WO2018201465A1

WO2018201465A1 - Method and apparatus for allocating physical uplink control channel resource, and communication system

Info

Publication number: WO2018201465A1
Application number: PCT/CN2017/083288
Authority: WO
Inventors: 张健; 王昕�; 周华
Original assignee: 富士通株式会社; 张健; 王昕�; 周华
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2018-11-08

Abstract

A method and apparatus for allocating a physical uplink control channel resource, and a communication system. The method comprises: a user equipment determining a resource of a physical uplink control channel at least according to the serial number of a control channel element of the physical downlink control channel, and the number of control channel elements between a first transmission time interval corresponding to the physical downlink control channel and a second transmission time interval corresponding to the physical uplink control channel. Thus, the problem of collision between PUCCH resources can be effectively reduced or prevented.

Description

Method, device and communication system for allocating physical uplink control channel resources

Technical field

The embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, an apparatus, and a communication system for allocating physical uplink control channel (PUCCH) resources.

Background technique

In a Long Term Evolution (LTE) system, for a hybrid automatic repeat request (HARQ) of a frequency division duplex (FDD) system, the user equipment receives in the nth subframe. After the data transmitted by the Physical Downlink Shared Channel (PDSCH), the feedback information (for example, ACK/NACK) corresponding to the data is fed back in the n+4th subframe.

A PUCCH (Physical Uplink Control Channel) may be used to carry the feedback information. For example, PUCCH format 1a/1b in LTE may be used to transmit ACK/NACK information. Accordingly, different PUCCH resources need to be allocated for different user equipments.

Taking PUCCH format 1a/1b as an example, its PUCCH resource passes the resource index.

Instructed, among them

Is a parameter related to the antenna port. Index value

It is possible to further obtain a resource block (RB, Resource Block) occupied by the PUCCH, a sequence used, and a cyclic shift thereof. Therefore, the parameters

The only resource configuration of the PUCCH is determined.

For LTE FDD systems, PUCCH resource allocation in n+4 subframes is

Decided, the parameters are omitted here

The n _CCE indicates the number of the first (or smallest) Control Channel Element (CCE) that constitutes the PDCCH, and the PDCCH is used to schedule the PDSCH in the nth subframe.

It is a parameter of the high-level configuration. Since the n _{CCEs of} different user equipments are different in the nth subframe, different user equipments

Can be well distinguished, PUCCH resources generally do not collide.

It should be noted that the above description of the technical background is only for the purpose of facilitating a clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these aspects are set forth in the background section of the present invention.

Summary of the invention

However, the inventors have discovered that future fifth-generation (5G) mobile communication systems will support more flexible HARQ timing, for example, the timing between receiving a PDSCH from a user equipment and initiating a corresponding HARQ ACK/NACK feedback may be dynamically configured, It is no longer fixed to a certain value. Under this condition, multiple PDCCH scheduled PDSCHs may occur, and the PUCCH needs to be used for ACK/NACK feedback within the same Transmission Time Interval (TTI), which may cause PUCCH resources to collide.

Embodiments of the present invention provide a method, an apparatus, and a communication system for allocating physical uplink control channel resources. The user equipment determines the resources of the PDCCH according to at least the CCE number of the PDCCH and the number of CCEs between the TTI corresponding to the PDCCH and the TTI corresponding to the PUCCH. Thereby, the collision problem of PUCCH resources can be effectively reduced or avoided.

According to a first aspect of the present invention, a method for allocating a physical uplink control channel resource includes: a user equipment according to at least a number of a control channel element of a physical downlink control channel, and a first corresponding to the physical downlink control channel And determining, by the number of control channel elements between the transmission time interval and the second transmission time interval corresponding to the physical uplink control channel, determining resources of the physical uplink control channel.

According to a second aspect of the present invention, a device for allocating a physical uplink control channel resource includes: a resource determining unit that is configured according to at least a number of a control channel element of a physical downlink control channel and the physical downlink control channel Determining the resources of the physical uplink control channel by determining the number of control channel elements between the first transmission time interval and the second transmission time interval corresponding to the physical uplink control channel.

According to a third aspect of the embodiments of the present invention, there is provided a communication system comprising: user equipment comprising means for allocating physical uplink control channel resources as described above.

An advantageous effect of the embodiment of the present invention is that the user equipment determines the resources of the PDCCH according to at least the CCE number of the PDCCH and the number of CCEs between the TTI corresponding to the PDCCH and the TTI corresponding to the PUCCH. Thereby, the collision problem of PUCCH resources can be effectively reduced or avoided.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the drawings, in which <RTIgt; It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the scope of the appended claims.

Features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with features in other embodiments, or in place of other embodiments. feature.

It should be emphasized that the term "comprising" or "comprises" or "comprising" or "comprising" or "comprising" or "comprising" or "comprises"

DRAWINGS

Elements and features described in one of the figures or one embodiment of the embodiments of the invention may be combined with elements and features illustrated in one or more other figures or embodiments. In the accompanying drawings, like reference numerals refer to the

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

2 is a schematic diagram of a collision of a PUCCH resource according to an embodiment of the present invention;

3 is a schematic diagram of a method for allocating physical uplink control channel resources according to an embodiment of the present invention;

4 is a diagram showing an example of determining physical uplink control channel resources according to an embodiment of the present invention;

FIG. 5 is another schematic diagram of a method for allocating physical uplink control channel resources according to an embodiment of the present invention; FIG.

6 is a diagram showing an example of slot scheduling and mini-slot scheduling according to an embodiment of the present invention;

7 is another exemplary diagram of slot scheduling and minislot scheduling according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a device for allocating physical uplink control channel resources according to an embodiment of the present invention; FIG.

FIG. 9 is a schematic diagram of a user equipment according to an embodiment of the present invention; FIG.

FIG. 10 is a schematic diagram of a network device according to an embodiment of the present invention.

detailed description

The foregoing and other features of the present invention will be apparent from the The specific embodiments of the present invention are disclosed in the specification and the drawings, which are illustrated in the embodiment of the invention The invention includes all modifications, variations and equivalents falling within the scope of the appended claims.

In the embodiment of the present invention, the terms "first", "second", etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "comprising," "having," or "an"

In the embodiments of the present invention, the singular forms "a", "the", "the", "the" and "the" It is to be understood that the singular In addition, the term "subject" should be understood to mean "based at least in part", and the term "based on" should be understood to mean "based at least in part on" unless the context clearly indicates otherwise.

In the embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network that conforms to any communication standard such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.

Moreover, the communication between devices in the communication system may be performed according to any phase of the communication protocol, and may include, for example but not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future. 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.

In the embodiment of the present invention, the term "network device" refers to, for example, a device in a communication system that accesses a terminal device to a communication network and provides a service for the terminal device. The network device may include, but is not limited to, a device: a base station (BS, a base station), an access point (AP, an Access Point), a transmission and reception point (TRP), a broadcast transmitter, and a mobility management entity (MME, Mobile). Management Entity), gateway, server, Radio Network Controller (RNC), Base Station Controller (BSC), and so on.

The base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), and the like, and may further include a Remote Radio Head (RRH). , Remote Radio Unit (RRU), relay or low power node (eg femto, pico, etc.). And the term "base station" may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area. The term "cell" can refer to a base station and/or its coverage area, depending on the context in which the term is used.

In the embodiment of the present invention, the term "user equipment" (UE) or "Terminal Equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives a network service. The user equipment may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, etc. Wait.

The user equipment may include, but is not limited to, a cellular phone (Cellular Phone), a personal digital assistant (PDA, Personal Digital Assistant), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, Cordless phones, smart phones, smart watches, digital cameras, and more.

For example, in a scenario such as the Internet of Things (IoT), the user equipment may also be a machine or device that performs monitoring or measurement, and may include, but is not limited to, a Machine Type Communication (MTC) terminal, In-vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, and the like.

The scenario of the embodiment of the present invention is described below by way of example, but the present invention is not limited thereto.

1 is a schematic diagram of a communication system according to an embodiment of the present invention, schematically illustrating a case where a user equipment and a network device are taken as an example. As shown in FIG. 1, the communication system 100 may include a network device 101 and a user equipment 102 (for simplicity) For example, FIG. 1 illustrates only one user equipment and one network device as an example, but the present invention is not limited thereto, and may include multiple user equipments and/or multiple network devices.

In the embodiment of the present invention, an existing service or a service that can be implemented in the future can be performed between the network device 101 and the user equipment 102. For example, these services may include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and high reliability low latency communication (URLLC, Ultra-Reliable and Low). -Latency Communication), and so on.

FIG. 2 is a schematic diagram of a collision of a PUCCH resource according to an embodiment of the present invention, showing a PDSCH in which multiple PDCCH scheduling may occur, and a PUCCH needs to be used for ACK/NACK feedback in the same TTI. The scheduling granularity is a slot; for simplicity, the PDSCH is not shown in the figure.

As shown in FIG. 2, there are multiple PDCCHs associated with the same PUCCH. Since the CCEs of the PDCCHs in different time slots are each independently numbered, the user equipments scheduled in different time slots may have the same CCE number. Therefore, if the mode of determining the PUCCH resources by using the first (or smallest) CCE number in LTE is reused, A PUCCH resource collision occurs in a user equipment that uses the same CCE number in different time slots.

The embodiments of the present invention will be described in detail below by taking gNB and UE as examples.

In addition, the physical downlink control channel, the physical downlink shared channel, and the physical uplink sharing in the embodiment of the present invention A channel or the like should be widely understood as a channel between a transmitting end and a receiving end, but is not limited to a PDCCH, a PDSCH, or a PUCCH defined in an LTE system, and may be, for example, an enhanced ePDCCH, an ePUSCH, or an ePUCCH; or may also be a D2D scene. The lower side link control channel or the side link data channel. Further, the control channel element is also not limited to the CCE defined in the LTE system, and may be, for example, an eCCE, or the like.

Example 1

The embodiment of the invention provides a method for allocating physical uplink control channel resources, which is described from the user equipment side. FIG. 3 is a schematic diagram of a method for allocating physical uplink control channel resources according to an embodiment of the present invention. As shown in FIG. 3, the method includes:

Step 301: The user equipment at least according to the number of the control channel element of the physical downlink control channel, and the control channel element between the first transmission time interval corresponding to the physical downlink control channel and the second transmission time interval corresponding to the physical uplink control channel The number of the resources of the physical uplink control channel is determined.

In this embodiment, the transmission time interval (TTI) may include any one of the following: a slot, a subframe, a frame, a time unit shorter than a slot, that is, a minislot (mini) -slot); however, the invention is not limited thereto. The present invention will be described below by taking a time slot as an example.

In this embodiment, it is assumed that a plurality of user equipments need to feed back ACK/NACK information through the PUCCH at the nth TTI, and the user equipments can receive signaling of scheduling PDSCH, that is, PDCCH, in different TTIs.

In this embodiment, similar to PUCCH format 1a/1b in LTE, PUCCH resources may be indexed by resources.

The only indication. To avoid PUCCH resource collisions generated by user equipments that are scheduled in different time slots, the PUCCH resource index of the user equipment that receives PDCCH scheduling signaling (the PDSCH transmission is scheduled by the PDCCH) in the slot numbered nm

Can be numbered by minimum CCE n _CCE and offset

decided together. For example, it can be added

Indicates the PUCCH resource.

The N _{CCE, nk} represents the total number of all CCEs included in the control channel resource set configured by the user equipment in the time slot numbered nk. The control channel resource set can be configured to the user equipment in a semi-static manner. Therefore, the total number of CCEs included is known to the user equipment, and different user equipments can also share the same control channel resource set.

FIG. 4 is a diagram showing an example of determining a physical uplink control channel resource according to an embodiment of the present invention, and a description of avoiding a PUCCH resource collision. As shown in FIG. 4, in three time slots numbered n-4, n-3, and n-1, three PDCCH signalings schedule PDSCH transmission of three user equipments. The ACK/NACK corresponding to these three PDSCHs are all transmitted in the slot numbered n. Since the CCEs are numbered independently in each time slot, different user equipments may have the same minimum CCE number. Therefore, the method of determining the PUCCH resources only by using the minimum CCE number will cause the PUCCH resources to collide.

For example, assume that the PDCCH all user equipments are located in the same set of control resources, and therefore the total number of CCE's are equal to each user equipment, since the semi-statically configured parameter, the total number of CCE in different time slots may be equal, that is N _{CCE, Nk} = N _CCE .

Introducing offset

Then, for the user equipment whose PDCCH is located in slot n-3, the offset is 3N _CCE ; similarly, for the user equipment where the PDCCH is located in slot n-1 and slot n-4, the offset is N. _CCE and 4N _CCE .

In this embodiment, since the calculated offsets are different, the PUCCH resources do not collide even if different user equipments have the same minimum CCE number. The offset set for the slot nm is equivalent to all reserved PUCCH resources for m slots from slot n–m+1 to slot n, and the PUCCH resources that may be used in each slot are in subsequent slots. The PUCCH resources are accumulated on the basis of the resources, so that collisions of PUCCH resources can be avoided.

FIG. 5 is another schematic diagram of a method for allocating physical uplink control channel resources according to an embodiment of the present invention, which is further described from both sides of the network device and the user equipment. As shown in FIG. 5, the method includes:

Step 501: The network device semi-statically configures the second parameter for the user equipment by using high layer signaling.

In this embodiment, the high-level signaling may be, for example, radio resource control (RRC) signaling, and the second parameter may be, for example,

Step 502: The network device schedules a user equipment by using a PDCCH.

In this embodiment, the user equipment may be scheduled by the PDCCH in the first TTI, so that the data sent by the network device through the PDSCH may be received according to the information carried by the PDCCH. The PDCCH may also include a first parameter dynamically configured for the user equipment, such as Δ _ARO .

Step 503: The user equipment receives data sent by the network device through the PDSCH.

Step 504: The user equipment determines the resource of the PUCCH according to the number of the CCE of the PDCCH and the number of CCEs between the first TTI corresponding to the PDCCH and the second TTI corresponding to the PUCCH.

Further, the user equipment may further determine resources of the PUCCH according to at least the first parameter and/or the second parameter. For example, the resources of the PUCCH can be determined by the following formula:

Where f(n _CCE,q ,p) is a function of the number n _CCE,q of the minimum control channel element and the antenna port p; a plurality of control resource sets may be configured, the q being used to identify the configured qth Control resource set; when the PUCCH resource is determined using only the minimum CCE number, the equivalent function is f(n _CCE,q ,p)=n _CCE,q .

Where n is the sequence number of the second TTI, m is the value of the deviation between the first TTI and the second TTI, and N _{CCE, q, nk is} represented in the n-kth TTI, the user equipment The number of CCEs included in the configured control channel resource set q. _ΔARO represents the first parameter configured by the PDCCH. Since the control resource set of the user equipment is independently configured, the minimum CCE number of different user equipments may be the same in the same time slot, and _ΔARO may adjust this. avoid collision.

The second parameter configured by the high layer signaling may be used to avoid collision between different control resource sets of the same user equipment.

It is to be noted that the foregoing is only a schematic description of the embodiments of the present invention, but the present invention is not limited thereto. For example, the above formula may be appropriately modified or adjusted, but all should be within the protection scope of the embodiments of the present invention. .

In this embodiment, the number of control channel elements between the first transmission time interval and the second transmission time interval may not include a control channel element in a transmission time interval in which the physical downlink control channel is determined to be absent. The number.

For example, in the offset

In the calculation, if it is known that there is no PDCCH in some time slots, for example, the time slot is an uplink time slot in a Time Division Duplex (TDD) system, and these time slots may not be calculated when the above equation is accumulated. Record it.

Step 505: The user equipment sends feedback information to the network device by using a PUCCH.

It should be noted that the above FIG. 5 only schematically illustrates the embodiment of the present invention, but the present invention is not limited thereto. For example, the order of execution between the various steps can be appropriately adjusted, and other steps can be added or some of the steps can be reduced. Those skilled in the art can appropriately adapt to the above contents, and are not limited to the above description of FIG.

As shown in the above embodiment, the user equipment determines the resources of the PDCCH according to at least the CCE number of the PDCCH and the number of CCEs between the TTI corresponding to the PDCCH and the TTI corresponding to the PUCCH. Thereby, the collision problem of PUCCH resources can be effectively reduced or avoided.

Example 2

The embodiment of the present invention further describes the parameters that the network device configures for the user equipment on the basis of the embodiment 1. The content of the embodiment of the present invention is the same as that of the first embodiment.

To meet different business needs, multiple TTIs may coexist in the system. For example, the user equipment of the eMBB service and the user equipment of the URLLC service coexist, and the delay-insensitive eMBB user equipment may be scheduled in time slot units, and the delay-sensitive URLLC user equipment may have a smaller small time slot, ie min- The slot is scheduled for the unit.

At the same time, the slots are similar, and PDCCH and/or PUCCH transmission can also be performed inside each small slot. The time slot and the small time slot may adopt a similar frame structure, for example, the PDCCH occupies the first several orthogonal frequency division multiplexing (OFDM) symbols of the time slot/small time slot, and the PUCCH occupies the last few times of the time slot/small time slot. OFDM symbols.

Compared with scheduling in units of time slots (which may be simply referred to as time slot scheduling), for scheduling in small time slots (which may be simply referred to as small time slot scheduling), the user equipment has more opportunities to feedback PUCCH in the time dimension. For example, the slot scheduling user device has an opportunity to feed back the PUCCH once in each time slot of the user equipment, and the mini-slot scheduling has an opportunity to feed back the PUCCH in each small time slot of the user equipment. For example, if each time slot contains exactly two minislots, the minislot scheduling user equipment may have twice the chance of feeding back the PUCCH.

FIG. 6 is a diagram showing an example of time slot scheduling and small time slot scheduling according to an embodiment of the present invention. As shown in FIG. 6 , for example, the opportunity of some PUCCH feedback of the small time slot scheduling user equipment coincides with the PUCCH feedback of the time slot scheduling user equipment. FIG. 7 is another example diagram of slot scheduling and minislot scheduling according to an embodiment of the present invention. As shown in FIG. 7, for example, PUCCH feedback of a slot scheduling user equipment does not occur in a time range of some PUCCH feedback, that is, an hour. The PUCCH feedback of the slot scheduling user equipment does not coincide with the PUCCH feedback of the slot scheduling user equipment.

In this embodiment, for the user equipment scheduled by the small time slot, the calculation formula of the PUCCH resource index, for example, described in Embodiment 1 may be reused, and semi-statically configured through high layer signaling.

Parameters to avoid PUCCH collisions with time slot scheduling user equipment. For convenience of comparison, the PUCCH resource decision mode of the time slot scheduling user equipment and the small time slot scheduling user equipment is given as follows:

For example, scheduling user equipment for time slots:

For example, scheduling user equipment for minislots:

The relevant parameters in the above formula have the same meanings as in the first embodiment. The subscript slot and the mini-slot are used to distinguish the time slot and the minislot scheduling user equipment. Here, for the sake of simplicity, the control resource set identifier q is omitted.

For the case where the PUCCH feedback timing of the small-slot scheduling user equipment coincides with the PUCCH feedback timing of the time slot scheduling user equipment, in order to implement a unified frame structure design, the PDCCH and/or PUCCH of the time slot may be reused by the small time slot. For example, as shown in FIG. 6, the user equipment with the slot as the scheduling unit and the user equipment with the slot as the scheduling unit may use the PUCCH to feed back the ACK/NACK in the same time range. Therefore, the allocation of PUCCH resources also needs to consider avoiding PUCCH resource collision between the slot scheduling user equipment and the mini-slot scheduling user equipment.

In this embodiment, the second parameter may be configured as two or more according to different transmission time intervals; the different transmission time interval may include a first transmission time interval and is smaller than the first transmission time interval. The second transmission time interval.

In this embodiment, the second parameter may be configured for the first transmission time interval and the second transmission time interval, respectively. For example, the second parameter corresponding to the second transmission time interval is greater than the second parameter corresponding to the first transmission time interval, that is, the second parameter configured is larger for a smaller transmission time interval.

For example, for the mini-slot scheduling user equipment in FIG. 6, the parameters may be passed.

The configuration is to avoid collisions with the PUCCH resources of the time slot scheduling user equipment. For example in

Contains an offset

Where m _max represents the maximum number of time slots between receiving the PDCCH from the user equipment and the user equipment feedback PUCCH, which is equivalent to reserve sufficient PUCCH resources for the time slot scheduling user equipment. Thereby, a larger configuration is configured by a network device (for example, a base station)

The parameter can avoid the PUCCH resource that the user equipment may occupy by the time slot, thereby avoiding collision.

In this embodiment, for the case that the PUCCH feedback of the slot scheduling user equipment does not occur in the time range of the small slot PUCCH feedback, for example, the situation shown in FIG. 7 does not exist between the user equipments of the two scheduling granularities. PUCCH resources collide, so the above

It does not need to be configured as a value that can be used to circumvent all time slots to schedule user equipment PUCCH resources. Excessive offset means that excessive resources are reserved, which is not conducive to efficient use of resources. Therefore, you can configure another one

The value is used to determine the PUCCH resource usage when there is only small slot PUCCH feedback.

Alternatively, the second transmission time interval may also be configured with at least two second parameters of different sizes. For example, configure one second parameter for the slot and two second parameters for the mini-slot. Among the two second parameters of the mini-slot, one of them can be larger, and the PUCCH resource of the slot can be avoided, and the other one does not have to be large, and the PUCCH of the slot does not collide without avoiding.

In this embodiment, two or more second parameters may be configured for each user equipment.

For example, for a user equipment scheduled for small time slots, the base station can independently configure two sets of semi-static methods for the user equipment.

Parameter, for example, as

with

When the small time slot in which the user equipment performs PUCCH feedback can also be used to transmit the time slot scheduling user equipment PUCCH (as shown in FIG. 6), use

Substituting the formula of Embodiment 1 for calculation, thereby determining the PUCCH resource. When the small time slot in which the user equipment performs PUCCH feedback cannot be used to transmit the time slot scheduling user equipment PUCCH (as shown in FIG. 7), use

Substituting the formula of Embodiment 1 for calculation, thereby determining the PUCCH resource.

For example, when the user equipment has both the slot service and the mini-slot service, the second parameter can be configured for the mini-slot, that is, the user equipment can configure three second parameters.

In this embodiment, two or more second parameters may also be configured for each control resource set.

For example, the small-slot scheduling user equipment can also be configured with multiple control resource sets. The above formula is easily extended by adding the subscript q, and details are not described herein again. At this point, you can configure two sets for each control resource collection.

parameter.

It should be noted that, for the sake of simplicity, a slot and a mini-slot are taken as an example. However, the present invention is not limited thereto, and may be other time units, for example, three. Three or more different time scheduling units are configured with three (or three sets) or more parameters.

In addition, by configuring two or more parameters according to different transmission time intervals, the collision problem of PUCCH resources between user equipments of multiple services can be further reduced.

Example 3

The embodiment of the present invention provides a device for allocating a physical uplink control channel resource. The device for allocating the physical uplink control channel resource may be, for example, a user equipment, or may be a component or component configured in the user equipment. The same contents of the third embodiment as those of the first embodiment or the second embodiment will not be described again.

FIG. 8 is a schematic diagram of a physical uplink control channel resource allocation apparatus according to an embodiment of the present invention. As shown in FIG. 8, the physical uplink control channel resource allocation apparatus 800 includes:

The resource determining unit 801 is configured to: at least according to the number of the control channel element of the physical downlink control channel, and the control channel between the first transmission time interval corresponding to the physical downlink control channel and the second transmission time interval corresponding to the physical uplink control channel The number of elements determines the resources of the physical uplink control channel.

As shown in FIG. 8, the apparatus for allocating physical uplink control channel resources may further include:

An information receiving unit 802, configured by the physical downlink control channel, in the first transmission time interval;

a data receiving unit 803, which receives data transmitted by the network device through a physical shared channel;

The information sending unit 804 sends the feedback information to the network device by using the physical uplink control channel in the second transmission time interval.

The parameter receiving unit 805 receives a first parameter dynamically configured by the network device through the physical downlink control channel, and/or a second parameter that is semi-statically configured through high layer signaling.

In this embodiment, the resource determining unit 801 may further determine resources of the physical uplink control channel according to at least the first parameter and/or the second parameter.

In this embodiment, the transmission time interval may include any one of the following: a time slot, a subframe, a frame, and a time interval. A shorter time unit is a small time slot; however, the invention is not limited thereto.

For example, the resources of the physical uplink control channel can be determined by the following formula:

Where f(n _CCE,q ,p) is a function of the number n _CCE,q of the minimum control channel element and the antenna port p, the q is used to identify the configured qth control resource set, and n represents the a sequence number of the second transmission time interval, where m represents a deviation value between the first transmission time interval and the second transmission time interval, and N _{CCE, q, nk} represents the user in the nth to kth transmission time interval The number of control channel elements included in the control channel resource set q configured by the device, and _ΔARO represents the first parameter configured by the physical downlink control channel,

Indicates the second parameter configured through higher layer signaling.

In this embodiment, the second parameter may be configured to be two or more according to different transmission time intervals; for a smaller transmission time interval, the configured second parameter is larger. Two or more of the second parameters may be configured for each user equipment, and/or two or more of the second parameters may be configured for each control resource set.

It is to be noted that the above description has been made only for the respective components or modules related to the present invention, but the present invention is not limited thereto. The allocation device 800 for physical uplink control channel resources may also include other components or modules. For specific contents of these components or modules, reference may be made to related technologies.

Example 4

The embodiment of the present invention further provides a communication system. Referring to FIG. 1, the same content as Embodiments 1 to 3 will not be described again. In this embodiment, the communication system 100 can include:

User equipment 102, which is configured with a physical uplink control channel resource allocation apparatus 800 as described in Embodiment 3.

The network device 101 dynamically configures the first parameter for the user equipment by using a physical downlink control channel, and/or semi-statically configures the second parameter for the user equipment by using high layer signaling.

The embodiment of the present invention further provides a user equipment, but the present invention is not limited thereto, and may be other devices.

FIG. 9 is a schematic diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 9, the user device 900 can include a processor 910 and a memory 920; the memory 920 stores data and programs and is coupled to the processor 910. It should be noted that the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.

The processor 910 can be configured to implement the function of the physical uplink control channel resource allocation device 800. For example, the processor 910 may be configured to perform control according to at least a number of a control channel element of the physical downlink control channel and a first transmission time interval corresponding to the physical downlink control channel and a second corresponding to the physical uplink control channel. The number of control channel elements between transmission time intervals determines the resources of the physical uplink control channel.

As shown in FIG. 9, the user equipment 900 may further include: a communication module 930, an input unit 940, a display 950, and a power supply 960. The functions of the above components are similar to those of the prior art, and are not described herein again. It should be noted that the user equipment 900 does not have to include all the components shown in FIG. 9, and the above components are not required; in addition, the user equipment 900 may further include components not shown in FIG. There are technologies.

The embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto, and may be other network devices.

FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in FIG. 10, network device 1000 can include a processor 1010 (eg, a central processing unit CPU) and a memory 1020; memory 1020 is coupled to processor 1010. The memory 1020 can store various data; in addition, a program 1030 for information processing is stored, and the program 1030 is executed under the control of the processor 1010.

For example, the processor 1010 can be configured to execute the program 1030 to perform the following control: dynamically configuring the first parameter for the user equipment through a physical downlink control channel, and/or semi-static for the user equipment through higher layer signaling Configure the second parameter.

In addition, as shown in FIG. 10, the network device 1000 may further include: a transceiver 1040, an antenna 1050, and the like; wherein the functions of the foregoing components are similar to the prior art, and details are not described herein again. It is worth noting that the network equipment 1000 does not necessarily include all of the components shown in FIG. 10; in addition, the network device 1000 may also include components not shown in FIG. 10, and reference may be made to the prior art.

The embodiment of the present invention further provides a computer readable program, wherein the program causes the user equipment to perform the method for allocating physical uplink control channel resources according to

Embodiment

1 or 2 when the program is executed in a user equipment .

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the user equipment to perform the method for allocating physical uplink control channel resources according to

Embodiment

1 or 2.

The above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

The method/apparatus described in connection with the embodiments of the invention may be embodied directly in hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in FIG. 8 and/or one or more combinations of functional block diagrams (eg, resource determination units, etc.) may correspond to various software modules of a computer program flow, or Corresponds to each hardware module. These software modules may correspond to the respective steps shown in FIG. 3, respectively. These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).

The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if a device (such as a mobile terminal) uses a larger capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.

One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein. ), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete Gate or transistor logic, discrete hardware components, or any suitable combination thereof. One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that A person skilled in the art can make various modifications and changes to the present invention within the scope of the present invention.

Claims

A method for allocating physical uplink control channel resources includes:

And the number of control channel elements between the first transmission time interval corresponding to the physical downlink control channel and the second transmission time interval corresponding to the physical uplink control channel and the number of control channel elements corresponding to the physical downlink control channel Determining resources of the physical uplink control channel.
The method of claim 1 wherein the method further comprises:

The user equipment is scheduled by the physical downlink control channel in the first transmission time interval;

Receiving, by the user equipment, data sent by the network device through a physical downlink shared channel;

The user equipment sends feedback information to the network device by using the physical uplink control channel during the second transmission time interval.
The method of claim 1 wherein the method further comprises:

Receiving, by the user equipment, the first parameter and/or the second parameter; the first parameter is dynamically configured by the network device by using the physical downlink control channel, and the second parameter is semi-static by the network device by using high layer signaling Ground configuration

The user equipment further determines resources of the physical uplink control channel according to at least the first parameter and/or the second parameter.
The method of claim 1, wherein the transmission time interval comprises any one of: a time slot, a subframe, a frame, a time unit shorter than the time slot, ie, a small time slot.
The method of claim 1, wherein the resources of the physical uplink control channel are determined by the following formula:

Where f(n CCE,q ,p) is a function of the number n CCE,q of the minimum control channel element and the antenna port p, the q is used to identify the configured qth control resource set, and n represents the a sequence number of the second transmission time interval, where m represents a deviation value between the first transmission time interval and the second transmission time interval, and N CCE, q, nk represents the user in the nth to kth transmission time interval The number of control channel elements included in the control channel resource set q configured by the device, and ΔARO represents the first parameter configured by the physical downlink control channel,
Indicates the second parameter configured through higher layer signaling.
The method according to claim 1, wherein the number of control channel elements between the first transmission time interval and the second transmission time interval does not include a transmission time interval in which it is determined that there is no physical downlink control channel. The number of control channel elements.
The method of claim 3, wherein the second parameter is configured to be two or more according to different transmission time intervals.
The method of claim 7, wherein the different transmission time interval comprises a first transmission time interval and a second transmission time interval that is smaller than the first transmission time interval; and is the first transmission time The second parameter is configured by an interval and the second transmission time interval.
The method according to claim 8, wherein the second parameter corresponding to the second transmission time interval is greater than the first transmission time interval; or the second transmission time interval is configured with at least two different sizes The second parameter.
The method of claim 7, wherein two or more of the second parameters are configured for each user equipment, and/or two or more of the second parameters are configured for each control resource set.
A device for allocating physical uplink control channel resources, including:

a resource determining unit, which is based at least on a control channel element between a number of a control channel element of the physical downlink control channel and a first transmission time interval corresponding to the physical downlink control channel and a second transmission time interval corresponding to the physical uplink control channel The number of the resources of the physical uplink control channel is determined.
The apparatus of claim 11 wherein said apparatus further comprises:

An information receiving unit that is scheduled by the physical downlink control channel in the first transmission time interval;

a data receiving unit that receives data transmitted by the network device through the physical downlink shared channel;

And an information sending unit that sends feedback information to the network device by using the physical uplink control channel in the second transmission time interval.
The apparatus of claim 11 wherein said apparatus further comprises:

a parameter receiving unit, which receives the first parameter and/or the second parameter; the first parameter is dynamically configured by the network device by using the physical downlink control channel, and the second parameter is used by the network device to pass the high layer signaling half Statically configured;

The resource determining unit further determines the physical basis according to at least the first parameter and/or the second parameter The resources of the row control channel.
The apparatus of claim 11, wherein the transmission time interval comprises any one of: a time slot, a subframe, a frame, a time unit shorter than the time slot, that is, a small time slot.
The apparatus of claim 11, wherein the resources of the physical uplink control channel are determined by the following formula:

Where f(n CCE,q ,p) is a function of the number n CCE,q of the minimum control channel element and the antenna port p, the q is used to identify the configured qth control resource set, and n represents the a sequence number of the second transmission time interval, where m represents a deviation value between the first transmission time interval and the second transmission time interval, and N CCE, q, nk represents the user in the nth to kth transmission time interval The number of control channel elements included in the control channel resource set q configured by the device, and ΔARO represents the first parameter configured by the physical downlink control channel,
Indicates the second parameter configured through higher layer signaling.
The apparatus according to claim 11, wherein the number of control channel elements between the first transmission time interval and the second transmission time interval does not include a transmission time interval in which it is determined that there is no physical downlink control channel The number of control channel elements.
The apparatus of claim 13, wherein the second parameter is configured to be two or more according to different transmission time intervals.
The apparatus of claim 17, wherein two or more of the second parameters are configured for each user equipment, and/or two or more of the second parameters are configured for each control resource set.
A communication system, the communication system comprising:

A user equipment comprising the apparatus for allocating physical uplink control channel resources according to claim 11.
The communication system of claim 19, the communication system further comprising:

And a network device that dynamically configures the first parameter for the user equipment by using a physical downlink control channel, and/or configures the second parameter semi-statically for the user equipment by using high layer signaling.