CN107734665B

CN107734665B - Resource indication method, resource determination method, resource indication device, resource determination device, network side equipment and mobile communication terminal

Info

Publication number: CN107734665B
Application number: CN201610659761.7A
Authority: CN
Inventors: 胡丽洁; 侯雪颖
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2016-08-11
Filing date: 2016-08-11
Publication date: 2020-12-04
Anticipated expiration: 2036-08-11
Also published as: CN107734665A

Abstract

The invention discloses a resource indicating method, a resource determining method, a resource indicating device, a network side device and a mobile communication terminal, wherein the resource indicating method is used for the network side device and comprises the following steps: determining a resource position indication parameter indicating frequency domain characteristics and time domain characteristics of transmission resources allocated for a downlink control channel; and transmitting the resource position indication parameter to the mobile communication terminal, and indicating the mobile communication terminal to determine the transmission resource according to the frequency domain characteristic and the time domain characteristic indicated by the resource position indication parameter. The invention provides a resource allocation scheme of a downlink control channel from the angles of time division multiplexing, frequency division multiplexing and discrete time frequency multiplexing with a service channel, and can solve part of problems possibly caused by shortened TTI.

Description

Resource indication method, resource determination method, resource indication device, resource determination device, network side equipment and mobile communication terminal

Technical Field

The present invention relates to mobile communications, and in particular, to a method and an apparatus for indicating and determining resources, a network side device, and a mobile communication terminal.

Background

In an LTE (Long Term Evolution) system, a PDCCH (Physical Downlink Control Channel) indicates a position, a transmission format, power information, and the like of a PDSCH (Physical Downlink Shared Channel) and a PUSCH (Physical Uplink Shared Channel) corresponding to a User Equipment (User Equipment) in a subframe.

The UE correctly demodulates and transmits data by reading control information in the PDCCH. With the increasing delay requirement, it has been determined that a shorter TTI (transmission Time Interval) can be supported, whether TDD (Time Division multiplexing) or FDD (Frequency Division multiplexing).

The conventional PDCCH is transmitted once per subframe and is located at the start of the subframe. However, there is no PDCCH design in the industry for the shorter duration TTI, i.e., sTTI.

Disclosure of Invention

In the embodiment of the invention, the resource allocation scheme of the downlink control channel is provided from the aspects of time division multiplexing, frequency division multiplexing and discrete time frequency multiplexing of the downlink control channel, and partial problems possibly caused by shortened TTI can be solved.

In order to achieve the above object, an embodiment of the present invention provides a resource indication method, used for a network side device, where the resource indication method includes:

determining a resource position indication parameter indicating frequency domain characteristics and time domain characteristics of transmission resources allocated for a downlink control channel;

and transmitting the resource position indication parameter to the mobile communication terminal, and indicating the mobile communication terminal to determine the transmission resource according to the frequency domain characteristic and the time domain characteristic indicated by the resource position indication parameter.

In order to achieve the above object, an embodiment of the present invention further provides a resource determining method, used in a mobile communication terminal, where the resource determining method includes:

receiving a resource position indication parameter from a network side;

and determining the transmission resources according to the frequency domain characteristics and the time domain characteristics of the transmission resources allocated to the downlink control channel and indicated by the resource position indication parameters.

In order to achieve the above object, an embodiment of the present invention further provides a resource indicating apparatus, used for a network side device, where the resource indicating apparatus includes:

an indication parameter determining module, configured to determine a resource location indication parameter indicating a frequency domain characteristic and a time domain characteristic of transmission resources allocated for a downlink control channel;

and the indication parameter transmission module is used for transmitting the resource position indication parameter to the mobile communication terminal and indicating the mobile communication terminal to determine the transmission resource according to the frequency domain characteristic and the time domain characteristic indicated by the resource position indication parameter.

In order to achieve the above object, an embodiment of the present invention further provides a resource determining apparatus, used in a mobile communication terminal, where the resource determining apparatus includes:

the frequency domain parameter receiving module is used for receiving resource position indication parameters from a network side;

and the first resource determining module is used for determining the transmission resources according to the frequency domain characteristics and the time domain characteristics of the transmission resources allocated to the downlink control channel and indicated by the resource position indication parameters.

In order to achieve the above object, an embodiment of the present invention further provides a resource indication method, used for a network side device, where the resource indication method includes:

allocating original transmission resources for the downlink control channel based on the reference transmission resource set;

determining a first resource allocation indication according to the distribution of the original transmission resource in a reference transmission resource set;

determining a target transmission resource actually allocated to a downlink control channel in an actual transmission resource set according to a resource mapping rule between the actual transmission resource set used by current scheduling and a reference transmission resource set;

and transmitting the first resource allocation indication to a mobile communication terminal, determining the original transmission resource by the mobile communication terminal according to the first resource allocation indication, and determining the target transmission resource in the actual transmission resource set according to the resource mapping rule.

receiving a first resource allocation indication from a network side;

determining an original transmission resource in a reference transmission resource set according to the first resource allocation indication;

and determining a target transmission resource which corresponds to the original transmission resource and is actually allocated to the downlink control channel by the network side in the actual transmission resource set according to a resource mapping rule between the actual transmission resource set and the reference transmission resource set.

the allocation module is used for allocating original transmission resources for the downlink control channel based on the reference transmission resource set;

a first indication determining module, configured to determine a first resource allocation indication according to distribution of the original transmission resource in a reference transmission resource set;

a first mapping module, configured to determine, according to a resource mapping rule between the actual transmission resource set and a reference transmission resource set used in current scheduling, a target transmission resource actually allocated to a downlink control channel in the actual transmission resource set;

a first indication transmission module, configured to transmit the first resource allocation indication to a mobile communication terminal, where the mobile communication terminal determines the original transmission resource according to the first resource allocation indication, and determines the target transmission resource in the actual transmission resource set according to the resource mapping rule.

a first indication receiving module, configured to receive a first resource allocation indication from a network side;

an original transmission resource determining module, configured to determine an original transmission resource in a reference transmission resource set according to the first resource allocation indication;

and a second mapping module, configured to determine, according to a resource mapping rule between the actual transmission resource set and the reference transmission resource set, a target transmission resource, which is actually allocated to the downlink control channel by the network side and corresponds to the original transmission resource, in the actual transmission resource set.

determining a position parameter recording a relative relation between the resource positions of transmission resources and reference resources allocated to a downlink control channel;

and transmitting the position parameter to the mobile communication terminal, and indicating the mobile communication terminal to determine the transmission resource according to the resource position relative relation of the transmission resource and the reference resource.

receiving a position parameter for recording the relative relation of the resource positions of the transmission resource and the reference resource from a network side;

and determining the transmission resource according to the actual position of the reference resource and the relative relation between the transmission resource and the resource position of the reference resource.

a position parameter determining module, configured to determine a position parameter recording a resource position relative relationship between a transmission resource allocated for a downlink control channel and a reference resource;

and the position parameter transmission module is used for transmitting the position parameters to the mobile communication terminal and indicating the mobile communication terminal to determine the transmission resources according to the relative resource position relation between the transmission resources and the reference resources.

the position parameter receiving module is used for receiving position parameters for recording the relative relation of the resource positions of the transmission resources and the reference resources from the network side;

and the third resource determining module is used for determining the transmission resource according to the actual position of the reference resource and the relative relation between the transmission resource and the resource position of the reference resource.

In order to achieve the above object, an embodiment of the present invention further provides a resource determining method, used in a network side or a mobile communication terminal, including:

selecting a resource allocation scheme meeting the requirement from predefined resource allocation schemes corresponding to the overhead according to the actual overhead of the current downlink control channel;

and allocating or confirming the downlink control channel resources according to the resource allocation scheme meeting the requirements.

In order to achieve the above object, an embodiment of the present invention further provides a resource determining apparatus, used in a network side or a mobile communication terminal, including:

the scheme selection module is used for selecting a resource configuration scheme meeting the requirement from the predefined resource configuration schemes corresponding to the overhead according to the actual overhead of the current downlink control channel;

and the execution module is used for allocating or confirming the downlink control channel resources according to the resource allocation scheme meeting the requirement.

In order to achieve the above object, an embodiment of the present invention further provides a network side device, including any of the above resource indicating apparatuses.

In order to achieve the above object, an embodiment of the present invention further provides a mobile communication terminal, including any of the above resource determination apparatuses.

The embodiment of the invention provides the resource allocation scheme of the downlink control channel from the aspects of time division multiplexing, frequency division multiplexing and discrete time frequency multiplexing of the downlink control channel, and can solve part of problems possibly caused by shortened TTI.

Drawings

FIG. 1 is a flowchart illustrating a resource indication method according to a first embodiment of the present invention;

FIG. 2 is a diagram illustrating a structure of a subframe including a plurality of TTIs according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a resource determination method according to a second embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a resource indicating apparatus according to a third embodiment of the present invention;

fig. 5 is a schematic structural diagram of a resource determination apparatus according to a fourth embodiment of the present invention;

FIG. 6 is a flowchart illustrating a resource indication method according to a fifth embodiment of the present invention;

FIG. 7 is a flowchart illustrating a resource determination method according to a sixth embodiment of the present invention;

FIG. 8 is a diagram illustrating resource mapping in an embodiment of the invention;

FIGS. 9a and 9b are diagrams illustrating the results of two resource mappings in an embodiment of the invention;

fig. 10 is a schematic structural diagram of a resource indicating apparatus according to a seventh embodiment of the present invention;

fig. 11 is a schematic structural diagram of a resource determination apparatus according to an eighth embodiment of the present invention;

FIG. 12 is a flowchart illustrating a resource indication method according to a ninth embodiment of the invention;

FIGS. 13 a-13 j are schematic diagrams illustrating various patterns of a ninth embodiment of the present invention;

fig. 14 is a flowchart illustrating a resource determination method according to a tenth embodiment of the present invention;

fig. 15 is a schematic structural diagram of a resource indicating apparatus according to an eleventh embodiment of the present invention;

fig. 16 is a schematic configuration diagram of a resource determination device according to a twelfth embodiment of the present invention.

Detailed Description

In the embodiment of the invention, the resource allocation scheme of the downlink control channel is provided from the aspects of time division multiplexing, frequency division multiplexing and discrete time frequency multiplexing of the downlink control channel, and the problem possibly caused by shortened TTI can be solved.

In the prior art, the PDCCH and other channels are allocated resources in a time division manner. However, this method has a problem that the resource utilization rate is too low for sTTI, and this is explained as follows.

For LTE-TDD systems, which support a TTI of 0.5ms length (7 OFDM symbols), a PDCCH of 2 OFDM symbols would need to occupy 28.6% (2/7) of the total TTI resource, plus pilots for data demodulation and measurement, the transmission resource for data transmission in the TTI is less than 70%.

For the LTE-FDD system, since the shortest length of the supported TTI is 2 OFDM symbols, the resource utilization rate is lower.

In order to improve resource utilization, a resource indication method according to a first embodiment of the present invention is used for a network device, and as shown in fig. 1, the resource indication method includes:

step 101, determining a resource position indication parameter indicating a frequency domain characteristic and a time domain characteristic of a transmission resource allocated for a downlink control channel;

and 102, transmitting the resource position indication parameter to the mobile communication terminal, and indicating the mobile communication terminal to determine the transmission resource according to the frequency domain characteristic and the time domain characteristic indicated by the resource position indication parameter.

Different from the prior art, in the resource indication method according to the first embodiment of the present invention, when the network side indicates the transmission resource, the network side does not indicate the transmission resource with a single frequency domain characteristic or a single time domain characteristic, but indicates the frequency domain characteristic and the time domain characteristic of the transmission resource through the resource location indication parameter, which greatly improves the flexibility of transmission resource allocation, and different indication methods can solve different problems, which are described below.

When the method of the embodiment of the present invention is applied to a scenario where the transmission resource is allocated in a time division multiplexing manner, the resource position indication parameter not only can indicate which symbols the transmission resource is located in, but also can indicate the bandwidth of the transmission resource on the symbols, that is, the allocated resource of the downlink control channel no longer occupies all the bandwidth in the frequency domain, and instead, part or all of the bandwidth in the frequency domain can be used. And the distribution of the transmission resources over the frequency domain is determined by a resource location indication parameter.

Therefore, by using the resource indication method of the first embodiment of the present invention, a part of bandwidth meeting the data transmission requirement can be allocated on the frequency domain as required to carry the downlink control channel, and the remaining part can be used for other purposes, thereby improving the utilization rate of resources.

In the embodiment of the present invention, the transmission resources may be continuously distributed in the frequency domain or discretely distributed, and different forms need to design different resource location indication parameters to indicate the distribution in the frequency domain, which is described below.

< Transmission resources allocated to Downlink control channel are continuously distributed in frequency domain >

When the transmission resources allocated for the downlink control channel are continuously distributed in the frequency domain, there are several ways to indicate the distribution of the transmission resources in the frequency domain, such as:

1. allocating a first part of the bandwidth or a last part of the bandwidth to a downlink control channel by default, wherein in a frequency domain, the resource position indication parameter only needs to include a bandwidth parameter capable of indicating the bandwidth of the transmission resource;

this approach can simplify the design of the frequency domain parameters.

2. In the frequency domain, the resource position indication parameter includes both a frequency point parameter (for determining a starting point and/or an end point of the transmission resource in the frequency domain) and a bandwidth parameter;

in this way, any continuous part of the bandwidth can be flexibly assigned to the downlink control channel, and the flexibility of resource allocation is improved.

However, in any of the above schemes, the more the number of bits allocated to the resource location indicator parameter in the frequency domain is, the more diversified allocation schemes can be provided, and the following description will be made by taking an example in which the width of the downlink control channel is 1OFDM symbol.

Assuming that the first part of the bandwidth is allocated to the downlink control channel by default, when the bit number of the field for indicating the distribution of the transmission resources on the frequency domain by the resource location indication parameter is 2, the bandwidth occupancy ratio of 4 can be indicated, and when the bit number is 3, the bandwidth occupancy ratio of 8 can be indicated.

< Transmission resources allocated to Downlink control channel are discretely distributed in frequency domain >

When the transmission resources allocated for the downlink control channel are distributed discretely in the frequency domain, there are several ways to indicate the distribution of the transmission resources in the frequency domain, such as:

1. the transmission resources are uniformly distributed in the frequency domain, and the resource location indication parameter needs to be able to indicate the starting point, the number of segments, and the segment interval in the frequency domain.

2. The transmission resources are not uniformly distributed in the frequency domain, and the resource location indication parameter needs to indicate the starting point, the bandwidth of each segment, and the bandwidth interval between adjacent segments in the frequency domain.

3. In the frequency domain, the resource location indication parameter directly indicates the start and end points of each segment.

In contrast, the discrete distribution of the transmission resources allocated for the downlink control channel in the frequency domain has greater flexibility, but it requires more overhead to transmit the resource location indication parameter, and the system design may select a suitable transmission resource distribution mode according to the requirement.

In the specific embodiment of the present invention, a specific implementation manner of the bandwidth parameter is not limited, for example, the bandwidth actually occupied by the transmission resource may be described, or a ratio of the actually occupied bandwidth to the total bandwidth may be described, or another manner may be used, for example, in a frequency domain, the ratio of the bandwidth of the transmission resource to the total bandwidth is described by using the bandwidth parameter, and this manner realizes flexible configuration of the bandwidth of the transmission resource allocated to the downlink control channel with a smaller overhead, as shown in the following examples.

Assuming that the frequency domain parameter is 2bit, the width of the downlink control channel is 1OFDM symbol, the value 00 represents the full bandwidth, the value 01 represents the 1/2 bandwidth, the value 10 represents the 1/3 bandwidth, and the value 11 represents the 1/4 bandwidth, as shown in the following table.

Assignment of bandwidth parameters	Bandwidth of downlink control channel
		00	Full bandwidth
01	1/2 bandwidth
		10	1/3 bandwidth
11	1/4 bandwidth

In the first embodiment of the present invention, the downlink control channel may include one or more (greater than or equal to 2) resource units in the time domain, where the resource units are OFDM symbols, but the embodiment of the present invention is not limited thereto.

In order to reduce overhead, in the first embodiment of the present invention, when the downlink control channel includes a plurality of (greater than or equal to 2) resource units in the time domain, the bandwidth parameter is used to indicate a bandwidth occupied by one resource unit of the plurality of resource units, and other resource units of the plurality of resource units occupy the whole bandwidth by default.

In the above manner, a field needs to be added to indicate which resource unit is one of the multiple resource units, and in consideration of overhead, in the first embodiment of the present invention, a network side and a terminal side may agree that the resource unit is the last resource unit of the multiple resource units.

That is, when the bandwidth parameter is 2 bits and the width of the downlink control channel is 2 OFDM symbols, the assigned meaning is as shown in the following table.

Bandwidth parameter assignment	Bandwidth of downlink control channel
		00	Full bandwidth of the first OFDM symbol and full bandwidth of the second OFDM symbol
01	Full bandwidth of the first OFDM symbol, 1/2 bandwidth of the second OFDM symbol
		10	Full bandwidth of the first OFDM symbol, 1/3 bandwidth of the second OFDM symbol
11	Full bandwidth of the first OFDM symbol, 1/4 bandwidth of the second OFDM symbol

Of course, various situations with different widths of the downlink control channel may also be considered comprehensively, for example, the resource location indicator parameter is set to 3 bits, and the meaning that the resource location indicator parameter can be expressed after being assigned is as follows:

000, corresponding to the case that the width of the downlink control channel is 1OFDM symbol, and the downlink control channel occupies the full bandwidth;

001, corresponding to the case that the width of the downlink control channel is 2 OFDM symbols, and the downlink control channel occupies the full bandwidth of the first symbol and occupies the full bandwidth of the second symbol;

010, corresponding to the case that the width of the downlink control channel is 1OFDM symbol, and the downlink control channel occupies 1/2 bandwidth;

011, corresponding to the case that the downlink control channel has a width of 2 OFDM symbols, and the downlink control channel occupies the full bandwidth of the first symbol and occupies the 1/2 bandwidth of the second symbol;

100, corresponding to the case that the width of the downlink control channel is 1OFDM symbol, and the downlink control channel occupies 1/3 bandwidth;

001, corresponding to the case that the width of the downlink control channel is 2 OFDM symbols, and the downlink control channel occupies the full bandwidth of the first symbol and occupies the 1/3 bandwidth of the second symbol;

110, corresponding to the case that the width of the downlink control channel is 1OFDM symbol, and the downlink control channel occupies 1/4 bandwidth;

111, corresponding to the case that the width of the downlink control channel is 2 OFDM symbols, and the downlink control channel occupies the full bandwidth of the first symbol and occupies 1/4 bandwidth of the second symbol.

It can be seen that the above-mentioned resource location indication parameter not only indicates the time domain characteristics of the transmission resource (e.g. 000 indicates that the first symbol is selected), but also indicates the frequency domain characteristics of the transmission resource (e.g. 111 can indicate that 1/4 bandwidth of the second symbol is occupied), so that a more flexible allocation scheme can be implemented than the prior art.

In the first embodiment of the present invention, the resource location indication parameter can be notified to the mobile communication terminal in various ways, which are described below.

< control channel Transmission through subframe >

In the first embodiment of the present invention, as shown in fig. 2, wherein a subframe includes a plurality of TTIs, increased frequency domain parameters may be transmitted by using a format (a portion filled with a dotted line in fig. 2) of a PDCCH in resources reserved for the PDCCH in the subframe.

Because each subframe can be transmitted only once, the method is suitable for the condition that the overheads of all the sTTIs in each subframe are determined when the traditional control channel is scheduled to be transmitted, and the control channels with consistent overheads can be arranged in all the sTTIs in the same subframe, and only one control channel overhead indication needs to be transmitted.

Of course, control channel overhead can also be indicated independently for each sTTI, and these indication bits are multiplexed in the same DCI. The DCI may be transmitted in a Common Search Space (CSS) domain of a conventional control channel or a User Search Space (USS) domain, and the UE supporting the sTTI transmission may acquire a control channel resource of the sTTI by scrambling a Common RNTI (Radio Network temporary Identity) of the UE supporting the sTTI transmission. The multiplexed data in the DCI may further include a bandwidth position occupied by the sTTI in the current subframe, and the like.

< control channel transmission over Current Transmission time Interval >

Alternatively, the Resource location indication parameter may be transmitted at the start position of each sTTI, such as in the first n REs (Resource elements) of the frequency domain index of the first OFDM symbol, or as scattered transmission in the first OFDM symbol of the sTTI (for the case of dynamic numbering of the control channel overhead in each sTTI).

A second embodiment of the present invention provides a resource determining method for a mobile communication terminal, as shown in fig. 3, the resource determining method includes:

step 301, receiving a resource location indication parameter from a network side;

step 302, determining the transmission resource according to the frequency domain characteristic and the time domain characteristic of the transmission resource allocated to the downlink control channel indicated by the resource location indication parameter.

When the network side indicates the transmission resource, the network side does not indicate the transmission resource by using a single frequency domain characteristic or a single time domain characteristic, but indicates the frequency domain characteristic and the time domain characteristic of the transmission resource simultaneously through the resource position indication parameter, so that the flexibility of transmission resource allocation is greatly improved, and different indication modes can solve different problems, which are respectively described as follows.

When the method of the embodiment of the present invention is applied to a scenario where the transmission resource is allocated in a time division multiplexing manner, the resource position indication parameter not only can indicate which symbols the transmission resource is located in, but also can indicate the bandwidth of the transmission resource on the symbols, that is, the allocated resource of the downlink control channel no longer occupies all the bandwidth in the frequency domain, and instead, can use part or all of the bandwidth in the frequency domain. And the distribution of the transmission resources over the frequency domain is determined by the frequency domain parameters.

When the transmission resource is allocated in a time division multiplexing mode, the resource position indication parameter at least comprises a bandwidth parameter, and is used for determining the bandwidth of the transmission resource.

The resource position indication parameter further includes a frequency point parameter for determining a start point and/or an end point of the transmission resource in the frequency domain.

The frequency domain parameter may be used to describe a ratio of a bandwidth of the transmission resource to a total bandwidth.

And when the transmission resource comprises a plurality of resource units (such as OFDM symbols) in the time domain, the bandwidth parameter is used to indicate the bandwidth occupied by one of the resource units, and the other resource units in the resource units are full bandwidth.

To reduce the overhead of the frequency domain parameters, one resource unit of the plurality of resource units is the last one of the plurality of resource units.

Of course, the transmission resources may also be distributed discretely in the frequency domain, and the indication manner is described in detail above and will not be repeated here.

The frequency domain parameters may be transmitted through a control channel of a subframe, or may be transmitted through a control channel of a current transmission time interval.

A third embodiment of the present invention further provides a resource indicating apparatus, configured to be used in a network side device, as shown in fig. 4, where the resource indicating apparatus includes:

In the above resource indicating device, when the transmission resource is allocated in a time division multiplexing manner, the resource location indication parameter at least includes a bandwidth parameter, which is used to determine a bandwidth of the transmission resource.

In the above-mentioned resource indicating device, the resource location indicating parameter further includes a frequency point parameter, which is used to determine a starting point and/or an ending point of the transmission resource in the frequency domain.

The above resource indicator, wherein the bandwidth parameter is used to describe a ratio of a bandwidth of the transmission resource to a total bandwidth.

In the above-mentioned resource indicating device, when the transmission resource includes a plurality of resource units in a time domain, the bandwidth parameter is used to indicate a bandwidth occupied by one resource unit of the plurality of resource units, and other resource units of the plurality of resource units occupy the entire bandwidth.

The above resource indicator, wherein one resource unit of the plurality of resource units is the last resource unit of the plurality of resource units.

The above resource indicator, wherein the transmission resources are distributed discretely in the frequency domain.

In the above resource indicator, the frequency domain parameter may be transmitted through a control channel of a subframe, or may be transmitted through a control channel of a current transmission time interval.

A fourth embodiment of the present invention further provides a resource determining apparatus, for a mobile communication terminal, as shown in fig. 5, the resource determining apparatus includes:

The above-mentioned resource determining apparatus, wherein the transmission resources may be distributed continuously in the frequency domain, and the resource location indication parameter at least includes a bandwidth parameter for determining the bandwidth of the transmission resources.

In the above-mentioned resource determining apparatus, the frequency domain parameter may further include a frequency point parameter, which is used to determine a starting point and/or an ending point of the transmission resource in the frequency domain.

The above resource determination apparatus, wherein the bandwidth parameter is used to describe a ratio of a bandwidth of the transmission resource to a total bandwidth.

In the above-mentioned resource determining apparatus, when the transmission resource includes a plurality of resource units in a time domain, the bandwidth parameter is used to indicate a bandwidth occupied by one resource unit of the plurality of resource units, and other resource units of the plurality of resource units are full bandwidths.

The above resource determination device, wherein one resource unit of the plurality of resource units is the last resource unit of the plurality of resource units.

The above resource determination apparatus, wherein the transmission resources are distributed discretely in the frequency domain.

In the above resource determination apparatus, the frequency domain parameter may be transmitted through a control channel of a subframe, or may be transmitted through a control channel of a current transmission time interval.

In the prior art, the EPDCCH and other channels may be allocated in a frequency division manner. However, this method has a problem that the resource configured for the mobile communication terminal exceeds the scope of the sTTI for the sTTI, and this is illustrated as follows.

Assuming that at a certain time, the bandwidth of the sTTI is 100RB, and the resources configured for EPDCCH by the network side based on the bandwidth of 100RB are 30 th and 60 th RB, and at the next time, the bandwidth of the sTTI is changed to 50RB, it can be found that the 60 th RB configured at the previous time does not belong to the sTTI, but belongs to the conventional PDSCH, and finally, the communication failure of the mobile communication terminal is caused.

A resource indication method in a fifth embodiment of the present invention is used for a network side device, and as shown in fig. 6, the resource indication method includes:

601, allocating original transmission resources for a downlink control channel based on a reference transmission resource set;

step 602, determining a first resource allocation indication according to the distribution of the original transmission resource in a reference transmission resource set;

step 603, determining a target transmission resource actually allocated to a downlink control channel in an actual transmission resource set according to a resource mapping rule between the actual transmission resource set used by current scheduling and a reference transmission resource set;

step 604, transmitting the first resource allocation indication to a mobile communication terminal, and the mobile communication terminal determining the original transmission resource according to the first resource allocation indication and determining the target transmission resource in the actual transmission resource set according to the resource mapping rule.

A resource determining method according to a sixth embodiment of the present invention is applied to a mobile communication terminal, and as shown in fig. 7, the resource determining method includes:

step 701, receiving a first resource allocation indication from a network side;

step 702, determining an original transmission resource in a reference transmission resource set according to the first resource allocation indication;

step 703, determining a target transmission resource, which is actually allocated to the downlink control channel by the network side and corresponds to the original transmission resource in the actual transmission resource set, according to a resource mapping rule between the actual transmission resource set and the reference transmission resource set.

In the fifth embodiment of the present invention, in consideration of the time-varying characteristic of the TTI, the network side allocates the original transmission resource for the downlink control channel based on the reference transmission resource set, and determines the target transmission resource actually allocated for the downlink control channel in the actual transmission resource set according to the resource mapping rule between the actual transmission resource set and the reference transmission resource set. And when the mobile communication terminal receives the resource allocation instruction based on the reference transmission resource set from the network side, the mobile communication terminal determines the target transmission resource actually allocated for the downlink control channel by the network side in the actual transmission resource set according to the resource mapping rule between the actual transmission resource set and the reference transmission resource set.

By the method, the mobile communication terminal can accurately position the transmission resource actually allocated to the downlink control channel by the network side, and the occurrence of communication failure of the mobile communication terminal is avoided.

Meanwhile, in the fifth embodiment of the invention, the network side can inherit the original method in the aspect of resource allocation indication without changing, so that the modification of the network side in the network evolution process is simplified.

In order to simplify the mapping rule, in the fifth embodiment of the present invention, the target transmission resource is allocated for the downlink control channel in a frequency division multiplexing manner, that is, the original transmission resource and the target transmission resource are continuously distributed in the time domain.

In the specific embodiment of the present invention, when allocating resources for a downlink control channel in a frequency division multiplexing manner, the mapping rule needs to pay attention to the following two aspects:

1. the amount of resources allocated;

2. the location of the allocated resource in the actual set of transmission resources.

After the two aspects are determined, the mobile communication terminal can determine the target transmission resource actually allocated to the downlink control channel by the network side in the actual transmission resource set.

The following is described with respect to the above two aspects, respectively.

In terms of the amount of allocated resources, it should be ensured that the amount of target transmission resources is greater than or equal to the amount of original transmission resources, so as to avoid that the allocated resources cannot meet the data transmission requirement.

When allocating target transmission resources for a downlink control channel is allocated in a frequency division multiplexing manner, that is, when the original transmission resources and the target transmission resources are continuously distributed in a time domain, it is assumed that, as shown in fig. 8, the reference transmission resource set includes X1 time domain resource units in the time domain, the actual transmission resource set includes X2 time domain resource units in the time domain, the original transmission resources are N1 frequency domain resource units that are continuous in the X1 time domain resource units, the target transmission resources are N2 frequency domain resource units that are continuous in the X2 time domain resource units, and then the resource number of the original transmission resources is: N1X 1, and the number of resources of the target transmission resource is: N2X 2, thus: n2 is greater than or equal to N1X 1/X2.

However, in order to avoid the waste of resources, N2 is equal to or greater than N1 × X1/X2.

By the above rules, it is ensured that the target transmission resource allocated in the actual transmission resource set in the frequency division multiplexing manner can meet the requirement of data transmission.

For the position of the target transmission resource in the actual transmission resource set, in the embodiment of the present invention, a plurality of rules may be established to set the position of the target transmission resource in the actual transmission resource set, which is described as follows.

1. Continuously distributing on a frequency domain, and configuring an allocation starting position of a target transmission resource in an actual transmission resource set on the frequency domain;

2. the method comprises the steps of performing equal-distance discrete distribution on a frequency domain, and configuring an allocation starting position of a target transmission resource in an actual transmission resource set and a distance between adjacent target transmission resources on the frequency domain;

3. the target transmission resources are distributed discretely at different distances in a frequency domain, and the distribution starting position of the target transmission resources in the actual transmission resource set and the distance between all adjacent target transmission resources in the frequency domain are configured in the frequency domain;

4. distributed in such a way that the frequency diversity gain is highest;

……

in an embodiment of the present invention, an implementation manner is further provided for determining a position of a target transmission resource in an actual transmission resource set based on a distribution of original transmission resources in a reference transmission resource set, which is described as follows.

As shown in fig. 8, assuming that the reference transmission resource set includes Y1 frequency-domain resource units in the frequency domain, and the actual transmission resource set includes Y2 frequency-domain resource units in the frequency domain, there are corresponding pairs of frequency-domain resource units in the N2 frequency-domain resource units and the N1 frequency-domain resource units, and the sequence number of the frequency-domain resource unit belonging to the target transmission resource in the pair of frequency-domain resource units in the Y2 frequency-domain resource units is: a1 × Y2/Y1, where a1 is the sequence number of the frequency-domain resource unit in the Y1 frequency-domain resource units for the frequency-domain resource unit belonging to the original transmission resource.

Examples are as follows:

assuming that X1 is 14, X2 is 7, Y1 is 100, and Y2 is 50, and the 5 th and 90 th frequency domain resource units are allocated as the original transmission resources in the reference transmission resource set, it may be determined that N2 is 2 and 14/7 is 4 first.

For the position, the position corresponding to the first frequency domain resource unit in the actual transmission resource set is: the rounding of (5 × 50/100 — 2.5) may be 2 or 3.

And the corresponding position of the other frequency domain resource unit is: (90 × 50/100 ═ 45).

The other two frequency domain resource units may be determined according to the determined frequency domain resource units, such as adjacent to the determined frequency domain resource units, or distributed at intervals between the determined frequency domain resource units.

The corresponding mapping result is shown in fig. 9 a.

An example of the mapping result of the TTI becoming longer in the time domain is shown in fig. 9b, which is described as follows.

If the position of the first frequency domain unit in the actual transmission resource set is determined according to the position of the first frequency domain unit in the reference transmission resource set, and the second frequency domain unit in the reference transmission resource set can be replaced by the first frequency domain unit in the actual transmission resource set due to the proportional relation of the time durations of the two in the time domain. The position of the second frequency domain unit in the actual transmission resource set is thus determined from the position of the third frequency domain unit in the reference transmission resource set, and so on.

The first resource allocation indication may be transmitted in a manner of the prior art, but may also be transmitted through a control channel of a subframe as described previously, or may also be transmitted through a control channel of a current transmission time interval, and a description thereof is not repeated here.

A seventh embodiment of the present invention further provides a resource indicating apparatus, configured to be used in a network side device, as shown in fig. 10, where the resource indicating apparatus includes:

The eighth embodiment of the present invention further provides a resource determining apparatus, used in a mobile communication terminal, as shown in fig. 11, the resource determining apparatus includes:

In the seventh and eighth embodiments described above, the original transmission resource and the target transmission resource are distributed continuously in the time domain.

In the seventh and eighth embodiments, the reference transmission resource set includes X1 time-domain resource units in the time domain, the actual transmission resource set includes X2 time-domain resource units in the time domain, the original transmission resource is N1 frequency-domain resource units consecutive to the X1 time-domain resource units, the target transmission resource is N2 frequency-domain resource units consecutive to the X2 time-domain resource units, and N2 is a smallest positive integer greater than or equal to N1X 1/X2.

In the seventh and eighth embodiments described above, the reference transmission resource set includes Y1 frequency-domain resource units in the frequency domain, the actual transmission resource set includes Y2 frequency-domain resource units in the frequency domain, there are corresponding pairs of the N2 frequency-domain resource units and the N1 frequency-domain resource units, and the sequence number of the frequency-domain resource unit belonging to the target transmission resource in the pair of frequency-domain resource units in the Y2 frequency-domain resource units is: a1 × Y2/Y1, where a1 is the sequence number of the frequency-domain resource unit in the Y1 frequency-domain resource units for the frequency-domain resource unit belonging to the original transmission resource.

A resource indication method according to a ninth embodiment of the present invention is used for a network side device, and as shown in fig. 12, the resource indication method includes:

step 1201, determining a position parameter recording a relative relationship between a transmission resource allocated for a downlink control channel and a resource position of a reference resource;

step 1202, transmitting the location parameter to a mobile communication terminal, and instructing the mobile communication terminal to determine the transmission resource according to the resource location relative relationship between the transmission resource and the reference resource.

In the foregoing embodiment, the transmission resources allocated to the downlink control channel are either continuous in the time domain or continuous in the frequency domain, but in the ninth embodiment of the present invention, the transmission resources are determined according to the position of the reference signal, so that the transmission resources allocated to the downlink control channel can achieve a more flexible downlink control channel distribution design in the time domain and the frequency domain at the same time.

In the ninth embodiment of the present invention, two factors need to be determined, that is, the actual transmission resources can be located, which are:

a reference resource;

relative to the location of the reference resource.

In the ninth embodiment of the present invention, the selection of the reference resource only needs to satisfy one condition, that is: the terminal side can obtain the resources before the downlink control channel according to the existing flow.

If the terminal side can obtain the reference resource before the downlink control channel according to the existing flow, the terminal side can further position the transmission resource according to the relative position between the two.

In an LTE network, the network side typically allocates a part of the system bandwidth to the mobile communication terminals, i.e. allocates a specific transmission resource to the mobile communication terminals at a specific time.

In order to ensure that the mobile communication terminal can determine the positions of these transmission resources, the network side needs to send downlink reference signals to the mobile communication terminal for coherent detection and demodulation at the terminal side.

The downlink reference signals include CRS (cell-specific reference signal, also called common reference signal) and DRS (user reference signal), and these two downlink reference signals can be acquired by the terminal side before the downlink control channel.

Meanwhile, for the CRS, there is a downlink pilot time slot of each downlink subframe and a downlink pilot time slot of a special subframe. Within a resource block, there is one every six subcarriers in the frequency domain and one every three symbols in the time domain, so the advantage of the number also enables the way of indicating transmission resources to be diversified.

Therefore, in the embodiment of the present invention, the resource where the two signals are located is selected as the reference resource.

It should be understood that, in the ninth embodiment of the present invention, a resource where other downlink signals are located may also be selected as a reference, as long as it can be acquired before the downlink control channel is acquired, and it is not described herein too much.

After the reference resource is determined, the position of the transmission resource relative to the reference resource needs to be determined, and the CRS signals are used as an example to describe below.

Fig. 13 a-13 e show various possible transmission resource designs, wherein the hatched REs indicate the positions of CRSs, and the dotted REs indicate the positions of transmission resources.

As shown in fig. 13a, the position relationship of the transmission resource relative to the reference resource is: adjacent to and behind the reference resource in the frequency domain;

as shown in fig. 13b, the position relationship of the transmission resource relative to the reference resource is: adjacent to and in front of the reference resource in the frequency domain;

as shown in fig. 13c, the position relationship of the transmission resource relative to the reference resource is: adjacent to and in front of the reference resource in the time domain;

as shown in fig. 13d, the position relationship of the transmission resource relative to the reference resource is: adjacent to and behind the reference resource in the time domain.

As shown in fig. 13e, the position relationship of the transmission resource relative to the reference resource is: adjacent to the reference resource in the frequency domain;

in the above patterns, fig. 13a, 13b and 13e are by default distributed continuously for the full time length in the time domain, while fig. 13c and 13d are by default distributed continuously for the full bandwidth in the frequency domain.

Of course, the method according to the embodiment of the present invention can also be distributed discretely in both time domain and frequency domain, please refer to fig. 13 f-13 i, in which:

as shown in fig. 13f, the position relationship of the transmission resource relative to the reference resource is: the same in time domain, adjacent to and before the reference resource in frequency domain;

as shown in fig. 13g, the position relationship of the transmission resource relative to the reference resource is: adjacent to the reference resource in the frequency domain, the same in the time domain;

as shown in fig. 13h, the position relationship of the transmission resource relative to the reference resource is: adjacent to the reference resource in the time domain and behind the reference resource, the same in the frequency domain;

as shown in fig. 13i, the position relationship of the transmission resource relative to the reference resource is: adjacent to the reference resource in a time domain or a frequency domain, and at least one of the time domain or the frequency domain is the same.

In the modes shown in fig. 13 f-fig. 13i, the transmission resource is set to be adjacent to the reference signal (the transmission resource is adjacent to the reference resource in the time domain and/or the frequency domain), which is beneficial to accurately demodulating the downlink control channel.

Referring to fig. 13a to 13i, in an embodiment of the present invention, the location parameter may be set as a pattern parameter, and different pattern parameters correspond to different numbers of transmission resources and/or different relative resource locations. The network side only needs to inform the terminal of the number of the pattern parameter, and the terminal can determine the position of the transmission resource relative to the reference resource according to the determined position of the transmission resource, and further determine the actual position of the transmission resource according to the position of the reference resource.

In the above diagrams of fig. 13a to 13i, all the diagrams are configured uniformly over the entire bandwidth or the entire time domain, and in order to further improve the flexibility, in the embodiment of the present invention, the area where the transmission resource is located may be further controlled.

In this way, the resource indication method according to the ninth embodiment of the present invention further includes:

determining a second resource allocation indication;

and transmitting the second resource allocation instruction to the mobile communication terminal, instructing the mobile communication terminal to determine the region where the transmission resource is located according to the second resource allocation instruction, and determining the transmission resource in the region according to the resource position relative relation between the transmission resource and the reference resource.

In the above manner, the bandwidth and time length of the transmission resource can be limited, and as shown in fig. 13j, the transmission resource can be limited to be allocated only at the first 1/X (e.g. 1/2, 1/3, … …) of the time domain.

Of course, the definition may be performed in the frequency domain, or both the time domain and the frequency domain may be defined, and will not be further described herein.

In the embodiment of the present invention, the location parameter may also be transmitted through a control channel of a subframe or a control channel of a current transmission time interval, and a description thereof is not repeated here.

A resource determining method according to a tenth embodiment of the present invention is applied to a mobile communication terminal, and as shown in fig. 14, the resource determining method includes:

1401, receiving a position parameter recording a relative relation between a transmission resource and a resource position of a reference resource from a network side;

step 1402, determining the transmission resource according to the actual position of the reference resource and the relative relationship between the transmission resource and the resource position of the reference resource.

In the above method for determining resources, the reference resource is a transmission resource in which a cell reference signal or a user reference signal is located.

In the above method for determining resources, the transmission resource is adjacent to the reference resource in the time domain and/or the frequency domain.

The resource determining method further includes:

receiving a second resource allocation indication;

determining the area where the transmission resource is located according to the second resource allocation indication;

and the step of determining the transmission resource according to the actual position of the reference resource and the relative relation between the transmission resource and the resource position of the reference resource is executed in the determined area.

In the above method for determining resources, the location parameter is transmitted through a control channel of a subframe or a control channel of a current transmission time interval.

A resource indicating apparatus according to an eleventh embodiment of the present invention is a resource indicating apparatus for a network side device, and as shown in fig. 15, the resource indicating apparatus includes:

In the above mentioned resource indicating apparatus, the reference resource is a transmission resource in which a cell reference signal or a user reference signal is located.

The above mentioned resource indication apparatus, wherein the transmission resource is adjacent to the reference resource in time domain and/or frequency domain.

The above resource indicating apparatus further includes:

a second indication determining module, configured to determine a second resource allocation indication;

and the second indication transmission module is used for transmitting the second resource allocation indication to the mobile communication terminal, indicating the mobile communication terminal to determine the area where the transmission resource is located according to the second resource allocation indication, and determining the transmission resource in the area according to the resource position relative relation between the transmission resource and the reference resource.

The above resource indicator, wherein the location parameter is transmitted through a control channel of a subframe or a control channel of a current transmission time interval.

A resource determining apparatus according to a twelfth embodiment of the present invention is a resource determining apparatus for a mobile communication terminal, and as shown in fig. 16, the resource determining apparatus includes:

In the above resource determination apparatus, the reference resource is a transmission resource in which a cell reference signal or a user reference signal is located.

The above resource determination apparatus, wherein the transmission resource is adjacent to the reference resource in time domain and/or frequency domain.

The above resource determination apparatus further includes:

a second indication receiving module, configured to receive a second resource allocation indication;

the area determining module is used for determining the area where the transmission resource is located according to the second resource allocation indication;

the third resource determining module is specifically configured to determine the transmission resource according to the actual position of the reference resource and the resource position relative relationship between the transmission resource and the reference resource in the region determined by the region determining module.

The above resource determination apparatus, wherein the location parameter is transmitted through a control channel of a subframe or a control channel of a current transmission time interval.

In the above embodiment, the network side at least partially notifies the mobile communication terminal in a display manner, and in the embodiment of the present invention, the indication and determination of the resource can also be completely realized in an implicit manner.

The embodiment of the invention also provides a resource determination method, which is used for a network side or a mobile communication terminal and comprises the following steps:

In this way, the following parameters are jointly stored on the network side and the terminal side:

1. the smallest constituent unit of the control channel (described in sCCE);

2. and a resource mapping rule with the control channel overhead as a variable.

Examples are as follows.

Assuming that the bandwidth of sTTI is 50RB, the smallest sCCE is defined for time division multiplexing schemes to consist of 36 REs consecutive in time domain and to define the relation between control channel overhead and bandwidth ratio, such as:

if the control channel overhead is less than or equal to A, 1/4 bandwidth;

if the control channel overhead is greater than or equal to A + Delta, 1/3 bandwidth;

if the control channel overhead is greater than or equal to A +2Delta, 1/2 bandwidth;

control channel overhead is greater than or equal to A +3Delta, then full bandwidth.

Assuming that the current control channel overhead is 16 CCEs, there are 600 REs per OS (assuming there is no CRS, there are only 400 REs in the case of CRS), and then the control channel overhead can be satisfied using 1OS full bandwidth. Both the base station and the UE determine that the control channel overhead is 1OFDM symbol and occupy the full bandwidth.

As another example, assuming that the sTTI has a bandwidth of 50 RBs and a time domain length of 7 OSs, the required number of sRB is determined according to the control channel overhead, and the RBs are continuously or uniformly distributed over the entire sTTI bandwidth, and the starting position can be related to the sTTI number or signaled. Also in the case of a control channel overhead of 16 scces (assuming that each sCCE consists of 36 REs), there are 84 REs per sRB (fewer when considering CRS, DMRS), and 16 × 36/84 is required to be 6.9, i.e., 7 sRB.

For another example, the bandwidth of sTTI is 50RB, the time domain length is 1 slot, i.e. 7 OSs; for the discrete time-frequency domain control channel resource, it is assumed that 1/2 of the sTTI time domain is taken, and the control channel resource is selected according to the control channel overhead and the mapping control channel resource pattern sequence around the CRS. In this case, the available REs in each of the srbs in different patterns are different, and for different overhead, the patterns that satisfy the requirement may be selected, and these RBs may be distributed uniformly in a continuous or discrete manner over the whole sTTI bandwidth. In some cases, multiple bandwidths may be satisfied, and certain rules need to be defined, such as ordering the choices when these patterns are satisfied simultaneously, or signaling which pattern to use.

A network side device according to a thirteenth embodiment of the present invention includes any of the above-described resource indicating apparatuses.

A mobile communication terminal according to a fourteenth embodiment of the present invention includes any of the above-described resource determining apparatuses.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

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

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A resource indication method is used for network side equipment, and is characterized in that the resource indication method comprises the following steps:

2. The method of claim 1, wherein the original transmission resource and the target transmission resource are distributed continuously in time domain.

3. The method of claim 2, wherein the reference set of transmission resources comprises X1 time-domain resource units in the time domain, wherein the actual set of transmission resources comprises X2 time-domain resource units in the time domain, wherein the original transmission resources are N1 consecutive frequency-domain resource units in the X1 time-domain resource units, wherein the target transmission resources are N2 consecutive frequency-domain resource units in the X2 time-domain resource units, and wherein N2 is a smallest positive integer greater than or equal to N1X 1/X2.

4. The method according to claim 3, wherein the reference transmission resource set comprises Y1 frequency-domain resource units in frequency domain, wherein the actual transmission resource set comprises Y2 frequency-domain resource units in frequency domain, wherein there are corresponding pairs of frequency-domain resource units from the N2 frequency-domain resource units and the N1 frequency-domain resource units, and wherein the sequence number of the frequency-domain resource units belonging to the target transmission resource in the pair of frequency-domain resource units in the Y2 frequency-domain resource units is: a1 × Y2/Y1, where a1 is the sequence number of the frequency-domain resource unit in the Y1 frequency-domain resource units for the frequency-domain resource unit belonging to the original transmission resource.

5. A resource determination method for a mobile communication terminal, the resource determination method comprising:

receiving a first resource allocation indication from a network side;

6. The method of claim 5, wherein the original transmission resource and the target transmission resource are distributed continuously in time domain.

7. The method of claim 6, wherein the reference set of transmission resources comprises X1 time-domain resource units in the time domain, wherein the actual set of transmission resources comprises X2 time-domain resource units in the time domain, wherein the original transmission resources are N1 consecutive frequency-domain resource units in the X1 time-domain resource units, wherein the target transmission resources are N2 consecutive frequency-domain resource units in the X2 time-domain resource units, and wherein N2 is a smallest positive integer greater than or equal to N1X 1/X2.

8. The resource determination method of claim 7, wherein the reference transmission resource set comprises Y1 frequency-domain resource units in frequency domain, wherein the actual transmission resource set comprises Y2 frequency-domain resource units in frequency domain, wherein there are corresponding pairs of the N2 frequency-domain resource units and the N1 frequency-domain resource units, and wherein the sequence number of the frequency-domain resource units belonging to the target transmission resource in the pair of frequency-domain resource units in the Y2 frequency-domain resource units is: a1 × Y2/Y1, where a1 is the sequence number of the frequency-domain resource unit in the Y1 frequency-domain resource units for the frequency-domain resource unit belonging to the original transmission resource.

9. A resource indication apparatus, configured to be used in a network side device, where the resource indication apparatus includes:

a first mapping module, configured to determine, according to a resource mapping rule between an actual transmission resource set used in current scheduling and a reference transmission resource set, a target transmission resource actually allocated to a downlink control channel in the actual transmission resource set;

10. The apparatus of claim 9, wherein the original transmission resource and the target transmission resource are distributed consecutively in time domain.

11. The apparatus of claim 10, wherein the reference set of transmission resources comprises X1 time-domain resource units in the time domain, wherein the actual set of transmission resources comprises X2 time-domain resource units in the time domain, wherein the original transmission resources are N1 consecutive frequency-domain resource units in the X1 time-domain resource units, wherein the target transmission resources are N2 consecutive frequency-domain resource units in the X2 time-domain resource units, and wherein N2 is a smallest positive integer greater than or equal to N1X 1/X2.

12. The resource indication apparatus of claim 11, wherein the reference transmission resource set comprises Y1 frequency-domain resource units in frequency domain, wherein the actual transmission resource set comprises Y2 frequency-domain resource units in frequency domain, wherein there are corresponding pairs of the N2 frequency-domain resource units and the N1 frequency-domain resource units, and wherein the sequence number of the pair of frequency-domain resource units belonging to the target transmission resource in the Y2 frequency-domain resource units is: a1 × Y2/Y1, where a1 is the sequence number of the frequency-domain resource unit in the Y1 frequency-domain resource units for the frequency-domain resource unit belonging to the original transmission resource.

13. A resource determination apparatus for a mobile communication terminal, the resource determination apparatus comprising:

and the second mapping module is used for determining a target transmission resource which corresponds to the original transmission resource in the actual transmission resource set and is actually allocated to the downlink control channel by the network side according to a resource mapping rule between the actual transmission resource set and the reference transmission resource set.

14. The apparatus of claim 13, wherein the original transmission resource and the target transmission resource are distributed consecutively in time domain.

15. The apparatus of claim 14, wherein the reference set of transmission resources comprises X1 time-domain resource units in the time domain, wherein the actual set of transmission resources comprises X2 time-domain resource units in the time domain, wherein the original transmission resources are N1 consecutive frequency-domain resource units in the X1 time-domain resource units, wherein the target transmission resources are N2 consecutive frequency-domain resource units in the X2 time-domain resource units, and wherein N2 is a smallest positive integer greater than or equal to N1X 1/X2.

16. The resource determination apparatus of claim 15, wherein the reference transmission resource set comprises Y1 frequency-domain resource units in frequency domain, wherein the actual transmission resource set comprises Y2 frequency-domain resource units in frequency domain, wherein there are corresponding pairs of frequency-domain resource units from the N2 frequency-domain resource units and the N1 frequency-domain resource units, and wherein the sequence number of the frequency-domain resource units belonging to the target transmission resource in the pair of frequency-domain resource units in the Y2 frequency-domain resource units is: a1 × Y2/Y1, where a1 is the sequence number of the frequency-domain resource unit in the Y1 frequency-domain resource units for the frequency-domain resource unit belonging to the original transmission resource.