Rate-matching for on-demand synchronization signal block (OD-SSB) operation
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2026-08-13
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Figure CN2025075849_13082026_PF_FP_ABST
Abstract
Description
RATE-MATCHING FOR ON-DEMAND SYNCHRONIZATION SIGNAL BLOCK (OD-SSB) OPERATIONFIELD
[0001] The present disclosure is related to wireless technology and rate-matching for on-demand synchronization signal block (OD-SSB) operation.BACKGROUND
[0002] As the number of mobile devices within wireless networks, and the demand for mobile data traffic, continue to increase, changes are made to system requirements and architectures to better address current and anticipated demands. For example, some wireless communication networks may be developed to implement fifth generation (5G) or new radio (NR) technology, sixth generation (6G) technology, and so on. An aspect of such technology includes addressing how wireless devices wireless resources may be allocated to communications between user equipment (UEs) and base stations (which may include one or more cells) .
[0003] In general, NR will evolve based on third generation partnership project (3GPP) long term evolution (LTE) -Advanced technology with additional enhanced radio access technologies (RATs) to enable seamless and faster wireless connectivity solutions. As 5G is becoming pervasive across industries and geographical areas, handling more advanced services and applications requiring very high data rates (e.g. XR) , networks are being denser, use more antennas, larger bandwidths and more frequency bands. The environmental impact of 5G should stay under control, including novel solutions to improve network energy savings. As network (NW) complexity and cost continues to increase, NW devices, their components and processing methods can operate to save energy by various means. Network energy savings for the NW can be defined among different power states of base station categories; in particular, including active downlink (DL) / uplink (UL) power states considering a static part of power consumption and a dynamic part of power consumption. The latter part reflects dynamic power consumption with respect to transmission / reception resource configurations in time, frequency, spatial and power domains. Although various means to conserve power, not just for cost savings, but environmental savings, have been proposed from the UE side of the NW, there remains a demand for the NW and operators to conserve cost as well.BRIEF DESCRIPTION OF THE DRAWINGS
[0004] FIG. 1 illustrates an example network configuration for carrier aggregation (CA) with a primary component carrier (PCC) and a secondary component carrier (SCC) for resource matching in accordance with various aspects.
[0005] FIG. 2 illustrates an example synchronization signal block (SSB) in accordance with various aspects.
[0006] FIG. 3 illustrates an example signal flow for resource mapping PDSCH with SSB in an on-demand SSB (OD-SSB) mode in accordance with various aspects.
[0007] FIG. 4 illustrates an example of configuration information for resource mapping PDSCH with SSB in an on-demand SSB (OD-SSB) mode in accordance with various aspects.
[0008] FIG. 5 illustrates another example of configuration information for resource mapping PDSCH with SSB in an on-demand SSB (OD-SSB) mode in accordance with various aspects.
[0009] FIG. 6 illustrates various examples OD-SSB operation for resource mapping PDSCH with SSB in accordance with various aspects.
[0010] FIG. 7 illustrates an example of resource mapping PDSCH with SSB in an on-demand SSB (OD-SSB) mode in accordance with various aspects.
[0011] FIG. 8 illustrates another example of resource mapping PDSCH with SSB in an on-demand SSB (OD-SSB) mode in accordance with various aspects.
[0012] FIG. 9 illustrates another example of resource mapping PDSCH with SSB in an on-demand SSB (OD-SSB) mode in accordance with various aspects.
[0013] FIG. 10 illustrates an example process flow of resource mapping PDSCH with SSB in an on-demand SSB (OD-SSB) mode in accordance with various aspects.
[0014] FIG. 11 illustrates a block diagram illustrating an example of user equipment (s) (UEs) communicatively coupled to a network with network components as peer devices useable in connection with various embodiments (aspects) described herein.
[0015] FIG. 12 illustrates an example simplified block diagram of a UE wireless communication device or other network device / component (e.g., base station, eNB, gNB) in accordance with various aspects.DETAILED DESCRIPTION
[0016] The following detailed description refers to the accompanying drawings. Like reference numbers in different drawings may identify the same or similar features, elements, operations, etc. Additionally, the present disclosure is not limited to the following description as other implementations may be utilized, and structural or logical changes made, without departing from the scope of the present disclosure.
[0017] Mobile communication networks may include one or more types and / or generations of wireless communication networks, such as 4th generation (4G) (e.g., Long-Term Evolution (LTE) ) networks, 5th generation (5G) or new radio (NR) networks, etc. Such networks may include user equipment (UEs) and base stations (BSs) that communicate with one another wirelessly, while configuring network energy savings. As an example, on-demand synchronization signal block (OD-SSB) operations are being developed for network energy savings. A user equipment (UE) detects synchronization signal blocks (SSBs) according to the SSB transmission periodicity indicated to the UE (e.g., a system information block (SIB) or other indication) . While the network normally has a longer SSB transmission periodicity to save power (e.g., an always-on SSB mode) , SSB signaling can provide for a shorter periodicity to facilitate a faster cell search for a user equipment (UE) to save energy as well, such as in an on-demand SSB (OD-SSB mode) . Rather than only having an always-on SSB (AO-SBB) signal being transmitted from the network on a primary cell (PCell) , the network can further power off and on the SSB transmission for the secondary component carrier (SCC) of a secondary cell (SCell) for the UE in a connected mode. Depending on the network condition, the network can turn off or on the SSB transmission for SCell without impacting the AO-SSB transmission expected by legacy UEs.
[0018] SSB transmission can be configured by the network to save network energy in various ways, including an OD-SSB mode of operation. In OD-SSB mode, the SSB signal used by UEs to synchronize signaling with the network or base station may only be transmitted when demanded. OD-SSB allows for energy savings by not constantly broadcasting the SSB signal when devices are not actively searching for the network in a particular area (e.g., an SCell) and is a way to activate the SSB based on a demand of the UE activity in connected state with intra- / inter-band carrier aggregation (CA) .
[0019] For example, the network (or base station) can configure the UE with one or more component carriers (CCs) , where the CCs are deactivated (together without SSB transmission (s) ) except for a primary component carrier (PCC) of a PCell for connection to the network. When a demand for additional data throughput is present, the SSB transmission can be triggered before an SCC activation for the network to determine a signal quality of one or more SCCs of an SCell through measurements performed by the UE. When a PCell approaches a load capacity for the PCell, the SCell can be activated (e.g., via an SCell activation command or activation signal) for load balancing.
[0020] For non-collocated carrier aggregation (CA) between the PCell and SCell, where different base stations are used for data, the SSB transmission can be activated before SCell activation so that the UE can acquire time / frequency synchronization for the SCell, which is not quasi-collocated (QCLed) with the PCell. For collocated CA between the PCell and SCell, channel sate information reference signal (CSI-RS) based radio resource management (RRM) measurement can be configured for SSB-less operation on the SCell; although, currently a majority of UEs utilize SSB based RRM measurement operation. The UE may trigger a request (e.g. by a wake-up-signal (WUS) , or other signaling) for the network to send SSB transmission (s) to perform SSB based RRM measurement on the SCell.
[0021] Depending on a mode of SSB configuration / activation / transmission / termination, a rate-matching behavior can be specified or configured by the network (e.g., gNB, base station, or other network component) for the UE to maximize usage of resources. When rate-matching (also referred to as resource mapping) , the UE can utilize an available code rate by selecting or pruning bits in a memory or buffer (e.g., a circular buffer or the like) . Rate-matching can be useful because a number of available resource elements (REs) or physical resource blocks (PRBs) in a slot may vary due to the presence or absence of various physical channel signals, reserved / allocated resources, or reference signals. For example, the number of REs for a physical downlink shared channel (PDSCH) in a slot configured with SSB can be different in slots without the SSB. Rate-matching operations can be used to adapt the variations of the available PDSCH REs in this case for scheduling resources of one or more PRBs or REs in orthogonal frequency domain multiplexing (OFDM) symbols for a PDSCH. In this case, the network node (e.g., gNB or other base station) or the UE may know the number of available PDSCH REs and the RE locations in a resource block (RB) . This PDSCH-to-RE mapping information can be used for a correct PDSCH decoding; otherwise, a mismatch could arise between the REs that the PDSCH is transmitted on and the REs over which the PDSCH is received and decoded, for example.
[0022] As discussed herein, rate-matching and resource mapping can be used alternatingly / interchangeably for discussion. When a UE performs rate matching on a PDSCH, the UE can dynamically adjust the coded data rate to align or match the allocated resource block sizes on the downlink. The UE thus adapts transmission to different channel conditions by repeating or puncturing bits within the data stream to ensure data fits or aligns with the available PDSCH resource allocation provided by the network along with other signaling (e.g., SSB signaling) .
[0023] In an aspect, resource mapping can be performed for the PDSCH around an OD-SSB based on configuration information received from the network. For example, the UE can receive configuration information that indicates SSB transmission positions in a secondary component carrier for an operation of an SSB activation or an SSB deactivation, in particular in an OD-SSB mode of operation. The UE receives the PDSCH and determines whether one or more REs, or PRBs are available for the PDSCH in an OFDM symbol based on the SSB transmission positions or other configuration information (e.g., a rate matching pattern parameter of a same or different configuration) . The configuration information can include indications of SSB transmissions positions in an SSB transmission burst on an SCC. When the UE is configured with, or provided, an OD-SSB configuration, or other configuration, with a configuration parameter of the configuration information, the REs or PRBs that would otherwise be available for PDSCH can be identified as unavailable. The UE can thus perform resource mapping of the PDSCH around the the SSB transmission in an OD-SSB mode of the SCC based on the configuration information.
[0024] In one example, the configuration information can include an SSB configuration or an SSB configuration parameter indicating the SSB transmission positions in a burst. The SSB configuration parameter can be an SSB positions in burst (ssb-PositionslnBurst) parameter, or an ssb-PositionslnBurst release 19 (ssb-PositionslnBurst-r19) parameter for a no always-on SSB on a cell (e.g., no-always on mode, OD-SSB mode or the like) . The configuration or parameter can include bits associated with SSB indices, respectively, which can each indicate based on their value whether PDSCH resource allocation overlaps with physical resource blocks (PRBs) comprising SSB transmission resources at each SSB index. Based on the configuration information, the UE can resource map the PDSCH with SSB transmissions at SSB indices indicated to correspond with REs of the PDSCH. At SSB indices corresponding to one or more bits indicating there is no SSB transmission, the PDSCH can be mapped to REs in an RB that would otherwise be used for the OD-SSB transmission, in which case resource mapping is not performed because in any of these SSB indices, REs of the PDSCH are not overlapping with those of an SSB transmission.
[0025] In an aspect, when the network is providing the SSB transmission in an AO-SSB mode to transmit the SSB transmission with periodicity on a cell or CC (e.g., PCell CC or other CC) , the associated configuration information can include an SSB configuration or configuration parameter, or an RRC configuration / parameter. This configuration parameter can be an ssb-PositionslnBurst parameter, an ssb-PositionslnBurst-release 19 (ssb-PositionslnBurst-r19) parameter, or an ssb-PositionslnBurst parameter of the AO-SSB for use in the SCC of an SCell. In particular, the UE can resource map the PDSCH with the OD-SSB transmission based on configuration parameter. For example, the UE can utilize the ssb-PositionslnBurst parameter of an AO-SSB by reusing the SSB positions of the AO-SSB for the SCC when determining that REs or PRBs are available for the PDSCH in OFDM symbols based on the configuration / parameter of the configuration information received, and for those resources unavailable resource map the PDSCH with the SSB transmission resources without considering a physical cell identity (PCI) or physical cell ID.
[0026] In an aspect, the UE can resource map the PDSCH with an SSB transmission based on an SSB activation / deactivation. The UE can receive a medium access control (MAC) control element (MAC-CE) with an SSB activation / deactivation command, or an RRC configuration message or signal with a parameter that indicates an SSB activation / deactivation. The SSB activation can initiate SSB transmission in an OD-SSB transmission mode. In response to receiving the SSB activation, the UE can resource map the PDSCH with the SSB transmission based on the SSB positions in a burst as indicated in the configuration information or a configuration parameter of the configuration information for associated SSB indices. In response to receiving, via the MAC-CE or the RRC transmission, an SSB deactivation, the UE can use resource elements (REs) that previously overlapped with the SSB transmission or were determined unavailable for the PDSCH for processing or allocating those resources for the PDSCH.
[0027] In an aspect, the UE can perform resource mapping of the PDSCH with the SSB transmission based on a rate-matching pattern configuration parameter (e.g., odssb-ratematchingpattern parameter) , or a resource mapping pattern configuration parameter, which could be in an OD-SSB configuration, for example, that is independent of the SSB transmission positions in a burst as indicated in the configuration information received (e.g., ssb-PositionslnBurst, ssb-PositionslnBurst-r19, or the like parameter) . The rate-matching pattern configuration parameter can include a bitmap that indicates a rate-matching pattern for the UF to resource mapping of the PDSCH with the SSB signaling at particular SSB indices and not at others, for example.
[0028] Additionally, or alternatively, the UE can determine one or more time domain locations of the SSB transmission based on an SSB periodicity from an RRC configuration message and at least one of: a system frame number (SFN) offset, a half-frame index, an SSB time offset, or a parameter that indicates a time offset between an AO-SSB and the SSB transmission. The AO-SSB could be configured for a PCC on an PCell, while the SSB transmission is in an OD-SSB mode on SCC of an SCell, for example. As such, the UE can resource match the PDSCH around the SSB transmission at particular SSB indices or time domain locations of the SSB transmission based on the one or more time domain locations determined.
[0029] Other various aspects related to resource mapping in OD-SSB operation for network energy savings are further described herein with reference to the figures.
[0030] FIG. 1 illustrates a UE 110 in a carrier aggregation (CA) mode 100 with a BS 122. In CA mode 100, the UE 110 and BS 122 can utilize two or more component carriers including a primary component carrier (PCC) 106 of a primary cell (PCell) 102 and a secondary component carrier (SCC) 108 of a secondary cell (SCell) 104 operating at one or more frequencies to increase data rates as a data channel.
[0031] In this example, the PCC 106 of PCell 102 and the SCC 108 of SCell 104 can be collocated to perform CA between the two carriers as a same or different frequency band, but can also be non-collocated with the PCell 102 and SCell 104 originating from different geographical base stations or distributed components (not shown) . For collocated CA between the PCell 102 and SCell 104, the UE 110 can be configured to provide a request (e.g. by a wake-up-signal (WUS) , or other signaling) for the network to provide SSB transmission (s) and then perform SSB based RRM measurement on the SCell 104; the SSB transmission (s) here can be in an AO-SSB mode of operation or a no AO-SSB mode of operation (e.g., an OD-SSB mode) . For non-collocated CA between the PCell 102 and SCell 104, SSB transmission can be activated so that the UE 110 can acquire time / frequency synchronization for the SCell 104, which is not quasi-collocated (QCLed) with the PCell 102.
[0032] The network (NW) or base station (BS) 122 can configure the U E 110 with CCs for OD-SSB transmission, where the CCs can be deactivated (together or independently without SSB transmission (s) ) except for the PCC 106 of a PCell 102 for connection to the network. When a demand for additional data throughput is detected or received by request, the base station 122 can initiate SSB transmission before an SCC activation to determine a signal quality of one or more SCCs 108 of SCell 104 through measurements performed and provided by the UE 110. When the PCell 102 satisfies a load capacity or threshold, the base station 122 can activate, or turn on, SCell 104 via an SCell activation in a radio resource control (RRC) signal or an SCell activation command in a medium access control control element (MAC-CE) to the UE 110 for load balancing. In this manner, network energy savings can be realized by not always transmitting SSB transmission.
[0033] Various aspects herein can further provide network energy savings. Because particular transmissions consume larger amounts of energy over the NW than others, focusing on these transmissions by making them “on-demand” and their associated processes can further optimize NW energy savings. For example, the NW can configure on-demand SSB transmissions by triggering (activating / enabling) UEs to receive SSB transmissions according to on-demand SSB operations, by signaling them to stop or deactivate, or implicitly ceasing the energy consuming operation after a duration or an expiration of a timer.
[0034] Procedures and signaling method (s) can support on-demand SCell operation for the UE 110 in connected mode configured with CA, for intra- / inter-band CA. In particular, triggering method (s) can select from a UE uplink wake-up-signal (WUS) using an existing signal / channel, cell on / off indication via backhaul, SCell activation / deactivation signaling for operations of OD-SSB. The NW or BS 122 can generate, or the UE 110 can process, L1 signaling by the physical (PHY) layer, layer 2 (L2) signaling by the medium access control (MAC) , or layer 3 (L3) by the NW layer that corresponds to an activation or deactivation of an SSB transmissions in an OD-SSB mode. The BS 122 can notify the UE 110 that an SSB transmission of an OD-SSB mode is going to take place via an MAC-CE or an RRC, for example, in order to activate on-demand SSB operations on the SCC 108 by the UE 110, including monitoring, receiving, decoding processing, resource mapping the on-demand SSB / SIB1 transmission. The activation signaling can be generated in response to a UE request, or be independent of a UE request by NW determination alone, for example.
[0035] In an aspect, the UE 110 can operate rate-matching or resource mapping behavior according to SSB activation / deactivation of an OD-SSB mode of operation. The UE 110 can be configured to resource map the PDSCH with the SSB transmission resource based on the SSB transmission positions configured in an SSB burst, regardless of, or without consideration of a physical cell identity (PCI) and based on REs, or the PRBs, identified as being available / unavailable for the PDSCH in the OFDM symbol.
[0036] In aspect, the UE 110 can determine whether an RE or PRB comprises an SSB transmission resource that is unavailable for the PDSCH in the OFDM symbol based on a SSB positions-in-a-burst (ssb-PositionslnBurst) parameter of configuration information (e.g., an OD-SSB configuration, an RRC configuration, or other configuration information) , a rate-matching pattern parameter (e.g., odssb-ratematchingpattern, resource mapping pattern configuration parameter, or other rate matching / resource mapping parameter) , or both for further assurance of signaling reception. In this manner, the UE 110 can optimize data transmission by ensuring the coded data rates align with the available resource allocation for the PDSCH along with REs or PRBs not available in OFDM symbols for the PDSCH, but may be utilized with potential SSB transmission positions. The rate-matching or resource mapping can be performed with or without consideration of a PCI, and regardless of whether the PCI of the PDSCH and SSB transmission resources are the same, for example. Even if the PCIs are from different cells, the resources of the PDSCH can be rate-matched around the SSB.
[0037] When the UE 110 performs resource mapping of the PDSCH around the SSB transmission for OD-SSB mode, the UE 110 can adjust the date rate of PDSCH or the SSB to align according to an allocated resource block size or resource allocation, effectively adding or removing bits or data resources from the data stream to fit the allocated transmission capacity, as can be indicated by the BS 122 via physical downlink control channel (PDCCH) , for example, RRC signaling, MAC-CE or other signaling.
[0038] FIG. 2 illustrates an example SSB 200 structure. The SSB 200 includes a synchronization signal (SS) / physical broadcast channel (PBCH) block information. The SSB 200 contains the primary synchronization signal (PSS) and the secondary synchronization signal (SSS) 210 for synchronization as an initial action to access the network. The SSB 200 provides the timing and frequency synchronization for the cell, containing the PBCH 204, 206 and 208, which includes the master information block (MIB) . The MIB further includes information broadcast in the NW cell regarding the cell configuration and other information for wireless communication with the base station. The system information block 1 (SIB1) or other SIBs can include other important information for NW operation that contains the physical random access channel (PRACH) configuration information element (IE) , and other information for a Random Access (RA) channel procedure to attach or connect to the NW and request uplink (UL) resources to send data, for example. However, the SSB transmission can be performed with a periodicity or periodically in an always on SSB or AO-SSB mode of operation. The SSB periodicity for enabling initial access, for example, can be at about 20ms, while the SIB1 may be transmitted by the NW with different periodicities such as 40ms, 80ms, 160ms, 320ms, etc., for example. The OFDM symbols can be concatenated and transmitted in OFDM slots for 5G, in which the number of symbols per slot could vary depending on the standard and subcarrier spacing. For example, subcarriers can be grouped into blocks (e.g., PRBs or RBs in blocks of 12) , each comprising a number of subcarriers (e.g., 12 or other number) and a number of OFDM symbols (e.g., 14 or other number) as resource elements or REs.
[0039] If the UE is not aware of an extended SSB (e.g., 40ms, 80ms, 160ms, 320ms, etc. ) , the UE potentially may not be able to adequately perform cell search in an initial access or discover important system information for handover to a target cell or RRC redirection to a target carrier frequency of a cell. However, SSB transmission can be performed with a periodicity or periodically in an always on SSB or AO-SSB mode of operation. The SSB for enabling initial access can be at about 20 milliseconds (ms) or extended further such as 5ms, 10ms, 20ms, 40 ms, 80 ms, 160 ms, etc., for example. Thus, on-demand SSB / SIB1 operations between the UE 110 and the base station 122 (e.g., gNB or the like) in a connected state or other state of operation can realize further energy savings through a reduction in the SSB transmissions from the NW by configuring these transmissions to be on-demand SIB1 transmissions in an OD-SSB mode without a regular periodicity, for example, especially on an SCC of an SCell.
[0040] To support on-demand SSB operations, the UE 110 can be configured with configuration information that indicates SSB transmission positions in the SCC 108 to utilize for resource mapping the PDSCH around the resources of the SSB. Based on this configuration information or the SSB transmission positions indicated, the UE can determine whether an RE or a PRB is available for the PDSCH in an OFDM symbol, and resource map (or rate-match) the resources to align accordingly, or not, at particular corresponding SSB indices with indicated SSB transmission position locations. The UE 110 thus can operate to rate-match resources for the PDSCH around the SSB (e.g., an OD-SSB) at frequencies or time locations needed, but not do so when there is no SSB because those resources can also be used for processing the PDSCH. Therefore, the UE 110 can be configured to perform rate-matching or resource mapping in a more dynamic manner to increase network energy savings.
[0041] Alternatively, or additionally, with the aspects described herein, the UE 110 can operate to determine one or more time domain locations of an SSB based on an SSB periodicity from an RRC configuration or RRC message and at least one of: a system frame number (SFN) offset, a half-frame index, an SSB time offset, or a parameter that indicates a time offset between an AO-SSB and a no always-on SSB, for example, or OD-SSB. The UE 110 can determine whether an RE or PRB is available for the PDSCH in the OFDM symbol based on the one or more time domain locations for resource mapping the PDSCH with the one or more time domain locations of the SSB.
[0042] FIG. 3 illustrates an example signal flow 300 between the UE 110 and the base station 122 (e.g., a gNB, network device or other network component) . The UE 110 can operate to monitor, process, decode or activate on-demand signaling for SSB transmissions based on a message or indication 302a from the base station 122 telling the UE 110 that the NW is operating SSB transmission in an on-demand mode or a no always-on SSB mode by notifying the UE 110 of the on-demand status / mode of the corresponding cell (e.g., SCell 104) and that on-demand SSB transmissions are forthcoming. In this manner, the NW can increase energy savings while managing ever-increasing network complexity and congestion. The NW or base station 122 can initiate the on-demand SSB transmissions / operations 304 with the UE 110 via a signaling 302 including configuration information. The configuration information can include a configuration parameter or a configuration with SSB transmission positions, for example.
[0043] Alternatively or additionally, signaling 302b can be initiated by the UE 110 with a UE request or signal (e.g., a WUS, or other signal) to trigger or initiate SSB transmission in an OD-SSB mode of operation for the UE 110 to perform SSB-based RRM measurement on the SCell 104. Alternatively, signaling 302b can come before signaling 302a, and signaling 302a be sent in response to signaling 302b. The BS 122 can then consider the UE request signaling 302b by signaling 302a to the UE 110 that SSB transmissions will initiate via indications in the configuration information based on the UE request, or move to provide an SSB activation signal 303. The BS 122 can provide the configuration information based on the UE request signal 102b, or not and do so independently without any UE request of signaling 302b. The UE 110 may not provide any request signaling 102b, and the network decide to provide configuration information for SSB transmission in an OD-SSB mode independently of UE request signaling 102b based on conditions of the network. NW signaling 302a, or both 302a and 302b may also be referred to in general as signaling 302 for initiating OD-SSB operation and associated configuration information as discussed herein.
[0044] The NW signaling 302 can comprise a physical layer 1 (L1) / MAC layer 2 (L2) / RRC layer 3 (L3) signaling with configuration information indicating SSB transmission positions of a configuration parameter (e.g., an OD-SSB configuration, or other RRC configuration parameter) in the SCC 108, and that SSB operations are to be activated or being initiated in an OD-SSB mode. Once SSB transmission is activated via signal 303 in an OD-SSB mode of operation, the NW initiates OD-SSB transmission 306. The UE 110 can configure resource mapping operations 304 by monitoring, decoding, activating, or processing for the SSB transmissions 306 based on the configuration information of the signaling 302 along with a PDSCH transmission 308 received concurrently or separate in time to the SSB transmission 306.
[0045] In an aspect, the UE 110 can receive a MAC-CE comprising an SSB activation command or other activation signaling (e.g., RRC signaling, or SCell activation 612 of FIG. 6) . Based on having received the activation 303 of OD-SSB mode for an SCell, the configuration / parameter indicating SSB positions in the frequency locations, the UE 110 can determine whether RE (s) or the PRB (s) are available for the PDSCH in an OFDM symbol and perform resource mapping or rate-matching of the PDSCH around the SSB for frequency locations of overlap and assume or perform rate-matching after an application time T from receiving the OD-SSB activation 303. The application time can be determined from the time the UE 110 assumes or determines that rate-matching is to be performed with the PDSCH 308 around the SSB resources by a time T or a minimum T (Tmin) after receiving the MAC-CE activation command or RRC activation signal for OD-SSB mode, for example.
[0046] The application time can be an additional time margin for operating rate-matching operations or resource mapping operation in OD-SSB mode by monitoring, processing, decoding or performing resource mapping based on the configuration parameter of the configuration information received, based on receiving the activation and based on the application time for operating in OD-SSB mode for performing resource mapping at frequency or time location (s) .
[0047] In an aspect, resource mapping operations (as rate-matching operation (s) 310) can be performed by the UE 110 without the UE 110 having to consider a PCI or PCID. For example, an SSB in AO-SSB mode (e.g., on the PCC 106 of the PCell 102, or other CC of another cell) can be received or processed from the BS 122, while an SSB in OD-SSB mode (e.g., on the SCC 108 of the SCell 104, or other CC of another cell) can be received or processed from the BS 122. Each of CCs could have different PCIs or PCIDs associated with them, and the UE 110 can be configured to perform resource matching of the PDSCH 308 around the SSB even with different PCIs or PCIDs; in other words the PCIs or PCIDs do not have to be the same and the UE 110 can perform resource mapping regardless of a PCI or PCID. The UE 110 can perform rate matching or resource mapping of the PDSCH 308 based on SSB transmission positions indicated by a configuration parameter of an AO-SSB (or SSB in AO-SSB mode) on one carrier that is associated with a different PCI / PCID for an SSB than on another CC (e.g., the SSB in OD-SSB mode of operation / transmission) that is being resource matched with the PDSCH 308, for example. In this manner, resource mapping of the PDSCH 308 with the SSB 306 (e.g., an OD-SSB 306) can be performed regardless of the PCI / PCID, but rather based on the configured SSB transmission positions in a burst (e.g., an SSB burst or transmission opportunity) alone or another configuration / parameter (e.g., an OD-SSB configuration / parameter, odssb-ratematchingpattern or the like) .
[0048] In one example, signaling for energy saving by on-demand NW operation can be configured as a message or indication through the MAC Layer 2 or RRC Layer 3, for example. L2 / L3 signaling can comprise a MAC-CE or RRC message, respectively, for activation of the OD-SSB operations 304 for on-demand SSB transmission. The NW enables (activates) or disables (deactivates) SSB transmissions 306 by an indication or message in signaling 303 and 314, respectively. For example, SSB activation 303 can include an SSB activation command via a MAC-CE or an SSB activation signal via RRC messaging.
[0049] Once the BS 122 activates the SSB transmissions 306 in an OD-SSB mode with the UE 110, the UE 110 can determine whether REs or PRBs are available or unavailable for the PDSCH 308 in OFDM symbols based on the configuration information or the SSB transmission positions indicated as a part of ongoing OD-SSB operations 304 for the SSB activation. In an aspect, the configuration information comprises an SSB configuration parameter indicating the SSB transmission positions in a burst, where SSB configuration parameter is an SSB positions in burst (ssb-PositionslnBurst) parameter, or an ssb-PositionslnBurst release 19 (ssb-PositionslnBurst-r19) parameter, with bits associated with SSB indices for a no always-on SSB mode or OD-SSB mode. The bits can each indicate SSB transmission positions at various SSB indices, by which the UE 110 can determine whether PDSCH resource allocation overlaps with the RE, or the PRB, for an SSB transmission, and perform resource mapping operations 310 of the PDSCH with the SSB at those indices where overlap is determined or an RE or PRB is determined to be unavailable for the PDSCH accordingly.
[0050] In an aspect, the configuration information can comprise an RRC parameter that is an ssb-PositionslnBurst parameter, an ssb-PositionslnBurst-release19 (r19) parameter, or an ssb-PositionslnBurst parameter of an always on SSB (AO-SSB) , which can be periodic on the PCC 106, for example, or on the SCC 108. For example, the AO-SSB parameter indicating the SSB transmission positions could be received via the PCC 106 of the PCell 102 or another SCC and then used for determining resources of the PDSCH 308 that overlap with the SSB 306 on the SCC 108 of the SCell 104. The UE 110 can then operate to perform the resource mapping operations 310 of the PDSCH 308 with the SSB 306 based on the SSB transmission positions indicated by the configuration parameter of the configuration information on the SCC 108. The UE 110 can use the resource mapping to provide data transmissions 312 to the BS 12 after obtaining the SSB for normal operation in a connected state, moving from airplane mode to normal mode, cell handover, inter-radio access technology (RAT) handover (Wi-Fi to cell, Cell-to-WiFi, or other licensed / unlicensed handover) , or other operation for resuming normal data communication.
[0051] BS 122 can further indicate to the U E 110 via an SSB deactivation signaling 314 for on-demand SSB transmission 306 to cease and indicate that the BS will no longer transmit the OD-SSB transmissions 306 via an additional L2 / L3 signaling and cease the OD-SSB mode of operation. Thus, the base station 122 can stop the OD-SSB transmission with the UE 110 by explicitly indicating a deactivation command or deactivation signal / message in another L2 / L3 signaling message 314. The activation and deactivation signaling 303, 312, respectively, in this case can both be the same L2 signaling or L3 signaling, or be different from one another such that one signaled in an L2 signaling and the other is an L3 signaling, via MAC-CE or RRC, for example. Alternatively, or additionally, the SSB in OD-SSB mode can be deactivated via the deactivation signal 314 of a configuration / indication based on a number N of SSB bursts that are to be transmitted after OD-SSB is activated or deactivated, or based on a time period or expiration of a timer after the OD-SSB receives the deactivation.
[0052] In an aspect, the UE 110 can receive a deactivation signal or deactivation command 314 via an RRC or MAC-CE, for example. In response to receiving the deactivation 314, the UE 110 can determine whether the RE or the PRB is available for the PDSCH in the OFDM symbol at various positions or SSB indices without considering the configuration parameter of the configuration information and use one or more REs, or one or more PRBs, which had overlapped, or otherwise would overlap, with the SSB transmission positions at other indices indicated in the configuration parameter for processing the PDSCH. When OD-SSB is deactivated by receiving a deactivation or termination command / signal, the UE 110 no longer resource maps or rate-matches the PDSCH around SSB resources based on a number N of SSB bursts to be transmitted after deactivation or from activation of the OD-SSB mode, as indicated by the deactivation 314 or as predefined for the UE 110. As with the rate-matching the PDSCH around SSB based on receiving an OD-SSB activation as well as an application time discussed above, the UE 110 can further cease to assume or no longer perform resource mapping according to the configuration information based on an application time also. The application time from receiving the deactivation 314 can be a same or different time for no longer applying the configuration information for resource mapping or no longer assuming resource mapping after the application time T after receiving OD-SSB deactivation 314, for example. Additionally, or alternatively, the deactivation or termination 314 of OD-SSB mode can be based on a timer or a period of time of a timer (not shown) at the UE 110, which can be indicated or initiated by the deactivation or termination signal received and as a part of, or separate to, the application time for deactivating the OD-SSB mode. A Time instance (e.g., time A) can be the beginning of the first slot containing the first actually transmitted SSB index within the first possible OD-SSB burst, which is at least T slots after the slot where UE receives a signaling from base station to indicate OD-SSB transmission in slot n. For example, T value can be K1 plus a period of milliseconds (e.g., 3 ms +1ms + a potential additional time margin, or the like) , where K1 can be a slot indicated for a physical uplink control channel (PUCCH) transmission with a hybrid automatic repeat request acknowledgement (HARQ-ACK) information corresponding to a PDSCH carrying OD-SSB activation signaling, for example.
[0053] In an aspect, the UE 110 identifies whether REs or PRBs are available for processing the PDSCH 308 in OFDM symbols based on the configuration or parameter indicating the SSB positions in a burst to perform resource mapping of the PDSCH 308 around the SSB 306. The REs or PRBs can be allocated for an SSB, but used for the PDSCH 308 if the configuration / parameter indicates no SSB for a particular SSB index associated with no SSB transmission position; thus, the UE 110 does not resource map the PDSCH 308 for resources at these SSB indices with no corresponding SSB transmission position. Likewise, when REs or PRBs are not identified as available for the PDSCH 308 based on the configuration / parameter indicating the SSB positions are present for corresponding SSB indices, the UE 110 can operate to resource map the PDSCH 308 with or around the SSB 306.
[0054] Alternatively, or additionally, the UE 110 can operate to perform resource mapping of the PDSCH 308 around the SSB 306 based on a rate-matching parameter (e.g., odssb-ratematchingpattern, resource mapping pattern configuration parameter, or other parameter of a configuration, an OD-SSB configuration or other configuration) received by the UE. The rate-matching pattern parameter could serve as a priority over the other configuration parameter that indicates the SSB transmission positions in a burst (e.g., ssb-PositionslnBurst, ssb-PositionslnBurst-r19, or ssb-PositionslnBurst of an AO-SSB) . The UE 110 could use both parameters to further provide surety of the allocated resources and when to perform resource matching, or not, to avoid consequences from any miscommunication / reception. For example, if the rate-matching pattern parameter indicates the PDSCH 308 is to be rate-matched with the SSB, but the ssb-PositionslnBurst parameter does not indicate an SSB is present for an SSB indices, then the UE 110 can perform resource mapping with the PDSCH anyway based on the rate matching pattern of the rate-matching parameter. Likewise, if both the ssb-PositionslnBurst and the resource matching parameter (or rate-matching parameter) do not indicate an SSB indices is to be resource mapped, the UE 110 could then not perform resource matching of the PDSCH 308, for example. Although, if the SSB transmissions in a burst indicates rate matching at an SSB position or indices is demanded or needed, while the rate-matching parameter does not for some reason, the UE 110 could perform rate-matching of the PDSCH 308 around the SSB 306 also so that priority is given towards resource mapping operations being performed based on the ssb-PositionslnBurst parameter, the rate-matching parameter, or both with a priority toward rate-matching if any one parameter indicates SSB resources will be needed for an SSB with the PDSCH 308 for any particular location or SSB index, for example.
[0055] FIGs. 4 and 5 illustrates example 400 and 500of configurations 402 and 502 for SSB transmission as configuration information elements (IEs) , respectively, for SSB transmission parameters, including the ssb-PositionslnBurst parameters 404 and 504 in bold.
[0056] The configuration 402 of FIG. 4 is a serving cell configuration common system information block (SIB) (ServingCellConfigCommonSIB) of a serving cell configuration common SIB IE with an ssb-PositionslnBurst parameter 404 that can indicate bits associated with SSB indices that further indicate at which SSB indices the SSB is being provided to the UE 110 from BS 122. The configuration 400 can be used to configure cell specific parameters of a UE′sserving cell in SIB1, for example. The ssb-PositionslnBurst parameter 404 can also be a specific Release 19 parameter as a ssb-PositionslnBurst-r19 parameter for release 19 capable UEs, or an ssb-PositionslnBurst parameter of an AO-SSB (e.g., as for the PCC 106 of PCell 102, or another parameter of an OD-SSB configuration) . The ssb-PositionslnBurst parameter 404 can also indicate time domain positions of the transmitted SS-blocks in an SS-burst as defined in the standards. For operation with shared spectrum channel access in FR1, only inOneGroup may be used and the UE 110 interprets this field same as mediumBitmap in ServingCefiConfigCommon. The UE 110 can assume that a bit in inOneGroup at position is 0, where is obtained from master information block (MIB) as specified in the standards of 3GPP. For operation with shared spectrum channel access in FR2-2, the m-th bit in groupPresence is set to 0 for where is obtained from MIB as specified in the standards.
[0057] The configuration 502 of FIG. 5 is a serving cell configuration common (ServingCellConfigCommon) of a serving cell configuration common IE with an ssb-PositionslnBurst parameter 504 that can indicates bits associated with SSB indices that further indicate which SSB indices the SSB is being provided to the UE 110 from BS 122. The configuration 500 can be used to configure cell specific parameters of a UE′s serving cell. The IE contains parameters that a UE could typically acquire from SSB, MIB or SIBs when accessing the cell from an IDLE state.
[0058] With the IE 502, the network provides this information in dedicated signaling when configuring the UE 110 with one or more SCells or with an additional secondary cell group (SCG) . It also provides it for special cells (SpCells) (e.g., a master cell group (MCG) and SCG) upon reconfiguration with synchronization. The ssb-PositionslnBurst parameter 504 can be provided for operation in licensed spectrum to indicate time domain positions of the transmitted SS-blocks in a half frame with SS / PBCH blocks as defined in standards. The first / leftmost bit can correspond to SS / PBCH block or SSB index 0, the second bit correspond to SS / PBCH block or SSB index 1, and so on. Value 0 in the bitmap can indicate that the corresponding SS / PBCH block or SSB is not transmitted, while value 1 indicates that the corresponding SS / PBCH block or SSB is transmitted. Alternatively, the reverse values could be defined for use similarly. The network can configure the same pattern in this field or configuration IE 502 as in the corresponding field in ServingCellConfigCommonSIB 402 as illustrated in FIG. 4.
[0059] For operation with shared spectrum channel access, the UE 110 can assume that one or more SS / PBCH blocks (or SSB) indicated by ssb-PositionslnBurst may be transmitted within the discovery burst transmission window or transmission opportunity and have candidate SS / PBCH blocks or SSB indexes corresponding to SS / PBCH block or SSB indexes provided by ssb-PositionslnBurst. If the k-th bit of ssb-PositionslnBurst is set to 1, the UE assumes that one or more SS / PBCH blocks or SSBs within the discovery burst transmission window with candidate SS / PBCH block (or SSB) indexes corresponding to SS / PBCH block index equal to k -1 may be transmitted; if the kt-th bit is set to 0, the UE 110 assumes that the corresponding SS / PBCH block (s) are not transmitted. The k-th bit is set to 0, where k > ssb-PositionQCL and the number of actually transmitted SS / PBCH blocks is not larger than the number of 1′sin the bitmap, for example. The network can configure the same pattern in this field as in the corresponding field in ServingCellConfigCommonSIB as illustrated in FIG. 4. For operation with shared spectrum channel access in FR1, mediumBitmap can be used, and for FR2-2, longBitmap can be used, for example.
[0060] FIG. 6 illustrates an example of SSB operation timings for signaling configuration information according to aspects herein. As discussed above, the configuration information can include one or more configurations or configuration parameters signaled via a MAC-CE, or RCC. For example, the configuration information can include an SSB configuration parameter indicating the SSB transmission positions in a burst in an ssb-PositionslnBurst parameter, an ssb-PositionslnBurst-r19 parameter, or an ssb-PositionslnBurst parameter of an AO-SSB, depending on whether the signaling, the UE 110, or the BS 122 is operating in an AO-SSB mode or an OD-SSB mode for PCell102 or SCell 104. This parameter can include bits or a bitmap associated with SSB indices that indicate whether PDSCH resource allocation overlap with an RE, or a PRB, for SSB transmission. If overlap is present, the UE 110 can perform resource mapping of the PDSCH (e.g., PDSCH 308 of FIG. 3) around the SSB (e.g., SSB 306 of FIG. 3) , and know at what indices to do so.
[0061] Referring to FIG. 3, the indication or signaling 302 of the configuration information from the BS 122 to the UE 110 can be received or processed for implementation of OD-SSB signaling at various times within the signal flow 300. FIG. 6 illustrates various aspects for when the UE 110 can operate to monitor, process and resource map the PDSCH around the SSB for an OD-SSB operation (e.g., in an OD-SSB mode, or a no-always SSB mode) on SCell 104, for example.
[0062] In an aspect, the UE 110 can operate OD-SSB mode to resource map the PDSCH around the SSB with the configuration information based on SCell activation or deactivation. For example, the UE 110 can initiate OD-SSB operation based on an SCell activation command received by, or via, a MAC-CE, or an SCell activation signal via another mechanism (e.g., RRC signaling) .
[0063] In one example, the UE 110 can receive the OD-SSB indication or the configuration information of signaling 302 from the BS 122 in a duration 602 before receiving an SCell activation (e.g., before receiving a SCell activation command (CMD) 612 via a MAC-CE) . The UE 110 can thus receive the signaling 302 to initiate OD-SSB operation (including monitoring for and performing resource mapping the PDSCH around the SSB along with any associated configuration information for doing so at particular SSB indices) before receiving the SCell activation 612 and at, or after, receiving the SCell configuration / addition (e.g., via RRC) for performing carrier aggregation with the SCC 108 of SCell 104, for example.
[0064] Alternatively, or additionally, the UE 110 can receive OD-SSB indication or initiate OD-SSB operations based on signaling 302 from the BS 122 at the same time or same slot as receiving SCell activation 612, which can also be in a same slot as the PDSCH.
[0065] Alternatively, or additionally, the UE 110 can receive OD-SSB indication or initiate OD-SSB operations based on signaling 302 from the BS 122 after receiving the SCell activation in slot n 612, but before the SCell is activated or completed, or during SCell activation 604. The SCell 104 can be considered activated after the UE 110 first transmits channel state information (CSI) feedback, for example, which can be in n plus K1 plus a period of milliseconds (e.g., 3 ms+1ms or the like) , where K1 is a slot indicated for a PUCCH transmission with HARQ-ACK information corresponding to a PDSCH carrying SCell activation command, for example. The period of milliseconds (e.g., 3ms or the like) can be a time for conducting time / frequency synchronization, CSI measurement and generating the first CSI feedback from receiving the SCell activation 612, for example.
[0066] Alternatively, or additionally, the UE 110 can receive OD-SSB indication or initiate OD-SSB operations based on signaling 302 from the BS 122. Time instance A is the beginning of the first slot containing the first actually transmitted SSB index within the first possible OD-SSB burst which is at least T slots after the slot where UE receives a signaling from gNB to indicate OD-SSB transmission in slot n. For example, the T value can be K1 plus a period of milliseconds (e.g., 3 ms+1ms+pontential additional time margin, or the like) , where K1 is a slot indicated for a PUCCH transmission with HARQ-ACK information corresponding to a PDSCH carrying OD-SSB activation signaling, for example.
[0067] Alternatively, or additionally, the UE 110 can receive OD-SSB indication or configuration information for an OD-SSB mode in the duration 606 when, or after, SCell activation is completed 614.
[0068] The UE 110 can operate to monitor, process, decode or activate on-demand signaling for SSB transmissions based on a message or signaling indication 302 from the base station 122 indicating to the UE 110 that the NW is operating SSB transmission in an OD-SSB mode or a no always-on SSB mode on the SCell 104.
[0069] FIG. 7 illustrates operations of resource mapping for PDSCH around SSB transmission based on a configured parameter of SSB positions in a burst or other OD-SSB configuration for an OD-SSB mode. Once the UE 110 receives configuration information indicating SSB transmission positions in an SSB burst, the UE 110 can use these indicated SSB positions 702 to determine whether REs or PRBs are available for the PDSCH in OFDM symbols. If these resources are not available, based on the SSB positions in an SSB burst 702, then the UE 110 performs resource mapping of the PSDCH around the SSB being received at that particular SSB index. The SSB burst can be shorter than the SSB periodicity (e.g., 80 ms, 160 ms, or other duration) . Thus, the UE 110 can continue to utilize the SSB transmission positions in a burst 702 indicated repeatedly within the period or at each SSB period thereafter, until receiving a different configuration or parameter.
[0070] In an example, the SSB positions in a burst 702 can include four bits, or another number of bits (e.g., 8 or other number of bits) . Each bit value can indicate whether SSB is present at the particular indices. A value of “1” , for example, can indicate the presence of SSB being transmitted, where a value of “0” can indicate an absence of SSB where rate-matching, or resource mapping of the PDSCH would not be an optimal use of processing resources and the energy for resource mapping the PDSCH with SSB (e.g., SSB 200 of FIG. 2) could be saved.
[0071] As illustrated in FIG. 7, the configuration parameter indicating the SSB transmission positions could, for example, be [1 0 0 1] or other bit pattern or number of bit value, with each bit value corresponding to SSB indices 0, 1, 2, 3, respectively. Thus, the SSB transmission positions indicated (e.g., by an ssb-PositionslnBurst parameter) can each indicate in a bitmap or a set of bits whether the SSB is being transmitted or is not being transmitted; from which the UE 110 can determine whether REs or PRBs are available for the PDSCH in OFDM symbols.
[0072] For example, a first set of bits of a first value (e.g., those of “1” ) in the configuration parameter can indicate the SSB transmission positions as frequency locations associated with a first set of SSB indices (SSB indices 0 and 3) . Additionally, a second set of bits of a second value (e.g., “0” ) in the configuration parameter can be associated with a second set of SSB indices (e.g., SSB indices 1 and 2) ; the UE 110 can schedule resources that had otherwise overlapped in frequency locations with the SSB at other indices for the PDSCH based on those values at SSB indices for which SSB is not positioned at those frequency locations.
[0073] The SSB transmission positions can be indicated via an RRC parameter, OD-SSB configuration or another configuration / parameter. The RRC configuration parameter, for example, can be an ssb-PositionslnBurst parameter, an ssb-PositionslnBurst-r19 parameter, or an ssb-PositionslnBurst associated with an AO-SSB mode of SSB transmission such as on the PCC 106 of PCell 102. The UE 110 determines SS / PBCH block or SSB transmission according to ssb-PositionslnBurst-r19 (an existing ssb-PositionslnBurst or ssb-PositionslnBurst for AO-SSB) for OD-SSB if the PDSCH resource allocation overlaps with PRBs containing SS / PBCH block transmission resources, and the UE 110 determines that the PRBs containing SS / PBCH block transmission resources are not available for PDSCH in these OFDM symbols. In this case, because the resources are not available, the UE 110 operates to perform resource mapping of the PDSCH around the SSB or OD-SSB transmission whether or not the PCI or PCID are the same, or even when the PCI or PCID of the transmissions are different.
[0074] In an aspect, the UE 110 can receive a MAC-CE comprising an SSB activation command or other activation signaling (e.g., activation 612 of FIG. 6) . Based on having received the activation of OD-SSB mode for an SCell, the configuration / parameter indicating SSB positions in the frequency locations, and an application time, the UE 110 can determine whether RE (s) or the PRB (s) are available for the PDSCH in an OFDM symbol and perform resource mapping or rate-matching of the PDSCH around the SSB for frequency locations of overlap. The application time can be determined from the time the UE 110 assumes or determines that rate-matching is to be performed with the PDSCH around the SSB resources by a time T or a minimum T (Tmin) after receiving the MAC-CE activation command or RRC activation signal for OD-SSB mode, for example.
[0075] The application time can be an additional time margin for operating rate-matching operations or resource mapping operation in OD-SSB mode by monitoring, processing, decoding or performing resource mapping based on the time configuration parameter of the configuration information received, receiving the activation and application time for operating in OD-SSB mode by performing resource mapping at frequency or time location (s) .
[0076] When an OD-SSB mode is activated via a MAC-CE or an RRC, rate matching for the PDSCH can be based on the SSB positions in a burst for SSB transmission. If the OD-SSB is indicated to be transmitted (e.g., at an SSB index corresponding to a “1” bit value of the SSB positions in a burst configuration parameter 802) , the UE 110 can determine the SS / PBCH block transmission is occurring and if the PDSCH resource allocation overlaps with the REs or PRBs containing the SS / PBCH block transmission resources. The UE 110 then determines that these resources of REs or PRBs containing SS / PBCH resources are not available for the PDSCH in the OFDM symbols at this SSB index, and thus, the PDSCH cannot be mapped to these resources, in which case the UE 110 performs resource mapping, or rate-matching, of the PDSCH with the SSB. However, for positions at SSB indices where the REs or PRBs of the SSB can be mapped to and thereby used for the PDSCH, then resource mapping or rate-matching is not performed, such as at locations with a “0” value or a different value. As such, the UE 110 can perform resource mapping or rate-matching based on receiving the SSB activation for OD-SSB mode, and further determine whether the RE or the PRB is available for the PDSCH in the OFDM symbol based on a configuration parameter of the configuration information with SSB transmission positions in an SSB burst.
[0077] In an aspect, when the UE 110 receives a deactivation signal or deactivation command (e.g., deactivation signal 314 of FIG. 3) via a MAC-CE or RRC, for example, the UE can determine whether the RE or the PRB is available for the PDSCH in the OFDM symbol without considering the configuration parameter of the configuration information and use one or more REs, or one or more PRBs, that had overlapped with the SSB transmission positions at other indices indicated in the configuration parameter for processing the PDSCH. When OD-SSB is deactivated by receiving a deactivation or termination command / signal, the UE 110 no longer resource maps or rate-matches the PDSCH around SSB resources based on a number N of SSB bursts to be transmitted after deactivation or from activation of the OD-SSB mode, as indicated in the deactivation signal 314 or as predefined. Additionally, or alternatively, the deactivation or termination of OD-SSB mode can be based on a timer or period of time of a timer (not shown) at the UE 110, which can be indicated or initiated by the deactivation or termination signal received. If OD-SSB is indicated to be stopped (or deactivated or terminated) , the UE 110 can assume or determine that PRBs or REs of the SS / PBCH or SSB configuration by ssb-PositionslnBurst-r19 parameter are available for the PDSCH in the OFDM symbols regardless of the OD-SSB configuration or the parameter.
[0078] FIG. 9 illustrates an example of resource mapping PDSCH around SSB in OD-SSB mode that is based on a configuration parameter of a rate-matching pattern. The UE 110 can receive an RRC configuration, or an OD-SSB configuration, comprising the rate-matching pattern 902 (e.g., odssb-ratematchingpattern) . The rate-matching pattern 902 can, for example, be an odssb-ratematchingpattern or other RRC configuration parameter as a resource mapping parameter that indicates a pattern for the UE 110 to use for performing resource mapping of the PDSCH around SSB in OD-SSB mode.
[0079] The UE 110 can receive the rate-matching pattern as a separate parameter independent of the SSB positions in a burst parameter (e.g., parameter 702, 802) or other received configuration information. At SSB indices where the rate-matching parameter differs from or conflicts with the SSB transmissions positions indicated from another parameter (e.g., ssb-PositionslnBurst or ssb-PositionslnBurst-r19) , the UE 110 can prioritize the rate-matching pattern parameter 902 for determining when to resource map the PDSCH around the SSB resources allocated. For example, where the ssb-PositionslnBurst parameter 702 or 802, is 1 0 0 1, but the rate-matching pattern indicates the pattern as 1 1 0 1 in a bitmap pattern associated with the SSB indices, the UE 110 can operate to perform resource mapping at the SSB indices 0, 1 and 3, and not at SSB index 2, where neither parameter indicates rate-matching; each of the bits can correspond to SSB indices 0, 1, 2, 3, respectively. Although the SSB transmission positions in a burst indicate no SSB at index 1, the UE 110 can still perform resource mapping the PDSCH as if there is SSB transmission by assuming that the SSB is positioned at this frequency location and based on the rate matching pattern parameter 90 of an OD-SSB configuration or other configuration. By prioritizing the rate-matching pattern parameter 902 to the SSB transmission position parameter (e.g., parameter 702 or 802) indicated (e.g., via a MAC-CE) , any period of ambiguity between signaling depending successful signal reception or misunderstanding of resources during a period of time can be enhanced by making signaling of OD-SSB mode less dynamic at these times or periods.
[0080] In particular, for bits with a value (e.g., “1” ) at associated SSB indices (e.g., indices 0, 1 and 3) in the rate matching pattern parameter 902, the UE 110 can configure resource mapping the PDSCH around the SSB transmission in OD-SSB mode, and for bits with another value (e.g., “0” ) , the UE 110 can schedule the PDSCH using resources that otherwise would be allocated for SSB transmission without having to perform rate matching of the PDSCH with SSB resources. Alternatively, the bit values can be “0” to indicate resource mapping, and “1” to indicate no resource mapping, and is not necessarily subject to any one bit value association as long as the association remains consistent or predetermined for purposes of resource mapping based on the rate-matching pattern to indicate resource allocation for scheduling resources appropriately.
[0081] The UE 110 can receive the rate-matching pattern 902 as a part of the configuration information in a same or different signaling from the SSB positions in a burst parameter. For example, rate-matching pattern 902 can be received via RRC signaling, and the SSB positions in a burst can be receive via a MAC-CE. Alternatively, or additionally, each can be receive via the same type of signaling a MAC-CE or an RRC signaling.
[0082] FIG. 10 is an example process flow 1000 for performing resource mapping of the PDSCH around SSB transmission resources allocated for SSB transmission in an OD-SSB mode of an SCell. The process flow 1000 can initiate at 1010 with receiving configuration information by a UE 110 or processing the configuration information in a processor (or processing circuitry) of a UE 110, BS 122, or other network component. At 1020, the process flow 1020 includes receiving a PDSCH, or processing the PDSCH with the processor. At 1030, the process flow 1000 further comprises identifying whether one or more REs or PRBs are available for the PDSCH in OFDM symbol (s) based on the configuration information.
[0083] The processor or UE 110 can operate to identify whether REs or PRBs are available for the PDSCH in OFDM symbols based on a radio resource control (RRC) parameter or configuration parameter of the configuration information having a first set of bits of a first value associated with first SSB indices indicating the SSB transmission positions. Scheduling of resources can then be performed with those resources that had overlapped or would otherwise overlapped with an SSB transmission for the PDSCH based on a second set of bits of a second value associated with different SSB indices in the configuration parameter of the configuration information. RRC parameter or configuration parameter can include an ssb-PositionslnBurst parameter, an ssb-PositionslnBurst of release 19 parameter, or an ssb-PositionslnBurst parameter associated with an AO-SSB mode of SSB transmission, which could be configured for the PCell, for example. Resource mapping of the PDSCH with the SSB can then be performed at appropriate SSB indices with frequency resources regardless of PCIs or PCIDs being the same or different for different cells.
[0084] In an aspect, the process flow 1000 can include identifying whether an RE or PRB is available for the PDSCH in the OFDM symbol based on a configuration parameter of the configuration information that indicates the SSB transmission positions in response to receiving an SSB activation, via a medium access control (MAC) control element (MAC-CE) or an RRC configuration. The one or more resources that overlapped at the SSB transmission positions indicated can be used for processing the PDSCH based on a number of SSB bursts, or a time period of a timer in response to receiving the SSB activation, via a medium access control (MAC) control element (MAC-CE) or an RRC configuration. The deactivation can begin based on a number of bursts or a time period of a timer, for example.
[0085] Alternatively, or additionally, the process flow 1000 can include resource mapping the PDSCH with an RE, or PRB, comprising SSB transmission resources of the SSB transmission positions, based on a rate-matching pattern configuration parameter of an on-demand-SSB configuration or another configuration of the configuration information. Resources can be scheduled that overlapped with an SSB transmission for the PDSCH based on the rate-matching pattern configuration parameter (e.g., an odssb-ratematchingpattern or other parameter) despite the SSB transmission positions of the configuration information indicating no SSB transmission at an SSB index, and not when both parameters indicate no SSB position is located at an SSB index and resource mapping, or rate-matching, is not indicated for the SSB index. In other words, scheduling the PDSCH with resources that had overlapped with an SSB transmission for the PDSCH (in other SSB indices) can be scheduled, in response to the rate-matching pattern configuration parameter indicating no rate-matching is to be performed at the SSB index and an RE, or PRB, being available for the PDSCH at the SSB index based on the SSB transmission positions (e.g., in ssb-PositionslnBurst parameter) of the configuration information.
[0086] FIG. 11 is an example network 1100 according to one or more implementations described herein. Example network 1100 can include UEs 110-1, 110-2, etc. (referred to collectively as “UEs 110” and individually as “UE 110” ) , a radio access network (RAN) or BS 122, a core network (CN) 1130, application servers 1140, and external networks 1150.
[0087] UEs 110 can communicate and establish a connection with (be communicatively coupled to) RAN 122, which can involve one or more wireless channels 1114-1 and 1114-2, each of which can comprise a physical communications interface / layer. In some implementations, a UE can be configured with dual connectivity (DC) as a multi-radio access technology (multi-RAT) or multi-radio dual connectivity (MR-DC) , where a multiple receive and transmit (Rx / Tx) capable UE can use resources provided by different network nodes or base stations 122 (e.g., 122-1 and 122-2) that can be connected via non-ideal backhaul (e.g., where one network node provides NR access and the other network node provides either E-UTRA for LTE or NR access for 5G) . In such a scenario, one network node can operate as a master node (MN) and the other as the secondary node (SN) . The MN and SN can be connected via a network interface, and at least the MN can be connected to the CN 1130. Additionally, at least one of the MN or the SN can be operated with shared spectrum channel access, and functions specified for UE 110 can be used for an integrated access and backhaul mobile termination (lAB-MT) . Similar for UE 110, the lAB-MT can access the network using either one network node or using two different nodes with enhanced dual connectivity (EN-DC) architectures, new radio dual connectivity (NR-DC) architectures, or other direct connectivity such as an SL communication channel as an SL interface 1112.
[0088] In some implementations, a base station (as described herein) can be an example of network node 122. As shown, UE 110 can additionally, or alternatively, connect to access point (AP) 1116 via connection interface 1118, which can include an air interface enabling UE 110 to communicatively couple with AP 1116. AP 1116 can comprise a wireless local area network (WLAN) , WLAN node, WLAN termination point, etc. The connection 1118 can comprise a local wireless connection, such as a connection consistent with any IEEE 702.11 protocol, and AP 1116 can comprise a wireless fidelity router or other AP. AP 1116 could be also connected to another network (e.g., the Internet) without connecting to RAN 122 or CN 1130.
[0089] RAN 122 can also include one or more RAN nodes 122-1 and 122-2 (referred to collectively as RAN nodes 122, and individually as RAN node 122) that enable channels 1114-1 and 1114-2 to be established between UEs 110 and RAN 122. RAN nodes 122 can include network access points configured to provide radio baseband functions for data or voice connectivity between users and the network based on one or more of the communication technologies described herein (e.g., 2G, 3G, 4G, 5G, WiFi, etc. ) . As examples therefore, a RAN node can be an E-UTRAN Node B (e.g., an enhanced Node B, eNodeB, eNB, 4G base station, etc. ) , a next generation base station (e.g., a 5G base station, NR base station, next generation eNBs (gNB) , etc. ) . RAN nodes 122 can include a roadside unit (RSU) , a transmission reception point (TRxP or TRP) , and one or more other types of ground stations (e.g., terrestrial access points) . In some scenarios, RAN node 122 can be a dedicated physical device, such as a macrocell base station, or a Iow power (LP) base station for providing femtocells, picocells or other like having smaller coverage areas, smaller user capacity, or higher bandwidth compared to macrocells.
[0090] Some or all of RAN nodes 122 can be implemented as one or more software entities running on server computers as part of a virtual network, which can be referred to as a centralized RAN (CRAN) or a virtual baseband unit pool (vBBUP) . In these implementations, the CRAN or vBBUP can implement a RAN function split, such as a packet data convergence protocol (PDCP) split wherein radio resource control (RRC) and PDCP layers can be operated by the CRAN / vBBUP and other Layer 2 (L2) protocol entities can be operated by individual RAN nodes 122; a media access control (MAC) / physical (PHY) layer split wherein RRC, PDCP, radio link control (RLC) , and MAC layers can be operated by the CRAN / vBBUP and the PHY layer can be operated by individual RAN nodes 122; or a “lower PHY” split wherein RRC, PDCP, RLC, MAC layers and upper portions of the PHY layer can be operated by the CRAN / vBBUP and lower portions of the PHY layer can be operated by individual RAN nodes 122. This virtualized framework can allow freed-up processor cores of RAN nodes 122 to perform or execute other virtualized applications, for example.
[0091] In some implementations, an individual RAN node 122 can represent individual gNB-distributed units (DUs) connected to a gNB-control unit (CU) via individual F1 interfaces. In such implementations, the gNB-DUs can include one or more remote radio heads or radio frequency (RF) front end modules (RFEMs) , and the gNB-CU can be operated by a server (not shown) located in RAN 122 or by a server pool (e.g., a group of servers configured to share resources) in a similar manner as the CRAN / vBBUP. Additionally, or alternatively, one or more of RAN nodes 122 can be next generation eNBs (i.e., gNBs) that can provide evolved universal terrestrial radio access (E-UTRA) user plane and control plane protocol terminations toward UEs 110, and that can be connected to a 5G core network (5GC) 1130 via a Next Generation (NG) interface 1124.
[0092] Any of the RAN nodes 122 can terminate an air interface protocol and can be the first point of contact for UEs 110. In some implementations, any of the RAN nodes 122 can fulfill various logical functions for the RAN 122 including, but not limited to, radio network controller (RNC) functions such as radio bearer management, uplink and downlink dynamic radio resource management and data packet scheduling, and mobility management. UEs 110 can be configured to communicate using orthogonal frequency-division multiplexing (OFDM) communication signals with each other or with any of the RAN nodes 122 over a multicarrier communication channel in accordance with various communication techniques, such as, but not limited to, an OFDMA communication technique (e.g., for downlink communications) or a single carrier frequency-division multiple access (SC-FDMA) communication technique (e.g., for uplink and ProSe or sidelink (SL) communications) , although the scope of such implementations cannot be limited in this regard. The OFDM signals can comprise a plurality of orthogonal subcarriers.
[0093] A physical downlink shared channel (PDSCH) can carry user data and higher layer signaling to UEs 110. The physical downlink control channel (PDCCH) can carry information about the transport format and resource allocations related to the PDSCH channel, among other things. The PDCCH can also inform UEs 110 about the transport format, resource allocation, and hybrid automatic repeat request (HARQ) information related to the uplink shared channel. Typically, downlink scheduling (e.g., assigning control and shared channel resource blocks to UE 110-2 within a cell) can be performed at any of the RAN nodes 122 based on channel quality information fed back from any of UEs 110. The downlink resource assignment information can be sent on the PDCCH used for (e.g., assigned to) each of UEs 110.
[0094] The PDCCH uses control channel elements (CCEs) to convey the control information, wherein a number of CCEs (e.g., 6 or other number) can consists of a resource element groups (REGs) , where a REG is defined as a physical resource block (PRB) in an OFDM symbol. Before being mapped to resource elements, the PDCCH complex-valued symbols can first be organized into quadruplets, which can then be permuted using a sub-block interleaver for rate matching, for example. Each PDCCH can be transmitted using one or more of these CCEs, where each CCE can correspond to nine sets of four physical resource elements known as REGs. Four quadrature phase shift keying (QPSK) symbols can be mapped to each REG. The PDCCH can be transmitted using one or more CCEs, depending on the size of the DCI and the channel condition. There can be four or more different PDCCH formats with different numbers of CCEs (e.g., aggregation level, L=1, 2, 4, 8, or 16) .
[0095] The RAN nodes 122 may be configured to communicate with one another via interface 1123. In implementations where the system is an LTE system, interface 1123 may be an X2 interface. In LTE networks, X2 and S1 interface are defined as the interfaces between RAN nodes and between RAN and Core Network. 5G may operate in two modes as non-standalone and standalone mode. For non-standalone operation the specification defines the extension for S1 and X2 interfaces as for standalone operation as X2 / Xn for the interface between RAN nodes 122 and S1 / NG for the interface 1124 between RAN 122 and CN 1130. The interface 1124 may be defined between two or more RAN nodes 122 (e.g., two or more eNBs / gNBs or a combination thereof) that connect to evolved packet core (EPC) , the CN 1130, or between eNBs connecting to an EPC. In some implementations, the X2 / Xn interface may include an X2 / Xn user plane interface (X2-U / Xn-U) and an X2 control plane interface (X2-C / Xn-C) . The X2-U / Xn-U may provide flow control mechanisms for user data packets transferred over the X2 / Xn interface and may be used to communicate information about the delivery of user data between eNBs or gNBs. For example, the X2-U / Xn-U may provide specific sequence number information for user data transferred from a master eNB (MeNB) to a secondary eNB (SeNB) ; information about successful in sequence delivery of PDCP packet data units (PDUs) to a UE 110 from an SeNB for user data; information of PDCP PDUs that were not delivered to a UE 110; information about a current minimum desired buffer size at the SeNB for transmitting to the UE user data; and the like. The X2-C / Xn-C may provide intra-LTE access mobility functionality (e.g., including context transfers from source to target eNBs, user plane transport control, etc. ) , load management functionality, and inter-cell interference coordination functionality.
[0096] Alternatively, or additionally, RAN 122 can be also connected (e.g., communicatively coupled) to CN 1130 via a Next Generation (NG) interface as interface 1124. The NG interface 1124 can be split into two parts, a Next Generation (NG) user plane (NG-U) interface 1126, which carries traffic data between the RAN nodes 122 and a User Plane Function (UPF) , and the S1 control plane (NG-C) interface 1128, which is a signaling interface between the RAN nodes 122 and Access and Mobility Management Functions (AMFs) .
[0097] CN 1130 can comprise a plurality of network elements 1132, which are configured to offer various data and telecommunications services to customers / subscribers (e.g., users of UEs 110) who are connected to the CN 1130 via the RAN 122. In some implementations, CN 1130 can include an evolved packet core (EPC) , a 5G CN, and / or one or more additional or alternative types of CNs. The components of the CN 1130 can be implemented in one physical node or separate physical nodes including components to read and execute instructions from a machine-readable or computer-readable medium (e.g., a non-transitory machine-readable storage medium) .
[0098] As shown, CN 1130, application servers 1140, and external networks 1150 can be connected to one another via interfaces 1134, 1136, and 1138, which can include IP network interfaces. Application servers 1140 can include one or more server devices or network elements (e.g., virtual network functions (VNFs) offering applications that use IP bearer resources with CN 1130 (e.g., universal mobile telecommunications system packet services (UMTS PS) domain, LTE PS data services, etc. ) . Application servers 1140 can also, or alternatively, be configured to support one or more communication services (e.g., voice over IP (VolP sessions, push-to-talk (PTT) sessions, group communication sessions, social networking services, etc. ) for UEs 110 via the CN 1130. Similarly, external networks 1150 can include one or more of a variety of networks, including the Internet, thereby providing the mobile communication network and UEs 110 of the network access to a variety of additional services, information, interconnectivity, and other network features.
[0099] In an aspect, the UE, baseband processor of the UE 110 or processing circuitry of the BS 122 can operate to process configuration information indicating SSB transmission positions in an SCC for an operation of SSB activation or an SSB deactivation with the PDSCH received. The processing circuitry can determine whether REs or PRBs are available for the PDSCH in OFDM symbols based on the configuration information. The configuration information can include an ssb-PositionslnBurst parameter, an ssb-PositionslnBurst-r19 parameter, an ssb-PositionslnBurst parameter of AO-SSB, or a rate-matching pattern configuration parameter comprising a bitmap.
[0100] Additionally, or alternatively, the processing circuitry or processor can operate to determine one or more time domain locations of an SSB based on an SSB periodicity from an RRC message and at least one of: a system frame number (SFN) offset, a half-frame index, an SSB time offset, or a parameter that indicates a time offset between an AO-SSB and a no always-on SSB (e.g., for an OD-SSB mode or other mode) . The processing circuitry can further determine whether the REs or the PRBs are available for the PDSCH in the OFDM symbol based on the one or more time domain locations to be used for resource mapping the PDSCH with the one or more time domain locations of the SSB.
[0101] One or more network components, devices or systems of network 1700 is configured to process, perform, generate, communicate or cause execution of any one or more combined aspects described herein or in association with any of the FIGs. 1 thru 10 herein.
[0102] Referring to FIG. 12, illustrated is a block diagram of a UE 110 (e.g., UE 110-1 or 110-2) or other network device / component 1200 (e.g., V-UE / P-UE, loT, gNB, eNB, base station, NTN satellite 160 or other participating network entity / component) . The device 1200 includes one or more processors 1210 (e.g., one or more baseband processors) comprising processing circuitry and associated interface (s) , transceiver circuitry 1220 (e.g., comprising RF circuitry, which can comprise transmitter circuitry (e.g., associated with one or more transmit chains) and / or receiver circuitry (e.g., associated with one or more receive chains) that can employ common circuit elements, distinct circuit elements, or a combination thereof) , and a memory 1230 (which can comprise any of a variety of storage mediums and can store instructions and / or data associated with one or more of processor (s) 1210 or transceiver circuitry 1220) .
[0103] Memory 1230 (as well as other memory components discussed herein, e.g., memory, data storage, or the like) can comprise one or more machine-readable medium / media including instructions that, when performed by a machine or component herein cause the machine or other device to perform acts of a method, an apparatus or system for communication using multiple communication technologies according to aspects, embodiments and examples described herein. It is to be understood that aspects described herein can be implemented by hardware, software, firmware, or any combination thereof. When implemented in software, functions can be stored on or transmitted over as one or more instructions or code on a computer-readable medium (e.g., the memory described herein or other storage device) . Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media or a computer readable storage device can be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or other tangible and / or non-transitory medium, that can be used to carry or store desired information or executable instructions. Any connection can be also termed a computer-readable medium.
[0104] Memory 1230 can include executable instructions, and be integrated in, or communicatively coupled to, processor or processing circuitry 1210. The executable instructions of the memory 1230 can cause processing circuitry 1210 to receive / process the instructions to receive / process / determine / generate resource mapping operations associated with the PDSCH around the SSB in OD-SSB mode.
[0105] The device 1200 is configured to process, perform, generate, communicate or cause execution of any one or more combined aspects described herein or in association with any of the FIGs. 1 thru 11.
[0106] While the methods described within this disclosure are illustrated in and described herein as a series of acts or events, it will be appreciated that the illustrated ordering of such acts or events are not to be interpreted in a limiting sense. For example, some acts can occur in different orders and / or concurrently with other acts or events apart from those illustrated and / or described herein. In addition, not all illustrated acts can be required to implement one or more aspects or embodiments of the description herein. Further, one or more of the acts depicted herein can be carried out in one or more separate acts and / or phases. Reference can be made to the figures described above for ease of description. However, the methods are not limited to any particular embodiment, aspect or example provided within this disclosure and can be applied to any of the systems / devices / components disclosed herein.
[0107] It is well understood that the use of personally identifiable information should follow privacy policies and practices that are generally recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy of users. In particular, personally identifiable information data should be managed and handled so as to minimize risks of unintentional or unauthorized access or use, and the nature of authorized use should be clearly indicated to users.
[0108] The present disclosure is described with reference to attached drawing figures, wherein like reference numerals are used to refer to like elements throughout, and wherein the illustrated structures and devices are not necessarily drawn to scale. As utilized herein, terms “component, ” “system, ” “interface, ” and the like are intended to refer to a computer-related entity, hardware, software (e.g., in execution) , and / or firmware. For example, a component can be a processor (e.g., a microprocessor, a controller, or other processing device) , a process running on a processor, a controller, an object, an executable, a program, a storage device, a computer, a tablet PC and / or a user equipment (e.g., mobile phone, etc. ) with a processing device. By way of illustration, an application running on a server and the server can be also a component. One or more components can reside within a process, and a component can be localized on one computer and / or distributed between two or more computers. A set of elements or a set of other components can be described herein, in which the term “set” can be interpreted as “one or more. ”
[0109] Further, these components can execute from various computer readable storage media having various data structures stored thereon such as with a module, for example. The components can communicate via local and / or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and / or across a network, such as, the Internet, a local area network, a wide area network, or similar network with other systems via the signal) .
[0110] As another example, a component can be an apparatus with specific functionality provided by mechanical parts operated by electric or electronic circuitry, in which the electric or electronic circuitry can be operated by a software application or a firmware application executed by one or more processors. The one or more processors can be internal or external to the apparatus and can execute at least a part of the software or firmware application. As yet another example, a component can be an apparatus that provides specific functionality through electronic components without mechanical parts; the electronic components can include one or more processors therein to execute software and / or firmware that confer (s) , at least in part, the functionality of the electronic components.
[0111] Use of the word exemplary is intended to present concepts in a concrete fashion. As used in this application, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or” . That is, unless specified otherwise, or clear from context, “X employs A or B” is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then “X employs A or B” is satisfied under any of the foregoing instances. In addition, the articles “a” and “an” as used in this application and the appended claims should generally be construed to mean “one or more” unless specified otherwise or clear from context to be directed to a singular form. Furthermore, to the extent that the terms “including” , “includes” , “having” , “has” , “with” , or variants thereof are used in either the detailed description and the claims, such terms are intended to be inclusive in a manner similar to the term “comprising. ” Additionally, in situations wherein one or more numbered items are discussed (e.g., a “first X” , a “second X” , etc. ) , in general the one or more numbered items can be distinct, or they can be the same, although in some situations the context can indicate that they are distinct or that they are the same.
[0112] As used herein, the term “circuitry” can refer to, be part of, or include an Application Specific Integrated Circuit (ASIC) , an electronic circuit, a processor (shared, dedicated, or group) , or associated memory (shared, dedicated, or group) operably coupled to the circuitry that execute one or more software or firmware programs, a combinational logic circuit, or other suitable hardware components that provide the described functionality. In some embodiments, the circuitry can be implemented in, or functions associated with the circuitry can be implemented by, one or more software or firmware modules. In some embodiments, circuitry can include logic, at least partially operable in hardware.
[0113] As it is employed in the subject specification, the term “processor” can refer to substantially any computing processing unit or device including, but not limited to including, single-core processors; single-processors with software multithread execution capability; multi-core processors; multi-core processors with software multithread execution capability; multi-core processors with hardware multithread technology; parallel platforms; and parallel platforms with distributed shared memory. Additionally, a processor can refer to an integrated circuit, an application specific integrated circuit, a digital signal processor, a field programmable gate array, a programmable logic controller, a complex programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions and / or processes described herein. Processors can exploit nano-scale architectures such as, but not limited to, molecular and quantum-dot based transistors, switches and gates, in order to optimize space usage or enhance performance of mobile devices. A processor can also be implemented as a combination of computing processing units.
[0114] Examples (aspects) can include subject matter such as a method, means for performing acts or blocks of the method, at least one machine-readable medium including instructions that, when performed by a machine (e.g., a processor with memory, an application-specific integrated circuit (ASIC) , a field programmable gate array (FPGA) , or the like) cause the machine to perform acts of the method or of an apparatus or system for concurrent communication using multiple communication technologies according to embodiments and examples described herein.
[0115] Moreover, various aspects or features described herein can be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques. The term ″article of manufacture″as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc. ) , optical disks (e.g., compact disk (CD) , digital versatile disk (DVD) , etc. ) , smart cards, and flash memory devices (e.g., EPROM, card, stick, key drive, etc. ) . Additionally, various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term “machine-readable medium” can include, without being limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data. Additionally, a computer program product can include a computer readable medium having one or more instructions or codes operable to cause a computer to perform functions described herein.
[0116] Communications media embody computer-readable instructions, data structures, program modules or other structured or unstructured data in a data signal such as a modulated data signal, e.g., a carrier wave or other transport mechanism, and includes any information delivery or transport media. The term “modulated data signal” or signals refers to a signal that has one or more of its characteristics set or changed in such a manner as to encode information in one or more signals. By way of example, and not limitation, communication media include wired media, such as a wired network or direct-wired connection, and wireless media such as acoustic, RF, infrared and other wireless media.
[0117] An exemplary storage medium can be coupled to processor, such that processor can read information from, and write information to, storage medium. In the alternative, storage medium can be integral to processor. Further, in some aspects, processor and storage medium can reside in an ASIC. Additionally, ASIC can reside in a user terminal. In the alternative, processor and storage medium can reside as discrete components in a user terminal. Additionally, in some aspects, the processes and / or actions of a method or algorithm can reside as one or any combination or set of codes and / or instructions on a machine-readable medium and / or computer readable medium, which can be incorporated into a computer program product.
[0118] In this regard, while the disclosed subject matter has been described in connection with various embodiments and corresponding Figures, where applicable, it is to be understood that other similar embodiments can be used or modifications and additions can be made to the described embodiments for performing the same, similar, alternative, or substitute function of the disclosed subject matter without deviating therefrom. Therefore, the disclosed subject matter should not be limited to any single embodiment described herein, but rather should be construed in breadth and scope in accordance with the appended claims below.
[0119] In particular regard to the various functions performed by the above described components (assemblies, devices, circuits, systems, etc. ) , the terms (including a reference to a ″means″) used to describe such components are intended to correspond, unless otherwise indicated, to any component or structure which performs the specified function of the described component (e.g., that is functionally equivalent) , even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations of the disclosure. In addition, while a particular feature can have been disclosed with respect to only one of several implementations, such feature can be combined with one or more other features of the other implementations as can be desired and advantageous for any given or particular application.
Claims
1.A user equipment (UE) , comprising:a memory; andprocessing circuitry, comprising the memory, configured to execute instructions that cause the UE to:receive configuration information indicating synchronization signal block (SSB) transmission positions in a secondary component carrier for an operation of an SSB activation or an SSB deactivation;receive a physical downlink shared channel (PDSCH) ; anddetermine whether a resource element (RE) or a physical resource block (PRB) is available for the PDSCH in an orthogonal frequency domain multiplexing (OFDM) symbol based on the configuration information.2.The UE of claim 1, wherein the configuration information comprises an SSB configuration parameter indicating the SSB transmission positions in a burst, wherein the SSB configuration parameter is an SSB positions in burst (ssb-PositionslnBurst) parameter, or an ssb-PositionslnBurst release 19 (ssb-PositionslnBurst-r19) parameter, with bits associated with SSB indices for a no always-on SSB mode, the bits indicating whether PDSCH resource allocation overlaps with the RE, or the PRB, for an SSB transmission.3.The UE of claim 1, wherein the configuration information comprises a radio resource control (RRC) parameter that is an ssb-PositionslnBurst parameter, an ssb-PositionslnBurst-release19 (r19) parameter, or an ssb-PositionslnBurst parameter of an always on SSB (AO-SSB) that is periodic on the secondary component carrier.4.The UE of claim 1, the processing circuitry is further configured to cause the UE to:identify whether the RE or the PRB comprises an SSB transmission resource that is unavailable for the PDSCH in the OFDM symbol based on a SSB positions-in-a-burst (ssb-PositionslnBurst) parameter of the configuration information; andresource map the PDSCH with the SSB transmission resource based on the SSB transmission positions configured in an SSB burst, regardless of a physical cell identity (PCI) , and the RE, or the PRB, being identified as unavailable for the PDSCH in the OFDM symbol.5.The UE of claim 1, the processing circuitry is further configured to cause the UE to:in response to receiving the SSB activation, via a medium access control (MAC) control element (MAC-CE) or an RRC transmission, determine whether the RE or the PRB is available for the PDSCH in the OFDM symbol based on a configuration parameter of the configuration information; andin response to receiving, via the MAC-CE or the RRC transmission, the SSB deactivation, determine whether the RE or the PRB is available for the PDSCH in the OFDM symbol without considering the configuration parameter of the configuration information and use one or more REs, or one or more PRBs, that overlapped with the SSB transmission positions indicated in the configuration parameter for processing the PDSCH.6.The UE of claim 1, the processing circuitry is further configured to cause the UE to:resource map the PDSCH with the RE, or the PRB, comprising an SSB transmission resource based on the SSB transmission positions configured, regardless of a physical cell identity (PCI) ; anddeactivate resource mapping of the PDSCH with the SSB transmission resource in response to receiving the SSB deactivation and based on a number of SSB bursts or a time period of a timer.7.The UE of claim 1, the processing circuitry is further configured to cause the UE to:receive a MAC-CE comprising an SSB activation command, wherein the determining whether the RE or the PRB is available for the PDSCH in the OFDM symbol is based on a configuration parameter of the configuration information, the SSB activation command and an application time.8.The UE of claim 7, wherein the configuration parameter comprises an on-demand SSB (OD-SSB) configuration parameter, a ssb-PositionslnBurst parameter, a ssb-PositionslnBurst parameter-r19, or a ssb-PositionslnBurst parameter of an AO-SSB.9.The UE of claim 1, the processing circuitry is further configured to cause the UE to:determine whether the RE or the PRB is available for the PDSCH in the OFDM symbol based on a rate-matching pattern configuration parameter, or a resource mapping pattern configuration parameter, of the configuration information.10.The UE of claim 1, the processing circuitry is further configured to cause the UE to:determine whether the RE or the PRB is available for the PDSCH in the OFDM symbol based on a rate-matching pattern configuration parameter, or a resource mapping pattern configuration parameter, of the configuration information regardless of the SSB transmission positions of the configuration information.11.The UE of claim 1, the processing circuitry is further configured to cause the UE to:determine one or more time domain locations of an SSB based on an SSB periodicity from an RRC message and at least one of: a system frame number (SFN) offset, a half-frame index, an SSB time offset, or a parameter that indicates a time offset between an AO-SSB and a no always-on SSB; anddetermine whether the RE or the PRB is available for the PDSCH in the OFDM symbol based on the one or more time domain locations for resource mapping the PDSCH with the one or more time domain locations of the SSB.12.A method of a user equipment (UE) comprising:receiving configuration information indicating synchronization signal block (SSB) transmission positions in a secondary component carrier for an operation of an SSB activation or an SSB deactivation;receiving a physical downlink shared channel (PDSCH) ; anddetermining whether a resource element (RE) or a physical resource block (PRB) is available for the PDSCH in an orthogonal frequency domain multiplexing (OFDM) symbol based on the configuration information.13.The method of claim 12, further comprising:determining whether REs or PRBs are available for the PDSCH in OFDM symbols based on a radio resource control (RRC) parameter of the configuration information comprising a first set of bits of a first value that indicate the SSB transmission positions, wherein the first set of bits are associated with a first set of SSB indices; andscheduling resources that overlapped with an SSB transmission for the PDSCH based on a second set of bits of a second value in the RRC parameter of the configuration information, wherein the second set of bits are associated with a second set of SSB indices; andwherein the RRC parameter comprises an SSB positions in a burst (ssb-PositionslnBurst) parameter, an ssb-PositionslnBurst of release 19 (ssb-PositionslnBurst-r19) parameter, or an ssb-PositionslnBurst associated with an always-on SSB (AO-SSB) mode of SSB transmission.14.The method of claim 12, further comprising:identifying REs, or PRBs, comprising SSB transmission resources that are unavailable for the PDSCH in OFDM symbols based on a ssb-PositionslnBurst parameter, or an ssb-PositionslnBurst-r19 parameter, of the configuration information for an OD-SSB mode of SSB transmission; andperforming resource mapping of the PDSCH with the REs, or the PRBs, comprising the SSB transmission resources based on the SSB transmission positions, regardless of a physical cell identity (PCI) .15.The method of claim 12, further comprising:in response to receiving the SSB activation, via a medium access control (MAC) control element (MAC-CE) or an RRC configuration, determining whether the RE or the PRB is available for the PDSCH in the OFDM symbol based on a configuration parameter of the configuration information that indicates the SSB transmission positions, wherein the configuration parameter comprises a ssb-PositionslnBurst parameter, a ssb-PositionslnBurst parameter-r19, or a ssb-PositionslnBurst parameter of an AO-SSB.16.The method of claim 12, further comprising:in response to receiving, via an MAC-CE or an RRC configuration, the SSB deactivation, using one or more resources that overlapped at the SSB transmission positions for processing the PDSCH based on a number of SSB bursts, or a time period of a timer.17.The method of claim 12, further comprising:resource mapping the PDSCH with the RE, or the PRB, comprising SSB transmission resources of the SSB transmission positions, based on a rate-matching pattern configuration parameter of an on-demand-SSB configuration or another configuration of the configuration information; andscheduling resources that overlapped with an SSB transmission for the PDSCH based on the rate-matching pattern configuration parameter despite the SSB transmission positions of the configuration information indicating no SSB transmission at an SSB index.18.The method of claim 17, further comprising:scheduling the PDSCH with resources that overlapped with an SSB transmission for the PDSCH in response to the rate-matching pattern configuration parameter indicating no rate-matching is to be performed at another SSB index and the RE, or the PRB, being available for the PDSCH at the another SSB index based on the SSB transmission positions of the configuration information.19.A baseband processor configured to, when executing instructions stored in a memory, perform operations comprising:processing configuration information indicating synchronization signal block (SSB) transmission positions in a secondary component carrier for an operation of an SSB activation or an SSB deactivation;processing a physical downlink shared channel (PDSCH) ; anddetermining whether a resource element (RE) or a physical resource block (PRB) is available for the PDSCH in an orthogonal frequency domain multiplexing (OFDM) symbol based on the configuration information.20.The baseband processor of claim 19, wherein the configuration information comprises an SSB positions in burst (ssb-PositionslnBurst) parameter, an ssb-PositionslnBurst-release19 (ssb-PositionslnBurst-r19) parameter, an ssb-PositionslnBurst parameter of an always on SSB (AO-SSB) , or a rate-matching pattern configuration parameter comprising a bitmap.