WO2020026168A1 - Surcharge de ressources radio de faible complexité - Google Patents

Surcharge de ressources radio de faible complexité Download PDF

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Publication number
WO2020026168A1
WO2020026168A1 PCT/IB2019/056539 IB2019056539W WO2020026168A1 WO 2020026168 A1 WO2020026168 A1 WO 2020026168A1 IB 2019056539 W IB2019056539 W IB 2019056539W WO 2020026168 A1 WO2020026168 A1 WO 2020026168A1
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WIPO (PCT)
Prior art keywords
frequency resources
physical channel
wireless device
transmission
time
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PCT/IB2019/056539
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English (en)
Inventor
Olof Liberg
Andreas HÖGLUND
Yutao Sui
Johan Bergman
Original Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
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Application filed by Telefonaktiebolaget Lm Ericsson (Publ) filed Critical Telefonaktiebolaget Lm Ericsson (Publ)
Priority to EP19773906.3A priority Critical patent/EP3830991A1/fr
Priority to CN201980064643.3A priority patent/CN112753182A/zh
Publication of WO2020026168A1 publication Critical patent/WO2020026168A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system

Definitions

  • the present disclosure relates to a cellular communications system and, in particular, resource overloading in a cellular communications system that utilizes repetitions.
  • Narrowband Internet of Things and Long Term Evolution (LTE) Machine (LTE-M)
  • LTE-M Long Term Evolution Machine
  • MTC Long Term Evolution Machine Type Communication
  • eMTC enhanced MTC
  • CE Bandwidth Limited
  • UEs User Equipment devices
  • both NB-IoT and LTE-M have the ability to perform link adaptation on all physical channels by means of subframe bundling and repetitions.
  • Figure 1 illustrates the relationship between Signal to Noise Ratio (SNR) and NPDCCFI Block Error Rate (BLER) for 1, 4, and 16 NPDCCFI repetitions simulated for a Typical Urban (TU) 1 hertz (FHz) channel.
  • SNR Signal to Noise Ratio
  • BLER Block Error Rate
  • Another problem is that the number of repetitions that can be chosen from are defined by fixed limited sets, often defined by 2 n with n e ⁇ 1,2,3,... ⁇ . As an example, if a transmission requires more than 64 repetitions but less than 128 repetitions to reach a given BLER target, there is no way to choose a number in between 64 and 128 in the current design. Therefore, 128 repetitions will be used, and part of the resource (the resource used for the transmission beyond the requirement of reaching the given BLER target) will be wasted.
  • a method performed by a wireless device comprises transmitting or receiving one or more repetitions of a physical channel transmission to or from the wireless device on a set of time and frequency resources that punctures a larger set of time and frequency resources allocated for repetitions of one or more physical channel transmissions to or from one or more other wireless devices. In this manner, high spectrum efficiency is provided while also supporting good coverage through repetitions.
  • the wireless device and the one or more other wireless devices use the same Radio Access Technology (RAT).
  • RAT Radio Access Technology
  • both the wireless device and the one or more other wireless devices are Long Term Evolution (LTE) Machine (LTE-M) User Equipments (UEs). In some other embodiments, both the wireless device and the one or more other wireless devices are Narrowband Internet of Things (NB- IoT) UEs.
  • LTE Long Term Evolution
  • LTE-M Long Term Evolution
  • UEs User Equipments
  • NB- IoT Narrowband Internet of Things
  • the wireless device and the one or more other wireless devices use different radio access technologies.
  • the one or more other wireless devices are either LTE-M UEs or NB-IoT UEs, and the wireless device is a LTE UE.
  • the one or more other wireless devices are either LTE-M UEs or NB-IoT UEs, and the wireless device is a NR UE.
  • the larger set of time and frequency resources is a set of frequency resources in X transmission time periods
  • the set of time and frequency resources punctured from the larger set of time and frequency resources is some or all of the set of frequency resources in Y transmission time periods from among the X
  • the Y transmission time periods are the first Y transmission time periods of the X transmission time periods. In some other embodiments, the Y transmission time periods are the last Y transmission time periods of the X transmission time periods. In some embodiments, a maximum size of Y is
  • a size of Y is a function of a number of repetitions of the first physical channel transmission needed for successful decoding of the first physical channel transmission.
  • the transmission time periods are subframes or a resource unit comprising two or more subframes.
  • both the physical channel transmission to or from the wireless device and the one or more physical channel transmissions to or from the one or more other wireless devices are Physical Downlink Control Channel (PDCCH) transmissions.
  • both the physical channel transmission to or from the wireless device and the one or more physical channel transmissions to or from the one or more other wireless devices are Physical Downlink Shared Channel (PDSCH) transmissions.
  • PDSCH Physical Downlink Shared Channel
  • both the physical channel transmission to or from the wireless device and the one or more physical channel transmissions to or from the one or more other wireless devices are Physical Uplink Shared Channel (PUSCH) transmissions.
  • PUSCH Physical Uplink Shared Channel
  • both the physical channel transmission to or from the wireless device and the one or more physical channel transmissions to or from the one or more other wireless devices are Physical Random Access Channel (PRACH) transmissions.
  • PRACH Physical Random Access Channel
  • a wireless device is adapted to transmit or receive one or more repetitions of a physical channel transmission to or from the wireless device on a set of time and frequency resources that punctures a larger set of time and frequency resources allocated for repetitions of one or more physical channel transmissions to or from one or more other wireless devices.
  • the wireless device comprises one or more transmitters or one or more receivers, and processing circuitry associated with the one or more transmitters or the one or more receivers.
  • the processing circuitry is configured to cause the wireless device to transmit or receive one or more repetitions of a physical channel transmission to or from the wireless device on a set of time and frequency resources that punctures a larger set of time and frequency resources allocated for repetitions of one or more physical channel transmissions to or from one or more other wireless devices.
  • a method performed by a base station for communicating with one or more wireless devices comprises allocating a first set of time and frequency resources for repetitions of one or more first physical channel transmissions for one or more first wireless devices, and allocating a second set of time and frequency resources for one or more repetitions of a second physical channel transmission for a second wireless device.
  • the second set of time and frequency resources partly overlaps with the first set of time and frequency resources such that the second set of time and frequency resources punctures the first set of time and frequency resources.
  • the method further comprises transmitting or receiving some of the repetitions of the one or more first physical channel transmissions to or from the one or more first wireless devices on some of the first set of time and frequency resources other than those punctured by the second set of time and frequency resources allocated for the one or more repetitions of the second physical channel transmission to the second wireless device.
  • the method further comprises transmitting or receiving the one or more
  • the one or more first wireless devices and the second wireless device use the same RAT. In some embodiments, both the one or more first wireless devices and the second wireless device are LTE-M UEs. In some other
  • both the one or more first wireless devices and the second wireless device are Narrowband Internet of Things (NB-IoT) UEs.
  • NB-IoT Narrowband Internet of Things
  • the one or more first wireless devices and the second wireless device use different RATs.
  • the one or more first wireless devices are either LTE-M UEs or NB-IoT UEs, and the second wireless device is a LTE UE.
  • the one or more first wireless devices are either LTE-M UEs or NB-IoT UEs, and the second wireless device is a New Radio (NR) UE.
  • NR New Radio
  • the first set of time and frequency resources is a set of frequency resources in X transmission time periods
  • the second set of time and frequency resources is some or all of the set of frequency resources in Y transmission time periods from among the X transmission time periods, wherein X and Y are both positive integers and X > Y.
  • X >> Y.
  • the Y transmission time periods are the first Y transmission time periods of the X transmission time periods.
  • the Y transmission time periods are the last Y transmission time periods of the X transmission time periods.
  • the transmission time periods are subframes or a resource unit comprising two or more subframes. In some embodiments, both the one or more first physical channel
  • both the transmissions and the second physical channel transmission are PDCCH transmissions. In some other embodiments, both the one or more first physical channel transmissions and the second physical channel transmission are PDSCH transmissions. In some other embodiments, both the one or more first physical channel transmissions and the second physical channel transmission are PUSCH transmissions. In some other embodiments, both the one or more first physical channel transmissions and the second physical channel transmission are PRACH transmissions.
  • a base station for communicating with one or more wireless devices is adapted to allocate a first set of time and frequency resources for repetitions of one or more first physical channel transmissions for one or more first wireless devices and allocate a second set of time and frequency resources for one or more repetitions of a second physical channel transmission for a second wireless device.
  • the second set of time and frequency resources partly overlaps the first set of time and frequency resources such that the second set of time and frequency resources punctures the first set of time and frequency resources.
  • the base station is further adapted to transmit or receive some of the repetitions of the one or more first physical channel transmissions to or from the one or more first wireless devices on some of the first set of time and frequency resources other than those punctured by the second set of time and frequency resources allocated for the one or more repetitions of the second physical channel transmission to the second wireless device.
  • the base station is further adapted to transmit or receive the one or more repetitions of the second physical channel transmission to or from the second wireless device on the second set of time and frequency resources.
  • the base station comprises processing circuitry
  • the base station configured to cause the base station to allocate the first set of time and frequency resources for repetitions of the one or more first physical channel transmissions for the one or more first wireless devices, allocate the second set of time and frequency resources for the one or more repetitions of the second physical channel transmission for the second wireless device, transmit or receive some of the repetitions of the one or more first physical channel transmissions to or from the one or more first wireless devices on some of the first set of time and frequency resources other than those punctured by the second set of time and frequency resources allocated for the one or more repetitions of the second physical channel transmission to the second wireless device, and transmit or receive the one or more repetitions of the second physical channel transmission to or from the second wireless device on the second set of time and frequency resources.
  • Figure 1 illustrates the relationship between Signal to Noise Ratio (SNR) and Narrowband Physical Downlink Control Channel (NPDCCH) Block Error Rate (BLER) for 1, 4, and 16 NPDCCH repetitions simulated for a Typical Urban (TU) 1 hertz (Hz) channel;
  • SNR Signal to Noise Ratio
  • NPDCCH Narrowband Physical Downlink Control Channel
  • BLER Block Error Rate
  • Figure 2 illustrates NPDCCH Cl scheduling Narrowband Physical Downlink Shared Channel (NPDSCH) PI to UE1, which punctures the first of 16 NPDSCH P2 subframes scheduled for UE2 by NPDCCH C2;
  • NPDSCH Narrowband Physical Downlink Shared Channel
  • Figure 3 illustrates one example of a cellular communications network in which the embodiments described herein may be implemented
  • Figure 4 illustrates an example of overloading of the (N/M)PDCCH is achieved by an enhanced or evolved Node B (eNB) transmitter puncturing resources assigned to a first User Equipment device (UE) in time and/or frequency and use the punctured resource to serve a second UE;
  • eNB enhanced or evolved Node B
  • Figure 5 illustrates an example of overloading of the (N/M)PDCCH is achieved by an enhanced or eNB transmitter puncturing resources assigned to a first UE in the time domain and using the punctured resource to serve a second UE;
  • Figure 6 illustrates an example of overload of the (Narrowband) Physical Uplink Shared Channel ((N)PUSCH) which is achieved by an eNB scheduler assigning (partially) overlapped uplink link resources in time and/or frequency for a first UE and a second UE;
  • (N)PUSCH) Physical Uplink Shared Channel
  • Figure 7 is a flow chart that illustrates the operation of a base station according to at least some of the embodiments of the present disclosure
  • Figure 8 is a flow chart that illustrates the operation of a wireless device according to at least some of the embodiments of the present disclosure
  • Figure 9 through 11 illustrate example embodiments of a radio access node (e.g., a base station);
  • Figure 12 and 13 illustrate example embodiments of a UE
  • Figure 14 illustrates a communication system in accordance with some embodiments of the present disclosure
  • Figure 15 illustrates example implementations in accordance with an
  • Figure 16 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment
  • Figure 17 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment
  • Figure 18 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • Figure 19 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • Radio Node As used herein, a "radio node” is either a radio access node or a wireless device.
  • Radio Access Node As used herein, a "radio access node” or “radio network node” is any node in a radio access network of a cellular communications network that operates to wirelessly transmit and/or receive signals.
  • a radio access node include, but are not limited to, a base station (e.g., a New Radio (NR) base station (gNB) in a Third Generation Partnership Project (3GPP) Fifth Generation (5G) NR network or an enhanced or evolved Node B (eNB) in a 3GPP Long Term Evolution (LTE) network), a high-power or macro base station, a low-power base station (e.g., a micro base station, a pico base station, a home eNB, or the like), and a relay node.
  • a base station e.g., a New Radio (NR) base station (gNB) in a Third Generation Partnership Project (3GPP) Fifth Generation (5G) NR network or an enhanced or evolved Node B (eNB) in a
  • Core Network Node is any type of node in a core network.
  • Some examples of a core network node include, e.g., a Mobility Management Entity (MME), a Packet Data Network Gateway (P-GW), a Service Capability Exposure Function (SCEF), or the like.
  • MME Mobility Management Entity
  • P-GW Packet Data Network Gateway
  • SCEF Service Capability Exposure Function
  • a “wireless device” is any type of device that has access to (i.e., is served by) a cellular communications network by wirelessly transmitting and/or receiving signals to a radio access node(s).
  • Some examples of a wireless device include, but are not limited to, a User Equipment device (UE) in a 3GPP network such as a LTE UE, a NR UE, a LTE Machine (LTE-M) UE (i.e., a MTC UE), and a Narrowband Internet of Things (NB-IoT) UE.
  • UE User Equipment device
  • LTE-M LTE Machine
  • MTC UE MTC UE
  • NB-IoT Narrowband Internet of Things
  • Network Node As used herein, a "network node” is any node that is either part of the Radio Access Network (RAN) or the core network of a cellular communications network/system.
  • RAN Radio Access Network
  • 3GPP terminology or terminology similar to 3GPP terminology is oftentimes used.
  • the concepts disclosed herein are not limited to a 3GPP system.
  • Certain aspects of the present disclosure and their embodiments may provide solutions to the aforementioned or other challenges.
  • certain aspects of the present disclosure and their embodiments may provide solutions to the problems described above that relate to the contradiction between supporting good coverage and operating with high spectrum efficiency when using repetitions.
  • it is proposed to increase the uplink and downlink resource utilization by means of a method that allows for resource overloading by means of multiplexing different UEs on shared radio resources.
  • this method is referred to as subframe puncturing. The method is described by the following non-limiting example.
  • UE1 Assume a system that needs to provide service to two UEs, UE1 and UE2, at the same time.
  • UE2 is in poor coverage and requires a large number of repetitions on all physical channels, while UE1 is in good coverage and can be served by transmissions spanning a single subframe.
  • Y out of these X repeated subframes can be punctured for the transmission to UE1.
  • puncturing means that transmission or reception of at least one repetition of one physical channel (e.g., a physical channel to UE1) occurs on a set of time and frequency resources (e.g., Y subframes), where this set of time and frequency resources includes a subset of time and frequency resources (e.g., X subframes) that are allocated for repetitions of one or more other physical channels (e.g., a physical channel to one or more other UEs such as, e.g., UE2).
  • a set of time and frequency resources e.g., Y subframes
  • this set of time and frequency resources includes a subset of time and frequency resources (e.g., X subframes) that are allocated for repetitions of one or more other physical channels (e.g., a physical channel to one or more other UEs such as, e.g., UE2).
  • a subset of the time and frequency resources allocated for transmission of the repetitions of one or more physical channels are instead used for transmission of at least one repetition of another physical channel (e.g., to UE1).
  • puncturing is to be distinguished from postponing. For example, one or more repetitions of the physical channel to UE2 that correspond to the punctured resources are not transmitted/received, rather than being merely postponed. The impact on the link level performance of UE2 will be negligible under the condition that Y ⁇ X, or the number of repetitions required by UE2 can be still be provided after the puncturing.
  • UE1 and UE2 may be using the same or different access technologies.
  • both UEs are LTE-M UEs.
  • both UEs are NB-IoT UEs.
  • UE1 is an ordinary LTE UE, and UE2 is either an LTE-M UE or an NB-IoT UE.
  • UE1 is a NR UE and UE2 is either an LTE-M UE or an NB-IoT UE.
  • Figure 2 illustrates this concept for the case of Narrowband Physical Downlink Shared Channel (NPDSCH) in an example where both UEs are NB-IoT UEs.
  • NPDSCH Narrowband Physical Downlink Shared Channel
  • UE1 is addressed as a single subframe NPDSCH transmission PI that punctures the first out of 16 subframes assigned for repetitions of a NPDSCH transmission P2 to UE2.
  • the puncturing operation is entirely transparent to both UEs.
  • the performance of NPDSCH transmission PI will not at all be impacted.
  • the same principle can be applied to (Narrowband) Physical Downlink Shared Channel ((N)PDSCH), (Narrowband/Machine Type
  • MTC Physical Downlink Control Channel
  • N/M Physical Downlink Control Channel
  • N/M Physical Uplink Shared Channel
  • NPUSCH Physical Random Access Channel
  • PUCCH Physical Uplink Control Channel
  • This solution provides a simple method for overloading on radio resources used for addressing devices in poor coverage using time or frequency based repetitions. This method is based on the observation that puncturing a relatively low number of repeated resources has a negligible impact on link performance for a device in extended coverage. The punctured out resources can then be used for addressing of devices in good coverage requiring a low number of radio resources.
  • Certain embodiments may provide one or more of the following technical advantage(s).
  • the general advantage of this method is to increase the support of overall spectrum efficiency leading to a higher system capacity for LTE and/or NB-IoT and/or LTE-M. More specifically, there are gains at hand in terms of solving blocking and providing scheduling improvements.
  • a coverage enhanced transmission with many repetitions can, for example, block the NB-IoT downlink for a long period of time, causing all other transmissions to be delayed.
  • transmission gaps were introduced for this reason but configuring such will have a negative impact on the latency and power consumption for the coverage enhanced UE. Therefore, the present disclosure could provide a more flexible means to resolve the blocking issue.
  • FIG. 3 illustrates one example of a cellular communications network 300 in which the embodiments described herein may be implemented.
  • the cellular communications network 300 is a LTE network, a 5G NR network, or a multi Radio Access Technology (RAT) network having both 5G NR and LTE cells.
  • the LTE cells may support normal LTE RAT, LTE-M RAT, and/or NB-IoT RAT.
  • the cellular communications network 300 includes base stations 302-1 and 302-2, which in LTE are referred to as eNBs and in 5G NR are referred to as gNBs, controlling corresponding macro cells 304-1 and 304-2.
  • the base stations 302-1 and 302-2 are generally referred to herein collectively as base stations 302 and individually as base station 302.
  • the macro cells 304-1 and 304-2 are generally referred to herein collectively as macro cells 304 and individually as macro cell 304.
  • the cellular communications network 300 may also include a number of low power nodes 306-1 through 306-4 controlling corresponding small cells 308-1 through 308-4.
  • the low power nodes 306-1 through 306-4 can be small base stations (such as pico or femto base stations) or Remote Radio Heads (RRHs), or the like.
  • RRHs Remote Radio Heads
  • one or more of the small cells 308-1 through 308-4 may alternatively be provided by the base stations 302.
  • the low power nodes 306-1 through 306-4 are generally referred to herein collectively as low power nodes 306 and individually as low power node 306.
  • the small cells 308-1 through 308-4 are generally referred to herein collectively as small cells 308 and individually as small cell 308.
  • the base stations 302 (and optionally the low power nodes 306) are connected to a core network 310.
  • the base stations 302 and the low power nodes 306 provide service to wireless devices 312-1 through 312-5 in the corresponding cells 304 and 308.
  • the wireless devices 312-1 through 312-5 are generally referred to herein collectively as wireless devices 312 and individually as wireless device 312.
  • the wireless devices 312 are also sometimes referred to herein as UEs.
  • overloading of the (Narrowband/MTC) Physical Downlink Control Channel ((N/M)PDCCH) is achieved by an eNB transmitter (e.g., a transmitter of a base station 302 which in this first embodiment is an eNB) puncturing resources assigned to a first UE (e.g., a first UE 312) in time and/or frequency and use the punctured resource to serve a second UE (e.g., a second UE 312).
  • Figure 4 illustrates this concept by means of an NPDCCH search space with the maximum supported repetition count (Rmax) set to 8.
  • Figure 4 is an illustration of NPDCCH overloading with PDCCH Cl and C2 transmitted over six subcarriers each on subframe 1, which punctures the first out of eight subframes containing NPDCCH C3.
  • a UE3 in extended coverage is addressed using NPDCCH C3 configured for eight repetitions, i.e. spanning the full search space.
  • Two UEs in good coverage are addressed using NPDCCH Cl and C2 transmitted in the first subframe which punctures the NPDCCH C3 transmission intended for UE3. It is also possible to perform only time domain puncturing as illustrated in Figure 5.
  • Figure 5 is an illustration of NPDCCH overloading with NPDCCH Cl and C2 transmitted over one subframe, which punctures the two first subframes out of eight subframes containing NPDCCH C3.
  • overloading of the (N)PDSCH is achieved by an eNB transmitter (e.g., a transmitter of a base station 302 which in this second embodiment is an eNB) puncturing resources assigned to a first UE (e.g., a first UE 312) in time and/or frequency and using the punctured resource to serve a second UE (e.g., a second UE 312).
  • Figure 6 illustrates this concept, where (N)PDSCH PI addressed to UE1 punctures the first out of 16 (N)PDSCH P2 subframes scheduled to UE2 by (N)PDCCH C2.
  • (N)PDSCH transmissions could also be punctured by (N)PDCCH to allow for improved scheduling flexibility and efficiency according to the idea outlined above.
  • overload of the (N)PUSCH is achieved by an eNB scheduler (e.g., a scheduler of a base station 312 which in this third embodiment is an eNB) assigning (partially) overlapped uplink link resources in time and/or frequency for a first UE (e.g., a first UE 312) and a second UE (e.g., a second UE 312).
  • the eNB receiver punctures uplink resources in time and/or frequency of the first UE with the uplink resources of a second UE.
  • An example is illustrated in Figure 6, where in a first step the eNB schedules a UE1 in good coverage and a UE2 in poor coverage for transmission on partly overlapping uplink radio resources.
  • the (N)PUSCH 1 signal received from UE1 will arrive at the eNB with a signal power significantly higher than the (N)PUSCH 2 signal received from UE2.
  • the eNB receiver will equalize the single (N)PUSCH PI subframe while discarding the first (N)PUSCH P2 subframe.
  • the eNB will then equalize (N)PUSCH P2 based on the reception of the remaining 15 subframes.
  • the last repeated subframes are punctured instead of the first to allow for early termination for the UE requiring higher CE. That is, the number of repetitions for the physical channels are limited to the standardized values, e.g.
  • the amount of punctured resources is used as a variable for link adaptation.
  • the amount of puncturing of a coverage enhanced transmission can be a means to better adapt to the granularity given by the specified range for the number of repetitions.
  • the specified repetition range for NPUSCFI is ⁇ 1, 2, 4, 8, 16, 32, 64, 128 ⁇ , and if the eNB would know that 72 repetitions are needed for successful decoding (e.g., by channel estimation, early termination, etc.), it could schedule other UEs and puncture up to 56 subframes out of the scheduled 128 subframes to the first UE.
  • the repetition unit is always 1 subframe. This is not the case for NB-IoT NPUSCFI or Release 15 LTE-M PUSCFI sub- Physical Resource Block (PRB) scheduling, where it is instead a Resource Unit (RU) consisting of multiple subframes that is repeated.
  • PRB Physical Resource Block
  • a NPRACFI from a lower CE level should not be used if overlapping with resources configured for a higher CE level.
  • devices accessing a low CE level configured with a low number of uplink resources and repetitions should be allowed to use those for (N)PRACFI transmissions, even though they are shared with devices accessing the system at a high CE level using a high number of uplink resources and repetitions.
  • Scheduled (N)PUSCH transmissions could likewise be allowed to puncture (N)PRACH transmissions.
  • the punctured transmission consists of multiple subframe repetitions, e.g. from an LTE-M UE or NB-IoT UE, and the puncturing transmission consists of fewer subframes (typically just a single subframe), e.g. from an ordinary LTE UE or NR UE.
  • This may be particularly beneficial in the case when the puncturing transmission is an ordinary LTE PUSCH transmission puncturing an (N)PUSCH transmission.
  • an ordinary LTE PUSCH transmission using Single Carrier Frequency Division Multiple Access (SC-FDMA) modulation needs to be continuous in the frequency domain, it may in some cases be possible to use a much larger channel bandwidth for the ordinary LTE PUSCH transmission if it is allowed to puncture an ongoing (N)PUSCH transmission from an LTE-M UE or NB-IoT UE. This may allow the ordinary LTE UE to achieve substantially higher instantaneous uplink throughput than would otherwise be the case, without necessarily causing any significant uplink throughput loss for the LTE-M or NB-IoT UE.
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • FIG 7 is a flow chart that illustrates the operation of a base station according to at least some of the embodiments described herein.
  • the base station is the base station 302.
  • the base station 302 allocates a first set of time and frequency resources for multiple repetitions of a first physical channel transmission for a first wireless device, referred to here as 312-A (step 700).
  • the base station 302 also allocates a second set of time and frequency resources for one or more repetitions of a second physical channel transmission for a second wireless device, which is referred to here as 312-B (step 702).
  • the second set of time and frequency resources allocated for the repetition(s) of the second physical channel transmission for the second wireless device 312-B punctures the first set of time and frequency resources allocated for the repetitions of the first physical channel transmission for the first wireless device 312-A.
  • the first set of time and frequency resources allocated for the repetitions of the first physical channel transmission for the first wireless device 312-A is punctured to provide the second set of time and frequency resources allocated for the repetition(s) of the second physical channel transmission for the second wireless device 312-B.
  • the second set of time and frequency resources allocated for the repetition(s) of the second physical channel transmission for the second wireless device 312-B is a subset of the first set of time and frequency resources allocated for the repetitions of the first physical channel transmission for the first wireless device 312-A.
  • the second set of time and frequency resources allocated for the repetition(s) of the second physical channel transmission for the second wireless device 312-B includes some set of time and frequency resources that punctures the first set of time and frequency resources allocated for the repetitions of the first physical channel transmission for the first wireless device 312-A.
  • the base station 302 transmits or receives some of the repetitions of the first physical channel transmission to or from the first wireless device 312-A on some of the first set of time and frequency resources other than those punctured by the second set of time and frequency resources allocated for the repetition(s) of the second physical channel transmission to the second wireless device 312-B (step 704).
  • the base station 302 also transmits or receives the repetition(s) of the second physical channel transmission to or from the second wireless device 312-B on the second set of time and frequency resources (step 706).
  • the first wireless device and the second wireless device use the same RAT.
  • both the first wireless device and the second wireless device are LTE-M UEs.
  • both the first wireless device and the second wireless device are NB-IoT UEs.
  • the first wireless device and the second wireless device use different RATs.
  • the first wireless device is either a LTE-M UE or a NB-IoT UE
  • the second wireless device is a LTE UE.
  • the first wireless device is either a LTE-M UE or a NB-IoT UE
  • the second wireless device is a NR UE.
  • the first set of time and frequency resources is a set of frequency resources in X transmission time periods (e.g., X consecutive transmission time periods or X non-consecutive transmission time periods), and the second set of time and frequency resources is some or all of the set of frequency resources in a Y transmission time periods (e.g., Y consecutive transmission time periods or Y non-consecutive
  • the transmission time periods are subframes or a resource unit comprising two or more subframes.
  • the maximum size of Y is determined by a (e.g., predefined or preconfigured) performance degradation limit for the first physical channel transmission.
  • the size of Y is used as link adaptation, i.e., if fewer repetitions are sufficient for correct decoding of the first physical channel transmission, then the number of repetitions that are sufficient can be used to determine the size (e.g., the maximum size) of Y.
  • both the first physical channel transmission and the second physical channel transmission are PDCCH transmissions.
  • both the first physical downlink channel transmission and the second physical downlink channel transmission are PDSCH transmissions. In some other embodiments both the first physical downlink channel transmission and the second physical downlink channel transmission are PUSCH transmissions. In some other embodiments both the first physical downlink channel transmission and the second physical downlink channel transmission are PRACH transmissions.
  • a set of time and frequency resources for repetitions of a physical channel transmission for one or more wireless devices is punctured to provide a set of time and frequency resources for one or more repetitions of a physical channel transmission for another wireless device.
  • a set of time and frequency resources XI may be allocated to a UE1 and a set of time and frequency resources X2 may be allocated to a UE2.
  • XI and X2 form the first set of time frequency resources X referred to above with respect to Figure 7. Then, XI and X2 (i.e., X) is punctured to provide a set of time and frequency resources Y for one or more repetitions of a physical channel transmission to/from another wireless device, UE3.
  • FIG. 8 is a flow chart that illustrates the operation of a wireless device according to at least some of the embodiments described herein.
  • the wireless device is a wireless device 312.
  • the wireless device 312 transmits or receives one or more repetitions of a physical channel transmission to or from the wireless device on a set of time and frequency resources that puncture a larger set of time and frequency resources allocated for a plurality of repetitions of a physical channel
  • the set of time and frequency resources are punctured from the larger set of time and frequency resources allocated for the plurality of repetitions of the physical channel transmission to or from the other wireless device.
  • the set of time and frequency resources include time and frequency resources punctured from the larger set of time and frequency resources allocated for the plurality of repetitions of the physical channel transmission to or from the other wireless device.
  • the wireless device and the other wireless device use the same RAT.
  • both the wireless device and the other wireless device are LTE-M UEs.
  • both the wireless device and the other wireless device are NB-IoT UEs.
  • the wireless device and the other wireless device use different RATs.
  • the other wireless device is either a LTE-M UE or a NB-IoT UE, and the wireless device is a LTE UE.
  • the other wireless device is either a LTE-M UE or a NB-IoT UE, and the wireless device is a NR UE.
  • the larger set of time and frequency resources is a set of frequency resources in X transmission time periods (e.g., X consecutive transmission time periods or X non-consecutive transmission time periods), and the set of time and frequency resources is some or all of the set of frequency resources in Y transmission time periods (e.g., Y consecutive transmission time periods or Y non-consecutive transmission time periods) from among the X transmission time periods.
  • X X
  • Y transmission time periods are the first Y transmission time periods of the X transmission time periods.
  • the Y transmission time periods are the first Y transmission time periods of the X transmission time periods.
  • transmission time periods are the last Y transmission time periods of the X transmission time periods.
  • the transmission time periods are subframes or a resource unit comprising two or more subframes.
  • both the physical channel transmission to or from the wireless device and the physical channel transmission to or from the other wireless device are PDCCH transmissions. In some other embodiments, both the physical channel transmission to or from the wireless device and the physical channel transmission to or from the other wireless device are PDSCH transmissions. In some other embodiments, both the physical channel transmission to or from the wireless device and the physical channel transmission to or from the other wireless device are PUSCH transmissions. In some other embodiments, both the physical channel transmission to or from the wireless device and the physical channel transmission to or from the other wireless device are PRACH transmissions.
  • FIG. 9 is a schematic block diagram of a radio access node 900 according to some embodiments of the present disclosure.
  • the radio access node 900 may be, for example, a base station 302 or 306.
  • the radio access node 900 includes a control system 902 that includes one or more processors 904 (e.g., Central Processing Units (CPUs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), and/or the like), memory 906, and a network interface 908.
  • the one or more processors 904 are also referred to herein as processing circuitry.
  • the radio access node 900 includes one or more radio units 910 that each includes one or more transmitters 912 and one or more receivers 914 coupled to one or more antennas 916.
  • the radio units 910 may be referred to or be part of radio interface circuitry.
  • the radio unit(s) 910 is external to the control system 902 and connected to the control system 902 via, e.g., a wired connection (e.g., an optical cable).
  • the radio unit(s) 910 and potentially the antenna(s) 916 are integrated together with the control system 902.
  • the one or more processors 904 operate to provide one or more functions of a radio access node 900 as described herein.
  • the function(s) are implemented in software that is stored, e.g., in the memory 906 and executed by the one or more processors 904.
  • Figure 10 is a schematic block diagram that illustrates a virtualized embodiment of the radio access node 900 according to some embodiments of the present disclosure. This discussion is equally applicable to other types of network nodes. Further, other types of network nodes may have similar virtualized architectures.
  • a "virtualized" radio access node is an implementation of the radio access node 900 in which at least a portion of the functionality of the radio access node 900 is implemented as a virtual component(s) (e.g., via a virtual machine(s) executing on a physical processing node(s) in a network(s)).
  • the radio access node 900 includes the control system 902 that includes the one or more processors 904 (e.g., CPUs, ASICs, FPGAs, and/or the like), the memory 906, and the network interface 908 and the one or more radio units 910 that each includes the one or more transmitters 912 and the one or more receivers 914 coupled to the one or more antennas 916, as described above.
  • the control system 902 is connected to the radio unit(s) 910 via, for example, an optical cable or the like.
  • the control system 902 is connected to one or more processing nodes 1000 coupled to or included as part of a network(s) 1002 via the network interface 908.
  • Each processing node 1000 includes one or more processors 1004 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 1006, and a network interface 1008.
  • functions 1010 of the radio access node 900 described herein are implemented at the one or more processing nodes 1000 or distributed across the control system 902 and the one or more processing nodes 1000 in any desired manner.
  • some or all of the functions 1010 of the radio access node 900 described herein are implemented as virtual components executed by one or more virtual machines implemented in a virtual environ ment(s) hosted by the processing node(s) 1000.
  • additional signaling or communication between the processing node(s) 1000 and the control system 902 is used in order to carry out at least some of the desired functions 1010.
  • the control system 902 may not be included, in which case the radio unit(s) 910 communicate directly with the processing node(s) 1000 via an appropriate network interface(s).
  • a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of radio access node 900 or a node (e.g., a processing node 1000)
  • a carrier comprising the aforementioned computer program product.
  • the carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
  • FIG 11 is a schematic block diagram of the radio access node 900 according to some other embodiments of the present disclosure.
  • the radio access node 900 includes one or more modules 1100, each of which is implemented in software.
  • the radio access node 900 provide the functionality of the radio access node 900 described herein. This discussion is equally applicable to the processing node 1000 of Figure 10 where the modules 1100 may be implemented at one of the processing nodes 1000 or distributed across multiple processing nodes 1000 and/or distributed across the processing node(s) 1000 and the control system 902.
  • FIG 12 is a schematic block diagram of a UE 1200 according to some embodiments of the present disclosure.
  • the UE 1200 includes one or more processors 1202 (e.g., CPUs, ASICs, FPGAs, and/or the like), memory 1204, and one or more transceivers 1206 each including one or more transmitters 1208 and one or more receivers 1210 coupled to one or more antennas 1212.
  • the transceiver(s) 1206 includes radio-front end circuitry connected to the antenna(s) 1212 that is configured to condition signals communicated between the antenna(s) 1212 and the processor(s) 1202, as will be appreciated by on of ordinary skill in the art.
  • the processors 1202 are also referred to herein as processing circuitry.
  • the transceivers 1206 are also referred to herein as radio circuitry.
  • the functionality of the UE 1200 described above may be fully or partially implemented in software that is, e.g., stored in the memory 1204 and executed by the processor(s) 1202.
  • the UE 1200 may include additional components not illustrated in Figure 12 such as, e.g., one or more user interface
  • an input/output interface including a display, buttons, a touch screen, a microphone, a speaker(s), and/or the like and/or any other components for allowing input of information into the UE 1200 and/or allowing output of information from the UE 1200
  • a power supply e.g., a battery and associated power circuitry
  • a computer program including instructions which, when executed by at least one processor, causes the at least one processor to carry out the functionality of the UE 1200 according to any of the embodiments described herein is provided.
  • a carrier comprising the aforementioned computer program product is provided.
  • the carrier is one of an electronic signal, an optical signal, a radio signal, or a computer readable storage medium (e.g., a non-transitory computer readable medium such as memory).
  • FIG. 13 is a schematic block diagram of the UE 1200 according to some other embodiments of the present disclosure.
  • the UE 1200 includes one or more modules 1300, each of which is implemented in software.
  • the module(s) 1300 provide the functionality of the UE 1200 described herein.
  • the communication system includes a telecommunication network 1400, such as a 3GPP-type cellular network, which comprises an access network 1402, such as a RAN, and a core network 1404.
  • the access network 1402 comprises a plurality of base stations 1406A, 1406B, 1406C, such as Node Bs, eNBs, gNBs, or other types of wireless Access Points (APs), each defining a corresponding coverage area 1408A, 1408B, 1408C.
  • Each base station 1406A, 1406B, 1406C is connectable to the core network 1404 over a wired or wireless connection 1410.
  • a first UE 1412 located in coverage area 1408C is configured to wirelessly connect to, or be paged by, the corresponding base station 1406C.
  • a second UE 1414 in coverage area 1408A is wirelessly connectable to the corresponding base station 1406A. While a plurality of UEs 1412, 1414 are illustrated in this example, the disclosed embodiments are equally applicable to a situation where a sole UE is in the coverage area or where a sole UE is connecting to the corresponding base station 1406.
  • the telecommunication network 1400 is itself connected to a host computer 1416, which may be embodied in the hardware and/or software of a standalone server, a cloud-implemented server, a distributed server, or as processing resources in a server farm.
  • the host computer 1416 may be under the ownership or control of a service provider, or may be operated by the service provider or on behalf of the service provider.
  • Connections 1418 and 1420 between the telecommunication network 1400 and the host computer 1416 may extend directly from the core network 1404 to the host computer 1416 or may go via an optional intermediate network 1422.
  • the intermediate network 1422 may be one of, or a combination of more than one of, a public, private, or hosted network; the intermediate network 1422, if any, may be a backbone network or the Internet; in particular, the intermediate network 1422 may comprise two or more sub-networks (not shown).
  • the communication system of Figure 14 as a whole enables connectivity between the connected UEs 1412, 1414 and the host computer 1416.
  • the connectivity may be described as an Over-the-Top (OTT) connection 1424.
  • the host computer 1416 and the connected UEs 1412, 1414 are configured to communicate data and/or signaling via the OTT connection 1424, using the access network 1402, the core network 1404, any intermediate network 1422, and possible further infrastructure (not shown) as
  • the OTT connection 1424 may be transparent in the sense that the participating communication devices through which the OTT connection 1424 passes are unaware of routing of uplink and downlink communications. For example, the base station 1406 may not or need not be informed about the past routing of an incoming downlink communication with data originating from the host computer 1416 to be forwarded (e.g., handed over) to a connected UE 1412. Similarly, the base station 1406 need not be aware of the future routing of an outgoing uplink communication originating from the UE 1412 towards the host computer 1416.
  • a host computer 1502 comprises hardware 1504 including a communication interface 1506 configured to set up and maintain a wired or wireless connection with an interface of a different communication device of the communication system 1500.
  • the host computer 1502 further comprises processing circuitry 1508, which may have storage and/or processing capabilities.
  • the processing circuitry 1508 may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions.
  • the host computer 1502 further comprises software 1510, which is stored in or accessible by the host computer 1502 and executable by the processing circuitry 1508.
  • the software 1510 includes a host application 1512.
  • the host application 1512 may be operable to provide a service to a remote user, such as a UE 1514 connecting via an OTT connection 1516 terminating at the UE 1514 and the host computer 1502.
  • the host application 1512 may provide user data which is transmitted using the OTT connection 1516.
  • the communication system 1500 further includes a base station 1518 provided in a telecommunication system and comprising hardware 1520 enabling it to communicate with the host computer 1502 and with the UE 1514.
  • the hardware 1520 may include a communication interface 1522 for setting up and maintaining a wired or wireless connection with an interface of a different communication device of the communication system 1500, as well as a radio interface 1524 for setting up and maintaining at least a wireless connection 1526 with the UE 1514 located in a coverage area (not shown in Figure 15) served by the base station 1518.
  • the communication interface 1522 may be configured to facilitate a connection 1528 to the host computer 1502.
  • connection 1528 may be direct or it may pass through a core network (not shown in Figure 15) of the telecommunication system and/or through one or more intermediate networks outside the telecommunication system.
  • the hardware 1520 of the base station 1518 further includes processing circuitry 1530, which may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions.
  • the base station 1518 further has software 1532 stored internally or accessible via an external connection.
  • the communication system 1500 further includes the UE 1514 already referred to.
  • the UE's 1514 hardware 1534 may include a radio interface 1536 configured to set up and maintain a wireless connection 1526 with a base station serving a coverage area in which the UE 1514 is currently located.
  • the hardware 1534 of the UE 1514 further includes processing circuitry 1538, which may comprise one or more programmable processors, ASICs, FPGAs, or combinations of these (not shown) adapted to execute instructions.
  • the UE 1514 further comprises software 1540, which is stored in or accessible by the UE 1514 and executable by the processing circuitry 1538.
  • the software 1540 includes a client application 1542.
  • the client application 1542 may be operable to provide a service to a human or non-human user via the UE 1514, with the support of the host computer 1502.
  • the executing host application 1512 may communicate with the executing client application 1542 via the OTT connection 1516 terminating at the UE 1514 and the host computer 1502.
  • the client application 1542 may receive request data from the host application 1512 and provide user data in response to the request data.
  • the OTT connection 1516 may transfer both the request data and the user data.
  • the client application 1542 may interact with the user to generate the user data that it provides.
  • the host computer 1502, the base station 1518, and the UE 1514 illustrated in Figure 15 may be similar or identical to the host computer 1416, one of the base stations 1406A, 1406B, 1406C, and one of the UEs 1412, 1414 of Figure 14, respectively.
  • the inner workings of these entities may be as shown in Figure 15 and independently, the surrounding network topology may be that of Figure 14.
  • the OTT connection 1516 has been drawn abstractly to illustrate the communication between the host computer 1502 and the UE 1514 via the base station 1518 without explicit reference to any intermediary devices and the precise routing of messages via these devices.
  • the network infrastructure may determine the routing, which may be configured to hide from the UE 1514 or from the service provider operating the host computer 1502, or both. While the OTT connection 1516 is active, the network infrastructure may further take decisions by which it dynamically changes the routing (e.g., on the basis of load balancing consideration or reconfiguration of the network).
  • the wireless connection 1526 between the UE 1514 and the base station 1518 is in accordance with the teachings of the embodiments described throughout this disclosure.
  • One or more of the various embodiments improve the performance of OTT services provided to the UE 1514 using the OTT connection 1516, in which the wireless connection 1526 forms the last segment. More precisely, the teachings of these embodiments may improve, e.g., latency and thereby provide benefits such as, e.g., reduced user waiting time, better responsiveness, etc.
  • a measurement procedure may be provided for the purpose of monitoring data rate, latency, and other factors on which the one or more embodiments improve.
  • the measurement procedure and/or the network functionality for reconfiguring the OTT connection 1516 may be implemented in the software 1510 and the hardware 1504 of the host computer 1502 or in the software 1540 and the hardware 1534 of the UE 1514, or both.
  • sensors may be deployed in or in association with communication devices through which the OTT connection 1516 passes; the sensors may participate in the measurement procedure by supplying values of the monitored quantities exemplified above, or supplying values of other physical quantities from which the software 1510, 1540 may compute or estimate the monitored quantities.
  • the reconfiguring of the OTT connection 1516 may include message format, retransmission settings, preferred routing, etc.; the reconfiguring need not affect the base station 1518, and it may be unknown or imperceptible to the base station 1518. Such procedures and functionalities may be known and practiced in the art.
  • measurements may involve proprietary UE signaling facilitating the host computer 1502's measurements of throughput, propagation times, latency, and the like.
  • the measurements may be implemented in that the software 1510 and 1540 causes messages to be transmitted, in particular empty or 'dummy' messages, using the OTT connection 1516 while it monitors propagation times, errors, etc.
  • FIG. 16 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 14 and 15. For simplicity of the present disclosure, only drawing references to Figure 16 will be included in this section.
  • the host computer provides user data.
  • sub-step 1602 (which may be optional) of step 1600, the host computer provides the user data by executing a host application.
  • the host computer initiates a transmission carrying the user data to the UE.
  • step 1606 the base station transmits to the UE the user data which was carried in the transmission that the host computer initiated, in accordance with the teachings of the embodiments described throughout this disclosure.
  • step 1608 the UE executes a client application associated with the host application executed by the host computer.
  • FIG 17 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 14 and 15. For simplicity of the present disclosure, only drawing references to Figure 17 will be included in this section.
  • the host computer provides user data.
  • the host computer provides the user data by executing a host application.
  • the host computer initiates a transmission carrying the user data to the UE. The transmission may pass via the base station, in accordance with the teachings of the embodiments described throughout this disclosure.
  • step 1704 (which may be optional), the UE receives the user data carried in the transmission.
  • FIG. 18 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 14 and 15. For simplicity of the present disclosure, only drawing references to Figure 18 will be included in this section.
  • step 1800 the UE receives input data provided by the host computer. Additionally or alternatively, in step 1802, the UE provides user data.
  • sub-step 1804 (which may be optional) of step 1800, the UE provides the user data by executing a client application.
  • sub-step 1806 (which may be optional) of step 1802
  • the UE executes a client application which provides the user data in reaction to the received input data provided by the host computer.
  • the executed client application may further consider user input received from the user.
  • the UE initiates, in sub-step 1808 (which may be optional), transmission of the user data to the host computer.
  • the host computer receives the user data transmitted from the UE, in accordance with the teachings of the embodiments described throughout this disclosure.
  • FIG 19 is a flowchart illustrating a method implemented in a communication system, in accordance with one embodiment.
  • the communication system includes a host computer, a base station, and a UE which may be those described with reference to Figures 14 and 15. For simplicity of the present disclosure, only drawing references to Figure 19 will be included in this section.
  • the base station receives user data from the UE.
  • the base station initiates transmission of the received user data to the host computer.
  • step 1904 (which may be optional)
  • the host computer receives the user data carried in the transmission initiated by the base station.
  • any appropriate steps, methods, features, functions, or benefits disclosed herein may be performed through one or more functional units or modules of one or more virtual apparatuses.
  • Each virtual apparatus may comprise a number of these functional units.
  • These functional units may be implemented via processing circuitry, which may include one or more microprocessor or microcontrollers, as well as other digital hardware, which may include Digital Signal Processor (DSPs), special-purpose digital logic, and the like.
  • the processing circuitry may be configured to execute program code stored in memory, which may include one or several types of memory such as Read Only Memory (ROM), Random Access Memory (RAM), cache memory, flash memory devices, optical storage devices, etc.
  • Program code stored in memory includes program instructions for executing one or more telecommunications and/or data communications protocols as well as instructions for carrying out one or more of the techniques described herein.
  • the processing circuitry may be used to cause the respective functional unit to perform corresponding functions according one or more embodiments of the present disclosure.
  • Embodiment 1 A method performed by a wireless device (312), the method comprising transmitting or receiving one or more repetitions of a physical channel transmission to or from the wireless device (312) on a set of time and frequency resources, the set of time and frequency resources being from a larger set of time and frequency resources allocated for repetitions of one or more physical channel transmissions to or from one or more other wireless devices.
  • Embodiment 2 The method of embodiment 1 wherein the wireless device (312) and the one or more other wireless devices use the same radio access technology.
  • Embodiment 3 The method of embodiment 1 wherein both the wireless device (312) and the one or more other wireless devices are LTE-M UEs.
  • Embodiment 4 The method of embodiment 1 wherein both the wireless device (312) and the one or more other wireless devices are NB-IoT UEs.
  • Embodiment 5 The method of embodiment 1 wherein the wireless device (312) and the one or more other wireless devices use different radio access technologies.
  • Embodiment 6 The method of embodiment 5 wherein the one or more other wireless devices are either LTE-M UEs or NB-IoT UEs, and the wireless device (312) is a LTE UE.
  • Embodiment 7 The method of embodiment 5 wherein the one or more other wireless devices are either LTE-M UEs or NB-IoT UEs, and the wireless device (312) is a NR UE.
  • Embodiment 8 The method of any one of embodiments 1 to 7 wherein the larger set of time and frequency resources is a set of frequency resources in X transmission time periods, and the set of time and frequency resources is some or all of the set of frequency resources in Y transmission time periods from among the X transmission time periods.
  • Embodiment 9 The method of embodiment 8 wherein X >> Y.
  • Embodiment 10 The method of embodiment 8 or 9 wherein the Y transmission time periods are the first Y transmission time periods of the X transmission time periods.
  • Embodiment 11 The method of embodiment 8 or 9 wherein the Y transmission time periods are the last Y transmission time periods of the X transmission time periods.
  • Embodiment 12 The method of any one of embodiments 8 to 11 wherein a maximum size of Y is determined by a performance degradation limit for the first physical channel transmission.
  • Embodiment 13 The method of any one of embodiments 8 to 11 wherein a size of Y is a function of a number of repetitions of the first physical channel transmission needed for successful decoding of the first physical channel transmission.
  • Embodiment 14 The method of any one of embodiments 8 to 13 wherein the transmission time periods are subframes or a resource unit comprising two or more subframes.
  • Embodiment 15 The method of any one of embodiments 1 to 14 wherein both the physical channel transmission to or from the wireless device (312) and the one or more physical channel transmissions to or from the one or more other wireless devices are physical downlink control channel transmissions.
  • Embodiment 16 The method of any one of embodiments 1 to 14 wherein both the physical channel transmission to or from the wireless device (312) and the one or more physical channel transmissions to or from the one or more other wireless devices are physical downlink shared channel transmissions.
  • Embodiment 17 The method of any one of embodiments 1 to 14 wherein both the physical channel transmission to or from the wireless device (312) and the one or more physical channel transmissions to or from the one or more other wireless devices are physical uplink shared channel transmissions.
  • Embodiment 18 The method of any one of embodiments 1 to 14 wherein both the physical channel transmission to or from the wireless device (312) and the one or more physical channel transmissions to or from the one or more other wireless devices are physical random access channel transmissions.
  • Embodiment 19 The method of any of the previous embodiments, further comprising providing user data and forwarding the user data to a host computer via the transmission to a base station (302, 306).
  • Embodiment 20 A method performed by a base station (302, 306) for overloading on radio resources, the method comprising:
  • Embodiment 21 The method of embodiment 20 wherein the one or more first wireless devices (312) and the second wireless device (312) use the same radio access technology.
  • Embodiment 22 The method of embodiment 21 wherein both the one or more first wireless devices (312) and the second wireless device (312) are LTE-M UEs.
  • Embodiment 23 The method of embodiment 21 wherein both the one or more first wireless devices (312) and the second wireless device (312) are NB-IoT UEs.
  • Embodiment 24 The method of embodiment 20 wherein the one or more first wireless devices (312) and the second wireless device (312) use different radio access technologies.
  • Embodiment 25 The method of embodiment 24 wherein the one or more first wireless devices (312) are either LTE-M UEs or NB-IoT UEs, and the second wireless device (312) is a LTE UE.
  • Embodiment 26 The method of embodiment 24 wherein the one or more first wireless devices (312) are either LTE-M UEs or NB-IoT UEs, and the second wireless device (312) is a NR UE.
  • Embodiment 27 The method of any one of embodiments 20 to 26 wherein the first set of time and frequency resources is a set of frequency resources in X transmission time periods, and the second set of time and frequency resources is some or all of the set of frequency resources in Y transmission time periods from among the X transmission time periods.
  • Embodiment 28 The method of embodiment 27 wherein X >> Y.
  • Embodiment 29 The method of embodiment 27 or 28 wherein the Y
  • transmission time periods are the first Y transmission time periods of the X transmission time periods.
  • Embodiment 30 The method of embodiment 27 or 28 wherein the Y
  • Embodiment 31 The method of any one of embodiments 27 to 30 wherein the transmission time periods are subframes or a resource unit comprising two or more subframes.
  • Embodiment 32 The method of any one of embodiments 20 to 31 wherein both the one or more first physical channel transmissions and the second physical channel transmission are physical downlink control channel transmissions.
  • Embodiment 33 The method of any one of embodiments 20 to 31 wherein both the one or more first physical channel transmissions and the second physical channel transmission are physical downlink shared channel transmissions.
  • Embodiment 34 The method of any one of embodiments 20 to 31 wherein both the one or more first physical channel transmissions and the second physical channel transmission are physical uplink shared channel transmissions.
  • Embodiment 35 The method of any one of embodiments 20 to 31 wherein both the one or more first physical channel transmissions and the second physical channel transmission are physical random access channel transmissions.
  • Embodiment 36 The method of any of the previous embodiments, further comprising obtaining user data and forwarding the user data to a host computer or a wireless device (312).
  • Embodiment 37 A wireless device, the wireless device comprising: processing circuitry configured to perform any of the steps of any of the Group A embodiments; and power supply circuitry configured to supply power to the wireless device.
  • Embodiment 38 A base station, the base station comprising: processing circuitry configured to perform any of the steps of any of the Group B embodiments; and power supply circuitry configured to supply power to the base station.
  • Embodiment 39 A User Equipment, UE, the UE comprising: an antenna configured to send and receive wireless signals; radio front-end circuitry connected to the antenna and to processing circuitry, and configured to condition signals communicated between the antenna and the processing circuitry; the processing circuitry being configured to perform any of the steps of any of the Group A embodiments; an input interface connected to the processing circuitry and configured to allow input of information into the UE to be processed by the processing circuitry; an output interface connected to the processing circuitry and configured to output information from the UE that has been processed by the processing circuitry; and a battery connected to the processing circuitry and configured to supply power to the UE.
  • UE User Equipment
  • Embodiment 40 A communication system including a host computer
  • processing circuitry configured to provide user data; and a communication interface configured to forward the user data to a cellular network for transmission to a User Equipment, UE; wherein the cellular network comprises a base station having a radio interface and processing circuitry, the base station's processing circuitry configured to perform any of the steps of any of the Group B embodiments.
  • Embodiment 41 The communication system of the previous embodiment further including the base station.
  • Embodiment 42 The communication system of the previous 2 embodiments, further including the UE, wherein the UE is configured to communicate with the base station.
  • Embodiment 43 The communication system of the previous 3 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application, thereby providing the user data; and the UE comprises processing circuitry configured to execute a client application associated with the host application.
  • Embodiment 44 A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising: at the host computer, providing user data; and at the host computer, initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the base station performs any of the steps of any of the Group B embodiments.
  • Embodiment 45 The method of the previous embodiment, further comprising, at the base station, transmitting the user data.
  • Embodiment 46 The method of the previous 2 embodiments, wherein the user data is provided at the host computer by executing a host application, the method further comprising, at the UE, executing a client application associated with the host application.
  • Embodiment 47 A User Equipment, UE, configured to communicate with a base station, the UE comprising a radio interface and processing circuitry configured to perform the method of the previous 3 embodiments.
  • Embodiment 48 A communication system including a host computer
  • processing circuitry configured to provide user data; and a communication interface configured to forward user data to a cellular network for transmission to a User Equipment, UE; wherein the UE comprises a radio interface and processing circuitry, the UE's components configured to perform any of the steps of any of the Group A
  • Embodiment 49 The communication system of the previous embodiment, wherein the cellular network further includes a base station configured to communicate with the UE.
  • Embodiment 50 The communication system of the previous 2 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application, thereby providing the user data; and the UE's processing circuitry is configured to execute a client application associated with the host application.
  • Embodiment 51 A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising: at the host computer, providing user data; and at the host computer, initiating a transmission carrying the user data to the UE via a cellular network comprising the base station, wherein the UE performs any of the steps of any of the Group A embodiments.
  • Embodiment 52 The method of the previous embodiment, further comprising at the UE, receiving the user data from the base station.
  • Embodiment 53 A communication system including a host computer
  • communication interface configured to receive user data originating from a transmission from a User Equipment, UE, to a base station; wherein the UE comprises a radio interface and processing circuitry, the UE's processing circuitry configured to perform any of the steps of any of the Group A embodiments.
  • Embodiment 54 The communication system of the previous embodiment, further including the UE.
  • Embodiment 55 The communication system of the previous 2 embodiments, further including the base station, wherein the base station comprises a radio interface configured to communicate with the UE and a communication interface configured to forward to the host computer the user data carried by a transmission from the UE to the base station.
  • the base station comprises a radio interface configured to communicate with the UE and a communication interface configured to forward to the host computer the user data carried by a transmission from the UE to the base station.
  • Embodiment 56 The communication system of the previous 3 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application; and the UE's processing circuitry is configured to execute a client application associated with the host application, thereby providing the user data.
  • Embodiment 57 The communication system of the previous 4 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application, thereby providing request data; and the UE's processing circuitry is configured to execute a client application associated with the host application, thereby providing the user data in response to the request data.
  • Embodiment 58 A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising: at the host computer, receiving user data transmitted to the base station from the UE, wherein the UE performs any of the steps of any of the Group A embodiments.
  • Embodiment 59 The method of the previous embodiment, further comprising, at the UE, providing the user data to the base station.
  • Embodiment 60 The method of the previous 2 embodiments, further comprising: at the UE, executing a client application, thereby providing the user data to be transmitted; and at the host computer, executing a host application associated with the client application.
  • Embodiment 61 The method of the previous 3 embodiments, further comprising: at the UE, executing a client application; and at the UE, receiving input data to the client application, the input data being provided at the host computer by executing a host application associated with the client application; wherein the user data to be transmitted is provided by the client application in response to the input data.
  • Embodiment 62 A communication system including a host computer comprising a communication interface configured to receive user data originating from a transmission from a User Equipment, UE, to a base station, wherein the base station comprises a radio interface and processing circuitry, the base station's processing circuitry configured to perform any of the steps of any of the Group B embodiments.
  • a host computer comprising a communication interface configured to receive user data originating from a transmission from a User Equipment, UE, to a base station, wherein the base station comprises a radio interface and processing circuitry, the base station's processing circuitry configured to perform any of the steps of any of the Group B embodiments.
  • Embodiment 63 The communication system of the previous embodiment further including the base station.
  • Embodiment 64 The communication system of the previous 2 embodiments, further including the UE, wherein the UE is configured to communicate with the base station.
  • Embodiment 65 The communication system of the previous 3 embodiments, wherein: the processing circuitry of the host computer is configured to execute a host application; and the UE is configured to execute a client application associated with the host application, thereby providing the user data to be received by the host computer.
  • Embodiment 66 A method implemented in a communication system including a host computer, a base station, and a User Equipment, UE, the method comprising: at the host computer, receiving, from the base station, user data originating from a transmission which the base station has received from the UE, wherein the UE performs any of the steps of any of the Group A embodiments.
  • Embodiment 67 The method of the previous embodiment, further comprising at the base station, receiving the user data from the UE.
  • Embodiment 68 The method of the previous 2 embodiments, further comprising at the base station, initiating a transmission of the received user data to the host computer.

Abstract

Les systèmes et procédés décrits dans la description de la présente invention sont destinés à une surcharge sur des ressources radio utilisées pour adresser des dispositifs à l'aide de répétitions basées sur le temps ou la fréquence. L'invention concerne des modes de réalisation d'un procédé mis en œuvre par un dispositif sans fil et des modes de réalisation correspondants d'un dispositif sans fil. Dans certains modes de réalisation, un procédé mis en œuvre par un dispositif sans fil consiste à transmettre ou à recevoir une ou plusieurs répétitions d'une transmission de canaux physiques vers ou en provenance du dispositif sans fil sur un ensemble de ressources temporelles et fréquentielles qui perforent un ensemble plus grand de ressources temporelles et fréquentielles attribuées à des répétitions d'une ou plusieurs transmissions de canaux physiques vers ou en provenance d'un ou de plusieurs autres dispositifs sans fil. De cette manière, un rendement spectral élevé est obtenu tout en prenant également en charge une bonne couverture par l'intermédiaire des répétitions.
PCT/IB2019/056539 2018-07-31 2019-07-31 Surcharge de ressources radio de faible complexité WO2020026168A1 (fr)

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CN201980064643.3A CN112753182A (zh) 2018-07-31 2019-07-31 低复杂度无线电资源过载

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CN112753182A (zh) 2021-05-04

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