transmissions of the first message and the second indication, where the time-frequency resource included in the transmission period of the PDCCH corresponds to the same monitoring window. Taking the transmission period of PDCCH, e.g. PDCCH TYPE a period of PDCCH TYPE a, as an example, RO resources present between two adjacent PDCCH TYPE a transmissions correspond to the same RAR window.

Referring to fig. 4, a schematic configuration diagram of another monitoring window according to an embodiment of the present application is shown. As shown in fig. 4, the 1 st transmission of the first message and the 2 nd corresponding RO resource correspond to the same RAR window, i.e., the first RAR window in fig. 4. The 3 rd transmission and the 4 th corresponding RO resource transmission occur between the 2 nd and 3 rd PDCCH TYPE th transmissions and thus correspond to the same RAR window, i.e. the second RAR window in fig. 4. And so on until the first message is sent N times.

After the terminal device configures the corresponding monitoring windows for the N time-frequency resource units of the first message for transmission, the monitoring windows can be opened according to a preset rule. Optionally, the terminal device opens the monitoring window according to a preset rule, including: the terminal equipment starts the monitoring window according to a preset period; the time-frequency resources in the preset period correspond to the same monitoring window.

Wherein the preset period includes any one of the following:

b1, a period specified by a protocol;

b2, configuring a period of the second configuration message;

b3, the window length of the monitoring window;

and B4, the association period or the association pattern period of the synchronous signals and the physical broadcast channel blocks corresponding to the four-step random access flow and the time-frequency resources of the random access channel.

In the scenario that the terminal device transmits the first message through a single beam, the terminal device may open the monitoring window according to a preset period. The preset period may be specified by a protocol (for example, 10 ms), or may be a period configured by a second configuration message, where the second configuration message may be a system message, or may be an RRC message sent by a network side device. The preset period may also be a window length of a monitoring window, or a management period or an association pattern period corresponding to the SSB-RO in the four-step random access procedure. Wherein, the association period starts from frame #0 to perform SSB-RO association, and the minimum period satisfying the condition in the candidate association period is the association period, and the condition to be satisfied is that each SSB completes association with RO at least once in the association period. The candidate association period is related to the PRACH resource allocation period as shown in table 1 below.

TABLE 1

PRACH configuration period (millisecond)	Association cycle (PRACH configuration cycle number)
		10	{1,2,4,8,16}
20	{1,2,4,8}
		40	{1,2,4}
80	{1,2}
		160	{1}

The association pattern period comprises a plurality of association periods and is no longer than 160 milliseconds in length.

The terminal device may implement opening each monitoring window at different times according to the preset period of any one of the above B1 to B4, so that the terminal device may detect the PDCCH scrambled by the random access identifier and receive the second message in the monitoring window at different times, thereby implementing a function of receiving the first message in advance for multiple transmissions, and being beneficial to reducing the transmission delay of the PRACH.

Optionally, the starting point of the preset period includes any one of the following:

C1, presetting a wireless frame;

C2, a first time-frequency resource unit in the N time-frequency resource units;

and C3, the starting point of the association period or the association pattern period of the synchronous signal and the physical broadcast channel block corresponding to the four-step random access flow and the time-frequency resource of the random access channel.

The preset radio frame may be a specific radio frame, for example, radio frame 0, which is determined by the terminal device, or specified by a protocol, or indicated by a system message.

In another alternative embodiment of the application, the terminal device transmits the first message via at least two beams; the step S11 of selecting, by the terminal device, N time-frequency resource units from the time-frequency resource set according to the number of transmissions of the first message includes:

step S111, the terminal equipment determines the transmission times of the first message corresponding to each wave beam according to the transmission times of the first message and the number of wave beams;

And step S112, the terminal equipment determines a time-frequency resource unit associated with each wave beam from the time-frequency resource set according to the transmission times of the first message corresponding to each wave beam.

When the terminal device transmits the first message through the plurality of beams, the terminal device may determine the transmission times of the first message corresponding to each beam according to the transmission times of the first message and the number of beams, and then determine the time-frequency resource unit associated with each beam from the time-frequency resource set according to the transmission times of the first message corresponding to each beam. Wherein the at least two beams may be at least two narrow beams.

The number of transmissions of the first message is illustratively N, and assuming that the terminal device transmits the first message through K beams, where K is a positive integer greater than 1, the number of transmissions of the first message corresponding to each beam is n=n/K. In the embodiment of the application, one time-frequency resource unit is used for transmitting a first message, so that the number of time-frequency resource units associated with each beam is N/K.

It should be noted that, the number K of beams may be predefined by a protocol, may be preconfigured by a network side device, or may be determined according to terminal capabilities of a terminal device.

Optionally, among N time-frequency resource units corresponding to K beams for transmitting the first message, adjacent and consecutive N/K time-frequency resource units are associated with the same beam; or starting from the first time-frequency resource unit, K adjacent and consecutive time-frequency resource units are sequentially associated with K beams.

Optionally, when the terminal device transmits the first message through at least two beams, the beams are in one-to-one correspondence with the preamble. In other words, when the terminal device transmits the first message through the plurality of beams, the preambles used by each beam are different from each other, that is, the first message transmitted by each beam corresponds to a different RAPID.

In an optional embodiment of the present application, after the terminal device monitors the downlink control information scrambled by the random access identifier in the monitoring window and receives the second message, the method further includes:

Step S21, a target beam is determined according to the random access preamble identifier corresponding to the second message received by the terminal equipment;

step S31, the terminal equipment sends a third message through the target beam.

The terminal device determines a corresponding beam for transmitting the first message according to the RAPID, the second message corresponds to the first message, and the terminal device can determine a target beam according to the received RAPID, and then send a third message by using the target beam. The third message may be an RRC connection request message.

In the embodiment of the application, the terminal equipment determines the target beam for transmitting the third message according to the RAPID corresponding to the received second message, so that the flexibility of third message scheduling is improved, and the problem of congestion of third message scheduling can be avoided.

When the terminal device transmits the first message through at least two beams, one monitoring window can be configured for each beam, the monitoring windows can be configured according to the association period of the beams and the time-frequency resources, and the same monitoring window can be configured for all beams.

As an example, the determining, by the terminal device in step 201, a monitoring window corresponding to the time-frequency resource includes: the terminal equipment configures a monitoring window for each wave beam;

Step 202, the terminal device opens the monitoring window according to a preset rule, including: and after the first message corresponding to each beam is sent, the terminal equipment starts a monitoring window corresponding to the beam.

If the terminal device configures a monitoring window for each beam, the monitoring window corresponding to each beam may be opened after the first message corresponding to each beam is sent. For example, the terminal device sends the first message through 4 beams, the transmission time of the first message is 8, the terminal device can start the corresponding monitoring window after the first transmission and the second transmission corresponding to the first beam are finished, start the corresponding monitoring window after the third transmission and the fourth transmission corresponding to the second beam are finished, and so on, respectively start the monitoring windows corresponding to the beams at different times, and the terminal device can detect the PDCCH according to the random access identifier used in the currently opened monitoring window at different times, thereby effectively avoiding the repeated detection of the PDCCH by the terminal device and reducing the blind detection times of the terminal device.

Optionally, after the terminal device monitors the downlink control information scrambled by the random access identifier in the monitoring window and receives the second message, the method further includes: and the terminal equipment sends a third message through the beam corresponding to the monitoring window for receiving the second message.

When the terminal equipment configures the corresponding monitoring windows for each beam respectively, the third message can be sent through the beam corresponding to the monitoring window which receives the second message, so that the sending success rate of the third message is improved, and the random access success rate of the terminal equipment is further improved.

As another example, the determining, by the terminal device in step 201, a monitoring window corresponding to the time-frequency resource includes: the terminal equipment configures a monitoring window according to the association period of the wave beam and the time-frequency resource, and each association period corresponds to one monitoring window;

step 202, the terminal device opens the monitoring window according to a preset rule, including: and the terminal equipment starts the monitoring window according to the association period of the wave beam and the time-frequency resource.

The terminal device may also configure the monitoring window according to a period of association of the beam with the time-frequency resource. Among N time-frequency resource units corresponding to K beams for transmitting the first message, N/K adjacent and continuous time-frequency resource units are associated with the same beam; or starting from the first time-frequency resource unit, K adjacent and consecutive time-frequency resource units are sequentially associated with K beams. In either association mode, each association period is used for associating K time-frequency resource units, and the association period between the beam and the time-frequency resource units is N/K, so that one monitoring window is configured for each association period, and N/K monitoring windows are required to be configured. The terminal device may sequentially open the monitoring windows according to the association period of the beam and the time-frequency resource.

As yet another example, the determining, by the terminal device in step 201, a monitoring window corresponding to the time-frequency resource includes: the terminal equipment configures the same monitoring window for the at least two beams;

Step 202, the terminal device opens the monitoring window according to a preset rule, including: and after the terminal equipment sends the first messages corresponding to the at least two beams, starting the monitoring window.

If the terminal device configures the same monitoring window for all beams, the monitoring window may be opened after the first messages corresponding to all beams are sent, that is, after the first messages are transmitted N times.

In the embodiment of the application, when the terminal equipment transmits the first message through at least two beams, no matter which mode is adopted to configure the monitoring windows, only one monitoring window can be opened at the same time, and the terminal equipment can detect the PDCCH according to the random access identifier used in the currently opened monitoring window at different times, thereby effectively avoiding the repeated detection of the PDCCH by the terminal equipment and reducing the blind detection times of the terminal equipment.

In an optional embodiment of the present application, step 203, the terminal device monitors downlink control information scrambled by the random access identifier in the monitoring window, and receives a second message, including:

Step S31, the terminal equipment calculates a random access identifier used in the monitoring window according to a reference time-frequency resource unit or each time-frequency resource unit corresponding to the monitoring window;

and step S32, the terminal equipment detects a physical downlink control channel by using the random access identifier and receives a second message.

In the embodiment of the application, one monitoring window may correspond to a plurality of time-frequency resource units, when the terminal equipment calculates the random access identifier RA-RNTI used in the monitoring window, the RA-RNTI corresponding to each time-frequency resource unit can be calculated for the plurality of time-frequency resource units in the monitoring window, and the PDCCH is detected by using the plurality of calculated RA-RNTIs.

The terminal device may also determine a reference time-frequency resource unit for a plurality of time-frequency resource units corresponding to the monitoring window, and calculate an RA-RNTI using the reference time-frequency resource unit, so as to detect the PDCCH based on the RA-RNTI corresponding to the monitoring window.

Optionally, the reference time-frequency resource includes any one of the following:

a first time-frequency resource unit or a last time-frequency resource unit in the time-frequency resource;

and selecting the time-frequency resources from the time-frequency resource set according to a preset rule.

The preset rule may be determined locally by the terminal device, or may be indicated by the network side device, or may be a rule predefined by a protocol, which is not specifically limited in the embodiment of the present application. For example, an RA-RNTI corresponding to a time-frequency resource configured using a four-step random access procedure.

In an optional embodiment of the present application, if there are at least two monitoring windows with overlapping areas, in step 203, the terminal device monitors downlink control information scrambled by the random access identifier in the monitoring windows, and receives a second message, including:

step S41, the terminal equipment detects a physical downlink control channel and receives a second message in an overlapping area of the at least two monitoring windows based on random access identifiers used in the at least two monitoring windows; or alternatively

Step S42, the terminal equipment detects a physical downlink control channel and receives a second message based on a random access identifier used in a first monitoring window in an opening state at present, and opens a next monitoring window after the first monitoring window is ended; or alternatively

Step S43, the terminal equipment ends the first monitoring window in the current opening state, opens a second monitoring window, detects a physical downlink control channel based on a random access identifier used in the second monitoring window and receives a second message; the second monitoring window is the next monitoring window of the first monitoring window.

There may be instances in embodiments of the present application where two or more monitoring windows overlap. Referring to fig. 5, an overlapping schematic diagram of a monitoring window according to an embodiment of the present application is shown. As shown in fig. 5, there is an overlap region between the two RAR windows.

In this case, the terminal device may detect the PDCCH using one or more random access identifiers simultaneously used in the overlapping monitoring windows in the overlapping area of the monitoring windows, so as to avoid missed detection and improve detection accuracy.

The terminal device may also open the next monitoring window, that is, the second monitoring window, after the first monitoring window currently in the open state is ended. When the first monitoring window is opened, the overlapping area of the monitoring windows is only the area corresponding to the first monitoring window, so that the terminal equipment can directly detect the PDCCH based on the random access identifier used in the first monitoring window which is opened currently.

In addition, the terminal device may also end the first monitoring window in the current open state in advance and open the second monitoring window, where the overlapping area of the monitoring windows is only the area corresponding to the second monitoring window, so the device may detect the PDCCH only based on the random access identifier used in the second monitoring window.

The embodiment of the application provides various solutions for the situation that at least two monitoring windows are partially overlapped, so that repeated detection or missed detection of the PDCCH by the terminal equipment can be avoided, the blind detection times of the terminal equipment are reduced, and the detection accuracy of the PDCCH is improved.

The embodiment of the application provides a message receiving method, which is characterized in that terminal equipment can send a first message for multiple times by utilizing a plurality of time-frequency resource units in the random access process, and start a monitoring window at different moments according to a preset rule to support the multiple transmission advanced beam connection function of PRACH, thereby reducing the delay of PRACH transmission, improving the receiving success rate of PRACH and further improving the random access success rate of the terminal equipment.

According to the message receiving method provided by the embodiment of the application, the execution main body can be a message receiving device. In the embodiment of the present application, a message receiving device executes a message receiving method as an example, and the message receiving device provided in the embodiment of the present application is described.

In a second aspect, an embodiment of the present application provides a message receiving apparatus, where the apparatus may be applied to a terminal device. Referring to fig. 6, a block diagram of a message receiving apparatus according to an embodiment of the present application is shown. As shown in fig. 6, the apparatus 60 may specifically include:

A monitoring window determining module 601, configured to determine a monitoring window corresponding to the time-frequency resource; the time-frequency resource comprises at least two time-frequency resource units, and each time-frequency resource unit is used for transmitting a first message;

A monitoring window opening module 602, configured to open the monitoring window according to a preset rule by the terminal device;

And the message receiving module 603 is configured to monitor, in the monitoring window, downlink control information scrambled by the random access identifier, and receive a second message.

Optionally, the apparatus further comprises:

The resource selection module is used for selecting N time-frequency resource units from the time-frequency resource set according to the transmission times of the first message; the transmission times of the first message are N, wherein N is a positive integer greater than 1;

time-frequency resources of a random access channel corresponding to the four-step random access flow;

Time-frequency resources of a random access channel corresponding to the two-step random access flow;

supporting the time-frequency resource of the random access channel corresponding to the four-step random access flow of the third message repeated transmission;

And supporting the time-frequency resource of the random access channel corresponding to the four-step random access flow of the repeated transmission of the first message.

Optionally, the time-frequency resource is indicated by a protocol specification or a system message.

Optionally, the terminal device transmits the first message through a single beam; the resource selection module comprises:

and the resource selection sub-module is used for selecting N time-frequency resource units corresponding to the downlink reference signals from the time-frequency resource set according to the association relation between the time-frequency resources and the downlink reference signals.

Optionally, the monitoring window determining module includes:

The first window configuration submodule is used for configuring the monitoring window according to the first configuration message; the first configuration message is used for indicating the number of monitoring windows or the number of first messages corresponding to each monitoring window.

Optionally, the first configuration message carries a first indication, where the first indication is used to indicate that the monitoring window supports a threshold of transmission times of the first message; the first window configuration sub-module includes:

The first configuration unit is used for determining M monitoring windows according to the transmission times of the first message and the first indication, wherein the M monitoring windows are used for supporting N times of transmission of the first message, and the transmission times of the first message corresponding to each monitoring window are not more than the transmission times threshold.

Optionally, the first configuration message carries a second instruction, where the second instruction is used to instruct a transmission period of a physical downlink control channel; the first window configuration sub-module includes:

And the second configuration unit is used for configuring a monitoring window according to the transmission times of the first message and the second instruction so that the time-frequency resources in the transmission period of the physical downlink control channel correspond to the same monitoring window.

Optionally, the monitoring window opening module includes:

The first opening sub-module is used for opening the monitoring window according to a preset period; the time-frequency resource in the preset period corresponds to the same monitoring window;

wherein the preset period includes any one of the following:

protocol-specified periods;

A period configured by the second configuration message;

The window length of the monitoring window;

and the synchronization signal and the physical broadcast channel block corresponding to the four-step random access flow are associated with the time-frequency resource of the random access channel or the association pattern period.

Presetting a wireless frame;

a first one of the N time-frequency resource units;

and the synchronous signals and the physical broadcast channel blocks corresponding to the four-step random access flow are associated with the time-frequency resources of the random access channel or the starting points of the associated pattern periods.

Optionally, the terminal device transmits the first message through at least two beams; the resource selection module comprises:

the transmission frequency determining submodule is used for determining the transmission frequency of the first message corresponding to each wave beam according to the transmission frequency of the first message and the quantity of the wave beams;

And the resource determination submodule is used for determining the time-frequency resource unit associated with each wave beam from the time-frequency resource set according to the transmission times of the first message corresponding to each wave beam.

Optionally, when the terminal device transmits the first message through at least two beams, the beams are in one-to-one correspondence with the preamble.

Optionally, the apparatus further comprises:

the target beam determining module is used for determining a target beam according to the random access preamble identifier corresponding to the received second message;

and the first sending module is used for sending a third message through the target beam.

Optionally, the monitoring window determining module includes:

a second window configuration sub-module, configured to configure a monitoring window for each beam by the terminal device;

the monitoring window opening module comprises:

And the second opening sub-module is used for opening the monitoring window corresponding to each wave beam after the first message corresponding to each wave beam is sent.

Optionally, the apparatus further comprises:

and the second sending module is used for sending a third message through a beam corresponding to the monitoring window for receiving the second message.

Optionally, the monitoring window determining module includes:

A third window configuration sub-module, configured to configure a monitoring window according to association periods of the beam and the time-frequency resource, where each association period corresponds to one monitoring window;

the monitoring window opening module comprises:

And the third opening sub-module is used for opening the monitoring window according to the association period of the wave beam and the time-frequency resource.

Optionally, the monitoring window determining module includes:

A fourth window configuration sub-module configured to configure the same monitoring window for the at least two beams;

the monitoring window opening module comprises:

and the fourth opening sub-module is used for opening the monitoring window after the first messages corresponding to the at least two beams are sent.

Optionally, the apparatus further comprises:

A transmission mode determining module, configured to determine a transmission mode of the first message according to a third configuration message or a protocol specification; the third configuration message is used for indicating a transmission mode of the first message, or the third configuration message is used for indicating a preset condition corresponding to the transmission mode of the first message; the transmission mode includes: the terminal device transmits the first message through a single beam or the terminal device transmits the first message through at least two beams.

Optionally, the message receiving module includes:

A calculation sub-module, configured to calculate a random access identifier used in the monitoring window according to a reference time-frequency resource unit or each time-frequency resource unit corresponding to the monitoring window;

And the first receiving sub-module is used for detecting the physical downlink control channel by utilizing the random access identifier and receiving a second message.

Optionally, if there is an overlapping area between at least two monitoring windows, the message receiving module includes:

a second receiving sub-module, configured to detect a physical downlink control channel and receive a second message in an overlapping area of the at least two monitoring windows based on random access identifiers used in the at least two monitoring windows; or alternatively

The third receiving sub-module is used for detecting a physical downlink control channel and receiving a second message based on a random access identifier used in a first monitoring window in a current opening state, and opening a next monitoring window after the first monitoring window is ended; or alternatively

A fourth receiving sub-module, configured to end a first monitoring window currently in an open state, open a second monitoring window, detect a physical downlink control channel based on a random access identifier used in the second monitoring window, and receive a second message; the second monitoring window is the next monitoring window of the first monitoring window.

The message receiving device in the embodiment of the application can be an electronic device, for example, an electronic device with an operating system, or can be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal device. By way of example, the terminal devices may include, but are not limited to, the types of terminal devices 11 listed above.

The message receiving device provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, where the memory 702 stores a program or instructions executable on the processor 701, for example, when the communication device 700 is a network side device, the program or instructions implement the steps of the message receiving method embodiment of the first aspect when executed by the processor 701, and achieve the same technical effects. When the communication device 700 is a terminal device, the program or the instructions when executed by the processor 701 implement the steps of the embodiment of the message receiving method described in the second aspect, and the same technical effects can be achieved, so that repetition is avoided and detailed description is omitted here.

Fig. 8 is a schematic diagram of a hardware structure of a terminal device for implementing an embodiment of the present application.

The terminal device 800 includes, but is not limited to: at least part of the components of the radio frequency unit 801, the network module 802, the audio output unit 803, the input unit 804, the sensor 805, the display unit 806, the user input unit 807, the interface unit 808, the memory 809, and the processor 810, etc.

Those skilled in the art will appreciate that the terminal device 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal device structure shown in fig. 8 does not constitute a limitation of the terminal device, and the terminal device may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 804 may include a graphics processing unit (Graphics Processing Unit, GPU) 8041 and a microphone 8042, with the graphics processor 8041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 801 may transmit the downlink data to the processor 810 for processing; in addition, the radio frequency unit 801 may send uplink data to the network side device. In general, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 809 may include volatile memory or nonvolatile memory, or the memory 809 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 809 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.

The processor 810 is configured to determine a monitoring window corresponding to the time-frequency resource; the time-frequency resource comprises at least two time-frequency resource units, and each time-frequency resource unit is used for transmitting a first message; opening the monitoring window according to a preset rule;

the radio frequency unit 801 is configured to monitor downlink control information scrambled by the random access identifier in the monitoring window, and receive a second message.

Optionally, the processor 810 is further configured to:

the terminal equipment selects N time-frequency resource units from the time-frequency resource set according to the transmission times of the first message; the transmission times of the first message are N, wherein N is a positive integer greater than 1;

Optionally, the terminal device transmits the first message through a single beam; the processor 810 is specifically configured to:

And selecting N time-frequency resource units corresponding to the downlink reference signals from the time-frequency resource set according to the association relation between the time-frequency resources and the downlink reference signals.

Optionally, the processor 810 is specifically configured to:

Configuring a monitoring window according to the first configuration message; the first configuration message is used for indicating the number of monitoring windows or the number of first messages corresponding to each monitoring window.

Optionally, the first configuration message carries a first indication, where the first indication is used to indicate that the monitoring window supports a threshold of transmission times of the first message; the processor 810 is specifically configured to:

And determining M monitoring windows according to the transmission times of the first message and the first indication, wherein the M monitoring windows are used for supporting N times of transmission of the first message, and the transmission times of the first message corresponding to each monitoring window are not more than the transmission times threshold.

Optionally, the first configuration message carries a second instruction, where the second instruction is used to instruct a transmission period of a physical downlink control channel; the processor 810 is specifically configured to:

And configuring a monitoring window according to the transmission times of the first message and the second instruction, so that the time-frequency resource in the transmission period of the physical downlink control channel corresponds to the same monitoring window.

Optionally, the processor 810 is specifically configured to:

opening the monitoring window according to a preset period; the time-frequency resource in the preset period corresponds to the same monitoring window;

wherein the preset period includes any one of the following:

protocol-specified periods;

A period configured by the second configuration message;

The window length of the monitoring window;

Presetting a wireless frame;

a first one of the N time-frequency resource units;

Optionally, the terminal device transmits the first message through at least two beams; the processor 810 is specifically configured to:

determining the transmission times of the first message corresponding to each beam according to the transmission times of the first message and the number of the beams;

and determining the time-frequency resource unit associated with each wave beam from the time-frequency resource set according to the transmission times of the first message corresponding to each wave beam.

Optionally, the processor 810 is further configured to: determining a target beam according to the random access preamble identifier corresponding to the received second message;

the radio frequency unit 801 is also configured to: and sending a third message through the target beam.

Optionally, the processor 810 is specifically configured to:

Configuring a monitoring window for each beam;

and after the first message corresponding to each wave beam is sent, opening a monitoring window corresponding to the wave beam.

Optionally, the processor 810 is further configured to:

And sending a third message through the beam corresponding to the monitoring window for receiving the second message.

Optionally, the processor 810 is specifically configured to:

Configuring a monitoring window according to the association period of the wave beam and the time-frequency resource, wherein each association period corresponds to one monitoring window;

And opening the monitoring window according to the association period of the wave beam and the time-frequency resource.

Optionally, the processor 810 is specifically configured to:

configuring the same monitoring window for the at least two beams;

and after the first messages corresponding to the at least two beams are sent, opening the monitoring window.

Optionally, the processor 810 is further configured to:

Determining a transmission mode of the first message according to a third configuration message or protocol specification; the third configuration message is used for indicating a transmission mode of the first message, or the third configuration message is used for indicating a preset condition corresponding to the transmission mode of the first message; the transmission mode includes: the terminal device transmits the first message through a single beam or the terminal device transmits the first message through at least two beams.

Optionally, the processor 810 is specifically configured to:

Calculating a random access identifier used in the monitoring window according to a reference time-frequency resource unit or each time-frequency resource unit corresponding to the monitoring window;

the radio frequency unit 801 is specifically configured to detect a physical downlink control channel by using the random access identifier and receive a second message.

Optionally, if there is an overlapping area between at least two monitoring windows, the radio frequency unit 801 is specifically configured to:

detecting a physical downlink control channel and receiving a second message based on random access identifiers used in the at least two monitoring windows in an overlapping region of the at least two monitoring windows; or alternatively

Detecting a physical downlink control channel and receiving a second message based on a random access identifier used in a first monitoring window in an opening state, and opening a next monitoring window after the first monitoring window is ended; or alternatively

Ending the first monitoring window in the current opening state, opening a second monitoring window, detecting a physical downlink control channel based on a random access identifier used in the second monitoring window, and receiving a second message; the second monitoring window is the next monitoring window of the first monitoring window.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned message receiving method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Wherein the processor is a processor in the terminal device described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the message receiving method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement each process of the above-mentioned message receiving method embodiment, and achieve the same technical effects, so that repetition is avoided, and details are not repeated herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method of message reception, the method comprising:

The terminal equipment starts the monitoring window according to a preset rule;

2. The method according to claim 1, wherein before the terminal device determines the monitoring window corresponding to the time-frequency resource, the method further comprises:

3. The method of claim 1, wherein the time-frequency resources are indicated by a protocol specification or a system message.

4. The method of claim 2, wherein the terminal device transmits the first message over a single beam; the terminal equipment selects N time-frequency resource units from the time-frequency resource set according to the transmission times of the first message, and the method comprises the following steps:

And the terminal equipment selects N time-frequency resource units corresponding to the downlink reference signals from the time-frequency resource set according to the association relation between the time-frequency resources and the downlink reference signals.

5. The method of claim 4, wherein the determining, by the terminal device, a monitoring window corresponding to the time-frequency resource includes:

the terminal equipment configures a monitoring window according to the first configuration message; the first configuration message is used for indicating the number of monitoring windows or the number of first messages corresponding to each monitoring window.

6. The method of claim 5, wherein the first configuration message carries a first indication, and the first indication is used for indicating that the monitoring window supports a threshold of transmission times of the first message; the terminal device configures a monitoring window according to a first configuration message, and the method comprises the following steps:

The terminal equipment determines M monitoring windows according to the transmission times of the first message and the first indication, wherein the M monitoring windows are used for supporting N times of transmission of the first message, and the transmission times of the first message corresponding to each monitoring window are not more than the transmission times threshold.

7. The method of claim 5, wherein the first configuration message carries a second indication, and the second indication is used for indicating a transmission period of a physical downlink control channel; the terminal device configures a monitoring window according to a first configuration message, and the method comprises the following steps:

and the terminal equipment configures a monitoring window according to the transmission times of the first message and the second instruction so that the time-frequency resource in the transmission period of the physical downlink control channel corresponds to the same monitoring window.

8. The method of claim 4, wherein the terminal device opens the monitoring window according to a preset rule, comprising:

the terminal equipment starts the monitoring window according to a preset period; the time-frequency resource in the preset period corresponds to the same monitoring window;

wherein the preset period includes any one of the following:

protocol-specified periods;

A period configured by the second configuration message;

The window length of the monitoring window;

9. The method of claim 8, wherein the starting point of the preset period comprises any one of:

Presetting a wireless frame;

a first one of the N time-frequency resource units;

10. The method according to claim 2, characterized in that the terminal device transmits the first message via at least two beams; the terminal equipment selects N time-frequency resource units from the time-frequency resource set according to the transmission times of the first message, and the method comprises the following steps:

The terminal equipment determines the transmission times of the first message corresponding to each wave beam according to the transmission times of the first message and the quantity of the wave beams;

And the terminal equipment determines the time-frequency resource unit associated with each wave beam from the time-frequency resource set according to the transmission times of the first message corresponding to each wave beam.

11. The method of claim 10, wherein among the N time-frequency resource units corresponding to the K beams used for transmitting the first message, adjacent and consecutive N/K time-frequency resource units are associated with the same beam; or starting from the first time-frequency resource unit, K adjacent and consecutive time-frequency resource units are sequentially associated with K beams.

12. The method of claim 10, wherein the beams correspond one-to-one to the preamble when the terminal device transmits the first message over at least two beams.

13. The method of claim 12, wherein the terminal device listens for the random access identifier scrambled downlink control information within the monitoring window and receives the second message, the method further comprising:

the random access preamble identifier corresponding to the second message received by the terminal equipment determines a target beam;

And the terminal equipment sends a third message through the target beam.

14. The method of claim 10, wherein the determining, by the terminal device, a monitoring window corresponding to the time-frequency resource includes:

The terminal equipment configures a monitoring window for each wave beam;

the terminal device opens the monitoring window according to a preset rule, including:

And after the first message corresponding to each beam is sent, the terminal equipment starts a monitoring window corresponding to the beam.

15. The method of claim 14, wherein the terminal device listens for the random access identifier scrambled downlink control information within the monitoring window and receives the second message, the method further comprising:

And the terminal equipment sends a third message through the beam corresponding to the monitoring window for receiving the second message.

16. The method of claim 10, wherein the determining, by the terminal device, a monitoring window corresponding to the time-frequency resource includes:

The terminal equipment configures a monitoring window according to the association period of the wave beam and the time-frequency resource, and each association period corresponds to one monitoring window;

and the terminal equipment starts the monitoring window according to the association period of the wave beam and the time-frequency resource.

17. The method of claim 10, wherein the determining, by the terminal device, a monitoring window corresponding to the time-frequency resource includes:

The terminal equipment configures the same monitoring window for the at least two beams;

And after the terminal equipment sends the first messages corresponding to the at least two beams, starting the monitoring window.

18. The method according to claim 1, wherein before the terminal device determines the monitoring window corresponding to the time-frequency resource, the method further comprises:

19. The method of claim 1, wherein the terminal device listens for the random access identifier scrambled downlink control information within the monitoring window and receives a second message, comprising:

The terminal equipment calculates a random access identifier used in the monitoring window according to a reference time-frequency resource unit or each time-frequency resource unit corresponding to the monitoring window;

and the terminal equipment detects a physical downlink control channel by utilizing the random access identifier and receives a second message.

20. The method of claim 19, wherein the reference time-frequency resource comprises any one of:

21. The method according to claim 1, wherein if there are at least two monitoring windows with overlapping areas, the terminal device monitors the random access identifier scrambled downlink control information in the monitoring windows, and receives a second message, including:

The terminal equipment detects a physical downlink control channel and receives a second message in an overlapping area of the at least two monitoring windows based on random access identifiers used in the at least two monitoring windows; or alternatively

The terminal equipment detects a physical downlink control channel based on a random access identifier used in a first monitoring window in an opening state at present, receives a second message, and opens a next monitoring window after the first monitoring window is ended; or alternatively

The terminal equipment ends a first monitoring window in an opening state at present, opens a second monitoring window, detects a physical downlink control channel based on a random access identifier used in the second monitoring window, and receives a second message; the second monitoring window is the next monitoring window of the first monitoring window.

22. A message receiving apparatus, comprising:

23. A terminal device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the message receiving method of any one of claims 1 to 21.

24. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the message receiving method according to any of claims 1-21.