CN110830157B

CN110830157B - Method and device for transmitting control information

Info

Publication number: CN110830157B
Application number: CN201810911029.3A
Authority: CN
Inventors: 鲁智; 孙鹏; 孙晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2021-01-26
Anticipated expiration: 2038-08-10
Also published as: WO2020029757A1; CN110830157A

Abstract

The embodiment of the invention provides a method and a device for transmitting control information, relates to the technical field of communication, and aims to solve the problem that the transmission reliability of the control information is low because the control information of a plurality of TRPs is contained in one DCI. The method comprises the following steps: sending first Downlink Control Information (DCI) and second DCI to the terminal equipment within the same monitoring time or a preset time length; the first DCI and the second DCI form target control information, the target control information is used for scheduling a target Transport Block (TB), and the target TB is a TB transmitted to the terminal equipment by using at least two QCL parameters in a plurality of quasi-co-located QCL parameters. The embodiment of the invention is used for transmitting the control information.

Description

Method and device for transmitting control information

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting control information.

Background

Compared with the existing communication systems such as Long Term Evolution (LTE), the mobile communication system needs to adapt to more diversified scenes and service requirements.

Currently, the 5G mobile communication system mainly includes: enhanced Mobile Broadband (eMBB), ultra-high reliability and ultra-Low Latency Communication (uRLLC), Massive Internet of things Communication (mMTC), and the like, and the application scenarios put higher requirements on the reliability, throughput, Latency, coverage rate, and the like of a Communication system. In order to further improve the reliability and throughput of a communication system under the condition that spectrum resources are increasingly tense, a communication mode supporting coordinated multiple point (CoMP) is proposed in the prior art. In CoMP communication mode, signals may come from multiple different transmission points (TRPs). For example: a User Equipment (UE) may receive the same or different data from a plurality of TRPs, and when the plurality of TRPs transmit the same data, the UE may receive two identical data, thereby improving reliability, and when the plurality of TRPs transmit different data, the UE may receive data from the plurality of TRPs simultaneously, thereby improving throughput. Before data is sent to a UE through multiple TRPs, a network side device needs to send Control Information to the UE to schedule Transport Blocks (TBs) for multiple TRP transmission, however, at present, a payload of Downlink Control Information (DCI) sent to the UE by the network side device is predefined, and therefore if the Control Information of multiple TRPs is included in one DCI, the DCI load may be too large, and further transmission reliability of the Control Information is low.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for transmitting control information, which are used to solve the problem that transmission reliability of control information is low when control information of multiple TRPs is included in one DCI.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for transmitting control information, where the method is applied to a network side device, and the method includes:

sending first Downlink Control Information (DCI) and second DCI to the terminal equipment within the same monitoring time (monitoring occasion) or a preset time length;

the first DCI and the second DCI form target control information, the target control information is used for scheduling a target Transport Block (TB), and the target TB is a TB transmitted to the terminal equipment by using at least two QCL parameters in a plurality of quasi-co-located QCL parameters.

In a second aspect, an embodiment of the present invention provides a method for transmitting control information, which is applied to a terminal device, and the method includes:

receiving downlink control information DCI from network side equipment;

determining the DCI as a first DCI or a second DCI which forms target control information under the condition that the DCI meets a preset condition;

a target transport block, TB, the target TB being a TB transmitted to the terminal device using at least two QCL parameters of the plurality of quasi co-located QCL parameters.

In a third aspect, an embodiment of the present invention provides a network side device, including:

a sending unit, configured to send first downlink control information DCI and second DCI to a terminal device within the same monitoring time or a preset time duration;

In a fourth aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes:

a receiving unit, configured to receive downlink control information DCI from a network side device;

a processing unit, configured to determine, when the DCI satisfies a preset condition, that the DCI is a first DCI or a second DCI constituting target control information;

In a fifth aspect, an embodiment of the present invention provides a network-side device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the method for transmitting control information according to the first aspect.

In a sixth aspect, an embodiment of the present invention provides a terminal device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the method for transmitting control information according to the first aspect are implemented.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the method for transmitting control information according to the first aspect or the second aspect.

In the method for transmitting control information provided by the embodiment of the present invention, a network side device sends a first DCI and a second DCI to a terminal device within the same monitoring time or a preset time duration; the first DCI and the second DCI form target control information, where the target control information is used to schedule a target TB, and the target TB is a TB that is sent to the terminal device using at least two QCL parameters of the multiple quasi-co-located QCL parameters, that is, in the embodiment of the present invention, the target control information used to schedule a transport block that is sent to the terminal device using at least two QCL parameters of the multiple QCL parameters is encoded into two pieces of DCI information (the first DCI and the second DCI), and then the first DCI and the second DCI are sent to the terminal device, respectively.

Drawings

Fig. 1 is a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating steps of a method for transmitting control information according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a network-side device according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a hardware structure of a network-side device according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present invention.

Detailed Description

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

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". The term "plurality" herein means two or more, unless otherwise specified.

For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the terms "first" and "second" are used to distinguish the same items or similar items with basically the same functions or actions, and those skilled in the art can understand that the terms "first" and "second" are not limited to the quantity and execution order.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion. In the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified.

Before data is sent to a UE through multiple TRPs, a network side device needs to send control information to the UE to schedule multiple TRP-transmitted TBs, however, at present, payloads of DCI sent to the UE by the network side device are predefined, and therefore if the control information of multiple TRPs is contained in one DCI, the DCI load may be too large, and further transmission reliability of the control information is low.

In order to solve the above problem, embodiments of the present invention provide a method and an apparatus for transmitting control information, in the method for transmitting control information, a network side device sends a first DCI and a second DCI to a terminal device within the same monitoring time or a preset time length; the first DCI and the second DCI form target control information, where the target control information is used to schedule a target TB, and the target TB is a TB that is sent to the terminal device using at least two QCL parameters of the multiple quasi-co-located QCL parameters, that is, in the embodiment of the present invention, the target control information used to schedule a transport block that is sent to the terminal device using at least two QCL parameters of the multiple QCL parameters is encoded into two pieces of DCI information (the first DCI and the second DCI), and then the first DCI and the second DCI are sent to the terminal device, respectively.

Fig. 1 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system may include: a plurality of network side devices (illustrated in fig. 1 by taking two TRPs including TRP1 and TRP2 as an example) and a terminal device 13. Wherein, the TRP 111 and the TRP 212 both establish a wireless connection with the terminal device 13 through a Radio Resource Control (RRC) signaling.

Specifically, the Network side device may also be referred to as a Radio Access Network (RAN) device, which is a device for accessing a terminal to a wireless Network, and includes but is not limited to: an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a Home Base Station (e.g., Home evolved NodeB, or Home Node B, HNB), a BaseBand Unit (BBU), a Wireless Fidelity (WIFI) Access Point (AP), a transmission Point (TRP or transmission Point, TP), a Wireless Controller in a Cloud Radio Access Network (CRAN) scenario, a Base Station (gbb) in a 5G communication system, or a Network side device in a future evolved Network, and the like.

Further, the terminal device may be a wireless UE, which may be a device providing voice and/or other traffic data connectivity to a user, a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a UE in a future 5G network or a UE in a future evolved PLMN network, etc. A Wireless UE may communicate with one or more core networks via a Radio Access Network (RAN), and may be a Mobile terminal, such as a Mobile phone (or "cellular" phone) and a computer with a Mobile terminal, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted Mobile device, which exchanges languages and/or data with the RAN, and Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like, and the Wireless terminal may also be a Mobile device, a UE terminal, an Access terminal, a Wireless Communication device, a terminal unit, a Station, a Mobile Station (Mobile Station), or a vehicle-mounted Mobile device, A Remote Station (Remote Station), a Remote Station, a Remote Terminal (Remote Terminal), a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a User Agent (User Agent), a Terminal device, and the like. As an example, in the embodiment of the present invention, fig. 1 illustrates that the terminal is a mobile phone.

It should be noted that the wireless communication system in the embodiment of the present invention is a network providing a wireless communication function. The wireless communication system may employ different communication technologies, such as Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single Carrier frequency division Multiple Access (SC-F DMA), Carrier Sense Multiple Access/Collision Avoidance (Carrier Sense Multiple Access with diversity Access), and the like.

An embodiment of the present invention provides a method for transmitting control information, and specifically, as shown in fig. 2, the method for transmitting control information may include the following steps:

s11, the network side device sends the first DCI and the second DCI to the terminal device within the same monitoring time (monitoring session) or a preset time duration.

The first DCI and the second DCI form target control information, the target control information is used for scheduling a target Transport Block (TB), and the target TB is a TB sent to the terminal device by using at least two QCL parameters in a plurality of quasi-co-located QCL parameters.

That is, the network side device encodes target control information for scheduling a TB transmitted to the terminal device using at least two QCL parameters of the multiple QCL) parameters into two downlink control information (the first DCI and the second DCI), and transmits the two downlink control information to the terminal device within the same monitoring time or within a preset time length.

Therefore, as shown in fig. 2, the step S11 may specifically include: s11a, transmitting the first DCI and S11b to the terminal equipment at the first time, and transmitting the second DCI to the terminal equipment at the first time; the first time and the second time are in the same monitoring time, or the interval between the first time and the second time is less than the preset time length.

It should be noted that the network side device in step S11 may be one of the TRPs for transmitting the TB to the terminal device, or may be another network side device besides the TRPs for transmitting the TB to the terminal device, which is not limited in the embodiment of the present invention.

It should be noted that, because the first DCI and the second DCI transmitted by the network side device to the terminal device are transmitted separately, the terminal device also includes two receptions, where one reception is performed on the first DCI transmitted by the network side device, and the other reception is performed on the second DCI transmitted by the network side device, and because the terminal device needs to determine that the received DCI belongs to one of the target control information no matter the terminal device receives the first DCI or the second DCI, the method executed by the terminal device in the embodiment of the present invention is described by taking an example in which the terminal device receives one of the first DCI and the second DCI. When the terminal device receives the other of the first DCI and the second DCI, the terminal device repeatedly performs the following method.

Correspondingly, the terminal device receives the DCI from the network side device.

It should be noted that the DCI received by the terminal device from the network side device may be the first DCI in the target control information, may also be the second DCI in the target control information, and may also be other existing DCI, so that the terminal device needs to continue to perform the following step S12 to determine whether the received DCI is the DCI in the target control information.

S12, the terminal device determines whether the received DCI satisfies a preset condition.

In the above step S12, if the terminal device determines that the received DCI satisfies the preset condition, the following step S13 is performed.

S13, the terminal device determines that the received DCI is the first DCI or the second DCI constituting the target control information.

That is, when the terminal device determines that the received DCI satisfies the preset condition, it determines that the received DCI is DCI in the target control information.

In addition, in step S12, if the terminal device determines that the received DCI does not satisfy the preset condition, the terminal device may determine that the received DCI is not DCI in the target control information and is a DCI in the prior art, so that the terminal device may directly perform processing according to the existing DCI processing method, which is not limited in the embodiment of the present invention.

A detailed description will be given below of an implementation scheme of the terminal device in the above embodiment to determine whether the received DCI is DCI in the target control information (whether the received DCI satisfies a preset condition).

The first implementation scheme is as follows:

when encoding a first DCI and a second DCI, a network side device makes an information load length (payload size) of the first DCI a first length, and makes an information load length of the second DCI a second length;

the first length and the second length do not belong to a preset length set, the preset length set is a length set composed of lengths of information payloads of other DCIs configured for the terminal device except the first DCI and the second DCI within a target Bandwidth part (BWP), and the target BWP is the BWP for transmitting the first DCI and the second DCI.

After the terminal equipment receives DCI sent by the network side equipment, judging whether the length of the information load of the received DCI is a target length; and if the length of the information load of the received DCI is the target length, determining that the received DCI is the first DCI or the second DCI forming the target control information.

Namely, the DCI satisfies a preset condition, including:

the information load length of the DCI is a target length;

the target length does not belong to a preset length set, the preset length set is a length set composed of lengths of information loads of other DCIs except the first DCI and the second DCI configured for the terminal device in a target bandwidth part BWP, and the target BWP is the BWP for receiving the DCI.

That is, the information load length configured by the network side device for the first DCI and the second DCI is different from the information load length of other DCI in the BWP that transmits the first DCI and the second DCI, so that the terminal device can determine whether the received DCI is the DCI in the target control information according to the information load length of the received DCI after receiving the DCI transmitted by the network side device.

It should be noted that, the preset length set may further include all DCIs configured for the terminal device except the first DCI and the second DCI, that is, the information payload length configured for the first DCI and the second DCI by the network-side device is different from the information payload length of all DCIs in all other BWPs configured for the terminal device.

Exemplarily, the DCI configured for the terminal device within the target BWP includes: DCI1, DCI2, DCI3, DCI4, and DCI 5; wherein the DCI1 is the first DCI, and the information load length is A; the DCI2 is the second DCI, and the information load length is B; the information payload lengths of the DCI3, the DCI4, and the DCI5 are C, D, E, respectively, and the preset length set is: [ C, D, E ], the target length comprising: a and B; and when the information load length of the DCI received by the terminal equipment is A or B, determining that the received DCI is the DCI in the target control information.

Optionally, the first length is equal to the second length.

That is, the information payload length of the first DCI is equal to the information payload length of the second DCI. Optionally, the first length is not equal to the second length.

That is, the information payload length of the first DCI is equal to the information payload length of the second DCI. Illustratively, referring to table 1 below, a conventional DCI is shown in table 1 below:

TABLE 1

Then, the first DCI may be as shown in table 2 below:

TABLE 2

The second DCI may be as shown in table 3 below:

TABLE 3

The abbreviations in tables 1, 2 and 3 refer to the following symbols: a Physical Downlink Shared Channel (PDSCH); hybrid automatic Repeat reQuest (HARQ); physical Uplink Control CHannel (PUCCH); transmit Power Control (TPC).

The first DCI shown in table 2 and the second DCI shown in table 3 share the DCI format identifier, the carrier indication, and the BWP indication, and the DCI format identifier, and the BWP indication are carried in the first DCI.

When the first length is equal to the second length, the sum of the numbers of bits of the domains of the first DCI (a1+ b1+ c1+ … … z1+ a) is not equal to the sum of the numbers of bits of the domains of the conventional DCI, the sum of the numbers of bits of the domains of the second DCI (a2+ b2+ c2+ … … + w2+ x2) is not equal to the sum of the numbers of bits of the domains of the conventional DCI, and the sum of the numbers of bits of the domains of the first DCI is equal to the sum of the numbers of bits of the domains of the second DCI. At this time, the first DCI and the second DCI may be distinguished by a value of a preset field of the second DCI. For example, the values of the penultimate domain to the penultimate domain of the second DCI (SRS request, CGB transmission information, CBG flush information, DMRS sequence initialization) are all set to 0, and the values of the penultimate domain to the penultimate domain of the first DCI are prohibited from being set to 0 at the same time; and if the information load length of the received DCI is determined to be the target length and the values from the last field to the last field are all 0, determining that the received DCI is the second DCI, and if the information load length of the received DCI is determined to be the target length and the values from the last field to the last field are not all 0, determining that the received DCI is the first DCI.

When the first length is not equal to the second length, the sum of the numbers of bits of the domains of the first DCI (a1+ b1+ c1+ … … z1+ a) is not equal to the sum of the numbers of bits of the domains of the conventional DCI, the sum of the numbers of bits of the domains of the second DCI (a2+ b2+ c2+ … … + w2+ x2) is not equal to the sum of the numbers of bits of the domains of the conventional DCI, and the sum of the numbers of bits of the domains of the first DCI is not equal to the sum of the numbers of bits of the domains of the second DCI.

It should be noted that, in the embodiment, the first DCI and the second DCI share the DCI format identifier, the carrier indication, and the BWP indication as examples, but the embodiment of the present invention is not limited thereto, and on the basis of the foregoing embodiment, the sharing relationship between the first DCI and the second DCI in the embodiment of the present invention may be shown in table 4 below:

TABLE 4

The second implementation scheme is as follows:

when the Network side equipment encodes the first DCI and the second DCI, enabling a Radio Network Temporary Identity (RNTI) of the first DCI to be a first RNTI and enabling the RNTI of the second DCI to be a second RNTI;

the first RNTI and the second RNTI do not belong to a preset RNTI set, and the preset RNTI set comprises RNTIs of other DCIs configured for the terminal equipment except the first DCI and the second DCI.

After the terminal equipment receives DCI sent by network side equipment, judging whether the RNTI of the received DCI is a target RNTI or not; and if the RNTI of the received DCI is the target RNTI, determining that the received DCI is the first DCI or the second DCI which forms the target control information.

Namely, the DCI satisfies a preset condition, including:

the Radio Network Temporary Identifier (RNTI) of the DCI is a target RNTI;

the target RNTI does not belong to a preset RNTI set, and the preset RNTI set comprises RNTIs of other DCIs configured for the terminal equipment except the first DCI and the second DCI.

That is, the RNTIs configured for the first DCI and the second DCI by the network side device are different from the RNTIs of the other DCIs configured for the terminal device, so that the terminal device can determine whether the received DCI is the DCI in the target control information according to the RNTI of the received DCI after receiving the DCI transmitted by the network side device.

Exemplarily, the DCI configured for the terminal device includes: DCI1, DCI2, DCI3, DCI4, and DCI 5; the DCI1 is the first DCI, and the RNTI of the DCI1 is RNTI 1; the DCI2 is the second DCI, and the RNTI of the DCI2 is RNTI 2; the RNTIs of DCI3, DCI4 and DCI5 are RNTI3, RNTI4 and RNTI5 respectively, and the preset RNTI set is as follows: [ RNTI3, RNTI4, RNTI5], the target RNTI including: RNTI1 and RNTI 2; when the RNTI of the DCI received by the terminal device is RNTI1 or RNTI2, it is determined that the received DCI is the DCI in the target control information.

Optionally, the first RNTI is the same as the second RNTI.

That is, the RNTI of the first DCI is the same as the RNTI of the second DCI.

Likewise, when the RNTI of the first DCI is the same as the RNTI of the second DCI, the first DCI and the second DCI may be distinguished by an information payload length. For example, the information payload length of the first DCI is set to X, the information payload length of the second DCI is set to Y, at this time, if the terminal device determines that the RNTI of the received DCI is the target RNTI and the information payload length is X, the received DCI is determined to be the first DCI, and if the terminal device determines that the RNTI of the received DCI is the target RNTI and the information payload length is Y, the received DCI is determined to be the second DCI.

Optionally, the first RNTI is different from the second RNTI.

That is, the RNTI of the first DCI is different from the RNTI of the second DCI.

The third implementation scheme is as follows:

the network side device sends first DCI and second DCI which form target control information to the terminal device, and the method comprises the following steps:

transmitting the first DCI and the second DCI to the terminal device on a Physical Downlink Control Channel (PDCCH) corresponding to a target Control resource set (coreset);

the target control resource set is different from a control resource set corresponding to a PDCCH transmitting DCI other than the first DCI and the second DCI configured for the terminal device within a target BWP, where the target BWP is a BWP transmitting the first DCI and the second DCI.

Therefore, after receiving the DCI sent by the network side equipment, the terminal equipment determines whether the control resource set corresponding to the PDCCH for receiving the DCI is the target control resource set, and if the control resource set corresponding to the PDCCH for receiving the DCI is the target control resource set, the terminal equipment determines that the received DCI is the first DCI or the second DCI forming the target control information.

Namely, the DCI satisfies a preset condition, including:

a control resource set corresponding to a Physical Downlink Control Channel (PDCCH) receiving the DCI is a target control resource set;

The network device should avoid the first DCI and the second DCI from overlapping with control resource sets corresponding to PDCCHs of other DCIs. The terminal device may determine whether the detected DCI is the first DCI or the second DCI according to a preset rule. For example: the DCI monitored by the target control resource set is first DCI or second DCI.

Further the network may configure each CORESET to monitor the number of PDSCH/PUSCH.

The implementation scheme is four:

and when the network side equipment sends the first DCI and the second DCI to terminal equipment, enabling the domain value of a first target domain of the first DCI to be a first preset domain value, and enabling the domain value of a second target domain of the second DCI to be a second preset domain value.

Specifically, the target domain may be one or more domains in DCI, or may also be one or more code points in one domain, and neither the position nor the number of the target domain is limited in the embodiment of the present invention. For example: the target domain may be the penultimate domain of the first DCI and the second DCI (DMRS sequence initialization); for another example: the target domain may be a penultimate domain to a penultimate domain (SRS request, CGB transmission information, CBG flush information, DMRS sequence initialization) of the first DCI and the second DCI, for example, when the first DCI and other DCI loads except the first DCI are the same, the terminal may distinguish the first DCI or the existing DCI according to a code point of a certain domain. For example: if a reserved code is indicated in an antennal port domain (DMRS domain), the DCI is the first DCI. At this time, the first DCI does not use the MCS field of TB2, i.e., the DCI corresponding to QCL parameter i schedules PDSCH TB1 only. The antenna port domain (DMRS domain) is then indicated by the mcs domain of TB 2. If TB2 corresponding to QCL parameter i is to be scheduled, its MCS field may be indicated by step2 DCI. And the difference of the bit numbers of the MCS domain and the antenna port domain is used as a reserved domain. At this time, the modulation code regions of the TBs of the first DCI and the second DCI may be also shown in the following tables 5 and 6, respectively:

TABLE 5

TABLE 6

When determining whether the received DCI is the DCI in the target control information according to the fourth implementation scheme, the information payload length of the first DCI and the second DCI may be the same as the information payload size of at least one of the other DCIs except the first DCI and the second DCI, and the information payload length of the first DCI and the second DCI may also be different from the information payload size of any DCI among the other DCIs except the first DCI and the second DCI.

After the terminal equipment receives DCI sent by the network side equipment, judging whether the domain value of a target domain of the received DCI is a preset domain value or not; and if the domain value of the target domain of the received DCI is the preset domain value, determining that the received DCI is the first DCI or the second DCI which forms the target control information.

Namely, the DCI satisfies a preset condition, including:

and the domain value of the target domain of the DCI is a preset domain value.

The implementation scheme is five:

when the network side device sends the first DCI and the second DCI to a terminal device, enabling a domain value of a first target domain of the first DCI to be a first preset domain value, and enabling an information load length of the second DCI to be a third length;

the third length does not belong to a preset length set, where the preset length set is a length set composed of lengths of information payloads of other DCIs configured for the terminal device within a target bandwidth part BWP, and the target BWP is a BWP for transmitting the first DCI and the second DCI.

When determining whether the received DCI is the DCI in the target control information according to the fifth implementation scheme, the information payload length of the first DCI is the same as the information payload size of at least one of other DCIs, and the information payload length of the first DCI may also be different from the information payload size of any DCI in the other DCIs.

After the terminal equipment receives DCI sent by the network side equipment, decoding the DCI according to the configured load size, judging whether the domain value of the target domain of the received DCI is a preset domain value or not, and determining that the domain value of the target domain of the received DCI is a preset threshold value, wherein the received DCI is determined to be the first DCI forming target control information; and if the domain value of the target domain of the received DCI is determined not to be the preset threshold value, determining that the received DCI is the existing DCI. And if the information load length of the received DCI is determined to be the target length, determining the received DCI to be a second DCI forming the target control information.

That is, the satisfying of the preset condition includes:

and the domain value of the target domain of the DCI is a preset domain value, or the information load length of the DCI is a target length.

The implementation scheme is six:

when the network side equipment sends the first DCI and the second DCI to terminal equipment, enabling a domain value of a first target domain of the first DCI to be a first preset domain value and enabling an RNTI of the second DCI to be a third RNTI;

the third RNTI does not belong to a preset RNTI set, and the preset RNTI set comprises RNTIs of other DCIs configured for the terminal equipment except the second DCI.

After the terminal equipment receives DCI sent by the network side equipment, decoding the DCI according to the configured load size, judging whether the domain value of the target domain of the received DCI is a preset domain value or not, and determining that the domain value of the target domain of the received DCI is a preset threshold value, wherein the received DCI is determined to be the first DCI forming target control information; and if the domain value of the target domain of the received DCI is determined not to be the preset threshold value, determining that the received DCI is the existing DCI. And if the RNTI of the received DCI is determined to be the target RNTI, determining that the received DCI is the second DCI forming the target control information, and if the RNTI of the received DCI is determined not to be the target RNTI, determining that the received DCI is the existing DCI.

That is, the satisfying of the preset condition includes:

and the domain value of the target domain of the DCI is a preset domain value, or the RNTI of the DCI is a target RNTI.

Further, if the information payload length of the second DCI constituting the target table control information is smaller than the information payload length of the conventional DCI, the time-frequency resource for transmitting the second DCI may be reduced, thereby reducing the overhead of the network system. In addition, when the information payload length of the second DCI constituting the target table control information is made smaller than that of the legacy DCI, the second DCI may be aligned with a fallback (fallback) DCI, thereby improving the efficiency of blind detection.

In the control information transmission method provided by the embodiment of the present invention, a network side device sends a first DCI and a second DCI to a terminal device within the same monitoring time or a preset time duration; the first DCI and the second DCI form target control information, where the target control information is used to schedule a target TB, and the target TB is a TB that is sent to the terminal device using at least two QCL parameters of the multiple quasi-co-located QCL parameters, that is, in the embodiment of the present invention, the target control information used to schedule a transport block that is sent to the terminal device using at least two QCL parameters of the multiple QCL parameters is encoded into two pieces of DCI information (the first DCI and the second DCI), and then the first DCI and the second DCI are sent to the terminal device, respectively.

An embodiment of the present invention provides a network-side device, and specifically, referring to fig. 3, the network-side device 300 includes:

a sending unit 31, configured to send first downlink control information DCI and second DCI to a terminal device within the same monitoring time or a preset time duration;

Optionally, the information payload length of the first DCI is a first length, and the information payload length of the second DCI is a second length;

the first length and the second length do not belong to a preset length set, the preset length set is a length set composed of lengths of information payloads of other DCIs configured for the terminal device except the first DCI and the second DCI within a target bandwidth part BWP, and the target BWP is the BWP for transmitting the first DCI and the second DCI.

Optionally, the first length is equal to the second length.

Optionally, the first length is not equal to the second length.

Optionally, the radio network temporary identifier RNTI of the first DCI is a first RNTI, and the RNTI of the second DCI is a second RNTI;

Optionally, the first RNTI is the same as the second RNTI.

Optionally, the first RNTI is different from the second RNTI.

Optionally, the sending unit 31 is specifically configured to send the first DCI and the second DCI to the terminal device on a physical downlink control channel PDCCH corresponding to a target control resource set;

Optionally, a domain value of a first target domain of the first DCI is a first preset domain value;

the domain value of a second target domain of the second DCI is a second preset domain value, or the information load length of the second DCI is a third length, or the RNTI of the second DCI is a third RNTI;

the third length does not belong to a preset length set, the preset length set is a length set composed of lengths of information loads of other DCIs except the second DCI configured for the terminal device in a target bandwidth part BWP, the target BWP is the BWP for transmitting the first DCI and the second DCI, the third RNTI does not belong to a preset RNTI set, and the preset RNTI set comprises RNTIs of other DCIs except the first DCI and the second DCI configured for the terminal device.

In the monitoring time or the preset time length, the network only configures monitoring of one multi-stage DCI, namely only one first DCI and one second DCI.

Further, the network can configure the number of PDSCH/PUSCHs to be monitored in one monitoring time.

The network side device provided in this embodiment of the present application can implement the process shown in any one of the above method embodiments, and is not described here again to avoid repetition.

The network side equipment provided by the embodiment of the invention sends the first DCI and the second DCI to the terminal equipment within the same monitoring time or a preset time length; the first DCI and the second DCI form target control information, where the target control information is used to schedule a target TB, and the target TB is a TB that is sent to the terminal device using at least two QCL parameters of the multiple quasi-co-located QCL parameters, that is, in the embodiment of the present invention, the target control information used to schedule a transport block that is sent to the terminal device using at least two QCL parameters of the multiple QCL parameters is encoded into two pieces of DCI information (the first DCI and the second DCI), and then the first DCI and the second DCI are sent to the terminal device, respectively.

An embodiment of the present application further provides a network side device, and as shown in fig. 4, the network side device includes: the processor 41, the memory 42, and a computer program stored in the memory 42 and capable of running on the processor 41, where the computer program, when executed by the processor 41, implements the process of the method for transmitting control information in the foregoing embodiments, and can achieve the same technical effects, and are not described herein again to avoid repetition.

Still another embodiment of the present invention provides a terminal device, and specifically, as shown in fig. 5, the terminal device 500 includes:

a receiving unit 51, configured to receive downlink control information DCI from a network side device;

a processing unit 52, configured to determine, when the DCI satisfies a preset condition, that the DCI is a first DCI or a second DCI constituting target control information;

the target control information target transport block, TB, is a TB transmitted to the terminal device using at least two QCL parameters of the plurality of quasi co-located QCL parameters.

Optionally, the DCI may satisfy a preset condition, including:

the information load length of the DCI is a target length;

Optionally, the DCI may satisfy a preset condition, including:

the Radio Network Temporary Identifier (RNTI) of the DCI is a target RNTI

Optionally, the DCI may satisfy a preset condition, including:

and the domain value of the target domain of the DCI is a preset domain value.

The terminal device provided by the embodiment of the invention receives DCI sent by network side equipment, and determines the received DCI as first DCI or second DCI forming target control information when the received DCI meets the preset condition; the target control information is used to schedule a transport block that is sent to the terminal device using at least two QCL parameters of the multiple quasi co-located QCL parameters, that is, the network side device in the embodiment of the present invention encodes the target control information used to schedule the transport block that is sent to the terminal device using at least two QCL parameters of the multiple QCL parameters into two pieces of DCI information (the first DCI and the second DCI), and then sends the first DCI and the second DCI to the terminal device, respectively.

Fig. 6 is a schematic diagram of a hardware structure of a terminal device for implementing an embodiment of the present invention, where the terminal device 600 includes, but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the terminal device configuration shown in fig. 6 does not constitute a limitation of the terminal device, and that the terminal device may include more or fewer components than shown, or combine certain components, or a different arrangement of components. In the embodiment of the present invention, the terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 101 is configured to send a first DCI and a second DCI which form target control information to a terminal device within the same monitoring time or a preset time length;

the target control information is used for scheduling a TB transmitted to the terminal device using at least two of the plurality of QCL parameters.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 101 may be used for receiving and sending signals during a message transmission or call process, and specifically, after receiving downlink data from a base station, the downlink data is processed by the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 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. In addition, the radio frequency unit 101 can also communicate with a network and other devices through a wireless communication system.

The terminal device 600 provides the user with wireless broadband internet access through the network module 102, such as helping the user send and receive e-mails, browse webpages, access streaming media, and the like.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the network module 102 or stored in the memory 109 into an audio signal and output as sound. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the terminal apparatus 600 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 includes a speaker, a buzzer, a receiver, and the like.

The input unit 104 is used to receive an audio or video signal. The input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the Graphics processor 1041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the network module 102. The microphone 1042 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode.

The terminal device 600 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or the backlight when the terminal device 600 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in multiple directions (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal device posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 105 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal device. Specifically, the user input unit 107 includes a touch panel 1071 and other input devices 1072. Touch panel 1071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1071 (e.g., operations by a user on or near touch panel 1071 using a finger, stylus, or any suitable object or attachment). The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and receives and executes commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 1071 may be overlaid on the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although in fig. 6, the touch panel 1071 and the display panel 1061 are two independent components to implement the input and output functions of the terminal device, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the terminal device, and is not limited herein.

The interface unit 108 is an interface for connecting an external device to the terminal apparatus 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal apparatus 600 or may be used to transmit data between the terminal apparatus 600 and the external device.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the terminal device, connects various parts of the entire terminal device using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the terminal device. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The terminal device 600 may further include a power supply 111 (such as a battery) for supplying power to the plurality of components, and preferably, the power supply 111 may be logically connected to the processor 110 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.

In addition, the terminal device 600 includes some functional modules that are not shown, and are not described in detail herein.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements multiple processes of the method for transmitting control information in the foregoing embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be substantially or partially embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal (e.g., a mobile phone, a computer, a server, an air conditioner, or a network-side device) to execute the method for transmitting control information according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for transmitting control information is applied to a network side device, and the method comprises the following steps:

sending first Downlink Control Information (DCI) and second DCI to the terminal equipment within the same monitoring time or a preset time length;

the first DCI and the second DCI form target control information, the target control information is used for scheduling a target Transport Block (TB), and the target TB is a TB transmitted to the terminal equipment by using at least two QCL parameters in a plurality of quasi-co-located QCL parameters;

the information load length of the first DCI is a first length, and the information load length of the second DCI is a second length;

2. The method of claim 1,

the first length is equal to the second length.

3. The method of claim 1,

the first length is not equal to the second length.

4. A method for transmitting control information is applied to a network side device, and the method comprises the following steps:

the Radio Network Temporary Identifier (RNTI) of the first DCI is a first RNTI, and the RNTI of the second DCI is a second RNTI;

5. The method of claim 4,

the first RNTI is the same as the second RNTI.

6. The method of claim 4,

the first RNTI is different from the second RNTI.

7. A method for transmitting control information is applied to a network side device, and the method comprises the following steps:

during the same monitoring time or a preset time span,

transmitting first DCI and second DCI to the terminal equipment on a Physical Downlink Control Channel (PDCCH) corresponding to the target control resource set;

8. A method for transmitting control information is applied to a network side device, and the method comprises the following steps:

the domain value of a first target domain of the first DCI is a first preset domain value;

the information load length of the second DCI is a third length, or the RNTI of the second DCI is a third RNTI;

the third length does not belong to a preset length set, the preset length set is a length set composed of lengths of information loads of other DCIs except the second DCI configured for the terminal device in a target bandwidth part BWP, the target BWP is the BWP for transmitting the first DCI and the second DCI, the third RNTI does not belong to a preset RNTI set, and the preset RNTI set comprises RNTIs of other DCIs except the second DCI configured for the terminal device.

9. A method for transmitting control information, which is applied to a terminal device, the method comprising:

receiving downlink control information DCI from network side equipment;

the target control information is used for scheduling a target transport block, TB, and the target TB is a TB sent to the terminal device by using at least two QCL parameters of a plurality of quasi co-located QCL parameters;

the DCI satisfies preset conditions, including:

the information load length of the DCI is a target length;

10. A method for transmitting control information, which is applied to a terminal device, the method comprising:

receiving downlink control information DCI from network side equipment;

the DCI satisfies preset conditions, including:

the Radio Network Temporary Identifier (RNTI) of the DCI is a target RNTI;

11. A method for transmitting control information, which is applied to a terminal device, the method comprising:

receiving downlink control information DCI from network side equipment;

the DCI satisfies preset conditions, including:

12. A network-side device, comprising:

13. The network-side device of claim 12,

the first length is equal to the second length.

14. The network-side device of claim 12,

the first length is not equal to the second length.

15. A network-side device, comprising:

16. The network-side device of claim 15,

the first RNTI is the same as the second RNTI.

17. The network-side device of claim 15,

the first RNTI is different from the second RNTI.

18. A network-side device, comprising:

a sending unit, configured to send, to a terminal device, a first DCI and a second DCI on a physical downlink control channel PDCCH corresponding to a target control resource set within a same monitoring time or a preset time duration;

19. A network-side device, comprising:

20. A terminal device, comprising:

the target control information is used for scheduling a target transport block, TB, and the target TB is a TB sent to the terminal device by using at least two QCL parameters of a plurality of quasi co-located QCL parameters; the DCI satisfies preset conditions, including:

the information load length of the DCI is a target length;

21. A terminal device, comprising:

the DCI satisfies preset conditions, including:

the Radio Network Temporary Identifier (RNTI) of the DCI is a target RNTI

22. A terminal device, comprising:

the DCI satisfies preset conditions, including:

23. A network-side device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method of transmitting control information according to any one of claims 1 to 8.

24. A terminal device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of transmitting control information according to any one of claims 9 to 11.

25. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of transmitting control information according to any one of claims 1 to 11.