CN104955110B - method and apparatus for use in a wireless network supporting dual connectivity - Google Patents
method and apparatus for use in a wireless network supporting dual connectivity Download PDFInfo
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Abstract
Methods and apparatus are provided for use in a wireless network supporting dual connectivity. The method includes transmitting a plurality of uplink transmission configurations to a user equipment for selection from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment. With the methods and apparatus of the present disclosure, higher throughput performance and/or better uplink coverage of dual connectivity may be achieved without introducing any coordination of primary and secondary base stations over non-ideal backhaul links.
Description
Technical Field
Non-limiting and exemplary embodiments of the present disclosure relate to the field of wireless communications. More particularly, embodiments herein relate to methods and apparatus for use in wireless networks that support dual connectivity.
Background
In long term evolution-advanced ("LTE-a") release 12(Rel-12), dual connectivity ("DC") as shown in fig. 1 is an operation in which a given user equipment ("UE") consumes radio resources provided by at least two different network points, e.g., a master evolved node B ("MeNB") and a secondary eNB ("SeNB"), which are CONNECTED via a non-ideal backhaul link in an RRC _ CONNECTED mode. The MeNB may at least terminate S1-a mobility management entity ("MME", not shown) and act as a mobility anchor point for the core network ("CN"). The SeNB provides additional radio resources for the UE. Unlike existing carrier aggregation ("CA") techniques, scheduling for DC at MeNB and SeNB is typically independent and not coordinated due to non-ideal backhaul links. In CA, the total transmit power is dynamically shared by multiple uplink ("UL") component carriers ("CCs") after considering how many UL resources should be allocated to the CCs. However, for DC, MeNB and SeNB cannot do scheduler level coordination, and thus it is not possible to achieve dynamic power sharing between them. Thus, it is highly likely for a UE in DC that the total transmit power of one UL transmission to MeNB and another UL transmission to SeNB within the same subframe exceeds the maximum transmit power of the UE.
To is coming toEnsuring that excessive UE power limitations do not occur due to independent schedulers at MeNB and SeNB, MeNB currently being proposed with a maximum transmit power P for transmissions to MeNBCMAX_MeNBTo configure the UE and, similarly, with a maximum transmit power P of the transmission to the SeNBCMAX_SeNBTo configure the UE, whereinAnd isRepresenting the maximum transmit power that the UE itself can support. It can be seen that the UE maximum transmit power is divided semi-statically between the two connections. Here the semi-static power division between MeNB and SeNB may be simple and easy to implement. However, DC performance may experience degradation in UL coverage and/or UL throughput because the available UE transmit power is not fully and fully used. For example, when the MeNB has no UL transmission in some subframes, the power reserved by the UE for the MeNB cannot be released for use by the SeNB, since the SeNB cannot make dynamic scheduling decisions for the MeNB in subsequent subframes. In addition, the path loss towards the macro cell is typically much larger than towards the small cell. Thus, to achieve similar target signal-to-interference-and-noise ratio ("SINR") levels at both enbs, the UE will allocate higher transmit power to the MeNB than the SeNB if the macro cell is connected as an MeNB and the small cell is connected as an SeNB. In this case, most of the UL transmit power will not be used when there is no UL transmission on the MeNB.
Therefore, there is a need in the art for a solution to fully utilize the available UE transmit power to obtain optimized UL coverage and throughput performance.
Disclosure of Invention
It is an object of the present disclosure to at least solve the above stated problem and to provide a solution that allows full use of the available user equipment transmit power to achieve the best uplink coverage and throughput performance. At least this object is achieved by providing the following method and apparatus.
according to one aspect of the present disclosure, a method for use in a wireless network supporting dual connectivity is provided. The method includes transmitting a plurality of uplink transmission configurations to a user equipment for selection from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment.
In one embodiment, wherein the transmit power adjustment is a transmit power command and the data rate adjustment is a modulation and coding scheme.
In another embodiment, wherein each of the plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master base station or secondary base station.
In an additional embodiment, wherein the plurality of uplink transmission configurations comprises two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmissions to the primary base station and the secondary base station exist, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the primary base station and the secondary base station does not exist.
in a further embodiment, the method further comprises receiving an uplink control message from the user equipment indicating which of a plurality of uplink transmission configurations is selected.
In one embodiment, the method further comprises blindly detecting data transmissions from the user equipment in the plurality of uplink transmission configurations.
according to one aspect of the present disclosure, a method for use in a wireless network supporting dual connectivity is provided. The method includes receiving, at a user equipment, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment. The method also includes selecting one of the plurality of uplink transmission configurations for the primary base station or the secondary base station.
In one embodiment, wherein the transmit power adjustment is a transmit power command and the data rate adjustment is a modulation and coding scheme.
In yet another embodiment, wherein each of the plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master base station or secondary base station.
in an additional embodiment, wherein the plurality of uplink transmission configurations comprises two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmissions to the primary base station and the secondary base station exist, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the primary base station and the secondary base station does not exist.
In another embodiment, the method further comprises sending an uplink control message to at least one of the master base station and the secondary base station indicating which of a plurality of uplink transmission configurations is selected.
according to another aspect of the present disclosure, there is provided an apparatus for use in a wireless network supporting dual connectivity. The apparatus includes a transmitting unit configured to transmit a plurality of uplink transmission configurations to a user equipment for selection from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment.
According to an aspect of the present disclosure, there is provided an apparatus for use in a wireless network supporting dual connectivity. The apparatus includes a receiving unit configured to receive, at a user equipment, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment. The apparatus also includes a selection unit configured to select one of the plurality of uplink transmission configurations for the primary base station or the secondary base station.
According to an aspect of the present disclosure, there is provided an apparatus for use in a wireless network supporting dual connectivity. The apparatus comprises at least one processor; at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to transmit a plurality of uplink transmission configurations to a user equipment for selection from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment.
According to an aspect of the present disclosure, there is provided an apparatus for use in a wireless network supporting dual connectivity. The apparatus comprises at least one processor; at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to receive, at a user equipment, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment. The at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to further select at least one of the plurality of uplink transmission configurations for the master base station or the secondary base station.
with the solutions calculated in the various aspects and embodiments described above, the uplink transmission power of both connections towards the primary and secondary base stations can be adjusted in a non-coordinated manner. Thus, higher throughput performance and/or better uplink coverage of dual connectivity may be achieved without introducing any coordination of the primary and secondary base stations over the non-ideal backhaul link.
Drawings
Embodiments will now be described in more detail with reference to the accompanying drawings, in which:
FIG. 1 is an exemplary network architecture in which exemplary embodiments of the present disclosure may be practiced;
Fig. 2 is a schematic flow diagram of a method used in a DC-enabled wireless network as shown in fig. 1 from the perspective of an MeNB or SeNB according to an example embodiment of the present disclosure;
Fig. 3 is a schematic flow diagram of a method used in a DC-enabled wireless network from the perspective of a UE according to an example embodiment of the present disclosure;
4A-4C are schematic diagrams depicting a scenario occurrence in which concurrent UL transmissions on a MeNB and a SeNB are in accordance with an exemplary embodiment of the present disclosure;
Fig. 5A-5C are schematic diagrams depicting the occurrence of a scenario in which only UL transmissions on the SeNB occur, according to an exemplary embodiment of the present disclosure;
Fig. 6 is a schematic block diagram of a device for use in a DC-enabled wireless network in accordance with some example embodiments of the present disclosure;
Fig. 7 is a schematic block diagram of a device for use in a DC-enabled wireless network in accordance with some example embodiments of the present disclosure; and
Fig. 8 is a schematic block diagram of a device for use in a DC-enabled wireless network, in accordance with some example embodiments of the present disclosure.
Detailed Description
The present disclosure now will be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments of the disclosure are shown. This disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Like numbers refer to like elements throughout.
Generally, the terms used in the claims are to be interpreted according to their ordinary meaning unless explicitly defined otherwise herein. References to "a/an/the element, device, component, means, etc" are to be interpreted openly as referring to at least one instance of the element, device, component, means, step, etc., unless explicitly stated to the contrary herein. The steps of a method disclosed herein do not have to be performed in the exact order disclosed herein, unless explicitly stated. The discussion above and below regarding any aspect of the present disclosure is also in applicable parts related to any other aspect of the present disclosure.
Due to the distributed scheduling with non-ideal backhaul links at MeNB and SeNB, exemplary embodiments of the present disclosure propose a solution to efficiently use DC for available UE transmissions, such that uplink power control and link adaptation for different enbs may be performed in a non-coordinated manner.
fig. 2 is a schematic flow diagram of a method 200 for use in a DC-enabled wireless network as shown in fig. 1 from a primary base station (or "MeNB") or secondary base station (or "SeNB") perspective in accordance with an exemplary embodiment of the present disclosure. As shown in fig. 2, at S201, the method 200 transmits a plurality of uplink transmission configurations to the UE from at least one of the master base station and the secondary base station for selection, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment.
in one embodiment, the transmit power adjustment is a transmit power command ("TPC") and the data rate adjustment is a modulation and coding scheme ("MCS").
in another embodiment, each of the plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master base station or secondary base station.
In an additional embodiment, the plurality of uplink transmission configurations includes two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmission to the primary base station and the secondary base station exists, which will be described in detail with reference to fig. 4A-4C, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the primary base station and the secondary base station does not exist, which will be described in detail with reference to fig. 5A-5C.
In further embodiments, the method 200 receives an uplink control message from the UE indicating which of a plurality of uplink transmission configurations is selected, as shown at S202. Alternatively, the method 200 further blindly detects data transmissions from the UE with the plurality of uplink transmission configurations at S203.
fig. 3 is a schematic flow chart diagram of a method 300 for use in a DC-enabled wireless network from a UE perspective in accordance with an exemplary embodiment of the present disclosure. As shown in fig. 3, at S301, the method 300 includes receiving, at a UE, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment. Next, at S302, the method 300 further includes selecting one of the plurality of uplink transmission configurations for the primary base station or the secondary base station.
In one embodiment, the transmit power adjustment is a TPC and the data rate adjustment is an MCS.
In another embodiment, wherein each of the plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master base station or secondary base station.
In an additional embodiment, wherein the plurality of uplink transmission configurations comprises two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmissions to the primary base station and the secondary base station exist, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the primary base station and the secondary base station does not exist.
in another embodiment, the method 300 further comprises sending an uplink control message to at least one of the master base station and the secondary base station indicating which of a plurality of uplink transmission configurations is selected.
With the methods 200 and 300 and their several variations or improvements as set forth in the above embodiments, the present disclosure may efficiently use the available UE transmit power to increase uplink throughput performance and uplink coverage for dual connectivity and also avoid any coordination of the primary and secondary base stations over non-ideal backhaul links.
Fig. 4A-4C are schematic diagrams depicting a scenario occurrence in which concurrent UL transmissions on MeNB and SeNB occur, according to an example embodiment of the present disclosure. It can be seen that this scenario corresponds to the case when the number of uplink transmission configurations is 2.
As shown in FIG. 4A, the MeNB transmits to the UE in subframe "n" including TPC0+MCS0Conventional downlink control indicator ("DCI") format. Similarly, the SeNB sends a new DCI format to the UE in subframe "n" to configure including TPC1+MCS1And TPC2+MCS2E.g., via dynamic control signaling messages, and MCS levels. Suppose TPC1+MCS1Corresponding to a conservative configuration and calculated based on a semi-statically partitioned maximum power associated with the MeNB or the SeNB, and TPC2+MCS2Corresponding to an aggressive configuration and calculated based on the total transmit power, it is assumed here that there is no uplink transmission on one of the two connections at DC and the total UE transmit power can be used for the other of the two connections in the target subframe.
next, as shown in FIG. 4B, upon receiving the TPC0+MCS0、TPC1+MCS1And TPC2+MCS2Due to the parallel uplink transmission on the MeNB, the UE selects a conservative configuration for transmission to the SeNB, i.e. the TPC shown1+MCS1And its selection is fed back to the SeNB in subframe n +2, as illustrated by the arrow.
next, as shown in fig. 4C, the UE performs parallel uplink transmission in subframe n +4 according to the selected configuration. In particular, for SeNB, the UE may utilize TPC1+MCS1To execute uplinkLink transmission, and for the UE can utilize TPC0+MCS0To perform uplink transmission.
As can be seen from the above description, when the UE receives scheduling information from both the MeNB and the SeNB in subframe n, it may select a conservative configuration or an aggressive configuration for target subframe n +4 according to the scheduling status. The UE may select a conservative configuration if the scheduling status is that both MeNB and SeNB have uplink transmissions in the same subframe. In contrast, if the scheduling status is that one of the MeNB and SeNB has no uplink transmission, the UE may select an aggressive configuration in which the UE may use any available transmit power, even including the maximum transmit power that the UE itself may support, i.e., as discussed previouslyThereby, the UE may achieve higher throughput performance and better uplink coverage.
Fig. 5A-5C are schematic diagrams depicting the occurrence of a scenario in which only UL transmissions on the SeNB occur, according to an exemplary embodiment of the present disclosure. As shown in fig. 5A, the SeNB sends a new DCI format to the desired UE in subframe n to configure two sets of TPC commands and MCS levels, i.e., TPC1+MCS1And TPC2+MCS2. Since there is no uplink scheduling from the MeNB, the UE selects aggressive configuration for uplink transmission to the SeNB, since there is no uplink transmission on the MeNB, and feeds back its selection TPC to the SeNB in subframe n +2, as shown in fig. 5B2+MCS2. Then, as shown in fig. 5C, in subframe n +4, the UE only configures TPC according to the selection2+MCS2to perform uplink transmissions to the SeNB, which will fully use the available UE transmit power to achieve optimal uplink coverage and throughput performance.
although not further shown in fig. 4A-4C and 5A-5C, for uplink data transmitted in a target subframe, e.g., "n + 4", there are two reception methods at the respective enbs, one of which is implicit reception and the other is explicit reception. In implicit reception, the MeNB or SeNB may detect physical uplink shared channel ("PUSCH") data with two configurations, respectively. That is, the MeNB or SeNB may perform blind detection on the uplink data, which would result in skipping the steps as shown in fig. 5B, since reporting is unnecessary. In explicit reception, the UE may send an uplink control signaling message, e.g., in the form of a scheduling request ("SR") or a hybrid automatic repeat request acknowledgement ("HARQ-ACK"), to inform the eNB of the selected configuration in subframe "n + 1", "n + 2", or "n + 3", before data reception in subframe "n + 4".
It should be noted that the two sets of TPC and MCS described above are merely exemplary embodiments of the present disclosure, and the scope of the present disclosure should not be limited thereto. As previously discussed, more than two sets of TPCs and MCSs may be advantageously used in accordance with the present disclosure. Further, based on the teachings of the present disclosure, one skilled in the art will appreciate that instead of using a combination thereof, multiple TPCs or multiple MCSs may be used, respectively. Since those skilled in the art will understand how to adjust the transmit power based on TPC (e.g., in an absolute or a step-wise manner), details regarding this aspect are omitted so as to unnecessarily obscure the scope of the present disclosure.
Fig. 6 is a schematic block diagram of a device 600 for use in a DC-enabled wireless network, according to some example embodiments of the present disclosure. As shown in fig. 6, the apparatus 600 includes a transmitting unit 601 configured to transmit a plurality of uplink transmission configurations to the UE for selection from at least one of the master base station and the secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment.
In an example embodiment, the apparatus 600 further comprises a receiving unit 602 configured to receive an uplink control message from the UE indicating which of a plurality of uplink transmission configurations is selected. In a further exemplary embodiment, the apparatus 600 comprises a detecting unit 603 configured to blindly detect data transmissions from the UE in the plurality of uplink transmission configurations.
From the above description, it will be appreciated that the device 600 is capable of performing the method 200 and its variations and extensions discussed above in relation to the exemplary embodiments discussed above. Further, the apparatus 600 may be embodied as one of the primary base station or the secondary base station, or a portion thereof.
fig. 7 is a schematic block diagram of a device 700 for use in a DC-enabled wireless network, in accordance with some example embodiments of the present disclosure. As shown in fig. 7, the apparatus 700 includes a receiving unit 701 configured to receive, at a UE, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment. The apparatus 700 further comprises a selection unit 702 configured to select one of the plurality of uplink transmission configurations for the primary base station or the secondary base station.
In one exemplary embodiment, the apparatus 700 further includes a transmitting unit configured to transmit an uplink control message indicating which of a plurality of uplink transmission configurations is selected to at least one of the primary base station and the secondary base station.
From the above description, it will be appreciated that the device 700 is capable of performing the method 300 and its variations and extensions discussed above in relation to the exemplary embodiments discussed above. Further, device 700 may be embodied as, or a part of, a UE
Fig. 8 is a schematic block diagram of a device 800 for use in a DC-enabled wireless network, in accordance with some example embodiments of the present disclosure. As shown in fig. 8, the apparatus 800 comprises at least one processor 801, such as a data processor, at least one memory (MEM)802 coupled to the processor 801. Depending on the different implementation, although not shown, the device 800 may further comprise a suitable RF transmitter TX and receiver RX coupled to the processor 801 for establishing wireless connections with other nodes in the wireless network. The memory 802 stores a Program (PROG) 803. The combination of the processor 801 and the memory 802 form a processing device suitable for performing embodiments of the present disclosure. Device 800 may be coupled to one or more external networks or systems, such as the internet, via a data path.
the PROG803 is assumed to include program instructions that, when executed by the processor 801, cause the device 800 to operate in accordance with the exemplary embodiments of this invention, as discussed herein in connection with the methods 200, 300 and their respective variations and extensions discussed in the exemplary embodiments of this disclosure. Thus, the apparatus 800 may be embodied as one of, or a part of, a primary base station, a secondary base station, and a UE.
in general, embodiments of the disclosure may be implemented by computer software executable by at least one processor 801 of the device 800, or by hardware, or by a combination of software and hardware.
The MEMs 802 may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. Although only one MEM is shown in the device 800, there may be several physically distinct memory locations in the device 800. The processor 801 may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, DSPs, and processors based on a multi-core processor architecture, as non-limiting examples. The device 800 may have multiple processors, such as application specific integrated circuit chips, duly slaved to a clock that synchronizes the main processor.
Further, according to various implementations, the invention may also provide a computer program comprising instructions which, when executed on at least one processor (e.g., the processor 801), cause the at least one processor to perform a method according to exemplary embodiments of the present disclosure.
In addition, the present disclosure also provides a carrier wave including the above-mentioned computer program, wherein the carrier wave is one of an electrical signal, an optical signal, a radio signal, or a computer-readable storage medium.
The techniques described above may be implemented by various means, so that a means for performing one or more functions of a respective mobile entity as described in the embodiments includes not only prior art means, but also means for performing one or more functions of a respective apparatus as described in connection with the embodiments, and which may include separate means for each separate function, or the means may be configured to perform two or more functions. For example, the techniques may be implemented in hardware (one or more devices), firmware (one or more devices), software (one or more modules), or a combination thereof. For firmware or software, implementation can be through modules (e.g., procedures, functions, and so on) that perform the functions described herein.
Many modifications and other embodiments of the inventions set forth herein will come to mind to one skilled in the art to which these embodiments of the disclosure pertain having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the embodiments of the disclosure are not to be limited to the specific embodiments disclosed herein and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (20)
1. a method for use in a wireless network supporting dual connectivity, the method comprising:
Transmitting, from at least one of a master base station and a secondary base station, a plurality of uplink transmission configurations to a user equipment for selection, wherein each uplink transmission configuration of the plurality of uplink transmission configurations comprises at least one of a transmit power adjustment and a data rate adjustment; wherein the plurality of uplink transmission configurations includes two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmission to the master base station and the secondary base station exists, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the master base station and the secondary base station does not exist.
2. The method of claim 1, wherein the transmit power adjustment is a transmit power command and the data rate adjustment is a modulation and coding scheme.
3. The method of claim 1, wherein each of a plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master or secondary base station.
4. The method of claim 1, further comprising:
Receiving an uplink control message from the user equipment indicating which of a plurality of uplink transmission configurations is selected.
5. The method of claim 1, further comprising:
Blindly detecting data transmissions from the user equipment in the plurality of uplink transmission configurations.
6. A method for use in a wireless network supporting dual connectivity, the method comprising:
Receiving, at a user equipment, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations comprises at least one of a transmit power adjustment and a data rate adjustment, wherein the plurality of uplink transmission configurations comprises two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmissions to the master base station and the secondary base station exist, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the master base station and the secondary base station does not exist; and
Selecting one of the plurality of uplink transmission configurations for the master base station or the secondary base station.
7. the method of claim 6, wherein the transmit power adjustment is a transmit power command and the data rate adjustment is a modulation and coding scheme.
8. The method of claim 6, wherein each of a plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master or secondary base station.
9. The method of claim 6, further comprising:
Transmitting an uplink control message to at least one of the primary base station and the secondary base station indicating which of a plurality of uplink transmission configurations is selected.
10. An apparatus for use in a wireless network supporting dual connectivity, the apparatus comprising:
A transmitting unit configured to transmit a plurality of uplink transmission configurations to a user equipment for selection from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations includes at least one of a transmit power adjustment and a data rate adjustment; wherein the plurality of uplink transmission configurations includes two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmission to the master base station and the secondary base station exists, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the master base station and the secondary base station does not exist.
11. the apparatus of claim 10, wherein the transmit power adjustment is a transmit power command and the data rate adjustment is a modulation and coding scheme.
12. the apparatus of claim 10, wherein each of a plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master base station or secondary base station.
13. The apparatus of claim 10, further comprising:
a receiving unit configured to receive an uplink control message from the user equipment indicating which of a plurality of uplink transmission configurations is selected.
14. The apparatus of claim 10, further comprising:
A detection unit configured to blindly detect data transmissions from the user equipment in the plurality of uplink transmission configurations.
15. An apparatus for use in a wireless network supporting dual connectivity, the apparatus comprising:
A receiving unit configured to receive, at a user equipment, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations comprises at least one of a transmit power adjustment and a data rate adjustment, wherein the plurality of uplink transmission configurations comprises two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmissions to the master base station and the secondary base station exist, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the master base station and the secondary base station does not exist; and
A selection unit configured to select one of the plurality of uplink transmission configurations for the primary base station or the secondary base station.
16. The apparatus of claim 15, wherein the transmit power adjustment is a transmit power command and the data rate adjustment is a modulation and coding scheme.
17. The apparatus of claim 15, wherein each of a plurality of uplink transmission configurations corresponds to one of a plurality of uplink scheduling states associated with a respective uplink performance requirement of the master base station or secondary base station.
18. The apparatus of claim 15, further comprising:
a transmitting unit configured to transmit an uplink control message indicating which of a plurality of uplink transmission configurations is selected to at least one of the primary base station and the secondary base station.
19. An apparatus for use in a wireless network supporting dual connectivity, the apparatus comprising:
At least one processor;
At least one memory including computer program code,
Wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to:
Transmitting, from at least one of a master base station and a secondary base station, a plurality of uplink transmission configurations to a user equipment for selection, wherein each uplink transmission configuration of the plurality of uplink transmission configurations comprises at least one of a transmit power adjustment and a data rate adjustment; wherein the plurality of uplink transmission configurations includes two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmission to the master base station and the secondary base station exists, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the master base station and the secondary base station does not exist.
20. An apparatus for use in a wireless network supporting dual connectivity, the apparatus comprising:
At least one processor;
At least one memory including computer program code,
Wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to:
Receiving, at a user equipment, a plurality of uplink transmission configurations from at least one of a master base station and a secondary base station, wherein each uplink transmission configuration of the plurality of uplink transmission configurations comprises at least one of a transmit power adjustment and a data rate adjustment, wherein the plurality of uplink transmission configurations comprises two uplink transmission configurations, wherein one of the two uplink transmission configurations corresponds to an uplink scheduling state in which concurrent uplink transmissions to the master base station and the secondary base station exist, and wherein the other of the two uplink transmission configurations corresponds to an uplink scheduling state in which one uplink transmission to one of the master base station and the secondary base station does not exist; and
selecting one of the plurality of uplink transmission configurations for the master base station or the secondary base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN109787711B (en) * | 2017-11-15 | 2021-08-17 | 大唐移动通信设备有限公司 | MCS index table configuration method, user terminal and network side equipment |
| CN111465061B (en) * | 2019-01-22 | 2022-04-15 | 中国移动通信有限公司研究院 | Processing method and device for uplink transmission, related equipment and storage medium |
| CN111787628B (en) * | 2019-04-03 | 2023-05-09 | 中国移动通信有限公司研究院 | Transmission method, terminal and network equipment |
| CN110691372B (en) * | 2019-09-16 | 2021-10-08 | Oppo广东移动通信有限公司 | Transmission rate control method, terminal and storage medium |
| CN111866933B (en) * | 2020-09-02 | 2022-04-05 | 珠海格力电器股份有限公司 | Method and device for determining data transmission mode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748373A (en) * | 2003-10-15 | 2006-03-15 | 三星电子株式会社 | Be used for method in mobile communication system control packet rates |
| CN103327595A (en) * | 2012-03-23 | 2013-09-25 | 华为技术有限公司 | Uplink power control method, network nodes and system |
| WO2014021984A1 (en) * | 2012-08-03 | 2014-02-06 | Intel Corporation | Enhanced node b, user equipment and methods for discontinuous reception in inter-enb carrier aggregation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748373A (en) * | 2003-10-15 | 2006-03-15 | 三星电子株式会社 | Be used for method in mobile communication system control packet rates |
| CN103327595A (en) * | 2012-03-23 | 2013-09-25 | 华为技术有限公司 | Uplink power control method, network nodes and system |
| WO2014021984A1 (en) * | 2012-08-03 | 2014-02-06 | Intel Corporation | Enhanced node b, user equipment and methods for discontinuous reception in inter-enb carrier aggregation |
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