WO2016177221A1 - Procédé, dispositif et système de communication de rapport d'état de tampon - Google Patents

Procédé, dispositif et système de communication de rapport d'état de tampon Download PDF

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Publication number
WO2016177221A1
WO2016177221A1 PCT/CN2016/078120 CN2016078120W WO2016177221A1 WO 2016177221 A1 WO2016177221 A1 WO 2016177221A1 CN 2016078120 W CN2016078120 W CN 2016078120W WO 2016177221 A1 WO2016177221 A1 WO 2016177221A1
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Prior art keywords
buffer status
status report
bsr
format
real
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English (en)
Chinese (zh)
Inventor
刘旭
戴谦
邹伟
艾建勋
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present application relates to, but is not limited to, a wireless communication technology, and in particular, to a method, an apparatus, and a system for reporting a buffer status report.
  • MTC Machine Type Communication
  • massive connections low power consumption, low latency, and high reliability.
  • the huge number of connections is reflected in the number of MTC devices is more than 10 times that of human-to-human communication terminals; low energy consumption is reflected in the fact that MTC terminals have a huge amount of features, so the significance of energy saving is extraordinary; low latency and high reliability are reflected in
  • the MTC device has an end-to-end delay of 1 millisecond or less.
  • MTC equipment often needs to transmit ultra-real-time business data, so that the data processing center can analyze and process the business data in time or make corresponding actions; therefore, research on ultra-real-time services and delay will become an important part of the MTC research process.
  • BSR Buffer status reporting
  • LTE Long Term Evolution
  • RRC Radio Resource Control
  • the base station classifies each logical channel into a corresponding LCG according to its Quality of Service (QoS) attribute through Radio Resource Control (RRC).
  • QoS Quality of Service
  • RRC Radio Resource Control
  • the user equipment only needs to report the BSR for each LCG.
  • Buffer Size when only one LCG has data to send, then report Short BSR or Truncated BSR; the other is Long BSR (Long BSR), as shown in Figure 2, contains 4 Buffer Size, corresponding On the LCG ID (0 to 3), when the user equipment has more than one LCG to send data, the long BSR is triggered, and the long BSR reports the Buffer Size of all the LCGs to the base station.
  • the existing LCG ID field is 2 bits long, so there are 4 LCGs that can be identified.
  • ultra-real-time services services with higher priority than the existing LCGs
  • the degree of discrimination of the original services will be affected to some extent.
  • the method of increasing the length of the LCG ID in the BSR is adopted, the incompatibility problem will occur on the one hand, and the BSR will become significantly larger on the other hand.
  • reporting a large BSR will inevitably bring more delay and The resource is wasted; and in the future, 5G is likely to use a shorter length of Transmission Time Interval (TTI) to transmit the BSR, and a BSR that increases the LCG ID length will impose further restrictions.
  • TTI Transmission Time Interval
  • the embodiment of the invention provides a method, a device and a system for reporting a buffer status report, which can implement a buffer status report of a super real-time service to a base station by a user equipment in a connected state.
  • An embodiment of the present invention provides a method for reporting a buffer status report, including:
  • the user equipment receives format configuration information of a buffer status report (BSR) sent by the base station, where the format configuration information of the buffer status report includes: a format of an ultra-real time service dedicated buffer status report (S-BSR) ;
  • the user equipment When the user equipment detects that the ultra-real-time service-specific buffer status report needs to be reported, the user equipment reports the ultra-real-time service-specific buffer status report in the format of the ultra-real-time service-specific buffer status report.
  • the embodiment of the invention further provides a method for reporting a buffer status report, including:
  • the base station sends the format configuration information of the buffer status report to the user equipment, where the format configuration information of the buffer status report includes: a format of the ultra-real time service dedicated buffer status report;
  • the base station receives the buffer status report reported by the user equipment, and determines the transmission time interval (TTI) length of the resource to be allocated according to the buffer status report.
  • TTI transmission time interval
  • the embodiment of the invention further provides a reporting device for the buffer status report, which is set on the user equipment, and includes:
  • the receiving module is configured to: receive format configuration information of a buffer status report (BSR) sent by the base station, where the format configuration information of the buffer status report includes: an ultra-real-time service dedicated buffer status report (S-BSR) format;
  • BSR buffer status report
  • S-BSR ultra-real-time service dedicated buffer status report
  • the sending module is configured to report the ultra-real-time service-specific buffer status report in a format of the ultra-real-time service-specific buffer status report when the user equipment detects that the ultra-real-time service-specific buffer status report needs to be reported.
  • the embodiment of the invention further provides a reporting device for the buffer status report, which is set at the base station, and includes:
  • the sending module is configured to: send format configuration information of the buffer status report to the user equipment, where the format configuration information of the buffer status report includes: a format of a super real-time service dedicated buffer status report;
  • the processing module is configured to: receive a buffer status report reported by the user equipment, and determine a transmission time interval (TTI) length of the to-be-allocated resource according to the buffer status report.
  • TTI transmission time interval
  • An embodiment of the present invention further provides a reporting system for a buffer status report, including: a user equipment and a base station;
  • the base station is configured to: send format configuration information of the buffer status report to the user equipment, where the format configuration information of the buffer status report includes: a format of a super real-time service dedicated buffer status report;
  • the user equipment is configured to report the ultra-real-time service-specific buffer status report in a format of the ultra-real-time service-specific buffer status report when it is detected that the ultra-real-time service-specific buffer status report needs to be reported;
  • the base station is further configured to: receive a buffer status report reported by the user equipment, and determine a transmission time interval (TTI) length of the to-be-allocated resource according to the buffer status report.
  • TTI transmission time interval
  • the embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by a processor to implement a reporting method of a buffer status report applied to a base station.
  • the embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by a processor to implement a reporting method applied to a buffer status report of a user equipment.
  • the user equipment receives the format configuration information of the BSR sent by the base station, where the format configuration information of the BSR includes: a format of an ultra-real time service dedicated buffer status report (S-BSR); when the user equipment detects the need When the ultra-real-time service-specific buffer status report is reported, the user equipment reports the ultra-real-time service-specific buffer status report in the format of the ultra-real-time service-specific buffer status report.
  • S-BSR ultra-real time service dedicated buffer status report
  • the embodiment of the present invention not only satisfies the compatibility with the existing buffer status report, but also achieves the purpose of identifying the ultra-real-time service logical channel group, and at the same time, the user equipment has the report.
  • the ability to report buffer status for ultra-real-time services (priority over normal services).
  • the periodic buffer status report period (periodic S-BSR timer) is configured by a reasonable buffer status report reporting method and a super-real-time service dedicated buffer status report configured by the base station.
  • reTX S-BSR timer retransmission of the ultra-real-time service-specific buffer status report timer (reTX S-BSR timer), which effectively reduces the reporting delay of the ultra-real-time service-specific buffer status report (S-BSR).
  • the base station determines the TTI length of the resource to be allocated according to the buffer status report reported by the user equipment, and implements resource optimization configuration.
  • FIG. 1 is a schematic diagram of a format of a short BSR or a truncated BSR in a related LTE system
  • FIG. 2 is a schematic diagram of a format of a long BSR in a related LTE system
  • FIG. 3 is a flowchart of a method for reporting a buffer status report according to an embodiment of the present invention
  • FIG. 4 is another flowchart of a method for reporting a buffer status report according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a long S-BSR in a first format according to an embodiment of the present disclosure
  • FIG. 6 is another schematic diagram of a long S-BSR in a first format according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a long S-BSR in a second format according to an embodiment of the present invention.
  • FIG. 8 is another schematic diagram of a long S-BSR in a second format according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a format of a MAC PDU according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic flowchart of a report of a buffer status report according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a device for reporting a buffer status report according to an embodiment of the present disclosure.
  • FIG. 12 is another schematic diagram of a reporting device for a buffer status report according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for reporting a buffer status report according to an embodiment of the present invention. As shown in FIG. 3, the method for reporting a buffer status report provided by this embodiment includes the following steps:
  • Step 11 The user equipment (UE) receives the format configuration information of the buffer status report (BSR) sent by the base station, where the format configuration information of the buffer status report includes: an ultra-real-time service dedicated buffer status report (S-BSR) format.
  • BSR buffer status report
  • S-BSR ultra-real-time service dedicated buffer status report
  • the format of the ultra-real-time service dedicated buffer status report includes: short or truncated S-BSR, long S-BSR in the first format, long S-BSR in the second format, short or truncated S -BSR: a BSR that maps only one LCG buffer data size in the ultra-real-time service logical channel group (LCG);
  • the long S-BSR in the first format refers to a BSR that maps the amount of data of all LCG buffers of the ultra-real-time service;
  • the long S-BSR of the second format refers to the ability to map the amount of data in the ultra-real-time service LCG buffer.
  • the BSR of the normal business LCG buffer data size includes: short or truncated S-BSR, long S-BSR in the first format, long S-BSR in the second format, short or truncated S -BSR: a BSR that maps only one LCG buffer data size in the ultra-real-time service logical channel group (LCG
  • the base station notifies the user equipment of the format configuration information of the buffer status report by configuring an S-BSR related field in the Medium Access Control (MAC) layer control parameter.
  • the format configuration information of the buffer status report includes: a long S-BSR in a first format and/or a long S-BSR in a second format.
  • the format configuration information includes, for example, a short or truncated S-BSR, a long S-BSR of the first format, and/or a long S-BSR of the second format.
  • the format configuration information of the buffer status report further includes: a short or truncated BSR of the buffer status report shown in FIG. 1 and a long BSR shown in FIG. 2.
  • Step 12 When the user equipment detects that the ultra-real-time service-specific buffer status report needs to be reported, the user equipment reports the ultra-real-time service-specific buffer status report in the format of the ultra-real-time service-specific buffer status report.
  • the user equipment triggers reporting the ultra-real-time service dedicated buffer status report when at least one of the following events is detected:
  • Any one of all logical channels of the ultra real-time service logical channel group (LCG) has data to be transmitted;
  • the periodic ultra-real-time service dedicated buffer status reporting timer (periodic S-BSR timer) times out;
  • retransmission ultra-real-time service dedicated buffer status report timer (reTX S-BSR timer) times out;
  • the number of padding bits is greater than or equal to the sum of the number of bits of the medium access control (MAC) control unit and the corresponding subheader of the ultra real time service dedicated buffer status report.
  • MAC medium access control
  • the method further includes: receiving, by the user equipment, the configured periodic ultra-real-time service-specific buffer status report timer and the retransmission ultra-real-time service-specific buffer status report timer from the base station.
  • step 12 includes:
  • the format configuration information includes a short or truncated S-BSR, a long S-BSR in the first format:
  • the first format is simultaneously sent in one MAC PDU.
  • the first format long S is preferentially sent in one MAC PDU. -BSR, or, preferentially send short or truncated S-BSRs;
  • the format configuration information includes a short or truncated S-BSR and a long S-BSR in the second format:
  • the long S-BSR in the second format is sent in a MAC PDU, and the report of the normal common service buffer status is cancelled.
  • the format configuration information includes a short or truncated S-BSR, a long S-BSR in the first format, and a long S-BSR in the second format:
  • the first format is simultaneously sent in one MAC PDU.
  • S-BSR and cancel the reporting of a separate normal service buffer status report;
  • the ultra-real-time service-specific buffer status report and the normal service buffer status report need to be reported, and the amount of resources currently used to send the buffer status report is less than the preset value, the short or truncated S is preferentially sent in one MAC PDU. -BSR or preferentially send a long S-BSR in the first format.
  • step 12 further includes: the sub-head of the MAC PDU of the user equipment through the uplink shared channel
  • the LCID field configured in the department identifies the format of the buffer status report.
  • FIG. 4 is another flowchart of a method for reporting a buffer status report according to an embodiment of the present invention. As shown in FIG. 4, the method for reporting a buffer status report provided by this embodiment includes the following steps:
  • Step 21 The base station sends format configuration information of the buffer status report to the user equipment, where the format configuration information of the buffer status report includes: a format of the ultra-real time service dedicated buffer status report;
  • Step 22 The base station receives a buffer status report reported by the user equipment, and determines a transmission time interval (TTI) length of the to-be-allocated resource according to the buffer status report.
  • TTI transmission time interval
  • the base station when the buffer status report received by the base station includes an ultra-real-time service-specific buffer status report and the ultra-real-time service dedicated buffer status report indicates that the ultra-real-time service LCG buffer data quantity is greater than zero, the base station is The ultra-real-time service allocates a short TTI-length resource, a normal TTI-length resource, or a plurality of TTI-length resources, where the short TTI is a TTI with a length less than 1 millisecond, and the normal TTI is a TTI having a length equal to 1 millisecond.
  • S-BSR ultra-real-time service dedicated buffer status report
  • the S-BSR is classified into a short S-BSR or a truncated S-BSR and a long S-BSR.
  • the long S-BSR supports the normal service buffer status report according to whether it is available.
  • the capabilities are divided into two formats: the first format and the second format.
  • the long S-BSR of the first format only has the capability of reporting the status report of the ultra-real-time service buffer, that is, it can only map the amount of the logical channel group buffer corresponding to the ultra-real-time service; the long S-BSR of the second format has both The ability to report the ultra-real-time service buffer status report and the common service status report, that is, the size of the logical channel group buffer data amount corresponding to the ultra-real time service and the logical channel group buffer data amount corresponding to the common service.
  • the domain length of the LCG ID of the long S-BSR is 1 bit (bit), 2 bits, or other values.
  • the domain length of the LCG ID of the long S-BSR in the first format is 1 bit, two super-real-time service LCGs can be mapped.
  • the logical channel group of the common service is marked as LCG (0 to 3)
  • the two ultra-real-time service LCGs mapped at this time are marked as LCG 4 and LCG 5.
  • the priority of the LCGs (4 to 5) is higher than that of the LCGs (0 to 3), and the LCGs 4 and LCGs 5 map the super-real-time services of different priorities.
  • the long S-BSR of the first format which is composed of the size of the ultra-real time service buffer data mapped by the LCG (4 to 5), is as shown in FIG. 5.
  • "R” is a reserved bit, and is now set to 0.
  • the present application does not limit the position of "R”. In other embodiments, other locations may also be used.
  • the domain length of the LCG ID of the long S-BSR in the first format is 2 bits
  • four ultra-real-time service LCGs may be mapped.
  • the logical channel group of the normal service is marked as LCG (0 to 3)
  • the four ultra-real-time service LCGs mapped at this time are marked as LCG 4, LCG 5, LCG6, and LCG7.
  • the priority of LCG (4 ⁇ 7) is higher than that of LCG (0 ⁇ 3), and LCG (4 ⁇ 7) maps super-real-time services of different priorities.
  • the long S-BSR of the first format which is composed of the size of the ultra-real time service buffer data mapped by the LCG (4-7), is as shown in FIG. 6.
  • the domain length of the LCG ID of the long S-BSR in the second format is 1 bit, two super real-time service LCGs may be mapped.
  • the logical channel group of the normal service is marked as LCG (0 to 3)
  • the two ultra-real-time service LCGs mapped at this time can be marked as LCG 4 and LCG 5.
  • the long S-BSR of the second format maps the ultra-real-time service LCG (4 to 5) and the normal service LCG because the long S-BSR of the second format has the capability of simultaneously reporting the ultra-real-time service and the normal service buffer status report. (0 to 3)
  • the size of the buffer data as shown in Figure 7.
  • the domain length of the LCG ID of the long S-BSR in the second format is 2 bits
  • four super real-time service LCGs may be mapped.
  • the logical channel group of the normal service is marked as LCG (0 to 3)
  • the four ultra-real-time service LCGs mapped at this time can be marked as LCG 4, LCG 5, LCG6, and LCG7.
  • the long S-BSR of the second format which is composed of the size of the data volume of the four ultra-real-time service LCG buffers and the amount of data of the four normal service LCG buffers, is as shown in FIG. 8.
  • the domain length of the LCG ID of the S-BSR can be selected according to the level of the user's ultra-real-time service priority.
  • the domain length of the LCG ID is selected to be 1 bit.
  • the domain length of the LCG ID can be selected as 2 bits. .
  • the base station may configure a long S-BSR in the first format or the second format for the user equipment, or configure a long S-BSR in the first format and the second format for the user equipment.
  • the user equipment is based, for example, on the characteristics of the buffer data in the current TTI and the resources available for transmitting the buffer status report. In the case, choose the appropriate S-BSR format.
  • the long S-BSR in the second format may be selected; when the current TTI only has the ultra-real-time service LCG (multiple If there is data to be sent, you can select the long S-BSR in the first format or the long S-BSR in the second format. If only one LCG in the ultra-real-time service LCG has data to send, you can select short or truncated. Short S-BSR.
  • the format of the S-BSR is indicated by the LCID field in the MAC PDU subheader, and an S-BSR MAC control element corresponds to a MAC subheader. Since the S-BSR is introduced, the LCID value in the MAC PDU subheader also needs to be configured accordingly, as shown in Table 1. In the original LCID value, a part of the LCID value is reserved, and a part can be selected as an S-BSR related indication. In this embodiment, the "10001" is used to indicate the truncation of the S-BSR, and the "10010" is used to indicate the short S.
  • LCID value 00000 Common control channel (category 0 users) 00001-01010 Logical channel identification 01011 Common control channel (other users) 01100-10000 Reserved 10001 Truncated S-BSR 10010 Short S-BSR 10011 Long S-BSR (first format) 10100 Long S-BSR (second format) 10101 Fill S-BSR 10110 Truncated side link BSR 10111 Side link BSR 11000 Dual connectivity power reservation report
  • the reporting trigger condition of the ultra-real time service dedicated buffer status report (S-BSR) provided in this embodiment is described.
  • the reporting of the S-BSR is triggered:
  • the data needs to be sent, and the long S-BSR in the first format or the long S-BSR in the second format is selected for reporting, wherein the S-BSR
  • the specific format of the user equipment depends on the format configuration of the S-BSR of the user equipment and whether the data of the normal service logical channel group in the current TTI needs to be sent. If the format of the long S-BSR of the user equipment exists, the first format and the second format exist. And the normal service logical channel group also has data to be sent.
  • the long S-BSR in the second format can be selected for reporting and canceling the reporting of the normal service BSR, or the long S-BSR in the first format can be selected for reporting; If only one logical channel group in the ultra-real-time logical channel group has data to be transmitted, the short- or truncated S-BSR may be selected for reporting. If the normal service logical channel group also needs to be sent in the current TTI, the data may be selected. The long S-BSR of the second format is reported and the reporting of the normal service BSR is cancelled.
  • periodic S-BSR timer When the periodic ultra-real-time service-specific buffer status report timer (periodic S-BSR timer) times out, the S-BSR is triggered to be reported.
  • Such an S-BSR is called a periodic S-BSR;
  • the S-BSR can be reported to the S-BSR in the manner of the previous configuration.
  • the reTX S-BSR timer is started or restarted; in addition to truncating the S-BSR, starting or restarting the periodic S -BSR timer;
  • the S-BSR can be reported to the S-BSR or reported to the S-BSR according to the latest one.
  • the number of padding bits is greater than or equal to the sum of the short or truncated S-BSR MAC control unit and the number of bits of the MAC subheader, but less than the bit of the long S-BSR MAC control unit of the first format and its MAC subheader
  • the sum of the numbers, and if there is more than one logical channel group in the current TTI, the data is to be sent, and the short or truncated S-BSR of the logical channel group of the ultra-real time service with higher priority is reported; if the number of padding bits is greater than or And the sum of the number of bits of the long S-BSR MAC control unit and the MAC sub-header of the first format, but less than the sum of the number of bits of the long S-BSR MAC control unit of the second format and its MAC sub-header, reporting the first format The long S-BSR is reported; if the number of padding bits is greater than or equal to the sum of the number of bits of the long S-BSR MAC
  • the conventional S-BSR and the periodic S-BSR have higher priority than the filled S-BSR and the normal service BSR.
  • This embodiment describes the case where the common service buffer status report and the ultra-real time service dedicated buffer status report coexist.
  • the common service BSR and the ultra-real-time service S-BSR coexist
  • the normal service BSR and the ultra-real-time service S-BSR are simultaneously transmitted in one MAC PDU, as shown in FIG.
  • the MAC PDU includes the MAC control unit of the normal service BSR and the ultra-real-time service S-BSR, and correspondingly has two corresponding sub-heads in the MAC header, and is identified by the LCID value in the sub-header.
  • LCID values are determined by The base station is configured by using RRC (Radio Resource Control) signaling; optionally, the normal service BSR and the ultra-real-time service S-BSR are separately transmitted in one MAC PDU, that is, the normal service is sent in one MAC PDU.
  • RRC Radio Resource Control
  • the BSR either sends the ultra-real-time service S-BSR.
  • the user equipment selects the sending manner of the buffer status report according to the situation that the normal service BSR, the super real-time service S-BSR is triggered, the format configuration of the long S-BSR, and the resource condition for sending the buffer status report.
  • the long S-BSR or the short or truncated S-BSR of the first format of the normal service BSR and the ultra-real time service is triggered, and the resources for transmitting the buffer status report are sufficient
  • the common service BSR and the super can be selected to be simultaneously transmitted.
  • FIG. 10 is a schematic flowchart of a report of a buffer status report according to an embodiment of the present invention. As shown in FIG. 10, the description of this embodiment is as follows:
  • Step 901 The user equipment sends a radio resource control (RRC) connection request to the base station, where the user equipment carries the initial non-access stratum identifier of the user equipment, the establishment cause, and the ultra-real-time service through the uplink common control channel (UL-CCCH). Identification and other information;
  • RRC radio resource control
  • Step 902 The base station sends an RRC connection setup message to the user equipment, where the message includes the LCG attribute configured by the base station and the main configuration (MAC-Mainconfig) of the media access control layer related to the ultra-real-time service, where the base station configures the user equipment.
  • the message includes the LCG attribute configured by the base station and the main configuration (MAC-Mainconfig) of the media access control layer related to the ultra-real-time service, where the base station configures the user equipment.
  • the LCG corresponding to the ultra-real-time service and the following parameters are added in the MAC-Mainconfig: periodic ultra-real-time service dedicated buffer status report timer (periodic S-BSR timer), retransmission ultra-real-time service dedicated buffer status report timing (reTX S-BSR timer); for the reTX S-BSR timer, the base station needs to set an accurate timer time configuration according to the propagation environment of the channel and the processing delay of the base station, wherein the reTX S-BSR timer is accurate. Configuration, which is beneficial to reducing the reporting delay of the S-BSR;
  • Step 903 The user equipment sends an RRC connection complete message to the base station.
  • Step 904 When any logical channel of the logical channel group has data to be sent, or the buffer status report is triggered, the user equipment performs buffer data analysis to determine an appropriate buffer status report format and reporting manner;
  • the user equipment analyzes the data to be sent by the buffer, including the type of the analyzed data, the triggering condition of the normal service BSR and the ultra-real-time service S-BSR, and the amount of resources and TTI available for sending the buffer status report in the current TTI.
  • the length determines the reporting mode of the buffer status report and the format selection of the S-BSR;
  • the ultra-real-time service S-BSR When the ultra-real-time service S-BSR is triggered and the resources for transmitting the buffer status report are limited (that is, less than the preset value), and the normal service BSR is also triggered, the common service BSR and the ultra-real-time service S- are separately selected.
  • the BSR that is, the S-BSR is preferentially sent in a MAC PDU (such as a short or truncated S-BSR or a long S-BSR in the first format);
  • ultra-real-time service S-BSR When the ultra-real-time service S-BSR is triggered and the resources for transmitting the buffer status report are sufficient (ie, greater than or equal to the preset value), and the normal service BSR is also triggered, then the common service BSR is selected to be sent separately or simultaneously.
  • Ultra-real-time service S-BSR if you choose to send the normal service BSR and the ultra-real-time service S-BS separately, if the ultra-real-time service has more than one logical channel group and there is data to be sent, you can choose to send the second format in one MAC PDU.
  • the S-BSR chooses to send both the normal service BSR and the ultra-real-time service S-BSR, if the ultra-real-time service has more than one logical channel group and there is data to be sent, then the first S-BSR of the first format is sent in one MAC PDU.
  • ordinary business BSR
  • the length of the first format can be selected to be simultaneously transmitted in one MAC PDU.
  • a long S-BSR in the second format when there is only a long S-BSR in the second format, when the super real-time service S-BSR is triggered, a long S-BSR in the second format or a short or truncated S-BSR is sent in one MAC PDU;
  • the long S-BSR in the first format or the short or truncated S-BSR is sent on the shorter TTI, thereby saving the shorter length TTI.
  • Step 905 The user equipment reports the buffer status report by using the determined buffer status report format and the reporting mode.
  • Step 906 The base station determines, according to the buffer status report reported by the user equipment, the TTI length of the resource to be allocated.
  • the base station may select: a short TTI-length resource, a normal TTI-length resource, or a different TTI-length resource, where the short TTI is A TTI with a length less than 1 millisecond, and a normal TTI is a TTI having a length equal to 1 millisecond;
  • the ultra-real-time service For the user equipment with the short TTI length capability, and the ultra-real-time service has the characteristics of small data, it is suitable for allocating resources with a short TTI length; for a user equipment that does not have the short TTI length capability, the normal TTI length is allocated. Resources; for users with short TTI length capabilities, and ultra-real-time services have both small data and big data services, in which case they are allocated resources of different TTI lengths.
  • the user equipment can have the capability of reporting the status of the ultra-real-time service buffer; on the other hand, the base station can report the status of the ultra-real-time service buffer as The ultra-real-time service allocates TTI resources of appropriate length to properly allocate resources.
  • the embodiment of the present invention further provides a reporting device for a buffer status report, which is disposed on a user equipment, and includes:
  • the receiving module 110 is configured to: receive format configuration information of the BSR sent by the base station, where the format configuration information of the buffer status report includes: a format of an ultra-real time service dedicated buffer status report (S-BSR);
  • S-BSR ultra-real time service dedicated buffer status report
  • the sending module 111 is configured to: when the user equipment detects that the ultra-real-time service needs to be reported When the status report is rushed, the ultra-real-time service-specific buffer status report is reported in the format of the ultra-real-time service-specific buffer status report.
  • the format of the ultra-real-time service S-BSR includes: short or truncated S-BSR, long S-BSR in the first format, and long S-BSR in the second format; short or truncated S-BSR refers to: only super-map The BSR of the LCG buffer data size in the real-time service LCG; the long S-BSR of the first format refers to the BSR that maps the amount of data of all LCG buffers of the ultra-real-time service; the long S-BSR of the second format refers to: The BSR of the ultra-real-time service LCG buffer data size and the normal service LCG buffer data size.
  • the format configuration information of the buffer status report includes: a long S-BSR of the first format and/or a long S-BSR of the second format.
  • the sending module 111 is configured to:
  • the format configuration information includes a short or truncated S-BSR, a long S-BSR of the first format:
  • the first format is simultaneously sent in one MAC PDU.
  • the first format long S is preferentially sent in one MAC PDU. -BSR, or, preferentially send short or truncated S-BSRs;
  • the format configuration information includes a short or truncated S-BSR and a long S-BSR in the second format:
  • the long S-BSR in the second format is sent in a MAC PDU, and the report of the normal common service buffer status is cancelled.
  • the format configuration information includes a short or truncated S-BSR, a long S-BSR in the first format, and a long S-BSR in the second format:
  • the first format is simultaneously sent in one MAC PDU.
  • S-BSR and cancel the reporting of a separate normal service buffer status report;
  • the ultra-real-time service-specific buffer status report and the normal service buffer status report need to be reported, and the amount of resources currently used to send the buffer status report is less than the preset value, the short or truncated S is preferentially sent in one MAC PDU. -BSR or preferentially send a long S-BSR in the first format.
  • the sending module 111 is further configured to: identify a format of the buffer status report by using an LCID field configured in a subheader of the MAC PDU of the uplink shared channel.
  • the device further includes: a detecting module, configured to: trigger the reporting of the ultra-real-time service dedicated buffer status report when at least one of the following events is detected:
  • Any of the logical channels of the ultra real-time service LCG has data to be transmitted;
  • the periodic ultra-real-time service dedicated buffer status report timer expires
  • the number of padding bits is greater than or equal to the sum of the number of bits of the MAC Control Element and the corresponding subheader of the Super Real Time Service Dedicated Buffer Status Report.
  • the receiving module 110 is further configured to: receive, from the base station, a configured periodic ultra-real-time service-specific buffer status report timer and a retransmission ultra-real-time service-dedicated buffer status report timer.
  • the receiving module 110 is, for example, a communication element having an information receiving capability such as a receiver
  • the transmitting module 111 is, for example, a communication element having an information transmission capability such as a transmitter
  • a detecting module such as a detector having an information detecting capability
  • an embodiment of the present invention further provides a reporting device for a buffer status report, which is disposed at a base station. As shown in FIG. 12, the device includes:
  • the sending module 210 is configured to: send format configuration information of the buffer status report to the user equipment, where the format configuration information of the buffer status report includes: a format of the ultra-real time service dedicated buffer status report;
  • the processing module 211 is configured to: receive a buffer status report reported by the user equipment, and determine a TTI length of the resource to be allocated according to the buffer status report.
  • the processing module 211 is configured to: when the received buffer status report includes an ultra real-time service-specific buffer status report and the ultra-real-time service dedicated buffer status report indicates the ultra-real-time service LCG
  • the amount of data in the buffer is greater than zero, a short TTI length resource, a normal TTI length resource, or multiple TTI length resources are allocated for the ultra-real time service, where the short TTI is a TTI with a length less than 1 millisecond, and the normal TTI is a length equal to 1. TTI of milliseconds.
  • the transmitting module 210 is, for example, a communication element having an information transmission capability such as a transmitter, and the processing module 211 is an element having information processing capability such as a processor.
  • the present application is not limited thereto, and the functions of the above modules may be implemented, for example, by a processor executing a program/instruction stored in a memory.
  • the embodiment of the present invention further provides a reporting system for a buffer status report, including: a user equipment and a base station; and a base station, configured to: send format configuration information of a buffer status report to the user equipment, where the buffer status report is
  • the format configuration information includes: a format of the ultra-real-time service-specific buffer status report; the user equipment is set to: when it is detected that the ultra-real-time service-specific buffer status report needs to be reported, the ultra-real-time service-specific buffer status report is reported in the format of the super-real-time service-specific buffer status report.
  • the real-time service-specific buffer status report; the base station is further configured to: receive a buffer status report reported by the user equipment, and determine a TTI length of the to-be-allocated resource according to the buffer status report.
  • the user equipment and the base station are the same as the reporting device of the buffer status report described in the foregoing embodiments, and thus are not described herein.
  • the user equipment has the capability of reporting the status of the ultra-real-time service buffer by defining an ultra-real-time service-specific buffer status report (S-BSR).
  • S-BSR can be used to increase the priority of the user service.
  • S-BSR corresponding timer is used to effectively reduce the reporting delay of the S-BSR.
  • resources are effectively used to report buffer status reports including ultra-real-time services.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by a processor to implement a reporting method of a buffer status report applied to a base station.
  • an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, which are implemented by a processor to implement a reporting method applied to a buffer status report of a user equipment.
  • the integrated modules described in the embodiments of the present invention may also be stored in a computer readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, a server, or a network device, etc.) is caused to perform all or part of the method of the embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
  • each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function.
  • This application is not limited to any specific combination of hardware and software.
  • the embodiment of the invention provides a method, a device and a system for reporting a buffer status report.
  • a dedicated buffer status report for the ultra-real time service By setting a dedicated buffer status report for the ultra-real time service, the compatibility with the existing buffer status report is satisfied, and the identifier ultra-real time is achieved.
  • the purpose of the service logical channel group, and the user equipment has the ability to report the buffer status report of the ultra-real time service (priority higher than the normal service).

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

Abstract

Selon l'invention, un procédé de communication de rapport d'état de tampon (BSR) comprend les étapes suivantes : recevoir, par un équipement utilisateur (UE), des informations de configuration de format d'un BSR transmis par une station de base, où les informations de configuration de format de BSR comprennent un format d'un BSR spécifique (S-BSR) de service plus rapide que le temps réel ; et lorsque l'UE détecte qu'il est nécessaire de communiquer un S-BSR, communiquer, par l'UE, le S-BSR par l'intermédiaire du format du B-BSR. Le procédé permet à l'UE dans un état connecté de communiquer le S-BSR à la station de base.
PCT/CN2016/078120 2015-09-11 2016-03-31 Procédé, dispositif et système de communication de rapport d'état de tampon Ceased WO2016177221A1 (fr)

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