CN114696975B

CN114696975B - Rate matching method and device

Info

Publication number: CN114696975B
Application number: CN202011607491.8A
Authority: CN
Inventors: 李东儒; 吴凯; 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2023-09-05
Anticipated expiration: 2040-12-29
Also published as: CN114696975A; WO2022143808A1

Abstract

The embodiment of the application discloses a rate matching method and equipment, wherein the method can be applied to a terminal and comprises the following steps: acquiring first information, wherein the first information comprises at least one of the following: information for determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, first configuration information; wherein the first configuration information is used for configuring the first reference signal; and determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for a non-connected terminal. The embodiment of the application reduces the PDSCH resource overhead caused by carrying out PDSCH rate matching on the first reference signal, and improves the data transmission rate and the system throughput.

Description

Rate matching method and device

Technical Field

The application belongs to the technical field of communication, and particularly relates to a rate matching method and equipment (the equipment can comprise a rate matching device and a terminal).

Background

In order to reduce power consumption, a tracking Reference Signal (Tracking Reference Signal, TRS)/channel state information Reference Signal (Channel State Information-Reference Signal, CSI-RS) may be introduced in a radio resource control (Radio Resource Control, RRC) non-connected state (idle/inactive state) to assist a terminal in performing measurements and the like.

For reference signal (e.g., TRS/CSI-RS) resources for non-connected terminals, it is not yet determined whether the terminal performs rate matching of the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) for the terminal. This may lead to inconsistent understanding of the terminal and the network side device, which may cause interference of the reference signal to data transmission or cause PDSCH resource overhead and waste, affecting communication effectiveness and reliability.

Disclosure of Invention

The embodiment of the application provides a rate matching method and equipment, which can solve the problem that whether a terminal can perform rate matching of a PDSCH (physical downlink shared channel) aiming at a reference signal resource in a non-connection state cannot be determined, and the reliability and the effectiveness of communication are affected.

In a first aspect, a rate matching method is provided, applied to a terminal, and the method includes: acquiring first information, wherein the first information comprises at least one of the following: information for determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, first configuration information; wherein the first configuration information is used for configuring the first reference signal; and determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for a non-connected terminal.

In a second aspect, there is provided a rate matching device comprising: the device comprises an acquisition module for acquiring first information, wherein the first information comprises at least one of the following: information for determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, first configuration information; wherein the first configuration information is used for configuring the first reference signal; and the rate matching module is used for determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for a non-connected state rate matching device.

In a third aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which program or instruction when executed by the processor implements the method according to 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 method according to the first aspect.

In a fifth aspect, there is provided a computer program product comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the method as described in the first aspect.

In a sixth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions to implement the method of the first aspect.

In the embodiment of the application, the terminal acquires first information, wherein the first information comprises at least one of the following: information determining whether a first reference signal is available, a first reference signal available duration, a first reference signal unavailable duration, first configuration information for configuring the first reference signal; and determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for the non-connected terminal. The embodiment of the application determines whether and when to perform the rate matching of the PDSCH on the first reference signal resource according to the first information, thereby reducing unnecessary PDSCH resource expenditure caused by the fact that the first reference signal is still subjected to the rate matching under the condition that the first reference signal is unavailable, avoiding inconsistent understanding of the terminal and network side equipment to perform the PDSCH rate matching on the first reference signal, and improving the data transmission rate and the system throughput.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a schematic flow chart of a rate matching method according to an embodiment of the application;

fig. 3 is a schematic structural view of a rate matching device according to an embodiment of the present application;

fig. 4 is a schematic structural view of a communication device according to an embodiment of the present application;

fig. 5 is a schematic structural view of a terminal according to 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 data so used may be interchanged where appropriate, such that embodiments of the application may be practiced otherwise than as specifically illustrated and described herein, and that the "first" and "second" distinguishing between objects generally being of the same type, and not necessarily limited to the number of objects, such as the first object may 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 air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: a bracelet, earphone, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, where the base station may be called a node B, an evolved node B, 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 node B, an evolved node B (eNB), a next generation node B (gNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific 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 the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

The rate matching method and the device provided by the embodiment of the application are described in detail through specific embodiments and application scenes thereof with reference to the accompanying drawings.

As shown in fig. 2, an embodiment of the present application provides a rate matching method 200, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, the method including the following steps.

S202: acquiring first information, wherein the first information comprises at least one of the following: information determining whether a first reference signal is available, a first reference signal available duration, a first reference signal unavailable duration, and first configuration information.

The first reference signal mentioned in the various embodiments of the present application may include at least one of the following: tracking Reference signals (Tracking Reference Signal, TRS), channel state information Reference signals (Channel State Information-Reference Signal, CSI-RS), positioning Reference signals (Positioning Reference Signals, PRS). The first reference signal resource may be configured by a system information block (System Information Blocks, SIB) configuration and/or terminal-specific radio resource control (Radio Resource Control, RRC) signaling (e.g., servingcellcon figcommon). For example, the first reference signal is configured through at least one of SIB, RRC release (release), RRC resume (resume) signaling. For another example, when the first reference signal includes a PRS, configuration information of the PRS may be obtained through a positioning system message (PosSIB).

It should be noted that, if not specifically described, the types of terminals applicable to the embodiments of the present disclosure include at least one of the following: a connection state terminal, an idle state (idle) terminal, and an inactive state (inactive) terminal.

The idle state and the inactive state are collectively referred to as the unconnected state in the embodiments of the present specification. In this embodiment, the first reference signal is configured for use by a non-connected terminal. The unconnected state refers to the RRC being in a unconnected state. The non-connection state terminal can be an RRC idle state idle terminal and also can be an RRC inactive state inactive terminal. For example, the network side device configuration shares TRS/CSI-RS originally used for the RRC-connected terminal for use by the non-connected terminal.

The first configuration information is used for configuring a first reference signal, and the first configuration information can be carried by at least one of the following signaling: SIB, RRC related signaling. The RRC related signaling may be one or more of dedicated RRC signaling, RRC release signaling, and RRC resume (resume) signaling, among others.

For the above information determining whether the first reference signal is available, for example, the information indicates whether the first reference signal is available in the case of the unconnected state, the information indicates whether the first reference signal is available in the case of the connected state, and the like. In case the first information is information determining whether the first reference signal is available, the terminal may obtain the information determining whether the first reference signal is available based on at least one of the following approaches in S202: the terminal blindly detects whether the first reference signal is available; the network side equipment indicates whether a first reference signal is available; the terminal determines whether the first reference signal is available based on a preset condition (e.g., whether a paging PDCCH is received).

In this embodiment, the first reference signal available duration may be indicated by a first reference signal available duration indication or may be indicated by a first reference signal unavailable duration indication. Wherein the time outside the first reference signal available duration may be the first reference signal unavailable duration; the time outside the first reference signal unavailable duration may be the first reference signal available duration.

Furthermore, the first reference signal available duration may contain two contents: 1, indicating that the first reference signal is available; 2, indicating the duration of time for which the first reference signal is available. The same thing can also include two contents for the first reference signal unavailable duration: 1, indicating that the first reference signal is not available; 2, indicating the duration of the first reference signal being unavailable.

S204: according to the first information, determining whether to perform rate matching of a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) on a first reference signal, wherein the first reference signal is configured for non-connected terminals.

The determination of whether to perform rate matching of PDSCH on the first reference signal referred to in the various embodiments of this specification may also be referred to as: it is determined whether resources occupied by the first reference signal can be used for PDSCH transmission. Specifically, for example, when determining rate matching of PDSCH on the first reference signal, resources occupied by the first reference signal cannot be used for PDSCH transmission; when determining that rate matching of PDSCH is not performed on the first reference signal, resources occupied by the first reference signal may be used for PDSCH transmission. Therefore, whether the first reference signal is subjected to the rate matching of the PDSCH or not can be determined through the first information, so that the utilization rate of resources occupied by the first reference signal is flexibly and dynamically improved, the resource overhead caused by the first reference signal on the PDSCH transmission is reduced, and the system throughput is improved.

The embodiment may further perform the step of rate matching PDSCH on the first reference signal in case it is determined to rate match PDSCH on the first reference signal.

In this embodiment, when the terminal is in a connection state, rate matching of PDSCH may be performed with respect to the first reference signal; in the case that the terminal is in a non-connected state, rate matching of PDSCH can still be performed for the first reference signal.

Among them, the rate matching types of PDSCH may include two types: semi-static rate matching and dynamic rate matching. Which type of rate matching is specifically employed may be determined based on at least one of the following: terminal rate matching correlation capability, PDSCH type, network side device configuration, protocol conventions, etc.

For example, the terminal only supports the semi-static rate matching type, and then the terminal can only perform rate matching on the first reference signal by the semi-static PDSCH rate matching method. For another example, the network side device configuration or protocol convention performs semi-static rate matching on the first reference signal, so that the terminal can only implement rate matching on the first reference signal in a semi-static rate matching manner.

According to the rate matching method provided by the embodiment of the application, the terminal acquires the first information, wherein the first information comprises at least one of the following items: information determining whether a first reference signal is available, a first reference signal available duration, a first reference signal unavailable duration, first configuration information for configuring the first reference signal; and determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for the non-connected terminal. The embodiment of the application provides a solution for judging whether the terminal can perform the rate matching of the PDSCH aiming at the first reference signal resource, avoids the problems of transmission, interference and the like caused by inconsistent understanding of the terminal and network side equipment, and improves the communication reliability.

In addition, in the embodiment of the application, when determining that the rate matching of the PDSCH is not performed on the first reference signal, the resources occupied by the first reference signal can be used for PDSCH transmission. This further reduces unnecessary PDSCH resource overhead caused by rate matching the first reference signal if it is not available, improving data transmission rate and system throughput.

The embodiment of the application can reduce the PDSCH resource expenditure caused by carrying out PDSCH rate matching on the first reference signal, improve the data transmission rate and the system throughput, ensure that the terminal and the network side equipment can carry out PDSCH rate matching understanding consistency when and how to carry out the PDSCH rate matching on the first reference signal, and improve the communication reliability.

To describe in detail how the terminal determines whether to perform rate matching of PDSCH for the first reference signal according to the first information in S204 of embodiment 200, several specific examples will be described below.

Example 1

In the case that the first information includes the information for determining whether a first reference signal is available, the determining whether to perform rate matching of PDSCH on the first reference signal according to the first information includes at least one of:

1) If the first reference signal is available, it is determined that rate matching of PDSCH is performed on the first reference signal, that is, resources occupied by the first reference signal cannot be used for PDSCH transmission.

2) If the first reference signal is not available, it is determined that rate matching of PDSCH is not performed on the first reference signal, i.e., resources occupied by the first reference signal may be used for PDSCH transmission.

The scheme for determining whether to perform rate matching of the PDSCH on the first reference signal according to whether the first reference signal is available or not can solve the problem of resource waste caused by performing PDSCH rate matching (i.e., not performing PDSCH transmission on the first reference signal resource) when the first reference signal is unavailable, and improve system throughput.

Example two

In the case that the first information includes the first reference signal available duration or the first reference signal unavailable duration, the determining whether to perform rate matching of PDSCH on the first reference signal according to the first information includes at least one of:

1) And determining that the first reference signal is subjected to rate matching of the PDSCH in the first reference signal available duration, namely that the resources occupied by the first reference signal cannot be used for PDSCH transmission in the first reference signal available duration.

2) And determining that the rate matching of the PDSCH is not performed on the first reference signal in the first reference signal unavailable duration, namely, the resources occupied by the first reference signal can be used for PDSCH transmission in the first reference signal unavailable duration.

In this embodiment, the first reference signal available duration may be used to determine the first reference signal available duration, and times outside of the available duration may be referred to as unavailable durations; the first reference signal unavailable duration may be used to determine the first reference signal unavailable duration, and times outside of the unavailable duration may be referred to as available durations.

The scheme for determining whether to perform rate matching of the PDSCH on the first reference signal according to the available/unavailable duration of the first reference signal can solve the problem of resource waste caused by performing rate matching of the PDSCH within the unavailable duration of the first reference signal, and effectively improve the throughput of the system.

Example III

In the case that the first information includes first configuration information, determining whether to perform rate matching of PDSCH on the first reference signal according to the first information includes at least one of:

1) And if the first configuration information is received, determining that the first reference signal is subjected to rate matching of the PDSCH. For example, if the first configuration information is received in S202, S204 may directly perform rate matching of PDSCH on the first reference signal.

2) If the first configuration information is not received, determining that rate matching of the PDSCH is not performed on the first reference signal. In this example, the terminal does not receive the first configuration information, which can be understood that the network side device does not configure the first reference signal for the terminal, so that rate matching of PDSCH on the first reference signal is not needed. Specifically, for example, if the SIB is not configured with the first reference signal (e.g., the first TRS/CSI-RS), the first TRS/CSI-RS is not rate matched for PDSCH.

In this embodiment, the terminal directly determines whether to perform PDSCH rate matching on the terminal by determining whether to configure the first reference signal for the terminal through the network side device, and compared with the first and second embodiments of receiving information for determining whether to use the first reference signal, the first reference signal available duration and the first reference signal unavailable duration indication, the signaling overhead caused by the information is reduced, but at the same time, the static configuration method increases the resource overhead of the first reference signal, which is unfavorable for PDSCH transmission and improving system throughput.

The foregoing three embodiments are all information for determining whether to perform rate matching of PDSCH on the first reference signal, the first reference signal available duration, the first reference signal unavailable duration, and the first configuration information, and at least one of these four information may be used to determine whether to perform rate matching of PDSCH on the first reference signal, and actually, two or more information may be combined to determine whether to perform rate matching of PDSCH on the first reference signal, see the fourth embodiment below.

Example IV

In the case that the first configuration information is received, and the first information further includes the information that determines whether a first reference signal is available, the first reference signal available duration, and any one of the first reference signal unavailable durations, the determining whether to perform rate matching of PDSCH on the first reference signal includes at least one of:

1) Determining, if the first reference signal is available, rate matching of PDSCH for the first reference signal;

2) If the first reference signal is not available, determining that rate matching of a PDSCH is not performed on the first reference signal;

3) Determining rate matching of a PDSCH for the first reference signal within the first reference signal available duration;

4) And determining that the rate matching of the PDSCH is not carried out on the first reference signal in the unavailable duration time of the first reference signal.

Of course, in other embodiments, the first information may include both the first configuration information and information determining whether the first reference signal is available and the first reference signal available duration indication. For example, if the terminal receives the first configuration information according to the first information and obtains the available duration indication of the first reference signal, rate matching of PDSCH is performed on the first reference signal within the available duration of the first reference signal.

Optionally, in the foregoing embodiments, in a case where the terminal is in a non-connected state, the PDSCH is scheduled by first downlink control information (Downlink Control Information, DCI), and the first DCI is scrambled by any one of: system information radio network temporary identity (SI-RNTI), paging radio network temporary identity (P-RNTI), temporary cell radio network temporary identity (TC-RNTI), random access radio network temporary identity (RA-RNTI), message B radio network temporary identity (msg.b-RNTI).

In this embodiment, in the case that the terminal is in the RRC non-connected state, it may still be determined according to the first information whether rate matching of the PDSCH scheduled by the first DCI is performed for the first reference signal, that is, whether the resources occupied by the first reference signal may be used for transmission of the PDSCH scheduled by the first DCI. For example, the first reference signal that the network configures for measurement by the non-connected state terminal is a TRS/CSI-RS. The first information includes: the first configuration information and information determining whether the first reference signal is available. When the terminal is in a non-connection state, the terminal determines whether the TRS/CSI-RS resource can be used for transmitting the PDSCH scrambled by the P-RNTI according to the received information for determining whether the first reference signal is available after receiving the first configuration information.

It can be appreciated that, in parallel with the foregoing embodiments, in other embodiments, the effect of PDSCH rate matching may be achieved by limiting the scheduling of the network side device, for example, when the network side device schedules the PDSCH/physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) for the non-connected or connected terminal, the resource location where the first reference signal is located needs to be avoided, so as to achieve the effect of rate matching.

Optionally, in embodiment 200, in a case where the first information includes the information for determining whether the first reference signal is available, embodiment 200 may further include: determining whether the first reference signal is available according to at least one of:

1) Paging physical downlink control channel (Physical Downlink Control Channel, PDCCH).

In this example, determining whether the first reference signal is available includes: and determining whether the first reference signal is available according to a paging PDCCH, wherein the paging PDCCH comprises an indication of whether the first reference signal is available or not specifically, for example, in the case that the terminal is in a connection state, the paging PDCCH is received.

In the above example, determining whether the first reference signal is available further comprises: and receiving the paging PDCCH when the terminal is in a non-connection state, wherein the paging PDCCH comprises an indication whether the first reference signal is available.

The conditions underlying this example are: the paging PDCCH still needs to be received after the terminal enters the connected state, and indicates whether the first reference signal (e.g., TRS/CSI-RS) is available. In this way, the terminal may determine whether to perform rate matching of PDSCH on the resources of the first reference signal according to the indication of whether the first reference signal is available in the paging PDCCH.

It can be appreciated that the terminal must receive the paging PDCCH when in the RRC non-connected state, and whether the paging PDCCH needs to be received according to the network side configuration when the terminal is in the connected state. If the network side equipment configures the connection state terminal to not need to monitor the paging PDCCH, the information for determining whether the first reference signal is available cannot be obtained through the paging PDCCH.

2) Paging messages.

In this example, determining whether the first reference signal is available based on the paging message includes: and receiving the paging message under the condition that the terminal is in a connection state, wherein the paging message comprises the information for determining whether the first reference signal is available.

In the above example, determining whether the first reference signal is available further comprises: and receiving the paging message under the condition that the terminal is in a non-connection state, wherein the paging message comprises an indication whether the first reference signal is available or not.

The conditions underlying this example are: the paging message still needs to be received after the terminal enters the connected state, and indicates whether the first reference signal (e.g., TRS/CSI-RS) is available. In this way, the terminal may determine whether to rate match PDSCH on the resources of the first reference signal based on the indication of whether the first reference signal is available in the paging message.

It is understood that the paging message may be understood as a PDSCH scheduled by the paging PDCCH. The terminal needs to try to receive the paging message when in the RRC non-connected state, and whether to receive the paging message according to the network side configuration when the terminal is in the connected state. If the network side equipment configures the connection state terminal to not need to monitor the paging message, the indication of whether the first reference signal is available or not can not be obtained through the paging message.

3) Paging advance indication (Paging Early Indication, PEI).

In this example, determining whether the first reference signal is available based on the paging advance indication includes: receiving the paging advance indication under the condition that the terminal is in a connection state, wherein the paging advance indication comprises an indication whether the first reference signal is available or not;

in the above example, determining whether the first reference signal is available further comprises: and receiving the paging advance indication when the terminal is in a non-connection state, wherein the paging advance indication comprises an indication whether the first reference signal is available or not.

The conditions underlying this example are: the paging advance indication needs to be received after the terminal enters the connected state and indicates whether the first reference signal (e.g., TRS/CSI-RS) is available. In this way, the terminal may determine whether to perform rate matching of PDSCH on the resources of the first reference signal according to whether the first reference signal in the paging advance indication is available.

It can be understood that if the network side device configures the connection state terminal without monitoring the paging advance indication, the information for determining whether the first reference signal is available cannot be obtained through the paging advance indication.

4) The paging advance indication indicates whether to monitor the paging PDCCH.

This example implicitly obtains information determining whether the first reference signal is available by paging advance indication indicating whether to listen to the paging PDCCH. The information for determining whether the first reference signal is available determines whether the first reference signal is available in a connected state or a non-connected state according to whether the terminal is in the connected state or the non-connected state.

Determining whether the first reference signal is available based on the paging advance indication indicating whether to monitor a paging PDCCH in this example includes at least one of: if the paging advance indication indicates monitoring of a paging PDCCH, determining that the first reference signal is available; if the paging advance indication indicates not to monitor the paging PDCCH, it is determined that the first reference signal is not available.

It can be understood that if the network side device configures the connection state terminal to not need to monitor the paging advance indication, it is unable to determine whether the first reference signal is available by implicitly acquiring information of whether the paging PDCCH is monitored or not through the paging advance indication.

5) A radio resource Control (Radio Resource Control, RRC) or a medium access Control Element (Media Access Control-Control Element, MAC CE).

In this example, determining whether the first reference signal is available based on the RRC or MAC CE includes: and receiving the RRC or the MAC CE when the terminal is in a connected state, wherein the RRC or the MAC CE comprises an indication whether the first reference signal is available or not.

Alternatively, the example may indicate whether the connection state terminal may use the first reference signal configured for the non-connection state terminal through RRC or MAC CE.

In one example, the terminal determines whether to perform rate matching of PDSCH on the resources of the first reference signal by receiving an indication of whether the first reference signal carried in RRC or MAC CE is available, which may be applied in a case where the network side device configures the connection state terminal to not need to receive paging PDCCH, paging advance indication or paging message.

In one example, the network side device configures or agrees to configure the first reference signal for the non-connected state as a semi-static first reference signal resource for the connected state terminal, and activates or deactivates the semi-static first reference signal through MAC CE signaling.

In this example, the first reference signal is not the same as the active time delay of the first reference signal configured for the connected state. Furthermore, if the terminal in the connected state switches BWP, the terminal needs to receive new MAC-CE signaling as described above for activation or deactivation of the first reference signal.

6) DCI format 2_0 indicates that a first semi-static flexible symbol, on which the first reference signal is configured, is set as a flexible symbol and/or an uplink symbol.

7) The DCI indicates uplink channel or signal transmission on a first semi-static flexible symbol on which the first reference signal is configured.

Based on the examples of 6) and 7), setting a first semi-static flexible symbol to a flexible symbol and/or an uplink symbol according to the DCI format 2_0 indication, or determining whether the first reference signal is available for at least one of uplink channel or signal transmission on the first semi-static flexible symbol according to the DCI indication includes: and determining that the first reference signal is unavailable in the case that the DCI format 2_0 indicates that a first semi-static flexible symbol is set as a flexible symbol and/or an uplink symbol, or that the DCI indicates at least one of uplink channel or signal transmission is performed on the first semi-static flexible symbol.

This example is specifically, for example, in the case where the first reference signal is configured on a semi-static flexible symbol, if a DCI 2-0 dynamic indication is received to set the semi-static flexible symbol as a flexible symbol or an uplink symbol, or if a DCI indication is received to perform uplink transmission on the semi-static flexible symbol, it is determined that the first reference signal is no longer available.

Optionally, in a case where the terminal is in a connected state, the first reference signal mentioned in embodiment 200 may be further used for at least one of the following: time-frequency synchronization, channel state information (Channel State Information, CSI) measurements, radio resource management (Radio Resource Management, RRM) measurements, radio link monitoring, beam failure detection, beam management, automatic gain control (Automatic Gain Control, AGC), fast secondary cell activation.

For embodiments in which the first reference signal may be used for fast secondary cell activation for a connected terminal, see example one and example two.

Example one: and adding whether the first reference signal is available for the secondary cell activation measurement indication or not in at least one of RRC, MAC CE and PDCCH signaling carrying the secondary cell activation indication. It should be noted that, in combination with the above embodiment, the specific indication content of whether the added first reference signal is available for the secondary cell activation measurement indication may be determined according to the paging PDCCH received on the primary cell (PCell) or the paging advance indication or the information in the paging message indicating whether the first reference signal is available. For example, if the first reference signal is available in the paging PDCCH received by the primary cell, the content of the indication of whether the first reference signal is available for the secondary cell activation measurement is that the first reference signal is available for the secondary cell activation.

If the first reference signal is available for secondary cell activation measurements indicating that the first reference signal is available for secondary cell activation, the first reference signal is applied for secondary cell activation measurements. If the first reference signal is available for secondary cell activation measurement indicating that the first reference signal is not available for secondary cell activation or if the first reference signal is not received for secondary cell activation measurement indication, the secondary cell activation measurement is not performed using the first reference signal.

Example two: defining new behavior: monitoring a paging PDCCH or a paging advance indication on a secondary cell, wherein the paging PDCCH or the paging advance indication carries information for determining whether a first reference signal is available, and if the information for determining whether the first reference signal is available indicates that the first reference signal is available, the first reference signal can be used for carrying out secondary cell activation measurement; if the information determining whether the first reference signal is available indicates that the first reference signal is not available, the first reference signal cannot be used to make secondary cell activation measurements.

In both examples, the terminal may also report whether it has the capability to perform secondary cell activation based on the first reference signal.

In the above two examples, the first reference signal may be used for the connection state terminal to quickly activate the secondary cell, so that the activation delay of the activation of the secondary cell may be reduced, and the secondary cell measurement is more accurate.

It should be noted that, in the rate matching method provided by the embodiment of the present application, the execution body may be a rate matching device, or a control module in the rate matching device for executing the rate matching method. In the embodiment of the present application, an example of a rate matching method performed by a rate matching device is described as an example, which is the rate matching device provided by the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a rate matching device according to an embodiment of the present application, which may correspond to a terminal in other embodiments. As shown in fig. 3, the apparatus 300 includes:

the obtaining module 302 may be configured to obtain first information, where the first information includes at least one of: information for determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, first configuration information; the first configuration information is used for configuring the first reference signal.

The rate matching module 304 may be configured to determine, according to the first information, whether to perform rate matching on the PDSCH on the first reference signal, where the first reference signal is configured for use by a non-connected rate matching device.

In the embodiment of the present application, the rate matching device acquires first information, where the first information includes at least one of the following: information determining whether a first reference signal is available, a first reference signal available duration, a first reference signal unavailable duration, first configuration information for configuring the first reference signal; and determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for the non-connected rate matching device. The embodiment of the application provides a solution for judging whether the rate matching of the PDSCH can be carried out aiming at the first reference signal resource, avoids the problems of transmission, interference and the like caused by inconsistent understanding of a rate matching device and network side equipment, and improves the communication reliability.

In addition, in the embodiment of the present application, when it is determined that the first reference signal is not available, rate matching of PDSCH may not be performed on the first reference signal, that is, the resources occupied by the first reference signal may be used for PDSCH transmission. This further reduces unnecessary PDSCH resource overhead caused by rate matching the first reference signal if it is not available, improving data transmission rate and system throughput.

Optionally, as an embodiment, in a case where the first information includes the information for determining whether the first reference signal is available, the rate matching module 304 is configured to at least one of:

determining, if the first reference signal is available, rate matching of PDSCH for the first reference signal;

if the first reference signal is not available, determining that rate matching of PDSCH is not performed on the first reference signal.

Optionally, as an embodiment, in a case where the first information includes the first reference signal available duration or the first reference signal unavailable duration, the rate matching module 304 is configured to at least one of:

determining rate matching of a PDSCH for the first reference signal within the first reference signal available duration;

and determining that the rate matching of the PDSCH is not carried out on the first reference signal in the unavailable duration time of the first reference signal.

Optionally, as an embodiment, in a case where the first information includes first configuration information, the rate matching module 304 is configured to at least one of:

determining that rate matching of the PDSCH is performed on the first reference signal if the first configuration information is received;

If the first configuration information is not received, determining that rate matching of the PDSCH is not performed on the first reference signal.

Optionally, as an embodiment, in a case that the first configuration information is received, and the first information further includes the information that determines whether a first reference signal is available, where the first reference signal is available for a duration, and where the first reference signal is not available for any one of the durations, the rate matching module 304 is configured to at least one of:

if the first reference signal is not available, determining that rate matching of a PDSCH is not performed on the first reference signal;

Optionally, as an embodiment, in a case where the rate matching device is in a non-connected state, the PDSCH is scheduled by a first DCI, and the first DCI is scrambled by any one of:

SI-RNTI，P-RNTI，TC-RNTI，RA-RNTI，Msg.B-RNTI。

Optionally, as an embodiment, in a case that the first information includes the information for determining whether the first reference signal is available, the acquiring module 302 is configured to: determining whether the first reference signal is available according to at least one of:

paging PDCCH;

paging messages;

paging advance indication;

the paging advance indication indicates whether to monitor the paging PDCCH;

RRC or MAC CE;

DCI format 2_0 indicates that a first semi-static flexible symbol is set as a flexible symbol and/or an uplink symbol;

DCI indicates to perform uplink channel or signal transmission on the first semi-static flexible symbol;

wherein the first semi-static flexible symbol is configured with the first reference signal.

Optionally, as an embodiment, the obtaining module 302 is configured to at least one of:

determining whether the first reference signal is available according to the paging PDCCH includes: receiving the paging PDCCH when the rate matching device is in a connection state, wherein the paging PDCCH comprises an indication whether the first reference signal is available or not;

determining whether the first reference signal is available based on the paging message includes: receiving the paging message, the paging message including an indication of whether the first reference signal is available, if the rate matching device is in a connected state;

Determining whether the first reference signal is available based on the paging advance indication includes: receiving the paging advance indication when the rate matching device is in a connected state, wherein the paging advance comprises an indication indicating whether a first reference signal is available or not;

determining whether the first reference signal is available according to the RRC or MAC CE includes: the method further includes receiving the RRC or the MAC CE, the RRC or the MAC CE including an indication of whether the first reference signal is available, with the rate matching device in a connected state.

if the paging advance indication indicates monitoring of a paging PDCCH, determining that the first reference signal is available;

if the paging advance indication indicates not to monitor the paging PDCCH, it is determined that the first reference signal is not available.

Optionally, as an embodiment, setting the first semi-static flexible symbol to a flexible symbol and/or an uplink symbol according to the DCI format 2_0 indication, or determining whether the first reference signal is available according to the DCI indication on at least one of an uplink channel or signal transmission on the first semi-static flexible symbol includes:

And determining that the first reference signal is unavailable in the case that the DCI format 2_0 indicates that a first semi-static flexible symbol is set as a flexible symbol and/or an uplink symbol, or that the DCI indicates at least one of uplink channel or signal transmission is performed on the first semi-static flexible symbol.

Optionally, as an embodiment, in a case that the rate matching device is in a connected state, the first reference signal is used for at least one of the following:

time-frequency synchronization, CSI measurement, RRM measurement, radio link monitoring, beam failure detection, beam management, AGC, fast secondary cell activation.

Optionally, as an embodiment, the first reference signal includes at least one of: TRS, CSI-RS, PRS.

The apparatus 300 according to the embodiment of the present application may refer to the flow of the method 200 corresponding to the embodiment of the present application, and each unit/module in the apparatus 300 and the other operations and/or functions described above are respectively for implementing the corresponding flow in the method 200, and may achieve the same or equivalent technical effects, which are not described herein for brevity.

The rate matching device in the embodiment of the application can be a device, and can also be a component, an integrated circuit or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in particular.

The rate matching device in the embodiment of the application can be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not limited specifically.

The rate matching device provided by the embodiment of the application can realize each process realized by the method embodiment of fig. 2 and achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

Optionally, as shown in fig. 4, the embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and capable of running on the processor 401, where, for example, the communication device 400 is a terminal, the program or the instruction is executed by the processor 401 to implement each process of the foregoing rate matching method embodiment, and achieve the same technical effects.

Fig. 5 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 500 includes, but is not limited to: radio frequency unit 501, network module 502, audio output unit 503, input unit 504, sensor 505, display unit 506, user input unit 507, interface unit 508, memory 509, and processor 510.

Those skilled in the art will appreciate that the terminal 500 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 510 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 5 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain 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 504 may include a graphics processor (Graphics Processing Unit, GPU) 5041 and a microphone 5042, the graphics processor 5041 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 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes a touch panel 5071 and other input devices 5072. Touch panel 5071, also referred to as a touch screen. Touch panel 5071 may include two parts, a touch detection device and a touch controller. Other input devices 5072 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 a network side device, the radio frequency unit 501 processes the downlink data with the processor 510; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 509 may be used to store software programs or instructions as well as various data. The memory 509 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction 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. In addition, the Memory 509 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

Processor 510 may include one or more processing units; alternatively, the processor 510 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 510.

The radio frequency unit 501 is configured to obtain first information, where the first information includes at least one of the following: information for determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, first configuration information; wherein the first configuration information is used for configuring the first reference signal; and a processor 510, configured to determine whether to perform rate matching of a physical downlink control channel PDSCH on the first reference signal according to the first information, where the first reference signal is configured for use by a non-connected terminal.

In the embodiment of the application, the terminal acquires first information, wherein the first information comprises at least one of the following: information determining whether a first reference signal is available, a first reference signal available duration, a first reference signal unavailable duration, first configuration information for configuring the first reference signal; and determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for the non-connected terminal. The embodiment of the application provides a solution for judging whether the terminal can perform the rate matching of the PDSCH aiming at the first reference signal resource, avoids the problems of transmission, interference and the like caused by inconsistent understanding of the terminal and network side equipment, and improves the communication reliability.

The terminal 500 provided in the embodiment of the present application may further implement each process of the foregoing rate matching method embodiment, and may achieve the same technical effects, so that repetition is avoided and no further description is given here.

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 rate matching method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

The processor may be a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

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 above-mentioned rate matching method embodiment, and can achieve the same technical effects, 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.

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 software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side 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 rate matching method applied to a terminal, the method comprising:

acquiring first information, wherein the first information comprises at least one of the following: information for determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, first configuration information; wherein the first configuration information is used for configuring the first reference signal; the first reference signal includes at least one of: tracking a reference signal TRS, a channel state information reference signal CSI-RS and a positioning reference signal PRS;

and determining whether to perform rate matching of a physical downlink control channel (PDSCH) on the first reference signal according to the first information, wherein the first reference signal is configured for a non-connected terminal.

2. The method of claim 1, wherein, if the first information includes the information that determines whether a first reference signal is available, the determining whether to perform rate matching of PDSCH for the first reference signal based on the first information comprises at least one of:

3. The method of claim 1, wherein, if the first information includes the first reference signal available duration or the first reference signal unavailable duration, the determining whether to rate match PDSCH for the first reference signal based on the first information comprises at least one of:

4. The method of claim 1, wherein, in the case where the first information includes first configuration information, the determining whether to perform rate matching of PDSCH on the first reference signal according to the first information includes at least one of:

5. The method of claim 4, wherein upon receiving the first configuration information and the first information further comprising the information determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, the determining whether to rate match PDSCH for the first reference signal comprises at least one of:

6. The method of claim 1, wherein the PDSCH is scheduled by first downlink control information, DCI, when the terminal is in a non-connected state, the first DCI being scrambled by any one of:

System information radio network temporary identity SI-RNTI, paging radio network temporary identity P-RNTI, temporary cell radio network temporary identity TC-RNTI, random access radio network temporary identity RA-RNTI, message B radio network temporary identity Msg.B-RNTI.

7. The method of claim 1, wherein, in the case where the first information includes the information determining whether a first reference signal is available, the method further comprises: determining whether the first reference signal is available according to at least one of:

paging a Physical Downlink Control Channel (PDCCH);

paging messages;

paging advance indication;

the paging advance indication indicates whether to monitor the paging PDCCH;

a radio resource control RRC or a medium access control unit MAC CE;

8. The method of claim 7, wherein the determining whether the first reference signal is available comprises at least one of:

Determining whether the first reference signal is available according to the paging PDCCH includes: receiving the paging PDCCH under the condition that the terminal is in a connection state, wherein the paging PDCCH comprises an indication whether the first reference signal is available or not;

determining whether the first reference signal is available based on the paging message includes: receiving the paging message under the condition that the terminal is in a connection state, wherein the paging message comprises an indication whether the first reference signal is available or not;

determining whether the first reference signal is available based on the paging advance indication includes: receiving the paging advance indication under the condition that the terminal is in a connection state, wherein the paging advance indication comprises an indication whether the first reference signal is available or not;

determining whether the first reference signal is available according to the RRC or MAC CE includes: and receiving the RRC or the MAC CE when the terminal is in a connected state, wherein the RRC or the MAC CE comprises an indication whether the first reference signal is available or not.

9. The method of claim 7, wherein determining whether the first reference signal is available based on the paging advance indication indicating whether to monitor paging PDCCH comprises at least one of:

10. The method of claim 7, wherein setting a first semi-static flexible symbol to a flexible symbol and/or an uplink symbol according to the DCI format 2_0 indication, or wherein determining whether the first reference signal is available for at least one of uplink channel or signal transmission on the first semi-static flexible symbol according to the DCI indication comprises:

11. The method of claim 1, wherein the first reference signal is used for at least one of:

time-frequency synchronization, channel State Information (CSI) measurement, radio Resource Management (RRM) measurement, radio link monitoring, beam failure detection, beam management, automatic Gain Control (AGC) and quick secondary cell activation.

12. A rate matching device, comprising:

the device comprises an acquisition module for acquiring first information, wherein the first information comprises at least one of the following: information for determining whether a first reference signal is available, the first reference signal available duration, the first reference signal unavailable duration, first configuration information; wherein the first configuration information is used for configuring the first reference signal; the first reference signal includes at least one of: TRS, CSI-RS, PRS;

and the rate matching module is used for determining whether to perform rate matching of the PDSCH on the first reference signal according to the first information, wherein the first reference signal is configured for a non-connected state rate matching device.

13. The apparatus of claim 12, wherein, in the case where the first information includes the information that determines whether a first reference signal is available, the rate matching module is configured to at least one of:

14. The apparatus of claim 12, wherein, in the case where the first information includes the first reference signal available duration or the first reference signal unavailable duration, the rate matching module is configured to at least one of:

15. The apparatus of claim 12, wherein, in the case where the first information includes first configuration information, the rate matching module is configured to at least one of:

16. The apparatus of claim 15, wherein upon receiving the first configuration information, and wherein the first information further comprises the information determining whether a first reference signal is available, the first reference signal being available for a duration, the first reference signal not being available for any one of the durations, the rate matching module is configured to at least one of:

17. The apparatus of claim 12, wherein the PDSCH is scheduled by a first DCI scrambled by any one of:

SI-RNTI，P-RNTI，TC-RNTI，RA-RNTI，Msg.B-RNTI。

18. the apparatus of claim 12, wherein, in the case where the first information includes the information that determines whether a first reference signal is available, the means for obtaining is configured to: determining whether the first reference signal is available according to at least one of:

paging PDCCH;

paging messages;

paging advance indication;

the paging advance indication indicates whether to monitor the paging PDCCH;

RRC or MAC CE;

19. The apparatus of claim 18, wherein the acquisition module is configured to at least one of:

determining whether the first reference signal is available based on the paging advance indication includes: receiving the paging advance indication when the rate matching device is in a connected state, wherein the paging advance indication comprises an indication whether the first reference signal is available or not;

20. The apparatus of claim 18, wherein the acquisition module is configured to at least one of:

21. The apparatus of claim 18, wherein setting a first semi-static flexible symbol to a flexible symbol and/or an uplink symbol according to the DCI format 2_0 indication, or wherein determining whether the first reference signal is available for at least one of uplink channel or signal transmission on the first semi-static flexible symbol according to the DCI indication comprises:

22. The apparatus of claim 12, wherein the first reference signal is for at least one of:

23. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the rate matching method of any of claims 1 to 11.

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, implements the rate matching method according to any of claims 1 to 11.