CN110972281A

CN110972281A - Method and device for detecting control channel

Info

Publication number: CN110972281A
Application number: CN201811142573.2A
Authority: CN
Inventors: 王俊伟; 张兴炜; 黎超; 温容慧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-09-28
Filing date: 2018-09-28
Publication date: 2020-04-07
Also published as: WO2020063922A1

Abstract

The embodiment of the application discloses a method and a device for detecting a control channel, which are used for meeting the transmission requirements of different types of data. The method comprises the following steps: the access network equipment configures at least one control channel resource set and at least two detection opportunities for the terminal equipment; each control channel resource set in at least one control channel resource set corresponds to one or more control channels, and each detection opportunity in at least two detection opportunities is different; the access network equipment sends scheduling information to the terminal equipment through one or more control channels corresponding to each control channel resource set in at least one control channel resource set. The terminal equipment receives the configuration information of at least one control channel resource set and the configuration information of at least two detection occasions, and detects one or more control channels corresponding to each control channel resource set according to the at least two detection occasions.

Description

Method and device for detecting control channel

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a method and a device for detecting a control channel.

Background

In the communication system, the process of the network device transmitting data to the terminal device may include: the network device first transmits a Physical Downlink Control Channel (PDCCH) including Downlink Control Information (DCI) to the terminal device, and then transmits data to the terminal device. On the terminal device side, the terminal device may first blindly detect a PDCCH issued by the network device in a search space (search space) configured by the network device, demodulate DCI in the PDCCH, and then receive data (including broadcast messages, paging, data of the terminal device, and the like) belonging to the terminal device on a corresponding resource location according to the demodulated DCI. As can be seen from the process, the time interval (or frequency) for the network device to send the PDCCH affects the time interval for the data to reach the terminal device, and the shorter the time interval for the network device to send the PDCCH, the shorter the time interval for the data to reach the terminal device; on the contrary, the longer the time interval of data reaching the terminal device, and the time interval of the network device sending the PDCCH affects the reception power consumption of the terminal device, the smaller the time interval of the PDCCH sent by the network device is, the more times the terminal device needs to detect the PDCCH in unit time, and thus the larger the consumed reception power is, and vice versa.

Currently, the transmission quality requirements for different data are different. For example, high-reliability low-latency communication (URLLC) data requires low latency, high reliability, etc. (e.g., latency requires 1ms or 0,5ms or less, reliability requires 99.999% packet accuracy), enhanced mobile bandwidth (eMBB) data requires relatively low latency (e.g., latency requires 4ms or more, reliability requires 90% packet accuracy). Therefore, in order to meet the transmission delay of different data, the frequency of blind detection of the PDCCH for scheduling URLLC data by the terminal device is fast, while the frequency of blind detection of the PDCCH for scheduling eMBB data may be relatively slow.

However, conventionally, for different data, the search spaces configured for the terminal device by the network device are the same, that is, the frequency of blind detection of the PDCCH for scheduling URLLC data by the terminal device is the same as the frequency of blind detection of the PDCCH for scheduling eMBB. At this time, the frequency of blind detection of the PDCCH by the terminal equipment is set according to the high delay requirement of eMBB data, and the low delay requirement of the URLLC data is not met; or the frequency of blind detection of the PDCCH by the terminal device is set according to the low delay requirement of URLLC data, which wastes the detection resources of the eMBB.

Disclosure of Invention

The embodiment of the application provides a method and a device for detecting a control channel, so as to meet the transmission requirements of different types of data.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, a method for detecting a control channel is provided, the method including: the access network equipment configures at least one control channel resource set and at least two detection occasions for the terminal equipment, and sends scheduling information to the terminal equipment through one or more control channels corresponding to each control channel resource set in the at least one control channel resource set; wherein each control channel resource set in the at least one control channel resource set corresponds to one or more control channels; each of the at least two detection occasions is different, and each detection occasion is used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set.

It should be noted that the scheduling information described in the embodiment of the present application may be used for scheduling service data, for example: which may be DCI, control channels refer to control channels that carry scheduling information, which are based on the configuration of a particular terminal equipment (UE). For example, the names of the control channels carrying different service scheduling information may be the same, such as: all may be named PDCCH, or names of control channels carrying different service scheduling information may also be different, such as: the control channel for scheduling eMBB service is named PDCCH, and the control channel for scheduling URLLC service is named newPDCCH. The configuration information of the control channel resource set and the configuration information of the detection time described in the embodiment of the present application may be carried in the same configuration message and configured to the terminal, or the control channel resource set may be configured first and then the detection time is configured, or the control channel resource set may be configured after the detection time is configured first without limitation.

Based on the method provided in the first aspect, different detection occasions may be configured for the terminal device, so that the terminal device detects one or more control channels according to the different detection occasions, for example: the detection frequency of the control channel corresponding to the data with low time delay requirement can be set to be higher, and the detection frequency of the control channel corresponding to the data with low time delay requirement can be set to be lower, so that the transmission requirements of different types of data are met. Meanwhile, for different detection occasions, the control channel can be detected by using a specific RNTI or/and a demodulation format, so that the receiving power consumption of the terminal equipment is saved.

In one possible design, the method includes: the access network equipment configures first parameter information for the terminal equipment; the first parameter information is used to indicate a processing format of at least one control channel of the one or more control channels, where the processing format includes a coding format and/or a modulation format, and the processing format of one or more control channels corresponding to each control channel resource set in the at least one control channel resource set is different. Based on the method, the coding formats/modulation formats of different control channels can be indicated for the terminal equipment, so that the terminal equipment can detect the control channels according to the indicated coding formats and/or modulation formats. Meanwhile, the accuracy of scheduling data can be ensured due to the fact that the coding formats and/or the modulation formats of different control channels are different.

In one possible design, the method further includes: the access network equipment sends indication information to the terminal equipment; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled by the scheduling information. Based on the method, the terminal equipment can adjust the receiving bandwidth according to the indication by indicating the bandwidth of the transmitted data to the terminal equipment, so that the receiving bandwidth of the terminal equipment is not too large, and the receiving power consumption of the terminal equipment is reduced.

In one possible design, at least two detection occasions correspond to high-reliability and low-latency communication (URLLC) traffic and enhanced mobile bandwidth (eMBB) traffic, respectively. Based on the method, different detection occasions can be configured for the URLLC service and the eMBB service, so that the terminal equipment detects and schedules the control channel of the URLLC service and the control channel of the eMBB service at different detection occasions, and the detection is ensured to meet the transmission quality requirement of data.

In one possible design, the scheduling information for scheduling the eMBB service is scrambled by using a cell radio network temporary identifier (C _ RNTI), and the scheduling information for scheduling the URLLC service is scrambled by using an MCS-C-RNTI. Based on the method, different RNTIs can be adopted for scrambling aiming at scheduling information of the URLLC service or the eMBB service.

In one possible design, the detection period of URLLC traffic is shorter than the detection period of eMBB traffic. Based on the method, the detection frequency of the control channel corresponding to the URLLC service can be set to be higher, the low delay requirement of the URLLC service is met, and for the eMBB service, the detection frequency of the control channel corresponding to the eMBB service is set to be lower, so that detection resources are not wasted.

In a possible design, when one or more control channels corresponding to each control channel resource set in at least one control channel resource set need to be retransmitted, the multiplexing relationship between the retransmission resources and the initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship. Based on the method, some control channels can be retransmitted, so that the reliability of data scheduled by the control channels is ensured; meanwhile, the multiplexing relationship between the retransmission resources and the initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship, and when the retransmission resources and the initial transmission resources adopt the inter-carrier frequency division multiplexing, the frequency division diversity effect can be improved; when the retransmission resources and the initial transmission resources are subjected to intra-carrier frequency division multiplexing, the receiving bandwidth of the terminal equipment can be reduced, and further the receiving power of the terminal equipment is reduced.

In a second aspect, a method for detecting a control channel is provided, the method comprising: the terminal equipment receives configuration information of at least one control channel resource set and configuration information of at least two detection occasions, and detects one or more control channels corresponding to each control channel resource set according to the at least two detection occasions; wherein each set of control channel resources in the at least one set of control channel resources corresponds to one or more control channels; each of the at least two detection occasions is different, and each detection occasion is used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set.

Based on the method provided in the second aspect, the terminal device may detect one or more control channels according to different detection occasions, such as: the fast point which can be detected by the control channel corresponding to the data with low time delay requirement and the slow point which can be detected by the detection frequency of the control channel corresponding to the data with low time delay requirement meet the transmission requirements of different service data

In one possible design, the method further includes: the terminal equipment acquires first parameter information; the first parameter information is used for indicating a processing format of at least one control channel in the one or more control channels, the processing format includes a coding format and/or a modulation format, and the processing format of one or more control channels corresponding to each control channel resource set in the at least one control channel resource set is different; the method for detecting one or more control channels corresponding to each control channel resource set by the terminal device according to at least two detection occasions includes: and the terminal equipment detects one or more control channels according to the processing format indicated by the first parameter information at least two detection occasions. Based on the method, the coding formats/modulation formats of different control channels can be indicated for the terminal equipment, so that the terminal equipment can detect the control channels according to the indicated coding formats and/or modulation formats. Meanwhile, the accuracy of scheduling data can be ensured due to the fact that the coding formats and/or the modulation formats of different control channels are different.

In one possible design, the method further includes: the terminal equipment receives the indication information; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled to the terminal equipment by the access network equipment. Based on the method, the terminal equipment can adjust the receiving bandwidth according to the indication, the receiving bandwidth of the terminal equipment is not overlarge, and the receiving power consumption of the terminal equipment is reduced.

In one possible design, at least two detection occasions correspond to URLLC traffic and eMBB traffic, respectively. Based on the method, different detection occasions can be configured for the URLLC service and the eMBB service, so that the terminal equipment detects and schedules the control channel of the URLLC service and the control channel of the eMBB service at different detection occasions, and the detection is ensured to meet the transmission quality requirement of data.

In one possible design, a control channel corresponding to the eMB service is detected by using a cell radio network temporary identifier (C _ RNTI); and the control channel corresponding to the URLLC service is detected by adopting a modulation and coding strategy cell radio network temporary identifier MCS-C-RNTI. Based on the method, different RNTIs can be adopted for the URLLC service and the eMBB service for descrambling,

In a third aspect, an embodiment of the present invention provides an apparatus for detecting a control channel, where the apparatus has a function of implementing an access network device behavior in the foregoing method. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions.

In one possible design, the access network device includes a processor and a transceiver in its structure, and the processor is configured to support the access network device to perform the corresponding functions in the above method. The transceiver is used for supporting communication between the access network device and the terminal device, and transmitting the information or the instruction related in the method to the terminal device. The access network device may also include a memory, coupled to the processor, that stores program instructions and data necessary for the access network device.

In a fourth aspect, an embodiment of the present invention provides an apparatus for detecting a control channel, where the apparatus has a function of implementing a behavior of a terminal device in the above method design. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above-described functions. The modules may be software and/or hardware.

In one possible design, the terminal device has a structure including a transceiver and a processor, and the transceiver is configured to support the terminal device to receive configuration information of at least one control channel resource set and configuration information of at least two detection occasions. And the processor controls the terminal equipment to detect one or more control channels corresponding to each control channel resource set according to at least two detection occasions.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, which includes a unit, a module, or a circuit configured to perform the method provided in the above first aspect or each possible implementation manner of the first aspect. The communication device may be an access network device, or may be a module applied to the access network device, for example, a chip applied to the access network device.

In a sixth aspect, embodiments of the present application provide a communication apparatus, which includes a unit, a module, or a circuit for performing the method provided in the second aspect or each possible implementation manner of the second aspect. The communication device may be a terminal device, or may be a module applied to the terminal device, for example, a chip applied to the terminal device.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium for storing a computer program or instructions, which when run on a computer, causes the computer to perform the method of any one of the above first aspects.

In an eighth aspect, embodiments of the present application provide a computer-readable storage medium for storing a computer program or instructions, which when run on a computer, causes the computer to perform the method of any one of the above second aspects.

In a ninth aspect, embodiments of the present application provide a computer program product, which when run on a computer causes the computer to perform the method according to any one of the above first aspects.

In a tenth aspect, embodiments of the present application provide a computer program product, which when run on a computer causes the computer to perform the method according to any of the second aspects above.

Drawings

Fig. 1 is a schematic configuration diagram of a control channel resource set according to an embodiment of the present application;

fig. 2 is a schematic configuration diagram of a detection opportunity provided in the embodiment of the present application;

FIG. 3 is a simplified diagram of a system architecture according to an embodiment of the present application;

fig. 4 is a flowchart of a method for detecting a control channel according to an embodiment of the present application;

fig. 5 is a flowchart of a method for detecting a control channel according to an embodiment of the present application;

fig. 6a is a schematic diagram of a search space for URLLC data and eMBB data according to an embodiment of the present application;

fig. 6b is a schematic diagram of another search space for URLLC data and eMBB data according to the embodiment of the present application;

fig. 7a is a schematic diagram of inter-carrier frequency division multiplexing according to an embodiment of the present application;

fig. 7b is a schematic diagram of intra-carrier frequency division multiplexing according to an embodiment of the present application;

fig. 7c is a schematic diagram illustrating that retransmission resources and initial transmission resources are the same in time division multiplexing according to the embodiment of the present application;

fig. 7d is a schematic diagram illustrating that retransmission resources and initial transmission resources are different in time division multiplexing according to the embodiment of the present application;

fig. 8 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a communication device according to an embodiment of the present application;

fig. 10 is a schematic diagram of another communication device provided in the embodiment of the present application;

fig. 11 is a schematic diagram of another communication device according to an embodiment of the present application.

Detailed Description

First, in order to facilitate understanding of the embodiments of the present application, some terms related to the embodiments of the present application are described:

control channel resource set: may be referred to as a control resource set (CORESET), which corresponds to one or more control channels (e.g., PDCCH). In this embodiment, the one or more control channels corresponding to the control channel resource set may refer to: the set of control channel resources may be occupied (or used) by one or more control channels.

The set of control channel resources may include any one or more of the following configuration information: frequency domain resources (frequency domain resources) that the control channel may occupy, time domain duration (duration) that the control channel may occupy, and so on. The time domain duration may be referred to as a time domain resource, the time domain resource is continuous, and the time domain resource may be in units of Orthogonal Frequency Division Multiplexing (OFDM) symbols (symbols for short).

Illustratively, the set of control channel resources may include 1 symbol or 2 symbols or 3 symbols, etc. as shown in fig. 1. The control channel resource set may be identified by a control channel resource set Identifier (ID), and the control channel resource set IDs corresponding to different control channel resource sets may be different. Such as: a control channel resource set comprising 1 symbol may be identified with control channel resource set1 and a control channel resource set comprising 2 symbols may be identified with control channel resource set 2.

Detection timing: which may be referred to as search space (search space) or time opportunity for transmitting/receiving a control channel, defines a range and opportunity (opportunity) for a terminal device to detect a control channel (e.g., PDCCH), and the detection opportunity may include any one or more of the following configuration information: the control channel resource set identifier, detection period and offset (monitoring slot periodicity and offset), the number of slots (slots) monitored continuously, and the symbol position monitored in one slot. It should be noted that the detection opportunity described in the embodiment of the present application may refer to not only one detection opportunity, but also a detection opportunity pattern including a plurality of detection opportunity points, and a detection opportunity point may refer to an opportunity point for detecting a control channel.

Wherein the control channel resource set identification is as previously described. The detection period may be used to specify how often (or how many consecutive slots) the terminal device listens to the control channel, and the offset may refer to an offset between a starting slot where the terminal device first listens to the control channel and the 0 th slot (i.e., slot 0). The number of slots (slots) to be monitored continuously may be referred to as a monitoring length (duration), which may mean that the terminal device needs to monitor the control channel in several slots continuously at a time. The symbol position monitored in one slot may be referred to as a detection position in the slot, and may be used to instruct the terminal device to start monitoring the control channel from which symbols in one slot.

For example, taking the control channel as PDCCH and the slot including 14 symbols as an example, it is assumed that the configuration information of the detection opportunity is: the control channel resource set indicated by the control channel resource set identifier includes 2 symbols (that is, the PDCCH may occupy 2 symbols), the detection period is 5 slots, the offset is 0slot, the number of slots monitored continuously is 2 times, the symbol position in each slot where to start monitoring the PDCCH is the 1 st symbol (that is, symbol 0) and the 8 th symbol (that is, symbol 7), and then in the nine slots from slot0 to slot9 shown in fig. 2, 5 slots are used as one detection period, and coexist in two detection periods: the first detection period from slot0 to slot4 and the second detection period from slot5 to slot9 are the first detection period, in the first detection period, the terminal device may monitor the PDCCH at

slots

0 and 1, and in the second detection period, the terminal device may monitor the PDCCH at

slots

5 and 6. The detection positions for starting to detect the PDCCH in each monitored slot are symbol 0 and symbol 7, and the PDCCH may continuously occupy 2 symbols. Taking the example that the terminal device can monitor the PDCCH on slot5, as shown in fig. 2, the terminal device can monitor the PDCCH on symbol 0, symbol 1, symbol 7, and symbol 8 of slot 5.

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The method for detecting a control channel provided in the embodiment of the present application may be applied to the communication system shown in fig. 3, where the communication system may be a Long Term Evolution (LTE) system, and may also be a fifth generation (5)^thgeneration, 5G) mobile communication system or new radio (NG) system, and may be other mobile communication systems, without limitation. As shown in fig. 3, the communication system may include an access network device and a terminal device, where the terminal device may wirelessly transmit different types of data (e.g., URLLC data or eMBB data) to the access network device. For example, the access network device may send a control channel (e.g., PDCCH) to the terminal device, where the control channel may include Downlink Control Information (DCI), and the terminal device may detect the control channel sent by the access network device according to the specification of the search space, and receive data sent by the access network device to the terminal device on a scheduling resource indicated by the DCI included in the control channel. It should be noted that fig. 3 is only an exemplary frame diagram, and the number of devices included in fig. 3 is not limited, except forBesides the functional nodes shown in fig. 3, the system shown in fig. 3 may also include other nodes, such as: core network devices, gateway devices, application servers, etc., without limitation.

For example, the terminal device in fig. 3 may be referred to as a terminal (terminal) or a User Equipment (UE), or a Mobile Station (MS), or a mobile terminal device (MT), etc., and may be deployed on the water surface (e.g., a ship, etc.); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). Specifically, the mobile phone may be a mobile phone (mobile phone), a tablet computer, or a computer with a wireless transceiving function. The terminal device may also be a Virtual Reality (VR) terminal, an Augmented Reality (AR) terminal, a wireless terminal device in industrial control, a wireless terminal device in unmanned driving, a wireless terminal device in telemedicine, a wireless terminal device in a smart grid, a wireless terminal device in a smart city (smart city), a wireless terminal device in a smart home (smart home), and so on. In this embodiment of the present application, the apparatus for implementing the function of the terminal device may be the terminal device, or may be an apparatus capable of supporting the terminal device to implement the function, for example, a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices. In the technical solution provided in the embodiment of the present application, a device for implementing a function of a terminal device is taken as an example of a terminal device, and the technical solution provided in the embodiment of the present application is described.

The access network device in fig. 3 may be referred to as a network device, and is mainly used for implementing functions such as a radio physical control function, resource scheduling and radio resource management, radio access control, and mobility management. Specifically, the access network device may be AN Access Network (AN)/Radio Access Network (RAN) device, or may also be a device composed of a plurality of 5G-AN/5G-RAN nodes, or may be any one of a base station (nodeB, NB), AN evolved base station (eNB), a next generation base station (generational nodeB, gNB), a transmission point (TRP), a Transmission Point (TP), and some other access node. In this embodiment of the present application, the apparatus for implementing the function of the access network device may be an access network device, or may be an apparatus capable of supporting the access network device to implement the function, for example, a chip system. In the technical solution provided in the embodiment of the present application, taking an example that a device for implementing a function of an access network device is an access network device, the technical solution provided in the embodiment of the present application is described.

In the system shown in fig. 3, the access network device may configure a control channel resource set and a detection opportunity for the terminal device in advance, so that the terminal device detects different control channels according to different detection opportunities. Specifically, as shown in fig. 4, the method may include S401 to S404:

s401: the access network device configures at least one control channel resource set for the terminal device.

The terminal device may be any terminal device in the system shown in fig. 3. The relevant description of the control channel set and the configuration information are as previously described. Each set of at least one control channel resource corresponds to one or more control channels.

For example, the QoS requirements of the data scheduled by the control channels corresponding to different sets of control channel resources may be different. In the embodiments of the present application, the QoS requirement may be referred to as a transmission quality requirement, and may include any one or more of the following requirements: transmission delay, transmission reliability, transmission rate, transmission error rate, Modulation and Coding Scheme (MCS) index table used in demodulation/modulation, and the like. .

For example, configuring, by the access network device, at least one control channel resource set for the terminal device may refer to: the access network device configures one control channel resource set, or configures two control channel resource sets, or three control channel resource sets, etc. for the terminal device.

In this embodiment, the access network device may configure at least one control channel resource set for the terminal device through high-layer signaling. The higher layer signaling may be Radio Resource Control (RRC) signaling, and the access network device may carry configuration information of at least one control channel resource set in the RRC signaling and send the configuration information to the terminal device.

S402: and the access network equipment configures at least two detection opportunities for the terminal equipment.

For example, the configuration of the at least two detection occasions for the terminal device by the access network device may refer to: the access network device configures two detection occasions, or three detection occasions, or four detection occasions for the terminal device, and the like.

The at least two detection occasions may respectively correspond to the URLLC service and the eMBB service, each of the at least two detection occasions may be different, and each detection occasion may be used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set. Such as: assume that the access network device configures two sets of control channel resources for the terminal device: CORESET1, CORESET2, three detection occasions: the terminal device can detect the control channel in the CORESET1 according to the detection time 1, detect the control channel in the CORESET1 according to the detection time 2, and detect the control channel in the CORESET2 according to the detection time 3 from the detection time 1 to the detection time 3.

In this embodiment, the access network device may also configure at least two detection occasions for the terminal device through a high-level signaling. Such as: the access network device may carry the configuration information of the at least two detection occasions in the RRC signaling and send the configuration information to the terminal device, or may notify the configuration information of the at least two detection occasions to the terminal device in another manner, which is not limited in this application.

It should be noted that the embodiment of the present application does not limit the execution sequence of S401 and S402, and S401 and S402 may be executed successively as shown in fig. 4; or executing S402 first and then executing S401; s401 and S402 may also be executed simultaneously, such as: the access network device may carry the configuration information of the at least one control channel resource set and the configuration information of the at least two detection occasions in the RRC signaling and send the RRC signaling together to the terminal device.

S403: and the access network equipment sends scheduling information to the terminal equipment through one or more control channels corresponding to each control channel resource set in at least one control channel resource set.

Taking an example that the access network device sends the scheduling information to the terminal device through one control channel corresponding to one control channel resource set, the sending, by the access network device, the scheduling information to the terminal device through one control channel corresponding to the control channel resource set may include: the access network equipment generates scheduling information (such as DCI) used for scheduling data, performs Cyclic Redundancy Check (CRC) check, RNTI scrambling, channel coding, modulation, resource mapping and other processing on the DCI to obtain a control channel, sends the control channel to the terminal equipment in a control channel resource set, and sends the data to the terminal equipment at a time-frequency resource position indicated by the DCI. Specifically, the processing procedures of CRC check, RNTI scrambling, channel coding, modulation, resource mapping, etc. refer to the prior art and are not described in detail.

In the embodiment of the present application, RNTIs used when the scheduling information corresponding to data with different QoS requirements is scrambled may be different or the same. Illustratively, C _ RNTI scrambling is adopted when RNTI scrambling is carried out on scheduling information for scheduling eMBB service, and MCS-C-RNTI scrambling is adopted when RNTI scrambling is carried out on scheduling information for scheduling URLLC service.

S404: and the terminal equipment detects one or more control channels corresponding to each control channel resource set according to the at least two detection occasions.

For example, the terminal device may process, in a detection period configured by the detection timer, the DCI included in the demodulation control channel on the resource corresponding to the control channel resource set through resource demapping, demodulation, channel decoding, RNTI descrambling, CRC checking, and the like. Illustratively, the terminal device performs RNTI descrambling on a control channel corresponding to the emblc service by using the C _ RNTI, and performs RNTI descrambling on a control channel corresponding to the URLLC service by using the MCS-C-RNTI.

Based on the method shown in fig. 4, different detection occasions can be configured for the terminal device, so that the terminal device can detect one or more control channels according to the different detection occasions, such as: the detection frequency of the control channel corresponding to the data with low time delay requirement can be set to be higher, and the detection frequency of the control channel corresponding to the data with low time delay requirement can be set to be lower, so that the transmission requirements of different service data are met.

Further, in the method shown in fig. 4, the method may further include:

the access network equipment configures first parameter information for the terminal equipment, and the terminal equipment acquires the first parameter information.

The access network device may configure the first parameter information for the terminal through RRC signaling, where the first parameter information may be configured to the terminal device together with the configuration information in S401 and/or S402.

The first parameter information may be used to indicate a processing format of at least one of the one or more control channels, such as: the processing format may be for one control channel of one or more control channels, or two control channels, or three, four, etc. The processing format may include a coding format and/or a modulation format, and the processing format of the one or more control channels may be different or the same. Illustratively, the processing formats for the control channels that schedule data for different QoS requirements are different. Such as: the scheduling information for scheduling the eMBB service is modulated by Quadrature Phase Shift Keying (QPSK), and the scheduling information for scheduling the URLLC service can adopt a modulation mode with better demodulation performance than the QPSK, such as: binary Phase Shift Keying (BPSK) modulation. Or, the scheduling information for scheduling the URLLC service may be modulated in a BPSK modulation manner, and the scheduling information for scheduling the eMBB service adopts a default modulation manner.

In this way, the terminal device can detect the control channel according to the processing format indicated by the first parameter information when the detection time specified by at least two detection times arrives, thereby improving the accuracy and efficiency of control channel detection.

Further, in the method shown in fig. 4, the method may further include:

the access network equipment sends the indication information to the terminal equipment, and the terminal equipment receives the indication information sent by the access network equipment.

The indication information may be used to indicate a maximum bandwidth occupied by data invoked by the control channel, where the bandwidth may not be greater than a bandwidth of a control channel resource set including the control channel.

Therefore, the terminal equipment can adjust the receiving power of the receiver according to the bandwidth indicated by the access network equipment, receive the data sent by the access network equipment and reduce the receiving power consumption of the terminal equipment.

Further, in the method shown in fig. 4, the method may further include:

when one or more control channels corresponding to each control channel resource set in at least one control channel resource set need to be retransmitted, the multiplexing relationship between the retransmission resources and the initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship.

Illustratively, if the reliability requirement of the data scheduled by the control channel is high, the control channel needs to be retransmitted.

The retransmission resource and the initial transmission resource adopt inter-carrier frequency division, which can mean: the retransmission resource and the initial transmission resource may be different carriers, or bandwidth parts (BWPs) on different carriers; therefore, the initial transmission control channel and the retransmission control channel are configured on different carriers, the frequency domain interval of the initial transmission resource and the retransmission resource is larger, and the frequency division diversity effect is improved.

The retransmission resource and the initial transmission resource adopt intra-carrier frequency division multiplexing, which can mean: the retransmission resource and the initial transmission resource may be different frequency bands in the same carrier, or different BWPs on the same carrier. Therefore, the initial transmission control channel and the retransmission control channel are configured on the same carrier, the frequency domain interval of the initial transmission resource and the retransmission resource is smaller, the receiving bandwidth of the terminal equipment is reduced, and the receiving power consumption of the terminal equipment is reduced.

Taking the control channel resource set as CORESET, taking the detection time as a search space, and configuring two CORESETs for the terminal equipment by the access network equipment: the first CORESET and the second CORESET configure two search spaces for the terminal equipment: the method shown in fig. 4 is described with reference to a first search space and a second search space, where the first CORESET corresponds to a first control channel, the second CORESET corresponds to a second control channel, the first control channel is used for scheduling data of URLLC service (URLLC data for short), and the second control channel is used for scheduling data of eMBB service (eMBB data for short).

The transmission delay, the transmission reliability, the transmission rate and the transmission error rate of the URLLC data are different from those of the eMBB data. Illustratively, the transmission delay of URLLC data is less than or equal to 1ms, and the transmission block error rate is 0.00001. The transmission delay of the eMBB data is less than or equal to 4ms, and the transmission block error rate is 0.1. It should be noted that, in the embodiment of the present application, only the eMBB data and the URLLC data are taken as examples for description, and the configuration of the method for configuring the CORESET and the search space corresponding to other different types of data may also refer to the method provided in the embodiment of the present application, for example: machine-type communication (MTC) data has different QoS requirements compared to eMBB data, and voice data has different QoS requirements compared to data, and when configuring the CORESET of the control channel and the method of searching the space corresponding to these data, configuration may also be performed according to the QoS requirements of the data.

In order to better understand the technical solution of the present application, the control channel resource set takes a first CORESET and a second CORESET as an example, and the detection timing takes a first search space and a second search space as an example for description, as shown in fig. 5, a flowchart of a method for detecting a control channel provided in the embodiment of the present application may include S501 to S504.

S501: and the access network equipment configures a first CORESET and a second CORESET for the terminal equipment.

Wherein, the first CORESET and the second CORESET can be the same or different. For example, the time domain length of the first CORESET may be 2 symbols, and the time domain length of the second CORESET may be 3 symbols.

S502: and the access network equipment configures a first search space and a second search space for the terminal equipment.

Wherein the first search space may be used for the terminal device to detect the first control channel. The second search space may be used for the terminal device to detect a second control channel.

To meet the transmission quality requirements of URLLC data and eMBB data, the first search space is different from the second search space. Illustratively, because the URLLC data requires low delay, the detection period in the first search space configured for the URLLC data is relatively short, and relatively, the eMBB data does not have high requirement for delay, and the detection period in the second search space configured for the eMBB data may be slightly longer, that is, the detection period of the URLLC data is shorter than the detection period of the eMBB data.

It should be noted that the execution order of S501 and S502 is not limited in the embodiment of the present application, and S501 and S502 may be executed successively as shown in fig. 5; or the step of executing S502 first and then executing S501; s501 and S502 may also be performed simultaneously.

S503: and the access network equipment sends scheduling information to the terminal equipment through a first control channel corresponding to the first CORESET or a second control channel corresponding to the second CORESET.

What control channel the access network device sends to the terminal device and what type of data is scheduled are determined by the access network device, and these pieces of information are unknown to the terminal device and need to be known by detecting the control channel.

As described above, taking the case that the access network device sends the scheduling information for scheduling the URLLC data to the terminal device through the first control channel corresponding to the first CORESET as an example, the access network device may generate DCI for scheduling the URLLC data, perform processing on the DCI such as CRC check, RNTI scrambling, channel coding, modulation, resource mapping, and the like to obtain the first control channel, send the first control channel to the terminal device included in the first CORESET, and send the URLLC data to the terminal device at the time-frequency resource position indicated by the DCI. The access network device may send the first control channel to the terminal device first, and then send URLLC data to the terminal device. For example, the time interval between the sending of the first control channel and the URLLC data by the access network device may be longer than the time length for the first control channel successfully demodulated by the terminal device.

S504: and the terminal equipment detects a first control channel corresponding to the first CORESET or a second control channel corresponding to the second CORESET in the first search space or the second search space.

Illustratively, when the detection opportunity of the first control channel arrives, the terminal device detects the first control channel according to the configuration of the first search space, such as: and demodulating DCI included in the first control channel on the resources configured by the first CORESET through processing such as resource demapping, demodulation, channel decoding, RNTI descrambling, CRC checking and the like. When the detection opportunity of the second control channel arrives, the terminal device detects the second control channel according to the configuration of the second search space, such as: and demodulating DCI included in the second control channel on the resources configured by the second CORESET through processing such as resource demapping, demodulation, channel decoding, RNTI descrambling, CRC checking and the like.

Because the transmission quality requirement of URLLC data is higher than that of eMBB data, when the terminal device detects the first control channel according to the configuration of the first search space, it may start more computing resources to detect the first control channel, such as: 1) more computing unit numbers are enabled, such as: additionally starting a Digital Signal Processing (DSP) core to perform data processing; 2) the operation frequency is increased by using the frequency increasing technology. Such as: the operating frequency is typically 800MHz, and when the first control channel is detected, the frequency is increased to 1.5 GHz; 3) borrowing operation resources: borrow the computing resources of other carriers or systems, etc. When the terminal device detects the second control channel according to the configuration of the second search space, it may start less computing resources to detect the second control channel, such as: putting the DSP core in a dormant or non-powered state, and the like.

It should be noted that, if the first detection opportunity overlaps with the second detection opportunity, that is, when the detection timing of the first control channel arrives, the terminal device preferentially detects the control channel scheduling data with higher transmission quality requirement, for example: the first control channel will be detected preferentially to take into account the low latency requirement of URLLC data.

Subsequently, when the terminal device successfully demodulates the first control channel according to the first search space, the terminal device receives URLLC data sent by the access network device according to the DCI included in the first control channel. Or, when the terminal device successfully demodulates the second control channel according to the second search space, the terminal device receives the eMBB data sent by the access network device according to the DCI included in the second control channel.

As shown in fig. 6a, taking an example that a slot includes 14 symbols, a PDCCH for scheduling URLLC data is PDCCH1, and a PDCCH for scheduling eMBB data is PDCCH2, assume that the CORESET configured by the access network device to the terminal device is: the time domain length in the CORESET of the eMBB data is 3 symbols, the time domain length in the CORESET corresponding to the URLLC data is 2 symbols, and the configuration of the search space corresponding to the eMBB data is as follows: the detection period is 5 slots, the offset is 0, the number of the slots which are monitored continuously is 1, and 1 detection initial symbol bit (the initial symbol is 0 symbol) is arranged in 1 slot; the configuration of the search space corresponding to the URLLC data is: the detection period of URLLC is 5 slots, the offset is 0, the number of slots to listen continuously is 2, 1 slot has 2 detection start sign bits (the start sign is 0 and 7 signs) built therein, then in fifteen slots from slot0 to slot14 as shown in fig. 6a, 5 slots are taken as one detection period, and coexist in three detection periods: the first detection period from slot0 to slot4, the second detection period from slot5 to slot9, and the third detection period from slots10 to slot 14. In the first detection period, the terminal device may monitor PDCCH1 on slot0, slot1, and may monitor PDCCH2 on slot 0. In the second detection period, the terminal device may monitor PDCCH1 on slot5, slot6, and may monitor PDCCH2 on slot 5. In the second detection period, the terminal device may monitor PDCCH1 on slot10, slot11, and may monitor PDCCH2 on slot 10. Since the detection positions for starting detecting PDCCH1 in the slot are symbol 0 and symbol 7, and PDCCH1 may continuously occupy 2 symbols, as shown in fig. 6a, when the terminal device monitors PDCCH1 on slot5, PDCCH1 may be monitored on symbol 0 and symbol 1, symbol 7 and symbol 8 in slot 5. While the terminal device is monitoring PDCCH1 on slot11, PDCCH1 may be monitored on symbol 0 and symbol 1, symbol 7 and symbol 8 within slot 11. Since the detection position for starting detecting PDCCH2 in slot is symbol 0, and PDCCH2 may continuously occupy 3 symbols, as shown in fig. 6a, when the terminal device monitors PDCCH2 in slot5, PDCCH2 may be monitored in symbol 0, symbol 1, and symbol 2 in slot 5.

As shown in fig. 6b, taking the slot including 14 symbols, the PDCCH scheduling URLLC data as PDCCH1, and the PDCCH scheduling eMBB data as PDCCH2 as examples, assuming that the CORESET corresponding to the eMBB data and the URLLC data configured by the access network device are both 2 symbols, the configuration of the search space corresponding to the eMBB data is as follows: the detection period is 5 slots, the offset is 0, the number of the slots which are monitored continuously is 1, and 1 detection initial symbol bit (the initial symbol is 0 symbol) is arranged in 1 slot; the configuration of the search space corresponding to the URLLC data is: the detection period of URLLC is 5 slots, the offset is 0, the number of slots to listen continuously is 2, 1 slot has 2 detection start sign bits (the start sign is 0 and 7 signs) built therein, then in fifteen slots from slot0 to slot14 as shown in fig. 6b, 5 slots are taken as one detection period, and coexist in three detection periods: the first detection period from slot0 to slot4, the second detection period from slot5 to slot9, and the third detection period from slots10 to slot 14. In the first detection period, the terminal device may monitor PDCCH1 on slot0, slot1, and may monitor PDCCH2 on slot 0. In the second detection period, the terminal device may monitor PDCCH1 on slot5, slot6, and may monitor PDCCH2 on slot 5. In the second detection period, the terminal device may monitor PDCCH1 on slot10, slot11, and may monitor PDCCH2 on slot 10. Since the detection positions for starting detecting PDCCH1 in the slot are symbol 0 and symbol 7, and PDCCH1 may continuously occupy 2 symbols, as shown in fig. 6b, when the terminal device monitors PDCCH1 on slot5, PDCCH1 may be monitored on symbol 0 and symbol 1, symbol 7 and symbol 8 in slot 5. While the terminal device is monitoring PDCCH1 on slot11, PDCCH1 may be monitored on symbol 0 and symbol 1, symbol 7 and symbol 8 within slot 11. Since the detection position for starting detecting PDCCH2 in slot is symbol 0, and PDCCH2 may continuously occupy 2 symbols, as shown in fig. 6b, when the terminal device monitors PDCCH2 on slot5, PDCCH2 may be monitored on symbol 0 and symbol 1 in slot5, and at this time, the detection timings of PDCCH1 and PDCCH2 are overlapped.

Based on the method shown in fig. 5, the search spaces corresponding to different service types are separately configured, the detection period of the search space configuration corresponding to the data with low delay requirement is long, the number of times of detecting the control channel can be effectively reduced, and meanwhile, the terminal can identify the type of the control channel corresponding to the search space according to the configuration information of the search space, so that the terminal can conveniently and centrally schedule the computing resources of the control channel or release some computing resources of the control channel, and the like.

Further, because the reliability requirement of the data of the URLLC service is higher relative to the reliable transmission of the eMBB data, the method shown in fig. 5 may further include:

and the access network equipment retransmits the first control channel to the terminal equipment.

The multiplexing relationship between the retransmission resource and the initial transmission resource of the first control channel may be, as described above, an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship, a time division multiplexing relationship, a frequency division multiplexing relationship, or the like. Optionally, the retransmission resource and the initial transmission resource use a time division multiplexing relationship, and the symbol lengths occupied by the retransmission resource and the initial transmission resource may be different.

For example, as shown in fig. 7a, intra-carrier frequency division multiplexing is adopted between the retransmission resource and the initial transmission resource, such as: the retransmission resource and the initial transmission resource are different frequency bands in the same BWP bandwidth, or the retransmission resource and the initial transmission resource are different frequency bands in the same carrier bandwidth. As shown in fig. 7b, inter-carrier frequency division multiplexing is adopted between the retransmission resource and the initial transmission resource, for example: the retransmission resource is positioned on the bandwidth of the carrier 2, and the initial transmission resource is positioned on the bandwidth of the carrier 1; or, the retransmission resource is located on the bandwidth of BWP2, and the initial transmission resource is located on the bandwidth of BWP 1. As shown in fig. 7c, when time division multiplexing is used between the retransmission resource and the initial transmission resource, at this time, both the retransmission resource and the initial transmission resource occupy 2 symbols. As shown in fig. 7d, when time division multiplexing is used between the retransmission resource and the initial transmission resource, at this time, the initial transmission resource occupies 2 symbols, and the retransmission resource occupies 1 symbol.

It should be noted that, the above is only an example of retransmission of the control channel once, in practical applications, the control channel may be retransmitted multiple times, and when the control channel is retransmitted multiple times, the multiplexing relationship between the retransmission resource and the resource in the previous transmission may be an inter-carrier frequency division multiplexing relationship, an intra-carrier frequency division multiplexing relationship, a time division multiplexing and frequency division multiplexing relationship, or the like, which is not limited.

Illustratively, before the access network device retransmits the first control channel to the terminal device, the access network device needs to reconfigure a search space for detecting the retransmitted first control channel for the terminal device, such as: a third search space. The configuration information of the third search space may be sent to the terminal device independently, or may be sent to the terminal device with one of the configuration information of the first search space, that is, the first search space may include the configuration information of the search space of the first control channel used for detecting retransmission of the access network device. Such as: the configuration information included in the first search space may include one or more of the following; the detection method comprises the steps of initial transmission CORESET identification, retransmission COESET identification, detection period of initial transmission first control channel, detection period of retransmission first control channel, time offset of initial transmission first control channel and retransmission first channel, position needing to be detected in time slot of initial transmission first control channel or position needing to be detected in time slot of retransmission first control channel and the like.

The detection period of the first control channel for initial transmission and the detection period of the first control channel for retransmission may be the same. The position to be detected in the time slot when the first control channel is initially transmitted and the position to be detected in the time slot when the first control channel is retransmitted may be the same. The time offset between the first control channel for initial transmission and the first control channel for retransmission may be: an offset of a starting symbol of the retransmitted first control channel relative to a starting symbol of the initially transmitted first control channel is detected.

The above-mentioned scheme provided by the embodiments of the present application is mainly introduced from the perspective of interaction between the nodes. It is understood that each node, for example, the access network device and the terminal device, in order to implement the above functions, includes a corresponding hardware structure and/or software module for performing each function. Those skilled in the art will readily appreciate that the present application is capable of being implemented in hardware or a combination of hardware and computer software for implementing the various exemplary algorithms S described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the access network device and the terminal device may be divided into functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device according to this embodiment may be an access network device or a chip or a system on chip in the access network device. The communication device may be configured to perform the functions of the access network apparatus in the above method embodiments. As shown in fig. 8, the communication apparatus may include: a processing module 81, a sending module 82;

a processing module 81, configured to configure at least one control channel resource set for a terminal device; each control channel resource set in at least one control channel resource set corresponds to one or more control channels and is used for configuring at least two detection opportunities for the terminal equipment; each of the at least two detection occasions is different, and each detection occasion is used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set.

A sending module 82, configured to send scheduling information to the terminal device through one or more control channels corresponding to each control channel resource set in the at least one control channel resource set.

In one possible design, the processing module 81 is further configured to configure the first parameter information for the terminal device; the first parameter information is used to indicate a processing format of at least one control channel of the one or more control channels, where the processing format includes a coding format and/or a modulation format, and the processing format of one or more control channels corresponding to each control channel resource set in the at least one control channel resource set is different.

In one possible design, the sending module 82 is further configured to send indication information to the terminal device; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled by the scheduling information.

In one possible design, at least two detection occasions correspond to URLLC traffic and eMBB traffic, respectively.

In one possible design, C _ RNTI scrambling is adopted for scheduling eMBB service, and MCS-C-RNTI scrambling is adopted for scheduling URLLC service.

In one possible design, the detection period of URLLC traffic is shorter than the detection period of eMBB traffic.

In a possible design, when one or more control channels corresponding to each control channel resource set in at least one control channel resource set need to be retransmitted, the multiplexing relationship between the retransmission resources and the initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship.

The communication apparatus provided in the embodiment of the present application may perform the actions of the access network device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

Fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication apparatus according to this embodiment is a terminal device or a chip or a system on a chip in a terminal device in the above method embodiments. The communication device may be configured to perform the functions of the terminal device in the above method embodiments. As shown in fig. 9, the communication apparatus may include: a receiving module 91, a processing module 92;

a receiving module 91, configured to receive configuration information of at least one control channel resource set; wherein each control channel resource set in the at least one control channel resource set corresponds to one or more control channels and is configured to receive configuration information of at least two detection occasions; each of the at least two detection occasions is different, and each detection occasion is used for detecting one or more control channels corresponding to each control channel resource set in at least one control channel resource set by the terminal equipment;

the processing module 92 is configured to detect one or more control channels corresponding to each control channel resource set according to at least two detection occasions.

In a possible design, the receiving module 91 is further configured to obtain first parameter information; the first parameter information is used for indicating a processing format of at least one control channel in the one or more control channels, the processing format includes a coding format and/or a modulation format, and the processing format of one or more control channels corresponding to each control channel resource set in the at least one control channel resource set is different;

the processing module 92 is specifically configured to detect one or more control channels according to the processing format indicated by the first parameter information at least two detection occasions.

In one possible design, the receiving module 91 is further configured to receive indication information; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled to the terminal equipment by the access network equipment.

In one possible design, the control channel for scheduling eMBB service is scrambled with C _ RNTI, and the control channel for scheduling URLLC service is scrambled with MCS-C-RNTI.

The communication apparatus provided in the embodiment of the present application may perform the actions of the terminal device in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.

It should be noted that the above receiving module and the sending module may be integrated in the transceiver when the receiving module and the sending module are actually implemented. The processing module can be realized in the form of software called by the processing element; or may be implemented in hardware. For example, the processing module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and a function of the processing module may be called and executed by a processing element of the apparatus. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each S or above modules of the above method may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor that can call program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

Fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 10, the communication apparatus may include: a processor 101 (e.g., CPU), memory 102, transceiver 103; the transceiver 103 is coupled to the processor 101, and the processor 101 controls the receiving action of the transceiver 103; the memory 102 may include a random-access memory (RAM) and a non-volatile memory (NVM), such as at least one disk memory, and the memory 102 may store various instructions for performing various processing functions and implementing the method S of the embodiment of the present application. For example, the communication device related to the present application may further include: power supply 104, communication bus 105. The transceiver 103 may be integrated in a transceiver of the communication device or may be a separate transceiving antenna on the communication device. The communication bus 105 is used to implement communication connections between the elements. The communication port 106 is used for realizing connection communication between the communication device and other peripherals.

In an embodiment of the present application, the memory 102 is used for storing computer executable program codes, and the program codes include instructions; when the processor 101 executes the instruction, the instruction causes the processor 101 of the communication apparatus to execute the processing action of the access network device in the foregoing method embodiment, and causes the transceiver 103 to execute the transceiving action of the access network device in the foregoing method embodiment or the optional embodiment, which has similar implementation principles and technical effects, and is not described herein again.

Fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 11, the communication apparatus may include: a processor 111 (e.g., CPU), memory 112, transceiver 113; the transceiver 113 is coupled to the processor 111, and the processor 111 controls the transceiving action of the transceiver 113; the memory 112 may include a random-access memory (RAM) and a non-volatile memory (NVM), such as at least one disk memory, and the memory 112 may store various instructions for performing various processing functions and implementing the method S of the present application. The communication device to which the present application relates may also include, by way of example, a communication bus 114. The transceiver 113 may be integrated in a transceiver of the communication device or may be a separate transceiving antenna on the communication device. The communication bus 114 is used to implement communication connections between the elements. The communication port 116 is used for connection communication between the communication device and other peripheral devices.

In the embodiment of the present application, the memory 112 is used for storing computer executable program codes, and the program codes include instructions; when the processor 111 executes the instruction, the instruction causes the processor 111 of the communication apparatus to execute the processing action of the terminal device in the foregoing embodiment or the optional embodiment, and causes the transceiver 113 to execute the transceiving action of the terminal device in the foregoing method embodiment, which has similar implementation principles and technical effects, and is not described herein again.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The term "plurality" herein means two or more. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

Claims

1. A method for detecting a control channel, the method comprising:

the access network equipment configures at least one control channel resource set for the terminal equipment; wherein each of the at least one set of control channel resources corresponds to one or more control channels;

the access network equipment configures at least two detection occasions for the terminal equipment; wherein each of the at least two detection occasions is different, and each detection occasion is used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set;

and the access network equipment sends scheduling information to the terminal equipment through one or more control channels corresponding to each control channel resource set in the at least one control channel resource set.

2. The method according to claim 1, characterized in that it comprises:

the access network equipment configures first parameter information for the terminal equipment;

the first parameter information is used to indicate a processing format of at least one of the one or more control channels, where the processing format includes a coding format and/or a modulation format, and the processing format of one or more control channels corresponding to each of the at least one control channel resource set is different.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

the access network equipment sends indication information to the terminal equipment; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled by the scheduling information.

4. The method according to any one of claims 1 to 3,

the at least two detection occasions respectively correspond to a high-reliability low-delay communication URLLC service and an enhanced mobile broadband eMBB service.

5. The method of claim 4,

scheduling information for scheduling the eMBB service is scrambled by using a cell radio network temporary identifier (C _ RNTI);

and scheduling information for scheduling the URLLC service is scrambled by adopting a modulation and coding strategy cell radio network temporary identifier MCS-C-RNTI.

6. The method according to claim 4 or 5,

and the detection period of the URLLC service is shorter than the detection period of the eMBB service.

7. The method according to any of claims 1 to 6, wherein when one or more control channels corresponding to each control channel resource set in the at least one control channel resource set need to be retransmitted, the multiplexing relationship between the retransmission resources and the initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship.

8. A method for detecting a control channel, the method comprising:

the terminal equipment receives configuration information of at least one control channel resource set; wherein each of the at least one set of control channel resources corresponds to one or more control channels;

the terminal equipment receives configuration information of at least two detection occasions; wherein each of the at least two detection occasions is different, and each detection occasion is used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set;

and the terminal equipment detects one or more control channels corresponding to each control channel resource set according to the at least two detection occasions.

9. The method of claim 8, wherein the method comprises:

the terminal equipment acquires first parameter information; wherein the first parameter information is used to indicate a processing format of at least one of the one or more control channels, the processing format includes a coding format and/or a modulation format, and the processing format of one or more control channels corresponding to each of the at least one control channel resource sets is different;

the detecting, by the terminal device, the one or more control channels corresponding to each control channel resource set according to the at least two detection occasions includes: and the terminal equipment detects the one or more control channels according to the processing format indicated by the first parameter information at the at least two detection occasions.

10. The method according to claim 8 or 9, characterized in that the method further comprises:

the terminal equipment receives indication information; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled by the access network device to the terminal device.

11. The method according to any one of claims 8 to 10,

12. The method of claim 11,

the control channel corresponding to the eMBB service is detected by using a cell radio network temporary identifier (C _ RNTI);

and the control channel corresponding to the URLLC service is detected by adopting a modulation and coding strategy cell radio network temporary identifier MCS-C-RNTI.

13. The method according to claim 11 or 12,

14. The method according to any of claims 8 to 13, wherein when one or more control channels corresponding to each control channel resource set in the at least one control channel resource set need to be retransmitted, the multiplexing relationship between the retransmission resources and the initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship.

15. An apparatus for detecting a control channel, the communication apparatus comprising:

a processing module, configured to configure at least one control channel resource set for a terminal device; wherein each of the at least one set of control channel resources corresponds to one or more control channels;

the processing module is used for configuring at least two detection occasions for the terminal equipment; wherein each of the at least two detection occasions is different, and each detection occasion is used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set;

a sending module, configured to send scheduling information to the terminal device through one or more control channels corresponding to each control channel resource set in the at least one control channel resource set.

16. The apparatus of claim 15,

the processing module is further configured to configure first parameter information for the terminal device;

17. The apparatus of claim 15 or 16,

the sending module is further configured to send indication information to the terminal device; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled by the scheduling information.

18. The apparatus according to any of claims 15-17, wherein the at least two detection occasions correspond to high reliability low latency URLLC traffic and enhanced mobile broadband eMBB traffic, respectively.

19. The apparatus of claim 18,

20. The apparatus of claim 18 or 19, wherein a detection period of the URLLC traffic is smaller than a detection period of the eMBB traffic.

21. The apparatus according to any of claims 15 to 20, wherein when one or more control channels corresponding to each control channel resource set in the at least one control channel resource set need to be retransmitted, a multiplexing relationship between retransmission resources and initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship.

22. An apparatus for detecting a control channel, the apparatus comprising:

a receiving module, configured to receive configuration information of at least one control channel resource set; wherein each of the at least one set of control channel resources corresponds to one or more control channels;

the receiving module is used for receiving configuration information of at least two detection occasions; wherein each of the at least two detection occasions is different, and each detection occasion is used for the terminal device to detect one or more control channels corresponding to each control channel resource set in the at least one control channel resource set;

and a processing module, configured to detect one or more control channels corresponding to each control channel resource set according to the at least two detection occasions.

23. The apparatus of claim 22,

the receiving module is further used for acquiring first parameter information; wherein the first parameter information is used to indicate a processing format of at least one of the one or more control channels, the processing format includes a coding format and/or a modulation format, and the processing format of one or more control channels corresponding to each of the at least one control channel resource sets is different;

the processing module is specifically configured to detect the one or more control channels according to the processing format indicated by the first parameter information at the at least two detection occasions.

24. The apparatus of claim 22 or 23,

the receiving module is further used for receiving indication information; the indication information is used for indicating the maximum bandwidth occupied by the data scheduled by the access network device to the terminal device.

25. The apparatus according to any of claims 22 to 24, wherein the at least two detection occasions correspond to high reliability low latency URLLC traffic and enhanced mobile broadband eMBB traffic, respectively.

26. The apparatus of claim 25,

27. The apparatus of claim 25 or 26, wherein a detection period of the URLLC traffic is smaller than a detection period of the eMBB traffic.

28. The apparatus according to any of claims 22 to 27, wherein when one or more control channels corresponding to each control channel resource set in the at least one control channel resource set need to be retransmitted, a multiplexing relationship between retransmission resources and initial transmission resources adopts an inter-carrier frequency division multiplexing relationship or an intra-carrier frequency division multiplexing relationship.

29. A computer-readable storage medium, comprising: computer software instructions;

the computer software instructions, when run in a chip of or built into an apparatus for detecting a control channel, cause the apparatus to perform a method of detecting a control channel as claimed in any one of claims 1 to 7.

30. A computer-readable storage medium, comprising: computer software instructions;

the computer software instructions, when run in a chip of or built into an apparatus for detecting a control channel, cause the apparatus to perform a method of detecting a control channel as claimed in any one of claims 8 to 14.