Abstract
A method and related apparatuses for Contention Based (CB) uplink transmission are provided by the present invention. And the method includes: configuring CB user group numbers and configuring a same CB Radio Network Temporary Identifier (CB-RNTI) for multiple CB user groups; for the multiple CB user groups having the same CB-RNTI configuring a same CB Grant. With the present invention it is not necessary to send a CB Grant for every CB user group so that the resource overhead for CB Grant transmission is reduced and thus the occurring probability of scheduling blocking is reduced.
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5G | 05/08/2019 | ISLD-201908-008 | HUAWEI |
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Specification Information
Specification Information
Technologies
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US2013107838A1 | 5G | 05/08/2019 | ISLD-201908-008 | HUAWEI |
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US2013107838A1 | 4G | 26/10/2022 | ISLD-202210-036 | HUAWEI |
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EP2584850A1 | 5G | 05/08/2019 | ISLD-201908-008 | HUAWEI |
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WO2011157188A1 | 5G | 05/08/2019 | ISLD-201908-008 | HUAWEI |
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CN102291826A | 4G | 26/10/2022 | ISLD-202210-036 | HUAWEI |
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Technologies
Scheduling
Product
Base Station (eNB/gNB)
Use Cases
Services
Claim
1. A configuration method for contention based uplink transmission, comprising:
configuring contention based user group numbers and configuring a same contention based radio network temporary identifier CB-RNTI for multiple contention based user groups; and
configuring a same contention based uplink grant CB Grant for the multiple contention based user groups having the same CB-RNTI, wherein the CB Grant comprises multiple schedule domains, the contention based user group numbers respectively correspond to schedule domain numbers for identifying the schedule domains, the schedule domains indicate schedule information for allocating uplink frequency domain resources;
wherein the CB Grant is carried on a common search space, and the number of information bits of the CB Grant is the same as the number of information bits of downlink control information of one of format 3/3 A or format 1C.
2. The method of claim 1, wherein configuring the contention based user group numbers and configuring the same contention based radio network temporary identifier CB-RNTI for the multiple contention based user groups comprises:
configuring the contention based user group number and configuring the same contention based radio network temporary identifier CB-RNTI for the multiple contention based user groups by using a higher layer signaling.
3. The method of claim 1, further comprising:
configuring partial schedule information required by the contention based uplink transmission, the partial schedule information is one or more of modulation and coding scheme, power control command, size of frequency domain resource, resource allocation scheme, frequency hopping indication and cyclic shift indication.
4. The method of claim 1, wherein the redundancy bits of the schedule domain of the CB Grant are used for indicating one or more of virtual cyclic redundancy check, power control command, modulation and coding scheme, redundancy version, frequency domain frequency modulation information and cyclic shift indication, a channel state information request, resource allocation type, and
precoding information and number of layers.
5. The method of claim 1, wherein allocating the uplink frequency domain resource comprises:
allocating continuous frequency domain resource in the uplink frequency domain resource in a continuous frequency domain resource allocation manner, wherein indicating only a starting point of the continuous frequency domain resource in allocating; and/or
allocating noncontinuous frequency domain resource in the uplink frequency domain resource in a noncontinuous frequency domain resource allocation manner, wherein limiting the number of noncontinuous frequency domain clusters in allocating, and indicating only a starting point of each of the noncontinuous frequency domain clusters.
6. The method of claim 5, wherein indicating only the starting point of the continuous frequency domain resource comprises:
indicating one of all available starting points in the uplink frequency domain resource according to the size of frequency domain resource of a currently-configured transmission packet; or
indicating one of all available starting points in the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet; or
indicating one of all available starting points in a portion of the uplink frequency domain resource according to a size of frequency domain resource of a currently-configured transmission packet; or
indicating one of all available starting points in a portion of the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet.
7. The method of claim 5, wherein indicating only the starting point of each of the noncontinuous frequency domain resource clusters comprises:
indicating one of all available starting points in the uplink frequency domain resource according to the size of frequency domain resource of a currently-configured transmission packet; or
indicating one of all available starting points in the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet; or
indicating one of all available starting points in a portion of the uplink frequency domain resource according to a size of frequency domain resource of a currently-configured transmission packet; or
indicating one of all available starting points in a portion of the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet.
8. A computer program product, comprising computer program code stored on a nontransitory storage medium, which, when executed by a computer unit, will cause the computer unit to perform the steps of a user terminal according to claim 1.
9. The method of claim 1, further comprising:
configuring a contention based user number for each of the contention based users in each of the contention based user groups by a dedicated radio resource control signaling.
10. The method of claim 9, further comprising:
each of the multiple schedule domains of the CB Grant further comprises a user indication domain, and the user indication domain is used for indicating the contention based user number in the contention based user group.
11. A method for contention based uplink transmission, comprising:
acquiring contention based user group numbers and a same contention based radio network temporary identifier CB-RNTI configured for multiple contention based user groups;
monitoring a contention based uplink grant CB Grant, according to the CB-RNTI, to determine schedule information required by the contention based uplink transmission, the schedule information comprises contention based uplink transmission resource, the CB Grant comprises several schedule domains, and the contention based user group numbers respectively correspond to schedule domain numbers used for identifying the schedule domains; and
transmitting uplink data or reporting buffer status report by using the contention based uplink transmission resource granted by the CB Grant according to the determined schedule information required by the contention based uplink transmission;
wherein the CB Grant is carried on a common search space, and the number of information bits of the CB Grant is the same as the number of information bits of downlink control information of one of format 3/3 A or format 1C.
12. The method of claim 11, further comprising:
acquiring partial schedule information, the partial schedule information is one or more of modulation and coding scheme, power control command, size of frequency domain resource, resource allocation scheme, frequency hopping indication and cyclic shift indication.
13. The method of claim 11, wherein monitoring the contention based uplink grant CB Grant to determine the schedule information required by the contention based uplink transmission comprises:
monitoring the CB Grant matched with the CB-RNTI according to the acquired CB-RNTI;
reading schedule information indicated by the schedule domain of the CB Grant corresponding to the contention based user group number according to the acquired contention based user group number; and
determining available contention based uplink transmission resource according to the read schedule information.
14. The method of claim 13, further comprising:
acquiring a contention based user number by receiving a dedicated radio resource control signaling.
15. The method of claim 13, wherein monitoring the contention based uplink grant CB Grant to determine the schedule information required by the contention based uplink transmission comprises:
monitoring the CB Grant matched with the CB-RNTI according to the acquired CB-RNTI;
reading schedule information indicated by the schedule domain of the CB Grant corresponding to the contention based user group number according to the acquired contention based user group number; and
determining available contention based uplink transmission resource according to the acquired contention based user number and the read schedule information.
16. A base station, comprising:
a processor configured to configure contention based user group numbers and configure a same contention based radio network temporary identifier CB-RNTI for multiple contention based user groups; and
the processor configured to configure a same contention based uplink grant CB Grant for the multiple contention based user groups having the same CB-RNTI configured by the processor, the CB Grant comprises multiple schedule domains, the contention based user group numbers configured by the processor respectively correspond to schedule domain numbers for identifying the schedule domains of the CB Grant configured by the processor, the schedule domains indicate schedule information for allocating uplink frequency domain resource;
wherein the CB Grant is carried on a common search space, and the number of information bits of the CB Grant is the same as the number of information bits of downlink control information of one of format 3/3 A or format 1C.
17. The base station of claim 16, wherein
the processor is further configured to configure the contention based user group numbers and configure the same contention based radio network temporary identifier CB-RNTI for the multiple contention based user groups by using a higher layer signaling.
18. The base station of claim 16, wherein
the processor is further configured to configure partial schedule information required by the contention based uplink transmission, the partial schedule information is one or more of modulation and coding scheme, power control command, size of frequency domain resource, resource allocation scheme, frequency hopping indication and cyclic shift indication.
19. The base station of claim 16, wherein the processor is further configured to: allocate continuous frequency domain resource in the uplink frequency domain resource in a continuous frequency domain resource allocation manner, and indicate only a starting point of the continuous frequency domain resource in allocating; and/or
allocate noncontinuous frequency domain resource in the uplink frequency domain resource in a noncontinuous frequency domain resource allocation manner, limit the number of noncontinuous frequency domain clusters and indicate only starting points of the noncontinuous frequency domain clusters in allocating.
20. The base station of claim 19, wherein the processor is further configured to:
indicate one of all available starting points in the uplink frequency domain resource according to a size of frequency domain resource of a currently-configured transmission packet; or
indicate one of all available starting points in the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet; or
indicate one of all available starting points in a portion of the uplink frequency domain resource according to a size of frequency domain resource of a currently-configured transmission packet; or
indicate one of all available starting points in a portion of the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet.
21. The base station of claim 19, wherein the processor is further configured to:
indicate one of all available starting points in the uplink frequency domain resource according to a size of frequency domain resource of a currently-configured transmission packet; or
indicate one of all available starting points in the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet; or
indicate one of all available starting points in a portion of the uplink frequency domain resource according to a size of frequency domain resource of a currently-configured transmission packet; or
indicate one of all available starting points in a portion of the uplink frequency domain resource at an interval of several resource blocks according to a size of frequency domain resource of a currently-configured transmission packet.
22. The base station of claim 16, wherein
the processor configures the redundancy bits of the same CB Grant to indicate one or more of virtual cyclic redundancy check, power control command, modulation and coding scheme, redundancy version, frequency domain frequency modulation information and cyclic shift indication.
23. The base station of claim 22, wherein the processor is further configured to configure a contention based user number for each of the contention based user in each of the contention based user group by a dedicated radio resource control signaling.
24. The base station of claim 23, wherein
each of the multiple schedule domains of the CB Grant further comprises a user indication domain, and the user indication domain is used for indicating the contention based user number in the contention based user group.
25. A user equipment, comprising:
an processor configured to acquire contention based user group numbers and a same contention based radio network temporary identifier CB-RNTI configured for multiple contention based user groups;
the processor configured to monitor a contention based uplink grant CB Grant according to the CB-RNTI acquired by the processor to determine schedule information required by the contention based uplink transmission, the schedule information comprises contention based uplink transmission resource, the monitored CB Grant comprises several schedule domains, the contention based user group numbers acquired by the processor respectively correspond to schedule domain numbers for identifying the schedule domains of the CB Grant monitored by the processor;
a transmitter configured to transmit uplink data or report buffer status report by using the contention based uplink transmission resource granted by the CB Grant, the contention based uplink transmission resource is in the schedule information determined;
wherein the CB Grant is carried on a common search space, and the number of information bits of the CB Grant is the same as the number of information bits of downlink control information of one of format 3/3 A or format 1C.
26. The user equipment of claim 25, wherein the processor is further configured to:
monitor the CB Grant matched with the CB-RNTI according to the CB-RNTI acquired by the acquiring module;
read schedule information indicated by the schedule domain of the CB Grant monitored according to the contention based user group number acquired by the acquiring module, wherein the schedule domain corresponds to the contention based user group number; and
determine available contention based uplink transmission resource according to the schedule information read.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.