A general- purpose processor may be a microprocessor, but in the alternative, the processor may be any commercially available processor, controller, microcontroller, or state machine. Means for processing, means for determining, means for computing, and/or means for obtaining may comprise a processing system, which may include one or more processors, such as the modem processor 210 of the UE 110 or the controller/processor 240 of the eNB 122 illustrated in FIG. A UE may know the specific REGs used for the PHICH and the PCFICH. The UE may search different combinations of REGs for the PDCCH. The number of combinations to search is typically less than the number of allowed combinations for the PDCCH.

The second base station 140 may be in communication with the second mobile network 104 over a wired or wireless connection 144. Various embodiments may be implemented within a communication system 100, an example of which is tse: cybr illustrated in FIG. The first base station 130 may broadcast the first mobile network 102 in a first serving cell 150. The second base station 140 may broadcast the second mobile network 104 in a second serving cell 160.

The chief intention with Associated style DRX will be to lower power utilization by way of discontinuous tracking with PDCCH siphon. In a hardware implementation, the machine -readable media may be part of the processing system separate from the processor. However, as those skilled in the art will readily appreciate, the machine-readable media, or any portion thereof, may be external to the processing system. By way of example, the machine-readable media may include a transmission line, a carrier wave modulated by data, and/or a computer product separate from the wireless node, all which may be accessed by the processor through the bus interface. Alternatively, or in addition, the machine-readable media, or any portion thereof, may be integrated into the processor, such as the case may be with cache and/or general register files.

It’s either WCDMA or LTE (or GSM/EDGE) for the MDM9200 in those devices. A general-purpose processor may be a microprocessor, but, in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.

In other examples, the MSMS communication device may be other suitable multi-SIM communication devices, with, for example, four or more SIMs, such that when one may be in use, the others may be deactivated. 7 is a schematic diagram illustrating an example of an extended inactivity timer duration according to various embodiments. In some embodiments, the extended inactivity timer duration is after a tune-away period corresponding to the activities of the second subscription. In some embodiments, the processor is configured to extend the awake period by the extended awake period by configuring the at least one RF resource to monitor downlink data in a PDSCH during the extended awake period.

The wireless communication device 900 may include a peripheral device connection interface 918 coupled to the processor 902. The peripheral device connection interface 918 may be singularly configured to accept one type of connection, or multiply configured to accept cdrx lte various types of physical and communication connections, common or proprietary, such as USB, FireWire, Thunderbolt, or PCIe. The peripheral device connection interface 918 may also be coupled to a similarly configured peripheral device connection port (not shown).

Alternatively, some steps or methods may be performed by circuitry that is specific to a given function. The wireless communication device 900 may also include speakers 914 for providing audio outputs. The wireless communication device 900 may also include a housing 920, constructed of a plastic, metal, or a combination of materials, for containing all or some of the components discussed herein.

The first cellular connection 132 may correspond to the first RAT of the wireless communication device 110. The wireless communication device 110 may also be in communication with the second mobile network 104 through a second cellular connection 142 to the second base station 140. The second cellular connection 142 may correspond to the second RAT of the wireless communication device 110, as in a multi-SIM context. The first base station 130 may be in communication with the first mobile network 102 over a wired or wireless connection 134.

Controller/processor 230 may also perform or direct the processing by UE 1 10 in FIG. Memory 232 may also store a priority list and configuration information. In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular RAT and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, an air interface, etc.

1.2 Discontinuous Reception (DRX) – reducing UE power consumption

But if channel quality is bad, not all errors may be corrected and receiver asks for re-transmission (similar to ARQ). In the PDCCH region in DL radio frame, there can be many places where a specific PDCCH is located and UE searches all the possible locations. The possible location for a PDCCH differs depending on whether the PDCCH is UE-Specific or Common, and also depend on what aggregation level is used. All the possible location for PDCCH is called ‘Search Space and each of the possible location is called ‘PDCCH Candidates’.

The operation of the RRC is guided by a state machine which defines certain specific states that a UE may be present in. The different states in this state machine have different amounts of radio resources associated with them and these are the resources that the UE may use when it is present in a given specific state.

Network informs UE of this timing using RRC ConnectionReconfiguration or RRC Connection Setup as follows (Following is the example configuration from RRC ConnectionReconfiguration, but you can do the samething in RRC Connection Setup as well). Here, the transmission attributes like Modulation Coding Scheme (MCS), Redundancy Version (RV), sub-carrier on which transmission is going to occur, does not remain same during each re-transmission but are notified by the sender. These attributes can be changed according to radio channel conditions, hence, it again provides flexibility but increases overhead.

The wireless communication device 900 may include a power source 922 coupled to the processor 902, such as a disposable or rechargeable battery. The rechargeable battery https://cryptolisting.org/ may also be coupled to a peripheral device connection port (not shown) to receive a charging current from a source external to the wireless communication device 900.

The answer to question iii) would be that you would save much energy on UE side but there may be longer delay for data reception when network wants to send some data. Even while there is no traffic between the network and UE, UE has to keep listening to Network. It means UE has to be “ON” all the time even when there is no traffic. There is truth to the fact that AT&T LTE devices are getting marginally better battery life too since they don’t have another radio camping 1x all the time.

Since different amounts of resources are available at different states the quality of the service that the user experiences and the energy consumption of the UE are influenced by this state machine. Transport channels define how and with what type of characteristics the data is transferred to the physical layer.

3 Power Management in LTE

Actually, LTE uses several different types of logical, transport and physical channel, which can be distinguished by the kind of information they carry and by the way in which the information is processed. These are used to segregate the different types of data and allow them to be transported across different layers. These channels provide interfaces to each layers within the LTE protocol stack and enable an orderly and defined segregation of the data.

A wireless communication device 110 may be associated with (within effective boundaries of) both the first serving cell 150 and the second serving cell 160. A wireless communication device provided with a plurality of SIMs and connected to two or more subscriptions with one subscription being active at a given time may be a Multi-SIM-Multi-Standby (MSMS) communication device. In one example, the MSMS communication device may be a Dual-SIM-Dual-Standby (DSDS) communication device, which may include two SIMs that may both be active on standby, but one may be deactivated when the other one may be activated. In another example, the MSMS communication device may be a Triple-SIM-Triple-Standby (TSTS) communication device, which includes three SIMs that may all be active on standby, where two may be deactivated when the third one may be in use.

Asynchronous and synchronous HARQ w.r.t. downlink and uplink is explained in further paragraphs. If the channel quality is good, errors are detected and corrected.

• Embodiments described herein relate to both the Short CDRX cycles and Long CDRX cycles.
• Downlink supports adaptive transmission i.e. resources are allocated afresh each time and sent on PDCCH.
• When DRX is enabled, there may be an extended delay in receiving data as, the UE may be in DRX Sleep state at the time of data arrival at the eNodeB, and the eNodeB would have to wait until the UE becomes ON.
• In other embodiments, the time the second-subscription activities 440 occur may not overlap with the sleep period 430.
• If the channel quality is good, errors are detected and corrected.
• Any UE that is in RRC Idle mode should wake up and check if there is any message for itself.

With Connected Mode DRX

Example user input components suitable for use in the wireless communication device 200 may include, but are not limited to, a keypad 224, a touchscreen display 226, and the microphone 212. While the wireless communication device 110 is shown connected to the mobile networks 102 and 104 via two cellular connections, in cdrx lte other embodiments (not shown), the wireless communication device 110 may establish additional network connections using at least one additional RAT. The wireless communication device 110 may be in communication with the first mobile network 102 through a first cellular connection 132 to the first base station 130.

An eNB may send the PDCCH to the UE in any of the combinations that the UE will search. In general, each entity may include any number of transmitters, receivers, processors, controllers, memories, communication units, etc. Other network entities may also be implemented in similar manner. A controller/processor 230 may direct the operation at UE 1 10. Controller/processor 230 may also perform or direct other processes for the techniques described herein.

In some embodiments, extending the awake period by the extended awake period includes configuring a RF resource of the wireless communication device to monitor downlink data in a PDSCH during the extended awake period. In some embodiments, the method further includes configuring a RF resource of the wireless communication device to monitor downlink data in a PDSCH during the awake period. The method of claim 16, wherein the extended inactivity timer duration is after a tune-away period corresponding to the activities of the second subscription. In this case, the receiver only has to be active at the beginning of each slot to receive the header, conserving battery life.

DCI Format 1 in LTE Downlink

A frequency may also be referred to as a carrier, a frequency channel, etc. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. The present disclosure relates generally to wireless communication, and more particularly, to methods and apparatus for long term evolution (LTE) connected discontinuous reception (CDRX) for single-radio hybrid tune away devices.

The periodicity is defined by Network and get informed to UE by RRC message (e.g, radioResourceConfigDedicated IE in RRC Connection Reconfiguration) as follows. There are three BRS types according to the timing UE send BSR.

Data and signalling messages are carried on transport channels between the MAC and the physical layer. Traffic channels carry data in the user plane, while logical control channels carry signalling messages in the control plane.

Power Management for 4G Mobile Broadband Wireless Access Networks

In a scenario in which the second-subscription activities 740 ends before the expiration of the inactivity timer duration 730, the scheduling module 230 or the general-purpose processor 206 may tune back to the first subscription for a remainder of the inactivity timer duration 730. In this scenario, the extended inactivity timer duration 750 may occur after the inactivity timer duration 730 with or without a gap therebetween. In some embodiments, the scheduling module 230 or the general-purpose processor 206 may extend the awake period 420 by the extended awake period 450 in response to determining the awake period 420 overlaps with the time the second-subscription activities occur 440, at block B320. The awake period 420 is extended by configuring the RF resource 218 to monitor downlink data in the PDSCH during the extended awake period 450, in addition to during the awake period 420.

Logical channels further can be divided into two categories as control channels and traffic channels. control channels carry signalling messages in the control plane and they can be either common channel or dedicated channel. A common channel https://cryptolisting.org/coin/xmo/ means common to all users in a cell (Point to multipoint ) where as Dedicated channels means channels can be used only by one user (Point to Point). These all three types of channel are present in Downlink as well as Uplink direction.

So Continous reception/Continous transmission means that “UE is always ON(Wake-up mode)”. In this diagram, a high-power transmitter broadcasts a paging message to a relatively large geographic area.

Regular BSR is sent when a New data arrives in UL buffer and the new data has higher priority than the one already waiting in the buffer. To be ready to recieve/transmit something, UE should be ‘ON’.

All pagers that operate on this system listen to all the pages sent, paying close attention for their specific address message. Paging messages are received and processed by a paging center. The paging center receives pages from the local telephone company or it may receive messages from a satellite network. After it receives these messages, they are sent after processing to the high-power paging transmitter by an encoder. The encoder converts the pagers telephone number or identification code entered by the caller to the necessary tones or digital signal to be sent by the paging transmitter.

The extended awake period 450 may be after the second-subscription activities occur 440. In some embodiments, the extended awake period 450 may occur directly after the second-subscription activities 440 occur with no gap therebetween. In some embodiments, the general-purpose processor 206, the memory 214, the baseband modem processor 216, and the RF resource 218 may be included in the wireless communication device 200 as a system-on-chip. In some embodiments, the SIMs 204a and 204b and their corresponding interfaces 202a, 202b may be external to the system-on-chip. Further, various input and output devices may be coupled to components on the system-on-chip, such as interfaces or controllers.

Home LTE NB-IoT 5G(NR-NSA)

The wireless communication device 900 may also include a physical button 924 for receiving user inputs. The wireless communication device 900 may also include a power button 926 for turning the wireless communication device 900 on and off.