WO2013139255A1

WO2013139255A1 - Method, base station and user equipment for notification and determination of control channel resource information

Info

Publication number: WO2013139255A1
Application number: PCT/CN2013/072872
Authority: WO
Inventors: 高驰; 李超君; 刘江华; 吴强
Original assignee: 华为技术有限公司
Priority date: 2012-03-19
Filing date: 2013-03-19
Publication date: 2013-09-26
Also published as: CN103327610B; CN103327610A

Abstract

The present invention relates to the field of communication, provides a method, base station and user equipment for the notification and determination of control channel resource information, and avoids resource waste in enhanced-physical downlink control channel (E-PDCCH) transmission. The method for the notification of control channel resource information comprises: notifying user equipment (UE), via dynamic signaling, the resource information which can bear the enhanced-physical downlink control channel (E-PDCCH), so that the UE determines, from the resource information, the resource used for bearing E-PDCCH. The method for the determination of control channel resource information comprises: receiving, via dynamic signaling, from a base station (BS) the resource information which can bear the enhanced-physical downlink control channel (E-PDCCH); determining, from the resource information, the resource used for bearing the E-PDCCH. The embodiments of the present invention are mainly used for the communication of the BS and the UE.

Description

Notification, determination method, base station and user equipment of resource information of control channel The application is submitted to the Chinese Patent Office on March 19, 2012, and the application number is 201210072992.X, and the invention name is "a resource information of a control channel". The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference.

Technical field

The present invention relates to the field of communications, and in particular, to a notification, a determination method, a base station, and a user equipment of resource information of a control channel.

Background technique

In a Long Term Evolution (LTE) system, an evolved Node B (eNB) transmits a Physical Downlink Shared Channel (PDSCH) and a corresponding physical downlink for each scheduled user equipment. A control channel (Physical Downlink Control Channel, PDCCH), where the PDSCH carries data transmitted by the eNB to the user equipment, and the PDCCH carries control information corresponding to the PDSCH. With the further evolution of LTE, in order to support multi-input and multi-input and multi-user and multi-cell coordination, a part of resources are allocated in the original area for transmitting the PDSCH, and the enhanced PDCCH (E-PDCCH) is transmitted. The capacity of the PDCCH can be increased, and the number of user equipments that can be scheduled simultaneously is increased. The user equipment needs to detect the E-PDCCH in the area for transmitting the PDSCH. To reduce the blind detection range of the user equipment, the resource or resource range carrying the E-PDCCH needs to be notified to the user equipment. In the prior art, the resource or resource range that carries the E-PDCCH is notified to the user equipment in a static or semi-static manner.

In the process of implementing the foregoing technical solution, the inventor has found that at least the following problems exist in the prior art: Currently, the signaling of the resource range configured by the base station to the user equipment is static or semi-static, and the period of static or semi-static signaling is compared. Long, the range of resources notified cannot be It reflects the resource requirements of the E-PDCCH. The base station needs to ensure the ability to simultaneously transmit E-PDCCH to all user equipments or most user equipments. However, in practical applications, the base station usually only sends E-PDCCH control information to a part of user equipments, and only a part of a large number of resources are actually used to carry the E-PDCCH, that is, the resources allocated to the user equipment are not fully occupied, and the configured resources are The range is relatively large, but the instantaneous E-PDCCH information is less, resulting in waste of resources.

Summary of the invention

The embodiments of the present invention provide a notification, a determining method, a base station, and a user equipment of resource information of a control channel, which avoids waste of resources in transmission of the E-PDCCH.

In order to achieve the above object, embodiments of the present invention use the following technical solutions:

A method for notifying resource information of a control channel includes:

The dynamic information is used to notify the user equipment that the resource information of the enhanced physical downlink control channel E-PDCCH can be carried, so that the user equipment determines the resource occupied by the E-PDCCH from the resource information.

A method for determining resource information of a control channel includes:

Receiving, by using dynamic signaling, resource information that can be carried by the base station and carrying the E-PDCCH;

A resource carrying the E-PDCCH is determined from the resource information.

A base station comprising:

The resource notification unit is configured to notify the user equipment that the resource information of the E-PDCCH can be carried by the dynamic signaling, so that the user equipment determines, from the resource information, the resource occupied by the E-PDCCH.

A user equipment, including:

a resource information receiving unit, configured to receive, by using dynamic signaling, resource information that can be carried by the base station and can carry the E-PDCCH;

And a resource determining unit, configured to determine, from the resource information, a resource that carries the E-PDCCH. A method for notifying, determining, and performing resource information of a control channel provided by an embodiment of the present invention And the user equipment, the base station notifies the user equipment of the range of resources for the E-PDCCH before the E-PDCCH is transmitted, so that the user equipment determines the resource that carries the E-PDCCH from the range of resources used for the E-PDCCH, In the prior art, since only a part of resources are actually used to carry the E-PDCCH, a large amount of resources designated for the E-PDCCH are idle, thereby reducing resource waste.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic diagram of distribution of a PDCCH region and a PDSCH region in a subframe in the prior art; FIG. 2 is a schematic diagram of distribution of a PDCCH region, an E-PDCCH region, and a PDSCH region in a subframe in the prior art;

FIG. 3 is a schematic diagram of forming a waste of resources when a base station sends a subframe to multiple user equipments in the prior art;

4 is a flow chart of a method for determining resource information of a control channel according to Embodiment 1 of the present invention;

FIG. 5 is a flowchart of a method for notifying resource information of a control channel according to Embodiment 2 of the present invention;

6 is a schematic diagram of describing an E-PDCCH available resource set and a resource group according to Embodiment 2 of the present invention;

7 is a schematic diagram of a composition manner of a resource group according to Embodiment 2 of the present invention;

8 is a schematic diagram of resource mapping performed by an interleaver according to Embodiment 2 of the present invention;

FIG. 9 is a flowchart of a method for determining resource information of a control channel according to Embodiment 3 of the present invention; Cheng Tu

10 is a flowchart of exchange between a base station and a user equipment according to Embodiment 3 of the present invention;

11 is a block diagram of a base station according to Embodiment 4 of the present invention;

12 is a block diagram of a resource notification unit according to Embodiment 4 of the present invention;

13 is a block diagram of a resource notification unit according to Embodiment 4 of the present invention;

14 is a block diagram of a user equipment according to Embodiment 4 of the present invention;

15 is a block diagram of a resource information receiving unit according to Embodiment 4 of the present invention;

FIG. 16 is a block diagram of a resource determining unit according to Embodiment 4 of the present invention. detailed description

The multiplexing mode of PDCCH and PDSCH is shown in Figure 1. Subframe sent by the base station to the user equipment

01 is divided into a PDCCH region 101 and a PDSCH region 102, where the PDCCH region 101 includes PDCCHs of all scheduled user equipments. With the further evolution of the LTE system, in the LTE Rel-10, in order to support multi-input and multi-input and multi-user and multi-cell coordination, a part of resources are allocated in the original PDSCH area 102 for transmitting the E-PDCCH. As shown in FIG. 2, in addition to the PDCCH region 101 and the PDSCH region 102 in the subframe 01, a part of the resource originally used for the PDSCH is set as the E-PDCCH region 103.

In order to implement the transmission of the E-PDCCH, in the prior art, the base station uses static or semi-static signaling to notify the range of resources that the user equipment can carry the E-PDCCH, which is recorded as the range A, and then the base station will use the E- of different user equipments. The PDCCH is sent to the user equipment on the resources in the range A. The static/semi-static signaling period is relatively long, and the indicated resource range A cannot be consistent with the resource carrying the E-PDCCH in real time, and the indicated resource range is larger than the real-time E-PDCCH resource, resulting in resources. waste.

For example, the base station first sends a semi-static command to the user equipments 1, 2 and 3, and informs each user equipment of the range A of resources that can carry the E-PDCCH. In the actual transmission, there are simultaneous transmissions respectively Corresponding to the possibility of E-PDCCH of user equipments 1, 2 and 3, therefore the size of range A should be sufficient to meet the requirements of simultaneously transmitting E-PDCCH to devices 1, 2, 3. There are five sets of Resource Blocks (RBs) in the range A, which are respectively recorded as Rl, R2, R3, R4 and R5. After the range A is notified to each user equipment by a semi-static command, the base station sequentially transmits the subframe A, the subframe B, the subframe C, and the subframe D, as shown in FIG. The R- and R2 of the subframe A carry the E-PDCCH of the user equipment 1, the R3 part carries the E-PDCCH of the user equipment 2, and the parts R4 and R5 carry the E-PDCCH of the user equipment 3. The E-PDCCH of the user equipment 1 is carried in R1 and R2 of the subframe B, the E-PDCCH of the user equipment 2 is carried in the R3 part of the subframe C, and the E-PDCCH of the user equipment 3 is carried in the R4 and R5 parts of the subframe D. PDCCH. In this case, the R3, R4, and R5 portions of subframe B, the R1, R2, R4, and R5 portions of subframe C, and the R1, R2, and R3 portions of subframe D do not carry a valid E-PDCCH, thereby forming A waste of resources.

BRIEF DESCRIPTION OF THE DRAWINGS The technical solutions in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without the creative work are all within the scope of the present invention.

Embodiment 1:

The embodiment of the invention provides a method for notifying the resource information of the control channel, which relates to the base station side, and includes the following steps:

The dynamic information is used to notify the user equipment that the resource information of the E-PDCCH can be carried, so that the user equipment determines the resource occupied by the E-PDCCH from the resource information.

The dynamic signaling may dynamically track the resources occupied by the E-PDCCH, that is, each E-PDCCH may have corresponding dynamic signaling to indicate the resource information occupied by each E-PDCCH, or may be every several The E-PDCCH sends a dynamic signaling to the user equipment to indicate resource information occupied by the E-PDCCH. The transmission period of static or semi-static signaling is longer than the transmission period of dynamic signaling. The dynamic resource indication method can better track the resources actually occupied by the E-PDCCH. Source, effectively reducing the idleness of resources, is conducive to saving resources.

The dynamic signaling may be transmitted at a physical layer.

The embodiment of the present invention further provides a method for determining resource information of a control channel, which is related to the user equipment side, as shown in FIG. 4, and includes the following steps:

201. Receive, by using dynamic signaling, resource information that can be carried by the base station and can carry the E-PDCCH.

202. Determine, from the resource information, a resource that carries an E-PDCCH.

When receiving the subframe sent by the base station, the user equipment receives the resource information, and determines the resource occupied by the E-PDCCH.

The method for notifying and determining the resource information of the control channel provided by the embodiment of the present invention, the base station notifying the user equipment of the resource range for the E-PDCCH transmission, so that the user equipment is in the resource range for the E-PDCCH. The resources occupied by the E-PDCCH are determined to be idle, which avoids the idleness of the resources used for the E-PDCCH transmission due to the untimely indication of the resource indication information in the prior art, thereby reducing resource waste.

Embodiment 2:

The embodiment of the invention provides a method for notifying the resource information of the control channel, which is related to the base station side, as shown in FIG. 5, and includes the following steps:

301. Send first notification signaling to the user equipment, where the first notification signaling includes information about a first available resource set that can carry the E-PDCCH.

302. The dynamic signaling is used to notify the user equipment that the information about the second available resource set of the E-PDCCH can be carried. The sending period of the dynamic signaling is relatively short, and the resources occupied by the E-PDCCH can be tracked dynamically, that is, each E-PDCCH can be sent with corresponding dynamic signaling to indicate the resources occupied by the E-PDCCH. The information may also be sent to the user equipment every several E-PDCCHs to indicate the resource information occupied by the E-PDCCH. Dynamic resource indication method can Better tracking the resources actually occupied by the E-PDCCH, effectively reducing the idleness of resources, and saving resources. The dynamic signaling can be transmitted at the physical layer.

When receiving the subframe sent by the base station, the user equipment finds the resource information from the subframe, and determines the occupied resource that carries the E-PDCCH.

By sending the first notification signaling, the user equipment can obtain a large range of E-PDCCH transmission, that is, the first available resource set, in the total downlink resource. The dynamic signaling may be used by the user equipment to learn a smaller set of resources selected in the first set of available resources, i.e., the second set of available resources, in a particular E-PDCCH transmission. The second set of available resources is a subset of the first set of available resources.

The following is an example of using the first available resource set and the second available resource set in the foregoing E-PDCCH, and performing corresponding changes on the basis of FIG. 2 to increase the E-PDCCH resource set is obtained as shown in FIG. 6. The information of the first set of available resources 104 is carried by the first notification signaling and sent to the user equipment, whereby the user equipment can determine to look up the E-PDCCH within the resource range of 104 without looking up outside the range of 104. In the range of 104, there are several resource groups, such as resource groups 1041, 1042. After determining, by the base station, which resource groups are to carry the E-PDCCH, the information of the resource group that carries the E-PDCCH, that is, the information of the second available resource set, is dynamically notified to the user equipment, so that the user equipment is in the subframe received later. The resource carrying the E-PDCCH is determined in the corresponding second available resource set, thereby acquiring control information in the E-PDCCH.

Further, the foregoing means for dynamically signaling the user equipment to carry the E-PDCCH, and the indication manner of the specific signaling may include the following manners.

One way is to notify the user equipment of the resource location information used to carry the E-PDCCH. In this way, the base station directly advertises the location of the resource carrying the E-PDCCH to the user equipment, thereby eliminating blind detection of the user equipment.

The other is to inform the user equipment of the resource range for E-PDCCH blind detection. such as, Referring to FIG. 6 , the base station notifies the user equipment of the resource group 1041 as the range of the blind detection, and the user equipment searches for the resource that can carry the E-PDCCH in the range of the resource group 1041 of the subframe. The cost of the dynamic signaling of the resource range is smaller than that of the previous method, and the overhead of dynamic signaling can be saved.

The unit of the resource that can carry the E-PDCCH is a resource group, and the action of notifying the user equipment that the resource information of the E-PDCCH can be carried by the dynamic signaling is implemented, which may be: The device sends data bit signaling for identifying a resource group that can carry the E-PDCCH, so that the user equipment determines the resource group that can carry the E-PDCCH according to the data bit. The dynamic signaling indicates that the resource that can carry the E-PDCCH identifies the resource group by sending data bits. There are various alternative manners, which are respectively described below.

example 1 :

Before the base station and the user equipment, the allocation mode of the resource group is defined in advance, and it is assumed that among the available resource blocks, L resource groups are divided into resource group 1 and resource group 2

Resource group L. The resource blocks included in different resource groups may have overlapping parts, and whether the resource units in each resource group are consecutive in the time domain is not limited. Assuming L=3, three resource groups are divided. When performing the dynamic signaling, the user equipment may send “lo _g bits, that is, 2 bits, and the two bits have a total of 2 combinations of 2 times, respectively: 00, 01, 10 and 11. It is possible to associate the resource group 1 and 01 corresponding to 00 with the resource group 2, 10 corresponding to the resource group 3. When the value of the data bit for identifying the resource group capable of carrying the E-PDCCH is sent to the user equipment, the value is 00. Indicates that the resource that can carry the E-PDCCH is the resource group 1. When the value of the signaling bit used to identify the resource group that can carry the E-PDCCH is 01, the resource that can carry the E-PDCCH is The resource group 2, when the value of the data bit for identifying the resource group that can carry the E-PDCCH to the user equipment is 10, the resource indicating that the E-PDCCH can be carried is the resource group 3. The user equipment according to the received data The value of the bit, determines which resource groups carry the E-PDCCH. When L takes other integers greater than 1, the combination of data bits For the above description, refer to the above description, and details are not described herein again.

Example 2:

The division of the resource group refers to the above example 1, and will not be described here. Sending N bits to the user equipment, where each bit corresponds to a resource group, and a value of 1 indicates that the resource group corresponding to the bit can carry the E-PDCCH, and the value of the bit is 0, indicating the bit. The corresponding resource group does not carry the E-PDCCH; of course, the value of the bit in the actual application may be 0, indicating that the resource group corresponding to the bit can carry the E-PDCCH, which is not limited herein.

The data bit identification mode of the above example 1, a "log bit arrangement" corresponds to a resource group, and the data bit identification mode of the example 2, the N bits can identify up to N resource groups.

The embodiments of the present invention refer to two ways of identifying resources that can carry the E-PDCCH by using data bits. Those skilled in the art can associate with other ways of using resource bits for resource identification, which are all in the protection scope of the present invention. Inside.

In practical applications, the division of resource groups can be divided by the pre-set rules between the user equipment and the base station. Each resource group contains a number of resource units, which may be contiguous or discrete in the frequency domain. In the LTE system, the resource unit in the resource group notified to each user may be a resource block. For example, each resource group is a resource block group (RBG), and each resource block group contains one resource block, and the value of Μ varies according to the system bandwidth. As another example, each resource group may be a collection of resource blocks consisting of a number of resource blocks from each resource block group. As shown in Figure 7, resource group 1 consists of the first resource block extracted from RBG1 ~ RBG 分别, which consists of a total of resource blocks.

In addition, the unit of the resource that can carry the E-PDCCH may be a resource block or a resource block group. Specifically, the data bit signaling for identifying a resource block or a resource block group that can carry the E-PDCCH is sent to the user equipment by using physical layer dynamic signaling, so that the user equipment determines the bearable according to the data bit. A resource block or a resource block group of the E-PDCCH. Dynamic signaling indicates that the resource that can carry the E-PDCCH identifies a resource block or a resource block group by transmitting data bits.

It can be understood that the above dynamic signaling can be sent at the physical layer.

In the LTE system, the search space of the control channel includes a common search space and a UE-specific search space. Further, the dynamic signaling according to the embodiment of the present invention may be transmitted in a common search space, and is used to indicate resource information occupied by a user-specific search space. It can also be transmitted in the PDCCH domain to indicate the resource information occupied by the E-PDCCH.

In the LTE system, the transmission mode of the E-PDCCH includes distributed transmission and localized transmission. Further, the dynamic signaling according to the embodiment of the present invention may be used to indicate resource information occupied by E-PDCCH distributed transmission or centralized transmission.

It can be understood that, in the E-PDCCH transmission of the LTE system, an interleaver exists in the mapping from the logical resource to the physical resource or the mapping from the search space to the physical resource, and the function of the interleaver is to make the logical resource to the physical resource. The mapping is not performed in sequence. As shown in FIG. 8, E-PDCCH 1, E-PDCCH 2, E-PDCCH 3, E-PDCCH 4, and E-PDCCH N of the logical E-PDCCH are respectively mapped to the physical E-PDCCH. E-PDCCH 2, E-PDCCH N, E-PDCCH 1, E-PDCCH 3, E-PDCCH 4. The length of the interleaver is related to the size of the resource occupied by the E-PDCCH, and the number of resources occupied by the E-PDCCH, and the length of the interleaver is correspondingly long. Then, the dynamic signaling for indicating resource information according to the present invention is used. It also indicates the corresponding interleaver length.

The method for notifying the resource information of the control channel is provided by the base station, and the base station notifies the user equipment of the resource range for the E-PDCCH in two stages, so that the user equipment can determine the occupation of the bearer E-PDCCH. Resources, while avoiding large physical layer signaling overhead due to dynamic indications. Embodiment 3:

An embodiment of the present invention provides a method for determining resource information of a control channel, which is related to a user equipment side. As shown in FIG. 9, the method includes the following steps:

401. Receive first notification signaling sent by the base station.

The first notification signaling includes information of a first set of available resources that can carry an E-PDCCH.

402. Receive, by using dynamic signaling, information about a second available resource set that can be carried by the base station and can be carried by the E-PDCCH.

The second set of available resources is a subset of the first set of available resources, such that the user equipment determines from the second set of available resources the resources occupied by the bearer E-PDCCH.

403. Determine, by using the second available resource set, a resource that carries an E-PDCCH.

The determining the resource that carries the E-PDCCH from the second set of available resources may include the following situations:

When the information of the second available resource set received by the user equipment is: the information of the resource range of the E-PDCCH blind detection by the user equipment, the user equipment performs blind detection on the resource range of the E-PDCCH blind detection, and determines the a resource carrying an E-PDCCH;

In another case, when the information of the second available resource set received by the user equipment is: resource location information used to carry the E-PDCCH, the user equipment uses the resource indicated by the resource location information as the bearer E- The resource of the PDCCH.

In addition, when the unit of the resource that can carry the E-PDCCH is a resource group, the action of implementing the foregoing information about receiving the second set of available resources sent by the base station by using the dynamic signaling may be: Receiving, by the base station, a data bit for identifying a second set of available resources, so that the user equipment determines the resource that can carry the E-PDCCH according to the data bit. The data group can be used to identify the resource group that can carry the E-PDCCH. There are various options. For details, refer to the description in the second embodiment of the present invention. Said.

Taking FIG. 10 as an example, a method of notifying the resource information of the control channel on the base station side and a method of confirming the resource information on the user equipment side will be described.

501. The base station confirms a range of resources that can carry the E-PDCCH.

Before performing the transmission of the subframe to the user equipment, the base station first determines which resources in the subframe can carry the E-PDCCH.

502. The base station sends the first notification signaling to each user equipment by using static/semi-static signaling. The first notification signaling includes information of a first set of available resources that can carry an E-PDCCH.

Of course, in the actual application, the step 502 is not required, and the base station may directly perform step 503 after step 501.

503. Notify, by using dynamic signaling, that the user equipment can carry information about the second available resource set of the E-PDCCH.

The second set of available resources is a subset of the first set of available resources. In step 502, the user equipment can be configured to search for resources that can carry the E-PDCCH in the range of the first set of available resources, which is beneficial to reducing the search range.

504. Each user equipment separately receives information about a second available resource set that can be carried by the base station and can carry the E-PDCCH.

505. The base station transmits a subframe.

506. The user equipment receives the subframe.

Each user equipment receives the subframe, and finds a resource that can carry the E-PDCCH from the subframe according to the previously received information of the second available resource set that can carry the E-PDCCH.

507. Acquire control information in the E-PDCCH.

A method for determining resource information of a control channel according to an embodiment of the present invention, the base station notifying the user equipment of the resource range for the E-PDCCH, so that the user equipment is used for Determining the resources occupied by the E-PDCCH in the resource range of the E-PDCCH, avoiding the idleness of a large number of resources indicated for the E-PDCCH transmission due to the fact that only a part of the resource indication information is not timely in the prior art. Thereby reducing the waste of resources.

Embodiment 4:

The embodiment of the present invention provides a base station. As shown in FIG. 11, the base station includes a resource notification unit 61, configured to notify, by using dynamic signaling, that the user equipment can carry resource information of the E-PDCCH, so that the user equipment The resource information is used to determine the resources occupied by the bearer E-PDCCH.

Further, as shown in FIG. 12, the resource notification unit 61 specifically includes: a first notification subunit 611, configured to send first notification signaling to the user equipment, where the first notification signaling includes a bearable E-PDCCH Information about the first set of available resources. The second notification sub-unit 612 is configured to notify, by the dynamic signaling, information that the user equipment can carry the second available resource set of the E-PDCCH.

The second set of available resources is a subset of the first set of available resources, so that the user equipment determines that the bearer E-PDCCH is occupied by the second set of available resources included in the first set of available resources. resource of. Here, the first notification signaling is sent to the user equipment, which may be performed by static or semi-static signaling.

Further, as shown in FIG. 13, the resource notification unit 61 specifically includes a resource notification sub-unit 613, configured to notify the user equipment of the resource range information of the E-PDCCH blind detection, or notify the user equipment to carry the E-PDCCH. Resource location information.

In addition, the resource notification unit 61 is specifically configured to: when the unit of the resource that can carry the E-PDCCH is a resource group, the resource notification unit is specifically configured to send, to the user equipment, a resource that is used to identify the bearable E-PDCCH. The data bits of the group are such that the user equipment determines the resource group that can carry the E-PDCCH according to the data bits. The method of identifying the resource group by sending the data bit may have various optional manners. For details, refer to the description in the second embodiment of the present invention. I will not repeat them here.

The dynamic signaling may dynamically track the resources occupied by the E-PDCCH, that is, each E-PDCCH may have corresponding dynamic signaling to indicate the resource information occupied by each E-PDCCH, or may be every several The E-PDCCH sends a dynamic signaling to the user equipment to indicate resource information occupied by the E-PDCCH. The transmission period of static or semi-static signaling is longer than the transmission period of dynamic signaling. The dynamic resource indication method can better track the resources actually occupied by the E-PDCCH, effectively reduce the idleness of resources, and save resources. The dynamic signaling can all be sent at the physical layer.

In the LTE system, the search space of the control channel includes a common search space and a user-specific search space. Further, the dynamic signaling according to the embodiment of the present invention may be transmitted in a common search space, and used to indicate resource information occupied by a user-specific search space. Also available at

The PDCCH domain transmission is used to indicate resource information occupied by the E-PDCCH.

In the LTE system, the transmission mode of the E-PDCCH includes distributed transmission and centralized transmission. Further, the dynamic signaling according to the embodiment of the present invention may be used to indicate resource information occupied by E-PDCCH distributed transmission or centralized transmission.

The embodiment of the invention further provides a user equipment, as shown in FIG. 14 , including resource information. The receiving unit 71 and the resource determining unit 72.

The resource information receiving unit 71 is configured to receive, by using dynamic signaling, resource information that can be carried by the base station and can carry the E-PDCCH. The resource determining unit 72 is configured to determine a resource carrying the E-PDCCH from the resource information.

Further, as shown in FIG. 15, the resource information receiving unit 71 specifically includes a first receiving subunit 711 and a second receiving subunit 712.

The first receiving sub-unit 711 is configured to receive first notification signaling sent by the base station, where the first notification signaling includes information about a first available resource set that can carry the E-PDCCH.

The second receiving subunit 712 is configured to receive, by using the dynamic signaling, information about a second available resource set that can be carried by the base station and can carry the E-PDCCH. The second set of available resources is a subset of the first set of available resources, such that the user equipment determines, from the second set of available resources, the resources occupied by the bearer E-PDCCH.

Further, as shown in FIG. 16, the resource determining unit 72 further includes: a first resource determining subunit 721, configured to: when the received resource information that can carry the E-PDCCH is a resource for the user equipment to perform E-PDCCH blind detection In the case of the range information, the resource range that is blindly detected by the E-PDCCH is blindly detected, and the resource carrying the E-PDCCH is determined.

The second resource determining sub-unit 722 is configured to: when the received resource information that can carry the E-PDCCH is the resource location information used to carry the E-PDCCH, use the resource indicated by the resource location information as the bearer E- The resource of the PDCCH.

In addition, when the unit of the resource that can carry the E-PDCCH is a resource group, the resource information receiving unit 71 is specifically configured to receive a data bit that is sent by the base station to identify a resource group that can carry the E-PDCCH, so that Obtaining the resource group that can carry the E-PDCCH according to the data bit. For the description of the second embodiment of the present invention, the description of the second embodiment of the present invention is omitted.

A base station and a user equipment provided by an embodiment of the present invention are provided by an embodiment of the present invention. a method for determining resource information of a control channel, the base station notifying the user equipment of the resource range for the E-PDCCH, so that the user equipment determines the resource occupied by the E-PDCCH from the resource range for the E-PDCCH, It is avoided that a large amount of resources indicated to be used for E-PDCCH transmission are idle due to only a part of the resource indication information being untimely, thereby reducing waste of resources.

It will be understood by those skilled in the art that all or part of the steps of implementing the foregoing method embodiments may be performed by hardware related to program instructions. The foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request

A method for notifying a resource information of a control channel, comprising: notifying, by dynamic signaling, that a user equipment can carry an enhanced physical downlink control channel

The resource information of the E-PDCCH is such that the user equipment determines, from the resource information, the resource occupied by the bearer E-PDCCH.

The method according to claim 1, wherein the signaling, by the dynamic signaling, that the user equipment can carry the resource information of the E-PDCCH, specifically includes:

Transmitting, by the user equipment, first notification signaling, where the first notification signaling includes information of a first available resource set that can carry the E-PDCCH;

Notifying, by the dynamic signaling, that the user equipment can carry information of the second available resource set of the E-PDCCH;

The second set of available resources is a subset of the first set of available resources, such that the user equipment determines the resources occupied by the bearer E-PDCCH from the second set of available resources included in the first set of available resources. .

The method according to claim 1 or 2, wherein the notifying that the user equipment can carry the resource information of the E-PDCCH by using the dynamic signaling includes:

Notifying the user equipment of the resource range information for the E-PDCCH blind detection, or

Notifying the user equipment of the resource location information used to carry the E-PDCCH.

The method according to claim 3, wherein when the unit of the resource capable of carrying the E-PDCCH is a resource group, the user equipment is notified by dynamic signaling

The resource information of the E-PDCCH includes:

Transmitting, to the user equipment, data bits for identifying a resource group that can carry the E-PDCCH, so that the user equipment determines the resource group that can carry the E-PDCCH according to the data bits.

The method according to claim 4, wherein the sending, to the user equipment, the data bit for identifying the resource group that can carry the E-PDCCH, specifically includes: Sending "log bits" to the user equipment, where L is the total number of resource groups divided according to a preset resource group division manner, and "lo _g bits are shared ("lo _g " ² types of bit combinations, Each of the bit combination modes corresponds to at most one resource group; or

Sending N bits to the user equipment, where each bit corresponds to a resource group, and a value of 1 indicates that the resource group corresponding to the bit can carry the E-PDCCH, and the value of the bit is 0 to indicate the bit. The resource group corresponding to the bit does not carry the E-PDCCH.

The method according to claim 5, wherein the resource group division manner comprises: a resource group consisting of one resource block combination RBG; and/or

A resource group is composed of a set of RBs consisting of M resource blocks RBs from each RBG, where M is an integer greater than zero.

The method according to claim 1, wherein the dynamic signaling is transmitted in a common search space, and is used to indicate resource information occupied by a dedicated search space; or

The dynamic signaling is transmitted in the PDCCH domain of the physical downlink control channel, and is used to indicate resource information occupied by the E-PDCCH; or

The dynamic signaling is used to indicate resource information occupied by E-PDCCH distributed transmission or centralized transmission.

A method for determining resource information of a control channel, comprising: receiving, by dynamic signaling, resource information that can be carried by an E-PDCCH, and determining, by the resource information, a resource that carries an E-PDCCH.

The method according to claim 8, wherein the receiving, by the dynamic signaling, the resource information of the E-PDCCH that can be carried by the base station, includes:

Receiving, by the base station, first notification signaling, where the first notification signaling includes information about a first available resource set that can carry the E-PDCCH;

Receiving, by the dynamic signaling, a second available resource that can be carried by the base station and can carry the E-PDCCH The second set of available resources is a subset of the first set of available resources, such that the user equipment determines, from the second set of available resources, the resources occupied by the bearer E-PDCCH.

The method according to claim 8 or 9, wherein the determining, by the resource information, the resource that carries the E-PDCCH, specifically includes:

When the received resource information that can carry the E-PDCCH is the information of the resource range in which the user equipment performs the E-PDCCH blind detection, the resource range of the E-PDCCH blind detection is blindly detected, and the bearer E-PDCCH is determined. Resources; or

When the received resource information of the E-PDCCH is the resource location information for carrying the E-PDCCH, the resource indicated by the resource location information is used as the resource that carries the E-PDCCH.

The method according to claim 10, wherein, when the unit of the resource capable of carrying the E-PDCCH is a resource group, the resource information of the bearable E-PDCCH transmitted by the base station is received by the dynamic signaling. Specifically, including:

Receiving, by the base station, data bits for identifying a resource group that can carry the E-PDCCH, so as to obtain the resource group that can carry the E-PDCCH according to the data bits.

12. A base station, comprising:

The base station according to claim 12, wherein the resource notification unit specifically includes:

a first notification subunit, configured to send first notification signaling to the user equipment, where the first notification signaling includes information of a first available resource set that can carry the E-PDCCH;

a second notification subunit, configured to notify, by using the dynamic signaling, information that the user equipment can carry the second available resource set of the E-PDCCH; The second set of available resources is a subset of the first set of available resources, such that the user equipment determines the resources occupied by the bearer E-PDCCH from the second set of available resources included in the first set of available resources. .

The base station according to claim 12 or 13, wherein the resource notification unit specifically includes:

The resource notification sub-unit is configured to notify the user equipment of the resource range information of the E-PDCCH blind detection, or notify the user equipment of the resource location information used to carry the E-PDCCH.

The base station according to claim 14, wherein, when the unit of the resource that can carry the E-PDCCH is a resource group, the resource notification unit is specifically configured to send, to the user equipment, the identifier that can be carried. a data bit of a resource group of the PDCCH, such that the user equipment determines the resource group that can carry the E-PDCCH according to the data bit.

16. A user equipment, comprising:

And a resource determining unit, configured to determine, from the resource information, a resource that carries the E-PDCCH.

The user equipment according to claim 16, wherein the resource information receiving unit specifically includes:

a first receiving subunit, configured to receive first notification signaling sent by the base station, where the first notification signaling includes information about a first available resource set that can carry the E-PDCCH;

a second receiving subunit, configured to receive, by using the dynamic signaling, a bearer sent by the base station

Information of the second available resource set of the E-PDCCH;

The user equipment according to claim 16 or 17, wherein the resource determining unit further comprises: a first resource determining sub-unit, configured to: when the received resource information that can carry the E-PDCCH is information about a resource range in which the user equipment performs E-PDCCH blind detection, the resource range that is blindly detected by the E-PDCCH is blinded Detecting, determining the resource that carries the E-PDCCH;

a second resource determining sub-unit, configured to use the resource indicated by the resource location information as the bearer E-PDCCH when the received resource information that can carry the E-PDCCH is the resource location information used to carry the E-PDCCH resource of.

The user equipment according to claim 18, wherein, when the unit of the resource that can carry the E-PDCCH is a resource group, the resource information receiving unit is specifically configured to receive, by the base station, And a data bit of the resource group carrying the E-PDCCH, so as to acquire the resource group that can carry the E-PDCCH according to the data bit.