TWI631864B - Resource scheduling method and device - Google Patents

Abstract

The present invention provides a resource scheduling method and device, wherein the resource scheduling method includes: receiving scheduling allocation information sent by a second mobile communication terminal, determining, according to the scheduling allocation information, that the second mobile communication terminal needs to be occupied and used for data transmission. a first time transmission resource, determining, by the first mobile communication terminal, a first received power or energy on each time-frequency transmission resource unit of the first time-frequency transmission resource, according to the first received power or energy The mobile communication terminal schedules a target time-frequency transmission resource for data transmission.

Description

Resource scheduling method and device

The invention belongs to the field of communication technologies, and in particular relates to a resource scheduling method and device.

In the direct communication between PCs based on the PC-5 interface in the LTE (Long Term Evolution) system, how to accurately obtain the energy or power of the data transmission occupied resources can effectively assist the resource allocation in the vehicle networking.

Currently, a method for obtaining the energy or power of the data transmission resource is: performing energy measurement by using SA (Scheduling Assignment) information associated with the data transmission resource, and identifying the result of the energy measurement as the corresponding data transmission resource. energy. The main benefit of this approach is simplicity. However, since the SA information transmission power may be different from the data data transmission power, and the size of the frequency domain resource occupied by the data transmission may be different at each transmission, the energy and resources of the identified data transmission occupy resources may be caused. The data transmission consumes a relatively large amount of energy, which affects the allocation of data transmission resources, resulting in inaccurate resource scheduling.

An object of the present invention is to provide a resource scheduling method and device, which solves the problem that the energy or power of the data transmission resource obtained according to the method in the related art is largely biased. Poor, causing inaccurate technical problems in resource scheduling.

In order to achieve the above object, the present invention provides a resource scheduling method for allocating transmission resources for a first mobile communication terminal, including: receiving scheduling allocation information sent by a second mobile communication terminal; and determining the second mobile according to the scheduling allocation information. The first time-frequency transmission resource that the communication terminal needs to occupy and use for data transmission; determining the first received power or energy of the first time-transmitted transmission resource unit of the first time-frequency transmission resource of the first mobile communication terminal; The first received power or energy is a target time-frequency transmission resource for the first mobile communication terminal to schedule data transmission.

In addition, the present invention provides a resource scheduling apparatus, configured to allocate a transmission resource to a first mobile communication terminal, including: a receiving module, configured to receive scheduling allocation information sent by a second mobile communication terminal; and a resource determining module, configured to The scheduling allocation information determines a first time-frequency transmission resource that the second mobile communication terminal needs to occupy and uses for data transmission; and a power or energy determining module, configured to determine, by the first mobile communication terminal, the first time-frequency transmission resource a first received power or energy on each of the time-frequency transmission resource units; and a scheduling module, configured to schedule, for the first mobile communication terminal, a target time-frequency transmission resource for data transmission according to the first received power or energy.

In addition, the present invention provides a resource scheduling device for allocating transmission resources to a first mobile communication terminal, including: a processor, a memory, and a transceiver, wherein: a processor is configured to read a program in the memory. Perform the following process: Receiving, by the second mobile communication terminal, scheduling allocation information, determining, according to the scheduling allocation information, a first time-frequency transmission resource that the second mobile communication terminal needs to occupy and used for data transmission; determining that the first mobile communication terminal is in the first time a first received power or energy on each time-frequency transmission resource unit of the frequency transmission resource; scheduling, by the first mobile communication terminal, a target time-frequency transmission resource for data transmission according to the first received power or energy, the transceiver Used to receive and send data, the processor is responsible for managing the bus structure and the usual processing, and the memory can store the data used by the processor when performing operations.

With the above technical solution of the present invention, the beneficial effects of the present invention are: the specific embodiment of the present invention uses time-frequency transmission for data transmission in terms of the manner of scheduling with the received power or energy of SA information in the related art. The received power or energy on the resource unit is used to schedule the second time-frequency transmission resource for data transmission, which can improve the accuracy of the energy occupied by the identified data transmission resource, reduce the deviation from the energy of the actual data transmission resource, and improve the resource. The accuracy of the scheduling.

Steps 51-54, 71-72, 81-82, 91-94, 101-102‧‧

11‧‧‧ receiving module

12‧‧‧Resource determination module

13‧‧‧Power or energy determination module

14‧‧‧Dispatching module

143‧‧‧Status determination submodule

144‧‧‧Schedule submodule

150‧‧‧Second bus

151‧‧‧second processor

21‧‧‧ Sixth time-frequency transmission resources

31‧‧‧ fifth time-frequency transmission resources

41‧‧‧Child frame

42‧‧‧First resource

43‧‧‧Second resources

131‧‧‧First acquisition sub-module

132‧‧‧First identified sub-module

133‧‧‧Detection submodule

134‧‧‧Second determination sub-module

141‧‧‧Select submodule

142‧‧‧Second acquisition sub-module

152‧‧‧second transceiver

153‧‧‧Second bus interface

154‧‧‧Second memory

155‧‧‧User interface

1400‧‧‧ first bus

1401‧‧‧First transceiver

1402‧‧‧Antenna

1403‧‧‧First bus interface

1404‧‧‧First processor

1405‧‧‧First memory

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments described in the present application. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work. The following figures are not deliberate The rendering is scaled to the actual size, with emphasis on the subject matter of the present application.

FIG. 1 is a schematic diagram showing selection of time-frequency transmission resources according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing the transmission of SA and associated data in different subframes according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing the SA and associated data transmitted in the same subframe according to an embodiment of the present invention.

FIG. 4 is a schematic diagram showing the SA indicating the current subframe and the next data transmission according to an embodiment of the present invention.

FIG. 5 is a flowchart of a resource scheduling method according to an embodiment of the present invention.

FIG. 6A is a schematic diagram of a user equipment (User Equipment, UE) automatically selecting resources according to an embodiment of the present invention.

FIG. 6B is a schematic diagram showing a base station assisted selection resource according to an embodiment of the present invention.

Figure 7 is a flow chart showing the power or energy determining step of an embodiment of the present invention.

Figure 8 shows a flow chart of another power or energy determination step in accordance with an embodiment of the present invention.

Figure 9 is a flow chart showing the scheduling steps of an embodiment of the present invention.

Figure 10 is a flow chart showing the state determination sub-steps of the embodiment of the present invention.

FIG. 11 is a schematic structural diagram of a resource scheduling device according to an embodiment of the present invention.

FIG. 12 is a schematic structural diagram of another resource scheduling device according to an embodiment of the present invention.

FIG. 13 is a schematic structural diagram of still another resource scheduling device according to an embodiment of the present invention.

Fig. 14 is a block diagram showing the structure of a base station according to an embodiment of the present invention.

FIG. 15 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are part of the present invention. Embodiments, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

First, referring to Figures 1 to 4, the nouns or symbols defined in the present invention will be described for subsequent understanding, as detailed below.

First mobile communication terminal: a user equipment UE that needs to perform resource scheduling information; for example, UE4 in FIG.

Second mobile communication terminal: user equipment that has completed resource scheduling; for example, UE1, UE2, and UE3 in FIG.

The first time-frequency transmission resource: a time-frequency transmission resource that has been allocated to the second mobile communication terminal for data transmission.

Time-frequency transmission resource unit: A unit that constitutes a time-frequency transmission resource, and may be a sub-band or a physical resource block (PRB).

Target time-frequency transmission resource: a time-frequency transmission resource allocated to the first mobile communication terminal for data transmission by resource scheduling.

The second time-frequency transmission resource: the time-frequency transmission resource carrying the scheduling allocation information sent by the second mobile communication terminal, for example, the sixth time-frequency transmission resource 21 where the scheduling allocation information of the second mode in FIG. 2 is located, or FIG. The first mode of scheduling distributes the fifth time-frequency transmission resource 31 where the information is distributed.

Target subframe: A subframe for resource scheduling for the first mobile communication terminal, for example, a subframe indicated by a broken line frame in FIG. 1, the number of which may be one or two, or even more.

The third time-frequency transmission resource: a time-frequency transmission resource carrying each scheduling allocation information corresponding to the target subframe.

The fourth time-frequency transmission resource: the time-frequency transmission resource indicated by the scheduling allocation information carried by the third time-frequency transmission resource.

The fifth time-frequency transmission resource: a time-frequency transmission resource that carries the scheduling information of the first mode.

The sixth time-frequency transmission resource: the time-frequency transmission resource where the scheduling allocation information of the second mode is carried.

It should be noted that these defined terms do not limit the scope of protection of the present invention, and may be appropriately adjusted according to actual conditions.

Here, it is pre-specified that when the received power or energy is juxtaposed with other objects, it indicates that one of the received power or energy is juxtaposed with other objects, such as resource selection according to the received power or energy and the preset policy. The meaning is: resource selection according to receiving power and preset policy; or resource selection according to energy and preset policy.

Referring to FIG. 5, an embodiment of the present invention provides a resource scheduling method, which is used to allocate a transmission resource to a first mobile communication terminal, and includes the following steps: Step 51: Receive scheduling allocation information sent by a second mobile communication terminal; Step 52 Determining, according to the scheduling allocation information, a first time-frequency transmission resource that the second mobile communication terminal needs to occupy and use for data transmission; Step 53: determining, by the first mobile communication terminal, each time-frequency transmission of the first time-frequency transmission resource The first received power or energy on the resource unit; Step 54: Schedule a target time-frequency transmission resource for data transmission for the first mobile communication terminal according to the first received power or energy.

The specific embodiment of the present invention uses the received power or energy on the time-frequency transmission resource unit for data transmission, in terms of the manner in which the scheduling power is transmitted by the received power or energy of the SA (Scheduling Assignment) information. To schedule the second time-frequency transmission resource for data transmission, the accuracy of the energy occupied by the data transmission of the identifier can be improved, the deviation from the energy of the actual data transmission resource is reduced, and the accuracy of the resource scheduling is improved.

The time-frequency transmission resource unit is a sub-band or a physical resource block (PRB), and the received power or energy on each time-frequency transmission resource unit is determined.

At present, in the LTE-based V2V (Vehicle to Vehicle) technology, it is determined to adopt an LTE D2D (Device to Device)-based improvement method, in which the scheduling information (SA) information of the control information is The data information is transmitted through different channels. The receiving end detects the SA information carried in the control channel, and then receives the data information according to the information carried in the SA information. When performing resource selection, there are two ways, one is for the user equipment UE to perform spontaneously, and the other is for the base station to assist.

Correspondingly, as shown in FIG. 6A and FIG. 6B, in the embodiment of the present invention, the resource scheduling method may be performed by a first mobile communication terminal, and the first mobile communication terminal spontaneously allocates a transmission resource to itself according to the collected information. The resource scheduling method can also be performed by the E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, UMTS (Universal Mobile Telecommunications System)) The wireless access network performs execution, and the base station allocates transmission resources to the first mobile communication terminal by using the collected information, and delivers the distribution result to the first mobile communication terminal.

Specifically, when the resource scheduling method is performed by the base station, after the base station schedules the target time-frequency transmission resource, the authorization information (such as V2Vgrant information) including the location information of the target time-frequency transmission resource is sent to the And a first mobile communication terminal, so that the first mobile communication terminal completes selection of a transmission resource, and performs data transmission.

In the embodiment of the present invention, when the received power or energy of the data transmission occupied resource is obtained by the measurement result of the received power or the energy of the SA, as shown in FIG. 7, the step 53 specifically includes: Step 71, acquiring the first mobile The second received power or energy on the second time-frequency transmission resource carrying the scheduling allocation information; and step 72, determining the first received power or energy according to the second received power or energy; wherein the first receiving The power or energy is the product of the second received power or energy and A1/K1, where the A1 is the first transmit power or energy when the second mobile communication terminal transmits the data and the second transmit power or energy that sends the scheduling allocation information. The ratio of K1 is the number of time-frequency transmission resource units included in the first time-frequency transmission resource.

Hereinafter, the above power or energy determining step will be described in detail by way of specific examples. Among them, the following examples are all described by taking power determination as an example, but the same applies to energy determination.

In some examples, referring to FIG. 2, when the transmission of SA and Data is located in different subframes, the first mobile communication terminal UE0 transmits the data when receiving the SA information sent by the other mobile communication terminal UE'. Has not happened yet, so only through the receiving work of the SA The measurement result is used to identify the received power of the time-frequency transmission resource occupied by the subsequent data transmission. At the same time, in the case that the SA is successfully received, the number of PRBs occupied by the associated data transmission can be obtained from the SA information.

It is assumed that the transmission of the SA occupies N PRBs, and the associated data transmission occupies K sub-bands (time-frequency transmission resource units), each sub-band contains M PRBs, and the result of the power measurement of the UE's received UE's SA is P_sa ( The second received power), the power of the time-frequency transmission resource occupied by the corresponding data transmission (the granularity of the M PRBs (ie, sub-bands) is P_data_subband (first received power).

Case 1: SA transmission and data transmission are allocated the same power

In this case, for example, both the SA transmission and the data transmission are transmitted with the full power of the UE', that is, A1=1, K1=K. Then, it can be obtained that the total power received by UE0 on the resources occupied by the data transmission is P_data=P_sa, and the power received on each sub-band is P_data_subband=P_data/K=P_sa/K, ie: P_data_subband=P_sa * A1/K1.

Case 2: The power transmitted between the SA transmission and the associated data transmission is not the same.

The second case is, for example, that the ratio between the SA transmission power and the data transmission power is a: 1, that is, A1=1/a, and K1=K. Then, it can be obtained that the total power received by UE0 on the resources occupied by the data transmission is P_data=P_sa/a, and the power received on each sub-band is P_data_subband=P_data/K=P_sa/(a*K) , ie P_data_subband=P_sa* A1/K1.

In this case, the SA transmit power and the data transmit work need to be signaled. The deviation between the rates, and the signal can be carried by the SA or by the higher layer signal.

In some examples, referring to FIG. 3, the transmission of the SA and the data is located in the same subframe, and the received power on the time-frequency transmission resource occupied by the data transmission can be obtained by the power measurement result of the received SA.

It is assumed that the transmission of the SA occupies N PRBs, and the associated data transmission occupies K sub-bands, each sub-band contains M PRBs, and the result of the power measurement of the SA of the UE's receiving the UE' is P_sa (second received power), The received power of the corresponding data transmission occupying resources (in the case of M PRBs (ie, sub-bands) is P_data_subband (first received power)).

Case 1: SA transmission and data transmission adopt the method of power allocation according to PRB

In this case, the ratio between the SA transmit power and the data transmit power is N/(M*K), that is, A1=(M*K)/N, K1=K, and the processing procedure is as follows: calculate each PRB. The received power of the SA is P_sa_rb=P_sa/N; in the time-frequency transmission resource for calculating the transmission data, the received power on each sub-band is as follows: P_data_subband=P_sa_rb*M=P_sa*M/N.

That is: P_data_subband=P_sa* A1/K1.

Case 2: The transmission power of SA transmission and associated data transmission is different

Assuming that the ratio of the transmission power on the PRB for SA transmission to the transmission power on the PRB for data transmission is a:1, the ratio of the SA transmission power to the data transmission power is: (a* N)/(M* K), then: A1=(M*K)/(a* N)

K1=K.

Therefore, it can be obtained that the received power P_sa_rb on the PRB transmitting the SA is P_sa/N, and the received power P_data_rb on the PRB of the transmitted data is P_sa_rb/a, and the received power P_data_subband in the sub-band of the transmitted data is P_data_rb *M= P_sa*M/(N* a), ie: P_data_subband=P_sa* A1/K1.

In this case, it is necessary to signal the deviation between the transmission power on the PRB transmitting the SA and the transmission power on the PRB of the transmission data, and the signal can be carried by the SA or by the higher layer signal.

In the embodiment of the present invention, when the first time-frequency transmission resource and the second time-frequency transmission resource that carries the scheduling allocation information are in the same subframe, the received power or energy of the data transmission occupied resource may be directly obtained, specifically As shown in FIG. 8, the step 53 specifically includes: Step 81: detecting a third received power or energy of the first mobile communication terminal on the first time-frequency transmission resource; Step 82, according to the third received power or The energy determines the first received power or energy; wherein the first received power or energy is a third received power/K1, where the K1 is the number of time-frequency transmission resource units included in the first time-frequency transmission resource.

For example, as shown in Figure 3, the transmission of SA and data is in the same subframe. It is assumed that the transmission of the SA occupies N PRBs, and the associated data transmission occupies K sub-bands, each sub-band contains M PRBs, and the total received power of the terminal on the resources occupied by the data transmission is P_data (third received power). Received power on the PRB of the transmitted data P_data_rb is: P_data/(K*M).

Therefore, the received power P_data_subband of the transmission data on the sub-band is: P_data_rb*M=P_data/K, that is, P_data_subband=P_data/K1.

Specifically, as shown in FIG. 4, the SA transmission and the data transmission are located in the same subframe, but the SA includes both the resource indication of the current data transmission and the resource indication of the next transmission, where the same identification area data transmission indicates It is the initial transmission and retransmission of the same material. The UE0 always needs to obtain the power of the next data transmission indicated in the current SA information according to the measurement of the current subframe, for example, in the subframe 41 indicated by the dotted frame shown in FIG. The number of sub-bands in the first resource 42 occupied by the data transmission in the current subframe is different from the number of sub-bands in the second resource 43 occupied by the next data transmission, and therefore needs to be based on the current sub-information. The received power P_data_subband_1 of the transmission data on the sub-band is measured to determine the received power P_data_subband_2 of the next transmission data on the sub-band. If the number of subbands occupied by the data transmission in the current subframe is K1, and the number of subbands occupied by the next data transmission is K2, then P_data_subband_2=P_data_subband_1*K1/K2.

In the embodiment of the present invention, as shown in FIG. 9, the step 54 specifically includes: Step 91, according to the first received power of the first mobile communication terminal in each time-frequency transmission resource unit of the first time-frequency transmission resource. And selecting a target subframe by using the energy and the predetermined policy; and obtaining a third received power or energy on the third time-frequency transmission resource of the first mobile communication terminal that carries the scheduling allocation information corresponding to the target subframe; Step 93: Determine, according to the third received power or energy, whether each time-frequency transmission resource unit in the target subframe is available; Step 94: Schedule the target time-frequency transmission resource according to information about whether each time-frequency transmission resource unit in the target subframe is available.

In the manner in which the UE autonomously selects a resource, the UE needs to perceive the occupancy of the resource, thereby performing resource selection. Generally, there are two ways: one is to learn the data transmission of other UEs according to the received SA information of other UEs. The resource indication is occupied, so that the transmitted resource is selected among the unoccupied transmission resources; the other is to perform power detection directly on the data transmission resource. If the power is higher than a certain threshold, the corresponding transmission resource is considered to be occupied. On this basis, the unoccupied transmission resources are selected for data transmission. In the first mode, if the data transmission and the transmission of the associated SA are in the same subframe, the UE needs to determine whether the resource is occupied in the subsequent period according to the current perception, and therefore needs to know the time or period of the data transmission continuously occupied. In order to determine the occupancy of transmission resources in a future period of time, for the energy detection based on transmission resources, it is also necessary to know the time or period of continuous use of data transmission, thereby determining the occupancy of transmission resources in a future period of time.

Briefly, as shown in FIG. 1 , the UE needs to construct a resource occupancy of a certain number of subframes in the future according to the energy detection or the detection of the SA and the time or period during which the data transmission continues to occupy resources, thereby selecting idle resources. transmission. In Figure 1, the UE1, UE2, and UE3 transmission resource occupancy is identified. If the UE4 needs to perform data transmission, the UE may select resources in the idle resources. Alternatively, the SA detection or the energy detection may be used to know which sub-frame has small interference (that is, the sum of the received power or energy in the sub-frame is small), and select one or more interferences according to a predetermined strategy. Small target subframes. The predetermined policy is, for example, selecting two, three or four target subframes. For example, in FIG. 1, UE4 can select the first sub-frame and the last sub-frame (the sub-frames enclosed by the dotted line). Transfer transmission resources.

After determining the energy distribution, how to select the target sub-frame can be performed in various ways, such as selecting the power and the smallest sub-frame, or selecting multiple sub-frames according to the power and the order from small to large, and selecting the sub-frames. The number can be determined in advance, or can be determined according to the power and the number of subframes exceeding a predetermined threshold, which are not described herein.

In the embodiment of the present invention, when the third time-frequency transmission resource and the fourth time-frequency transmission resource indicated by the scheduling and allocation information carried by the third time-frequency transmission resource are in the same subframe, the third received power or energy a ratio of the fourth received power or energy to the A2; wherein: the fourth received power or energy is the received power or energy of the first mobile communication terminal on the fourth time-frequency transmission resource; the A2 is the second a ratio of a transmission power or energy of the fourth time-frequency transmission resource of the mobile communication terminal to a transmission power or energy of the second mobile communication terminal on the third time-frequency transmission resource.

In the above manner, obtaining the received power of the SA by the received power detection result of the data can obtain a more accurate SA received power result for the following reasons.

Relatively speaking, the resources occupied by the data are much larger than the resources occupied by the SA. Therefore, the receiving power of the data at the receiving end is more accurate or the error is smaller, and the SA receiving power calculated by using the detection result with smaller error is calculated. Will be more accurate.

In the related art, in the resource configuration, the terminal may determine, according to the energy or power received by the SA, whether the currently indicated transmission resource indicated by the SA belongs to a transmission resource that needs to be effectively circumvented. For example, the power threshold of the SA is set. If the power of the received SA is higher than the power threshold, the transmission resource indicated by the received SA is considered to be a transmission resource that needs to be circumvented. Otherwise, the transmission resource indicated by the received SA is considered to be idle.

The above mechanism can effectively improve the efficiency of resource allocation when the load is relatively high. However, since the SA and the data transmission may be in the same subframe, it may be located in different subframes, and in the case where the SA and the data transmission are in the same subframe, the size of the frequency domain resource occupied by the data transmission changes. There are also various channel fading effects, etc., which affect the receiving energy of the SA, resulting in the use of a uniform threshold for correct discrimination.

An example of this is as follows.

When SA and data are transmitted in different subframes, SA can monopolize all transmit power. When SA and data are transmitted in the same subframe, SA needs to share transmit power with data. In both cases, according to SA It is obviously unreasonable to use the same threshold to judge whether the received power is used for resources. Therefore, in the embodiment of the present invention, the SA information corresponding to the target subframe is divided, for example, the SA information (corresponding to the same subframe) in the first mode and the SA information in the second mode (the corresponding information is not in the same Sub-frame condition), and unified energy normalization of SA (consider different situations to a unified standard) to reduce the SA information corresponding to the target sub-frame due to mode differences Receive power or energy differences.

Specifically, in the embodiment of the present invention, the scheduling allocation information corresponding to the target subframe includes: scheduling allocation information of the first mode, where the fifth time-frequency transmission resource and the indicated time-frequency transmission resource are in the same subframe. And the scheduling and allocation information of the second mode, where the sixth time-frequency transmission resource and the indicated time-frequency transmission resource are not in the same subframe.

Correspondingly, as shown in FIG. 10, the step 93 includes: Step 101: Calculate a fifth received power or a seventh power or energy corresponding to the energy of the scheduling information of the first mode in the same intermediate scenario, and a second mode. The eighth received power or energy corresponding to the eighth power or energy of the scheduling information; in other words, in the specific embodiment of the present invention, in the step 101, the first mobile communication terminal is on the fifth time-frequency transmission resource Converting the fifth received power or energy and the sixth received power or energy on the sixth time-frequency transmission resource to obtain the converted received power or energy, and reducing the scheduling allocation information corresponding to the target subframe The difference in received power or energy due to the mode difference; Step 102: Determine whether each time-frequency transmission resource unit in the target subframe is available by using the converted seventh received power or energy and the eighth received power or energy.

Specifically, the received power or energy obtained by converting the fifth received power or energy is: fifth received power or energy *N/(N+M); received power obtained by converting the sixth received power or energy Or energy is: (1+A3)* sixth received power or energy *N/(N+M); or (1+1/A3)* seventh received power or energy *N/(N+M); The N is the preset number of time-frequency transmission resource units occupied by the scheduling allocation information, where M is the number of time-frequency transmission resource units occupied by the preset data transmission, and A3 is the transmission power of the data transmitted by the second mobile communication terminal. Or a ratio of the energy to the transmission power or energy of the scheduling allocation information of the second mode, where the seventh received power or energy is a time-frequency transmission resource indicated by the scheduling allocation information of the second mode by the first mobile communication terminal. Receive power or energy on.

In this way, the threshold is determined by using the normalized result of the received energy of the SA. If the threshold is higher than the SA, the resource indicated by the current SA information is continuously occupied in a subsequent period or according to a certain period. Otherwise, the data is transmitted. Resources are considered idle and can effectively improve the performance of resource allocation.

Next, the energy normalization process of the SA will be described by way of a specific example.

Here, the SA power normalization reference is: SA occupies N PRBs, and data transmission occupies one sub-band (M PRBs, that is, the number of time-frequency transmission resource units occupied by preset data transmission), SA and data The transmission is based on power allocation such as PRB.

In some examples, the SA and associated data are located in different subframes, and the SA and the data are assumed to be transmitted by equal power. The normalized processing may be performed by dispersing the total power received by the SA according to the number of PRBs and the like. The occupied N powers of the N PRBs and the M PRBs (one sub-band) occupied by the data transmission are then calculated, and the SA power after the normalization is: P_sa*N/(N+M) .

In some examples, the SA and the associated data are located in the same subframe, the SA occupies N PRBs, the data transmission occupies K subbands, each subband contains M PRBs, and the SA and data transmission are assumed to be allocated according to power such as PRB, ie, A3 =(K*M)/N, the normalized processing can be divided into a normalization process based on the SA power measurement result P_sa or a normalization process based on the P_data_subband.

The specific process is described in detail below.

The normalization process based on the SA energy measurement P_sa includes the following steps: calculating, according to P_sa, the received power P_sa_rb on the PRB transmitting the SA as: P_sa/N; The transmit power on the PRB of the transmitted data is the same as the transmit power on the PRB of the transport SA. Therefore, the received power P_data_rb on the PRB transmitting the SA is the same as the received power P_data_rb on the PRB of the transmitted data, that is, P_sa_rb is equal to P_data_rb; The total received power of the current subframe SA and data is P_sa_rb*(N+K*M)=(1+A3)*P_sa; the result of the normalized SA received power is: (1+A3)*P_sa* N/(N+M).

The normalization process based on P_data_subband includes the following steps: calculating the received power P_data_rb of the transmission data on the PRB according to the received power P_data_subband of the transmission data on the sub-band: P_data_subband/M; the transmission power on the PRB of the transmitted data The transmission power on the PRB transmitting the SA is the same, so the received power P_data_rb on the PRB transmitting the SA is the same as the received power P_data_rb on the PRB of the transmission data, that is, P_sa_rb is equal to P_data_rb; the total subframe SA and the total data of the data The received power is P_data_rb*(N+K*M)=(1+A3)*P_sa; the result of the normalized SA received power is: (1+A3)*P_sa*N/(N+M).

In some examples, the SA and the associated data are located in the same subframe, the SA occupies N PRBs, and the data transmission occupies K subbands, and the transmit power on the PRB for SA transmission and the transmit power on the PRB used for data transmission The ratio is a:1, and the normalization process based on P_data_subband includes the following steps: calculating the received power P_data_rb of the transmission data on the PRB according to the received power P_data_subband of the transmission data on the sub-band: P_data_subband/M; The ratio of the transmit power on the PRB for SA transmission to the transmit power on the PRB for data transmission is a:1, so the received power P_sa_rb on the PRB transmitting the SA is equal to a*P_data_rb; in the current subframe SA The total received power of the data and the data is P_data_rb*K*M+P_sa_rb*N=(1+A3)*P_sa; the result of the normalized SA received power is: (1+1/A3)*P_data*N/(N +M).

The normalization process based on the SA power measurement result P_sa is basically the same, and the description is not repeated here.

In the embodiment of the present invention, according to the analysis of the target subframe, the received power or energy (which may be the original received power or energy) of the scheduling allocation information corresponding to the time-frequency transmission resource unit in the target subframe is also When the converted received power or energy is greater than or equal to the predetermined threshold, the time-frequency transmission resource unit is unavailable, otherwise the time-frequency transmission resource unit is available.

The predetermined threshold may be determined according to actual conditions, and the present invention does not limit the same.

As shown in FIG. 11 , an embodiment of the present invention further provides a resource scheduling device, configured to allocate a transmission resource to a first mobile communication terminal, where the device includes: a receiving module 11 configured to receive a scheduling allocation sent by a second mobile communication terminal. The information determining module 12 is configured to determine, according to the scheduling allocation information, a first time-frequency transmission resource that the second mobile communication terminal needs to occupy and use for data transmission; and a power or energy determining module 13 configured to determine the first Transmitting, by the mobile communication terminal, the first received power or energy on each of the time-frequency transmission resource units of the first time-frequency transmission resource; The scheduling module 14 is configured to schedule, for the first mobile communication terminal, a target time-frequency transmission resource for data transmission according to the first received power or energy.

The embodiment of the present invention schedules data transmission for data transmission by using received power or energy on a time-frequency transmission resource unit for data transmission, relative to a related art method of scheduling with SA information received power or energy. The second time-frequency transmission resource can improve the accuracy of the energy occupied by the data transmission of the identifier, reduce the deviation of the energy occupied by the actual data transmission, and improve the accuracy of the resource scheduling.

The resource scheduling device may be configured in the first mobile communication terminal or the base station.

As shown in FIG. 12, in the embodiment of the present invention, the power or energy determining module 13 may include: a first acquiring sub-module 131, configured to acquire, when the first mobile communication terminal carries the second scheduling information, a second received power or energy on the frequency transmission resource; the first determining submodule 132, configured to determine the first received power or energy according to the second received power or energy; wherein the first received power or energy is the a product of a second received power or energy and A1/K1, where A1 is a ratio of a first transmit power or energy when the second mobile communication terminal transmits data to a second transmit power or energy that transmits the scheduled allocation information; The number of time-frequency transmission resource units included in the first time-frequency transmission resource.

Referring to FIG. 12, in the embodiment of the present invention, when the first time-frequency transmission resource and the second time-frequency transmission resource carrying the scheduling allocation information are in the same subframe, the power or energy determining module 13 may include : a detecting submodule 133, configured to detect a third received power or energy of the first mobile communication terminal on the first time-frequency transmission resource; and a second determining sub-module 134, configured to use the third received power or energy Determining the first received power or energy; wherein the first received power or energy is a third received power/K1, where the K1 is the number of time-frequency transmission resource units included in the first time-frequency transmission resource.

As shown in FIG. 13 , in the embodiment of the present invention, the scheduling module 14 may include: a selecting sub-module 141, configured to transmit resources according to the first time-frequency transmission resource of the first mobile communication terminal according to the first mobile communication terminal. The first received power or energy in the unit and the predetermined policy selection target subframe; the second obtaining submodule 142 is configured to acquire the first mobile communication terminal that carries the scheduling allocation information corresponding to the target subframe a third received power or energy on the third time frequency transmission resource; the state determining submodule 143, configured to determine, according to the third received power or energy, whether each time-frequency transmission resource unit in the target subframe is available; scheduling the submodule The group 144 is configured to schedule the target time-frequency transmission resource according to information about whether each time-frequency transmission resource unit in the target subframe is available.

Specifically, when the third time-frequency transmission resource and the fourth time-frequency transmission resource indicated by the scheduling information of the third time-frequency transmission resource are in the same subframe, the third received power or energy is: a ratio of received power or energy to A2; wherein the fourth received power or energy is the fourth time-frequency transmission of the first mobile communication terminal Receive power or energy on the resource, where A2 is the transmit power or energy of the second time-frequency transmission resource of the second mobile communication terminal and the transmit power of the second mobile communication terminal on the third time-frequency transmission resource Or the ratio of energy.

Specifically, the scheduling allocation information corresponding to the target subframe includes: scheduling allocation information of the first mode, where the fifth time-frequency transmission resource and the indicated time-frequency transmission resource are not in the same subframe; and the second mode Scheduling allocation information, where the sixth time-frequency transmission resource and the indicated time-frequency transmission resource are in the same sub-frame; and the state determination sub-module includes: a conversion sub-module for calculating the same intermediate scene, The fifth received power or the seventh power or energy corresponding to the energy of the scheduling allocation information of the mode, and the eighth received power or the eighth power or energy corresponding to the energy of the scheduling information of the first mode; the third determining submodule And determining, by using the conversion to obtain the seventh received power or energy and the eighth received power or energy, whether each time-frequency transmission resource unit in the target subframe is available.

In the embodiment of the present invention, the seventh received power or energy corresponding to the fifth received power or energy is: the fifth received power or energy *N/(N+M); the sixth received power or the eighth received power corresponding to the energy or The energy is: (1+A3)*the sixth received power or energy*N/(N+A3*M); or (1+1/A3)*the seventh received power or energy*N/(N+M); In the intermediate scenario, the number of time-frequency transmission resource units occupied by the scheduling allocation information is the N, and the number of time-frequency transmission resource units occupied by the data transmission is the M, and the time-frequency transmission resource The transmission power of the source unit is the same, and the A3 is a ratio of the transmission power or energy of the data transmitted by the second mobile communication terminal to the transmission power or energy of the scheduling allocation information of the second mode, where the seventh received power or energy is The first mobile communication terminal receives the received power or energy on the time-frequency transmission resource indicated by the scheduling information of the second mode.

In the embodiment of the present invention, the received power or energy (which may be the original received power or energy, or the converted received power or energy) of the scheduling allocation information corresponding to the time-frequency transmission resource unit in the target subframe. When the threshold is greater than or equal to the predetermined threshold, the time-frequency transmission resource unit is unavailable, otherwise the time-frequency transmission resource unit is available.

As shown in FIG. 14, an embodiment of the present invention further provides a base station for allocating transmission resources for a first mobile communication terminal, where the base station includes a first bus 1400, a first transceiver 1401, an antenna 1402, and a first convergence. The interface 1403, the first processor 1404, and the first memory 1405.

The first processor 1404 is configured to read a program in the first memory 1405, and perform the following process: receiving, receiving, by the first transceiver 1401, scheduling allocation information sent by the second mobile communication terminal; and a resource determining step, Determining, according to the scheduling allocation information, a first time-frequency transmission resource that the second mobile communication terminal needs to occupy and used for data transmission; and a power or energy determining step of determining, by the first mobile communication terminal, each of the first time-frequency transmission resources Transmitting a first received power or energy on a resource unit; and scheduling a step of scheduling, by the first mobile communication terminal, a target time-frequency transmission resource for data transmission according to the first received power or energy; In the sending step, the authorization information including the location information of the target time-frequency transmission resource is sent to the first mobile communication terminal through the antenna 1402.

The first transceiver 1401 is configured to receive and send data under the control of the first processor 1404.

In FIG. 14, a busbar architecture (represented by a first busbar 1400), the first busbar 1400 can include any number of interconnected busbars and bridges, and the first busbar 1400 would be comprised by the first processor 1404. The representative one or more processors are coupled to various circuits of the memory represented by the first memory 1405. The first bus 1400 can also couple various other circuits such as peripherals, voltage regulators, and power management circuits. The first busbar interface 1403 provides an interface between the first busbar 1400 and the first transceiver 1401. The first transceiver 1401 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium. The data processed by the first processor 1404 is transmitted over the wireless medium via the antenna 1402. Further, the antenna 1402 also receives the data and transmits the data to the first processor 1404.

The first processor 1404 is responsible for managing the first bus 1400 and the usual processing, and can also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. The first memory 1405 can be used to store the data used by the first processor 1404 in performing the operations.

Optionally, the first processor 1404 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or CPLD (Complex Programmable Logic Device) Device).

As shown in FIG. 15, the embodiment of the present invention further provides a user equipment, which is configured to allocate transmission resources for itself. The first mobile communication terminal includes a second bus bar 150, a second processor 151, and a second transceiver 152. The second bus interface 153, the second memory 154, and the user interface 155.

The user equipment is, for example, a first mobile communication terminal.

The second processor 151 is configured to read a program in the second memory 154, and perform the following process: receiving, receiving, by the second transceiver 152, scheduling allocation information sent by the second mobile communication terminal; and a resource determining step, according to the Scheduling allocation information to determine a first time-frequency transmission resource that the second mobile communication terminal needs to occupy and use for data transmission; and a power or energy determining step of determining each time-frequency of the first time-frequency transmission resource of the first mobile communication terminal Transmitting a first received power or energy on the resource unit; and scheduling a step of scheduling, by the first mobile communication terminal, a target time-frequency transmission resource for data transmission according to the first received power or energy.

The second transceiver 152 is configured to receive and send data under the control of the second processor 151.

In Figure 15, a busbar architecture (represented by a second busbar 150), the second busbar 150 can include any number of interconnected busbars and bridges, and the second busbar 150 will include a general purpose second processor. One or more processors represented by 151 are coupled to various circuits of the memory represented by the second memory 154. The second bus bar 150 can also be used, such as peripheral equipment, stable Various other circuits such as a voltage regulator and a power management circuit are connected. The second busbar interface 153 provides an interface between the second busbar 150 and the second transceiver 152. The second transceiver 152 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium. For example, the second transceiver 152 receives external data from other devices. The second transceiver 152 is configured to send the processed data of the second processor 151 to other devices. Depending on the nature of the computing system, a user interface 155 can also be provided, such as a keypad, display, speaker, microphone, joystick.

The second processor 151 is responsible for managing the second bus bar 150 and the usual processing, as described above for running the general operating system. The second memory 154 can be used to store data used by the second processor 151 when performing operations.

Optionally, the second processor 151 can be a CPU, an ASIC, an FPGA, or a CPLD.

The above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is considered as the scope of protection of the present invention.

Claims (16)

A resource scheduling method, configured to allocate a transmission resource to a first mobile communication terminal, the method comprising: receiving scheduling allocation information sent by a second mobile communication terminal; determining, according to the scheduling allocation information, that the second mobile communication terminal needs to be occupied and used for data Transmitting a first time-frequency transmission resource; determining, by the first mobile communication terminal, a first received power or energy on each time-frequency transmission resource unit of the first time-frequency transmission resource; according to the first received power or energy The first mobile communication terminal schedules a target time-frequency transmission resource for data transmission, including: determining, according to the first received power or energy, whether each time-frequency transmission resource unit in the target subframe is available, wherein the target is When the received power or energy of the scheduling allocation information corresponding to the time-frequency transmission resource unit in the frame is greater than or equal to a predetermined threshold, the time-frequency transmission resource unit is unavailable, otherwise the time-frequency transmission resource unit is available. The resource scheduling method of claim 1, wherein the determining, by the first mobile communication terminal, the first received power or energy on each time-frequency transmission resource unit of the first time-frequency transmission resource comprises: acquiring the a second received power or energy of the first mobile communication terminal on the second time-frequency transmission resource carrying the scheduling allocation information; determining the first received power or energy according to the second received power or energy; wherein the first receiving Power or energy for the second received power or energy and A1/K1 a product of the ratio of the first transmit power or energy when the second mobile communication terminal transmits the data to the second transmit power or energy that sends the scheduling allocation information; the K1 is included in the first time-frequency transmission resource The number of time-frequency transmission resource units. The resource scheduling method of claim 1, wherein when the first time-frequency transmission resource and the second time-frequency transmission resource carrying the scheduling allocation information are in the same subframe, determining that the first mobile communication terminal is The first received power or energy on each time-frequency transmission resource unit of the first time-frequency transmission resource specifically includes: detecting a third received power or energy of the first mobile communication terminal on the first time-frequency transmission resource; Determining the first received power or energy according to the third received power or energy; wherein the first received power or energy is a third received power/K1, where the K1 is a time-frequency transmission included in the first time-frequency transmission resource The number of resource units. The resource scheduling method according to any one of claims 1 to 3, wherein the scheduling, by the first mobile communication terminal, the target time-frequency transmission resource for data transmission according to the first received power or energy comprises: Receiving, by the first mobile communication terminal, the first received power or energy on the time-frequency transmission resource unit and the predetermined policy selection target subframe in the first time-frequency transmission resource; acquiring the first mobile communication terminal to carry the target The third received power or energy on the third time-frequency transmission resource of the scheduling allocation information corresponding to the subframe; determining whether each time-frequency transmission resource unit in the target subframe is available according to the third received power or energy; The target time-frequency transmission resource is scheduled according to whether information of each time-frequency transmission resource unit in the target subframe is available. The resource scheduling method according to claim 4, wherein when the third time-frequency transmission resource and the fourth time-frequency transmission resource indicated by the scheduling allocation information carried by the third time-frequency transmission resource are in the same subframe, The third received power or energy is: a fourth received power or a ratio of energy to A2; wherein the fourth received power or energy is a received power or energy of the first mobile communication terminal on the fourth time-frequency transmission resource The A2 is a ratio of the transmission power or energy of the fourth time-frequency transmission resource of the second mobile communication terminal to the transmission power or energy of the second mobile communication terminal on the third time-frequency transmission resource. The resource scheduling method of claim 4, wherein the scheduling allocation information corresponding to the target subframe includes: scheduling allocation information of the first mode, where the fifth time-frequency transmission resource and the indicated time-frequency transmission resource are located. Not in the same subframe; and the second mode scheduling allocation information, where the sixth time-frequency transmission resource and the indicated time-frequency transmission resource are in the same subframe; the target subframe is determined according to the third received power or energy Whether the time-frequency transmission resource unit is available in the frame includes: calculating the fifth received power or the seventh power or energy corresponding to the energy of the scheduling information of the first mode in the same intermediate scenario, and the scheduling and allocation information of the second mode. The sixth received power or energy corresponding to the eighth power or energy; Whether the time-frequency transmission resource unit of each target subframe is available is determined by using the converted seventh received power or energy and the eighth received power or energy. The resource scheduling method according to claim 6, wherein the seventh received power or energy corresponding to the fifth received power or energy is: fifth received power or energy *N/(N+M); sixth received power or energy The corresponding eighth received power or energy is: (1+A3)*the sixth received power or energy*N/(N+M); or (1+1/A3)*the seventh received power or energy*N/( N+M); wherein, in the intermediate scenario, the number of time-frequency transmission resource units occupied by the scheduling allocation information is the N, and the number of time-frequency transmission resource units occupied by the data transmission is the M, and the time-frequency transmission resource unit The transmission power is the same, and the A3 is a ratio of the transmission power or energy of the data transmitted by the second mobile communication terminal to the transmission power or energy of the scheduling allocation information of the second mode, where the seventh received power or energy is the first The received power or energy of the time-frequency transmission resource indicated by the mobile communication terminal in the scheduling mode of the second mode. The resource scheduling method according to claim 1, wherein the resource scheduling method is performed by a first mobile communication terminal or a base station. A resource scheduling device, configured to allocate a transmission resource to a first mobile communication terminal, comprising: a processor, a memory, and a transceiver, wherein: the processor is configured to read a program in the memory, and perform the following process: receiving the second a scheduling allocation information sent by the mobile communication terminal; determining, according to the scheduling allocation information, that the second mobile communication terminal needs to be occupied and used a first time-frequency transmission resource for data transmission; determining, by the first mobile communication terminal, a first received power or energy on each time-frequency transmission resource unit of the first time-frequency transmission resource; according to the first received power or The determining, by the first mobile communication terminal, the target time-frequency transmission resource for the data transmission, includes: determining, according to the first received power or energy, whether each time-frequency transmission resource unit in the target subframe is available, where When the received power or energy of the scheduling allocation information corresponding to the time-frequency transmission resource unit in the target subframe is greater than or equal to a predetermined threshold, the time-frequency transmission resource unit is unavailable, otherwise the time-frequency transmission resource unit is available; the transceiver uses To receive and send data; the processor is responsible for managing the bus structure and the usual processing, the memory can store the data used by the processor in the operation. The resource scheduling device of claim 9, wherein the processor performs the following process: acquiring a second received power or energy of the first mobile communication terminal on a second time-frequency transmission resource that carries the scheduling allocation information; The second received power or energy determines the first received power or energy; wherein the first received power or energy is a product of the second received power or energy and A1/K1, and the A1 is sent by the second mobile communication terminal The ratio of the first transmit power or energy at the time of the data to the second transmit power or energy that transmits the scheduling allocation information; the K1 is the number of time-frequency transmission resource units included in the first time-frequency transmission resource. The resource scheduling device according to claim 9, wherein when the first time-frequency transmission resource and the bearing When the second time-frequency transmission resource carrying the scheduling allocation information is in the same subframe, the processor performs the following process: detecting a third received power or energy of the first mobile communication terminal on the first time-frequency transmission resource; Determining the first received power or energy according to the third received power or energy; wherein the first received power or energy is a third received power/K1, where the K1 is a time-frequency transmission included in the first time-frequency transmission resource The number of resource units. The resource scheduling device according to any one of claims 9-11, wherein the processor performs the following process: according to the first mobile communication terminal transmitting each of the first time-frequency transmission resources on the time-frequency transmission resource unit The first received power or energy and the predetermined policy selection target subframe; acquiring the third received power of the first mobile communication terminal on the third time-frequency transmission resource that carries the scheduling allocation information corresponding to the target subframe Energy; determining, according to the third received power or energy, whether each time-frequency transmission resource unit in the target subframe is available; scheduling the target time-frequency transmission according to whether information is available for each time-frequency transmission resource unit in the target subframe Resources. The resource scheduling device of claim 12, wherein when the third time-frequency transmission resource and the fourth time-frequency transmission resource indicated by the scheduling information of the third time-frequency transmission resource are in the same subframe, The third received power or energy is: a fourth received power or a ratio of energy to A2; wherein the fourth received power or energy is the fourth mobile communication terminal at the fourth time The received power or energy on the frequency transmission resource, where A2 is the transmission power or energy of the second time-frequency transmission resource of the second mobile communication terminal and the transmission of the second mobile communication terminal on the third time-frequency transmission resource The ratio of power or energy. The resource scheduling device of claim 12, wherein the scheduling allocation information corresponding to the target subframe includes: scheduling allocation information of the first mode, where the fifth time-frequency transmission resource and the indicated time-frequency transmission resource are located. Not in the same subframe; and the second mode scheduling allocation information, where the sixth time-frequency transmission resource and the indicated time-frequency transmission resource are in the same subframe; the processor performs the following process: calculating the same intermediate scene, The fifth received power or the seventh power or energy corresponding to the energy of the scheduling of the first mode, and the sixth received power or the eighth power or energy corresponding to the energy of the scheduling information of the first mode; The seven received power or energy and the eighth received power or energy determine whether each time-frequency transmission resource unit in the target subframe is available. The resource scheduling device of claim 14, wherein the seventh received power or energy corresponding to the fifth received power or energy is: fifth received power or energy *N/(N+M); sixth received power or energy The corresponding eighth received power or energy is: (1+A3)*the sixth received power or energy*N/(N+M); or (1+1/A3)*the seventh received power or energy*N/( N+M); wherein, in the intermediate scenario, the time-frequency transmission resource list occupied by the scheduling allocation information The number of bits is the N, the number of time-frequency transmission resource units occupied by the data transmission is the M, and the transmission power of the time-frequency transmission resource unit is the same, and the A3 is the transmission power or energy of the data transmitted by the second mobile communication terminal. And transmitting, by the second mode, the ratio of the transmit power or the energy of the scheduling allocation information, where the seventh received power or energy is received by the first mobile communication terminal on the time-frequency transmission resource indicated by the scheduling information of the second mode Power or energy. The resource scheduling device according to claim 9, wherein the resource scheduling device is disposed in the first mobile communication terminal or the base station.