CN106550457B

CN106550457B - A kind of resource allocation methods and device

Info

Publication number: CN106550457B
Application number: CN201510601276.XA
Authority: CN
Inventors: 沙秀斌; 邹伟; 戴谦; 戴博
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-09-18
Filing date: 2015-09-18
Publication date: 2019-06-07
Anticipated expiration: 2035-09-18
Also published as: CN106550457A; WO2016177162A1

Abstract

The invention discloses a kind of resource allocation methods and devices.Resource allocation methods in the present invention include: that base station receives the uplink scheduling request SR message that user equipment (UE) is sent, and include that ultralow time delay business indicates information in the SR message；Base station is that UE distributes uplink ultralow time delay resource according to the ultralow time delay business instruction information in SR message.The problem of present invention solves the UE in RRC connected state in request data transmission, and conventional SR message can not indicate ultralow time delay business demand information.

Description

Resource allocation method and device

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for resource allocation.

Background

The transmission delay of General Packet Radio Service (GPRS) is always an important Service index that is of interest to wireless network operators. With the rapid development of mobile internet applications, internet of things such as remote control, car networking, virtual reality, and related services have made higher requirements on GPRS transmission delay in a mobile network, that is, the GPRS ultra-low delay service becomes an important performance index in the 5th-generation mobile communication technology (abbreviated as 5G).

For the ultra-low delay service in 5G, the radio access network usually adopts a radio Transmission strategy of the ultra-low delay service, wherein a radio frame with a Transmission Time Interval (TTI) length less than 1 millisecond (i.e., a short TTI) is adopted for ultra-low delay data Transmission, and the above manner is an important means for shortening the radio Transmission delay. In the current Long Term Evolution (LTE) network, a User Equipment (UE) in a Radio Resource Control (RRC) connection state does not have uplink data to transmit, and an Evolved Node B (eNB) does not need to allocate uplink resources to the UE; when the UE transmits data from no data to data, the UE may Request uplink resources from the eNB by transmitting a Scheduling Request (SR) message; because the ultra-low latency service and the traditional service coexist in the wireless network, the conventional SR message can only indicate a data transmission request, and cannot indicate the requirement of data to be transmitted for latency, so how to request services with different latency requirements by the UE in the RRC connected state becomes a problem that needs to be solved at present.

Disclosure of Invention

In order to solve the above technical problem, the present invention provides a resource allocation method and apparatus, so as to solve the problem that when a UE in an RRC connected state requests data transmission, a conventional SR message cannot indicate ultra-low latency service requirement information.

In a first aspect, the present invention provides a resource allocation method, including:

a base station receives an uplink Scheduling Request (SR) message sent by User Equipment (UE), wherein the SR message comprises ultra-low delay service indication information;

and the base station allocates uplink ultra-low delay resources for the UE according to the ultra-low delay service indication information in the SR message.

In a first possible implementation manner of the first aspect, the ultra-low latency service indication information includes an indication that ultra-low latency data is to be transmitted, where the indication that ultra-low latency data is to be transmitted is used to indicate whether the UE currently has data of an ultra-low latency service to wait for transmission; the base station allocates uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, and the method comprises the following steps:

and when the ultra-low delay data to be transmitted is indicated as ultra-low delay service, the base station allocates uplink ultra-low delay resources for the UE.

In a second possible implementation manner of the first aspect, the ultra-low latency service indication information includes an ultra-low latency indication value; the base station allocates uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, and the method comprises the following steps:

the base station judges whether the Transmission Time Interval (TTI) capabilities supported by the base station and the UE are the same;

when the base station judges that the capabilities of the TTI supported by the base station and the UE are the same, allocating uplink ultra-low time delay resources of the TTI with the corresponding length according to the ultra-low time delay indicated value;

and when the base station judges that the TTI capabilities supported by the base station and the UE are different, preferentially distributing the uplink ultra-low delay resource of the TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation of the base station and the UE and the ultra-low delay indicated value.

According to a second possible implementation manner of the first aspect, in a third possible implementation manner, the ultra-low latency service indication information further includes an indication that ultra-low latency data is to be transmitted; the base station allocates uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, and the method comprises the following steps:

and when the ultra-low delay data is to be transmitted and indicated as ultra-low delay service, the base station allocates uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value.

According to the second or third possible implementation manner of the first aspect, in a fourth possible implementation manner, the ultra-low latency indicating value includes an ultra-low latency level and/or a cache data volume level of an ultra-low latency service; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

According to the first aspect, or any one of the first to third possible implementation manners of the first aspect, in a fifth possible implementation manner, before the receiving, by the base station, an uplink scheduling request SR message sent by user equipment UE, the method further includes:

the base station sends a Radio Resource Control (RRC) connection establishment message to the UE, the RRC connection establishment message is configured with resources used for the UE to send the SR message and SR cycles corresponding to the resources, the RRC connection establishment message is used for indicating the UE to send the SR message according to the configured resources and the SR cycles corresponding to the resources, and the SR cycles corresponding to the resources are configured into SR short cycles with the length less than 1 ms.

According to a fifth possible implementation manner of the first aspect, in a sixth possible implementation manner, the RRC connection setup message is further configured with a multi-carrier service, or a single-carrier service and a PUCCH format indication;

the SR message is carried by the corresponding extended PUCCH format selected by the UE according to the TTI capability supported by the base station and the UE and the content configured in the RRC connection establishment message, and the selected extended PUCCH format comprises a SR message indication value not less than 2 bits.

According to the first aspect, or any one of the first to third possible implementation manners of the first aspect, in a seventh possible implementation manner, before the receiving, by the base station, an uplink scheduling request SR message sent by user equipment UE, the method further includes:

the base station sends an RRC connection establishment message to the UE, wherein the RRC connection establishment message is configured with a plurality of PUCCHs, and is used for indicating the UE to select a corresponding PUCCH to send the SR message according to the resource type indicated by the SR message, wherein the first PUCCH is used for sending the SR message indicating uplink ultra-low delay resources, and the second PUCCH is used for sending the SR message indicating uplink non-ultra-low delay resources.

In a second aspect, the present invention provides a resource allocation method, including:

user Equipment (UE) sends an uplink Scheduling Request (SR) message to a base station, wherein the SR message comprises ultra-low delay service indication information and is used for indicating the base station to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message;

and the UE receives the uplink ultra-low time delay resource distributed by the base station.

In a first possible implementation manner of the second aspect, the ultra-low latency service indication information includes an ultra-low latency data to-be-transmitted indication, where the ultra-low latency data to-be-transmitted indication is used to indicate whether the UE currently has data of an ultra-low latency service to wait for transmission;

and the SR message is used for indicating the base station to allocate uplink ultra-low delay resources to the UE when the ultra-low delay data to be transmitted is indicated as ultra-low delay service.

In a second possible implementation manner of the second aspect, the ultra-low latency service indication information includes an ultra-low latency indication value;

the SR message is used for indicating the base station to allocate uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value when the base station and the UE support the same transmission time interval TTI capability; or,

and the SR message is used for indicating the base station to preferentially distribute uplink ultra-low delay resources of TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation of the base station and the UE and the ultra-low delay indicated value when the base station and the UE are determined to be different in supported TTI capability.

According to a second possible implementation manner of the second aspect, in a third possible implementation manner, the ultra-low latency service indication information further includes an indication that ultra-low latency data is to be transmitted;

and the SR message is used for indicating the base station to allocate uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value when the ultra-low delay data to be transmitted is indicated as ultra-low delay service.

According to a second possible implementation manner or a third possible implementation manner of the second aspect, in a fourth possible implementation manner, the ultra-low latency indicating value includes an ultra-low latency level and/or a cache data volume level of an ultra-low latency service; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

According to the second aspect and any one of the first to third possible implementation manners of the second aspect, in a fifth possible implementation manner, before the sending, by the UE, the uplink scheduling request SR message to the base station, the method further includes:

the UE receives a Radio Resource Control (RRC) connection establishment message sent by the base station, wherein resources used for the UE to send the SR message and SR cycles corresponding to the resources are configured in the RRC connection establishment message;

the method for transmitting the uplink Scheduling Request (SR) message to the base station by the User Equipment (UE) comprises the following steps:

and the UE sends the SR message according to the resource configured in the RRC connection establishment message and the SR period corresponding to the resource, wherein the SR period corresponding to the resource is configured to be an SR short period with the length less than 1 ms.

According to a fifth possible implementation manner of the second aspect, in a sixth possible implementation manner, the RRC connection establishment message is further configured with a multi-carrier service, or a single-carrier service and a PUCCH format indication;

after the UE receives the RRC message sent by the base station and before the UE sends the SR message to the base station, the method further includes:

and the UE selects a corresponding extended PUCCH format to carry the SR message according to the TTI capability supported by the base station and the UE and the content configured in the RRC connection establishment message, wherein the selected extended PUCCH format comprises an SR message indication value not less than 2 bits.

According to the second aspect and any one of the first to third possible implementation manners of the second aspect, in a seventh possible implementation manner, before the sending, by the UE, the uplink scheduling request SR message to the base station, the method further includes:

the UE receives an RRC connection establishment message sent by the base station, wherein the RRC connection establishment message is configured with a plurality of PUCCHs;

and the UE selects a corresponding PUCCH to transmit the SR message according to the resource type indicated by the SR message, wherein the first PUCCH is used for transmitting the SR message indicating uplink ultra-low delay resources, and the second PUCCH is used for transmitting the SR message indicating uplink non-ultra-low delay resources.

In a third aspect, the present invention provides a resource allocation method, including:

a base station sends a Radio Resource Control (RRC) connection establishment message to User Equipment (UE), wherein the RRC connection establishment message is configured with a corresponding relation between a Physical Uplink Control Channel (PUCCH) and a delay requirement indicated value, and is used for indicating the UE to select the corresponding PUCCH according to the determined delay requirement indicated value;

the base station receives the SR message sent by the UE through the selected PUCCH;

and the base station allocates uplink resources with corresponding length TTI for the UE according to the selected PUCCH, wherein the uplink resources comprise the uplink ultra-low time delay resources and the uplink non-ultra-low time delay resources.

In a fourth aspect, the present invention provides a resource allocation method, including:

user Equipment (UE) receives a Radio Resource Control (RRC) connection establishment message sent by a base station, wherein the RRC connection establishment message is configured with a corresponding relation between a Physical Uplink Control Channel (PUCCH) and a delay requirement indicated value;

the UE selects a corresponding PUCCH according to the determined delay requirement indicated value;

and the UE sends the SR message to the base station through the selected PUCCH, wherein the SR message is used for indicating the base station to allocate uplink resources with corresponding length TTI to the UE according to the selected PUCCH, and the uplink resources comprise the uplink ultra-low delay resources and uplink non-ultra-low delay resources.

In a fifth aspect, the present invention provides a resource allocation apparatus, provided in a base station, the resource allocation apparatus including:

the system comprises a receiving module, a Scheduling Request (SR) module and a scheduling request (resource scheduling) module, wherein the SR message comprises ultra-low delay service indication information;

and the allocation module is used for allocating uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message received by the receiving module.

In a first possible implementation manner of the fifth aspect, the ultra-low latency service indication information includes an ultra-low latency data to-be-transmitted indication, where the ultra-low latency data to-be-transmitted indication is used to indicate whether the UE currently has data of an ultra-low latency service to wait for transmission;

the allocation module is configured to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, where the allocating module is configured to:

and the distribution module distributes uplink ultra-low delay resources to the UE when the ultra-low delay data is to be transmitted and indicated as ultra-low delay service.

In a second possible implementation manner of the fifth aspect, the ultra-low latency service indication information includes an ultra-low latency indication value; the distribution module includes: a judging unit, configured to judge whether transmission time interval TTI capabilities supported by the base station and the UE are the same;

the allocation unit is used for allocating uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value when the judgment unit judges that the TTI capabilities supported by the base station and the UE are the same;

and the allocating unit is further configured to, when the determining unit determines that the TTI capabilities supported by the base station and the UE are different, preferentially allocate the uplink ultra-low delay resource of the TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation between the base station and the UE and the ultra-low delay indicated value.

According to a second possible implementation manner of the fifth aspect, in a third possible implementation manner, the ultra-low latency service indication information further includes an indication that ultra-low latency data is to be transmitted; the allocation module is configured to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, where the allocating module is configured to:

and when the ultra-low delay data is to be transmitted and indicated as ultra-low delay service, the allocation module allocates uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value.

According to the second or third possible implementation manner of the fifth aspect, in a fourth possible implementation manner, the ultra-low latency indicating value includes an ultra-low latency level and/or a cache data volume level of an ultra-low latency service; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

According to the fifth aspect or any one of the first to third possible implementation manners of the fifth aspect, in a fifth possible implementation manner, the resource allocation apparatus further includes: a sending module, configured to send a radio resource control, RRC, connection establishment message to the UE before the receiving module receives the SR message sent by the UE, where the RRC connection establishment message is configured with a resource used for the UE to send the SR message and an SR cycle corresponding to the resource, and the RRC connection establishment message is used to instruct the UE to send the SR message according to the configured resource and the SR cycle corresponding to the resource, where the SR cycle corresponding to the resource is configured to be an SR short cycle with a length less than 1 ms.

According to a fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner, the RRC connection establishment message is further configured with a multi-carrier service, or a single-carrier service and a PUCCH format indication;

According to the fifth aspect and any one of the first to third possible implementation manners of the fifth aspect, in a seventh possible implementation manner, the resource allocation apparatus further includes: a sending module, configured to send an RRC connection setup message to the UE before the receiving module receives the SR message sent by the UE, where the RRC connection setup message is configured with multiple PUCCHs, and the RRC connection setup message is used to instruct the UE to select a corresponding PUCCH to send the SR message according to a resource type indicated by the SR message, where a first PUCCH is used to send an SR message indicating uplink ultra-low latency resources, and a second PUCCH is used to send an SR message indicating uplink non-ultra-low latency resources.

In a sixth aspect, the present invention provides a resource allocation apparatus, disposed in a user equipment UE, including:

a sending module, configured to send an uplink scheduling request SR message to a base station, where the SR message includes ultra-low delay service indication information, and the SR message is used to indicate the base station to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message;

and the receiving module is used for receiving the uplink ultra-low time delay resource distributed by the base station.

In a first possible implementation manner of the sixth aspect, the ultra-low latency service indication information includes an ultra-low latency data to-be-transmitted indication, where the ultra-low latency data to-be-transmitted indication is used to indicate whether the UE currently has data of an ultra-low latency service to wait for transmission;

In a second possible implementation manner of the sixth aspect, the ultra-low latency service indication information includes an ultra-low latency indication value;

According to a second possible implementation manner of the sixth aspect, in a third possible implementation manner, the ultra-low latency service indication information further includes an indication that ultra-low latency data is to be transmitted;

According to the second or third possible implementation manner of the sixth aspect, in a fourth possible implementation manner, the ultra-low latency indicating value includes an ultra-low latency level and/or a cache data volume level of an ultra-low latency service; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

According to the sixth aspect and any one of the first to third possible implementation manners of the sixth aspect, in a fifth possible implementation manner, the receiving module is further configured to receive a radio resource control, RRC, connection establishment message sent by the base station before the sending module sends the SR message to the base station, where a resource used for the UE to send the SR message and an SR cycle corresponding to the resource are configured in the RRC connection establishment message;

the sending module is configured to send the SR message to the base station, where the sending module is configured to: and sending the SR message according to the resource configured in the RRC connection establishment message and the SR period corresponding to the resource, wherein the SR period corresponding to the resource is configured to be an SR short period with the length less than 1 ms.

According to a fifth possible implementation manner of the sixth aspect, in a sixth possible implementation manner, the RRC connection establishment message is further configured with a multi-carrier service, or a single-carrier service and a PUCCH format indication;

the resource allocation apparatus further includes: a selecting module, configured to select a corresponding extended PUCCH format to carry the SR message according to TTI capabilities supported by the base station and the UE and content configured in the RRC connection setup message after the receiving module receives the RRC sent by the base station and before the sending module sends the SR message to the base station, where the selected extended PUCCH format includes an SR message indication value that is not less than 2 bits.

According to the sixth aspect and any one of the first to third possible implementation manners of the sixth aspect, in a seventh possible implementation manner, the receiving module is further configured to receive an RRC connection setup message sent by the base station before the sending module sends the SR message to the base station, where multiple PUCCHs are configured in the RRC connection setup message;

the sending module is configured to send the SR message to the base station, where the sending module is configured to: and selecting a corresponding PUCCH to transmit the SR message according to the resource type indicated by the SR message, wherein the first PUCCH is used for transmitting the SR message indicating uplink ultra-low delay resources, and the second PUCCH is used for transmitting the SR message indicating uplink non-ultra-low delay resources.

In a seventh aspect, the present invention provides a resource allocation apparatus, provided in a base station, the resource allocation apparatus including:

a sending module, configured to send a radio resource control, RRC, connection establishment message to a user equipment, UE, where the RRC connection establishment message is configured with a correspondence between a physical uplink control channel, PUCCH, and a delay requirement indication value, and the RRC connection establishment message is used to indicate the UE to select a corresponding PUCCH according to the determined delay requirement indication value;

a receiving module, configured to receive the SR message sent by the UE through the selected PUCCH;

and the allocation module is used for allocating uplink resources with corresponding length TTI to the UE according to the selected PUCCH, wherein the uplink resources comprise the uplink ultra-low delay resources and the uplink non-ultra-low delay resources.

In an eighth aspect, the present invention provides a resource allocation apparatus, disposed in a user equipment UE, including:

a receiving module, configured to receive a radio resource control RRC connection establishment message sent by a base station, where the RRC connection establishment message includes a corresponding relationship between a physical uplink control channel PUCCH and a delay requirement indication value;

the selection module is used for selecting a corresponding PUCCH according to the determined delay requirement indicated value;

a sending module, configured to send the SR message to the base station through the PUCCH selected by the selection module, where the SR message is used to instruct the base station to allocate an uplink resource of a corresponding length TTI to the UE according to the selected PUCCH, where the uplink resource includes the uplink ultra-low latency resource and the uplink non-ultra-low latency resource.

In the resource allocation method and the device provided by the invention, the base station receives the SR message which is sent by the UE and comprises the ultra-low delay service indication information, and allocates the uplink ultra-low delay resource for the UE according to the ultra-low delay service indication information in the SR message; the method provided by the embodiment realizes that the UE does not need to feed back the ultra-low delay service indication to the base station after waiting for the base station to allocate the uplink resource, namely in the process of allocating the uplink ultra-low delay resource by the base station, the interaction times of the base station and the UE are reduced, the efficiency of allocating the uplink ultra-low delay resource by the base station is correspondingly improved, and the problem that the conventional SR message cannot indicate the ultra-low delay service requirement information when the UE in the RRC connection state requests data transmission is solved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a flowchart of a resource allocation method according to an embodiment of the present invention;

fig. 2 is a flowchart of another resource allocation method according to an embodiment of the present invention;

fig. 3 is a flowchart of another resource allocation method according to an embodiment of the present invention;

fig. 4 is a flowchart of a resource allocation method according to another embodiment of the present invention;

fig. 5 is a flowchart of a resource allocation method according to an embodiment of the present invention;

fig. 6 is a signaling interaction flowchart of a resource allocation method according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another resource allocation apparatus according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of another resource allocation apparatus according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another resource allocation apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

In the current LTE network, since the eNB does not know when the UE needs to transmit uplink data, i.e., when the UE will transmit an SR message, before the UE transmits the SR message, the eNB needs to configure an SR period for the UE and detect whether there is an SR message to report on the allocated SR period. The relevant parameters of the current SR period are shown in table 1, and the SR period is at least 1 millisecond (ms) in duration.

TABLE 1

As can be seen from table 1, in the prior art, the shortest duration of the SR period configured by the eNB is 1ms, the UE needs to transmit the SR message in the configured SR period when it needs to transmit data, and in the prior art, the duration of the TTI is usually 1 ms. Specifically, an SR message sent by the UE in an SR period usually has only 1bit, which indicates whether data needs to be sent subsequently, the eNB may allocate uplink resources to the UE according to the SR message, and after the UE acquires the uplink resources, send a specific requirement of a service request on the allocated uplink resources, for example, an ultra-low latency service indication is required to be sent.

The technical solution of the present invention is described in detail below with specific embodiments, where a base station in the following embodiments of the present invention may be, for example, an eNB in an LTE network, and the eNB in the embodiments of the present invention may configure any SR index and corresponding SR period in table 1 for a UE, and the UE and the eNB in the embodiments of the present invention both need to establish an RRC connection. The following specific embodiments of the present invention may be combined, and the same or similar concepts or processes may not be described in detail in some embodiments.

Fig. 1 is a flowchart of a resource allocation method according to an embodiment of the present invention. The resource allocation method provided in this embodiment is suitable for the case of allocating uplink resources to the UE, and the method may be executed by a resource allocation apparatus, where the resource allocation apparatus is implemented by combining hardware and software, and the apparatus may be integrated in a processor of the base station, and is used for the processor to invoke. As shown in fig. 1, the method of this embodiment may include:

s110, the base station receives an SR message sent by the UE, wherein the SR message comprises the ultra-low delay service indication information.

In this embodiment, the UE generally needs to send the SR message in the SR period, and the SR period in this embodiment is configured by the base station for the UE in a process of establishing an RRC connection between the UE and the base station, that is, before S110, the method further includes: s100, a base station sends an RRC connection establishment message to UE, the RRC connection establishment message is configured with a resource for the UE to send the SR message and an SR cycle corresponding to the resource, the RRC connection establishment message is used for indicating the UE to send the SR message according to the configured resource and the SR cycle corresponding to the resource, wherein the SR cycle corresponding to the resource is configured to be an SR short cycle with the length less than 1 ms.

It should be noted that, when configuring resources for the UE, the base station in this embodiment is not limited to the existing resources in table 1, and may configure a dedicated SR short period for the ultra-low latency service, where the configuration content of the SR short period is shown in table 2 below.

TABLE 2

As shown in tables 1 and 2, the configured resource is generally a configuration index I of the SR_SRIn this embodiment, when the UE receives the configured resource, i.e. I, from the base station_SRAfter the value, a judgment can be made if I_SRWhen the value is less than or equal to 157, the conventional SR cycle is considered to be configured, and the SR message is sent according to the conventional SR cycle strategy; if I_SRIf the value is equal to 158, it is considered that the SR short period dedicated for the ultra-low delay service is configured, and since the SR short period dedicated for the ultra-low delay service is smaller than the length of one subframe, the subframe offset does not need to be configured, and the UE can send the SR message in any SR short period dedicated for the ultra-low delay service. In this embodiment, the resource configured by the base station as the UE is I_SRThe value equal to 158 is shown as an example, after receiving the RRC connection setup message, when the ultra-low latency service triggers an SR resource request, the UE supporting the ultra-low latency service sends an SR message carrying the indication information of the ultra-low latency service at the latest SR short cycle sending opportunity.

And S120, the base station allocates uplink ultra-low delay resources for the UE according to the ultra-low delay service indication information in the SR message.

In this embodiment, the SR message is different from a conventional SR message, the SR message in this embodiment carries ultra-low latency service indication information when the UE requests the ultra-low latency service, where the ultra-low latency service indication information may include, for example, one or more of an ultra-low latency data pending indication, an ultra-low latency level, and a cache data volume level of the ultra-low latency service, and the base station may allocate an uplink ultra-low latency resource to the UE according to a specific form and content of the ultra-low latency service indication information; obviously, compared with the conventional method in which the UE waits for the base station to allocate the uplink resource and carries the indication of the ultra-low latency service when performing data feedback on the allocated uplink resource, in the method provided in this embodiment, the SR message received by the base station carries the indication information of the ultra-low latency service, and when allocating the uplink resource, the UE is allocated with the uplink resource dedicated to the ultra-low latency service according to the indication information of the ultra-low latency service, so that the UE can acquire the uplink ultra-low latency resource in time, and the timeliness of data transmission under the service is improved. It should be noted that the TTI duration in the conventional uplink resource is 1ms, and the TTI duration in the uplink ultra-low latency resource is usually less than 1ms, and may be, for example, 1 symbol, or 0.5 ms.

In practical application, there is another possible situation that the method provided in this embodiment is used, that is, after receiving an SR message sent by the UE, the base station in this embodiment determines that the SR message does not include the ultra-low latency service indication information, and allocates uplink non-ultra-low latency resources to the UE according to the SR message. In a similar manner to the conventional manner, when the SR message does not include the ultra-low delay service indication information, the SR message does not carry any information indicating the type of the uplink delay service, and at this time, the base station directly allocates an uplink non-ultra-low delay resource, where the uplink non-ultra-low delay resource is usually an uplink resource with a TTI duration equal to 1 ms.

In the resource allocation method provided by this embodiment, a base station receives an SR message including ultra-low latency service indication information sent by a UE, and allocates uplink ultra-low latency resources to the UE according to the ultra-low latency service indication information in the SR message; the method provided by the embodiment realizes that the UE does not need to feed back the ultra-low delay service indication to the base station after waiting for the base station to allocate the uplink resource, namely in the process of allocating the uplink ultra-low delay resource by the base station, the interaction times of the base station and the UE are reduced, the efficiency of allocating the uplink ultra-low delay resource by the base station is correspondingly improved, and the problem that the conventional SR message cannot indicate the ultra-low delay service requirement information when the UE in the RRC connection state requests data transmission is solved.

Further, in the process of establishing the RRC connection between the base station and the UE, the SR period configured by the base station for the UE may be configured to be an SR short period with a duration less than 1ms, so that the UE can send the SR message at a shorter time interval, and if the current time is not the sending time in the SR period, the SR message can be sent by waiting for the shorter time, so that the timeliness of sending the SR message is improved, that is, the efficiency of obtaining the uplink ultra-low delay resource is improved.

Optionally, the indication information of the ultra-low latency service in the embodiment shown in fig. 1 includes, for example, an indication that ultra-low latency data is to be transmitted, where the indication that ultra-low latency data is to be transmitted is used to indicate whether the UE currently has data of the ultra-low latency service to wait for transmission; accordingly, S120 in fig. 1 may be replaced with: and when the ultra-low delay data to be transmitted is indicated as ultra-low delay service, the base station allocates uplink ultra-low delay resources for the UE.

For example, if there is new data of the ultra-low latency service reaching the buffer of the UE, the UE may set the indication that the ultra-low latency data is to be transmitted as TRUE; if the buffer memory of the UE has the ultra-low delay service data that is not completely transmitted, the UE may also set the indication that the ultra-low delay data is to be transmitted as TRUE; under other conditions, the UE sets the ultra-low delay data to be transmitted as False; the data format of the ultra-low latency data to be indicated in the SR message may be 1bit (bit), specifically, TRUE is represented by 1, False is represented by 0, or other data formats may also be used for representation. In a specific implementation, when the base station detects that the data with ultra-low delay to be transmitted is to be indicated as TRUE in the SR message, it may be determined whether to schedule the short TTI resource for the UE and which length format of the short TTI resource is scheduled according to the condition of the air interface resource.

Optionally, fig. 2 is a flowchart of another resource allocation method provided in the embodiment of the present invention, and on the basis of the embodiment shown in fig. 1, the ultra-low latency service indication information in this embodiment specifically includes an ultra-low latency indication value, then S120 may include: s121, the base station judges whether the TTI capabilities supported by the base station and the UE are the same, if so, the S122 is executed; if not, go to S123. In a specific implementation of this embodiment, the base station may carry capability information of the UE in the RRC connection request message received by the UE, and meanwhile, when the base station sends the RRC connection establishment message to the UE, the base station may also carry capability information of the base station, that is, both the base station and the UE that have established the RRC connection explicitly know TTI capabilities of the base station and the UE of the other side, where the TTI capability is a main factor that needs to be considered when the base station allocates the uplink ultra-low delay resource.

The specific allocation method is that, in step S122, when the base station determines that the TTI capabilities supported by the base station and the UE are the same, the uplink ultra-low delay resource of the TTI of the corresponding length is allocated according to the ultra-low delay indicated value.

And S123, when the base station judges that the TTI capabilities supported by the base station and the UE are different, preferentially distributing the uplink ultra-low delay resource of the TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation and the ultra-low delay indicated value of the base station and the UE.

For example, suppose that the base station and the UE both support TTIs of three durations, specifically: 1 symbol, 0.5ms and 1 ms. The ultra-low delay indication value in the SR message received by the base station can be represented by three values, as shown in table 3 below.

TABLE 3

Ultra-low delay indicated value	Resource type allocated by base station
		1	TTI 1 symbol
2	TTI＝0.5ms
		3	TTI＝1ms

Generally, the smaller the ultra-low delay indication value is, the higher the requirement on delay is, i.e. the smaller the value of TTI is; in addition, in this embodiment, the ultra-low latency indicator value may indicate that the maximum duration of the TTI is a TTI with a duration of 1ms, which is currently and generally used. Table 3 is only a possible corresponding relationship between the ultra-low delay indicated value and the resource allocation type of the base station, which is provided in this embodiment, and the present invention does not limit the number of the ultra-low delay indicated values and the TTI durations corresponding thereto.

As described above, if it is determined in S121 that the TTI capabilities supported by the base station and the UE are the same, the specific manner of allocating the uplink ultra-low delay resource is as follows:

when the ultra-low delay indicated value in the SR message is 1, allocating an uplink ultra-low delay resource with 1 symbol duration TTI to the UE;

when the ultra-low delay indicated value in the SR message is 2, allocating uplink ultra-low delay resources with the duration TTI of 0.5 millisecond to the UE;

and when the ultra-low delay indicated value in the SR message is 3, allocating the uplink ultra-low delay resource with the duration of 1 millisecond TTI to the UE.

In another possible implementation manner of this embodiment, if it is determined in S121 that the TTI capabilities supported by the base station and the UE are different, the specific manner of allocating the uplink ultra-low latency resource is as follows:

when the ultra-low delay indicated value in the SR message is 1, preferentially distributing the uplink ultra-low delay resource with the TTI duration closest to 1 symbol in the TTI capability intersection of the base station and the UE;

when the value of the ultra-low delay indicated in the SR message is 2, the priority order of allocating uplink ultra-low delay resources in the TTI capability intersection of the base station and the UE is: 0.5 milliseconds >1 symbol >1 millisecond;

and when the ultra-low delay indicated value in the SR message is 3, preferentially distributing the uplink ultra-low delay resource with the TTI duration closest to 1 millisecond in the TTI capability intersection of the base station and the UE.

The ultra-low delay indicated value in this embodiment may be an ultra-low delay level or a cache data volume level of an ultra-low delay service; the ultra-low delay level is used for indicating the requirement level of the ultra-low delay service of the UE on end-to-end delay or the requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in the cache region of the UE or the data amount of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

On one hand, the definition of the ultra-low delay level is explained, and the end-to-end delay can refer to the end-to-end delay of an air interface, namely the time consumed by the data from the time of reaching a transmitting terminal for caching until the data is correctly transmitted to a receiving terminal; the time delay may also refer to an end-to-end time delay of the core Network, that is, a time delay of correct transmission of Data between the UE and a Packet Data Network Gateway (PGW); the scheduling delay refers to the delay from the time when the data reaches the sending end buffer until the data is scheduled to be sent at the sending end.

In a specific implementation, the ultra-low latency level may be divided into levels of different granularities according to the level of latency requirement, for example: assuming that the end-to-end delay refers to the end-to-end delay of the air interface, and the delay requirement varies from 0.1ms to 0.5ms, it can be divided into 2 classes: level 1 when the time is less than 0.2ms, and level 2 when the time is more than 0.2 and less than 0.5 ms; the way of division is not limited to the above description, and the time delay may be divided into finer levels; generally, the more stringent the latency requirements, the faster the ultra-low latency traffic data requirements of the UE are transmitted.

It should be noted that, the data format of the ultra-low latency level in the SR message may be various, for example, when 4 levels are divided, 2 bits may be used to represent the ultra-low latency level, and other formats may also be used to represent the ultra-low latency level; in addition, when the base station in this embodiment detects an ultra-low latency level in the SR message, it may determine scheduling priorities between different UEs according to the different levels, and determine which length format of short TTI resource to schedule for the different UEs; generally speaking, a UE with tighter latency requirements gets higher scheduling priority, and if the base station supports multiple short TTI formats, the UE with tighter latency requirements may schedule resources of the shorter TTI format for it.

On the other hand, the definition of the cache data volume level of the ultra-low delay service is explained, when more than 1 type of ultra-low delay service data is waiting to be transmitted in the UE cache, the cache data volume level of the ultra-low delay service may indicate the total amount of the ultra-low delay service data waiting to be transmitted in the UE cache, or indicate the data volume of the highest priority ultra-low delay service waiting to be transmitted in the UE cache, where the highest priority ultra-low delay service refers to a service with the worst delay requirement. In a specific implementation, the data amount of the ultra-low latency service cache may be divided into levels with different granularities according to the level of the data amount, for example: the levels may be divided at a granularity of 500 bits or may be divided at a granularity of 1000 bits or other granularity.

It should be noted that, the data format of the cache data volume level of the ultra-low latency service in the SR message may be various, for example, when the cache data volume level is divided into 4 levels, 2 bits may be adopted to represent the data volume level; other formats may be used to represent data volume levels; in addition, when the base station detects the level of the amount of buffered data of the ultra-low latency service in the SR message, it determines how many resources in the short TTI format to schedule for the UE according to the difference of the level, for example: assuming that the level of the buffered data amount of the service with ultra-low delay detected by the base station is within 500 bits and the short TTI format supported by the base station is 0.5ms, the base station may schedule a Resource of a Physical Resource Block (PRB) of 0.5TTI × 1 for the UE, and the buffered data amount is within 1000 bits, the base station may schedule a Resource of PRB of 0.5TTI × 2 for the UE.

It should be further noted that, the above-mentioned ultra-low latency class and the cache data volume class of the ultra-low latency service may be used in combination, for example, when the UE transmits the cache data volume class of the ultra-low latency class and the ultra-low latency service in the SR message at the same time, and both the base station and the UE support short TTIs of multiple formats (for example, two formats of a short TTI of 1ofdm symbol and a short TTI of 0.5 ms), if the UE has data to be transmitted in 2 classes of ultra-low latency services, the UE may report the ultra-low latency class of 1bit and the cache data volume class of the ultra-low latency service of the total data amount of the 2 classes of ultra-low latency services, and accordingly, the base station may allocate sufficient short TTI resources of 1ofdm symbol to the UE according to the above-mentioned information and on the principle of guaranteeing the highest priority ultra-low latency service.

Fig. 3 is a flowchart of another resource allocation method according to an embodiment of the present invention. In another possible implementation manner of the present invention, also on the basis of the embodiment shown in fig. 1, in this embodiment, the ultra-low latency service indication information specifically includes an ultra-low latency data pending indication and an ultra-low latency indication value, then S120 in fig. 1 may include: s121, when the ultra-low delay data to be transmitted is indicated as ultra-low delay service, the base station allocates uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value; and S122, when the ultra-low time delay data to be transmitted is indicated to be a non-ultra-low time delay service, the base station allocates uplink non-ultra-low time delay resources. S121 and S122 in this embodiment are alternatively executed.

It should be noted that, when the ultra-low latency data to be transmitted is an ultra-low latency service in this embodiment, the base station allocates the uplink ultra-low latency resources of the TTI corresponding to the length according to the cache data level of the ultra-low latency service in the same manner as in the embodiment shown in fig. 2, the cache data level of the ultra-low latency service is the same as the ultra-low latency indication value in the embodiment, and the base station may perform a specific allocation operation according to the TTI capabilities supported by the base station and the UE, which is not described herein again.

For example, the TTI supporting three durations is also performed by the base station and the UE, specifically: 1 symbol, 0.5ms and 1ms are given as examples. In the SR message received by the base station, the indication that the ultra-low delay data is to be transmitted may be an ultra-low delay service and a non-ultra-low delay service, and when the indication that the ultra-low delay data is to be transmitted is an ultra-low delay service, the cache data volume level of the ultra-low delay service may be represented by three values, as shown in the following table 4.

TABLE 4

Ultra-low delay data waiting indication and ultra-low delay indication value

Resource type allocated by base station

Ultra-low delay service with ultra-low delay indicated value of 1	TTI 1 symbol
		Ultra-low delay service with ultra-low delay indicated value of 2	TTI＝0.5ms
Ultra-low delay service, ultra-low delay indicated value is 3	TTI＝1ms
		Non-ultra low latency services	TTI＝1ms

It should be noted that, the smaller the ultra-low delay indicated value in this embodiment is, the smaller the data amount required to be transmitted is, the more suitable for carrying on the short TTI is; in addition, in this embodiment, the cache data volume level of the ultra-low latency service may indicate that the maximum duration of the TTI is the currently generally used TTI with a duration of 1ms, that is, the maximum duration of the TTI may be the same as the duration of the TTI of the non-ultra-low latency service. Table 4 is only a possible corresponding relationship between the combination of the ultra-low delay data waiting indication and the ultra-low delay indication value and the type of the resource allocated by the base station, which is provided in this embodiment, and the present invention does not limit the number of the ultra-low delay indication values and the TTI durations corresponding to the ultra-low delay indication values. The ultra-low delay indicated value in this embodiment may also be an ultra-low delay level and/or a cache data volume level of an ultra-low delay service, and when the ultra-low delay indicated value is different, the specific manner of allocating the short TTI by the base station is the same as that in the above embodiment, and therefore, details are not described here again.

Further, on the basis of the above embodiments of the present invention, the RRC connection setup message sent by the base station to the UE may also be configured with a multi-carrier service, or a single carrier service and a Physical Uplink Control Channel (PUCCH) format indication; in a specific implementation, the SR message is carried by the UE according to the TTI capability supported by the base station and the UE and a corresponding extended PUCCH format selected from the content configured in the RRC connection establishment message, where the selected extended PUCCH format includes an SR message indication value not less than 2 bits.

It should be noted that, in the current LTE protocol: the SR message of the single carrier service is fed back by using the Format1 or Format 1a of the PUCCH; the SR message of the dual-carrier service is fed back by using the Format1b or Format3 of the PUCCH; SR messages of three-carrier or more services are fed back by using Format3 of PUCCH; specifically, Format3 of the PUCCH can carry 48 valid bits at most, and the bit conditions currently used by Format3 of the PUCCH carrying the SR message are: format3 supports 11 bits at most in a Frequency Division Duplex (FDD) mode, wherein 10 bits are used for transmitting Hybrid Automatic Repeat request-acknowledgement indication (HARQ-ACK), and 1bit is used for positive and negative SR indication; format3 supports 21 bits at most in a Time Division Duplex (TDD) mode, wherein 20 bits are used for transmitting HARQ-ACK, 1bit is used for positive and negative SR indication, 1bit in the positive and negative SR indication indicates that data needs to be transmitted subsequently, and 0 indicates that no data needs to be transmitted subsequently. Therefore, for an application scenario that ultra-low delay service indication information does not need to be reported, the SR message is reported by adopting the existing Format definition of the PUCCH.

In this embodiment, the situations of the embodiments shown in fig. 2 and fig. 3 are shown, as shown in table 3 and table 4, the level of the buffered data amount of the ultra-low latency indicator or the ultra-low latency service is represented by three indicator values, and the SR message carrying the indication information of the ultra-low latency service is carried by Format extension of PUCCH, for example, the SR message is carried by extension of Format1b and Format3 of PUCCH.

First, the extending method of Format1b and Format3 of PUCCH is described:

the Format1b supports at most 3 bits, wherein 1bit is used for transmitting HARQ-ACK, 2 bits are used for transmitting SR messages, a value of 0 indicates negative SR, a value of non-0 indicates positive SR, and the value is an ultra-low delay indication value.

Format3 supports 12 bits at most in FDD mode, wherein 10 bits are used for transmitting HARQ-ACK, 2 bits are used for transmitting SR message, a value of 0 indicates negative SR, a value of non-0 indicates positive SR, and the value is ultra-low delay indication value.

Format3 supports 22 bits at most in TDD mode, wherein 20 bits are used for transmitting HARQ-ACK, 2 bits are used for transmitting SR message, a value of 0 indicates negative SR, a value of non-0 indicates positive SR, and the value is ultra-low delay indicated value.

It should be noted that, the 2-bit SR transmission message in Format1b and Format3 of the extended PUCCH is based on 3 possible TTI durations of the ultra-low delay service indication information in tables 3 and 4, and if the ultra-low delay indication value is more in the present invention, more bits of the extended Format3 are needed to carry the SR message, for example, 3 bits are used for transmitting the SR message. Based on the above expansion of the PUCCH format, a specific manner for the UE to send the SR message may be:

when the TTI capability of the ultra-low delay service supported by the base station and the UE is the same, the UE selects an extended PUCCH Format according to the configuration in the RRC connection establishment message, if a single-carrier service is configured, the Format1b or the Format3 can be adopted to carry the SR message, at this time, if the Format1b is indicated to report the SR message in the RRC connection establishment message, the Format1b is adopted to carry the SR message, and if the Format3 is not indicated, the SR message is carried; if the multi-carrier service is configured, the Format3 may be used to carry the SR message, and specifically, the SR message is carried according to Format3 in the FDD mode or the TDD mode.

Furthermore, on the basis of the foregoing embodiments of the present invention, the base station may further configure multiple PUCCHs in sending the RRC connection setup message to the UE, and in this case, the RRC connection setup message is further used to instruct the UE to select a corresponding PUCCH to send the SR message according to the resource type indicated by the SR message; for example, the RRC connection setup message is configured with a first PUCCH and a second PUCCH, where the first PUCCH is used to send an SR message indicating an uplink ultra-low latency resource, and the second PUCCH is used to send an SR message indicating an uplink non-ultra-low latency resource; the uplink non-ultra-low delay resource in this embodiment is also an uplink resource with a TTI duration equal to 1 ms.

It should be noted that, when the UE in this embodiment transmits the SR message by using the first PUCCH, the manner in which the base station allocates the uplink ultra-low latency resource is the same as that in the foregoing embodiments, and the uplink ultra-low latency resource is allocated according to the ultra-low latency service indication information in the SR message; if the UE transmits the SR message using the second PUCCH, the method is the same as the method in which the base station allocates the uplink resource in the prior art.

Fig. 4 is a flowchart of another resource allocation method according to an embodiment of the present invention. The resource allocation method provided in this embodiment is applicable to a case where the UE acquires uplink resources, and the method may be executed by a resource allocation apparatus, where the resource allocation apparatus is implemented by combining hardware and software, and the apparatus may be integrated in a processor of the UE for the processor to call and use. As shown in fig. 4, the method of this embodiment may include:

s210, the UE sends an uplink Scheduling Request (SR) message to the base station, wherein the SR message comprises ultra-low delay service indication information, and the SR message is used for indicating the base station to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message.

The UE in this embodiment also needs to send the SR message in the SR period, and the SR period is also configured by the base station for the UE in the process of establishing the RRC connection between the UE and the base station, that is, before S210, the method further includes: s200, the UE receives an RRC connection establishment message sent by the base station, and the RRC connection establishment message is configured with a resource for the UE to send the SR message and an SR cycle corresponding to the resource; accordingly, the specific way for the UE to send the SR message to the base station is: the UE sends the SR message according to the resource configured in the RRC connection establishment message and the SR cycle corresponding to the resource, wherein the SR cycle corresponding to the resource is configured to be the SR short cycle with the length less than 1 ms; in this embodiment, the SR period configured by the base station for the UE can also refer to table 2, and in a specific implementation, when the UE receives I of the SR from the base station_SRAfter the value, a judgment can be made if I_SRWhen the value is less than or equal to 157, the conventional SR cycle is considered to be configured, and the SR message is sent according to the conventional SR cycle strategy; if I_SRThe value is equal to 158, and the SR short period dedicated to the ultra-low latency service is considered to be configured.

It should be noted that, in this embodiment, the manner of allocating uplink resources by the base station according to the SR message sent by the UE is the same as that in the foregoing embodiments, specifically, the same manner is used for allocating uplink resources by using the SR message in this embodimentI_SRThe value equal to 158 is taken as an example to illustrate, the base station allocates the uplink ultra-low delay resource to the UE according to the ultra-low delay service indication information in the SR message, where the SR message in this case is different from a conventional SR message, the SR message in this embodiment carries the ultra-low delay service indication information when the UE requests the ultra-low delay service, and the ultra-low delay service indication information may include, for example, one or more of an ultra-low delay data pending indication, an ultra-low delay level, and a cache data volume level of the ultra-low delay service, and the base station may allocate the uplink ultra-low delay resource to the UE according to a specific form and content of the ultra-low delay service indication information. It should be noted that the TTI duration in the conventional uplink resource is 1ms, and the TTI duration in the uplink ultra-low latency resource is usually less than 1ms, and may be, for example, 1 symbol, or 0.5 ms.

In practical application, there is another possible situation that the method provided in this embodiment is used, that is, after receiving an SR message sent by a UE, a base station in this embodiment determines that the SR message does not include the ultra-low latency service indication information, and may allocate uplink non-ultra-low latency resources to the UE according to the SR message. The situation is similar to a conventional manner, when the SR message does not include the ultra-low delay service indication information, no information indicating the uplink delay service type is carried, and at this time, the base station directly allocates the uplink non-ultra-low delay resource, which is usually an uplink resource with a TTI duration equal to 1 ms.

S220, the UE receives the uplink ultra-low delay resource distributed by the base station.

In this embodiment, the base station sends the allocated uplink ultra-low delay resource to the UE according to the ultra-low delay service indication information in the SR message, that is, the UE may receive the uplink ultra-low delay resource.

In the resource allocation method provided by this embodiment, the UE sends an SR message including the ultra-low delay service indication information to the base station, and instructs the base station to allocate the uplink ultra-low delay resource to the UE according to the ultra-low delay service indication information in the SR message, so that the UE can receive the uplink ultra-low delay resource allocated by the base station; the method provided by the embodiment realizes that the UE does not need to feed back the ultra-low delay service indication to the base station after waiting for the base station to allocate the uplink resource, namely in the process of allocating the uplink ultra-low delay resource by the base station, the interaction between the base station and the UE is reduced, the efficiency of allocating the uplink ultra-low delay resource by the base station is correspondingly improved, and the problem that the conventional SR message cannot indicate the ultra-low delay service requirement information when the UE in the RRC connection state requests data transmission is solved.

Further, in the process of establishing the RRC connection between the base station and the UE, the SR period configured by the base station for the UE may be configured to be an SR short period with a duration less than 1ms, so that the UE can send the SR message at a shorter interval, and if the current time is not the sending time in the SR period, the SR message can be sent by waiting for a shorter time, so that the timeliness of sending the SR message is improved, that is, the efficiency of obtaining the uplink ultra-low delay resource is improved.

Optionally, the ultra-low latency service indication information in the embodiment shown in fig. 4 includes, for example, an ultra-low latency data pending indication, where the ultra-low latency data pending indication is used to indicate whether the UE currently has data waiting for transmission of the ultra-low latency service; correspondingly, the SR message in S210 is used to instruct the base station to allocate uplink ultra-low delay resources to the UE when the ultra-low delay data is to be transmitted and indicated as the ultra-low delay service.

Optionally, on the basis of the embodiment shown in fig. 4, the ultra-low delay service indication information in this embodiment specifically includes an ultra-low delay indication value, and the SR message in this embodiment is used to instruct the base station to allocate an uplink ultra-low delay resource of a TTI of a corresponding length according to the ultra-low delay indication value when it is determined that the TTI capabilities supported by the base station and the UE are the same; or, the SR message in this embodiment is used to instruct the base station to preferentially allocate the uplink ultra-low delay resource of the TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation and the ultra-low delay indicated value of the base station and the UE when it is determined that the TTI capabilities supported by the base station and the UE are different. In this embodiment, the TTI with three durations supported by the base station and the UE in the embodiment shown in fig. 2 is taken as an example for explanation, that is, the ultra-low delay indication value in the SR message sent by the UE can be represented by three values, as shown in table 3, and the specific manner in which the base station allocates the uplink ultra-low delay resource according to the ultra-low delay indication value and the TTI capabilities supported by the base station and the UE is similar to that in the embodiment shown in fig. 2, and therefore, no further description is given here. It should be noted that the ultra-low delay indicated value in this embodiment may also be an ultra-low delay level or a cache data volume level of an ultra-low delay service; the ultra-low delay level is used for indicating the requirement level of the ultra-low delay service of the UE on end-to-end delay or the requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in the cache region of the UE or the data amount of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

On the basis of the foregoing embodiment, the indication information of the ultra-low delay service in this embodiment may further include an indication that ultra-low delay data is to be transmitted, where the SR message in this embodiment is used to indicate, when the ultra-low delay data is to be transmitted and indicated as an ultra-low delay service, the base station allocates, according to the ultra-low delay indication value, the uplink ultra-low delay resource of the TTI corresponding to the length; or, the SR message in this embodiment is used to instruct the base station to allocate the uplink non-ultra-low delay resource when the ultra-low delay data to be transmitted is indicated as the non-ultra-low delay service.

It should be noted that, in this embodiment, the SR message may include one or more of the ultra-low latency data pending indication, the ultra-low latency level, or the cache data volume level of the ultra-low latency service, and formats of the contents, and a specific manner in which the base station allocates the uplink ultra-low latency resource according to different contents of the ultra-low latency service indication information, which have been specifically described in the above embodiment, and therefore, details are not described here again.

Further, fig. 5 is a flowchart of another resource allocation method provided in the embodiments of the present invention, and on the basis of the above embodiments of the present invention, a multi-carrier service, or a single-carrier service and a PUCCH format indication may also be configured in an RRC connection setup message received by a UE; in a specific implementation, after S200 and before S210, the method further includes: s201, UE selects a corresponding extended PUCCH format to carry SR messages according to TTI capability supported by a base station and the UE and content configured in RRC connection establishment messages, wherein the selected extended PUCCH format comprises an SR message indication value not less than 2 bits. In this embodiment, the SR message may also be carried by extending Format1b and Format3 of the PUCCH, and the specific manner of extending Format1b and Format3 is the same as that in the above embodiment, and therefore, will not be described herein again.

In a specific implementation, under the condition that the TTI capabilities of the ultra-low latency services supported by the base station and the UE are the same, the UE selects a mode of extending the PUCCH format, that is, S201 specifically includes: s202, the UE determines whether the RRC connection setup message configures a multi-carrier service or a single-carrier service, if the RRC connection setup message is the multi-carrier service, then S203 is executed, and if the RRC connection setup message is the single-carrier service, then S204 is executed.

S203, the UE adopts the Format3 of the extended PUCCH to carry the SR message; because the maximum bit number supported by Format3 is different between the FDD mode and the TDD mode, the specific manner of extending Format3 is also selected according to the specific mode.

S204, the UE determines whether the RRC connection setup message configures a PUCCH format indication, if not, performs S203, and if so, performs S205.

S205, when the PUCCH Format indicates that the Format1b is used for indicating to report the SR message, the UE adopts the Format1b of the extended PUCCH to carry the SR message, and when the PUCCH Format indicates that the Format3 is used for indicating to report the SR message, the Format3 of the extended PUCCH is used for carrying the SR message; the bit usage of Format1b and Format3 of the extended PUCCH is the same as in the above embodiment.

It should be noted that, in the present embodiment, 2 bits are used in Format1b and Format3 of the extended PUCCH to transmit the SR message, which are based on 3 possible TTI durations of the ultra-low latency service indication information in the above table 3 and table 4, if there are many ultra-low latency service indication values in the present invention, more bits of the extended Format3 are needed to carry the SR message, for example, 3 bits are used to transmit the SR message.

Further, on the basis of the above embodiments of the present invention, in S200, the RRC connection setup message received by the UE may be configured with multiple PUCCHs; then S210 may be replaced with: the UE selects a corresponding PUCCH to transmit the SR message according to the resource type indicated by the SR message, wherein the first PUCCH is used for transmitting the SR message indicating uplink ultra-low delay resources, and the second PUCCH is used for transmitting the SR message indicating uplink non-ultra-low delay resources; the uplink non-ultra-low delay resource in this embodiment is also an uplink resource with a TTI duration equal to 1 ms.

It should be further noted that, when the UE in the above embodiment of the present invention sends the SR message, when the UE has an ultra-low delay service requirement, the SR message carries the ultra-low delay service indication information, so that the base station can directly allocate the uplink ultra-low delay resource to the UE according to the ultra-low delay service indication information when receiving the SR message; in another possible implementation manner of the present invention, a specific ultra-low latency service requirement of a UE may be indicated in other manners, as shown in fig. 6, which is a signaling interaction flow chart of a resource allocation method provided in an embodiment of the present invention, where the method of this embodiment specifically includes:

s310, the base station sends an RRC connection establishment message to the UE, the RRC connection establishment message is configured with a corresponding relation between a PUCCH and a delay requirement indicating value, and the RRC connection establishment message is used for indicating the UE to select the corresponding PUCCH according to the determined delay requirement indicating value.

In this embodiment, the base station configures different PUCCH resources for SR messages of different durations TTI in the RRC setup message, for example, PUCCH1 is configured for SR messages with a delay requirement indication value of 1, PUCCH2 is configured for SR messages with a delay requirement indication value of 2, and PUCCH3 is configured for SR messages with a delay requirement indication value of 3.

And S320, the UE selects a corresponding PUCCH according to the determined delay requirement indicated value.

In this embodiment, when the UE sends the SR message, it may be determined that the delay requirement indication value is sent by selecting a corresponding PUCCH, TTI durations corresponding to different delay requirement indication values are different, and the delay requirement indication value determined by the UE is the duration for determining the requested TTI resource.

S330, the UE transmits the SR message to the base station through the selected PUCCH.

For example, the SR message may be transmitted through PUCCH1, PUCCH2, or PUCCH3, and the SR message may be transmitted once and may be carried only through one PUCCH, i.e., three S330 in fig. 6 are alternatively selected.

And S340, the base station allocates uplink resources with corresponding length TTI to the UE according to the selected PUCCH, wherein the uplink resources comprise uplink ultra-low time delay resources and uplink non-ultra-low time delay resources.

In this embodiment, after receiving the SR message, the base station may determine the TTI duration of the resource requested by the SR message according to the correspondence between the PUCCH and the different delay requirement indication values, for example, the TTI duration may be an ultra-low delay service with various TTI durations, or may be a conventional delay service.

Fig. 7 is a schematic structural diagram of a resource allocation apparatus according to an embodiment of the present invention. The resource allocation apparatus provided in this embodiment is suitable for use in the case of allocating uplink resources to a UE, and the resource allocation apparatus is implemented by combining hardware and software, and the apparatus may be integrated in a processor of a base station, and is used by the processor. As shown in fig. 7, the resource allocation apparatus of this embodiment specifically includes: a receiving module 11, an assigning module 12 and a sending module 13.

The receiving module 11 is configured to receive an uplink scheduling request SR message sent by the UE, where the SR message includes ultra-low latency service indication information.

In this embodiment, the UE generally needs to send the SR message within the SR period, and the SR period in this embodiment is configured by the base station for the UE in a process of establishing an RRC connection between the UE and the base station, that is, the sending module 13 in this embodiment is configured to send, to the UE, a radio resource control RRC connection establishment message before the receiving module 11 receives the SR message sent by the UE, where a resource used for the UE to send the SR message and an SR period corresponding to the resource are configured in the RRC connection establishment message, and the RRC connection establishment message is used to instruct the UE to send the SR message according to the configured resource and according to the SR period corresponding to the resource, where the SR period corresponding to the resource is configured as an SR short period with a length less than 1 ms.

It should be noted that, in this embodiment, the resource configured by the base station for the UE may also be the SR short period shown in table 2, and after the UE receives the configured resource from the base station, the method for determining the duration of the SR short period according to the resource and sending the SR message in the determined SR short period is the same as that in the above embodiment, and therefore, details are not repeated here.

And the allocating module 12 is configured to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message received by the receiving module 11.

In this embodiment, the SR message is different from a conventional SR message that does not include the ultra-low latency service indication information, the SR message in this embodiment carries the ultra-low latency service indication information when the UE requests the ultra-low latency service, the ultra-low latency service indication information may include, for example, one or more of an ultra-low latency data pending indication, an ultra-low latency level, and a cache data volume level of the ultra-low latency service, and the allocation module 12 may allocate the uplink ultra-low latency resource to the UE according to a specific form and content of the ultra-low latency service indication information.

In practical application, there is another possible situation that the method provided in this embodiment may be that the SR message received by the receiving module 11 in this embodiment may not carry the ultra-low latency service indication information, that is, the conventional SR message, and then the allocating module 12 in this embodiment is further configured to, after the receiving module 11 receives the SR message sent by the UE and after it is determined that the SR message received by the receiving module 11 does not include the ultra-low latency service indication information, allocate the uplink non-ultra-low latency resource to the UE according to the SR message.

The resource allocation apparatus provided in the embodiment of the present invention is configured to execute the resource allocation method provided in the embodiment shown in fig. 1of the present invention, and has corresponding functional modules, which implement similar principles and technical effects, and are not described herein again.

Optionally, the ultra-low latency service indication information in the embodiment shown in fig. 7 includes, for example, an ultra-low latency data pending indication, where the ultra-low latency data pending indication is used to indicate whether the UE currently has data waiting for transmission of the ultra-low latency service; correspondingly, the specific way for allocating the uplink ultra-low delay resource to the UE according to the ultra-low delay service indication information by the allocation module in the embodiment is as follows: and the distribution module distributes uplink ultra-low delay resources for the UE when the ultra-low delay data to be transmitted is indicated as ultra-low delay service.

Optionally, fig. 8 is a schematic structural diagram of another resource allocation apparatus provided in the embodiment of the present invention, and based on the embodiment shown in fig. 7, in this embodiment, the ultra-low latency service indication information specifically includes an ultra-low latency indication value, and the allocation module 12 in this embodiment includes: a judging unit 14 and an allocating unit 15, wherein the judging unit 14 is used for judging whether the TTI capabilities supported by the base station and the UE are the same; correspondingly, the allocating unit 15 is configured to allocate, according to the ultra-low delay indicated value, the uplink ultra-low delay resource of the TTI of the corresponding length when the determining unit 14 determines that the TTI capabilities supported by the base station and the UE are the same; in another possible implementation manner, the allocating unit 15 is further configured to, when the determining unit 14 determines that the TTI capabilities supported by the base station and the UE are different, preferentially allocate the uplink ultra-low delay resource of the TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation and the ultra-low delay indicated value of the base station and the UE. It should be noted that the ultra-low delay indicated value in this embodiment may also be an ultra-low delay level or a cache data volume level of an ultra-low delay service; the ultra-low delay level is used for indicating the requirement level of the ultra-low delay service of the UE on end-to-end delay or the requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in the cache region of the UE or the data amount of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

The resource allocation apparatus provided in the embodiment of the present invention is configured to execute the resource allocation method provided in the embodiment shown in fig. 2 of the present invention, and has corresponding functional modules, which implement similar principles and technical effects, and are not described herein again.

On the basis of the foregoing embodiment, the indication information of the ultra-low latency service in this embodiment may further include an indication that ultra-low latency data is to be transmitted, and a specific implementation manner of allocating, by the allocation module 12 in this embodiment, an uplink ultra-low latency resource to the UE is as follows: when the ultra-low delay data is to be indicated as the ultra-low delay service, the allocation module 12 allocates the uplink ultra-low delay resource of the corresponding length TTI according to the ultra-low delay indication value; the allocating module 12 allocates the uplink non-ultra-low delay resource when the ultra-low delay data is to be transmitted and indicated as a non-ultra-low delay service.

The resource allocation apparatus provided in the embodiment of the present invention is configured to execute the resource allocation method provided in the embodiment shown in fig. 3 of the present invention, and has corresponding functional modules, which implement similar principles and technical effects, and are not described herein again.

Further, on the basis of the above embodiments of the present invention, the RRC connection setup message sent by the base station to the UE may also be configured with a multi-carrier service, or a single-carrier service and a PUCCH format indication; the SR message in this embodiment is carried by the UE according to the TTI capability supported by the base station and the UE and the corresponding extended PUCCH format selected by the content configured in the RRC connection establishment message, and the selected extended PUCCH format includes an SR message indication value not less than 2 bits. It should be noted that, the specific manner of extending the PUCCH format in this embodiment and the manner of selecting the extended PUCCH format by the UE according to the multi-carrier service, or the single-carrier service configured in the RRC connection setup message are the same as those in the above embodiments, and therefore, details are not repeated here.

Further, on the basis of the foregoing embodiments of the present invention, the sending module 13 may further configure a plurality of PUCCHs in sending the RRC connection setup message to the UE, and in this case, the RRC connection setup message is further used for instructing the UE to select a corresponding PUCCH to send the SR message according to the resource type indicated by the SR message; for example, the RRC connection setup message is configured with a first PUCCH and a second PUCCH, where the first PUCCH is used to send an SR message indicating an uplink ultra-low latency resource, and the second PUCCH is used to send an SR message indicating an uplink non-ultra-low latency resource; the uplink non-ultra-low delay resource in this embodiment is also an uplink resource with a TTI duration equal to 1 ms.

In another possible implementation manner of the present invention, the method may be implemented by using the resource allocation apparatus shown in fig. 7, and specifically, the sending module 13 is configured to send an RRC connection setup message to the UE, where the RRC connection setup message is configured with a corresponding relationship between a PUCCH and a delay requirement indication value, and the RRC connection setup message is used to instruct the UE to select the corresponding PUCCH according to the determined delay requirement indication value.

A receiving module 11, configured to receive an SR message sent by the UE through the selected PUCCH.

And the allocating module 12 is configured to allocate, according to the selected PUCCH, an uplink resource of a TTI of a corresponding length to the UE, where the uplink resource includes an uplink ultra-low delay resource and an uplink non-ultra-low delay resource.

The resource allocation apparatus provided in the embodiment of the present invention is configured to perform the operation performed by the base station in the resource allocation method provided in the embodiment of fig. 6 of the present invention, and has corresponding functional modules, which implement similar principles and technical effects and are not described herein again.

Fig. 9 is a schematic structural diagram of another resource allocation apparatus according to an embodiment of the present invention. The resource allocation device provided by this embodiment is suitable for the case where the UE acquires the uplink resource, and is implemented by combining hardware and software, and the device may be integrated in a processor of the UE for the processor to invoke and use. As shown in fig. 9, the resource allocation apparatus of this embodiment specifically includes: a transmitting module 21 and a receiving module 22.

The sending module 21 is configured to send an uplink scheduling request SR message to the base station, where the SR message includes the ultra-low latency service indication information, and the SR message is used to instruct the base station to allocate uplink ultra-low latency resources to the UE according to the ultra-low latency service indication information.

The UE in this embodiment also needs to send an SR message in an SR period, and the SR period is also configured by the base station for the UE in the process of establishing RRC connection between the UE and the base station, that is, the receiving module 22 in this embodiment is further configured to receive, before the sending module 21 sends the SR message to the base station, an RRC connection establishment message sent by the base station, where resources used for the UE to send the SR message and the SR period corresponding to the resources are configured in the RRC connection establishment message; correspondingly, in this embodiment, the specific way for the sending module 21 to send the SR message to the base station is as follows: and sending the SR message according to the resource configured in the RRC connection establishment message and the SR period corresponding to the resource, wherein the SR period corresponding to the resource is configured to be the SR short period with the length less than 1 ms. In this embodiment, the resource configured by the base station for the UE may also be the SR short period shown in table 2, and after the UE receives the configured resource from the base station, the method for determining the duration of the SR short period according to the resource and sending the SR message in the determined SR short period is the same as the above embodiment, and therefore, details are not repeated here.

It should be noted that, in this embodiment, a manner of allocating, by a base station, an uplink resource according to an SR message sent by a UE is the same as that in the above embodiments, specifically, after receiving the SR message including the ultra-low latency service indication information, the base station allocates, according to the ultra-low latency service indication information, the uplink ultra-low latency resource for the UE, where the SR message in this embodiment carries the ultra-low latency service indication information when the UE requests the ultra-low latency service, where the ultra-low latency service indication information may include, for example, an ultra-low latency indication value, or one or more of an ultra-low latency data pending indication, an ultra-low latency level, and a cache data volume level of the ultra-low latency service, and the base station may allocate, according to a specific form and content of the ultra-low latency service indication information, the uplink ultra-low latency resource for the.

In practical application, there is another possible case that the method provided in this embodiment may be used, that is, after the ultra-low latency service indication information may not be included in the SR message received by the base station in this embodiment, at this time, the base station may allocate uplink non-ultra-low latency resources to the UE according to the SR message.

A receiving module 22, configured to receive the uplink ultra-low delay resource allocated by the base station.

The resource allocation apparatus provided in the embodiment of the present invention is configured to execute the resource allocation method provided in the embodiment shown in fig. 4 of the present invention, and has corresponding functional modules, which implement similar principles and technical effects, and are not described herein again.

Optionally, the ultra-low latency service indication information in the embodiment shown in fig. 9 includes, for example, an indication that ultra-low latency data is to be transmitted, where the indication that ultra-low latency data is to be transmitted is used to indicate whether the UE currently has data of an ultra-low latency service to wait for transmission; correspondingly, the SR message sent by the sending module 21 is used to instruct the base station to allocate uplink ultra-low delay resources to the UE when the ultra-low delay data is to be transmitted and indicated as an ultra-low delay service.

Optionally, on the basis of the embodiment shown in fig. 9, the ultra-low delay service indication information in this embodiment specifically includes an ultra-low delay indication value, and the SR message in this embodiment is used to instruct the base station to allocate an uplink ultra-low delay resource of a TTI of a corresponding length according to the ultra-low delay indication value when it is determined that the TTI capabilities supported by the base station and the UE are the same; or, the SR message in this embodiment is used to instruct the base station to preferentially allocate the uplink ultra-low delay resource of the TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation and the ultra-low delay indicated value of the base station and the UE when the TTI capabilities supported by the base station and the UE are different. In this embodiment, the TTI with three durations supported by the base station and the UE in the embodiment shown in fig. 2 is taken as an example for explanation, that is, the ultra-low delay indication value in the SR message sent by the UE can be represented by three values, as shown in table 3, and the specific manner in which the base station allocates the uplink ultra-low delay resource according to the ultra-low delay indication value and the TTI capabilities supported by the base station and the UE is similar to that in the embodiment shown in fig. 2, and therefore, no further description is given here.

It should be noted that the ultra-low delay indicated value in this embodiment may also be an ultra-low delay level or a cache data volume level of an ultra-low delay service; the ultra-low delay level is used for indicating the requirement level of the ultra-low delay service of the UE on end-to-end delay or the requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in the cache region of the UE or the data amount of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

Further, fig. 10 is a schematic structural diagram of another resource allocation apparatus provided in the embodiment of the present invention, and on the basis of the foregoing embodiments of the present invention, the RRC connection setup message received by the receiving module 22 may also be configured with a multi-carrier service, or a single-carrier service and a PUCCH format indication; correspondingly, the resource allocation apparatus provided in this embodiment further includes: a selecting module 23, configured to, after the receiving module 22 receives the RRC connection setup message sent by the base station and before the sending module 21 sends the SR message to the base station, select a corresponding extended PUCCH format to carry the SR message according to the TTI capabilities supported by the base station and the UE and the content configured in the RRC connection setup message, where the selected extended PUCCH format includes an SR message indication value that is not less than 2 bits. It should be noted that, the specific manner of extending the PUCCH format in this embodiment and the manner of selecting the extended PUCCH format by the UE according to the multi-carrier service, or the single-carrier service configured in the RRC connection setup message are the same as those in the above embodiments, and therefore, details are not repeated here.

Further, on the basis of the foregoing embodiments of the present invention, the receiving module 22 may further be configured with multiple PUCCHs in the RRC connection setup message received, and accordingly, the specific manner for the sending module 21 in this embodiment to send the SR message to the base station is as follows: selecting a corresponding PUCCH to transmit the SR message according to the resource type indicated by the SR message, wherein the first PUCCH is used for transmitting the SR message indicating uplink ultra-low delay resources, and the second PUCCH is used for transmitting the SR message indicating uplink non-ultra-low delay resources; the uplink non-ultra-low delay resource in this embodiment is also an uplink resource with a TTI duration equal to 1 ms.

In another possible implementation manner of the present invention, the resource allocation apparatus shown in fig. 10 may be implemented, and specifically, the receiving module 22 is configured to receive an RRC connection setup message sent by a base station, where the RRC connection setup message is configured with a corresponding relationship between a physical uplink control channel PUCCH and a delay requirement indicator value.

And the selecting module 23 is configured to select a corresponding PUCCH according to the determined delay requirement indication value.

A sending module 21, configured to send, to the base station, an SR message through the PUCCH selected by the selecting module 23, where the SR message is used to instruct the base station to allocate, to the UE, an uplink resource of a corresponding length TTI according to the selected PUCCH, where the uplink resource includes an uplink ultra-low delay resource and an uplink non-ultra-low delay resource.

The resource allocation apparatus provided in the embodiment of the present invention is configured to perform operations performed by the UE in the resource allocation method provided in the embodiment of fig. 6 of the present invention, and has corresponding functional modules, which implement similar principles and technical effects, and are not described herein again.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for resource allocation, comprising:

a base station receives an uplink Scheduling Request (SR) message sent by User Equipment (UE), wherein the SR message comprises ultra-low delay service indication information, and the ultra-low delay service indication information comprises an ultra-low delay indicated value;

the base station allocates uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message, and the method comprises the following steps:

2. The method according to claim 1, wherein the indication information of the ultra-low latency service includes an indication that ultra-low latency data is to be transmitted, and the indication that ultra-low latency data is to be transmitted is used to indicate whether the UE currently has data of the ultra-low latency service waiting for transmission; the base station allocates uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, and the method comprises the following steps:

3. The method according to claim 1, wherein the ultra-low latency service indication information further includes an indication that ultra-low latency data is to be transmitted; the base station allocates uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, and the method comprises the following steps:

4. The method according to claim 1 or 3, wherein the ultra-low latency indication value comprises an ultra-low latency level and/or a buffer data volume level of ultra-low latency traffic; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

5. The resource allocation method according to any one of claims 1 to 3, wherein before the base station receives the SR message sent by the UE, the method further comprises:

6. The method according to claim 5, wherein the RRC connection setup message is further configured with a multi-carrier service, or a single-carrier service and a PUCCH format indication;

7. The resource allocation method according to any one of claims 1 to 3, wherein before the base station receives the SR message sent by the UE, the method further comprises:

8. A method for resource allocation, comprising:

user Equipment (UE) sends an uplink Scheduling Request (SR) message to a base station, wherein the SR message comprises ultra-low delay service indication information, the SR message is used for indicating the base station to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message, and the ultra-low delay service indication information comprises an ultra-low delay indicated value; the SR message is used for indicating the base station to allocate uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value when the base station and the UE support the same transmission time interval TTI capability; or, the SR message is used to instruct the base station to preferentially allocate uplink ultra-low delay resources of TTIs having lengths corresponding to the ultra-low delay indicated values according to the TTI capability aggregation between the base station and the UE and the ultra-low delay indicated values when it is determined that the TTI capabilities supported by the base station and the UE are different;

9. The method according to claim 8, wherein the indication information of the ultra-low latency service includes an indication that ultra-low latency data is to be transmitted, and the indication that ultra-low latency data is to be transmitted is used to indicate whether the UE currently has data of the ultra-low latency service waiting for transmission;

10. The method according to claim 8, wherein the ultra-low latency service indication information further includes an indication that ultra-low latency data is ready to be transmitted;

11. The method according to claim 8 or 10, wherein the ultra-low latency indication value comprises an ultra-low latency level and/or a buffer data volume level of ultra-low latency traffic; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

12. The resource allocation method according to any one of claims 8 to 10, wherein before the UE sends the SR message to the base station, the method further comprises:

13. The method according to claim 12, wherein the RRC connection setup message is further configured with a multi-carrier service, or a single-carrier service, or the single-carrier service and a PUCCH format indicator;

14. The resource allocation method according to any one of claims 8 to 10, wherein before the UE sends the SR message to the base station, the method further comprises:

15. A method for resource allocation, comprising:

16. A method for resource allocation, comprising:

17. A resource allocation apparatus provided in a base station, the resource allocation apparatus comprising:

a receiving module, configured to receive an uplink scheduling request SR message sent by user equipment UE, where the SR message includes ultra-low delay service indication information, and the ultra-low delay service indication information includes an ultra-low delay indication value;

an allocating module, configured to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message received by the receiving module, where the allocating module includes:

a judging unit, configured to judge whether transmission time interval TTI capabilities supported by the base station and the UE are the same;

the allocation unit is used for allocating uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value when the judgment unit judges that the TTI capabilities supported by the base station and the UE are the same; and the uplink ultra-low delay resource is preferentially allocated to the TTI with the length corresponding to the ultra-low delay indicated value according to the TTI capability aggregation of the base station and the UE and the ultra-low delay indicated value when the judging unit judges that the TTI capabilities supported by the base station and the UE are different.

18. The apparatus according to claim 17, wherein the ultra-low latency service indication information includes an ultra-low latency data waiting indication, where the ultra-low latency data waiting indication is used to indicate whether the UE currently has data waiting for transmission of an ultra-low latency service;

19. The apparatus according to claim 17, wherein the ultra-low latency traffic indication information further includes an ultra-low latency data pending transmission indication; the allocation module is configured to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information, where the allocating module is configured to:

20. The apparatus according to claim 17 or 19, wherein the ultra-low latency indication value comprises an ultra-low latency level and/or a buffer data volume level of ultra-low latency traffic; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

21. The apparatus according to any of claims 17-19, wherein the apparatus further comprises: a sending module, configured to send a radio resource control, RRC, connection establishment message to the UE before the receiving module receives the SR message sent by the UE, where the RRC connection establishment message is configured with a resource used for the UE to send the SR message and an SR cycle corresponding to the resource, and the RRC connection establishment message is used to instruct the UE to send the SR message according to the configured resource and the SR cycle corresponding to the resource, where the SR cycle corresponding to the resource is configured to be an SR short cycle with a length less than 1 ms.

22. The apparatus according to claim 21, wherein the RRC connection setup message is further configured with a multi-carrier service, or a single-carrier service, or the single-carrier service and a PUCCH format indicator;

23. The apparatus according to any of claims 17-19, wherein the apparatus further comprises: a sending module, configured to send an RRC connection setup message to the UE before the receiving module receives the SR message sent by the UE, where the RRC connection setup message is configured with multiple PUCCHs, and the RRC connection setup message is used to instruct the UE to select a corresponding PUCCH to send the SR message according to a resource type indicated by the SR message, where a first PUCCH is used to send an SR message indicating uplink ultra-low latency resources, and a second PUCCH is used to send an SR message indicating uplink non-ultra-low latency resources.

24. A resource allocation device arranged in a User Equipment (UE), the resource allocation device comprising:

a sending module, configured to send an uplink scheduling request SR message to a base station, where the SR message includes ultra-low delay service indication information, and the SR message is used to indicate the base station to allocate uplink ultra-low delay resources to the UE according to the ultra-low delay service indication information in the SR message, where the ultra-low delay service indication information includes an ultra-low delay indicated value; the SR message is used for indicating the base station to allocate uplink ultra-low delay resources with corresponding length TTI according to the ultra-low delay indicated value when the base station and the UE support the same transmission time interval TTI capability; or, the SR message is used to instruct the base station to preferentially allocate uplink ultra-low delay resources of TTIs having lengths corresponding to the ultra-low delay indicated values according to the TTI capability aggregation between the base station and the UE and the ultra-low delay indicated values when it is determined that the TTI capabilities supported by the base station and the UE are different;

25. The apparatus according to claim 24, wherein the ultra-low latency service indication information includes an ultra-low latency data waiting indication, where the ultra-low latency data waiting indication is used to indicate whether the UE currently has data waiting for transmission of an ultra-low latency service;

26. The apparatus according to claim 24, wherein the ultra-low latency traffic indication information further includes an ultra-low latency data pending transmission indication;

27. The apparatus according to claim 24 or 26, wherein the ultra-low latency indication value comprises an ultra-low latency level and/or a buffer data volume level of ultra-low latency traffic; the ultra-low delay level is used for indicating a requirement level of an ultra-low delay service of the UE on end-to-end delay or a requirement level of the ultra-low delay service of the UE on scheduling delay, and the cache data level of the ultra-low delay service indicates the total amount of the ultra-low delay service data to be transmitted in a cache region of the UE or the data volume of the highest priority ultra-low delay service to be transmitted in the cache region of the UE.

28. The apparatus according to any of claims 24 to 26, wherein the receiving module is further configured to receive a radio resource control, RRC, connection setup message sent by the base station before the sending module sends the SR message to the base station, where a resource used for the UE to send the SR message and an SR cycle corresponding to the resource are configured in the RRC connection setup message;

29. The apparatus according to claim 28, wherein the RRC connection setup message is further configured with a multi-carrier service, or a single-carrier service, or the single-carrier service and a PUCCH format indicator;

30. The apparatus according to any of claims 24 to 26, wherein the receiving module is further configured to receive an RRC connection setup message sent by the base station before the sending module sends the SR message to the base station, where multiple PUCCHs are configured in the RRC connection setup message;

31. A resource allocation apparatus provided in a base station, the resource allocation apparatus comprising:

32. A resource allocation device arranged in a User Equipment (UE), the resource allocation device comprising: