CN106572536B - Method and system for scheduling multi-cluster resources in uplink shared channel - Google Patents

Method and system for scheduling multi-cluster resources in uplink shared channel Download PDF

Info

Publication number
CN106572536B
CN106572536B CN201510646609.0A CN201510646609A CN106572536B CN 106572536 B CN106572536 B CN 106572536B CN 201510646609 A CN201510646609 A CN 201510646609A CN 106572536 B CN106572536 B CN 106572536B
Authority
CN
China
Prior art keywords
resource
carrier
user
transmitted
cluster
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510646609.0A
Other languages
Chinese (zh)
Other versions
CN106572536A (en
Inventor
黄安鹏
杨和敏
谢麟振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University
Original Assignee
Peking University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peking University filed Critical Peking University
Priority to CN201510646609.0A priority Critical patent/CN106572536B/en
Publication of CN106572536A publication Critical patent/CN106572536A/en
Application granted granted Critical
Publication of CN106572536B publication Critical patent/CN106572536B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The method comprises the steps of counting users needing to be allocated with uplink resources, generating a user list, calculating carrier priorities of the users on different carriers in the user list, determining a first carrier and a second carrier corresponding to the users, allocating the uplink resources for the users with the highest scheduling priority in the user list, and bearing the resources to be transmitted of the users through resource clusters of the first carrier and the second carrier, wherein the first carrier with the highest priority is adopted to bear the resources to be transmitted of the users as much as possible, the spectrum efficiency of the spectrum resources of each resource cluster is ensured while the channel condition of the resource clusters allocated to the users is ensured, and the utilization efficiency of the PUSCH resources is improved.

Description

Method and system for scheduling multi-cluster resources in uplink shared channel
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and a system for scheduling multiple clusters of resources in an uplink shared channel.
Background
LTE-a is short for LTE-Advanced, and is a subsequent evolution of Long Term Evolution (LTE) technology. In the LTE-a system, estimation of an Uplink Channel and Demodulation of a signal are mainly performed by a Demodulation reference signal (DMRS) of a Physical Uplink Shared Channel (PUSCH). Specifically, after receiving the DMRS, the base station obtains a channel response on the PUSCH transmission bandwidth according to a certain channel estimation algorithm, and uses the channel response to demodulate PUSCH data on a corresponding bandwidth. Due to the uplink single carrier characteristic, the longer the DMRS sequence is, the more accurate the channel estimation is, and the better the demodulation performance of the PUSCH is. The length of the DMRS sequence is equal to the number of Resource Blocks (RBs) configured for the PUSCH for the user, that is, the wider the transmission bandwidth of the PUSCH, the better the demodulation performance of the PUSCH.
A new characteristic of the LTE-A system is that uplink discontinuous transmission is supported, diversity gain can be obtained through the discontinuous transmission, and the throughput performance of an uplink is improved. In the PUSCH discontinuous resource allocation, the concept of multi-cluster transmission is introduced. Each cluster comprises 1 or more continuous RBs, a plurality of clusters can be simultaneously allocated to one UE, and the size and the number of the clusters can be flexibly scheduled.
Currently, users are scheduled on each component carrier independently, and multiple clusters of the same user are always allocated on different component carriers regardless of the channel quality of each component carrier. The length of the cluster affects the demodulation performance of the resource, and the channel quality corresponding to the carrier affects the resource utilization rate. For example, two clusters are allocated to a user, and if the lengths of the two clusters allocated to the user are the same, although the same demodulation performance is obtained, if the channel condition of a certain cluster is relatively poor, the utilization efficiency of the PUSCH resource is extremely deteriorated; if the lengths of the two clusters are allocated only in consideration of the channel conditions of the two clusters, the demodulation performance of a certain cluster is affected when the lengths of the two clusters are greatly different.
Therefore, when uplink channel resources are allocated, the flexibility of multi-cluster resource scheduling is low, and it is difficult to balance the channel quality and the demodulation performance of each cluster, so that resource transmission is affected.
Disclosure of Invention
In view of the foregoing problems, embodiments of the present application are provided to provide a method for scheduling multiple clusters of resources in an uplink shared channel and a corresponding system for scheduling multiple clusters of resources in an uplink shared channel, which overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present application discloses a method for scheduling multiple clusters of resources in an uplink shared channel, including:
counting users needing to be allocated with uplink resources to generate a user list of an uplink shared channel;
respectively calculating the carrier priority of each user on different carriers in the user list, and determining a first carrier and a second carrier corresponding to each user, wherein the carrier priority of the first carrier is higher than that of the second carrier;
extracting a user with the highest scheduling priority from the user list, and acquiring a first carrier of the user;
judging whether the resource cluster of the first carrier can bear the resource to be transmitted of the user, when the resource cluster of the first carrier can bear the resource to be transmitted of the user, allocating the resource cluster of the first carrier to the user, and adopting the resource cluster of the first carrier to bear the resource to be transmitted of the user, wherein the resource cluster is formed by continuous uplink resources on the carrier;
when the resource cluster of the first carrier cannot bear the resource to be transmitted of the user, acquiring a second carrier corresponding to the user, allocating the resource clusters on the first carrier and the second carrier to the user, and bearing the resource to be transmitted of the user through the resource clusters of the first carrier and the second carrier.
Preferably, the calculating the carrier priorities of the users in the user list on different carriers respectively and determining the first carrier and the second carrier corresponding to each user respectively includes:
respectively acquiring broadband channel quality information of the user on each carrier and frequency spectrum resource information distributed to the user by the carrier;
calculating the ratio of the broadband channel quality indication information to the frequency spectrum resource information aiming at the same carrier wave;
counting the ratio of each carrier, and determining the carrier priority of each carrier corresponding to the user;
and determining the carrier with the largest ratio as the first carrier of the user, and determining the carrier with the second largest ratio as the second carrier.
Preferably, the determining whether the resource cluster of the first carrier can bear the resource to be transmitted of the user, and when the resource cluster of the first carrier can bear the resource to be transmitted of the user, allocating the resource cluster of the first carrier to the user, and using the resource cluster of the first carrier to bear the resource to be transmitted of the user includes:
extracting a resource cluster with the maximum transmission capacity on the first carrier;
judging whether the resource cluster with the maximum transmission capacity can bear the resources to be transmitted of the user;
when the resource cluster with the maximum transmission capacity can bear the resources to be transmitted of the user, allocating the resource cluster with the maximum transmission capacity to the user, and adopting the resource cluster with the maximum transmission capacity to bear the resources to be transmitted of the user;
when the resource cluster with the maximum transmission capacity can not bear the resource to be transmitted of the user, extracting two resource clusters with the maximum transmission capacity on the first carrier;
judging whether the two extracted resource clusters can bear the resources to be transmitted of the user or not;
and when the two extracted resource clusters can bear the resources to be transmitted of the user, allocating the two extracted resource clusters to the user, and adopting the two resource clusters to bear the resources to be transmitted of the user.
Preferably, the allocating the two extracted resource clusters to the user, and using the two resource clusters to carry the resources to be transmitted of the user includes:
calculating the resource size of the resource to be transmitted of the user;
determining the length of a resource cluster bearing the resources to be transmitted by adopting the resource size of the resources to be transmitted;
extracting two resource clusters of the first carrier according to the determined length;
and bearing the resources to be transmitted of the user through the two extracted resource clusters.
Preferably, the allocating the resource clusters on the first carrier and the second carrier to the user and carrying the resources to be transmitted of the user through the resource clusters of the first carrier and the second carrier includes:
extracting a resource cluster with the maximum transmission capacity on the first carrier, and determining the resource cluster as a first resource cluster;
respectively calculating the resource size of the resource to be transmitted of the user and the resource size capable of being borne by the first resource cluster, and determining the resource size of the remaining resource to be transmitted;
extracting a resource cluster on the second carrier according to the size of the resource of the remaining resource to be transmitted, and determining the resource cluster as a second resource cluster;
and bearing the resources to be transmitted of the user through the first resource cluster and the second resource cluster.
Preferably, the method further comprises:
deleting the users that have been allocated to the resource cluster from the user list;
and recalculating the carrier wave priorities of the rest users in the user list on different carrier waves, and continuously allocating uplink resources to the user with the highest scheduling priority in the rest users.
Correspondingly, the present application also provides a system for scheduling multiple clusters of resources in an uplink shared channel, including:
the user list generating module is used for counting the users needing to be allocated with the uplink resources and generating a user list of the uplink shared channel;
the calculating module is used for respectively calculating the carrier priority of each user in the user list on different carriers and determining a first carrier and a second carrier corresponding to each user, wherein the carrier priority of the first carrier is higher than that of the second carrier;
a first obtaining module, configured to extract a user with a highest scheduling priority from the user list, and obtain a first carrier of the user;
the first judging module is used for judging whether the resource cluster of the first carrier can bear the resource to be transmitted of the user, when the resource cluster of the first carrier can bear the resource to be transmitted of the user, the resource cluster of the first carrier is allocated to the user, the resource to be transmitted of the user is borne by the resource cluster of the first carrier, and the resource cluster is formed by continuous uplink resources on the carrier;
and a second obtaining module, configured to obtain a second carrier corresponding to the user when the resource cluster of the first carrier cannot bear the resource to be transmitted of the user, allocate the resource clusters on the first carrier and the second carrier to the user, and bear the resource to be transmitted of the user through the resource clusters of the first carrier and the second carrier.
Preferably, the calculation module includes:
the information acquisition submodule is used for respectively acquiring the broadband channel quality information of the user on each carrier and the frequency spectrum resource information distributed to the user by the carrier;
the calculating submodule is used for calculating the ratio of the broadband channel quality indication information to the frequency spectrum resource information aiming at the same carrier wave;
the carrier priority determining submodule is used for counting the ratio of each carrier and determining the carrier priority of each carrier corresponding to the user;
and the carrier determining submodule is used for determining the carrier with the largest ratio as the first carrier of the user and determining the carrier with the second largest ratio as the second carrier.
Preferably, the first judging module includes:
a first extraction submodule, configured to extract a resource cluster with a largest transmission capacity on the first carrier;
the first judging submodule is used for judging whether the resource cluster with the maximum transmission capacity can bear the resource to be transmitted of the user;
the first allocating sub-module is configured to allocate the resource cluster with the largest transmission capacity to the user when the resource cluster with the largest transmission capacity can carry the resource to be transmitted of the user, and use the resource cluster with the largest transmission capacity to carry the resource to be transmitted of the user;
a second extraction submodule, configured to extract two resource clusters with the largest transmission capacity on the first carrier when the resource cluster with the largest transmission capacity cannot bear the resource to be transmitted of the user;
the second judgment submodule is used for judging whether the two extracted resource clusters can bear the resources to be transmitted of the user or not;
and the second allocating submodule is used for allocating the two extracted resource clusters to the user when the two extracted resource clusters can bear the resources to be transmitted of the user, and adopting the two resource clusters to bear the resources to be transmitted of the user.
Preferably, the second allocating sub-module includes:
the resource calculation unit is used for calculating the resource size of the resource to be transmitted of the user;
a resource length determining unit, configured to determine, by using the resource size of the resource to be transmitted, a length of a resource cluster that carries the resource to be transmitted;
a resource cluster extracting unit, configured to extract two resource clusters of the first carrier according to the determined length;
and the bearing unit is used for bearing the resources to be transmitted of the user through the two extracted resource clusters.
Preferably, the second obtaining module includes:
a first resource cluster determining submodule, configured to extract a resource cluster with the largest transmission capacity on the first carrier, and determine the resource cluster as a first resource cluster;
the residual resource calculation sub-module is used for calculating the resource size of the resource to be transmitted of the user and the resource size capable of being borne by the first resource cluster respectively and determining the resource size of the residual resource to be transmitted;
a second resource cluster determining submodule, configured to extract a resource cluster on the second carrier according to the size of the resource of the remaining resource to be transmitted, and determine the resource cluster as a second resource cluster;
and the bearing sub-module is used for bearing the resources to be transmitted of the user through the first resource cluster and the second resource cluster.
Preferably, the scheduling system further includes:
and the user deleting module is used for deleting the users which are distributed to the resource cluster from the user list.
Compared with the prior art, the method has the following advantages:
according to the method and the device, users needing to be allocated with uplink resources are counted, a user list is generated, carrier priorities of the users on different carriers in the user list are calculated, a first carrier and a second carrier corresponding to the users are determined, the uplink resources are allocated to the users with the highest scheduling priority in the user list, and the resources to be transmitted of the users are borne through resource clusters of the first carrier and the second carrier, wherein the resources to be transmitted of the users are borne by the first carrier with the highest priority as much as possible, the spectrum efficiency of the spectrum resources of each resource cluster is guaranteed while the channel conditions of the resource clusters allocated to the users are guaranteed, and therefore the utilization efficiency of the PUSCH resources is improved.
In the embodiment of the application, whether the resource cluster of the first carrier can bear the resource to be transmitted of the user is judged, and when the resource cluster of the first carrier can bear the resource to be transmitted of the user, the resource cluster of the first carrier with the highest carrier priority is adopted to bear the resource to be transmitted of the user, so that the resource clusters distributed to the user are on the same carrier, and the utilization rate of PUSCH (physical uplink shared channel) resources is further improved; when the first carrier wave can not bear the resource to be transmitted of the user, the resource to be transmitted of the user is borne through the resource clusters of the first carrier wave and the second carrier wave, so that the flexibility of multi-cluster resource scheduling is improved, the maximum balance is obtained between the channel quality and the demodulation performance of each cluster, and the quality of resource transmission is ensured.
Drawings
Fig. 1 is a flowchart illustrating steps of an embodiment of a method for scheduling multiple clusters of resources in an uplink shared channel according to the present application;
fig. 2 is a schematic diagram of a resource cluster formed by consecutive resource blocks on a carrier according to an embodiment of the present application;
fig. 3 is a flowchart illustrating steps of another embodiment of a method for scheduling multiple clusters of resources in an uplink shared channel according to the present application;
fig. 4 is a flowchart illustrating steps of a preferred embodiment of another method for scheduling multiple clusters of resources in an uplink shared channel according to the present application;
fig. 5 is a block diagram illustrating a structure of an embodiment of a system for scheduling multiple clusters of resources in an uplink shared channel according to the present application;
fig. 6 is a block diagram of a most preferred embodiment of a scheduling system for multiple clusters of resources in an uplink shared channel according to the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
A new characteristic of the LTE-A system is that uplink discontinuous transmission is supported, diversity gain can be obtained through the discontinuous transmission, and the throughput performance of an uplink is improved.
In the PUSCH discontinuous resource allocation, the concept of multi-cluster transmission is introduced. Each cluster (i.e. resource cluster) contains 1 or more continuous RBs, multiple resource clusters can be allocated to one UE at the same time, and the size and number of the resource clusters can be flexibly scheduled.
The new standard (Rel-10) of the LTE-a system has supported simultaneous allocation of two resource clusters on the same component carrier (carrier for short), whereas the prior art solution schedules users on each component carrier independently, and a plurality of resource clusters are always allocated on different component carriers regardless of the channel quality of each component carrier. Thus, it cannot be guaranteed that each resource cluster is allocated to a component carrier with a better quality channel. If a resource cluster is allocated to a component carrier with poor channel quality, the spectral efficiency of the spectrum resources in the resource cluster is low. For example, assuming that there are two component carriers CC1 and CC2, and two users UE1 and UE2, for UE1, the channel quality of CC1 is much better than that of CC2, the spectral efficiency of UE1 transmitting data on CC1 is 5bit/s/Hz, and the spectral efficiency of transmitting data on CC2 is 1 bit/s/Hz. For UE2, the channel quality of CC2 is much better than CC1, with a spectral efficiency of 5 bits/s/Hz for data transmission on CC2 and 1bit/s/Hz on CC 1. According to the existing uplink resource allocation method, the UE1 is allocated to a spectrum resource of one cluster on the CC1 and is allocated to a spectrum resource of one cluster on the CC 2; the same is true for UE2, i.e., allocated to one cluster of spectrum resources on CC1 and allocated to one cluster of spectrum resources on CC 2. Assuming that the lengths of resource clusters allocated by the UE1 and the UE2 are equal and are 5 RBs, the spectrum efficiency of the spectrum resources in the resource clusters allocated to the UE1 and the UE2 is 3 bit/s/Hz; if the two resource clusters required by the UE1 are provided by the CC1 and the two resource clusters required by the UE2 are provided by the CC2 in consideration of the channel quality situation of the component carriers, the spectral efficiency of the spectrum resources allocated to the resource clusters of the UE1 and the UE2 can reach 5 bit/s/Hz.
Obviously, according to the existing uplink resource allocation method, the users are independently scheduled on each member carrier without considering the channel quality of the member carrier, so that the resource cluster allocated to the users can be on the member carrier with poor channel quality, the spectrum efficiency of the spectrum resources in the resource cluster is reduced, and the resource transmission is influenced.
Therefore, one of the core concepts of the embodiment of the present application is to allocate uplink resources to a user with the highest scheduling priority, and to adopt a resource cluster of a first carrier with the highest priority as much as possible to carry resources to be transmitted of the same user, so that while channel conditions of the resource cluster allocated to the user are ensured, the spectrum efficiency of spectrum resources of each resource cluster is ensured, thereby improving the utilization efficiency of PUSCH resources.
Referring to fig. 1, a flowchart illustrating steps of an embodiment of a method for scheduling multiple clusters of resources in an uplink shared channel according to the present application is shown, which may specifically include the following steps:
step 101, counting the users needing to allocate uplink resources, and generating a user list of the uplink shared channel.
When allocating uplink resources to users, statistics may be performed on all users that need to allocate uplink resources, and then the scheduling priority of each user is determined, so as to generate a user list that needs to go to an uplink shared channel. The user list records all users needing to allocate uplink resources and the corresponding scheduling priorities of the users. The scheduling priority may be characterized as a priority order of uplink resource allocation for the user, for example, a user with a higher scheduling priority may be allocated to the uplink resource first.
Step 103, calculating the carrier priority of each user in the user list on different carriers respectively, and determining a first carrier and a second carrier corresponding to each user.
In fact, the channel quality of different carriers may be different, that is, the channel conditions of users on different carriers are different; moreover, for the same user, the spectrum resources allocated to the user by different carriers may also be different, that is, the loads of the carriers are different.
The carrier priority of a carrier can be determined by calculating the ratio of the channel quality information of a user on the carrier to the spectrum information allocated to the user by the carrier. Specifically, the Channel condition of a user on a carrier may be understood as the size of wideband Channel Quality Information (CQI) of the user on the carrier, and the load of the carrier may be understood as the number of RBs occupied by the user. The higher the carrier priority of a carrier, the better the channel quality of the carrier to the user. For example, if the wideband CQI of the user i on the carrier j is K, and the number of occupied RBs in the carrier j is N, K/N represents the priority of the user i on the carrier j, and when K is larger (i.e., the channel condition of the user i on the carrier j is better), N is smaller (i.e., the load on the carrier j is smaller), the carrier priority of the user i on the carrier j is higher.
The carrier with the highest carrier priority (i.e., the largest ratio) is determined as the first carrier of the user, the carrier with the second highest carrier priority is determined as the second carrier of the user, and so on, the carrier with the carrier priority ranking as X bits is called the xth carrier, X is a positive integer, and it is seen that the carrier priority of the first carrier is higher than the carrier priority of the second carrier.
In a preferred embodiment of the present application, the step 103 may further include the following sub-steps:
and a substep S10301, respectively obtaining the quality information of the wideband channel of the user on each carrier and the spectrum resource information allocated to the user by the carrier.
And a substep S10303 of calculating a ratio of the wideband channel quality indication information to the spectrum resource information for the same carrier.
And a substep S10305 of counting the ratio of each carrier and determining the carrier priority of each carrier corresponding to the user.
Sub-step S10307, determining the carrier with the largest ratio as the first carrier of the user, and determining the carrier with the second largest ratio as the second carrier.
As an example of specific application of the present application, assuming that there are 3 carriers, CC1, CC2, and CC3, respectively, carrier priorities of UE1 on CC1, CC2, and CC3 are calculated, and the determining of the first carrier or the second carrier of user UE1 may specifically include the following sub-steps:
s1, respectively obtaining broadband channel quality information of the UE1 on CC1, CC2 and CC3, and spectrum resource information allocated to the UE1 by CC1, CC2 and CC3, for example, the broadband channel quality information on CC1, CC2 and CC3 are a, B and C, respectively; the spectrum resource information allocated to the UE1 by the CC1, the CC2 and the CC3 are X, Y and Z, respectively.
S2, respectively calculating the ratio of the broadband channel quality information of CC1, CC2 and CC3 to the frequency spectrum resource information distributed to UE1, specifically, the ratio of CC1 is A/X; the ratio of CC2 is B/Y; the ratio of CC3 is C/Z.
S3, performing statistics on CC1, CC2, and CC3, and determining carrier priorities of CC1, CC2, and CC3, for example, the carrier priorities may include high, medium, and low, and the size relationship of the ratio of each carrier is C/Z > a/X > B/Y, so that the carrier priority of CC3 is high, the carrier priority of CC2 is low, and the carrier priority of CC1 is medium.
S4, determine CC3 as the first carrier for UE1 and CC1 as the second carrier for UE 1.
And 105, extracting the user with the highest scheduling priority from the user list, and acquiring the first carrier of the user.
In the embodiment of the application, the resource allocation can be performed on the users needing to allocate the resource according to the scheduling priority order of the users. And comparing the scheduling priorities of the users in the user list to determine the user with the highest scheduling priority, extracting the user with the highest scheduling priority from the user list, and extracting the first carrier of the user.
Step 107, judging whether the resource cluster of the first carrier can bear the resource to be transmitted of the user, and when the resource cluster of the first carrier can bear the resource to be transmitted of the user, allocating the resource cluster of the first carrier to the user.
When the resource cluster of the first carrier can bear the resource to be transmitted of the user, the resource cluster on the first carrier is allocated to the user, and the resource cluster of the first carrier is adopted to bear the resource to be transmitted of the user, wherein the resource cluster is formed by continuous uplink resources on the carrier.
In particular, consecutive resource blocks on a carrier may constitute one resource cluster. The maximum length of the resource cluster is related to the resource occupation situation of the carrier. For example, referring to fig. 2, where RB #2 and RB #5 are occupied (gray mark), the resource cluster with the longest carrier length is the resource cluster composed of RB # 6, 7, and 8. As can be seen from fig. 2, a resource cluster is a subset of the resources on a carrier. By judging whether the resource cluster on the first carrier can bear all the resources to be transmitted of the user, that is, whether the transmission capacity of the resource cluster of the first carrier of the user is greater than or equal to the transmission demand of the user is judged. If the transmission capacity of the resource cluster of the first carrier is greater than or equal to the transmission demand of the user, that is, the resource cluster of the first carrier can bear all the resources to be transmitted of the user, the resource cluster of the first carrier is allocated to the user, and the resources to be transmitted of the user are transmitted through the resource cluster of the first carrier.
It should be noted that the transmission capacity of the resource cluster may be determined by the CQI and the Signal to Interference plus Noise Ratio (SINR) of the RB in the resource cluster, for example, if the CQI of the RB in the resource cluster is k, the transmission capacity C of the cluster may be obtained according to the MCS level determined by the CQI, and the SINR of the RB is obtained according to the measurement of the base station, so that the corresponding Block Error Rate (BLER) may be obtained. Therefore, C × BLER can be used as the transmission capacity of the resource cluster. In addition, each user feeds back a Buffer State Report (BSR) to the base station, which includes the transmission demand of the user.
Step 109, when the resource cluster of the first carrier cannot bear the resource to be transmitted of the user, acquiring a second carrier corresponding to the user, and allocating the resource clusters on the first carrier and the second carrier to the user.
When the resource cluster of the first carrier of the user cannot bear all the resources to be transmitted of the user, the second carrier of the user can be extracted, the first carrier and the resource cluster on the second carrier are allocated to the user, and the resources to be transmitted of the user are borne through the resource cluster of the first carrier and the resource cluster of the second carrier.
In the embodiment of the application, a user list is generated by counting the users needing to be allocated with the uplink resources; determining a first carrier and a second carrier corresponding to each user by calculating the carrier priority of each user on different carriers in the user list; and then, extracting the user with the highest scheduling priority in the user list, and allocating uplink resources for the user. In the process of allocating uplink resources, the first carrier with the highest carrier priority is adopted as much as possible to bear the resources to be transmitted of the user, the channel conditions of the resource clusters allocated to the user are guaranteed, and meanwhile, the spectrum efficiency of the spectrum resources of each resource cluster is guaranteed, so that the utilization efficiency of the PUSCH resources is improved. In addition, when the resource cluster of the first carrier cannot bear all the resources to be transmitted of the user, the resources to be transmitted of the user can be borne through the resource clusters of the first carrier and the second carrier, so that the flexibility of multi-cluster resource scheduling is improved, the maximum balance is obtained between the channel quality and the demodulation performance of each cluster, and the quality of resource transmission is ensured.
It should be noted that, according to the standard of the communication system, how many resource clusters are simultaneously allocated on the same carrier, it may be set that resource clusters with the same number transmit resources to be transmitted of the same user.
For example, the new standard (e.g., Rel-10) of the LTE-a system already supports that two resource clusters are allocated on the same carrier at the same time, so that resources to be transmitted of the same user can be carried by one or two resource clusters of the first carrier, or by one resource cluster of the first carrier and one resource cluster of the first carrier.
Referring to fig. 3, a flowchart illustrating steps of another embodiment of a method for scheduling multiple clusters of resources in an uplink shared channel according to the present application is shown, which may specifically include the following steps:
step 301, counting the users needing to allocate uplink resources, and generating a user list of the uplink shared channel.
Step 303, calculating carrier priorities of the users on different carriers in the user list, and determining a first carrier and a second carrier corresponding to each user.
Step 305, extracting the user with the highest scheduling priority from the user list, and acquiring the first carrier of the user.
Step 307, determining whether the resource cluster of the first carrier can carry the resource to be transmitted of the user.
Actually, the resource cluster of the first carrier may be preferentially adopted to carry the resource to be transmitted of the user. Specifically, when the resource cluster of the first carrier can carry all the resources to be transmitted of the user, that is, the resource cluster of the first carrier can meet the transmission requirement of the user, the resource cluster of the first carrier is allocated to the user for use, that is, step 309 is executed; when the resource cluster of the first carrier cannot carry all the resources to be transmitted of the user, that is, the resource cluster of the first carrier cannot meet the transmission requirement of the user, a suitable resource cluster is extracted from the second carrier and is used by the user, that is, step 311 is executed.
Step 309, allocating the resource cluster of the first carrier to the user.
In fact, if one resource cluster of the first carrier can carry all the resources to be transmitted of the user, that is, when one resource cluster of the first carrier can meet the transmission requirement of the user, the resource cluster can be allocated to the user, and the resource cluster is directly adopted to carry the resources to be transmitted of the user. If one resource cluster of the first carrier can not bear all the resources to be transmitted of the user, namely one resource cluster of the first carrier can not meet the transmission requirement of the user, two resource clusters are extracted from the first carrier, and whether the two resource clusters can meet the transmission requirement of the user or not is judged. When the two resource clusters of the first carrier can meet the transmission requirement of a user, the two resource clusters of the first carrier are allocated to the user, and the lengths of the two resource clusters are kept the same as much as possible.
In a preferred embodiment of the present application, the step 309 may comprise the following sub-steps:
and a substep S30901, extracting a resource cluster with the maximum transmission capacity on the first carrier.
And a substep S30903, determining whether the resource cluster with the largest transmission capacity can bear the resource to be transmitted of the user.
If the resource cluster with the maximum transmission capacity can bear all the resources to be transmitted of the user, executing a substep S30905; if the resource cluster with the largest transmission capacity cannot carry the resource to be transmitted of the user, the sub-step S30907 is performed.
And a substep S30905 of allocating the resource cluster with the largest transmission capacity to the user.
And a substep S30907, extracting two resource clusters with the maximum transmission capacity on the first carrier.
And a substep S30909, which determines whether the extracted two resource clusters can bear the resources to be transmitted of the user.
If the two extracted resource clusters can bear the resources to be transmitted of the user, performing a substep S30911; if the two extracted resource clusters cannot bear the resources to be transmitted of the user, step 311 is executed.
And a substep S30911, allocating the two extracted resource clusters to the user, and adopting the two resource clusters to bear the resources to be transmitted of the user.
In a specific implementation, the resource cluster with the largest transmission capacity of the first carrier may be preferentially extracted, and whether the resource cluster can carry all the resources to be transmitted of the user is determined. When the resource cluster with the maximum transmission capacity of the first carrier can already bear all the resources to be transmitted of the user, the resource cluster with the maximum transmission capacity on the first carrier of the user is allocated to the user, and one resource cluster with the maximum transmission capacity on the first carrier is directly adopted to bear all the resources to be transmitted of the user. When the resource cluster with the maximum transmission capacity of the first carrier cannot bear all the resources to be transmitted of the user, extracting the two resource clusters with the maximum transmission capacity on the first carrier of the user, and judging whether the two extracted resource clusters with the maximum transmission capacity on the first carrier can bear all the resources to be transmitted of the user. When the two resource clusters with the maximum transmission capacity on the first carrier can bear all the resources to be transmitted of the user, the two resource clusters with the maximum transmission capacity on the first carrier are allocated to the user, that is, the two resource clusters with the maximum transmission capacity on the first carrier bear the resources to be transmitted of the user. When the two resource clusters with the maximum transmission capacity on the first carrier cannot bear all the resources to be transmitted of the user, it may be determined that the resource cluster of the first carrier cannot bear all the resources to be transmitted of the user, and then step 311 is performed. In order to obtain the best demodulation performance of the resource clusters, the lengths of the two resource clusters on the first carrier allocated to the user can be made equal as much as possible, so that the demodulation performance of the two resource clusters is the same; if the lengths of the two resource clusters cannot be made to be the same, the length difference between the two resource clusters can be made as small as possible to make the demodulation performance of the two resource clusters on the first carrier the same.
In a preferred embodiment of the present application, the allocating the two extracted resource clusters to the user, and using the two resource clusters to carry the resources to be transmitted of the user, may further include the following sub-steps:
and a substep S30911-1, calculating the resource size of the resource to be transmitted of the user.
And a substep S30911-3, determining the length of the resource cluster bearing the resource to be transmitted by adopting the resource size of the resource to be transmitted.
And a substep S30911-5 of extracting two resource clusters of the first carrier according to the determined length.
And a substep S30911-7 of bearing the resources to be transmitted of the user through the two extracted resource clusters.
The transmission capacity of the resource cluster having a length of 1RB may be determined according to the first carrier channel condition. The resource size of the resource to be transmitted of the user can be determined by calculating the transmission demand of the user, the total length of the resource cluster bearing all the resources to be transmitted of the user can be calculated according to the transmission capacity of the resource cluster with the length of 1RB and the resource size of the resource to be transmitted of the user, and then the lengths of two clusters allocated to the user can be determined.
For example, if the resource size of the resource to be transmitted of the UE1 is determined to be M and the transmission capacity of the resource cluster with the length of 1RB on the first carrier of the user is determined to be C1 by calculation, the length of the resource cluster carrying all the resources to be transmitted of the UE1 may be determined to be M/C1. Assuming that the value of M/C1 is 6RB, searching for a resource cluster on the first carrier, extracting two resource clusters with the length of 3RB from the first carrier when two resource clusters with the length of 3RB can be formed on the first carrier, allocating the two resource clusters with the length of 3RB to UE1, and using the two resource clusters with the length of 3RB to carry the to-be-transmitted resource of UE 1. When two resource clusters with the length of 3RB cannot be formed on the first carrier, but two resource clusters with the lengths of 2RB and 4RB, respectively, or two resource clusters with the lengths of 1RB and 5RB, respectively, are formed, two resource clusters with the lengths of 1RB and 5RB, respectively, are extracted from the first carrier, and the two resource clusters with the lengths of 2RB and 4RB, respectively, on the first carrier are used to carry the resources to be transmitted of the UE 1.
In the embodiment of the present application, when two resource clusters on the first carrier are used to transmit the user resources, two resource clusters with the same length on the first carrier may be used to bear the resources to be transmitted of the user as much as possible, so that the demodulation performance of the two resource clusters is the same.
Step 311, obtaining a second carrier corresponding to the user, and allocating resource clusters on the first carrier and the second carrier to the user;
when the two resource clusters with the maximum transmission capacity on the first carrier cannot bear all the resources to be transmitted of the user, the second carrier of the user is obtained, then the resource clusters on the first carrier and the second carrier are allocated to the user, and the resources to be transmitted of the user are borne through the resource clusters of the first carrier and the second carrier.
Specifically, when two resource clusters of the first carrier cannot meet the transmission requirement of the user, the resource cluster with the largest transmission capacity can be extracted from the first carrier and allocated to the user, and then an appropriate resource cluster is extracted from the second carrier of the user and given to the user. For example, the resource size of all resources to be transmitted of a user is L, the transmission capacity of a resource cluster allocated to the user on a first carrier is C1, the transmission capacity of a resource cluster with the largest capacity that the user can obtain on a second carrier is C2, and if the sum of the transmission capacity C1 of the resource cluster of the first carrier and the transmission capacity C2 of the resource cluster of the second carrier is greater than the resource size L of all resources to be transmitted (i.e., C1+ C2> L), a resource cluster with the transmission capacity closest to L-C1 is extracted on the second carrier, that is, the resource cluster with the transmission capacity of L-C1 is determined as a suitable resource cluster; otherwise, determining the resource cluster with the transmission capacity of C2 as a proper resource cluster, that is, in a case that the sum of the transmission capacity C1 of the resource cluster of the first carrier and the transmission capacity C2 of the resource cluster of the second carrier is not greater than the resource size of all the resources to be transmitted is L (that is, C1+ C2> ═ L), determining the resource cluster with the maximum transmission capacity on the second carrier as a proper resource cluster, and allocating the resource cluster to the user.
In a preferred embodiment of the present application, the resource clusters on the first carrier and the second carrier are allocated to the user, and the resource cluster of the first carrier and the second carrier carries the resource to be transmitted of the user, which may further include the following sub-steps:
and a substep S31101, extracting a resource cluster with the largest transmission capacity on the first carrier, and determining the resource cluster as the first resource cluster.
And a substep S31103 of calculating the resource size of the resource to be transmitted of the user and the resource size that can be borne by the first resource cluster, and determining the resource size of the remaining resource to be transmitted.
And a substep S31105, extracting a resource cluster on the second carrier according to the resource size of the remaining resource to be transmitted, and determining the resource cluster as a second resource cluster.
And a substep S31107, which carries the resource to be transmitted of the user through the first resource cluster and the second resource cluster.
In a specific implementation, one resource cluster with the largest transmission capacity is extracted from the first carrier, and the first resource cluster is labeled, that is, the first resource cluster is enabled to bear more resources to be transmitted by the user as much as possible. Calculating the transmission capacity of the first resource cluster, determining the size of the resource of the user to be transmitted, which can be borne by the first resource cluster, and calculating the size of all the resources of the user to be transmitted. The resource size that the first resource cluster can bear is subtracted from the resource size of all resources to be transmitted of the user, so that the resource size that the second carrier needs to bear can be determined, that is, the length (for example, 2RB) of the resource cluster extracted from the second carrier can be determined. And extracting a resource cluster from the second carrier according to the determined length, and marking the resource cluster as a second resource cluster, wherein the length of the second resource cluster is the determined length (namely 2 RB).
According to the embodiment of the application, the resource cluster of the first carrier is adopted as much as possible to bear more resources to be transmitted, so that better system performance is obtained.
Step 313, deleting the users already allocated to the resource cluster from the user list.
When the user is already allocated to the resource cluster, deleting the user from the user list of the uplink shared channel, then recalculating the carrier priorities of the remaining users in the user list on different carriers, and continuing to allocate uplink resources to the user with the highest scheduling priority in the remaining users.
In a specific implementation process, according to the sequence of the scheduling priority of each user in the user list, uplink resources are allocated to all users in the user list, and the uplink resource allocation is not finished until all users in the user list have allocated uplink resources, that is, the user list is empty.
In order to make the embodiment of the present application better understood by those skilled in the art, the implementation process of the embodiment of the present application is described in detail below with reference to fig. 4.
Referring to fig. 4, a flowchart illustrating steps of another preferred embodiment of a method for scheduling multiple clusters of resources in an uplink shared channel according to the present application is shown, and a specific implementation process is as follows:
step 401, a user list UE _ PUSCH _ list of the uplink shared channel is generated. Specifically, the statistics is performed on the users to which the uplink resources need to be allocated, and a user list UE _ PUSCH _ list of the uplink shared channel is generated.
Step 403, determine whether UE _ PUSCH _ list is an empty list. If yes, ending the uplink resource allocation; if the UE _ PUSCH _ list is not an empty list, step 405 is performed.
In step 405, the carrier priorities of the users in the UE _ PUSCH _ list on different carriers are calculated.
Step 407, select the user i with the highest scheduling priority and the first carrier j with the highest corresponding carrier priority.
Step 409, determining whether the transmission requirement of the user i can be satisfied by a resource cluster of the first carrier j. If yes, go to step 411; if the transmission requirement of user i cannot be satisfied by one resource cluster of the first carrier j, step 413 is executed. Specifically, find out the resource cluster with the largest transmission capacity on the carrier j (i.e. the consecutive and unoccupied RB), compare the transmission capacity of the resource cluster with the transmission requirement of the user, if the transmission capacity of the resource cluster is greater than or equal to the transmission requirement of the user i, execute step 411; if the transmission capacity of the resource cluster is smaller than the transmission requirement of user i, step 413 is executed.
Step 411, allocating a resource cluster with the maximum transmission capacity on the first carrier j to the user i. It can be understood that one resource cluster with the largest transmission capacity on the first carrier is extracted, and the extracted resource cluster with the largest transmission capacity is allocated to the user i for use. After the allocation is completed, step 421 is performed.
In step 413, it is determined whether the transmission requirement of the user i can be satisfied by two resource clusters of the first carrier j. If so, step 415 is executed, and if the transmission requirement of the user i cannot be met by one resource cluster of the first carrier j, step 417 is executed.
Step 415, two resource clusters on the first carrier j are allocated to the user i, and the lengths of the two resource clusters are made to be the same as much as possible. That is, two clusters with the largest transmission capacity on the first carrier j are found, if the sum of the transmission capacities of the two clusters is not less than the transmission requirement of the user i, the two clusters are allocated to the user i for use, and the lengths of the two resource clusters are made equal to each other as much as possible, and then step 421 is executed.
Step 417, the resource cluster of the user i is expanded as much as possible by the first carrier j. Specifically, one resource cluster is expanded on the carrier j as much as possible until the transmission power reaches the upper limit or no resource can be allocated, and the resource of the expanded resource cluster is allocated to the user i for use.
Step 419, according to the calculated carrier priority, selecting the second carrier j' with the second highest carrier priority of the user i, and expanding the resource cluster of the user i on the carrier as much as possible.
In step 421, delete user i from UE _ PUSCH _ list, and then jump to execute step 403.
In the embodiment of the present application, if resources on a member carrier of a system are limited (that is, a transmission requirement of a user cannot be met on a single carrier), a resource cluster needs to be allocated to the user on two carriers, and at this time, a difference between the two resource clusters is enlarged as much as possible, so that the length of the resource cluster with good channel conditions is as long as possible, and the length of the cluster with poor channel conditions is as short as possible, thereby obtaining better system performance; if the resource on the member carrier of the system is not limited, two clusters can be allocated to the user on a single carrier, and at the moment, the lengths of the two clusters are made to be the same as much as possible so as to obtain the same demodulation performance.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required of the embodiments of the application.
Referring to fig. 5, a block diagram of a structure of an embodiment of a scheduling system for multiple clusters of resources in an uplink shared channel according to the present application is shown, which may specifically include the following modules:
a user list generating module 501, configured to count users needing to allocate uplink resources, and generate a user list of an uplink shared channel.
A calculating module 503, configured to calculate carrier priorities of the users in the user list on different carriers, and determine a first carrier and a second carrier corresponding to each user, where the carrier priority of the first carrier is higher than the carrier priority of the second carrier.
A first obtaining module 505, configured to extract a user with the highest scheduling priority from the user list, and obtain a first carrier of the user.
A first determining module 507, configured to determine whether the resource cluster of the first carrier can bear the resource to be transmitted of the user, when the resource cluster of the first carrier can bear the resource to be transmitted of the user, allocate the resource cluster of the first carrier to the user, and use the resource cluster of the first carrier to bear the resource to be transmitted of the user, where the resource cluster is formed by consecutive uplink resources on the carrier.
A second obtaining module 509, configured to, when the resource cluster of the first carrier cannot bear the resource to be transmitted of the user, obtain a second carrier corresponding to the user, allocate the resource clusters on the first carrier and the second carrier to the user, and bear the resource to be transmitted of the user through the resource clusters of the first carrier and the second carrier.
Referring to fig. 6, a block diagram of a most preferred embodiment of a scheduling system for multiple clusters of resources in an uplink shared channel according to the present application is shown.
In a preferred embodiment of the present application, the calculation module 503 may include the following sub-modules:
an information obtaining sub-module 50301, configured to obtain the wideband channel quality information of the user on each carrier and the spectrum resource information allocated to the user by the carrier.
The calculating sub-module 50303 is configured to calculate, for the same carrier, a ratio of the wideband channel quality indication information to the spectrum resource information.
A carrier priority determining submodule 50305, configured to count a ratio of each carrier, and determine a carrier priority of each carrier corresponding to the user.
A carrier determining submodule 50307, configured to determine the carrier with the largest ratio as the first carrier of the user, and determine the carrier with the second largest ratio as the second carrier.
In a preferred embodiment of the present application, the first determining module 507 may include the following sub-modules:
the first extracting sub-module 50701 is configured to extract a resource cluster with a largest transmission capacity on the first carrier.
The first determining sub-module 50703 is configured to determine whether the resource cluster with the largest transmission capacity can carry the resource to be transmitted of the user.
A first allocating module 50705, configured to allocate the resource cluster with the largest transmission capacity to the user when the resource cluster with the largest transmission capacity can carry the resource to be transmitted of the user, and use the resource cluster with the largest transmission capacity to carry the resource to be transmitted of the user.
A second extracting sub-module 50707, configured to extract, when the resource cluster with the largest transmission capacity cannot carry the resource to be transmitted of the user, two resource clusters with the largest transmission capacity on the first carrier.
The second determining submodule 50709 is configured to determine whether the extracted two resource clusters can carry the resource to be transmitted of the user.
The second allocating sub-module 50711 is configured to, when the two extracted resource clusters can carry the resources to be transmitted of the user, allocate the two extracted resource clusters to the user, and use the two resource clusters to carry the resources to be transmitted of the user.
In a preferred embodiment of the present application, the second allocating sub-module may specifically include the following units:
and the resource calculation unit is used for calculating the resource size of the resource to be transmitted of the user.
And the resource length determining unit is used for determining the length of the resource cluster bearing the resources to be transmitted by adopting the resource size of the resources to be transmitted.
And a resource cluster extraction unit, configured to extract two resource clusters of the first carrier according to the determined length.
And the bearing unit is used for bearing the resources to be transmitted of the user through the two extracted resource clusters.
In a preferred embodiment of the present application, the second obtaining module 509 may include the following sub-modules:
the first resource cluster determining sub-module 50901 is configured to extract a resource cluster with the largest transmission capacity on the first carrier, and determine the resource cluster as the first resource cluster.
And the remaining resource calculating submodule 50903 is configured to calculate the resource size of the resource to be transmitted of the user and the resource size that can be borne by the first resource cluster, and determine the resource size of the remaining resource to be transmitted.
The second resource cluster determining submodule 50905 is configured to extract a resource cluster on the second carrier according to the size of the remaining resource to be transmitted, and determine the resource cluster as the second resource cluster.
A carrying sub-module 50907, configured to carry, by using the first resource cluster and the second resource cluster, a resource to be transmitted of the user.
In a preferred embodiment of the present application, the system for scheduling multiple clusters of resources in an uplink shared channel may further include:
a user deleting module 511, configured to delete the user that has been allocated to the resource cluster from the user list.
For the system embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. 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 terminal that comprises the element.
The foregoing describes in detail a method for scheduling multiple clusters of resources in an uplink shared channel and a system for scheduling multiple clusters of resources in an uplink shared channel, which are provided by the present application, and specific examples are applied in the present application to explain the principles and embodiments of the present application, and the descriptions of the foregoing embodiments are only used to help understand the method and core ideas of the present application. Meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. A method for scheduling multiple clusters of resources in an uplink shared channel is characterized by comprising the following steps:
counting users needing to be allocated with uplink resources to generate a user list of an uplink shared channel;
respectively calculating the carrier priority of each user on different carriers in the user list, and determining a first carrier and a second carrier corresponding to each user, wherein the carrier priority of the first carrier is higher than that of the second carrier;
extracting a user with the highest scheduling priority from the user list, and acquiring a first carrier of the user;
judging whether the resource cluster of the first carrier can bear the resource to be transmitted of the user, when the resource cluster of the first carrier can bear the resource to be transmitted of the user, allocating the resource cluster of the first carrier to the user, and adopting the resource cluster of the first carrier to bear the resource to be transmitted of the user, wherein the resource cluster is formed by continuous uplink resources on the carrier;
when the resource cluster of the first carrier cannot bear the resource to be transmitted of the user, acquiring a second carrier corresponding to the user, allocating the resource clusters on the first carrier and the second carrier to the user, and bearing the resource to be transmitted of the user through the resource clusters of the first carrier and the second carrier;
the calculating the carrier priority of each user on different carriers in the user list respectively and determining the first carrier and the second carrier corresponding to each user includes:
respectively acquiring broadband channel quality information of the user on each carrier and frequency spectrum resource information distributed to the user by the carrier;
calculating the ratio of the broadband channel quality indication information to the frequency spectrum resource information aiming at the same carrier wave;
counting the ratio of each carrier, and determining the carrier priority of each carrier corresponding to the user;
and determining the carrier with the largest ratio as the first carrier of the user, and determining the carrier with the second largest ratio as the second carrier.
2. The method according to claim 1, wherein the determining whether the resource cluster of the first carrier can carry the resource to be transmitted of the user, and when the resource cluster of the first carrier can carry the resource to be transmitted of the user, allocating the resource cluster of the first carrier to the user, and using the resource cluster of the first carrier to carry the resource to be transmitted of the user comprises:
extracting a resource cluster with the maximum transmission capacity on the first carrier;
judging whether the resource cluster with the maximum transmission capacity can bear the resources to be transmitted of the user;
when the resource cluster with the maximum transmission capacity can bear the resources to be transmitted of the user, allocating the resource cluster with the maximum transmission capacity to the user, and adopting the resource cluster with the maximum transmission capacity to bear the resources to be transmitted of the user;
when the resource cluster with the maximum transmission capacity can not bear the resource to be transmitted of the user, extracting two resource clusters with the maximum transmission capacity on the first carrier;
judging whether the two extracted resource clusters can bear the resources to be transmitted of the user or not;
and when the two extracted resource clusters can bear the resources to be transmitted of the user, allocating the two extracted resource clusters to the user, and adopting the two resource clusters to bear the resources to be transmitted of the user.
3. The method according to claim 2, wherein the allocating the extracted two resource clusters to the user, and using the two resource clusters to carry the resources to be transmitted of the user comprises:
calculating the resource size of the resource to be transmitted of the user;
determining the length of a resource cluster bearing the resources to be transmitted by adopting the resource size of the resources to be transmitted;
extracting two resource clusters of the first carrier according to the determined length;
and bearing the resources to be transmitted of the user through the two extracted resource clusters.
4. The method according to claim 1, wherein the allocating the resource clusters on the first carrier and the second carrier to the user and carrying the resources to be transmitted of the user through the resource clusters of the first carrier and the second carrier comprises:
extracting a resource cluster with the maximum transmission capacity on the first carrier, and determining the resource cluster as a first resource cluster;
respectively calculating the resource size of the resource to be transmitted of the user and the resource size capable of being borne by the first resource cluster, and determining the resource size of the remaining resource to be transmitted;
extracting a resource cluster on the second carrier according to the size of the resource of the remaining resource to be transmitted, and determining the resource cluster as a second resource cluster;
and bearing the resources to be transmitted of the user through the first resource cluster and the second resource cluster.
5. The method of claim 1, further comprising:
deleting the users that have been allocated to the resource cluster from the user list;
and recalculating the carrier wave priorities of the rest users in the user list on different carrier waves, and continuously allocating uplink resources to the user with the highest scheduling priority in the rest users.
6. A system for scheduling multiple clusters of resources in an uplink shared channel, comprising:
the user list generating module is used for counting the users needing to be allocated with the uplink resources and generating a user list of the uplink shared channel;
the calculating module is used for respectively calculating the carrier priority of each user in the user list on different carriers and determining a first carrier and a second carrier corresponding to each user, wherein the carrier priority of the first carrier is higher than that of the second carrier;
a first obtaining module, configured to extract a user with a highest scheduling priority from the user list, and obtain a first carrier of the user;
the first judging module is used for judging whether the resource cluster of the first carrier can bear the resource to be transmitted of the user, when the resource cluster of the first carrier can bear the resource to be transmitted of the user, the resource cluster of the first carrier is allocated to the user, the resource to be transmitted of the user is borne by the resource cluster of the first carrier, and the resource cluster is formed by continuous uplink resources on the carrier;
a second obtaining module, configured to obtain a second carrier corresponding to the user when the resource cluster of the first carrier cannot bear the resource to be transmitted of the user, allocate the resource clusters on the first carrier and the second carrier to the user, and bear the resource to be transmitted of the user through the resource clusters of the first carrier and the second carrier;
the calculation module comprises:
the information acquisition submodule is used for respectively acquiring the broadband channel quality information of the user on each carrier and the frequency spectrum resource information distributed to the user by the carrier;
the calculating submodule is used for calculating the ratio of the broadband channel quality indication information to the frequency spectrum resource information aiming at the same carrier wave;
the carrier priority determining submodule is used for counting the ratio of each carrier and determining the carrier priority of each carrier corresponding to the user;
and the carrier determining submodule is used for determining the carrier with the largest ratio as the first carrier of the user and determining the carrier with the second largest ratio as the second carrier.
7. The system of claim 6, wherein the first determining module comprises:
a first extraction submodule, configured to extract a resource cluster with a largest transmission capacity on the first carrier;
the first judging submodule is used for judging whether the resource cluster with the maximum transmission capacity can bear the resource to be transmitted of the user;
the first allocating sub-module is configured to allocate the resource cluster with the largest transmission capacity to the user when the resource cluster with the largest transmission capacity can carry the resource to be transmitted of the user, and use the resource cluster with the largest transmission capacity to carry the resource to be transmitted of the user;
a second extraction submodule, configured to extract two resource clusters with the largest transmission capacity on the first carrier when the resource cluster with the largest transmission capacity cannot bear the resource to be transmitted of the user;
the second judgment submodule is used for judging whether the two extracted resource clusters can bear the resources to be transmitted of the user or not;
and the second allocating submodule is used for allocating the two extracted resource clusters to the user when the two extracted resource clusters can bear the resources to be transmitted of the user, and adopting the two resource clusters to bear the resources to be transmitted of the user.
8. The system of claim 7, wherein the second allocation submodule comprises:
the resource calculation unit is used for calculating the resource size of the resource to be transmitted of the user;
a resource length determining unit, configured to determine, by using the resource size of the resource to be transmitted, a length of a resource cluster that carries the resource to be transmitted;
a resource cluster extracting unit, configured to extract two resource clusters of the first carrier according to the determined length;
and the bearing unit is used for bearing the resources to be transmitted of the user through the two extracted resource clusters.
9. The system of claim 6, wherein the second obtaining module comprises:
a first resource cluster determining submodule, configured to extract a resource cluster with the largest transmission capacity on the first carrier, and determine the resource cluster as a first resource cluster;
the residual resource calculation sub-module is used for calculating the resource size of the resource to be transmitted of the user and the resource size capable of being borne by the first resource cluster respectively and determining the resource size of the residual resource to be transmitted;
a second resource cluster determining submodule, configured to extract a resource cluster on the second carrier according to the size of the resource of the remaining resource to be transmitted, and determine the resource cluster as a second resource cluster;
and the bearing sub-module is used for bearing the resources to be transmitted of the user through the first resource cluster and the second resource cluster.
10. The system of claim 6, further comprising:
and the user deleting module is used for deleting the users which are distributed to the resource cluster from the user list.
CN201510646609.0A 2015-10-08 2015-10-08 Method and system for scheduling multi-cluster resources in uplink shared channel Active CN106572536B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510646609.0A CN106572536B (en) 2015-10-08 2015-10-08 Method and system for scheduling multi-cluster resources in uplink shared channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510646609.0A CN106572536B (en) 2015-10-08 2015-10-08 Method and system for scheduling multi-cluster resources in uplink shared channel

Publications (2)

Publication Number Publication Date
CN106572536A CN106572536A (en) 2017-04-19
CN106572536B true CN106572536B (en) 2020-04-17

Family

ID=58506542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510646609.0A Active CN106572536B (en) 2015-10-08 2015-10-08 Method and system for scheduling multi-cluster resources in uplink shared channel

Country Status (1)

Country Link
CN (1) CN106572536B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102543090B1 (en) * 2018-01-08 2023-06-14 삼성전자주식회사 Apparatus and method for allocating resources in wireless communication system
CN110708757B (en) * 2018-07-10 2022-07-26 成都鼎桥通信技术有限公司 Uplink main and auxiliary carrier user scheduling method and device
CN110831221B (en) * 2018-08-14 2021-06-25 大唐移动通信设备有限公司 Data processing method and device for base station

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101877906A (en) * 2010-05-19 2010-11-03 中兴通讯股份有限公司 Method and device for configuring transmitted power
CN102612093A (en) * 2012-03-30 2012-07-25 西安交通大学 Carrier-aggregation-based method for scheduling upstream cross-layer resources in LTE-Advanced system
CN103369684A (en) * 2013-07-18 2013-10-23 北京北方烽火科技有限公司 Resource scheduling method and device based on carrier aggregation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8254328B2 (en) * 2007-12-17 2012-08-28 Nec Corporation Scheduling method for multi-user MIMO in which resource blocks are allocated based on priorities

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101877906A (en) * 2010-05-19 2010-11-03 中兴通讯股份有限公司 Method and device for configuring transmitted power
CN102612093A (en) * 2012-03-30 2012-07-25 西安交通大学 Carrier-aggregation-based method for scheduling upstream cross-layer resources in LTE-Advanced system
CN103369684A (en) * 2013-07-18 2013-10-23 北京北方烽火科技有限公司 Resource scheduling method and device based on carrier aggregation

Also Published As

Publication number Publication date
CN106572536A (en) 2017-04-19

Similar Documents

Publication Publication Date Title
US11337244B2 (en) Scheduling subband allocation method and apparatus, and device and readable storage medium
US8031670B2 (en) Systems and methods for selecting the size of a control region of a downlink subframe
KR101228052B1 (en) Resource allocation method, identification method, radio communication system, base station, mobile station, and recording medium
KR101636761B1 (en) Search space arrangement for control channel
CA2886245C (en) Control channel detection method and user equipment
CN108270514A (en) The determining method and device of PDSCH resources, terminal, base station
CN108111270A (en) Pilot signal sending, receiving method and device
CN104995948B (en) Data transmission method, base station and user equipment
JP2020504504A (en) Information transmission method, network device and terminal device
CN108834216B (en) Resource scheduling method and device
CN107113874B (en) Base station, user terminal and data transmission method
CN107864479B (en) Method and equipment used in UE (user Equipment) and base station for exempting from grant
CN102469604B (en) Method and device for distributing resource
US10581574B2 (en) Data transmission method, and apparatus
CN106572536B (en) Method and system for scheduling multi-cluster resources in uplink shared channel
KR101411732B1 (en) Resource allocation
JP7092897B2 (en) Time-frequency resource allocation method and equipment
CN108370558B (en) Information source determining method, resource allocation method and device
CN110391889B (en) Method and device for determining time slot format
CN108834432A (en) Upstream data sending and receiving methods, user equipment and access network equipment
CN110708141B (en) Data transmission method and device and micro base station
CN112039642B (en) PUCCH resource allocation method and base station
KR101210115B1 (en) Method and device for allocationg frequency resource block in uplink sc-fdma system
CN111988860A (en) Scheduling method and device for super cell, centralized scheduler and distributed scheduler
CN116017749B (en) Terminal scheduling method, device, equipment and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant