CN102076102B - Method and system for scheduling resources - Google Patents
Method and system for scheduling resources Download PDFInfo
- Publication number
- CN102076102B CN102076102B CN201110036276.1A CN201110036276A CN102076102B CN 102076102 B CN102076102 B CN 102076102B CN 201110036276 A CN201110036276 A CN 201110036276A CN 102076102 B CN102076102 B CN 102076102B
- Authority
- CN
- China
- Prior art keywords
- scheduling
- signaling
- information
- scheduling signaling
- scheduled
- 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
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method and system for scheduling resources, which is used for scheduling the resources of multiple sub-frames by same scheduling signaling. The method provided by the invention comprises the following steps: determining the resources of multiple sub-frames simultaneously scheduled by the scheduling signaling, wherein the scheduling signaling is used for informing user equipment (UE) of information on transmission resources which are allocated to the UE; and informing the UE of information on the resources of the multiple sub-frames simultaneously scheduled by the scheduling signaling, and sending the scheduling signaling to the UE.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a resource scheduling method and system.
Background
A Long Term Evolution (LTE) system adopts a fast scheduling technique based on a 1 millisecond (ms) subframe length, and improves the spectrum efficiency of the system through a link adaptation and a Hybrid automatic repeat request (HARQ) technique.
However, when the conventional fast scheduling method of the LTE system is applied to an indoor or hot spot scene, since a User Equipment (UE) has a slow moving speed, a slow channel fading and a strong channel time correlation, a scheduling method with a period of 1ms has a relatively longer scheduling period, which does not bring time domain diversity gain, but requires a network side to perform scheduling calculation more frequently, requires more scheduling signaling overhead, and performs scheduling processing more frequently on the UE side.
In the frame structure of the existing LTE system, each radio frame includes 10 subframes, each subframe is 1ms, and the total time is 10 ms; for a Time Division Duplex (TDD) system, a 1 frame can be divided into 2 fields, each field for 5 ms. Based on the frame structure, in the existing LTE system, the scheduling algorithm of the base station can be divided into dynamic scheduling, semi-persistent scheduling, and persistent scheduling.
The main flow of the dynamic scheduling algorithm comprises the following steps: the base station obtains user information to be scheduled, wherein the user information comprises: user data information, user service information, user channel information, and the like. According to the user channel information, allocating resources for the users according to a certain priority queuing algorithm; according to the link adaptation technique, a transmission mode is selected for a user, and a transport block size, a transmission power, etc. are configured. After the scheduler finishes scheduling, a scheduling signaling is sent to a user through a Physical Downlink Control Channel (PDCCH) Channel, and the Physical layer performs precoding and data transmission according to the scheduling signaling. For the LTE system, dynamic scheduling takes a subframe as a unit, one transport block every 1ms, and sends scheduling signaling to a user.
In order to reduce the signaling overhead and increase the system capacity, for services with a periodic packet arrival time and a substantially constant packet size for a period of time, such as Voice over Internet Protocol (VoIP) services, persistent scheduling or semi-persistent scheduling may be used. Taking VoIP service as an example, semi-persistent scheduling pre-allocates resources for initial transmission and retransmission of subsequent data packets at each state transition point according to the characteristic that the arrival periodicity of VoIP data packets and the size of data packets are basically the same, and sends scheduling signaling only when the active period and the silent period are switched by using the characteristic that the arrival intervals of VoIP packet packets are different, the active period performs persistent scheduling, and the silent period performs dynamic scheduling, which are called semi-persistent scheduling in combination.
The method for dynamically scheduling with the period of 1ms is very suitable for service scenes with high moving speed, large data bandwidth demand and strong burstiness. Under the scene, the channel time diversity gain can be obtained through rapid scheduling, and the spectrum efficiency is improved. Moreover, due to the strong burst characteristic of the service and the large bandwidth requirement, the user can obtain more resources through one-time scheduling, the overhead of the scheduling signaling is small, and the scheduling efficiency is high.
The semi-persistent scheduling method is generally only suitable for services with periodicity in the arrival time of data packets similar to VoIP and small data packets, can effectively reduce the scheduling overhead, and meets the QoS requirement with strong service real-time performance.
As shown in fig. 1, for scheduling downlink subframes of an LTE system, the first 1 to 3 symbols of each subframe may be configured to be a control channel region (referred to as a control region for short) for transmitting a scheduling signaling for a UE, and the following symbols are data channel regions (referred to as data regions for short) for transmitting user data. The existing dynamic scheduling method is to schedule users in units of subframes in downlink, and scheduling information is sent in a control area of the subframe. As shown in fig. 2, the uplink also schedules users in units of subframes, the scheduling information is transmitted in the downlink control region or the data channel region, and if the number of the downlink subframe for transmitting the scheduling information is N, the number of the uplink subframe for transmitting user data indicated by the scheduling information is N + 4.
In summary, for indoor and hot spot scene data services, the scheduling method with 1ms as the cycle in the prior art is relatively longer in scheduling cycle, which does not bring time domain diversity gain, but requires more frequent scheduling calculation, more scheduling signaling overhead and more frequent scheduling processing at the UE side. Although the semi-persistent scheduling method can improve the scheduling efficiency and save the scheduling overhead, it cannot meet the requirements of large bandwidth demand and strong burstiness of data services.
Disclosure of Invention
The embodiment of the invention provides a resource scheduling method and a resource scheduling system, which are used for realizing resource scheduling of a plurality of subframes through the same scheduling signaling and reducing the scheduling overhead.
The embodiment of the invention also provides a data transmission method and equipment, which are used for reducing the scheduling processing of the UE side, so that the UE does not need to read the scheduling signaling in each subframe.
The resource scheduling method provided by the embodiment of the invention comprises the following steps:
determining a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling, wherein the scheduling signaling is used for notifying information of transmission resources allocated to UE to the UE;
and informing the user equipment UE of the information of the plurality of subframe resources simultaneously scheduled by the scheduling signaling, and sending the scheduling signaling to the UE.
The data transmission method provided by the embodiment of the invention comprises the following steps:
user Equipment (UE) acquires information of a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling;
and the user equipment UE receives a scheduling signaling sent by a network side, and transmits data by using a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling.
The resource scheduling system provided by the embodiment of the invention comprises:
a subframe resource determining unit, configured to determine a plurality of subframe resources that are scheduled by a scheduling signaling at the same time, where the scheduling signaling is configured to notify information of transmission resources allocated to a UE to the UE;
and the notification unit is used for notifying the user equipment UE of the information of the plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, and sending the scheduling signaling to the UE.
An embodiment of the present invention provides a data transmission device, including:
a subframe resource information obtaining unit, configured to obtain information of multiple subframe resources scheduled by a scheduling signaling at the same time;
and the scheduling signaling receiving and processing unit is used for receiving the scheduling signaling sent by the network side and transmitting data by using a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling.
The communication system provided by the embodiment of the invention comprises:
the network side equipment is used for determining a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, wherein the scheduling signaling is used for notifying the UE of the information of the transmission resources distributed for the UE; notifying information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling to User Equipment (UE), and sending the scheduling signaling to the UE;
the user equipment UE is used for acquiring the information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, receiving the scheduling signaling sent by the network side equipment, and transmitting data by utilizing the plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling.
The embodiment of the invention determines a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling, wherein the scheduling signaling is used for notifying the UE of the information of transmission resources distributed for the UE; the method and the device have the advantages that the information of the multiple subframe resources which are simultaneously scheduled by the scheduling signaling is notified to the UE, and the scheduling signaling is sent to the UE, so that the scheme of scheduling the multiple subframe resources through the same scheduling signaling is realized, the scheduling overhead can be reduced and the equipment realization complexity can be reduced in an indoor hot-spot data service scene.
In the embodiment of the invention, User Equipment (UE) acquires information of a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling; the user equipment UE receives the scheduling signaling sent by the network side, and transmits data by using a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling, so that the scheduling processing of the UE side is reduced, and the UE does not need to read the scheduling signaling in each subframe.
Drawings
Fig. 1 is a schematic diagram of downlink subframe scheduling of an LTE system;
fig. 2 is a schematic diagram of scheduling an uplink subframe of an LTE system;
fig. 3 is a schematic diagram illustrating a multi-subframe scheduling principle according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a resource scheduling method according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating formats of an uplink scheduling command and a downlink scheduling command in a table one according to the embodiment of the present invention;
fig. 6 is a schematic diagram illustrating formats of an uplink scheduling command and a downlink scheduling command in a table one according to the embodiment of the present invention;
FIG. 7 is a diagram illustrating a format of a scheduling command in Table two according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating a format of a scheduling command in Table two according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating a format of a scheduling command in Table III according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a resource scheduling system according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a resource scheduling method and a resource scheduling system, which are used for realizing resource scheduling of a plurality of subframes through the same scheduling signaling and reducing the scheduling overhead.
The embodiment of the invention also provides a data transmission method and equipment, which are used for reducing the scheduling processing of the UE side, so that the UE does not need to read the scheduling signaling in each subframe.
The technical scheme provided by the embodiment of the invention can be applied to indoor and hot spot application scenes in an LTE system, and can flexibly configure the scheduling cycle length according to needs, thereby achieving the purpose of saving the scheduling overhead.
According to the technical scheme provided by the embodiment of the invention, in order to be compatible with the existing LTE protocol as far as possible, the number of the subframes acted by single scheduling is indicated through the configuration information, and further, the number of the subframes acted by each scheduling can be flexibly selected according to different service and user characteristic configurations.
The multi-subframe scheduling principle provided in the embodiment of the present invention indicates resources of multiple subframes for a single scheduling signaling, that is, scheduling information of multiple subframes is the same and is indicated by the same scheduling signaling, as shown in fig. 3.
Referring to fig. 4, a resource scheduling method provided in the embodiment of the present invention includes the steps of:
s101, determining a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling, wherein the scheduling signaling is used for notifying the UE of information of transmission resources allocated to the UE.
S102, notifying information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling to the UE, and sending the scheduling signaling to the UE.
Preferably, the information of the plurality of subframe resources scheduled by the scheduling signaling at the same time includes:
information of a plurality of subframe resources scheduled simultaneously by the uplink scheduling signaling, and/or information of a plurality of subframe resources scheduled simultaneously by the downlink scheduling signaling. The plurality of subframe resources scheduled by the uplink scheduling signaling at the same time and the plurality of subframe resources scheduled by the downlink scheduling signaling at the same time may be the same or different.
For example, referring to fig. 3, if the scheduling information of the control region in a certain subframe indicates resources of 4 subframes, the information of the multiple subframe resources scheduled by the scheduling signaling at the same time may be 4, that is, the subframe acted by the same scheduling signaling includes consecutive 4 subframes.
The information of the plurality of subframe resources scheduled by the scheduling signaling at the same time can be notified to the user equipment UE through the scheduling signaling.
Or, the notifying the information of the plurality of subframe resources scheduled by the scheduling signaling at the same time to the user equipment UE includes:
notifying information of a plurality of subframe resources simultaneously scheduled by a scheduling signaling to User Equipment (UE) through Radio Resource Control (RRC) signaling; or,
notifying information of a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling to User Equipment (UE) through system broadcast information; or,
notifying information of a plurality of subframe resources scheduled by a scheduling signaling at the same time to User Equipment (UE) through a Media Access Control (MAC) signaling; or,
and informing the user equipment UE of the information of the plurality of subframe resources simultaneously scheduled by the scheduling signaling through RRC signaling, and informing the UE whether to turn on a switch for continuous scheduling through MAC signaling, wherein when the MAC signaling indicates to turn on the switch for continuous scheduling, the UE transmits data according to the information of the plurality of subframe resources simultaneously scheduled by the scheduling signaling indicated by the RRC signaling.
Preferably, the method further comprises:
and periodically updating a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, and informing the User Equipment (UE) of the plurality of subframe resource information which are simultaneously scheduled by the updated scheduling signaling.
Correspondingly, on the UE side, a data transmission method provided in the embodiments of the present invention includes:
user Equipment (UE) acquires information of a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling;
and the user equipment UE receives a scheduling signaling sent by a network side, and transmits data by using a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling. That is, in the plurality of subframes scheduled by the scheduling signaling, the scheduling information only needs to be read once, and the scheduling information of each subframe does not need to be read.
Preferably, the method further comprises:
the UE determines whether a switch for continuous scheduling is started or not through Media Access Control (MAC) signaling;
then, the UE receives a scheduling signaling sent by a network side, and transmits data by using a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling, including:
and the user equipment UE receives a scheduling signaling sent by a network side, and transmits data by utilizing a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling when a switch for continuous scheduling is started.
Therefore, in the embodiment of the present invention, in order to implement persistent scheduling of multiple subframes, it is necessary to notify the UE of the duration of single scheduling through a certain signaling, that is, to notify the UE of information of multiple subframe resources that are scheduled by one scheduling signaling at the same time, and specific notification methods may be divided into 5 types, including: the method aims at the indication of single scheduling signaling, the indication method of RRC signaling of a user, the indication method of broadcast information of a cell, the indication method of MAC signaling of the user and the method of matching with the control of an MAC signaling switch for the RRC signaling configuration of the user.
Specific examples are given below for these 5 notification methods, respectively.
In a first embodiment, when information of multiple subframe resources scheduled by a scheduling signaling simultaneously is indicated based on a single scheduling signaling, a resource scheduling method includes:
step one, a base station determines the time length acted by single scheduling, namely the number of a plurality of sub-frames scheduled by the same scheduling signaling according to the information of the quality of service (QoS) of a user and the data volume to be scheduled.
For example, assuming that the maximum number of persistent subframes allowed by the system is Nmax, the amount of data to be scheduled is B, and the number of transmission bits of a single subframe corresponding to the QoS reported by the user is M, the number of subframes acted by the scheduling may be:
N＝min(Nmax，B/M)
step two, the base station sends a scheduling signaling to the UE, wherein, in order to implement the scheduling information indicating multiple subframes for one-time scheduling signaling, in the scheduling signaling, new scope information (for example, 3-bit indication information) is added for indicating the number of subframes acted by the scheduling signaling on the uplink or the downlink, and the subframes include subframes which are scheduled to act according to the existing rule and a plurality of subframes which are continuous behind the subframes.
3 bits of information, the maximum number of subframes that can be indicated can be 8.
Step three, the UE reads the scheduling signaling to obtain the number of the subframes acted by the scheduling signaling and other information (namely, the scheduling information in the prior art can refer to a 3GPP protocol specifically, and the information content mainly comprises a transmission format, allocated resources and HARQ (hybrid automatic repeat request) information).
And step four, the UE sends or receives a plurality of transmission blocks from the first subframe acted by the scheduling signaling according to the number of the subframes indicated by the scheduling signaling and the same scheduling configuration information indicated by the scheduling signaling in each subframe.
That is, the UE does not read the scheduling information on the subsequent subframes acted on by the scheduling signaling except the first subframe acted on by the scheduling signaling.
In a second embodiment, when information of multiple subframe resources scheduled by a scheduling signaling is indicated based on Radio Resource Control (RRC) signaling of a single user, a resource scheduling method includes:
step one, after UE randomly accesses a system, a network side indicates the acting time lengths of uplink scheduling and downlink scheduling of the UE through RRC signaling, namely the RRC signaling indicates the information of a plurality of subframe resources simultaneously scheduled by the uplink scheduling signaling and the information of a plurality of subframe resources simultaneously scheduled by the downlink scheduling signaling.
The specific form of RRC signaling, for example: an optional field may be added in an RRC connection Reconfiguration (RRCConnection Reconfiguration) signaling, and when the optional field does not occur, default uplink scheduling and downlink scheduling are valid only in one currently indicated subframe; when the optional field occurs, the optional field indicates information of a plurality of subframe resources (e.g., the number of subframes) scheduled by the uplink scheduling signaling at the same time and/or information of a plurality of subframe resources (e.g., the number of subframes) scheduled by the downlink scheduling signaling at the same time. The information of the plurality of subframe resources simultaneously scheduled by the uplink scheduling signaling and the information of the plurality of subframe resources simultaneously scheduled by the downlink scheduling signaling may be indicated by different domains respectively, or may be indicated by one domain in a unified manner. In the case of using one field for unified indication, only the actual number of consecutive subframes may be indicated without indicating the uplink and the downlink, or the number of consecutive subframes for the uplink and the downlink may be indicated separately for different links.
For example, in the RRC Connection Reconfiguration signaling, two fields are added to the MAC Main configuration (MAC-Main configuration) sub-field of the radio resource configuration Dedicated (radio resource configuration specified) field: an uplink Persistent Subframe (ul-Persistent-Subframe) field and a downlink Persistent Subframe (d1-Persistent-Subframe) field, each of which has a length of 3 bits, respectively indicate information of a plurality of Subframe resources simultaneously scheduled by uplink scheduling signaling and information of a plurality of Subframe resources simultaneously scheduled by downlink scheduling signaling.
That is, the RRC signaling may respectively indicate, by 3 bits, information of a plurality of subframe resources that are scheduled by the uplink scheduling signaling at the same time and information of a plurality of subframe resources that are scheduled by the downlink scheduling signaling at the same time, so that the maximum duration of the uplink scheduling and the downlink scheduling may be 8 subframes.
And step two, the base station sends a scheduling signaling to the UE, and the sending method is the same as the sending method specified in the existing LTE system.
And step three, the UE receives the scheduling signaling, and sends data according to the information of the plurality of subframe resources which are simultaneously scheduled by the uplink scheduling signaling configured by the RRC signaling, or receives data according to the information of the plurality of subframe resources which are simultaneously scheduled by the downlink scheduling signaling configured by the RRC signaling. The method is the same as the fourth step in the first embodiment.
And step four, the base station periodically determines a scheduling period suitable for the UE according to the QoS characteristics of the user and the data amount information to be scheduled, namely periodically updates a plurality of subframe resources simultaneously scheduled by the scheduling signaling, and if the plurality of subframe resources simultaneously scheduled by the updated scheduling signaling are different from the plurality of subframe resources simultaneously scheduled by the currently adopted scheduling signaling, the base station can inform the UE of the plurality of subframe resource information simultaneously scheduled by the updated scheduling signaling through the RRC signaling.
And step five, returning to the step two of the embodiment to continue executing when the scheduling is needed again.
When the system broadcast information indicates the information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, the resource scheduling method comprises the following steps:
step one, a base station determines a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling.
Specifically, the base station may configure a single scheduling action period suitable for the local cell according to the service characteristics of the served cell, or may configure a single scheduling action period according to an empirical value by a network manager and a configurator.
And step two, the cell broadcasts the single scheduling action period of the uplink and the downlink of the cell through system broadcast information.
For example, single scheduling active periods of the uplink and downlink of the own cell may be indicated by 3-bit information, respectively, and the single scheduling active time may include 1 to 8 subframes.
And step three, reading the broadcast information after the UE is started to obtain the number of the subframes acted by the single scheduling of the uplink and the downlink of the cell.
And step four, the base station sends the scheduling signaling to the UE, and the sending method is the same as the sending method specified in the existing LTE system.
And step five, the UE receives the scheduling signaling, and sends data according to the information of the plurality of subframe resources scheduled by the uplink scheduling signaling indicated in the broadcast information, or receives data according to the information of the plurality of subframe resources scheduled by the downlink scheduling signaling indicated in the broadcast information. The method is the same as the fourth step in the first embodiment.
In this embodiment, the multiple subframe resources simultaneously scheduled by the scheduling signaling may also be periodically updated, and if the multiple subframe resources simultaneously scheduled by the updated scheduling signaling are different from the multiple subframe resources simultaneously scheduled by the currently adopted scheduling signaling, the multiple subframe resource information simultaneously scheduled by the updated scheduling signaling may be notified to the user equipment UE through the broadcast information.
In the fourth embodiment, when the MAC signaling of a single user indicates information of multiple subframe resources scheduled by the scheduling signaling at the same time, the resource scheduling method includes:
step one, after UE randomly accesses a system, a network side indicates the acting time lengths of uplink scheduling and downlink scheduling of the UE through Media Access Control (MAC) signaling.
For example, the time length of a single scheduling action may be indicated by 3 bits, and the maximum may be 8 subframes.
Alternatively, it can also be indicated by MAC signaling whether there is the same schedule within 8 subframes.
And step two, the base station sends a scheduling signaling to the UE, and the sending method is the same as the sending method specified in the existing LTE system.
And step three, the UE receives the scheduling signaling, and sends data according to the information of the plurality of subframe resources which are simultaneously scheduled by the uplink scheduling signaling configured by the MAC signaling, or receives data according to the information of the plurality of subframe resources which are simultaneously scheduled by the downlink scheduling signaling configured by the MAC signaling. The method is the same as the fourth step in the first embodiment.
And step four, the base station periodically determines a scheduling period suitable for the UE according to the QoS characteristics of the user and the data amount information to be scheduled, namely periodically updates a plurality of subframe resources simultaneously scheduled by the scheduling signaling, and if the plurality of subframe resources simultaneously scheduled by the updated scheduling signaling are different from the plurality of subframe resources simultaneously scheduled by the currently adopted scheduling signaling, the base station can inform the UE of the plurality of subframe resource information simultaneously scheduled by the updated scheduling signaling through the RRC signaling.
And step five, returning to the step two of the embodiment to continue executing when the scheduling is needed again.
In this embodiment, the length of the action time of the uplink scheduling and the downlink scheduling of the UE is indicated through the MAC signaling, and specifically there may be two following manners:
and in the first mode, the acting time lengths of uplink scheduling and downlink scheduling are respectively identified.
The specific identification of MAC signaling is shown in table one below:
watch 1
In table one, the uplink scheduling command is information for indicating multiple subframe resources scheduled by the uplink scheduling signaling at the same time, and the downlink scheduling command is information for indicating multiple subframe resources scheduled by the downlink scheduling signaling at the same time.
The formats of the uplink scheduling command and the downlink scheduling command, as shown in fig. 5, may be the number of Persistent subframes acted by the same scheduling signaling, where R is a reserved bit (bit), and a Persistent Subframe (Persistent Subframe) field is used to indicate the number of Persistent subframes acted by the same scheduling signaling, which is 3 bits in total, and may represent a maximum of 8 consecutive subframes.
Alternatively, the formats of the uplink scheduling command and the downlink scheduling command, as shown in fig. 6, may specifically indicate the scheduling situation of the subsequent 8 consecutive uplink or downlink subframes in the form of a bit map (Bitmap), where each bit corresponds to the consecutive uplink or downlink subframes that are sequentially backward from the subframe having the PDCCH scheduling signaling. For example, bit 1 represents that the subframe has the same scheduling information, bit 0 represents that there is no scheduling information, the first bit represents the scheduling condition of the first subframe acted by the scheduling signaling, the second bit represents the scheduling condition of the second subframe acted by the scheduling signaling, and so on.
And the second mode adopts a uniform format to mark the acting time lengths of uplink scheduling and downlink scheduling.
The specific identification of MAC signaling is shown in table two below:
| Index | LCID values |
| 00000 | CCCH |
| 00001-01010 | Identity of the logical channel |
| 01011-11010 | Reserved |
| 11011 | scheduling Command (Scheduling Command) |
| 11100 | UE Contention Resolution Identity |
| 11101 | Timing Advance Command |
| 11110 | DRX Command |
| 11111 | Padding |
Watch two
Table two, i.e. information for indicating a plurality of subframe resources scheduled by uplink scheduling signaling simultaneously, and/or information for indicating a plurality of subframe resources scheduled by downlink scheduling signaling simultaneously.
As shown in fig. 7, the format of the scheduling command may be the number of persistent subframes acted by the same scheduling signaling in uplink or downlink, where R is a reserved bit (bit), a persistent subframe (persistent subframe) field is used to indicate the number of persistent subframes acted by the same scheduling signaling, and 3 bits in total, which may represent a maximum of 8 consecutive subframes, and a U/D field is used to identify uplink or downlink.
Alternatively, as shown in fig. 8, the format of the scheduling command may also include information of a plurality of Subframe resources simultaneously scheduled by the uplink scheduling signaling and information of a plurality of Subframe resources simultaneously scheduled by the downlink scheduling signaling, where an uplink Persistent Subframe (UL Persistent Subframe) field is used for indicating information of a plurality of Subframe resources simultaneously scheduled by the uplink scheduling signaling, and a downlink Persistent Subframe (DL Persistent Subframe) field is used for indicating information of a plurality of Subframe resources simultaneously scheduled by the downlink scheduling signaling.
Or may identify the uplink or downlink with 1bit in the Bitmap.
Fifth, when configuring an MAC signaling switch based on RRC signaling of a single user and indicating information of multiple subframe resources scheduled by a scheduling signaling at the same time, the resource scheduling method includes:
step one, after UE randomly accesses a system, a network side indicates the acting time lengths of uplink scheduling and downlink scheduling of the UE through RRC signaling, namely the RRC signaling indicates the information of a plurality of subframe resources simultaneously scheduled by the uplink scheduling signaling and the information of a plurality of subframe resources simultaneously scheduled by the downlink scheduling signaling.
For example, the RRC signaling may respectively indicate information of a plurality of subframe resources scheduled by the uplink scheduling signaling and information of a plurality of subframe resources scheduled by the downlink scheduling signaling by 3 bits, so that the acting time length of the uplink scheduling and the downlink scheduling may be up to 8 subframes.
And step two, the base station controls whether the switch of the continuous scheduling is started or not through the MAC signaling according to the information such as the data volume and the like.
And the base station controls the switch of the continuous scheduling according to the data volume to be transmitted of the uplink and the downlink of the UE and the overall resource occupation condition of the base station. For example, when the base station resources are sufficient, if the amount of data to be transmitted in the downlink of the UE is large, the base station may turn on a downlink persistent scheduling switch; and when the downlink data volume to be transmitted of the UE is reduced or the transmission is finished, the base station closes the switch of the downlink continuous scheduling. The control of the switch of the uplink persistent scheduling is the same.
When the base station resources are insufficient, the priority, the service priority and the data volume of each UE need to be comprehensively considered to perform comprehensive control, for example, the UE and the service with higher priority preferentially obtain the opportunity of persistent scheduling under the condition of a large amount of data.
And step three, the base station sends a scheduling signaling to the UE, and the sending method is the same as the sending method specified in the existing LTE system.
And step four, the UE receives the scheduling signaling, and if the MAC signaling indicates that the persistent scheduling switch is started, the UE sends data according to the information of the plurality of subframe resources which are simultaneously scheduled by the uplink scheduling signaling configured by the RRC signaling, or receives data according to the information of the plurality of subframe resources which are simultaneously scheduled by the downlink scheduling signaling configured by the RRC signaling. The method is the same as the fourth step in the first embodiment. And if the MAC signaling indicates that the persistent scheduling switch is closed, transmitting data according to the scheduling process of the existing LTE system.
And step five, the base station periodically determines a scheduling period suitable for the UE according to the QoS characteristics of the user and the data amount information to be scheduled, namely periodically updates a plurality of subframe resources simultaneously scheduled by the scheduling signaling, and if the plurality of subframe resources simultaneously scheduled by the updated scheduling signaling are different from the plurality of subframe resources simultaneously scheduled by the currently adopted scheduling signaling, the base station can inform the UE of the plurality of subframe resource information simultaneously scheduled by the updated scheduling signaling through the RRC signaling.
And step six, when the dispatching is needed again, returning to the step two of the embodiment to continue the execution.
The special identifier of the MAC signaling is shown in table three below:
| Index | LCID values |
| 00000 | CCCH |
| 00001-01010 | Identity of the logical channel |
| 01011-11010 | Reserved |
| 11011 | scheduling Command (Scheduling Command) |
| 11100 | UE Contention Resolution Identity |
| 11101 | Timing Advance Command |
| 11110 | DRX Command |
| 11111 | Padding |
Watch III
And a Scheduling Command (Scheduling Command) in the third table, which is used for indicating whether the persistent Scheduling switch is turned on. For example, the format of the scheduling command may be persistent scheduling switches for controlling uplink and downlink respectively, as shown in fig. 9, where UL on indicates that the uplink persistent scheduling switch is on, UL off indicates that the uplink persistent scheduling switch is off, and DL on indicates that the downlink persistent scheduling switch is on, and DL off indicates that the downlink persistent scheduling switch is off. Of course, two bits may be set to indicate that one bit indicates whether the uplink persistent scheduling switch is turned on by 0 and 1, and the other bit indicates whether the downlink persistent scheduling switch is turned on by 0 and 1.
Referring to fig. 10, a resource scheduling system provided in an embodiment of the present invention includes:
a subframe resource determining unit 101, configured to determine a plurality of subframe resources scheduled by a scheduling signaling at the same time, where the scheduling signaling is used to notify information of transmission resources allocated to a UE to the UE.
A notifying unit 102, configured to notify the user equipment UE of information of multiple subframe resources scheduled by the scheduling signaling at the same time, and send the scheduling signaling to the UE.
Preferably, the notifying unit 102 is configured to notify the information of the plurality of subframe resources scheduled by the scheduling signaling of the UE at the same time, and includes:
information of a plurality of subframe resources scheduled simultaneously by the uplink scheduling signaling, and/or information of a plurality of subframe resources scheduled simultaneously by the downlink scheduling signaling.
Preferably, the notifying unit 102 includes information of a plurality of subframe resources scheduled by the scheduling signaling at the same time in the scheduling signaling sent to the UE.
Preferably, the notification unit 102 includes:
a subframe resource information notification unit 201, configured to notify, to a user equipment UE, information of a plurality of subframe resources scheduled by a scheduling signaling at the same time through a radio resource control RRC signaling; or, notifying the information of the plurality of subframe resources scheduled by the scheduling signaling at the same time to the user equipment UE through system broadcast information; or, through Media Access Control (MAC) signaling, notifying information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling to User Equipment (UE); or, through an RRC signaling, notifying the user equipment UE of information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, and notifying the UE whether to turn on a switch for persistent scheduling through an MAC signaling, wherein when the MAC signaling indicates to turn on the switch for persistent scheduling, the UE transmits data according to the information of the plurality of subframe resources which are simultaneously scheduled by the scheduling signaling indicated by the RRC signaling;
a scheduling signaling notification unit 202, configured to send scheduling signaling to the UE.
Preferably, the system further comprises:
an updating unit 103, configured to periodically update a plurality of subframe resources scheduled by the scheduling signaling at the same time;
the subframe resource information notifying unit 201 notifies the user equipment UE of the plurality of subframe resource information scheduled by the updated scheduling signaling at the same time.
Referring to fig. 11, a data transmission device provided in an embodiment of the present invention includes:
a subframe resource information obtaining unit 301, configured to obtain information of multiple subframe resources scheduled by a scheduling signaling at the same time;
a scheduling signaling receiving and processing unit 302, configured to receive a scheduling signaling sent by a network side, and transmit data by using multiple subframe resources scheduled by the scheduling signaling according to an indication of the scheduling signaling.
Preferably, the apparatus further comprises:
a determination switch unit 303, configured to determine whether a persistent scheduling switch is turned on through a media access control MAC signaling;
the scheduling signaling receiving and processing unit 302 receives a scheduling signaling sent by a network side, and when a switch for persistent scheduling is turned on, transmits data by using a plurality of subframe resources scheduled by the scheduling signaling according to an indication of the scheduling signaling.
The communication system provided by the embodiment of the invention comprises:
the network side equipment is used for determining a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, wherein the scheduling signaling is used for notifying the UE of the information of the transmission resources distributed for the UE; notifying information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling to User Equipment (UE), and sending the scheduling signaling to the UE;
the user equipment UE is used for acquiring the information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, receiving the scheduling signaling sent by the network side equipment, and transmitting data by utilizing the plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling.
In summary, the embodiment of the present invention employs a scheme for scheduling multiple subframe resources through a single scheduling signaling, which is suitable for an indoor hot-spot data service scenario, and can reduce scheduling overhead and reduce device implementation complexity.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention 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, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, 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 apparatus 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 apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (11)
1. A method for scheduling resources, the method comprising:
determining a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling, wherein the scheduling signaling is used for notifying information of transmission resources allocated to UE to the UE;
and informing the user equipment UE of the information of the plurality of subframe resources simultaneously scheduled by the scheduling signaling through RRC signaling, and informing the UE whether to turn on a switch for continuous scheduling through MAC signaling, wherein when the MAC signaling indicates to turn on the switch for continuous scheduling, the UE transmits data according to the information of the plurality of subframe resources simultaneously scheduled by the scheduling signaling indicated by the RRC signaling, and sends the scheduling signaling to the UE.
2. The method of claim 1, wherein the scheduling signaling information of the plurality of subframe resources scheduled simultaneously comprises:
information of a plurality of subframe resources scheduled simultaneously by the uplink scheduling signaling, and/or information of a plurality of subframe resources scheduled simultaneously by the downlink scheduling signaling.
3. The method of claim 2, wherein the information of the plurality of subframe resources scheduled by the scheduling signaling at the same time is notified to a User Equipment (UE) through the scheduling signaling.
4. The method of claim 2, further comprising:
and periodically updating a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, and informing the User Equipment (UE) of the plurality of subframe resource information which are simultaneously scheduled by the updated scheduling signaling.
5. A method of data transmission, the method comprising:
the method comprises the steps that User Equipment (UE) acquires information of a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling through RRC signaling;
the UE determines whether a switch for continuous scheduling is started or not through Media Access Control (MAC) signaling;
and the UE receives a scheduling signaling sent by a network side, and transmits data by utilizing a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling when a switch for continuous scheduling is turned on.
6. A system for scheduling resources, the system comprising:
a subframe resource determining unit, configured to determine a plurality of subframe resources that are scheduled by a scheduling signaling at the same time, where the scheduling signaling is configured to notify information of transmission resources allocated to a UE to the UE;
a notification unit comprising: a subframe resource information notification unit, configured to notify, through an RRC signaling, user equipment UE of information on a plurality of subframe resources scheduled by a scheduling signaling at the same time, and notify, through an MAC signaling, whether the UE turns on a switch for persistent scheduling, where, when the MAC signaling indicates to turn on the switch for persistent scheduling, the UE transmits data according to the information on the plurality of subframe resources scheduled by the scheduling signaling indicated by the RRC signaling at the same time; and the scheduling signaling notification unit is used for sending the scheduling signaling to the UE.
7. The system according to claim 6, wherein the subframe resource information notifying unit notifies information of a plurality of subframe resources scheduled simultaneously by scheduling signaling to a User Equipment (UE), comprising:
information of a plurality of subframe resources scheduled simultaneously by the uplink scheduling signaling, and/or information of a plurality of subframe resources scheduled simultaneously by the downlink scheduling signaling.
8. The system according to claim 7, wherein the scheduling signaling notification unit includes information on a plurality of subframe resources scheduled by the scheduling signaling at the same time in the scheduling signaling transmitted to the UE.
9. The system of claim 7, further comprising:
the updating unit is used for periodically updating a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling;
and the subframe resource information notification unit is used for notifying the plurality of subframe resource information which are simultaneously scheduled by the updated scheduling signaling to the user equipment UE.
10. A data transmission apparatus, characterized in that the apparatus comprises:
a subframe resource information obtaining unit, configured to obtain, through an RRC signaling, information of a plurality of subframe resources scheduled by a scheduling signaling at the same time;
the determining switch unit is used for determining whether a switch for continuous scheduling is started or not through Media Access Control (MAC) signaling;
and the scheduling signaling receiving and processing unit is used for receiving the scheduling signaling sent by the network side, and transmitting data by using a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling when the switch for continuous scheduling is turned on.
11. A communication system, the system comprising:
the network side equipment is used for determining a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, wherein the scheduling signaling is used for notifying the UE of the information of the transmission resources distributed for the UE; informing information of a plurality of subframe resources which are simultaneously scheduled by a scheduling signaling to User Equipment (UE) through Radio Resource Control (RRC) signaling, and informing whether the UE starts a switch for continuous scheduling through MAC signaling, wherein when the MAC signaling indicates to start the switch for continuous scheduling, the UE transmits data according to the information of the plurality of subframe resources which are simultaneously scheduled by the scheduling signaling indicated by the RRC signaling, and sends the scheduling signaling to the UE;
the UE is used for acquiring the information of a plurality of subframe resources which are simultaneously scheduled by the scheduling signaling, and the UE determines whether a switch for continuous scheduling is started or not through the Media Access Control (MAC) signaling; and the UE receives a scheduling signaling sent by a network side, and transmits data by utilizing a plurality of subframe resources scheduled by the scheduling signaling according to the indication of the scheduling signaling when a switch for continuous scheduling is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110036276.1A CN102076102B (en) | 2011-02-11 | 2011-02-11 | Method and system for scheduling resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110036276.1A CN102076102B (en) | 2011-02-11 | 2011-02-11 | Method and system for scheduling resources |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102076102A CN102076102A (en) | 2011-05-25 |
| CN102076102B true CN102076102B (en) | 2015-03-25 |
Family
ID=44034400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110036276.1A Active CN102076102B (en) | 2011-02-11 | 2011-02-11 | Method and system for scheduling resources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102076102B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110679193A (en) * | 2017-06-01 | 2020-01-10 | 中兴通讯股份有限公司 | Method and computing device for configuring resource scheduling |
| CN111867118B (en) * | 2019-04-30 | 2022-04-26 | 华为技术有限公司 | Resource scheduling method and communication device |
| CN114205914A (en) * | 2021-11-26 | 2022-03-18 | 山东浪潮科学研究院有限公司 | Uplink transmission scheduling method and system based on RRC message |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010133043A1 (en) * | 2009-05-22 | 2010-11-25 | 华为技术有限公司 | Method for dispatching multi sub-frames and the system, the terminal and the base station thereof |
| CN101932110A (en) * | 2009-06-19 | 2010-12-29 | 大唐移动通信设备有限公司 | Relay link resource scheduling method, system and device |
-
2011
- 2011-02-11 CN CN201110036276.1A patent/CN102076102B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010133043A1 (en) * | 2009-05-22 | 2010-11-25 | 华为技术有限公司 | Method for dispatching multi sub-frames and the system, the terminal and the base station thereof |
| CN101932110A (en) * | 2009-06-19 | 2010-12-29 | 大唐移动通信设备有限公司 | Relay link resource scheduling method, system and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102076102A (en) | 2011-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200383135A1 (en) | Method for random access in idle state and device | |
| CN108270536B (en) | Monitoring indication and monitoring method and device | |
| US10693613B2 (en) | Telecommunications apparatus and methods | |
| US9775064B2 (en) | Buffer state reporting method, system, and device | |
| CN108293257B (en) | Method and apparatus for transmitting and receiving scheduling request | |
| JP6386046B2 (en) | Communication terminal and method | |
| WO2018036433A1 (en) | Information transmitting and receiving methods and devices, base station, and terminal | |
| US8619617B2 (en) | Data transmission method, system and device in multi-carrier system | |
| US20160227517A1 (en) | Method for semi-persistent shared resource scheduling, and apparatus | |
| JP2016527838A (en) | Infrastructure device, wireless communication network and method | |
| JP6948404B2 (en) | System parameter set configuration method and equipment, and storage medium | |
| Huang et al. | Radio resource scheduling for narrowband Internet of Things systems: A performance study | |
| US10159109B2 (en) | System and method for supporting time-sensitive services in a communication network | |
| US10085293B2 (en) | Telecommunications apparatus and methods | |
| RU2764284C2 (en) | Method and device in radio communication network | |
| CN104349484A (en) | System information sending method, system information receiving method and device | |
| EP3606231B1 (en) | Scheduling-free transmission method and apparatus | |
| EP3143826A1 (en) | Terminal device, base station, wireless telecommunications system and methods for transitioning between two modes of operation | |
| JP2022517311A (en) | User device for transmitting UE support information | |
| KR101872771B1 (en) | Resource allocation in two domains | |
| CN113438717B (en) | Resource scheduling method, access network equipment and user equipment | |
| JP2024513196A (en) | Sidelink intermittent reception procedure | |
| CN102076102B (en) | Method and system for scheduling resources | |
| EP3544360A1 (en) | Contention based access channel signaling | |
| WO2017167270A1 (en) | Method of monitoring control channel, method of reporting tti length, and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210602 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |