CN108271162B

CN108271162B - Method and device for sending control information and method and device for receiving control information

Info

Publication number: CN108271162B
Application number: CN201611262979.5A
Authority: CN
Inventors: 吕永霞; 马蕊香
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2021-01-01
Anticipated expiration: 2036-12-30
Also published as: CN108271162A

Abstract

The embodiment of the application provides a method and a device for sending control information and a method and a device for receiving control information, which can reduce resource fragmentation and improve transmission performance. The method comprises the following steps: the method comprises the steps that first control information is sent to second equipment by first equipment, the first control information comprises information of first time-frequency resources, the first time-frequency resources at least bear first data, and the first data comprises first bits obtained after channel coding of a first information block; the first device sends second control information to the second device, the second control information includes information of a second time-frequency resource, the second time-frequency resource at least bears second data, the second data includes a second bit obtained after a first information block is subjected to channel coding, the second time-frequency resource is located in a pre-configured first resource region, the first resource region is used for bearing a first service but not used for bearing a second service, and the first data and the second data belong to data of the first service.

Description

Method and device for sending control information and method and device for receiving control information

Technical Field

The embodiments of the present application relate to the field, and more particularly, to a method and an apparatus for transmitting control information and a method and an apparatus for receiving control information.

Background

Enhanced Mobile Broadband (enhanced Mobile Broadband, abbreviated as "eMBB"), Ultra-Reliable and Low Latency Communication (Ultra-Reliable and Low Latency Communication, abbreviated as "URLLC"), and mass Machine Type Communication (mass Machine Type Communication, abbreviated as "mtc", or mass internet of things Communication) are three general types of typical application scenarios in future fifth-generation (abbreviated as "5G") Communication.

The 5G communication system needs to support multiple services simultaneously on the same carrier, and needs to support dynamic sharing of spectrum resources for multiple services. For example, URLLC traffic requires high latency (e.g., uplink and downlink may be 0.5 milliseconds (ms)) and reliability (e.g., the transmission success probability may reach 99.99999% within 1 ms), and eMBB traffic requires slightly low latency (e.g., uplink and downlink may be 10ms) and reliability (e.g., the transmission success probability may be 99.9%). When the network device performs data transmission of the eMBB service, if there is a URLLC service that arrives and needs to be transmitted, the network device may preferentially allocate resources originally allocated to a part of the eMBB data (for example, referred to as target data) to the URLLC service for transmission of the URLLC data, and not transmit the target data that is prepared to be transmitted through the part of resources in advance.

Currently, a retransmission (or complementary transmission) mechanism is known, in which the portion of data (i.e., the target data) that is unsuccessfully transmitted in the eMBB can be retransmitted at the same frequency domain position in the next period. However, since the URLLC service has higher requirements for delay and reliability, the network device is more likely to allocate wider frequency domain resources and narrower time domain resources for the URLLC service than the eMBB service. Moreover, some URLLC services are sporadic and may occupy a plurality of resources discontinuously in one period. If resources are allocated to the eMBB data continuously transmitted in the next period according to the resources occupied by the URLLC service, fragmentation of the resources in the next period may be caused, and data transmission in the next period is affected, which not only brings a challenge to resource scheduling, but also may generate a continuous effect on data transmission.

Disclosure of Invention

The embodiment of the application provides a method and a device for sending control information and a method and a device for receiving control information, which can reduce resource fragmentation and improve transmission performance.

In a first aspect, a method for sending control information is provided, including:

the method comprises the steps that first control information is sent to second equipment by first equipment, the first control information comprises information of first time-frequency resources, the first time-frequency resources at least bear first data, and the first data comprises first bits obtained after channel coding of a first information block;

the first device sends second control information to the second device, where the second control information includes information of a second time-frequency resource, the second time-frequency resource at least carries second data, the second data includes a second bit obtained by channel coding the first information block, the second time-frequency resource is located in a pre-configured first resource region, the first resource region is used for carrying a first service but not used for carrying a second service, and the first data and the second data belong to data of the first service.

Optionally, the first bit includes a part or all of bits obtained after the first information block is channel coded, the second bit includes a part or all of bits obtained after the first information block is channel coded, and the first bit and the second bit are partially the same or completely the same.

The first data is configured to be transmitted on a first time-frequency resource, and a part or all of the resources (denoted as third time-frequency resources for convenience of differentiation and description) in the first time-frequency resource may be occupied by data of a second service with a higher priority, so that the part or all of the data (denoted as third data for convenience of differentiation and description) in the first data is not transmitted, and therefore, the third data needs to be retransmitted. Or, the third data may also be transmitted using a third time-frequency resource, but due to interference or the like, the receiving end device (for example, the receiving end device may be the second device or another device communicating with the second device) may not correctly demodulate the third data, and the third data needs to be retransmitted. In this embodiment of the application, the third data may be complemented by transmitting the second data, where the second bits corresponding to the second data at least include the third bits (i.e., part or all of the first bits) corresponding to the third data.

In the method for sending control information according to the embodiment of the application, the first device allocates the second time-frequency resource for the second device from the preconfigured first resource region to carry the second data, so that multiple pieces of complementary transmission data affected by factors such as resource occupation or interference in the data transmission process can still be transmitted by using the resources in the same block region, resource fragmentation caused by complementary transmission of multiple pieces of data in the prior art is avoided, and convenience is provided for resource scheduling. And the control information is sent to indicate the first time-frequency resource and the second time-frequency resource, so that the receiving end equipment can combine and decode the first data and the second data, the decoding success rate of the first information block can be improved, the influence of high-priority data on low-priority data transmission is reduced, and the transmission performance is improved.

In one possible design, for better resource scheduling, a new resource unit is defined for the resources in the first resource region, and for convenience of differentiation and description, the new resource unit is referred to as the first resource unit.

Optionally, before the first device sends the second control information to the second device, the method further includes:

the first device determines, according to a number of a starting Physical Resource Block (PRB) of the first time-frequency Resource and a number of first Resource units included in a Resource of the first Resource region, a number of starting first Resource units of the second time-frequency Resource in the first Resource region, where the Resource of the first Resource region includes a plurality of first Resource units; alternatively, the first and second electrodes may be,

the first device determines the number of the last first resource unit of the second time-frequency resource in the first resource region according to the number of the last PRB of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region, wherein the resource of the first resource region comprises a plurality of first resource units.

Optionally, the information of the second time-frequency resource includes resource size information of the second time-frequency resource.

Optionally, the information of the second time frequency resource comprises information of a location of the second time frequency resource in the first resource region and resource size information of the second time frequency resource,

wherein the information of the position of the second time-frequency resource in the first resource region includes information of a number of a starting first resource unit of the second time-frequency resource in the first resource region; alternatively, the first and second electrodes may be,

the information of the position of the second time-frequency resource in the first resource region comprises information of the number of the last first resource unit of the second time-frequency resource in the first resource region;

wherein the resources of the first resource region comprise a plurality of first resource units.

Optionally, the first device may send the first Control information and the second Control information to the second device through Physical layer signaling (for example, a Physical Downlink Control Channel ("PDCCH").

Optionally, the method further comprises:

the first device sends indication information of the first resource region to the second device, wherein the indication information of the first resource region indicates the position of the first resource region configured by the first device in time-frequency resources and the size of resources contained in the first resource region.

Optionally, the first device may configure the first Resource region in advance, and notify each device (e.g., including the second device) communicating with the first device of the indication information of the first Resource region in a manner of high-layer signaling (e.g., Radio Resource Control ("RRC") message) or broadcasting.

Optionally, the method further comprises:

the first device sends the indication information of the first resource unit to the second device, wherein the indication information of the first resource unit indicates the size of one first resource unit.

Alternatively, the first device may notify, by higher layer signaling or broadcast, indication information of the first resource unit to devices (including, for example, the second device) communicating with the first device.

Optionally, the method further comprises:

the first device sends indication information of a third time-frequency resource to the second device, wherein the indication information of the third time-frequency resource indicates the position and the resource size of the third time-frequency resource in the first time-frequency resource, and the third time-frequency resource is part or all of the first time-frequency resource.

Therefore, the receiving end device receives the first data on the first time-frequency resource and receives the second data on the second time-frequency resource, and can determine which part of the first data corresponds to the second data transmitted in a complementary manner according to the starting position and the resource size of the third time-frequency resource in the first time-frequency resource, so that the received data can be merged and decoded to obtain the feedback information for the first information block.

Optionally, the indication information of the third time-frequency resource comprises a bitmap,

the sending, by the first device, the indication information of the third time-frequency resource to the second device includes:

the first device sends the bitmap to the second device, where the bitmap is used to indicate the third time-frequency resource allocated to the second service in the first time-frequency resource.

the first equipment allocates the second time-frequency resource for the second equipment from the pre-configured first resource region according to a third time-frequency resource, so that the number of modulation symbols carried by the second time-frequency resource is greater than or equal to the number of modulation symbols carried by the third time-frequency resource; or, the number of channel coding bits corresponding to the modulation symbol carried by the second time-frequency resource is greater than or equal to the number of channel coding bits corresponding to the modulation symbol carried by the third time-frequency resource, where the third time-frequency resource is a part or all of the first time-frequency resource.

That is to say, the second time-frequency resource allocated by the first device to the second device may be determined according to the size of the resource required by the second data that needs to be transmitted, and the second data is determined according to the third time-frequency resource, so that the second time-frequency resource may be determined according to the third time-frequency resource, that is, the size of the resource of the second time-frequency resource may be greater than or equal to the size of the resource of the third time-frequency resource.

Optionally, before the first device allocates the second time-frequency resource to the second device from the preconfigured first resource region according to a third time-frequency resource, the method further includes:

the first device allocates a third time-frequency resource for a third device from a pre-configured second resource region, the third time-frequency resource is used for bearing data of a second service, the resource occupied by the second resource region is not overlapped with the resource occupied by the first resource region, and the second resource region is used for bearing the first service and the second service.

Optionally, the method further comprises:

and the first equipment sends the indication information of the third time-frequency resource to the third equipment, wherein the indication information of the third time-frequency resource is used for indicating the first equipment to send the third time-frequency resource allocated to the third equipment.

In this embodiment, the first device may send, to at least the second device and the third device, indication information of the third time-frequency resource. For the second device, since the third time-frequency resource may be a resource originally configured to the second device for data transmission of the first service, but the third time-frequency resource is occupied due to the higher priority of the second service, the second device needs to prohibit data transmission on the third time-frequency resource according to the indication information of the third time-frequency resource. It can be understood that the indication information of the third time-frequency resource may also be sent to a device performing data transmission of the first service with the second device, so as to indicate that the device prohibits the data transmission of the first service on the third time-frequency resource; for the third device, since the resource for data transmission of the second service is configured for the third device, the third device needs to perform data transmission of the second service on the third time-frequency resource according to the indication information of the third time-frequency resource. The indication information of the third time-frequency resource sent by the first device to the second device and the indication information of the third time-frequency resource sent by the first device to the third device may be the same indication information or different indication information. That is, the manner in which the first device indicates the third time-frequency resource to the second device and the third device may be the same or different.

and the first equipment receives supplementary transmission indicating information, wherein the supplementary transmission indicating information indicates whether the first equipment needs to configure resources for supplementary transmission data.

Since the receiving end device can restore the original information block through the error correction capability of the channel coding, under the condition of restoring the original information block, the lost original data does not need to be subjected to supplementary transmission. The first device determines whether to allocate resources for the supplementary transmission data according to the receiving supplementary transmission indication information sent by the receiving end device, so that unnecessary resource scheduling can be reduced, the overhead of transmission resources can be reduced, and the transmission efficiency can be improved.

In a second aspect, a method for receiving control information is provided, including:

the method comprises the steps that second equipment receives first control information sent by first equipment, wherein the first control information comprises information of first time-frequency resources, the first time-frequency resources at least bear first data, and the first data comprises first bits obtained after channel coding of a first information block;

the second device receives second control information sent by the first device, where the second control information includes information of a second time-frequency resource, the second time-frequency resource at least carries second data, the second data includes a second bit obtained by channel coding the first information block, the second time-frequency resource is located in a pre-configured first resource region, the first resource region is used for carrying a first service but not used for carrying a second service, and the first data and the second data belong to data of the first service.

The first data is configured to be transmitted on the first time-frequency resource, and a part or all of the resources (denoted as third time-frequency resources for convenience of differentiation and description) in the first time-frequency resource may be preferentially occupied by data of the second service, so that a part or all of the data (denoted as third data for convenience of differentiation and description) in the first data is not transmitted, and therefore, the third data needs to be retransmitted. Or, the third data may also be transmitted using a third time-frequency resource, but due to interference or the like, the receiving end device (for example, the receiving end device may be the second device or another device communicating with the second device) may not correctly demodulate the third data, and the third data needs to be retransmitted. In this embodiment of the application, the third data may be complemented by transmitting the second data, and therefore, the second bits corresponding to the second data at least include the third bits (i.e., part or all of the first bits) corresponding to the third data.

In the method for receiving control information in the embodiment of the application, the first device allocates the second time-frequency resource for the second device from the preconfigured first resource region to carry the second data, so that multiple pieces of complementary transmission data affected by factors such as resource occupation or interference in the data transmission process can still be transmitted by using the resources in the same block region, resource fragmentation caused by complementary transmission of multiple pieces of data in the prior art is avoided, and convenience is provided for resource scheduling. And the control information is sent to indicate the first time-frequency resource and the second time-frequency resource, so that the receiving end equipment can combine and decode the first data and the second data, the decoding success rate of the first information block can be improved, the influence of high-priority data on low-priority data transmission is reduced, and the transmission performance is improved.

Optionally, the method further comprises:

the second device determines the number of the initial first resource unit of the second time-frequency resource in the first resource region according to the number of the initial Physical Resource Block (PRB) of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region, wherein the resource of the first resource region comprises a plurality of first resource units; alternatively, the first and second electrodes may be,

the second device determines the number of the last first resource unit of the second time-frequency resource in the first resource region according to the number of the last PRB of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region;

the information of the position of the second time-frequency resource in the first resource region comprises information of the number of the initial first resource unit; alternatively, the first and second electrodes may be,

the information of the position of the second time-frequency resource in the first resource region comprises the information of the number of the last first resource unit;

the resources of the first resource region include a plurality of first resource units.

Optionally, the first device may send the first control information and the second control information to the second device through physical layer signaling.

Optionally, the method further comprises:

the second device receives indication information of the first resource region sent by the first device, wherein the indication information of the first resource region indicates the position of the first resource region configured by the first device in time-frequency resources and the size of resources included in the first resource region.

Optionally, the first device may configure a first resource region in advance, and notify each device (e.g., including the second device) communicating with the first device of indication information of the first resource region through a high-layer signaling or a broadcast manner.

Optionally, the method further comprises:

and the second equipment receives the indication information of the first resource unit sent by the first equipment, wherein the indication information of the first resource unit is used for indicating the time-frequency resource occupied by one first resource unit.

Optionally, the method further comprises:

the second device receives indication information of a third time-frequency resource sent by the first device, wherein the indication information of the third time-frequency resource indicates a position and a resource size of the third time-frequency resource in the first time-frequency resource, and the third time-frequency resource is part or all of the first time-frequency resource.

Optionally, the indication information of the third time-frequency resource comprises a bitmap, and,

the second device receives indication information of a third time-frequency resource sent by the first device, and the indication information includes:

and the second equipment receives the bitmap sent by the first equipment, wherein the bitmap is used for indicating the third time-frequency resources allocated to the second service in the first time-frequency resources.

Optionally, before the second device receives the second control information sent by the first device, the method further includes:

and the second equipment sends supplementary transmission indicating information to the first equipment, wherein the supplementary transmission indicating information indicates whether the first equipment needs to configure resources for supplementary transmission data or not.

In a third aspect, an apparatus for sending control information is provided, where the apparatus is configured to perform the method in the first aspect and any possible implementation manner of the first aspect. In particular, the apparatus may comprise means for performing the method of the first aspect and any possible implementation manner of the first aspect.

In a fourth aspect, an apparatus for receiving control information is provided to perform the second aspect and the method in any possible implementation manner of the second aspect. In particular, the apparatus may comprise means for performing the second aspect and the method of any possible implementation of the second aspect.

In a fifth aspect, there is provided an apparatus for sending control information, including a memory for storing a computer program and a processor for calling and running the computer program from the memory, so that the apparatus for sending control information performs the method of the first aspect and any possible implementation manner of the first aspect.

In a sixth aspect, there is provided an apparatus for receiving control information, comprising a memory for storing a computer program and a processor for calling and executing the computer program from the memory, so that the apparatus for receiving control information performs the second aspect and the units of the method in any possible implementation manner of the second aspect.

In a seventh aspect, a computer program product is provided, the computer program product comprising: computer program code which, when run by a processing unit, a transceiver unit or a processor, transceiver of a first device in the first aspect, causes the first device to perform the method of the first aspect and any possible implementation manner of the first aspect.

In an eighth aspect, there is provided a computer program product comprising: computer program code which, when run by a processing unit, a transceiver unit or a processor, transceiver of a second device in the second aspect, causes the second device to perform the second aspect and the method in any possible implementation of the second aspect.

In a ninth aspect, a computer-readable storage medium is provided for storing a computer program comprising instructions for performing the first aspect and the method of any possible implementation of the first aspect.

A tenth aspect provides a computer-readable storage medium for storing a computer program comprising instructions for performing the second aspect and the method of any possible implementation of the second aspect.

With reference to the foregoing aspects and various possible implementations, in some possible implementations, the resource size information of the second time-frequency resource includes information of the number of the first resource units included in the second time-frequency resource.

With reference to the foregoing aspects and various possible implementations, in some possible implementations, the first time-frequency resource is located in a second resource region, and the second resource region is used to carry a first service and a second service.

With reference to the foregoing aspects and various possible implementations, in some possible implementations, the priority of the second service is higher than the priority of the first service.

The resource scheduling method can avoid resource fragmentation caused by the supplementary transmission of a plurality of data in the prior art, provides convenience for resource scheduling, and simultaneously reduces the influence on data transmission, thereby improving the transmission performance.

Drawings

Fig. 1 is a schematic diagram of a communication system suitable for a method and an apparatus for transmitting control information and a method and an apparatus for receiving control information according to an embodiment of the present application.

Fig. 2 is a schematic diagram of URLLC traffic dynamically occupying scheduled resources of eMBB traffic.

Fig. 3 is a schematic flow chart of a transmission process of control information according to an embodiment of the present application.

Fig. 4 is a schematic diagram of resource scheduling according to an embodiment of the present application.

Fig. 5a and 5b are schematic diagrams of a first resource unit according to an embodiment of the present application.

Fig. 6 is a schematic diagram of an indication bitmap according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of an apparatus for transmitting control information according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of an apparatus for receiving control information according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

With the development of communication technology and the new demand for wireless communication for life use and industrial use that are gradually emerging in real life, the types of services that can be supported by communication systems will be more and more diversified in the future. Some emerging services have significantly higher transmission delay requirements than conventional services, for example, URLLC service has higher transmission delay requirements than eMBB service.

Fig. 1 is a schematic diagram of a communication system 100 suitable for use in the method and apparatus for transmitting control information and the method and apparatus for receiving control information according to the embodiment of the present application. As shown in fig. 1, the communication system 100 includes at least two communication devices, e.g., a first communication device 110 and a second communication device 120, and supports simultaneous transmission of data for at least two services on the same carrier. For example, the first communication Device may be a network Device (e.g., a base station), the second communication Device may be a terminal Device (e.g., a User Equipment (UE)), or both the first communication Device and the second communication Device may be terminal devices (e.g., a Device to Device (D2D) communication Device, a Machine to Machine (M2M) communication Device); the communication system can simultaneously support data transmission of at least two services of eMBB service, URLLC service and mMTC service.

It should be understood that the specific contents of the first communication device and the second communication device and the specific contents of the services supported by the communication system listed above are only exemplary, and should not constitute any limitation to the present application.

In addition, the present application is not particularly limited as to the specific number of the first communication device and the second communication device. For example, as shown in fig. 2, the first communication device 110 may be a base station, and the second communication device 120 may be a plurality of UEs within the coverage area of the base station and communicating with the base station. The plurality of UEs may include UE #1 and UE #2, where the UE #1 may perform data transmission of an eMBB service with the base station, and the UE #2 may perform data transmission of a URLLC service with the base station; alternatively, the UE #1 may perform data transmission of the eMBB service and the URLLC service simultaneously with the base station. This is not particularly limited in the present application.

It should be appreciated that the next generation mobile communication system will support not only the conventional communication service but also URLLC service, which is generally an emergency service and has high requirements on transmission reliability and transmission delay, and generally requires 99.999% of transmission reliability within 1 ms. In order to meet the service requirements of the URLLC service on ultra-high reliability and ultra-low delay, the system needs to allocate sufficient frequency domain resources for the URLLC service to transmit the URLLC service, but the URLLC service is generally a sudden emergency service, and the service data packet is generally small, so that when no service arrives, the resources allocated for the URLLC service will cause a certain waste of resources. Meanwhile, for the eMBB service, a large frequency domain resource is needed due to its huge service data. Therefore, the wireless communication system needs to consider the scenario that different services are dynamically multiplexed on the same spectrum. For the scenario of dynamic resource sharing between the URLLC service and the eMBB service, the URLLC service has higher requirements on delay and reliability than the eMBB service, so that once the URLLC service arrives in the system, the resource currently used by the eMBB service can be dynamically occupied for transmission.

Fig. 2 shows a scenario in which URLLC traffic dynamically occupies scheduled resources of eMBB traffic. As can be seen from fig. 2, since the scheduling period of the eMBB is greater than the scheduling period of the URLLC service, in the scheduled resources of the eMBB service, the sudden arrival of the URLLC service occupies the resources already allocated to the eMBB service, and this part of resources is preferentially used for the URLLC service, while the eMBB data originally configured on this part of resources is knocked out. The data receiving performance of the eMB user is affected by the URLLC user occupying the eMB user's resources for data transmission. In the prior art, the data to be knocked off can be sent to the user in a continuous transmission mode. However, since the characteristics of the URLLC service itself determine that the occupied resources are discrete, if the resources are allocated to the punched-out eMBB data in the same frequency domain position in the next scheduling period according to the occupied resources, resource fragmentation in the next scheduling period may be caused (as shown in fig. 2), so that data transmission in the next period is affected, and meanwhile, a challenge is brought to resource scheduling.

Referring to fig. 2 again, in the N-1 th cycle, the network device transmits the eMBB data to UE #1 and UE #2, respectively, and in the N-1 th cycle, due to the arrival of the URLLC data, the network device allocates a part of the resources (for convenience of explanation, referred to as resource 1) originally allocated to UE #1 to the URLLC data, and the data (for convenience of explanation, referred to as data 1) of UE #1 corresponding to the resource 1 is discarded. Here, it should be noted that the data 1 corresponding to the resource 1 may be understood as data configured in advance for transmission (or bearer), but the data is knocked out because the resource is occupied by URLLC data. Thus, the data 1 is not actually carried on the resource 1, but only the resource 1 is pre-allocated to the data 1. In the nth cycle, since the data 1 in the (N-1) th cycle is knocked out, the data needs to be continuously transmitted (or complementarily transmitted) in the nth cycle.

In addition to the above-described scenarios, in order to meet the transmission requirement of the service with high transmission delay requirement, the URLLC service can implement transmission by separately occupying or multiplexing (e.g., using a superposition scheme) the allocated time-frequency resources of the eMBB service. In this case, the URLLC traffic data is essentially a limited interference for the original eMBB data on the implementation multiplexing resources. Taking data 1 as the eMBB service data as an example, only a small part of the time-frequency resources for carrying data 1 may be occupied or multiplexed by a service with a higher delay requirement (data 1 is affected), that is, only a small part of data 1 is occupied or multiplexed in actual transmission (the time-frequency resources corresponding to the small part are affected), which results in a decrease in the correct receiving probability of the whole data 1.

Furthermore, a development trend of communication systems is to adopt increasingly complex networking modes, such as hybrid networking of macro base stations and small base stations, allowing different duplex modes to be adopted in the same frequency band or adjacent frequency bands, and the like. The purpose of this is to increase the efficiency of spectrum usage to better utilize the limited spectrum resources. With such a trend, it is becoming more and more obvious that the wireless signal experiences uneven interference during actual transmission. For example, the actual transmission of data (e.g., data 1) is strongly interfered (data 1 is affected), but the interfered portion only occupies a small portion of data 1 (the time-frequency resource corresponding to the small portion is the affected time-frequency resource).

In the prior art, if the eMBB service (e.g., data 1) is not correctly received in the last scheduling period (e.g., nth-1 cycle), the network device may continue to transmit in the same frequency location of the next period (e.g., nth cycle), and the duration length of the continuous transmission (e.g., the number of occupied OFDM symbols) depends on the resource occupation of the last period. That is, a part of the resources of the nth period shown in fig. 2 needs to be continuously transmitted.

When multiple UEs perform eMBB service transmission by Frequency Division Multiplexing (FDM), the Frequency domain resources allocated to each UE are different. When the frequency domain resources allocated to each UE are occupied, resource fragmentation in the next period may be caused by retransmission, and since available resources left for the eMBB are irregular in time (that is, time domain starting positions of different frequency domain positions are different), a challenge is brought to resource scheduling of the eMBB, and transmission of the eMBB service is also seriously affected.

In view of this, the present application provides a method for sending control information and a method for receiving control information, which can reduce fragmentation of resources and improve transmission performance.

It should be understood that the technical solution of the present application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) System, an Advanced Long Term Evolution (LTE-a) System, a Universal Mobile Telecommunications System (UMTS), or a next generation communication System (e.g., 5G).

Various embodiments are described herein in connection with a network device. The Network device may be a device such as a Network device for communicating with a Mobile device, and the Network device may be an ACCESS POINT (AP) in a WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (eNB) in LTE, a relay Station or an ACCESS POINT, a Network device in a vehicle-mounted device, a wearable device, a future 5G Network, or a Network device in a future evolved Public Land Mobile Network (PLMN), and the like.

Furthermore, various embodiments are described herein in connection with a terminal device. A terminal device can also be called a user device, access terminal, subscriber unit, subscriber station, mobile, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user equipment. The terminal device may be a Station (ST) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, such as a terminal device in a 5G network or a terminal device in a future evolved PLMN.

In the following embodiments, a sending end device is taken as a network device, and a receiving end device is taken as a UE as an example to describe the resource scheduling method of the present application, but this should not limit the present application at all, and the embodiments of the present application are also applicable to communication between UEs and between machines.

In the embodiment of the present application, the control information (for example, including the first control information, the second control information, and the third control information) is information for controlling transmission of an information block (specifically, a modulation symbol generated after the information block is coded and modulated), and for example, the control information may include information for indicating a resource for transmitting the information block, information for indicating a modulation and coding scheme of the information block, information for indicating that the information block is initially transmitted or retransmitted, information for indicating a Hybrid Automatic Repeat reQuest (HARQ) process corresponding to the information block, information for indicating a resource used by feedback information for the information block, and the like.

It should be understood that the format and included content of the Control Information (e.g., including the first Control Information, the second Control Information, and the third Control Information) in the embodiment of the present application may be similar to the format and included content of Downlink Control Information (DCI) in the prior art, and a detailed description thereof is omitted here to avoid redundancy.

In this embodiment, the information Block may include a Transport Block (TB), or the information Block may include a Code Block (CB), or the information Block may include a CB group (including at least one CB), and the like, which are not particularly limited in this application, and other data partitioning units that can be objects of coded modulation all fall within the scope of the present application.

In the embodiment of the present application, multiple pieces of control information for multiple information blocks may be transmitted between a first device and a second device, and the generation and transmission processes of the control information for each information block are similar, and for convenience of understanding, the following takes the process of transmitting the control information for the first information block between a network device and a UE as an example, and details of a method for transmitting the control information and a method for receiving the control information according to the embodiment of the present application are described in detail with reference to fig. 3 without loss of generality.

It can be understood that, in this embodiment, the network device is an example of a first device, the first UE is an example of a second device, and the second UE and the third UE are examples of a third device, and the network device and the first UE may be understood as a sending end device and a receiving end device of a first information block (for example, corresponding to first data and second data), or the network device and the first UE may be understood as a receiving end device and a sending end device of the first information block. Both the second UE and the third UE may be understood as a transmitting end device or a receiving end device for other data (e.g., the second information block). The network device may be communicatively connected to a plurality of UEs (e.g., may include the first UE, the second UE, the third UE, and the like) and schedule resources for uplink and downlink data transmission of each UE. It should be understood that the network device, the first UE, the second UE, and the third UE are exemplary illustrations of the first device and the second device, the sending end device, and the receiving end device for ease of understanding, and should not constitute any limitation to the present application, for example, the first device and the second device may also be both UEs; alternatively, the data transmitting end device may be a first UE, and the data receiving end device may be a second UE, and the like, which is not particularly limited in this application.

It should be noted that, when data is transmitted between the network device and the UE, the network device may schedule resources for the UE, and the network device performs downlink transmission based on the resources scheduled for the UE, or the UE may perform uplink transmission based on the resources scheduled for the UE by the network device. In communication systems such as D2D, M2M, a base station may also schedule resources for two or more terminal devices communicating with each other, or a terminal device may autonomously configure resources for data transmission. In this embodiment, the first device may perform resource scheduling for the device performing data transmission, and notify the device performing data transmission of the scheduled resource information by sending the control information. The subject of execution of resource scheduling is not particularly limited in the present application. In this embodiment of the present application, the first device corresponds to a device for resource scheduling, that is, a device for sending control information, and it can be understood that the first device may be a network device or a terminal device.

It should be understood that fig. 3 is a schematic flow chart of a transmission process of control information according to an embodiment of the present application. It should be understood that fig. 3 shows detailed communication steps or operations of the method, but these steps or operations are only examples, and other operations or variations of the various operations in fig. 3 may also be performed by embodiments of the present application. Moreover, the various steps in FIG. 3 may each be performed in a different order than presented in FIG. 3, and it is possible that not all of the operations in FIG. 3 may be performed.

It should also be understood that, in the embodiments of the present application, the "first," "second," and "third" are only used for distinguishing different objects, for example, distinguishing different UEs, different time-frequency resources, different data, and the like, and shall not constitute any limitation to the present application.

Fig. 3 shows a schematic flow chart of a method 300 of transmitting control information of an embodiment of the present application, described from the perspective of device interaction. As shown in fig. 3, the method 300 includes:

s302, the network device sends first control information to the first UE, where the first control information includes information of the first time-frequency resource.

In particular, the network device may allocate resources for UEs that are within its coverage area and performing data transmission. For example, the network device may perform data transmission of a first service (e.g., an eMBB service) with a first UE, and the network device may allocate uplink and Downlink resources for the first UE and notify information of time-frequency resources (for convenience of differentiation and description, referred to as first time-frequency resources) to the first UE through a Control Channel (e.g., a Physical Downlink Control Channel ("PDCCH")) so that the first UE transmits data (for convenience of differentiation and description, referred to as first data) on the first time-frequency resources allocated by the network device.

S304, the network equipment and the first UE transmit first data.

The network device and the first UE may transmit the first data based on the first control information. The first data may be a part or all of bits (for convenience of distinguishing and illustration, referred to as original bits) obtained by channel coding an information block (for convenience of distinguishing and illustration, referred to as a first information block).

It should be understood that the above listed correspondence relationship between the first data and the first information block is only an exemplary illustration, and the first data may also include bits obtained by channel coding other information blocks (e.g., the second information block).

The transmission process of the first data may be that a sending device (e.g., one of the network device and the first UE) performs modulation mapping and resource mapping on the data # a to generate a first data signal, and sends the first data signal to a receiving device (e.g., the other of the network device and the first UE), and the receiving device receives the first data signal and recovers the first data signal, for example, performs resource mapping and demodulation mapping to recover the first data signal, and to avoid redundant description, a description of the same or similar cases is omitted below.

S306, the network device sends second control information to the first UE, where the second control information includes information of a second time-frequency resource.

If the network device determines that a part of resources is occupied by data (e.g., fourth data) of the second service or interfered in the last transmission period, that is, there is second data to be retransmitted, the network device may allocate a second time-frequency resource to the second data from the first resource region.

In this embodiment, the second time-frequency resource is a resource located in a preconfigured first resource region. The first resource region is a resource predefined as being used only for transmitting data of the first service. Or, the resources of the first resource region are used for carrying data of the first service but not used for carrying data of the second service. That is to say, the first resource region may be used to transmit supplementary transmission data, and may also be used to carry data of a normally transmitted first service. And, in the case that there is retransmission-complementing data to be transmitted, the network device may preferentially allocate resources for the retransmission-complementing data from the first resource region.

Here, it should be noted that the second data may include a second bit obtained by channel coding the first information block. The second bits may include some or all of the original bits except the first bits, and the second bits may also include some or all of the first bits. That is, the first bit and the second bit may have a partial intersection or may not have an intersection at all, and this is not particularly limited in this application. In this embodiment of the present application, a Hybrid Automatic Repeat reQuest (HARQ) process corresponding to the second data is the same as a HARQ process corresponding to the first data.

Specifically, in S306, the information of the second time-frequency resource includes information of a position of the second time-frequency resource in the first resource region and size information of the second time-frequency resource. In this embodiment, the network device may indicate the location information of the second time-frequency resource by a display indication manner or an implicit indication manner. If the location information of the second time-frequency resource is indicated by an implicit indication mode, the information of the second time-frequency resource included in the second control information includes resource size information of the second time-frequency resource; if the location information of the second time-frequency resource is indicated by a display indication, the information of the second time-frequency resource included in the second control information may include the location information and the resource size information of the second time-frequency resource.

Implicit indication:

the network device and the first device may determine a starting position or an ending position of the second time-frequency resource according to a preset rule, and specifically, the starting position may be represented as a starting first resource unit of the second time-frequency resource (the first resource unit will be described in detail with reference to fig. 5a and 5b later), or the ending position may be represented as an ending first resource unit.

Optionally, before S306, the method 300 further includes:

the network equipment determines the number of the initial first resource unit of the second time-frequency resource in the first resource region according to the number of the initial physical resource block PRB of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region; alternatively, the first and second electrodes may be,

the network device determines the number of the last first resource unit of the second time-frequency resource in the first resource region according to the number of the last PRB of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region.

Correspondingly, the first UE determines the number of the starting first resource unit of the second time-frequency resource in the first resource region according to the number of the starting PRB of the first time-frequency resource and the number of the first resource units included in the resource of the first resource region; alternatively, the first and second electrodes may be,

and the first UE determines the number of the last first resource unit of the second time-frequency resource in the first resource region according to the number of the last PRB of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region.

Wherein the resource of the first resource region comprises a plurality of first resource units.

That is, the network device and the first UE may determine the starting position or the ending position of the second time-frequency resource according to a preset rule.

In a possible implementation manner, assuming that the number of the starting (or ending) PRB of the first time-frequency resource is m, and the third time-frequency resource region includes k first resource units, the number of the starting first resource unit (or ending first resource unit) of the second time-frequency resource is n ═ mod (m, k), where mod () represents the remainder.

And displaying indication:

optionally, the information of the second time-frequency resource includes information of a location of the second time-frequency resource in the first resource region and resource size information of the second time-frequency resource.

Optionally, the information of the position of the second time-frequency resource in the first resource region includes information of a number of a starting first resource unit; alternatively, the first and second electrodes may be,

the information of the position of the second time-frequency resource in the first resource region includes information of the number of the last first resource unit.

In this indication manner, the network device may determine the starting position or the ending position of the second time-frequency resource in advance according to the manner of determining the second time-frequency resource described in the above implicit indication manner, and the network device may also determine the starting position or the ending position of the second time-frequency resource according to the allocation condition of the resource, which is not particularly limited in this application.

Optionally, the resource size information of the second time-frequency resource includes information of the number of first resource units included in the second time-frequency resource.

Alternatively, the network device may send the second control information to the first UE through physical layer signaling (e.g., PDCCH).

Optionally, before S306, the method 300 further includes:

the network equipment divides the resources of the first resource area according to the time-frequency resources occupied by the first resource units to obtain a plurality of first resource units;

the network equipment numbers the first resource units obtained by dividing the resources of the first resource region;

the network device determines the number of the starting first resource unit of the second time-frequency resource in the first resource region, or the number of the ending first resource unit of the second time-frequency resource in the first resource region.

Correspondingly, the network device divides the second time-frequency resource according to the time-frequency resource occupied by one first resource unit, and obtains the number of the first resource units contained in the second time-frequency resource.

Optionally, the method 300 further comprises:

s308, the network equipment sends the indication information of the first resource area to the first UE.

Correspondingly, the first UE receives indication information of a first resource zone sent by the network equipment.

Specifically, the first resource region may be pre-configured by the network device, and then notify UEs (e.g., the first UE and the second UE) in a coverage area of the network device of the indication information of the first resource region through a higher layer signaling (e.g., an RRC message) or a system broadcast manner, or may also notify UEs in the coverage area of the network device of the indication information of the first resource region through a physical layer signaling (e.g., a PDCCH). That is, the first resource region may be configured semi-statically or dynamically, which is not particularly limited in this application. The indication information of the first resource region may include location information of the first resource region, information of a resource size included in the first resource region, and the like.

Correspondingly, in the time-frequency resource in one transmission period, a second resource region is also configured in advance, and the resource of the second resource region can be used for transmitting the data of the first service and the data of the second service. And, the resources of the second resource region and the resources of the first resource region do not overlap in both time domain and frequency domain. In the embodiment of the present application, the first time-frequency resource may be located in the second resource region.

Similar to the first resource region, the second resource region may also be notified to UEs within the coverage of the network device by means of higher layer signaling, system broadcast, or physical layer signaling. The indication information of the second resource region may include location information of the second resource region, information of a resource size included in the second resource region, and the like.

It should be noted that, when the network device allocates resources for the data (for example, the second data) that needs to be retransmitted, different UEs need to be distinguished. For example, if multiple resources are occupied by the data of the second service in the last transmission period and the data to be retransmitted is for multiple UEs, the network device may allocate resources for retransmitting the data to each UE, respectively for different UEs. In this case, the network device may allocate resources to each UE from the first resource region in a Time Division Multiplexing (TDM) or Frequency Division Multiplexing (FDM) manner. It should be understood that the specific method for the network device to allocate resources to the plurality of UEs may be implemented by methods in the prior art, and the present application is not particularly limited thereto.

In the embodiment of the present application, the resources of the first resource region may be continuous in the time domain and the frequency domain, or may be discrete.

Typically, the resources of the first resource region may be contiguous in time domain and frequency domain, as shown in fig. 4. Fig. 4 is a schematic diagram of resource scheduling according to an embodiment of the present application. As shown in fig. 4, in the time-frequency resource in one transmission period, the first resource region may be continuous in the time domain, and occupy a portion of the entire bandwidth in the frequency domain, and the first resource region may be used only for transmitting data of the first service.

In the embodiment of the present application, due to the characteristics of the first service, the proportion of the first resource region in the time-frequency resources in the whole period is small, and in order to facilitate to indicate the resources more accurately, the first resource region is divided into smaller resource units (i.e., the first resource units shown below).

Optionally, the method 300 further comprises:

s310, the network device sends indication information of the first resource unit to the first UE.

Correspondingly, the first UE receives indication information of the first resource unit sent by the network device.

The indication information of the first resource unit is used for indicating the time-frequency resource occupied by the first resource unit.

Fig. 5a and 5b are schematic diagrams of a first resource unit according to an embodiment of the present application. As shown in the figure, the first Resource unit may continuously occupy a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain, and may occupy a Frequency domain Resource corresponding to less than one, or a plurality of Physical Resource Blocks (PRBs) in a Frequency domain. For example, one first resource unit shown in fig. 5a occupies 4 OFDM symbols in the time domain, and occupies 1/4 frequency-domain resources corresponding to PRBs in the frequency domain. For another example, one first resource unit shown in fig. 5b occupies 2 OFDM symbols in the time domain, and occupies 1/2 frequency-domain resources corresponding to PRBs in the frequency domain.

The indication information of the first resource unit may be notified to the UEs within the coverage of the network device in advance through a high layer signaling, a system broadcast, or a physical layer signaling by the network device, so that each UE determines the resource allocated to each UE by the network device according to the indication information of the first resource unit.

It should be noted that the first resource unit is a resource unit defined for better performing resource scheduling for the first service. In the embodiment of the present application, for convenience of understanding, two schematic diagrams of time-frequency resources occupied by a first resource unit are shown in fig. 5a and fig. 5b, but this should not limit the present application at all, and the present application should not be limited thereto.

Further, optionally, before S306, the method 300 further includes:

s312, the network device allocates a third time-frequency resource to a third device from a second resource region configured in advance.

The third time-frequency resource is used for carrying data of a second service, the resource of the second resource region is not overlapped with the resource of the first resource region in time domain and frequency domain, and the resource of the second resource region is used for transmitting the data of the first service and the data of the second service.

Specifically, during the transmission of the first data between the network device and the first UE, if data (for convenience of differentiation and description, referred to as fourth data) of a second service (for example, URLLC service) to be sent to the second UE suddenly arrives, the network device may allocate a part of resources (for convenience of differentiation and description, referred to as third time-frequency resources) in the first time-frequency resources to the second UE according to a size of resources required by the fourth data, so as to transmit the fourth data. That is, the third time-frequency resource is at least a part of the first time-frequency resource, and data of the first service corresponding to the third time-frequency resource (i.e., data pre-configured to be transmitted through the third time-frequency resource and denoted as third data for easy differentiation and understanding) may not be transmitted to the first UE. In other words, the third data is determined according to the third time-frequency resource.

In the embodiment of the present application, the third data includes part or all of bits (for convenience of distinction and explanation, referred to as third bits) obtained by channel coding the first information block, and the third data corresponds to the second data above. That is, the second data and the third data may correspond to the same data bits, the data bits corresponding to the second data may also include more data bits than the data bits corresponding to the third data, or the second bit and the third bit may be partially or completely.

Here, the first UE and the second UE may be the same UE or different UEs, and this is not particularly limited in the present application.

Since the network device allocates the third time-frequency resource to the second UE, the time-frequency resource (i.e., the second time-frequency resource) needs to be reallocated for the supplementary transmission of the third data, and the information of the second time-frequency resource is sent to the first UE.

Further, optionally, the method 300 further includes:

s314, the network device allocates the second time-frequency resource to the first UE from the pre-configured first resource region according to the third time-frequency resource.

The number of modulation symbols carried by the second time-frequency resource allocated to the first UE by the network equipment is more than or equal to the number of modulation symbols carried by the third time-frequency resource; or, the number of channel coding bits corresponding to the modulation symbol carried by the second time-frequency resource is greater than or equal to the number of channel coding bits corresponding to the modulation symbol carried by the third time-frequency resource.

Optionally, the modulation scheme for the second data may be different from the pre-configured modulation scheme for the first original data.

Optionally, the method 300 further comprises:

s316, the network device sends the indication information of the third time-frequency resource to the first UE.

Correspondingly, the first UE receives indication information of a third time-frequency resource sent by the network device.

The indication information of the third time-frequency resource is used to indicate the third time-frequency resource allocated by the network device for data transmission of the second service.

Specifically, when data of a second service to be sent to, for example, a second UE (i.e., an instance of a third device) arrives, the network device may allocate a third time-frequency resource, which corresponds to the first original data, to the second UE from the second resource region. At a later transmission period (e.g., the next transmission period), the network device may complement the second data by the method described above. In this case, the network device may send indication information of the third time-frequency resource to the first UE to notify the first UE to prohibit receiving data on the third time-frequency resource.

Wherein the indication information of the third time-frequency resource comprises a bitmap.

Optionally, S316 specifically includes:

the network device sends a bitmap to the first UE, where the bitmap is used to indicate a third time-frequency resource allocated to the second service in the first time-frequency resource.

In the embodiment of the present application, the bitmap indicates whether each first time-frequency resource unit in the second resource region is allocated to the second UE. Wherein the second resource unit is a resource unit defined for better configuring resources for data of the second service. The resources occupied by the second resource unit may be the same as or different from the resources occupied by the first resource unit. In the embodiment of the present application, according to a characteristic of a second service (e.g., URLLC service), the second resource unit may be a resource corresponding to a plurality of PRBs continuously occupied in a frequency domain, and a plurality of OFDM symbols continuously occupied in a time domain.

It should be understood that the resource occupied by the second resource unit is only an exemplary one, and should not be construed as limiting the application, either.

Optionally, the method 300 further comprises:

s318, the network device sends the indication information of the second resource unit to the first UE, where the indication information of the second source unit indicates a time-frequency resource occupied by the second resource unit.

Optionally, the method 300 further comprises:

and the network equipment sends third control information to the second UE, wherein the third control information comprises information of third time-frequency resources.

Correspondingly, the second UE receives the third control information sent by the network device, where the third control information includes information of the third time-frequency resource.

And the network equipment sends the information of the third time-frequency resource to the second UE so as to inform the second UE of transmitting data on the third time-frequency resource. The specific process of the information of the third time-frequency resource sent by the network device to the second UE may be carried by a PDCCH sent similarly to the process of the network device sending control information (e.g., DCI) in the prior art. And the specific process of the network device sending the information of the third time-frequency resource to the second UE is not at the core of the present application, and a detailed description of the specific process is omitted here for brevity.

Fig. 6 is a schematic diagram of an indication bitmap according to an embodiment of the present application. Fig. 6 shows a 32-bit indication bitmap. As shown in fig. 6, each cell in the indication bitmap corresponds to one second resource unit. When the cell indicates "0", it indicates that the second resource unit corresponding to the cell is not allocated to the second UE, and when the cell indicates "1", it indicates that the second resource unit corresponding to the cell is allocated to the second UE. It should be understood that the specific contents of the indication bitmap listed herein are merely exemplary and should not constitute any limitation to the present application. For example, when the cell indicates "1", it indicates that the second resource unit corresponding to the cell is not allocated to the second UE, and when the cell indicates "0", it indicates that the second resource unit corresponding to the cell is allocated to the second UE.

It should be noted that the third time-frequency resource described above is a resource allocated to the second UE for data transmission of the second service in the previous period (e.g., the first period). During this period, the network device may still allocate a fourth time-frequency resource for data transmission of the second service to a third UE (for convenience of differentiation and explanation, the third UE is referred to as a third UE, and it is understood that the third UE is another example of the third UE), as shown in fig. 4. The third time-frequency resource and the fourth time-frequency resource have similar functions and are both used for data transmission of the second service, except that the third time-frequency resource and the fourth time-frequency resource may be resources allocated for different data or different UEs. In the first period, since the third time-frequency resource is preferentially allocated to the second UE, the network device needs to allocate, at a certain period (e.g., the second period or the third period shown in fig. 4) after the first period, the second time-frequency resource to the first UE for retransmission of data (i.e., the second data); in the second period, since the fourth time-frequency resource is preferentially allocated to the third UE, the network device needs to allocate a resource (e.g., denoted as a fifth time-frequency resource) to the first UE for supplementary transmission of data (e.g., denoted as a fifth data) at a certain period after the second period (e.g., the third period shown in fig. 4), as shown in fig. 4. It can be understood that the second data and the fifth data belong to complementary transmission data, and are only knocked out by the data of the second service in different transmission periods, and complementary transmission resources are reallocated in different periods.

It should be understood that the first UE, the second UE and the third UE listed above may be the same or different UEs, and this application is not particularly limited thereto. It should also be understood that the second period listed above is a period after the first period, and the third period is a period after the second period, but the present application is not limited to the second period being a period next to the first period, and the third period being a period next to the second period.

Optionally, before S306, the method 300 further includes:

s320, the network device receives supplementary transmission indication information sent by the first UE, where the supplementary transmission indication information indicates whether the network device needs to configure resources for supplementary transmission data.

The following description will be given taking downlink transmission between the network device and the first UE as an example.

In the data transmission process, because the second service preferentially occupies the resource pre-allocated to the first service, when the data volume of the first service affected by the second service is small, the first UE can restore the original transmission block through error correction of channel coding, and under the condition, the first UE can send supplementary transmission indication information to the network device to indicate that supplementary transmission is not needed. At this time, the network device does not need to allocate resources for the complementary transmission data (e.g., the second data). However, if the amount of the affected data is large, and the first UE cannot recover the original transport block through the error correction capability of the channel coding, the first UE may send retransmission indication information to the network device to indicate that resources need to be allocated for retransmission data, and perform resource allocation and data transmission by the above method. In this case, the network device may obtain information of a resource (i.e., the third time-frequency resource) corresponding to the affected data (i.e., the third data).

Another possible scenario is that, during the transmission of the first data, the second service does not occupy the resources of the first service, but only a part of data (for example, the third data) in the first data may be affected due to interference during the transmission, or, during the transmission of the first data, the second service multiplexes resources corresponding to a part of data (for example, the third data) in the first data (that is, the data of the first service) and affects the part of data, but the network device does not know that the part of data in the transmitted first data is interfered and is not successfully received. At this time, supplementary transmission indication information may be sent to the network device by the first UE, so as to indicate an information block corresponding to unsuccessfully received data (i.e., third data), so that the network device configures resources for the interfered data according to the location of the third time-frequency resource, and performs data transmission.

It is to be understood that the data to be complemented may be the third data, and the actual complemented data may be the second data, and the second data includes at least a part or all of the third data.

It is understood that, if the network device configures resources for a device performing data communication (for example, M2M scenario, D2D scenario, etc.) as a device for resource configuration, after receiving the supplementary transmission indication information, the network device may configure resources for supplementary transmission data according to the supplementary transmission indication information.

S322, the network device transmits second data with the first UE.

The first UE may determine the location and the resource size of the second time-frequency resource in the first resource region according to the information of the second time-frequency resource and other indication information received in steps S306, S308, and S310, and further transmit the second data on the second time-frequency resource.

Further, the method 300 further includes:

and the receiving end equipment merges and decodes the received first data and the second data to obtain the feedback information aiming at the first information block.

Take uplink and downlink transmission between the network device and the first UE as an example.

If the network device and the first UE perform downlink transmission, the first UE may receive the first data on the first time-frequency resource and the second data on the second time-frequency resource according to the information of the first time-frequency resource and the information of the second time-frequency resource, which are configured for the first UE by the network device in S316 and S318, and further perform merging and decoding on the received first data and the received second data according to the information of the third time-frequency resource. The first UE may send feedback information (e.g., ACK/NACK information) to the network device based on the result of the combining decoding. The network device determines whether retransmission of the first data is required based on the received feedback information.

If the network device and the first UE perform uplink transmission, the first UE may send the first data on the first time-frequency resource and send the second data on the second time-frequency resource according to the information of the first time-frequency resource and the information of the second time-frequency resource, which are configured for the first UE by the network device in S316 and S318, where the network device correspondingly receives the first data on the first time-frequency resource and receives the second data on the second time-frequency resource. The network device further performs merging decoding on the received first data and the second data according to the information of the third time-frequency resource. The network device may send feedback information (e.g., ACK/NACK information) to the first UE based on the result of the combining decoding. The first UE determines whether retransmission of the first data is required based on the received feedback information.

Therefore, in the embodiment of the application, the first resource region is allocated to the first service in advance for transmitting the supplementary transmission data and the data of the normally transmitted first service, so that a plurality of supplementary transmission data affected by factors such as resource occupation or interference in the data transmission process can still be transmitted by using the resources in the same block region, resource fragmentation caused by supplementary transmission of a plurality of data in the prior art is avoided, convenience is provided for resource scheduling, meanwhile, the influence on data transmission is reduced, and the transmission performance is improved.

It should be understood that, in the embodiment of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiment of the present application. For example, S308, S310 may be performed before S306, S316 may be performed before S306, and so on.

It should also be understood that the method for transmitting control information and the method for receiving control information of the above examples are not only applicable to the above-described scenarios, but also can be applied to data retransmission, and the present application is not particularly limited to the scenario to which the method is applied.

The method for transmitting control information and the method for receiving control information according to the embodiment of the present application are described in detail above with reference to fig. 1 to 6. Hereinafter, an apparatus for transmitting control information and an apparatus for receiving control information according to an embodiment of the present application will be described in detail with reference to fig. 7 and 8.

Fig. 7 shows a schematic block diagram of an apparatus 700 for transmitting control information according to an embodiment of the present application. The apparatus 700 for sending control information may correspond to (e.g., may be configured to or be itself the first device described in the method 200), and each module or unit in the apparatus 700 is respectively configured to execute each action or processing procedure executed by the first device in the method 200, and a detailed description thereof is omitted here for avoiding redundancy.

In the embodiment of the present application, the apparatus 700 may include: the device may further comprise a memory, which may be integrated in the processor or separate from the processor. Wherein the memory may be configured to store instructions and the processor is configured to execute the instructions stored by the memory to control the transceiver to transmit information or signals, and the processor, the memory, and the transceiver may communicate with each other via the internal connection path to communicate control and/or data signals.

The processing unit in the apparatus 700 shown in fig. 7 may correspond to the processor, and the transceiver unit in the apparatus 700 shown in fig. 7 may correspond to the transceiver.

Fig. 8 shows a schematic block diagram of an apparatus 800 for receiving control information according to an embodiment of the present application. The apparatus 800 for receiving control information may correspond to (e.g., may be configured to or may be itself the second device described in the method 200), and each module or unit in the apparatus 800 is respectively configured to execute each action or processing procedure executed by the second device in the method 200, and a detailed description thereof is omitted here for avoiding redundancy.

In an embodiment of the present application, the apparatus 800 may include: the device may further comprise a memory, which may be integrated in the processor or separate from the processor. Wherein the memory may be configured to store instructions and the processor is configured to execute the instructions stored by the memory to control the transceiver to transmit information or signals, and the processor, the memory, and the transceiver may communicate with each other via the internal connection path to communicate control and/or data signals.

The processing unit in the apparatus 800 shown in fig. 8 may correspond to the processor, and the transceiver unit in the apparatus 800 shown in fig. 8 may correspond to the transceiver.

It should be noted that the above method embodiments of the present application may be applied to or implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the present application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes 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.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. 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.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for transmitting control information, comprising:

the first device sends second control information to the second device, where the second control information includes information of a second time-frequency resource, the second time-frequency resource at least bears second data, the second data includes a second bit obtained by channel coding the first information block, the second time-frequency resource is located in a pre-configured first resource region, the first resource region is used for bearing a first service but not used for bearing a second service, where the first data and the second data belong to data of the first service, the first service and the second service are different services, and a priority of the second service is higher than a priority of the first service.

2. The method of claim 1, wherein before the first device sends the second control information to the second device, the method further comprises:

the first device determines the number of the starting first resource unit of the second time-frequency resource in the first resource region according to the number of the starting Physical Resource Block (PRB) of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region, wherein the resource of the first resource region comprises a plurality of first resource units.

3. The method of claim 2, wherein the information of the second time-frequency resource comprises resource size information of the second time-frequency resource.

4. The method according to claim 1, wherein the information of the second time-frequency resource comprises information of a location of the second time-frequency resource in the first resource region and resource size information of the second time-frequency resource,

wherein the information of the position of the second time-frequency resource in the first resource region includes information of a number of a starting first resource unit of the second time-frequency resource in the first resource region.

5. The method according to claim 3 or 4, wherein the resource size information of the second time-frequency resource comprises information of the number of first resource units comprised by the second time-frequency resource, and the resource of the first resource region comprises a plurality of first resource units.

6. The method of claim 1, further comprising:

the first device sends indication information of the first resource region to the second device, wherein the indication information of the first resource region indicates the position of the first resource region in time-frequency resources and the size of resources contained in the first resource region.

7. The method of claim 2, further comprising:

8. The method of claim 1, further comprising:

the first device sends indication information of a third time-frequency resource to the second device, wherein the indication information of the third time-frequency resource indicates a position and a resource size of the third time-frequency resource in the first time-frequency resource, and the third time-frequency resource is part or all of the first time-frequency resource.

9. The method according to claim 8, wherein the indication information of the third time-frequency resource comprises a bitmap, and,

10. The method of claim 1, wherein the first time-frequency resource is located in a second resource region, and wherein the second resource region is used for carrying the first service and the second service.

11. A method of receiving control information, comprising:

the second device receives second control information sent by the first device, where the second control information includes information of a second time-frequency resource, the second time-frequency resource at least bears second data, the second data includes a second bit obtained by channel coding the first information block, the second time-frequency resource is located in a pre-configured first resource region, the first resource region is used for bearing a first service but not used for bearing a second service, where the first data and the second data belong to data of the first service, the first service and the second service are different services, and a priority of the second service is higher than a priority of the first service.

12. The method of claim 11, further comprising:

the second device determines the number of the starting first resource unit of the second time-frequency resource in the first resource region according to the number of the starting Physical Resource Block (PRB) of the first time-frequency resource and the number of the first resource units contained in the resource of the first resource region, wherein the resource of the first resource region comprises a plurality of first resource units.

13. The method according to claim 12, wherein the information of the second time-frequency resource comprises resource size information of the second time-frequency resource.

14. The method according to claim 11, wherein the information of the second time-frequency resource comprises information of a location of the second time-frequency resource in the first resource region and resource size information of the second time-frequency resource,

wherein the information of the position of the second time-frequency resource in the first resource region includes information of a number of starting first resource units of the second time-frequency resource in the first resource region, and the resource of the first resource region includes a plurality of first resource units.

15. The method according to claim 13 or 14, wherein the resource size information of the second time-frequency resource comprises information of the number of first resource units comprised by the second time-frequency resource.

16. The method of claim 11, further comprising:

the second device receives indication information of the first resource region sent by the first device, wherein the indication information of the first resource region indicates the position of the first resource region in time-frequency resources and the size of resources contained in the first resource region.

17. The method of claim 12, further comprising:

and the second device receives indication information of the first resource unit sent by the first device, wherein the indication information of the first resource unit is used for indicating the size of one first resource unit.

18. The method of claim 11, further comprising:

the second device receives indication information of a third time-frequency resource sent by the first device, wherein the indication information of the third time-frequency resource indicates a position and a resource size of the third time-frequency resource in the first time-frequency resource, and the third time-frequency resource is a part or all of the first time-frequency resource.

19. The method according to claim 18, wherein the indication information of the third time-frequency resource comprises a bitmap, and,

the second device receives the indication information of the third time-frequency resource sent by the first device, and the indication information includes:

the second device receives the bitmap sent by the first device, where the bitmap is used to indicate the third time-frequency resource allocated to the second service in the first time-frequency resource.

20. The method of claim 11, wherein the first time-frequency resource is located in a second resource region, and wherein the second resource region is used for carrying the first service and the second service.

21. An apparatus for transmitting control information, comprising:

a transceiving unit, configured to send first control information to a second device, where the first control information includes information of a first time-frequency resource, the first time-frequency resource at least carries first data, and the first data includes a first bit obtained after a first information block is subjected to channel coding;

the transceiver unit is further configured to send second control information to the second device, where the second control information includes information of a second time-frequency resource, the second time-frequency resource at least carries second data, the second data includes a second bit obtained after the first information block is subjected to channel coding, the second time-frequency resource is located in a first resource region configured in advance, the first resource region is used to carry a first service but not used to carry a second service, where the first data and the second data belong to data of the first service, the first service and the second service are different services, and a priority of the second service is higher than a priority of the first service.

22. The apparatus according to claim 21, wherein the apparatus further comprises a processing unit configured to determine a starting first resource unit number of the second time-frequency resource in the first resource region according to a starting Physical Resource Block (PRB) number of the first time-frequency resource and a number of first resource units included in the resource of the first resource region, where the resource of the first resource region includes a plurality of first resource units.

23. The apparatus of claim 22, wherein the information of the second time-frequency resource comprises resource size information of the second time-frequency resource.

24. The apparatus of claim 21, wherein the information of the second time-frequency resource comprises information of a location of the second time-frequency resource in the first resource region and resource size information of the second time-frequency resource,

25. The apparatus according to claim 23 or 24, wherein the resource size information of the second time-frequency resource comprises information of the number of the first resource units comprised by the second time-frequency resource.

26. The apparatus of claim 21, wherein the transceiver unit is further configured to send, to the second device, indication information of the first resource region, where the indication information of the first resource region indicates a position of the first resource region in time-frequency resources and a resource size included in the first resource region.

27. The apparatus of claim 22, wherein the transceiving unit is further configured to send, to the second device, indication information of the first resource unit, where the indication information of the first resource unit indicates a size of one first resource unit.

28. The apparatus of claim 21, wherein the transceiver unit is further configured to send, to the second device, indication information of a third time-frequency resource, where the indication information of the third time-frequency resource indicates a location and a resource size of the third time-frequency resource in the first time-frequency resource, and the third time-frequency resource is part or all of the first time-frequency resource.

29. The apparatus of claim 28, wherein the transceiver unit is specifically configured to send a bitmap to the second device, wherein the bitmap is used to indicate the third time-frequency resource allocated to the second service in the first time-frequency resource.

30. The apparatus of claim 21, wherein the first time-frequency resource is located in a second resource region, and wherein the second resource region is configured to carry the first traffic and the second traffic.

31. An apparatus for receiving control information, comprising:

a transceiver unit, configured to receive first control information sent by a first device, where the first control information includes information of a first time-frequency resource, the first time-frequency resource at least carries first data, and the first data includes a first bit obtained by channel coding a first information block;

the transceiver unit is further configured to receive second control information sent by the first device, where the second control information includes information of a second time-frequency resource, the second time-frequency resource at least carries second data, the second data includes a second bit obtained by channel coding the first information block, the second time-frequency resource is located in a first resource region configured in advance, the first resource region is used to carry data of a first service but not used to carry a second service, where the first data and the second data belong to data of the first service, the first service and the second service are different services, and a priority of the second service is higher than a priority of the first service.

32. The apparatus according to claim 31, further comprising a processing unit configured to determine a starting first resource unit number of the second time-frequency resource in the first resource region according to the starting Physical Resource Block (PRB) number of the first time-frequency resource and a number of first resource units included in the resource of the first resource region, where the resource of the first resource region includes a plurality of first resource units.

33. The apparatus of claim 32, wherein the information for the second time-frequency resource comprises resource size information for the second time-frequency resource.

34. The apparatus of claim 31, wherein the information of the second time-frequency resource comprises information of a location of the second time-frequency resource in the first resource region and resource size information of the second time-frequency resource,

35. The apparatus according to claim 33 or 34, wherein the resource size information of the second time-frequency resource comprises information of the number of resources comprised by the second time-frequency resource.

36. The apparatus of claim 31, wherein the transceiver unit is further configured to receive indication information of the first resource region sent by the first device, and wherein the indication information of the first resource region indicates a position of the first resource region in time-frequency resources and a resource size included in the first resource region.

37. The apparatus of claim 32, wherein the transceiver unit is further configured to receive indication information of the first resource unit sent by the first device, and the indication information of the first resource unit is used to indicate a size of one first resource unit.

38. The apparatus of claim 31, wherein the transceiver unit is further configured to receive indication information of a third time-frequency resource sent by the first device, wherein the indication information of the third time-frequency resource indicates a location and a resource size of the third time-frequency resource in the first time-frequency resource, and wherein the third time-frequency resource is part or all of the first time-frequency resource.

39. The apparatus of claim 38, wherein the transceiver unit is specifically configured to receive a bitmap sent by the first device, and wherein the bitmap is used to indicate the third time-frequency resource allocated to the second service in the first time-frequency resource.

40. The apparatus of claim 31, wherein the first time-frequency resource is located in a second resource region, and wherein the second resource region is configured to carry the first traffic and the second traffic.